| File: | var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h |
| Warning: | line 266, column 64 Access to field 'length' results in a dereference of a null pointer (loaded from variable 'data') |
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| 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |||
| 2 | * vim: set ts=8 sts=2 et sw=2 tw=80: | |||
| 3 | * This Source Code Form is subject to the terms of the Mozilla Public | |||
| 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this | |||
| 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |||
| 6 | ||||
| 7 | /* | |||
| 8 | * JS parser. | |||
| 9 | * | |||
| 10 | * This is a recursive-descent parser for the JavaScript language specified by | |||
| 11 | * "The ECMAScript Language Specification" (Standard ECMA-262). It uses | |||
| 12 | * lexical and semantic feedback to disambiguate non-LL(1) structures. It | |||
| 13 | * generates trees of nodes induced by the recursive parsing (not precise | |||
| 14 | * syntax trees, see Parser.h). After tree construction, it rewrites trees to | |||
| 15 | * fold constants and evaluate compile-time expressions. | |||
| 16 | * | |||
| 17 | * This parser attempts no error recovery. | |||
| 18 | */ | |||
| 19 | ||||
| 20 | #include "frontend/Parser.h" | |||
| 21 | ||||
| 22 | #include "mozilla/ArrayUtils.h" | |||
| 23 | #include "mozilla/Assertions.h" | |||
| 24 | #include "mozilla/Casting.h" | |||
| 25 | #include "mozilla/Range.h" | |||
| 26 | #include "mozilla/Sprintf.h" | |||
| 27 | #include "mozilla/Try.h" // MOZ_TRY* | |||
| 28 | #include "mozilla/Utf8.h" | |||
| 29 | #include "mozilla/Variant.h" | |||
| 30 | ||||
| 31 | #include <memory> | |||
| 32 | #include <new> | |||
| 33 | #include <type_traits> | |||
| 34 | ||||
| 35 | #include "jsnum.h" | |||
| 36 | #include "jstypes.h" | |||
| 37 | ||||
| 38 | #include "frontend/FoldConstants.h" | |||
| 39 | #include "frontend/FunctionSyntaxKind.h" // FunctionSyntaxKind | |||
| 40 | #include "frontend/ModuleSharedContext.h" | |||
| 41 | #include "frontend/ParseNode.h" | |||
| 42 | #include "frontend/ParseNodeVerify.h" | |||
| 43 | #include "frontend/Parser-macros.h" // MOZ_TRY_VAR_OR_RETURN | |||
| 44 | #include "frontend/ParserAtom.h" // TaggedParserAtomIndex, ParserAtomsTable, ParserAtom | |||
| 45 | #include "frontend/ScriptIndex.h" // ScriptIndex | |||
| 46 | #include "frontend/TokenStream.h" // IsKeyword, ReservedWordTokenKind, ReservedWordToCharZ, DeprecatedContent, *TokenStream*, CharBuffer, TokenKindToDesc | |||
| 47 | #include "irregexp/RegExpAPI.h" | |||
| 48 | #include "js/ColumnNumber.h" // JS::LimitedColumnNumberOneOrigin, JS::ColumnNumberOneOrigin | |||
| 49 | #include "js/ErrorReport.h" // JSErrorBase | |||
| 50 | #include "js/friend/ErrorMessages.h" // js::GetErrorMessage, JSMSG_* | |||
| 51 | #include "js/HashTable.h" | |||
| 52 | #include "js/RegExpFlags.h" // JS::RegExpFlags | |||
| 53 | #include "js/Stack.h" // JS::NativeStackLimit | |||
| 54 | #include "util/StringBuffer.h" // StringBuffer | |||
| 55 | #include "vm/BytecodeUtil.h" | |||
| 56 | #include "vm/FunctionFlags.h" // js::FunctionFlags | |||
| 57 | #include "vm/GeneratorAndAsyncKind.h" // js::GeneratorKind, js::FunctionAsyncKind | |||
| 58 | #include "vm/JSContext.h" | |||
| 59 | #include "vm/JSScript.h" | |||
| 60 | #include "vm/ModuleBuilder.h" // js::ModuleBuilder | |||
| 61 | #include "vm/Scope.h" // GetScopeDataTrailingNames | |||
| 62 | #include "wasm/AsmJS.h" | |||
| 63 | ||||
| 64 | #include "frontend/ParseContext-inl.h" | |||
| 65 | #include "frontend/SharedContext-inl.h" | |||
| 66 | ||||
| 67 | using namespace js; | |||
| 68 | ||||
| 69 | using mozilla::AssertedCast; | |||
| 70 | using mozilla::AsVariant; | |||
| 71 | using mozilla::Maybe; | |||
| 72 | using mozilla::Nothing; | |||
| 73 | using mozilla::PointerRangeSize; | |||
| 74 | using mozilla::Some; | |||
| 75 | using mozilla::Utf8Unit; | |||
| 76 | ||||
| 77 | using JS::ReadOnlyCompileOptions; | |||
| 78 | using JS::RegExpFlags; | |||
| 79 | ||||
| 80 | namespace js::frontend { | |||
| 81 | ||||
| 82 | using DeclaredNamePtr = ParseContext::Scope::DeclaredNamePtr; | |||
| 83 | using AddDeclaredNamePtr = ParseContext::Scope::AddDeclaredNamePtr; | |||
| 84 | using BindingIter = ParseContext::Scope::BindingIter; | |||
| 85 | using UsedNamePtr = UsedNameTracker::UsedNameMap::Ptr; | |||
| 86 | ||||
| 87 | using ParserBindingNameVector = Vector<ParserBindingName, 6>; | |||
| 88 | ||||
| 89 | static inline void PropagateTransitiveParseFlags(const FunctionBox* inner, | |||
| 90 | SharedContext* outer) { | |||
| 91 | if (inner->bindingsAccessedDynamically()) { | |||
| 92 | outer->setBindingsAccessedDynamically(); | |||
| 93 | } | |||
| 94 | if (inner->hasDirectEval()) { | |||
| 95 | outer->setHasDirectEval(); | |||
| 96 | } | |||
| 97 | } | |||
| 98 | ||||
| 99 | static bool StatementKindIsBraced(StatementKind kind) { | |||
| 100 | return kind == StatementKind::Block || kind == StatementKind::Switch || | |||
| 101 | kind == StatementKind::Try || kind == StatementKind::Catch || | |||
| 102 | kind == StatementKind::Finally; | |||
| 103 | } | |||
| 104 | ||||
| 105 | template <class ParseHandler, typename Unit> | |||
| 106 | inline typename GeneralParser<ParseHandler, Unit>::FinalParser* | |||
| 107 | GeneralParser<ParseHandler, Unit>::asFinalParser() { | |||
| 108 | static_assert( | |||
| 109 | std::is_base_of_v<GeneralParser<ParseHandler, Unit>, FinalParser>, | |||
| 110 | "inheritance relationship required by the static_cast<> below"); | |||
| 111 | ||||
| 112 | return static_cast<FinalParser*>(this); | |||
| 113 | } | |||
| 114 | ||||
| 115 | template <class ParseHandler, typename Unit> | |||
| 116 | inline const typename GeneralParser<ParseHandler, Unit>::FinalParser* | |||
| 117 | GeneralParser<ParseHandler, Unit>::asFinalParser() const { | |||
| 118 | static_assert( | |||
| 119 | std::is_base_of_v<GeneralParser<ParseHandler, Unit>, FinalParser>, | |||
| 120 | "inheritance relationship required by the static_cast<> below"); | |||
| 121 | ||||
| 122 | return static_cast<const FinalParser*>(this); | |||
| 123 | } | |||
| 124 | ||||
| 125 | template <class ParseHandler, typename Unit> | |||
| 126 | template <typename ConditionT, typename ErrorReportT> | |||
| 127 | bool GeneralParser<ParseHandler, Unit>::mustMatchTokenInternal( | |||
| 128 | ConditionT condition, ErrorReportT errorReport) { | |||
| 129 | MOZ_ASSERT(condition(TokenKind::Div) == false)do { static_assert( mozilla::detail::AssertionConditionType< decltype(condition(TokenKind::Div) == false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(condition(TokenKind::Div) == false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("condition(TokenKind::Div) == false", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 129); AnnotateMozCrashReason("MOZ_ASSERT" "(" "condition(TokenKind::Div) == false" ")"); do { *((volatile int*)__null) = 129; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 130 | MOZ_ASSERT(condition(TokenKind::DivAssign) == false)do { static_assert( mozilla::detail::AssertionConditionType< decltype(condition(TokenKind::DivAssign) == false)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(condition(TokenKind::DivAssign) == false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("condition(TokenKind::DivAssign) == false" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 130); AnnotateMozCrashReason("MOZ_ASSERT" "(" "condition(TokenKind::DivAssign) == false" ")"); do { *((volatile int*)__null) = 130; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 131 | MOZ_ASSERT(condition(TokenKind::RegExp) == false)do { static_assert( mozilla::detail::AssertionConditionType< decltype(condition(TokenKind::RegExp) == false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(condition(TokenKind::RegExp) == false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("condition(TokenKind::RegExp) == false" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 131); AnnotateMozCrashReason("MOZ_ASSERT" "(" "condition(TokenKind::RegExp) == false" ")"); do { *((volatile int*)__null) = 131; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 132 | ||||
| 133 | TokenKind actual; | |||
| 134 | if (!tokenStream.getToken(&actual, TokenStream::SlashIsInvalid)) { | |||
| 135 | return false; | |||
| 136 | } | |||
| 137 | if (!condition(actual)) { | |||
| 138 | errorReport(actual); | |||
| 139 | return false; | |||
| 140 | } | |||
| 141 | return true; | |||
| 142 | } | |||
| 143 | ||||
| 144 | ParserSharedBase::ParserSharedBase(FrontendContext* fc, | |||
| 145 | CompilationState& compilationState, | |||
| 146 | Kind kind) | |||
| 147 | : fc_(fc), | |||
| 148 | alloc_(compilationState.parserAllocScope.alloc()), | |||
| 149 | compilationState_(compilationState), | |||
| 150 | pc_(nullptr), | |||
| 151 | usedNames_(compilationState.usedNames) { | |||
| 152 | fc_->nameCollectionPool().addActiveCompilation(); | |||
| 153 | } | |||
| 154 | ||||
| 155 | ParserSharedBase::~ParserSharedBase() { | |||
| 156 | fc_->nameCollectionPool().removeActiveCompilation(); | |||
| 157 | } | |||
| 158 | ||||
| 159 | #if defined(DEBUG1) || defined(JS_JITSPEW1) | |||
| 160 | void ParserSharedBase::dumpAtom(TaggedParserAtomIndex index) const { | |||
| 161 | parserAtoms().dump(index); | |||
| 162 | } | |||
| 163 | #endif | |||
| 164 | ||||
| 165 | ParserBase::ParserBase(FrontendContext* fc, | |||
| 166 | const ReadOnlyCompileOptions& options, | |||
| 167 | bool foldConstants, CompilationState& compilationState) | |||
| 168 | : ParserSharedBase(fc, compilationState, ParserSharedBase::Kind::Parser), | |||
| 169 | anyChars(fc, options, this), | |||
| 170 | ss(nullptr), | |||
| 171 | foldConstants_(foldConstants), | |||
| 172 | #ifdef DEBUG1 | |||
| 173 | checkOptionsCalled_(false), | |||
| 174 | #endif | |||
| 175 | isUnexpectedEOF_(false), | |||
| 176 | awaitHandling_(AwaitIsName), | |||
| 177 | inParametersOfAsyncFunction_(false) { | |||
| 178 | } | |||
| 179 | ||||
| 180 | bool ParserBase::checkOptions() { | |||
| 181 | #ifdef DEBUG1 | |||
| 182 | checkOptionsCalled_ = true; | |||
| 183 | #endif | |||
| 184 | ||||
| 185 | return anyChars.checkOptions(); | |||
| 186 | } | |||
| 187 | ||||
| 188 | ParserBase::~ParserBase() { MOZ_ASSERT(checkOptionsCalled_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(checkOptionsCalled_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(checkOptionsCalled_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("checkOptionsCalled_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 188); AnnotateMozCrashReason("MOZ_ASSERT" "(" "checkOptionsCalled_" ")"); do { *((volatile int*)__null) = 188; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } | |||
| 189 | ||||
| 190 | JSAtom* ParserBase::liftParserAtomToJSAtom(TaggedParserAtomIndex index) { | |||
| 191 | JSContext* cx = fc_->maybeCurrentJSContext(); | |||
| 192 | MOZ_ASSERT(cx)do { static_assert( mozilla::detail::AssertionConditionType< decltype(cx)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(cx))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("cx", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 192); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cx" ")"); do { *((volatile int*)__null) = 192; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); | |||
| 193 | return parserAtoms().toJSAtom(cx, fc_, index, | |||
| 194 | compilationState_.input.atomCache); | |||
| 195 | } | |||
| 196 | ||||
| 197 | template <class ParseHandler> | |||
| 198 | PerHandlerParser<ParseHandler>::PerHandlerParser( | |||
| 199 | FrontendContext* fc, const ReadOnlyCompileOptions& options, | |||
| 200 | bool foldConstants, CompilationState& compilationState, | |||
| 201 | void* internalSyntaxParser) | |||
| 202 | : ParserBase(fc, options, foldConstants, compilationState), | |||
| 203 | handler_(fc, compilationState), | |||
| 204 | internalSyntaxParser_(internalSyntaxParser) { | |||
| 205 | MOZ_ASSERT(compilationState.isInitialStencil() ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(compilationState.isInitialStencil() == compilationState .input.isInitialStencil())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(compilationState.isInitialStencil () == compilationState.input.isInitialStencil()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("compilationState.isInitialStencil() == compilationState.input.isInitialStencil()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 206); AnnotateMozCrashReason("MOZ_ASSERT" "(" "compilationState.isInitialStencil() == compilationState.input.isInitialStencil()" ")"); do { *((volatile int*)__null) = 206; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 206 | compilationState.input.isInitialStencil())do { static_assert( mozilla::detail::AssertionConditionType< decltype(compilationState.isInitialStencil() == compilationState .input.isInitialStencil())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(compilationState.isInitialStencil () == compilationState.input.isInitialStencil()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("compilationState.isInitialStencil() == compilationState.input.isInitialStencil()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 206); AnnotateMozCrashReason("MOZ_ASSERT" "(" "compilationState.isInitialStencil() == compilationState.input.isInitialStencil()" ")"); do { *((volatile int*)__null) = 206; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 207 | } | |||
| 208 | ||||
| 209 | template <class ParseHandler, typename Unit> | |||
| 210 | GeneralParser<ParseHandler, Unit>::GeneralParser( | |||
| 211 | FrontendContext* fc, const ReadOnlyCompileOptions& options, | |||
| 212 | const Unit* units, size_t length, bool foldConstants, | |||
| 213 | CompilationState& compilationState, SyntaxParser* syntaxParser) | |||
| 214 | : Base(fc, options, foldConstants, compilationState, syntaxParser), | |||
| 215 | tokenStream(fc, &compilationState.parserAtoms, options, units, length) {} | |||
| 216 | ||||
| 217 | template <typename Unit> | |||
| 218 | void Parser<SyntaxParseHandler, Unit>::setAwaitHandling( | |||
| 219 | AwaitHandling awaitHandling) { | |||
| 220 | this->awaitHandling_ = awaitHandling; | |||
| 221 | } | |||
| 222 | ||||
| 223 | template <typename Unit> | |||
| 224 | void Parser<FullParseHandler, Unit>::setAwaitHandling( | |||
| 225 | AwaitHandling awaitHandling) { | |||
| 226 | this->awaitHandling_ = awaitHandling; | |||
| 227 | if (SyntaxParser* syntaxParser = getSyntaxParser()) { | |||
| 228 | syntaxParser->setAwaitHandling(awaitHandling); | |||
| 229 | } | |||
| 230 | } | |||
| 231 | ||||
| 232 | template <class ParseHandler, typename Unit> | |||
| 233 | inline void GeneralParser<ParseHandler, Unit>::setAwaitHandling( | |||
| 234 | AwaitHandling awaitHandling) { | |||
| 235 | asFinalParser()->setAwaitHandling(awaitHandling); | |||
| 236 | } | |||
| 237 | ||||
| 238 | template <typename Unit> | |||
| 239 | void Parser<SyntaxParseHandler, Unit>::setInParametersOfAsyncFunction( | |||
| 240 | bool inParameters) { | |||
| 241 | this->inParametersOfAsyncFunction_ = inParameters; | |||
| 242 | } | |||
| 243 | ||||
| 244 | template <typename Unit> | |||
| 245 | void Parser<FullParseHandler, Unit>::setInParametersOfAsyncFunction( | |||
| 246 | bool inParameters) { | |||
| 247 | this->inParametersOfAsyncFunction_ = inParameters; | |||
| 248 | if (SyntaxParser* syntaxParser = getSyntaxParser()) { | |||
| 249 | syntaxParser->setInParametersOfAsyncFunction(inParameters); | |||
| 250 | } | |||
| 251 | } | |||
| 252 | ||||
| 253 | template <class ParseHandler, typename Unit> | |||
| 254 | inline void GeneralParser<ParseHandler, Unit>::setInParametersOfAsyncFunction( | |||
| 255 | bool inParameters) { | |||
| 256 | asFinalParser()->setInParametersOfAsyncFunction(inParameters); | |||
| 257 | } | |||
| 258 | ||||
| 259 | template <class ParseHandler> | |||
| 260 | FunctionBox* PerHandlerParser<ParseHandler>::newFunctionBox( | |||
| 261 | FunctionNodeType funNode, TaggedParserAtomIndex explicitName, | |||
| 262 | FunctionFlags flags, uint32_t toStringStart, Directives inheritedDirectives, | |||
| 263 | GeneratorKind generatorKind, FunctionAsyncKind asyncKind) { | |||
| 264 | MOZ_ASSERT(funNode)do { static_assert( mozilla::detail::AssertionConditionType< decltype(funNode)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(funNode))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("funNode", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 264); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funNode" ")" ); do { *((volatile int*)__null) = 264; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 265 | ||||
| 266 | ScriptIndex index = ScriptIndex(compilationState_.scriptData.length()); | |||
| 267 | if (uint32_t(index) >= TaggedScriptThingIndex::IndexLimit) { | |||
| 268 | ReportAllocationOverflow(fc_); | |||
| 269 | return nullptr; | |||
| 270 | } | |||
| 271 | if (!compilationState_.appendScriptStencilAndData(fc_)) { | |||
| 272 | return nullptr; | |||
| 273 | } | |||
| 274 | ||||
| 275 | bool isInitialStencil = compilationState_.isInitialStencil(); | |||
| 276 | ||||
| 277 | // This source extent will be further filled in during the remainder of parse. | |||
| 278 | SourceExtent extent; | |||
| 279 | extent.toStringStart = toStringStart; | |||
| 280 | ||||
| 281 | FunctionBox* funbox = alloc_.new_<FunctionBox>( | |||
| 282 | fc_, extent, compilationState_, inheritedDirectives, generatorKind, | |||
| 283 | asyncKind, isInitialStencil, explicitName, flags, index); | |||
| 284 | if (!funbox) { | |||
| 285 | ReportOutOfMemory(fc_); | |||
| 286 | return nullptr; | |||
| 287 | } | |||
| 288 | ||||
| 289 | handler_.setFunctionBox(funNode, funbox); | |||
| 290 | ||||
| 291 | return funbox; | |||
| 292 | } | |||
| 293 | ||||
| 294 | template <class ParseHandler> | |||
| 295 | FunctionBox* PerHandlerParser<ParseHandler>::newFunctionBox( | |||
| 296 | FunctionNodeType funNode, const ScriptStencil& cachedScriptData, | |||
| 297 | const ScriptStencilExtra& cachedScriptExtra) { | |||
| 298 | MOZ_ASSERT(funNode)do { static_assert( mozilla::detail::AssertionConditionType< decltype(funNode)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(funNode))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("funNode", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 298); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funNode" ")" ); do { *((volatile int*)__null) = 298; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 299 | ||||
| 300 | ScriptIndex index = ScriptIndex(compilationState_.scriptData.length()); | |||
| 301 | if (uint32_t(index) >= TaggedScriptThingIndex::IndexLimit) { | |||
| 302 | ReportAllocationOverflow(fc_); | |||
| 303 | return nullptr; | |||
| 304 | } | |||
| 305 | if (!compilationState_.appendScriptStencilAndData(fc_)) { | |||
| 306 | return nullptr; | |||
| 307 | } | |||
| 308 | ||||
| 309 | FunctionBox* funbox = alloc_.new_<FunctionBox>( | |||
| 310 | fc_, cachedScriptExtra.extent, compilationState_, | |||
| 311 | Directives(/* strict = */ false), cachedScriptExtra.generatorKind(), | |||
| 312 | cachedScriptExtra.asyncKind(), compilationState_.isInitialStencil(), | |||
| 313 | cachedScriptData.functionAtom, cachedScriptData.functionFlags, index); | |||
| 314 | if (!funbox) { | |||
| 315 | ReportOutOfMemory(fc_); | |||
| 316 | return nullptr; | |||
| 317 | } | |||
| 318 | ||||
| 319 | handler_.setFunctionBox(funNode, funbox); | |||
| 320 | funbox->initFromScriptStencilExtra(cachedScriptExtra); | |||
| 321 | ||||
| 322 | return funbox; | |||
| 323 | } | |||
| 324 | ||||
| 325 | bool ParserBase::setSourceMapInfo() { | |||
| 326 | // If support for source pragmas have been fully disabled, we can skip | |||
| 327 | // processing of all of these values. | |||
| 328 | if (!options().sourcePragmas()) { | |||
| 329 | return true; | |||
| 330 | } | |||
| 331 | ||||
| 332 | // Not all clients initialize ss. Can't update info to an object that isn't | |||
| 333 | // there. | |||
| 334 | if (!ss) { | |||
| 335 | return true; | |||
| 336 | } | |||
| 337 | ||||
| 338 | if (anyChars.hasDisplayURL()) { | |||
| 339 | if (!ss->setDisplayURL(fc_, anyChars.displayURL())) { | |||
| 340 | return false; | |||
| 341 | } | |||
| 342 | } | |||
| 343 | ||||
| 344 | if (anyChars.hasSourceMapURL()) { | |||
| 345 | MOZ_ASSERT(!ss->hasSourceMapURL())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ss->hasSourceMapURL())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!ss->hasSourceMapURL()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("!ss->hasSourceMapURL()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 345); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ss->hasSourceMapURL()" ")"); do { *((volatile int*)__null) = 345; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 346 | if (!ss->setSourceMapURL(fc_, anyChars.sourceMapURL())) { | |||
| 347 | return false; | |||
| 348 | } | |||
| 349 | } | |||
| 350 | ||||
| 351 | /* | |||
| 352 | * Source map URLs passed as a compile option (usually via a HTTP source map | |||
| 353 | * header) override any source map urls passed as comment pragmas. | |||
| 354 | */ | |||
| 355 | if (options().sourceMapURL()) { | |||
| 356 | // Warn about the replacement, but use the new one. | |||
| 357 | if (ss->hasSourceMapURL()) { | |||
| 358 | if (!warningNoOffset(JSMSG_ALREADY_HAS_PRAGMA, ss->filename(), | |||
| 359 | "//# sourceMappingURL")) { | |||
| 360 | return false; | |||
| 361 | } | |||
| 362 | } | |||
| 363 | ||||
| 364 | if (!ss->setSourceMapURL(fc_, options().sourceMapURL())) { | |||
| 365 | return false; | |||
| 366 | } | |||
| 367 | } | |||
| 368 | ||||
| 369 | return true; | |||
| 370 | } | |||
| 371 | ||||
| 372 | /* | |||
| 373 | * Parse a top-level JS script. | |||
| 374 | */ | |||
| 375 | template <class ParseHandler, typename Unit> | |||
| 376 | typename ParseHandler::ListNodeResult | |||
| 377 | GeneralParser<ParseHandler, Unit>::parse() { | |||
| 378 | MOZ_ASSERT(checkOptionsCalled_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(checkOptionsCalled_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(checkOptionsCalled_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("checkOptionsCalled_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 378); AnnotateMozCrashReason("MOZ_ASSERT" "(" "checkOptionsCalled_" ")"); do { *((volatile int*)__null) = 378; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 379 | ||||
| 380 | SourceExtent extent = SourceExtent::makeGlobalExtent( | |||
| 381 | /* len = */ 0, options().lineno, | |||
| 382 | JS::LimitedColumnNumberOneOrigin::fromUnlimited( | |||
| 383 | JS::ColumnNumberOneOrigin(options().column))); | |||
| 384 | Directives directives(options().forceStrictMode()); | |||
| 385 | GlobalSharedContext globalsc(this->fc_, ScopeKind::Global, options(), | |||
| 386 | directives, extent); | |||
| 387 | SourceParseContext globalpc(this, &globalsc, /* newDirectives = */ nullptr); | |||
| 388 | if (!globalpc.init()) { | |||
| 389 | return errorResult(); | |||
| 390 | } | |||
| 391 | ||||
| 392 | ParseContext::VarScope varScope(this); | |||
| 393 | if (!varScope.init(pc_)) { | |||
| 394 | return errorResult(); | |||
| 395 | } | |||
| 396 | ||||
| 397 | ListNodeType stmtList; | |||
| 398 | MOZ_TRY_VAR(stmtList, statementList(YieldIsName))do { auto mozTryVarTempResult_ = (statementList(YieldIsName)) ; if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0)) ) { return mozTryVarTempResult_.propagateErr(); } (stmtList) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 399 | ||||
| 400 | TokenKind tt; | |||
| 401 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 402 | return errorResult(); | |||
| 403 | } | |||
| 404 | if (tt != TokenKind::Eof) { | |||
| 405 | error(JSMSG_GARBAGE_AFTER_INPUT, "script", TokenKindToDesc(tt)); | |||
| 406 | return errorResult(); | |||
| 407 | } | |||
| 408 | ||||
| 409 | if (!CheckParseTree(this->fc_, alloc_, stmtList)) { | |||
| 410 | return errorResult(); | |||
| 411 | } | |||
| 412 | ||||
| 413 | if (foldConstants_) { | |||
| 414 | Node node = stmtList; | |||
| 415 | // Don't constant-fold inside "use asm" code, as this could create a parse | |||
| 416 | // tree that doesn't type-check as asm.js. | |||
| 417 | if (!pc_->useAsmOrInsideUseAsm()) { | |||
| 418 | if (!FoldConstants(this->fc_, this->parserAtoms(), &node, &handler_)) { | |||
| 419 | return errorResult(); | |||
| 420 | } | |||
| 421 | } | |||
| 422 | stmtList = handler_.asListNode(node); | |||
| 423 | } | |||
| 424 | ||||
| 425 | return stmtList; | |||
| 426 | } | |||
| 427 | ||||
| 428 | /* | |||
| 429 | * Strict mode forbids introducing new definitions for 'eval', 'arguments', | |||
| 430 | * 'let', 'static', 'yield', or for any strict mode reserved word. | |||
| 431 | */ | |||
| 432 | bool ParserBase::isValidStrictBinding(TaggedParserAtomIndex name) { | |||
| 433 | TokenKind tt = ReservedWordTokenKind(name); | |||
| 434 | if (tt == TokenKind::Limit) { | |||
| 435 | return name != TaggedParserAtomIndex::WellKnown::eval() && | |||
| 436 | name != TaggedParserAtomIndex::WellKnown::arguments(); | |||
| 437 | } | |||
| 438 | return tt != TokenKind::Let && tt != TokenKind::Static && | |||
| 439 | tt != TokenKind::Yield && !TokenKindIsStrictReservedWord(tt); | |||
| 440 | } | |||
| 441 | ||||
| 442 | /* | |||
| 443 | * Returns true if all parameter names are valid strict mode binding names and | |||
| 444 | * no duplicate parameter names are present. | |||
| 445 | */ | |||
| 446 | bool ParserBase::hasValidSimpleStrictParameterNames() { | |||
| 447 | MOZ_ASSERT(pc_->isFunctionBox() &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isFunctionBox() && pc_->functionBox ()->hasSimpleParameterList())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isFunctionBox() && pc_->functionBox()->hasSimpleParameterList()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isFunctionBox() && pc_->functionBox()->hasSimpleParameterList()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 448); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isFunctionBox() && pc_->functionBox()->hasSimpleParameterList()" ")"); do { *((volatile int*)__null) = 448; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 448 | pc_->functionBox()->hasSimpleParameterList())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isFunctionBox() && pc_->functionBox ()->hasSimpleParameterList())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isFunctionBox() && pc_->functionBox()->hasSimpleParameterList()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isFunctionBox() && pc_->functionBox()->hasSimpleParameterList()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 448); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isFunctionBox() && pc_->functionBox()->hasSimpleParameterList()" ")"); do { *((volatile int*)__null) = 448; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 449 | ||||
| 450 | if (pc_->functionBox()->hasDuplicateParameters) { | |||
| 451 | return false; | |||
| 452 | } | |||
| 453 | ||||
| 454 | for (auto name : pc_->positionalFormalParameterNames()) { | |||
| 455 | MOZ_ASSERT(name)do { static_assert( mozilla::detail::AssertionConditionType< decltype(name)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(name))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("name", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 455); AnnotateMozCrashReason("MOZ_ASSERT" "(" "name" ")"); do { *((volatile int*)__null) = 455; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); | |||
| 456 | if (!isValidStrictBinding(name)) { | |||
| 457 | return false; | |||
| 458 | } | |||
| 459 | } | |||
| 460 | return true; | |||
| 461 | } | |||
| 462 | ||||
| 463 | template <class ParseHandler, typename Unit> | |||
| 464 | void GeneralParser<ParseHandler, Unit>::reportMissingClosing( | |||
| 465 | unsigned errorNumber, unsigned noteNumber, uint32_t openedPos) { | |||
| 466 | auto notes = MakeUnique<JSErrorNotes>(); | |||
| 467 | if (!notes) { | |||
| 468 | ReportOutOfMemory(this->fc_); | |||
| 469 | return; | |||
| 470 | } | |||
| 471 | ||||
| 472 | uint32_t line; | |||
| 473 | JS::LimitedColumnNumberOneOrigin column; | |||
| 474 | tokenStream.computeLineAndColumn(openedPos, &line, &column); | |||
| 475 | ||||
| 476 | const size_t MaxWidth = sizeof("4294967295"); | |||
| 477 | char columnNumber[MaxWidth]; | |||
| 478 | SprintfLiteral(columnNumber, "%" PRIu32"u", column.oneOriginValue()); | |||
| 479 | char lineNumber[MaxWidth]; | |||
| 480 | SprintfLiteral(lineNumber, "%" PRIu32"u", line); | |||
| 481 | ||||
| 482 | if (!notes->addNoteASCII(this->fc_, getFilename().c_str(), 0, line, | |||
| 483 | JS::ColumnNumberOneOrigin(column), GetErrorMessage, | |||
| 484 | nullptr, noteNumber, lineNumber, columnNumber)) { | |||
| 485 | return; | |||
| 486 | } | |||
| 487 | ||||
| 488 | errorWithNotes(std::move(notes), errorNumber); | |||
| 489 | } | |||
| 490 | ||||
| 491 | template <class ParseHandler, typename Unit> | |||
| 492 | void GeneralParser<ParseHandler, Unit>::reportRedeclarationHelper( | |||
| 493 | TaggedParserAtomIndex& name, DeclarationKind& prevKind, TokenPos& pos, | |||
| 494 | uint32_t& prevPos, const unsigned& errorNumber, | |||
| 495 | const unsigned& noteErrorNumber) { | |||
| 496 | UniqueChars bytes = this->parserAtoms().toPrintableString(name); | |||
| 497 | if (!bytes) { | |||
| 498 | ReportOutOfMemory(this->fc_); | |||
| 499 | return; | |||
| 500 | } | |||
| 501 | ||||
| 502 | if (prevPos == DeclaredNameInfo::npos) { | |||
| 503 | errorAt(pos.begin, errorNumber, DeclarationKindString(prevKind), | |||
| 504 | bytes.get()); | |||
| 505 | return; | |||
| 506 | } | |||
| 507 | ||||
| 508 | auto notes = MakeUnique<JSErrorNotes>(); | |||
| 509 | if (!notes) { | |||
| 510 | ReportOutOfMemory(this->fc_); | |||
| 511 | return; | |||
| 512 | } | |||
| 513 | ||||
| 514 | uint32_t line; | |||
| 515 | JS::LimitedColumnNumberOneOrigin column; | |||
| 516 | tokenStream.computeLineAndColumn(prevPos, &line, &column); | |||
| 517 | ||||
| 518 | const size_t MaxWidth = sizeof("4294967295"); | |||
| 519 | char columnNumber[MaxWidth]; | |||
| 520 | SprintfLiteral(columnNumber, "%" PRIu32"u", column.oneOriginValue()); | |||
| 521 | char lineNumber[MaxWidth]; | |||
| 522 | SprintfLiteral(lineNumber, "%" PRIu32"u", line); | |||
| 523 | ||||
| 524 | if (!notes->addNoteASCII(this->fc_, getFilename().c_str(), 0, line, | |||
| 525 | JS::ColumnNumberOneOrigin(column), GetErrorMessage, | |||
| 526 | nullptr, noteErrorNumber, lineNumber, | |||
| 527 | columnNumber)) { | |||
| 528 | return; | |||
| 529 | } | |||
| 530 | ||||
| 531 | errorWithNotesAt(std::move(notes), pos.begin, errorNumber, | |||
| 532 | DeclarationKindString(prevKind), bytes.get()); | |||
| 533 | } | |||
| 534 | ||||
| 535 | template <class ParseHandler, typename Unit> | |||
| 536 | void GeneralParser<ParseHandler, Unit>::reportRedeclaration( | |||
| 537 | TaggedParserAtomIndex name, DeclarationKind prevKind, TokenPos pos, | |||
| 538 | uint32_t prevPos) { | |||
| 539 | reportRedeclarationHelper(name, prevKind, pos, prevPos, JSMSG_REDECLARED_VAR, | |||
| 540 | JSMSG_PREV_DECLARATION); | |||
| 541 | } | |||
| 542 | ||||
| 543 | template <class ParseHandler, typename Unit> | |||
| 544 | void GeneralParser<ParseHandler, Unit>::reportMismatchedPlacement( | |||
| 545 | TaggedParserAtomIndex name, DeclarationKind prevKind, TokenPos pos, | |||
| 546 | uint32_t prevPos) { | |||
| 547 | reportRedeclarationHelper(name, prevKind, pos, prevPos, | |||
| 548 | JSMSG_MISMATCHED_PLACEMENT, JSMSG_PREV_DECLARATION); | |||
| 549 | } | |||
| 550 | ||||
| 551 | // notePositionalFormalParameter is called for both the arguments of a regular | |||
| 552 | // function definition and the arguments specified by the Function | |||
| 553 | // constructor. | |||
| 554 | // | |||
| 555 | // The 'disallowDuplicateParams' bool indicates whether the use of another | |||
| 556 | // feature (destructuring or default arguments) disables duplicate arguments. | |||
| 557 | // (ECMA-262 requires us to support duplicate parameter names, but, for newer | |||
| 558 | // features, we consider the code to have "opted in" to higher standards and | |||
| 559 | // forbid duplicates.) | |||
| 560 | template <class ParseHandler, typename Unit> | |||
| 561 | bool GeneralParser<ParseHandler, Unit>::notePositionalFormalParameter( | |||
| 562 | FunctionNodeType funNode, TaggedParserAtomIndex name, uint32_t beginPos, | |||
| 563 | bool disallowDuplicateParams, bool* duplicatedParam) { | |||
| 564 | if (AddDeclaredNamePtr p = | |||
| 565 | pc_->functionScope().lookupDeclaredNameForAdd(name)) { | |||
| 566 | if (disallowDuplicateParams) { | |||
| 567 | error(JSMSG_BAD_DUP_ARGS); | |||
| 568 | return false; | |||
| 569 | } | |||
| 570 | ||||
| 571 | // Strict-mode disallows duplicate args. We may not know whether we are | |||
| 572 | // in strict mode or not (since the function body hasn't been parsed). | |||
| 573 | // In such cases, report will queue up the potential error and return | |||
| 574 | // 'true'. | |||
| 575 | if (pc_->sc()->strict()) { | |||
| 576 | UniqueChars bytes = this->parserAtoms().toPrintableString(name); | |||
| 577 | if (!bytes) { | |||
| 578 | ReportOutOfMemory(this->fc_); | |||
| 579 | return false; | |||
| 580 | } | |||
| 581 | if (!strictModeError(JSMSG_DUPLICATE_FORMAL, bytes.get())) { | |||
| 582 | return false; | |||
| 583 | } | |||
| 584 | } | |||
| 585 | ||||
| 586 | *duplicatedParam = true; | |||
| 587 | } else { | |||
| 588 | DeclarationKind kind = DeclarationKind::PositionalFormalParameter; | |||
| 589 | if (!pc_->functionScope().addDeclaredName(pc_, p, name, kind, beginPos)) { | |||
| 590 | return false; | |||
| 591 | } | |||
| 592 | } | |||
| 593 | ||||
| 594 | if (!pc_->positionalFormalParameterNames().append( | |||
| 595 | TrivialTaggedParserAtomIndex::from(name))) { | |||
| 596 | ReportOutOfMemory(this->fc_); | |||
| 597 | return false; | |||
| 598 | } | |||
| 599 | ||||
| 600 | NameNodeType paramNode; | |||
| 601 | MOZ_TRY_VAR_OR_RETURN(paramNode, newName(name), false)do { auto parserTryVarTempResult_ = (newName(name)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (paramNode) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 602 | ||||
| 603 | handler_.addFunctionFormalParameter(funNode, paramNode); | |||
| 604 | return true; | |||
| 605 | } | |||
| 606 | ||||
| 607 | template <class ParseHandler> | |||
| 608 | bool PerHandlerParser<ParseHandler>::noteDestructuredPositionalFormalParameter( | |||
| 609 | FunctionNodeType funNode, Node destruct) { | |||
| 610 | // Append an empty name to the positional formals vector to keep track of | |||
| 611 | // argument slots when making FunctionScope::ParserData. | |||
| 612 | if (!pc_->positionalFormalParameterNames().append( | |||
| 613 | TrivialTaggedParserAtomIndex::null())) { | |||
| 614 | ReportOutOfMemory(fc_); | |||
| 615 | return false; | |||
| 616 | } | |||
| 617 | ||||
| 618 | handler_.addFunctionFormalParameter(funNode, destruct); | |||
| 619 | return true; | |||
| 620 | } | |||
| 621 | ||||
| 622 | template <class ParseHandler, typename Unit> | |||
| 623 | bool GeneralParser<ParseHandler, Unit>::noteDeclaredName( | |||
| 624 | TaggedParserAtomIndex name, DeclarationKind kind, TokenPos pos, | |||
| 625 | ClosedOver isClosedOver) { | |||
| 626 | // The asm.js validator does all its own symbol-table management so, as an | |||
| 627 | // optimization, avoid doing any work here. | |||
| 628 | if (pc_->useAsmOrInsideUseAsm()) { | |||
| 629 | return true; | |||
| 630 | } | |||
| 631 | ||||
| 632 | switch (kind) { | |||
| 633 | case DeclarationKind::Var: | |||
| 634 | case DeclarationKind::BodyLevelFunction: { | |||
| 635 | Maybe<DeclarationKind> redeclaredKind; | |||
| 636 | uint32_t prevPos; | |||
| 637 | if (!pc_->tryDeclareVar(name, this, kind, pos.begin, &redeclaredKind, | |||
| 638 | &prevPos)) { | |||
| 639 | return false; | |||
| 640 | } | |||
| 641 | ||||
| 642 | if (redeclaredKind) { | |||
| 643 | reportRedeclaration(name, *redeclaredKind, pos, prevPos); | |||
| 644 | return false; | |||
| 645 | } | |||
| 646 | ||||
| 647 | break; | |||
| 648 | } | |||
| 649 | ||||
| 650 | case DeclarationKind::ModuleBodyLevelFunction: { | |||
| 651 | MOZ_ASSERT(pc_->atModuleLevel())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->atModuleLevel())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->atModuleLevel()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->atModuleLevel()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 651); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->atModuleLevel()" ")"); do { *((volatile int*)__null) = 651; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 652 | ||||
| 653 | AddDeclaredNamePtr p = pc_->varScope().lookupDeclaredNameForAdd(name); | |||
| 654 | if (p) { | |||
| 655 | reportRedeclaration(name, p->value()->kind(), pos, p->value()->pos()); | |||
| 656 | return false; | |||
| 657 | } | |||
| 658 | ||||
| 659 | if (!pc_->varScope().addDeclaredName(pc_, p, name, kind, pos.begin, | |||
| 660 | isClosedOver)) { | |||
| 661 | return false; | |||
| 662 | } | |||
| 663 | ||||
| 664 | // Body-level functions in modules are always closed over. | |||
| 665 | pc_->varScope().lookupDeclaredName(name)->value()->setClosedOver(); | |||
| 666 | ||||
| 667 | break; | |||
| 668 | } | |||
| 669 | ||||
| 670 | case DeclarationKind::FormalParameter: { | |||
| 671 | // It is an early error if any non-positional formal parameter name | |||
| 672 | // (e.g., destructuring formal parameter) is duplicated. | |||
| 673 | ||||
| 674 | AddDeclaredNamePtr p = | |||
| 675 | pc_->functionScope().lookupDeclaredNameForAdd(name); | |||
| 676 | if (p) { | |||
| 677 | error(JSMSG_BAD_DUP_ARGS); | |||
| 678 | return false; | |||
| 679 | } | |||
| 680 | ||||
| 681 | if (!pc_->functionScope().addDeclaredName(pc_, p, name, kind, pos.begin, | |||
| 682 | isClosedOver)) { | |||
| 683 | return false; | |||
| 684 | } | |||
| 685 | ||||
| 686 | break; | |||
| 687 | } | |||
| 688 | ||||
| 689 | case DeclarationKind::LexicalFunction: | |||
| 690 | case DeclarationKind::PrivateName: | |||
| 691 | case DeclarationKind::Synthetic: | |||
| 692 | case DeclarationKind::PrivateMethod: { | |||
| 693 | ParseContext::Scope* scope = pc_->innermostScope(); | |||
| 694 | AddDeclaredNamePtr p = scope->lookupDeclaredNameForAdd(name); | |||
| 695 | if (p) { | |||
| 696 | reportRedeclaration(name, p->value()->kind(), pos, p->value()->pos()); | |||
| 697 | return false; | |||
| 698 | } | |||
| 699 | ||||
| 700 | if (!scope->addDeclaredName(pc_, p, name, kind, pos.begin, | |||
| 701 | isClosedOver)) { | |||
| 702 | return false; | |||
| 703 | } | |||
| 704 | ||||
| 705 | break; | |||
| 706 | } | |||
| 707 | ||||
| 708 | case DeclarationKind::SloppyLexicalFunction: { | |||
| 709 | // Functions in block have complex allowances in sloppy mode for being | |||
| 710 | // labelled that other lexical declarations do not have. Those checks | |||
| 711 | // are done in functionStmt. | |||
| 712 | ||||
| 713 | ParseContext::Scope* scope = pc_->innermostScope(); | |||
| 714 | if (AddDeclaredNamePtr p = scope->lookupDeclaredNameForAdd(name)) { | |||
| 715 | // It is usually an early error if there is another declaration | |||
| 716 | // with the same name in the same scope. | |||
| 717 | // | |||
| 718 | // Sloppy lexical functions may redeclare other sloppy lexical | |||
| 719 | // functions for web compatibility reasons. | |||
| 720 | if (p->value()->kind() != DeclarationKind::SloppyLexicalFunction) { | |||
| 721 | reportRedeclaration(name, p->value()->kind(), pos, p->value()->pos()); | |||
| 722 | return false; | |||
| 723 | } | |||
| 724 | } else { | |||
| 725 | if (!scope->addDeclaredName(pc_, p, name, kind, pos.begin, | |||
| 726 | isClosedOver)) { | |||
| 727 | return false; | |||
| 728 | } | |||
| 729 | } | |||
| 730 | ||||
| 731 | break; | |||
| 732 | } | |||
| 733 | ||||
| 734 | case DeclarationKind::Let: | |||
| 735 | case DeclarationKind::Const: | |||
| 736 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 737 | case DeclarationKind::Using: | |||
| 738 | case DeclarationKind::AwaitUsing: | |||
| 739 | #endif | |||
| 740 | case DeclarationKind::Class: | |||
| 741 | // The BoundNames of LexicalDeclaration and ForDeclaration must not | |||
| 742 | // contain 'let'. (CatchParameter is the only lexical binding form | |||
| 743 | // without this restriction.) | |||
| 744 | if (name == TaggedParserAtomIndex::WellKnown::let()) { | |||
| 745 | errorAt(pos.begin, JSMSG_LEXICAL_DECL_DEFINES_LET); | |||
| 746 | return false; | |||
| 747 | } | |||
| 748 | ||||
| 749 | // For body-level lexically declared names in a function, it is an | |||
| 750 | // early error if there is a formal parameter of the same name. This | |||
| 751 | // needs a special check if there is an extra var scope due to | |||
| 752 | // parameter expressions. | |||
| 753 | if (pc_->isFunctionExtraBodyVarScopeInnermost()) { | |||
| 754 | DeclaredNamePtr p = pc_->functionScope().lookupDeclaredName(name); | |||
| 755 | if (p && DeclarationKindIsParameter(p->value()->kind())) { | |||
| 756 | reportRedeclaration(name, p->value()->kind(), pos, p->value()->pos()); | |||
| 757 | return false; | |||
| 758 | } | |||
| 759 | } | |||
| 760 | ||||
| 761 | [[fallthrough]]; | |||
| 762 | ||||
| 763 | case DeclarationKind::Import: | |||
| 764 | // Module code is always strict, so 'let' is always a keyword and never a | |||
| 765 | // name. | |||
| 766 | MOZ_ASSERT(name != TaggedParserAtomIndex::WellKnown::let())do { static_assert( mozilla::detail::AssertionConditionType< decltype(name != TaggedParserAtomIndex::WellKnown::let())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(name != TaggedParserAtomIndex::WellKnown::let()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("name != TaggedParserAtomIndex::WellKnown::let()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 766); AnnotateMozCrashReason("MOZ_ASSERT" "(" "name != TaggedParserAtomIndex::WellKnown::let()" ")"); do { *((volatile int*)__null) = 766; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 767 | [[fallthrough]]; | |||
| 768 | ||||
| 769 | case DeclarationKind::SimpleCatchParameter: | |||
| 770 | case DeclarationKind::CatchParameter: { | |||
| 771 | ParseContext::Scope* scope = pc_->innermostScope(); | |||
| 772 | ||||
| 773 | // It is an early error if there is another declaration with the same | |||
| 774 | // name in the same scope. | |||
| 775 | AddDeclaredNamePtr p = scope->lookupDeclaredNameForAdd(name); | |||
| 776 | if (p) { | |||
| 777 | reportRedeclaration(name, p->value()->kind(), pos, p->value()->pos()); | |||
| 778 | return false; | |||
| 779 | } | |||
| 780 | ||||
| 781 | if (!scope->addDeclaredName(pc_, p, name, kind, pos.begin, | |||
| 782 | isClosedOver)) { | |||
| 783 | return false; | |||
| 784 | } | |||
| 785 | ||||
| 786 | break; | |||
| 787 | } | |||
| 788 | ||||
| 789 | case DeclarationKind::CoverArrowParameter: | |||
| 790 | // CoverArrowParameter is only used as a placeholder declaration kind. | |||
| 791 | break; | |||
| 792 | ||||
| 793 | case DeclarationKind::PositionalFormalParameter: | |||
| 794 | MOZ_CRASH(do { do { } while (false); MOZ_ReportCrash("" "Positional formal parameter names should use " "notePositionalFormalParameter", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 796); AnnotateMozCrashReason("MOZ_CRASH(" "Positional formal parameter names should use " "notePositionalFormalParameter" ")"); do { *((volatile int*) __null) = 796; __attribute__((nomerge)) ::abort(); } while (false ); } while (false) | |||
| 795 | "Positional formal parameter names should use "do { do { } while (false); MOZ_ReportCrash("" "Positional formal parameter names should use " "notePositionalFormalParameter", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 796); AnnotateMozCrashReason("MOZ_CRASH(" "Positional formal parameter names should use " "notePositionalFormalParameter" ")"); do { *((volatile int*) __null) = 796; __attribute__((nomerge)) ::abort(); } while (false ); } while (false) | |||
| 796 | "notePositionalFormalParameter")do { do { } while (false); MOZ_ReportCrash("" "Positional formal parameter names should use " "notePositionalFormalParameter", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 796); AnnotateMozCrashReason("MOZ_CRASH(" "Positional formal parameter names should use " "notePositionalFormalParameter" ")"); do { *((volatile int*) __null) = 796; __attribute__((nomerge)) ::abort(); } while (false ); } while (false); | |||
| 797 | break; | |||
| 798 | ||||
| 799 | case DeclarationKind::VarForAnnexBLexicalFunction: | |||
| 800 | MOZ_CRASH(do { do { } while (false); MOZ_ReportCrash("" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 803); AnnotateMozCrashReason("MOZ_CRASH(" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" ")"); do { *((volatile int*)__null) = 803; __attribute__((nomerge )) ::abort(); } while (false); } while (false) | |||
| 801 | "Synthesized Annex B vars should go through "do { do { } while (false); MOZ_ReportCrash("" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 803); AnnotateMozCrashReason("MOZ_CRASH(" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" ")"); do { *((volatile int*)__null) = 803; __attribute__((nomerge )) ::abort(); } while (false); } while (false) | |||
| 802 | "addPossibleAnnexBFunctionBox, and "do { do { } while (false); MOZ_ReportCrash("" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 803); AnnotateMozCrashReason("MOZ_CRASH(" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" ")"); do { *((volatile int*)__null) = 803; __attribute__((nomerge )) ::abort(); } while (false); } while (false) | |||
| 803 | "propagateAndMarkAnnexBFunctionBoxes")do { do { } while (false); MOZ_ReportCrash("" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 803); AnnotateMozCrashReason("MOZ_CRASH(" "Synthesized Annex B vars should go through " "addPossibleAnnexBFunctionBox, and " "propagateAndMarkAnnexBFunctionBoxes" ")"); do { *((volatile int*)__null) = 803; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 804 | break; | |||
| 805 | } | |||
| 806 | ||||
| 807 | return true; | |||
| 808 | } | |||
| 809 | ||||
| 810 | template <class ParseHandler, typename Unit> | |||
| 811 | bool GeneralParser<ParseHandler, Unit>::noteDeclaredPrivateName( | |||
| 812 | Node nameNode, TaggedParserAtomIndex name, PropertyType propType, | |||
| 813 | FieldPlacement placement, TokenPos pos) { | |||
| 814 | ParseContext::Scope* scope = pc_->innermostScope(); | |||
| 815 | AddDeclaredNamePtr p = scope->lookupDeclaredNameForAdd(name); | |||
| 816 | ||||
| 817 | DeclarationKind declKind = DeclarationKind::PrivateName; | |||
| 818 | ||||
| 819 | // Our strategy for enabling debugger functionality is to mark names as closed | |||
| 820 | // over, even if they don't necessarily need to be, to ensure that they are | |||
| 821 | // included in the environment object. This allows us to easily look them up | |||
| 822 | // by name when needed, even if there is no corresponding property on an | |||
| 823 | // object, as is the case with getter, setters and private methods. | |||
| 824 | ClosedOver closedOver = ClosedOver::Yes; | |||
| 825 | PrivateNameKind kind; | |||
| 826 | switch (propType) { | |||
| 827 | case PropertyType::Field: | |||
| 828 | kind = PrivateNameKind::Field; | |||
| 829 | closedOver = ClosedOver::No; | |||
| 830 | break; | |||
| 831 | case PropertyType::FieldWithAccessor: | |||
| 832 | // In this case, we create a new private field for the underlying storage, | |||
| 833 | // and use the current name for the getter and setter. | |||
| 834 | kind = PrivateNameKind::GetterSetter; | |||
| 835 | break; | |||
| 836 | case PropertyType::Method: | |||
| 837 | case PropertyType::GeneratorMethod: | |||
| 838 | case PropertyType::AsyncMethod: | |||
| 839 | case PropertyType::AsyncGeneratorMethod: | |||
| 840 | if (placement == FieldPlacement::Instance) { | |||
| 841 | // Optimized private method. Non-optimized paths still get | |||
| 842 | // DeclarationKind::Synthetic. | |||
| 843 | declKind = DeclarationKind::PrivateMethod; | |||
| 844 | } | |||
| 845 | kind = PrivateNameKind::Method; | |||
| 846 | break; | |||
| 847 | case PropertyType::Getter: | |||
| 848 | kind = PrivateNameKind::Getter; | |||
| 849 | break; | |||
| 850 | case PropertyType::Setter: | |||
| 851 | kind = PrivateNameKind::Setter; | |||
| 852 | break; | |||
| 853 | default: | |||
| 854 | MOZ_CRASH("Invalid Property Type for noteDeclarePrivateName")do { do { } while (false); MOZ_ReportCrash("" "Invalid Property Type for noteDeclarePrivateName" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 854); AnnotateMozCrashReason("MOZ_CRASH(" "Invalid Property Type for noteDeclarePrivateName" ")"); do { *((volatile int*)__null) = 854; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 855 | } | |||
| 856 | ||||
| 857 | if (p) { | |||
| 858 | PrivateNameKind prevKind = p->value()->privateNameKind(); | |||
| 859 | if ((prevKind == PrivateNameKind::Getter && | |||
| 860 | kind == PrivateNameKind::Setter) || | |||
| 861 | (prevKind == PrivateNameKind::Setter && | |||
| 862 | kind == PrivateNameKind::Getter)) { | |||
| 863 | // Private methods demands that | |||
| 864 | // | |||
| 865 | // class A { | |||
| 866 | // static set #x(_) {} | |||
| 867 | // get #x() { } | |||
| 868 | // } | |||
| 869 | // | |||
| 870 | // Report a SyntaxError. | |||
| 871 | if (placement == p->value()->placement()) { | |||
| 872 | p->value()->setPrivateNameKind(PrivateNameKind::GetterSetter); | |||
| 873 | handler_.setPrivateNameKind(nameNode, PrivateNameKind::GetterSetter); | |||
| 874 | return true; | |||
| 875 | } | |||
| 876 | } | |||
| 877 | ||||
| 878 | reportMismatchedPlacement(name, p->value()->kind(), pos, p->value()->pos()); | |||
| 879 | return false; | |||
| 880 | } | |||
| 881 | ||||
| 882 | if (!scope->addDeclaredName(pc_, p, name, declKind, pos.begin, closedOver)) { | |||
| 883 | return false; | |||
| 884 | } | |||
| 885 | ||||
| 886 | DeclaredNamePtr declared = scope->lookupDeclaredName(name); | |||
| 887 | declared->value()->setPrivateNameKind(kind); | |||
| 888 | declared->value()->setFieldPlacement(placement); | |||
| 889 | handler_.setPrivateNameKind(nameNode, kind); | |||
| 890 | ||||
| 891 | return true; | |||
| 892 | } | |||
| 893 | ||||
| 894 | bool ParserBase::noteUsedNameInternal(TaggedParserAtomIndex name, | |||
| 895 | NameVisibility visibility, | |||
| 896 | mozilla::Maybe<TokenPos> tokenPosition) { | |||
| 897 | // The asm.js validator does all its own symbol-table management so, as an | |||
| 898 | // optimization, avoid doing any work here. | |||
| 899 | if (pc_->useAsmOrInsideUseAsm()) { | |||
| 900 | return true; | |||
| 901 | } | |||
| 902 | ||||
| 903 | // Global bindings are properties and not actual bindings; we don't need | |||
| 904 | // to know if they are closed over. So no need to track used name at the | |||
| 905 | // global scope. It is not incorrect to track them, this is an | |||
| 906 | // optimization. | |||
| 907 | // | |||
| 908 | // Exceptions: | |||
| 909 | // (a) Track private name references, as the used names tracker is used to | |||
| 910 | // provide early errors for undeclared private name references | |||
| 911 | // (b) If the script has extra bindings, track all references to detect | |||
| 912 | // references to extra bindings | |||
| 913 | ParseContext::Scope* scope = pc_->innermostScope(); | |||
| 914 | if (pc_->sc()->isGlobalContext() && scope == &pc_->varScope() && | |||
| 915 | visibility == NameVisibility::Public && | |||
| 916 | !this->compilationState_.input.hasExtraBindings()) { | |||
| 917 | return true; | |||
| 918 | } | |||
| 919 | ||||
| 920 | return usedNames_.noteUse(fc_, name, visibility, pc_->scriptId(), scope->id(), | |||
| 921 | tokenPosition); | |||
| 922 | } | |||
| 923 | ||||
| 924 | template <class ParseHandler> | |||
| 925 | bool PerHandlerParser<ParseHandler>:: | |||
| 926 | propagateFreeNamesAndMarkClosedOverBindings(ParseContext::Scope& scope) { | |||
| 927 | // Now that we have all the declared names in the scope, check which | |||
| 928 | // functions should exhibit Annex B semantics. | |||
| 929 | if (!scope.propagateAndMarkAnnexBFunctionBoxes(pc_, this)) { | |||
| 930 | return false; | |||
| 931 | } | |||
| 932 | ||||
| 933 | if (handler_.reuseClosedOverBindings()) { | |||
| 934 | MOZ_ASSERT(pc_->isOutermostOfCurrentCompile())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isOutermostOfCurrentCompile())>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(pc_->isOutermostOfCurrentCompile()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isOutermostOfCurrentCompile()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 934); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isOutermostOfCurrentCompile()" ")"); do { *((volatile int*)__null) = 934; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 935 | ||||
| 936 | // Closed over bindings for all scopes are stored in a contiguous array, in | |||
| 937 | // the same order as the order in which scopes are visited, and seprated by | |||
| 938 | // TaggedParserAtomIndex::null(). | |||
| 939 | uint32_t slotCount = scope.declaredCount(); | |||
| 940 | while (auto parserAtom = handler_.nextLazyClosedOverBinding()) { | |||
| 941 | scope.lookupDeclaredName(parserAtom)->value()->setClosedOver(); | |||
| 942 | MOZ_ASSERT(slotCount > 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(slotCount > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(slotCount > 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("slotCount > 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 942); AnnotateMozCrashReason("MOZ_ASSERT" "(" "slotCount > 0" ")"); do { *((volatile int*)__null) = 942; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 943 | slotCount--; | |||
| 944 | } | |||
| 945 | ||||
| 946 | if (pc_->isGeneratorOrAsync()) { | |||
| 947 | scope.setOwnStackSlotCount(slotCount); | |||
| 948 | } | |||
| 949 | return true; | |||
| 950 | } | |||
| 951 | ||||
| 952 | constexpr bool isSyntaxParser = | |||
| 953 | std::is_same_v<ParseHandler, SyntaxParseHandler>; | |||
| 954 | uint32_t scriptId = pc_->scriptId(); | |||
| 955 | uint32_t scopeId = scope.id(); | |||
| 956 | ||||
| 957 | uint32_t slotCount = 0; | |||
| 958 | for (BindingIter bi = scope.bindings(pc_); bi; bi++) { | |||
| 959 | bool closedOver = false; | |||
| 960 | if (UsedNamePtr p = usedNames_.lookup(bi.name())) { | |||
| 961 | p->value().noteBoundInScope(scriptId, scopeId, &closedOver); | |||
| 962 | if (closedOver) { | |||
| 963 | bi.setClosedOver(); | |||
| 964 | ||||
| 965 | if constexpr (isSyntaxParser) { | |||
| 966 | if (!pc_->closedOverBindingsForLazy().append( | |||
| 967 | TrivialTaggedParserAtomIndex::from(bi.name()))) { | |||
| 968 | ReportOutOfMemory(fc_); | |||
| 969 | return false; | |||
| 970 | } | |||
| 971 | } | |||
| 972 | } | |||
| 973 | } | |||
| 974 | ||||
| 975 | if constexpr (!isSyntaxParser) { | |||
| 976 | if (!closedOver) { | |||
| 977 | slotCount++; | |||
| 978 | } | |||
| 979 | } | |||
| 980 | } | |||
| 981 | if constexpr (!isSyntaxParser) { | |||
| 982 | if (pc_->isGeneratorOrAsync()) { | |||
| 983 | scope.setOwnStackSlotCount(slotCount); | |||
| 984 | } | |||
| 985 | } | |||
| 986 | ||||
| 987 | // Append a nullptr to denote end-of-scope. | |||
| 988 | if constexpr (isSyntaxParser) { | |||
| 989 | if (!pc_->closedOverBindingsForLazy().append( | |||
| 990 | TrivialTaggedParserAtomIndex::null())) { | |||
| 991 | ReportOutOfMemory(fc_); | |||
| 992 | return false; | |||
| 993 | } | |||
| 994 | } | |||
| 995 | ||||
| 996 | return true; | |||
| 997 | } | |||
| 998 | ||||
| 999 | template <typename Unit> | |||
| 1000 | bool Parser<FullParseHandler, Unit>::checkStatementsEOF() { | |||
| 1001 | // This is designed to be paired with parsing a statement list at the top | |||
| 1002 | // level. | |||
| 1003 | // | |||
| 1004 | // The statementList() call breaks on TokenKind::RightCurly, so make sure | |||
| 1005 | // we've reached EOF here. | |||
| 1006 | TokenKind tt; | |||
| 1007 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 1008 | return false; | |||
| 1009 | } | |||
| 1010 | if (tt != TokenKind::Eof) { | |||
| 1011 | error(JSMSG_UNEXPECTED_TOKEN, "expression", TokenKindToDesc(tt)); | |||
| 1012 | return false; | |||
| 1013 | } | |||
| 1014 | return true; | |||
| 1015 | } | |||
| 1016 | ||||
| 1017 | template <typename ScopeT> | |||
| 1018 | typename ScopeT::ParserData* NewEmptyBindingData(FrontendContext* fc, | |||
| 1019 | LifoAlloc& alloc, | |||
| 1020 | uint32_t numBindings) { | |||
| 1021 | using Data = typename ScopeT::ParserData; | |||
| 1022 | size_t allocSize = SizeOfScopeData<Data>(numBindings); | |||
| 1023 | auto* bindings = alloc.newWithSize<Data>(allocSize, numBindings); | |||
| 1024 | if (!bindings) { | |||
| 1025 | ReportOutOfMemory(fc); | |||
| 1026 | } | |||
| 1027 | return bindings; | |||
| 1028 | } | |||
| 1029 | ||||
| 1030 | GlobalScope::ParserData* NewEmptyGlobalScopeData(FrontendContext* fc, | |||
| 1031 | LifoAlloc& alloc, | |||
| 1032 | uint32_t numBindings) { | |||
| 1033 | return NewEmptyBindingData<GlobalScope>(fc, alloc, numBindings); | |||
| 1034 | } | |||
| 1035 | ||||
| 1036 | LexicalScope::ParserData* NewEmptyLexicalScopeData(FrontendContext* fc, | |||
| 1037 | LifoAlloc& alloc, | |||
| 1038 | uint32_t numBindings) { | |||
| 1039 | return NewEmptyBindingData<LexicalScope>(fc, alloc, numBindings); | |||
| 1040 | } | |||
| 1041 | ||||
| 1042 | FunctionScope::ParserData* NewEmptyFunctionScopeData(FrontendContext* fc, | |||
| 1043 | LifoAlloc& alloc, | |||
| 1044 | uint32_t numBindings) { | |||
| 1045 | return NewEmptyBindingData<FunctionScope>(fc, alloc, numBindings); | |||
| 1046 | } | |||
| 1047 | ||||
| 1048 | namespace detail { | |||
| 1049 | ||||
| 1050 | template <class SlotInfo> | |||
| 1051 | static MOZ_ALWAYS_INLINEinline ParserBindingName* InitializeIndexedBindings( | |||
| 1052 | SlotInfo& slotInfo, ParserBindingName* start, ParserBindingName* cursor) { | |||
| 1053 | return cursor; | |||
| 1054 | } | |||
| 1055 | ||||
| 1056 | template <class SlotInfo, typename UnsignedInteger, typename... Step> | |||
| 1057 | static MOZ_ALWAYS_INLINEinline ParserBindingName* InitializeIndexedBindings( | |||
| 1058 | SlotInfo& slotInfo, ParserBindingName* start, ParserBindingName* cursor, | |||
| 1059 | UnsignedInteger SlotInfo::*field, const ParserBindingNameVector& bindings, | |||
| 1060 | Step&&... step) { | |||
| 1061 | slotInfo.*field = | |||
| 1062 | AssertedCast<UnsignedInteger>(PointerRangeSize(start, cursor)); | |||
| 1063 | ||||
| 1064 | ParserBindingName* newCursor = | |||
| 1065 | std::uninitialized_copy(bindings.begin(), bindings.end(), cursor); | |||
| 1066 | ||||
| 1067 | return InitializeIndexedBindings(slotInfo, start, newCursor, | |||
| 1068 | std::forward<Step>(step)...); | |||
| 1069 | } | |||
| 1070 | ||||
| 1071 | } // namespace detail | |||
| 1072 | ||||
| 1073 | // Initialize the trailing name bindings of |data|, then set |data->length| to | |||
| 1074 | // the count of bindings added (which must equal |count|). | |||
| 1075 | // | |||
| 1076 | // First, |firstBindings| are added to the trailing names. Then any | |||
| 1077 | // "steps" present are performed first to last. Each step is 1) a pointer to a | |||
| 1078 | // member of |data| to be set to the current number of bindings added, and 2) a | |||
| 1079 | // vector of |ParserBindingName|s to then copy into |data->trailingNames|. | |||
| 1080 | // (Thus each |data| member field indicates where the corresponding vector's | |||
| 1081 | // names start.) | |||
| 1082 | template <class Data, typename... Step> | |||
| 1083 | static MOZ_ALWAYS_INLINEinline void InitializeBindingData( | |||
| 1084 | Data* data, uint32_t count, const ParserBindingNameVector& firstBindings, | |||
| 1085 | Step&&... step) { | |||
| 1086 | MOZ_ASSERT(data->length == 0, "data shouldn't be filled yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(data->length == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(data->length == 0))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("data->length == 0" " (" "data shouldn't be filled yet" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1086); AnnotateMozCrashReason("MOZ_ASSERT" "(" "data->length == 0" ") (" "data shouldn't be filled yet" ")"); do { *((volatile int *)__null) = 1086; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 1087 | ||||
| 1088 | ParserBindingName* start = GetScopeDataTrailingNamesPointer(data); | |||
| 1089 | ParserBindingName* cursor = std::uninitialized_copy( | |||
| 1090 | firstBindings.begin(), firstBindings.end(), start); | |||
| 1091 | ||||
| 1092 | #ifdef DEBUG1 | |||
| 1093 | ParserBindingName* end = | |||
| 1094 | #endif | |||
| 1095 | detail::InitializeIndexedBindings(data->slotInfo, start, cursor, | |||
| 1096 | std::forward<Step>(step)...); | |||
| 1097 | ||||
| 1098 | MOZ_ASSERT(PointerRangeSize(start, end) == count)do { static_assert( mozilla::detail::AssertionConditionType< decltype(PointerRangeSize(start, end) == count)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(PointerRangeSize(start, end) == count))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("PointerRangeSize(start, end) == count" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1098); AnnotateMozCrashReason("MOZ_ASSERT" "(" "PointerRangeSize(start, end) == count" ")"); do { *((volatile int*)__null) = 1098; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1099 | data->length = count; | |||
| 1100 | } | |||
| 1101 | ||||
| 1102 | static Maybe<GlobalScope::ParserData*> NewGlobalScopeData( | |||
| 1103 | FrontendContext* fc, ParseContext::Scope& scope, LifoAlloc& alloc, | |||
| 1104 | ParseContext* pc) { | |||
| 1105 | ParserBindingNameVector vars(fc); | |||
| 1106 | ParserBindingNameVector lets(fc); | |||
| 1107 | ParserBindingNameVector consts(fc); | |||
| 1108 | ||||
| 1109 | bool allBindingsClosedOver = pc->sc()->allBindingsClosedOver(); | |||
| 1110 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1111 | bool closedOver = allBindingsClosedOver || bi.closedOver(); | |||
| 1112 | ||||
| 1113 | switch (bi.kind()) { | |||
| 1114 | case BindingKind::Var: { | |||
| 1115 | bool isTopLevelFunction = | |||
| 1116 | bi.declarationKind() == DeclarationKind::BodyLevelFunction; | |||
| 1117 | ||||
| 1118 | ParserBindingName binding(bi.name(), closedOver, isTopLevelFunction); | |||
| 1119 | if (!vars.append(binding)) { | |||
| 1120 | return Nothing(); | |||
| 1121 | } | |||
| 1122 | break; | |||
| 1123 | } | |||
| 1124 | case BindingKind::Let: { | |||
| 1125 | ParserBindingName binding(bi.name(), closedOver); | |||
| 1126 | if (!lets.append(binding)) { | |||
| 1127 | return Nothing(); | |||
| 1128 | } | |||
| 1129 | break; | |||
| 1130 | } | |||
| 1131 | case BindingKind::Const: { | |||
| 1132 | ParserBindingName binding(bi.name(), closedOver); | |||
| 1133 | if (!consts.append(binding)) { | |||
| 1134 | return Nothing(); | |||
| 1135 | } | |||
| 1136 | break; | |||
| 1137 | } | |||
| 1138 | default: | |||
| 1139 | MOZ_CRASH("Bad global scope BindingKind")do { do { } while (false); MOZ_ReportCrash("" "Bad global scope BindingKind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1139); AnnotateMozCrashReason("MOZ_CRASH(" "Bad global scope BindingKind" ")"); do { *((volatile int*)__null) = 1139; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 1140 | } | |||
| 1141 | } | |||
| 1142 | ||||
| 1143 | GlobalScope::ParserData* bindings = nullptr; | |||
| 1144 | uint32_t numBindings = vars.length() + lets.length() + consts.length(); | |||
| 1145 | ||||
| 1146 | if (numBindings > 0) { | |||
| 1147 | bindings = NewEmptyBindingData<GlobalScope>(fc, alloc, numBindings); | |||
| 1148 | if (!bindings) { | |||
| 1149 | return Nothing(); | |||
| 1150 | } | |||
| 1151 | ||||
| 1152 | // The ordering here is important. See comments in GlobalScope. | |||
| 1153 | InitializeBindingData(bindings, numBindings, vars, | |||
| 1154 | &ParserGlobalScopeSlotInfo::letStart, lets, | |||
| 1155 | &ParserGlobalScopeSlotInfo::constStart, consts); | |||
| 1156 | } | |||
| 1157 | ||||
| 1158 | return Some(bindings); | |||
| 1159 | } | |||
| 1160 | ||||
| 1161 | Maybe<GlobalScope::ParserData*> ParserBase::newGlobalScopeData( | |||
| 1162 | ParseContext::Scope& scope) { | |||
| 1163 | return NewGlobalScopeData(fc_, scope, stencilAlloc(), pc_); | |||
| 1164 | } | |||
| 1165 | ||||
| 1166 | static Maybe<ModuleScope::ParserData*> NewModuleScopeData( | |||
| 1167 | FrontendContext* fc, ParseContext::Scope& scope, LifoAlloc& alloc, | |||
| 1168 | ParseContext* pc) { | |||
| 1169 | ParserBindingNameVector imports(fc); | |||
| 1170 | ParserBindingNameVector vars(fc); | |||
| 1171 | ParserBindingNameVector lets(fc); | |||
| 1172 | ParserBindingNameVector consts(fc); | |||
| 1173 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1174 | ParserBindingNameVector usings(fc); | |||
| 1175 | #endif | |||
| 1176 | ||||
| 1177 | bool allBindingsClosedOver = | |||
| 1178 | pc->sc()->allBindingsClosedOver() || scope.tooBigToOptimize(); | |||
| 1179 | ||||
| 1180 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1181 | // Imports are indirect bindings and must not be given known slots. | |||
| 1182 | ParserBindingName binding(bi.name(), | |||
| 1183 | (allBindingsClosedOver || bi.closedOver()) && | |||
| 1184 | bi.kind() != BindingKind::Import); | |||
| 1185 | switch (bi.kind()) { | |||
| 1186 | case BindingKind::Import: | |||
| 1187 | if (!imports.append(binding)) { | |||
| 1188 | return Nothing(); | |||
| 1189 | } | |||
| 1190 | break; | |||
| 1191 | case BindingKind::Var: | |||
| 1192 | if (!vars.append(binding)) { | |||
| 1193 | return Nothing(); | |||
| 1194 | } | |||
| 1195 | break; | |||
| 1196 | case BindingKind::Let: | |||
| 1197 | if (!lets.append(binding)) { | |||
| 1198 | return Nothing(); | |||
| 1199 | } | |||
| 1200 | break; | |||
| 1201 | case BindingKind::Const: | |||
| 1202 | if (!consts.append(binding)) { | |||
| 1203 | return Nothing(); | |||
| 1204 | } | |||
| 1205 | break; | |||
| 1206 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1207 | case BindingKind::Using: | |||
| 1208 | if (!usings.append(binding)) { | |||
| 1209 | return Nothing(); | |||
| 1210 | } | |||
| 1211 | break; | |||
| 1212 | #endif | |||
| 1213 | default: | |||
| 1214 | MOZ_CRASH("Bad module scope BindingKind")do { do { } while (false); MOZ_ReportCrash("" "Bad module scope BindingKind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1214); AnnotateMozCrashReason("MOZ_CRASH(" "Bad module scope BindingKind" ")"); do { *((volatile int*)__null) = 1214; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 1215 | } | |||
| 1216 | } | |||
| 1217 | ||||
| 1218 | ModuleScope::ParserData* bindings = nullptr; | |||
| 1219 | uint32_t numBindings = imports.length() + vars.length() + lets.length() + | |||
| 1220 | consts.length() | |||
| 1221 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1222 | + usings.length() | |||
| 1223 | #endif | |||
| 1224 | ; | |||
| 1225 | ||||
| 1226 | if (numBindings > 0) { | |||
| 1227 | bindings = NewEmptyBindingData<ModuleScope>(fc, alloc, numBindings); | |||
| 1228 | if (!bindings) { | |||
| 1229 | return Nothing(); | |||
| 1230 | } | |||
| 1231 | ||||
| 1232 | // The ordering here is important. See comments in ModuleScope. | |||
| 1233 | InitializeBindingData(bindings, numBindings, imports, | |||
| 1234 | &ParserModuleScopeSlotInfo::varStart, vars, | |||
| 1235 | &ParserModuleScopeSlotInfo::letStart, lets, | |||
| 1236 | &ParserModuleScopeSlotInfo::constStart, consts | |||
| 1237 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1238 | , | |||
| 1239 | &ParserModuleScopeSlotInfo::usingStart, usings | |||
| 1240 | #endif | |||
| 1241 | ); | |||
| 1242 | } | |||
| 1243 | ||||
| 1244 | return Some(bindings); | |||
| 1245 | } | |||
| 1246 | ||||
| 1247 | Maybe<ModuleScope::ParserData*> ParserBase::newModuleScopeData( | |||
| 1248 | ParseContext::Scope& scope) { | |||
| 1249 | return NewModuleScopeData(fc_, scope, stencilAlloc(), pc_); | |||
| 1250 | } | |||
| 1251 | ||||
| 1252 | static Maybe<EvalScope::ParserData*> NewEvalScopeData( | |||
| 1253 | FrontendContext* fc, ParseContext::Scope& scope, LifoAlloc& alloc, | |||
| 1254 | ParseContext* pc) { | |||
| 1255 | ParserBindingNameVector vars(fc); | |||
| 1256 | ||||
| 1257 | // Treat all bindings as closed over in non-strict eval. | |||
| 1258 | bool allBindingsClosedOver = | |||
| 1259 | !pc->sc()->strict() || pc->sc()->allBindingsClosedOver(); | |||
| 1260 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1261 | // Eval scopes only contain 'var' bindings. | |||
| 1262 | MOZ_ASSERT(bi.kind() == BindingKind::Var)do { static_assert( mozilla::detail::AssertionConditionType< decltype(bi.kind() == BindingKind::Var)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(bi.kind() == BindingKind::Var ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "bi.kind() == BindingKind::Var", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1262); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bi.kind() == BindingKind::Var" ")"); do { *((volatile int*)__null) = 1262; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1263 | bool isTopLevelFunction = | |||
| 1264 | bi.declarationKind() == DeclarationKind::BodyLevelFunction; | |||
| 1265 | bool closedOver = allBindingsClosedOver || bi.closedOver(); | |||
| 1266 | ||||
| 1267 | ParserBindingName binding(bi.name(), closedOver, isTopLevelFunction); | |||
| 1268 | if (!vars.append(binding)) { | |||
| 1269 | return Nothing(); | |||
| 1270 | } | |||
| 1271 | } | |||
| 1272 | ||||
| 1273 | EvalScope::ParserData* bindings = nullptr; | |||
| 1274 | uint32_t numBindings = vars.length(); | |||
| 1275 | ||||
| 1276 | if (numBindings > 0) { | |||
| 1277 | bindings = NewEmptyBindingData<EvalScope>(fc, alloc, numBindings); | |||
| 1278 | if (!bindings) { | |||
| 1279 | return Nothing(); | |||
| 1280 | } | |||
| 1281 | ||||
| 1282 | InitializeBindingData(bindings, numBindings, vars); | |||
| 1283 | } | |||
| 1284 | ||||
| 1285 | return Some(bindings); | |||
| 1286 | } | |||
| 1287 | ||||
| 1288 | Maybe<EvalScope::ParserData*> ParserBase::newEvalScopeData( | |||
| 1289 | ParseContext::Scope& scope) { | |||
| 1290 | return NewEvalScopeData(fc_, scope, stencilAlloc(), pc_); | |||
| 1291 | } | |||
| 1292 | ||||
| 1293 | static Maybe<FunctionScope::ParserData*> NewFunctionScopeData( | |||
| 1294 | FrontendContext* fc, ParseContext::Scope& scope, bool hasParameterExprs, | |||
| 1295 | LifoAlloc& alloc, ParseContext* pc) { | |||
| 1296 | ParserBindingNameVector positionalFormals(fc); | |||
| 1297 | ParserBindingNameVector formals(fc); | |||
| 1298 | ParserBindingNameVector vars(fc); | |||
| 1299 | ||||
| 1300 | bool allBindingsClosedOver = | |||
| 1301 | pc->sc()->allBindingsClosedOver() || scope.tooBigToOptimize(); | |||
| 1302 | bool argumentBindingsClosedOver = | |||
| 1303 | allBindingsClosedOver || pc->isGeneratorOrAsync(); | |||
| 1304 | bool hasDuplicateParams = pc->functionBox()->hasDuplicateParameters; | |||
| 1305 | ||||
| 1306 | // Positional parameter names must be added in order of appearance as they are | |||
| 1307 | // referenced using argument slots. | |||
| 1308 | for (size_t i = 0; i < pc->positionalFormalParameterNames().length(); i++) { | |||
| 1309 | TaggedParserAtomIndex name = pc->positionalFormalParameterNames()[i]; | |||
| 1310 | ||||
| 1311 | ParserBindingName bindName; | |||
| 1312 | if (name) { | |||
| 1313 | DeclaredNamePtr p = scope.lookupDeclaredName(name); | |||
| 1314 | ||||
| 1315 | // Do not consider any positional formal parameters closed over if | |||
| 1316 | // there are parameter defaults. It is the binding in the defaults | |||
| 1317 | // scope that is closed over instead. | |||
| 1318 | bool closedOver = | |||
| 1319 | argumentBindingsClosedOver || (p && p->value()->closedOver()); | |||
| 1320 | ||||
| 1321 | // If the parameter name has duplicates, only the final parameter | |||
| 1322 | // name should be on the environment, as otherwise the environment | |||
| 1323 | // object would have multiple, same-named properties. | |||
| 1324 | if (hasDuplicateParams) { | |||
| 1325 | for (size_t j = pc->positionalFormalParameterNames().length() - 1; | |||
| 1326 | j > i; j--) { | |||
| 1327 | if (TaggedParserAtomIndex(pc->positionalFormalParameterNames()[j]) == | |||
| 1328 | name) { | |||
| 1329 | closedOver = false; | |||
| 1330 | break; | |||
| 1331 | } | |||
| 1332 | } | |||
| 1333 | } | |||
| 1334 | ||||
| 1335 | bindName = ParserBindingName(name, closedOver); | |||
| 1336 | } | |||
| 1337 | ||||
| 1338 | if (!positionalFormals.append(bindName)) { | |||
| 1339 | return Nothing(); | |||
| 1340 | } | |||
| 1341 | } | |||
| 1342 | ||||
| 1343 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1344 | ParserBindingName binding(bi.name(), | |||
| 1345 | allBindingsClosedOver || bi.closedOver()); | |||
| 1346 | switch (bi.kind()) { | |||
| 1347 | case BindingKind::FormalParameter: | |||
| 1348 | // Positional parameter names are already handled above. | |||
| 1349 | if (bi.declarationKind() == DeclarationKind::FormalParameter) { | |||
| 1350 | if (!formals.append(binding)) { | |||
| 1351 | return Nothing(); | |||
| 1352 | } | |||
| 1353 | } | |||
| 1354 | break; | |||
| 1355 | case BindingKind::Var: | |||
| 1356 | // The only vars in the function scope when there are parameter | |||
| 1357 | // exprs, which induces a separate var environment, should be the | |||
| 1358 | // special bindings. | |||
| 1359 | MOZ_ASSERT_IF(hasParameterExprs,do { if (hasParameterExprs) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(FunctionScope::isSpecialName (bi.name()))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(FunctionScope::isSpecialName(bi.name ())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("FunctionScope::isSpecialName(bi.name())", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1360); AnnotateMozCrashReason("MOZ_ASSERT" "(" "FunctionScope::isSpecialName(bi.name())" ")"); do { *((volatile int*)__null) = 1360; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 1360 | FunctionScope::isSpecialName(bi.name()))do { if (hasParameterExprs) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(FunctionScope::isSpecialName (bi.name()))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(FunctionScope::isSpecialName(bi.name ())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("FunctionScope::isSpecialName(bi.name())", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1360); AnnotateMozCrashReason("MOZ_ASSERT" "(" "FunctionScope::isSpecialName(bi.name())" ")"); do { *((volatile int*)__null) = 1360; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 1361 | if (!vars.append(binding)) { | |||
| 1362 | return Nothing(); | |||
| 1363 | } | |||
| 1364 | break; | |||
| 1365 | case BindingKind::Let: | |||
| 1366 | case BindingKind::Const: | |||
| 1367 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1368 | case BindingKind::Using: | |||
| 1369 | #endif | |||
| 1370 | break; | |||
| 1371 | default: | |||
| 1372 | MOZ_CRASH("bad function scope BindingKind")do { do { } while (false); MOZ_ReportCrash("" "bad function scope BindingKind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1372); AnnotateMozCrashReason("MOZ_CRASH(" "bad function scope BindingKind" ")"); do { *((volatile int*)__null) = 1372; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 1373 | break; | |||
| 1374 | } | |||
| 1375 | } | |||
| 1376 | ||||
| 1377 | FunctionScope::ParserData* bindings = nullptr; | |||
| 1378 | uint32_t numBindings = | |||
| 1379 | positionalFormals.length() + formals.length() + vars.length(); | |||
| 1380 | ||||
| 1381 | if (numBindings > 0) { | |||
| 1382 | bindings = NewEmptyBindingData<FunctionScope>(fc, alloc, numBindings); | |||
| 1383 | if (!bindings) { | |||
| 1384 | return Nothing(); | |||
| 1385 | } | |||
| 1386 | ||||
| 1387 | // The ordering here is important. See comments in FunctionScope. | |||
| 1388 | InitializeBindingData( | |||
| 1389 | bindings, numBindings, positionalFormals, | |||
| 1390 | &ParserFunctionScopeSlotInfo::nonPositionalFormalStart, formals, | |||
| 1391 | &ParserFunctionScopeSlotInfo::varStart, vars); | |||
| 1392 | } | |||
| 1393 | ||||
| 1394 | return Some(bindings); | |||
| 1395 | } | |||
| 1396 | ||||
| 1397 | // Compute if `NewFunctionScopeData` would return any binding list with any | |||
| 1398 | // entry marked as closed-over. This is done without the need to allocate the | |||
| 1399 | // binding list. If true, an EnvironmentObject will be needed at runtime. | |||
| 1400 | bool FunctionScopeHasClosedOverBindings(ParseContext* pc) { | |||
| 1401 | bool allBindingsClosedOver = pc->sc()->allBindingsClosedOver() || | |||
| 1402 | pc->functionScope().tooBigToOptimize(); | |||
| 1403 | ||||
| 1404 | for (BindingIter bi = pc->functionScope().bindings(pc); bi; bi++) { | |||
| 1405 | switch (bi.kind()) { | |||
| 1406 | case BindingKind::FormalParameter: | |||
| 1407 | case BindingKind::Var: | |||
| 1408 | if (allBindingsClosedOver || bi.closedOver()) { | |||
| 1409 | return true; | |||
| 1410 | } | |||
| 1411 | break; | |||
| 1412 | ||||
| 1413 | default: | |||
| 1414 | break; | |||
| 1415 | } | |||
| 1416 | } | |||
| 1417 | ||||
| 1418 | return false; | |||
| 1419 | } | |||
| 1420 | ||||
| 1421 | Maybe<FunctionScope::ParserData*> ParserBase::newFunctionScopeData( | |||
| 1422 | ParseContext::Scope& scope, bool hasParameterExprs) { | |||
| 1423 | return NewFunctionScopeData(fc_, scope, hasParameterExprs, stencilAlloc(), | |||
| 1424 | pc_); | |||
| 1425 | } | |||
| 1426 | ||||
| 1427 | VarScope::ParserData* NewEmptyVarScopeData(FrontendContext* fc, | |||
| 1428 | LifoAlloc& alloc, | |||
| 1429 | uint32_t numBindings) { | |||
| 1430 | return NewEmptyBindingData<VarScope>(fc, alloc, numBindings); | |||
| 1431 | } | |||
| 1432 | ||||
| 1433 | static Maybe<VarScope::ParserData*> NewVarScopeData(FrontendContext* fc, | |||
| 1434 | ParseContext::Scope& scope, | |||
| 1435 | LifoAlloc& alloc, | |||
| 1436 | ParseContext* pc) { | |||
| 1437 | ParserBindingNameVector vars(fc); | |||
| 1438 | ||||
| 1439 | bool allBindingsClosedOver = | |||
| 1440 | pc->sc()->allBindingsClosedOver() || scope.tooBigToOptimize(); | |||
| 1441 | ||||
| 1442 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1443 | if (bi.kind() == BindingKind::Var) { | |||
| 1444 | ParserBindingName binding(bi.name(), | |||
| 1445 | allBindingsClosedOver || bi.closedOver()); | |||
| 1446 | if (!vars.append(binding)) { | |||
| 1447 | return Nothing(); | |||
| 1448 | } | |||
| 1449 | } else { | |||
| 1450 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(bi.kind() == BindingKind::Let || bi.kind() == BindingKind ::Const)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(bi.kind() == BindingKind::Let || bi.kind() == BindingKind ::Const))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("bi.kind() == BindingKind::Let || bi.kind() == BindingKind::Const" " (" "bad var scope BindingKind" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1452); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bi.kind() == BindingKind::Let || bi.kind() == BindingKind::Const" ") (" "bad var scope BindingKind" ")"); do { *((volatile int *)__null) = 1452; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1451 | bi.kind() == BindingKind::Let || bi.kind() == BindingKind::Const,do { static_assert( mozilla::detail::AssertionConditionType< decltype(bi.kind() == BindingKind::Let || bi.kind() == BindingKind ::Const)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(bi.kind() == BindingKind::Let || bi.kind() == BindingKind ::Const))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("bi.kind() == BindingKind::Let || bi.kind() == BindingKind::Const" " (" "bad var scope BindingKind" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1452); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bi.kind() == BindingKind::Let || bi.kind() == BindingKind::Const" ") (" "bad var scope BindingKind" ")"); do { *((volatile int *)__null) = 1452; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1452 | "bad var scope BindingKind")do { static_assert( mozilla::detail::AssertionConditionType< decltype(bi.kind() == BindingKind::Let || bi.kind() == BindingKind ::Const)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(bi.kind() == BindingKind::Let || bi.kind() == BindingKind ::Const))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("bi.kind() == BindingKind::Let || bi.kind() == BindingKind::Const" " (" "bad var scope BindingKind" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1452); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bi.kind() == BindingKind::Let || bi.kind() == BindingKind::Const" ") (" "bad var scope BindingKind" ")"); do { *((volatile int *)__null) = 1452; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 1453 | } | |||
| 1454 | } | |||
| 1455 | ||||
| 1456 | VarScope::ParserData* bindings = nullptr; | |||
| 1457 | uint32_t numBindings = vars.length(); | |||
| 1458 | ||||
| 1459 | if (numBindings > 0) { | |||
| 1460 | bindings = NewEmptyBindingData<VarScope>(fc, alloc, numBindings); | |||
| 1461 | if (!bindings) { | |||
| 1462 | return Nothing(); | |||
| 1463 | } | |||
| 1464 | ||||
| 1465 | InitializeBindingData(bindings, numBindings, vars); | |||
| 1466 | } | |||
| 1467 | ||||
| 1468 | return Some(bindings); | |||
| 1469 | } | |||
| 1470 | ||||
| 1471 | // Compute if `NewVarScopeData` would return any binding list. This is done | |||
| 1472 | // without allocate the binding list. | |||
| 1473 | static bool VarScopeHasBindings(ParseContext* pc) { | |||
| 1474 | for (BindingIter bi = pc->varScope().bindings(pc); bi; bi++) { | |||
| 1475 | if (bi.kind() == BindingKind::Var) { | |||
| 1476 | return true; | |||
| 1477 | } | |||
| 1478 | } | |||
| 1479 | ||||
| 1480 | return false; | |||
| 1481 | } | |||
| 1482 | ||||
| 1483 | Maybe<VarScope::ParserData*> ParserBase::newVarScopeData( | |||
| 1484 | ParseContext::Scope& scope) { | |||
| 1485 | return NewVarScopeData(fc_, scope, stencilAlloc(), pc_); | |||
| 1486 | } | |||
| 1487 | ||||
| 1488 | static Maybe<LexicalScope::ParserData*> NewLexicalScopeData( | |||
| 1489 | FrontendContext* fc, ParseContext::Scope& scope, LifoAlloc& alloc, | |||
| 1490 | ParseContext* pc) { | |||
| 1491 | ParserBindingNameVector lets(fc); | |||
| 1492 | ParserBindingNameVector consts(fc); | |||
| 1493 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1494 | ParserBindingNameVector usings(fc); | |||
| 1495 | #endif | |||
| 1496 | ||||
| 1497 | bool allBindingsClosedOver = | |||
| 1498 | pc->sc()->allBindingsClosedOver() || scope.tooBigToOptimize(); | |||
| 1499 | ||||
| 1500 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1501 | ParserBindingName binding(bi.name(), | |||
| 1502 | allBindingsClosedOver || bi.closedOver()); | |||
| 1503 | switch (bi.kind()) { | |||
| 1504 | case BindingKind::Let: | |||
| 1505 | if (!lets.append(binding)) { | |||
| 1506 | return Nothing(); | |||
| 1507 | } | |||
| 1508 | break; | |||
| 1509 | case BindingKind::Const: | |||
| 1510 | if (!consts.append(binding)) { | |||
| 1511 | return Nothing(); | |||
| 1512 | } | |||
| 1513 | break; | |||
| 1514 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1515 | case BindingKind::Using: | |||
| 1516 | if (!usings.append(binding)) { | |||
| 1517 | return Nothing(); | |||
| 1518 | } | |||
| 1519 | break; | |||
| 1520 | #endif | |||
| 1521 | case BindingKind::Var: | |||
| 1522 | case BindingKind::FormalParameter: | |||
| 1523 | break; | |||
| 1524 | default: | |||
| 1525 | MOZ_CRASH("Bad lexical scope BindingKind")do { do { } while (false); MOZ_ReportCrash("" "Bad lexical scope BindingKind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1525); AnnotateMozCrashReason("MOZ_CRASH(" "Bad lexical scope BindingKind" ")"); do { *((volatile int*)__null) = 1525; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 1526 | break; | |||
| 1527 | } | |||
| 1528 | } | |||
| 1529 | ||||
| 1530 | LexicalScope::ParserData* bindings = nullptr; | |||
| 1531 | uint32_t numBindings = lets.length() + consts.length() | |||
| 1532 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1533 | + usings.length() | |||
| 1534 | #endif | |||
| 1535 | ; | |||
| 1536 | ||||
| 1537 | if (numBindings > 0) { | |||
| 1538 | bindings = NewEmptyBindingData<LexicalScope>(fc, alloc, numBindings); | |||
| 1539 | if (!bindings) { | |||
| 1540 | return Nothing(); | |||
| 1541 | } | |||
| 1542 | ||||
| 1543 | // The ordering here is important. See comments in LexicalScope. | |||
| 1544 | InitializeBindingData(bindings, numBindings, lets, | |||
| 1545 | &ParserLexicalScopeSlotInfo::constStart, consts | |||
| 1546 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1547 | , | |||
| 1548 | &ParserLexicalScopeSlotInfo::usingStart, usings | |||
| 1549 | #endif | |||
| 1550 | ); | |||
| 1551 | } | |||
| 1552 | ||||
| 1553 | return Some(bindings); | |||
| 1554 | } | |||
| 1555 | ||||
| 1556 | // Compute if `NewLexicalScopeData` would return any binding list with any entry | |||
| 1557 | // marked as closed-over. This is done without the need to allocate the binding | |||
| 1558 | // list. If true, an EnvironmentObject will be needed at runtime. | |||
| 1559 | bool LexicalScopeHasClosedOverBindings(ParseContext* pc, | |||
| 1560 | ParseContext::Scope& scope) { | |||
| 1561 | bool allBindingsClosedOver = | |||
| 1562 | pc->sc()->allBindingsClosedOver() || scope.tooBigToOptimize(); | |||
| 1563 | ||||
| 1564 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1565 | switch (bi.kind()) { | |||
| 1566 | case BindingKind::Let: | |||
| 1567 | case BindingKind::Const: | |||
| 1568 | if (allBindingsClosedOver || bi.closedOver()) { | |||
| 1569 | return true; | |||
| 1570 | } | |||
| 1571 | break; | |||
| 1572 | ||||
| 1573 | default: | |||
| 1574 | break; | |||
| 1575 | } | |||
| 1576 | } | |||
| 1577 | ||||
| 1578 | return false; | |||
| 1579 | } | |||
| 1580 | ||||
| 1581 | Maybe<LexicalScope::ParserData*> ParserBase::newLexicalScopeData( | |||
| 1582 | ParseContext::Scope& scope) { | |||
| 1583 | return NewLexicalScopeData(fc_, scope, stencilAlloc(), pc_); | |||
| 1584 | } | |||
| 1585 | ||||
| 1586 | static Maybe<ClassBodyScope::ParserData*> NewClassBodyScopeData( | |||
| 1587 | FrontendContext* fc, ParseContext::Scope& scope, LifoAlloc& alloc, | |||
| 1588 | ParseContext* pc) { | |||
| 1589 | ParserBindingNameVector privateBrand(fc); | |||
| 1590 | ParserBindingNameVector synthetics(fc); | |||
| 1591 | ParserBindingNameVector privateMethods(fc); | |||
| 1592 | ||||
| 1593 | bool allBindingsClosedOver = | |||
| 1594 | pc->sc()->allBindingsClosedOver() || scope.tooBigToOptimize(); | |||
| 1595 | ||||
| 1596 | for (BindingIter bi = scope.bindings(pc); bi; bi++) { | |||
| 1597 | ParserBindingName binding(bi.name(), | |||
| 1598 | allBindingsClosedOver || bi.closedOver()); | |||
| 1599 | switch (bi.kind()) { | |||
| 1600 | case BindingKind::Synthetic: | |||
| 1601 | if (bi.name() == | |||
| 1602 | TaggedParserAtomIndex::WellKnown::dot_privateBrand_()) { | |||
| 1603 | MOZ_ASSERT(privateBrand.empty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(privateBrand.empty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(privateBrand.empty()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("privateBrand.empty()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1603); AnnotateMozCrashReason("MOZ_ASSERT" "(" "privateBrand.empty()" ")"); do { *((volatile int*)__null) = 1603; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1604 | if (!privateBrand.append(binding)) { | |||
| 1605 | return Nothing(); | |||
| 1606 | } | |||
| 1607 | } else { | |||
| 1608 | if (!synthetics.append(binding)) { | |||
| 1609 | return Nothing(); | |||
| 1610 | } | |||
| 1611 | } | |||
| 1612 | break; | |||
| 1613 | ||||
| 1614 | case BindingKind::PrivateMethod: | |||
| 1615 | if (!privateMethods.append(binding)) { | |||
| 1616 | return Nothing(); | |||
| 1617 | } | |||
| 1618 | break; | |||
| 1619 | ||||
| 1620 | default: | |||
| 1621 | MOZ_CRASH("bad class body scope BindingKind")do { do { } while (false); MOZ_ReportCrash("" "bad class body scope BindingKind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1621); AnnotateMozCrashReason("MOZ_CRASH(" "bad class body scope BindingKind" ")"); do { *((volatile int*)__null) = 1621; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 1622 | break; | |||
| 1623 | } | |||
| 1624 | } | |||
| 1625 | ||||
| 1626 | // We should have zero or one private brands. | |||
| 1627 | MOZ_ASSERT(privateBrand.length() == 0 || privateBrand.length() == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(privateBrand.length() == 0 || privateBrand.length() == 1)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(privateBrand.length() == 0 || privateBrand.length() == 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("privateBrand.length() == 0 || privateBrand.length() == 1", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1627); AnnotateMozCrashReason("MOZ_ASSERT" "(" "privateBrand.length() == 0 || privateBrand.length() == 1" ")"); do { *((volatile int*)__null) = 1627; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1628 | ||||
| 1629 | ClassBodyScope::ParserData* bindings = nullptr; | |||
| 1630 | uint32_t numBindings = | |||
| 1631 | privateBrand.length() + synthetics.length() + privateMethods.length(); | |||
| 1632 | ||||
| 1633 | if (numBindings > 0) { | |||
| 1634 | bindings = NewEmptyBindingData<ClassBodyScope>(fc, alloc, numBindings); | |||
| 1635 | if (!bindings) { | |||
| 1636 | return Nothing(); | |||
| 1637 | } | |||
| 1638 | // To simplify initialization of the bindings, we concatenate the | |||
| 1639 | // synthetics+privateBrand vector such that the private brand is always the | |||
| 1640 | // first element, as ordering is important. See comments in ClassBodyScope. | |||
| 1641 | ParserBindingNameVector brandAndSynthetics(fc); | |||
| 1642 | if (!brandAndSynthetics.appendAll(privateBrand)) { | |||
| 1643 | return Nothing(); | |||
| 1644 | } | |||
| 1645 | if (!brandAndSynthetics.appendAll(synthetics)) { | |||
| 1646 | return Nothing(); | |||
| 1647 | } | |||
| 1648 | ||||
| 1649 | // The ordering here is important. See comments in ClassBodyScope. | |||
| 1650 | InitializeBindingData(bindings, numBindings, brandAndSynthetics, | |||
| 1651 | &ParserClassBodyScopeSlotInfo::privateMethodStart, | |||
| 1652 | privateMethods); | |||
| 1653 | } | |||
| 1654 | ||||
| 1655 | // `EmitterScope::lookupPrivate()` requires `.privateBrand` to be stored in a | |||
| 1656 | // predictable slot: the first slot available in the environment object, | |||
| 1657 | // `ClassBodyLexicalEnvironmentObject::privateBrandSlot()`. We assume that | |||
| 1658 | // if `.privateBrand` is first in the scope, it will be stored there. | |||
| 1659 | MOZ_ASSERT_IF(!privateBrand.empty(),do { if (!privateBrand.empty()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(GetScopeDataTrailingNames (bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_ ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex ::WellKnown::dot_privateBrand_()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1661); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_()" ")"); do { *((volatile int*)__null) = 1661; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 1660 | GetScopeDataTrailingNames(bindings)[0].name() ==do { if (!privateBrand.empty()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(GetScopeDataTrailingNames (bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_ ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex ::WellKnown::dot_privateBrand_()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1661); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_()" ")"); do { *((volatile int*)__null) = 1661; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 1661 | TaggedParserAtomIndex::WellKnown::dot_privateBrand_())do { if (!privateBrand.empty()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(GetScopeDataTrailingNames (bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_ ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex ::WellKnown::dot_privateBrand_()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1661); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetScopeDataTrailingNames(bindings)[0].name() == TaggedParserAtomIndex::WellKnown::dot_privateBrand_()" ")"); do { *((volatile int*)__null) = 1661; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 1662 | ||||
| 1663 | return Some(bindings); | |||
| 1664 | } | |||
| 1665 | ||||
| 1666 | Maybe<ClassBodyScope::ParserData*> ParserBase::newClassBodyScopeData( | |||
| 1667 | ParseContext::Scope& scope) { | |||
| 1668 | return NewClassBodyScopeData(fc_, scope, stencilAlloc(), pc_); | |||
| 1669 | } | |||
| 1670 | ||||
| 1671 | template <> | |||
| 1672 | SyntaxParseHandler::LexicalScopeNodeResult | |||
| 1673 | PerHandlerParser<SyntaxParseHandler>::finishLexicalScope( | |||
| 1674 | ParseContext::Scope& scope, Node body, ScopeKind kind) { | |||
| 1675 | if (!propagateFreeNamesAndMarkClosedOverBindings(scope)) { | |||
| 1676 | return errorResult(); | |||
| 1677 | } | |||
| 1678 | ||||
| 1679 | return handler_.newLexicalScope(body); | |||
| 1680 | } | |||
| 1681 | ||||
| 1682 | template <> | |||
| 1683 | FullParseHandler::LexicalScopeNodeResult | |||
| 1684 | PerHandlerParser<FullParseHandler>::finishLexicalScope( | |||
| 1685 | ParseContext::Scope& scope, ParseNode* body, ScopeKind kind) { | |||
| 1686 | if (!propagateFreeNamesAndMarkClosedOverBindings(scope)) { | |||
| 1687 | return errorResult(); | |||
| 1688 | } | |||
| 1689 | ||||
| 1690 | Maybe<LexicalScope::ParserData*> bindings = newLexicalScopeData(scope); | |||
| 1691 | if (!bindings) { | |||
| 1692 | return errorResult(); | |||
| 1693 | } | |||
| 1694 | ||||
| 1695 | return handler_.newLexicalScope(*bindings, body, kind); | |||
| 1696 | } | |||
| 1697 | ||||
| 1698 | template <> | |||
| 1699 | SyntaxParseHandler::ClassBodyScopeNodeResult | |||
| 1700 | PerHandlerParser<SyntaxParseHandler>::finishClassBodyScope( | |||
| 1701 | ParseContext::Scope& scope, ListNodeType body) { | |||
| 1702 | if (!propagateFreeNamesAndMarkClosedOverBindings(scope)) { | |||
| 1703 | return errorResult(); | |||
| 1704 | } | |||
| 1705 | ||||
| 1706 | return handler_.newClassBodyScope(body); | |||
| 1707 | } | |||
| 1708 | ||||
| 1709 | template <> | |||
| 1710 | FullParseHandler::ClassBodyScopeNodeResult | |||
| 1711 | PerHandlerParser<FullParseHandler>::finishClassBodyScope( | |||
| 1712 | ParseContext::Scope& scope, ListNode* body) { | |||
| 1713 | if (!propagateFreeNamesAndMarkClosedOverBindings(scope)) { | |||
| ||||
| 1714 | return errorResult(); | |||
| 1715 | } | |||
| 1716 | ||||
| 1717 | Maybe<ClassBodyScope::ParserData*> bindings = newClassBodyScopeData(scope); | |||
| 1718 | if (!bindings) { | |||
| 1719 | return errorResult(); | |||
| 1720 | } | |||
| 1721 | ||||
| 1722 | return handler_.newClassBodyScope(*bindings, body); | |||
| 1723 | } | |||
| 1724 | ||||
| 1725 | template <class ParseHandler> | |||
| 1726 | bool PerHandlerParser<ParseHandler>::checkForUndefinedPrivateFields( | |||
| 1727 | EvalSharedContext* evalSc) { | |||
| 1728 | if (!this->compilationState_.isInitialStencil()) { | |||
| 1729 | // We're delazifying -- so we already checked private names during first | |||
| 1730 | // parse. | |||
| 1731 | return true; | |||
| 1732 | } | |||
| 1733 | ||||
| 1734 | Vector<UnboundPrivateName, 8> unboundPrivateNames(fc_); | |||
| 1735 | if (!usedNames_.getUnboundPrivateNames(unboundPrivateNames)) { | |||
| 1736 | return false; | |||
| 1737 | } | |||
| 1738 | ||||
| 1739 | // No unbound names, let's get out of here! | |||
| 1740 | if (unboundPrivateNames.empty()) { | |||
| 1741 | return true; | |||
| 1742 | } | |||
| 1743 | ||||
| 1744 | // It is an early error if there's private name references unbound, | |||
| 1745 | // unless it's an eval, in which case we need to check the scope | |||
| 1746 | // chain. | |||
| 1747 | if (!evalSc) { | |||
| 1748 | // The unbound private names are sorted, so just grab the first one. | |||
| 1749 | UnboundPrivateName minimum = unboundPrivateNames[0]; | |||
| 1750 | UniqueChars str = this->parserAtoms().toPrintableString(minimum.atom); | |||
| 1751 | if (!str) { | |||
| 1752 | ReportOutOfMemory(this->fc_); | |||
| 1753 | return false; | |||
| 1754 | } | |||
| 1755 | ||||
| 1756 | errorAt(minimum.position.begin, JSMSG_MISSING_PRIVATE_DECL, str.get()); | |||
| 1757 | return false; | |||
| 1758 | } | |||
| 1759 | ||||
| 1760 | // It's important that the unbound private names are sorted, as we | |||
| 1761 | // want our errors to always be issued to the first textually. | |||
| 1762 | for (UnboundPrivateName unboundName : unboundPrivateNames) { | |||
| 1763 | // If the enclosingScope is non-syntactic, then we are in a | |||
| 1764 | // Debugger.Frame.prototype.eval call. In order to find the declared private | |||
| 1765 | // names, we must use the effective scope that was determined when creating | |||
| 1766 | // the scopeContext. | |||
| 1767 | if (!this->compilationState_.scopeContext | |||
| 1768 | .effectiveScopePrivateFieldCacheHas(unboundName.atom)) { | |||
| 1769 | UniqueChars str = this->parserAtoms().toPrintableString(unboundName.atom); | |||
| 1770 | if (!str) { | |||
| 1771 | ReportOutOfMemory(this->fc_); | |||
| 1772 | return false; | |||
| 1773 | } | |||
| 1774 | errorAt(unboundName.position.begin, JSMSG_MISSING_PRIVATE_DECL, | |||
| 1775 | str.get()); | |||
| 1776 | return false; | |||
| 1777 | } | |||
| 1778 | } | |||
| 1779 | ||||
| 1780 | return true; | |||
| 1781 | } | |||
| 1782 | ||||
| 1783 | template <typename Unit> | |||
| 1784 | FullParseHandler::LexicalScopeNodeResult | |||
| 1785 | Parser<FullParseHandler, Unit>::evalBody(EvalSharedContext* evalsc) { | |||
| 1786 | SourceParseContext evalpc(this, evalsc, /* newDirectives = */ nullptr); | |||
| 1787 | if (!evalpc.init()) { | |||
| 1788 | return errorResult(); | |||
| 1789 | } | |||
| 1790 | ||||
| 1791 | ParseContext::VarScope varScope(this); | |||
| 1792 | if (!varScope.init(pc_)) { | |||
| 1793 | return errorResult(); | |||
| 1794 | } | |||
| 1795 | ||||
| 1796 | LexicalScopeNode* body; | |||
| 1797 | { | |||
| 1798 | // All evals have an implicit non-extensible lexical scope. | |||
| 1799 | ParseContext::Scope lexicalScope(this); | |||
| 1800 | if (!lexicalScope.init(pc_)) { | |||
| 1801 | return errorResult(); | |||
| 1802 | } | |||
| 1803 | ||||
| 1804 | ListNode* list; | |||
| 1805 | MOZ_TRY_VAR(list, statementList(YieldIsName))do { auto mozTryVarTempResult_ = (statementList(YieldIsName)) ; if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0)) ) { return mozTryVarTempResult_.propagateErr(); } (list) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 1806 | ||||
| 1807 | if (!checkStatementsEOF()) { | |||
| 1808 | return errorResult(); | |||
| 1809 | } | |||
| 1810 | ||||
| 1811 | // Private names not lexically defined must trigger a syntax error. | |||
| 1812 | if (!checkForUndefinedPrivateFields(evalsc)) { | |||
| 1813 | return errorResult(); | |||
| 1814 | } | |||
| 1815 | ||||
| 1816 | MOZ_TRY_VAR(body, finishLexicalScope(lexicalScope, list))do { auto mozTryVarTempResult_ = (finishLexicalScope(lexicalScope , list)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 1817 | } | |||
| 1818 | ||||
| 1819 | #ifdef DEBUG1 | |||
| 1820 | if (evalpc.superScopeNeedsHomeObject() && | |||
| 1821 | !this->compilationState_.input.enclosingScope.isNull()) { | |||
| 1822 | // If superScopeNeedsHomeObject_ is set and we are an entry-point | |||
| 1823 | // ParseContext, then we must be emitting an eval script, and the | |||
| 1824 | // outer function must already be marked as needing a home object | |||
| 1825 | // since it contains an eval. | |||
| 1826 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" " (" "Eval must have found an enclosing function box scope that " "allows super.property" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1829); AnnotateMozCrashReason("MOZ_ASSERT" "(" "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" ") (" "Eval must have found an enclosing function box scope that " "allows super.property" ")"); do { *((volatile int*)__null) = 1829; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1827 | this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain,do { static_assert( mozilla::detail::AssertionConditionType< decltype(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" " (" "Eval must have found an enclosing function box scope that " "allows super.property" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1829); AnnotateMozCrashReason("MOZ_ASSERT" "(" "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" ") (" "Eval must have found an enclosing function box scope that " "allows super.property" ")"); do { *((volatile int*)__null) = 1829; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1828 | "Eval must have found an enclosing function box scope that "do { static_assert( mozilla::detail::AssertionConditionType< decltype(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" " (" "Eval must have found an enclosing function box scope that " "allows super.property" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1829); AnnotateMozCrashReason("MOZ_ASSERT" "(" "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" ") (" "Eval must have found an enclosing function box scope that " "allows super.property" ")"); do { *((volatile int*)__null) = 1829; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1829 | "allows super.property")do { static_assert( mozilla::detail::AssertionConditionType< decltype(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" " (" "Eval must have found an enclosing function box scope that " "allows super.property" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1829); AnnotateMozCrashReason("MOZ_ASSERT" "(" "this->compilationState_.scopeContext.hasFunctionNeedsHomeObjectOnChain" ") (" "Eval must have found an enclosing function box scope that " "allows super.property" ")"); do { *((volatile int*)__null) = 1829; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 1830 | } | |||
| 1831 | #endif | |||
| 1832 | ||||
| 1833 | if (!CheckParseTree(this->fc_, alloc_, body)) { | |||
| 1834 | return errorResult(); | |||
| 1835 | } | |||
| 1836 | ||||
| 1837 | ParseNode* node = body; | |||
| 1838 | // Don't constant-fold inside "use asm" code, as this could create a parse | |||
| 1839 | // tree that doesn't type-check as asm.js. | |||
| 1840 | if (!pc_->useAsmOrInsideUseAsm()) { | |||
| 1841 | if (!FoldConstants(this->fc_, this->parserAtoms(), &node, &handler_)) { | |||
| 1842 | return errorResult(); | |||
| 1843 | } | |||
| 1844 | } | |||
| 1845 | body = handler_.asLexicalScopeNode(node); | |||
| 1846 | ||||
| 1847 | if (!this->setSourceMapInfo()) { | |||
| 1848 | return errorResult(); | |||
| 1849 | } | |||
| 1850 | ||||
| 1851 | if (pc_->sc()->strict()) { | |||
| 1852 | if (!propagateFreeNamesAndMarkClosedOverBindings(varScope)) { | |||
| 1853 | return errorResult(); | |||
| 1854 | } | |||
| 1855 | } else { | |||
| 1856 | // For non-strict eval scripts, since all bindings are automatically | |||
| 1857 | // considered closed over, we don't need to call propagateFreeNames- | |||
| 1858 | // AndMarkClosedOverBindings. However, Annex B.3.3 functions still need to | |||
| 1859 | // be marked. | |||
| 1860 | if (!varScope.propagateAndMarkAnnexBFunctionBoxes(pc_, this)) { | |||
| 1861 | return errorResult(); | |||
| 1862 | } | |||
| 1863 | } | |||
| 1864 | ||||
| 1865 | Maybe<EvalScope::ParserData*> bindings = newEvalScopeData(pc_->varScope()); | |||
| 1866 | if (!bindings) { | |||
| 1867 | return errorResult(); | |||
| 1868 | } | |||
| 1869 | evalsc->bindings = *bindings; | |||
| 1870 | ||||
| 1871 | return body; | |||
| 1872 | } | |||
| 1873 | ||||
| 1874 | template <typename Unit> | |||
| 1875 | FullParseHandler::ListNodeResult Parser<FullParseHandler, Unit>::globalBody( | |||
| 1876 | GlobalSharedContext* globalsc) { | |||
| 1877 | SourceParseContext globalpc(this, globalsc, /* newDirectives = */ nullptr); | |||
| 1878 | if (!globalpc.init()) { | |||
| 1879 | return errorResult(); | |||
| 1880 | } | |||
| 1881 | ||||
| 1882 | ParseContext::VarScope varScope(this); | |||
| 1883 | if (!varScope.init(pc_)) { | |||
| 1884 | return errorResult(); | |||
| 1885 | } | |||
| 1886 | ||||
| 1887 | ListNode* body; | |||
| 1888 | MOZ_TRY_VAR(body, statementList(YieldIsName))do { auto mozTryVarTempResult_ = (statementList(YieldIsName)) ; if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0)) ) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 1889 | ||||
| 1890 | if (!checkStatementsEOF()) { | |||
| 1891 | return errorResult(); | |||
| 1892 | } | |||
| 1893 | ||||
| 1894 | if (!CheckParseTree(this->fc_, alloc_, body)) { | |||
| 1895 | return errorResult(); | |||
| 1896 | } | |||
| 1897 | ||||
| 1898 | if (!checkForUndefinedPrivateFields()) { | |||
| 1899 | return errorResult(); | |||
| 1900 | } | |||
| 1901 | ||||
| 1902 | ParseNode* node = body; | |||
| 1903 | // Don't constant-fold inside "use asm" code, as this could create a parse | |||
| 1904 | // tree that doesn't type-check as asm.js. | |||
| 1905 | if (!pc_->useAsmOrInsideUseAsm()) { | |||
| 1906 | if (!FoldConstants(this->fc_, this->parserAtoms(), &node, &handler_)) { | |||
| 1907 | return errorResult(); | |||
| 1908 | } | |||
| 1909 | } | |||
| 1910 | body = &node->as<ListNode>(); | |||
| 1911 | ||||
| 1912 | if (!this->setSourceMapInfo()) { | |||
| 1913 | return errorResult(); | |||
| 1914 | } | |||
| 1915 | ||||
| 1916 | // For global scripts, whether bindings are closed over or not doesn't | |||
| 1917 | // matter, so no need to call propagateFreeNamesAndMarkClosedOver- | |||
| 1918 | // Bindings. However, Annex B.3.3 functions still need to be marked. | |||
| 1919 | if (!varScope.propagateAndMarkAnnexBFunctionBoxes(pc_, this)) { | |||
| 1920 | return errorResult(); | |||
| 1921 | } | |||
| 1922 | ||||
| 1923 | Maybe<GlobalScope::ParserData*> bindings = | |||
| 1924 | newGlobalScopeData(pc_->varScope()); | |||
| 1925 | if (!bindings) { | |||
| 1926 | return errorResult(); | |||
| 1927 | } | |||
| 1928 | globalsc->bindings = *bindings; | |||
| 1929 | ||||
| 1930 | return body; | |||
| 1931 | } | |||
| 1932 | ||||
| 1933 | template <typename Unit> | |||
| 1934 | FullParseHandler::ModuleNodeResult Parser<FullParseHandler, Unit>::moduleBody( | |||
| 1935 | ModuleSharedContext* modulesc) { | |||
| 1936 | MOZ_ASSERT(checkOptionsCalled_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(checkOptionsCalled_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(checkOptionsCalled_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("checkOptionsCalled_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1936); AnnotateMozCrashReason("MOZ_ASSERT" "(" "checkOptionsCalled_" ")"); do { *((volatile int*)__null) = 1936; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1937 | ||||
| 1938 | this->compilationState_.moduleMetadata = | |||
| 1939 | fc_->getAllocator()->template new_<StencilModuleMetadata>(); | |||
| 1940 | if (!this->compilationState_.moduleMetadata) { | |||
| 1941 | return errorResult(); | |||
| 1942 | } | |||
| 1943 | ||||
| 1944 | SourceParseContext modulepc(this, modulesc, nullptr); | |||
| 1945 | if (!modulepc.init()) { | |||
| 1946 | return errorResult(); | |||
| 1947 | } | |||
| 1948 | ||||
| 1949 | ParseContext::VarScope varScope(this); | |||
| 1950 | if (!varScope.init(pc_)) { | |||
| 1951 | return errorResult(); | |||
| 1952 | } | |||
| 1953 | ||||
| 1954 | ModuleNodeType moduleNode; | |||
| 1955 | MOZ_TRY_VAR(moduleNode, handler_.newModule(pos()))do { auto mozTryVarTempResult_ = (handler_.newModule(pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (moduleNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 1956 | ||||
| 1957 | AutoAwaitIsKeyword<FullParseHandler, Unit> awaitIsKeyword( | |||
| 1958 | this, AwaitIsModuleKeyword); | |||
| 1959 | ListNode* stmtList; | |||
| 1960 | MOZ_TRY_VAR(stmtList, statementList(YieldIsName))do { auto mozTryVarTempResult_ = (statementList(YieldIsName)) ; if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0)) ) { return mozTryVarTempResult_.propagateErr(); } (stmtList) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 1961 | ||||
| 1962 | MOZ_ASSERT(stmtList->isKind(ParseNodeKind::StatementList))do { static_assert( mozilla::detail::AssertionConditionType< decltype(stmtList->isKind(ParseNodeKind::StatementList))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(stmtList->isKind(ParseNodeKind::StatementList)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("stmtList->isKind(ParseNodeKind::StatementList)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 1962); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stmtList->isKind(ParseNodeKind::StatementList)" ")"); do { *((volatile int*)__null) = 1962; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1963 | moduleNode->setBody(&stmtList->template as<ListNode>()); | |||
| 1964 | ||||
| 1965 | if (pc_->isAsync()) { | |||
| 1966 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown::dot_generator_())) { | |||
| 1967 | return errorResult(); | |||
| 1968 | } | |||
| 1969 | ||||
| 1970 | if (!pc_->declareTopLevelDotGeneratorName()) { | |||
| 1971 | return errorResult(); | |||
| 1972 | } | |||
| 1973 | } | |||
| 1974 | ||||
| 1975 | TokenKind tt; | |||
| 1976 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 1977 | return errorResult(); | |||
| 1978 | } | |||
| 1979 | if (tt != TokenKind::Eof) { | |||
| 1980 | error(JSMSG_GARBAGE_AFTER_INPUT, "module", TokenKindToDesc(tt)); | |||
| 1981 | return errorResult(); | |||
| 1982 | } | |||
| 1983 | ||||
| 1984 | // Set the module to async if an await keyword was found at the top level. | |||
| 1985 | if (pc_->isAsync()) { | |||
| 1986 | pc_->sc()->asModuleContext()->builder.noteAsync( | |||
| 1987 | *this->compilationState_.moduleMetadata); | |||
| 1988 | } | |||
| 1989 | ||||
| 1990 | // Generate the Import/Export tables and store in CompilationState. | |||
| 1991 | if (!modulesc->builder.buildTables(*this->compilationState_.moduleMetadata)) { | |||
| 1992 | return errorResult(); | |||
| 1993 | } | |||
| 1994 | ||||
| 1995 | // Check exported local bindings exist and mark them as closed over. | |||
| 1996 | StencilModuleMetadata& moduleMetadata = | |||
| 1997 | *this->compilationState_.moduleMetadata; | |||
| 1998 | for (auto entry : moduleMetadata.localExportEntries) { | |||
| 1999 | DeclaredNamePtr p = modulepc.varScope().lookupDeclaredName(entry.localName); | |||
| 2000 | if (!p) { | |||
| 2001 | UniqueChars str = this->parserAtoms().toPrintableString(entry.localName); | |||
| 2002 | if (!str) { | |||
| 2003 | ReportOutOfMemory(this->fc_); | |||
| 2004 | return errorResult(); | |||
| 2005 | } | |||
| 2006 | ||||
| 2007 | errorNoOffset(JSMSG_MISSING_EXPORT, str.get()); | |||
| 2008 | return errorResult(); | |||
| 2009 | } | |||
| 2010 | ||||
| 2011 | p->value()->setClosedOver(); | |||
| 2012 | } | |||
| 2013 | ||||
| 2014 | // Reserve an environment slot for a "*namespace*" psuedo-binding and mark as | |||
| 2015 | // closed-over. We do not know until module linking if this will be used. | |||
| 2016 | if (!noteDeclaredName( | |||
| 2017 | TaggedParserAtomIndex::WellKnown::star_namespace_star_(), | |||
| 2018 | DeclarationKind::Const, pos())) { | |||
| 2019 | return errorResult(); | |||
| 2020 | } | |||
| 2021 | modulepc.varScope() | |||
| 2022 | .lookupDeclaredName( | |||
| 2023 | TaggedParserAtomIndex::WellKnown::star_namespace_star_()) | |||
| 2024 | ->value() | |||
| 2025 | ->setClosedOver(); | |||
| 2026 | ||||
| 2027 | if (options().deoptimizeModuleGlobalVars) { | |||
| 2028 | for (BindingIter bi = modulepc.varScope().bindings(pc_); bi; bi++) { | |||
| 2029 | bi.setClosedOver(); | |||
| 2030 | } | |||
| 2031 | } | |||
| 2032 | ||||
| 2033 | if (!CheckParseTree(this->fc_, alloc_, stmtList)) { | |||
| 2034 | return errorResult(); | |||
| 2035 | } | |||
| 2036 | ||||
| 2037 | ParseNode* node = stmtList; | |||
| 2038 | // Don't constant-fold inside "use asm" code, as this could create a parse | |||
| 2039 | // tree that doesn't type-check as asm.js. | |||
| 2040 | if (!pc_->useAsmOrInsideUseAsm()) { | |||
| 2041 | if (!FoldConstants(this->fc_, this->parserAtoms(), &node, &handler_)) { | |||
| 2042 | return errorResult(); | |||
| 2043 | } | |||
| 2044 | } | |||
| 2045 | stmtList = &node->as<ListNode>(); | |||
| 2046 | ||||
| 2047 | if (!this->setSourceMapInfo()) { | |||
| 2048 | return errorResult(); | |||
| 2049 | } | |||
| 2050 | ||||
| 2051 | // Private names not lexically defined must trigger a syntax error. | |||
| 2052 | if (!checkForUndefinedPrivateFields()) { | |||
| 2053 | return errorResult(); | |||
| 2054 | } | |||
| 2055 | ||||
| 2056 | if (!propagateFreeNamesAndMarkClosedOverBindings(modulepc.varScope())) { | |||
| 2057 | return errorResult(); | |||
| 2058 | } | |||
| 2059 | ||||
| 2060 | Maybe<ModuleScope::ParserData*> bindings = | |||
| 2061 | newModuleScopeData(modulepc.varScope()); | |||
| 2062 | if (!bindings) { | |||
| 2063 | return errorResult(); | |||
| 2064 | } | |||
| 2065 | ||||
| 2066 | modulesc->bindings = *bindings; | |||
| 2067 | return moduleNode; | |||
| 2068 | } | |||
| 2069 | ||||
| 2070 | template <typename Unit> | |||
| 2071 | SyntaxParseHandler::ModuleNodeResult | |||
| 2072 | Parser<SyntaxParseHandler, Unit>::moduleBody(ModuleSharedContext* modulesc) { | |||
| 2073 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2073); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 2073; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 2074 | return errorResult(); | |||
| 2075 | } | |||
| 2076 | ||||
| 2077 | template <class ParseHandler> | |||
| 2078 | typename ParseHandler::NameNodeResult | |||
| 2079 | PerHandlerParser<ParseHandler>::newInternalDotName(TaggedParserAtomIndex name) { | |||
| 2080 | NameNodeType nameNode; | |||
| 2081 | MOZ_TRY_VAR(nameNode, newName(name))do { auto mozTryVarTempResult_ = (newName(name)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (nameNode) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 2082 | if (!noteUsedName(name)) { | |||
| 2083 | return errorResult(); | |||
| 2084 | } | |||
| 2085 | return nameNode; | |||
| 2086 | } | |||
| 2087 | ||||
| 2088 | template <class ParseHandler> | |||
| 2089 | typename ParseHandler::NameNodeResult | |||
| 2090 | PerHandlerParser<ParseHandler>::newThisName() { | |||
| 2091 | return newInternalDotName(TaggedParserAtomIndex::WellKnown::dot_this_()); | |||
| 2092 | } | |||
| 2093 | ||||
| 2094 | template <class ParseHandler> | |||
| 2095 | typename ParseHandler::NameNodeResult | |||
| 2096 | PerHandlerParser<ParseHandler>::newNewTargetName() { | |||
| 2097 | return newInternalDotName(TaggedParserAtomIndex::WellKnown::dot_newTarget_()); | |||
| 2098 | } | |||
| 2099 | ||||
| 2100 | template <class ParseHandler> | |||
| 2101 | typename ParseHandler::NameNodeResult | |||
| 2102 | PerHandlerParser<ParseHandler>::newDotGeneratorName() { | |||
| 2103 | return newInternalDotName(TaggedParserAtomIndex::WellKnown::dot_generator_()); | |||
| 2104 | } | |||
| 2105 | ||||
| 2106 | template <class ParseHandler> | |||
| 2107 | bool PerHandlerParser<ParseHandler>::finishFunctionScopes( | |||
| 2108 | bool isStandaloneFunction) { | |||
| 2109 | FunctionBox* funbox = pc_->functionBox(); | |||
| 2110 | ||||
| 2111 | if (funbox->hasParameterExprs) { | |||
| 2112 | if (!propagateFreeNamesAndMarkClosedOverBindings(pc_->functionScope())) { | |||
| 2113 | return false; | |||
| 2114 | } | |||
| 2115 | ||||
| 2116 | // Functions with parameter expressions utilize the FunctionScope for vars | |||
| 2117 | // generated by sloppy-direct-evals, as well as arguments (which are | |||
| 2118 | // lexicals bindings). If the function body has var bindings (or has a | |||
| 2119 | // sloppy-direct-eval that might), then an extra VarScope must be created | |||
| 2120 | // for them. | |||
| 2121 | if (VarScopeHasBindings(pc_) || | |||
| 2122 | funbox->needsExtraBodyVarEnvironmentRegardlessOfBindings()) { | |||
| 2123 | funbox->setFunctionHasExtraBodyVarScope(); | |||
| 2124 | } | |||
| 2125 | } | |||
| 2126 | ||||
| 2127 | // See: JSFunction::needsCallObject() | |||
| 2128 | if (FunctionScopeHasClosedOverBindings(pc_) || | |||
| 2129 | funbox->needsCallObjectRegardlessOfBindings()) { | |||
| 2130 | funbox->setNeedsFunctionEnvironmentObjects(); | |||
| 2131 | } | |||
| 2132 | ||||
| 2133 | if (funbox->isNamedLambda() && !isStandaloneFunction) { | |||
| 2134 | if (!propagateFreeNamesAndMarkClosedOverBindings(pc_->namedLambdaScope())) { | |||
| 2135 | return false; | |||
| 2136 | } | |||
| 2137 | ||||
| 2138 | // See: JSFunction::needsNamedLambdaEnvironment() | |||
| 2139 | if (LexicalScopeHasClosedOverBindings(pc_, pc_->namedLambdaScope())) { | |||
| 2140 | funbox->setNeedsFunctionEnvironmentObjects(); | |||
| 2141 | } | |||
| 2142 | } | |||
| 2143 | ||||
| 2144 | return true; | |||
| 2145 | } | |||
| 2146 | ||||
| 2147 | template <> | |||
| 2148 | bool PerHandlerParser<FullParseHandler>::finishFunction( | |||
| 2149 | bool isStandaloneFunction /* = false */) { | |||
| 2150 | if (!finishFunctionScopes(isStandaloneFunction)) { | |||
| 2151 | return false; | |||
| 2152 | } | |||
| 2153 | ||||
| 2154 | FunctionBox* funbox = pc_->functionBox(); | |||
| 2155 | ScriptStencil& script = funbox->functionStencil(); | |||
| 2156 | ||||
| 2157 | if (funbox->isInterpreted()) { | |||
| 2158 | // BCE will need to generate bytecode for this. | |||
| 2159 | funbox->emitBytecode = true; | |||
| 2160 | this->compilationState_.nonLazyFunctionCount++; | |||
| 2161 | } | |||
| 2162 | ||||
| 2163 | bool hasParameterExprs = funbox->hasParameterExprs; | |||
| 2164 | ||||
| 2165 | if (hasParameterExprs) { | |||
| 2166 | Maybe<VarScope::ParserData*> bindings = newVarScopeData(pc_->varScope()); | |||
| 2167 | if (!bindings) { | |||
| 2168 | return false; | |||
| 2169 | } | |||
| 2170 | funbox->setExtraVarScopeBindings(*bindings); | |||
| 2171 | ||||
| 2172 | MOZ_ASSERT(bool(*bindings) == VarScopeHasBindings(pc_))do { static_assert( mozilla::detail::AssertionConditionType< decltype(bool(*bindings) == VarScopeHasBindings(pc_))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(bool(*bindings) == VarScopeHasBindings(pc_)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("bool(*bindings) == VarScopeHasBindings(pc_)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2172); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bool(*bindings) == VarScopeHasBindings(pc_)" ")"); do { *((volatile int*)__null) = 2172; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2173 | MOZ_ASSERT_IF(!funbox->needsExtraBodyVarEnvironmentRegardlessOfBindings(),do { if (!funbox->needsExtraBodyVarEnvironmentRegardlessOfBindings ()) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(bool(*bindings) == funbox->functionHasExtraBodyVarScope ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(bool(*bindings) == funbox->functionHasExtraBodyVarScope ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("bool(*bindings) == funbox->functionHasExtraBodyVarScope()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2174); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bool(*bindings) == funbox->functionHasExtraBodyVarScope()" ")"); do { *((volatile int*)__null) = 2174; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 2174 | bool(*bindings) == funbox->functionHasExtraBodyVarScope())do { if (!funbox->needsExtraBodyVarEnvironmentRegardlessOfBindings ()) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(bool(*bindings) == funbox->functionHasExtraBodyVarScope ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(bool(*bindings) == funbox->functionHasExtraBodyVarScope ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("bool(*bindings) == funbox->functionHasExtraBodyVarScope()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2174); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bool(*bindings) == funbox->functionHasExtraBodyVarScope()" ")"); do { *((volatile int*)__null) = 2174; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 2175 | } | |||
| 2176 | ||||
| 2177 | { | |||
| 2178 | Maybe<FunctionScope::ParserData*> bindings = | |||
| 2179 | newFunctionScopeData(pc_->functionScope(), hasParameterExprs); | |||
| 2180 | if (!bindings) { | |||
| 2181 | return false; | |||
| 2182 | } | |||
| 2183 | funbox->setFunctionScopeBindings(*bindings); | |||
| 2184 | } | |||
| 2185 | ||||
| 2186 | if (funbox->isNamedLambda() && !isStandaloneFunction) { | |||
| 2187 | Maybe<LexicalScope::ParserData*> bindings = | |||
| 2188 | newLexicalScopeData(pc_->namedLambdaScope()); | |||
| 2189 | if (!bindings) { | |||
| 2190 | return false; | |||
| 2191 | } | |||
| 2192 | funbox->setNamedLambdaBindings(*bindings); | |||
| 2193 | } | |||
| 2194 | ||||
| 2195 | funbox->finishScriptFlags(); | |||
| 2196 | funbox->copyFunctionFields(script); | |||
| 2197 | ||||
| 2198 | if (this->compilationState_.isInitialStencil()) { | |||
| 2199 | ScriptStencilExtra& scriptExtra = funbox->functionExtraStencil(); | |||
| 2200 | funbox->copyFunctionExtraFields(scriptExtra); | |||
| 2201 | funbox->copyScriptExtraFields(scriptExtra); | |||
| 2202 | } | |||
| 2203 | ||||
| 2204 | return true; | |||
| 2205 | } | |||
| 2206 | ||||
| 2207 | template <> | |||
| 2208 | bool PerHandlerParser<SyntaxParseHandler>::finishFunction( | |||
| 2209 | bool isStandaloneFunction /* = false */) { | |||
| 2210 | // The BaseScript for a lazily parsed function needs to know its set of | |||
| 2211 | // free variables and inner functions so that when it is fully parsed, we | |||
| 2212 | // can skip over any already syntax parsed inner functions and still | |||
| 2213 | // retain correct scope information. | |||
| 2214 | ||||
| 2215 | if (!finishFunctionScopes(isStandaloneFunction)) { | |||
| 2216 | return false; | |||
| 2217 | } | |||
| 2218 | ||||
| 2219 | FunctionBox* funbox = pc_->functionBox(); | |||
| 2220 | ScriptStencil& script = funbox->functionStencil(); | |||
| 2221 | ||||
| 2222 | funbox->finishScriptFlags(); | |||
| 2223 | funbox->copyFunctionFields(script); | |||
| 2224 | ||||
| 2225 | ScriptStencilExtra& scriptExtra = funbox->functionExtraStencil(); | |||
| 2226 | funbox->copyFunctionExtraFields(scriptExtra); | |||
| 2227 | funbox->copyScriptExtraFields(scriptExtra); | |||
| 2228 | ||||
| 2229 | // Elide nullptr sentinels from end of binding list. These are inserted for | |||
| 2230 | // each scope regardless of if any bindings are actually closed over. | |||
| 2231 | { | |||
| 2232 | AtomVector& closedOver = pc_->closedOverBindingsForLazy(); | |||
| 2233 | while (!closedOver.empty() && !closedOver.back()) { | |||
| 2234 | closedOver.popBack(); | |||
| 2235 | } | |||
| 2236 | } | |||
| 2237 | ||||
| 2238 | // Check if we will overflow the `ngcthings` field later. | |||
| 2239 | mozilla::CheckedUint32 ngcthings = | |||
| 2240 | mozilla::CheckedUint32(pc_->innerFunctionIndexesForLazy.length()) + | |||
| 2241 | mozilla::CheckedUint32(pc_->closedOverBindingsForLazy().length()); | |||
| 2242 | if (!ngcthings.isValid()) { | |||
| 2243 | ReportAllocationOverflow(fc_); | |||
| 2244 | return false; | |||
| 2245 | } | |||
| 2246 | ||||
| 2247 | // If there are no script-things, we can return early without allocating. | |||
| 2248 | if (ngcthings.value() == 0) { | |||
| 2249 | MOZ_ASSERT(!script.hasGCThings())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!script.hasGCThings())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!script.hasGCThings()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("!script.hasGCThings()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2249); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!script.hasGCThings()" ")"); do { *((volatile int*)__null) = 2249; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2250 | return true; | |||
| 2251 | } | |||
| 2252 | ||||
| 2253 | TaggedScriptThingIndex* cursor = nullptr; | |||
| 2254 | if (!this->compilationState_.allocateGCThingsUninitialized( | |||
| 2255 | fc_, funbox->index(), ngcthings.value(), &cursor)) { | |||
| 2256 | return false; | |||
| 2257 | } | |||
| 2258 | ||||
| 2259 | // Copy inner-function and closed-over-binding info for the stencil. The order | |||
| 2260 | // is important here. We emit functions first, followed by the bindings info. | |||
| 2261 | // The bindings list uses nullptr as delimiter to separates the bindings per | |||
| 2262 | // scope. | |||
| 2263 | // | |||
| 2264 | // See: FullParseHandler::nextLazyInnerFunction(), | |||
| 2265 | // FullParseHandler::nextLazyClosedOverBinding() | |||
| 2266 | for (const ScriptIndex& index : pc_->innerFunctionIndexesForLazy) { | |||
| 2267 | void* raw = &(*cursor++); | |||
| 2268 | new (raw) TaggedScriptThingIndex(index); | |||
| 2269 | } | |||
| 2270 | for (auto binding : pc_->closedOverBindingsForLazy()) { | |||
| 2271 | void* raw = &(*cursor++); | |||
| 2272 | if (binding) { | |||
| 2273 | this->parserAtoms().markUsedByStencil(binding, ParserAtom::Atomize::Yes); | |||
| 2274 | new (raw) TaggedScriptThingIndex(binding); | |||
| 2275 | } else { | |||
| 2276 | new (raw) TaggedScriptThingIndex(); | |||
| 2277 | } | |||
| 2278 | } | |||
| 2279 | ||||
| 2280 | return true; | |||
| 2281 | } | |||
| 2282 | ||||
| 2283 | static YieldHandling GetYieldHandling(GeneratorKind generatorKind) { | |||
| 2284 | if (generatorKind == GeneratorKind::NotGenerator) { | |||
| 2285 | return YieldIsName; | |||
| 2286 | } | |||
| 2287 | return YieldIsKeyword; | |||
| 2288 | } | |||
| 2289 | ||||
| 2290 | static AwaitHandling GetAwaitHandling(FunctionAsyncKind asyncKind) { | |||
| 2291 | if (asyncKind == FunctionAsyncKind::SyncFunction) { | |||
| 2292 | return AwaitIsName; | |||
| 2293 | } | |||
| 2294 | return AwaitIsKeyword; | |||
| 2295 | } | |||
| 2296 | ||||
| 2297 | static FunctionFlags InitialFunctionFlags(FunctionSyntaxKind kind, | |||
| 2298 | GeneratorKind generatorKind, | |||
| 2299 | FunctionAsyncKind asyncKind, | |||
| 2300 | bool isSelfHosting) { | |||
| 2301 | FunctionFlags flags = {}; | |||
| 2302 | ||||
| 2303 | switch (kind) { | |||
| 2304 | case FunctionSyntaxKind::Expression: | |||
| 2305 | flags = (generatorKind == GeneratorKind::NotGenerator && | |||
| 2306 | asyncKind == FunctionAsyncKind::SyncFunction | |||
| 2307 | ? FunctionFlags::INTERPRETED_LAMBDA | |||
| 2308 | : FunctionFlags::INTERPRETED_LAMBDA_GENERATOR_OR_ASYNC); | |||
| 2309 | break; | |||
| 2310 | case FunctionSyntaxKind::Arrow: | |||
| 2311 | flags = FunctionFlags::INTERPRETED_LAMBDA_ARROW; | |||
| 2312 | break; | |||
| 2313 | case FunctionSyntaxKind::Method: | |||
| 2314 | case FunctionSyntaxKind::FieldInitializer: | |||
| 2315 | case FunctionSyntaxKind::StaticClassBlock: | |||
| 2316 | flags = FunctionFlags::INTERPRETED_METHOD; | |||
| 2317 | break; | |||
| 2318 | case FunctionSyntaxKind::ClassConstructor: | |||
| 2319 | case FunctionSyntaxKind::DerivedClassConstructor: | |||
| 2320 | flags = FunctionFlags::INTERPRETED_CLASS_CTOR; | |||
| 2321 | break; | |||
| 2322 | case FunctionSyntaxKind::Getter: | |||
| 2323 | flags = FunctionFlags::INTERPRETED_GETTER; | |||
| 2324 | break; | |||
| 2325 | case FunctionSyntaxKind::Setter: | |||
| 2326 | flags = FunctionFlags::INTERPRETED_SETTER; | |||
| 2327 | break; | |||
| 2328 | default: | |||
| 2329 | MOZ_ASSERT(kind == FunctionSyntaxKind::Statement)do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == FunctionSyntaxKind::Statement)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(kind == FunctionSyntaxKind::Statement))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == FunctionSyntaxKind::Statement" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2329); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == FunctionSyntaxKind::Statement" ")"); do { *((volatile int*)__null) = 2329; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2330 | flags = (generatorKind == GeneratorKind::NotGenerator && | |||
| 2331 | asyncKind == FunctionAsyncKind::SyncFunction | |||
| 2332 | ? FunctionFlags::INTERPRETED_NORMAL | |||
| 2333 | : FunctionFlags::INTERPRETED_GENERATOR_OR_ASYNC); | |||
| 2334 | } | |||
| 2335 | ||||
| 2336 | if (isSelfHosting) { | |||
| 2337 | flags.setIsSelfHostedBuiltin(); | |||
| 2338 | } | |||
| 2339 | ||||
| 2340 | return flags; | |||
| 2341 | } | |||
| 2342 | ||||
| 2343 | template <typename Unit> | |||
| 2344 | FullParseHandler::FunctionNodeResult | |||
| 2345 | Parser<FullParseHandler, Unit>::standaloneFunction( | |||
| 2346 | const Maybe<uint32_t>& parameterListEnd, FunctionSyntaxKind syntaxKind, | |||
| 2347 | GeneratorKind generatorKind, FunctionAsyncKind asyncKind, | |||
| 2348 | Directives inheritedDirectives, Directives* newDirectives) { | |||
| 2349 | MOZ_ASSERT(checkOptionsCalled_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(checkOptionsCalled_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(checkOptionsCalled_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("checkOptionsCalled_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2349); AnnotateMozCrashReason("MOZ_ASSERT" "(" "checkOptionsCalled_" ")"); do { *((volatile int*)__null) = 2349; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2350 | // Skip prelude. | |||
| 2351 | TokenKind tt; | |||
| 2352 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 2353 | return errorResult(); | |||
| 2354 | } | |||
| 2355 | if (asyncKind == FunctionAsyncKind::AsyncFunction) { | |||
| 2356 | MOZ_ASSERT(tt == TokenKind::Async)do { static_assert( mozilla::detail::AssertionConditionType< decltype(tt == TokenKind::Async)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(tt == TokenKind::Async))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("tt == TokenKind::Async" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2356); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tt == TokenKind::Async" ")"); do { *((volatile int*)__null) = 2356; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2357 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 2358 | return errorResult(); | |||
| 2359 | } | |||
| 2360 | } | |||
| 2361 | MOZ_ASSERT(tt == TokenKind::Function)do { static_assert( mozilla::detail::AssertionConditionType< decltype(tt == TokenKind::Function)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(tt == TokenKind::Function))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("tt == TokenKind::Function" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2361); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tt == TokenKind::Function" ")"); do { *((volatile int*)__null) = 2361; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2362 | ||||
| 2363 | if (!tokenStream.getToken(&tt)) { | |||
| 2364 | return errorResult(); | |||
| 2365 | } | |||
| 2366 | if (generatorKind == GeneratorKind::Generator) { | |||
| 2367 | MOZ_ASSERT(tt == TokenKind::Mul)do { static_assert( mozilla::detail::AssertionConditionType< decltype(tt == TokenKind::Mul)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(tt == TokenKind::Mul))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("tt == TokenKind::Mul" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2367); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tt == TokenKind::Mul" ")"); do { *((volatile int*)__null) = 2367; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2368 | if (!tokenStream.getToken(&tt)) { | |||
| 2369 | return errorResult(); | |||
| 2370 | } | |||
| 2371 | } | |||
| 2372 | ||||
| 2373 | // Skip function name, if present. | |||
| 2374 | TaggedParserAtomIndex explicitName; | |||
| 2375 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 2376 | explicitName = anyChars.currentName(); | |||
| 2377 | } else { | |||
| 2378 | anyChars.ungetToken(); | |||
| 2379 | } | |||
| 2380 | ||||
| 2381 | FunctionNodeType funNode; | |||
| 2382 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, pos()))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 2383 | ||||
| 2384 | ParamsBodyNodeType argsbody; | |||
| 2385 | MOZ_TRY_VAR(argsbody, handler_.newParamsBody(pos()))do { auto mozTryVarTempResult_ = (handler_.newParamsBody(pos( ))); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (argsbody ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 2386 | funNode->setBody(argsbody); | |||
| 2387 | ||||
| 2388 | bool isSelfHosting = options().selfHostingMode; | |||
| 2389 | FunctionFlags flags = | |||
| 2390 | InitialFunctionFlags(syntaxKind, generatorKind, asyncKind, isSelfHosting); | |||
| 2391 | FunctionBox* funbox = | |||
| 2392 | newFunctionBox(funNode, explicitName, flags, /* toStringStart = */ 0, | |||
| 2393 | inheritedDirectives, generatorKind, asyncKind); | |||
| 2394 | if (!funbox) { | |||
| 2395 | return errorResult(); | |||
| 2396 | } | |||
| 2397 | ||||
| 2398 | // Function is not syntactically part of another script. | |||
| 2399 | MOZ_ASSERT(funbox->index() == CompilationStencil::TopLevelIndex)do { static_assert( mozilla::detail::AssertionConditionType< decltype(funbox->index() == CompilationStencil::TopLevelIndex )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(funbox->index() == CompilationStencil::TopLevelIndex ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "funbox->index() == CompilationStencil::TopLevelIndex", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2399); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funbox->index() == CompilationStencil::TopLevelIndex" ")"); do { *((volatile int*)__null) = 2399; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2400 | ||||
| 2401 | funbox->initStandalone(this->compilationState_.scopeContext, syntaxKind); | |||
| 2402 | ||||
| 2403 | SourceParseContext funpc(this, funbox, newDirectives); | |||
| 2404 | if (!funpc.init()) { | |||
| 2405 | return errorResult(); | |||
| 2406 | } | |||
| 2407 | ||||
| 2408 | YieldHandling yieldHandling = GetYieldHandling(generatorKind); | |||
| 2409 | AwaitHandling awaitHandling = GetAwaitHandling(asyncKind); | |||
| 2410 | AutoAwaitIsKeyword<FullParseHandler, Unit> awaitIsKeyword(this, | |||
| 2411 | awaitHandling); | |||
| 2412 | if (!functionFormalParametersAndBody(InAllowed, yieldHandling, &funNode, | |||
| 2413 | syntaxKind, parameterListEnd, | |||
| 2414 | /* isStandaloneFunction = */ true)) { | |||
| 2415 | return errorResult(); | |||
| 2416 | } | |||
| 2417 | ||||
| 2418 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 2419 | return errorResult(); | |||
| 2420 | } | |||
| 2421 | if (tt != TokenKind::Eof) { | |||
| 2422 | error(JSMSG_GARBAGE_AFTER_INPUT, "function body", TokenKindToDesc(tt)); | |||
| 2423 | return errorResult(); | |||
| 2424 | } | |||
| 2425 | ||||
| 2426 | if (!CheckParseTree(this->fc_, alloc_, funNode)) { | |||
| 2427 | return errorResult(); | |||
| 2428 | } | |||
| 2429 | ||||
| 2430 | ParseNode* node = funNode; | |||
| 2431 | // Don't constant-fold inside "use asm" code, as this could create a parse | |||
| 2432 | // tree that doesn't type-check as asm.js. | |||
| 2433 | if (!pc_->useAsmOrInsideUseAsm()) { | |||
| 2434 | if (!FoldConstants(this->fc_, this->parserAtoms(), &node, &handler_)) { | |||
| 2435 | return errorResult(); | |||
| 2436 | } | |||
| 2437 | } | |||
| 2438 | funNode = &node->as<FunctionNode>(); | |||
| 2439 | ||||
| 2440 | if (!checkForUndefinedPrivateFields(nullptr)) { | |||
| 2441 | return errorResult(); | |||
| 2442 | } | |||
| 2443 | ||||
| 2444 | if (!this->setSourceMapInfo()) { | |||
| 2445 | return errorResult(); | |||
| 2446 | } | |||
| 2447 | ||||
| 2448 | return funNode; | |||
| 2449 | } | |||
| 2450 | ||||
| 2451 | template <class ParseHandler, typename Unit> | |||
| 2452 | typename ParseHandler::LexicalScopeNodeResult | |||
| 2453 | GeneralParser<ParseHandler, Unit>::functionBody(InHandling inHandling, | |||
| 2454 | YieldHandling yieldHandling, | |||
| 2455 | FunctionSyntaxKind kind, | |||
| 2456 | FunctionBodyType type) { | |||
| 2457 | MOZ_ASSERT(pc_->isFunctionBox())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isFunctionBox())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isFunctionBox()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isFunctionBox()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2457); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isFunctionBox()" ")"); do { *((volatile int*)__null) = 2457; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2458 | ||||
| 2459 | #ifdef DEBUG1 | |||
| 2460 | uint32_t startYieldOffset = pc_->lastYieldOffset; | |||
| 2461 | #endif | |||
| 2462 | ||||
| 2463 | Node body; | |||
| 2464 | if (type == StatementListBody) { | |||
| 2465 | bool inheritedStrict = pc_->sc()->strict(); | |||
| 2466 | MOZ_TRY_VAR(body, statementList(yieldHandling))do { auto mozTryVarTempResult_ = (statementList(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 2467 | ||||
| 2468 | // When we transitioned from non-strict to strict mode, we need to | |||
| 2469 | // validate that all parameter names are valid strict mode names. | |||
| 2470 | if (!inheritedStrict && pc_->sc()->strict()) { | |||
| 2471 | MOZ_ASSERT(pc_->sc()->hasExplicitUseStrict(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->sc()->hasExplicitUseStrict())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(pc_->sc()->hasExplicitUseStrict()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->sc()->hasExplicitUseStrict()" " (" "strict mode should only change when a 'use strict' directive " "is present" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->sc()->hasExplicitUseStrict()" ") (" "strict mode should only change when a 'use strict' directive " "is present" ")"); do { *((volatile int*)__null) = 2473; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 2472 | "strict mode should only change when a 'use strict' directive "do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->sc()->hasExplicitUseStrict())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(pc_->sc()->hasExplicitUseStrict()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->sc()->hasExplicitUseStrict()" " (" "strict mode should only change when a 'use strict' directive " "is present" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->sc()->hasExplicitUseStrict()" ") (" "strict mode should only change when a 'use strict' directive " "is present" ")"); do { *((volatile int*)__null) = 2473; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 2473 | "is present")do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->sc()->hasExplicitUseStrict())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(pc_->sc()->hasExplicitUseStrict()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->sc()->hasExplicitUseStrict()" " (" "strict mode should only change when a 'use strict' directive " "is present" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->sc()->hasExplicitUseStrict()" ") (" "strict mode should only change when a 'use strict' directive " "is present" ")"); do { *((volatile int*)__null) = 2473; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 2474 | if (!hasValidSimpleStrictParameterNames()) { | |||
| 2475 | // Request that this function be reparsed as strict to report | |||
| 2476 | // the invalid parameter name at the correct source location. | |||
| 2477 | pc_->newDirectives->setStrict(); | |||
| 2478 | return errorResult(); | |||
| 2479 | } | |||
| 2480 | } | |||
| 2481 | } else { | |||
| 2482 | MOZ_ASSERT(type == ExpressionBody)do { static_assert( mozilla::detail::AssertionConditionType< decltype(type == ExpressionBody)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(type == ExpressionBody))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("type == ExpressionBody" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2482); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type == ExpressionBody" ")"); do { *((volatile int*)__null) = 2482; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2483 | ||||
| 2484 | // Async functions are implemented as generators, and generators are | |||
| 2485 | // assumed to be statement lists, to prepend initial `yield`. | |||
| 2486 | ListNodeType stmtList = null(); | |||
| 2487 | if (pc_->isAsync()) { | |||
| 2488 | MOZ_TRY_VAR(stmtList, handler_.newStatementList(pos()))do { auto mozTryVarTempResult_ = (handler_.newStatementList(pos ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (stmtList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 2489 | } | |||
| 2490 | ||||
| 2491 | Node kid; | |||
| 2492 | MOZ_TRY_VAR(kid,do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 2493 | assignExpr(inHandling, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 2494 | ||||
| 2495 | MOZ_TRY_VAR(body, handler_.newExpressionBody(kid))do { auto mozTryVarTempResult_ = (handler_.newExpressionBody( kid)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()) , 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 2496 | ||||
| 2497 | if (pc_->isAsync()) { | |||
| 2498 | handler_.addStatementToList(stmtList, body); | |||
| 2499 | body = stmtList; | |||
| 2500 | } | |||
| 2501 | } | |||
| 2502 | ||||
| 2503 | MOZ_ASSERT_IF(!pc_->isGenerator() && !pc_->isAsync(),do { if (!pc_->isGenerator() && !pc_->isAsync() ) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(pc_->lastYieldOffset == startYieldOffset)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pc_->lastYieldOffset == startYieldOffset))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->lastYieldOffset == startYieldOffset" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2504); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->lastYieldOffset == startYieldOffset" ")"); do { *((volatile int*)__null) = 2504; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 2504 | pc_->lastYieldOffset == startYieldOffset)do { if (!pc_->isGenerator() && !pc_->isAsync() ) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(pc_->lastYieldOffset == startYieldOffset)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pc_->lastYieldOffset == startYieldOffset))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->lastYieldOffset == startYieldOffset" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2504); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->lastYieldOffset == startYieldOffset" ")"); do { *((volatile int*)__null) = 2504; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 2505 | MOZ_ASSERT_IF(pc_->isGenerator(), kind != FunctionSyntaxKind::Arrow)do { if (pc_->isGenerator()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(kind != FunctionSyntaxKind ::Arrow)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(kind != FunctionSyntaxKind::Arrow))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind != FunctionSyntaxKind::Arrow" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2505); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind != FunctionSyntaxKind::Arrow" ")"); do { *((volatile int*)__null) = 2505; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 2506 | MOZ_ASSERT_IF(pc_->isGenerator(), type == StatementListBody)do { if (pc_->isGenerator()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(type == StatementListBody )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(type == StatementListBody))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("type == StatementListBody", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2506); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type == StatementListBody" ")"); do { *((volatile int*)__null) = 2506; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 2507 | ||||
| 2508 | if (pc_->needsDotGeneratorName()) { | |||
| 2509 | MOZ_ASSERT_IF(!pc_->isAsync(), type == StatementListBody)do { if (!pc_->isAsync()) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(type == StatementListBody )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(type == StatementListBody))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("type == StatementListBody", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2509); AnnotateMozCrashReason("MOZ_ASSERT" "(" "type == StatementListBody" ")"); do { *((volatile int*)__null) = 2509; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 2510 | if (!pc_->declareDotGeneratorName()) { | |||
| 2511 | return errorResult(); | |||
| 2512 | } | |||
| 2513 | if (pc_->isGenerator()) { | |||
| 2514 | NameNodeType generator; | |||
| 2515 | MOZ_TRY_VAR(generator, newDotGeneratorName())do { auto mozTryVarTempResult_ = (newDotGeneratorName()); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (generator) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 2516 | if (!handler_.prependInitialYield(handler_.asListNode(body), generator)) { | |||
| 2517 | return errorResult(); | |||
| 2518 | } | |||
| 2519 | } | |||
| 2520 | } | |||
| 2521 | ||||
| 2522 | if (pc_->numberOfArgumentsNames > 0 || kind == FunctionSyntaxKind::Arrow) { | |||
| 2523 | MOZ_ASSERT(pc_->isFunctionBox())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isFunctionBox())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isFunctionBox()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isFunctionBox()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2523); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isFunctionBox()" ")"); do { *((volatile int*)__null) = 2523; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2524 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
| 2525 | } | |||
| 2526 | ||||
| 2527 | // Declare the 'arguments', 'this', and 'new.target' bindings if necessary | |||
| 2528 | // before finishing up the scope so these special bindings get marked as | |||
| 2529 | // closed over if necessary. Arrow functions don't have these bindings. | |||
| 2530 | if (kind != FunctionSyntaxKind::Arrow) { | |||
| 2531 | bool canSkipLazyClosedOverBindings = handler_.reuseClosedOverBindings(); | |||
| 2532 | if (!pc_->declareFunctionArgumentsObject(usedNames_, | |||
| 2533 | canSkipLazyClosedOverBindings)) { | |||
| 2534 | return errorResult(); | |||
| 2535 | } | |||
| 2536 | if (!pc_->declareFunctionThis(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 2537 | return errorResult(); | |||
| 2538 | } | |||
| 2539 | if (!pc_->declareNewTarget(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 2540 | return errorResult(); | |||
| 2541 | } | |||
| 2542 | } | |||
| 2543 | ||||
| 2544 | return finishLexicalScope(pc_->varScope(), body, ScopeKind::FunctionLexical); | |||
| 2545 | } | |||
| 2546 | ||||
| 2547 | template <class ParseHandler, typename Unit> | |||
| 2548 | bool GeneralParser<ParseHandler, Unit>::matchOrInsertSemicolon( | |||
| 2549 | Modifier modifier /* = TokenStream::SlashIsRegExp */) { | |||
| 2550 | TokenKind tt = TokenKind::Eof; | |||
| 2551 | if (!tokenStream.peekTokenSameLine(&tt, modifier)) { | |||
| 2552 | return false; | |||
| 2553 | } | |||
| 2554 | if (tt != TokenKind::Eof && tt != TokenKind::Eol && tt != TokenKind::Semi && | |||
| 2555 | tt != TokenKind::RightCurly) { | |||
| 2556 | /* | |||
| 2557 | * When current token is `await` and it's outside of async function, | |||
| 2558 | * it's possibly intended to be an await expression. | |||
| 2559 | * | |||
| 2560 | * await f(); | |||
| 2561 | * ^ | |||
| 2562 | * | | |||
| 2563 | * tried to insert semicolon here | |||
| 2564 | * | |||
| 2565 | * Detect this situation and throw an understandable error. Otherwise | |||
| 2566 | * we'd throw a confusing "unexpected token: (unexpected token)" error. | |||
| 2567 | */ | |||
| 2568 | if (!pc_->isAsync() && anyChars.currentToken().type == TokenKind::Await) { | |||
| 2569 | error(JSMSG_AWAIT_OUTSIDE_ASYNC_OR_MODULE); | |||
| 2570 | return false; | |||
| 2571 | } | |||
| 2572 | if (!yieldExpressionsSupported() && | |||
| 2573 | anyChars.currentToken().type == TokenKind::Yield) { | |||
| 2574 | error(JSMSG_YIELD_OUTSIDE_GENERATOR); | |||
| 2575 | return false; | |||
| 2576 | } | |||
| 2577 | ||||
| 2578 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 2579 | if (!this->pc_->isUsingSyntaxAllowed() && | |||
| 2580 | anyChars.currentToken().type == TokenKind::Using) { | |||
| 2581 | error(JSMSG_USING_OUTSIDE_BLOCK_OR_MODULE); | |||
| 2582 | return false; | |||
| 2583 | } | |||
| 2584 | #endif | |||
| 2585 | ||||
| 2586 | /* Advance the scanner for proper error location reporting. */ | |||
| 2587 | tokenStream.consumeKnownToken(tt, modifier); | |||
| 2588 | error(JSMSG_UNEXPECTED_TOKEN_NO_EXPECT, TokenKindToDesc(tt)); | |||
| 2589 | return false; | |||
| 2590 | } | |||
| 2591 | bool matched; | |||
| 2592 | return tokenStream.matchToken(&matched, TokenKind::Semi, modifier); | |||
| 2593 | } | |||
| 2594 | ||||
| 2595 | bool ParserBase::leaveInnerFunction(ParseContext* outerpc) { | |||
| 2596 | MOZ_ASSERT(pc_ != outerpc)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_ != outerpc)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_ != outerpc))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_ != outerpc" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2596); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_ != outerpc" ")"); do { *((volatile int*)__null) = 2596; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2597 | ||||
| 2598 | MOZ_ASSERT_IF(outerpc->isFunctionBox(),do { if (outerpc->isFunctionBox()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(outerpc->functionBox ()->index() < pc_->functionBox()->index())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(outerpc->functionBox()->index() < pc_->functionBox ()->index()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("outerpc->functionBox()->index() < pc_->functionBox()->index()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2599); AnnotateMozCrashReason("MOZ_ASSERT" "(" "outerpc->functionBox()->index() < pc_->functionBox()->index()" ")"); do { *((volatile int*)__null) = 2599; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 2599 | outerpc->functionBox()->index() < pc_->functionBox()->index())do { if (outerpc->isFunctionBox()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(outerpc->functionBox ()->index() < pc_->functionBox()->index())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(outerpc->functionBox()->index() < pc_->functionBox ()->index()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("outerpc->functionBox()->index() < pc_->functionBox()->index()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2599); AnnotateMozCrashReason("MOZ_ASSERT" "(" "outerpc->functionBox()->index() < pc_->functionBox()->index()" ")"); do { *((volatile int*)__null) = 2599; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 2600 | ||||
| 2601 | // If the current function allows super.property but cannot have a home | |||
| 2602 | // object, i.e., it is an arrow function, we need to propagate the flag to | |||
| 2603 | // the outer ParseContext. | |||
| 2604 | if (pc_->superScopeNeedsHomeObject()) { | |||
| 2605 | if (!pc_->isArrowFunction()) { | |||
| 2606 | MOZ_ASSERT(pc_->functionBox()->needsHomeObject())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->functionBox()->needsHomeObject())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(pc_->functionBox()->needsHomeObject()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->functionBox()->needsHomeObject()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2606); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->functionBox()->needsHomeObject()" ")"); do { *((volatile int*)__null) = 2606; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2607 | } else { | |||
| 2608 | outerpc->setSuperScopeNeedsHomeObject(); | |||
| 2609 | } | |||
| 2610 | } | |||
| 2611 | ||||
| 2612 | // Lazy functions inner to another lazy function need to be remembered by | |||
| 2613 | // the inner function so that if the outer function is eventually parsed | |||
| 2614 | // we do not need any further parsing or processing of the inner function. | |||
| 2615 | // | |||
| 2616 | // Append the inner function index here unconditionally; the vector is only | |||
| 2617 | // used if the Parser using outerpc is a syntax parsing. See | |||
| 2618 | // GeneralParser<SyntaxParseHandler>::finishFunction. | |||
| 2619 | if (!outerpc->innerFunctionIndexesForLazy.append( | |||
| 2620 | pc_->functionBox()->index())) { | |||
| 2621 | return false; | |||
| 2622 | } | |||
| 2623 | ||||
| 2624 | PropagateTransitiveParseFlags(pc_->functionBox(), outerpc->sc()); | |||
| 2625 | ||||
| 2626 | return true; | |||
| 2627 | } | |||
| 2628 | ||||
| 2629 | TaggedParserAtomIndex ParserBase::prefixAccessorName( | |||
| 2630 | PropertyType propType, TaggedParserAtomIndex propAtom) { | |||
| 2631 | StringBuffer prefixed(fc_); | |||
| 2632 | if (propType == PropertyType::Setter) { | |||
| 2633 | if (!prefixed.append("set ")) { | |||
| 2634 | return TaggedParserAtomIndex::null(); | |||
| 2635 | } | |||
| 2636 | } else { | |||
| 2637 | if (!prefixed.append("get ")) { | |||
| 2638 | return TaggedParserAtomIndex::null(); | |||
| 2639 | } | |||
| 2640 | } | |||
| 2641 | if (!prefixed.append(this->parserAtoms(), propAtom)) { | |||
| 2642 | return TaggedParserAtomIndex::null(); | |||
| 2643 | } | |||
| 2644 | return prefixed.finishParserAtom(this->parserAtoms(), fc_); | |||
| 2645 | } | |||
| 2646 | ||||
| 2647 | template <class ParseHandler, typename Unit> | |||
| 2648 | void GeneralParser<ParseHandler, Unit>::setFunctionStartAtPosition( | |||
| 2649 | FunctionBox* funbox, TokenPos pos) const { | |||
| 2650 | uint32_t startLine; | |||
| 2651 | JS::LimitedColumnNumberOneOrigin startColumn; | |||
| 2652 | tokenStream.computeLineAndColumn(pos.begin, &startLine, &startColumn); | |||
| 2653 | ||||
| 2654 | // NOTE: `Debugger::CallData::findScripts` relies on sourceStart and | |||
| 2655 | // lineno/column referring to the same location. | |||
| 2656 | funbox->setStart(pos.begin, startLine, startColumn); | |||
| 2657 | } | |||
| 2658 | ||||
| 2659 | template <class ParseHandler, typename Unit> | |||
| 2660 | void GeneralParser<ParseHandler, Unit>::setFunctionStartAtCurrentToken( | |||
| 2661 | FunctionBox* funbox) const { | |||
| 2662 | setFunctionStartAtPosition(funbox, anyChars.currentToken().pos); | |||
| 2663 | } | |||
| 2664 | ||||
| 2665 | template <class ParseHandler, typename Unit> | |||
| 2666 | bool GeneralParser<ParseHandler, Unit>::functionArguments( | |||
| 2667 | YieldHandling yieldHandling, FunctionSyntaxKind kind, | |||
| 2668 | FunctionNodeType funNode) { | |||
| 2669 | FunctionBox* funbox = pc_->functionBox(); | |||
| 2670 | ||||
| 2671 | // Modifier for the following tokens. | |||
| 2672 | // TokenStream::SlashIsDiv for the following cases: | |||
| 2673 | // async a => 1 | |||
| 2674 | // ^ | |||
| 2675 | // | |||
| 2676 | // (a) => 1 | |||
| 2677 | // ^ | |||
| 2678 | // | |||
| 2679 | // async (a) => 1 | |||
| 2680 | // ^ | |||
| 2681 | // | |||
| 2682 | // function f(a) {} | |||
| 2683 | // ^ | |||
| 2684 | // | |||
| 2685 | // TokenStream::SlashIsRegExp for the following case: | |||
| 2686 | // a => 1 | |||
| 2687 | // ^ | |||
| 2688 | Modifier firstTokenModifier = | |||
| 2689 | kind != FunctionSyntaxKind::Arrow || funbox->isAsync() | |||
| 2690 | ? TokenStream::SlashIsDiv | |||
| 2691 | : TokenStream::SlashIsRegExp; | |||
| 2692 | TokenKind tt; | |||
| 2693 | if (!tokenStream.getToken(&tt, firstTokenModifier)) { | |||
| 2694 | return false; | |||
| 2695 | } | |||
| 2696 | ||||
| 2697 | if (kind == FunctionSyntaxKind::Arrow && TokenKindIsPossibleIdentifier(tt)) { | |||
| 2698 | // Record the start of function source (for FunctionToString). | |||
| 2699 | setFunctionStartAtCurrentToken(funbox); | |||
| 2700 | ||||
| 2701 | ParamsBodyNodeType argsbody; | |||
| 2702 | MOZ_TRY_VAR_OR_RETURN(argsbody, handler_.newParamsBody(pos()), false)do { auto parserTryVarTempResult_ = (handler_.newParamsBody(pos ())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr( )), 0))) { return (false); } (argsbody) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 2703 | handler_.setFunctionFormalParametersAndBody(funNode, argsbody); | |||
| 2704 | ||||
| 2705 | TaggedParserAtomIndex name = bindingIdentifier(yieldHandling); | |||
| 2706 | if (!name) { | |||
| 2707 | return false; | |||
| 2708 | } | |||
| 2709 | ||||
| 2710 | constexpr bool disallowDuplicateParams = true; | |||
| 2711 | bool duplicatedParam = false; | |||
| 2712 | if (!notePositionalFormalParameter(funNode, name, pos().begin, | |||
| 2713 | disallowDuplicateParams, | |||
| 2714 | &duplicatedParam)) { | |||
| 2715 | return false; | |||
| 2716 | } | |||
| 2717 | MOZ_ASSERT(!duplicatedParam)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!duplicatedParam)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!duplicatedParam))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!duplicatedParam" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2717); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!duplicatedParam" ")"); do { *((volatile int*)__null) = 2717; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2718 | MOZ_ASSERT(pc_->positionalFormalParameterNames().length() == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->positionalFormalParameterNames().length() == 1)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pc_->positionalFormalParameterNames().length() == 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pc_->positionalFormalParameterNames().length() == 1", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2718); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->positionalFormalParameterNames().length() == 1" ")"); do { *((volatile int*)__null) = 2718; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2719 | ||||
| 2720 | funbox->setLength(1); | |||
| 2721 | funbox->setArgCount(1); | |||
| 2722 | return true; | |||
| 2723 | } | |||
| 2724 | ||||
| 2725 | if (tt != TokenKind::LeftParen) { | |||
| 2726 | error(kind == FunctionSyntaxKind::Arrow ? JSMSG_BAD_ARROW_ARGS | |||
| 2727 | : JSMSG_PAREN_BEFORE_FORMAL); | |||
| 2728 | return false; | |||
| 2729 | } | |||
| 2730 | ||||
| 2731 | // Record the start of function source (for FunctionToString). | |||
| 2732 | setFunctionStartAtCurrentToken(funbox); | |||
| 2733 | ||||
| 2734 | ParamsBodyNodeType argsbody; | |||
| 2735 | MOZ_TRY_VAR_OR_RETURN(argsbody, handler_.newParamsBody(pos()), false)do { auto parserTryVarTempResult_ = (handler_.newParamsBody(pos ())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr( )), 0))) { return (false); } (argsbody) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 2736 | handler_.setFunctionFormalParametersAndBody(funNode, argsbody); | |||
| 2737 | ||||
| 2738 | bool matched; | |||
| 2739 | if (!tokenStream.matchToken(&matched, TokenKind::RightParen, | |||
| 2740 | TokenStream::SlashIsRegExp)) { | |||
| 2741 | return false; | |||
| 2742 | } | |||
| 2743 | if (!matched) { | |||
| 2744 | bool hasRest = false; | |||
| 2745 | bool hasDefault = false; | |||
| 2746 | bool duplicatedParam = false; | |||
| 2747 | bool disallowDuplicateParams = | |||
| 2748 | kind == FunctionSyntaxKind::Arrow || | |||
| 2749 | kind == FunctionSyntaxKind::Method || | |||
| 2750 | kind == FunctionSyntaxKind::FieldInitializer || | |||
| 2751 | kind == FunctionSyntaxKind::ClassConstructor; | |||
| 2752 | AtomVector& positionalFormals = pc_->positionalFormalParameterNames(); | |||
| 2753 | ||||
| 2754 | if (kind == FunctionSyntaxKind::Getter) { | |||
| 2755 | error(JSMSG_ACCESSOR_WRONG_ARGS, "getter", "no", "s"); | |||
| 2756 | return false; | |||
| 2757 | } | |||
| 2758 | ||||
| 2759 | while (true) { | |||
| 2760 | if (hasRest) { | |||
| 2761 | error(JSMSG_PARAMETER_AFTER_REST); | |||
| 2762 | return false; | |||
| 2763 | } | |||
| 2764 | ||||
| 2765 | TokenKind tt; | |||
| 2766 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 2767 | return false; | |||
| 2768 | } | |||
| 2769 | ||||
| 2770 | if (tt == TokenKind::TripleDot) { | |||
| 2771 | if (kind == FunctionSyntaxKind::Setter) { | |||
| 2772 | error(JSMSG_ACCESSOR_WRONG_ARGS, "setter", "one", ""); | |||
| 2773 | return false; | |||
| 2774 | } | |||
| 2775 | ||||
| 2776 | disallowDuplicateParams = true; | |||
| 2777 | if (duplicatedParam) { | |||
| 2778 | // Has duplicated args before the rest parameter. | |||
| 2779 | error(JSMSG_BAD_DUP_ARGS); | |||
| 2780 | return false; | |||
| 2781 | } | |||
| 2782 | ||||
| 2783 | hasRest = true; | |||
| 2784 | funbox->setHasRest(); | |||
| 2785 | ||||
| 2786 | if (!tokenStream.getToken(&tt)) { | |||
| 2787 | return false; | |||
| 2788 | } | |||
| 2789 | ||||
| 2790 | if (!TokenKindIsPossibleIdentifier(tt) && | |||
| 2791 | tt != TokenKind::LeftBracket && tt != TokenKind::LeftCurly) { | |||
| 2792 | error(JSMSG_NO_REST_NAME); | |||
| 2793 | return false; | |||
| 2794 | } | |||
| 2795 | } | |||
| 2796 | ||||
| 2797 | switch (tt) { | |||
| 2798 | case TokenKind::LeftBracket: | |||
| 2799 | case TokenKind::LeftCurly: { | |||
| 2800 | disallowDuplicateParams = true; | |||
| 2801 | if (duplicatedParam) { | |||
| 2802 | // Has duplicated args before the destructuring parameter. | |||
| 2803 | error(JSMSG_BAD_DUP_ARGS); | |||
| 2804 | return false; | |||
| 2805 | } | |||
| 2806 | ||||
| 2807 | funbox->hasDestructuringArgs = true; | |||
| 2808 | ||||
| 2809 | Node destruct; | |||
| 2810 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (destructuringDeclarationWithoutYieldOrAwait ( DeclarationKind::FormalParameter, yieldHandling, tt)); if ( (__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (destruct) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 2811 | destruct,do { auto parserTryVarTempResult_ = (destructuringDeclarationWithoutYieldOrAwait ( DeclarationKind::FormalParameter, yieldHandling, tt)); if ( (__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (destruct) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 2812 | destructuringDeclarationWithoutYieldOrAwait(do { auto parserTryVarTempResult_ = (destructuringDeclarationWithoutYieldOrAwait ( DeclarationKind::FormalParameter, yieldHandling, tt)); if ( (__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (destruct) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 2813 | DeclarationKind::FormalParameter, yieldHandling, tt),do { auto parserTryVarTempResult_ = (destructuringDeclarationWithoutYieldOrAwait ( DeclarationKind::FormalParameter, yieldHandling, tt)); if ( (__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (destruct) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 2814 | false)do { auto parserTryVarTempResult_ = (destructuringDeclarationWithoutYieldOrAwait ( DeclarationKind::FormalParameter, yieldHandling, tt)); if ( (__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (destruct) = parserTryVarTempResult_.unwrap (); } while (0); | |||
| 2815 | ||||
| 2816 | if (!noteDestructuredPositionalFormalParameter(funNode, destruct)) { | |||
| 2817 | return false; | |||
| 2818 | } | |||
| 2819 | ||||
| 2820 | break; | |||
| 2821 | } | |||
| 2822 | ||||
| 2823 | default: { | |||
| 2824 | if (!TokenKindIsPossibleIdentifier(tt)) { | |||
| 2825 | error(JSMSG_MISSING_FORMAL); | |||
| 2826 | return false; | |||
| 2827 | } | |||
| 2828 | ||||
| 2829 | TaggedParserAtomIndex name = bindingIdentifier(yieldHandling); | |||
| 2830 | if (!name) { | |||
| 2831 | return false; | |||
| 2832 | } | |||
| 2833 | ||||
| 2834 | if (!notePositionalFormalParameter(funNode, name, pos().begin, | |||
| 2835 | disallowDuplicateParams, | |||
| 2836 | &duplicatedParam)) { | |||
| 2837 | return false; | |||
| 2838 | } | |||
| 2839 | if (duplicatedParam) { | |||
| 2840 | funbox->hasDuplicateParameters = true; | |||
| 2841 | } | |||
| 2842 | ||||
| 2843 | break; | |||
| 2844 | } | |||
| 2845 | } | |||
| 2846 | ||||
| 2847 | if (positionalFormals.length() >= ARGNO_LIMIT) { | |||
| 2848 | error(JSMSG_TOO_MANY_FUN_ARGS); | |||
| 2849 | return false; | |||
| 2850 | } | |||
| 2851 | ||||
| 2852 | bool matched; | |||
| 2853 | if (!tokenStream.matchToken(&matched, TokenKind::Assign, | |||
| 2854 | TokenStream::SlashIsRegExp)) { | |||
| 2855 | return false; | |||
| 2856 | } | |||
| 2857 | if (matched) { | |||
| 2858 | if (hasRest) { | |||
| 2859 | error(JSMSG_REST_WITH_DEFAULT); | |||
| 2860 | return false; | |||
| 2861 | } | |||
| 2862 | disallowDuplicateParams = true; | |||
| 2863 | if (duplicatedParam) { | |||
| 2864 | error(JSMSG_BAD_DUP_ARGS); | |||
| 2865 | return false; | |||
| 2866 | } | |||
| 2867 | ||||
| 2868 | if (!hasDefault) { | |||
| 2869 | hasDefault = true; | |||
| 2870 | ||||
| 2871 | // The Function.length property is the number of formals | |||
| 2872 | // before the first default argument. | |||
| 2873 | funbox->setLength(positionalFormals.length() - 1); | |||
| 2874 | } | |||
| 2875 | funbox->hasParameterExprs = true; | |||
| 2876 | ||||
| 2877 | Node def_expr; | |||
| 2878 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (assignExprWithoutYieldOrAwait (yieldHandling)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (def_expr) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 2879 | def_expr, assignExprWithoutYieldOrAwait(yieldHandling), false)do { auto parserTryVarTempResult_ = (assignExprWithoutYieldOrAwait (yieldHandling)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (def_expr) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 2880 | if (!handler_.setLastFunctionFormalParameterDefault(funNode, | |||
| 2881 | def_expr)) { | |||
| 2882 | return false; | |||
| 2883 | } | |||
| 2884 | } | |||
| 2885 | ||||
| 2886 | // Setter syntax uniquely requires exactly one argument. | |||
| 2887 | if (kind == FunctionSyntaxKind::Setter) { | |||
| 2888 | break; | |||
| 2889 | } | |||
| 2890 | ||||
| 2891 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 2892 | TokenStream::SlashIsRegExp)) { | |||
| 2893 | return false; | |||
| 2894 | } | |||
| 2895 | if (!matched) { | |||
| 2896 | break; | |||
| 2897 | } | |||
| 2898 | ||||
| 2899 | if (!hasRest) { | |||
| 2900 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 2901 | return false; | |||
| 2902 | } | |||
| 2903 | if (tt == TokenKind::RightParen) { | |||
| 2904 | break; | |||
| 2905 | } | |||
| 2906 | } | |||
| 2907 | } | |||
| 2908 | ||||
| 2909 | TokenKind tt; | |||
| 2910 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 2911 | return false; | |||
| 2912 | } | |||
| 2913 | if (tt != TokenKind::RightParen) { | |||
| 2914 | if (kind == FunctionSyntaxKind::Setter) { | |||
| 2915 | error(JSMSG_ACCESSOR_WRONG_ARGS, "setter", "one", ""); | |||
| 2916 | return false; | |||
| 2917 | } | |||
| 2918 | ||||
| 2919 | error(JSMSG_PAREN_AFTER_FORMAL); | |||
| 2920 | return false; | |||
| 2921 | } | |||
| 2922 | ||||
| 2923 | if (!hasDefault) { | |||
| 2924 | funbox->setLength(positionalFormals.length() - hasRest); | |||
| 2925 | } | |||
| 2926 | ||||
| 2927 | funbox->setArgCount(positionalFormals.length()); | |||
| 2928 | } else if (kind == FunctionSyntaxKind::Setter) { | |||
| 2929 | error(JSMSG_ACCESSOR_WRONG_ARGS, "setter", "one", ""); | |||
| 2930 | return false; | |||
| 2931 | } | |||
| 2932 | ||||
| 2933 | return true; | |||
| 2934 | } | |||
| 2935 | ||||
| 2936 | template <typename Unit> | |||
| 2937 | bool Parser<FullParseHandler, Unit>::skipLazyInnerFunction( | |||
| 2938 | FunctionNode* funNode, uint32_t toStringStart, bool tryAnnexB) { | |||
| 2939 | // When a lazily-parsed function is called, we only fully parse (and emit) | |||
| 2940 | // that function, not any of its nested children. The initial syntax-only | |||
| 2941 | // parse recorded the free variables of nested functions and their extents, | |||
| 2942 | // so we can skip over them after accounting for their free variables. | |||
| 2943 | ||||
| 2944 | MOZ_ASSERT(pc_->isOutermostOfCurrentCompile())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isOutermostOfCurrentCompile())>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(pc_->isOutermostOfCurrentCompile()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isOutermostOfCurrentCompile()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2944); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isOutermostOfCurrentCompile()" ")"); do { *((volatile int*)__null) = 2944; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2945 | handler_.nextLazyInnerFunction(); | |||
| 2946 | const ScriptStencil& cachedData = handler_.cachedScriptData(); | |||
| 2947 | const ScriptStencilExtra& cachedExtra = handler_.cachedScriptExtra(); | |||
| 2948 | MOZ_ASSERT(toStringStart == cachedExtra.extent.toStringStart)do { static_assert( mozilla::detail::AssertionConditionType< decltype(toStringStart == cachedExtra.extent.toStringStart)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(toStringStart == cachedExtra.extent.toStringStart))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("toStringStart == cachedExtra.extent.toStringStart" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2948); AnnotateMozCrashReason("MOZ_ASSERT" "(" "toStringStart == cachedExtra.extent.toStringStart" ")"); do { *((volatile int*)__null) = 2948; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2949 | ||||
| 2950 | FunctionBox* funbox = newFunctionBox(funNode, cachedData, cachedExtra); | |||
| 2951 | if (!funbox) { | |||
| 2952 | return false; | |||
| 2953 | } | |||
| 2954 | ||||
| 2955 | ScriptStencil& script = funbox->functionStencil(); | |||
| 2956 | funbox->copyFunctionFields(script); | |||
| 2957 | ||||
| 2958 | // If the inner lazy function is class constructor, connect it to the class | |||
| 2959 | // statement/expression we are parsing. | |||
| 2960 | if (funbox->isClassConstructor()) { | |||
| 2961 | auto classStmt = | |||
| 2962 | pc_->template findInnermostStatement<ParseContext::ClassStatement>(); | |||
| 2963 | MOZ_ASSERT(!classStmt->constructorBox)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!classStmt->constructorBox)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!classStmt->constructorBox ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!classStmt->constructorBox", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2963); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!classStmt->constructorBox" ")"); do { *((volatile int*)__null) = 2963; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2964 | classStmt->constructorBox = funbox; | |||
| 2965 | } | |||
| 2966 | ||||
| 2967 | MOZ_ASSERT_IF(pc_->isFunctionBox(),do { if (pc_->isFunctionBox()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(pc_->functionBox ()->index() < funbox->index())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->functionBox()->index () < funbox->index()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pc_->functionBox()->index() < funbox->index()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2968); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->functionBox()->index() < funbox->index()" ")"); do { *((volatile int*)__null) = 2968; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 2968 | pc_->functionBox()->index() < funbox->index())do { if (pc_->isFunctionBox()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(pc_->functionBox ()->index() < funbox->index())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->functionBox()->index () < funbox->index()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pc_->functionBox()->index() < funbox->index()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2968); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->functionBox()->index() < funbox->index()" ")"); do { *((volatile int*)__null) = 2968; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 2969 | ||||
| 2970 | PropagateTransitiveParseFlags(funbox, pc_->sc()); | |||
| 2971 | ||||
| 2972 | if (!tokenStream.advance(funbox->extent().sourceEnd)) { | |||
| 2973 | return false; | |||
| 2974 | } | |||
| 2975 | ||||
| 2976 | // Append possible Annex B function box only upon successfully parsing. | |||
| 2977 | if (tryAnnexB && | |||
| 2978 | !pc_->innermostScope()->addPossibleAnnexBFunctionBox(pc_, funbox)) { | |||
| 2979 | return false; | |||
| 2980 | } | |||
| 2981 | ||||
| 2982 | return true; | |||
| 2983 | } | |||
| 2984 | ||||
| 2985 | template <typename Unit> | |||
| 2986 | bool Parser<SyntaxParseHandler, Unit>::skipLazyInnerFunction( | |||
| 2987 | FunctionNodeType funNode, uint32_t toStringStart, bool tryAnnexB) { | |||
| 2988 | MOZ_CRASH("Cannot skip lazy inner functions when syntax parsing")do { do { } while (false); MOZ_ReportCrash("" "Cannot skip lazy inner functions when syntax parsing" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 2988); AnnotateMozCrashReason("MOZ_CRASH(" "Cannot skip lazy inner functions when syntax parsing" ")"); do { *((volatile int*)__null) = 2988; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 2989 | } | |||
| 2990 | ||||
| 2991 | template <class ParseHandler, typename Unit> | |||
| 2992 | bool GeneralParser<ParseHandler, Unit>::skipLazyInnerFunction( | |||
| 2993 | FunctionNodeType funNode, uint32_t toStringStart, bool tryAnnexB) { | |||
| 2994 | return asFinalParser()->skipLazyInnerFunction(funNode, toStringStart, | |||
| 2995 | tryAnnexB); | |||
| 2996 | } | |||
| 2997 | ||||
| 2998 | template <class ParseHandler, typename Unit> | |||
| 2999 | bool GeneralParser<ParseHandler, Unit>::addExprAndGetNextTemplStrToken( | |||
| 3000 | YieldHandling yieldHandling, ListNodeType nodeList, TokenKind* ttp) { | |||
| 3001 | Node pn; | |||
| 3002 | MOZ_TRY_VAR_OR_RETURN(pn, expr(InAllowed, yieldHandling, TripledotProhibited),do { auto parserTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (pn) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3003 | false)do { auto parserTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (pn) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 3004 | handler_.addList(nodeList, pn); | |||
| 3005 | ||||
| 3006 | TokenKind tt; | |||
| 3007 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 3008 | return false; | |||
| 3009 | } | |||
| 3010 | if (tt != TokenKind::RightCurly) { | |||
| 3011 | error(JSMSG_TEMPLSTR_UNTERM_EXPR); | |||
| 3012 | return false; | |||
| 3013 | } | |||
| 3014 | ||||
| 3015 | return tokenStream.getTemplateToken(ttp); | |||
| 3016 | } | |||
| 3017 | ||||
| 3018 | template <class ParseHandler, typename Unit> | |||
| 3019 | bool GeneralParser<ParseHandler, Unit>::taggedTemplate( | |||
| 3020 | YieldHandling yieldHandling, ListNodeType tagArgsList, TokenKind tt) { | |||
| 3021 | CallSiteNodeType callSiteObjNode; | |||
| 3022 | MOZ_TRY_VAR_OR_RETURN(callSiteObjNode,do { auto parserTryVarTempResult_ = (handler_.newCallSiteObject (pos().begin)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (callSiteObjNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3023 | handler_.newCallSiteObject(pos().begin), false)do { auto parserTryVarTempResult_ = (handler_.newCallSiteObject (pos().begin)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (callSiteObjNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 3024 | handler_.addList(tagArgsList, callSiteObjNode); | |||
| 3025 | ||||
| 3026 | pc_->sc()->setHasCallSiteObj(); | |||
| 3027 | ||||
| 3028 | while (true) { | |||
| 3029 | if (!appendToCallSiteObj(callSiteObjNode)) { | |||
| 3030 | return false; | |||
| 3031 | } | |||
| 3032 | if (tt != TokenKind::TemplateHead) { | |||
| 3033 | break; | |||
| 3034 | } | |||
| 3035 | ||||
| 3036 | if (!addExprAndGetNextTemplStrToken(yieldHandling, tagArgsList, &tt)) { | |||
| 3037 | return false; | |||
| 3038 | } | |||
| 3039 | } | |||
| 3040 | handler_.setEndPosition(tagArgsList, callSiteObjNode); | |||
| 3041 | return true; | |||
| 3042 | } | |||
| 3043 | ||||
| 3044 | template <class ParseHandler, typename Unit> | |||
| 3045 | typename ParseHandler::ListNodeResult | |||
| 3046 | GeneralParser<ParseHandler, Unit>::templateLiteral( | |||
| 3047 | YieldHandling yieldHandling) { | |||
| 3048 | NameNodeType literal; | |||
| 3049 | MOZ_TRY_VAR(literal, noSubstitutionUntaggedTemplate())do { auto mozTryVarTempResult_ = (noSubstitutionUntaggedTemplate ()); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (literal) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 3050 | ||||
| 3051 | ListNodeType nodeList; | |||
| 3052 | MOZ_TRY_VAR(nodeList,do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::TemplateStringListExpr, literal)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (nodeList) = mozTryVarTempResult_.unwrap() ; } while (0) | |||
| 3053 | handler_.newList(ParseNodeKind::TemplateStringListExpr, literal))do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::TemplateStringListExpr, literal)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (nodeList) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 3054 | ||||
| 3055 | TokenKind tt; | |||
| 3056 | do { | |||
| 3057 | if (!addExprAndGetNextTemplStrToken(yieldHandling, nodeList, &tt)) { | |||
| 3058 | return errorResult(); | |||
| 3059 | } | |||
| 3060 | ||||
| 3061 | MOZ_TRY_VAR(literal, noSubstitutionUntaggedTemplate())do { auto mozTryVarTempResult_ = (noSubstitutionUntaggedTemplate ()); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (literal) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 3062 | ||||
| 3063 | handler_.addList(nodeList, literal); | |||
| 3064 | } while (tt == TokenKind::TemplateHead); | |||
| 3065 | return nodeList; | |||
| 3066 | } | |||
| 3067 | ||||
| 3068 | template <class ParseHandler, typename Unit> | |||
| 3069 | typename ParseHandler::FunctionNodeResult | |||
| 3070 | GeneralParser<ParseHandler, Unit>::functionDefinition( | |||
| 3071 | FunctionNodeType funNode, uint32_t toStringStart, InHandling inHandling, | |||
| 3072 | YieldHandling yieldHandling, TaggedParserAtomIndex funName, | |||
| 3073 | FunctionSyntaxKind kind, GeneratorKind generatorKind, | |||
| 3074 | FunctionAsyncKind asyncKind, bool tryAnnexB /* = false */) { | |||
| 3075 | MOZ_ASSERT_IF(kind == FunctionSyntaxKind::Statement, funName)do { if (kind == FunctionSyntaxKind::Statement) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(funName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(funName))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("funName", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3075); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funName" ")" ); do { *((volatile int*)__null) = 3075; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 3076 | ||||
| 3077 | // If we see any inner function, note it on our current context. The bytecode | |||
| 3078 | // emitter may eliminate the function later, but we use a conservative | |||
| 3079 | // definition for consistency between lazy and full parsing. | |||
| 3080 | pc_->sc()->setHasInnerFunctions(); | |||
| 3081 | ||||
| 3082 | // When fully parsing a lazy script, we do not fully reparse its inner | |||
| 3083 | // functions, which are also lazy. Instead, their free variables and source | |||
| 3084 | // extents are recorded and may be skipped. | |||
| 3085 | if (handler_.reuseLazyInnerFunctions()) { | |||
| 3086 | if (!skipLazyInnerFunction(funNode, toStringStart, tryAnnexB)) { | |||
| 3087 | return errorResult(); | |||
| 3088 | } | |||
| 3089 | ||||
| 3090 | return funNode; | |||
| 3091 | } | |||
| 3092 | ||||
| 3093 | bool isSelfHosting = options().selfHostingMode; | |||
| 3094 | FunctionFlags flags = | |||
| 3095 | InitialFunctionFlags(kind, generatorKind, asyncKind, isSelfHosting); | |||
| 3096 | ||||
| 3097 | // Self-hosted functions with special function names require extended slots | |||
| 3098 | // for various purposes. | |||
| 3099 | bool forceExtended = | |||
| 3100 | isSelfHosting && funName && | |||
| 3101 | this->parserAtoms().isExtendedUnclonedSelfHostedFunctionName(funName); | |||
| 3102 | if (forceExtended) { | |||
| 3103 | flags.setIsExtended(); | |||
| 3104 | } | |||
| 3105 | ||||
| 3106 | // Speculatively parse using the directives of the parent parsing context. | |||
| 3107 | // If a directive is encountered (e.g., "use strict") that changes how the | |||
| 3108 | // function should have been parsed, we backup and reparse with the new set | |||
| 3109 | // of directives. | |||
| 3110 | Directives directives(pc_); | |||
| 3111 | Directives newDirectives = directives; | |||
| 3112 | ||||
| 3113 | Position start(tokenStream); | |||
| 3114 | auto startObj = this->compilationState_.getPosition(); | |||
| 3115 | ||||
| 3116 | // Parse the inner function. The following is a loop as we may attempt to | |||
| 3117 | // reparse a function due to failed syntax parsing and encountering new | |||
| 3118 | // "use foo" directives. | |||
| 3119 | while (true) { | |||
| 3120 | if (trySyntaxParseInnerFunction(&funNode, funName, flags, toStringStart, | |||
| 3121 | inHandling, yieldHandling, kind, | |||
| 3122 | generatorKind, asyncKind, tryAnnexB, | |||
| 3123 | directives, &newDirectives)) { | |||
| 3124 | break; | |||
| 3125 | } | |||
| 3126 | ||||
| 3127 | // Return on error. | |||
| 3128 | if (anyChars.hadError() || directives == newDirectives) { | |||
| 3129 | return errorResult(); | |||
| 3130 | } | |||
| 3131 | ||||
| 3132 | // Assignment must be monotonic to prevent infinitely attempting to | |||
| 3133 | // reparse. | |||
| 3134 | MOZ_ASSERT_IF(directives.strict(), newDirectives.strict())do { if (directives.strict()) { do { static_assert( mozilla:: detail::AssertionConditionType<decltype(newDirectives.strict ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(newDirectives.strict()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("newDirectives.strict()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3134); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newDirectives.strict()" ")"); do { *((volatile int*)__null) = 3134; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 3135 | MOZ_ASSERT_IF(directives.asmJS(), newDirectives.asmJS())do { if (directives.asmJS()) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(newDirectives.asmJS())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(newDirectives.asmJS()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("newDirectives.asmJS()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3135); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newDirectives.asmJS()" ")"); do { *((volatile int*)__null) = 3135; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 3136 | directives = newDirectives; | |||
| 3137 | ||||
| 3138 | // Rewind to retry parsing with new directives applied. | |||
| 3139 | tokenStream.rewind(start); | |||
| 3140 | this->compilationState_.rewind(startObj); | |||
| 3141 | ||||
| 3142 | // functionFormalParametersAndBody may have already set body before failing. | |||
| 3143 | handler_.setFunctionFormalParametersAndBody(funNode, null()); | |||
| 3144 | } | |||
| 3145 | ||||
| 3146 | return funNode; | |||
| 3147 | } | |||
| 3148 | ||||
| 3149 | template <typename Unit> | |||
| 3150 | bool Parser<FullParseHandler, Unit>::advancePastSyntaxParsedFunction( | |||
| 3151 | SyntaxParser* syntaxParser) { | |||
| 3152 | MOZ_ASSERT(getSyntaxParser() == syntaxParser)do { static_assert( mozilla::detail::AssertionConditionType< decltype(getSyntaxParser() == syntaxParser)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(getSyntaxParser() == syntaxParser ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "getSyntaxParser() == syntaxParser", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3152); AnnotateMozCrashReason("MOZ_ASSERT" "(" "getSyntaxParser() == syntaxParser" ")"); do { *((volatile int*)__null) = 3152; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3153 | ||||
| 3154 | // Advance this parser over tokens processed by the syntax parser. | |||
| 3155 | Position currentSyntaxPosition(syntaxParser->tokenStream); | |||
| 3156 | if (!tokenStream.fastForward(currentSyntaxPosition, syntaxParser->anyChars)) { | |||
| 3157 | return false; | |||
| 3158 | } | |||
| 3159 | ||||
| 3160 | anyChars.adoptState(syntaxParser->anyChars); | |||
| 3161 | tokenStream.adoptState(syntaxParser->tokenStream); | |||
| 3162 | return true; | |||
| 3163 | } | |||
| 3164 | ||||
| 3165 | template <typename Unit> | |||
| 3166 | bool Parser<FullParseHandler, Unit>::trySyntaxParseInnerFunction( | |||
| 3167 | FunctionNode** funNode, TaggedParserAtomIndex explicitName, | |||
| 3168 | FunctionFlags flags, uint32_t toStringStart, InHandling inHandling, | |||
| 3169 | YieldHandling yieldHandling, FunctionSyntaxKind kind, | |||
| 3170 | GeneratorKind generatorKind, FunctionAsyncKind asyncKind, bool tryAnnexB, | |||
| 3171 | Directives inheritedDirectives, Directives* newDirectives) { | |||
| 3172 | // Try a syntax parse for this inner function. | |||
| 3173 | do { | |||
| 3174 | // If we're assuming this function is an IIFE, always perform a full | |||
| 3175 | // parse to avoid the overhead of a lazy syntax-only parse. Although | |||
| 3176 | // the prediction may be incorrect, IIFEs are common enough that it | |||
| 3177 | // pays off for lots of code. | |||
| 3178 | if ((*funNode)->isLikelyIIFE() && | |||
| 3179 | generatorKind == GeneratorKind::NotGenerator && | |||
| 3180 | asyncKind == FunctionAsyncKind::SyncFunction) { | |||
| 3181 | break; | |||
| 3182 | } | |||
| 3183 | ||||
| 3184 | SyntaxParser* syntaxParser = getSyntaxParser(); | |||
| 3185 | if (!syntaxParser) { | |||
| 3186 | break; | |||
| 3187 | } | |||
| 3188 | ||||
| 3189 | UsedNameTracker::RewindToken token = usedNames_.getRewindToken(); | |||
| 3190 | auto statePosition = this->compilationState_.getPosition(); | |||
| 3191 | ||||
| 3192 | // Move the syntax parser to the current position in the stream. In the | |||
| 3193 | // common case this seeks forward, but it'll also seek backward *at least* | |||
| 3194 | // when arrow functions appear inside arrow function argument defaults | |||
| 3195 | // (because we rewind to reparse arrow functions once we're certain they're | |||
| 3196 | // arrow functions): | |||
| 3197 | // | |||
| 3198 | // var x = (y = z => 2) => q; | |||
| 3199 | // // ^ we first seek to here to syntax-parse this function | |||
| 3200 | // // ^ then we seek back to here to syntax-parse the outer function | |||
| 3201 | Position currentPosition(tokenStream); | |||
| 3202 | if (!syntaxParser->tokenStream.seekTo(currentPosition, anyChars)) { | |||
| 3203 | return false; | |||
| 3204 | } | |||
| 3205 | ||||
| 3206 | // Make a FunctionBox before we enter the syntax parser, because |pn| | |||
| 3207 | // still expects a FunctionBox to be attached to it during BCE, and | |||
| 3208 | // the syntax parser cannot attach one to it. | |||
| 3209 | FunctionBox* funbox = | |||
| 3210 | newFunctionBox(*funNode, explicitName, flags, toStringStart, | |||
| 3211 | inheritedDirectives, generatorKind, asyncKind); | |||
| 3212 | if (!funbox) { | |||
| 3213 | return false; | |||
| 3214 | } | |||
| 3215 | funbox->initWithEnclosingParseContext(pc_, kind); | |||
| 3216 | ||||
| 3217 | auto syntaxNodeResult = syntaxParser->innerFunctionForFunctionBox( | |||
| 3218 | SyntaxParseHandler::Node::NodeGeneric, pc_, funbox, inHandling, | |||
| 3219 | yieldHandling, kind, newDirectives); | |||
| 3220 | if (syntaxNodeResult.isErr()) { | |||
| 3221 | if (syntaxParser->hadAbortedSyntaxParse()) { | |||
| 3222 | // Try again with a full parse. UsedNameTracker needs to be | |||
| 3223 | // rewound to just before we tried the syntax parse for | |||
| 3224 | // correctness. | |||
| 3225 | syntaxParser->clearAbortedSyntaxParse(); | |||
| 3226 | usedNames_.rewind(token); | |||
| 3227 | this->compilationState_.rewind(statePosition); | |||
| 3228 | MOZ_ASSERT(!fc_->hadErrors())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!fc_->hadErrors())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!fc_->hadErrors()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!fc_->hadErrors()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3228); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!fc_->hadErrors()" ")"); do { *((volatile int*)__null) = 3228; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3229 | break; | |||
| 3230 | } | |||
| 3231 | return false; | |||
| 3232 | } | |||
| 3233 | ||||
| 3234 | if (!advancePastSyntaxParsedFunction(syntaxParser)) { | |||
| 3235 | return false; | |||
| 3236 | } | |||
| 3237 | ||||
| 3238 | // Update the end position of the parse node. | |||
| 3239 | (*funNode)->pn_pos.end = anyChars.currentToken().pos.end; | |||
| 3240 | ||||
| 3241 | // Append possible Annex B function box only upon successfully parsing. | |||
| 3242 | if (tryAnnexB) { | |||
| 3243 | if (!pc_->innermostScope()->addPossibleAnnexBFunctionBox(pc_, funbox)) { | |||
| 3244 | return false; | |||
| 3245 | } | |||
| 3246 | } | |||
| 3247 | ||||
| 3248 | return true; | |||
| 3249 | } while (false); | |||
| 3250 | ||||
| 3251 | // We failed to do a syntax parse above, so do the full parse. | |||
| 3252 | FunctionNodeType innerFunc; | |||
| 3253 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3254 | innerFunc,do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3255 | innerFunction(*funNode, pc_, explicitName, flags, toStringStart,do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3256 | inHandling, yieldHandling, kind, generatorKind, asyncKind,do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3257 | tryAnnexB, inheritedDirectives, newDirectives),do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3258 | false)do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 3259 | ||||
| 3260 | *funNode = innerFunc; | |||
| 3261 | return true; | |||
| 3262 | } | |||
| 3263 | ||||
| 3264 | template <typename Unit> | |||
| 3265 | bool Parser<SyntaxParseHandler, Unit>::trySyntaxParseInnerFunction( | |||
| 3266 | FunctionNodeType* funNode, TaggedParserAtomIndex explicitName, | |||
| 3267 | FunctionFlags flags, uint32_t toStringStart, InHandling inHandling, | |||
| 3268 | YieldHandling yieldHandling, FunctionSyntaxKind kind, | |||
| 3269 | GeneratorKind generatorKind, FunctionAsyncKind asyncKind, bool tryAnnexB, | |||
| 3270 | Directives inheritedDirectives, Directives* newDirectives) { | |||
| 3271 | // This is already a syntax parser, so just parse the inner function. | |||
| 3272 | FunctionNodeType innerFunc; | |||
| 3273 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3274 | innerFunc,do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3275 | innerFunction(*funNode, pc_, explicitName, flags, toStringStart,do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3276 | inHandling, yieldHandling, kind, generatorKind, asyncKind,do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3277 | tryAnnexB, inheritedDirectives, newDirectives),do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3278 | false)do { auto parserTryVarTempResult_ = (innerFunction(*funNode, pc_ , explicitName, flags, toStringStart, inHandling, yieldHandling , kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives , newDirectives)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (innerFunc) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 3279 | ||||
| 3280 | *funNode = innerFunc; | |||
| 3281 | return true; | |||
| 3282 | } | |||
| 3283 | ||||
| 3284 | template <class ParseHandler, typename Unit> | |||
| 3285 | inline bool GeneralParser<ParseHandler, Unit>::trySyntaxParseInnerFunction( | |||
| 3286 | FunctionNodeType* funNode, TaggedParserAtomIndex explicitName, | |||
| 3287 | FunctionFlags flags, uint32_t toStringStart, InHandling inHandling, | |||
| 3288 | YieldHandling yieldHandling, FunctionSyntaxKind kind, | |||
| 3289 | GeneratorKind generatorKind, FunctionAsyncKind asyncKind, bool tryAnnexB, | |||
| 3290 | Directives inheritedDirectives, Directives* newDirectives) { | |||
| 3291 | return asFinalParser()->trySyntaxParseInnerFunction( | |||
| 3292 | funNode, explicitName, flags, toStringStart, inHandling, yieldHandling, | |||
| 3293 | kind, generatorKind, asyncKind, tryAnnexB, inheritedDirectives, | |||
| 3294 | newDirectives); | |||
| 3295 | } | |||
| 3296 | ||||
| 3297 | template <class ParseHandler, typename Unit> | |||
| 3298 | typename ParseHandler::FunctionNodeResult | |||
| 3299 | GeneralParser<ParseHandler, Unit>::innerFunctionForFunctionBox( | |||
| 3300 | FunctionNodeType funNode, ParseContext* outerpc, FunctionBox* funbox, | |||
| 3301 | InHandling inHandling, YieldHandling yieldHandling, FunctionSyntaxKind kind, | |||
| 3302 | Directives* newDirectives) { | |||
| 3303 | // Note that it is possible for outerpc != this->pc_, as we may be | |||
| 3304 | // attempting to syntax parse an inner function from an outer full | |||
| 3305 | // parser. In that case, outerpc is a SourceParseContext from the full parser | |||
| 3306 | // instead of the current top of the stack of the syntax parser. | |||
| 3307 | ||||
| 3308 | // Push a new ParseContext. | |||
| 3309 | SourceParseContext funpc(this, funbox, newDirectives); | |||
| 3310 | if (!funpc.init()) { | |||
| 3311 | return errorResult(); | |||
| 3312 | } | |||
| 3313 | ||||
| 3314 | if (!functionFormalParametersAndBody(inHandling, yieldHandling, &funNode, | |||
| 3315 | kind)) { | |||
| 3316 | return errorResult(); | |||
| 3317 | } | |||
| 3318 | ||||
| 3319 | if (!leaveInnerFunction(outerpc)) { | |||
| 3320 | return errorResult(); | |||
| 3321 | } | |||
| 3322 | ||||
| 3323 | return funNode; | |||
| 3324 | } | |||
| 3325 | ||||
| 3326 | template <class ParseHandler, typename Unit> | |||
| 3327 | typename ParseHandler::FunctionNodeResult | |||
| 3328 | GeneralParser<ParseHandler, Unit>::innerFunction( | |||
| 3329 | FunctionNodeType funNode, ParseContext* outerpc, | |||
| 3330 | TaggedParserAtomIndex explicitName, FunctionFlags flags, | |||
| 3331 | uint32_t toStringStart, InHandling inHandling, YieldHandling yieldHandling, | |||
| 3332 | FunctionSyntaxKind kind, GeneratorKind generatorKind, | |||
| 3333 | FunctionAsyncKind asyncKind, bool tryAnnexB, Directives inheritedDirectives, | |||
| 3334 | Directives* newDirectives) { | |||
| 3335 | // Note that it is possible for outerpc != this->pc_, as we may be | |||
| 3336 | // attempting to syntax parse an inner function from an outer full | |||
| 3337 | // parser. In that case, outerpc is a SourceParseContext from the full parser | |||
| 3338 | // instead of the current top of the stack of the syntax parser. | |||
| 3339 | ||||
| 3340 | FunctionBox* funbox = | |||
| 3341 | newFunctionBox(funNode, explicitName, flags, toStringStart, | |||
| 3342 | inheritedDirectives, generatorKind, asyncKind); | |||
| 3343 | if (!funbox) { | |||
| 3344 | return errorResult(); | |||
| 3345 | } | |||
| 3346 | funbox->initWithEnclosingParseContext(outerpc, kind); | |||
| 3347 | ||||
| 3348 | FunctionNodeType innerFunc; | |||
| 3349 | MOZ_TRY_VAR(innerFunc,do { auto mozTryVarTempResult_ = (innerFunctionForFunctionBox (funNode, outerpc, funbox, inHandling, yieldHandling, kind, newDirectives )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (innerFunc ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 3350 | innerFunctionForFunctionBox(funNode, outerpc, funbox, inHandling,do { auto mozTryVarTempResult_ = (innerFunctionForFunctionBox (funNode, outerpc, funbox, inHandling, yieldHandling, kind, newDirectives )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (innerFunc ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 3351 | yieldHandling, kind, newDirectives))do { auto mozTryVarTempResult_ = (innerFunctionForFunctionBox (funNode, outerpc, funbox, inHandling, yieldHandling, kind, newDirectives )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (innerFunc ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 3352 | ||||
| 3353 | // Append possible Annex B function box only upon successfully parsing. | |||
| 3354 | if (tryAnnexB) { | |||
| 3355 | if (!pc_->innermostScope()->addPossibleAnnexBFunctionBox(pc_, funbox)) { | |||
| 3356 | return errorResult(); | |||
| 3357 | } | |||
| 3358 | } | |||
| 3359 | ||||
| 3360 | return innerFunc; | |||
| 3361 | } | |||
| 3362 | ||||
| 3363 | template <class ParseHandler, typename Unit> | |||
| 3364 | bool GeneralParser<ParseHandler, Unit>::appendToCallSiteObj( | |||
| 3365 | CallSiteNodeType callSiteObj) { | |||
| 3366 | Node cookedNode; | |||
| 3367 | MOZ_TRY_VAR_OR_RETURN(cookedNode, noSubstitutionTaggedTemplate(), false)do { auto parserTryVarTempResult_ = (noSubstitutionTaggedTemplate ()); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr() ), 0))) { return (false); } (cookedNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 3368 | ||||
| 3369 | auto atom = tokenStream.getRawTemplateStringAtom(); | |||
| 3370 | if (!atom) { | |||
| 3371 | return false; | |||
| 3372 | } | |||
| 3373 | NameNodeType rawNode; | |||
| 3374 | MOZ_TRY_VAR_OR_RETURN(rawNode, handler_.newTemplateStringLiteral(atom, pos()),do { auto parserTryVarTempResult_ = (handler_.newTemplateStringLiteral (atom, pos())); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (rawNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 3375 | false)do { auto parserTryVarTempResult_ = (handler_.newTemplateStringLiteral (atom, pos())); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (rawNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 3376 | ||||
| 3377 | handler_.addToCallSiteObject(callSiteObj, rawNode, cookedNode); | |||
| 3378 | return true; | |||
| 3379 | } | |||
| 3380 | ||||
| 3381 | template <typename Unit> | |||
| 3382 | FullParseHandler::FunctionNodeResult | |||
| 3383 | Parser<FullParseHandler, Unit>::standaloneLazyFunction( | |||
| 3384 | CompilationInput& input, uint32_t toStringStart, bool strict, | |||
| 3385 | GeneratorKind generatorKind, FunctionAsyncKind asyncKind) { | |||
| 3386 | MOZ_ASSERT(checkOptionsCalled_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(checkOptionsCalled_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(checkOptionsCalled_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("checkOptionsCalled_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3386); AnnotateMozCrashReason("MOZ_ASSERT" "(" "checkOptionsCalled_" ")"); do { *((volatile int*)__null) = 3386; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3387 | ||||
| 3388 | FunctionSyntaxKind syntaxKind = input.functionSyntaxKind(); | |||
| 3389 | FunctionNodeType funNode; | |||
| 3390 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, pos()))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 3391 | ||||
| 3392 | TaggedParserAtomIndex displayAtom = | |||
| 3393 | this->getCompilationState().previousParseCache.displayAtom(); | |||
| 3394 | ||||
| 3395 | Directives directives(strict); | |||
| 3396 | FunctionBox* funbox = | |||
| 3397 | newFunctionBox(funNode, displayAtom, input.functionFlags(), toStringStart, | |||
| 3398 | directives, generatorKind, asyncKind); | |||
| 3399 | if (!funbox) { | |||
| 3400 | return errorResult(); | |||
| 3401 | } | |||
| 3402 | const ScriptStencilExtra& funExtra = | |||
| 3403 | this->getCompilationState().previousParseCache.funExtra(); | |||
| 3404 | funbox->initFromLazyFunction( | |||
| 3405 | funExtra, this->getCompilationState().scopeContext, syntaxKind); | |||
| 3406 | if (funbox->useMemberInitializers()) { | |||
| 3407 | funbox->setMemberInitializers(funExtra.memberInitializers()); | |||
| 3408 | } | |||
| 3409 | ||||
| 3410 | Directives newDirectives = directives; | |||
| 3411 | SourceParseContext funpc(this, funbox, &newDirectives); | |||
| 3412 | if (!funpc.init()) { | |||
| 3413 | return errorResult(); | |||
| 3414 | } | |||
| 3415 | ||||
| 3416 | // Our tokenStream has no current token, so funNode's position is garbage. | |||
| 3417 | // Substitute the position of the first token in our source. If the | |||
| 3418 | // function is a not-async arrow, use TokenStream::SlashIsRegExp to keep | |||
| 3419 | // verifyConsistentModifier from complaining (we will use | |||
| 3420 | // TokenStream::SlashIsRegExp in functionArguments). | |||
| 3421 | Modifier modifier = (input.functionFlags().isArrow() && | |||
| 3422 | asyncKind == FunctionAsyncKind::SyncFunction) | |||
| 3423 | ? TokenStream::SlashIsRegExp | |||
| 3424 | : TokenStream::SlashIsDiv; | |||
| 3425 | if (!tokenStream.peekTokenPos(&funNode->pn_pos, modifier)) { | |||
| 3426 | return errorResult(); | |||
| 3427 | } | |||
| 3428 | ||||
| 3429 | YieldHandling yieldHandling = GetYieldHandling(generatorKind); | |||
| 3430 | ||||
| 3431 | if (funbox->isSyntheticFunction()) { | |||
| 3432 | // Currently default class constructors are the only synthetic function that | |||
| 3433 | // supports delazification. | |||
| 3434 | MOZ_ASSERT(funbox->isClassConstructor())do { static_assert( mozilla::detail::AssertionConditionType< decltype(funbox->isClassConstructor())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(funbox->isClassConstructor ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("funbox->isClassConstructor()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3434); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funbox->isClassConstructor()" ")"); do { *((volatile int*)__null) = 3434; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3435 | MOZ_ASSERT(funbox->extent().toStringStart == funbox->extent().sourceStart)do { static_assert( mozilla::detail::AssertionConditionType< decltype(funbox->extent().toStringStart == funbox->extent ().sourceStart)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(funbox->extent().toStringStart == funbox->extent().sourceStart))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("funbox->extent().toStringStart == funbox->extent().sourceStart" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3435); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funbox->extent().toStringStart == funbox->extent().sourceStart" ")"); do { *((volatile int*)__null) = 3435; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3436 | ||||
| 3437 | HasHeritage hasHeritage = funbox->isDerivedClassConstructor() | |||
| 3438 | ? HasHeritage::Yes | |||
| 3439 | : HasHeritage::No; | |||
| 3440 | TokenPos synthesizedBodyPos(funbox->extent().toStringStart, | |||
| 3441 | funbox->extent().toStringEnd); | |||
| 3442 | ||||
| 3443 | // Reset pos() to the `class` keyword for predictable results. | |||
| 3444 | tokenStream.consumeKnownToken(TokenKind::Class); | |||
| 3445 | ||||
| 3446 | if (!this->synthesizeConstructorBody(synthesizedBodyPos, hasHeritage, | |||
| 3447 | funNode, funbox)) { | |||
| 3448 | return errorResult(); | |||
| 3449 | } | |||
| 3450 | } else { | |||
| 3451 | if (!functionFormalParametersAndBody(InAllowed, yieldHandling, &funNode, | |||
| 3452 | syntaxKind)) { | |||
| 3453 | MOZ_ASSERT(directives == newDirectives)do { static_assert( mozilla::detail::AssertionConditionType< decltype(directives == newDirectives)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(directives == newDirectives) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("directives == newDirectives" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3453); AnnotateMozCrashReason("MOZ_ASSERT" "(" "directives == newDirectives" ")"); do { *((volatile int*)__null) = 3453; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3454 | return errorResult(); | |||
| 3455 | } | |||
| 3456 | } | |||
| 3457 | ||||
| 3458 | if (!CheckParseTree(this->fc_, alloc_, funNode)) { | |||
| 3459 | return errorResult(); | |||
| 3460 | } | |||
| 3461 | ||||
| 3462 | ParseNode* node = funNode; | |||
| 3463 | // Don't constant-fold inside "use asm" code, as this could create a parse | |||
| 3464 | // tree that doesn't type-check as asm.js. | |||
| 3465 | if (!pc_->useAsmOrInsideUseAsm()) { | |||
| 3466 | if (!FoldConstants(this->fc_, this->parserAtoms(), &node, &handler_)) { | |||
| 3467 | return errorResult(); | |||
| 3468 | } | |||
| 3469 | } | |||
| 3470 | funNode = &node->as<FunctionNode>(); | |||
| 3471 | ||||
| 3472 | return funNode; | |||
| 3473 | } | |||
| 3474 | ||||
| 3475 | void ParserBase::setFunctionEndFromCurrentToken(FunctionBox* funbox) const { | |||
| 3476 | if (compilationState_.isInitialStencil()) { | |||
| 3477 | MOZ_ASSERT(anyChars.currentToken().type != TokenKind::Eof)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.currentToken().type != TokenKind::Eof)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.currentToken().type != TokenKind::Eof))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.currentToken().type != TokenKind::Eof" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3477); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.currentToken().type != TokenKind::Eof" ")"); do { *((volatile int*)__null) = 3477; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3478 | MOZ_ASSERT(anyChars.currentToken().type < TokenKind::Limit)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.currentToken().type < TokenKind::Limit)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.currentToken().type < TokenKind::Limit)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.currentToken().type < TokenKind::Limit" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3478); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.currentToken().type < TokenKind::Limit" ")"); do { *((volatile int*)__null) = 3478; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3479 | funbox->setEnd(anyChars.currentToken().pos.end); | |||
| 3480 | } else { | |||
| 3481 | // If we're delazifying an arrow function with expression body and | |||
| 3482 | // the expression is also a function, we arrive here immediately after | |||
| 3483 | // skipping the function by Parser::skipLazyInnerFunction. | |||
| 3484 | // | |||
| 3485 | // a => b => c | |||
| 3486 | // ^ | |||
| 3487 | // | | |||
| 3488 | // we're here | |||
| 3489 | // | |||
| 3490 | // In that case, the current token's type field is either Limit or | |||
| 3491 | // poisoned. | |||
| 3492 | // We shouldn't read the value if it's poisoned. | |||
| 3493 | // See TokenStreamSpecific<Unit, AnyCharsAccess>::advance and | |||
| 3494 | // mfbt/MemoryChecking.h for more details. | |||
| 3495 | // | |||
| 3496 | // Also, in delazification, the FunctionBox should already have the | |||
| 3497 | // correct extent, and we shouldn't overwrite it here. | |||
| 3498 | // See ScriptStencil variant of PerHandlerParser::newFunctionBox. | |||
| 3499 | #if !defined(MOZ_ASAN) && !defined(MOZ_MSAN) && !defined(MOZ_VALGRIND) | |||
| 3500 | MOZ_ASSERT(anyChars.currentToken().type != TokenKind::Eof)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.currentToken().type != TokenKind::Eof)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.currentToken().type != TokenKind::Eof))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.currentToken().type != TokenKind::Eof" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3500); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.currentToken().type != TokenKind::Eof" ")"); do { *((volatile int*)__null) = 3500; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3501 | #endif | |||
| 3502 | MOZ_ASSERT(funbox->extent().sourceEnd == anyChars.currentToken().pos.end)do { static_assert( mozilla::detail::AssertionConditionType< decltype(funbox->extent().sourceEnd == anyChars.currentToken ().pos.end)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(funbox->extent().sourceEnd == anyChars .currentToken().pos.end))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("funbox->extent().sourceEnd == anyChars.currentToken().pos.end" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3502); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funbox->extent().sourceEnd == anyChars.currentToken().pos.end" ")"); do { *((volatile int*)__null) = 3502; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3503 | } | |||
| 3504 | } | |||
| 3505 | ||||
| 3506 | template <class ParseHandler, typename Unit> | |||
| 3507 | bool GeneralParser<ParseHandler, Unit>::functionFormalParametersAndBody( | |||
| 3508 | InHandling inHandling, YieldHandling yieldHandling, | |||
| 3509 | FunctionNodeType* funNode, FunctionSyntaxKind kind, | |||
| 3510 | const Maybe<uint32_t>& parameterListEnd /* = Nothing() */, | |||
| 3511 | bool isStandaloneFunction /* = false */) { | |||
| 3512 | // Given a properly initialized parse context, try to parse an actual | |||
| 3513 | // function without concern for conversion to strict mode, use of lazy | |||
| 3514 | // parsing and such. | |||
| 3515 | ||||
| 3516 | FunctionBox* funbox = pc_->functionBox(); | |||
| 3517 | ||||
| 3518 | if (kind == FunctionSyntaxKind::ClassConstructor || | |||
| 3519 | kind == FunctionSyntaxKind::DerivedClassConstructor) { | |||
| 3520 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown::dot_initializers_())) { | |||
| 3521 | return false; | |||
| 3522 | } | |||
| 3523 | #ifdef ENABLE_DECORATORS | |||
| 3524 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown:: | |||
| 3525 | dot_instanceExtraInitializers_())) { | |||
| 3526 | return false; | |||
| 3527 | } | |||
| 3528 | #endif | |||
| 3529 | } | |||
| 3530 | ||||
| 3531 | // See below for an explanation why arrow function parameters and arrow | |||
| 3532 | // function bodies are parsed with different yield/await settings. | |||
| 3533 | { | |||
| 3534 | AwaitHandling awaitHandling = | |||
| 3535 | kind == FunctionSyntaxKind::StaticClassBlock ? AwaitIsDisallowed | |||
| 3536 | : (funbox->isAsync() || | |||
| 3537 | (kind == FunctionSyntaxKind::Arrow && awaitIsKeyword())) | |||
| 3538 | ? AwaitIsKeyword | |||
| 3539 | : AwaitIsName; | |||
| 3540 | AutoAwaitIsKeyword<ParseHandler, Unit> awaitIsKeyword(this, awaitHandling); | |||
| 3541 | AutoInParametersOfAsyncFunction<ParseHandler, Unit> inParameters( | |||
| 3542 | this, funbox->isAsync()); | |||
| 3543 | if (!functionArguments(yieldHandling, kind, *funNode)) { | |||
| 3544 | return false; | |||
| 3545 | } | |||
| 3546 | } | |||
| 3547 | ||||
| 3548 | Maybe<ParseContext::VarScope> varScope; | |||
| 3549 | if (funbox->hasParameterExprs) { | |||
| 3550 | varScope.emplace(this); | |||
| 3551 | if (!varScope->init(pc_)) { | |||
| 3552 | return false; | |||
| 3553 | } | |||
| 3554 | } else { | |||
| 3555 | pc_->functionScope().useAsVarScope(pc_); | |||
| 3556 | } | |||
| 3557 | ||||
| 3558 | if (kind == FunctionSyntaxKind::Arrow) { | |||
| 3559 | TokenKind tt; | |||
| 3560 | if (!tokenStream.peekTokenSameLine(&tt)) { | |||
| 3561 | return false; | |||
| 3562 | } | |||
| 3563 | ||||
| 3564 | if (tt == TokenKind::Eol) { | |||
| 3565 | error(JSMSG_UNEXPECTED_TOKEN, | |||
| 3566 | "'=>' on the same line after an argument list", | |||
| 3567 | TokenKindToDesc(tt)); | |||
| 3568 | return false; | |||
| 3569 | } | |||
| 3570 | if (tt != TokenKind::Arrow) { | |||
| 3571 | error(JSMSG_BAD_ARROW_ARGS); | |||
| 3572 | return false; | |||
| 3573 | } | |||
| 3574 | tokenStream.consumeKnownToken(TokenKind::Arrow); | |||
| 3575 | } | |||
| 3576 | ||||
| 3577 | // When parsing something for new Function() we have to make sure to | |||
| 3578 | // only treat a certain part of the source as a parameter list. | |||
| 3579 | if (parameterListEnd.isSome() && parameterListEnd.value() != pos().begin) { | |||
| 3580 | error(JSMSG_UNEXPECTED_PARAMLIST_END); | |||
| 3581 | return false; | |||
| 3582 | } | |||
| 3583 | ||||
| 3584 | // Parse the function body. | |||
| 3585 | FunctionBodyType bodyType = StatementListBody; | |||
| 3586 | TokenKind tt; | |||
| 3587 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 3588 | return false; | |||
| 3589 | } | |||
| 3590 | uint32_t openedPos = 0; | |||
| 3591 | if (tt != TokenKind::LeftCurly) { | |||
| 3592 | if (kind != FunctionSyntaxKind::Arrow) { | |||
| 3593 | error(JSMSG_CURLY_BEFORE_BODY); | |||
| 3594 | return false; | |||
| 3595 | } | |||
| 3596 | ||||
| 3597 | anyChars.ungetToken(); | |||
| 3598 | bodyType = ExpressionBody; | |||
| 3599 | funbox->setHasExprBody(); | |||
| 3600 | } else { | |||
| 3601 | openedPos = pos().begin; | |||
| 3602 | } | |||
| 3603 | ||||
| 3604 | // Arrow function parameters inherit yieldHandling from the enclosing | |||
| 3605 | // context, but the arrow body doesn't. E.g. in |(a = yield) => yield|, | |||
| 3606 | // |yield| in the parameters is either a name or keyword, depending on | |||
| 3607 | // whether the arrow function is enclosed in a generator function or not. | |||
| 3608 | // Whereas the |yield| in the function body is always parsed as a name. | |||
| 3609 | // The same goes when parsing |await| in arrow functions. | |||
| 3610 | YieldHandling bodyYieldHandling = GetYieldHandling(pc_->generatorKind()); | |||
| 3611 | AwaitHandling bodyAwaitHandling = GetAwaitHandling(pc_->asyncKind()); | |||
| 3612 | bool inheritedStrict = pc_->sc()->strict(); | |||
| 3613 | LexicalScopeNodeType body; | |||
| 3614 | { | |||
| 3615 | AutoAwaitIsKeyword<ParseHandler, Unit> awaitIsKeyword(this, | |||
| 3616 | bodyAwaitHandling); | |||
| 3617 | AutoInParametersOfAsyncFunction<ParseHandler, Unit> inParameters(this, | |||
| 3618 | false); | |||
| 3619 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (functionBody(inHandling, bodyYieldHandling, kind, bodyType)); if ((__builtin_expect(! !(parserTryVarTempResult_.isErr()), 0))) { return (false); } ( body) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 3620 | body, functionBody(inHandling, bodyYieldHandling, kind, bodyType),do { auto parserTryVarTempResult_ = (functionBody(inHandling, bodyYieldHandling, kind, bodyType)); if ((__builtin_expect(! !(parserTryVarTempResult_.isErr()), 0))) { return (false); } ( body) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 3621 | false)do { auto parserTryVarTempResult_ = (functionBody(inHandling, bodyYieldHandling, kind, bodyType)); if ((__builtin_expect(! !(parserTryVarTempResult_.isErr()), 0))) { return (false); } ( body) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 3622 | } | |||
| 3623 | ||||
| 3624 | // Revalidate the function name when we transitioned to strict mode. | |||
| 3625 | if ((kind == FunctionSyntaxKind::Statement || | |||
| 3626 | kind == FunctionSyntaxKind::Expression) && | |||
| 3627 | funbox->explicitName() && !inheritedStrict && pc_->sc()->strict()) { | |||
| 3628 | MOZ_ASSERT(pc_->sc()->hasExplicitUseStrict(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->sc()->hasExplicitUseStrict())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(pc_->sc()->hasExplicitUseStrict()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->sc()->hasExplicitUseStrict()" " (" "strict mode should only change when a 'use strict' directive " "is present" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3630); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->sc()->hasExplicitUseStrict()" ") (" "strict mode should only change when a 'use strict' directive " "is present" ")"); do { *((volatile int*)__null) = 3630; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 3629 | "strict mode should only change when a 'use strict' directive "do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->sc()->hasExplicitUseStrict())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(pc_->sc()->hasExplicitUseStrict()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->sc()->hasExplicitUseStrict()" " (" "strict mode should only change when a 'use strict' directive " "is present" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3630); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->sc()->hasExplicitUseStrict()" ") (" "strict mode should only change when a 'use strict' directive " "is present" ")"); do { *((volatile int*)__null) = 3630; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 3630 | "is present")do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->sc()->hasExplicitUseStrict())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(pc_->sc()->hasExplicitUseStrict()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->sc()->hasExplicitUseStrict()" " (" "strict mode should only change when a 'use strict' directive " "is present" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3630); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->sc()->hasExplicitUseStrict()" ") (" "strict mode should only change when a 'use strict' directive " "is present" ")"); do { *((volatile int*)__null) = 3630; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 3631 | ||||
| 3632 | auto propertyName = funbox->explicitName(); | |||
| 3633 | YieldHandling nameYieldHandling; | |||
| 3634 | if (kind == FunctionSyntaxKind::Expression) { | |||
| 3635 | // Named lambda has binding inside it. | |||
| 3636 | nameYieldHandling = bodyYieldHandling; | |||
| 3637 | } else { | |||
| 3638 | // Otherwise YieldHandling cannot be checked at this point | |||
| 3639 | // because of different context. | |||
| 3640 | // It should already be checked before this point. | |||
| 3641 | nameYieldHandling = YieldIsName; | |||
| 3642 | } | |||
| 3643 | ||||
| 3644 | // We already use the correct await-handling at this point, therefore | |||
| 3645 | // we don't need call AutoAwaitIsKeyword here. | |||
| 3646 | ||||
| 3647 | uint32_t nameOffset = handler_.getFunctionNameOffset(*funNode, anyChars); | |||
| 3648 | if (!checkBindingIdentifier(propertyName, nameOffset, nameYieldHandling)) { | |||
| 3649 | return false; | |||
| 3650 | } | |||
| 3651 | } | |||
| 3652 | ||||
| 3653 | if (bodyType == StatementListBody) { | |||
| 3654 | // Cannot use mustMatchToken here because of internal compiler error on | |||
| 3655 | // gcc 6.4.0, with linux 64 SM hazard build. | |||
| 3656 | TokenKind actual; | |||
| 3657 | if (!tokenStream.getToken(&actual, TokenStream::SlashIsRegExp)) { | |||
| 3658 | return false; | |||
| 3659 | } | |||
| 3660 | if (actual != TokenKind::RightCurly) { | |||
| 3661 | reportMissingClosing(JSMSG_CURLY_AFTER_BODY, JSMSG_CURLY_OPENED, | |||
| 3662 | openedPos); | |||
| 3663 | return false; | |||
| 3664 | } | |||
| 3665 | ||||
| 3666 | setFunctionEndFromCurrentToken(funbox); | |||
| 3667 | } else { | |||
| 3668 | MOZ_ASSERT(kind == FunctionSyntaxKind::Arrow)do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == FunctionSyntaxKind::Arrow)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == FunctionSyntaxKind:: Arrow))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == FunctionSyntaxKind::Arrow", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3668); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == FunctionSyntaxKind::Arrow" ")"); do { *((volatile int*)__null) = 3668; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3669 | ||||
| 3670 | if (anyChars.hadError()) { | |||
| 3671 | return false; | |||
| 3672 | } | |||
| 3673 | ||||
| 3674 | setFunctionEndFromCurrentToken(funbox); | |||
| 3675 | ||||
| 3676 | if (kind == FunctionSyntaxKind::Statement) { | |||
| 3677 | if (!matchOrInsertSemicolon()) { | |||
| 3678 | return false; | |||
| 3679 | } | |||
| 3680 | } | |||
| 3681 | } | |||
| 3682 | ||||
| 3683 | if (IsMethodDefinitionKind(kind) && pc_->superScopeNeedsHomeObject()) { | |||
| 3684 | funbox->setNeedsHomeObject(); | |||
| 3685 | } | |||
| 3686 | ||||
| 3687 | if (!finishFunction(isStandaloneFunction)) { | |||
| 3688 | return false; | |||
| 3689 | } | |||
| 3690 | ||||
| 3691 | handler_.setEndPosition(body, pos().begin); | |||
| 3692 | handler_.setEndPosition(*funNode, pos().end); | |||
| 3693 | handler_.setFunctionBody(*funNode, body); | |||
| 3694 | ||||
| 3695 | return true; | |||
| 3696 | } | |||
| 3697 | ||||
| 3698 | template <class ParseHandler, typename Unit> | |||
| 3699 | typename ParseHandler::FunctionNodeResult | |||
| 3700 | GeneralParser<ParseHandler, Unit>::functionStmt(uint32_t toStringStart, | |||
| 3701 | YieldHandling yieldHandling, | |||
| 3702 | DefaultHandling defaultHandling, | |||
| 3703 | FunctionAsyncKind asyncKind) { | |||
| 3704 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Function))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Function))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Function)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Function)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3704); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Function)" ")"); do { *((volatile int*)__null) = 3704; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3705 | ||||
| 3706 | // In sloppy mode, Annex B.3.2 allows labelled function declarations. | |||
| 3707 | // Otherwise it's a parse error. | |||
| 3708 | ParseContext::Statement* declaredInStmt = pc_->innermostStatement(); | |||
| 3709 | if (declaredInStmt && declaredInStmt->kind() == StatementKind::Label) { | |||
| 3710 | MOZ_ASSERT(!pc_->sc()->strict(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!pc_->sc()->strict())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!pc_->sc()->strict())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!pc_->sc()->strict()" " (" "labeled functions shouldn't be parsed in strict mode" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3711); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!pc_->sc()->strict()" ") (" "labeled functions shouldn't be parsed in strict mode" ")"); do { *((volatile int*)__null) = 3711; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 3711 | "labeled functions shouldn't be parsed in strict mode")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!pc_->sc()->strict())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!pc_->sc()->strict())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!pc_->sc()->strict()" " (" "labeled functions shouldn't be parsed in strict mode" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3711); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!pc_->sc()->strict()" ") (" "labeled functions shouldn't be parsed in strict mode" ")"); do { *((volatile int*)__null) = 3711; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3712 | ||||
| 3713 | // Find the innermost non-label statement. Report an error if it's | |||
| 3714 | // unbraced: functions can't appear in it. Otherwise the statement | |||
| 3715 | // (or its absence) determines the scope the function's bound in. | |||
| 3716 | while (declaredInStmt && declaredInStmt->kind() == StatementKind::Label) { | |||
| 3717 | declaredInStmt = declaredInStmt->enclosing(); | |||
| 3718 | } | |||
| 3719 | ||||
| 3720 | if (declaredInStmt && !StatementKindIsBraced(declaredInStmt->kind())) { | |||
| 3721 | error(JSMSG_SLOPPY_FUNCTION_LABEL); | |||
| 3722 | return errorResult(); | |||
| 3723 | } | |||
| 3724 | } | |||
| 3725 | ||||
| 3726 | TokenKind tt; | |||
| 3727 | if (!tokenStream.getToken(&tt)) { | |||
| 3728 | return errorResult(); | |||
| 3729 | } | |||
| 3730 | ||||
| 3731 | GeneratorKind generatorKind = GeneratorKind::NotGenerator; | |||
| 3732 | if (tt == TokenKind::Mul) { | |||
| 3733 | generatorKind = GeneratorKind::Generator; | |||
| 3734 | if (!tokenStream.getToken(&tt)) { | |||
| 3735 | return errorResult(); | |||
| 3736 | } | |||
| 3737 | } | |||
| 3738 | ||||
| 3739 | TaggedParserAtomIndex name; | |||
| 3740 | if (TokenKindIsPossibleIdentifier(tt)) { | |||
| 3741 | name = bindingIdentifier(yieldHandling); | |||
| 3742 | if (!name) { | |||
| 3743 | return errorResult(); | |||
| 3744 | } | |||
| 3745 | } else if (defaultHandling == AllowDefaultName) { | |||
| 3746 | name = TaggedParserAtomIndex::WellKnown::default_(); | |||
| 3747 | anyChars.ungetToken(); | |||
| 3748 | } else { | |||
| 3749 | /* Unnamed function expressions are forbidden in statement context. */ | |||
| 3750 | error(JSMSG_UNNAMED_FUNCTION_STMT); | |||
| 3751 | return errorResult(); | |||
| 3752 | } | |||
| 3753 | ||||
| 3754 | // Note the declared name and check for early errors. | |||
| 3755 | DeclarationKind kind; | |||
| 3756 | if (declaredInStmt) { | |||
| 3757 | MOZ_ASSERT(declaredInStmt->kind() != StatementKind::Label)do { static_assert( mozilla::detail::AssertionConditionType< decltype(declaredInStmt->kind() != StatementKind::Label)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(declaredInStmt->kind() != StatementKind::Label))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("declaredInStmt->kind() != StatementKind::Label" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3757); AnnotateMozCrashReason("MOZ_ASSERT" "(" "declaredInStmt->kind() != StatementKind::Label" ")"); do { *((volatile int*)__null) = 3757; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3758 | MOZ_ASSERT(StatementKindIsBraced(declaredInStmt->kind()))do { static_assert( mozilla::detail::AssertionConditionType< decltype(StatementKindIsBraced(declaredInStmt->kind()))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(StatementKindIsBraced(declaredInStmt->kind())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("StatementKindIsBraced(declaredInStmt->kind())" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3758); AnnotateMozCrashReason("MOZ_ASSERT" "(" "StatementKindIsBraced(declaredInStmt->kind())" ")"); do { *((volatile int*)__null) = 3758; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3759 | ||||
| 3760 | kind = | |||
| 3761 | (!pc_->sc()->strict() && generatorKind == GeneratorKind::NotGenerator && | |||
| 3762 | asyncKind == FunctionAsyncKind::SyncFunction) | |||
| 3763 | ? DeclarationKind::SloppyLexicalFunction | |||
| 3764 | : DeclarationKind::LexicalFunction; | |||
| 3765 | } else { | |||
| 3766 | kind = pc_->atModuleLevel() ? DeclarationKind::ModuleBodyLevelFunction | |||
| 3767 | : DeclarationKind::BodyLevelFunction; | |||
| 3768 | } | |||
| 3769 | ||||
| 3770 | if (!noteDeclaredName(name, kind, pos())) { | |||
| 3771 | return errorResult(); | |||
| 3772 | } | |||
| 3773 | ||||
| 3774 | FunctionSyntaxKind syntaxKind = FunctionSyntaxKind::Statement; | |||
| 3775 | FunctionNodeType funNode; | |||
| 3776 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, pos()))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 3777 | ||||
| 3778 | // Under sloppy mode, try Annex B.3.3 semantics. If making an additional | |||
| 3779 | // 'var' binding of the same name does not throw an early error, do so. | |||
| 3780 | // This 'var' binding would be assigned the function object when its | |||
| 3781 | // declaration is reached, not at the start of the block. | |||
| 3782 | // | |||
| 3783 | // This semantics is implemented upon Scope exit in | |||
| 3784 | // Scope::propagateAndMarkAnnexBFunctionBoxes. | |||
| 3785 | bool tryAnnexB = kind == DeclarationKind::SloppyLexicalFunction; | |||
| 3786 | ||||
| 3787 | YieldHandling newYieldHandling = GetYieldHandling(generatorKind); | |||
| 3788 | return functionDefinition(funNode, toStringStart, InAllowed, newYieldHandling, | |||
| 3789 | name, syntaxKind, generatorKind, asyncKind, | |||
| 3790 | tryAnnexB); | |||
| 3791 | } | |||
| 3792 | ||||
| 3793 | template <class ParseHandler, typename Unit> | |||
| 3794 | typename ParseHandler::FunctionNodeResult | |||
| 3795 | GeneralParser<ParseHandler, Unit>::functionExpr(uint32_t toStringStart, | |||
| 3796 | InvokedPrediction invoked, | |||
| 3797 | FunctionAsyncKind asyncKind) { | |||
| 3798 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Function))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Function))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Function)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Function)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3798); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Function)" ")"); do { *((volatile int*)__null) = 3798; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3799 | ||||
| 3800 | AutoAwaitIsKeyword<ParseHandler, Unit> awaitIsKeyword( | |||
| 3801 | this, GetAwaitHandling(asyncKind)); | |||
| 3802 | GeneratorKind generatorKind = GeneratorKind::NotGenerator; | |||
| 3803 | TokenKind tt; | |||
| 3804 | if (!tokenStream.getToken(&tt)) { | |||
| 3805 | return errorResult(); | |||
| 3806 | } | |||
| 3807 | ||||
| 3808 | if (tt == TokenKind::Mul) { | |||
| 3809 | generatorKind = GeneratorKind::Generator; | |||
| 3810 | if (!tokenStream.getToken(&tt)) { | |||
| 3811 | return errorResult(); | |||
| 3812 | } | |||
| 3813 | } | |||
| 3814 | ||||
| 3815 | YieldHandling yieldHandling = GetYieldHandling(generatorKind); | |||
| 3816 | ||||
| 3817 | TaggedParserAtomIndex name; | |||
| 3818 | if (TokenKindIsPossibleIdentifier(tt)) { | |||
| 3819 | name = bindingIdentifier(yieldHandling); | |||
| 3820 | if (!name) { | |||
| 3821 | return errorResult(); | |||
| 3822 | } | |||
| 3823 | } else { | |||
| 3824 | anyChars.ungetToken(); | |||
| 3825 | } | |||
| 3826 | ||||
| 3827 | FunctionSyntaxKind syntaxKind = FunctionSyntaxKind::Expression; | |||
| 3828 | FunctionNodeType funNode; | |||
| 3829 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, pos()))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 3830 | ||||
| 3831 | if (invoked) { | |||
| 3832 | funNode = handler_.setLikelyIIFE(funNode); | |||
| 3833 | } | |||
| 3834 | ||||
| 3835 | return functionDefinition(funNode, toStringStart, InAllowed, yieldHandling, | |||
| 3836 | name, syntaxKind, generatorKind, asyncKind); | |||
| 3837 | } | |||
| 3838 | ||||
| 3839 | /* | |||
| 3840 | * Return true if this node, known to be an unparenthesized string literal | |||
| 3841 | * that never contain escape sequences, could be the string of a directive in a | |||
| 3842 | * Directive Prologue. Directive strings never contain escape sequences or line | |||
| 3843 | * continuations. | |||
| 3844 | */ | |||
| 3845 | static inline bool IsUseStrictDirective(const TokenPos& pos, | |||
| 3846 | TaggedParserAtomIndex atom) { | |||
| 3847 | // the length of "use strict", including quotation. | |||
| 3848 | static constexpr size_t useStrictLength = 12; | |||
| 3849 | return atom == TaggedParserAtomIndex::WellKnown::use_strict_() && | |||
| 3850 | pos.begin + useStrictLength == pos.end; | |||
| 3851 | } | |||
| 3852 | static inline bool IsUseAsmDirective(const TokenPos& pos, | |||
| 3853 | TaggedParserAtomIndex atom) { | |||
| 3854 | // the length of "use asm", including quotation. | |||
| 3855 | static constexpr size_t useAsmLength = 9; | |||
| 3856 | return atom == TaggedParserAtomIndex::WellKnown::use_asm_() && | |||
| 3857 | pos.begin + useAsmLength == pos.end; | |||
| 3858 | } | |||
| 3859 | ||||
| 3860 | template <typename Unit> | |||
| 3861 | bool Parser<SyntaxParseHandler, Unit>::asmJS(ListNodeType list) { | |||
| 3862 | // While asm.js could technically be validated and compiled during syntax | |||
| 3863 | // parsing, we have no guarantee that some later JS wouldn't abort the | |||
| 3864 | // syntax parse and cause us to re-parse (and re-compile) the asm.js module. | |||
| 3865 | // For simplicity, unconditionally abort the syntax parse when "use asm" is | |||
| 3866 | // encountered so that asm.js is always validated/compiled exactly once | |||
| 3867 | // during a full parse. | |||
| 3868 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 3868); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 3868; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 3869 | return false; | |||
| 3870 | } | |||
| 3871 | ||||
| 3872 | template <typename Unit> | |||
| 3873 | bool Parser<FullParseHandler, Unit>::asmJS(ListNodeType list) { | |||
| 3874 | // Disable syntax parsing in anything nested inside the asm.js module. | |||
| 3875 | disableSyntaxParser(); | |||
| 3876 | ||||
| 3877 | // We should be encountering the "use asm" directive for the first time; if | |||
| 3878 | // the directive is already, we must have failed asm.js validation and we're | |||
| 3879 | // reparsing. In that case, don't try to validate again. A non-null | |||
| 3880 | // newDirectives means we're not in a normal function. | |||
| 3881 | if (!pc_->newDirectives || pc_->newDirectives->asmJS()) { | |||
| 3882 | return true; | |||
| 3883 | } | |||
| 3884 | ||||
| 3885 | // If there is no ScriptSource, then we are doing a non-compiling parse and | |||
| 3886 | // so we shouldn't (and can't, without a ScriptSource) compile. | |||
| 3887 | if (ss == nullptr) { | |||
| 3888 | return true; | |||
| 3889 | } | |||
| 3890 | ||||
| 3891 | pc_->functionBox()->useAsm = true; | |||
| 3892 | ||||
| 3893 | // Attempt to validate and compile this asm.js module. On success, the | |||
| 3894 | // tokenStream has been advanced to the closing }. On failure, the | |||
| 3895 | // tokenStream is in an indeterminate state and we must reparse the | |||
| 3896 | // function from the beginning. Reparsing is triggered by marking that a | |||
| 3897 | // new directive has been encountered and returning 'false'. | |||
| 3898 | bool validated; | |||
| 3899 | if (!CompileAsmJS(this->fc_, this->parserAtoms(), *this, list, &validated)) { | |||
| 3900 | return false; | |||
| 3901 | } | |||
| 3902 | if (!validated) { | |||
| 3903 | pc_->newDirectives->setAsmJS(); | |||
| 3904 | return false; | |||
| 3905 | } | |||
| 3906 | ||||
| 3907 | return true; | |||
| 3908 | } | |||
| 3909 | ||||
| 3910 | template <class ParseHandler, typename Unit> | |||
| 3911 | inline bool GeneralParser<ParseHandler, Unit>::asmJS(ListNodeType list) { | |||
| 3912 | return asFinalParser()->asmJS(list); | |||
| 3913 | } | |||
| 3914 | ||||
| 3915 | /* | |||
| 3916 | * Recognize Directive Prologue members and directives. Assuming |pn| is a | |||
| 3917 | * candidate for membership in a directive prologue, recognize directives and | |||
| 3918 | * set |pc_|'s flags accordingly. If |pn| is indeed part of a prologue, set its | |||
| 3919 | * |prologue| flag. | |||
| 3920 | * | |||
| 3921 | * Note that the following is a strict mode function: | |||
| 3922 | * | |||
| 3923 | * function foo() { | |||
| 3924 | * "blah" // inserted semi colon | |||
| 3925 | * "blurgh" | |||
| 3926 | * "use\x20loose" | |||
| 3927 | * "use strict" | |||
| 3928 | * } | |||
| 3929 | * | |||
| 3930 | * That is, even though "use\x20loose" can never be a directive, now or in the | |||
| 3931 | * future (because of the hex escape), the Directive Prologue extends through it | |||
| 3932 | * to the "use strict" statement, which is indeed a directive. | |||
| 3933 | */ | |||
| 3934 | template <class ParseHandler, typename Unit> | |||
| 3935 | bool GeneralParser<ParseHandler, Unit>::maybeParseDirective( | |||
| 3936 | ListNodeType list, Node possibleDirective, bool* cont) { | |||
| 3937 | TokenPos directivePos; | |||
| 3938 | TaggedParserAtomIndex directive = | |||
| 3939 | handler_.isStringExprStatement(possibleDirective, &directivePos); | |||
| 3940 | ||||
| 3941 | *cont = !!directive; | |||
| 3942 | if (!*cont) { | |||
| 3943 | return true; | |||
| 3944 | } | |||
| 3945 | ||||
| 3946 | if (IsUseStrictDirective(directivePos, directive)) { | |||
| 3947 | // Functions with non-simple parameter lists (destructuring, | |||
| 3948 | // default or rest parameters) must not contain a "use strict" | |||
| 3949 | // directive. | |||
| 3950 | if (pc_->isFunctionBox()) { | |||
| 3951 | FunctionBox* funbox = pc_->functionBox(); | |||
| 3952 | if (!funbox->hasSimpleParameterList()) { | |||
| 3953 | const char* parameterKind = funbox->hasDestructuringArgs | |||
| 3954 | ? "destructuring" | |||
| 3955 | : funbox->hasParameterExprs ? "default" | |||
| 3956 | : "rest"; | |||
| 3957 | errorAt(directivePos.begin, JSMSG_STRICT_NON_SIMPLE_PARAMS, | |||
| 3958 | parameterKind); | |||
| 3959 | return false; | |||
| 3960 | } | |||
| 3961 | } | |||
| 3962 | ||||
| 3963 | // We're going to be in strict mode. Note that this scope explicitly | |||
| 3964 | // had "use strict"; | |||
| 3965 | pc_->sc()->setExplicitUseStrict(); | |||
| 3966 | if (!pc_->sc()->strict()) { | |||
| 3967 | // Some strict mode violations can appear before a Use Strict Directive | |||
| 3968 | // is applied. (See the |DeprecatedContent| enum initializers.) These | |||
| 3969 | // violations can manifest in two ways. | |||
| 3970 | // | |||
| 3971 | // First, the violation can appear *before* the Use Strict Directive. | |||
| 3972 | // Numeric literals (and therefore octal literals) can only precede a | |||
| 3973 | // Use Strict Directive if this function's parameter list is not simple, | |||
| 3974 | // but we reported an error for non-simple parameter lists above, so | |||
| 3975 | // octal literals present no issue. But octal escapes and \8 and \9 can | |||
| 3976 | // appear in the directive prologue before a Use Strict Directive: | |||
| 3977 | // | |||
| 3978 | // function f() | |||
| 3979 | // { | |||
| 3980 | // "hell\157 world"; // octal escape | |||
| 3981 | // "\8"; "\9"; // NonOctalDecimalEscape | |||
| 3982 | // "use strict"; // retroactively makes all the above errors | |||
| 3983 | // } | |||
| 3984 | // | |||
| 3985 | // Second, the violation can appear *after* the Use Strict Directive but | |||
| 3986 | // *before* the directive is recognized as terminated. This only | |||
| 3987 | // happens when a directive is terminated by ASI, and the next token | |||
| 3988 | // contains a violation: | |||
| 3989 | // | |||
| 3990 | // function a() | |||
| 3991 | // { | |||
| 3992 | // "use strict" // ASI | |||
| 3993 | // 0755; | |||
| 3994 | // } | |||
| 3995 | // function b() | |||
| 3996 | // { | |||
| 3997 | // "use strict" // ASI | |||
| 3998 | // "hell\157 world"; | |||
| 3999 | // } | |||
| 4000 | // function c() | |||
| 4001 | // { | |||
| 4002 | // "use strict" // ASI | |||
| 4003 | // "\8"; | |||
| 4004 | // } | |||
| 4005 | // | |||
| 4006 | // We note such violations when tokenizing. Then, if a violation has | |||
| 4007 | // been observed at the time a "use strict" is applied, we report the | |||
| 4008 | // error. | |||
| 4009 | switch (anyChars.sawDeprecatedContent()) { | |||
| 4010 | case DeprecatedContent::None: | |||
| 4011 | break; | |||
| 4012 | case DeprecatedContent::OctalLiteral: | |||
| 4013 | error(JSMSG_DEPRECATED_OCTAL_LITERAL); | |||
| 4014 | return false; | |||
| 4015 | case DeprecatedContent::OctalEscape: | |||
| 4016 | error(JSMSG_DEPRECATED_OCTAL_ESCAPE); | |||
| 4017 | return false; | |||
| 4018 | case DeprecatedContent::EightOrNineEscape: | |||
| 4019 | error(JSMSG_DEPRECATED_EIGHT_OR_NINE_ESCAPE); | |||
| 4020 | return false; | |||
| 4021 | } | |||
| 4022 | ||||
| 4023 | pc_->sc()->setStrictScript(); | |||
| 4024 | } | |||
| 4025 | } else if (IsUseAsmDirective(directivePos, directive)) { | |||
| 4026 | if (pc_->isFunctionBox()) { | |||
| 4027 | return asmJS(list); | |||
| 4028 | } | |||
| 4029 | return warningAt(directivePos.begin, JSMSG_USE_ASM_DIRECTIVE_FAIL); | |||
| 4030 | } | |||
| 4031 | return true; | |||
| 4032 | } | |||
| 4033 | ||||
| 4034 | template <class ParseHandler, typename Unit> | |||
| 4035 | typename ParseHandler::ListNodeResult | |||
| 4036 | GeneralParser<ParseHandler, Unit>::statementList(YieldHandling yieldHandling) { | |||
| 4037 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 4038 | if (!recursion.check(this->fc_)) { | |||
| 4039 | return errorResult(); | |||
| 4040 | } | |||
| 4041 | ||||
| 4042 | ListNodeType stmtList; | |||
| 4043 | MOZ_TRY_VAR(stmtList, handler_.newStatementList(pos()))do { auto mozTryVarTempResult_ = (handler_.newStatementList(pos ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (stmtList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4044 | ||||
| 4045 | bool canHaveDirectives = pc_->atBodyLevel(); | |||
| 4046 | if (canHaveDirectives) { | |||
| 4047 | // Clear flags for deprecated content that might have been seen in an | |||
| 4048 | // enclosing context. | |||
| 4049 | anyChars.clearSawDeprecatedContent(); | |||
| 4050 | } | |||
| 4051 | ||||
| 4052 | bool canHaveHashbangComment = pc_->atTopLevel(); | |||
| 4053 | if (canHaveHashbangComment) { | |||
| 4054 | tokenStream.consumeOptionalHashbangComment(); | |||
| 4055 | } | |||
| 4056 | ||||
| 4057 | bool afterReturn = false; | |||
| 4058 | bool warnedAboutStatementsAfterReturn = false; | |||
| 4059 | uint32_t statementBegin = 0; | |||
| 4060 | for (;;) { | |||
| 4061 | TokenKind tt = TokenKind::Eof; | |||
| 4062 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 4063 | if (anyChars.isEOF()) { | |||
| 4064 | isUnexpectedEOF_ = true; | |||
| 4065 | } | |||
| 4066 | return errorResult(); | |||
| 4067 | } | |||
| 4068 | if (tt == TokenKind::Eof || tt == TokenKind::RightCurly) { | |||
| 4069 | TokenPos pos; | |||
| 4070 | if (!tokenStream.peekTokenPos(&pos, TokenStream::SlashIsRegExp)) { | |||
| 4071 | return errorResult(); | |||
| 4072 | } | |||
| 4073 | handler_.setListEndPosition(stmtList, pos); | |||
| 4074 | break; | |||
| 4075 | } | |||
| 4076 | if (afterReturn) { | |||
| 4077 | if (!tokenStream.peekOffset(&statementBegin, | |||
| 4078 | TokenStream::SlashIsRegExp)) { | |||
| 4079 | return errorResult(); | |||
| 4080 | } | |||
| 4081 | } | |||
| 4082 | auto nextResult = statementListItem(yieldHandling, canHaveDirectives); | |||
| 4083 | if (nextResult.isErr()) { | |||
| 4084 | if (anyChars.isEOF()) { | |||
| 4085 | isUnexpectedEOF_ = true; | |||
| 4086 | } | |||
| 4087 | return errorResult(); | |||
| 4088 | } | |||
| 4089 | Node next = nextResult.unwrap(); | |||
| 4090 | if (!warnedAboutStatementsAfterReturn) { | |||
| 4091 | if (afterReturn) { | |||
| 4092 | if (!handler_.isStatementPermittedAfterReturnStatement(next)) { | |||
| 4093 | if (!warningAt(statementBegin, JSMSG_STMT_AFTER_RETURN)) { | |||
| 4094 | return errorResult(); | |||
| 4095 | } | |||
| 4096 | ||||
| 4097 | warnedAboutStatementsAfterReturn = true; | |||
| 4098 | } | |||
| 4099 | } else if (handler_.isReturnStatement(next)) { | |||
| 4100 | afterReturn = true; | |||
| 4101 | } | |||
| 4102 | } | |||
| 4103 | ||||
| 4104 | if (canHaveDirectives) { | |||
| 4105 | if (!maybeParseDirective(stmtList, next, &canHaveDirectives)) { | |||
| 4106 | return errorResult(); | |||
| 4107 | } | |||
| 4108 | } | |||
| 4109 | ||||
| 4110 | handler_.addStatementToList(stmtList, next); | |||
| 4111 | } | |||
| 4112 | ||||
| 4113 | return stmtList; | |||
| 4114 | } | |||
| 4115 | ||||
| 4116 | template <class ParseHandler, typename Unit> | |||
| 4117 | typename ParseHandler::NodeResult GeneralParser<ParseHandler, Unit>::condition( | |||
| 4118 | InHandling inHandling, YieldHandling yieldHandling) { | |||
| 4119 | if (!mustMatchToken(TokenKind::LeftParen, JSMSG_PAREN_BEFORE_COND)) { | |||
| 4120 | return errorResult(); | |||
| 4121 | } | |||
| 4122 | ||||
| 4123 | Node pn; | |||
| 4124 | MOZ_TRY_VAR(pn, exprInParens(inHandling, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (exprInParens(inHandling, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (pn) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4125 | ||||
| 4126 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_COND)) { | |||
| 4127 | return errorResult(); | |||
| 4128 | } | |||
| 4129 | ||||
| 4130 | return pn; | |||
| 4131 | } | |||
| 4132 | ||||
| 4133 | template <class ParseHandler, typename Unit> | |||
| 4134 | bool GeneralParser<ParseHandler, Unit>::matchLabel( | |||
| 4135 | YieldHandling yieldHandling, TaggedParserAtomIndex* labelOut) { | |||
| 4136 | MOZ_ASSERT(labelOut != nullptr)do { static_assert( mozilla::detail::AssertionConditionType< decltype(labelOut != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(labelOut != nullptr))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("labelOut != nullptr" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4136); AnnotateMozCrashReason("MOZ_ASSERT" "(" "labelOut != nullptr" ")"); do { *((volatile int*)__null) = 4136; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4137 | TokenKind tt = TokenKind::Eof; | |||
| 4138 | if (!tokenStream.peekTokenSameLine(&tt, TokenStream::SlashIsRegExp)) { | |||
| 4139 | return false; | |||
| 4140 | } | |||
| 4141 | ||||
| 4142 | if (TokenKindIsPossibleIdentifier(tt)) { | |||
| 4143 | tokenStream.consumeKnownToken(tt, TokenStream::SlashIsRegExp); | |||
| 4144 | ||||
| 4145 | *labelOut = labelIdentifier(yieldHandling); | |||
| 4146 | if (!*labelOut) { | |||
| 4147 | return false; | |||
| 4148 | } | |||
| 4149 | } else { | |||
| 4150 | *labelOut = TaggedParserAtomIndex::null(); | |||
| 4151 | } | |||
| 4152 | return true; | |||
| 4153 | } | |||
| 4154 | ||||
| 4155 | template <class ParseHandler, typename Unit> | |||
| 4156 | GeneralParser<ParseHandler, Unit>::PossibleError::PossibleError( | |||
| 4157 | GeneralParser<ParseHandler, Unit>& parser) | |||
| 4158 | : parser_(parser) {} | |||
| 4159 | ||||
| 4160 | template <class ParseHandler, typename Unit> | |||
| 4161 | typename GeneralParser<ParseHandler, Unit>::PossibleError::Error& | |||
| 4162 | GeneralParser<ParseHandler, Unit>::PossibleError::error(ErrorKind kind) { | |||
| 4163 | if (kind == ErrorKind::Expression) { | |||
| 4164 | return exprError_; | |||
| 4165 | } | |||
| 4166 | if (kind == ErrorKind::Destructuring) { | |||
| 4167 | return destructuringError_; | |||
| 4168 | } | |||
| 4169 | MOZ_ASSERT(kind == ErrorKind::DestructuringWarning)do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ErrorKind::DestructuringWarning)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(kind == ErrorKind::DestructuringWarning))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == ErrorKind::DestructuringWarning" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4169); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ErrorKind::DestructuringWarning" ")"); do { *((volatile int*)__null) = 4169; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4170 | return destructuringWarning_; | |||
| 4171 | } | |||
| 4172 | ||||
| 4173 | template <class ParseHandler, typename Unit> | |||
| 4174 | void GeneralParser<ParseHandler, Unit>::PossibleError::setResolved( | |||
| 4175 | ErrorKind kind) { | |||
| 4176 | error(kind).state_ = ErrorState::None; | |||
| 4177 | } | |||
| 4178 | ||||
| 4179 | template <class ParseHandler, typename Unit> | |||
| 4180 | bool GeneralParser<ParseHandler, Unit>::PossibleError::hasError( | |||
| 4181 | ErrorKind kind) { | |||
| 4182 | return error(kind).state_ == ErrorState::Pending; | |||
| 4183 | } | |||
| 4184 | ||||
| 4185 | template <class ParseHandler, typename Unit> | |||
| 4186 | bool GeneralParser<ParseHandler, | |||
| 4187 | Unit>::PossibleError::hasPendingDestructuringError() { | |||
| 4188 | return hasError(ErrorKind::Destructuring); | |||
| 4189 | } | |||
| 4190 | ||||
| 4191 | template <class ParseHandler, typename Unit> | |||
| 4192 | void GeneralParser<ParseHandler, Unit>::PossibleError::setPending( | |||
| 4193 | ErrorKind kind, const TokenPos& pos, unsigned errorNumber) { | |||
| 4194 | // Don't overwrite a previously recorded error. | |||
| 4195 | if (hasError(kind)) { | |||
| 4196 | return; | |||
| 4197 | } | |||
| 4198 | ||||
| 4199 | // If we report an error later, we'll do it from the position where we set | |||
| 4200 | // the state to pending. | |||
| 4201 | Error& err = error(kind); | |||
| 4202 | err.offset_ = pos.begin; | |||
| 4203 | err.errorNumber_ = errorNumber; | |||
| 4204 | err.state_ = ErrorState::Pending; | |||
| 4205 | } | |||
| 4206 | ||||
| 4207 | template <class ParseHandler, typename Unit> | |||
| 4208 | void GeneralParser<ParseHandler, Unit>::PossibleError:: | |||
| 4209 | setPendingDestructuringErrorAt(const TokenPos& pos, unsigned errorNumber) { | |||
| 4210 | setPending(ErrorKind::Destructuring, pos, errorNumber); | |||
| 4211 | } | |||
| 4212 | ||||
| 4213 | template <class ParseHandler, typename Unit> | |||
| 4214 | void GeneralParser<ParseHandler, Unit>::PossibleError:: | |||
| 4215 | setPendingDestructuringWarningAt(const TokenPos& pos, | |||
| 4216 | unsigned errorNumber) { | |||
| 4217 | setPending(ErrorKind::DestructuringWarning, pos, errorNumber); | |||
| 4218 | } | |||
| 4219 | ||||
| 4220 | template <class ParseHandler, typename Unit> | |||
| 4221 | void GeneralParser<ParseHandler, Unit>::PossibleError:: | |||
| 4222 | setPendingExpressionErrorAt(const TokenPos& pos, unsigned errorNumber) { | |||
| 4223 | setPending(ErrorKind::Expression, pos, errorNumber); | |||
| 4224 | } | |||
| 4225 | ||||
| 4226 | template <class ParseHandler, typename Unit> | |||
| 4227 | bool GeneralParser<ParseHandler, Unit>::PossibleError::checkForError( | |||
| 4228 | ErrorKind kind) { | |||
| 4229 | if (!hasError(kind)) { | |||
| 4230 | return true; | |||
| 4231 | } | |||
| 4232 | ||||
| 4233 | Error& err = error(kind); | |||
| 4234 | parser_.errorAt(err.offset_, err.errorNumber_); | |||
| 4235 | return false; | |||
| 4236 | } | |||
| 4237 | ||||
| 4238 | template <class ParseHandler, typename Unit> | |||
| 4239 | bool GeneralParser<ParseHandler, | |||
| 4240 | Unit>::PossibleError::checkForDestructuringErrorOrWarning() { | |||
| 4241 | // Clear pending expression error, because we're definitely not in an | |||
| 4242 | // expression context. | |||
| 4243 | setResolved(ErrorKind::Expression); | |||
| 4244 | ||||
| 4245 | // Report any pending destructuring error. | |||
| 4246 | return checkForError(ErrorKind::Destructuring); | |||
| 4247 | } | |||
| 4248 | ||||
| 4249 | template <class ParseHandler, typename Unit> | |||
| 4250 | bool GeneralParser<ParseHandler, | |||
| 4251 | Unit>::PossibleError::checkForExpressionError() { | |||
| 4252 | // Clear pending destructuring error, because we're definitely not | |||
| 4253 | // in a destructuring context. | |||
| 4254 | setResolved(ErrorKind::Destructuring); | |||
| 4255 | setResolved(ErrorKind::DestructuringWarning); | |||
| 4256 | ||||
| 4257 | // Report any pending expression error. | |||
| 4258 | return checkForError(ErrorKind::Expression); | |||
| 4259 | } | |||
| 4260 | ||||
| 4261 | template <class ParseHandler, typename Unit> | |||
| 4262 | void GeneralParser<ParseHandler, Unit>::PossibleError::transferErrorTo( | |||
| 4263 | ErrorKind kind, PossibleError* other) { | |||
| 4264 | if (hasError(kind) && !other->hasError(kind)) { | |||
| 4265 | Error& err = error(kind); | |||
| 4266 | Error& otherErr = other->error(kind); | |||
| 4267 | otherErr.offset_ = err.offset_; | |||
| 4268 | otherErr.errorNumber_ = err.errorNumber_; | |||
| 4269 | otherErr.state_ = err.state_; | |||
| 4270 | } | |||
| 4271 | } | |||
| 4272 | ||||
| 4273 | template <class ParseHandler, typename Unit> | |||
| 4274 | void GeneralParser<ParseHandler, Unit>::PossibleError::transferErrorsTo( | |||
| 4275 | PossibleError* other) { | |||
| 4276 | MOZ_ASSERT(other)do { static_assert( mozilla::detail::AssertionConditionType< decltype(other)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(other))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("other", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4276); AnnotateMozCrashReason("MOZ_ASSERT" "(" "other" ")") ; do { *((volatile int*)__null) = 4276; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4277 | MOZ_ASSERT(this != other)do { static_assert( mozilla::detail::AssertionConditionType< decltype(this != other)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(this != other))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("this != other", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4277); AnnotateMozCrashReason("MOZ_ASSERT" "(" "this != other" ")"); do { *((volatile int*)__null) = 4277; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4278 | MOZ_ASSERT(&parser_ == &other->parser_,do { static_assert( mozilla::detail::AssertionConditionType< decltype(&parser_ == &other->parser_)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(&parser_ == &other->parser_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("&parser_ == &other->parser_" " (" "Can't transfer fields to an instance which belongs to a " "different parser" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4280); AnnotateMozCrashReason("MOZ_ASSERT" "(" "&parser_ == &other->parser_" ") (" "Can't transfer fields to an instance which belongs to a " "different parser" ")"); do { *((volatile int*)__null) = 4280 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 4279 | "Can't transfer fields to an instance which belongs to a "do { static_assert( mozilla::detail::AssertionConditionType< decltype(&parser_ == &other->parser_)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(&parser_ == &other->parser_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("&parser_ == &other->parser_" " (" "Can't transfer fields to an instance which belongs to a " "different parser" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4280); AnnotateMozCrashReason("MOZ_ASSERT" "(" "&parser_ == &other->parser_" ") (" "Can't transfer fields to an instance which belongs to a " "different parser" ")"); do { *((volatile int*)__null) = 4280 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 4280 | "different parser")do { static_assert( mozilla::detail::AssertionConditionType< decltype(&parser_ == &other->parser_)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(&parser_ == &other->parser_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("&parser_ == &other->parser_" " (" "Can't transfer fields to an instance which belongs to a " "different parser" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4280); AnnotateMozCrashReason("MOZ_ASSERT" "(" "&parser_ == &other->parser_" ") (" "Can't transfer fields to an instance which belongs to a " "different parser" ")"); do { *((volatile int*)__null) = 4280 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 4281 | ||||
| 4282 | transferErrorTo(ErrorKind::Destructuring, other); | |||
| 4283 | transferErrorTo(ErrorKind::Expression, other); | |||
| 4284 | } | |||
| 4285 | ||||
| 4286 | template <class ParseHandler, typename Unit> | |||
| 4287 | typename ParseHandler::BinaryNodeResult | |||
| 4288 | GeneralParser<ParseHandler, Unit>::bindingInitializer( | |||
| 4289 | Node lhs, DeclarationKind kind, YieldHandling yieldHandling) { | |||
| 4290 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Assign))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Assign))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Assign)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Assign)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4290); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Assign)" ")"); do { *((volatile int*)__null) = 4290; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4291 | ||||
| 4292 | if (kind == DeclarationKind::FormalParameter) { | |||
| 4293 | pc_->functionBox()->hasParameterExprs = true; | |||
| 4294 | } | |||
| 4295 | ||||
| 4296 | Node rhs; | |||
| 4297 | MOZ_TRY_VAR(rhs, assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (rhs) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4298 | ||||
| 4299 | BinaryNodeType assign; | |||
| 4300 | MOZ_TRY_VAR(assign,do { auto mozTryVarTempResult_ = (handler_.newAssignment(ParseNodeKind ::AssignExpr, lhs, rhs)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (assign) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4301 | handler_.newAssignment(ParseNodeKind::AssignExpr, lhs, rhs))do { auto mozTryVarTempResult_ = (handler_.newAssignment(ParseNodeKind ::AssignExpr, lhs, rhs)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (assign) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4302 | ||||
| 4303 | return assign; | |||
| 4304 | } | |||
| 4305 | ||||
| 4306 | template <class ParseHandler, typename Unit> | |||
| 4307 | typename ParseHandler::NameNodeResult | |||
| 4308 | GeneralParser<ParseHandler, Unit>::bindingIdentifier( | |||
| 4309 | DeclarationKind kind, YieldHandling yieldHandling) { | |||
| 4310 | TaggedParserAtomIndex name = bindingIdentifier(yieldHandling); | |||
| 4311 | if (!name) { | |||
| 4312 | return errorResult(); | |||
| 4313 | } | |||
| 4314 | ||||
| 4315 | NameNodeType binding; | |||
| 4316 | MOZ_TRY_VAR(binding, newName(name))do { auto mozTryVarTempResult_ = (newName(name)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4317 | if (!noteDeclaredName(name, kind, pos())) { | |||
| 4318 | return errorResult(); | |||
| 4319 | } | |||
| 4320 | ||||
| 4321 | return binding; | |||
| 4322 | } | |||
| 4323 | ||||
| 4324 | template <class ParseHandler, typename Unit> | |||
| 4325 | typename ParseHandler::NodeResult | |||
| 4326 | GeneralParser<ParseHandler, Unit>::bindingIdentifierOrPattern( | |||
| 4327 | DeclarationKind kind, YieldHandling yieldHandling, TokenKind tt) { | |||
| 4328 | if (tt == TokenKind::LeftBracket) { | |||
| 4329 | return arrayBindingPattern(kind, yieldHandling); | |||
| 4330 | } | |||
| 4331 | ||||
| 4332 | if (tt == TokenKind::LeftCurly) { | |||
| 4333 | return objectBindingPattern(kind, yieldHandling); | |||
| 4334 | } | |||
| 4335 | ||||
| 4336 | if (!TokenKindIsPossibleIdentifierName(tt)) { | |||
| 4337 | error(JSMSG_NO_VARIABLE_NAME); | |||
| 4338 | return errorResult(); | |||
| 4339 | } | |||
| 4340 | ||||
| 4341 | return bindingIdentifier(kind, yieldHandling); | |||
| 4342 | } | |||
| 4343 | ||||
| 4344 | template <class ParseHandler, typename Unit> | |||
| 4345 | typename ParseHandler::ListNodeResult | |||
| 4346 | GeneralParser<ParseHandler, Unit>::objectBindingPattern( | |||
| 4347 | DeclarationKind kind, YieldHandling yieldHandling) { | |||
| 4348 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftCurly))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftCurly))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftCurly)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftCurly)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4348); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftCurly)" ")"); do { *((volatile int*)__null) = 4348; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4349 | ||||
| 4350 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 4351 | if (!recursion.check(this->fc_)) { | |||
| 4352 | return errorResult(); | |||
| 4353 | } | |||
| 4354 | ||||
| 4355 | uint32_t begin = pos().begin; | |||
| 4356 | ListNodeType literal; | |||
| 4357 | MOZ_TRY_VAR(literal, handler_.newObjectLiteral(begin))do { auto mozTryVarTempResult_ = (handler_.newObjectLiteral(begin )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (literal) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4358 | ||||
| 4359 | Maybe<DeclarationKind> declKind = Some(kind); | |||
| 4360 | TaggedParserAtomIndex propAtom; | |||
| 4361 | for (;;) { | |||
| 4362 | TokenKind tt; | |||
| 4363 | if (!tokenStream.peekToken(&tt)) { | |||
| 4364 | return errorResult(); | |||
| 4365 | } | |||
| 4366 | if (tt == TokenKind::RightCurly) { | |||
| 4367 | break; | |||
| 4368 | } | |||
| 4369 | ||||
| 4370 | if (tt == TokenKind::TripleDot) { | |||
| 4371 | tokenStream.consumeKnownToken(TokenKind::TripleDot); | |||
| 4372 | uint32_t begin = pos().begin; | |||
| 4373 | ||||
| 4374 | TokenKind tt; | |||
| 4375 | if (!tokenStream.getToken(&tt)) { | |||
| 4376 | return errorResult(); | |||
| 4377 | } | |||
| 4378 | ||||
| 4379 | if (!TokenKindIsPossibleIdentifierName(tt)) { | |||
| 4380 | error(JSMSG_NO_VARIABLE_NAME); | |||
| 4381 | return errorResult(); | |||
| 4382 | } | |||
| 4383 | ||||
| 4384 | NameNodeType inner; | |||
| 4385 | MOZ_TRY_VAR(inner, bindingIdentifier(kind, yieldHandling))do { auto mozTryVarTempResult_ = (bindingIdentifier(kind, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4386 | ||||
| 4387 | if (!handler_.addSpreadProperty(literal, begin, inner)) { | |||
| 4388 | return errorResult(); | |||
| 4389 | } | |||
| 4390 | } else { | |||
| 4391 | TokenPos namePos = anyChars.nextToken().pos; | |||
| 4392 | ||||
| 4393 | PropertyType propType; | |||
| 4394 | Node propName; | |||
| 4395 | MOZ_TRY_VAR(propName, propertyOrMethodName(do { auto mozTryVarTempResult_ = (propertyOrMethodName( yieldHandling , PropertyNameInPattern, declKind, literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4396 | yieldHandling, PropertyNameInPattern, declKind,do { auto mozTryVarTempResult_ = (propertyOrMethodName( yieldHandling , PropertyNameInPattern, declKind, literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4397 | literal, &propType, &propAtom))do { auto mozTryVarTempResult_ = (propertyOrMethodName( yieldHandling , PropertyNameInPattern, declKind, literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4398 | ||||
| 4399 | if (propType == PropertyType::Normal) { | |||
| 4400 | // Handle e.g., |var {p: x} = o| and |var {p: x=0} = o|. | |||
| 4401 | ||||
| 4402 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 4403 | return errorResult(); | |||
| 4404 | } | |||
| 4405 | ||||
| 4406 | Node binding; | |||
| 4407 | MOZ_TRY_VAR(binding,do { auto mozTryVarTempResult_ = (bindingIdentifierOrPattern( kind, yieldHandling, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4408 | bindingIdentifierOrPattern(kind, yieldHandling, tt))do { auto mozTryVarTempResult_ = (bindingIdentifierOrPattern( kind, yieldHandling, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4409 | ||||
| 4410 | bool hasInitializer; | |||
| 4411 | if (!tokenStream.matchToken(&hasInitializer, TokenKind::Assign, | |||
| 4412 | TokenStream::SlashIsRegExp)) { | |||
| 4413 | return errorResult(); | |||
| 4414 | } | |||
| 4415 | ||||
| 4416 | Node bindingExpr; | |||
| 4417 | if (hasInitializer) { | |||
| 4418 | MOZ_TRY_VAR(bindingExpr,do { auto mozTryVarTempResult_ = (bindingInitializer(binding, kind, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (bindingExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4419 | bindingInitializer(binding, kind, yieldHandling))do { auto mozTryVarTempResult_ = (bindingInitializer(binding, kind, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (bindingExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4420 | } else { | |||
| 4421 | bindingExpr = binding; | |||
| 4422 | } | |||
| 4423 | ||||
| 4424 | if (!handler_.addPropertyDefinition(literal, propName, bindingExpr)) { | |||
| 4425 | return errorResult(); | |||
| 4426 | } | |||
| 4427 | } else if (propType == PropertyType::Shorthand) { | |||
| 4428 | // Handle e.g., |var {x, y} = o| as destructuring shorthand | |||
| 4429 | // for |var {x: x, y: y} = o|. | |||
| 4430 | MOZ_ASSERT(TokenKindIsPossibleIdentifierName(tt))do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifierName(tt))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(TokenKindIsPossibleIdentifierName(tt)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("TokenKindIsPossibleIdentifierName(tt)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4430); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifierName(tt)" ")"); do { *((volatile int*)__null) = 4430; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4431 | ||||
| 4432 | NameNodeType binding; | |||
| 4433 | MOZ_TRY_VAR(binding, bindingIdentifier(kind, yieldHandling))do { auto mozTryVarTempResult_ = (bindingIdentifier(kind, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4434 | ||||
| 4435 | if (!handler_.addShorthand(literal, handler_.asNameNode(propName), | |||
| 4436 | binding)) { | |||
| 4437 | return errorResult(); | |||
| 4438 | } | |||
| 4439 | } else if (propType == PropertyType::CoverInitializedName) { | |||
| 4440 | // Handle e.g., |var {x=1, y=2} = o| as destructuring | |||
| 4441 | // shorthand with default values. | |||
| 4442 | MOZ_ASSERT(TokenKindIsPossibleIdentifierName(tt))do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifierName(tt))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(TokenKindIsPossibleIdentifierName(tt)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("TokenKindIsPossibleIdentifierName(tt)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4442); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifierName(tt)" ")"); do { *((volatile int*)__null) = 4442; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4443 | ||||
| 4444 | NameNodeType binding; | |||
| 4445 | MOZ_TRY_VAR(binding, bindingIdentifier(kind, yieldHandling))do { auto mozTryVarTempResult_ = (bindingIdentifier(kind, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4446 | ||||
| 4447 | tokenStream.consumeKnownToken(TokenKind::Assign); | |||
| 4448 | ||||
| 4449 | BinaryNodeType bindingExpr; | |||
| 4450 | MOZ_TRY_VAR(bindingExpr,do { auto mozTryVarTempResult_ = (bindingInitializer(binding, kind, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (bindingExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4451 | bindingInitializer(binding, kind, yieldHandling))do { auto mozTryVarTempResult_ = (bindingInitializer(binding, kind, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (bindingExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4452 | ||||
| 4453 | if (!handler_.addPropertyDefinition(literal, propName, bindingExpr)) { | |||
| 4454 | return errorResult(); | |||
| 4455 | } | |||
| 4456 | } else { | |||
| 4457 | errorAt(namePos.begin, JSMSG_NO_VARIABLE_NAME); | |||
| 4458 | return errorResult(); | |||
| 4459 | } | |||
| 4460 | } | |||
| 4461 | ||||
| 4462 | bool matched; | |||
| 4463 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 4464 | TokenStream::SlashIsInvalid)) { | |||
| 4465 | return errorResult(); | |||
| 4466 | } | |||
| 4467 | if (!matched) { | |||
| 4468 | break; | |||
| 4469 | } | |||
| 4470 | if (tt == TokenKind::TripleDot) { | |||
| 4471 | error(JSMSG_REST_WITH_COMMA); | |||
| 4472 | return errorResult(); | |||
| 4473 | } | |||
| 4474 | } | |||
| 4475 | ||||
| 4476 | if (!mustMatchToken(TokenKind::RightCurly, [this, begin](TokenKind actual) { | |||
| 4477 | this->reportMissingClosing(JSMSG_CURLY_AFTER_LIST, JSMSG_CURLY_OPENED, | |||
| 4478 | begin); | |||
| 4479 | })) { | |||
| 4480 | return errorResult(); | |||
| 4481 | } | |||
| 4482 | ||||
| 4483 | handler_.setEndPosition(literal, pos().end); | |||
| 4484 | return literal; | |||
| 4485 | } | |||
| 4486 | ||||
| 4487 | template <class ParseHandler, typename Unit> | |||
| 4488 | typename ParseHandler::ListNodeResult | |||
| 4489 | GeneralParser<ParseHandler, Unit>::arrayBindingPattern( | |||
| 4490 | DeclarationKind kind, YieldHandling yieldHandling) { | |||
| 4491 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftBracket))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftBracket)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftBracket)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftBracket)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4491); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftBracket)" ")"); do { *((volatile int*)__null) = 4491; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4492 | ||||
| 4493 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 4494 | if (!recursion.check(this->fc_)) { | |||
| 4495 | return errorResult(); | |||
| 4496 | } | |||
| 4497 | ||||
| 4498 | uint32_t begin = pos().begin; | |||
| 4499 | ListNodeType literal; | |||
| 4500 | MOZ_TRY_VAR(literal, handler_.newArrayLiteral(begin))do { auto mozTryVarTempResult_ = (handler_.newArrayLiteral(begin )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (literal) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4501 | ||||
| 4502 | uint32_t index = 0; | |||
| 4503 | for (;; index++) { | |||
| 4504 | if (index >= NativeObject::MAX_DENSE_ELEMENTS_COUNT) { | |||
| 4505 | error(JSMSG_ARRAY_INIT_TOO_BIG); | |||
| 4506 | return errorResult(); | |||
| 4507 | } | |||
| 4508 | ||||
| 4509 | TokenKind tt; | |||
| 4510 | if (!tokenStream.getToken(&tt)) { | |||
| 4511 | return errorResult(); | |||
| 4512 | } | |||
| 4513 | ||||
| 4514 | if (tt == TokenKind::RightBracket) { | |||
| 4515 | anyChars.ungetToken(); | |||
| 4516 | break; | |||
| 4517 | } | |||
| 4518 | ||||
| 4519 | if (tt == TokenKind::Comma) { | |||
| 4520 | if (!handler_.addElision(literal, pos())) { | |||
| 4521 | return errorResult(); | |||
| 4522 | } | |||
| 4523 | } else if (tt == TokenKind::TripleDot) { | |||
| 4524 | uint32_t begin = pos().begin; | |||
| 4525 | ||||
| 4526 | TokenKind tt; | |||
| 4527 | if (!tokenStream.getToken(&tt)) { | |||
| 4528 | return errorResult(); | |||
| 4529 | } | |||
| 4530 | ||||
| 4531 | Node inner; | |||
| 4532 | MOZ_TRY_VAR(inner, bindingIdentifierOrPattern(kind, yieldHandling, tt))do { auto mozTryVarTempResult_ = (bindingIdentifierOrPattern( kind, yieldHandling, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4533 | ||||
| 4534 | if (!handler_.addSpreadElement(literal, begin, inner)) { | |||
| 4535 | return errorResult(); | |||
| 4536 | } | |||
| 4537 | } else { | |||
| 4538 | Node binding; | |||
| 4539 | MOZ_TRY_VAR(binding, bindingIdentifierOrPattern(kind, yieldHandling, tt))do { auto mozTryVarTempResult_ = (bindingIdentifierOrPattern( kind, yieldHandling, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4540 | ||||
| 4541 | bool hasInitializer; | |||
| 4542 | if (!tokenStream.matchToken(&hasInitializer, TokenKind::Assign, | |||
| 4543 | TokenStream::SlashIsRegExp)) { | |||
| 4544 | return errorResult(); | |||
| 4545 | } | |||
| 4546 | ||||
| 4547 | Node element; | |||
| 4548 | if (hasInitializer) { | |||
| 4549 | MOZ_TRY_VAR(element, bindingInitializer(binding, kind, yieldHandling))do { auto mozTryVarTempResult_ = (bindingInitializer(binding, kind, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (element) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4550 | } else { | |||
| 4551 | element = binding; | |||
| 4552 | } | |||
| 4553 | ||||
| 4554 | handler_.addArrayElement(literal, element); | |||
| 4555 | } | |||
| 4556 | ||||
| 4557 | if (tt != TokenKind::Comma) { | |||
| 4558 | // If we didn't already match TokenKind::Comma in above case. | |||
| 4559 | bool matched; | |||
| 4560 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 4561 | TokenStream::SlashIsRegExp)) { | |||
| 4562 | return errorResult(); | |||
| 4563 | } | |||
| 4564 | if (!matched) { | |||
| 4565 | break; | |||
| 4566 | } | |||
| 4567 | ||||
| 4568 | if (tt == TokenKind::TripleDot) { | |||
| 4569 | error(JSMSG_REST_WITH_COMMA); | |||
| 4570 | return errorResult(); | |||
| 4571 | } | |||
| 4572 | } | |||
| 4573 | } | |||
| 4574 | ||||
| 4575 | if (!mustMatchToken(TokenKind::RightBracket, [this, begin](TokenKind actual) { | |||
| 4576 | this->reportMissingClosing(JSMSG_BRACKET_AFTER_LIST, | |||
| 4577 | JSMSG_BRACKET_OPENED, begin); | |||
| 4578 | })) { | |||
| 4579 | return errorResult(); | |||
| 4580 | } | |||
| 4581 | ||||
| 4582 | handler_.setEndPosition(literal, pos().end); | |||
| 4583 | return literal; | |||
| 4584 | } | |||
| 4585 | ||||
| 4586 | template <class ParseHandler, typename Unit> | |||
| 4587 | typename ParseHandler::NodeResult | |||
| 4588 | GeneralParser<ParseHandler, Unit>::destructuringDeclaration( | |||
| 4589 | DeclarationKind kind, YieldHandling yieldHandling, TokenKind tt) { | |||
| 4590 | MOZ_ASSERT(anyChars.isCurrentTokenType(tt))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(tt))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( tt)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(tt)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4590); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(tt)" ")"); do { *((volatile int*)__null) = 4590; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4591 | MOZ_ASSERT(tt == TokenKind::LeftBracket || tt == TokenKind::LeftCurly)do { static_assert( mozilla::detail::AssertionConditionType< decltype(tt == TokenKind::LeftBracket || tt == TokenKind::LeftCurly )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(tt == TokenKind::LeftBracket || tt == TokenKind::LeftCurly ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "tt == TokenKind::LeftBracket || tt == TokenKind::LeftCurly", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4591); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tt == TokenKind::LeftBracket || tt == TokenKind::LeftCurly" ")"); do { *((volatile int*)__null) = 4591; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4592 | ||||
| 4593 | if (tt == TokenKind::LeftBracket) { | |||
| 4594 | return arrayBindingPattern(kind, yieldHandling); | |||
| 4595 | } | |||
| 4596 | return objectBindingPattern(kind, yieldHandling); | |||
| 4597 | } | |||
| 4598 | ||||
| 4599 | template <class ParseHandler, typename Unit> | |||
| 4600 | typename ParseHandler::NodeResult | |||
| 4601 | GeneralParser<ParseHandler, Unit>::destructuringDeclarationWithoutYieldOrAwait( | |||
| 4602 | DeclarationKind kind, YieldHandling yieldHandling, TokenKind tt) { | |||
| 4603 | uint32_t startYieldOffset = pc_->lastYieldOffset; | |||
| 4604 | uint32_t startAwaitOffset = pc_->lastAwaitOffset; | |||
| 4605 | ||||
| 4606 | Node res; | |||
| 4607 | MOZ_TRY_VAR(res, destructuringDeclaration(kind, yieldHandling, tt))do { auto mozTryVarTempResult_ = (destructuringDeclaration(kind , yieldHandling, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (res) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4608 | ||||
| 4609 | if (pc_->lastYieldOffset != startYieldOffset) { | |||
| 4610 | errorAt(pc_->lastYieldOffset, JSMSG_YIELD_IN_PARAMETER); | |||
| 4611 | return errorResult(); | |||
| 4612 | } | |||
| 4613 | if (pc_->lastAwaitOffset != startAwaitOffset) { | |||
| 4614 | errorAt(pc_->lastAwaitOffset, JSMSG_AWAIT_IN_PARAMETER); | |||
| 4615 | return errorResult(); | |||
| 4616 | } | |||
| 4617 | return res; | |||
| 4618 | } | |||
| 4619 | ||||
| 4620 | template <class ParseHandler, typename Unit> | |||
| 4621 | typename ParseHandler::LexicalScopeNodeResult | |||
| 4622 | GeneralParser<ParseHandler, Unit>::blockStatement(YieldHandling yieldHandling, | |||
| 4623 | unsigned errorNumber) { | |||
| 4624 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftCurly))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftCurly))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftCurly)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftCurly)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4624); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftCurly)" ")"); do { *((volatile int*)__null) = 4624; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4625 | uint32_t openedPos = pos().begin; | |||
| 4626 | ||||
| 4627 | ParseContext::Statement stmt(pc_, StatementKind::Block); | |||
| 4628 | ParseContext::Scope scope(this); | |||
| 4629 | if (!scope.init(pc_)) { | |||
| 4630 | return errorResult(); | |||
| 4631 | } | |||
| 4632 | ||||
| 4633 | ListNodeType list; | |||
| 4634 | MOZ_TRY_VAR(list, statementList(yieldHandling))do { auto mozTryVarTempResult_ = (statementList(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (list) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 4635 | ||||
| 4636 | if (!mustMatchToken(TokenKind::RightCurly, [this, errorNumber, | |||
| 4637 | openedPos](TokenKind actual) { | |||
| 4638 | this->reportMissingClosing(errorNumber, JSMSG_CURLY_OPENED, openedPos); | |||
| 4639 | })) { | |||
| 4640 | return errorResult(); | |||
| 4641 | } | |||
| 4642 | ||||
| 4643 | return finishLexicalScope(scope, list); | |||
| 4644 | } | |||
| 4645 | ||||
| 4646 | template <class ParseHandler, typename Unit> | |||
| 4647 | typename ParseHandler::NodeResult | |||
| 4648 | GeneralParser<ParseHandler, Unit>::expressionAfterForInOrOf( | |||
| 4649 | ParseNodeKind forHeadKind, YieldHandling yieldHandling) { | |||
| 4650 | MOZ_ASSERT(forHeadKind == ParseNodeKind::ForIn ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(forHeadKind == ParseNodeKind::ForIn || forHeadKind == ParseNodeKind::ForOf)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(forHeadKind == ParseNodeKind ::ForIn || forHeadKind == ParseNodeKind::ForOf))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("forHeadKind == ParseNodeKind::ForIn || forHeadKind == ParseNodeKind::ForOf" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4651); AnnotateMozCrashReason("MOZ_ASSERT" "(" "forHeadKind == ParseNodeKind::ForIn || forHeadKind == ParseNodeKind::ForOf" ")"); do { *((volatile int*)__null) = 4651; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4651 | forHeadKind == ParseNodeKind::ForOf)do { static_assert( mozilla::detail::AssertionConditionType< decltype(forHeadKind == ParseNodeKind::ForIn || forHeadKind == ParseNodeKind::ForOf)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(forHeadKind == ParseNodeKind ::ForIn || forHeadKind == ParseNodeKind::ForOf))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("forHeadKind == ParseNodeKind::ForIn || forHeadKind == ParseNodeKind::ForOf" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4651); AnnotateMozCrashReason("MOZ_ASSERT" "(" "forHeadKind == ParseNodeKind::ForIn || forHeadKind == ParseNodeKind::ForOf" ")"); do { *((volatile int*)__null) = 4651; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4652 | if (forHeadKind == ParseNodeKind::ForOf) { | |||
| 4653 | return assignExpr(InAllowed, yieldHandling, TripledotProhibited); | |||
| 4654 | } | |||
| 4655 | ||||
| 4656 | return expr(InAllowed, yieldHandling, TripledotProhibited); | |||
| 4657 | } | |||
| 4658 | ||||
| 4659 | template <class ParseHandler, typename Unit> | |||
| 4660 | typename ParseHandler::NodeResult | |||
| 4661 | GeneralParser<ParseHandler, Unit>::declarationPattern( | |||
| 4662 | DeclarationKind declKind, TokenKind tt, bool initialDeclaration, | |||
| 4663 | YieldHandling yieldHandling, ParseNodeKind* forHeadKind, | |||
| 4664 | Node* forInOrOfExpression) { | |||
| 4665 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftBracket) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars.isCurrentTokenType(TokenKind::LeftCurly))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars .isCurrentTokenType(TokenKind::LeftCurly)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars.isCurrentTokenType(TokenKind::LeftCurly)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4666); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars.isCurrentTokenType(TokenKind::LeftCurly)" ")"); do { *((volatile int*)__null) = 4666; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4666 | anyChars.isCurrentTokenType(TokenKind::LeftCurly))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars.isCurrentTokenType(TokenKind::LeftCurly))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars .isCurrentTokenType(TokenKind::LeftCurly)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars.isCurrentTokenType(TokenKind::LeftCurly)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4666); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftBracket) || anyChars.isCurrentTokenType(TokenKind::LeftCurly)" ")"); do { *((volatile int*)__null) = 4666; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4667 | ||||
| 4668 | Node pattern; | |||
| 4669 | MOZ_TRY_VAR(pattern, destructuringDeclaration(declKind, yieldHandling, tt))do { auto mozTryVarTempResult_ = (destructuringDeclaration(declKind , yieldHandling, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (pattern) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4670 | ||||
| 4671 | if (initialDeclaration && forHeadKind) { | |||
| 4672 | bool isForIn, isForOf; | |||
| 4673 | if (!matchInOrOf(&isForIn, &isForOf)) { | |||
| 4674 | return errorResult(); | |||
| 4675 | } | |||
| 4676 | ||||
| 4677 | if (isForIn) { | |||
| 4678 | *forHeadKind = ParseNodeKind::ForIn; | |||
| 4679 | } else if (isForOf) { | |||
| 4680 | *forHeadKind = ParseNodeKind::ForOf; | |||
| 4681 | } else { | |||
| 4682 | *forHeadKind = ParseNodeKind::ForHead; | |||
| 4683 | } | |||
| 4684 | ||||
| 4685 | if (*forHeadKind != ParseNodeKind::ForHead) { | |||
| 4686 | MOZ_TRY_VAR(*forInOrOfExpression,do { auto mozTryVarTempResult_ = (expressionAfterForInOrOf(*forHeadKind , yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (*forInOrOfExpression) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4687 | expressionAfterForInOrOf(*forHeadKind, yieldHandling))do { auto mozTryVarTempResult_ = (expressionAfterForInOrOf(*forHeadKind , yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (*forInOrOfExpression) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4688 | ||||
| 4689 | return pattern; | |||
| 4690 | } | |||
| 4691 | } | |||
| 4692 | ||||
| 4693 | if (!mustMatchToken(TokenKind::Assign, JSMSG_BAD_DESTRUCT_DECL)) { | |||
| 4694 | return errorResult(); | |||
| 4695 | } | |||
| 4696 | ||||
| 4697 | Node init; | |||
| 4698 | MOZ_TRY_VAR(init, assignExpr(forHeadKind ? InProhibited : InAllowed,do { auto mozTryVarTempResult_ = (assignExpr(forHeadKind ? InProhibited : InAllowed, yieldHandling, TripledotProhibited)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (init) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4699 | yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(forHeadKind ? InProhibited : InAllowed, yieldHandling, TripledotProhibited)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (init) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4700 | ||||
| 4701 | return handler_.newAssignment(ParseNodeKind::AssignExpr, pattern, init); | |||
| 4702 | } | |||
| 4703 | ||||
| 4704 | template <class ParseHandler, typename Unit> | |||
| 4705 | typename ParseHandler::AssignmentNodeResult | |||
| 4706 | GeneralParser<ParseHandler, Unit>::initializerInNameDeclaration( | |||
| 4707 | NameNodeType binding, DeclarationKind declKind, bool initialDeclaration, | |||
| 4708 | YieldHandling yieldHandling, ParseNodeKind* forHeadKind, | |||
| 4709 | Node* forInOrOfExpression) { | |||
| 4710 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Assign))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Assign))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Assign)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Assign)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4710); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Assign)" ")"); do { *((volatile int*)__null) = 4710; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4711 | ||||
| 4712 | uint32_t initializerOffset; | |||
| 4713 | if (!tokenStream.peekOffset(&initializerOffset, TokenStream::SlashIsRegExp)) { | |||
| 4714 | return errorResult(); | |||
| 4715 | } | |||
| 4716 | ||||
| 4717 | Node initializer; | |||
| 4718 | MOZ_TRY_VAR(initializer, assignExpr(forHeadKind ? InProhibited : InAllowed,do { auto mozTryVarTempResult_ = (assignExpr(forHeadKind ? InProhibited : InAllowed, yieldHandling, TripledotProhibited)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializer) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 4719 | yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(forHeadKind ? InProhibited : InAllowed, yieldHandling, TripledotProhibited)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializer) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 4720 | ||||
| 4721 | if (forHeadKind && initialDeclaration) { | |||
| 4722 | bool isForIn, isForOf; | |||
| 4723 | if (!matchInOrOf(&isForIn, &isForOf)) { | |||
| 4724 | return errorResult(); | |||
| 4725 | } | |||
| 4726 | ||||
| 4727 | // An initialized declaration can't appear in a for-of: | |||
| 4728 | // | |||
| 4729 | // for (var/let/const x = ... of ...); // BAD | |||
| 4730 | if (isForOf) { | |||
| 4731 | errorAt(initializerOffset, JSMSG_OF_AFTER_FOR_LOOP_DECL); | |||
| 4732 | return errorResult(); | |||
| 4733 | } | |||
| 4734 | ||||
| 4735 | if (isForIn) { | |||
| 4736 | // Lexical declarations in for-in loops can't be initialized: | |||
| 4737 | // | |||
| 4738 | // for (let/const x = ... in ...); // BAD | |||
| 4739 | if (DeclarationKindIsLexical(declKind)) { | |||
| 4740 | errorAt(initializerOffset, JSMSG_IN_AFTER_LEXICAL_FOR_DECL); | |||
| 4741 | return errorResult(); | |||
| 4742 | } | |||
| 4743 | ||||
| 4744 | // This leaves only initialized for-in |var| declarations. ES6 | |||
| 4745 | // forbids these; later ES un-forbids in non-strict mode code. | |||
| 4746 | *forHeadKind = ParseNodeKind::ForIn; | |||
| 4747 | if (!strictModeErrorAt(initializerOffset, | |||
| 4748 | JSMSG_INVALID_FOR_IN_DECL_WITH_INIT)) { | |||
| 4749 | return errorResult(); | |||
| 4750 | } | |||
| 4751 | ||||
| 4752 | MOZ_TRY_VAR(do { auto mozTryVarTempResult_ = (expressionAfterForInOrOf(ParseNodeKind ::ForIn, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (*forInOrOfExpression) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4753 | *forInOrOfExpression,do { auto mozTryVarTempResult_ = (expressionAfterForInOrOf(ParseNodeKind ::ForIn, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (*forInOrOfExpression) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4754 | expressionAfterForInOrOf(ParseNodeKind::ForIn, yieldHandling))do { auto mozTryVarTempResult_ = (expressionAfterForInOrOf(ParseNodeKind ::ForIn, yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (*forInOrOfExpression) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4755 | } else { | |||
| 4756 | *forHeadKind = ParseNodeKind::ForHead; | |||
| 4757 | } | |||
| 4758 | } | |||
| 4759 | ||||
| 4760 | return handler_.finishInitializerAssignment(binding, initializer); | |||
| 4761 | } | |||
| 4762 | ||||
| 4763 | template <class ParseHandler, typename Unit> | |||
| 4764 | typename ParseHandler::NodeResult | |||
| 4765 | GeneralParser<ParseHandler, Unit>::declarationName(DeclarationKind declKind, | |||
| 4766 | TokenKind tt, | |||
| 4767 | bool initialDeclaration, | |||
| 4768 | YieldHandling yieldHandling, | |||
| 4769 | ParseNodeKind* forHeadKind, | |||
| 4770 | Node* forInOrOfExpression) { | |||
| 4771 | // Anything other than possible identifier is an error. | |||
| 4772 | if (!TokenKindIsPossibleIdentifier(tt)) { | |||
| 4773 | error(JSMSG_NO_VARIABLE_NAME); | |||
| 4774 | return errorResult(); | |||
| 4775 | } | |||
| 4776 | ||||
| 4777 | TaggedParserAtomIndex name = bindingIdentifier(yieldHandling); | |||
| 4778 | if (!name) { | |||
| 4779 | return errorResult(); | |||
| 4780 | } | |||
| 4781 | ||||
| 4782 | NameNodeType binding; | |||
| 4783 | MOZ_TRY_VAR(binding, newName(name))do { auto mozTryVarTempResult_ = (newName(name)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4784 | ||||
| 4785 | TokenPos namePos = pos(); | |||
| 4786 | ||||
| 4787 | // The '=' context after a variable name in a declaration is an opportunity | |||
| 4788 | // for ASI, and thus for the next token to start an ExpressionStatement: | |||
| 4789 | // | |||
| 4790 | // var foo // VariableDeclaration | |||
| 4791 | // /bar/g; // ExpressionStatement | |||
| 4792 | // | |||
| 4793 | // Therefore get the token here with SlashIsRegExp. | |||
| 4794 | bool matched; | |||
| 4795 | if (!tokenStream.matchToken(&matched, TokenKind::Assign, | |||
| 4796 | TokenStream::SlashIsRegExp)) { | |||
| 4797 | return errorResult(); | |||
| 4798 | } | |||
| 4799 | ||||
| 4800 | Node declaration; | |||
| 4801 | if (matched) { | |||
| 4802 | MOZ_TRY_VAR(declaration,do { auto mozTryVarTempResult_ = (initializerInNameDeclaration (binding, declKind, initialDeclaration, yieldHandling, forHeadKind , forInOrOfExpression)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (declaration) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4803 | initializerInNameDeclaration(binding, declKind,do { auto mozTryVarTempResult_ = (initializerInNameDeclaration (binding, declKind, initialDeclaration, yieldHandling, forHeadKind , forInOrOfExpression)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (declaration) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4804 | initialDeclaration, yieldHandling,do { auto mozTryVarTempResult_ = (initializerInNameDeclaration (binding, declKind, initialDeclaration, yieldHandling, forHeadKind , forInOrOfExpression)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (declaration) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4805 | forHeadKind, forInOrOfExpression))do { auto mozTryVarTempResult_ = (initializerInNameDeclaration (binding, declKind, initialDeclaration, yieldHandling, forHeadKind , forInOrOfExpression)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (declaration) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4806 | } else { | |||
| 4807 | declaration = binding; | |||
| 4808 | ||||
| 4809 | if (initialDeclaration && forHeadKind) { | |||
| 4810 | bool isForIn, isForOf; | |||
| 4811 | if (!matchInOrOf(&isForIn, &isForOf)) { | |||
| 4812 | return errorResult(); | |||
| 4813 | } | |||
| 4814 | ||||
| 4815 | if (isForIn) { | |||
| 4816 | *forHeadKind = ParseNodeKind::ForIn; | |||
| 4817 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 4818 | if (declKind == DeclarationKind::Using || | |||
| 4819 | declKind == DeclarationKind::AwaitUsing) { | |||
| 4820 | errorAt(namePos.begin, JSMSG_NO_IN_WITH_USING); | |||
| 4821 | return errorResult(); | |||
| 4822 | } | |||
| 4823 | #endif | |||
| 4824 | } else if (isForOf) { | |||
| 4825 | *forHeadKind = ParseNodeKind::ForOf; | |||
| 4826 | } else { | |||
| 4827 | *forHeadKind = ParseNodeKind::ForHead; | |||
| 4828 | } | |||
| 4829 | } | |||
| 4830 | ||||
| 4831 | if (forHeadKind && *forHeadKind != ParseNodeKind::ForHead) { | |||
| 4832 | MOZ_TRY_VAR(*forInOrOfExpression,do { auto mozTryVarTempResult_ = (expressionAfterForInOrOf(*forHeadKind , yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (*forInOrOfExpression) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4833 | expressionAfterForInOrOf(*forHeadKind, yieldHandling))do { auto mozTryVarTempResult_ = (expressionAfterForInOrOf(*forHeadKind , yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (*forInOrOfExpression) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4834 | } else { | |||
| 4835 | // Normal const declarations, and const declarations in for(;;) | |||
| 4836 | // heads, must be initialized. | |||
| 4837 | if (declKind == DeclarationKind::Const) { | |||
| 4838 | errorAt(namePos.begin, JSMSG_BAD_CONST_DECL); | |||
| 4839 | return errorResult(); | |||
| 4840 | } | |||
| 4841 | } | |||
| 4842 | } | |||
| 4843 | ||||
| 4844 | // Note the declared name after knowing whether or not we are in a for-of | |||
| 4845 | // loop, due to special early error semantics in Annex B.3.5. | |||
| 4846 | if (!noteDeclaredName(name, declKind, namePos)) { | |||
| 4847 | return errorResult(); | |||
| 4848 | } | |||
| 4849 | ||||
| 4850 | return declaration; | |||
| 4851 | } | |||
| 4852 | ||||
| 4853 | template <class ParseHandler, typename Unit> | |||
| 4854 | typename ParseHandler::DeclarationListNodeResult | |||
| 4855 | GeneralParser<ParseHandler, Unit>::declarationList( | |||
| 4856 | YieldHandling yieldHandling, ParseNodeKind kind, | |||
| 4857 | ParseNodeKind* forHeadKind /* = nullptr */, | |||
| 4858 | Node* forInOrOfExpression /* = nullptr */) { | |||
| 4859 | MOZ_ASSERT(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind ::LetDecl || kind == ParseNodeKind::ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind ::AwaitUsingDecl endif)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind:: ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDecl endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4865); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" ")"); do { *((volatile int*)__null) = 4865; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4860 | kind == ParseNodeKind::ConstDecldo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind ::LetDecl || kind == ParseNodeKind::ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind ::AwaitUsingDecl endif)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind:: ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDecl endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4865); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" ")"); do { *((volatile int*)__null) = 4865; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4861 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENTdo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind ::LetDecl || kind == ParseNodeKind::ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind ::AwaitUsingDecl endif)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind:: ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDecl endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4865); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" ")"); do { *((volatile int*)__null) = 4865; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4862 | || kind == ParseNodeKind::UsingDecl ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind ::LetDecl || kind == ParseNodeKind::ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind ::AwaitUsingDecl endif)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind:: ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDecl endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4865); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" ")"); do { *((volatile int*)__null) = 4865; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4863 | kind == ParseNodeKind::AwaitUsingDecldo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind ::LetDecl || kind == ParseNodeKind::ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind ::AwaitUsingDecl endif)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind:: ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDecl endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4865); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" ")"); do { *((volatile int*)__null) = 4865; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4864 | #endifdo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind ::LetDecl || kind == ParseNodeKind::ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind ::AwaitUsingDecl endif)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind:: ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDecl endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4865); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" ")"); do { *((volatile int*)__null) = 4865; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4865 | )do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind ::LetDecl || kind == ParseNodeKind::ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind ::AwaitUsingDecl endif)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind:: ConstDecl ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDecl endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4865); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == ParseNodeKind::VarStmt || kind == ParseNodeKind::LetDecl || kind == ParseNodeKind::ConstDeclifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == ParseNodeKind::UsingDecl || kind == ParseNodeKind::AwaitUsingDeclendif" ")"); do { *((volatile int*)__null) = 4865; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4866 | ||||
| 4867 | DeclarationKind declKind; | |||
| 4868 | switch (kind) { | |||
| 4869 | case ParseNodeKind::VarStmt: | |||
| 4870 | declKind = DeclarationKind::Var; | |||
| 4871 | break; | |||
| 4872 | case ParseNodeKind::ConstDecl: | |||
| 4873 | declKind = DeclarationKind::Const; | |||
| 4874 | break; | |||
| 4875 | case ParseNodeKind::LetDecl: | |||
| 4876 | declKind = DeclarationKind::Let; | |||
| 4877 | break; | |||
| 4878 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 4879 | case ParseNodeKind::UsingDecl: | |||
| 4880 | declKind = DeclarationKind::Using; | |||
| 4881 | break; | |||
| 4882 | case ParseNodeKind::AwaitUsingDecl: | |||
| 4883 | declKind = DeclarationKind::AwaitUsing; | |||
| 4884 | break; | |||
| 4885 | #endif | |||
| 4886 | default: | |||
| 4887 | MOZ_CRASH("Unknown declaration kind")do { do { } while (false); MOZ_ReportCrash("" "Unknown declaration kind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4887); AnnotateMozCrashReason("MOZ_CRASH(" "Unknown declaration kind" ")"); do { *((volatile int*)__null) = 4887; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 4888 | } | |||
| 4889 | ||||
| 4890 | DeclarationListNodeType decl; | |||
| 4891 | MOZ_TRY_VAR(decl, handler_.newDeclarationList(kind, pos()))do { auto mozTryVarTempResult_ = (handler_.newDeclarationList (kind, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (decl) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4892 | ||||
| 4893 | bool moreDeclarations; | |||
| 4894 | bool initialDeclaration = true; | |||
| 4895 | do { | |||
| 4896 | MOZ_ASSERT_IF(!initialDeclaration && forHeadKind,do { if (!initialDeclaration && forHeadKind) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(*forHeadKind == ParseNodeKind::ForHead)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*forHeadKind == ParseNodeKind ::ForHead))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("*forHeadKind == ParseNodeKind::ForHead", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4897); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*forHeadKind == ParseNodeKind::ForHead" ")"); do { *((volatile int*)__null) = 4897; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 4897 | *forHeadKind == ParseNodeKind::ForHead)do { if (!initialDeclaration && forHeadKind) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(*forHeadKind == ParseNodeKind::ForHead)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*forHeadKind == ParseNodeKind ::ForHead))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("*forHeadKind == ParseNodeKind::ForHead", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4897); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*forHeadKind == ParseNodeKind::ForHead" ")"); do { *((volatile int*)__null) = 4897; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 4898 | ||||
| 4899 | TokenKind tt; | |||
| 4900 | if (!tokenStream.getToken(&tt)) { | |||
| 4901 | return errorResult(); | |||
| 4902 | } | |||
| 4903 | ||||
| 4904 | Node binding; | |||
| 4905 | if (tt == TokenKind::LeftBracket || tt == TokenKind::LeftCurly) { | |||
| 4906 | MOZ_TRY_VAR(binding, declarationPattern(declKind, tt, initialDeclaration,do { auto mozTryVarTempResult_ = (declarationPattern(declKind , tt, initialDeclaration, yieldHandling, forHeadKind, forInOrOfExpression )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4907 | yieldHandling, forHeadKind,do { auto mozTryVarTempResult_ = (declarationPattern(declKind , tt, initialDeclaration, yieldHandling, forHeadKind, forInOrOfExpression )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4908 | forInOrOfExpression))do { auto mozTryVarTempResult_ = (declarationPattern(declKind , tt, initialDeclaration, yieldHandling, forHeadKind, forInOrOfExpression )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4909 | } else { | |||
| 4910 | MOZ_TRY_VAR(binding, declarationName(declKind, tt, initialDeclaration,do { auto mozTryVarTempResult_ = (declarationName(declKind, tt , initialDeclaration, yieldHandling, forHeadKind, forInOrOfExpression )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4911 | yieldHandling, forHeadKind,do { auto mozTryVarTempResult_ = (declarationName(declKind, tt , initialDeclaration, yieldHandling, forHeadKind, forInOrOfExpression )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 4912 | forInOrOfExpression))do { auto mozTryVarTempResult_ = (declarationName(declKind, tt , initialDeclaration, yieldHandling, forHeadKind, forInOrOfExpression )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (binding) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4913 | } | |||
| 4914 | ||||
| 4915 | handler_.addList(decl, binding); | |||
| 4916 | ||||
| 4917 | // If we have a for-in/of loop, the above call matches the entirety | |||
| 4918 | // of the loop head (up to the closing parenthesis). | |||
| 4919 | if (forHeadKind && *forHeadKind != ParseNodeKind::ForHead) { | |||
| 4920 | break; | |||
| 4921 | } | |||
| 4922 | ||||
| 4923 | initialDeclaration = false; | |||
| 4924 | ||||
| 4925 | if (!tokenStream.matchToken(&moreDeclarations, TokenKind::Comma, | |||
| 4926 | TokenStream::SlashIsRegExp)) { | |||
| 4927 | return errorResult(); | |||
| 4928 | } | |||
| 4929 | } while (moreDeclarations); | |||
| 4930 | ||||
| 4931 | return decl; | |||
| 4932 | } | |||
| 4933 | ||||
| 4934 | template <class ParseHandler, typename Unit> | |||
| 4935 | typename ParseHandler::DeclarationListNodeResult | |||
| 4936 | GeneralParser<ParseHandler, Unit>::lexicalDeclaration( | |||
| 4937 | YieldHandling yieldHandling, DeclarationKind kind) { | |||
| 4938 | MOZ_ASSERT(kind == DeclarationKind::Const || kind == DeclarationKind::Letdo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == DeclarationKind::Const || kind == DeclarationKind ::Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(kind == DeclarationKind::Const || kind == DeclarationKind:: Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" ")"); do { *((volatile int*)__null) = 4943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4939 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENTdo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == DeclarationKind::Const || kind == DeclarationKind ::Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(kind == DeclarationKind::Const || kind == DeclarationKind:: Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" ")"); do { *((volatile int*)__null) = 4943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4940 | || kind == DeclarationKind::Using ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == DeclarationKind::Const || kind == DeclarationKind ::Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(kind == DeclarationKind::Const || kind == DeclarationKind:: Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" ")"); do { *((volatile int*)__null) = 4943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4941 | kind == DeclarationKind::AwaitUsingdo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == DeclarationKind::Const || kind == DeclarationKind ::Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(kind == DeclarationKind::Const || kind == DeclarationKind:: Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" ")"); do { *((volatile int*)__null) = 4943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4942 | #endifdo { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == DeclarationKind::Const || kind == DeclarationKind ::Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(kind == DeclarationKind::Const || kind == DeclarationKind:: Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" ")"); do { *((volatile int*)__null) = 4943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 4943 | )do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == DeclarationKind::Const || kind == DeclarationKind ::Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(kind == DeclarationKind::Const || kind == DeclarationKind:: Let ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind ::Using || kind == DeclarationKind::AwaitUsing endif))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == DeclarationKind::Const || kind == DeclarationKind::Letifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT || kind == DeclarationKind::Using || kind == DeclarationKind::AwaitUsingendif" ")"); do { *((volatile int*)__null) = 4943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4944 | ||||
| 4945 | if (options().selfHostingMode) { | |||
| 4946 | error(JSMSG_SELFHOSTED_LEXICAL); | |||
| 4947 | return errorResult(); | |||
| 4948 | } | |||
| 4949 | ||||
| 4950 | /* | |||
| 4951 | * Parse body-level lets without a new block object. ES6 specs | |||
| 4952 | * that an execution environment's initial lexical environment | |||
| 4953 | * is the VariableEnvironment, i.e., body-level lets are in | |||
| 4954 | * the same environment record as vars. | |||
| 4955 | * | |||
| 4956 | * However, they cannot be parsed exactly as vars, as ES6 | |||
| 4957 | * requires that uninitialized lets throw ReferenceError on use. | |||
| 4958 | * | |||
| 4959 | * See 8.1.1.1.6 and the note in 13.2.1. | |||
| 4960 | */ | |||
| 4961 | DeclarationListNodeType decl; | |||
| 4962 | ParseNodeKind pnk; | |||
| 4963 | switch (kind) { | |||
| 4964 | case DeclarationKind::Const: | |||
| 4965 | pnk = ParseNodeKind::ConstDecl; | |||
| 4966 | break; | |||
| 4967 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 4968 | case DeclarationKind::Using: | |||
| 4969 | pnk = ParseNodeKind::UsingDecl; | |||
| 4970 | break; | |||
| 4971 | case DeclarationKind::AwaitUsing: | |||
| 4972 | pnk = ParseNodeKind::AwaitUsingDecl; | |||
| 4973 | break; | |||
| 4974 | #endif | |||
| 4975 | case DeclarationKind::Let: | |||
| 4976 | pnk = ParseNodeKind::LetDecl; | |||
| 4977 | break; | |||
| 4978 | default: | |||
| 4979 | MOZ_CRASH("unexpected node kind")do { do { } while (false); MOZ_ReportCrash("" "unexpected node kind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4979); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected node kind" ")"); do { *((volatile int*)__null) = 4979; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 4980 | } | |||
| 4981 | MOZ_TRY_VAR(decl, declarationList(yieldHandling, pnk))do { auto mozTryVarTempResult_ = (declarationList(yieldHandling , pnk)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr( )), 0))) { return mozTryVarTempResult_.propagateErr(); } (decl ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 4982 | if (!matchOrInsertSemicolon()) { | |||
| 4983 | return errorResult(); | |||
| 4984 | } | |||
| 4985 | ||||
| 4986 | return decl; | |||
| 4987 | } | |||
| 4988 | ||||
| 4989 | template <class ParseHandler, typename Unit> | |||
| 4990 | typename ParseHandler::NameNodeResult | |||
| 4991 | GeneralParser<ParseHandler, Unit>::moduleExportName() { | |||
| 4992 | MOZ_ASSERT(anyChars.currentToken().type == TokenKind::String)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.currentToken().type == TokenKind::String)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.currentToken().type == TokenKind::String))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.currentToken().type == TokenKind::String" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 4992); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.currentToken().type == TokenKind::String" ")"); do { *((volatile int*)__null) = 4992; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 4993 | TaggedParserAtomIndex name = anyChars.currentToken().atom(); | |||
| 4994 | if (!this->parserAtoms().isModuleExportName(name)) { | |||
| 4995 | error(JSMSG_UNPAIRED_SURROGATE_EXPORT); | |||
| 4996 | return errorResult(); | |||
| 4997 | } | |||
| 4998 | return handler_.newStringLiteral(name, pos()); | |||
| 4999 | } | |||
| 5000 | ||||
| 5001 | template <class ParseHandler, typename Unit> | |||
| 5002 | bool GeneralParser<ParseHandler, Unit>::withClause(ListNodeType attributesSet) { | |||
| 5003 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Assert) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Assert) || anyChars .isCurrentTokenType(TokenKind::With))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Assert) || anyChars.isCurrentTokenType(TokenKind:: With)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Assert) || anyChars.isCurrentTokenType(TokenKind::With)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5004); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Assert) || anyChars.isCurrentTokenType(TokenKind::With)" ")"); do { *((volatile int*)__null) = 5004; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 5004 | anyChars.isCurrentTokenType(TokenKind::With))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Assert) || anyChars .isCurrentTokenType(TokenKind::With))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Assert) || anyChars.isCurrentTokenType(TokenKind:: With)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Assert) || anyChars.isCurrentTokenType(TokenKind::With)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5004); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Assert) || anyChars.isCurrentTokenType(TokenKind::With)" ")"); do { *((volatile int*)__null) = 5004; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5005 | ||||
| 5006 | if (!options().importAttributes()) { | |||
| 5007 | error(JSMSG_IMPORT_ASSERTIONS_NOT_SUPPORTED); | |||
| 5008 | return false; | |||
| 5009 | } | |||
| 5010 | ||||
| 5011 | if (!abortIfSyntaxParser()) { | |||
| 5012 | return false; | |||
| 5013 | } | |||
| 5014 | ||||
| 5015 | if (!mustMatchToken(TokenKind::LeftCurly, JSMSG_CURLY_AFTER_ASSERT)) { | |||
| 5016 | return false; | |||
| 5017 | } | |||
| 5018 | ||||
| 5019 | // Handle the form |... assert {}| | |||
| 5020 | TokenKind token; | |||
| 5021 | if (!tokenStream.getToken(&token)) { | |||
| 5022 | return false; | |||
| 5023 | } | |||
| 5024 | if (token == TokenKind::RightCurly) { | |||
| 5025 | return true; | |||
| 5026 | } | |||
| 5027 | ||||
| 5028 | js::HashSet<TaggedParserAtomIndex, TaggedParserAtomIndexHasher, | |||
| 5029 | js::SystemAllocPolicy> | |||
| 5030 | usedAssertionKeys; | |||
| 5031 | ||||
| 5032 | for (;;) { | |||
| 5033 | TaggedParserAtomIndex keyName; | |||
| 5034 | if (TokenKindIsPossibleIdentifierName(token)) { | |||
| 5035 | keyName = anyChars.currentName(); | |||
| 5036 | } else if (token == TokenKind::String) { | |||
| 5037 | keyName = anyChars.currentToken().atom(); | |||
| 5038 | } else { | |||
| 5039 | error(JSMSG_ASSERT_KEY_EXPECTED); | |||
| 5040 | return false; | |||
| 5041 | } | |||
| 5042 | ||||
| 5043 | auto p = usedAssertionKeys.lookupForAdd(keyName); | |||
| 5044 | if (p) { | |||
| 5045 | UniqueChars str = this->parserAtoms().toPrintableString(keyName); | |||
| 5046 | if (!str) { | |||
| 5047 | ReportOutOfMemory(this->fc_); | |||
| 5048 | return false; | |||
| 5049 | } | |||
| 5050 | error(JSMSG_DUPLICATE_ASSERT_KEY, str.get()); | |||
| 5051 | return false; | |||
| 5052 | } | |||
| 5053 | if (!usedAssertionKeys.add(p, keyName)) { | |||
| 5054 | ReportOutOfMemory(this->fc_); | |||
| 5055 | return false; | |||
| 5056 | } | |||
| 5057 | ||||
| 5058 | NameNodeType keyNode; | |||
| 5059 | MOZ_TRY_VAR_OR_RETURN(keyNode, newName(keyName), false)do { auto parserTryVarTempResult_ = (newName(keyName)); if (( __builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (keyNode) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 5060 | ||||
| 5061 | if (!mustMatchToken(TokenKind::Colon, JSMSG_COLON_AFTER_ASSERT_KEY)) { | |||
| 5062 | return false; | |||
| 5063 | } | |||
| 5064 | if (!mustMatchToken(TokenKind::String, JSMSG_ASSERT_STRING_LITERAL)) { | |||
| 5065 | return false; | |||
| 5066 | } | |||
| 5067 | ||||
| 5068 | NameNodeType valueNode; | |||
| 5069 | MOZ_TRY_VAR_OR_RETURN(valueNode, stringLiteral(), false)do { auto parserTryVarTempResult_ = (stringLiteral()); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (valueNode) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 5070 | ||||
| 5071 | BinaryNodeType importAttributeNode; | |||
| 5072 | MOZ_TRY_VAR_OR_RETURN(importAttributeNode,do { auto parserTryVarTempResult_ = (handler_.newImportAttribute (keyNode, valueNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importAttributeNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 5073 | handler_.newImportAttribute(keyNode, valueNode),do { auto parserTryVarTempResult_ = (handler_.newImportAttribute (keyNode, valueNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importAttributeNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 5074 | false)do { auto parserTryVarTempResult_ = (handler_.newImportAttribute (keyNode, valueNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importAttributeNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 5075 | ||||
| 5076 | handler_.addList(attributesSet, importAttributeNode); | |||
| 5077 | ||||
| 5078 | if (!tokenStream.getToken(&token)) { | |||
| 5079 | return false; | |||
| 5080 | } | |||
| 5081 | if (token == TokenKind::Comma) { | |||
| 5082 | if (!tokenStream.getToken(&token)) { | |||
| 5083 | return false; | |||
| 5084 | } | |||
| 5085 | } | |||
| 5086 | if (token == TokenKind::RightCurly) { | |||
| 5087 | break; | |||
| 5088 | } | |||
| 5089 | } | |||
| 5090 | ||||
| 5091 | return true; | |||
| 5092 | } | |||
| 5093 | ||||
| 5094 | template <class ParseHandler, typename Unit> | |||
| 5095 | bool GeneralParser<ParseHandler, Unit>::namedImports( | |||
| 5096 | ListNodeType importSpecSet) { | |||
| 5097 | if (!abortIfSyntaxParser()) { | |||
| 5098 | return false; | |||
| 5099 | } | |||
| 5100 | ||||
| 5101 | while (true) { | |||
| 5102 | // Handle the forms |import {} from 'a'| and | |||
| 5103 | // |import { ..., } from 'a'| (where ... is non empty), by | |||
| 5104 | // escaping the loop early if the next token is }. | |||
| 5105 | TokenKind tt; | |||
| 5106 | if (!tokenStream.getToken(&tt)) { | |||
| 5107 | return false; | |||
| 5108 | } | |||
| 5109 | ||||
| 5110 | if (tt == TokenKind::RightCurly) { | |||
| 5111 | break; | |||
| 5112 | } | |||
| 5113 | ||||
| 5114 | TaggedParserAtomIndex importName; | |||
| 5115 | NameNodeType importNameNode = null(); | |||
| 5116 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 5117 | importName = anyChars.currentName(); | |||
| 5118 | MOZ_TRY_VAR_OR_RETURN(importNameNode, newName(importName), false)do { auto parserTryVarTempResult_ = (newName(importName)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (importNameNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 5119 | } else if (tt == TokenKind::String) { | |||
| 5120 | MOZ_TRY_VAR_OR_RETURN(importNameNode, moduleExportName(), false)do { auto parserTryVarTempResult_ = (moduleExportName()); if ( (__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (importNameNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 5121 | } else { | |||
| 5122 | error(JSMSG_NO_IMPORT_NAME); | |||
| 5123 | return false; | |||
| 5124 | } | |||
| 5125 | ||||
| 5126 | bool matched; | |||
| 5127 | if (!tokenStream.matchToken(&matched, TokenKind::As)) { | |||
| 5128 | return false; | |||
| 5129 | } | |||
| 5130 | ||||
| 5131 | if (matched) { | |||
| 5132 | TokenKind afterAs; | |||
| 5133 | if (!tokenStream.getToken(&afterAs)) { | |||
| 5134 | return false; | |||
| 5135 | } | |||
| 5136 | ||||
| 5137 | if (!TokenKindIsPossibleIdentifierName(afterAs)) { | |||
| 5138 | error(JSMSG_NO_BINDING_NAME); | |||
| 5139 | return false; | |||
| 5140 | } | |||
| 5141 | } else { | |||
| 5142 | // String export names can't refer to local bindings. | |||
| 5143 | if (tt == TokenKind::String) { | |||
| 5144 | error(JSMSG_AS_AFTER_STRING); | |||
| 5145 | return false; | |||
| 5146 | } | |||
| 5147 | ||||
| 5148 | // Keywords cannot be bound to themselves, so an import name | |||
| 5149 | // that is a keyword is a syntax error if it is not followed | |||
| 5150 | // by the keyword 'as'. | |||
| 5151 | // See the ImportSpecifier production in ES6 section 15.2.2. | |||
| 5152 | MOZ_ASSERT(importName)do { static_assert( mozilla::detail::AssertionConditionType< decltype(importName)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(importName))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("importName", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5152); AnnotateMozCrashReason("MOZ_ASSERT" "(" "importName" ")"); do { *((volatile int*)__null) = 5152; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5153 | if (IsKeyword(importName)) { | |||
| 5154 | error(JSMSG_AS_AFTER_RESERVED_WORD, ReservedWordToCharZ(importName)); | |||
| 5155 | return false; | |||
| 5156 | } | |||
| 5157 | } | |||
| 5158 | ||||
| 5159 | TaggedParserAtomIndex bindingAtom = importedBinding(); | |||
| 5160 | if (!bindingAtom) { | |||
| 5161 | return false; | |||
| 5162 | } | |||
| 5163 | ||||
| 5164 | NameNodeType bindingName; | |||
| 5165 | MOZ_TRY_VAR_OR_RETURN(bindingName, newName(bindingAtom), false)do { auto parserTryVarTempResult_ = (newName(bindingAtom)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (bindingName) = parserTryVarTempResult_. unwrap(); } while (0); | |||
| 5166 | if (!noteDeclaredName(bindingAtom, DeclarationKind::Import, pos())) { | |||
| 5167 | return false; | |||
| 5168 | } | |||
| 5169 | ||||
| 5170 | BinaryNodeType importSpec; | |||
| 5171 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newImportSpec(importNameNode , bindingName)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importSpec) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 5172 | importSpec, handler_.newImportSpec(importNameNode, bindingName), false)do { auto parserTryVarTempResult_ = (handler_.newImportSpec(importNameNode , bindingName)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importSpec) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 5173 | ||||
| 5174 | handler_.addList(importSpecSet, importSpec); | |||
| 5175 | ||||
| 5176 | TokenKind next; | |||
| 5177 | if (!tokenStream.getToken(&next)) { | |||
| 5178 | return false; | |||
| 5179 | } | |||
| 5180 | ||||
| 5181 | if (next == TokenKind::RightCurly) { | |||
| 5182 | break; | |||
| 5183 | } | |||
| 5184 | ||||
| 5185 | if (next != TokenKind::Comma) { | |||
| 5186 | error(JSMSG_RC_AFTER_IMPORT_SPEC_LIST); | |||
| 5187 | return false; | |||
| 5188 | } | |||
| 5189 | } | |||
| 5190 | ||||
| 5191 | return true; | |||
| 5192 | } | |||
| 5193 | ||||
| 5194 | template <class ParseHandler, typename Unit> | |||
| 5195 | bool GeneralParser<ParseHandler, Unit>::namespaceImport( | |||
| 5196 | ListNodeType importSpecSet) { | |||
| 5197 | if (!abortIfSyntaxParser()) { | |||
| 5198 | return false; | |||
| 5199 | } | |||
| 5200 | ||||
| 5201 | if (!mustMatchToken(TokenKind::As, JSMSG_AS_AFTER_IMPORT_STAR)) { | |||
| 5202 | return false; | |||
| 5203 | } | |||
| 5204 | uint32_t begin = pos().begin; | |||
| 5205 | ||||
| 5206 | if (!mustMatchToken(TokenKindIsPossibleIdentifierName, | |||
| 5207 | JSMSG_NO_BINDING_NAME)) { | |||
| 5208 | return false; | |||
| 5209 | } | |||
| 5210 | ||||
| 5211 | // Namespace imports are not indirect bindings but lexical | |||
| 5212 | // definitions that hold a module namespace object. They are treated | |||
| 5213 | // as const variables which are initialized during the | |||
| 5214 | // ModuleInstantiate step. | |||
| 5215 | TaggedParserAtomIndex bindingName = importedBinding(); | |||
| 5216 | if (!bindingName) { | |||
| 5217 | return false; | |||
| 5218 | } | |||
| 5219 | NameNodeType bindingNameNode; | |||
| 5220 | MOZ_TRY_VAR_OR_RETURN(bindingNameNode, newName(bindingName), false)do { auto parserTryVarTempResult_ = (newName(bindingName)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (bindingNameNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 5221 | if (!noteDeclaredName(bindingName, DeclarationKind::Const, pos())) { | |||
| 5222 | return false; | |||
| 5223 | } | |||
| 5224 | ||||
| 5225 | // The namespace import name is currently required to live on the | |||
| 5226 | // environment. | |||
| 5227 | pc_->varScope().lookupDeclaredName(bindingName)->value()->setClosedOver(); | |||
| 5228 | ||||
| 5229 | UnaryNodeType importSpec; | |||
| 5230 | MOZ_TRY_VAR_OR_RETURN(importSpec,do { auto parserTryVarTempResult_ = (handler_.newImportNamespaceSpec (begin, bindingNameNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importSpec) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 5231 | handler_.newImportNamespaceSpec(begin, bindingNameNode),do { auto parserTryVarTempResult_ = (handler_.newImportNamespaceSpec (begin, bindingNameNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importSpec) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 5232 | false)do { auto parserTryVarTempResult_ = (handler_.newImportNamespaceSpec (begin, bindingNameNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (importSpec) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 5233 | ||||
| 5234 | handler_.addList(importSpecSet, importSpec); | |||
| 5235 | ||||
| 5236 | return true; | |||
| 5237 | } | |||
| 5238 | ||||
| 5239 | template <class ParseHandler, typename Unit> | |||
| 5240 | typename ParseHandler::BinaryNodeResult | |||
| 5241 | GeneralParser<ParseHandler, Unit>::importDeclaration() { | |||
| 5242 | if (!abortIfSyntaxParser()) { | |||
| 5243 | return errorResult(); | |||
| 5244 | } | |||
| 5245 | ||||
| 5246 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Import))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Import))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Import)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Import)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5246); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Import)" ")"); do { *((volatile int*)__null) = 5246; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5247 | ||||
| 5248 | if (!pc_->atModuleLevel()) { | |||
| 5249 | error(JSMSG_IMPORT_DECL_AT_TOP_LEVEL); | |||
| 5250 | return errorResult(); | |||
| 5251 | } | |||
| 5252 | ||||
| 5253 | uint32_t begin = pos().begin; | |||
| 5254 | TokenKind tt; | |||
| 5255 | if (!tokenStream.getToken(&tt)) { | |||
| 5256 | return errorResult(); | |||
| 5257 | } | |||
| 5258 | ||||
| 5259 | ListNodeType importSpecSet; | |||
| 5260 | MOZ_TRY_VAR(importSpecSet,do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ImportSpecList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importSpecSet) = mozTryVarTempResult_.unwrap(); } while ( 0) | |||
| 5261 | handler_.newList(ParseNodeKind::ImportSpecList, pos()))do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ImportSpecList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importSpecSet) = mozTryVarTempResult_.unwrap(); } while ( 0); | |||
| 5262 | ||||
| 5263 | if (tt == TokenKind::String) { | |||
| 5264 | // Handle the form |import 'a'| by leaving the list empty. This is | |||
| 5265 | // equivalent to |import {} from 'a'|. | |||
| 5266 | handler_.setEndPosition(importSpecSet, pos().begin); | |||
| 5267 | } else { | |||
| 5268 | if (tt == TokenKind::LeftCurly) { | |||
| 5269 | if (!namedImports(importSpecSet)) { | |||
| 5270 | return errorResult(); | |||
| 5271 | } | |||
| 5272 | } else if (tt == TokenKind::Mul) { | |||
| 5273 | if (!namespaceImport(importSpecSet)) { | |||
| 5274 | return errorResult(); | |||
| 5275 | } | |||
| 5276 | } else if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 5277 | // Handle the form |import a from 'b'|, by adding a single import | |||
| 5278 | // specifier to the list, with 'default' as the import name and | |||
| 5279 | // 'a' as the binding name. This is equivalent to | |||
| 5280 | // |import { default as a } from 'b'|. | |||
| 5281 | NameNodeType importName; | |||
| 5282 | MOZ_TRY_VAR(importName,do { auto mozTryVarTempResult_ = (newName(TaggedParserAtomIndex ::WellKnown::default_())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importName) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 5283 | newName(TaggedParserAtomIndex::WellKnown::default_()))do { auto mozTryVarTempResult_ = (newName(TaggedParserAtomIndex ::WellKnown::default_())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importName) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5284 | ||||
| 5285 | TaggedParserAtomIndex bindingAtom = importedBinding(); | |||
| 5286 | if (!bindingAtom) { | |||
| 5287 | return errorResult(); | |||
| 5288 | } | |||
| 5289 | ||||
| 5290 | NameNodeType bindingName; | |||
| 5291 | MOZ_TRY_VAR(bindingName, newName(bindingAtom))do { auto mozTryVarTempResult_ = (newName(bindingAtom)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (bindingName) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 5292 | ||||
| 5293 | if (!noteDeclaredName(bindingAtom, DeclarationKind::Import, pos())) { | |||
| 5294 | return errorResult(); | |||
| 5295 | } | |||
| 5296 | ||||
| 5297 | BinaryNodeType importSpec; | |||
| 5298 | MOZ_TRY_VAR(importSpec, handler_.newImportSpec(importName, bindingName))do { auto mozTryVarTempResult_ = (handler_.newImportSpec(importName , bindingName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importSpec) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5299 | ||||
| 5300 | handler_.addList(importSpecSet, importSpec); | |||
| 5301 | ||||
| 5302 | if (!tokenStream.peekToken(&tt)) { | |||
| 5303 | return errorResult(); | |||
| 5304 | } | |||
| 5305 | ||||
| 5306 | if (tt == TokenKind::Comma) { | |||
| 5307 | tokenStream.consumeKnownToken(tt); | |||
| 5308 | if (!tokenStream.getToken(&tt)) { | |||
| 5309 | return errorResult(); | |||
| 5310 | } | |||
| 5311 | ||||
| 5312 | if (tt == TokenKind::LeftCurly) { | |||
| 5313 | if (!namedImports(importSpecSet)) { | |||
| 5314 | return errorResult(); | |||
| 5315 | } | |||
| 5316 | } else if (tt == TokenKind::Mul) { | |||
| 5317 | if (!namespaceImport(importSpecSet)) { | |||
| 5318 | return errorResult(); | |||
| 5319 | } | |||
| 5320 | } else { | |||
| 5321 | error(JSMSG_NAMED_IMPORTS_OR_NAMESPACE_IMPORT); | |||
| 5322 | return errorResult(); | |||
| 5323 | } | |||
| 5324 | } | |||
| 5325 | } else { | |||
| 5326 | error(JSMSG_DECLARATION_AFTER_IMPORT); | |||
| 5327 | return errorResult(); | |||
| 5328 | } | |||
| 5329 | ||||
| 5330 | if (!mustMatchToken(TokenKind::From, JSMSG_FROM_AFTER_IMPORT_CLAUSE)) { | |||
| 5331 | return errorResult(); | |||
| 5332 | } | |||
| 5333 | ||||
| 5334 | if (!mustMatchToken(TokenKind::String, JSMSG_MODULE_SPEC_AFTER_FROM)) { | |||
| 5335 | return errorResult(); | |||
| 5336 | } | |||
| 5337 | } | |||
| 5338 | ||||
| 5339 | NameNodeType moduleSpec; | |||
| 5340 | MOZ_TRY_VAR(moduleSpec, stringLiteral())do { auto mozTryVarTempResult_ = (stringLiteral()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (moduleSpec) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 5341 | ||||
| 5342 | // The `assert` keyword has a [no LineTerminator here] production before it in | |||
| 5343 | // the grammar -- `with` does not. We need to handle this distinction. | |||
| 5344 | if (!tokenStream.peekTokenSameLine(&tt, TokenStream::SlashIsRegExp)) { | |||
| 5345 | return errorResult(); | |||
| 5346 | } | |||
| 5347 | ||||
| 5348 | // `with` may have an EOL prior, so peek the next token and replace | |||
| 5349 | // EOL if the next token is `with`. | |||
| 5350 | if (tt == TokenKind::Eol) { | |||
| 5351 | // Doing a regular peek won't produce Eol, but the actual next token. | |||
| 5352 | TokenKind peekedToken; | |||
| 5353 | if (!tokenStream.peekToken(&peekedToken, TokenStream::SlashIsRegExp)) { | |||
| 5354 | return errorResult(); | |||
| 5355 | } | |||
| 5356 | ||||
| 5357 | if (peekedToken == TokenKind::With) { | |||
| 5358 | tt = TokenKind::With; | |||
| 5359 | } | |||
| 5360 | } | |||
| 5361 | ||||
| 5362 | ListNodeType importAttributeList; | |||
| 5363 | MOZ_TRY_VAR(importAttributeList,do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ImportAttributeList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importAttributeList) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 5364 | handler_.newList(ParseNodeKind::ImportAttributeList, pos()))do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ImportAttributeList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importAttributeList) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5365 | ||||
| 5366 | if (tt == TokenKind::With || | |||
| 5367 | (tt == TokenKind::Assert && options().importAttributesAssertSyntax())) { | |||
| 5368 | tokenStream.consumeKnownToken(tt, TokenStream::SlashIsRegExp); | |||
| 5369 | ||||
| 5370 | if (!withClause(importAttributeList)) { | |||
| 5371 | return errorResult(); | |||
| 5372 | } | |||
| 5373 | } | |||
| 5374 | ||||
| 5375 | if (!matchOrInsertSemicolon(TokenStream::SlashIsRegExp)) { | |||
| 5376 | return errorResult(); | |||
| 5377 | } | |||
| 5378 | ||||
| 5379 | BinaryNodeType moduleRequest; | |||
| 5380 | MOZ_TRY_VAR(moduleRequest,do { auto mozTryVarTempResult_ = (handler_.newModuleRequest(moduleSpec , importAttributeList, TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (moduleRequest) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 5381 | handler_.newModuleRequest(moduleSpec, importAttributeList,do { auto mozTryVarTempResult_ = (handler_.newModuleRequest(moduleSpec , importAttributeList, TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (moduleRequest) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 5382 | TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newModuleRequest(moduleSpec , importAttributeList, TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (moduleRequest) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 5383 | ||||
| 5384 | BinaryNodeType node; | |||
| 5385 | MOZ_TRY_VAR(node, handler_.newImportDeclaration(importSpecSet, moduleRequest,do { auto mozTryVarTempResult_ = (handler_.newImportDeclaration (importSpecSet, moduleRequest, TokenPos(begin, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (node) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 5386 | TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newImportDeclaration (importSpecSet, moduleRequest, TokenPos(begin, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (node) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 5387 | if (!processImport(node)) { | |||
| 5388 | return errorResult(); | |||
| 5389 | } | |||
| 5390 | ||||
| 5391 | return node; | |||
| 5392 | } | |||
| 5393 | ||||
| 5394 | template <class ParseHandler, typename Unit> | |||
| 5395 | inline typename ParseHandler::NodeResult | |||
| 5396 | GeneralParser<ParseHandler, Unit>::importDeclarationOrImportExpr( | |||
| 5397 | YieldHandling yieldHandling) { | |||
| 5398 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Import))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Import))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Import)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Import)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5398); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Import)" ")"); do { *((volatile int*)__null) = 5398; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5399 | ||||
| 5400 | TokenKind tt; | |||
| 5401 | if (!tokenStream.peekToken(&tt)) { | |||
| 5402 | return errorResult(); | |||
| 5403 | } | |||
| 5404 | ||||
| 5405 | if (tt == TokenKind::Dot || tt == TokenKind::LeftParen) { | |||
| 5406 | return expressionStatement(yieldHandling); | |||
| 5407 | } | |||
| 5408 | ||||
| 5409 | return importDeclaration(); | |||
| 5410 | } | |||
| 5411 | ||||
| 5412 | template <typename Unit> | |||
| 5413 | bool Parser<FullParseHandler, Unit>::checkExportedName( | |||
| 5414 | TaggedParserAtomIndex exportName) { | |||
| 5415 | switch (pc_->sc()->asModuleContext()->builder.noteExportedName(exportName)) { | |||
| 5416 | case ModuleBuilder::NoteExportedNameResult::Success: | |||
| 5417 | return true; | |||
| 5418 | case ModuleBuilder::NoteExportedNameResult::OutOfMemory: | |||
| 5419 | return false; | |||
| 5420 | case ModuleBuilder::NoteExportedNameResult::AlreadyDeclared: | |||
| 5421 | break; | |||
| 5422 | } | |||
| 5423 | ||||
| 5424 | UniqueChars str = this->parserAtoms().toPrintableString(exportName); | |||
| 5425 | if (!str) { | |||
| 5426 | ReportOutOfMemory(this->fc_); | |||
| 5427 | return false; | |||
| 5428 | } | |||
| 5429 | ||||
| 5430 | error(JSMSG_DUPLICATE_EXPORT_NAME, str.get()); | |||
| 5431 | return false; | |||
| 5432 | } | |||
| 5433 | ||||
| 5434 | template <typename Unit> | |||
| 5435 | inline bool Parser<SyntaxParseHandler, Unit>::checkExportedName( | |||
| 5436 | TaggedParserAtomIndex exportName) { | |||
| 5437 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5437); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5437; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5438 | return false; | |||
| 5439 | } | |||
| 5440 | ||||
| 5441 | template <class ParseHandler, typename Unit> | |||
| 5442 | inline bool GeneralParser<ParseHandler, Unit>::checkExportedName( | |||
| 5443 | TaggedParserAtomIndex exportName) { | |||
| 5444 | return asFinalParser()->checkExportedName(exportName); | |||
| 5445 | } | |||
| 5446 | ||||
| 5447 | template <typename Unit> | |||
| 5448 | bool Parser<FullParseHandler, Unit>::checkExportedNamesForArrayBinding( | |||
| 5449 | ListNode* array) { | |||
| 5450 | MOZ_ASSERT(array->isKind(ParseNodeKind::ArrayExpr))do { static_assert( mozilla::detail::AssertionConditionType< decltype(array->isKind(ParseNodeKind::ArrayExpr))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(array->isKind(ParseNodeKind::ArrayExpr)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("array->isKind(ParseNodeKind::ArrayExpr)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5450); AnnotateMozCrashReason("MOZ_ASSERT" "(" "array->isKind(ParseNodeKind::ArrayExpr)" ")"); do { *((volatile int*)__null) = 5450; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5451 | ||||
| 5452 | for (ParseNode* node : array->contents()) { | |||
| 5453 | if (node->isKind(ParseNodeKind::Elision)) { | |||
| 5454 | continue; | |||
| 5455 | } | |||
| 5456 | ||||
| 5457 | ParseNode* binding; | |||
| 5458 | if (node->isKind(ParseNodeKind::Spread)) { | |||
| 5459 | binding = node->as<UnaryNode>().kid(); | |||
| 5460 | } else if (node->isKind(ParseNodeKind::AssignExpr)) { | |||
| 5461 | binding = node->as<AssignmentNode>().left(); | |||
| 5462 | } else { | |||
| 5463 | binding = node; | |||
| 5464 | } | |||
| 5465 | ||||
| 5466 | if (!checkExportedNamesForDeclaration(binding)) { | |||
| 5467 | return false; | |||
| 5468 | } | |||
| 5469 | } | |||
| 5470 | ||||
| 5471 | return true; | |||
| 5472 | } | |||
| 5473 | ||||
| 5474 | template <typename Unit> | |||
| 5475 | inline bool Parser<SyntaxParseHandler, Unit>::checkExportedNamesForArrayBinding( | |||
| 5476 | ListNodeType array) { | |||
| 5477 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5477); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5477; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5478 | return false; | |||
| 5479 | } | |||
| 5480 | ||||
| 5481 | template <class ParseHandler, typename Unit> | |||
| 5482 | inline bool | |||
| 5483 | GeneralParser<ParseHandler, Unit>::checkExportedNamesForArrayBinding( | |||
| 5484 | ListNodeType array) { | |||
| 5485 | return asFinalParser()->checkExportedNamesForArrayBinding(array); | |||
| 5486 | } | |||
| 5487 | ||||
| 5488 | template <typename Unit> | |||
| 5489 | bool Parser<FullParseHandler, Unit>::checkExportedNamesForObjectBinding( | |||
| 5490 | ListNode* obj) { | |||
| 5491 | MOZ_ASSERT(obj->isKind(ParseNodeKind::ObjectExpr))do { static_assert( mozilla::detail::AssertionConditionType< decltype(obj->isKind(ParseNodeKind::ObjectExpr))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(obj->isKind(ParseNodeKind::ObjectExpr)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("obj->isKind(ParseNodeKind::ObjectExpr)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5491); AnnotateMozCrashReason("MOZ_ASSERT" "(" "obj->isKind(ParseNodeKind::ObjectExpr)" ")"); do { *((volatile int*)__null) = 5491; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5492 | ||||
| 5493 | for (ParseNode* node : obj->contents()) { | |||
| 5494 | MOZ_ASSERT(node->isKind(ParseNodeKind::MutateProto) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5497); AnnotateMozCrashReason("MOZ_ASSERT" "(" "node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" ")"); do { *((volatile int*)__null) = 5497; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 5495 | node->isKind(ParseNodeKind::PropertyDefinition) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5497); AnnotateMozCrashReason("MOZ_ASSERT" "(" "node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" ")"); do { *((volatile int*)__null) = 5497; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 5496 | node->isKind(ParseNodeKind::Shorthand) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5497); AnnotateMozCrashReason("MOZ_ASSERT" "(" "node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" ")"); do { *((volatile int*)__null) = 5497; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 5497 | node->isKind(ParseNodeKind::Spread))do { static_assert( mozilla::detail::AssertionConditionType< decltype(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(node->isKind(ParseNodeKind::MutateProto) || node-> isKind(ParseNodeKind::PropertyDefinition) || node->isKind( ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5497); AnnotateMozCrashReason("MOZ_ASSERT" "(" "node->isKind(ParseNodeKind::MutateProto) || node->isKind(ParseNodeKind::PropertyDefinition) || node->isKind(ParseNodeKind::Shorthand) || node->isKind(ParseNodeKind::Spread)" ")"); do { *((volatile int*)__null) = 5497; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5498 | ||||
| 5499 | ParseNode* target; | |||
| 5500 | if (node->isKind(ParseNodeKind::Spread)) { | |||
| 5501 | target = node->as<UnaryNode>().kid(); | |||
| 5502 | } else { | |||
| 5503 | if (node->isKind(ParseNodeKind::MutateProto)) { | |||
| 5504 | target = node->as<UnaryNode>().kid(); | |||
| 5505 | } else { | |||
| 5506 | target = node->as<BinaryNode>().right(); | |||
| 5507 | } | |||
| 5508 | ||||
| 5509 | if (target->isKind(ParseNodeKind::AssignExpr)) { | |||
| 5510 | target = target->as<AssignmentNode>().left(); | |||
| 5511 | } | |||
| 5512 | } | |||
| 5513 | ||||
| 5514 | if (!checkExportedNamesForDeclaration(target)) { | |||
| 5515 | return false; | |||
| 5516 | } | |||
| 5517 | } | |||
| 5518 | ||||
| 5519 | return true; | |||
| 5520 | } | |||
| 5521 | ||||
| 5522 | template <typename Unit> | |||
| 5523 | inline bool Parser<SyntaxParseHandler, | |||
| 5524 | Unit>::checkExportedNamesForObjectBinding(ListNodeType obj) { | |||
| 5525 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5525); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5525; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5526 | return false; | |||
| 5527 | } | |||
| 5528 | ||||
| 5529 | template <class ParseHandler, typename Unit> | |||
| 5530 | inline bool | |||
| 5531 | GeneralParser<ParseHandler, Unit>::checkExportedNamesForObjectBinding( | |||
| 5532 | ListNodeType obj) { | |||
| 5533 | return asFinalParser()->checkExportedNamesForObjectBinding(obj); | |||
| 5534 | } | |||
| 5535 | ||||
| 5536 | template <typename Unit> | |||
| 5537 | bool Parser<FullParseHandler, Unit>::checkExportedNamesForDeclaration( | |||
| 5538 | ParseNode* node) { | |||
| 5539 | if (node->isKind(ParseNodeKind::Name)) { | |||
| 5540 | if (!checkExportedName(node->as<NameNode>().atom())) { | |||
| 5541 | return false; | |||
| 5542 | } | |||
| 5543 | } else if (node->isKind(ParseNodeKind::ArrayExpr)) { | |||
| 5544 | if (!checkExportedNamesForArrayBinding(&node->as<ListNode>())) { | |||
| 5545 | return false; | |||
| 5546 | } | |||
| 5547 | } else { | |||
| 5548 | MOZ_ASSERT(node->isKind(ParseNodeKind::ObjectExpr))do { static_assert( mozilla::detail::AssertionConditionType< decltype(node->isKind(ParseNodeKind::ObjectExpr))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(node->isKind(ParseNodeKind::ObjectExpr)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("node->isKind(ParseNodeKind::ObjectExpr)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5548); AnnotateMozCrashReason("MOZ_ASSERT" "(" "node->isKind(ParseNodeKind::ObjectExpr)" ")"); do { *((volatile int*)__null) = 5548; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5549 | if (!checkExportedNamesForObjectBinding(&node->as<ListNode>())) { | |||
| 5550 | return false; | |||
| 5551 | } | |||
| 5552 | } | |||
| 5553 | ||||
| 5554 | return true; | |||
| 5555 | } | |||
| 5556 | ||||
| 5557 | template <typename Unit> | |||
| 5558 | inline bool Parser<SyntaxParseHandler, Unit>::checkExportedNamesForDeclaration( | |||
| 5559 | Node node) { | |||
| 5560 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5560); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5560; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5561 | return false; | |||
| 5562 | } | |||
| 5563 | ||||
| 5564 | template <class ParseHandler, typename Unit> | |||
| 5565 | inline bool GeneralParser<ParseHandler, Unit>::checkExportedNamesForDeclaration( | |||
| 5566 | Node node) { | |||
| 5567 | return asFinalParser()->checkExportedNamesForDeclaration(node); | |||
| 5568 | } | |||
| 5569 | ||||
| 5570 | template <typename Unit> | |||
| 5571 | bool Parser<FullParseHandler, Unit>::checkExportedNamesForDeclarationList( | |||
| 5572 | DeclarationListNodeType node) { | |||
| 5573 | for (ParseNode* binding : node->contents()) { | |||
| 5574 | if (binding->isKind(ParseNodeKind::AssignExpr)) { | |||
| 5575 | binding = binding->as<AssignmentNode>().left(); | |||
| 5576 | } else { | |||
| 5577 | MOZ_ASSERT(binding->isKind(ParseNodeKind::Name))do { static_assert( mozilla::detail::AssertionConditionType< decltype(binding->isKind(ParseNodeKind::Name))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(binding->isKind(ParseNodeKind::Name)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("binding->isKind(ParseNodeKind::Name)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5577); AnnotateMozCrashReason("MOZ_ASSERT" "(" "binding->isKind(ParseNodeKind::Name)" ")"); do { *((volatile int*)__null) = 5577; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5578 | } | |||
| 5579 | ||||
| 5580 | if (!checkExportedNamesForDeclaration(binding)) { | |||
| 5581 | return false; | |||
| 5582 | } | |||
| 5583 | } | |||
| 5584 | ||||
| 5585 | return true; | |||
| 5586 | } | |||
| 5587 | ||||
| 5588 | template <typename Unit> | |||
| 5589 | inline bool | |||
| 5590 | Parser<SyntaxParseHandler, Unit>::checkExportedNamesForDeclarationList( | |||
| 5591 | DeclarationListNodeType node) { | |||
| 5592 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5592); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5592; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5593 | return false; | |||
| 5594 | } | |||
| 5595 | ||||
| 5596 | template <class ParseHandler, typename Unit> | |||
| 5597 | inline bool | |||
| 5598 | GeneralParser<ParseHandler, Unit>::checkExportedNamesForDeclarationList( | |||
| 5599 | DeclarationListNodeType node) { | |||
| 5600 | return asFinalParser()->checkExportedNamesForDeclarationList(node); | |||
| 5601 | } | |||
| 5602 | ||||
| 5603 | template <typename Unit> | |||
| 5604 | inline bool Parser<FullParseHandler, Unit>::checkExportedNameForClause( | |||
| 5605 | NameNode* nameNode) { | |||
| 5606 | return checkExportedName(nameNode->atom()); | |||
| 5607 | } | |||
| 5608 | ||||
| 5609 | template <typename Unit> | |||
| 5610 | inline bool Parser<SyntaxParseHandler, Unit>::checkExportedNameForClause( | |||
| 5611 | NameNodeType nameNode) { | |||
| 5612 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5612); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5612; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5613 | return false; | |||
| 5614 | } | |||
| 5615 | ||||
| 5616 | template <class ParseHandler, typename Unit> | |||
| 5617 | inline bool GeneralParser<ParseHandler, Unit>::checkExportedNameForClause( | |||
| 5618 | NameNodeType nameNode) { | |||
| 5619 | return asFinalParser()->checkExportedNameForClause(nameNode); | |||
| 5620 | } | |||
| 5621 | ||||
| 5622 | template <typename Unit> | |||
| 5623 | bool Parser<FullParseHandler, Unit>::checkExportedNameForFunction( | |||
| 5624 | FunctionNode* funNode) { | |||
| 5625 | return checkExportedName(funNode->funbox()->explicitName()); | |||
| 5626 | } | |||
| 5627 | ||||
| 5628 | template <typename Unit> | |||
| 5629 | inline bool Parser<SyntaxParseHandler, Unit>::checkExportedNameForFunction( | |||
| 5630 | FunctionNodeType funNode) { | |||
| 5631 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5631); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5631; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5632 | return false; | |||
| 5633 | } | |||
| 5634 | ||||
| 5635 | template <class ParseHandler, typename Unit> | |||
| 5636 | inline bool GeneralParser<ParseHandler, Unit>::checkExportedNameForFunction( | |||
| 5637 | FunctionNodeType funNode) { | |||
| 5638 | return asFinalParser()->checkExportedNameForFunction(funNode); | |||
| 5639 | } | |||
| 5640 | ||||
| 5641 | template <typename Unit> | |||
| 5642 | bool Parser<FullParseHandler, Unit>::checkExportedNameForClass( | |||
| 5643 | ClassNode* classNode) { | |||
| 5644 | MOZ_ASSERT(classNode->names())do { static_assert( mozilla::detail::AssertionConditionType< decltype(classNode->names())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(classNode->names()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("classNode->names()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5644); AnnotateMozCrashReason("MOZ_ASSERT" "(" "classNode->names()" ")"); do { *((volatile int*)__null) = 5644; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5645 | return checkExportedName(classNode->names()->innerBinding()->atom()); | |||
| 5646 | } | |||
| 5647 | ||||
| 5648 | template <typename Unit> | |||
| 5649 | inline bool Parser<SyntaxParseHandler, Unit>::checkExportedNameForClass( | |||
| 5650 | ClassNodeType classNode) { | |||
| 5651 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5651); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5651; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5652 | return false; | |||
| 5653 | } | |||
| 5654 | ||||
| 5655 | template <class ParseHandler, typename Unit> | |||
| 5656 | inline bool GeneralParser<ParseHandler, Unit>::checkExportedNameForClass( | |||
| 5657 | ClassNodeType classNode) { | |||
| 5658 | return asFinalParser()->checkExportedNameForClass(classNode); | |||
| 5659 | } | |||
| 5660 | ||||
| 5661 | template <> | |||
| 5662 | inline bool PerHandlerParser<FullParseHandler>::processExport(ParseNode* node) { | |||
| 5663 | return pc_->sc()->asModuleContext()->builder.processExport(node); | |||
| 5664 | } | |||
| 5665 | ||||
| 5666 | template <> | |||
| 5667 | inline bool PerHandlerParser<SyntaxParseHandler>::processExport(Node node) { | |||
| 5668 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5668); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5668; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5669 | return false; | |||
| 5670 | } | |||
| 5671 | ||||
| 5672 | template <> | |||
| 5673 | inline bool PerHandlerParser<FullParseHandler>::processExportFrom( | |||
| 5674 | BinaryNodeType node) { | |||
| 5675 | return pc_->sc()->asModuleContext()->builder.processExportFrom(node); | |||
| 5676 | } | |||
| 5677 | ||||
| 5678 | template <> | |||
| 5679 | inline bool PerHandlerParser<SyntaxParseHandler>::processExportFrom( | |||
| 5680 | BinaryNodeType node) { | |||
| 5681 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5681); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5681; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5682 | return false; | |||
| 5683 | } | |||
| 5684 | ||||
| 5685 | template <> | |||
| 5686 | inline bool PerHandlerParser<FullParseHandler>::processImport( | |||
| 5687 | BinaryNodeType node) { | |||
| 5688 | return pc_->sc()->asModuleContext()->builder.processImport(node); | |||
| 5689 | } | |||
| 5690 | ||||
| 5691 | template <> | |||
| 5692 | inline bool PerHandlerParser<SyntaxParseHandler>::processImport( | |||
| 5693 | BinaryNodeType node) { | |||
| 5694 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5694); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5694; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5695 | return false; | |||
| 5696 | } | |||
| 5697 | ||||
| 5698 | template <class ParseHandler, typename Unit> | |||
| 5699 | typename ParseHandler::BinaryNodeResult | |||
| 5700 | GeneralParser<ParseHandler, Unit>::exportFrom(uint32_t begin, Node specList) { | |||
| 5701 | if (!abortIfSyntaxParser()) { | |||
| 5702 | return errorResult(); | |||
| 5703 | } | |||
| 5704 | ||||
| 5705 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::From))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::From))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::From)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::From)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5705); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::From)" ")"); do { *((volatile int*)__null) = 5705; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5706 | ||||
| 5707 | if (!mustMatchToken(TokenKind::String, JSMSG_MODULE_SPEC_AFTER_FROM)) { | |||
| 5708 | return errorResult(); | |||
| 5709 | } | |||
| 5710 | ||||
| 5711 | NameNodeType moduleSpec; | |||
| 5712 | MOZ_TRY_VAR(moduleSpec, stringLiteral())do { auto mozTryVarTempResult_ = (stringLiteral()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (moduleSpec) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 5713 | ||||
| 5714 | TokenKind tt; | |||
| 5715 | ||||
| 5716 | // The `assert` keyword has a [no LineTerminator here] production before it in | |||
| 5717 | // the grammar -- `with` does not. We need to handle this distinction. | |||
| 5718 | if (!tokenStream.peekTokenSameLine(&tt, TokenStream::SlashIsRegExp)) { | |||
| 5719 | return errorResult(); | |||
| 5720 | } | |||
| 5721 | ||||
| 5722 | // `with` may have an EOL prior, so peek the next token and replace | |||
| 5723 | // EOL if the next token is `with`. | |||
| 5724 | if (tt == TokenKind::Eol) { | |||
| 5725 | // Doing a regular peek won't produce Eol, but the actual next token. | |||
| 5726 | TokenKind peekedToken; | |||
| 5727 | if (!tokenStream.peekToken(&peekedToken, TokenStream::SlashIsRegExp)) { | |||
| 5728 | return errorResult(); | |||
| 5729 | } | |||
| 5730 | ||||
| 5731 | if (peekedToken == TokenKind::With) { | |||
| 5732 | tt = TokenKind::With; | |||
| 5733 | } | |||
| 5734 | } | |||
| 5735 | ||||
| 5736 | uint32_t moduleSpecPos = pos().begin; | |||
| 5737 | ||||
| 5738 | ListNodeType importAttributeList; | |||
| 5739 | MOZ_TRY_VAR(importAttributeList,do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ImportAttributeList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importAttributeList) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 5740 | handler_.newList(ParseNodeKind::ImportAttributeList, pos()))do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ImportAttributeList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (importAttributeList) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5741 | if (tt == TokenKind::With || | |||
| 5742 | (tt == TokenKind::Assert && options().importAttributesAssertSyntax())) { | |||
| 5743 | tokenStream.consumeKnownToken(tt, TokenStream::SlashIsRegExp); | |||
| 5744 | ||||
| 5745 | if (!withClause(importAttributeList)) { | |||
| 5746 | return errorResult(); | |||
| 5747 | } | |||
| 5748 | } | |||
| 5749 | ||||
| 5750 | if (!matchOrInsertSemicolon(TokenStream::SlashIsRegExp)) { | |||
| 5751 | return errorResult(); | |||
| 5752 | } | |||
| 5753 | ||||
| 5754 | BinaryNodeType moduleRequest; | |||
| 5755 | MOZ_TRY_VAR(moduleRequest,do { auto mozTryVarTempResult_ = (handler_.newModuleRequest(moduleSpec , importAttributeList, TokenPos(moduleSpecPos, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (moduleRequest) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 5756 | handler_.newModuleRequest(moduleSpec, importAttributeList,do { auto mozTryVarTempResult_ = (handler_.newModuleRequest(moduleSpec , importAttributeList, TokenPos(moduleSpecPos, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (moduleRequest) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 5757 | TokenPos(moduleSpecPos, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newModuleRequest(moduleSpec , importAttributeList, TokenPos(moduleSpecPos, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (moduleRequest) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 5758 | ||||
| 5759 | BinaryNodeType node; | |||
| 5760 | MOZ_TRY_VAR(do { auto mozTryVarTempResult_ = (handler_.newExportFromDeclaration (begin, specList, moduleRequest)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 5761 | node, handler_.newExportFromDeclaration(begin, specList, moduleRequest))do { auto mozTryVarTempResult_ = (handler_.newExportFromDeclaration (begin, specList, moduleRequest)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5762 | ||||
| 5763 | if (!processExportFrom(node)) { | |||
| 5764 | return errorResult(); | |||
| 5765 | } | |||
| 5766 | ||||
| 5767 | return node; | |||
| 5768 | } | |||
| 5769 | ||||
| 5770 | template <class ParseHandler, typename Unit> | |||
| 5771 | typename ParseHandler::BinaryNodeResult | |||
| 5772 | GeneralParser<ParseHandler, Unit>::exportBatch(uint32_t begin) { | |||
| 5773 | if (!abortIfSyntaxParser()) { | |||
| 5774 | return errorResult(); | |||
| 5775 | } | |||
| 5776 | ||||
| 5777 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Mul))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Mul))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::Mul)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Mul)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5777); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Mul)" ")"); do { *((volatile int*)__null) = 5777; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5778 | uint32_t beginExportSpec = pos().begin; | |||
| 5779 | ||||
| 5780 | ListNodeType kid; | |||
| 5781 | MOZ_TRY_VAR(kid, handler_.newList(ParseNodeKind::ExportSpecList, pos()))do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ExportSpecList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5782 | ||||
| 5783 | bool foundAs; | |||
| 5784 | if (!tokenStream.matchToken(&foundAs, TokenKind::As)) { | |||
| 5785 | return errorResult(); | |||
| 5786 | } | |||
| 5787 | ||||
| 5788 | if (foundAs) { | |||
| 5789 | TokenKind tt; | |||
| 5790 | if (!tokenStream.getToken(&tt)) { | |||
| 5791 | return errorResult(); | |||
| 5792 | } | |||
| 5793 | ||||
| 5794 | NameNodeType exportName = null(); | |||
| 5795 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 5796 | MOZ_TRY_VAR(exportName, newName(anyChars.currentName()))do { auto mozTryVarTempResult_ = (newName(anyChars.currentName ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exportName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5797 | } else if (tt == TokenKind::String) { | |||
| 5798 | MOZ_TRY_VAR(exportName, moduleExportName())do { auto mozTryVarTempResult_ = (moduleExportName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (exportName) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 5799 | } else { | |||
| 5800 | error(JSMSG_NO_EXPORT_NAME); | |||
| 5801 | return errorResult(); | |||
| 5802 | } | |||
| 5803 | ||||
| 5804 | if (!checkExportedNameForClause(exportName)) { | |||
| 5805 | return errorResult(); | |||
| 5806 | } | |||
| 5807 | ||||
| 5808 | UnaryNodeType exportSpec; | |||
| 5809 | MOZ_TRY_VAR(exportSpec,do { auto mozTryVarTempResult_ = (handler_.newExportNamespaceSpec (beginExportSpec, exportName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exportSpec) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 5810 | handler_.newExportNamespaceSpec(beginExportSpec, exportName))do { auto mozTryVarTempResult_ = (handler_.newExportNamespaceSpec (beginExportSpec, exportName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exportSpec) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5811 | ||||
| 5812 | handler_.addList(kid, exportSpec); | |||
| 5813 | } else { | |||
| 5814 | // Handle the form |export *| by adding a special export batch | |||
| 5815 | // specifier to the list. | |||
| 5816 | NullaryNodeType exportSpec; | |||
| 5817 | MOZ_TRY_VAR(exportSpec, handler_.newExportBatchSpec(pos()))do { auto mozTryVarTempResult_ = (handler_.newExportBatchSpec (pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exportSpec ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5818 | ||||
| 5819 | handler_.addList(kid, exportSpec); | |||
| 5820 | } | |||
| 5821 | ||||
| 5822 | if (!mustMatchToken(TokenKind::From, JSMSG_FROM_AFTER_EXPORT_STAR)) { | |||
| 5823 | return errorResult(); | |||
| 5824 | } | |||
| 5825 | ||||
| 5826 | return exportFrom(begin, kid); | |||
| 5827 | } | |||
| 5828 | ||||
| 5829 | template <typename Unit> | |||
| 5830 | bool Parser<FullParseHandler, Unit>::checkLocalExportNames(ListNode* node) { | |||
| 5831 | // ES 2017 draft 15.2.3.1. | |||
| 5832 | for (ParseNode* next : node->contents()) { | |||
| 5833 | ParseNode* name = next->as<BinaryNode>().left(); | |||
| 5834 | ||||
| 5835 | if (name->isKind(ParseNodeKind::StringExpr)) { | |||
| 5836 | errorAt(name->pn_pos.begin, JSMSG_BAD_LOCAL_STRING_EXPORT); | |||
| 5837 | return false; | |||
| 5838 | } | |||
| 5839 | ||||
| 5840 | MOZ_ASSERT(name->isKind(ParseNodeKind::Name))do { static_assert( mozilla::detail::AssertionConditionType< decltype(name->isKind(ParseNodeKind::Name))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(name->isKind(ParseNodeKind ::Name)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("name->isKind(ParseNodeKind::Name)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5840); AnnotateMozCrashReason("MOZ_ASSERT" "(" "name->isKind(ParseNodeKind::Name)" ")"); do { *((volatile int*)__null) = 5840; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5841 | ||||
| 5842 | TaggedParserAtomIndex ident = name->as<NameNode>().atom(); | |||
| 5843 | if (!checkLocalExportName(ident, name->pn_pos.begin)) { | |||
| 5844 | return false; | |||
| 5845 | } | |||
| 5846 | } | |||
| 5847 | ||||
| 5848 | return true; | |||
| 5849 | } | |||
| 5850 | ||||
| 5851 | template <typename Unit> | |||
| 5852 | bool Parser<SyntaxParseHandler, Unit>::checkLocalExportNames( | |||
| 5853 | ListNodeType node) { | |||
| 5854 | MOZ_ALWAYS_FALSE(abortIfSyntaxParser())do { if ((__builtin_expect(!!(!(abortIfSyntaxParser())), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "!(abortIfSyntaxParser())" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5854); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "!(abortIfSyntaxParser())" ")"); do { *((volatile int* )__null) = 5854; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); } } while (false); | |||
| 5855 | return false; | |||
| 5856 | } | |||
| 5857 | ||||
| 5858 | template <class ParseHandler, typename Unit> | |||
| 5859 | inline bool GeneralParser<ParseHandler, Unit>::checkLocalExportNames( | |||
| 5860 | ListNodeType node) { | |||
| 5861 | return asFinalParser()->checkLocalExportNames(node); | |||
| 5862 | } | |||
| 5863 | ||||
| 5864 | template <class ParseHandler, typename Unit> | |||
| 5865 | typename ParseHandler::NodeResult | |||
| 5866 | GeneralParser<ParseHandler, Unit>::exportClause(uint32_t begin) { | |||
| 5867 | if (!abortIfSyntaxParser()) { | |||
| 5868 | return errorResult(); | |||
| 5869 | } | |||
| 5870 | ||||
| 5871 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftCurly))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftCurly))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftCurly)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftCurly)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 5871); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftCurly)" ")"); do { *((volatile int*)__null) = 5871; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 5872 | ||||
| 5873 | ListNodeType kid; | |||
| 5874 | MOZ_TRY_VAR(kid, handler_.newList(ParseNodeKind::ExportSpecList, pos()))do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::ExportSpecList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5875 | ||||
| 5876 | TokenKind tt; | |||
| 5877 | while (true) { | |||
| 5878 | // Handle the forms |export {}| and |export { ..., }| (where ... is non | |||
| 5879 | // empty), by escaping the loop early if the next token is }. | |||
| 5880 | if (!tokenStream.getToken(&tt)) { | |||
| 5881 | return errorResult(); | |||
| 5882 | } | |||
| 5883 | ||||
| 5884 | if (tt == TokenKind::RightCurly) { | |||
| 5885 | break; | |||
| 5886 | } | |||
| 5887 | ||||
| 5888 | NameNodeType bindingName = null(); | |||
| 5889 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 5890 | MOZ_TRY_VAR(bindingName, newName(anyChars.currentName()))do { auto mozTryVarTempResult_ = (newName(anyChars.currentName ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (bindingName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5891 | } else if (tt == TokenKind::String) { | |||
| 5892 | MOZ_TRY_VAR(bindingName, moduleExportName())do { auto mozTryVarTempResult_ = (moduleExportName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (bindingName) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 5893 | } else { | |||
| 5894 | error(JSMSG_NO_BINDING_NAME); | |||
| 5895 | return errorResult(); | |||
| 5896 | } | |||
| 5897 | ||||
| 5898 | bool foundAs; | |||
| 5899 | if (!tokenStream.matchToken(&foundAs, TokenKind::As)) { | |||
| 5900 | return errorResult(); | |||
| 5901 | } | |||
| 5902 | ||||
| 5903 | NameNodeType exportName = null(); | |||
| 5904 | if (foundAs) { | |||
| 5905 | TokenKind tt; | |||
| 5906 | if (!tokenStream.getToken(&tt)) { | |||
| 5907 | return errorResult(); | |||
| 5908 | } | |||
| 5909 | ||||
| 5910 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 5911 | MOZ_TRY_VAR(exportName, newName(anyChars.currentName()))do { auto mozTryVarTempResult_ = (newName(anyChars.currentName ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exportName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5912 | } else if (tt == TokenKind::String) { | |||
| 5913 | MOZ_TRY_VAR(exportName, moduleExportName())do { auto mozTryVarTempResult_ = (moduleExportName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (exportName) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 5914 | } else { | |||
| 5915 | error(JSMSG_NO_EXPORT_NAME); | |||
| 5916 | return errorResult(); | |||
| 5917 | } | |||
| 5918 | } else { | |||
| 5919 | if (tt != TokenKind::String) { | |||
| 5920 | MOZ_TRY_VAR(exportName, newName(anyChars.currentName()))do { auto mozTryVarTempResult_ = (newName(anyChars.currentName ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exportName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5921 | } else { | |||
| 5922 | MOZ_TRY_VAR(exportName, moduleExportName())do { auto mozTryVarTempResult_ = (moduleExportName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (exportName) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 5923 | } | |||
| 5924 | } | |||
| 5925 | ||||
| 5926 | if (!checkExportedNameForClause(exportName)) { | |||
| 5927 | return errorResult(); | |||
| 5928 | } | |||
| 5929 | ||||
| 5930 | BinaryNodeType exportSpec; | |||
| 5931 | MOZ_TRY_VAR(exportSpec, handler_.newExportSpec(bindingName, exportName))do { auto mozTryVarTempResult_ = (handler_.newExportSpec(bindingName , exportName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exportSpec) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5932 | ||||
| 5933 | handler_.addList(kid, exportSpec); | |||
| 5934 | ||||
| 5935 | TokenKind next; | |||
| 5936 | if (!tokenStream.getToken(&next)) { | |||
| 5937 | return errorResult(); | |||
| 5938 | } | |||
| 5939 | ||||
| 5940 | if (next == TokenKind::RightCurly) { | |||
| 5941 | break; | |||
| 5942 | } | |||
| 5943 | ||||
| 5944 | if (next != TokenKind::Comma) { | |||
| 5945 | error(JSMSG_RC_AFTER_EXPORT_SPEC_LIST); | |||
| 5946 | return errorResult(); | |||
| 5947 | } | |||
| 5948 | } | |||
| 5949 | ||||
| 5950 | // Careful! If |from| follows, even on a new line, it must start a | |||
| 5951 | // FromClause: | |||
| 5952 | // | |||
| 5953 | // export { x } | |||
| 5954 | // from "foo"; // a single ExportDeclaration | |||
| 5955 | // | |||
| 5956 | // But if it doesn't, we might have an ASI opportunity in SlashIsRegExp | |||
| 5957 | // context: | |||
| 5958 | // | |||
| 5959 | // export { x } // ExportDeclaration, terminated by ASI | |||
| 5960 | // fro\u006D // ExpressionStatement, the name "from" | |||
| 5961 | // | |||
| 5962 | // In that case let matchOrInsertSemicolon sort out ASI or any necessary | |||
| 5963 | // error. | |||
| 5964 | bool matched; | |||
| 5965 | if (!tokenStream.matchToken(&matched, TokenKind::From, | |||
| 5966 | TokenStream::SlashIsRegExp)) { | |||
| 5967 | return errorResult(); | |||
| 5968 | } | |||
| 5969 | ||||
| 5970 | if (matched) { | |||
| 5971 | return exportFrom(begin, kid); | |||
| 5972 | } | |||
| 5973 | ||||
| 5974 | if (!matchOrInsertSemicolon()) { | |||
| 5975 | return errorResult(); | |||
| 5976 | } | |||
| 5977 | ||||
| 5978 | if (!checkLocalExportNames(kid)) { | |||
| 5979 | return errorResult(); | |||
| 5980 | } | |||
| 5981 | ||||
| 5982 | UnaryNodeType node; | |||
| 5983 | MOZ_TRY_VAR(node,do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 5984 | handler_.newExportDeclaration(kid, TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 5985 | ||||
| 5986 | if (!processExport(node)) { | |||
| 5987 | return errorResult(); | |||
| 5988 | } | |||
| 5989 | ||||
| 5990 | return node; | |||
| 5991 | } | |||
| 5992 | ||||
| 5993 | template <class ParseHandler, typename Unit> | |||
| 5994 | typename ParseHandler::UnaryNodeResult | |||
| 5995 | GeneralParser<ParseHandler, Unit>::exportVariableStatement(uint32_t begin) { | |||
| 5996 | if (!abortIfSyntaxParser()) { | |||
| 5997 | return errorResult(); | |||
| 5998 | } | |||
| 5999 | ||||
| 6000 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Var))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Var))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::Var)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Var)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6000); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Var)" ")"); do { *((volatile int*)__null) = 6000; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6001 | ||||
| 6002 | DeclarationListNodeType kid; | |||
| 6003 | MOZ_TRY_VAR(kid, declarationList(YieldIsName, ParseNodeKind::VarStmt))do { auto mozTryVarTempResult_ = (declarationList(YieldIsName , ParseNodeKind::VarStmt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6004 | if (!matchOrInsertSemicolon()) { | |||
| 6005 | return errorResult(); | |||
| 6006 | } | |||
| 6007 | if (!checkExportedNamesForDeclarationList(kid)) { | |||
| 6008 | return errorResult(); | |||
| 6009 | } | |||
| 6010 | ||||
| 6011 | UnaryNodeType node; | |||
| 6012 | MOZ_TRY_VAR(node,do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6013 | handler_.newExportDeclaration(kid, TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6014 | ||||
| 6015 | if (!processExport(node)) { | |||
| 6016 | return errorResult(); | |||
| 6017 | } | |||
| 6018 | ||||
| 6019 | return node; | |||
| 6020 | } | |||
| 6021 | ||||
| 6022 | template <class ParseHandler, typename Unit> | |||
| 6023 | typename ParseHandler::UnaryNodeResult | |||
| 6024 | GeneralParser<ParseHandler, Unit>::exportFunctionDeclaration( | |||
| 6025 | uint32_t begin, uint32_t toStringStart, | |||
| 6026 | FunctionAsyncKind asyncKind /* = SyncFunction */) { | |||
| 6027 | if (!abortIfSyntaxParser()) { | |||
| 6028 | return errorResult(); | |||
| 6029 | } | |||
| 6030 | ||||
| 6031 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Function))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Function))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Function)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Function)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6031); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Function)" ")"); do { *((volatile int*)__null) = 6031; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6032 | ||||
| 6033 | Node kid; | |||
| 6034 | MOZ_TRY_VAR(do { auto mozTryVarTempResult_ = (functionStmt(toStringStart, YieldIsName, NameRequired, asyncKind)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6035 | kid, functionStmt(toStringStart, YieldIsName, NameRequired, asyncKind))do { auto mozTryVarTempResult_ = (functionStmt(toStringStart, YieldIsName, NameRequired, asyncKind)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6036 | ||||
| 6037 | if (!checkExportedNameForFunction(handler_.asFunctionNode(kid))) { | |||
| 6038 | return errorResult(); | |||
| 6039 | } | |||
| 6040 | ||||
| 6041 | UnaryNodeType node; | |||
| 6042 | MOZ_TRY_VAR(node,do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6043 | handler_.newExportDeclaration(kid, TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6044 | ||||
| 6045 | if (!processExport(node)) { | |||
| 6046 | return errorResult(); | |||
| 6047 | } | |||
| 6048 | ||||
| 6049 | return node; | |||
| 6050 | } | |||
| 6051 | ||||
| 6052 | template <class ParseHandler, typename Unit> | |||
| 6053 | typename ParseHandler::UnaryNodeResult | |||
| 6054 | GeneralParser<ParseHandler, Unit>::exportClassDeclaration(uint32_t begin) { | |||
| 6055 | if (!abortIfSyntaxParser()) { | |||
| 6056 | return errorResult(); | |||
| 6057 | } | |||
| 6058 | ||||
| 6059 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Class))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Class))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Class)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Class)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6059); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Class)" ")"); do { *((volatile int*)__null) = 6059; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6060 | ||||
| 6061 | ClassNodeType kid; | |||
| 6062 | MOZ_TRY_VAR(kid, classDefinition(YieldIsName, ClassStatement, NameRequired))do { auto mozTryVarTempResult_ = (classDefinition(YieldIsName , ClassStatement, NameRequired)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6063 | ||||
| 6064 | if (!checkExportedNameForClass(kid)) { | |||
| 6065 | return errorResult(); | |||
| 6066 | } | |||
| 6067 | ||||
| 6068 | UnaryNodeType node; | |||
| 6069 | MOZ_TRY_VAR(node,do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6070 | handler_.newExportDeclaration(kid, TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6071 | ||||
| 6072 | if (!processExport(node)) { | |||
| 6073 | return errorResult(); | |||
| 6074 | } | |||
| 6075 | ||||
| 6076 | return node; | |||
| 6077 | } | |||
| 6078 | ||||
| 6079 | template <class ParseHandler, typename Unit> | |||
| 6080 | typename ParseHandler::UnaryNodeResult | |||
| 6081 | GeneralParser<ParseHandler, Unit>::exportLexicalDeclaration( | |||
| 6082 | uint32_t begin, DeclarationKind kind) { | |||
| 6083 | if (!abortIfSyntaxParser()) { | |||
| 6084 | return errorResult(); | |||
| 6085 | } | |||
| 6086 | ||||
| 6087 | MOZ_ASSERT(kind == DeclarationKind::Const || kind == DeclarationKind::Let)do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind == DeclarationKind::Const || kind == DeclarationKind ::Let)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(kind == DeclarationKind::Const || kind == DeclarationKind ::Let))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("kind == DeclarationKind::Const || kind == DeclarationKind::Let" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6087); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind == DeclarationKind::Const || kind == DeclarationKind::Let" ")"); do { *((volatile int*)__null) = 6087; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6088 | MOZ_ASSERT_IF(kind == DeclarationKind::Const,do { if (kind == DeclarationKind::Const) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(anyChars .isCurrentTokenType(TokenKind::Const))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Const)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Const)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6089); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Const)" ")"); do { *((volatile int*)__null) = 6089; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 6089 | anyChars.isCurrentTokenType(TokenKind::Const))do { if (kind == DeclarationKind::Const) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(anyChars .isCurrentTokenType(TokenKind::Const))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Const)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Const)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6089); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Const)" ")"); do { *((volatile int*)__null) = 6089; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 6090 | MOZ_ASSERT_IF(kind == DeclarationKind::Let,do { if (kind == DeclarationKind::Let) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(anyChars.isCurrentTokenType (TokenKind::Let))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Let)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Let)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Let)" ")"); do { *((volatile int*)__null) = 6091; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | |||
| 6091 | anyChars.isCurrentTokenType(TokenKind::Let))do { if (kind == DeclarationKind::Let) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(anyChars.isCurrentTokenType (TokenKind::Let))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Let)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Let)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Let)" ")"); do { *((volatile int*)__null) = 6091; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 6092 | ||||
| 6093 | DeclarationListNodeType kid; | |||
| 6094 | MOZ_TRY_VAR(kid, lexicalDeclaration(YieldIsName, kind))do { auto mozTryVarTempResult_ = (lexicalDeclaration(YieldIsName , kind)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6095 | if (!checkExportedNamesForDeclarationList(kid)) { | |||
| 6096 | return errorResult(); | |||
| 6097 | } | |||
| 6098 | ||||
| 6099 | UnaryNodeType node; | |||
| 6100 | MOZ_TRY_VAR(node,do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6101 | handler_.newExportDeclaration(kid, TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDeclaration (kid, TokenPos(begin, pos().end))); if ((__builtin_expect(!!( mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6102 | ||||
| 6103 | if (!processExport(node)) { | |||
| 6104 | return errorResult(); | |||
| 6105 | } | |||
| 6106 | ||||
| 6107 | return node; | |||
| 6108 | } | |||
| 6109 | ||||
| 6110 | template <class ParseHandler, typename Unit> | |||
| 6111 | typename ParseHandler::BinaryNodeResult | |||
| 6112 | GeneralParser<ParseHandler, Unit>::exportDefaultFunctionDeclaration( | |||
| 6113 | uint32_t begin, uint32_t toStringStart, | |||
| 6114 | FunctionAsyncKind asyncKind /* = SyncFunction */) { | |||
| 6115 | if (!abortIfSyntaxParser()) { | |||
| 6116 | return errorResult(); | |||
| 6117 | } | |||
| 6118 | ||||
| 6119 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Function))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Function))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Function)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Function)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6119); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Function)" ")"); do { *((volatile int*)__null) = 6119; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6120 | ||||
| 6121 | Node kid; | |||
| 6122 | MOZ_TRY_VAR(kid, functionStmt(toStringStart, YieldIsName, AllowDefaultName,do { auto mozTryVarTempResult_ = (functionStmt(toStringStart, YieldIsName, AllowDefaultName, asyncKind)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6123 | asyncKind))do { auto mozTryVarTempResult_ = (functionStmt(toStringStart, YieldIsName, AllowDefaultName, asyncKind)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6124 | ||||
| 6125 | BinaryNodeType node; | |||
| 6126 | MOZ_TRY_VAR(node, handler_.newExportDefaultDeclaration(do { auto mozTryVarTempResult_ = (handler_.newExportDefaultDeclaration ( kid, null(), TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6127 | kid, null(), TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDefaultDeclaration ( kid, null(), TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6128 | ||||
| 6129 | if (!processExport(node)) { | |||
| 6130 | return errorResult(); | |||
| 6131 | } | |||
| 6132 | ||||
| 6133 | return node; | |||
| 6134 | } | |||
| 6135 | ||||
| 6136 | template <class ParseHandler, typename Unit> | |||
| 6137 | typename ParseHandler::BinaryNodeResult | |||
| 6138 | GeneralParser<ParseHandler, Unit>::exportDefaultClassDeclaration( | |||
| 6139 | uint32_t begin) { | |||
| 6140 | if (!abortIfSyntaxParser()) { | |||
| 6141 | return errorResult(); | |||
| 6142 | } | |||
| 6143 | ||||
| 6144 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Class))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Class))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Class)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Class)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6144); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Class)" ")"); do { *((volatile int*)__null) = 6144; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6145 | ||||
| 6146 | ClassNodeType kid; | |||
| 6147 | MOZ_TRY_VAR(kid,do { auto mozTryVarTempResult_ = (classDefinition(YieldIsName , ClassStatement, AllowDefaultName)); if ((__builtin_expect(! !(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6148 | classDefinition(YieldIsName, ClassStatement, AllowDefaultName))do { auto mozTryVarTempResult_ = (classDefinition(YieldIsName , ClassStatement, AllowDefaultName)); if ((__builtin_expect(! !(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6149 | ||||
| 6150 | BinaryNodeType node; | |||
| 6151 | MOZ_TRY_VAR(node, handler_.newExportDefaultDeclaration(do { auto mozTryVarTempResult_ = (handler_.newExportDefaultDeclaration ( kid, null(), TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6152 | kid, null(), TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDefaultDeclaration ( kid, null(), TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6153 | ||||
| 6154 | if (!processExport(node)) { | |||
| 6155 | return errorResult(); | |||
| 6156 | } | |||
| 6157 | ||||
| 6158 | return node; | |||
| 6159 | } | |||
| 6160 | ||||
| 6161 | template <class ParseHandler, typename Unit> | |||
| 6162 | typename ParseHandler::BinaryNodeResult | |||
| 6163 | GeneralParser<ParseHandler, Unit>::exportDefaultAssignExpr(uint32_t begin) { | |||
| 6164 | if (!abortIfSyntaxParser()) { | |||
| 6165 | return errorResult(); | |||
| 6166 | } | |||
| 6167 | ||||
| 6168 | TaggedParserAtomIndex name = TaggedParserAtomIndex::WellKnown::default_(); | |||
| 6169 | NameNodeType nameNode; | |||
| 6170 | MOZ_TRY_VAR(nameNode, newName(name))do { auto mozTryVarTempResult_ = (newName(name)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (nameNode) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 6171 | if (!noteDeclaredName(name, DeclarationKind::Const, pos())) { | |||
| 6172 | return errorResult(); | |||
| 6173 | } | |||
| 6174 | ||||
| 6175 | Node kid; | |||
| 6176 | MOZ_TRY_VAR(kid, assignExpr(InAllowed, YieldIsName, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, YieldIsName , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6177 | ||||
| 6178 | if (!matchOrInsertSemicolon()) { | |||
| 6179 | return errorResult(); | |||
| 6180 | } | |||
| 6181 | ||||
| 6182 | BinaryNodeType node; | |||
| 6183 | MOZ_TRY_VAR(node, handler_.newExportDefaultDeclaration(do { auto mozTryVarTempResult_ = (handler_.newExportDefaultDeclaration ( kid, nameNode, TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6184 | kid, nameNode, TokenPos(begin, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newExportDefaultDeclaration ( kid, nameNode, TokenPos(begin, pos().end))); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (node) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6185 | ||||
| 6186 | if (!processExport(node)) { | |||
| 6187 | return errorResult(); | |||
| 6188 | } | |||
| 6189 | ||||
| 6190 | return node; | |||
| 6191 | } | |||
| 6192 | ||||
| 6193 | template <class ParseHandler, typename Unit> | |||
| 6194 | typename ParseHandler::BinaryNodeResult | |||
| 6195 | GeneralParser<ParseHandler, Unit>::exportDefault(uint32_t begin) { | |||
| 6196 | if (!abortIfSyntaxParser()) { | |||
| 6197 | return errorResult(); | |||
| 6198 | } | |||
| 6199 | ||||
| 6200 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Default))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Default))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Default)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Default)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6200); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Default)" ")"); do { *((volatile int*)__null) = 6200; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6201 | ||||
| 6202 | TokenKind tt; | |||
| 6203 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 6204 | return errorResult(); | |||
| 6205 | } | |||
| 6206 | ||||
| 6207 | if (!checkExportedName(TaggedParserAtomIndex::WellKnown::default_())) { | |||
| 6208 | return errorResult(); | |||
| 6209 | } | |||
| 6210 | ||||
| 6211 | switch (tt) { | |||
| 6212 | case TokenKind::Function: | |||
| 6213 | return exportDefaultFunctionDeclaration(begin, pos().begin); | |||
| 6214 | ||||
| 6215 | case TokenKind::Async: { | |||
| 6216 | TokenKind nextSameLine = TokenKind::Eof; | |||
| 6217 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
| 6218 | return errorResult(); | |||
| 6219 | } | |||
| 6220 | ||||
| 6221 | if (nextSameLine == TokenKind::Function) { | |||
| 6222 | uint32_t toStringStart = pos().begin; | |||
| 6223 | tokenStream.consumeKnownToken(TokenKind::Function); | |||
| 6224 | return exportDefaultFunctionDeclaration( | |||
| 6225 | begin, toStringStart, FunctionAsyncKind::AsyncFunction); | |||
| 6226 | } | |||
| 6227 | ||||
| 6228 | anyChars.ungetToken(); | |||
| 6229 | return exportDefaultAssignExpr(begin); | |||
| 6230 | } | |||
| 6231 | ||||
| 6232 | case TokenKind::Class: | |||
| 6233 | return exportDefaultClassDeclaration(begin); | |||
| 6234 | ||||
| 6235 | default: | |||
| 6236 | anyChars.ungetToken(); | |||
| 6237 | return exportDefaultAssignExpr(begin); | |||
| 6238 | } | |||
| 6239 | } | |||
| 6240 | ||||
| 6241 | template <class ParseHandler, typename Unit> | |||
| 6242 | typename ParseHandler::NodeResult | |||
| 6243 | GeneralParser<ParseHandler, Unit>::exportDeclaration() { | |||
| 6244 | if (!abortIfSyntaxParser()) { | |||
| 6245 | return errorResult(); | |||
| 6246 | } | |||
| 6247 | ||||
| 6248 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Export))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Export))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Export)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Export)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6248); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Export)" ")"); do { *((volatile int*)__null) = 6248; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6249 | ||||
| 6250 | if (!pc_->atModuleLevel()) { | |||
| 6251 | error(JSMSG_EXPORT_DECL_AT_TOP_LEVEL); | |||
| 6252 | return errorResult(); | |||
| 6253 | } | |||
| 6254 | ||||
| 6255 | uint32_t begin = pos().begin; | |||
| 6256 | ||||
| 6257 | TokenKind tt; | |||
| 6258 | if (!tokenStream.getToken(&tt)) { | |||
| 6259 | return errorResult(); | |||
| 6260 | } | |||
| 6261 | switch (tt) { | |||
| 6262 | case TokenKind::Mul: | |||
| 6263 | return exportBatch(begin); | |||
| 6264 | ||||
| 6265 | case TokenKind::LeftCurly: | |||
| 6266 | return exportClause(begin); | |||
| 6267 | ||||
| 6268 | case TokenKind::Var: | |||
| 6269 | return exportVariableStatement(begin); | |||
| 6270 | ||||
| 6271 | case TokenKind::Function: | |||
| 6272 | return exportFunctionDeclaration(begin, pos().begin); | |||
| 6273 | ||||
| 6274 | case TokenKind::Async: { | |||
| 6275 | TokenKind nextSameLine = TokenKind::Eof; | |||
| 6276 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
| 6277 | return errorResult(); | |||
| 6278 | } | |||
| 6279 | ||||
| 6280 | if (nextSameLine == TokenKind::Function) { | |||
| 6281 | uint32_t toStringStart = pos().begin; | |||
| 6282 | tokenStream.consumeKnownToken(TokenKind::Function); | |||
| 6283 | return exportFunctionDeclaration(begin, toStringStart, | |||
| 6284 | FunctionAsyncKind::AsyncFunction); | |||
| 6285 | } | |||
| 6286 | ||||
| 6287 | error(JSMSG_DECLARATION_AFTER_EXPORT); | |||
| 6288 | return errorResult(); | |||
| 6289 | } | |||
| 6290 | ||||
| 6291 | case TokenKind::Class: | |||
| 6292 | return exportClassDeclaration(begin); | |||
| 6293 | ||||
| 6294 | case TokenKind::Const: | |||
| 6295 | return exportLexicalDeclaration(begin, DeclarationKind::Const); | |||
| 6296 | ||||
| 6297 | case TokenKind::Let: | |||
| 6298 | return exportLexicalDeclaration(begin, DeclarationKind::Let); | |||
| 6299 | ||||
| 6300 | case TokenKind::Default: | |||
| 6301 | return exportDefault(begin); | |||
| 6302 | ||||
| 6303 | default: | |||
| 6304 | error(JSMSG_DECLARATION_AFTER_EXPORT); | |||
| 6305 | return errorResult(); | |||
| 6306 | } | |||
| 6307 | } | |||
| 6308 | ||||
| 6309 | template <class ParseHandler, typename Unit> | |||
| 6310 | typename ParseHandler::UnaryNodeResult | |||
| 6311 | GeneralParser<ParseHandler, Unit>::expressionStatement( | |||
| 6312 | YieldHandling yieldHandling, InvokedPrediction invoked) { | |||
| 6313 | anyChars.ungetToken(); | |||
| 6314 | Node pnexpr; | |||
| 6315 | MOZ_TRY_VAR(pnexpr, expr(InAllowed, yieldHandling, TripledotProhibited,do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited, nullptr, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pnexpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6316 | /* possibleError = */ nullptr, invoked))do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited, nullptr, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pnexpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6317 | if (!matchOrInsertSemicolon()) { | |||
| 6318 | return errorResult(); | |||
| 6319 | } | |||
| 6320 | return handler_.newExprStatement(pnexpr, pos().end); | |||
| 6321 | } | |||
| 6322 | ||||
| 6323 | template <class ParseHandler, typename Unit> | |||
| 6324 | typename ParseHandler::NodeResult | |||
| 6325 | GeneralParser<ParseHandler, Unit>::consequentOrAlternative( | |||
| 6326 | YieldHandling yieldHandling) { | |||
| 6327 | TokenKind next; | |||
| 6328 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
| 6329 | return errorResult(); | |||
| 6330 | } | |||
| 6331 | ||||
| 6332 | // Annex B.3.4 says that unbraced FunctionDeclarations under if/else in | |||
| 6333 | // non-strict code act as if they were braced: |if (x) function f() {}| | |||
| 6334 | // parses as |if (x) { function f() {} }|. | |||
| 6335 | // | |||
| 6336 | // Careful! FunctionDeclaration doesn't include generators or async | |||
| 6337 | // functions. | |||
| 6338 | if (next == TokenKind::Function) { | |||
| 6339 | tokenStream.consumeKnownToken(next, TokenStream::SlashIsRegExp); | |||
| 6340 | ||||
| 6341 | // Parser::statement would handle this, but as this function handles | |||
| 6342 | // every other error case, it seems best to handle this. | |||
| 6343 | if (pc_->sc()->strict()) { | |||
| 6344 | error(JSMSG_FORBIDDEN_AS_STATEMENT, "function declarations"); | |||
| 6345 | return errorResult(); | |||
| 6346 | } | |||
| 6347 | ||||
| 6348 | TokenKind maybeStar; | |||
| 6349 | if (!tokenStream.peekToken(&maybeStar)) { | |||
| 6350 | return errorResult(); | |||
| 6351 | } | |||
| 6352 | ||||
| 6353 | if (maybeStar == TokenKind::Mul) { | |||
| 6354 | error(JSMSG_FORBIDDEN_AS_STATEMENT, "generator declarations"); | |||
| 6355 | return errorResult(); | |||
| 6356 | } | |||
| 6357 | ||||
| 6358 | ParseContext::Statement stmt(pc_, StatementKind::Block); | |||
| 6359 | ParseContext::Scope scope(this); | |||
| 6360 | if (!scope.init(pc_)) { | |||
| 6361 | return errorResult(); | |||
| 6362 | } | |||
| 6363 | ||||
| 6364 | TokenPos funcPos = pos(); | |||
| 6365 | Node fun; | |||
| 6366 | MOZ_TRY_VAR(fun, functionStmt(pos().begin, yieldHandling, NameRequired))do { auto mozTryVarTempResult_ = (functionStmt(pos().begin, yieldHandling , NameRequired)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (fun) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6367 | ||||
| 6368 | ListNodeType block; | |||
| 6369 | MOZ_TRY_VAR(block, handler_.newStatementList(funcPos))do { auto mozTryVarTempResult_ = (handler_.newStatementList(funcPos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (block) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6370 | ||||
| 6371 | handler_.addStatementToList(block, fun); | |||
| 6372 | return finishLexicalScope(scope, block); | |||
| 6373 | } | |||
| 6374 | ||||
| 6375 | return statement(yieldHandling); | |||
| 6376 | } | |||
| 6377 | ||||
| 6378 | template <class ParseHandler, typename Unit> | |||
| 6379 | typename ParseHandler::TernaryNodeResult | |||
| 6380 | GeneralParser<ParseHandler, Unit>::ifStatement(YieldHandling yieldHandling) { | |||
| 6381 | Vector<Node, 4> condList(fc_), thenList(fc_); | |||
| 6382 | Vector<uint32_t, 4> posList(fc_); | |||
| 6383 | Node elseBranch; | |||
| 6384 | ||||
| 6385 | ParseContext::Statement stmt(pc_, StatementKind::If); | |||
| 6386 | ||||
| 6387 | while (true) { | |||
| 6388 | uint32_t begin = pos().begin; | |||
| 6389 | ||||
| 6390 | /* An IF node has three kids: condition, then, and optional else. */ | |||
| 6391 | Node cond; | |||
| 6392 | MOZ_TRY_VAR(cond, condition(InAllowed, yieldHandling))do { auto mozTryVarTempResult_ = (condition(InAllowed, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (cond) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 6393 | ||||
| 6394 | TokenKind tt; | |||
| 6395 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 6396 | return errorResult(); | |||
| 6397 | } | |||
| 6398 | ||||
| 6399 | Node thenBranch; | |||
| 6400 | MOZ_TRY_VAR(thenBranch, consequentOrAlternative(yieldHandling))do { auto mozTryVarTempResult_ = (consequentOrAlternative(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (thenBranch ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6401 | ||||
| 6402 | if (!condList.append(cond) || !thenList.append(thenBranch) || | |||
| 6403 | !posList.append(begin)) { | |||
| 6404 | return errorResult(); | |||
| 6405 | } | |||
| 6406 | ||||
| 6407 | bool matched; | |||
| 6408 | if (!tokenStream.matchToken(&matched, TokenKind::Else, | |||
| 6409 | TokenStream::SlashIsRegExp)) { | |||
| 6410 | return errorResult(); | |||
| 6411 | } | |||
| 6412 | if (matched) { | |||
| 6413 | if (!tokenStream.matchToken(&matched, TokenKind::If, | |||
| 6414 | TokenStream::SlashIsRegExp)) { | |||
| 6415 | return errorResult(); | |||
| 6416 | } | |||
| 6417 | if (matched) { | |||
| 6418 | continue; | |||
| 6419 | } | |||
| 6420 | MOZ_TRY_VAR(elseBranch, consequentOrAlternative(yieldHandling))do { auto mozTryVarTempResult_ = (consequentOrAlternative(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (elseBranch ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6421 | } else { | |||
| 6422 | elseBranch = null(); | |||
| 6423 | } | |||
| 6424 | break; | |||
| 6425 | } | |||
| 6426 | ||||
| 6427 | TernaryNodeType ifNode; | |||
| 6428 | for (int i = condList.length() - 1; i >= 0; i--) { | |||
| 6429 | MOZ_TRY_VAR(ifNode, handler_.newIfStatement(posList[i], condList[i],do { auto mozTryVarTempResult_ = (handler_.newIfStatement(posList [i], condList[i], thenList[i], elseBranch)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (ifNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6430 | thenList[i], elseBranch))do { auto mozTryVarTempResult_ = (handler_.newIfStatement(posList [i], condList[i], thenList[i], elseBranch)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (ifNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6431 | elseBranch = ifNode; | |||
| 6432 | } | |||
| 6433 | ||||
| 6434 | return ifNode; | |||
| 6435 | } | |||
| 6436 | ||||
| 6437 | template <class ParseHandler, typename Unit> | |||
| 6438 | typename ParseHandler::BinaryNodeResult | |||
| 6439 | GeneralParser<ParseHandler, Unit>::doWhileStatement( | |||
| 6440 | YieldHandling yieldHandling) { | |||
| 6441 | uint32_t begin = pos().begin; | |||
| 6442 | ParseContext::Statement stmt(pc_, StatementKind::DoLoop); | |||
| 6443 | Node body; | |||
| 6444 | MOZ_TRY_VAR(body, statement(yieldHandling))do { auto mozTryVarTempResult_ = (statement(yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 6445 | if (!mustMatchToken(TokenKind::While, JSMSG_WHILE_AFTER_DO)) { | |||
| 6446 | return errorResult(); | |||
| 6447 | } | |||
| 6448 | Node cond; | |||
| 6449 | MOZ_TRY_VAR(cond, condition(InAllowed, yieldHandling))do { auto mozTryVarTempResult_ = (condition(InAllowed, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (cond) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 6450 | ||||
| 6451 | // The semicolon after do-while is even more optional than most | |||
| 6452 | // semicolons in JS. Web compat required this by 2004: | |||
| 6453 | // http://bugzilla.mozilla.org/show_bug.cgi?id=238945 | |||
| 6454 | // ES3 and ES5 disagreed, but ES6 conforms to Web reality: | |||
| 6455 | // https://bugs.ecmascript.org/show_bug.cgi?id=157 | |||
| 6456 | // To parse |do {} while (true) false| correctly, use SlashIsRegExp. | |||
| 6457 | bool ignored; | |||
| 6458 | if (!tokenStream.matchToken(&ignored, TokenKind::Semi, | |||
| 6459 | TokenStream::SlashIsRegExp)) { | |||
| 6460 | return errorResult(); | |||
| 6461 | } | |||
| 6462 | return handler_.newDoWhileStatement(body, cond, TokenPos(begin, pos().end)); | |||
| 6463 | } | |||
| 6464 | ||||
| 6465 | template <class ParseHandler, typename Unit> | |||
| 6466 | typename ParseHandler::BinaryNodeResult | |||
| 6467 | GeneralParser<ParseHandler, Unit>::whileStatement(YieldHandling yieldHandling) { | |||
| 6468 | uint32_t begin = pos().begin; | |||
| 6469 | ParseContext::Statement stmt(pc_, StatementKind::WhileLoop); | |||
| 6470 | Node cond; | |||
| 6471 | MOZ_TRY_VAR(cond, condition(InAllowed, yieldHandling))do { auto mozTryVarTempResult_ = (condition(InAllowed, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (cond) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 6472 | Node body; | |||
| 6473 | MOZ_TRY_VAR(body, statement(yieldHandling))do { auto mozTryVarTempResult_ = (statement(yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 6474 | return handler_.newWhileStatement(begin, cond, body); | |||
| 6475 | } | |||
| 6476 | ||||
| 6477 | template <class ParseHandler, typename Unit> | |||
| 6478 | bool GeneralParser<ParseHandler, Unit>::matchInOrOf(bool* isForInp, | |||
| 6479 | bool* isForOfp) { | |||
| 6480 | TokenKind tt; | |||
| 6481 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 6482 | return false; | |||
| 6483 | } | |||
| 6484 | ||||
| 6485 | *isForInp = tt == TokenKind::In; | |||
| 6486 | *isForOfp = tt == TokenKind::Of; | |||
| 6487 | if (!*isForInp && !*isForOfp) { | |||
| 6488 | anyChars.ungetToken(); | |||
| 6489 | } | |||
| 6490 | ||||
| 6491 | MOZ_ASSERT_IF(*isForInp || *isForOfp, *isForInp != *isForOfp)do { if (*isForInp || *isForOfp) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(*isForInp != *isForOfp )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(*isForInp != *isForOfp))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("*isForInp != *isForOfp", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6491); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*isForInp != *isForOfp" ")"); do { *((volatile int*)__null) = 6491; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 6492 | return true; | |||
| 6493 | } | |||
| 6494 | ||||
| 6495 | template <class ParseHandler, typename Unit> | |||
| 6496 | bool GeneralParser<ParseHandler, Unit>::forHeadStart( | |||
| 6497 | YieldHandling yieldHandling, IteratorKind iterKind, | |||
| 6498 | ParseNodeKind* forHeadKind, Node* forInitialPart, | |||
| 6499 | Maybe<ParseContext::Scope>& forLoopLexicalScope, | |||
| 6500 | Node* forInOrOfExpression) { | |||
| 6501 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftParen))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftParen))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftParen)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftParen)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6501); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftParen)" ")"); do { *((volatile int*)__null) = 6501; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6502 | ||||
| 6503 | TokenKind tt; | |||
| 6504 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 6505 | return false; | |||
| 6506 | } | |||
| 6507 | ||||
| 6508 | // Super-duper easy case: |for (;| is a C-style for-loop with no init | |||
| 6509 | // component. | |||
| 6510 | if (tt == TokenKind::Semi) { | |||
| 6511 | *forInitialPart = null(); | |||
| 6512 | *forHeadKind = ParseNodeKind::ForHead; | |||
| 6513 | return true; | |||
| 6514 | } | |||
| 6515 | ||||
| 6516 | // Parsing after |for (var| is also relatively simple (from this method's | |||
| 6517 | // point of view). No block-related work complicates matters, so delegate | |||
| 6518 | // to Parser::declaration. | |||
| 6519 | if (tt == TokenKind::Var) { | |||
| 6520 | tokenStream.consumeKnownToken(tt, TokenStream::SlashIsRegExp); | |||
| 6521 | ||||
| 6522 | // Pass null for block object because |var| declarations don't use one. | |||
| 6523 | MOZ_TRY_VAR_OR_RETURN(*forInitialPart,do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , ParseNodeKind::VarStmt, forHeadKind, forInOrOfExpression)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0 ))) { return (false); } (*forInitialPart) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 6524 | declarationList(yieldHandling, ParseNodeKind::VarStmt,do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , ParseNodeKind::VarStmt, forHeadKind, forInOrOfExpression)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0 ))) { return (false); } (*forInitialPart) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 6525 | forHeadKind, forInOrOfExpression),do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , ParseNodeKind::VarStmt, forHeadKind, forInOrOfExpression)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0 ))) { return (false); } (*forInitialPart) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 6526 | false)do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , ParseNodeKind::VarStmt, forHeadKind, forInOrOfExpression)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0 ))) { return (false); } (*forInitialPart) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 6527 | return true; | |||
| 6528 | } | |||
| 6529 | ||||
| 6530 | // Otherwise we have a lexical declaration or an expression. | |||
| 6531 | ||||
| 6532 | // For-in loop backwards compatibility requires that |let| starting a | |||
| 6533 | // for-loop that's not a (new to ES6) for-of loop, in non-strict mode code, | |||
| 6534 | // parse as an identifier. (|let| in for-of is always a declaration.) | |||
| 6535 | // | |||
| 6536 | // For-of loops can't start with the token sequence "async of", because that | |||
| 6537 | // leads to a shift-reduce conflict when parsing |for (async of => {};;)| or | |||
| 6538 | // |for (async of [])|. | |||
| 6539 | bool parsingLexicalDeclaration = false; | |||
| 6540 | bool letIsIdentifier = false; | |||
| 6541 | bool startsWithForOf = false; | |||
| 6542 | ||||
| 6543 | if (tt == TokenKind::Const) { | |||
| 6544 | parsingLexicalDeclaration = true; | |||
| 6545 | tokenStream.consumeKnownToken(tt, TokenStream::SlashIsRegExp); | |||
| 6546 | } | |||
| 6547 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 6548 | else if (tt == TokenKind::Await) { | |||
| 6549 | if (!pc_->isAsync()) { | |||
| 6550 | if (pc_->atModuleTopLevel()) { | |||
| 6551 | if (!options().topLevelAwait) { | |||
| 6552 | error(JSMSG_TOP_LEVEL_AWAIT_NOT_SUPPORTED); | |||
| 6553 | return false; | |||
| 6554 | } | |||
| 6555 | pc_->sc()->asModuleContext()->setIsAsync(); | |||
| 6556 | MOZ_ASSERT(pc_->isAsync())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isAsync())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isAsync()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isAsync()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6556); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isAsync()" ")"); do { *((volatile int*)__null) = 6556; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6557 | } | |||
| 6558 | } | |||
| 6559 | if (pc_->isAsync()) { | |||
| 6560 | // Try finding evidence of a AwaitUsingDeclaration the syntax for which | |||
| 6561 | // would be: | |||
| 6562 | // await [no LineTerminator here] using [no LineTerminator here] | |||
| 6563 | // identifier | |||
| 6564 | tokenStream.consumeKnownToken(tt, TokenStream::SlashIsRegExp); | |||
| 6565 | ||||
| 6566 | TokenKind nextTok = TokenKind::Eof; | |||
| 6567 | if (!tokenStream.peekTokenSameLine(&nextTok, | |||
| 6568 | TokenStream::SlashIsRegExp)) { | |||
| 6569 | return false; | |||
| 6570 | } | |||
| 6571 | ||||
| 6572 | if (nextTok == TokenKind::Using) { | |||
| 6573 | tokenStream.consumeKnownToken(nextTok, TokenStream::SlashIsRegExp); | |||
| 6574 | ||||
| 6575 | TokenKind nextTokIdent = TokenKind::Eof; | |||
| 6576 | if (!tokenStream.peekTokenSameLine(&nextTokIdent)) { | |||
| 6577 | return false; | |||
| 6578 | } | |||
| 6579 | ||||
| 6580 | if (TokenKindIsPossibleIdentifier(nextTokIdent)) { | |||
| 6581 | parsingLexicalDeclaration = true; | |||
| 6582 | } else { | |||
| 6583 | anyChars.ungetToken(); // put back using token | |||
| 6584 | anyChars.ungetToken(); // put back await token | |||
| 6585 | } | |||
| 6586 | } else { | |||
| 6587 | anyChars.ungetToken(); // put back await token | |||
| 6588 | } | |||
| 6589 | } | |||
| 6590 | } else if (tt == TokenKind::Using) { | |||
| 6591 | tokenStream.consumeKnownToken(tt, TokenStream::SlashIsRegExp); | |||
| 6592 | ||||
| 6593 | // Look ahead to find either a 'of' token or if not identifier | |||
| 6594 | TokenKind nextTok = TokenKind::Eof; | |||
| 6595 | if (!tokenStream.peekTokenSameLine(&nextTok)) { | |||
| 6596 | return false; | |||
| 6597 | } | |||
| 6598 | ||||
| 6599 | if (nextTok == TokenKind::Of || !TokenKindIsPossibleIdentifier(nextTok)) { | |||
| 6600 | anyChars.ungetToken(); // we didnt find a valid case of using decl put | |||
| 6601 | // back the token | |||
| 6602 | } else { | |||
| 6603 | parsingLexicalDeclaration = true; | |||
| 6604 | } | |||
| 6605 | } | |||
| 6606 | #endif | |||
| 6607 | else if (tt == TokenKind::Let) { | |||
| 6608 | // We could have a {For,Lexical}Declaration, or we could have a | |||
| 6609 | // LeftHandSideExpression with lookahead restrictions so it's not | |||
| 6610 | // ambiguous with the former. Check for a continuation of the former | |||
| 6611 | // to decide which we have. | |||
| 6612 | tokenStream.consumeKnownToken(TokenKind::Let, TokenStream::SlashIsRegExp); | |||
| 6613 | ||||
| 6614 | TokenKind next; | |||
| 6615 | if (!tokenStream.peekToken(&next)) { | |||
| 6616 | return false; | |||
| 6617 | } | |||
| 6618 | ||||
| 6619 | parsingLexicalDeclaration = nextTokenContinuesLetDeclaration(next); | |||
| 6620 | if (!parsingLexicalDeclaration) { | |||
| 6621 | // If we end up here, we may have `for (let <reserved word> of/in ...`, | |||
| 6622 | // which is not valid. | |||
| 6623 | if (next != TokenKind::In && next != TokenKind::Of && | |||
| 6624 | TokenKindIsReservedWord(next)) { | |||
| 6625 | tokenStream.consumeKnownToken(next); | |||
| 6626 | error(JSMSG_UNEXPECTED_TOKEN_NO_EXPECT, TokenKindToDesc(next)); | |||
| 6627 | return false; | |||
| 6628 | } | |||
| 6629 | ||||
| 6630 | anyChars.ungetToken(); | |||
| 6631 | letIsIdentifier = true; | |||
| 6632 | } | |||
| 6633 | } else if (tt == TokenKind::Async && iterKind == IteratorKind::Sync) { | |||
| 6634 | tokenStream.consumeKnownToken(TokenKind::Async, TokenStream::SlashIsRegExp); | |||
| 6635 | ||||
| 6636 | TokenKind next; | |||
| 6637 | if (!tokenStream.peekToken(&next)) { | |||
| 6638 | return false; | |||
| 6639 | } | |||
| 6640 | ||||
| 6641 | if (next == TokenKind::Of) { | |||
| 6642 | startsWithForOf = true; | |||
| 6643 | } | |||
| 6644 | anyChars.ungetToken(); | |||
| 6645 | } | |||
| 6646 | ||||
| 6647 | if (parsingLexicalDeclaration) { | |||
| 6648 | if (options().selfHostingMode) { | |||
| 6649 | error(JSMSG_SELFHOSTED_LEXICAL); | |||
| 6650 | return false; | |||
| 6651 | } | |||
| 6652 | ||||
| 6653 | forLoopLexicalScope.emplace(this); | |||
| 6654 | if (!forLoopLexicalScope->init(pc_)) { | |||
| 6655 | return false; | |||
| 6656 | } | |||
| 6657 | ||||
| 6658 | // Push a temporary ForLoopLexicalHead Statement that allows for | |||
| 6659 | // lexical declarations, as they are usually allowed only in braced | |||
| 6660 | // statements. | |||
| 6661 | ParseContext::Statement forHeadStmt(pc_, StatementKind::ForLoopLexicalHead); | |||
| 6662 | ||||
| 6663 | ParseNodeKind declKind; | |||
| 6664 | switch (tt) { | |||
| 6665 | case TokenKind::Const: | |||
| 6666 | declKind = ParseNodeKind::ConstDecl; | |||
| 6667 | break; | |||
| 6668 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 6669 | case TokenKind::Using: | |||
| 6670 | declKind = ParseNodeKind::UsingDecl; | |||
| 6671 | break; | |||
| 6672 | case TokenKind::Await: | |||
| 6673 | declKind = ParseNodeKind::AwaitUsingDecl; | |||
| 6674 | break; | |||
| 6675 | #endif | |||
| 6676 | case TokenKind::Let: | |||
| 6677 | declKind = ParseNodeKind::LetDecl; | |||
| 6678 | break; | |||
| 6679 | default: | |||
| 6680 | MOZ_CRASH("unexpected node kind")do { do { } while (false); MOZ_ReportCrash("" "unexpected node kind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6680); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected node kind" ")"); do { *((volatile int*)__null) = 6680; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 6681 | } | |||
| 6682 | ||||
| 6683 | MOZ_TRY_VAR_OR_RETURN(*forInitialPart,do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , declKind, forHeadKind, forInOrOfExpression)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 6684 | declarationList(yieldHandling, declKind, forHeadKind,do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , declKind, forHeadKind, forInOrOfExpression)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 6685 | forInOrOfExpression),do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , declKind, forHeadKind, forInOrOfExpression)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 6686 | false)do { auto parserTryVarTempResult_ = (declarationList(yieldHandling , declKind, forHeadKind, forInOrOfExpression)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 6687 | return true; | |||
| 6688 | } | |||
| 6689 | ||||
| 6690 | uint32_t exprOffset; | |||
| 6691 | if (!tokenStream.peekOffset(&exprOffset, TokenStream::SlashIsRegExp)) { | |||
| 6692 | return false; | |||
| 6693 | } | |||
| 6694 | ||||
| 6695 | // Finally, handle for-loops that start with expressions. Pass | |||
| 6696 | // |InProhibited| so that |in| isn't parsed in a RelationalExpression as a | |||
| 6697 | // binary operator. |in| makes it a for-in loop, *not* an |in| expression. | |||
| 6698 | PossibleError possibleError(*this); | |||
| 6699 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (expr(InProhibited, yieldHandling , TripledotProhibited, &possibleError)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 6700 | *forInitialPart,do { auto parserTryVarTempResult_ = (expr(InProhibited, yieldHandling , TripledotProhibited, &possibleError)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 6701 | expr(InProhibited, yieldHandling, TripledotProhibited, &possibleError),do { auto parserTryVarTempResult_ = (expr(InProhibited, yieldHandling , TripledotProhibited, &possibleError)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 6702 | false)do { auto parserTryVarTempResult_ = (expr(InProhibited, yieldHandling , TripledotProhibited, &possibleError)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (*forInitialPart) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 6703 | ||||
| 6704 | bool isForIn, isForOf; | |||
| 6705 | if (!matchInOrOf(&isForIn, &isForOf)) { | |||
| 6706 | return false; | |||
| 6707 | } | |||
| 6708 | ||||
| 6709 | // If we don't encounter 'in'/'of', we have a for(;;) loop. We've handled | |||
| 6710 | // the init expression; the caller handles the rest. | |||
| 6711 | if (!isForIn && !isForOf) { | |||
| 6712 | if (!possibleError.checkForExpressionError()) { | |||
| 6713 | return false; | |||
| 6714 | } | |||
| 6715 | ||||
| 6716 | *forHeadKind = ParseNodeKind::ForHead; | |||
| 6717 | return true; | |||
| 6718 | } | |||
| 6719 | ||||
| 6720 | MOZ_ASSERT(isForIn != isForOf)do { static_assert( mozilla::detail::AssertionConditionType< decltype(isForIn != isForOf)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(isForIn != isForOf))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("isForIn != isForOf" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6720); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isForIn != isForOf" ")"); do { *((volatile int*)__null) = 6720; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6721 | ||||
| 6722 | // In a for-of loop, 'let' that starts the loop head is a |let| keyword, | |||
| 6723 | // per the [lookahead ≠ let] restriction on the LeftHandSideExpression | |||
| 6724 | // variant of such loops. Expressions that start with |let| can't be used | |||
| 6725 | // here. | |||
| 6726 | // | |||
| 6727 | // var let = {}; | |||
| 6728 | // for (let.prop of [1]) // BAD | |||
| 6729 | // break; | |||
| 6730 | // | |||
| 6731 | // See ES6 13.7. | |||
| 6732 | if (isForOf && letIsIdentifier) { | |||
| 6733 | errorAt(exprOffset, JSMSG_BAD_STARTING_FOROF_LHS, "let"); | |||
| 6734 | return false; | |||
| 6735 | } | |||
| 6736 | ||||
| 6737 | // In a for-of loop, the LeftHandSideExpression isn't allowed to be an | |||
| 6738 | // identifier named "async" per the [lookahead ≠ async of] restriction. | |||
| 6739 | if (isForOf && startsWithForOf) { | |||
| 6740 | errorAt(exprOffset, JSMSG_BAD_STARTING_FOROF_LHS, "async of"); | |||
| 6741 | return false; | |||
| 6742 | } | |||
| 6743 | ||||
| 6744 | *forHeadKind = isForIn ? ParseNodeKind::ForIn : ParseNodeKind::ForOf; | |||
| 6745 | ||||
| 6746 | // Verify the left-hand side expression doesn't have a forbidden form. | |||
| 6747 | if (handler_.isUnparenthesizedDestructuringPattern(*forInitialPart)) { | |||
| 6748 | if (!possibleError.checkForDestructuringErrorOrWarning()) { | |||
| 6749 | return false; | |||
| 6750 | } | |||
| 6751 | } else if (handler_.isName(*forInitialPart)) { | |||
| 6752 | if (const char* chars = nameIsArgumentsOrEval(*forInitialPart)) { | |||
| 6753 | // |chars| is "arguments" or "eval" here. | |||
| 6754 | if (!strictModeErrorAt(exprOffset, JSMSG_BAD_STRICT_ASSIGN, chars)) { | |||
| 6755 | return false; | |||
| 6756 | } | |||
| 6757 | } | |||
| 6758 | } else if (handler_.isArgumentsLength(*forInitialPart)) { | |||
| 6759 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
| 6760 | } else if (handler_.isPropertyOrPrivateMemberAccess(*forInitialPart)) { | |||
| 6761 | // Permitted: no additional testing/fixup needed. | |||
| 6762 | } else if (handler_.isFunctionCall(*forInitialPart)) { | |||
| 6763 | if (!strictModeErrorAt(exprOffset, JSMSG_BAD_FOR_LEFTSIDE)) { | |||
| 6764 | return false; | |||
| 6765 | } | |||
| 6766 | } else { | |||
| 6767 | errorAt(exprOffset, JSMSG_BAD_FOR_LEFTSIDE); | |||
| 6768 | return false; | |||
| 6769 | } | |||
| 6770 | ||||
| 6771 | if (!possibleError.checkForExpressionError()) { | |||
| 6772 | return false; | |||
| 6773 | } | |||
| 6774 | ||||
| 6775 | // Finally, parse the iterated expression, making the for-loop's closing | |||
| 6776 | // ')' the next token. | |||
| 6777 | MOZ_TRY_VAR_OR_RETURN(*forInOrOfExpression,do { auto parserTryVarTempResult_ = (expressionAfterForInOrOf (*forHeadKind, yieldHandling)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (*forInOrOfExpression) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 6778 | expressionAfterForInOrOf(*forHeadKind, yieldHandling),do { auto parserTryVarTempResult_ = (expressionAfterForInOrOf (*forHeadKind, yieldHandling)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (*forInOrOfExpression) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 6779 | false)do { auto parserTryVarTempResult_ = (expressionAfterForInOrOf (*forHeadKind, yieldHandling)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (*forInOrOfExpression) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 6780 | return true; | |||
| 6781 | } | |||
| 6782 | ||||
| 6783 | template <class ParseHandler, typename Unit> | |||
| 6784 | typename ParseHandler::NodeResult | |||
| 6785 | GeneralParser<ParseHandler, Unit>::forStatement(YieldHandling yieldHandling) { | |||
| 6786 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::For))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::For))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::For)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::For)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6786); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::For)" ")"); do { *((volatile int*)__null) = 6786; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6787 | ||||
| 6788 | uint32_t begin = pos().begin; | |||
| 6789 | ||||
| 6790 | ParseContext::Statement stmt(pc_, StatementKind::ForLoop); | |||
| 6791 | ||||
| 6792 | IteratorKind iterKind = IteratorKind::Sync; | |||
| 6793 | unsigned iflags = 0; | |||
| 6794 | ||||
| 6795 | if (pc_->isAsync() || pc_->sc()->isModuleContext()) { | |||
| 6796 | bool matched; | |||
| 6797 | if (!tokenStream.matchToken(&matched, TokenKind::Await)) { | |||
| 6798 | return errorResult(); | |||
| 6799 | } | |||
| 6800 | ||||
| 6801 | // If we come across a top level await here, mark the module as async. | |||
| 6802 | if (matched && pc_->sc()->isModuleContext() && !pc_->isAsync()) { | |||
| 6803 | if (!options().topLevelAwait) { | |||
| 6804 | error(JSMSG_TOP_LEVEL_AWAIT_NOT_SUPPORTED); | |||
| 6805 | return errorResult(); | |||
| 6806 | } | |||
| 6807 | pc_->sc()->asModuleContext()->setIsAsync(); | |||
| 6808 | MOZ_ASSERT(pc_->isAsync())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isAsync())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isAsync()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isAsync()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6808); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isAsync()" ")"); do { *((volatile int*)__null) = 6808; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6809 | } | |||
| 6810 | ||||
| 6811 | if (matched) { | |||
| 6812 | iflags |= JSITER_FORAWAITOF0x80; | |||
| 6813 | iterKind = IteratorKind::Async; | |||
| 6814 | } | |||
| 6815 | } | |||
| 6816 | ||||
| 6817 | if (!mustMatchToken(TokenKind::LeftParen, [this](TokenKind actual) { | |||
| 6818 | this->error((actual == TokenKind::Await && !this->pc_->isAsync()) | |||
| 6819 | ? JSMSG_FOR_AWAIT_OUTSIDE_ASYNC | |||
| 6820 | : JSMSG_PAREN_AFTER_FOR); | |||
| 6821 | })) { | |||
| 6822 | return errorResult(); | |||
| 6823 | } | |||
| 6824 | ||||
| 6825 | // ParseNodeKind::ForHead, ParseNodeKind::ForIn, or | |||
| 6826 | // ParseNodeKind::ForOf depending on the loop type. | |||
| 6827 | ParseNodeKind headKind; | |||
| 6828 | ||||
| 6829 | // |x| in either |for (x; ...; ...)| or |for (x in/of ...)|. | |||
| 6830 | Node startNode; | |||
| 6831 | ||||
| 6832 | // The next two variables are used to implement `for (let/const ...)`. | |||
| 6833 | // | |||
| 6834 | // We generate an implicit block, wrapping the whole loop, to store loop | |||
| 6835 | // variables declared this way. Note that if the loop uses `for (var...)` | |||
| 6836 | // instead, those variables go on some existing enclosing scope, so no | |||
| 6837 | // implicit block scope is created. | |||
| 6838 | // | |||
| 6839 | // Both variables remain null/none if the loop is any other form. | |||
| 6840 | ||||
| 6841 | // The static block scope for the implicit block scope. | |||
| 6842 | Maybe<ParseContext::Scope> forLoopLexicalScope; | |||
| 6843 | ||||
| 6844 | // The expression being iterated over, for for-in/of loops only. Unused | |||
| 6845 | // for for(;;) loops. | |||
| 6846 | Node iteratedExpr; | |||
| 6847 | ||||
| 6848 | // Parse the entirety of the loop-head for a for-in/of loop (so the next | |||
| 6849 | // token is the closing ')'): | |||
| 6850 | // | |||
| 6851 | // for (... in/of ...) ... | |||
| 6852 | // ^next token | |||
| 6853 | // | |||
| 6854 | // ...OR, parse up to the first ';' in a C-style for-loop: | |||
| 6855 | // | |||
| 6856 | // for (...; ...; ...) ... | |||
| 6857 | // ^next token | |||
| 6858 | // | |||
| 6859 | // In either case the subsequent token can be consistently accessed using | |||
| 6860 | // TokenStream::SlashIsDiv semantics. | |||
| 6861 | if (!forHeadStart(yieldHandling, iterKind, &headKind, &startNode, | |||
| 6862 | forLoopLexicalScope, &iteratedExpr)) { | |||
| 6863 | return errorResult(); | |||
| 6864 | } | |||
| 6865 | ||||
| 6866 | MOZ_ASSERT(headKind == ParseNodeKind::ForIn ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind ::ForOf || headKind == ParseNodeKind::ForHead)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind ::ForHead))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind::ForHead" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6868); AnnotateMozCrashReason("MOZ_ASSERT" "(" "headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind::ForHead" ")"); do { *((volatile int*)__null) = 6868; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 6867 | headKind == ParseNodeKind::ForOf ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind ::ForOf || headKind == ParseNodeKind::ForHead)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind ::ForHead))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind::ForHead" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6868); AnnotateMozCrashReason("MOZ_ASSERT" "(" "headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind::ForHead" ")"); do { *((volatile int*)__null) = 6868; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 6868 | headKind == ParseNodeKind::ForHead)do { static_assert( mozilla::detail::AssertionConditionType< decltype(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind ::ForOf || headKind == ParseNodeKind::ForHead)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind ::ForHead))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind::ForHead" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6868); AnnotateMozCrashReason("MOZ_ASSERT" "(" "headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf || headKind == ParseNodeKind::ForHead" ")"); do { *((volatile int*)__null) = 6868; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6869 | ||||
| 6870 | if (iterKind == IteratorKind::Async && headKind != ParseNodeKind::ForOf) { | |||
| 6871 | errorAt(begin, JSMSG_FOR_AWAIT_NOT_OF); | |||
| 6872 | return errorResult(); | |||
| 6873 | } | |||
| 6874 | ||||
| 6875 | TernaryNodeType forHead; | |||
| 6876 | if (headKind == ParseNodeKind::ForHead) { | |||
| 6877 | Node init = startNode; | |||
| 6878 | ||||
| 6879 | // Look for an operand: |for (;| means we might have already examined | |||
| 6880 | // this semicolon with that modifier. | |||
| 6881 | if (!mustMatchToken(TokenKind::Semi, JSMSG_SEMI_AFTER_FOR_INIT)) { | |||
| 6882 | return errorResult(); | |||
| 6883 | } | |||
| 6884 | ||||
| 6885 | TokenKind tt; | |||
| 6886 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 6887 | return errorResult(); | |||
| 6888 | } | |||
| 6889 | ||||
| 6890 | Node test; | |||
| 6891 | if (tt == TokenKind::Semi) { | |||
| 6892 | test = null(); | |||
| 6893 | } else { | |||
| 6894 | MOZ_TRY_VAR(test, expr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (test) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6895 | } | |||
| 6896 | ||||
| 6897 | if (!mustMatchToken(TokenKind::Semi, JSMSG_SEMI_AFTER_FOR_COND)) { | |||
| 6898 | return errorResult(); | |||
| 6899 | } | |||
| 6900 | ||||
| 6901 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 6902 | return errorResult(); | |||
| 6903 | } | |||
| 6904 | ||||
| 6905 | Node update; | |||
| 6906 | if (tt == TokenKind::RightParen) { | |||
| 6907 | update = null(); | |||
| 6908 | } else { | |||
| 6909 | MOZ_TRY_VAR(update, expr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (update) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6910 | } | |||
| 6911 | ||||
| 6912 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_FOR_CTRL)) { | |||
| 6913 | return errorResult(); | |||
| 6914 | } | |||
| 6915 | ||||
| 6916 | TokenPos headPos(begin, pos().end); | |||
| 6917 | MOZ_TRY_VAR(forHead, handler_.newForHead(init, test, update, headPos))do { auto mozTryVarTempResult_ = (handler_.newForHead(init, test , update, headPos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (forHead) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6918 | } else { | |||
| 6919 | MOZ_ASSERT(headKind == ParseNodeKind::ForIn ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind ::ForOf)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind ::ForOf))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6920); AnnotateMozCrashReason("MOZ_ASSERT" "(" "headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf" ")"); do { *((volatile int*)__null) = 6920; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 6920 | headKind == ParseNodeKind::ForOf)do { static_assert( mozilla::detail::AssertionConditionType< decltype(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind ::ForOf)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind ::ForOf))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6920); AnnotateMozCrashReason("MOZ_ASSERT" "(" "headKind == ParseNodeKind::ForIn || headKind == ParseNodeKind::ForOf" ")"); do { *((volatile int*)__null) = 6920; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6921 | ||||
| 6922 | // |target| is the LeftHandSideExpression or declaration to which the | |||
| 6923 | // per-iteration value (an arbitrary value exposed by the iteration | |||
| 6924 | // protocol, or a string naming a property) is assigned. | |||
| 6925 | Node target = startNode; | |||
| 6926 | ||||
| 6927 | // Parse the rest of the for-in/of head. | |||
| 6928 | if (headKind == ParseNodeKind::ForIn) { | |||
| 6929 | stmt.refineForKind(StatementKind::ForInLoop); | |||
| 6930 | } else { | |||
| 6931 | stmt.refineForKind(StatementKind::ForOfLoop); | |||
| 6932 | } | |||
| 6933 | ||||
| 6934 | // Parser::declaration consumed everything up to the closing ')'. That | |||
| 6935 | // token follows an {Assignment,}Expression and so must be interpreted | |||
| 6936 | // as an operand to be consistent with normal expression tokenizing. | |||
| 6937 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_FOR_CTRL)) { | |||
| 6938 | return errorResult(); | |||
| 6939 | } | |||
| 6940 | ||||
| 6941 | TokenPos headPos(begin, pos().end); | |||
| 6942 | MOZ_TRY_VAR(forHead, handler_.newForInOrOfHead(headKind, target,do { auto mozTryVarTempResult_ = (handler_.newForInOrOfHead(headKind , target, iteratedExpr, headPos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (forHead) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 6943 | iteratedExpr, headPos))do { auto mozTryVarTempResult_ = (handler_.newForInOrOfHead(headKind , target, iteratedExpr, headPos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (forHead) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6944 | } | |||
| 6945 | ||||
| 6946 | Node body; | |||
| 6947 | MOZ_TRY_VAR(body, statement(yieldHandling))do { auto mozTryVarTempResult_ = (statement(yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 6948 | ||||
| 6949 | ForNodeType forLoop; | |||
| 6950 | MOZ_TRY_VAR(forLoop, handler_.newForStatement(begin, forHead, body, iflags))do { auto mozTryVarTempResult_ = (handler_.newForStatement(begin , forHead, body, iflags)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (forLoop) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6951 | ||||
| 6952 | if (forLoopLexicalScope) { | |||
| 6953 | return finishLexicalScope(*forLoopLexicalScope, forLoop); | |||
| 6954 | } | |||
| 6955 | ||||
| 6956 | return forLoop; | |||
| 6957 | } | |||
| 6958 | ||||
| 6959 | template <class ParseHandler, typename Unit> | |||
| 6960 | typename ParseHandler::SwitchStatementResult | |||
| 6961 | GeneralParser<ParseHandler, Unit>::switchStatement( | |||
| 6962 | YieldHandling yieldHandling) { | |||
| 6963 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Switch))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Switch))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Switch)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Switch)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 6963); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Switch)" ")"); do { *((volatile int*)__null) = 6963; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 6964 | uint32_t begin = pos().begin; | |||
| 6965 | ||||
| 6966 | if (!mustMatchToken(TokenKind::LeftParen, JSMSG_PAREN_BEFORE_SWITCH)) { | |||
| 6967 | return errorResult(); | |||
| 6968 | } | |||
| 6969 | ||||
| 6970 | Node discriminant; | |||
| 6971 | MOZ_TRY_VAR(discriminant,do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (discriminant) = mozTryVarTempResult_.unwrap(); } while (0 ) | |||
| 6972 | exprInParens(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (discriminant) = mozTryVarTempResult_.unwrap(); } while (0 ); | |||
| 6973 | ||||
| 6974 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_SWITCH)) { | |||
| 6975 | return errorResult(); | |||
| 6976 | } | |||
| 6977 | if (!mustMatchToken(TokenKind::LeftCurly, JSMSG_CURLY_BEFORE_SWITCH)) { | |||
| 6978 | return errorResult(); | |||
| 6979 | } | |||
| 6980 | ||||
| 6981 | ParseContext::Statement stmt(pc_, StatementKind::Switch); | |||
| 6982 | ParseContext::Scope scope(this); | |||
| 6983 | if (!scope.init(pc_)) { | |||
| 6984 | return errorResult(); | |||
| 6985 | } | |||
| 6986 | ||||
| 6987 | ListNodeType caseList; | |||
| 6988 | MOZ_TRY_VAR(caseList, handler_.newStatementList(pos()))do { auto mozTryVarTempResult_ = (handler_.newStatementList(pos ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (caseList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 6989 | ||||
| 6990 | bool seenDefault = false; | |||
| 6991 | TokenKind tt; | |||
| 6992 | while (true) { | |||
| 6993 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 6994 | return errorResult(); | |||
| 6995 | } | |||
| 6996 | if (tt == TokenKind::RightCurly) { | |||
| 6997 | break; | |||
| 6998 | } | |||
| 6999 | uint32_t caseBegin = pos().begin; | |||
| 7000 | ||||
| 7001 | Node caseExpr; | |||
| 7002 | switch (tt) { | |||
| 7003 | case TokenKind::Default: | |||
| 7004 | if (seenDefault) { | |||
| 7005 | error(JSMSG_TOO_MANY_DEFAULTS); | |||
| 7006 | return errorResult(); | |||
| 7007 | } | |||
| 7008 | seenDefault = true; | |||
| 7009 | caseExpr = null(); // The default case has pn_left == nullptr. | |||
| 7010 | break; | |||
| 7011 | ||||
| 7012 | case TokenKind::Case: | |||
| 7013 | MOZ_TRY_VAR(caseExpr,do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (caseExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 7014 | expr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (caseExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7015 | break; | |||
| 7016 | ||||
| 7017 | default: | |||
| 7018 | error(JSMSG_BAD_SWITCH); | |||
| 7019 | return errorResult(); | |||
| 7020 | } | |||
| 7021 | ||||
| 7022 | if (!mustMatchToken(TokenKind::Colon, JSMSG_COLON_AFTER_CASE)) { | |||
| 7023 | return errorResult(); | |||
| 7024 | } | |||
| 7025 | ||||
| 7026 | ListNodeType body; | |||
| 7027 | MOZ_TRY_VAR(body, handler_.newStatementList(pos()))do { auto mozTryVarTempResult_ = (handler_.newStatementList(pos ())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7028 | ||||
| 7029 | bool afterReturn = false; | |||
| 7030 | bool warnedAboutStatementsAfterReturn = false; | |||
| 7031 | uint32_t statementBegin = 0; | |||
| 7032 | while (true) { | |||
| 7033 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 7034 | return errorResult(); | |||
| 7035 | } | |||
| 7036 | if (tt == TokenKind::RightCurly || tt == TokenKind::Case || | |||
| 7037 | tt == TokenKind::Default) { | |||
| 7038 | break; | |||
| 7039 | } | |||
| 7040 | if (afterReturn) { | |||
| 7041 | if (!tokenStream.peekOffset(&statementBegin, | |||
| 7042 | TokenStream::SlashIsRegExp)) { | |||
| 7043 | return errorResult(); | |||
| 7044 | } | |||
| 7045 | } | |||
| 7046 | Node stmt; | |||
| 7047 | MOZ_TRY_VAR(stmt, statementListItem(yieldHandling))do { auto mozTryVarTempResult_ = (statementListItem(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (stmt) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 7048 | if (!warnedAboutStatementsAfterReturn) { | |||
| 7049 | if (afterReturn) { | |||
| 7050 | if (!handler_.isStatementPermittedAfterReturnStatement(stmt)) { | |||
| 7051 | if (!warningAt(statementBegin, JSMSG_STMT_AFTER_RETURN)) { | |||
| 7052 | return errorResult(); | |||
| 7053 | } | |||
| 7054 | ||||
| 7055 | warnedAboutStatementsAfterReturn = true; | |||
| 7056 | } | |||
| 7057 | } else if (handler_.isReturnStatement(stmt)) { | |||
| 7058 | afterReturn = true; | |||
| 7059 | } | |||
| 7060 | } | |||
| 7061 | handler_.addStatementToList(body, stmt); | |||
| 7062 | } | |||
| 7063 | ||||
| 7064 | CaseClauseType caseClause; | |||
| 7065 | MOZ_TRY_VAR(caseClause,do { auto mozTryVarTempResult_ = (handler_.newCaseOrDefault(caseBegin , caseExpr, body)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (caseClause) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 7066 | handler_.newCaseOrDefault(caseBegin, caseExpr, body))do { auto mozTryVarTempResult_ = (handler_.newCaseOrDefault(caseBegin , caseExpr, body)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (caseClause) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7067 | handler_.addCaseStatementToList(caseList, caseClause); | |||
| 7068 | } | |||
| 7069 | ||||
| 7070 | LexicalScopeNodeType lexicalForCaseList; | |||
| 7071 | MOZ_TRY_VAR(lexicalForCaseList, finishLexicalScope(scope, caseList))do { auto mozTryVarTempResult_ = (finishLexicalScope(scope, caseList )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (lexicalForCaseList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7072 | ||||
| 7073 | handler_.setEndPosition(lexicalForCaseList, pos().end); | |||
| 7074 | ||||
| 7075 | return handler_.newSwitchStatement(begin, discriminant, lexicalForCaseList, | |||
| 7076 | seenDefault); | |||
| 7077 | } | |||
| 7078 | ||||
| 7079 | template <class ParseHandler, typename Unit> | |||
| 7080 | typename ParseHandler::ContinueStatementResult | |||
| 7081 | GeneralParser<ParseHandler, Unit>::continueStatement( | |||
| 7082 | YieldHandling yieldHandling) { | |||
| 7083 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Continue))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Continue))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Continue)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Continue)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7083); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Continue)" ")"); do { *((volatile int*)__null) = 7083; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7084 | uint32_t begin = pos().begin; | |||
| 7085 | ||||
| 7086 | TaggedParserAtomIndex label; | |||
| 7087 | if (!matchLabel(yieldHandling, &label)) { | |||
| 7088 | return errorResult(); | |||
| 7089 | } | |||
| 7090 | ||||
| 7091 | auto validity = pc_->checkContinueStatement(label); | |||
| 7092 | if (validity.isErr()) { | |||
| 7093 | switch (validity.unwrapErr()) { | |||
| 7094 | case ParseContext::ContinueStatementError::NotInALoop: | |||
| 7095 | errorAt(begin, JSMSG_BAD_CONTINUE); | |||
| 7096 | break; | |||
| 7097 | case ParseContext::ContinueStatementError::LabelNotFound: | |||
| 7098 | error(JSMSG_LABEL_NOT_FOUND); | |||
| 7099 | break; | |||
| 7100 | } | |||
| 7101 | return errorResult(); | |||
| 7102 | } | |||
| 7103 | ||||
| 7104 | if (!matchOrInsertSemicolon()) { | |||
| 7105 | return errorResult(); | |||
| 7106 | } | |||
| 7107 | ||||
| 7108 | return handler_.newContinueStatement(label, TokenPos(begin, pos().end)); | |||
| 7109 | } | |||
| 7110 | ||||
| 7111 | template <class ParseHandler, typename Unit> | |||
| 7112 | typename ParseHandler::BreakStatementResult | |||
| 7113 | GeneralParser<ParseHandler, Unit>::breakStatement(YieldHandling yieldHandling) { | |||
| 7114 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Break))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Break))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Break)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Break)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7114); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Break)" ")"); do { *((volatile int*)__null) = 7114; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7115 | uint32_t begin = pos().begin; | |||
| 7116 | ||||
| 7117 | TaggedParserAtomIndex label; | |||
| 7118 | if (!matchLabel(yieldHandling, &label)) { | |||
| 7119 | return errorResult(); | |||
| 7120 | } | |||
| 7121 | ||||
| 7122 | auto validity = pc_->checkBreakStatement(label); | |||
| 7123 | if (validity.isErr()) { | |||
| 7124 | switch (validity.unwrapErr()) { | |||
| 7125 | case ParseContext::BreakStatementError::ToughBreak: | |||
| 7126 | errorAt(begin, JSMSG_TOUGH_BREAK); | |||
| 7127 | return errorResult(); | |||
| 7128 | case ParseContext::BreakStatementError::LabelNotFound: | |||
| 7129 | error(JSMSG_LABEL_NOT_FOUND); | |||
| 7130 | return errorResult(); | |||
| 7131 | } | |||
| 7132 | } | |||
| 7133 | ||||
| 7134 | if (!matchOrInsertSemicolon()) { | |||
| 7135 | return errorResult(); | |||
| 7136 | } | |||
| 7137 | ||||
| 7138 | return handler_.newBreakStatement(label, TokenPos(begin, pos().end)); | |||
| 7139 | } | |||
| 7140 | ||||
| 7141 | template <class ParseHandler, typename Unit> | |||
| 7142 | typename ParseHandler::UnaryNodeResult | |||
| 7143 | GeneralParser<ParseHandler, Unit>::returnStatement( | |||
| 7144 | YieldHandling yieldHandling) { | |||
| 7145 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Return))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Return))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Return)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Return)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7145); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Return)" ")"); do { *((volatile int*)__null) = 7145; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7146 | uint32_t begin = pos().begin; | |||
| 7147 | ||||
| 7148 | MOZ_ASSERT(pc_->isFunctionBox())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isFunctionBox())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isFunctionBox()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isFunctionBox()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7148); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isFunctionBox()" ")"); do { *((volatile int*)__null) = 7148; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7149 | ||||
| 7150 | // Parse an optional operand. | |||
| 7151 | // | |||
| 7152 | // This is ugly, but we don't want to require a semicolon. | |||
| 7153 | Node exprNode; | |||
| 7154 | TokenKind tt = TokenKind::Eof; | |||
| 7155 | if (!tokenStream.peekTokenSameLine(&tt, TokenStream::SlashIsRegExp)) { | |||
| 7156 | return errorResult(); | |||
| 7157 | } | |||
| 7158 | switch (tt) { | |||
| 7159 | case TokenKind::Eol: | |||
| 7160 | case TokenKind::Eof: | |||
| 7161 | case TokenKind::Semi: | |||
| 7162 | case TokenKind::RightCurly: | |||
| 7163 | exprNode = null(); | |||
| 7164 | break; | |||
| 7165 | default: { | |||
| 7166 | MOZ_TRY_VAR(exprNode,do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exprNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 7167 | expr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exprNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7168 | } | |||
| 7169 | } | |||
| 7170 | ||||
| 7171 | if (!matchOrInsertSemicolon()) { | |||
| 7172 | return errorResult(); | |||
| 7173 | } | |||
| 7174 | ||||
| 7175 | return handler_.newReturnStatement(exprNode, TokenPos(begin, pos().end)); | |||
| 7176 | } | |||
| 7177 | ||||
| 7178 | template <class ParseHandler, typename Unit> | |||
| 7179 | typename ParseHandler::UnaryNodeResult | |||
| 7180 | GeneralParser<ParseHandler, Unit>::yieldExpression(InHandling inHandling) { | |||
| 7181 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Yield))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Yield))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Yield)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Yield)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7181); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Yield)" ")"); do { *((volatile int*)__null) = 7181; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7182 | uint32_t begin = pos().begin; | |||
| 7183 | ||||
| 7184 | MOZ_ASSERT(pc_->isGenerator())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isGenerator())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isGenerator()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isGenerator()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7184); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isGenerator()" ")"); do { *((volatile int*)__null) = 7184; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7185 | MOZ_ASSERT(pc_->isFunctionBox())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isFunctionBox())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isFunctionBox()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isFunctionBox()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7185); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isFunctionBox()" ")"); do { *((volatile int*)__null) = 7185; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7186 | ||||
| 7187 | pc_->lastYieldOffset = begin; | |||
| 7188 | ||||
| 7189 | Node exprNode; | |||
| 7190 | ParseNodeKind kind = ParseNodeKind::YieldExpr; | |||
| 7191 | TokenKind tt = TokenKind::Eof; | |||
| 7192 | if (!tokenStream.peekTokenSameLine(&tt, TokenStream::SlashIsRegExp)) { | |||
| 7193 | return errorResult(); | |||
| 7194 | } | |||
| 7195 | switch (tt) { | |||
| 7196 | // TokenKind::Eol is special; it implements the [no LineTerminator here] | |||
| 7197 | // quirk in the grammar. | |||
| 7198 | case TokenKind::Eol: | |||
| 7199 | // The rest of these make up the complete set of tokens that can | |||
| 7200 | // appear after any of the places where AssignmentExpression is used | |||
| 7201 | // throughout the grammar. Conveniently, none of them can also be the | |||
| 7202 | // start an expression. | |||
| 7203 | case TokenKind::Eof: | |||
| 7204 | case TokenKind::Semi: | |||
| 7205 | case TokenKind::RightCurly: | |||
| 7206 | case TokenKind::RightBracket: | |||
| 7207 | case TokenKind::RightParen: | |||
| 7208 | case TokenKind::Colon: | |||
| 7209 | case TokenKind::Comma: | |||
| 7210 | case TokenKind::In: // Annex B.3.6 `for (x = yield in y) ;` | |||
| 7211 | // No value. | |||
| 7212 | exprNode = null(); | |||
| 7213 | break; | |||
| 7214 | case TokenKind::Mul: | |||
| 7215 | kind = ParseNodeKind::YieldStarExpr; | |||
| 7216 | tokenStream.consumeKnownToken(TokenKind::Mul, TokenStream::SlashIsRegExp); | |||
| 7217 | [[fallthrough]]; | |||
| 7218 | default: | |||
| 7219 | MOZ_TRY_VAR(exprNode,do { auto mozTryVarTempResult_ = (assignExpr(inHandling, YieldIsKeyword , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exprNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 7220 | assignExpr(inHandling, YieldIsKeyword, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(inHandling, YieldIsKeyword , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exprNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7221 | } | |||
| 7222 | if (kind == ParseNodeKind::YieldStarExpr) { | |||
| 7223 | return handler_.newYieldStarExpression(begin, exprNode); | |||
| 7224 | } | |||
| 7225 | return handler_.newYieldExpression(begin, exprNode); | |||
| 7226 | } | |||
| 7227 | ||||
| 7228 | template <class ParseHandler, typename Unit> | |||
| 7229 | typename ParseHandler::BinaryNodeResult | |||
| 7230 | GeneralParser<ParseHandler, Unit>::withStatement(YieldHandling yieldHandling) { | |||
| 7231 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::With))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::With))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::With)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::With)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7231); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::With)" ")"); do { *((volatile int*)__null) = 7231; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7232 | uint32_t begin = pos().begin; | |||
| 7233 | ||||
| 7234 | if (pc_->sc()->strict()) { | |||
| 7235 | if (!strictModeError(JSMSG_STRICT_CODE_WITH)) { | |||
| 7236 | return errorResult(); | |||
| 7237 | } | |||
| 7238 | } | |||
| 7239 | ||||
| 7240 | if (!mustMatchToken(TokenKind::LeftParen, JSMSG_PAREN_BEFORE_WITH)) { | |||
| 7241 | return errorResult(); | |||
| 7242 | } | |||
| 7243 | ||||
| 7244 | Node objectExpr; | |||
| 7245 | MOZ_TRY_VAR(objectExpr,do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (objectExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 7246 | exprInParens(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (objectExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7247 | ||||
| 7248 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_WITH)) { | |||
| 7249 | return errorResult(); | |||
| 7250 | } | |||
| 7251 | ||||
| 7252 | Node innerBlock; | |||
| 7253 | { | |||
| 7254 | ParseContext::Statement stmt(pc_, StatementKind::With); | |||
| 7255 | MOZ_TRY_VAR(innerBlock, statement(yieldHandling))do { auto mozTryVarTempResult_ = (statement(yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (innerBlock) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 7256 | } | |||
| 7257 | ||||
| 7258 | pc_->sc()->setBindingsAccessedDynamically(); | |||
| 7259 | ||||
| 7260 | return handler_.newWithStatement(begin, objectExpr, innerBlock); | |||
| 7261 | } | |||
| 7262 | ||||
| 7263 | template <class ParseHandler, typename Unit> | |||
| 7264 | typename ParseHandler::NodeResult | |||
| 7265 | GeneralParser<ParseHandler, Unit>::labeledItem(YieldHandling yieldHandling) { | |||
| 7266 | TokenKind tt; | |||
| 7267 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 7268 | return errorResult(); | |||
| 7269 | } | |||
| 7270 | ||||
| 7271 | if (tt == TokenKind::Function) { | |||
| 7272 | TokenKind next; | |||
| 7273 | if (!tokenStream.peekToken(&next)) { | |||
| 7274 | return errorResult(); | |||
| 7275 | } | |||
| 7276 | ||||
| 7277 | // GeneratorDeclaration is only matched by HoistableDeclaration in | |||
| 7278 | // StatementListItem, so generators can't be inside labels. | |||
| 7279 | if (next == TokenKind::Mul) { | |||
| 7280 | error(JSMSG_GENERATOR_LABEL); | |||
| 7281 | return errorResult(); | |||
| 7282 | } | |||
| 7283 | ||||
| 7284 | // Per 13.13.1 it's a syntax error if LabelledItem: FunctionDeclaration | |||
| 7285 | // is ever matched. Per Annex B.3.2 that modifies this text, this | |||
| 7286 | // applies only to strict mode code. | |||
| 7287 | if (pc_->sc()->strict()) { | |||
| 7288 | error(JSMSG_FUNCTION_LABEL); | |||
| 7289 | return errorResult(); | |||
| 7290 | } | |||
| 7291 | ||||
| 7292 | return functionStmt(pos().begin, yieldHandling, NameRequired); | |||
| 7293 | } | |||
| 7294 | ||||
| 7295 | anyChars.ungetToken(); | |||
| 7296 | return statement(yieldHandling); | |||
| 7297 | } | |||
| 7298 | ||||
| 7299 | template <class ParseHandler, typename Unit> | |||
| 7300 | typename ParseHandler::LabeledStatementResult | |||
| 7301 | GeneralParser<ParseHandler, Unit>::labeledStatement( | |||
| 7302 | YieldHandling yieldHandling) { | |||
| 7303 | TaggedParserAtomIndex label = labelIdentifier(yieldHandling); | |||
| 7304 | if (!label) { | |||
| 7305 | return errorResult(); | |||
| 7306 | } | |||
| 7307 | ||||
| 7308 | auto hasSameLabel = [&label](ParseContext::LabelStatement* stmt) { | |||
| 7309 | return stmt->label() == label; | |||
| 7310 | }; | |||
| 7311 | ||||
| 7312 | uint32_t begin = pos().begin; | |||
| 7313 | ||||
| 7314 | if (pc_->template findInnermostStatement<ParseContext::LabelStatement>( | |||
| 7315 | hasSameLabel)) { | |||
| 7316 | errorAt(begin, JSMSG_DUPLICATE_LABEL); | |||
| 7317 | return errorResult(); | |||
| 7318 | } | |||
| 7319 | ||||
| 7320 | tokenStream.consumeKnownToken(TokenKind::Colon); | |||
| 7321 | ||||
| 7322 | /* Push a label struct and parse the statement. */ | |||
| 7323 | ParseContext::LabelStatement stmt(pc_, label); | |||
| 7324 | Node pn; | |||
| 7325 | MOZ_TRY_VAR(pn, labeledItem(yieldHandling))do { auto mozTryVarTempResult_ = (labeledItem(yieldHandling)) ; if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0)) ) { return mozTryVarTempResult_.propagateErr(); } (pn) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 7326 | ||||
| 7327 | return handler_.newLabeledStatement(label, pn, begin); | |||
| 7328 | } | |||
| 7329 | ||||
| 7330 | template <class ParseHandler, typename Unit> | |||
| 7331 | typename ParseHandler::UnaryNodeResult | |||
| 7332 | GeneralParser<ParseHandler, Unit>::throwStatement(YieldHandling yieldHandling) { | |||
| 7333 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Throw))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Throw))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Throw)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Throw)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7333); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Throw)" ")"); do { *((volatile int*)__null) = 7333; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7334 | uint32_t begin = pos().begin; | |||
| 7335 | ||||
| 7336 | /* ECMA-262 Edition 3 says 'throw [no LineTerminator here] Expr'. */ | |||
| 7337 | TokenKind tt = TokenKind::Eof; | |||
| 7338 | if (!tokenStream.peekTokenSameLine(&tt, TokenStream::SlashIsRegExp)) { | |||
| 7339 | return errorResult(); | |||
| 7340 | } | |||
| 7341 | if (tt == TokenKind::Eof || tt == TokenKind::Semi || | |||
| 7342 | tt == TokenKind::RightCurly) { | |||
| 7343 | error(JSMSG_MISSING_EXPR_AFTER_THROW); | |||
| 7344 | return errorResult(); | |||
| 7345 | } | |||
| 7346 | if (tt == TokenKind::Eol) { | |||
| 7347 | error(JSMSG_LINE_BREAK_AFTER_THROW); | |||
| 7348 | return errorResult(); | |||
| 7349 | } | |||
| 7350 | ||||
| 7351 | Node throwExpr; | |||
| 7352 | MOZ_TRY_VAR(throwExpr, expr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (throwExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7353 | ||||
| 7354 | if (!matchOrInsertSemicolon()) { | |||
| 7355 | return errorResult(); | |||
| 7356 | } | |||
| 7357 | ||||
| 7358 | return handler_.newThrowStatement(throwExpr, TokenPos(begin, pos().end)); | |||
| 7359 | } | |||
| 7360 | ||||
| 7361 | template <class ParseHandler, typename Unit> | |||
| 7362 | typename ParseHandler::TernaryNodeResult | |||
| 7363 | GeneralParser<ParseHandler, Unit>::tryStatement(YieldHandling yieldHandling) { | |||
| 7364 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Try))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Try))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::Try)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Try)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7364); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Try)" ")"); do { *((volatile int*)__null) = 7364; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 7365 | uint32_t begin = pos().begin; | |||
| 7366 | ||||
| 7367 | /* | |||
| 7368 | * try nodes are ternary. | |||
| 7369 | * kid1 is the try statement | |||
| 7370 | * kid2 is the catch node list or null | |||
| 7371 | * kid3 is the finally statement | |||
| 7372 | * | |||
| 7373 | * catch nodes are binary. | |||
| 7374 | * left is the catch-name/pattern or null | |||
| 7375 | * right is the catch block | |||
| 7376 | * | |||
| 7377 | * catch lvalue nodes are either: | |||
| 7378 | * a single identifier | |||
| 7379 | * TokenKind::RightBracket for a destructuring left-hand side | |||
| 7380 | * TokenKind::RightCurly for a destructuring left-hand side | |||
| 7381 | * | |||
| 7382 | * finally nodes are TokenKind::LeftCurly statement lists. | |||
| 7383 | */ | |||
| 7384 | ||||
| 7385 | Node innerBlock; | |||
| 7386 | { | |||
| 7387 | if (!mustMatchToken(TokenKind::LeftCurly, JSMSG_CURLY_BEFORE_TRY)) { | |||
| 7388 | return errorResult(); | |||
| 7389 | } | |||
| 7390 | ||||
| 7391 | uint32_t openedPos = pos().begin; | |||
| 7392 | ||||
| 7393 | ParseContext::Statement stmt(pc_, StatementKind::Try); | |||
| 7394 | ParseContext::Scope scope(this); | |||
| 7395 | if (!scope.init(pc_)) { | |||
| 7396 | return errorResult(); | |||
| 7397 | } | |||
| 7398 | ||||
| 7399 | MOZ_TRY_VAR(innerBlock, statementList(yieldHandling))do { auto mozTryVarTempResult_ = (statementList(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (innerBlock ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7400 | ||||
| 7401 | MOZ_TRY_VAR(innerBlock, finishLexicalScope(scope, innerBlock))do { auto mozTryVarTempResult_ = (finishLexicalScope(scope, innerBlock )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (innerBlock ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7402 | ||||
| 7403 | if (!mustMatchToken( | |||
| 7404 | TokenKind::RightCurly, [this, openedPos](TokenKind actual) { | |||
| 7405 | this->reportMissingClosing(JSMSG_CURLY_AFTER_TRY, | |||
| 7406 | JSMSG_CURLY_OPENED, openedPos); | |||
| 7407 | })) { | |||
| 7408 | return errorResult(); | |||
| 7409 | } | |||
| 7410 | } | |||
| 7411 | ||||
| 7412 | LexicalScopeNodeType catchScope = null(); | |||
| 7413 | TokenKind tt; | |||
| 7414 | if (!tokenStream.getToken(&tt)) { | |||
| 7415 | return errorResult(); | |||
| 7416 | } | |||
| 7417 | if (tt == TokenKind::Catch) { | |||
| 7418 | /* | |||
| 7419 | * Create a lexical scope node around the whole catch clause, | |||
| 7420 | * including the head. | |||
| 7421 | */ | |||
| 7422 | ParseContext::Statement stmt(pc_, StatementKind::Catch); | |||
| 7423 | ParseContext::Scope scope(this); | |||
| 7424 | if (!scope.init(pc_)) { | |||
| 7425 | return errorResult(); | |||
| 7426 | } | |||
| 7427 | ||||
| 7428 | /* | |||
| 7429 | * Legal catch forms are: | |||
| 7430 | * catch (lhs) { | |||
| 7431 | * catch { | |||
| 7432 | * where lhs is a name or a destructuring left-hand side. | |||
| 7433 | */ | |||
| 7434 | bool omittedBinding; | |||
| 7435 | if (!tokenStream.matchToken(&omittedBinding, TokenKind::LeftCurly)) { | |||
| 7436 | return errorResult(); | |||
| 7437 | } | |||
| 7438 | ||||
| 7439 | Node catchName; | |||
| 7440 | if (omittedBinding) { | |||
| 7441 | catchName = null(); | |||
| 7442 | } else { | |||
| 7443 | if (!mustMatchToken(TokenKind::LeftParen, JSMSG_PAREN_BEFORE_CATCH)) { | |||
| 7444 | return errorResult(); | |||
| 7445 | } | |||
| 7446 | ||||
| 7447 | if (!tokenStream.getToken(&tt)) { | |||
| 7448 | return errorResult(); | |||
| 7449 | } | |||
| 7450 | switch (tt) { | |||
| 7451 | case TokenKind::LeftBracket: | |||
| 7452 | case TokenKind::LeftCurly: | |||
| 7453 | MOZ_TRY_VAR(catchName,do { auto mozTryVarTempResult_ = (destructuringDeclaration(DeclarationKind ::CatchParameter, yieldHandling, tt)); if ((__builtin_expect( !!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (catchName) = mozTryVarTempResult_.unwrap( ); } while (0) | |||
| 7454 | destructuringDeclaration(DeclarationKind::CatchParameter,do { auto mozTryVarTempResult_ = (destructuringDeclaration(DeclarationKind ::CatchParameter, yieldHandling, tt)); if ((__builtin_expect( !!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (catchName) = mozTryVarTempResult_.unwrap( ); } while (0) | |||
| 7455 | yieldHandling, tt))do { auto mozTryVarTempResult_ = (destructuringDeclaration(DeclarationKind ::CatchParameter, yieldHandling, tt)); if ((__builtin_expect( !!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (catchName) = mozTryVarTempResult_.unwrap( ); } while (0); | |||
| 7456 | break; | |||
| 7457 | ||||
| 7458 | default: { | |||
| 7459 | if (!TokenKindIsPossibleIdentifierName(tt)) { | |||
| 7460 | error(JSMSG_CATCH_IDENTIFIER); | |||
| 7461 | return errorResult(); | |||
| 7462 | } | |||
| 7463 | ||||
| 7464 | MOZ_TRY_VAR(catchName,do { auto mozTryVarTempResult_ = (bindingIdentifier(DeclarationKind ::SimpleCatchParameter, yieldHandling)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (catchName) = mozTryVarTempResult_.unwrap( ); } while (0) | |||
| 7465 | bindingIdentifier(DeclarationKind::SimpleCatchParameter,do { auto mozTryVarTempResult_ = (bindingIdentifier(DeclarationKind ::SimpleCatchParameter, yieldHandling)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (catchName) = mozTryVarTempResult_.unwrap( ); } while (0) | |||
| 7466 | yieldHandling))do { auto mozTryVarTempResult_ = (bindingIdentifier(DeclarationKind ::SimpleCatchParameter, yieldHandling)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (catchName) = mozTryVarTempResult_.unwrap( ); } while (0); | |||
| 7467 | break; | |||
| 7468 | } | |||
| 7469 | } | |||
| 7470 | ||||
| 7471 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_CATCH)) { | |||
| 7472 | return errorResult(); | |||
| 7473 | } | |||
| 7474 | ||||
| 7475 | if (!mustMatchToken(TokenKind::LeftCurly, JSMSG_CURLY_BEFORE_CATCH)) { | |||
| 7476 | return errorResult(); | |||
| 7477 | } | |||
| 7478 | } | |||
| 7479 | ||||
| 7480 | LexicalScopeNodeType catchBody; | |||
| 7481 | MOZ_TRY_VAR(catchBody, catchBlockStatement(yieldHandling, scope))do { auto mozTryVarTempResult_ = (catchBlockStatement(yieldHandling , scope)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (catchBody ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7482 | ||||
| 7483 | MOZ_TRY_VAR(catchScope, finishLexicalScope(scope, catchBody))do { auto mozTryVarTempResult_ = (finishLexicalScope(scope, catchBody )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (catchScope ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7484 | ||||
| 7485 | if (!handler_.setupCatchScope(catchScope, catchName, catchBody)) { | |||
| 7486 | return errorResult(); | |||
| 7487 | } | |||
| 7488 | handler_.setEndPosition(catchScope, pos().end); | |||
| 7489 | ||||
| 7490 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 7491 | return errorResult(); | |||
| 7492 | } | |||
| 7493 | } | |||
| 7494 | ||||
| 7495 | Node finallyBlock = null(); | |||
| 7496 | ||||
| 7497 | if (tt == TokenKind::Finally) { | |||
| 7498 | if (!mustMatchToken(TokenKind::LeftCurly, JSMSG_CURLY_BEFORE_FINALLY)) { | |||
| 7499 | return errorResult(); | |||
| 7500 | } | |||
| 7501 | ||||
| 7502 | uint32_t openedPos = pos().begin; | |||
| 7503 | ||||
| 7504 | ParseContext::Statement stmt(pc_, StatementKind::Finally); | |||
| 7505 | ParseContext::Scope scope(this); | |||
| 7506 | if (!scope.init(pc_)) { | |||
| 7507 | return errorResult(); | |||
| 7508 | } | |||
| 7509 | ||||
| 7510 | MOZ_TRY_VAR(finallyBlock, statementList(yieldHandling))do { auto mozTryVarTempResult_ = (statementList(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (finallyBlock ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7511 | ||||
| 7512 | MOZ_TRY_VAR(finallyBlock, finishLexicalScope(scope, finallyBlock))do { auto mozTryVarTempResult_ = (finishLexicalScope(scope, finallyBlock )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (finallyBlock ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7513 | ||||
| 7514 | if (!mustMatchToken( | |||
| 7515 | TokenKind::RightCurly, [this, openedPos](TokenKind actual) { | |||
| 7516 | this->reportMissingClosing(JSMSG_CURLY_AFTER_FINALLY, | |||
| 7517 | JSMSG_CURLY_OPENED, openedPos); | |||
| 7518 | })) { | |||
| 7519 | return errorResult(); | |||
| 7520 | } | |||
| 7521 | } else { | |||
| 7522 | anyChars.ungetToken(); | |||
| 7523 | } | |||
| 7524 | if (!catchScope && !finallyBlock) { | |||
| 7525 | error(JSMSG_CATCH_OR_FINALLY); | |||
| 7526 | return errorResult(); | |||
| 7527 | } | |||
| 7528 | ||||
| 7529 | return handler_.newTryStatement(begin, innerBlock, catchScope, finallyBlock); | |||
| 7530 | } | |||
| 7531 | ||||
| 7532 | template <class ParseHandler, typename Unit> | |||
| 7533 | typename ParseHandler::LexicalScopeNodeResult | |||
| 7534 | GeneralParser<ParseHandler, Unit>::catchBlockStatement( | |||
| 7535 | YieldHandling yieldHandling, ParseContext::Scope& catchParamScope) { | |||
| 7536 | uint32_t openedPos = pos().begin; | |||
| 7537 | ||||
| 7538 | ParseContext::Statement stmt(pc_, StatementKind::Block); | |||
| 7539 | ||||
| 7540 | // ES 13.15.7 CatchClauseEvaluation | |||
| 7541 | // | |||
| 7542 | // Step 8 means that the body of a catch block always has an additional | |||
| 7543 | // lexical scope. | |||
| 7544 | ParseContext::Scope scope(this); | |||
| 7545 | if (!scope.init(pc_)) { | |||
| 7546 | return errorResult(); | |||
| 7547 | } | |||
| 7548 | ||||
| 7549 | // The catch parameter names cannot be redeclared inside the catch | |||
| 7550 | // block, so declare the name in the inner scope. | |||
| 7551 | if (!scope.addCatchParameters(pc_, catchParamScope)) { | |||
| 7552 | return errorResult(); | |||
| 7553 | } | |||
| 7554 | ||||
| 7555 | ListNodeType list; | |||
| 7556 | MOZ_TRY_VAR(list, statementList(yieldHandling))do { auto mozTryVarTempResult_ = (statementList(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (list) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 7557 | ||||
| 7558 | if (!mustMatchToken( | |||
| 7559 | TokenKind::RightCurly, [this, openedPos](TokenKind actual) { | |||
| 7560 | this->reportMissingClosing(JSMSG_CURLY_AFTER_CATCH, | |||
| 7561 | JSMSG_CURLY_OPENED, openedPos); | |||
| 7562 | })) { | |||
| 7563 | return errorResult(); | |||
| 7564 | } | |||
| 7565 | ||||
| 7566 | // The catch parameter names are not bound in the body scope, so remove | |||
| 7567 | // them before generating bindings. | |||
| 7568 | scope.removeCatchParameters(pc_, catchParamScope); | |||
| 7569 | return finishLexicalScope(scope, list); | |||
| 7570 | } | |||
| 7571 | ||||
| 7572 | template <class ParseHandler, typename Unit> | |||
| 7573 | typename ParseHandler::DebuggerStatementResult | |||
| 7574 | GeneralParser<ParseHandler, Unit>::debuggerStatement() { | |||
| 7575 | TokenPos p; | |||
| 7576 | p.begin = pos().begin; | |||
| 7577 | if (!matchOrInsertSemicolon()) { | |||
| 7578 | return errorResult(); | |||
| 7579 | } | |||
| 7580 | p.end = pos().end; | |||
| 7581 | ||||
| 7582 | return handler_.newDebuggerStatement(p); | |||
| 7583 | } | |||
| 7584 | ||||
| 7585 | static AccessorType ToAccessorType(PropertyType propType) { | |||
| 7586 | switch (propType) { | |||
| 7587 | case PropertyType::Getter: | |||
| 7588 | return AccessorType::Getter; | |||
| 7589 | case PropertyType::Setter: | |||
| 7590 | return AccessorType::Setter; | |||
| 7591 | case PropertyType::Normal: | |||
| 7592 | case PropertyType::Method: | |||
| 7593 | case PropertyType::GeneratorMethod: | |||
| 7594 | case PropertyType::AsyncMethod: | |||
| 7595 | case PropertyType::AsyncGeneratorMethod: | |||
| 7596 | case PropertyType::Constructor: | |||
| 7597 | case PropertyType::DerivedConstructor: | |||
| 7598 | return AccessorType::None; | |||
| 7599 | default: | |||
| 7600 | MOZ_CRASH("unexpected property type")do { do { } while (false); MOZ_ReportCrash("" "unexpected property type" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 7600); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected property type" ")"); do { *((volatile int*)__null) = 7600; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 7601 | } | |||
| 7602 | } | |||
| 7603 | ||||
| 7604 | #ifdef ENABLE_DECORATORS | |||
| 7605 | template <class ParseHandler, typename Unit> | |||
| 7606 | typename ParseHandler::ListNodeResult | |||
| 7607 | GeneralParser<ParseHandler, Unit>::decoratorList(YieldHandling yieldHandling) { | |||
| 7608 | ListNodeType decorators; | |||
| 7609 | MOZ_TRY_VAR(decorators,do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::DecoratorList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (decorators) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 7610 | handler_.newList(ParseNodeKind::DecoratorList, pos()))do { auto mozTryVarTempResult_ = (handler_.newList(ParseNodeKind ::DecoratorList, pos())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (decorators) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7611 | ||||
| 7612 | // Build a decorator list element. At each entry point to this loop we have | |||
| 7613 | // already consumed the |@| token | |||
| 7614 | TokenKind tt; | |||
| 7615 | for (;;) { | |||
| 7616 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsInvalid)) { | |||
| 7617 | return errorResult(); | |||
| 7618 | } | |||
| 7619 | ||||
| 7620 | Node decorator; | |||
| 7621 | MOZ_TRY_VAR(decorator, decoratorExpr(yieldHandling, tt))do { auto mozTryVarTempResult_ = (decoratorExpr(yieldHandling , tt)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr() ), 0))) { return mozTryVarTempResult_.propagateErr(); } (decorator ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 7622 | ||||
| 7623 | handler_.addList(decorators, decorator); | |||
| 7624 | ||||
| 7625 | if (!tokenStream.getToken(&tt)) { | |||
| 7626 | return errorResult(); | |||
| 7627 | } | |||
| 7628 | if (tt != TokenKind::At) { | |||
| 7629 | anyChars.ungetToken(); | |||
| 7630 | break; | |||
| 7631 | } | |||
| 7632 | } | |||
| 7633 | return decorators; | |||
| 7634 | } | |||
| 7635 | #endif | |||
| 7636 | ||||
| 7637 | template <class ParseHandler, typename Unit> | |||
| 7638 | bool GeneralParser<ParseHandler, Unit>::classMember( | |||
| 7639 | YieldHandling yieldHandling, const ParseContext::ClassStatement& classStmt, | |||
| 7640 | TaggedParserAtomIndex className, uint32_t classStartOffset, | |||
| 7641 | HasHeritage hasHeritage, ClassInitializedMembers& classInitializedMembers, | |||
| 7642 | ListNodeType& classMembers, bool* done) { | |||
| 7643 | *done = false; | |||
| 7644 | ||||
| 7645 | TokenKind tt; | |||
| 7646 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsInvalid)) { | |||
| 7647 | return false; | |||
| 7648 | } | |||
| 7649 | if (tt == TokenKind::RightCurly) { | |||
| 7650 | *done = true; | |||
| 7651 | return true; | |||
| 7652 | } | |||
| 7653 | ||||
| 7654 | if (tt == TokenKind::Semi) { | |||
| 7655 | return true; | |||
| 7656 | } | |||
| 7657 | ||||
| 7658 | #ifdef ENABLE_DECORATORS | |||
| 7659 | ListNodeType decorators = null(); | |||
| 7660 | if (tt == TokenKind::At) { | |||
| 7661 | MOZ_TRY_VAR_OR_RETURN(decorators, decoratorList(yieldHandling), false)do { auto parserTryVarTempResult_ = (decoratorList(yieldHandling )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (decorators) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 7662 | ||||
| 7663 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsInvalid)) { | |||
| 7664 | return false; | |||
| 7665 | } | |||
| 7666 | } | |||
| 7667 | #endif | |||
| 7668 | ||||
| 7669 | bool isStatic = false; | |||
| 7670 | if (tt == TokenKind::Static) { | |||
| 7671 | if (!tokenStream.peekToken(&tt)) { | |||
| 7672 | return false; | |||
| 7673 | } | |||
| 7674 | ||||
| 7675 | if (tt == TokenKind::LeftCurly) { | |||
| 7676 | /* Parsing static class block: static { ... } */ | |||
| 7677 | FunctionNodeType staticBlockBody; | |||
| 7678 | MOZ_TRY_VAR_OR_RETURN(staticBlockBody,do { auto parserTryVarTempResult_ = (staticClassBlock(classInitializedMembers )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (staticBlockBody) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7679 | staticClassBlock(classInitializedMembers), false)do { auto parserTryVarTempResult_ = (staticClassBlock(classInitializedMembers )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (staticBlockBody) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 7680 | ||||
| 7681 | StaticClassBlockType classBlock; | |||
| 7682 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newStaticClassBlock (staticBlockBody)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (classBlock) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7683 | classBlock, handler_.newStaticClassBlock(staticBlockBody), false)do { auto parserTryVarTempResult_ = (handler_.newStaticClassBlock (staticBlockBody)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (classBlock) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 7684 | ||||
| 7685 | return handler_.addClassMemberDefinition(classMembers, classBlock); | |||
| 7686 | } | |||
| 7687 | ||||
| 7688 | if (tt != TokenKind::LeftParen && tt != TokenKind::Assign && | |||
| 7689 | tt != TokenKind::Semi && tt != TokenKind::RightCurly) { | |||
| 7690 | isStatic = true; | |||
| 7691 | } else { | |||
| 7692 | anyChars.ungetToken(); | |||
| 7693 | } | |||
| 7694 | } else { | |||
| 7695 | anyChars.ungetToken(); | |||
| 7696 | } | |||
| 7697 | ||||
| 7698 | uint32_t propNameOffset; | |||
| 7699 | if (!tokenStream.peekOffset(&propNameOffset, TokenStream::SlashIsInvalid)) { | |||
| 7700 | return false; | |||
| 7701 | } | |||
| 7702 | ||||
| 7703 | TaggedParserAtomIndex propAtom; | |||
| 7704 | PropertyType propType; | |||
| 7705 | Node propName; | |||
| 7706 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInClass, Nothing(), classMembers, &propType , &propAtom)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7707 | propName,do { auto parserTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInClass, Nothing(), classMembers, &propType , &propAtom)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7708 | propertyOrMethodName(yieldHandling, PropertyNameInClass,do { auto parserTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInClass, Nothing(), classMembers, &propType , &propAtom)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7709 | /* maybeDecl = */ Nothing(), classMembers, &propType,do { auto parserTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInClass, Nothing(), classMembers, &propType , &propAtom)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7710 | &propAtom),do { auto parserTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInClass, Nothing(), classMembers, &propType , &propAtom)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7711 | false)do { auto parserTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInClass, Nothing(), classMembers, &propType , &propAtom)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 7712 | ||||
| 7713 | if (propType == PropertyType::Field || | |||
| 7714 | propType == PropertyType::FieldWithAccessor) { | |||
| 7715 | if (isStatic) { | |||
| 7716 | if (propAtom == TaggedParserAtomIndex::WellKnown::prototype()) { | |||
| 7717 | errorAt(propNameOffset, JSMSG_CLASS_STATIC_PROTO); | |||
| 7718 | return false; | |||
| 7719 | } | |||
| 7720 | } | |||
| 7721 | ||||
| 7722 | if (propAtom == TaggedParserAtomIndex::WellKnown::constructor()) { | |||
| 7723 | errorAt(propNameOffset, JSMSG_BAD_CONSTRUCTOR_DEF); | |||
| 7724 | return false; | |||
| 7725 | } | |||
| 7726 | ||||
| 7727 | if (handler_.isPrivateName(propName)) { | |||
| 7728 | if (propAtom == TaggedParserAtomIndex::WellKnown::hash_constructor_()) { | |||
| 7729 | errorAt(propNameOffset, JSMSG_BAD_CONSTRUCTOR_DEF); | |||
| 7730 | return false; | |||
| 7731 | } | |||
| 7732 | ||||
| 7733 | auto privateName = propAtom; | |||
| 7734 | if (!noteDeclaredPrivateName( | |||
| 7735 | propName, privateName, propType, | |||
| 7736 | isStatic ? FieldPlacement::Static : FieldPlacement::Instance, | |||
| 7737 | pos())) { | |||
| 7738 | return false; | |||
| 7739 | } | |||
| 7740 | } | |||
| 7741 | ||||
| 7742 | #ifdef ENABLE_DECORATORS | |||
| 7743 | ClassMethodType accessorGetterNode = null(); | |||
| 7744 | ClassMethodType accessorSetterNode = null(); | |||
| 7745 | if (propType == PropertyType::FieldWithAccessor) { | |||
| 7746 | // Decorators Proposal | |||
| 7747 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-runtime-semantics-classfielddefinitionevaluation | |||
| 7748 | // | |||
| 7749 | // FieldDefinition : accessor ClassElementName Initializeropt | |||
| 7750 | // | |||
| 7751 | // Step 1. Let name be the result of evaluating ClassElementName. | |||
| 7752 | // ... | |||
| 7753 | // Step 3. Let privateStateDesc be the string-concatenation of name | |||
| 7754 | // and " accessor storage". | |||
| 7755 | StringBuffer privateStateDesc(fc_); | |||
| 7756 | if (!privateStateDesc.append(this->parserAtoms(), propAtom)) { | |||
| 7757 | return false; | |||
| 7758 | } | |||
| 7759 | if (!privateStateDesc.append(" accessor storage")) { | |||
| 7760 | return false; | |||
| 7761 | } | |||
| 7762 | // Step 4. Let privateStateName be a new Private Name whose | |||
| 7763 | // [[Description]] value is privateStateDesc. | |||
| 7764 | TokenPos propNamePos(propNameOffset, pos().end); | |||
| 7765 | auto privateStateName = | |||
| 7766 | privateStateDesc.finishParserAtom(this->parserAtoms(), fc_); | |||
| 7767 | if (!noteDeclaredPrivateName( | |||
| 7768 | propName, privateStateName, propType, | |||
| 7769 | isStatic ? FieldPlacement::Static : FieldPlacement::Instance, | |||
| 7770 | propNamePos)) { | |||
| 7771 | return false; | |||
| 7772 | } | |||
| 7773 | ||||
| 7774 | // Step 5. Let getter be MakeAutoAccessorGetter(homeObject, name, | |||
| 7775 | // privateStateName). | |||
| 7776 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Getter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorGetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7777 | accessorGetterNode,do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Getter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorGetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7778 | synthesizeAccessor(propName, propNamePos, propAtom, privateStateName,do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Getter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorGetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7779 | isStatic, FunctionSyntaxKind::Getter,do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Getter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorGetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7780 | classInitializedMembers),do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Getter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorGetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7781 | false)do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Getter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorGetterNode) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 7782 | ||||
| 7783 | // If the accessor is not decorated or is a non-static private field, | |||
| 7784 | // add it to the class here. Otherwise, we'll handle this when the | |||
| 7785 | // decorators are called. We don't need to keep a reference to the node | |||
| 7786 | // after this except for non-static private accessors. Please see the | |||
| 7787 | // comment in the definition of ClassField for details. | |||
| 7788 | bool addAccessorImmediately = | |||
| 7789 | !decorators || (!isStatic && handler_.isPrivateName(propName)); | |||
| 7790 | if (addAccessorImmediately) { | |||
| 7791 | if (!handler_.addClassMemberDefinition(classMembers, | |||
| 7792 | accessorGetterNode)) { | |||
| 7793 | return false; | |||
| 7794 | } | |||
| 7795 | if (!handler_.isPrivateName(propName)) { | |||
| 7796 | accessorGetterNode = null(); | |||
| 7797 | } | |||
| 7798 | } | |||
| 7799 | ||||
| 7800 | // Step 6. Let setter be MakeAutoAccessorSetter(homeObject, name, | |||
| 7801 | // privateStateName). | |||
| 7802 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Setter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorSetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7803 | accessorSetterNode,do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Setter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorSetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7804 | synthesizeAccessor(propName, propNamePos, propAtom, privateStateName,do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Setter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorSetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7805 | isStatic, FunctionSyntaxKind::Setter,do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Setter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorSetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7806 | classInitializedMembers),do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Setter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorSetterNode) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7807 | false)do { auto parserTryVarTempResult_ = (synthesizeAccessor(propName , propNamePos, propAtom, privateStateName, isStatic, FunctionSyntaxKind ::Setter, classInitializedMembers)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( accessorSetterNode) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 7808 | ||||
| 7809 | if (addAccessorImmediately) { | |||
| 7810 | if (!handler_.addClassMemberDefinition(classMembers, | |||
| 7811 | accessorSetterNode)) { | |||
| 7812 | return false; | |||
| 7813 | } | |||
| 7814 | if (!handler_.isPrivateName(propName)) { | |||
| 7815 | accessorSetterNode = null(); | |||
| 7816 | } | |||
| 7817 | } | |||
| 7818 | ||||
| 7819 | // Step 10. Return ClassElementDefinition Record { [[Key]]: name, | |||
| 7820 | // [[Kind]]: accessor, [[Get]]: getter, [[Set]]: setter, | |||
| 7821 | // [[BackingStorageKey]]: privateStateName, [[Initializers]]: | |||
| 7822 | // initializers, [[Decorators]]: empty }. | |||
| 7823 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newPrivateName( privateStateName, pos())); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7824 | propName, handler_.newPrivateName(privateStateName, pos()), false)do { auto parserTryVarTempResult_ = (handler_.newPrivateName( privateStateName, pos())); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (propName) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 7825 | propAtom = privateStateName; | |||
| 7826 | // We maintain `decorators` here to perform this step at the same time: | |||
| 7827 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-static-semantics-classelementevaluation | |||
| 7828 | // 4. Set fieldDefinition.[[Decorators]] to decorators. | |||
| 7829 | } | |||
| 7830 | #endif | |||
| 7831 | if (isStatic) { | |||
| 7832 | classInitializedMembers.staticFields++; | |||
| 7833 | } else { | |||
| 7834 | classInitializedMembers.instanceFields++; | |||
| 7835 | #ifdef ENABLE_DECORATORS | |||
| 7836 | if (decorators) { | |||
| 7837 | classInitializedMembers.hasInstanceDecorators = true; | |||
| 7838 | } | |||
| 7839 | #endif | |||
| 7840 | } | |||
| 7841 | ||||
| 7842 | TokenPos propNamePos(propNameOffset, pos().end); | |||
| 7843 | FunctionNodeType initializer; | |||
| 7844 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (fieldInitializerOpt(propNamePos , propName, propAtom, classInitializedMembers, isStatic, hasHeritage )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (initializer) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7845 | initializer,do { auto parserTryVarTempResult_ = (fieldInitializerOpt(propNamePos , propName, propAtom, classInitializedMembers, isStatic, hasHeritage )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (initializer) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7846 | fieldInitializerOpt(propNamePos, propName, propAtom,do { auto parserTryVarTempResult_ = (fieldInitializerOpt(propNamePos , propName, propAtom, classInitializedMembers, isStatic, hasHeritage )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (initializer) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7847 | classInitializedMembers, isStatic, hasHeritage),do { auto parserTryVarTempResult_ = (fieldInitializerOpt(propNamePos , propName, propAtom, classInitializedMembers, isStatic, hasHeritage )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (initializer) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7848 | false)do { auto parserTryVarTempResult_ = (fieldInitializerOpt(propNamePos , propName, propAtom, classInitializedMembers, isStatic, hasHeritage )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (initializer) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 7849 | ||||
| 7850 | if (!matchOrInsertSemicolon(TokenStream::SlashIsInvalid)) { | |||
| 7851 | return false; | |||
| 7852 | } | |||
| 7853 | ||||
| 7854 | ClassFieldType field; | |||
| 7855 | MOZ_TRY_VAR_OR_RETURN(field,do { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7856 | handler_.newClassFieldDefinition(do { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7857 | propName, initializer, isStaticdo { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7858 | #ifdef ENABLE_DECORATORSdo { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7859 | ,do { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7860 | decorators, accessorGetterNode, accessorSetterNodedo { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7861 | #endifdo { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7862 | ),do { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 7863 | false)do { auto parserTryVarTempResult_ = (handler_.newClassFieldDefinition ( propName, initializer, isStatic ifdef ENABLE_DECORATORS , decorators , accessorGetterNode, accessorSetterNode endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (field) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 7864 | ||||
| 7865 | return handler_.addClassMemberDefinition(classMembers, field); | |||
| 7866 | } | |||
| 7867 | ||||
| 7868 | if (propType != PropertyType::Getter && propType != PropertyType::Setter && | |||
| 7869 | propType != PropertyType::Method && | |||
| 7870 | propType != PropertyType::GeneratorMethod && | |||
| 7871 | propType != PropertyType::AsyncMethod && | |||
| 7872 | propType != PropertyType::AsyncGeneratorMethod) { | |||
| 7873 | errorAt(propNameOffset, JSMSG_BAD_CLASS_MEMBER_DEF); | |||
| 7874 | return false; | |||
| 7875 | } | |||
| 7876 | ||||
| 7877 | bool isConstructor = | |||
| 7878 | !isStatic && propAtom == TaggedParserAtomIndex::WellKnown::constructor(); | |||
| 7879 | if (isConstructor) { | |||
| 7880 | if (propType != PropertyType::Method) { | |||
| 7881 | errorAt(propNameOffset, JSMSG_BAD_CONSTRUCTOR_DEF); | |||
| 7882 | return false; | |||
| 7883 | } | |||
| 7884 | if (classStmt.constructorBox) { | |||
| 7885 | errorAt(propNameOffset, JSMSG_DUPLICATE_CONSTRUCTOR); | |||
| 7886 | return false; | |||
| 7887 | } | |||
| 7888 | propType = hasHeritage == HasHeritage::Yes | |||
| 7889 | ? PropertyType::DerivedConstructor | |||
| 7890 | : PropertyType::Constructor; | |||
| 7891 | } else if (isStatic && | |||
| 7892 | propAtom == TaggedParserAtomIndex::WellKnown::prototype()) { | |||
| 7893 | errorAt(propNameOffset, JSMSG_CLASS_STATIC_PROTO); | |||
| 7894 | return false; | |||
| 7895 | } | |||
| 7896 | ||||
| 7897 | TaggedParserAtomIndex funName; | |||
| 7898 | switch (propType) { | |||
| 7899 | case PropertyType::Getter: | |||
| 7900 | case PropertyType::Setter: { | |||
| 7901 | bool hasStaticName = | |||
| 7902 | !anyChars.isCurrentTokenType(TokenKind::RightBracket) && propAtom; | |||
| 7903 | if (hasStaticName) { | |||
| 7904 | funName = prefixAccessorName(propType, propAtom); | |||
| 7905 | if (!funName) { | |||
| 7906 | return false; | |||
| 7907 | } | |||
| 7908 | } | |||
| 7909 | break; | |||
| 7910 | } | |||
| 7911 | case PropertyType::Constructor: | |||
| 7912 | case PropertyType::DerivedConstructor: | |||
| 7913 | funName = className; | |||
| 7914 | break; | |||
| 7915 | default: | |||
| 7916 | if (!anyChars.isCurrentTokenType(TokenKind::RightBracket)) { | |||
| 7917 | funName = propAtom; | |||
| 7918 | } | |||
| 7919 | } | |||
| 7920 | ||||
| 7921 | // When |super()| is invoked, we search for the nearest scope containing | |||
| 7922 | // |.initializers| to initialize the class fields. This set-up precludes | |||
| 7923 | // declaring |.initializers| in the class scope, because in some syntactic | |||
| 7924 | // contexts |super()| can appear nested in a class, while actually belonging | |||
| 7925 | // to an outer class definition. | |||
| 7926 | // | |||
| 7927 | // Example: | |||
| 7928 | // class Outer extends Base { | |||
| 7929 | // field = 1; | |||
| 7930 | // constructor() { | |||
| 7931 | // class Inner { | |||
| 7932 | // field = 2; | |||
| 7933 | // | |||
| 7934 | // // The super() call in the computed property name mustn't access | |||
| 7935 | // // Inner's |.initializers| array, but instead Outer's. | |||
| 7936 | // [super()]() {} | |||
| 7937 | // } | |||
| 7938 | // } | |||
| 7939 | // } | |||
| 7940 | Maybe<ParseContext::Scope> dotInitializersScope; | |||
| 7941 | if (isConstructor && !options().selfHostingMode) { | |||
| 7942 | dotInitializersScope.emplace(this); | |||
| 7943 | if (!dotInitializersScope->init(pc_)) { | |||
| 7944 | return false; | |||
| 7945 | } | |||
| 7946 | ||||
| 7947 | if (!noteDeclaredName(TaggedParserAtomIndex::WellKnown::dot_initializers_(), | |||
| 7948 | DeclarationKind::Let, pos())) { | |||
| 7949 | return false; | |||
| 7950 | } | |||
| 7951 | ||||
| 7952 | #ifdef ENABLE_DECORATORS | |||
| 7953 | if (!noteDeclaredName( | |||
| 7954 | TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_(), | |||
| 7955 | DeclarationKind::Let, pos())) { | |||
| 7956 | return false; | |||
| 7957 | } | |||
| 7958 | #endif | |||
| 7959 | } | |||
| 7960 | ||||
| 7961 | // Calling toString on constructors need to return the source text for | |||
| 7962 | // the entire class. The end offset is unknown at this point in | |||
| 7963 | // parsing and will be amended when class parsing finishes below. | |||
| 7964 | FunctionNodeType funNode; | |||
| 7965 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (methodDefinition(isConstructor ? classStartOffset : propNameOffset, propType, funName)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (funNode) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 7966 | funNode,do { auto parserTryVarTempResult_ = (methodDefinition(isConstructor ? classStartOffset : propNameOffset, propType, funName)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (funNode) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 7967 | methodDefinition(isConstructor ? classStartOffset : propNameOffset,do { auto parserTryVarTempResult_ = (methodDefinition(isConstructor ? classStartOffset : propNameOffset, propType, funName)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (funNode) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 7968 | propType, funName),do { auto parserTryVarTempResult_ = (methodDefinition(isConstructor ? classStartOffset : propNameOffset, propType, funName)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (funNode) = parserTryVarTempResult_.unwrap (); } while (0) | |||
| 7969 | false)do { auto parserTryVarTempResult_ = (methodDefinition(isConstructor ? classStartOffset : propNameOffset, propType, funName)); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (funNode) = parserTryVarTempResult_.unwrap (); } while (0); | |||
| 7970 | ||||
| 7971 | AccessorType atype = ToAccessorType(propType); | |||
| 7972 | ||||
| 7973 | Maybe<FunctionNodeType> initializerIfPrivate = Nothing(); | |||
| 7974 | if (handler_.isPrivateName(propName)) { | |||
| 7975 | if (propAtom == TaggedParserAtomIndex::WellKnown::hash_constructor_()) { | |||
| 7976 | // #constructor is an invalid private name. | |||
| 7977 | errorAt(propNameOffset, JSMSG_BAD_CONSTRUCTOR_DEF); | |||
| 7978 | return false; | |||
| 7979 | } | |||
| 7980 | ||||
| 7981 | TaggedParserAtomIndex privateName = propAtom; | |||
| 7982 | if (!noteDeclaredPrivateName( | |||
| 7983 | propName, privateName, propType, | |||
| 7984 | isStatic ? FieldPlacement::Static : FieldPlacement::Instance, | |||
| 7985 | pos())) { | |||
| 7986 | return false; | |||
| 7987 | } | |||
| 7988 | ||||
| 7989 | // Private non-static methods are stored in the class body environment. | |||
| 7990 | // Private non-static accessors are stamped onto every instance using | |||
| 7991 | // initializers. Private static methods are stamped onto the constructor | |||
| 7992 | // during class evaluation; see BytecodeEmitter::emitPropertyList. | |||
| 7993 | if (!isStatic) { | |||
| 7994 | if (atype == AccessorType::Getter || atype == AccessorType::Setter) { | |||
| 7995 | classInitializedMembers.privateAccessors++; | |||
| 7996 | TokenPos propNamePos(propNameOffset, pos().end); | |||
| 7997 | FunctionNodeType initializerNode; | |||
| 7998 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (synthesizePrivateMethodInitializer (propAtom, atype, propNamePos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (initializerNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 7999 | initializerNode,do { auto parserTryVarTempResult_ = (synthesizePrivateMethodInitializer (propAtom, atype, propNamePos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (initializerNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8000 | synthesizePrivateMethodInitializer(propAtom, atype, propNamePos),do { auto parserTryVarTempResult_ = (synthesizePrivateMethodInitializer (propAtom, atype, propNamePos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (initializerNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8001 | false)do { auto parserTryVarTempResult_ = (synthesizePrivateMethodInitializer (propAtom, atype, propNamePos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (initializerNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8002 | initializerIfPrivate = Some(initializerNode); | |||
| 8003 | } else { | |||
| 8004 | MOZ_ASSERT(atype == AccessorType::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(atype == AccessorType::None)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(atype == AccessorType::None) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("atype == AccessorType::None" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8004); AnnotateMozCrashReason("MOZ_ASSERT" "(" "atype == AccessorType::None" ")"); do { *((volatile int*)__null) = 8004; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8005 | classInitializedMembers.privateMethods++; | |||
| 8006 | } | |||
| 8007 | } | |||
| 8008 | } | |||
| 8009 | ||||
| 8010 | #ifdef ENABLE_DECORATORS | |||
| 8011 | if (decorators) { | |||
| 8012 | classInitializedMembers.hasInstanceDecorators = true; | |||
| 8013 | } | |||
| 8014 | #endif | |||
| 8015 | ||||
| 8016 | Node method; | |||
| 8017 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8018 | method,do { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8019 | handler_.newClassMethodDefinition(propName, funNode, atype, isStatic,do { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8020 | initializerIfPrivatedo { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8021 | #ifdef ENABLE_DECORATORSdo { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8022 | ,do { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8023 | decoratorsdo { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8024 | #endifdo { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8025 | ),do { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8026 | false)do { auto parserTryVarTempResult_ = (handler_.newClassMethodDefinition (propName, funNode, atype, isStatic, initializerIfPrivate ifdef ENABLE_DECORATORS , decorators endif )); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 8027 | ||||
| 8028 | if (dotInitializersScope.isSome()) { | |||
| 8029 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (finishLexicalScope(*dotInitializersScope , method)); if ((__builtin_expect(!!(parserTryVarTempResult_. isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8030 | method, finishLexicalScope(*dotInitializersScope, method), false)do { auto parserTryVarTempResult_ = (finishLexicalScope(*dotInitializersScope , method)); if ((__builtin_expect(!!(parserTryVarTempResult_. isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8031 | dotInitializersScope.reset(); | |||
| 8032 | } | |||
| 8033 | ||||
| 8034 | return handler_.addClassMemberDefinition(classMembers, method); | |||
| 8035 | } | |||
| 8036 | ||||
| 8037 | template <class ParseHandler, typename Unit> | |||
| 8038 | bool GeneralParser<ParseHandler, Unit>::finishClassConstructor( | |||
| 8039 | const ParseContext::ClassStatement& classStmt, | |||
| 8040 | TaggedParserAtomIndex className, HasHeritage hasHeritage, | |||
| 8041 | uint32_t classStartOffset, uint32_t classEndOffset, | |||
| 8042 | const ClassInitializedMembers& classInitializedMembers, | |||
| 8043 | ListNodeType& classMembers) { | |||
| 8044 | if (classStmt.constructorBox == nullptr) { | |||
| 8045 | MOZ_ASSERT(!options().selfHostingMode)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!options().selfHostingMode)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!options().selfHostingMode)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!options().selfHostingMode" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8045); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!options().selfHostingMode" ")"); do { *((volatile int*)__null) = 8045; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8046 | // Unconditionally create the scope here, because it's always the | |||
| 8047 | // constructor. | |||
| 8048 | ParseContext::Scope dotInitializersScope(this); | |||
| 8049 | if (!dotInitializersScope.init(pc_)) { | |||
| 8050 | return false; | |||
| 8051 | } | |||
| 8052 | ||||
| 8053 | if (!noteDeclaredName(TaggedParserAtomIndex::WellKnown::dot_initializers_(), | |||
| 8054 | DeclarationKind::Let, pos())) { | |||
| 8055 | return false; | |||
| 8056 | } | |||
| 8057 | ||||
| 8058 | #ifdef ENABLE_DECORATORS | |||
| 8059 | if (!noteDeclaredName( | |||
| 8060 | TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_(), | |||
| 8061 | DeclarationKind::Let, pos(), ClosedOver::Yes)) { | |||
| 8062 | return false; | |||
| 8063 | } | |||
| 8064 | #endif | |||
| 8065 | ||||
| 8066 | // synthesizeConstructor assigns to classStmt.constructorBox | |||
| 8067 | TokenPos synthesizedBodyPos(classStartOffset, classEndOffset); | |||
| 8068 | FunctionNodeType synthesizedCtor; | |||
| 8069 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (synthesizeConstructor(className , synthesizedBodyPos, hasHeritage)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( synthesizedCtor) = parserTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8070 | synthesizedCtor,do { auto parserTryVarTempResult_ = (synthesizeConstructor(className , synthesizedBodyPos, hasHeritage)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( synthesizedCtor) = parserTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8071 | synthesizeConstructor(className, synthesizedBodyPos, hasHeritage),do { auto parserTryVarTempResult_ = (synthesizeConstructor(className , synthesizedBodyPos, hasHeritage)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( synthesizedCtor) = parserTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8072 | false)do { auto parserTryVarTempResult_ = (synthesizeConstructor(className , synthesizedBodyPos, hasHeritage)); if ((__builtin_expect(!! (parserTryVarTempResult_.isErr()), 0))) { return (false); } ( synthesizedCtor) = parserTryVarTempResult_.unwrap(); } while ( 0); | |||
| 8073 | ||||
| 8074 | // Note: the *function* has the name of the class, but the *property* | |||
| 8075 | // containing the function has the name "constructor" | |||
| 8076 | Node constructorNameNode; | |||
| 8077 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newObjectLiteralPropertyName ( TaggedParserAtomIndex::WellKnown::constructor(), pos())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (constructorNameNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8078 | constructorNameNode,do { auto parserTryVarTempResult_ = (handler_.newObjectLiteralPropertyName ( TaggedParserAtomIndex::WellKnown::constructor(), pos())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (constructorNameNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8079 | handler_.newObjectLiteralPropertyName(do { auto parserTryVarTempResult_ = (handler_.newObjectLiteralPropertyName ( TaggedParserAtomIndex::WellKnown::constructor(), pos())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (constructorNameNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8080 | TaggedParserAtomIndex::WellKnown::constructor(), pos()),do { auto parserTryVarTempResult_ = (handler_.newObjectLiteralPropertyName ( TaggedParserAtomIndex::WellKnown::constructor(), pos())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (constructorNameNode) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8081 | false)do { auto parserTryVarTempResult_ = (handler_.newObjectLiteralPropertyName ( TaggedParserAtomIndex::WellKnown::constructor(), pos())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (constructorNameNode) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8082 | ClassMethodType method; | |||
| 8083 | MOZ_TRY_VAR_OR_RETURN(method,do { auto parserTryVarTempResult_ = (handler_.newDefaultClassConstructor ( constructorNameNode, synthesizedCtor)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8084 | handler_.newDefaultClassConstructor(do { auto parserTryVarTempResult_ = (handler_.newDefaultClassConstructor ( constructorNameNode, synthesizedCtor)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8085 | constructorNameNode, synthesizedCtor),do { auto parserTryVarTempResult_ = (handler_.newDefaultClassConstructor ( constructorNameNode, synthesizedCtor)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8086 | false)do { auto parserTryVarTempResult_ = (handler_.newDefaultClassConstructor ( constructorNameNode, synthesizedCtor)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (method) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 8087 | LexicalScopeNodeType scope; | |||
| 8088 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (finishLexicalScope(dotInitializersScope , method)); if ((__builtin_expect(!!(parserTryVarTempResult_. isErr()), 0))) { return (false); } (scope) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8089 | scope, finishLexicalScope(dotInitializersScope, method), false)do { auto parserTryVarTempResult_ = (finishLexicalScope(dotInitializersScope , method)); if ((__builtin_expect(!!(parserTryVarTempResult_. isErr()), 0))) { return (false); } (scope) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8090 | if (!handler_.addClassMemberDefinition(classMembers, scope)) { | |||
| 8091 | return false; | |||
| 8092 | } | |||
| 8093 | } | |||
| 8094 | ||||
| 8095 | MOZ_ASSERT(classStmt.constructorBox)do { static_assert( mozilla::detail::AssertionConditionType< decltype(classStmt.constructorBox)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(classStmt.constructorBox))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("classStmt.constructorBox" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8095); AnnotateMozCrashReason("MOZ_ASSERT" "(" "classStmt.constructorBox" ")"); do { *((volatile int*)__null) = 8095; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8096 | FunctionBox* ctorbox = classStmt.constructorBox; | |||
| 8097 | ||||
| 8098 | // Amend the toStringEnd offset for the constructor now that we've | |||
| 8099 | // finished parsing the class. | |||
| 8100 | ctorbox->setCtorToStringEnd(classEndOffset); | |||
| 8101 | ||||
| 8102 | size_t numMemberInitializers = classInitializedMembers.privateAccessors + | |||
| 8103 | classInitializedMembers.instanceFields; | |||
| 8104 | bool hasPrivateBrand = classInitializedMembers.hasPrivateBrand(); | |||
| 8105 | if (hasPrivateBrand || numMemberInitializers > 0) { | |||
| 8106 | // Now that we have full set of initializers, update the constructor. | |||
| 8107 | MemberInitializers initializers( | |||
| 8108 | hasPrivateBrand, | |||
| 8109 | #ifdef ENABLE_DECORATORS | |||
| 8110 | classInitializedMembers.hasInstanceDecorators, | |||
| 8111 | #endif | |||
| 8112 | numMemberInitializers); | |||
| 8113 | ctorbox->setMemberInitializers(initializers); | |||
| 8114 | ||||
| 8115 | // Field initialization need access to `this`. | |||
| 8116 | ctorbox->setCtorFunctionHasThisBinding(); | |||
| 8117 | } | |||
| 8118 | ||||
| 8119 | return true; | |||
| 8120 | } | |||
| 8121 | ||||
| 8122 | template <class ParseHandler, typename Unit> | |||
| 8123 | typename ParseHandler::ClassNodeResult | |||
| 8124 | GeneralParser<ParseHandler, Unit>::classDefinition( | |||
| 8125 | YieldHandling yieldHandling, ClassContext classContext, | |||
| 8126 | DefaultHandling defaultHandling) { | |||
| 8127 | #ifdef ENABLE_DECORATORS | |||
| 8128 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::At) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::At) || anyChars .isCurrentTokenType(TokenKind::Class))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::At) || anyChars.isCurrentTokenType(TokenKind::Class )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::At) || anyChars.isCurrentTokenType(TokenKind::Class)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8129); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::At) || anyChars.isCurrentTokenType(TokenKind::Class)" ")"); do { *((volatile int*)__null) = 8129; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 8129 | anyChars.isCurrentTokenType(TokenKind::Class))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::At) || anyChars .isCurrentTokenType(TokenKind::Class))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::At) || anyChars.isCurrentTokenType(TokenKind::Class )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::At) || anyChars.isCurrentTokenType(TokenKind::Class)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8129); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::At) || anyChars.isCurrentTokenType(TokenKind::Class)" ")"); do { *((volatile int*)__null) = 8129; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8130 | ||||
| 8131 | ListNodeType decorators = null(); | |||
| 8132 | FunctionNodeType addInitializerFunction = null(); | |||
| 8133 | if (anyChars.isCurrentTokenType(TokenKind::At)) { | |||
| 8134 | MOZ_TRY_VAR(decorators, decoratorList(yieldHandling))do { auto mozTryVarTempResult_ = (decoratorList(yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (decorators ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8135 | TokenKind next; | |||
| 8136 | if (!tokenStream.getToken(&next)) { | |||
| 8137 | return errorResult(); | |||
| 8138 | } | |||
| 8139 | if (next != TokenKind::Class) { | |||
| 8140 | error(JSMSG_CLASS_EXPECTED); | |||
| 8141 | return errorResult(); | |||
| 8142 | } | |||
| 8143 | } | |||
| 8144 | #else | |||
| 8145 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Class))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Class))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Class)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Class)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8145); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Class)" ")"); do { *((volatile int*)__null) = 8145; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8146 | #endif | |||
| 8147 | ||||
| 8148 | uint32_t classStartOffset = pos().begin; | |||
| 8149 | bool savedStrictness = setLocalStrictMode(true); | |||
| 8150 | ||||
| 8151 | // Classes are quite broken in self-hosted code. | |||
| 8152 | if (options().selfHostingMode) { | |||
| 8153 | error(JSMSG_SELFHOSTED_CLASS); | |||
| 8154 | return errorResult(); | |||
| 8155 | } | |||
| 8156 | ||||
| 8157 | TokenKind tt; | |||
| 8158 | if (!tokenStream.getToken(&tt)) { | |||
| 8159 | return errorResult(); | |||
| 8160 | } | |||
| 8161 | ||||
| 8162 | TaggedParserAtomIndex className; | |||
| 8163 | if (TokenKindIsPossibleIdentifier(tt)) { | |||
| 8164 | className = bindingIdentifier(yieldHandling); | |||
| 8165 | if (!className) { | |||
| 8166 | return errorResult(); | |||
| 8167 | } | |||
| 8168 | } else if (classContext == ClassStatement) { | |||
| 8169 | if (defaultHandling == AllowDefaultName) { | |||
| 8170 | className = TaggedParserAtomIndex::WellKnown::default_(); | |||
| 8171 | anyChars.ungetToken(); | |||
| 8172 | } else { | |||
| 8173 | // Class statements must have a bound name | |||
| 8174 | error(JSMSG_UNNAMED_CLASS_STMT); | |||
| 8175 | return errorResult(); | |||
| 8176 | } | |||
| 8177 | } else { | |||
| 8178 | // Make sure to put it back, whatever it was | |||
| 8179 | anyChars.ungetToken(); | |||
| 8180 | } | |||
| 8181 | ||||
| 8182 | // Because the binding definitions keep track of their blockId, we need to | |||
| 8183 | // create at least the inner binding later. Keep track of the name's | |||
| 8184 | // position in order to provide it for the nodes created later. | |||
| 8185 | TokenPos namePos = pos(); | |||
| 8186 | ||||
| 8187 | auto isClass = [](ParseContext::Statement* stmt) { | |||
| 8188 | return stmt->kind() == StatementKind::Class; | |||
| 8189 | }; | |||
| 8190 | ||||
| 8191 | bool isInClass = pc_->sc()->inClass() || pc_->findInnermostStatement(isClass); | |||
| 8192 | ||||
| 8193 | // Push a ParseContext::ClassStatement to keep track of the constructor | |||
| 8194 | // funbox. | |||
| 8195 | ParseContext::ClassStatement classStmt(pc_); | |||
| 8196 | ||||
| 8197 | NameNodeType innerName; | |||
| 8198 | Node nameNode = null(); | |||
| 8199 | Node classHeritage = null(); | |||
| 8200 | LexicalScopeNodeType classBlock = null(); | |||
| 8201 | ClassBodyScopeNodeType classBodyBlock = null(); | |||
| 8202 | uint32_t classEndOffset; | |||
| 8203 | { | |||
| 8204 | // A named class creates a new lexical scope with a const binding of the | |||
| 8205 | // class name for the "inner name". | |||
| 8206 | ParseContext::Statement innerScopeStmt(pc_, StatementKind::Block); | |||
| 8207 | ParseContext::Scope innerScope(this); | |||
| 8208 | if (!innerScope.init(pc_)) { | |||
| 8209 | return errorResult(); | |||
| 8210 | } | |||
| 8211 | ||||
| 8212 | bool hasHeritageBool; | |||
| 8213 | if (!tokenStream.matchToken(&hasHeritageBool, TokenKind::Extends)) { | |||
| 8214 | return errorResult(); | |||
| 8215 | } | |||
| 8216 | HasHeritage hasHeritage = | |||
| 8217 | hasHeritageBool ? HasHeritage::Yes : HasHeritage::No; | |||
| 8218 | if (hasHeritage == HasHeritage::Yes) { | |||
| 8219 | if (!tokenStream.getToken(&tt)) { | |||
| 8220 | return errorResult(); | |||
| 8221 | } | |||
| 8222 | MOZ_TRY_VAR(classHeritage,do { auto mozTryVarTempResult_ = (optionalExpr(yieldHandling, TripledotProhibited, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (classHeritage) = mozTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8223 | optionalExpr(yieldHandling, TripledotProhibited, tt))do { auto mozTryVarTempResult_ = (optionalExpr(yieldHandling, TripledotProhibited, tt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (classHeritage) = mozTryVarTempResult_.unwrap(); } while ( 0); | |||
| 8224 | } | |||
| 8225 | ||||
| 8226 | if (!mustMatchToken(TokenKind::LeftCurly, JSMSG_CURLY_BEFORE_CLASS)) { | |||
| 8227 | return errorResult(); | |||
| 8228 | } | |||
| 8229 | ||||
| 8230 | { | |||
| 8231 | ParseContext::Statement bodyScopeStmt(pc_, StatementKind::Block); | |||
| 8232 | ParseContext::Scope bodyScope(this); | |||
| 8233 | if (!bodyScope.init(pc_)) { | |||
| 8234 | return errorResult(); | |||
| 8235 | } | |||
| 8236 | ||||
| 8237 | ListNodeType classMembers; | |||
| 8238 | MOZ_TRY_VAR(classMembers, handler_.newClassMemberList(pos().begin))do { auto mozTryVarTempResult_ = (handler_.newClassMemberList (pos().begin)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (classMembers) = mozTryVarTempResult_.unwrap(); } while (0 ); | |||
| 8239 | ||||
| 8240 | ClassInitializedMembers classInitializedMembers{}; | |||
| 8241 | for (;;) { | |||
| 8242 | bool done; | |||
| 8243 | if (!classMember(yieldHandling, classStmt, className, classStartOffset, | |||
| 8244 | hasHeritage, classInitializedMembers, classMembers, | |||
| 8245 | &done)) { | |||
| 8246 | return errorResult(); | |||
| 8247 | } | |||
| 8248 | if (done) { | |||
| 8249 | break; | |||
| 8250 | } | |||
| 8251 | } | |||
| 8252 | #ifdef ENABLE_DECORATORS | |||
| 8253 | if (classInitializedMembers.hasInstanceDecorators) { | |||
| 8254 | MOZ_TRY_VAR(addInitializerFunction,do { auto mozTryVarTempResult_ = (synthesizeAddInitializerFunction ( TaggedParserAtomIndex::WellKnown:: dot_instanceExtraInitializers_ (), yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (addInitializerFunction) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8255 | synthesizeAddInitializerFunction(do { auto mozTryVarTempResult_ = (synthesizeAddInitializerFunction ( TaggedParserAtomIndex::WellKnown:: dot_instanceExtraInitializers_ (), yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (addInitializerFunction) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8256 | TaggedParserAtomIndex::WellKnown::do { auto mozTryVarTempResult_ = (synthesizeAddInitializerFunction ( TaggedParserAtomIndex::WellKnown:: dot_instanceExtraInitializers_ (), yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (addInitializerFunction) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8257 | dot_instanceExtraInitializers_(),do { auto mozTryVarTempResult_ = (synthesizeAddInitializerFunction ( TaggedParserAtomIndex::WellKnown:: dot_instanceExtraInitializers_ (), yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (addInitializerFunction) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8258 | yieldHandling))do { auto mozTryVarTempResult_ = (synthesizeAddInitializerFunction ( TaggedParserAtomIndex::WellKnown:: dot_instanceExtraInitializers_ (), yieldHandling)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (addInitializerFunction) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8259 | } | |||
| 8260 | #endif | |||
| 8261 | ||||
| 8262 | if (classInitializedMembers.privateMethods + | |||
| 8263 | classInitializedMembers.privateAccessors > | |||
| 8264 | 0) { | |||
| 8265 | // We declare `.privateBrand` as ClosedOver because the constructor | |||
| 8266 | // always uses it, even a default constructor. We could equivalently | |||
| 8267 | // `noteUsedName` when parsing the constructor, except that at that | |||
| 8268 | // time, we don't necessarily know if the class has a private brand. | |||
| 8269 | if (!noteDeclaredName( | |||
| 8270 | TaggedParserAtomIndex::WellKnown::dot_privateBrand_(), | |||
| 8271 | DeclarationKind::Synthetic, namePos, ClosedOver::Yes)) { | |||
| 8272 | return errorResult(); | |||
| 8273 | } | |||
| 8274 | } | |||
| 8275 | ||||
| 8276 | if (classInitializedMembers.instanceFieldKeys > 0) { | |||
| 8277 | if (!noteDeclaredName( | |||
| 8278 | TaggedParserAtomIndex::WellKnown::dot_fieldKeys_(), | |||
| 8279 | DeclarationKind::Synthetic, namePos)) { | |||
| 8280 | return errorResult(); | |||
| 8281 | } | |||
| 8282 | } | |||
| 8283 | ||||
| 8284 | if (classInitializedMembers.staticFields > 0) { | |||
| 8285 | if (!noteDeclaredName( | |||
| 8286 | TaggedParserAtomIndex::WellKnown::dot_staticInitializers_(), | |||
| 8287 | DeclarationKind::Synthetic, namePos)) { | |||
| 8288 | return errorResult(); | |||
| 8289 | } | |||
| 8290 | } | |||
| 8291 | ||||
| 8292 | if (classInitializedMembers.staticFieldKeys > 0) { | |||
| 8293 | if (!noteDeclaredName( | |||
| 8294 | TaggedParserAtomIndex::WellKnown::dot_staticFieldKeys_(), | |||
| 8295 | DeclarationKind::Synthetic, namePos)) { | |||
| 8296 | return errorResult(); | |||
| 8297 | } | |||
| 8298 | } | |||
| 8299 | ||||
| 8300 | classEndOffset = pos().end; | |||
| 8301 | if (!finishClassConstructor(classStmt, className, hasHeritage, | |||
| 8302 | classStartOffset, classEndOffset, | |||
| 8303 | classInitializedMembers, classMembers)) { | |||
| 8304 | return errorResult(); | |||
| 8305 | } | |||
| 8306 | ||||
| 8307 | MOZ_TRY_VAR(classBodyBlock,do { auto mozTryVarTempResult_ = (finishClassBodyScope(bodyScope , classMembers)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (classBodyBlock) = mozTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8308 | finishClassBodyScope(bodyScope, classMembers))do { auto mozTryVarTempResult_ = (finishClassBodyScope(bodyScope , classMembers)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (classBodyBlock) = mozTryVarTempResult_.unwrap(); } while ( 0); | |||
| 8309 | ||||
| 8310 | // Pop the class body scope | |||
| 8311 | } | |||
| 8312 | ||||
| 8313 | if (className) { | |||
| 8314 | // The inner name is immutable. | |||
| 8315 | if (!noteDeclaredName(className, DeclarationKind::Const, namePos)) { | |||
| 8316 | return errorResult(); | |||
| 8317 | } | |||
| 8318 | ||||
| 8319 | MOZ_TRY_VAR(innerName, newName(className, namePos))do { auto mozTryVarTempResult_ = (newName(className, namePos) ); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0) )) { return mozTryVarTempResult_.propagateErr(); } (innerName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8320 | } | |||
| 8321 | ||||
| 8322 | MOZ_TRY_VAR(classBlock, finishLexicalScope(innerScope, classBodyBlock))do { auto mozTryVarTempResult_ = (finishLexicalScope(innerScope , classBodyBlock)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (classBlock) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8323 | ||||
| 8324 | // Pop the inner scope. | |||
| 8325 | } | |||
| 8326 | ||||
| 8327 | if (className) { | |||
| 8328 | NameNodeType outerName = null(); | |||
| 8329 | if (classContext == ClassStatement) { | |||
| 8330 | // The outer name is mutable. | |||
| 8331 | if (!noteDeclaredName(className, DeclarationKind::Class, namePos)) { | |||
| 8332 | return errorResult(); | |||
| 8333 | } | |||
| 8334 | ||||
| 8335 | MOZ_TRY_VAR(outerName, newName(className, namePos))do { auto mozTryVarTempResult_ = (newName(className, namePos) ); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0) )) { return mozTryVarTempResult_.propagateErr(); } (outerName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8336 | } | |||
| 8337 | ||||
| 8338 | MOZ_TRY_VAR(nameNode,do { auto mozTryVarTempResult_ = (handler_.newClassNames(outerName , innerName, namePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nameNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8339 | handler_.newClassNames(outerName, innerName, namePos))do { auto mozTryVarTempResult_ = (handler_.newClassNames(outerName , innerName, namePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nameNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8340 | } | |||
| 8341 | MOZ_ALWAYS_TRUE(setLocalStrictMode(savedStrictness))do { if ((__builtin_expect(!!(setLocalStrictMode(savedStrictness )), 1))) { } else { do { static_assert( mozilla::detail::AssertionConditionType <decltype(false)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("false" " (" "setLocalStrictMode(savedStrictness)" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8341); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "setLocalStrictMode(savedStrictness)" ")"); do { *((volatile int*)__null) = 8341; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); } } while (false); | |||
| 8342 | // We're leaving a class definition that was not itself nested within a class | |||
| 8343 | if (!isInClass) { | |||
| 8344 | mozilla::Maybe<UnboundPrivateName> maybeUnboundName; | |||
| 8345 | if (!usedNames_.hasUnboundPrivateNames(fc_, maybeUnboundName)) { | |||
| 8346 | return errorResult(); | |||
| 8347 | } | |||
| 8348 | if (maybeUnboundName) { | |||
| 8349 | UniqueChars str = | |||
| 8350 | this->parserAtoms().toPrintableString(maybeUnboundName->atom); | |||
| 8351 | if (!str) { | |||
| 8352 | ReportOutOfMemory(this->fc_); | |||
| 8353 | return errorResult(); | |||
| 8354 | } | |||
| 8355 | ||||
| 8356 | errorAt(maybeUnboundName->position.begin, JSMSG_MISSING_PRIVATE_DECL, | |||
| 8357 | str.get()); | |||
| 8358 | return errorResult(); | |||
| 8359 | } | |||
| 8360 | } | |||
| 8361 | ||||
| 8362 | return handler_.newClass(nameNode, classHeritage, classBlock, | |||
| 8363 | #ifdef ENABLE_DECORATORS | |||
| 8364 | decorators, addInitializerFunction, | |||
| 8365 | #endif | |||
| 8366 | TokenPos(classStartOffset, classEndOffset)); | |||
| 8367 | } | |||
| 8368 | ||||
| 8369 | template <class ParseHandler, typename Unit> | |||
| 8370 | typename ParseHandler::FunctionNodeResult | |||
| 8371 | GeneralParser<ParseHandler, Unit>::synthesizeConstructor( | |||
| 8372 | TaggedParserAtomIndex className, TokenPos synthesizedBodyPos, | |||
| 8373 | HasHeritage hasHeritage) { | |||
| 8374 | FunctionSyntaxKind functionSyntaxKind = | |||
| 8375 | hasHeritage == HasHeritage::Yes | |||
| 8376 | ? FunctionSyntaxKind::DerivedClassConstructor | |||
| 8377 | : FunctionSyntaxKind::ClassConstructor; | |||
| 8378 | ||||
| 8379 | bool isSelfHosting = options().selfHostingMode; | |||
| 8380 | FunctionFlags flags = | |||
| 8381 | InitialFunctionFlags(functionSyntaxKind, GeneratorKind::NotGenerator, | |||
| 8382 | FunctionAsyncKind::SyncFunction, isSelfHosting); | |||
| 8383 | ||||
| 8384 | // Create the top-level field initializer node. | |||
| 8385 | FunctionNodeType funNode; | |||
| 8386 | MOZ_TRY_VAR(funNode,do { auto mozTryVarTempResult_ = (handler_.newFunction(functionSyntaxKind , synthesizedBodyPos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8387 | handler_.newFunction(functionSyntaxKind, synthesizedBodyPos))do { auto mozTryVarTempResult_ = (handler_.newFunction(functionSyntaxKind , synthesizedBodyPos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8388 | ||||
| 8389 | // If we see any inner function, note it on our current context. The bytecode | |||
| 8390 | // emitter may eliminate the function later, but we use a conservative | |||
| 8391 | // definition for consistency between lazy and full parsing. | |||
| 8392 | pc_->sc()->setHasInnerFunctions(); | |||
| 8393 | ||||
| 8394 | // When fully parsing a lazy script, we do not fully reparse its inner | |||
| 8395 | // functions, which are also lazy. Instead, their free variables and source | |||
| 8396 | // extents are recorded and may be skipped. | |||
| 8397 | if (handler_.reuseLazyInnerFunctions()) { | |||
| 8398 | if (!skipLazyInnerFunction(funNode, synthesizedBodyPos.begin, | |||
| 8399 | /* tryAnnexB = */ false)) { | |||
| 8400 | return errorResult(); | |||
| 8401 | } | |||
| 8402 | ||||
| 8403 | return funNode; | |||
| 8404 | } | |||
| 8405 | ||||
| 8406 | // Create the FunctionBox and link it to the function object. | |||
| 8407 | Directives directives(true); | |||
| 8408 | FunctionBox* funbox = newFunctionBox( | |||
| 8409 | funNode, className, flags, synthesizedBodyPos.begin, directives, | |||
| 8410 | GeneratorKind::NotGenerator, FunctionAsyncKind::SyncFunction); | |||
| 8411 | if (!funbox) { | |||
| 8412 | return errorResult(); | |||
| 8413 | } | |||
| 8414 | funbox->initWithEnclosingParseContext(pc_, functionSyntaxKind); | |||
| 8415 | setFunctionEndFromCurrentToken(funbox); | |||
| 8416 | ||||
| 8417 | // Mark this function as being synthesized by the parser. This means special | |||
| 8418 | // handling in delazification will be used since we don't have typical | |||
| 8419 | // function syntax. | |||
| 8420 | funbox->setSyntheticFunction(); | |||
| 8421 | ||||
| 8422 | // Push a SourceParseContext on to the stack. | |||
| 8423 | ParseContext* outerpc = pc_; | |||
| 8424 | SourceParseContext funpc(this, funbox, /* newDirectives = */ nullptr); | |||
| 8425 | if (!funpc.init()) { | |||
| 8426 | return errorResult(); | |||
| 8427 | } | |||
| 8428 | ||||
| 8429 | if (!synthesizeConstructorBody(synthesizedBodyPos, hasHeritage, funNode, | |||
| 8430 | funbox)) { | |||
| 8431 | return errorResult(); | |||
| 8432 | } | |||
| 8433 | ||||
| 8434 | if (!leaveInnerFunction(outerpc)) { | |||
| 8435 | return errorResult(); | |||
| 8436 | } | |||
| 8437 | ||||
| 8438 | return funNode; | |||
| 8439 | } | |||
| 8440 | ||||
| 8441 | template <class ParseHandler, typename Unit> | |||
| 8442 | bool GeneralParser<ParseHandler, Unit>::synthesizeConstructorBody( | |||
| 8443 | TokenPos synthesizedBodyPos, HasHeritage hasHeritage, | |||
| 8444 | FunctionNodeType funNode, FunctionBox* funbox) { | |||
| 8445 | MOZ_ASSERT(funbox->isClassConstructor())do { static_assert( mozilla::detail::AssertionConditionType< decltype(funbox->isClassConstructor())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(funbox->isClassConstructor ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("funbox->isClassConstructor()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8445); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funbox->isClassConstructor()" ")"); do { *((volatile int*)__null) = 8445; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8446 | ||||
| 8447 | // Create a ParamsBodyNode for the parameters + body (there are no | |||
| 8448 | // parameters). | |||
| 8449 | ParamsBodyNodeType argsbody; | |||
| 8450 | MOZ_TRY_VAR_OR_RETURN(argsbody, handler_.newParamsBody(synthesizedBodyPos),do { auto parserTryVarTempResult_ = (handler_.newParamsBody(synthesizedBodyPos )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (argsbody) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8451 | false)do { auto parserTryVarTempResult_ = (handler_.newParamsBody(synthesizedBodyPos )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (argsbody) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8452 | handler_.setFunctionFormalParametersAndBody(funNode, argsbody); | |||
| 8453 | setFunctionStartAtPosition(funbox, synthesizedBodyPos); | |||
| 8454 | ||||
| 8455 | if (hasHeritage == HasHeritage::Yes) { | |||
| 8456 | // Synthesize the equivalent to `function f(...args)` | |||
| 8457 | funbox->setHasRest(); | |||
| 8458 | if (!notePositionalFormalParameter( | |||
| 8459 | funNode, TaggedParserAtomIndex::WellKnown::dot_args_(), | |||
| 8460 | synthesizedBodyPos.begin, | |||
| 8461 | /* disallowDuplicateParams = */ false, | |||
| 8462 | /* duplicatedParam = */ nullptr)) { | |||
| 8463 | return false; | |||
| 8464 | } | |||
| 8465 | funbox->setArgCount(1); | |||
| 8466 | } else { | |||
| 8467 | funbox->setArgCount(0); | |||
| 8468 | } | |||
| 8469 | ||||
| 8470 | pc_->functionScope().useAsVarScope(pc_); | |||
| 8471 | ||||
| 8472 | ListNodeType stmtList; | |||
| 8473 | MOZ_TRY_VAR_OR_RETURN(stmtList, handler_.newStatementList(synthesizedBodyPos),do { auto parserTryVarTempResult_ = (handler_.newStatementList (synthesizedBodyPos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (stmtList) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8474 | false)do { auto parserTryVarTempResult_ = (handler_.newStatementList (synthesizedBodyPos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (stmtList) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8475 | ||||
| 8476 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown::dot_this_())) { | |||
| 8477 | return false; | |||
| 8478 | } | |||
| 8479 | ||||
| 8480 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown::dot_initializers_())) { | |||
| 8481 | return false; | |||
| 8482 | } | |||
| 8483 | ||||
| 8484 | #ifdef ENABLE_DECORATORS | |||
| 8485 | if (!noteUsedName( | |||
| 8486 | TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_())) { | |||
| 8487 | return false; | |||
| 8488 | } | |||
| 8489 | #endif | |||
| 8490 | ||||
| 8491 | if (hasHeritage == HasHeritage::Yes) { | |||
| 8492 | // |super()| implicitly reads |new.target|. | |||
| 8493 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown::dot_newTarget_())) { | |||
| 8494 | return false; | |||
| 8495 | } | |||
| 8496 | ||||
| 8497 | NameNodeType thisName; | |||
| 8498 | MOZ_TRY_VAR_OR_RETURN(thisName, newThisName(), false)do { auto parserTryVarTempResult_ = (newThisName()); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (thisName) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 8499 | ||||
| 8500 | UnaryNodeType superBase; | |||
| 8501 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newSuperBase(thisName , synthesizedBodyPos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (superBase) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8502 | superBase, handler_.newSuperBase(thisName, synthesizedBodyPos), false)do { auto parserTryVarTempResult_ = (handler_.newSuperBase(thisName , synthesizedBodyPos)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (superBase) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8503 | ||||
| 8504 | ListNodeType arguments; | |||
| 8505 | MOZ_TRY_VAR_OR_RETURN(arguments, handler_.newArguments(synthesizedBodyPos),do { auto parserTryVarTempResult_ = (handler_.newArguments(synthesizedBodyPos )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (arguments) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8506 | false)do { auto parserTryVarTempResult_ = (handler_.newArguments(synthesizedBodyPos )); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr()) , 0))) { return (false); } (arguments) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8507 | ||||
| 8508 | NameNodeType argsNameNode; | |||
| 8509 | MOZ_TRY_VAR_OR_RETURN(argsNameNode,do { auto parserTryVarTempResult_ = (newName(TaggedParserAtomIndex ::WellKnown::dot_args_(), synthesizedBodyPos)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (argsNameNode) = parserTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8510 | newName(TaggedParserAtomIndex::WellKnown::dot_args_(),do { auto parserTryVarTempResult_ = (newName(TaggedParserAtomIndex ::WellKnown::dot_args_(), synthesizedBodyPos)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (argsNameNode) = parserTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8511 | synthesizedBodyPos),do { auto parserTryVarTempResult_ = (newName(TaggedParserAtomIndex ::WellKnown::dot_args_(), synthesizedBodyPos)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (argsNameNode) = parserTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8512 | false)do { auto parserTryVarTempResult_ = (newName(TaggedParserAtomIndex ::WellKnown::dot_args_(), synthesizedBodyPos)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (argsNameNode) = parserTryVarTempResult_.unwrap(); } while ( 0); | |||
| 8513 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown::dot_args_())) { | |||
| 8514 | return false; | |||
| 8515 | } | |||
| 8516 | ||||
| 8517 | UnaryNodeType spreadArgs; | |||
| 8518 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newSpread(synthesizedBodyPos .begin, argsNameNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (spreadArgs) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8519 | spreadArgs, handler_.newSpread(synthesizedBodyPos.begin, argsNameNode),do { auto parserTryVarTempResult_ = (handler_.newSpread(synthesizedBodyPos .begin, argsNameNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (spreadArgs) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8520 | false)do { auto parserTryVarTempResult_ = (handler_.newSpread(synthesizedBodyPos .begin, argsNameNode)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (spreadArgs) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8521 | handler_.addList(arguments, spreadArgs); | |||
| 8522 | ||||
| 8523 | CallNodeType superCall; | |||
| 8524 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newSuperCall(superBase , arguments, true)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (superCall) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8525 | superCall,do { auto parserTryVarTempResult_ = (handler_.newSuperCall(superBase , arguments, true)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (superCall) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8526 | handler_.newSuperCall(superBase, arguments, /* isSpread = */ true),do { auto parserTryVarTempResult_ = (handler_.newSuperCall(superBase , arguments, true)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (superCall) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8527 | false)do { auto parserTryVarTempResult_ = (handler_.newSuperCall(superBase , arguments, true)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (superCall) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8528 | ||||
| 8529 | BinaryNodeType setThis; | |||
| 8530 | MOZ_TRY_VAR_OR_RETURN(setThis, handler_.newSetThis(thisName, superCall),do { auto parserTryVarTempResult_ = (handler_.newSetThis(thisName , superCall)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (setThis) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 8531 | false)do { auto parserTryVarTempResult_ = (handler_.newSetThis(thisName , superCall)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (setThis) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 8532 | ||||
| 8533 | UnaryNodeType exprStatement; | |||
| 8534 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newExprStatement (setThis, synthesizedBodyPos.end)); if ((__builtin_expect(!!( parserTryVarTempResult_.isErr()), 0))) { return (false); } (exprStatement ) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8535 | exprStatement,do { auto parserTryVarTempResult_ = (handler_.newExprStatement (setThis, synthesizedBodyPos.end)); if ((__builtin_expect(!!( parserTryVarTempResult_.isErr()), 0))) { return (false); } (exprStatement ) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8536 | handler_.newExprStatement(setThis, synthesizedBodyPos.end), false)do { auto parserTryVarTempResult_ = (handler_.newExprStatement (setThis, synthesizedBodyPos.end)); if ((__builtin_expect(!!( parserTryVarTempResult_.isErr()), 0))) { return (false); } (exprStatement ) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 8537 | ||||
| 8538 | handler_.addStatementToList(stmtList, exprStatement); | |||
| 8539 | } | |||
| 8540 | ||||
| 8541 | bool canSkipLazyClosedOverBindings = handler_.reuseClosedOverBindings(); | |||
| 8542 | if (!pc_->declareFunctionThis(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 8543 | return false; | |||
| 8544 | } | |||
| 8545 | if (!pc_->declareNewTarget(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 8546 | return false; | |||
| 8547 | } | |||
| 8548 | ||||
| 8549 | LexicalScopeNodeType initializerBody; | |||
| 8550 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (initializerBody) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8551 | initializerBody,do { auto parserTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (initializerBody) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8552 | finishLexicalScope(pc_->varScope(), stmtList, ScopeKind::FunctionLexical),do { auto parserTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (initializerBody) = parserTryVarTempResult_.unwrap(); } while (0) | |||
| 8553 | false)do { auto parserTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (initializerBody) = parserTryVarTempResult_.unwrap(); } while (0); | |||
| 8554 | handler_.setBeginPosition(initializerBody, stmtList); | |||
| 8555 | handler_.setEndPosition(initializerBody, stmtList); | |||
| 8556 | ||||
| 8557 | handler_.setFunctionBody(funNode, initializerBody); | |||
| 8558 | ||||
| 8559 | return finishFunction(); | |||
| 8560 | } | |||
| 8561 | ||||
| 8562 | template <class ParseHandler, typename Unit> | |||
| 8563 | typename ParseHandler::FunctionNodeResult | |||
| 8564 | GeneralParser<ParseHandler, Unit>::privateMethodInitializer( | |||
| 8565 | TokenPos propNamePos, TaggedParserAtomIndex propAtom, | |||
| 8566 | TaggedParserAtomIndex storedMethodAtom) { | |||
| 8567 | if (!abortIfSyntaxParser()) { | |||
| 8568 | return errorResult(); | |||
| 8569 | } | |||
| 8570 | ||||
| 8571 | // Synthesize an initializer function that the constructor can use to stamp a | |||
| 8572 | // private method onto an instance object. | |||
| 8573 | FunctionSyntaxKind syntaxKind = FunctionSyntaxKind::FieldInitializer; | |||
| 8574 | FunctionAsyncKind asyncKind = FunctionAsyncKind::SyncFunction; | |||
| 8575 | GeneratorKind generatorKind = GeneratorKind::NotGenerator; | |||
| 8576 | bool isSelfHosting = options().selfHostingMode; | |||
| 8577 | FunctionFlags flags = | |||
| 8578 | InitialFunctionFlags(syntaxKind, generatorKind, asyncKind, isSelfHosting); | |||
| 8579 | ||||
| 8580 | FunctionNodeType funNode; | |||
| 8581 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, propNamePos))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , propNamePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8582 | ||||
| 8583 | Directives directives(true); | |||
| 8584 | FunctionBox* funbox = | |||
| 8585 | newFunctionBox(funNode, TaggedParserAtomIndex::null(), flags, | |||
| 8586 | propNamePos.begin, directives, generatorKind, asyncKind); | |||
| 8587 | if (!funbox) { | |||
| 8588 | return errorResult(); | |||
| 8589 | } | |||
| 8590 | funbox->initWithEnclosingParseContext(pc_, syntaxKind); | |||
| 8591 | ||||
| 8592 | // Push a SourceParseContext on to the stack. | |||
| 8593 | ParseContext* outerpc = pc_; | |||
| 8594 | SourceParseContext funpc(this, funbox, /* newDirectives = */ nullptr); | |||
| 8595 | if (!funpc.init()) { | |||
| 8596 | return errorResult(); | |||
| 8597 | } | |||
| 8598 | pc_->functionScope().useAsVarScope(pc_); | |||
| 8599 | ||||
| 8600 | // Add empty parameter list. | |||
| 8601 | ParamsBodyNodeType argsbody; | |||
| 8602 | MOZ_TRY_VAR(argsbody, handler_.newParamsBody(propNamePos))do { auto mozTryVarTempResult_ = (handler_.newParamsBody(propNamePos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (argsbody ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8603 | handler_.setFunctionFormalParametersAndBody(funNode, argsbody); | |||
| 8604 | setFunctionStartAtCurrentToken(funbox); | |||
| 8605 | funbox->setArgCount(0); | |||
| 8606 | ||||
| 8607 | // Note both the stored private method body and it's private name as being | |||
| 8608 | // used in the initializer. They will be emitted into the method body in the | |||
| 8609 | // BCE. | |||
| 8610 | if (!noteUsedName(storedMethodAtom)) { | |||
| 8611 | return errorResult(); | |||
| 8612 | } | |||
| 8613 | MOZ_TRY(privateNameReference(propAtom))do { auto mozTryTempResult_ = ::mozilla::ToResult(privateNameReference (propAtom)); if ((__builtin_expect(!!(mozTryTempResult_.isErr ()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0); | |||
| 8614 | ||||
| 8615 | // Unlike field initializers, private method initializers are not created with | |||
| 8616 | // a body of synthesized AST nodes. Instead, the body is left empty and the | |||
| 8617 | // initializer is synthesized at the bytecode level. | |||
| 8618 | // See BytecodeEmitter::emitPrivateMethodInitializer. | |||
| 8619 | ListNodeType stmtList; | |||
| 8620 | MOZ_TRY_VAR(stmtList, handler_.newStatementList(propNamePos))do { auto mozTryVarTempResult_ = (handler_.newStatementList(propNamePos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (stmtList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8621 | ||||
| 8622 | bool canSkipLazyClosedOverBindings = handler_.reuseClosedOverBindings(); | |||
| 8623 | if (!pc_->declareFunctionThis(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 8624 | return errorResult(); | |||
| 8625 | } | |||
| 8626 | if (!pc_->declareNewTarget(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 8627 | return errorResult(); | |||
| 8628 | } | |||
| 8629 | ||||
| 8630 | LexicalScopeNodeType initializerBody; | |||
| 8631 | MOZ_TRY_VAR(initializerBody, finishLexicalScope(pc_->varScope(), stmtList,do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializerBody) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 8632 | ScopeKind::FunctionLexical))do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializerBody) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 8633 | handler_.setBeginPosition(initializerBody, stmtList); | |||
| 8634 | handler_.setEndPosition(initializerBody, stmtList); | |||
| 8635 | handler_.setFunctionBody(funNode, initializerBody); | |||
| 8636 | ||||
| 8637 | // Set field-initializer lambda boundary to start at property name and end | |||
| 8638 | // after method body. | |||
| 8639 | setFunctionStartAtPosition(funbox, propNamePos); | |||
| 8640 | setFunctionEndFromCurrentToken(funbox); | |||
| 8641 | ||||
| 8642 | if (!finishFunction()) { | |||
| 8643 | return errorResult(); | |||
| 8644 | } | |||
| 8645 | ||||
| 8646 | if (!leaveInnerFunction(outerpc)) { | |||
| 8647 | return errorResult(); | |||
| 8648 | } | |||
| 8649 | ||||
| 8650 | return funNode; | |||
| 8651 | } | |||
| 8652 | ||||
| 8653 | template <class ParseHandler, typename Unit> | |||
| 8654 | typename ParseHandler::FunctionNodeResult | |||
| 8655 | GeneralParser<ParseHandler, Unit>::staticClassBlock( | |||
| 8656 | ClassInitializedMembers& classInitializedMembers) { | |||
| 8657 | // Both for getting-this-done, and because this will invariably be executed, | |||
| 8658 | // syntax parsing should be aborted. | |||
| 8659 | if (!abortIfSyntaxParser()) { | |||
| 8660 | return errorResult(); | |||
| 8661 | } | |||
| 8662 | ||||
| 8663 | FunctionSyntaxKind syntaxKind = FunctionSyntaxKind::StaticClassBlock; | |||
| 8664 | FunctionAsyncKind asyncKind = FunctionAsyncKind::SyncFunction; | |||
| 8665 | GeneratorKind generatorKind = GeneratorKind::NotGenerator; | |||
| 8666 | bool isSelfHosting = options().selfHostingMode; | |||
| 8667 | FunctionFlags flags = | |||
| 8668 | InitialFunctionFlags(syntaxKind, generatorKind, asyncKind, isSelfHosting); | |||
| 8669 | ||||
| 8670 | AutoAwaitIsKeyword awaitIsKeyword(this, AwaitHandling::AwaitIsDisallowed); | |||
| 8671 | ||||
| 8672 | // Create the function node for the static class body. | |||
| 8673 | FunctionNodeType funNode; | |||
| 8674 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, pos()))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8675 | ||||
| 8676 | // Create the FunctionBox and link it to the function object. | |||
| 8677 | Directives directives(true); | |||
| 8678 | FunctionBox* funbox = | |||
| 8679 | newFunctionBox(funNode, TaggedParserAtomIndex::null(), flags, pos().begin, | |||
| 8680 | directives, generatorKind, asyncKind); | |||
| 8681 | if (!funbox) { | |||
| 8682 | return errorResult(); | |||
| 8683 | } | |||
| 8684 | funbox->initWithEnclosingParseContext(pc_, syntaxKind); | |||
| 8685 | MOZ_ASSERT(funbox->isSyntheticFunction())do { static_assert( mozilla::detail::AssertionConditionType< decltype(funbox->isSyntheticFunction())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(funbox->isSyntheticFunction ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("funbox->isSyntheticFunction()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8685); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funbox->isSyntheticFunction()" ")"); do { *((volatile int*)__null) = 8685; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8686 | MOZ_ASSERT(!funbox->allowSuperCall())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!funbox->allowSuperCall())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!funbox->allowSuperCall() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!funbox->allowSuperCall()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8686); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!funbox->allowSuperCall()" ")"); do { *((volatile int*)__null) = 8686; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8687 | MOZ_ASSERT(!funbox->allowArguments())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!funbox->allowArguments())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!funbox->allowArguments() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!funbox->allowArguments()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8687); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!funbox->allowArguments()" ")"); do { *((volatile int*)__null) = 8687; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8688 | MOZ_ASSERT(!funbox->allowReturn())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!funbox->allowReturn())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!funbox->allowReturn()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("!funbox->allowReturn()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8688); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!funbox->allowReturn()" ")"); do { *((volatile int*)__null) = 8688; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8689 | ||||
| 8690 | // Set start at `static` token. | |||
| 8691 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Static))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Static))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Static)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Static)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8691); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Static)" ")"); do { *((volatile int*)__null) = 8691; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8692 | setFunctionStartAtCurrentToken(funbox); | |||
| 8693 | ||||
| 8694 | // Push a SourceParseContext on to the stack. | |||
| 8695 | ParseContext* outerpc = pc_; | |||
| 8696 | SourceParseContext funpc(this, funbox, /* newDirectives = */ nullptr); | |||
| 8697 | if (!funpc.init()) { | |||
| 8698 | return errorResult(); | |||
| 8699 | } | |||
| 8700 | ||||
| 8701 | pc_->functionScope().useAsVarScope(pc_); | |||
| 8702 | ||||
| 8703 | uint32_t start = pos().begin; | |||
| 8704 | ||||
| 8705 | tokenStream.consumeKnownToken(TokenKind::LeftCurly); | |||
| 8706 | ||||
| 8707 | // Static class blocks are code-generated as if they were static field | |||
| 8708 | // initializers, so we bump the staticFields count here, which ensures | |||
| 8709 | // .staticInitializers is noted as used. | |||
| 8710 | classInitializedMembers.staticFields++; | |||
| 8711 | ||||
| 8712 | LexicalScopeNodeType body; | |||
| 8713 | MOZ_TRY_VAR(body,do { auto mozTryVarTempResult_ = (functionBody(InHandling::InAllowed , YieldHandling::YieldIsKeyword, syntaxKind, FunctionBodyType ::StatementListBody)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8714 | functionBody(InHandling::InAllowed, YieldHandling::YieldIsKeyword,do { auto mozTryVarTempResult_ = (functionBody(InHandling::InAllowed , YieldHandling::YieldIsKeyword, syntaxKind, FunctionBodyType ::StatementListBody)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8715 | syntaxKind, FunctionBodyType::StatementListBody))do { auto mozTryVarTempResult_ = (functionBody(InHandling::InAllowed , YieldHandling::YieldIsKeyword, syntaxKind, FunctionBodyType ::StatementListBody)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (body) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8716 | ||||
| 8717 | if (anyChars.isEOF()) { | |||
| 8718 | error(JSMSG_UNTERMINATED_STATIC_CLASS_BLOCK); | |||
| 8719 | return errorResult(); | |||
| 8720 | } | |||
| 8721 | ||||
| 8722 | tokenStream.consumeKnownToken(TokenKind::RightCurly, | |||
| 8723 | TokenStream::Modifier::SlashIsRegExp); | |||
| 8724 | ||||
| 8725 | TokenPos wholeBodyPos(start, pos().end); | |||
| 8726 | ||||
| 8727 | handler_.setEndPosition(funNode, wholeBodyPos.end); | |||
| 8728 | setFunctionEndFromCurrentToken(funbox); | |||
| 8729 | ||||
| 8730 | // Create a ParamsBodyNode for the parameters + body (there are no | |||
| 8731 | // parameters). | |||
| 8732 | ParamsBodyNodeType argsbody; | |||
| 8733 | MOZ_TRY_VAR(argsbody, handler_.newParamsBody(wholeBodyPos))do { auto mozTryVarTempResult_ = (handler_.newParamsBody(wholeBodyPos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (argsbody ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8734 | ||||
| 8735 | handler_.setFunctionFormalParametersAndBody(funNode, argsbody); | |||
| 8736 | funbox->setArgCount(0); | |||
| 8737 | ||||
| 8738 | if (pc_->superScopeNeedsHomeObject()) { | |||
| 8739 | funbox->setNeedsHomeObject(); | |||
| 8740 | } | |||
| 8741 | ||||
| 8742 | handler_.setEndPosition(body, pos().begin); | |||
| 8743 | handler_.setEndPosition(funNode, pos().end); | |||
| 8744 | handler_.setFunctionBody(funNode, body); | |||
| 8745 | ||||
| 8746 | if (!finishFunction()) { | |||
| 8747 | return errorResult(); | |||
| 8748 | } | |||
| 8749 | ||||
| 8750 | if (!leaveInnerFunction(outerpc)) { | |||
| 8751 | return errorResult(); | |||
| 8752 | } | |||
| 8753 | ||||
| 8754 | return funNode; | |||
| 8755 | } | |||
| 8756 | ||||
| 8757 | template <class ParseHandler, typename Unit> | |||
| 8758 | typename ParseHandler::FunctionNodeResult | |||
| 8759 | GeneralParser<ParseHandler, Unit>::fieldInitializerOpt( | |||
| 8760 | TokenPos propNamePos, Node propName, TaggedParserAtomIndex propAtom, | |||
| 8761 | ClassInitializedMembers& classInitializedMembers, bool isStatic, | |||
| 8762 | HasHeritage hasHeritage) { | |||
| 8763 | if (!abortIfSyntaxParser()) { | |||
| 8764 | return errorResult(); | |||
| 8765 | } | |||
| 8766 | ||||
| 8767 | bool hasInitializer = false; | |||
| 8768 | if (!tokenStream.matchToken(&hasInitializer, TokenKind::Assign, | |||
| 8769 | TokenStream::SlashIsDiv)) { | |||
| 8770 | return errorResult(); | |||
| 8771 | } | |||
| 8772 | ||||
| 8773 | FunctionSyntaxKind syntaxKind = FunctionSyntaxKind::FieldInitializer; | |||
| 8774 | FunctionAsyncKind asyncKind = FunctionAsyncKind::SyncFunction; | |||
| 8775 | GeneratorKind generatorKind = GeneratorKind::NotGenerator; | |||
| 8776 | bool isSelfHosting = options().selfHostingMode; | |||
| 8777 | FunctionFlags flags = | |||
| 8778 | InitialFunctionFlags(syntaxKind, generatorKind, asyncKind, isSelfHosting); | |||
| 8779 | ||||
| 8780 | // Create the top-level field initializer node. | |||
| 8781 | FunctionNodeType funNode; | |||
| 8782 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, propNamePos))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , propNamePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8783 | ||||
| 8784 | // Create the FunctionBox and link it to the function object. | |||
| 8785 | Directives directives(true); | |||
| 8786 | FunctionBox* funbox = | |||
| 8787 | newFunctionBox(funNode, TaggedParserAtomIndex::null(), flags, | |||
| 8788 | propNamePos.begin, directives, generatorKind, asyncKind); | |||
| 8789 | if (!funbox) { | |||
| 8790 | return errorResult(); | |||
| 8791 | } | |||
| 8792 | funbox->initWithEnclosingParseContext(pc_, syntaxKind); | |||
| 8793 | MOZ_ASSERT(funbox->isSyntheticFunction())do { static_assert( mozilla::detail::AssertionConditionType< decltype(funbox->isSyntheticFunction())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(funbox->isSyntheticFunction ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("funbox->isSyntheticFunction()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 8793); AnnotateMozCrashReason("MOZ_ASSERT" "(" "funbox->isSyntheticFunction()" ")"); do { *((volatile int*)__null) = 8793; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 8794 | ||||
| 8795 | // We can't use setFunctionStartAtCurrentToken because that uses pos().begin, | |||
| 8796 | // which is incorrect for fields without initializers (pos() points to the | |||
| 8797 | // field identifier) | |||
| 8798 | setFunctionStartAtPosition(funbox, propNamePos); | |||
| 8799 | ||||
| 8800 | // Push a SourceParseContext on to the stack. | |||
| 8801 | ParseContext* outerpc = pc_; | |||
| 8802 | SourceParseContext funpc(this, funbox, /* newDirectives = */ nullptr); | |||
| 8803 | if (!funpc.init()) { | |||
| 8804 | return errorResult(); | |||
| 8805 | } | |||
| 8806 | ||||
| 8807 | pc_->functionScope().useAsVarScope(pc_); | |||
| 8808 | ||||
| 8809 | Node initializerExpr; | |||
| 8810 | if (hasInitializer) { | |||
| 8811 | // Parse the expression for the field initializer. | |||
| 8812 | { | |||
| 8813 | AutoAwaitIsKeyword awaitHandling(this, AwaitIsName); | |||
| 8814 | MOZ_TRY_VAR(initializerExpr,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, YieldIsName , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8815 | assignExpr(InAllowed, YieldIsName, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, YieldIsName , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8816 | } | |||
| 8817 | ||||
| 8818 | handler_.checkAndSetIsDirectRHSAnonFunction(initializerExpr); | |||
| 8819 | } else { | |||
| 8820 | MOZ_TRY_VAR(initializerExpr, handler_.newRawUndefinedLiteral(propNamePos))do { auto mozTryVarTempResult_ = (handler_.newRawUndefinedLiteral (propNamePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8821 | } | |||
| 8822 | ||||
| 8823 | TokenPos wholeInitializerPos(propNamePos.begin, pos().end); | |||
| 8824 | ||||
| 8825 | // Update the end position of the parse node. | |||
| 8826 | handler_.setEndPosition(funNode, wholeInitializerPos.end); | |||
| 8827 | setFunctionEndFromCurrentToken(funbox); | |||
| 8828 | ||||
| 8829 | // Create a ParamsBodyNode for the parameters + body (there are no | |||
| 8830 | // parameters). | |||
| 8831 | ParamsBodyNodeType argsbody; | |||
| 8832 | MOZ_TRY_VAR(argsbody, handler_.newParamsBody(wholeInitializerPos))do { auto mozTryVarTempResult_ = (handler_.newParamsBody(wholeInitializerPos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (argsbody ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8833 | handler_.setFunctionFormalParametersAndBody(funNode, argsbody); | |||
| 8834 | funbox->setArgCount(0); | |||
| 8835 | ||||
| 8836 | NameNodeType thisName; | |||
| 8837 | MOZ_TRY_VAR(thisName, newThisName())do { auto mozTryVarTempResult_ = (newThisName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (thisName) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 8838 | ||||
| 8839 | // Build `this.field` expression. | |||
| 8840 | ThisLiteralType propAssignThis; | |||
| 8841 | MOZ_TRY_VAR(propAssignThis,do { auto mozTryVarTempResult_ = (handler_.newThisLiteral(wholeInitializerPos , thisName)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignThis ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8842 | handler_.newThisLiteral(wholeInitializerPos, thisName))do { auto mozTryVarTempResult_ = (handler_.newThisLiteral(wholeInitializerPos , thisName)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignThis ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8843 | ||||
| 8844 | Node propAssignFieldAccess; | |||
| 8845 | uint32_t indexValue; | |||
| 8846 | if (!propAtom) { | |||
| 8847 | // See BytecodeEmitter::emitCreateFieldKeys for an explanation of what | |||
| 8848 | // .fieldKeys means and its purpose. | |||
| 8849 | NameNodeType fieldKeysName; | |||
| 8850 | if (isStatic) { | |||
| 8851 | MOZ_TRY_VAR(do { auto mozTryVarTempResult_ = (newInternalDotName( TaggedParserAtomIndex ::WellKnown::dot_staticFieldKeys_())); if ((__builtin_expect( !!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (fieldKeysName) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 8852 | fieldKeysName,do { auto mozTryVarTempResult_ = (newInternalDotName( TaggedParserAtomIndex ::WellKnown::dot_staticFieldKeys_())); if ((__builtin_expect( !!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (fieldKeysName) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 8853 | newInternalDotName(do { auto mozTryVarTempResult_ = (newInternalDotName( TaggedParserAtomIndex ::WellKnown::dot_staticFieldKeys_())); if ((__builtin_expect( !!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (fieldKeysName) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 8854 | TaggedParserAtomIndex::WellKnown::dot_staticFieldKeys_()))do { auto mozTryVarTempResult_ = (newInternalDotName( TaggedParserAtomIndex ::WellKnown::dot_staticFieldKeys_())); if ((__builtin_expect( !!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (fieldKeysName) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 8855 | } else { | |||
| 8856 | MOZ_TRY_VAR(fieldKeysName,do { auto mozTryVarTempResult_ = (newInternalDotName( TaggedParserAtomIndex ::WellKnown::dot_fieldKeys_())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (fieldKeysName) = mozTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8857 | newInternalDotName(do { auto mozTryVarTempResult_ = (newInternalDotName( TaggedParserAtomIndex ::WellKnown::dot_fieldKeys_())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (fieldKeysName) = mozTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8858 | TaggedParserAtomIndex::WellKnown::dot_fieldKeys_()))do { auto mozTryVarTempResult_ = (newInternalDotName( TaggedParserAtomIndex ::WellKnown::dot_fieldKeys_())); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (fieldKeysName) = mozTryVarTempResult_.unwrap(); } while ( 0); | |||
| 8859 | } | |||
| 8860 | if (!fieldKeysName) { | |||
| 8861 | return errorResult(); | |||
| 8862 | } | |||
| 8863 | ||||
| 8864 | double fieldKeyIndex; | |||
| 8865 | if (isStatic) { | |||
| 8866 | fieldKeyIndex = classInitializedMembers.staticFieldKeys++; | |||
| 8867 | } else { | |||
| 8868 | fieldKeyIndex = classInitializedMembers.instanceFieldKeys++; | |||
| 8869 | } | |||
| 8870 | Node fieldKeyIndexNode; | |||
| 8871 | MOZ_TRY_VAR(fieldKeyIndexNode,do { auto mozTryVarTempResult_ = (handler_.newNumber(fieldKeyIndex , DecimalPoint::NoDecimal, wholeInitializerPos)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (fieldKeyIndexNode) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 8872 | handler_.newNumber(fieldKeyIndex, DecimalPoint::NoDecimal,do { auto mozTryVarTempResult_ = (handler_.newNumber(fieldKeyIndex , DecimalPoint::NoDecimal, wholeInitializerPos)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (fieldKeyIndexNode) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 8873 | wholeInitializerPos))do { auto mozTryVarTempResult_ = (handler_.newNumber(fieldKeyIndex , DecimalPoint::NoDecimal, wholeInitializerPos)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (fieldKeyIndexNode) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 8874 | ||||
| 8875 | Node fieldKeyValue; | |||
| 8876 | MOZ_TRY_VAR(fieldKeyValue,do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (fieldKeysName, fieldKeyIndexNode, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (fieldKeyValue ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8877 | handler_.newPropertyByValue(fieldKeysName, fieldKeyIndexNode,do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (fieldKeysName, fieldKeyIndexNode, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (fieldKeyValue ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8878 | wholeInitializerPos.end))do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (fieldKeysName, fieldKeyIndexNode, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (fieldKeyValue ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8879 | ||||
| 8880 | MOZ_TRY_VAR(propAssignFieldAccess,do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (propAssignThis, fieldKeyValue, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8881 | handler_.newPropertyByValue(propAssignThis, fieldKeyValue,do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (propAssignThis, fieldKeyValue, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8882 | wholeInitializerPos.end))do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (propAssignThis, fieldKeyValue, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8883 | } else if (handler_.isPrivateName(propName)) { | |||
| 8884 | // It would be nice if we could tweak this here such that only if | |||
| 8885 | // HasHeritage::Yes we end up emitting CheckPrivateField, but otherwise we | |||
| 8886 | // emit InitElem -- this is an optimization to minimize HasOwn checks | |||
| 8887 | // in InitElem for classes without heritage. | |||
| 8888 | // | |||
| 8889 | // Further tweaking would be to ultimately only do CheckPrivateField for the | |||
| 8890 | // -first- field in a derived class, which would suffice to match the | |||
| 8891 | // semantic check. | |||
| 8892 | ||||
| 8893 | NameNodeType privateNameNode; | |||
| 8894 | MOZ_TRY_VAR(privateNameNode, privateNameReference(propAtom))do { auto mozTryVarTempResult_ = (privateNameReference(propAtom )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (privateNameNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8895 | ||||
| 8896 | MOZ_TRY_VAR(propAssignFieldAccess,do { auto mozTryVarTempResult_ = (handler_.newPrivateMemberAccess (propAssignThis, privateNameNode, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8897 | handler_.newPrivateMemberAccess(propAssignThis, privateNameNode,do { auto mozTryVarTempResult_ = (handler_.newPrivateMemberAccess (propAssignThis, privateNameNode, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8898 | wholeInitializerPos.end))do { auto mozTryVarTempResult_ = (handler_.newPrivateMemberAccess (propAssignThis, privateNameNode, wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8899 | } else if (this->parserAtoms().isIndex(propAtom, &indexValue)) { | |||
| 8900 | MOZ_TRY_VAR(propAssignFieldAccess,do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (propAssignThis, propName, wholeInitializerPos.end)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propAssignFieldAccess) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 8901 | handler_.newPropertyByValue(propAssignThis, propName,do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (propAssignThis, propName, wholeInitializerPos.end)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propAssignFieldAccess) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 8902 | wholeInitializerPos.end))do { auto mozTryVarTempResult_ = (handler_.newPropertyByValue (propAssignThis, propName, wholeInitializerPos.end)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propAssignFieldAccess) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 8903 | } else { | |||
| 8904 | NameNodeType propAssignName; | |||
| 8905 | MOZ_TRY_VAR(propAssignName,do { auto mozTryVarTempResult_ = (handler_.newPropertyName(propAtom , wholeInitializerPos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignName) = mozTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8906 | handler_.newPropertyName(propAtom, wholeInitializerPos))do { auto mozTryVarTempResult_ = (handler_.newPropertyName(propAtom , wholeInitializerPos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignName) = mozTryVarTempResult_.unwrap(); } while ( 0); | |||
| 8907 | ||||
| 8908 | MOZ_TRY_VAR(propAssignFieldAccess,do { auto mozTryVarTempResult_ = (handler_.newPropertyAccess( propAssignThis, propAssignName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8909 | handler_.newPropertyAccess(propAssignThis, propAssignName))do { auto mozTryVarTempResult_ = (handler_.newPropertyAccess( propAssignThis, propAssignName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propAssignFieldAccess) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8910 | } | |||
| 8911 | ||||
| 8912 | // Synthesize an property init. | |||
| 8913 | BinaryNodeType initializerPropInit; | |||
| 8914 | MOZ_TRY_VAR(initializerPropInit,do { auto mozTryVarTempResult_ = (handler_.newInitExpr(propAssignFieldAccess , initializerExpr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerPropInit) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 8915 | handler_.newInitExpr(propAssignFieldAccess, initializerExpr))do { auto mozTryVarTempResult_ = (handler_.newInitExpr(propAssignFieldAccess , initializerExpr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerPropInit) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8916 | ||||
| 8917 | UnaryNodeType exprStatement; | |||
| 8918 | MOZ_TRY_VAR(exprStatement, handler_.newExprStatement(do { auto mozTryVarTempResult_ = (handler_.newExprStatement( initializerPropInit , wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exprStatement) = mozTryVarTempResult_.unwrap(); } while ( 0) | |||
| 8919 | initializerPropInit, wholeInitializerPos.end))do { auto mozTryVarTempResult_ = (handler_.newExprStatement( initializerPropInit , wholeInitializerPos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (exprStatement) = mozTryVarTempResult_.unwrap(); } while ( 0); | |||
| 8920 | ||||
| 8921 | ListNodeType statementList; | |||
| 8922 | MOZ_TRY_VAR(statementList, handler_.newStatementList(wholeInitializerPos))do { auto mozTryVarTempResult_ = (handler_.newStatementList(wholeInitializerPos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (statementList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 8923 | handler_.addStatementToList(statementList, exprStatement); | |||
| 8924 | ||||
| 8925 | bool canSkipLazyClosedOverBindings = handler_.reuseClosedOverBindings(); | |||
| 8926 | if (!pc_->declareFunctionThis(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 8927 | return errorResult(); | |||
| 8928 | } | |||
| 8929 | if (!pc_->declareNewTarget(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 8930 | return errorResult(); | |||
| 8931 | } | |||
| 8932 | ||||
| 8933 | // Set the function's body to the field assignment. | |||
| 8934 | LexicalScopeNodeType initializerBody; | |||
| 8935 | MOZ_TRY_VAR(initializerBody,do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), statementList, ScopeKind::FunctionLexical)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerBody) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 8936 | finishLexicalScope(pc_->varScope(), statementList,do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), statementList, ScopeKind::FunctionLexical)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerBody) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 8937 | ScopeKind::FunctionLexical))do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), statementList, ScopeKind::FunctionLexical)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerBody) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 8938 | ||||
| 8939 | handler_.setFunctionBody(funNode, initializerBody); | |||
| 8940 | ||||
| 8941 | if (pc_->superScopeNeedsHomeObject()) { | |||
| 8942 | funbox->setNeedsHomeObject(); | |||
| 8943 | } | |||
| 8944 | ||||
| 8945 | if (!finishFunction()) { | |||
| 8946 | return errorResult(); | |||
| 8947 | } | |||
| 8948 | ||||
| 8949 | if (!leaveInnerFunction(outerpc)) { | |||
| 8950 | return errorResult(); | |||
| 8951 | } | |||
| 8952 | ||||
| 8953 | return funNode; | |||
| 8954 | } | |||
| 8955 | ||||
| 8956 | template <class ParseHandler, typename Unit> | |||
| 8957 | typename ParseHandler::FunctionNodeResult | |||
| 8958 | GeneralParser<ParseHandler, Unit>::synthesizePrivateMethodInitializer( | |||
| 8959 | TaggedParserAtomIndex propAtom, AccessorType accessorType, | |||
| 8960 | TokenPos propNamePos) { | |||
| 8961 | if (!abortIfSyntaxParser()) { | |||
| 8962 | return errorResult(); | |||
| 8963 | } | |||
| 8964 | ||||
| 8965 | // Synthesize a name for the lexical variable that will store the | |||
| 8966 | // accessor body. | |||
| 8967 | StringBuffer storedMethodName(fc_); | |||
| 8968 | if (!storedMethodName.append(this->parserAtoms(), propAtom)) { | |||
| 8969 | return errorResult(); | |||
| 8970 | } | |||
| 8971 | if (!storedMethodName.append( | |||
| 8972 | accessorType == AccessorType::Getter ? ".getter" : ".setter")) { | |||
| 8973 | return errorResult(); | |||
| 8974 | } | |||
| 8975 | auto storedMethodProp = | |||
| 8976 | storedMethodName.finishParserAtom(this->parserAtoms(), fc_); | |||
| 8977 | if (!storedMethodProp) { | |||
| 8978 | return errorResult(); | |||
| 8979 | } | |||
| 8980 | if (!noteDeclaredName(storedMethodProp, DeclarationKind::Synthetic, pos())) { | |||
| 8981 | return errorResult(); | |||
| 8982 | } | |||
| 8983 | ||||
| 8984 | return privateMethodInitializer(propNamePos, propAtom, storedMethodProp); | |||
| 8985 | } | |||
| 8986 | ||||
| 8987 | #ifdef ENABLE_DECORATORS | |||
| 8988 | template <class ParseHandler, typename Unit> | |||
| 8989 | typename ParseHandler::FunctionNodeResult | |||
| 8990 | GeneralParser<ParseHandler, Unit>::synthesizeAddInitializerFunction( | |||
| 8991 | TaggedParserAtomIndex initializers, YieldHandling yieldHandling) { | |||
| 8992 | if (!abortIfSyntaxParser()) { | |||
| 8993 | return errorResult(); | |||
| 8994 | } | |||
| 8995 | ||||
| 8996 | // TODO: Add support for static and class extra initializers, see bug 1868220 | |||
| 8997 | // and bug 1868221. | |||
| 8998 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_ ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_ ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9000); AnnotateMozCrashReason("MOZ_ASSERT" "(" "initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_()" ")"); do { *((volatile int*)__null) = 9000; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 8999 | initializers ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_ ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_ ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9000); AnnotateMozCrashReason("MOZ_ASSERT" "(" "initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_()" ")"); do { *((volatile int*)__null) = 9000; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 9000 | TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_())do { static_assert( mozilla::detail::AssertionConditionType< decltype(initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_ ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_ ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9000); AnnotateMozCrashReason("MOZ_ASSERT" "(" "initializers == TaggedParserAtomIndex::WellKnown::dot_instanceExtraInitializers_()" ")"); do { *((volatile int*)__null) = 9000; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9001 | ||||
| 9002 | TokenPos propNamePos = pos(); | |||
| 9003 | ||||
| 9004 | // Synthesize an addInitializer function that can be used to append to | |||
| 9005 | // .initializers | |||
| 9006 | FunctionSyntaxKind syntaxKind = FunctionSyntaxKind::Statement; | |||
| 9007 | FunctionAsyncKind asyncKind = FunctionAsyncKind::SyncFunction; | |||
| 9008 | GeneratorKind generatorKind = GeneratorKind::NotGenerator; | |||
| 9009 | bool isSelfHosting = options().selfHostingMode; | |||
| 9010 | FunctionFlags flags = | |||
| 9011 | InitialFunctionFlags(syntaxKind, generatorKind, asyncKind, isSelfHosting); | |||
| 9012 | ||||
| 9013 | FunctionNodeType funNode; | |||
| 9014 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, propNamePos))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , propNamePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9015 | ||||
| 9016 | Directives directives(true); | |||
| 9017 | FunctionBox* funbox = | |||
| 9018 | newFunctionBox(funNode, TaggedParserAtomIndex::null(), flags, | |||
| 9019 | propNamePos.begin, directives, generatorKind, asyncKind); | |||
| 9020 | if (!funbox) { | |||
| 9021 | return errorResult(); | |||
| 9022 | } | |||
| 9023 | funbox->initWithEnclosingParseContext(pc_, syntaxKind); | |||
| 9024 | ||||
| 9025 | ParseContext* outerpc = pc_; | |||
| 9026 | SourceParseContext funpc(this, funbox, /* newDirectives = */ nullptr); | |||
| 9027 | if (!funpc.init()) { | |||
| 9028 | return errorResult(); | |||
| 9029 | } | |||
| 9030 | pc_->functionScope().useAsVarScope(pc_); | |||
| 9031 | ||||
| 9032 | // Takes a single parameter, `initializer`. | |||
| 9033 | ParamsBodyNodeType params; | |||
| 9034 | MOZ_TRY_VAR(params, handler_.newParamsBody(propNamePos))do { auto mozTryVarTempResult_ = (handler_.newParamsBody(propNamePos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (params) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9035 | ||||
| 9036 | handler_.setFunctionFormalParametersAndBody(funNode, params); | |||
| 9037 | ||||
| 9038 | constexpr bool disallowDuplicateParams = true; | |||
| 9039 | bool duplicatedParam = false; | |||
| 9040 | if (!notePositionalFormalParameter( | |||
| 9041 | funNode, TaggedParserAtomIndex::WellKnown::initializer(), pos().begin, | |||
| 9042 | disallowDuplicateParams, &duplicatedParam)) { | |||
| 9043 | return null(); | |||
| 9044 | } | |||
| 9045 | MOZ_ASSERT(!duplicatedParam)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!duplicatedParam)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!duplicatedParam))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!duplicatedParam" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9045); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!duplicatedParam" ")"); do { *((volatile int*)__null) = 9045; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9046 | MOZ_ASSERT(pc_->positionalFormalParameterNames().length() == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->positionalFormalParameterNames().length() == 1)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pc_->positionalFormalParameterNames().length() == 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pc_->positionalFormalParameterNames().length() == 1", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9046); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->positionalFormalParameterNames().length() == 1" ")"); do { *((volatile int*)__null) = 9046; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9047 | ||||
| 9048 | funbox->setLength(1); | |||
| 9049 | funbox->setArgCount(1); | |||
| 9050 | setFunctionStartAtCurrentToken(funbox); | |||
| 9051 | ||||
| 9052 | // Like private method initializers, the addInitializer method is not created | |||
| 9053 | // with a body of synthesized AST nodes. Instead, the body is left empty and | |||
| 9054 | // the initializer is synthesized at the bytecode level. See | |||
| 9055 | // DecoratorEmitter::emitCreateAddInitializerFunction. | |||
| 9056 | ListNodeType stmtList; | |||
| 9057 | MOZ_TRY_VAR(stmtList, handler_.newStatementList(propNamePos))do { auto mozTryVarTempResult_ = (handler_.newStatementList(propNamePos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (stmtList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9058 | ||||
| 9059 | if (!noteUsedName(initializers)) { | |||
| 9060 | return null(); | |||
| 9061 | } | |||
| 9062 | ||||
| 9063 | bool canSkipLazyClosedOverBindings = handler_.reuseClosedOverBindings(); | |||
| 9064 | if (!pc_->declareFunctionThis(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 9065 | return null(); | |||
| 9066 | } | |||
| 9067 | if (!pc_->declareNewTarget(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 9068 | return null(); | |||
| 9069 | } | |||
| 9070 | ||||
| 9071 | LexicalScopeNodeType addInitializerBody; | |||
| 9072 | MOZ_TRY_VAR(addInitializerBody,do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (addInitializerBody) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 9073 | finishLexicalScope(pc_->varScope(), stmtList,do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (addInitializerBody) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 9074 | ScopeKind::FunctionLexical))do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), stmtList, ScopeKind::FunctionLexical)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (addInitializerBody) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 9075 | handler_.setBeginPosition(addInitializerBody, stmtList); | |||
| 9076 | handler_.setEndPosition(addInitializerBody, stmtList); | |||
| 9077 | handler_.setFunctionBody(funNode, addInitializerBody); | |||
| 9078 | ||||
| 9079 | // Set field-initializer lambda boundary to start at property name and end | |||
| 9080 | // after method body. | |||
| 9081 | setFunctionStartAtPosition(funbox, propNamePos); | |||
| 9082 | setFunctionEndFromCurrentToken(funbox); | |||
| 9083 | ||||
| 9084 | if (!finishFunction()) { | |||
| 9085 | return errorResult(); | |||
| 9086 | } | |||
| 9087 | ||||
| 9088 | if (!leaveInnerFunction(outerpc)) { | |||
| 9089 | return errorResult(); | |||
| 9090 | } | |||
| 9091 | ||||
| 9092 | return funNode; | |||
| 9093 | } | |||
| 9094 | ||||
| 9095 | template <class ParseHandler, typename Unit> | |||
| 9096 | typename ParseHandler::ClassMethodResult | |||
| 9097 | GeneralParser<ParseHandler, Unit>::synthesizeAccessor( | |||
| 9098 | Node propName, TokenPos propNamePos, TaggedParserAtomIndex propAtom, | |||
| 9099 | TaggedParserAtomIndex privateStateNameAtom, bool isStatic, | |||
| 9100 | FunctionSyntaxKind syntaxKind, | |||
| 9101 | ClassInitializedMembers& classInitializedMembers) { | |||
| 9102 | // Decorators Proposal | |||
| 9103 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorgetter | |||
| 9104 | // The abstract operation MakeAutoAccessorGetter takes arguments homeObject | |||
| 9105 | // (an Object), name (a property key or Private Name), and privateStateName (a | |||
| 9106 | // Private Name) and returns a function object. | |||
| 9107 | // | |||
| 9108 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorsetter | |||
| 9109 | // The abstract operation MakeAutoAccessorSetter takes arguments homeObject | |||
| 9110 | // (an Object), name (a property key or Private Name), and privateStateName (a | |||
| 9111 | // Private Name) and returns a function object. | |||
| 9112 | if (!abortIfSyntaxParser()) { | |||
| 9113 | return errorResult(); | |||
| 9114 | } | |||
| 9115 | ||||
| 9116 | AccessorType accessorType = syntaxKind == FunctionSyntaxKind::Getter | |||
| 9117 | ? AccessorType::Getter | |||
| 9118 | : AccessorType::Setter; | |||
| 9119 | ||||
| 9120 | mozilla::Maybe<FunctionNodeType> initializerIfPrivate = Nothing(); | |||
| 9121 | if (!isStatic && handler_.isPrivateName(propName)) { | |||
| 9122 | classInitializedMembers.privateAccessors++; | |||
| 9123 | FunctionNodeType initializerNode; | |||
| 9124 | MOZ_TRY_VAR(initializerNode, synthesizePrivateMethodInitializer(do { auto mozTryVarTempResult_ = (synthesizePrivateMethodInitializer ( propAtom, accessorType, propNamePos)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializerNode) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 9125 | propAtom, accessorType, propNamePos))do { auto mozTryVarTempResult_ = (synthesizePrivateMethodInitializer ( propAtom, accessorType, propNamePos)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializerNode) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 9126 | initializerIfPrivate = Some(initializerNode); | |||
| 9127 | handler_.setPrivateNameKind(propName, PrivateNameKind::GetterSetter); | |||
| 9128 | } | |||
| 9129 | ||||
| 9130 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorgetter | |||
| 9131 | // 2. Let getter be CreateBuiltinFunction(getterClosure, 0, "get", « »). | |||
| 9132 | // | |||
| 9133 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorsetter | |||
| 9134 | // 2. Let setter be CreateBuiltinFunction(setterClosure, 1, "set", « »). | |||
| 9135 | StringBuffer storedMethodName(fc_); | |||
| 9136 | if (!storedMethodName.append(accessorType == AccessorType::Getter ? "get" | |||
| 9137 | : "set")) { | |||
| 9138 | return errorResult(); | |||
| 9139 | } | |||
| 9140 | TaggedParserAtomIndex funNameAtom = | |||
| 9141 | storedMethodName.finishParserAtom(this->parserAtoms(), fc_); | |||
| 9142 | ||||
| 9143 | FunctionNodeType funNode; | |||
| 9144 | MOZ_TRY_VAR(funNode,do { auto mozTryVarTempResult_ = (synthesizeAccessorBody(funNameAtom , propNamePos, privateStateNameAtom, syntaxKind)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 9145 | synthesizeAccessorBody(funNameAtom, propNamePos,do { auto mozTryVarTempResult_ = (synthesizeAccessorBody(funNameAtom , propNamePos, privateStateNameAtom, syntaxKind)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 9146 | privateStateNameAtom, syntaxKind))do { auto mozTryVarTempResult_ = (synthesizeAccessorBody(funNameAtom , propNamePos, privateStateNameAtom, syntaxKind)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9147 | ||||
| 9148 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorgetter | |||
| 9149 | // 3. Perform MakeMethod(getter, homeObject). | |||
| 9150 | // 4. Return getter. | |||
| 9151 | // | |||
| 9152 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorsetter | |||
| 9153 | // 3. Perform MakeMethod(setter, homeObject). | |||
| 9154 | // 4. Return setter. | |||
| 9155 | return handler_.newClassMethodDefinition( | |||
| 9156 | propName, funNode, accessorType, isStatic, initializerIfPrivate, null()); | |||
| 9157 | } | |||
| 9158 | ||||
| 9159 | template <class ParseHandler, typename Unit> | |||
| 9160 | typename ParseHandler::FunctionNodeResult | |||
| 9161 | GeneralParser<ParseHandler, Unit>::synthesizeAccessorBody( | |||
| 9162 | TaggedParserAtomIndex funNameAtom, TokenPos propNamePos, | |||
| 9163 | TaggedParserAtomIndex propNameAtom, FunctionSyntaxKind syntaxKind) { | |||
| 9164 | if (!abortIfSyntaxParser()) { | |||
| 9165 | return errorResult(); | |||
| 9166 | } | |||
| 9167 | ||||
| 9168 | FunctionAsyncKind asyncKind = FunctionAsyncKind::SyncFunction; | |||
| 9169 | GeneratorKind generatorKind = GeneratorKind::NotGenerator; | |||
| 9170 | bool isSelfHosting = options().selfHostingMode; | |||
| 9171 | FunctionFlags flags = | |||
| 9172 | InitialFunctionFlags(syntaxKind, generatorKind, asyncKind, isSelfHosting); | |||
| 9173 | ||||
| 9174 | // Create the top-level function node. | |||
| 9175 | FunctionNodeType funNode; | |||
| 9176 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, propNamePos))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , propNamePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9177 | ||||
| 9178 | // Create the FunctionBox and link it to the function object. | |||
| 9179 | Directives directives(true); | |||
| 9180 | FunctionBox* funbox = | |||
| 9181 | newFunctionBox(funNode, funNameAtom, flags, propNamePos.begin, directives, | |||
| 9182 | generatorKind, asyncKind); | |||
| 9183 | if (!funbox) { | |||
| 9184 | return errorResult(); | |||
| 9185 | } | |||
| 9186 | funbox->initWithEnclosingParseContext(pc_, syntaxKind); | |||
| 9187 | funbox->setSyntheticFunction(); | |||
| 9188 | ||||
| 9189 | // Push a SourceParseContext on to the stack. | |||
| 9190 | ParseContext* outerpc = pc_; | |||
| 9191 | SourceParseContext funpc(this, funbox, /* newDirectives = */ nullptr); | |||
| 9192 | if (!funpc.init()) { | |||
| 9193 | return errorResult(); | |||
| 9194 | } | |||
| 9195 | ||||
| 9196 | pc_->functionScope().useAsVarScope(pc_); | |||
| 9197 | ||||
| 9198 | // The function we synthesize is located at the field with the | |||
| 9199 | // accessor. | |||
| 9200 | setFunctionStartAtCurrentToken(funbox); | |||
| 9201 | setFunctionEndFromCurrentToken(funbox); | |||
| 9202 | ||||
| 9203 | // Create a ListNode for the parameters + body | |||
| 9204 | ParamsBodyNodeType paramsbody; | |||
| 9205 | MOZ_TRY_VAR(paramsbody, handler_.newParamsBody(propNamePos))do { auto mozTryVarTempResult_ = (handler_.newParamsBody(propNamePos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (paramsbody ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9206 | handler_.setFunctionFormalParametersAndBody(funNode, paramsbody); | |||
| 9207 | ||||
| 9208 | if (syntaxKind == FunctionSyntaxKind::Getter) { | |||
| 9209 | funbox->setArgCount(0); | |||
| 9210 | } else { | |||
| 9211 | funbox->setArgCount(1); | |||
| 9212 | } | |||
| 9213 | ||||
| 9214 | // Build `this` expression to access the privateStateName for use in the | |||
| 9215 | // operations to create the getter and setter below. | |||
| 9216 | NameNodeType thisName; | |||
| 9217 | MOZ_TRY_VAR(thisName, newThisName())do { auto mozTryVarTempResult_ = (newThisName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (thisName) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 9218 | ||||
| 9219 | ThisLiteralType propThis; | |||
| 9220 | MOZ_TRY_VAR(propThis, handler_.newThisLiteral(propNamePos, thisName))do { auto mozTryVarTempResult_ = (handler_.newThisLiteral(propNamePos , thisName)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propThis ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9221 | ||||
| 9222 | NameNodeType privateNameNode; | |||
| 9223 | MOZ_TRY_VAR(privateNameNode, privateNameReference(propNameAtom))do { auto mozTryVarTempResult_ = (privateNameReference(propNameAtom )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (privateNameNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9224 | ||||
| 9225 | Node propFieldAccess; | |||
| 9226 | MOZ_TRY_VAR(propFieldAccess, handler_.newPrivateMemberAccess(do { auto mozTryVarTempResult_ = (handler_.newPrivateMemberAccess ( propThis, privateNameNode, propNamePos.end)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propFieldAccess) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 9227 | propThis, privateNameNode, propNamePos.end))do { auto mozTryVarTempResult_ = (handler_.newPrivateMemberAccess ( propThis, privateNameNode, propNamePos.end)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propFieldAccess) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 9228 | ||||
| 9229 | Node accessorBody; | |||
| 9230 | if (syntaxKind == FunctionSyntaxKind::Getter) { | |||
| 9231 | // Decorators Proposal | |||
| 9232 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorgetter | |||
| 9233 | // 1. Let getterClosure be a new Abstract Closure with no parameters that | |||
| 9234 | // captures privateStateName and performs the following steps when called: | |||
| 9235 | // 1.a. Let o be the this value. | |||
| 9236 | // 1.b. Return ? PrivateGet(privateStateName, o). | |||
| 9237 | MOZ_TRY_VAR(accessorBody,do { auto mozTryVarTempResult_ = (handler_.newReturnStatement (propFieldAccess, propNamePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (accessorBody) = mozTryVarTempResult_.unwrap(); } while (0 ) | |||
| 9238 | handler_.newReturnStatement(propFieldAccess, propNamePos))do { auto mozTryVarTempResult_ = (handler_.newReturnStatement (propFieldAccess, propNamePos)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (accessorBody) = mozTryVarTempResult_.unwrap(); } while (0 ); | |||
| 9239 | } else { | |||
| 9240 | // Decorators Proposal | |||
| 9241 | // https://arai-a.github.io/ecma262-compare/?pr=2417&id=sec-makeautoaccessorsetter | |||
| 9242 | // The abstract operation MakeAutoAccessorSetter takes arguments homeObject | |||
| 9243 | // (an Object), name (a property key or Private Name), and privateStateName | |||
| 9244 | // (a Private Name) and returns a function object. | |||
| 9245 | // 1. Let setterClosure be a new Abstract Closure with parameters (value) | |||
| 9246 | // that captures privateStateName and performs the following steps when | |||
| 9247 | // called: | |||
| 9248 | // 1.a. Let o be the this value. | |||
| 9249 | notePositionalFormalParameter(funNode, | |||
| 9250 | TaggedParserAtomIndex::WellKnown::value(), | |||
| 9251 | /* pos = */ 0, false, | |||
| 9252 | /* duplicatedParam = */ nullptr); | |||
| 9253 | ||||
| 9254 | Node initializerExpr; | |||
| 9255 | MOZ_TRY_VAR(initializerExpr,do { auto mozTryVarTempResult_ = (handler_.newName(TaggedParserAtomIndex ::WellKnown::value(), propNamePos)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializerExpr) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 9256 | handler_.newName(TaggedParserAtomIndex::WellKnown::value(),do { auto mozTryVarTempResult_ = (handler_.newName(TaggedParserAtomIndex ::WellKnown::value(), propNamePos)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializerExpr) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 9257 | propNamePos))do { auto mozTryVarTempResult_ = (handler_.newName(TaggedParserAtomIndex ::WellKnown::value(), propNamePos)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (initializerExpr) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 9258 | ||||
| 9259 | // 1.b. Perform ? PrivateSet(privateStateName, o, value). | |||
| 9260 | Node assignment; | |||
| 9261 | MOZ_TRY_VAR(assignment,do { auto mozTryVarTempResult_ = (handler_.newAssignment(ParseNodeKind ::AssignExpr, propFieldAccess, initializerExpr)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (assignment) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 9262 | handler_.newAssignment(ParseNodeKind::AssignExpr,do { auto mozTryVarTempResult_ = (handler_.newAssignment(ParseNodeKind ::AssignExpr, propFieldAccess, initializerExpr)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (assignment) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 9263 | propFieldAccess, initializerExpr))do { auto mozTryVarTempResult_ = (handler_.newAssignment(ParseNodeKind ::AssignExpr, propFieldAccess, initializerExpr)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (assignment) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 9264 | ||||
| 9265 | MOZ_TRY_VAR(accessorBody,do { auto mozTryVarTempResult_ = (handler_.newExprStatement(assignment , propNamePos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (accessorBody) = mozTryVarTempResult_.unwrap(); } while (0 ) | |||
| 9266 | handler_.newExprStatement(assignment, propNamePos.end))do { auto mozTryVarTempResult_ = (handler_.newExprStatement(assignment , propNamePos.end)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (accessorBody) = mozTryVarTempResult_.unwrap(); } while (0 ); | |||
| 9267 | ||||
| 9268 | // 1.c. Return undefined. | |||
| 9269 | } | |||
| 9270 | ||||
| 9271 | ListNodeType statementList; | |||
| 9272 | MOZ_TRY_VAR(statementList, handler_.newStatementList(propNamePos))do { auto mozTryVarTempResult_ = (handler_.newStatementList(propNamePos )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (statementList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9273 | handler_.addStatementToList(statementList, accessorBody); | |||
| 9274 | ||||
| 9275 | bool canSkipLazyClosedOverBindings = handler_.reuseClosedOverBindings(); | |||
| 9276 | if (!pc_->declareFunctionThis(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 9277 | return errorResult(); | |||
| 9278 | } | |||
| 9279 | if (!pc_->declareNewTarget(usedNames_, canSkipLazyClosedOverBindings)) { | |||
| 9280 | return errorResult(); | |||
| 9281 | } | |||
| 9282 | ||||
| 9283 | LexicalScopeNodeType initializerBody; | |||
| 9284 | MOZ_TRY_VAR(initializerBody,do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), statementList, ScopeKind::FunctionLexical)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerBody) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 9285 | finishLexicalScope(pc_->varScope(), statementList,do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), statementList, ScopeKind::FunctionLexical)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerBody) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 9286 | ScopeKind::FunctionLexical))do { auto mozTryVarTempResult_ = (finishLexicalScope(pc_-> varScope(), statementList, ScopeKind::FunctionLexical)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (initializerBody) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 9287 | ||||
| 9288 | handler_.setFunctionBody(funNode, initializerBody); | |||
| 9289 | ||||
| 9290 | if (pc_->superScopeNeedsHomeObject()) { | |||
| 9291 | funbox->setNeedsHomeObject(); | |||
| 9292 | } | |||
| 9293 | ||||
| 9294 | if (!finishFunction()) { | |||
| 9295 | return errorResult(); | |||
| 9296 | } | |||
| 9297 | ||||
| 9298 | if (!leaveInnerFunction(outerpc)) { | |||
| 9299 | return errorResult(); | |||
| 9300 | } | |||
| 9301 | ||||
| 9302 | return funNode; | |||
| 9303 | } | |||
| 9304 | ||||
| 9305 | #endif | |||
| 9306 | ||||
| 9307 | bool ParserBase::nextTokenContinuesLetDeclaration(TokenKind next) { | |||
| 9308 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Let))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Let))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::Let)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Let)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9308); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Let)" ")"); do { *((volatile int*)__null) = 9308; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9309 | MOZ_ASSERT(anyChars.nextToken().type == next)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.nextToken().type == next)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.nextToken().type == next))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.nextToken().type == next", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9309); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.nextToken().type == next" ")"); do { *((volatile int*)__null) = 9309; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9310 | ||||
| 9311 | TokenStreamShared::verifyConsistentModifier(TokenStreamShared::SlashIsDiv, | |||
| 9312 | anyChars.nextToken()); | |||
| 9313 | ||||
| 9314 | // Destructuring continues a let declaration. | |||
| 9315 | if (next == TokenKind::LeftBracket || next == TokenKind::LeftCurly) { | |||
| 9316 | return true; | |||
| 9317 | } | |||
| 9318 | ||||
| 9319 | // A "let" edge case deserves special comment. Consider this: | |||
| 9320 | // | |||
| 9321 | // let // not an ASI opportunity | |||
| 9322 | // let; | |||
| 9323 | // | |||
| 9324 | // Static semantics in §13.3.1.1 turn a LexicalDeclaration that binds | |||
| 9325 | // "let" into an early error. Does this retroactively permit ASI so | |||
| 9326 | // that we should parse this as two ExpressionStatements? No. ASI | |||
| 9327 | // resolves during parsing. Static semantics only apply to the full | |||
| 9328 | // parse tree with ASI applied. No backsies! | |||
| 9329 | ||||
| 9330 | // Otherwise a let declaration must have a name. | |||
| 9331 | return TokenKindIsPossibleIdentifier(next); | |||
| 9332 | } | |||
| 9333 | ||||
| 9334 | template <class ParseHandler, typename Unit> | |||
| 9335 | typename ParseHandler::DeclarationListNodeResult | |||
| 9336 | GeneralParser<ParseHandler, Unit>::variableStatement( | |||
| 9337 | YieldHandling yieldHandling) { | |||
| 9338 | DeclarationListNodeType vars; | |||
| 9339 | MOZ_TRY_VAR(vars, declarationList(yieldHandling, ParseNodeKind::VarStmt))do { auto mozTryVarTempResult_ = (declarationList(yieldHandling , ParseNodeKind::VarStmt)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (vars) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9340 | if (!matchOrInsertSemicolon()) { | |||
| 9341 | return errorResult(); | |||
| 9342 | } | |||
| 9343 | return vars; | |||
| 9344 | } | |||
| 9345 | ||||
| 9346 | template <class ParseHandler, typename Unit> | |||
| 9347 | typename ParseHandler::NodeResult GeneralParser<ParseHandler, Unit>::statement( | |||
| 9348 | YieldHandling yieldHandling) { | |||
| 9349 | MOZ_ASSERT(checkOptionsCalled_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(checkOptionsCalled_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(checkOptionsCalled_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("checkOptionsCalled_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9349); AnnotateMozCrashReason("MOZ_ASSERT" "(" "checkOptionsCalled_" ")"); do { *((volatile int*)__null) = 9349; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9350 | ||||
| 9351 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 9352 | if (!recursion.check(this->fc_)) { | |||
| 9353 | return errorResult(); | |||
| 9354 | } | |||
| 9355 | ||||
| 9356 | TokenKind tt; | |||
| 9357 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 9358 | return errorResult(); | |||
| 9359 | } | |||
| 9360 | ||||
| 9361 | switch (tt) { | |||
| 9362 | // BlockStatement[?Yield, ?Return] | |||
| 9363 | case TokenKind::LeftCurly: | |||
| 9364 | return blockStatement(yieldHandling); | |||
| 9365 | ||||
| 9366 | // VariableStatement[?Yield] | |||
| 9367 | case TokenKind::Var: | |||
| 9368 | return variableStatement(yieldHandling); | |||
| 9369 | ||||
| 9370 | // EmptyStatement | |||
| 9371 | case TokenKind::Semi: | |||
| 9372 | return handler_.newEmptyStatement(pos()); | |||
| 9373 | ||||
| 9374 | // ExpressionStatement[?Yield]. | |||
| 9375 | ||||
| 9376 | case TokenKind::Yield: { | |||
| 9377 | // Don't use a ternary operator here due to obscure linker issues | |||
| 9378 | // around using static consts in the arms of a ternary. | |||
| 9379 | Modifier modifier; | |||
| 9380 | if (yieldExpressionsSupported()) { | |||
| 9381 | modifier = TokenStream::SlashIsRegExp; | |||
| 9382 | } else { | |||
| 9383 | modifier = TokenStream::SlashIsDiv; | |||
| 9384 | } | |||
| 9385 | ||||
| 9386 | TokenKind next; | |||
| 9387 | if (!tokenStream.peekToken(&next, modifier)) { | |||
| 9388 | return errorResult(); | |||
| 9389 | } | |||
| 9390 | ||||
| 9391 | if (next == TokenKind::Colon) { | |||
| 9392 | return labeledStatement(yieldHandling); | |||
| 9393 | } | |||
| 9394 | ||||
| 9395 | return expressionStatement(yieldHandling); | |||
| 9396 | } | |||
| 9397 | ||||
| 9398 | default: { | |||
| 9399 | // If we encounter an await in a module, and the module is not marked | |||
| 9400 | // as async, mark the module as async. | |||
| 9401 | if (tt == TokenKind::Await && !pc_->isAsync()) { | |||
| 9402 | if (pc_->atModuleTopLevel()) { | |||
| 9403 | if (!options().topLevelAwait) { | |||
| 9404 | error(JSMSG_TOP_LEVEL_AWAIT_NOT_SUPPORTED); | |||
| 9405 | return errorResult(); | |||
| 9406 | } | |||
| 9407 | pc_->sc()->asModuleContext()->setIsAsync(); | |||
| 9408 | MOZ_ASSERT(pc_->isAsync())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isAsync())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isAsync()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isAsync()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9408); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isAsync()" ")"); do { *((volatile int*)__null) = 9408; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9409 | } | |||
| 9410 | } | |||
| 9411 | ||||
| 9412 | // Avoid getting next token with SlashIsDiv. | |||
| 9413 | if (tt == TokenKind::Await && pc_->isAsync()) { | |||
| 9414 | return expressionStatement(yieldHandling); | |||
| 9415 | } | |||
| 9416 | ||||
| 9417 | if (!TokenKindIsPossibleIdentifier(tt)) { | |||
| 9418 | return expressionStatement(yieldHandling); | |||
| 9419 | } | |||
| 9420 | ||||
| 9421 | TokenKind next; | |||
| 9422 | if (!tokenStream.peekToken(&next)) { | |||
| 9423 | return errorResult(); | |||
| 9424 | } | |||
| 9425 | ||||
| 9426 | // |let| here can only be an Identifier, not a declaration. Give nicer | |||
| 9427 | // errors for declaration-looking typos. | |||
| 9428 | if (tt == TokenKind::Let) { | |||
| 9429 | bool forbiddenLetDeclaration = false; | |||
| 9430 | ||||
| 9431 | if (next == TokenKind::LeftBracket) { | |||
| 9432 | // Enforce ExpressionStatement's 'let [' lookahead restriction. | |||
| 9433 | forbiddenLetDeclaration = true; | |||
| 9434 | } else if (next == TokenKind::LeftCurly || | |||
| 9435 | TokenKindIsPossibleIdentifier(next)) { | |||
| 9436 | // 'let {' and 'let foo' aren't completely forbidden, if ASI | |||
| 9437 | // causes 'let' to be the entire Statement. But if they're | |||
| 9438 | // same-line, we can aggressively give a better error message. | |||
| 9439 | // | |||
| 9440 | // Note that this ignores 'yield' as TokenKind::Yield: we'll handle it | |||
| 9441 | // correctly but with a worse error message. | |||
| 9442 | TokenKind nextSameLine; | |||
| 9443 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
| 9444 | return errorResult(); | |||
| 9445 | } | |||
| 9446 | ||||
| 9447 | MOZ_ASSERT(TokenKindIsPossibleIdentifier(nextSameLine) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9449); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol" ")"); do { *((volatile int*)__null) = 9449; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 9448 | nextSameLine == TokenKind::LeftCurly ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9449); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol" ")"); do { *((volatile int*)__null) = 9449; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 9449 | nextSameLine == TokenKind::Eol)do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9449); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifier(nextSameLine) || nextSameLine == TokenKind::LeftCurly || nextSameLine == TokenKind::Eol" ")"); do { *((volatile int*)__null) = 9449; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9450 | ||||
| 9451 | forbiddenLetDeclaration = nextSameLine != TokenKind::Eol; | |||
| 9452 | } | |||
| 9453 | ||||
| 9454 | if (forbiddenLetDeclaration) { | |||
| 9455 | error(JSMSG_FORBIDDEN_AS_STATEMENT, "lexical declarations"); | |||
| 9456 | return errorResult(); | |||
| 9457 | } | |||
| 9458 | } else if (tt == TokenKind::Async) { | |||
| 9459 | // Peek only on the same line: ExpressionStatement's lookahead | |||
| 9460 | // restriction is phrased as | |||
| 9461 | // | |||
| 9462 | // [lookahead ∉ { '{', | |||
| 9463 | // function, | |||
| 9464 | // async [no LineTerminator here] function, | |||
| 9465 | // class, | |||
| 9466 | // let '[' }] | |||
| 9467 | // | |||
| 9468 | // meaning that code like this is valid: | |||
| 9469 | // | |||
| 9470 | // if (true) | |||
| 9471 | // async // ASI opportunity | |||
| 9472 | // function clownshoes() {} | |||
| 9473 | TokenKind maybeFunction; | |||
| 9474 | if (!tokenStream.peekTokenSameLine(&maybeFunction)) { | |||
| 9475 | return errorResult(); | |||
| 9476 | } | |||
| 9477 | ||||
| 9478 | if (maybeFunction == TokenKind::Function) { | |||
| 9479 | error(JSMSG_FORBIDDEN_AS_STATEMENT, "async function declarations"); | |||
| 9480 | return errorResult(); | |||
| 9481 | } | |||
| 9482 | ||||
| 9483 | // Otherwise this |async| begins an ExpressionStatement or is a | |||
| 9484 | // label name. | |||
| 9485 | } | |||
| 9486 | ||||
| 9487 | // NOTE: It's unfortunately allowed to have a label named 'let' in | |||
| 9488 | // non-strict code. 💯 | |||
| 9489 | if (next == TokenKind::Colon) { | |||
| 9490 | return labeledStatement(yieldHandling); | |||
| 9491 | } | |||
| 9492 | ||||
| 9493 | return expressionStatement(yieldHandling); | |||
| 9494 | } | |||
| 9495 | ||||
| 9496 | case TokenKind::New: | |||
| 9497 | return expressionStatement(yieldHandling, PredictInvoked); | |||
| 9498 | ||||
| 9499 | // IfStatement[?Yield, ?Return] | |||
| 9500 | case TokenKind::If: | |||
| 9501 | return ifStatement(yieldHandling); | |||
| 9502 | ||||
| 9503 | // BreakableStatement[?Yield, ?Return] | |||
| 9504 | // | |||
| 9505 | // BreakableStatement[Yield, Return]: | |||
| 9506 | // IterationStatement[?Yield, ?Return] | |||
| 9507 | // SwitchStatement[?Yield, ?Return] | |||
| 9508 | case TokenKind::Do: | |||
| 9509 | return doWhileStatement(yieldHandling); | |||
| 9510 | ||||
| 9511 | case TokenKind::While: | |||
| 9512 | return whileStatement(yieldHandling); | |||
| 9513 | ||||
| 9514 | case TokenKind::For: | |||
| 9515 | return forStatement(yieldHandling); | |||
| 9516 | ||||
| 9517 | case TokenKind::Switch: | |||
| 9518 | return switchStatement(yieldHandling); | |||
| 9519 | ||||
| 9520 | // ContinueStatement[?Yield] | |||
| 9521 | case TokenKind::Continue: | |||
| 9522 | return continueStatement(yieldHandling); | |||
| 9523 | ||||
| 9524 | // BreakStatement[?Yield] | |||
| 9525 | case TokenKind::Break: | |||
| 9526 | return breakStatement(yieldHandling); | |||
| 9527 | ||||
| 9528 | // [+Return] ReturnStatement[?Yield] | |||
| 9529 | case TokenKind::Return: | |||
| 9530 | // The Return parameter is only used here, and the effect is easily | |||
| 9531 | // detected this way, so don't bother passing around an extra parameter | |||
| 9532 | // everywhere. | |||
| 9533 | if (!pc_->allowReturn()) { | |||
| 9534 | error(JSMSG_BAD_RETURN_OR_YIELD, "return"); | |||
| 9535 | return errorResult(); | |||
| 9536 | } | |||
| 9537 | return returnStatement(yieldHandling); | |||
| 9538 | ||||
| 9539 | // WithStatement[?Yield, ?Return] | |||
| 9540 | case TokenKind::With: | |||
| 9541 | return withStatement(yieldHandling); | |||
| 9542 | ||||
| 9543 | // LabelledStatement[?Yield, ?Return] | |||
| 9544 | // This is really handled by default and TokenKind::Yield cases above. | |||
| 9545 | ||||
| 9546 | // ThrowStatement[?Yield] | |||
| 9547 | case TokenKind::Throw: | |||
| 9548 | return throwStatement(yieldHandling); | |||
| 9549 | ||||
| 9550 | // TryStatement[?Yield, ?Return] | |||
| 9551 | case TokenKind::Try: | |||
| 9552 | return tryStatement(yieldHandling); | |||
| 9553 | ||||
| 9554 | // DebuggerStatement | |||
| 9555 | case TokenKind::Debugger: | |||
| 9556 | return debuggerStatement(); | |||
| 9557 | ||||
| 9558 | // |function| is forbidden by lookahead restriction (unless as child | |||
| 9559 | // statement of |if| or |else|, but Parser::consequentOrAlternative | |||
| 9560 | // handles that). | |||
| 9561 | case TokenKind::Function: | |||
| 9562 | error(JSMSG_FORBIDDEN_AS_STATEMENT, "function declarations"); | |||
| 9563 | return errorResult(); | |||
| 9564 | ||||
| 9565 | // |class| is also forbidden by lookahead restriction. | |||
| 9566 | case TokenKind::Class: | |||
| 9567 | error(JSMSG_FORBIDDEN_AS_STATEMENT, "classes"); | |||
| 9568 | return errorResult(); | |||
| 9569 | ||||
| 9570 | // ImportDeclaration (only inside modules) | |||
| 9571 | case TokenKind::Import: | |||
| 9572 | return importDeclarationOrImportExpr(yieldHandling); | |||
| 9573 | ||||
| 9574 | // ExportDeclaration (only inside modules) | |||
| 9575 | case TokenKind::Export: | |||
| 9576 | return exportDeclaration(); | |||
| 9577 | ||||
| 9578 | // Miscellaneous error cases arguably better caught here than elsewhere. | |||
| 9579 | ||||
| 9580 | case TokenKind::Catch: | |||
| 9581 | error(JSMSG_CATCH_WITHOUT_TRY); | |||
| 9582 | return errorResult(); | |||
| 9583 | ||||
| 9584 | case TokenKind::Finally: | |||
| 9585 | error(JSMSG_FINALLY_WITHOUT_TRY); | |||
| 9586 | return errorResult(); | |||
| 9587 | ||||
| 9588 | // NOTE: default case handled in the ExpressionStatement section. | |||
| 9589 | } | |||
| 9590 | } | |||
| 9591 | ||||
| 9592 | template <class ParseHandler, typename Unit> | |||
| 9593 | typename ParseHandler::NodeResult | |||
| 9594 | GeneralParser<ParseHandler, Unit>::statementListItem( | |||
| 9595 | YieldHandling yieldHandling, bool canHaveDirectives /* = false */) { | |||
| 9596 | MOZ_ASSERT(checkOptionsCalled_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(checkOptionsCalled_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(checkOptionsCalled_))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("checkOptionsCalled_" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9596); AnnotateMozCrashReason("MOZ_ASSERT" "(" "checkOptionsCalled_" ")"); do { *((volatile int*)__null) = 9596; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9597 | ||||
| 9598 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 9599 | if (!recursion.check(this->fc_)) { | |||
| 9600 | return errorResult(); | |||
| 9601 | } | |||
| 9602 | ||||
| 9603 | TokenKind tt; | |||
| 9604 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 9605 | return errorResult(); | |||
| 9606 | } | |||
| 9607 | ||||
| 9608 | switch (tt) { | |||
| 9609 | // BlockStatement[?Yield, ?Return] | |||
| 9610 | case TokenKind::LeftCurly: | |||
| 9611 | return blockStatement(yieldHandling); | |||
| 9612 | ||||
| 9613 | // VariableStatement[?Yield] | |||
| 9614 | case TokenKind::Var: | |||
| 9615 | return variableStatement(yieldHandling); | |||
| 9616 | ||||
| 9617 | // EmptyStatement | |||
| 9618 | case TokenKind::Semi: | |||
| 9619 | return handler_.newEmptyStatement(pos()); | |||
| 9620 | ||||
| 9621 | // ExpressionStatement[?Yield]. | |||
| 9622 | // | |||
| 9623 | // These should probably be handled by a single ExpressionStatement | |||
| 9624 | // function in a default, not split up this way. | |||
| 9625 | case TokenKind::String: | |||
| 9626 | if (!canHaveDirectives && | |||
| 9627 | anyChars.currentToken().atom() == | |||
| 9628 | TaggedParserAtomIndex::WellKnown::use_asm_()) { | |||
| 9629 | if (!warning(JSMSG_USE_ASM_DIRECTIVE_FAIL)) { | |||
| 9630 | return errorResult(); | |||
| 9631 | } | |||
| 9632 | } | |||
| 9633 | return expressionStatement(yieldHandling); | |||
| 9634 | ||||
| 9635 | case TokenKind::Yield: { | |||
| 9636 | // Don't use a ternary operator here due to obscure linker issues | |||
| 9637 | // around using static consts in the arms of a ternary. | |||
| 9638 | Modifier modifier; | |||
| 9639 | if (yieldExpressionsSupported()) { | |||
| 9640 | modifier = TokenStream::SlashIsRegExp; | |||
| 9641 | } else { | |||
| 9642 | modifier = TokenStream::SlashIsDiv; | |||
| 9643 | } | |||
| 9644 | ||||
| 9645 | TokenKind next; | |||
| 9646 | if (!tokenStream.peekToken(&next, modifier)) { | |||
| 9647 | return errorResult(); | |||
| 9648 | } | |||
| 9649 | ||||
| 9650 | if (next == TokenKind::Colon) { | |||
| 9651 | return labeledStatement(yieldHandling); | |||
| 9652 | } | |||
| 9653 | ||||
| 9654 | return expressionStatement(yieldHandling); | |||
| 9655 | } | |||
| 9656 | ||||
| 9657 | default: { | |||
| 9658 | // If we encounter an await in a module, and the module is not marked | |||
| 9659 | // as async, mark the module as async. | |||
| 9660 | if (tt == TokenKind::Await && !pc_->isAsync()) { | |||
| 9661 | if (pc_->atModuleTopLevel()) { | |||
| 9662 | if (!options().topLevelAwait) { | |||
| 9663 | error(JSMSG_TOP_LEVEL_AWAIT_NOT_SUPPORTED); | |||
| 9664 | return errorResult(); | |||
| 9665 | } | |||
| 9666 | pc_->sc()->asModuleContext()->setIsAsync(); | |||
| 9667 | MOZ_ASSERT(pc_->isAsync())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isAsync())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isAsync()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isAsync()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9667); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isAsync()" ")"); do { *((volatile int*)__null) = 9667; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9668 | } | |||
| 9669 | } | |||
| 9670 | ||||
| 9671 | if (tt == TokenKind::Await && pc_->isAsync()) { | |||
| 9672 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 9673 | // Try finding evidence of a AwaitUsingDeclaration the syntax for which | |||
| 9674 | // would be: | |||
| 9675 | // await [no LineTerminator here] using [no LineTerminator here] | |||
| 9676 | // identifier | |||
| 9677 | ||||
| 9678 | TokenKind nextTokUsing = TokenKind::Eof; | |||
| 9679 | // Scan with regex modifier because when its await expression, `/` | |||
| 9680 | // should be treated as a regexp. | |||
| 9681 | if (!tokenStream.peekTokenSameLine(&nextTokUsing, | |||
| 9682 | TokenStream::SlashIsRegExp)) { | |||
| 9683 | return errorResult(); | |||
| 9684 | } | |||
| 9685 | ||||
| 9686 | if (nextTokUsing == TokenKind::Using && | |||
| 9687 | this->pc_->isUsingSyntaxAllowed()) { | |||
| 9688 | tokenStream.consumeKnownToken(nextTokUsing, | |||
| 9689 | TokenStream::SlashIsRegExp); | |||
| 9690 | TokenKind nextTokIdentifier = TokenKind::Eof; | |||
| 9691 | // Here we can use the Div modifier because if the next token is using | |||
| 9692 | // then a `/` as the next token can only be considered a division. | |||
| 9693 | if (!tokenStream.peekTokenSameLine(&nextTokIdentifier)) { | |||
| 9694 | return errorResult(); | |||
| 9695 | } | |||
| 9696 | if (TokenKindIsPossibleIdentifier(nextTokIdentifier)) { | |||
| 9697 | return lexicalDeclaration(yieldHandling, | |||
| 9698 | DeclarationKind::AwaitUsing); | |||
| 9699 | } | |||
| 9700 | anyChars.ungetToken(); // put back using. | |||
| 9701 | } | |||
| 9702 | #endif | |||
| 9703 | return expressionStatement(yieldHandling); | |||
| 9704 | } | |||
| 9705 | ||||
| 9706 | if (!TokenKindIsPossibleIdentifier(tt)) { | |||
| 9707 | return expressionStatement(yieldHandling); | |||
| 9708 | } | |||
| 9709 | ||||
| 9710 | TokenKind next; | |||
| 9711 | if (!tokenStream.peekToken(&next)) { | |||
| 9712 | return errorResult(); | |||
| 9713 | } | |||
| 9714 | ||||
| 9715 | if (tt == TokenKind::Let && nextTokenContinuesLetDeclaration(next)) { | |||
| 9716 | return lexicalDeclaration(yieldHandling, DeclarationKind::Let); | |||
| 9717 | } | |||
| 9718 | ||||
| 9719 | if (tt == TokenKind::Async) { | |||
| 9720 | TokenKind nextSameLine = TokenKind::Eof; | |||
| 9721 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
| 9722 | return errorResult(); | |||
| 9723 | } | |||
| 9724 | if (nextSameLine == TokenKind::Function) { | |||
| 9725 | uint32_t toStringStart = pos().begin; | |||
| 9726 | tokenStream.consumeKnownToken(TokenKind::Function); | |||
| 9727 | return functionStmt(toStringStart, yieldHandling, NameRequired, | |||
| 9728 | FunctionAsyncKind::AsyncFunction); | |||
| 9729 | } | |||
| 9730 | } | |||
| 9731 | ||||
| 9732 | if (next == TokenKind::Colon) { | |||
| 9733 | return labeledStatement(yieldHandling); | |||
| 9734 | } | |||
| 9735 | ||||
| 9736 | return expressionStatement(yieldHandling); | |||
| 9737 | } | |||
| 9738 | ||||
| 9739 | case TokenKind::New: | |||
| 9740 | return expressionStatement(yieldHandling, PredictInvoked); | |||
| 9741 | ||||
| 9742 | // IfStatement[?Yield, ?Return] | |||
| 9743 | case TokenKind::If: | |||
| 9744 | return ifStatement(yieldHandling); | |||
| 9745 | ||||
| 9746 | // BreakableStatement[?Yield, ?Return] | |||
| 9747 | // | |||
| 9748 | // BreakableStatement[Yield, Return]: | |||
| 9749 | // IterationStatement[?Yield, ?Return] | |||
| 9750 | // SwitchStatement[?Yield, ?Return] | |||
| 9751 | case TokenKind::Do: | |||
| 9752 | return doWhileStatement(yieldHandling); | |||
| 9753 | ||||
| 9754 | case TokenKind::While: | |||
| 9755 | return whileStatement(yieldHandling); | |||
| 9756 | ||||
| 9757 | case TokenKind::For: | |||
| 9758 | return forStatement(yieldHandling); | |||
| 9759 | ||||
| 9760 | case TokenKind::Switch: | |||
| 9761 | return switchStatement(yieldHandling); | |||
| 9762 | ||||
| 9763 | // ContinueStatement[?Yield] | |||
| 9764 | case TokenKind::Continue: | |||
| 9765 | return continueStatement(yieldHandling); | |||
| 9766 | ||||
| 9767 | // BreakStatement[?Yield] | |||
| 9768 | case TokenKind::Break: | |||
| 9769 | return breakStatement(yieldHandling); | |||
| 9770 | ||||
| 9771 | // [+Return] ReturnStatement[?Yield] | |||
| 9772 | case TokenKind::Return: | |||
| 9773 | // The Return parameter is only used here, and the effect is easily | |||
| 9774 | // detected this way, so don't bother passing around an extra parameter | |||
| 9775 | // everywhere. | |||
| 9776 | if (!pc_->allowReturn()) { | |||
| 9777 | error(JSMSG_BAD_RETURN_OR_YIELD, "return"); | |||
| 9778 | return errorResult(); | |||
| 9779 | } | |||
| 9780 | return returnStatement(yieldHandling); | |||
| 9781 | ||||
| 9782 | // WithStatement[?Yield, ?Return] | |||
| 9783 | case TokenKind::With: | |||
| 9784 | return withStatement(yieldHandling); | |||
| 9785 | ||||
| 9786 | // LabelledStatement[?Yield, ?Return] | |||
| 9787 | // This is really handled by default and TokenKind::Yield cases above. | |||
| 9788 | ||||
| 9789 | // ThrowStatement[?Yield] | |||
| 9790 | case TokenKind::Throw: | |||
| 9791 | return throwStatement(yieldHandling); | |||
| 9792 | ||||
| 9793 | // TryStatement[?Yield, ?Return] | |||
| 9794 | case TokenKind::Try: | |||
| 9795 | return tryStatement(yieldHandling); | |||
| 9796 | ||||
| 9797 | // DebuggerStatement | |||
| 9798 | case TokenKind::Debugger: | |||
| 9799 | return debuggerStatement(); | |||
| 9800 | ||||
| 9801 | // Declaration[Yield]: | |||
| 9802 | ||||
| 9803 | // HoistableDeclaration[?Yield, ~Default] | |||
| 9804 | case TokenKind::Function: | |||
| 9805 | return functionStmt(pos().begin, yieldHandling, NameRequired); | |||
| 9806 | ||||
| 9807 | // DecoratorList[?Yield, ?Await] opt ClassDeclaration[?Yield, ~Default] | |||
| 9808 | #ifdef ENABLE_DECORATORS | |||
| 9809 | case TokenKind::At: | |||
| 9810 | return classDefinition(yieldHandling, ClassStatement, NameRequired); | |||
| 9811 | #endif | |||
| 9812 | ||||
| 9813 | case TokenKind::Class: | |||
| 9814 | return classDefinition(yieldHandling, ClassStatement, NameRequired); | |||
| 9815 | ||||
| 9816 | // LexicalDeclaration[In, ?Yield] | |||
| 9817 | // LetOrConst BindingList[?In, ?Yield] | |||
| 9818 | case TokenKind::Const: | |||
| 9819 | // [In] is the default behavior, because for-loops specially parse | |||
| 9820 | // their heads to handle |in| in this situation. | |||
| 9821 | return lexicalDeclaration(yieldHandling, DeclarationKind::Const); | |||
| 9822 | ||||
| 9823 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 9824 | case TokenKind::Using: { | |||
| 9825 | TokenKind nextTok = TokenKind::Eol; | |||
| 9826 | if (!tokenStream.peekTokenSameLine(&nextTok)) { | |||
| 9827 | return errorResult(); | |||
| 9828 | } | |||
| 9829 | if (!TokenKindIsPossibleIdentifier(nextTok) || | |||
| 9830 | !this->pc_->isUsingSyntaxAllowed()) { | |||
| 9831 | if (!tokenStream.peekToken(&nextTok)) { | |||
| 9832 | return errorResult(); | |||
| 9833 | } | |||
| 9834 | // labelled statement could be like using\n:\nexpr | |||
| 9835 | if (nextTok == TokenKind::Colon) { | |||
| 9836 | return labeledStatement(yieldHandling); | |||
| 9837 | } | |||
| 9838 | return expressionStatement(yieldHandling); | |||
| 9839 | } | |||
| 9840 | return lexicalDeclaration(yieldHandling, DeclarationKind::Using); | |||
| 9841 | } | |||
| 9842 | #endif | |||
| 9843 | ||||
| 9844 | // ImportDeclaration (only inside modules) | |||
| 9845 | case TokenKind::Import: | |||
| 9846 | return importDeclarationOrImportExpr(yieldHandling); | |||
| 9847 | ||||
| 9848 | // ExportDeclaration (only inside modules) | |||
| 9849 | case TokenKind::Export: | |||
| 9850 | return exportDeclaration(); | |||
| 9851 | ||||
| 9852 | // Miscellaneous error cases arguably better caught here than elsewhere. | |||
| 9853 | ||||
| 9854 | case TokenKind::Catch: | |||
| 9855 | error(JSMSG_CATCH_WITHOUT_TRY); | |||
| 9856 | return errorResult(); | |||
| 9857 | ||||
| 9858 | case TokenKind::Finally: | |||
| 9859 | error(JSMSG_FINALLY_WITHOUT_TRY); | |||
| 9860 | return errorResult(); | |||
| 9861 | ||||
| 9862 | // NOTE: default case handled in the ExpressionStatement section. | |||
| 9863 | } | |||
| 9864 | } | |||
| 9865 | ||||
| 9866 | template <class ParseHandler, typename Unit> | |||
| 9867 | typename ParseHandler::NodeResult GeneralParser<ParseHandler, Unit>::expr( | |||
| 9868 | InHandling inHandling, YieldHandling yieldHandling, | |||
| 9869 | TripledotHandling tripledotHandling, | |||
| 9870 | PossibleError* possibleError /* = nullptr */, | |||
| 9871 | InvokedPrediction invoked /* = PredictUninvoked */) { | |||
| 9872 | Node pn; | |||
| 9873 | MOZ_TRY_VAR(pn, assignExpr(inHandling, yieldHandling, tripledotHandling,do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , tripledotHandling, possibleError, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pn) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 9874 | possibleError, invoked))do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , tripledotHandling, possibleError, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pn) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9875 | ||||
| 9876 | bool matched; | |||
| 9877 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 9878 | TokenStream::SlashIsRegExp)) { | |||
| 9879 | return errorResult(); | |||
| 9880 | } | |||
| 9881 | if (!matched) { | |||
| 9882 | return pn; | |||
| 9883 | } | |||
| 9884 | ||||
| 9885 | ListNodeType seq; | |||
| 9886 | MOZ_TRY_VAR(seq, handler_.newCommaExpressionList(pn))do { auto mozTryVarTempResult_ = (handler_.newCommaExpressionList (pn)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()) , 0))) { return mozTryVarTempResult_.propagateErr(); } (seq) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9887 | while (true) { | |||
| 9888 | // Trailing comma before the closing parenthesis is valid in an arrow | |||
| 9889 | // function parameters list: `(a, b, ) => body`. Check if we are | |||
| 9890 | // directly under CoverParenthesizedExpressionAndArrowParameterList, | |||
| 9891 | // and the next two tokens are closing parenthesis and arrow. If all | |||
| 9892 | // are present allow the trailing comma. | |||
| 9893 | if (tripledotHandling == TripledotAllowed) { | |||
| 9894 | TokenKind tt; | |||
| 9895 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 9896 | return errorResult(); | |||
| 9897 | } | |||
| 9898 | ||||
| 9899 | if (tt == TokenKind::RightParen) { | |||
| 9900 | tokenStream.consumeKnownToken(TokenKind::RightParen, | |||
| 9901 | TokenStream::SlashIsRegExp); | |||
| 9902 | ||||
| 9903 | if (!tokenStream.peekToken(&tt)) { | |||
| 9904 | return errorResult(); | |||
| 9905 | } | |||
| 9906 | if (tt != TokenKind::Arrow) { | |||
| 9907 | error(JSMSG_UNEXPECTED_TOKEN, "expression", | |||
| 9908 | TokenKindToDesc(TokenKind::RightParen)); | |||
| 9909 | return errorResult(); | |||
| 9910 | } | |||
| 9911 | ||||
| 9912 | anyChars.ungetToken(); // put back right paren | |||
| 9913 | break; | |||
| 9914 | } | |||
| 9915 | } | |||
| 9916 | ||||
| 9917 | // Additional calls to assignExpr should not reuse the possibleError | |||
| 9918 | // which had been passed into the function. Otherwise we would lose | |||
| 9919 | // information needed to determine whether or not we're dealing with | |||
| 9920 | // a non-recoverable situation. | |||
| 9921 | PossibleError possibleErrorInner(*this); | |||
| 9922 | MOZ_TRY_VAR(pn, assignExpr(inHandling, yieldHandling, tripledotHandling,do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , tripledotHandling, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pn) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 9923 | &possibleErrorInner))do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , tripledotHandling, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pn) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 9924 | ||||
| 9925 | if (!possibleError) { | |||
| 9926 | // Report any pending expression error. | |||
| 9927 | if (!possibleErrorInner.checkForExpressionError()) { | |||
| 9928 | return errorResult(); | |||
| 9929 | } | |||
| 9930 | } else { | |||
| 9931 | possibleErrorInner.transferErrorsTo(possibleError); | |||
| 9932 | } | |||
| 9933 | ||||
| 9934 | handler_.addList(seq, pn); | |||
| 9935 | ||||
| 9936 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 9937 | TokenStream::SlashIsRegExp)) { | |||
| 9938 | return errorResult(); | |||
| 9939 | } | |||
| 9940 | if (!matched) { | |||
| 9941 | break; | |||
| 9942 | } | |||
| 9943 | } | |||
| 9944 | return seq; | |||
| 9945 | } | |||
| 9946 | ||||
| 9947 | static ParseNodeKind BinaryOpTokenKindToParseNodeKind(TokenKind tok) { | |||
| 9948 | MOZ_ASSERT(TokenKindIsBinaryOp(tok))do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsBinaryOp(tok))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(TokenKindIsBinaryOp(tok)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("TokenKindIsBinaryOp(tok)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9948); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsBinaryOp(tok)" ")"); do { *((volatile int*)__null) = 9948; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9949 | return ParseNodeKind(size_t(ParseNodeKind::BinOpFirst) + | |||
| 9950 | (size_t(tok) - size_t(TokenKind::BinOpFirst))); | |||
| 9951 | } | |||
| 9952 | ||||
| 9953 | // This list must be kept in the same order in several places: | |||
| 9954 | // - The binary operators in ParseNode.h , | |||
| 9955 | // - the binary operators in TokenKind.h | |||
| 9956 | // - the JSOp code list in BytecodeEmitter.cpp | |||
| 9957 | static const int PrecedenceTable[] = { | |||
| 9958 | 1, /* ParseNodeKind::Coalesce */ | |||
| 9959 | 2, /* ParseNodeKind::Or */ | |||
| 9960 | 3, /* ParseNodeKind::And */ | |||
| 9961 | 4, /* ParseNodeKind::BitOr */ | |||
| 9962 | 5, /* ParseNodeKind::BitXor */ | |||
| 9963 | 6, /* ParseNodeKind::BitAnd */ | |||
| 9964 | 7, /* ParseNodeKind::StrictEq */ | |||
| 9965 | 7, /* ParseNodeKind::Eq */ | |||
| 9966 | 7, /* ParseNodeKind::StrictNe */ | |||
| 9967 | 7, /* ParseNodeKind::Ne */ | |||
| 9968 | 8, /* ParseNodeKind::Lt */ | |||
| 9969 | 8, /* ParseNodeKind::Le */ | |||
| 9970 | 8, /* ParseNodeKind::Gt */ | |||
| 9971 | 8, /* ParseNodeKind::Ge */ | |||
| 9972 | 8, /* ParseNodeKind::InstanceOf */ | |||
| 9973 | 8, /* ParseNodeKind::In */ | |||
| 9974 | 8, /* ParseNodeKind::PrivateIn */ | |||
| 9975 | 9, /* ParseNodeKind::Lsh */ | |||
| 9976 | 9, /* ParseNodeKind::Rsh */ | |||
| 9977 | 9, /* ParseNodeKind::Ursh */ | |||
| 9978 | 10, /* ParseNodeKind::Add */ | |||
| 9979 | 10, /* ParseNodeKind::Sub */ | |||
| 9980 | 11, /* ParseNodeKind::Star */ | |||
| 9981 | 11, /* ParseNodeKind::Div */ | |||
| 9982 | 11, /* ParseNodeKind::Mod */ | |||
| 9983 | 12 /* ParseNodeKind::Pow */ | |||
| 9984 | }; | |||
| 9985 | ||||
| 9986 | static const int PRECEDENCE_CLASSES = 12; | |||
| 9987 | ||||
| 9988 | static int Precedence(ParseNodeKind pnk) { | |||
| 9989 | // Everything binds tighter than ParseNodeKind::Limit, because we want | |||
| 9990 | // to reduce all nodes to a single node when we reach a token that is not | |||
| 9991 | // another binary operator. | |||
| 9992 | if (pnk == ParseNodeKind::Limit) { | |||
| 9993 | return 0; | |||
| 9994 | } | |||
| 9995 | ||||
| 9996 | MOZ_ASSERT(pnk >= ParseNodeKind::BinOpFirst)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pnk >= ParseNodeKind::BinOpFirst)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pnk >= ParseNodeKind::BinOpFirst ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "pnk >= ParseNodeKind::BinOpFirst", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9996); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pnk >= ParseNodeKind::BinOpFirst" ")"); do { *((volatile int*)__null) = 9996; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9997 | MOZ_ASSERT(pnk <= ParseNodeKind::BinOpLast)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pnk <= ParseNodeKind::BinOpLast)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pnk <= ParseNodeKind::BinOpLast ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "pnk <= ParseNodeKind::BinOpLast", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 9997); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pnk <= ParseNodeKind::BinOpLast" ")"); do { *((volatile int*)__null) = 9997; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 9998 | return PrecedenceTable[size_t(pnk) - size_t(ParseNodeKind::BinOpFirst)]; | |||
| 9999 | } | |||
| 10000 | ||||
| 10001 | enum class EnforcedParentheses : uint8_t { CoalesceExpr, AndOrExpr, None }; | |||
| 10002 | ||||
| 10003 | template <class ParseHandler, typename Unit> | |||
| 10004 | MOZ_ALWAYS_INLINEinline typename ParseHandler::NodeResult | |||
| 10005 | GeneralParser<ParseHandler, Unit>::orExpr(InHandling inHandling, | |||
| 10006 | YieldHandling yieldHandling, | |||
| 10007 | TripledotHandling tripledotHandling, | |||
| 10008 | PossibleError* possibleError, | |||
| 10009 | InvokedPrediction invoked) { | |||
| 10010 | // Shift-reduce parser for the binary operator part of the JS expression | |||
| 10011 | // syntax. | |||
| 10012 | ||||
| 10013 | // Conceptually there's just one stack, a stack of pairs (lhs, op). | |||
| 10014 | // It's implemented using two separate arrays, though. | |||
| 10015 | Node nodeStack[PRECEDENCE_CLASSES]; | |||
| 10016 | ParseNodeKind kindStack[PRECEDENCE_CLASSES]; | |||
| 10017 | int depth = 0; | |||
| 10018 | Node pn; | |||
| 10019 | EnforcedParentheses unparenthesizedExpression = EnforcedParentheses::None; | |||
| 10020 | for (;;) { | |||
| 10021 | MOZ_TRY_VAR(do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, tripledotHandling , possibleError, invoked, PrivateNameHandling::PrivateNameAllowed )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (pn) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 10022 | pn, unaryExpr(yieldHandling, tripledotHandling, possibleError, invoked,do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, tripledotHandling , possibleError, invoked, PrivateNameHandling::PrivateNameAllowed )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (pn) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 10023 | PrivateNameHandling::PrivateNameAllowed))do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, tripledotHandling , possibleError, invoked, PrivateNameHandling::PrivateNameAllowed )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (pn) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10024 | ||||
| 10025 | // If a binary operator follows, consume it and compute the | |||
| 10026 | // corresponding operator. | |||
| 10027 | TokenKind tok; | |||
| 10028 | if (!tokenStream.getToken(&tok)) { | |||
| 10029 | return errorResult(); | |||
| 10030 | } | |||
| 10031 | ||||
| 10032 | // Ensure that if we have a private name lhs we are legally constructing a | |||
| 10033 | // `#x in obj` expessions: | |||
| 10034 | if (handler_.isPrivateName(pn)) { | |||
| 10035 | if (tok != TokenKind::In || inHandling != InAllowed) { | |||
| 10036 | error(JSMSG_ILLEGAL_PRIVATE_NAME); | |||
| 10037 | return errorResult(); | |||
| 10038 | } | |||
| 10039 | } | |||
| 10040 | ||||
| 10041 | ParseNodeKind pnk; | |||
| 10042 | if (tok == TokenKind::In ? inHandling == InAllowed | |||
| 10043 | : TokenKindIsBinaryOp(tok)) { | |||
| 10044 | // We're definitely not in a destructuring context, so report any | |||
| 10045 | // pending expression error now. | |||
| 10046 | if (possibleError && !possibleError->checkForExpressionError()) { | |||
| 10047 | return errorResult(); | |||
| 10048 | } | |||
| 10049 | ||||
| 10050 | bool isErgonomicBrandCheck = false; | |||
| 10051 | switch (tok) { | |||
| 10052 | // Report an error for unary expressions on the LHS of **. | |||
| 10053 | case TokenKind::Pow: | |||
| 10054 | if (handler_.isUnparenthesizedUnaryExpression(pn)) { | |||
| 10055 | error(JSMSG_BAD_POW_LEFTSIDE); | |||
| 10056 | return errorResult(); | |||
| 10057 | } | |||
| 10058 | break; | |||
| 10059 | ||||
| 10060 | case TokenKind::Or: | |||
| 10061 | case TokenKind::And: | |||
| 10062 | // In the case that the `??` is on the left hand side of the | |||
| 10063 | // expression: Disallow Mixing of ?? and other logical operators (|| | |||
| 10064 | // and &&) unless one expression is parenthesized | |||
| 10065 | if (unparenthesizedExpression == EnforcedParentheses::CoalesceExpr) { | |||
| 10066 | error(JSMSG_BAD_COALESCE_MIXING); | |||
| 10067 | return errorResult(); | |||
| 10068 | } | |||
| 10069 | // If we have not detected a mixing error at this point, record that | |||
| 10070 | // we have an unparenthesized expression, in case we have one later. | |||
| 10071 | unparenthesizedExpression = EnforcedParentheses::AndOrExpr; | |||
| 10072 | break; | |||
| 10073 | ||||
| 10074 | case TokenKind::Coalesce: | |||
| 10075 | if (unparenthesizedExpression == EnforcedParentheses::AndOrExpr) { | |||
| 10076 | error(JSMSG_BAD_COALESCE_MIXING); | |||
| 10077 | return errorResult(); | |||
| 10078 | } | |||
| 10079 | // If we have not detected a mixing error at this point, record that | |||
| 10080 | // we have an unparenthesized expression, in case we have one later. | |||
| 10081 | unparenthesizedExpression = EnforcedParentheses::CoalesceExpr; | |||
| 10082 | break; | |||
| 10083 | ||||
| 10084 | case TokenKind::In: | |||
| 10085 | // if the LHS is a private name, and the operator is In, | |||
| 10086 | // ensure we're construcing an ergonomic brand check of | |||
| 10087 | // '#x in y', rather than having a higher precedence operator | |||
| 10088 | // like + cause a different reduction, such as | |||
| 10089 | // 1 + #x in y. | |||
| 10090 | if (handler_.isPrivateName(pn)) { | |||
| 10091 | if (depth > 0 && Precedence(kindStack[depth - 1]) >= | |||
| 10092 | Precedence(ParseNodeKind::InExpr)) { | |||
| 10093 | error(JSMSG_INVALID_PRIVATE_NAME_PRECEDENCE); | |||
| 10094 | return errorResult(); | |||
| 10095 | } | |||
| 10096 | ||||
| 10097 | isErgonomicBrandCheck = true; | |||
| 10098 | } | |||
| 10099 | break; | |||
| 10100 | ||||
| 10101 | default: | |||
| 10102 | // do nothing in other cases | |||
| 10103 | break; | |||
| 10104 | } | |||
| 10105 | ||||
| 10106 | if (isErgonomicBrandCheck) { | |||
| 10107 | pnk = ParseNodeKind::PrivateInExpr; | |||
| 10108 | } else { | |||
| 10109 | pnk = BinaryOpTokenKindToParseNodeKind(tok); | |||
| 10110 | } | |||
| 10111 | ||||
| 10112 | } else { | |||
| 10113 | tok = TokenKind::Eof; | |||
| 10114 | pnk = ParseNodeKind::Limit; | |||
| 10115 | } | |||
| 10116 | ||||
| 10117 | // From this point on, destructuring defaults are definitely an error. | |||
| 10118 | possibleError = nullptr; | |||
| 10119 | ||||
| 10120 | // If pnk has precedence less than or equal to another operator on the | |||
| 10121 | // stack, reduce. This combines nodes on the stack until we form the | |||
| 10122 | // actual lhs of pnk. | |||
| 10123 | // | |||
| 10124 | // The >= in this condition works because it is appendOrCreateList's | |||
| 10125 | // job to decide if the operator in question is left- or | |||
| 10126 | // right-associative, and build the corresponding tree. | |||
| 10127 | while (depth > 0 && Precedence(kindStack[depth - 1]) >= Precedence(pnk)) { | |||
| 10128 | depth--; | |||
| 10129 | ParseNodeKind combiningPnk = kindStack[depth]; | |||
| 10130 | MOZ_TRY_VAR(pn, handler_.appendOrCreateList(combiningPnk,do { auto mozTryVarTempResult_ = (handler_.appendOrCreateList (combiningPnk, nodeStack[depth], pn, pc_)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pn) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10131 | nodeStack[depth], pn, pc_))do { auto mozTryVarTempResult_ = (handler_.appendOrCreateList (combiningPnk, nodeStack[depth], pn, pc_)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (pn) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10132 | } | |||
| 10133 | ||||
| 10134 | if (pnk == ParseNodeKind::Limit) { | |||
| 10135 | break; | |||
| 10136 | } | |||
| 10137 | ||||
| 10138 | nodeStack[depth] = pn; | |||
| 10139 | kindStack[depth] = pnk; | |||
| 10140 | depth++; | |||
| 10141 | MOZ_ASSERT(depth <= PRECEDENCE_CLASSES)do { static_assert( mozilla::detail::AssertionConditionType< decltype(depth <= PRECEDENCE_CLASSES)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(depth <= PRECEDENCE_CLASSES ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "depth <= PRECEDENCE_CLASSES", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10141); AnnotateMozCrashReason("MOZ_ASSERT" "(" "depth <= PRECEDENCE_CLASSES" ")"); do { *((volatile int*)__null) = 10141; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10142 | } | |||
| 10143 | ||||
| 10144 | anyChars.ungetToken(); | |||
| 10145 | ||||
| 10146 | // Had the next token been a Div, we would have consumed it. So there's no | |||
| 10147 | // ambiguity if we later (after ASI) re-get this token with SlashIsRegExp. | |||
| 10148 | anyChars.allowGettingNextTokenWithSlashIsRegExp(); | |||
| 10149 | ||||
| 10150 | MOZ_ASSERT(depth == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(depth == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(depth == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("depth == 0", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10150); AnnotateMozCrashReason("MOZ_ASSERT" "(" "depth == 0" ")"); do { *((volatile int*)__null) = 10150; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10151 | return pn; | |||
| 10152 | } | |||
| 10153 | ||||
| 10154 | template <class ParseHandler, typename Unit> | |||
| 10155 | MOZ_ALWAYS_INLINEinline typename ParseHandler::NodeResult | |||
| 10156 | GeneralParser<ParseHandler, Unit>::condExpr(InHandling inHandling, | |||
| 10157 | YieldHandling yieldHandling, | |||
| 10158 | TripledotHandling tripledotHandling, | |||
| 10159 | PossibleError* possibleError, | |||
| 10160 | InvokedPrediction invoked) { | |||
| 10161 | Node condition; | |||
| 10162 | MOZ_TRY_VAR(condition, orExpr(inHandling, yieldHandling, tripledotHandling,do { auto mozTryVarTempResult_ = (orExpr(inHandling, yieldHandling , tripledotHandling, possibleError, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (condition) = mozTryVarTempResult_.unwrap( ); } while (0) | |||
| 10163 | possibleError, invoked))do { auto mozTryVarTempResult_ = (orExpr(inHandling, yieldHandling , tripledotHandling, possibleError, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (condition) = mozTryVarTempResult_.unwrap( ); } while (0); | |||
| 10164 | ||||
| 10165 | bool matched; | |||
| 10166 | if (!tokenStream.matchToken(&matched, TokenKind::Hook, | |||
| 10167 | TokenStream::SlashIsInvalid)) { | |||
| 10168 | return errorResult(); | |||
| 10169 | } | |||
| 10170 | if (!matched) { | |||
| 10171 | return condition; | |||
| 10172 | } | |||
| 10173 | ||||
| 10174 | Node thenExpr; | |||
| 10175 | MOZ_TRY_VAR(thenExpr,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (thenExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10176 | assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (thenExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10177 | ||||
| 10178 | if (!mustMatchToken(TokenKind::Colon, JSMSG_COLON_IN_COND)) { | |||
| 10179 | return errorResult(); | |||
| 10180 | } | |||
| 10181 | ||||
| 10182 | Node elseExpr; | |||
| 10183 | MOZ_TRY_VAR(elseExpr,do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (elseExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10184 | assignExpr(inHandling, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (elseExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10185 | ||||
| 10186 | return handler_.newConditional(condition, thenExpr, elseExpr); | |||
| 10187 | } | |||
| 10188 | ||||
| 10189 | template <class ParseHandler, typename Unit> | |||
| 10190 | typename ParseHandler::NodeResult GeneralParser<ParseHandler, Unit>::assignExpr( | |||
| 10191 | InHandling inHandling, YieldHandling yieldHandling, | |||
| 10192 | TripledotHandling tripledotHandling, | |||
| 10193 | PossibleError* possibleError /* = nullptr */, | |||
| 10194 | InvokedPrediction invoked /* = PredictUninvoked */) { | |||
| 10195 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 10196 | if (!recursion.check(this->fc_)) { | |||
| 10197 | return errorResult(); | |||
| 10198 | } | |||
| 10199 | ||||
| 10200 | // It's very common at this point to have a "detectably simple" expression, | |||
| 10201 | // i.e. a name/number/string token followed by one of the following tokens | |||
| 10202 | // that obviously isn't part of an expression: , ; : ) ] } | |||
| 10203 | // | |||
| 10204 | // (In Parsemark this happens 81.4% of the time; in code with large | |||
| 10205 | // numeric arrays, such as some Kraken benchmarks, it happens more often.) | |||
| 10206 | // | |||
| 10207 | // In such cases, we can avoid the full expression parsing route through | |||
| 10208 | // assignExpr(), condExpr(), orExpr(), unaryExpr(), memberExpr(), and | |||
| 10209 | // primaryExpr(). | |||
| 10210 | ||||
| 10211 | TokenKind firstToken; | |||
| 10212 | if (!tokenStream.getToken(&firstToken, TokenStream::SlashIsRegExp)) { | |||
| 10213 | return errorResult(); | |||
| 10214 | } | |||
| 10215 | ||||
| 10216 | TokenPos exprPos = pos(); | |||
| 10217 | ||||
| 10218 | bool endsExpr; | |||
| 10219 | ||||
| 10220 | // This only handles identifiers that *never* have special meaning anywhere | |||
| 10221 | // in the language. Contextual keywords, reserved words in strict mode, | |||
| 10222 | // and other hard cases are handled outside this fast path. | |||
| 10223 | if (firstToken == TokenKind::Name) { | |||
| 10224 | if (!tokenStream.nextTokenEndsExpr(&endsExpr)) { | |||
| 10225 | return errorResult(); | |||
| 10226 | } | |||
| 10227 | if (endsExpr) { | |||
| 10228 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
| 10229 | if (!name) { | |||
| 10230 | return errorResult(); | |||
| 10231 | } | |||
| 10232 | ||||
| 10233 | return identifierReference(name); | |||
| 10234 | } | |||
| 10235 | } | |||
| 10236 | ||||
| 10237 | if (firstToken == TokenKind::Number) { | |||
| 10238 | if (!tokenStream.nextTokenEndsExpr(&endsExpr)) { | |||
| 10239 | return errorResult(); | |||
| 10240 | } | |||
| 10241 | if (endsExpr) { | |||
| 10242 | return newNumber(anyChars.currentToken()); | |||
| 10243 | } | |||
| 10244 | } | |||
| 10245 | ||||
| 10246 | if (firstToken == TokenKind::String) { | |||
| 10247 | if (!tokenStream.nextTokenEndsExpr(&endsExpr)) { | |||
| 10248 | return errorResult(); | |||
| 10249 | } | |||
| 10250 | if (endsExpr) { | |||
| 10251 | return stringLiteral(); | |||
| 10252 | } | |||
| 10253 | } | |||
| 10254 | ||||
| 10255 | if (firstToken == TokenKind::Yield && yieldExpressionsSupported()) { | |||
| 10256 | return yieldExpression(inHandling); | |||
| 10257 | } | |||
| 10258 | ||||
| 10259 | bool maybeAsyncArrow = false; | |||
| 10260 | if (firstToken == TokenKind::Async) { | |||
| 10261 | TokenKind nextSameLine = TokenKind::Eof; | |||
| 10262 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
| 10263 | return errorResult(); | |||
| 10264 | } | |||
| 10265 | ||||
| 10266 | if (TokenKindIsPossibleIdentifier(nextSameLine)) { | |||
| 10267 | maybeAsyncArrow = true; | |||
| 10268 | } | |||
| 10269 | } | |||
| 10270 | ||||
| 10271 | anyChars.ungetToken(); | |||
| 10272 | ||||
| 10273 | // Save the tokenizer state in case we find an arrow function and have to | |||
| 10274 | // rewind. | |||
| 10275 | Position start(tokenStream); | |||
| 10276 | auto ghostToken = this->compilationState_.getPosition(); | |||
| 10277 | ||||
| 10278 | PossibleError possibleErrorInner(*this); | |||
| 10279 | Node lhs; | |||
| 10280 | TokenKind tokenAfterLHS; | |||
| 10281 | bool isArrow; | |||
| 10282 | if (maybeAsyncArrow) { | |||
| 10283 | tokenStream.consumeKnownToken(TokenKind::Async, TokenStream::SlashIsRegExp); | |||
| 10284 | ||||
| 10285 | TokenKind tokenAfterAsync; | |||
| 10286 | if (!tokenStream.getToken(&tokenAfterAsync)) { | |||
| 10287 | return errorResult(); | |||
| 10288 | } | |||
| 10289 | MOZ_ASSERT(TokenKindIsPossibleIdentifier(tokenAfterAsync))do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifier(tokenAfterAsync))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(TokenKindIsPossibleIdentifier(tokenAfterAsync)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("TokenKindIsPossibleIdentifier(tokenAfterAsync)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10289); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifier(tokenAfterAsync)" ")"); do { *((volatile int*)__null) = 10289; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10290 | ||||
| 10291 | // Check yield validity here. | |||
| 10292 | TaggedParserAtomIndex name = bindingIdentifier(yieldHandling); | |||
| 10293 | if (!name) { | |||
| 10294 | return errorResult(); | |||
| 10295 | } | |||
| 10296 | ||||
| 10297 | if (!tokenStream.peekToken(&tokenAfterLHS, TokenStream::SlashIsRegExp)) { | |||
| 10298 | return errorResult(); | |||
| 10299 | } | |||
| 10300 | ||||
| 10301 | isArrow = tokenAfterLHS == TokenKind::Arrow; | |||
| 10302 | ||||
| 10303 | // |async [no LineTerminator] of| without being followed by => is only | |||
| 10304 | // possible in for-await-of loops, e.g. |for await (async of [])|. Pretend | |||
| 10305 | // the |async| token was parsed an identifier reference and then proceed | |||
| 10306 | // with the rest of this function. | |||
| 10307 | if (!isArrow) { | |||
| 10308 | anyChars.ungetToken(); // unget the binding identifier | |||
| 10309 | ||||
| 10310 | // The next token is guaranteed to never be a Div (, because it's an | |||
| 10311 | // identifier), so it's okay to re-get the token with SlashIsRegExp. | |||
| 10312 | anyChars.allowGettingNextTokenWithSlashIsRegExp(); | |||
| 10313 | ||||
| 10314 | TaggedParserAtomIndex asyncName = identifierReference(yieldHandling); | |||
| 10315 | if (!asyncName) { | |||
| 10316 | return errorResult(); | |||
| 10317 | } | |||
| 10318 | ||||
| 10319 | MOZ_TRY_VAR(lhs, identifierReference(asyncName))do { auto mozTryVarTempResult_ = (identifierReference(asyncName )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10320 | } | |||
| 10321 | } else { | |||
| 10322 | MOZ_TRY_VAR(lhs, condExpr(inHandling, yieldHandling, tripledotHandling,do { auto mozTryVarTempResult_ = (condExpr(inHandling, yieldHandling , tripledotHandling, &possibleErrorInner, invoked)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 10323 | &possibleErrorInner, invoked))do { auto mozTryVarTempResult_ = (condExpr(inHandling, yieldHandling , tripledotHandling, &possibleErrorInner, invoked)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10324 | ||||
| 10325 | // Use SlashIsRegExp here because the ConditionalExpression parsed above | |||
| 10326 | // could be the entirety of this AssignmentExpression, and then ASI | |||
| 10327 | // permits this token to be a regular expression. | |||
| 10328 | if (!tokenStream.peekToken(&tokenAfterLHS, TokenStream::SlashIsRegExp)) { | |||
| 10329 | return errorResult(); | |||
| 10330 | } | |||
| 10331 | ||||
| 10332 | isArrow = tokenAfterLHS == TokenKind::Arrow; | |||
| 10333 | } | |||
| 10334 | ||||
| 10335 | if (isArrow) { | |||
| 10336 | // Rewind to reparse as an arrow function. | |||
| 10337 | // | |||
| 10338 | // Note: We do not call CompilationState::rewind here because parsing | |||
| 10339 | // during delazification will see the same rewind and need the same sequence | |||
| 10340 | // of inner functions to skip over. | |||
| 10341 | // Instead, we mark inner functions as "ghost". | |||
| 10342 | // | |||
| 10343 | // See GHOST_FUNCTION in FunctionFlags.h for more details. | |||
| 10344 | tokenStream.rewind(start); | |||
| 10345 | this->compilationState_.markGhost(ghostToken); | |||
| 10346 | ||||
| 10347 | TokenKind next; | |||
| 10348 | if (!tokenStream.getToken(&next, TokenStream::SlashIsRegExp)) { | |||
| 10349 | return errorResult(); | |||
| 10350 | } | |||
| 10351 | TokenPos startPos = pos(); | |||
| 10352 | uint32_t toStringStart = startPos.begin; | |||
| 10353 | anyChars.ungetToken(); | |||
| 10354 | ||||
| 10355 | FunctionAsyncKind asyncKind = FunctionAsyncKind::SyncFunction; | |||
| 10356 | ||||
| 10357 | if (next == TokenKind::Async) { | |||
| 10358 | tokenStream.consumeKnownToken(next, TokenStream::SlashIsRegExp); | |||
| 10359 | ||||
| 10360 | TokenKind nextSameLine = TokenKind::Eof; | |||
| 10361 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
| 10362 | return errorResult(); | |||
| 10363 | } | |||
| 10364 | ||||
| 10365 | // The AsyncArrowFunction production are | |||
| 10366 | // async [no LineTerminator here] AsyncArrowBindingIdentifier ... | |||
| 10367 | // async [no LineTerminator here] ArrowFormalParameters ... | |||
| 10368 | if (TokenKindIsPossibleIdentifier(nextSameLine) || | |||
| 10369 | nextSameLine == TokenKind::LeftParen) { | |||
| 10370 | asyncKind = FunctionAsyncKind::AsyncFunction; | |||
| 10371 | } else { | |||
| 10372 | anyChars.ungetToken(); | |||
| 10373 | } | |||
| 10374 | } | |||
| 10375 | ||||
| 10376 | FunctionSyntaxKind syntaxKind = FunctionSyntaxKind::Arrow; | |||
| 10377 | FunctionNodeType funNode; | |||
| 10378 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, startPos))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , startPos)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10379 | ||||
| 10380 | return functionDefinition(funNode, toStringStart, inHandling, yieldHandling, | |||
| 10381 | TaggedParserAtomIndex::null(), syntaxKind, | |||
| 10382 | GeneratorKind::NotGenerator, asyncKind); | |||
| 10383 | } | |||
| 10384 | ||||
| 10385 | MOZ_ALWAYS_TRUE(do { if ((__builtin_expect(!!(tokenStream.getToken(&tokenAfterLHS , TokenStream::SlashIsRegExp)), 1))) { } else { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(false)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "tokenStream.getToken(&tokenAfterLHS, TokenStream::SlashIsRegExp)" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10386); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "tokenStream.getToken(&tokenAfterLHS, TokenStream::SlashIsRegExp)" ")"); do { *((volatile int*)__null) = 10386; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); } } while (false) | |||
| 10386 | tokenStream.getToken(&tokenAfterLHS, TokenStream::SlashIsRegExp))do { if ((__builtin_expect(!!(tokenStream.getToken(&tokenAfterLHS , TokenStream::SlashIsRegExp)), 1))) { } else { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(false)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "tokenStream.getToken(&tokenAfterLHS, TokenStream::SlashIsRegExp)" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10386); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "tokenStream.getToken(&tokenAfterLHS, TokenStream::SlashIsRegExp)" ")"); do { *((volatile int*)__null) = 10386; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); } } while (false); | |||
| 10387 | ||||
| 10388 | ParseNodeKind kind; | |||
| 10389 | switch (tokenAfterLHS) { | |||
| 10390 | case TokenKind::Assign: | |||
| 10391 | kind = ParseNodeKind::AssignExpr; | |||
| 10392 | break; | |||
| 10393 | case TokenKind::AddAssign: | |||
| 10394 | kind = ParseNodeKind::AddAssignExpr; | |||
| 10395 | break; | |||
| 10396 | case TokenKind::SubAssign: | |||
| 10397 | kind = ParseNodeKind::SubAssignExpr; | |||
| 10398 | break; | |||
| 10399 | case TokenKind::CoalesceAssign: | |||
| 10400 | kind = ParseNodeKind::CoalesceAssignExpr; | |||
| 10401 | break; | |||
| 10402 | case TokenKind::OrAssign: | |||
| 10403 | kind = ParseNodeKind::OrAssignExpr; | |||
| 10404 | break; | |||
| 10405 | case TokenKind::AndAssign: | |||
| 10406 | kind = ParseNodeKind::AndAssignExpr; | |||
| 10407 | break; | |||
| 10408 | case TokenKind::BitOrAssign: | |||
| 10409 | kind = ParseNodeKind::BitOrAssignExpr; | |||
| 10410 | break; | |||
| 10411 | case TokenKind::BitXorAssign: | |||
| 10412 | kind = ParseNodeKind::BitXorAssignExpr; | |||
| 10413 | break; | |||
| 10414 | case TokenKind::BitAndAssign: | |||
| 10415 | kind = ParseNodeKind::BitAndAssignExpr; | |||
| 10416 | break; | |||
| 10417 | case TokenKind::LshAssign: | |||
| 10418 | kind = ParseNodeKind::LshAssignExpr; | |||
| 10419 | break; | |||
| 10420 | case TokenKind::RshAssign: | |||
| 10421 | kind = ParseNodeKind::RshAssignExpr; | |||
| 10422 | break; | |||
| 10423 | case TokenKind::UrshAssign: | |||
| 10424 | kind = ParseNodeKind::UrshAssignExpr; | |||
| 10425 | break; | |||
| 10426 | case TokenKind::MulAssign: | |||
| 10427 | kind = ParseNodeKind::MulAssignExpr; | |||
| 10428 | break; | |||
| 10429 | case TokenKind::DivAssign: | |||
| 10430 | kind = ParseNodeKind::DivAssignExpr; | |||
| 10431 | break; | |||
| 10432 | case TokenKind::ModAssign: | |||
| 10433 | kind = ParseNodeKind::ModAssignExpr; | |||
| 10434 | break; | |||
| 10435 | case TokenKind::PowAssign: | |||
| 10436 | kind = ParseNodeKind::PowAssignExpr; | |||
| 10437 | break; | |||
| 10438 | ||||
| 10439 | default: | |||
| 10440 | MOZ_ASSERT(!anyChars.isCurrentTokenAssignment())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!anyChars.isCurrentTokenAssignment())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!anyChars.isCurrentTokenAssignment ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!anyChars.isCurrentTokenAssignment()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10440); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!anyChars.isCurrentTokenAssignment()" ")"); do { *((volatile int*)__null) = 10440; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10441 | if (!possibleError) { | |||
| 10442 | if (!possibleErrorInner.checkForExpressionError()) { | |||
| 10443 | return errorResult(); | |||
| 10444 | } | |||
| 10445 | } else { | |||
| 10446 | possibleErrorInner.transferErrorsTo(possibleError); | |||
| 10447 | } | |||
| 10448 | ||||
| 10449 | anyChars.ungetToken(); | |||
| 10450 | return lhs; | |||
| 10451 | } | |||
| 10452 | ||||
| 10453 | // Verify the left-hand side expression doesn't have a forbidden form. | |||
| 10454 | if (handler_.isUnparenthesizedDestructuringPattern(lhs)) { | |||
| 10455 | if (kind != ParseNodeKind::AssignExpr) { | |||
| 10456 | error(JSMSG_BAD_DESTRUCT_ASS); | |||
| 10457 | return errorResult(); | |||
| 10458 | } | |||
| 10459 | ||||
| 10460 | if (!possibleErrorInner.checkForDestructuringErrorOrWarning()) { | |||
| 10461 | return errorResult(); | |||
| 10462 | } | |||
| 10463 | } else if (handler_.isName(lhs)) { | |||
| 10464 | if (const char* chars = nameIsArgumentsOrEval(lhs)) { | |||
| 10465 | // |chars| is "arguments" or "eval" here. | |||
| 10466 | if (!strictModeErrorAt(exprPos.begin, JSMSG_BAD_STRICT_ASSIGN, chars)) { | |||
| 10467 | return errorResult(); | |||
| 10468 | } | |||
| 10469 | } | |||
| 10470 | } else if (handler_.isArgumentsLength(lhs)) { | |||
| 10471 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
| 10472 | } else if (handler_.isPropertyOrPrivateMemberAccess(lhs)) { | |||
| 10473 | // Permitted: no additional testing/fixup needed. | |||
| 10474 | } else if (handler_.isFunctionCall(lhs)) { | |||
| 10475 | // We don't have to worry about backward compatibility issues with the new | |||
| 10476 | // compound assignment operators, so we always throw here. Also that way we | |||
| 10477 | // don't have to worry if |f() &&= expr| should always throw an error or | |||
| 10478 | // only if |f()| returns true. | |||
| 10479 | if (kind == ParseNodeKind::CoalesceAssignExpr || | |||
| 10480 | kind == ParseNodeKind::OrAssignExpr || | |||
| 10481 | kind == ParseNodeKind::AndAssignExpr) { | |||
| 10482 | errorAt(exprPos.begin, JSMSG_BAD_LEFTSIDE_OF_ASS); | |||
| 10483 | return errorResult(); | |||
| 10484 | } | |||
| 10485 | ||||
| 10486 | if (!strictModeErrorAt(exprPos.begin, JSMSG_BAD_LEFTSIDE_OF_ASS)) { | |||
| 10487 | return errorResult(); | |||
| 10488 | } | |||
| 10489 | ||||
| 10490 | if (possibleError) { | |||
| 10491 | possibleError->setPendingDestructuringErrorAt(exprPos, | |||
| 10492 | JSMSG_BAD_DESTRUCT_TARGET); | |||
| 10493 | } | |||
| 10494 | } else { | |||
| 10495 | errorAt(exprPos.begin, JSMSG_BAD_LEFTSIDE_OF_ASS); | |||
| 10496 | return errorResult(); | |||
| 10497 | } | |||
| 10498 | ||||
| 10499 | if (!possibleErrorInner.checkForExpressionError()) { | |||
| 10500 | return errorResult(); | |||
| 10501 | } | |||
| 10502 | ||||
| 10503 | Node rhs; | |||
| 10504 | MOZ_TRY_VAR(rhs, assignExpr(inHandling, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(inHandling, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (rhs) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10505 | ||||
| 10506 | return handler_.newAssignment(kind, lhs, rhs); | |||
| 10507 | } | |||
| 10508 | ||||
| 10509 | template <class ParseHandler> | |||
| 10510 | const char* PerHandlerParser<ParseHandler>::nameIsArgumentsOrEval(Node node) { | |||
| 10511 | MOZ_ASSERT(handler_.isName(node),do { static_assert( mozilla::detail::AssertionConditionType< decltype(handler_.isName(node))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(handler_.isName(node)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("handler_.isName(node)" " (" "must only call this function on known names" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10512); AnnotateMozCrashReason("MOZ_ASSERT" "(" "handler_.isName(node)" ") (" "must only call this function on known names" ")"); do { *((volatile int*)__null) = 10512; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 10512 | "must only call this function on known names")do { static_assert( mozilla::detail::AssertionConditionType< decltype(handler_.isName(node))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(handler_.isName(node)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("handler_.isName(node)" " (" "must only call this function on known names" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10512); AnnotateMozCrashReason("MOZ_ASSERT" "(" "handler_.isName(node)" ") (" "must only call this function on known names" ")"); do { *((volatile int*)__null) = 10512; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10513 | ||||
| 10514 | if (handler_.isEvalName(node)) { | |||
| 10515 | return "eval"; | |||
| 10516 | } | |||
| 10517 | if (handler_.isArgumentsName(node)) { | |||
| 10518 | return "arguments"; | |||
| 10519 | } | |||
| 10520 | return nullptr; | |||
| 10521 | } | |||
| 10522 | ||||
| 10523 | template <class ParseHandler, typename Unit> | |||
| 10524 | bool GeneralParser<ParseHandler, Unit>::checkIncDecOperand( | |||
| 10525 | Node operand, uint32_t operandOffset) { | |||
| 10526 | if (handler_.isName(operand)) { | |||
| 10527 | if (const char* chars = nameIsArgumentsOrEval(operand)) { | |||
| 10528 | if (!strictModeErrorAt(operandOffset, JSMSG_BAD_STRICT_ASSIGN, chars)) { | |||
| 10529 | return false; | |||
| 10530 | } | |||
| 10531 | } | |||
| 10532 | } else if (handler_.isArgumentsLength(operand)) { | |||
| 10533 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
| 10534 | } else if (handler_.isPropertyOrPrivateMemberAccess(operand)) { | |||
| 10535 | // Permitted: no additional testing/fixup needed. | |||
| 10536 | } else if (handler_.isFunctionCall(operand)) { | |||
| 10537 | // Assignment to function calls is forbidden in ES6. We're still | |||
| 10538 | // somewhat concerned about sites using this in dead code, so forbid it | |||
| 10539 | // only in strict mode code. | |||
| 10540 | if (!strictModeErrorAt(operandOffset, JSMSG_BAD_INCOP_OPERAND)) { | |||
| 10541 | return false; | |||
| 10542 | } | |||
| 10543 | } else { | |||
| 10544 | errorAt(operandOffset, JSMSG_BAD_INCOP_OPERAND); | |||
| 10545 | return false; | |||
| 10546 | } | |||
| 10547 | return true; | |||
| 10548 | } | |||
| 10549 | ||||
| 10550 | template <class ParseHandler, typename Unit> | |||
| 10551 | typename ParseHandler::UnaryNodeResult | |||
| 10552 | GeneralParser<ParseHandler, Unit>::unaryOpExpr(YieldHandling yieldHandling, | |||
| 10553 | ParseNodeKind kind, | |||
| 10554 | uint32_t begin) { | |||
| 10555 | Node kid; | |||
| 10556 | MOZ_TRY_VAR(kid, unaryExpr(yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, TripledotProhibited )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10557 | return handler_.newUnary(kind, begin, kid); | |||
| 10558 | } | |||
| 10559 | ||||
| 10560 | template <class ParseHandler, typename Unit> | |||
| 10561 | typename ParseHandler::NodeResult | |||
| 10562 | GeneralParser<ParseHandler, Unit>::optionalExpr( | |||
| 10563 | YieldHandling yieldHandling, TripledotHandling tripledotHandling, | |||
| 10564 | TokenKind tt, PossibleError* possibleError /* = nullptr */, | |||
| 10565 | InvokedPrediction invoked /* = PredictUninvoked */) { | |||
| 10566 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 10567 | if (!recursion.check(this->fc_)) { | |||
| 10568 | return errorResult(); | |||
| 10569 | } | |||
| 10570 | ||||
| 10571 | uint32_t begin = pos().begin; | |||
| 10572 | ||||
| 10573 | Node lhs; | |||
| 10574 | MOZ_TRY_VAR(lhs,do { auto mozTryVarTempResult_ = (memberExpr(yieldHandling, tripledotHandling , tt, true, possibleError, invoked)); if ((__builtin_expect(! !(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (lhs) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10575 | memberExpr(yieldHandling, tripledotHandling, tt,do { auto mozTryVarTempResult_ = (memberExpr(yieldHandling, tripledotHandling , tt, true, possibleError, invoked)); if ((__builtin_expect(! !(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (lhs) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10576 | /* allowCallSyntax = */ true, possibleError, invoked))do { auto mozTryVarTempResult_ = (memberExpr(yieldHandling, tripledotHandling , tt, true, possibleError, invoked)); if ((__builtin_expect(! !(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (lhs) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10577 | ||||
| 10578 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsDiv)) { | |||
| 10579 | return errorResult(); | |||
| 10580 | } | |||
| 10581 | ||||
| 10582 | if (tt != TokenKind::OptionalChain) { | |||
| 10583 | return lhs; | |||
| 10584 | } | |||
| 10585 | ||||
| 10586 | while (true) { | |||
| 10587 | if (!tokenStream.getToken(&tt)) { | |||
| 10588 | return errorResult(); | |||
| 10589 | } | |||
| 10590 | ||||
| 10591 | if (tt == TokenKind::Eof) { | |||
| 10592 | anyChars.ungetToken(); | |||
| 10593 | break; | |||
| 10594 | } | |||
| 10595 | ||||
| 10596 | Node nextMember; | |||
| 10597 | if (tt == TokenKind::OptionalChain) { | |||
| 10598 | if (!tokenStream.getToken(&tt)) { | |||
| 10599 | return errorResult(); | |||
| 10600 | } | |||
| 10601 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 10602 | MOZ_TRY_VAR(nextMember,do { auto mozTryVarTempResult_ = (memberPropertyAccess(lhs, OptionalKind ::Optional)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10603 | memberPropertyAccess(lhs, OptionalKind::Optional))do { auto mozTryVarTempResult_ = (memberPropertyAccess(lhs, OptionalKind ::Optional)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10604 | } else if (tt == TokenKind::PrivateName) { | |||
| 10605 | MOZ_TRY_VAR(nextMember,do { auto mozTryVarTempResult_ = (memberPrivateAccess(lhs, OptionalKind ::Optional)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10606 | memberPrivateAccess(lhs, OptionalKind::Optional))do { auto mozTryVarTempResult_ = (memberPrivateAccess(lhs, OptionalKind ::Optional)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10607 | } else if (tt == TokenKind::LeftBracket) { | |||
| 10608 | MOZ_TRY_VAR(nextMember, memberElemAccess(lhs, yieldHandling,do { auto mozTryVarTempResult_ = (memberElemAccess(lhs, yieldHandling , OptionalKind::Optional)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10609 | OptionalKind::Optional))do { auto mozTryVarTempResult_ = (memberElemAccess(lhs, yieldHandling , OptionalKind::Optional)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10610 | } else if (tt == TokenKind::LeftParen) { | |||
| 10611 | MOZ_TRY_VAR(nextMember,do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , possibleError, OptionalKind::Optional)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 10612 | memberCall(tt, lhs, yieldHandling, possibleError,do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , possibleError, OptionalKind::Optional)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap (); } while (0) | |||
| 10613 | OptionalKind::Optional))do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , possibleError, OptionalKind::Optional)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap (); } while (0); | |||
| 10614 | } else { | |||
| 10615 | error(JSMSG_NAME_AFTER_DOT); | |||
| 10616 | return errorResult(); | |||
| 10617 | } | |||
| 10618 | } else if (tt == TokenKind::Dot) { | |||
| 10619 | if (!tokenStream.getToken(&tt)) { | |||
| 10620 | return errorResult(); | |||
| 10621 | } | |||
| 10622 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 10623 | MOZ_TRY_VAR(nextMember, memberPropertyAccess(lhs))do { auto mozTryVarTempResult_ = (memberPropertyAccess(lhs)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10624 | } else if (tt == TokenKind::PrivateName) { | |||
| 10625 | MOZ_TRY_VAR(nextMember, memberPrivateAccess(lhs))do { auto mozTryVarTempResult_ = (memberPrivateAccess(lhs)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10626 | } else { | |||
| 10627 | error(JSMSG_NAME_AFTER_DOT); | |||
| 10628 | return errorResult(); | |||
| 10629 | } | |||
| 10630 | } else if (tt == TokenKind::LeftBracket) { | |||
| 10631 | MOZ_TRY_VAR(nextMember, memberElemAccess(lhs, yieldHandling))do { auto mozTryVarTempResult_ = (memberElemAccess(lhs, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10632 | } else if (tt == TokenKind::LeftParen) { | |||
| 10633 | MOZ_TRY_VAR(nextMember,do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , possibleError)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10634 | memberCall(tt, lhs, yieldHandling, possibleError))do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , possibleError)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10635 | } else if (tt == TokenKind::TemplateHead || | |||
| 10636 | tt == TokenKind::NoSubsTemplate) { | |||
| 10637 | error(JSMSG_BAD_OPTIONAL_TEMPLATE); | |||
| 10638 | return errorResult(); | |||
| 10639 | } else { | |||
| 10640 | anyChars.ungetToken(); | |||
| 10641 | break; | |||
| 10642 | } | |||
| 10643 | ||||
| 10644 | MOZ_ASSERT(nextMember)do { static_assert( mozilla::detail::AssertionConditionType< decltype(nextMember)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(nextMember))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("nextMember", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10644); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nextMember" ")"); do { *((volatile int*)__null) = 10644; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10645 | lhs = nextMember; | |||
| 10646 | } | |||
| 10647 | ||||
| 10648 | return handler_.newOptionalChain(begin, lhs); | |||
| 10649 | } | |||
| 10650 | ||||
| 10651 | template <class ParseHandler, typename Unit> | |||
| 10652 | typename ParseHandler::NodeResult GeneralParser<ParseHandler, Unit>::unaryExpr( | |||
| 10653 | YieldHandling yieldHandling, TripledotHandling tripledotHandling, | |||
| 10654 | PossibleError* possibleError /* = nullptr */, | |||
| 10655 | InvokedPrediction invoked /* = PredictUninvoked */, | |||
| 10656 | PrivateNameHandling privateNameHandling /* = PrivateNameProhibited */) { | |||
| 10657 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 10658 | if (!recursion.check(this->fc_)) { | |||
| 10659 | return errorResult(); | |||
| 10660 | } | |||
| 10661 | ||||
| 10662 | TokenKind tt; | |||
| 10663 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 10664 | return errorResult(); | |||
| 10665 | } | |||
| 10666 | uint32_t begin = pos().begin; | |||
| 10667 | switch (tt) { | |||
| 10668 | case TokenKind::Void: | |||
| 10669 | return unaryOpExpr(yieldHandling, ParseNodeKind::VoidExpr, begin); | |||
| 10670 | case TokenKind::Not: | |||
| 10671 | return unaryOpExpr(yieldHandling, ParseNodeKind::NotExpr, begin); | |||
| 10672 | case TokenKind::BitNot: | |||
| 10673 | return unaryOpExpr(yieldHandling, ParseNodeKind::BitNotExpr, begin); | |||
| 10674 | case TokenKind::Add: | |||
| 10675 | return unaryOpExpr(yieldHandling, ParseNodeKind::PosExpr, begin); | |||
| 10676 | case TokenKind::Sub: | |||
| 10677 | return unaryOpExpr(yieldHandling, ParseNodeKind::NegExpr, begin); | |||
| 10678 | ||||
| 10679 | case TokenKind::TypeOf: { | |||
| 10680 | // The |typeof| operator is specially parsed to distinguish its | |||
| 10681 | // application to a name, from its application to a non-name | |||
| 10682 | // expression: | |||
| 10683 | // | |||
| 10684 | // // Looks up the name, doesn't find it and so evaluates to | |||
| 10685 | // // "undefined". | |||
| 10686 | // assertEq(typeof nonExistentName, "undefined"); | |||
| 10687 | // | |||
| 10688 | // // Evaluates expression, triggering a runtime ReferenceError for | |||
| 10689 | // // the undefined name. | |||
| 10690 | // typeof (1, nonExistentName); | |||
| 10691 | Node kid; | |||
| 10692 | MOZ_TRY_VAR(kid, unaryExpr(yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, TripledotProhibited )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10693 | ||||
| 10694 | return handler_.newTypeof(begin, kid); | |||
| 10695 | } | |||
| 10696 | ||||
| 10697 | case TokenKind::Inc: | |||
| 10698 | case TokenKind::Dec: { | |||
| 10699 | TokenKind tt2; | |||
| 10700 | if (!tokenStream.getToken(&tt2, TokenStream::SlashIsRegExp)) { | |||
| 10701 | return errorResult(); | |||
| 10702 | } | |||
| 10703 | ||||
| 10704 | uint32_t operandOffset = pos().begin; | |||
| 10705 | Node operand; | |||
| 10706 | MOZ_TRY_VAR(operand,do { auto mozTryVarTempResult_ = (optionalExpr(yieldHandling, TripledotProhibited, tt2)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (operand) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10707 | optionalExpr(yieldHandling, TripledotProhibited, tt2))do { auto mozTryVarTempResult_ = (optionalExpr(yieldHandling, TripledotProhibited, tt2)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (operand) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10708 | if (!checkIncDecOperand(operand, operandOffset)) { | |||
| 10709 | return errorResult(); | |||
| 10710 | } | |||
| 10711 | ParseNodeKind pnk = (tt == TokenKind::Inc) | |||
| 10712 | ? ParseNodeKind::PreIncrementExpr | |||
| 10713 | : ParseNodeKind::PreDecrementExpr; | |||
| 10714 | return handler_.newUpdate(pnk, begin, operand); | |||
| 10715 | } | |||
| 10716 | case TokenKind::PrivateName: { | |||
| 10717 | if (privateNameHandling == PrivateNameHandling::PrivateNameAllowed) { | |||
| 10718 | TaggedParserAtomIndex field = anyChars.currentName(); | |||
| 10719 | return privateNameReference(field); | |||
| 10720 | } | |||
| 10721 | error(JSMSG_INVALID_PRIVATE_NAME_IN_UNARY_EXPR); | |||
| 10722 | return errorResult(); | |||
| 10723 | } | |||
| 10724 | ||||
| 10725 | case TokenKind::Delete: { | |||
| 10726 | uint32_t exprOffset; | |||
| 10727 | if (!tokenStream.peekOffset(&exprOffset, TokenStream::SlashIsRegExp)) { | |||
| 10728 | return errorResult(); | |||
| 10729 | } | |||
| 10730 | ||||
| 10731 | Node expr; | |||
| 10732 | MOZ_TRY_VAR(expr, unaryExpr(yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, TripledotProhibited )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (expr) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10733 | ||||
| 10734 | // Per spec, deleting most unary expressions is valid -- it simply | |||
| 10735 | // returns true -- except for two cases: | |||
| 10736 | // 1. `var x; ...; delete x` is a syntax error in strict mode. | |||
| 10737 | // 2. Private fields cannot be deleted. | |||
| 10738 | if (handler_.isName(expr)) { | |||
| 10739 | if (!strictModeErrorAt(exprOffset, JSMSG_DEPRECATED_DELETE_OPERAND)) { | |||
| 10740 | return errorResult(); | |||
| 10741 | } | |||
| 10742 | ||||
| 10743 | pc_->sc()->setBindingsAccessedDynamically(); | |||
| 10744 | } | |||
| 10745 | ||||
| 10746 | if (handler_.isPrivateMemberAccess(expr)) { | |||
| 10747 | errorAt(exprOffset, JSMSG_PRIVATE_DELETE); | |||
| 10748 | return errorResult(); | |||
| 10749 | } | |||
| 10750 | ||||
| 10751 | return handler_.newDelete(begin, expr); | |||
| 10752 | } | |||
| 10753 | case TokenKind::Await: { | |||
| 10754 | // If we encounter an await in a module, mark it as async. | |||
| 10755 | if (!pc_->isAsync() && pc_->sc()->isModule()) { | |||
| 10756 | if (!options().topLevelAwait) { | |||
| 10757 | error(JSMSG_TOP_LEVEL_AWAIT_NOT_SUPPORTED); | |||
| 10758 | return errorResult(); | |||
| 10759 | } | |||
| 10760 | pc_->sc()->asModuleContext()->setIsAsync(); | |||
| 10761 | MOZ_ASSERT(pc_->isAsync())do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->isAsync())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pc_->isAsync()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->isAsync()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10761); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->isAsync()" ")"); do { *((volatile int*)__null) = 10761; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10762 | } | |||
| 10763 | ||||
| 10764 | if (pc_->isAsync()) { | |||
| 10765 | if (inParametersOfAsyncFunction()) { | |||
| 10766 | error(JSMSG_AWAIT_IN_PARAMETER); | |||
| 10767 | return errorResult(); | |||
| 10768 | } | |||
| 10769 | Node kid; | |||
| 10770 | MOZ_TRY_VAR(kid, unaryExpr(yieldHandling, tripledotHandling,do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, tripledotHandling , possibleError, invoked)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10771 | possibleError, invoked))do { auto mozTryVarTempResult_ = (unaryExpr(yieldHandling, tripledotHandling , possibleError, invoked)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (kid) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10772 | pc_->lastAwaitOffset = begin; | |||
| 10773 | return handler_.newAwaitExpression(begin, kid); | |||
| 10774 | } | |||
| 10775 | } | |||
| 10776 | ||||
| 10777 | [[fallthrough]]; | |||
| 10778 | ||||
| 10779 | default: { | |||
| 10780 | Node expr; | |||
| 10781 | MOZ_TRY_VAR(expr, optionalExpr(yieldHandling, tripledotHandling, tt,do { auto mozTryVarTempResult_ = (optionalExpr(yieldHandling, tripledotHandling, tt, possibleError, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (expr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10782 | possibleError, invoked))do { auto mozTryVarTempResult_ = (optionalExpr(yieldHandling, tripledotHandling, tt, possibleError, invoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (expr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10783 | ||||
| 10784 | /* Don't look across a newline boundary for a postfix incop. */ | |||
| 10785 | if (!tokenStream.peekTokenSameLine(&tt)) { | |||
| 10786 | return errorResult(); | |||
| 10787 | } | |||
| 10788 | ||||
| 10789 | if (tt != TokenKind::Inc && tt != TokenKind::Dec) { | |||
| 10790 | return expr; | |||
| 10791 | } | |||
| 10792 | ||||
| 10793 | tokenStream.consumeKnownToken(tt); | |||
| 10794 | if (!checkIncDecOperand(expr, begin)) { | |||
| 10795 | return errorResult(); | |||
| 10796 | } | |||
| 10797 | ||||
| 10798 | ParseNodeKind pnk = (tt == TokenKind::Inc) | |||
| 10799 | ? ParseNodeKind::PostIncrementExpr | |||
| 10800 | : ParseNodeKind::PostDecrementExpr; | |||
| 10801 | return handler_.newUpdate(pnk, begin, expr); | |||
| 10802 | } | |||
| 10803 | } | |||
| 10804 | } | |||
| 10805 | ||||
| 10806 | template <class ParseHandler, typename Unit> | |||
| 10807 | typename ParseHandler::NodeResult | |||
| 10808 | GeneralParser<ParseHandler, Unit>::assignExprWithoutYieldOrAwait( | |||
| 10809 | YieldHandling yieldHandling) { | |||
| 10810 | uint32_t startYieldOffset = pc_->lastYieldOffset; | |||
| 10811 | uint32_t startAwaitOffset = pc_->lastAwaitOffset; | |||
| 10812 | ||||
| 10813 | Node res; | |||
| 10814 | MOZ_TRY_VAR(res, assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (res) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10815 | ||||
| 10816 | if (pc_->lastYieldOffset != startYieldOffset) { | |||
| 10817 | errorAt(pc_->lastYieldOffset, JSMSG_YIELD_IN_PARAMETER); | |||
| 10818 | return errorResult(); | |||
| 10819 | } | |||
| 10820 | if (pc_->lastAwaitOffset != startAwaitOffset) { | |||
| 10821 | errorAt(pc_->lastAwaitOffset, JSMSG_AWAIT_IN_PARAMETER); | |||
| 10822 | return errorResult(); | |||
| 10823 | } | |||
| 10824 | return res; | |||
| 10825 | } | |||
| 10826 | ||||
| 10827 | template <class ParseHandler, typename Unit> | |||
| 10828 | typename ParseHandler::ListNodeResult | |||
| 10829 | GeneralParser<ParseHandler, Unit>::argumentList( | |||
| 10830 | YieldHandling yieldHandling, bool* isSpread, | |||
| 10831 | PossibleError* possibleError /* = nullptr */) { | |||
| 10832 | ListNodeType argsList; | |||
| 10833 | MOZ_TRY_VAR(argsList, handler_.newArguments(pos()))do { auto mozTryVarTempResult_ = (handler_.newArguments(pos() )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (argsList ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10834 | ||||
| 10835 | bool matched; | |||
| 10836 | if (!tokenStream.matchToken(&matched, TokenKind::RightParen, | |||
| 10837 | TokenStream::SlashIsRegExp)) { | |||
| 10838 | return errorResult(); | |||
| 10839 | } | |||
| 10840 | if (matched) { | |||
| 10841 | handler_.setEndPosition(argsList, pos().end); | |||
| 10842 | return argsList; | |||
| 10843 | } | |||
| 10844 | ||||
| 10845 | while (true) { | |||
| 10846 | bool spread = false; | |||
| 10847 | uint32_t begin = 0; | |||
| 10848 | if (!tokenStream.matchToken(&matched, TokenKind::TripleDot, | |||
| 10849 | TokenStream::SlashIsRegExp)) { | |||
| 10850 | return errorResult(); | |||
| 10851 | } | |||
| 10852 | if (matched) { | |||
| 10853 | spread = true; | |||
| 10854 | begin = pos().begin; | |||
| 10855 | *isSpread = true; | |||
| 10856 | } | |||
| 10857 | ||||
| 10858 | Node argNode; | |||
| 10859 | MOZ_TRY_VAR(argNode, assignExpr(InAllowed, yieldHandling,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, possibleError)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (argNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10860 | TripledotProhibited, possibleError))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, possibleError)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (argNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10861 | if (spread) { | |||
| 10862 | MOZ_TRY_VAR(argNode, handler_.newSpread(begin, argNode))do { auto mozTryVarTempResult_ = (handler_.newSpread(begin, argNode )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (argNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10863 | } | |||
| 10864 | ||||
| 10865 | handler_.addList(argsList, argNode); | |||
| 10866 | ||||
| 10867 | bool matched; | |||
| 10868 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 10869 | TokenStream::SlashIsRegExp)) { | |||
| 10870 | return errorResult(); | |||
| 10871 | } | |||
| 10872 | if (!matched) { | |||
| 10873 | break; | |||
| 10874 | } | |||
| 10875 | ||||
| 10876 | TokenKind tt; | |||
| 10877 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 10878 | return errorResult(); | |||
| 10879 | } | |||
| 10880 | if (tt == TokenKind::RightParen) { | |||
| 10881 | break; | |||
| 10882 | } | |||
| 10883 | } | |||
| 10884 | ||||
| 10885 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_ARGS)) { | |||
| 10886 | return errorResult(); | |||
| 10887 | } | |||
| 10888 | ||||
| 10889 | handler_.setEndPosition(argsList, pos().end); | |||
| 10890 | return argsList; | |||
| 10891 | } | |||
| 10892 | ||||
| 10893 | bool ParserBase::checkAndMarkSuperScope() { | |||
| 10894 | if (!pc_->sc()->allowSuperProperty()) { | |||
| 10895 | return false; | |||
| 10896 | } | |||
| 10897 | ||||
| 10898 | pc_->setSuperScopeNeedsHomeObject(); | |||
| 10899 | return true; | |||
| 10900 | } | |||
| 10901 | ||||
| 10902 | template <class ParseHandler, typename Unit> | |||
| 10903 | bool GeneralParser<ParseHandler, Unit>::computeErrorMetadata( | |||
| 10904 | ErrorMetadata* err, const ErrorReportMixin::ErrorOffset& offset) const { | |||
| 10905 | if (offset.is<ErrorReportMixin::Current>()) { | |||
| 10906 | return tokenStream.computeErrorMetadata(err, AsVariant(pos().begin)); | |||
| 10907 | } | |||
| 10908 | return tokenStream.computeErrorMetadata(err, offset); | |||
| 10909 | } | |||
| 10910 | ||||
| 10911 | template <class ParseHandler, typename Unit> | |||
| 10912 | typename ParseHandler::NodeResult GeneralParser<ParseHandler, Unit>::memberExpr( | |||
| 10913 | YieldHandling yieldHandling, TripledotHandling tripledotHandling, | |||
| 10914 | TokenKind tt, bool allowCallSyntax, PossibleError* possibleError, | |||
| 10915 | InvokedPrediction invoked) { | |||
| 10916 | MOZ_ASSERT(anyChars.isCurrentTokenType(tt))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(tt))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( tt)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(tt)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10916); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(tt)" ")"); do { *((volatile int*)__null) = 10916; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 10917 | ||||
| 10918 | Node lhs; | |||
| 10919 | ||||
| 10920 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 10921 | if (!recursion.check(this->fc_)) { | |||
| 10922 | return errorResult(); | |||
| 10923 | } | |||
| 10924 | ||||
| 10925 | /* Check for new expression first. */ | |||
| 10926 | if (tt == TokenKind::New) { | |||
| 10927 | uint32_t newBegin = pos().begin; | |||
| 10928 | // Make sure this wasn't a |new.target| in disguise. | |||
| 10929 | NewTargetNodeType newTarget; | |||
| 10930 | if (!tryNewTarget(&newTarget)) { | |||
| 10931 | return errorResult(); | |||
| 10932 | } | |||
| 10933 | if (newTarget) { | |||
| 10934 | lhs = newTarget; | |||
| 10935 | } else { | |||
| 10936 | // Gotten by tryNewTarget | |||
| 10937 | tt = anyChars.currentToken().type; | |||
| 10938 | Node ctorExpr; | |||
| 10939 | MOZ_TRY_VAR(ctorExpr,do { auto mozTryVarTempResult_ = (memberExpr(yieldHandling, TripledotProhibited , tt, false, nullptr, PredictInvoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (ctorExpr) = mozTryVarTempResult_.unwrap() ; } while (0) | |||
| 10940 | memberExpr(yieldHandling, TripledotProhibited, tt,do { auto mozTryVarTempResult_ = (memberExpr(yieldHandling, TripledotProhibited , tt, false, nullptr, PredictInvoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (ctorExpr) = mozTryVarTempResult_.unwrap() ; } while (0) | |||
| 10941 | /* allowCallSyntax = */ false,do { auto mozTryVarTempResult_ = (memberExpr(yieldHandling, TripledotProhibited , tt, false, nullptr, PredictInvoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (ctorExpr) = mozTryVarTempResult_.unwrap() ; } while (0) | |||
| 10942 | /* possibleError = */ nullptr, PredictInvoked))do { auto mozTryVarTempResult_ = (memberExpr(yieldHandling, TripledotProhibited , tt, false, nullptr, PredictInvoked)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (ctorExpr) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 10943 | ||||
| 10944 | // If we have encountered an optional chain, in the form of `new | |||
| 10945 | // ClassName?.()` then we need to throw, as this is disallowed by the | |||
| 10946 | // spec. | |||
| 10947 | bool optionalToken; | |||
| 10948 | if (!tokenStream.matchToken(&optionalToken, TokenKind::OptionalChain)) { | |||
| 10949 | return errorResult(); | |||
| 10950 | } | |||
| 10951 | if (optionalToken) { | |||
| 10952 | errorAt(newBegin, JSMSG_BAD_NEW_OPTIONAL); | |||
| 10953 | return errorResult(); | |||
| 10954 | } | |||
| 10955 | ||||
| 10956 | bool matched; | |||
| 10957 | if (!tokenStream.matchToken(&matched, TokenKind::LeftParen)) { | |||
| 10958 | return errorResult(); | |||
| 10959 | } | |||
| 10960 | ||||
| 10961 | bool isSpread = false; | |||
| 10962 | ListNodeType args; | |||
| 10963 | if (matched) { | |||
| 10964 | MOZ_TRY_VAR(args, argumentList(yieldHandling, &isSpread))do { auto mozTryVarTempResult_ = (argumentList(yieldHandling, &isSpread)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (args) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10965 | } else { | |||
| 10966 | MOZ_TRY_VAR(args, handler_.newArguments(pos()))do { auto mozTryVarTempResult_ = (handler_.newArguments(pos() )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (args) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10967 | } | |||
| 10968 | ||||
| 10969 | if (!args) { | |||
| 10970 | return errorResult(); | |||
| 10971 | } | |||
| 10972 | ||||
| 10973 | MOZ_TRY_VAR(do { auto mozTryVarTempResult_ = (handler_.newNewExpression(newBegin , ctorExpr, args, isSpread)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10974 | lhs, handler_.newNewExpression(newBegin, ctorExpr, args, isSpread))do { auto mozTryVarTempResult_ = (handler_.newNewExpression(newBegin , ctorExpr, args, isSpread)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10975 | } | |||
| 10976 | } else if (tt == TokenKind::Super) { | |||
| 10977 | NameNodeType thisName; | |||
| 10978 | MOZ_TRY_VAR(thisName, newThisName())do { auto mozTryVarTempResult_ = (newThisName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (thisName) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 10979 | MOZ_TRY_VAR(lhs, handler_.newSuperBase(thisName, pos()))do { auto mozTryVarTempResult_ = (handler_.newSuperBase(thisName , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10980 | } else if (tt == TokenKind::Import) { | |||
| 10981 | MOZ_TRY_VAR(lhs, importExpr(yieldHandling, allowCallSyntax))do { auto mozTryVarTempResult_ = (importExpr(yieldHandling, allowCallSyntax )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 10982 | } else { | |||
| 10983 | MOZ_TRY_VAR(lhs, primaryExpr(yieldHandling, tripledotHandling, tt,do { auto mozTryVarTempResult_ = (primaryExpr(yieldHandling, tripledotHandling , tt, possibleError, invoked)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 10984 | possibleError, invoked))do { auto mozTryVarTempResult_ = (primaryExpr(yieldHandling, tripledotHandling , tt, possibleError, invoked)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 10985 | } | |||
| 10986 | ||||
| 10987 | MOZ_ASSERT_IF(handler_.isSuperBase(lhs),do { if (handler_.isSuperBase(lhs)) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(anyChars.isCurrentTokenType (TokenKind::Super))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Super)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Super)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10988); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Super)" ")"); do { *((volatile int*)__null) = 10988; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); } } while (false) | |||
| 10988 | anyChars.isCurrentTokenType(TokenKind::Super))do { if (handler_.isSuperBase(lhs)) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(anyChars.isCurrentTokenType (TokenKind::Super))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( TokenKind::Super)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(TokenKind::Super)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 10988); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Super)" ")"); do { *((volatile int*)__null) = 10988; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); } } while (false); | |||
| 10989 | ||||
| 10990 | while (true) { | |||
| 10991 | if (!tokenStream.getToken(&tt)) { | |||
| 10992 | return errorResult(); | |||
| 10993 | } | |||
| 10994 | if (tt == TokenKind::Eof) { | |||
| 10995 | anyChars.ungetToken(); | |||
| 10996 | break; | |||
| 10997 | } | |||
| 10998 | ||||
| 10999 | Node nextMember; | |||
| 11000 | if (tt == TokenKind::Dot) { | |||
| 11001 | if (!tokenStream.getToken(&tt)) { | |||
| 11002 | return errorResult(); | |||
| 11003 | } | |||
| 11004 | ||||
| 11005 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 11006 | MOZ_TRY_VAR(nextMember, memberPropertyAccess(lhs))do { auto mozTryVarTempResult_ = (memberPropertyAccess(lhs)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11007 | } else if (tt == TokenKind::PrivateName) { | |||
| 11008 | MOZ_TRY_VAR(nextMember, memberPrivateAccess(lhs))do { auto mozTryVarTempResult_ = (memberPrivateAccess(lhs)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 11009 | } else { | |||
| 11010 | error(JSMSG_NAME_AFTER_DOT); | |||
| 11011 | return errorResult(); | |||
| 11012 | } | |||
| 11013 | } else if (tt == TokenKind::LeftBracket) { | |||
| 11014 | MOZ_TRY_VAR(nextMember, memberElemAccess(lhs, yieldHandling))do { auto mozTryVarTempResult_ = (memberElemAccess(lhs, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11015 | } else if ((allowCallSyntax && tt == TokenKind::LeftParen) || | |||
| 11016 | tt == TokenKind::TemplateHead || | |||
| 11017 | tt == TokenKind::NoSubsTemplate) { | |||
| 11018 | if (handler_.isSuperBase(lhs)) { | |||
| 11019 | if (!pc_->sc()->allowSuperCall()) { | |||
| 11020 | error(JSMSG_BAD_SUPERCALL); | |||
| 11021 | return errorResult(); | |||
| 11022 | } | |||
| 11023 | ||||
| 11024 | if (tt != TokenKind::LeftParen) { | |||
| 11025 | error(JSMSG_BAD_SUPER); | |||
| 11026 | return errorResult(); | |||
| 11027 | } | |||
| 11028 | ||||
| 11029 | MOZ_TRY_VAR(nextMember, memberSuperCall(lhs, yieldHandling))do { auto mozTryVarTempResult_ = (memberSuperCall(lhs, yieldHandling )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11030 | ||||
| 11031 | if (!noteUsedName( | |||
| 11032 | TaggedParserAtomIndex::WellKnown::dot_initializers_())) { | |||
| 11033 | return errorResult(); | |||
| 11034 | } | |||
| 11035 | #ifdef ENABLE_DECORATORS | |||
| 11036 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown:: | |||
| 11037 | dot_instanceExtraInitializers_())) { | |||
| 11038 | return null(); | |||
| 11039 | } | |||
| 11040 | #endif | |||
| 11041 | } else { | |||
| 11042 | MOZ_TRY_VAR(nextMember,do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , possibleError)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11043 | memberCall(tt, lhs, yieldHandling, possibleError))do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , possibleError)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11044 | } | |||
| 11045 | } else { | |||
| 11046 | anyChars.ungetToken(); | |||
| 11047 | if (handler_.isSuperBase(lhs)) { | |||
| 11048 | break; | |||
| 11049 | } | |||
| 11050 | return lhs; | |||
| 11051 | } | |||
| 11052 | ||||
| 11053 | lhs = nextMember; | |||
| 11054 | } | |||
| 11055 | ||||
| 11056 | if (handler_.isSuperBase(lhs)) { | |||
| 11057 | error(JSMSG_BAD_SUPER); | |||
| 11058 | return errorResult(); | |||
| 11059 | } | |||
| 11060 | ||||
| 11061 | return lhs; | |||
| 11062 | } | |||
| 11063 | ||||
| 11064 | template <class ParseHandler, typename Unit> | |||
| 11065 | typename ParseHandler::NodeResult | |||
| 11066 | GeneralParser<ParseHandler, Unit>::decoratorExpr(YieldHandling yieldHandling, | |||
| 11067 | TokenKind tt) { | |||
| 11068 | MOZ_ASSERT(anyChars.isCurrentTokenType(tt))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(tt))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( tt)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(tt)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11068); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(tt)" ")"); do { *((volatile int*)__null) = 11068; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11069 | ||||
| 11070 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 11071 | if (!recursion.check(this->fc_)) { | |||
| 11072 | return errorResult(); | |||
| 11073 | } | |||
| 11074 | ||||
| 11075 | if (tt == TokenKind::LeftParen) { | |||
| 11076 | // DecoratorParenthesizedExpression | |||
| 11077 | Node expr; | |||
| 11078 | MOZ_TRY_VAR(expr, exprInParens(InAllowed, yieldHandling, TripledotAllowed,do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotAllowed, nullptr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (expr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11079 | /* possibleError*/ nullptr))do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotAllowed, nullptr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (expr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11080 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_DECORATOR)) { | |||
| 11081 | return errorResult(); | |||
| 11082 | } | |||
| 11083 | ||||
| 11084 | return handler_.parenthesize(expr); | |||
| 11085 | } | |||
| 11086 | ||||
| 11087 | if (!TokenKindIsPossibleIdentifier(tt)) { | |||
| 11088 | error(JSMSG_DECORATOR_NAME_EXPECTED); | |||
| 11089 | return errorResult(); | |||
| 11090 | } | |||
| 11091 | ||||
| 11092 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
| 11093 | if (!name) { | |||
| 11094 | return errorResult(); | |||
| 11095 | } | |||
| 11096 | ||||
| 11097 | Node lhs; | |||
| 11098 | MOZ_TRY_VAR(lhs, identifierReference(name))do { auto mozTryVarTempResult_ = (identifierReference(name)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 11099 | ||||
| 11100 | while (true) { | |||
| 11101 | if (!tokenStream.getToken(&tt)) { | |||
| 11102 | return errorResult(); | |||
| 11103 | } | |||
| 11104 | if (tt == TokenKind::Eof) { | |||
| 11105 | anyChars.ungetToken(); | |||
| 11106 | break; | |||
| 11107 | } | |||
| 11108 | ||||
| 11109 | Node nextMember; | |||
| 11110 | if (tt == TokenKind::Dot) { | |||
| 11111 | if (!tokenStream.getToken(&tt)) { | |||
| 11112 | return errorResult(); | |||
| 11113 | } | |||
| 11114 | ||||
| 11115 | if (TokenKindIsPossibleIdentifierName(tt)) { | |||
| 11116 | MOZ_TRY_VAR(nextMember, memberPropertyAccess(lhs))do { auto mozTryVarTempResult_ = (memberPropertyAccess(lhs)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11117 | } else if (tt == TokenKind::PrivateName) { | |||
| 11118 | MOZ_TRY_VAR(nextMember, memberPrivateAccess(lhs))do { auto mozTryVarTempResult_ = (memberPrivateAccess(lhs)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 11119 | } else { | |||
| 11120 | error(JSMSG_NAME_AFTER_DOT); | |||
| 11121 | return errorResult(); | |||
| 11122 | } | |||
| 11123 | } else if (tt == TokenKind::LeftParen) { | |||
| 11124 | MOZ_TRY_VAR(nextMember, memberCall(tt, lhs, yieldHandling,do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , nullptr)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11125 | /* possibleError */ nullptr))do { auto mozTryVarTempResult_ = (memberCall(tt, lhs, yieldHandling , nullptr)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nextMember ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11126 | lhs = nextMember; | |||
| 11127 | // This is a `DecoratorCallExpression` and it's defined at the top level | |||
| 11128 | // of `Decorator`, no other `DecoratorMemberExpression` is allowed to | |||
| 11129 | // follow after the arguments. | |||
| 11130 | break; | |||
| 11131 | } else { | |||
| 11132 | anyChars.ungetToken(); | |||
| 11133 | break; | |||
| 11134 | } | |||
| 11135 | ||||
| 11136 | lhs = nextMember; | |||
| 11137 | } | |||
| 11138 | ||||
| 11139 | return lhs; | |||
| 11140 | } | |||
| 11141 | ||||
| 11142 | template <class ParseHandler> | |||
| 11143 | inline typename ParseHandler::NameNodeResult | |||
| 11144 | PerHandlerParser<ParseHandler>::newName(TaggedParserAtomIndex name) { | |||
| 11145 | return newName(name, pos()); | |||
| 11146 | } | |||
| 11147 | ||||
| 11148 | template <class ParseHandler> | |||
| 11149 | inline typename ParseHandler::NameNodeResult | |||
| 11150 | PerHandlerParser<ParseHandler>::newName(TaggedParserAtomIndex name, | |||
| 11151 | TokenPos pos) { | |||
| 11152 | if (name == TaggedParserAtomIndex::WellKnown::arguments()) { | |||
| 11153 | this->pc_->numberOfArgumentsNames++; | |||
| 11154 | } | |||
| 11155 | return handler_.newName(name, pos); | |||
| 11156 | } | |||
| 11157 | ||||
| 11158 | template <class ParseHandler> | |||
| 11159 | inline typename ParseHandler::NameNodeResult | |||
| 11160 | PerHandlerParser<ParseHandler>::newPrivateName(TaggedParserAtomIndex name) { | |||
| 11161 | return handler_.newPrivateName(name, pos()); | |||
| 11162 | } | |||
| 11163 | ||||
| 11164 | template <class ParseHandler, typename Unit> | |||
| 11165 | typename ParseHandler::NodeResult | |||
| 11166 | GeneralParser<ParseHandler, Unit>::memberPropertyAccess( | |||
| 11167 | Node lhs, OptionalKind optionalKind /* = OptionalKind::NonOptional */) { | |||
| 11168 | MOZ_ASSERT(TokenKindIsPossibleIdentifierName(anyChars.currentToken().type) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifierName(anyChars.currentToken ().type) || anyChars.currentToken().type == TokenKind::PrivateName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(TokenKindIsPossibleIdentifierName(anyChars.currentToken ().type) || anyChars.currentToken().type == TokenKind::PrivateName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "TokenKindIsPossibleIdentifierName(anyChars.currentToken().type) || anyChars.currentToken().type == TokenKind::PrivateName" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11169); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifierName(anyChars.currentToken().type) || anyChars.currentToken().type == TokenKind::PrivateName" ")"); do { *((volatile int*)__null) = 11169; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false) | |||
| 11169 | anyChars.currentToken().type == TokenKind::PrivateName)do { static_assert( mozilla::detail::AssertionConditionType< decltype(TokenKindIsPossibleIdentifierName(anyChars.currentToken ().type) || anyChars.currentToken().type == TokenKind::PrivateName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(TokenKindIsPossibleIdentifierName(anyChars.currentToken ().type) || anyChars.currentToken().type == TokenKind::PrivateName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "TokenKindIsPossibleIdentifierName(anyChars.currentToken().type) || anyChars.currentToken().type == TokenKind::PrivateName" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11169); AnnotateMozCrashReason("MOZ_ASSERT" "(" "TokenKindIsPossibleIdentifierName(anyChars.currentToken().type) || anyChars.currentToken().type == TokenKind::PrivateName" ")"); do { *((volatile int*)__null) = 11169; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11170 | TaggedParserAtomIndex field = anyChars.currentName(); | |||
| 11171 | if (handler_.isSuperBase(lhs) && !checkAndMarkSuperScope()) { | |||
| 11172 | error(JSMSG_BAD_SUPERPROP, "property"); | |||
| 11173 | return errorResult(); | |||
| 11174 | } | |||
| 11175 | ||||
| 11176 | NameNodeType name; | |||
| 11177 | MOZ_TRY_VAR(name, handler_.newPropertyName(field, pos()))do { auto mozTryVarTempResult_ = (handler_.newPropertyName(field , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (name ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11178 | ||||
| 11179 | if (optionalKind == OptionalKind::Optional) { | |||
| 11180 | MOZ_ASSERT(!handler_.isSuperBase(lhs))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!handler_.isSuperBase(lhs))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!handler_.isSuperBase(lhs))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!handler_.isSuperBase(lhs)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11180); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!handler_.isSuperBase(lhs)" ")"); do { *((volatile int*)__null) = 11180; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11181 | return handler_.newOptionalPropertyAccess(lhs, name); | |||
| 11182 | } | |||
| 11183 | ||||
| 11184 | if (handler_.isArgumentsName(lhs) && handler_.isLengthName(name)) { | |||
| 11185 | MOZ_ASSERT(pc_->numberOfArgumentsNames > 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pc_->numberOfArgumentsNames > 0)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(pc_->numberOfArgumentsNames > 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pc_->numberOfArgumentsNames > 0" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11185); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pc_->numberOfArgumentsNames > 0" ")"); do { *((volatile int*)__null) = 11185; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11186 | pc_->numberOfArgumentsNames--; | |||
| 11187 | // Currently when resuming Generators don't get their argument length set | |||
| 11188 | // in the interpreter frame (see InterpreterStack::resumeGeneratorCallFrame, | |||
| 11189 | // and its call to initCallFrame). | |||
| 11190 | if (pc_->isGeneratorOrAsync()) { | |||
| 11191 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
| 11192 | } | |||
| 11193 | return handler_.newArgumentsLength(lhs, name); | |||
| 11194 | } | |||
| 11195 | ||||
| 11196 | return handler_.newPropertyAccess(lhs, name); | |||
| 11197 | } | |||
| 11198 | ||||
| 11199 | template <class ParseHandler, typename Unit> | |||
| 11200 | typename ParseHandler::NodeResult | |||
| 11201 | GeneralParser<ParseHandler, Unit>::memberPrivateAccess( | |||
| 11202 | Node lhs, OptionalKind optionalKind /* = OptionalKind::NonOptional */) { | |||
| 11203 | MOZ_ASSERT(anyChars.currentToken().type == TokenKind::PrivateName)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.currentToken().type == TokenKind::PrivateName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.currentToken().type == TokenKind::PrivateName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "anyChars.currentToken().type == TokenKind::PrivateName", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11203); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.currentToken().type == TokenKind::PrivateName" ")"); do { *((volatile int*)__null) = 11203; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11204 | ||||
| 11205 | TaggedParserAtomIndex field = anyChars.currentName(); | |||
| 11206 | // Cannot access private fields on super. | |||
| 11207 | if (handler_.isSuperBase(lhs)) { | |||
| 11208 | error(JSMSG_BAD_SUPERPRIVATE); | |||
| 11209 | return errorResult(); | |||
| 11210 | } | |||
| 11211 | ||||
| 11212 | NameNodeType privateName; | |||
| 11213 | MOZ_TRY_VAR(privateName, privateNameReference(field))do { auto mozTryVarTempResult_ = (privateNameReference(field) ); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0) )) { return mozTryVarTempResult_.propagateErr(); } (privateName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11214 | ||||
| 11215 | if (optionalKind == OptionalKind::Optional) { | |||
| 11216 | MOZ_ASSERT(!handler_.isSuperBase(lhs))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!handler_.isSuperBase(lhs))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!handler_.isSuperBase(lhs))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!handler_.isSuperBase(lhs)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11216); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!handler_.isSuperBase(lhs)" ")"); do { *((volatile int*)__null) = 11216; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11217 | return handler_.newOptionalPrivateMemberAccess(lhs, privateName, pos().end); | |||
| 11218 | } | |||
| 11219 | return handler_.newPrivateMemberAccess(lhs, privateName, pos().end); | |||
| 11220 | } | |||
| 11221 | ||||
| 11222 | template <class ParseHandler, typename Unit> | |||
| 11223 | typename ParseHandler::NodeResult | |||
| 11224 | GeneralParser<ParseHandler, Unit>::memberElemAccess( | |||
| 11225 | Node lhs, YieldHandling yieldHandling, | |||
| 11226 | OptionalKind optionalKind /* = OptionalKind::NonOptional */) { | |||
| 11227 | MOZ_ASSERT(anyChars.currentToken().type == TokenKind::LeftBracket)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.currentToken().type == TokenKind::LeftBracket )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.currentToken().type == TokenKind::LeftBracket ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "anyChars.currentToken().type == TokenKind::LeftBracket", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11227); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.currentToken().type == TokenKind::LeftBracket" ")"); do { *((volatile int*)__null) = 11227; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11228 | Node propExpr; | |||
| 11229 | MOZ_TRY_VAR(propExpr, expr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (expr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11230 | ||||
| 11231 | if (!mustMatchToken(TokenKind::RightBracket, JSMSG_BRACKET_IN_INDEX)) { | |||
| 11232 | return errorResult(); | |||
| 11233 | } | |||
| 11234 | ||||
| 11235 | if (handler_.isSuperBase(lhs) && !checkAndMarkSuperScope()) { | |||
| 11236 | error(JSMSG_BAD_SUPERPROP, "member"); | |||
| 11237 | return errorResult(); | |||
| 11238 | } | |||
| 11239 | if (optionalKind == OptionalKind::Optional) { | |||
| 11240 | MOZ_ASSERT(!handler_.isSuperBase(lhs))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!handler_.isSuperBase(lhs))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!handler_.isSuperBase(lhs))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!handler_.isSuperBase(lhs)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11240); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!handler_.isSuperBase(lhs)" ")"); do { *((volatile int*)__null) = 11240; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11241 | return handler_.newOptionalPropertyByValue(lhs, propExpr, pos().end); | |||
| 11242 | } | |||
| 11243 | return handler_.newPropertyByValue(lhs, propExpr, pos().end); | |||
| 11244 | } | |||
| 11245 | ||||
| 11246 | template <class ParseHandler, typename Unit> | |||
| 11247 | typename ParseHandler::NodeResult | |||
| 11248 | GeneralParser<ParseHandler, Unit>::memberSuperCall( | |||
| 11249 | Node lhs, YieldHandling yieldHandling) { | |||
| 11250 | MOZ_ASSERT(anyChars.currentToken().type == TokenKind::LeftParen)do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.currentToken().type == TokenKind::LeftParen )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.currentToken().type == TokenKind::LeftParen ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "anyChars.currentToken().type == TokenKind::LeftParen", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11250); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.currentToken().type == TokenKind::LeftParen" ")"); do { *((volatile int*)__null) = 11250; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11251 | // Despite the fact that it's impossible to have |super()| in a | |||
| 11252 | // generator, we still inherit the yieldHandling of the | |||
| 11253 | // memberExpression, per spec. Curious. | |||
| 11254 | bool isSpread = false; | |||
| 11255 | ListNodeType args; | |||
| 11256 | MOZ_TRY_VAR(args, argumentList(yieldHandling, &isSpread))do { auto mozTryVarTempResult_ = (argumentList(yieldHandling, &isSpread)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (args) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11257 | ||||
| 11258 | CallNodeType superCall; | |||
| 11259 | MOZ_TRY_VAR(superCall, handler_.newSuperCall(lhs, args, isSpread))do { auto mozTryVarTempResult_ = (handler_.newSuperCall(lhs, args , isSpread)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (superCall ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11260 | ||||
| 11261 | // |super()| implicitly reads |new.target|. | |||
| 11262 | if (!noteUsedName(TaggedParserAtomIndex::WellKnown::dot_newTarget_())) { | |||
| 11263 | return errorResult(); | |||
| 11264 | } | |||
| 11265 | ||||
| 11266 | NameNodeType thisName; | |||
| 11267 | MOZ_TRY_VAR(thisName, newThisName())do { auto mozTryVarTempResult_ = (newThisName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (thisName) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 11268 | ||||
| 11269 | return handler_.newSetThis(thisName, superCall); | |||
| 11270 | } | |||
| 11271 | ||||
| 11272 | template <class ParseHandler, typename Unit> | |||
| 11273 | typename ParseHandler::NodeResult GeneralParser<ParseHandler, Unit>::memberCall( | |||
| 11274 | TokenKind tt, Node lhs, YieldHandling yieldHandling, | |||
| 11275 | PossibleError* possibleError /* = nullptr */, | |||
| 11276 | OptionalKind optionalKind /* = OptionalKind::NonOptional */) { | |||
| 11277 | if (options().selfHostingMode && | |||
| 11278 | (handler_.isPropertyOrPrivateMemberAccess(lhs) || | |||
| 11279 | handler_.isOptionalPropertyOrPrivateMemberAccess(lhs))) { | |||
| 11280 | error(JSMSG_SELFHOSTED_METHOD_CALL); | |||
| 11281 | return errorResult(); | |||
| 11282 | } | |||
| 11283 | ||||
| 11284 | MOZ_ASSERT(tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate" " (" "Unexpected token kind for member call" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11286); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate" ") (" "Unexpected token kind for member call" ")"); do { *(( volatile int*)__null) = 11286; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) | |||
| 11285 | tt == TokenKind::NoSubsTemplate,do { static_assert( mozilla::detail::AssertionConditionType< decltype(tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate" " (" "Unexpected token kind for member call" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11286); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate" ") (" "Unexpected token kind for member call" ")"); do { *(( volatile int*)__null) = 11286; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) | |||
| 11286 | "Unexpected token kind for member call")do { static_assert( mozilla::detail::AssertionConditionType< decltype(tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate" " (" "Unexpected token kind for member call" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11286); AnnotateMozCrashReason("MOZ_ASSERT" "(" "tt == TokenKind::LeftParen || tt == TokenKind::TemplateHead || tt == TokenKind::NoSubsTemplate" ") (" "Unexpected token kind for member call" ")"); do { *(( volatile int*)__null) = 11286; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); | |||
| 11287 | ||||
| 11288 | JSOp op = JSOp::Call; | |||
| 11289 | bool maybeAsyncArrow = false; | |||
| 11290 | if (tt == TokenKind::LeftParen && optionalKind == OptionalKind::NonOptional) { | |||
| 11291 | if (handler_.isAsyncKeyword(lhs)) { | |||
| 11292 | // |async (| can be the start of an async arrow | |||
| 11293 | // function, so we need to defer reporting possible | |||
| 11294 | // errors from destructuring syntax. To give better | |||
| 11295 | // error messages, we only allow the AsyncArrowHead | |||
| 11296 | // part of the CoverCallExpressionAndAsyncArrowHead | |||
| 11297 | // syntax when the initial name is "async". | |||
| 11298 | maybeAsyncArrow = true; | |||
| 11299 | } else if (handler_.isEvalName(lhs)) { | |||
| 11300 | // Select the right Eval op and flag pc_ as having a | |||
| 11301 | // direct eval. | |||
| 11302 | op = pc_->sc()->strict() ? JSOp::StrictEval : JSOp::Eval; | |||
| 11303 | pc_->sc()->setBindingsAccessedDynamically(); | |||
| 11304 | pc_->sc()->setHasDirectEval(); | |||
| 11305 | ||||
| 11306 | // In non-strict mode code, direct calls to eval can | |||
| 11307 | // add variables to the call object. | |||
| 11308 | if (pc_->isFunctionBox() && !pc_->sc()->strict()) { | |||
| 11309 | pc_->functionBox()->setFunHasExtensibleScope(); | |||
| 11310 | } | |||
| 11311 | ||||
| 11312 | // If we're in a method, mark the method as requiring | |||
| 11313 | // support for 'super', since direct eval code can use | |||
| 11314 | // it. (If we're not in a method, that's fine, so | |||
| 11315 | // ignore the return value.) | |||
| 11316 | checkAndMarkSuperScope(); | |||
| 11317 | } | |||
| 11318 | } | |||
| 11319 | ||||
| 11320 | if (tt == TokenKind::LeftParen) { | |||
| 11321 | bool isSpread = false; | |||
| 11322 | PossibleError* asyncPossibleError = | |||
| 11323 | maybeAsyncArrow ? possibleError : nullptr; | |||
| 11324 | ListNodeType args; | |||
| 11325 | MOZ_TRY_VAR(args,do { auto mozTryVarTempResult_ = (argumentList(yieldHandling, &isSpread, asyncPossibleError)); if ((__builtin_expect(! !(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (args) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11326 | argumentList(yieldHandling, &isSpread, asyncPossibleError))do { auto mozTryVarTempResult_ = (argumentList(yieldHandling, &isSpread, asyncPossibleError)); if ((__builtin_expect(! !(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (args) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11327 | if (isSpread) { | |||
| 11328 | if (op == JSOp::Eval) { | |||
| 11329 | op = JSOp::SpreadEval; | |||
| 11330 | } else if (op == JSOp::StrictEval) { | |||
| 11331 | op = JSOp::StrictSpreadEval; | |||
| 11332 | } else { | |||
| 11333 | op = JSOp::SpreadCall; | |||
| 11334 | } | |||
| 11335 | } | |||
| 11336 | ||||
| 11337 | if (optionalKind == OptionalKind::Optional) { | |||
| 11338 | return handler_.newOptionalCall(lhs, args, op); | |||
| 11339 | } | |||
| 11340 | return handler_.newCall(lhs, args, op); | |||
| 11341 | } | |||
| 11342 | ||||
| 11343 | ListNodeType args; | |||
| 11344 | MOZ_TRY_VAR(args, handler_.newArguments(pos()))do { auto mozTryVarTempResult_ = (handler_.newArguments(pos() )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (args) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 11345 | ||||
| 11346 | if (!taggedTemplate(yieldHandling, args, tt)) { | |||
| 11347 | return errorResult(); | |||
| 11348 | } | |||
| 11349 | ||||
| 11350 | if (optionalKind == OptionalKind::Optional) { | |||
| 11351 | error(JSMSG_BAD_OPTIONAL_TEMPLATE); | |||
| 11352 | return errorResult(); | |||
| 11353 | } | |||
| 11354 | ||||
| 11355 | return handler_.newTaggedTemplate(lhs, args, op); | |||
| 11356 | } | |||
| 11357 | ||||
| 11358 | template <class ParseHandler, typename Unit> | |||
| 11359 | bool GeneralParser<ParseHandler, Unit>::checkLabelOrIdentifierReference( | |||
| 11360 | TaggedParserAtomIndex ident, uint32_t offset, YieldHandling yieldHandling, | |||
| 11361 | TokenKind hint /* = TokenKind::Limit */) { | |||
| 11362 | TokenKind tt; | |||
| 11363 | if (hint == TokenKind::Limit) { | |||
| 11364 | tt = ReservedWordTokenKind(ident); | |||
| 11365 | } else { | |||
| 11366 | // All non-reserved word kinds are folded into TokenKind::Limit in | |||
| 11367 | // ReservedWordTokenKind and the following code. | |||
| 11368 | if (hint == TokenKind::Name || hint == TokenKind::PrivateName) { | |||
| 11369 | hint = TokenKind::Limit; | |||
| 11370 | } | |||
| 11371 | MOZ_ASSERT(hint == ReservedWordTokenKind(ident),do { static_assert( mozilla::detail::AssertionConditionType< decltype(hint == ReservedWordTokenKind(ident))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(hint == ReservedWordTokenKind (ident)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("hint == ReservedWordTokenKind(ident)" " (" "hint doesn't match actual token kind" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11372); AnnotateMozCrashReason("MOZ_ASSERT" "(" "hint == ReservedWordTokenKind(ident)" ") (" "hint doesn't match actual token kind" ")"); do { *((volatile int*)__null) = 11372; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 11372 | "hint doesn't match actual token kind")do { static_assert( mozilla::detail::AssertionConditionType< decltype(hint == ReservedWordTokenKind(ident))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(hint == ReservedWordTokenKind (ident)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("hint == ReservedWordTokenKind(ident)" " (" "hint doesn't match actual token kind" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11372); AnnotateMozCrashReason("MOZ_ASSERT" "(" "hint == ReservedWordTokenKind(ident)" ") (" "hint doesn't match actual token kind" ")"); do { *((volatile int*)__null) = 11372; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11373 | tt = hint; | |||
| 11374 | } | |||
| 11375 | ||||
| 11376 | if (!pc_->sc()->allowArguments() && | |||
| 11377 | ident == TaggedParserAtomIndex::WellKnown::arguments()) { | |||
| 11378 | error(JSMSG_BAD_ARGUMENTS); | |||
| 11379 | return false; | |||
| 11380 | } | |||
| 11381 | ||||
| 11382 | if (tt == TokenKind::Limit) { | |||
| 11383 | // Either TokenKind::Name or TokenKind::PrivateName | |||
| 11384 | return true; | |||
| 11385 | } | |||
| 11386 | if (TokenKindIsContextualKeyword(tt)) { | |||
| 11387 | if (tt == TokenKind::Yield) { | |||
| 11388 | if (yieldHandling == YieldIsKeyword) { | |||
| 11389 | errorAt(offset, JSMSG_RESERVED_ID, "yield"); | |||
| 11390 | return false; | |||
| 11391 | } | |||
| 11392 | if (pc_->sc()->strict()) { | |||
| 11393 | if (!strictModeErrorAt(offset, JSMSG_RESERVED_ID, "yield")) { | |||
| 11394 | return false; | |||
| 11395 | } | |||
| 11396 | } | |||
| 11397 | return true; | |||
| 11398 | } | |||
| 11399 | if (tt == TokenKind::Await) { | |||
| 11400 | if (awaitIsKeyword() || awaitIsDisallowed()) { | |||
| 11401 | errorAt(offset, JSMSG_RESERVED_ID, "await"); | |||
| 11402 | return false; | |||
| 11403 | } | |||
| 11404 | return true; | |||
| 11405 | } | |||
| 11406 | if (pc_->sc()->strict()) { | |||
| 11407 | if (tt == TokenKind::Let) { | |||
| 11408 | if (!strictModeErrorAt(offset, JSMSG_RESERVED_ID, "let")) { | |||
| 11409 | return false; | |||
| 11410 | } | |||
| 11411 | return true; | |||
| 11412 | } | |||
| 11413 | if (tt == TokenKind::Static) { | |||
| 11414 | if (!strictModeErrorAt(offset, JSMSG_RESERVED_ID, "static")) { | |||
| 11415 | return false; | |||
| 11416 | } | |||
| 11417 | return true; | |||
| 11418 | } | |||
| 11419 | } | |||
| 11420 | return true; | |||
| 11421 | } | |||
| 11422 | if (TokenKindIsStrictReservedWord(tt)) { | |||
| 11423 | if (pc_->sc()->strict()) { | |||
| 11424 | if (!strictModeErrorAt(offset, JSMSG_RESERVED_ID, | |||
| 11425 | ReservedWordToCharZ(tt))) { | |||
| 11426 | return false; | |||
| 11427 | } | |||
| 11428 | } | |||
| 11429 | return true; | |||
| 11430 | } | |||
| 11431 | if (TokenKindIsKeyword(tt) || TokenKindIsReservedWordLiteral(tt)) { | |||
| 11432 | errorAt(offset, JSMSG_INVALID_ID, ReservedWordToCharZ(tt)); | |||
| 11433 | return false; | |||
| 11434 | } | |||
| 11435 | if (TokenKindIsFutureReservedWord(tt)) { | |||
| 11436 | errorAt(offset, JSMSG_RESERVED_ID, ReservedWordToCharZ(tt)); | |||
| 11437 | return false; | |||
| 11438 | } | |||
| 11439 | MOZ_ASSERT_UNREACHABLE("Unexpected reserved word kind.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Unexpected reserved word kind." ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11439); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Unexpected reserved word kind." ")" ); do { *((volatile int*)__null) = 11439; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 11440 | return false; | |||
| 11441 | } | |||
| 11442 | ||||
| 11443 | template <class ParseHandler, typename Unit> | |||
| 11444 | bool GeneralParser<ParseHandler, Unit>::checkBindingIdentifier( | |||
| 11445 | TaggedParserAtomIndex ident, uint32_t offset, YieldHandling yieldHandling, | |||
| 11446 | TokenKind hint /* = TokenKind::Limit */) { | |||
| 11447 | if (pc_->sc()->strict()) { | |||
| 11448 | if (ident == TaggedParserAtomIndex::WellKnown::arguments()) { | |||
| 11449 | if (!strictModeErrorAt(offset, JSMSG_BAD_STRICT_ASSIGN, "arguments")) { | |||
| 11450 | return false; | |||
| 11451 | } | |||
| 11452 | return true; | |||
| 11453 | } | |||
| 11454 | ||||
| 11455 | if (ident == TaggedParserAtomIndex::WellKnown::eval()) { | |||
| 11456 | if (!strictModeErrorAt(offset, JSMSG_BAD_STRICT_ASSIGN, "eval")) { | |||
| 11457 | return false; | |||
| 11458 | } | |||
| 11459 | return true; | |||
| 11460 | } | |||
| 11461 | } | |||
| 11462 | ||||
| 11463 | return checkLabelOrIdentifierReference(ident, offset, yieldHandling, hint); | |||
| 11464 | } | |||
| 11465 | ||||
| 11466 | template <class ParseHandler, typename Unit> | |||
| 11467 | TaggedParserAtomIndex | |||
| 11468 | GeneralParser<ParseHandler, Unit>::labelOrIdentifierReference( | |||
| 11469 | YieldHandling yieldHandling) { | |||
| 11470 | // ES 2017 draft 12.1.1. | |||
| 11471 | // StringValue of IdentifierName normalizes any Unicode escape sequences | |||
| 11472 | // in IdentifierName hence such escapes cannot be used to write an | |||
| 11473 | // Identifier whose code point sequence is the same as a ReservedWord. | |||
| 11474 | // | |||
| 11475 | // Use const ParserName* instead of TokenKind to reflect the normalization. | |||
| 11476 | ||||
| 11477 | // Unless the name contains escapes, we can reuse the current TokenKind | |||
| 11478 | // to determine if the name is a restricted identifier. | |||
| 11479 | TokenKind hint = !anyChars.currentNameHasEscapes(this->parserAtoms()) | |||
| 11480 | ? anyChars.currentToken().type | |||
| 11481 | : TokenKind::Limit; | |||
| 11482 | TaggedParserAtomIndex ident = anyChars.currentName(); | |||
| 11483 | if (!checkLabelOrIdentifierReference(ident, pos().begin, yieldHandling, | |||
| 11484 | hint)) { | |||
| 11485 | return TaggedParserAtomIndex::null(); | |||
| 11486 | } | |||
| 11487 | return ident; | |||
| 11488 | } | |||
| 11489 | ||||
| 11490 | template <class ParseHandler, typename Unit> | |||
| 11491 | TaggedParserAtomIndex GeneralParser<ParseHandler, Unit>::bindingIdentifier( | |||
| 11492 | YieldHandling yieldHandling) { | |||
| 11493 | TokenKind hint = !anyChars.currentNameHasEscapes(this->parserAtoms()) | |||
| 11494 | ? anyChars.currentToken().type | |||
| 11495 | : TokenKind::Limit; | |||
| 11496 | TaggedParserAtomIndex ident = anyChars.currentName(); | |||
| 11497 | if (!checkBindingIdentifier(ident, pos().begin, yieldHandling, hint)) { | |||
| 11498 | return TaggedParserAtomIndex::null(); | |||
| 11499 | } | |||
| 11500 | return ident; | |||
| 11501 | } | |||
| 11502 | ||||
| 11503 | template <class ParseHandler> | |||
| 11504 | typename ParseHandler::NameNodeResult | |||
| 11505 | PerHandlerParser<ParseHandler>::identifierReference( | |||
| 11506 | TaggedParserAtomIndex name) { | |||
| 11507 | NameNodeType id; | |||
| 11508 | MOZ_TRY_VAR(id, newName(name))do { auto mozTryVarTempResult_ = (newName(name)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (id) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11509 | ||||
| 11510 | if (!noteUsedName(name)) { | |||
| 11511 | return errorResult(); | |||
| 11512 | } | |||
| 11513 | ||||
| 11514 | return id; | |||
| 11515 | } | |||
| 11516 | ||||
| 11517 | template <class ParseHandler> | |||
| 11518 | typename ParseHandler::NameNodeResult | |||
| 11519 | PerHandlerParser<ParseHandler>::privateNameReference( | |||
| 11520 | TaggedParserAtomIndex name) { | |||
| 11521 | NameNodeType id; | |||
| 11522 | MOZ_TRY_VAR(id, newPrivateName(name))do { auto mozTryVarTempResult_ = (newPrivateName(name)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (id) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 11523 | ||||
| 11524 | if (!noteUsedName(name, NameVisibility::Private, Some(pos()))) { | |||
| 11525 | return errorResult(); | |||
| 11526 | } | |||
| 11527 | ||||
| 11528 | return id; | |||
| 11529 | } | |||
| 11530 | ||||
| 11531 | template <class ParseHandler> | |||
| 11532 | typename ParseHandler::NameNodeResult | |||
| 11533 | PerHandlerParser<ParseHandler>::stringLiteral() { | |||
| 11534 | return handler_.newStringLiteral(anyChars.currentToken().atom(), pos()); | |||
| 11535 | } | |||
| 11536 | ||||
| 11537 | template <class ParseHandler> | |||
| 11538 | typename ParseHandler::NodeResult | |||
| 11539 | PerHandlerParser<ParseHandler>::noSubstitutionTaggedTemplate() { | |||
| 11540 | if (anyChars.hasInvalidTemplateEscape()) { | |||
| 11541 | anyChars.clearInvalidTemplateEscape(); | |||
| 11542 | return handler_.newRawUndefinedLiteral(pos()); | |||
| 11543 | } | |||
| 11544 | ||||
| 11545 | return handler_.newTemplateStringLiteral(anyChars.currentToken().atom(), | |||
| 11546 | pos()); | |||
| 11547 | } | |||
| 11548 | ||||
| 11549 | template <class ParseHandler, typename Unit> | |||
| 11550 | typename ParseHandler::NameNodeResult | |||
| 11551 | GeneralParser<ParseHandler, Unit>::noSubstitutionUntaggedTemplate() { | |||
| 11552 | if (!tokenStream.checkForInvalidTemplateEscapeError()) { | |||
| 11553 | return errorResult(); | |||
| 11554 | } | |||
| 11555 | ||||
| 11556 | return handler_.newTemplateStringLiteral(anyChars.currentToken().atom(), | |||
| 11557 | pos()); | |||
| 11558 | } | |||
| 11559 | ||||
| 11560 | template <typename Unit> | |||
| 11561 | FullParseHandler::RegExpLiteralResult | |||
| 11562 | Parser<FullParseHandler, Unit>::newRegExp() { | |||
| 11563 | MOZ_ASSERT(!options().selfHostingMode)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!options().selfHostingMode)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!options().selfHostingMode)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!options().selfHostingMode" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11563); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!options().selfHostingMode" ")"); do { *((volatile int*)__null) = 11563; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11564 | ||||
| 11565 | // Create the regexp and check its syntax. | |||
| 11566 | const auto& chars = tokenStream.getCharBuffer(); | |||
| 11567 | mozilla::Range<const char16_t> range(chars.begin(), chars.length()); | |||
| 11568 | RegExpFlags flags = anyChars.currentToken().regExpFlags(); | |||
| 11569 | ||||
| 11570 | uint32_t offset = anyChars.currentToken().pos.begin; | |||
| 11571 | uint32_t line; | |||
| 11572 | JS::LimitedColumnNumberOneOrigin column; | |||
| 11573 | tokenStream.computeLineAndColumn(offset, &line, &column); | |||
| 11574 | ||||
| 11575 | if (!handler_.reuseRegexpSyntaxParse()) { | |||
| 11576 | // Verify that the Regexp will syntax parse when the time comes to | |||
| 11577 | // instantiate it. If we have already done a syntax parse, we can | |||
| 11578 | // skip this. | |||
| 11579 | if (!irregexp::CheckPatternSyntax( | |||
| 11580 | this->alloc_, this->fc_->stackLimit(), anyChars, range, flags, | |||
| 11581 | Some(line), Some(JS::ColumnNumberOneOrigin(column)))) { | |||
| 11582 | return errorResult(); | |||
| 11583 | } | |||
| 11584 | } | |||
| 11585 | ||||
| 11586 | auto atom = | |||
| 11587 | this->parserAtoms().internChar16(fc_, chars.begin(), chars.length()); | |||
| 11588 | if (!atom) { | |||
| 11589 | return errorResult(); | |||
| 11590 | } | |||
| 11591 | // RegExp patterm must be atomized. | |||
| 11592 | this->parserAtoms().markUsedByStencil(atom, ParserAtom::Atomize::Yes); | |||
| 11593 | ||||
| 11594 | RegExpIndex index(this->compilationState_.regExpData.length()); | |||
| 11595 | if (uint32_t(index) >= TaggedScriptThingIndex::IndexLimit) { | |||
| 11596 | ReportAllocationOverflow(fc_); | |||
| 11597 | return errorResult(); | |||
| 11598 | } | |||
| 11599 | if (!this->compilationState_.regExpData.emplaceBack(atom, flags)) { | |||
| 11600 | js::ReportOutOfMemory(this->fc_); | |||
| 11601 | return errorResult(); | |||
| 11602 | } | |||
| 11603 | ||||
| 11604 | return handler_.newRegExp(index, pos()); | |||
| 11605 | } | |||
| 11606 | ||||
| 11607 | template <typename Unit> | |||
| 11608 | SyntaxParseHandler::RegExpLiteralResult | |||
| 11609 | Parser<SyntaxParseHandler, Unit>::newRegExp() { | |||
| 11610 | MOZ_ASSERT(!options().selfHostingMode)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!options().selfHostingMode)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!options().selfHostingMode)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!options().selfHostingMode" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11610); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!options().selfHostingMode" ")"); do { *((volatile int*)__null) = 11610; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11611 | ||||
| 11612 | // Only check the regexp's syntax, but don't create a regexp object. | |||
| 11613 | const auto& chars = tokenStream.getCharBuffer(); | |||
| 11614 | RegExpFlags flags = anyChars.currentToken().regExpFlags(); | |||
| 11615 | ||||
| 11616 | uint32_t offset = anyChars.currentToken().pos.begin; | |||
| 11617 | uint32_t line; | |||
| 11618 | JS::LimitedColumnNumberOneOrigin column; | |||
| 11619 | tokenStream.computeLineAndColumn(offset, &line, &column); | |||
| 11620 | ||||
| 11621 | mozilla::Range<const char16_t> source(chars.begin(), chars.length()); | |||
| 11622 | if (!irregexp::CheckPatternSyntax(this->alloc_, this->fc_->stackLimit(), | |||
| 11623 | anyChars, source, flags, Some(line), | |||
| 11624 | Some(JS::ColumnNumberOneOrigin(column)))) { | |||
| 11625 | return errorResult(); | |||
| 11626 | } | |||
| 11627 | ||||
| 11628 | return handler_.newRegExp(SyntaxParseHandler::Node::NodeGeneric, pos()); | |||
| 11629 | } | |||
| 11630 | ||||
| 11631 | template <class ParseHandler, typename Unit> | |||
| 11632 | typename ParseHandler::RegExpLiteralResult | |||
| 11633 | GeneralParser<ParseHandler, Unit>::newRegExp() { | |||
| 11634 | return asFinalParser()->newRegExp(); | |||
| 11635 | } | |||
| 11636 | ||||
| 11637 | template <typename Unit> | |||
| 11638 | FullParseHandler::BigIntLiteralResult | |||
| 11639 | Parser<FullParseHandler, Unit>::newBigInt() { | |||
| 11640 | // The token's charBuffer contains the DecimalIntegerLiteral or | |||
| 11641 | // NonDecimalIntegerLiteral production, and as such does not include the | |||
| 11642 | // BigIntLiteralSuffix (the trailing "n"). Note that NonDecimalIntegerLiteral | |||
| 11643 | // productions start with 0[bBoOxX], indicating binary/octal/hex. | |||
| 11644 | const auto& chars = tokenStream.getCharBuffer(); | |||
| 11645 | if (chars.length() > UINT32_MAX(4294967295U)) { | |||
| 11646 | ReportAllocationOverflow(fc_); | |||
| 11647 | return errorResult(); | |||
| 11648 | } | |||
| 11649 | ||||
| 11650 | BigIntIndex index(this->compilationState_.bigIntData.length()); | |||
| 11651 | if (uint32_t(index) >= TaggedScriptThingIndex::IndexLimit) { | |||
| 11652 | ReportAllocationOverflow(fc_); | |||
| 11653 | return errorResult(); | |||
| 11654 | } | |||
| 11655 | if (!this->compilationState_.bigIntData.emplaceBack()) { | |||
| 11656 | js::ReportOutOfMemory(this->fc_); | |||
| 11657 | return errorResult(); | |||
| 11658 | } | |||
| 11659 | ||||
| 11660 | if (!this->compilationState_.bigIntData[index].init( | |||
| 11661 | this->fc_, this->stencilAlloc(), chars)) { | |||
| 11662 | return errorResult(); | |||
| 11663 | } | |||
| 11664 | ||||
| 11665 | bool isZero = this->compilationState_.bigIntData[index].isZero(); | |||
| 11666 | ||||
| 11667 | // Should the operations below fail, the buffer held by data will | |||
| 11668 | // be cleaned up by the CompilationState destructor. | |||
| 11669 | return handler_.newBigInt(index, isZero, pos()); | |||
| 11670 | } | |||
| 11671 | ||||
| 11672 | template <typename Unit> | |||
| 11673 | SyntaxParseHandler::BigIntLiteralResult | |||
| 11674 | Parser<SyntaxParseHandler, Unit>::newBigInt() { | |||
| 11675 | // The tokenizer has already checked the syntax of the bigint. | |||
| 11676 | ||||
| 11677 | return handler_.newBigInt(); | |||
| 11678 | } | |||
| 11679 | ||||
| 11680 | template <class ParseHandler, typename Unit> | |||
| 11681 | typename ParseHandler::BigIntLiteralResult | |||
| 11682 | GeneralParser<ParseHandler, Unit>::newBigInt() { | |||
| 11683 | return asFinalParser()->newBigInt(); | |||
| 11684 | } | |||
| 11685 | ||||
| 11686 | // |exprPossibleError| is the PossibleError state within |expr|, | |||
| 11687 | // |possibleError| is the surrounding PossibleError state. | |||
| 11688 | template <class ParseHandler, typename Unit> | |||
| 11689 | bool GeneralParser<ParseHandler, Unit>::checkDestructuringAssignmentTarget( | |||
| 11690 | Node expr, TokenPos exprPos, PossibleError* exprPossibleError, | |||
| 11691 | PossibleError* possibleError, TargetBehavior behavior) { | |||
| 11692 | // Report any pending expression error if we're definitely not in a | |||
| 11693 | // destructuring context or the possible destructuring target is a | |||
| 11694 | // property accessor. | |||
| 11695 | if (!possibleError || handler_.isPropertyOrPrivateMemberAccess(expr)) { | |||
| 11696 | return exprPossibleError->checkForExpressionError(); | |||
| 11697 | } | |||
| 11698 | ||||
| 11699 | // |expr| may end up as a destructuring assignment target, so we need to | |||
| 11700 | // validate it's either a name or can be parsed as a nested destructuring | |||
| 11701 | // pattern. Property accessors are also valid assignment targets, but | |||
| 11702 | // those are already handled above. | |||
| 11703 | ||||
| 11704 | exprPossibleError->transferErrorsTo(possibleError); | |||
| 11705 | ||||
| 11706 | // Return early if a pending destructuring error is already present. | |||
| 11707 | if (possibleError->hasPendingDestructuringError()) { | |||
| 11708 | return true; | |||
| 11709 | } | |||
| 11710 | ||||
| 11711 | if (handler_.isName(expr)) { | |||
| 11712 | checkDestructuringAssignmentName(handler_.asNameNode(expr), exprPos, | |||
| 11713 | possibleError); | |||
| 11714 | return true; | |||
| 11715 | } | |||
| 11716 | ||||
| 11717 | if (handler_.isUnparenthesizedDestructuringPattern(expr)) { | |||
| 11718 | if (behavior == TargetBehavior::ForbidAssignmentPattern) { | |||
| 11719 | possibleError->setPendingDestructuringErrorAt(exprPos, | |||
| 11720 | JSMSG_BAD_DESTRUCT_TARGET); | |||
| 11721 | } | |||
| 11722 | return true; | |||
| 11723 | } | |||
| 11724 | ||||
| 11725 | // Parentheses are forbidden around destructuring *patterns* (but allowed | |||
| 11726 | // around names). Use our nicer error message for parenthesized, nested | |||
| 11727 | // patterns if nested destructuring patterns are allowed. | |||
| 11728 | if (handler_.isParenthesizedDestructuringPattern(expr) && | |||
| 11729 | behavior != TargetBehavior::ForbidAssignmentPattern) { | |||
| 11730 | possibleError->setPendingDestructuringErrorAt(exprPos, | |||
| 11731 | JSMSG_BAD_DESTRUCT_PARENS); | |||
| 11732 | } else { | |||
| 11733 | possibleError->setPendingDestructuringErrorAt(exprPos, | |||
| 11734 | JSMSG_BAD_DESTRUCT_TARGET); | |||
| 11735 | } | |||
| 11736 | ||||
| 11737 | return true; | |||
| 11738 | } | |||
| 11739 | ||||
| 11740 | template <class ParseHandler, typename Unit> | |||
| 11741 | void GeneralParser<ParseHandler, Unit>::checkDestructuringAssignmentName( | |||
| 11742 | NameNodeType name, TokenPos namePos, PossibleError* possibleError) { | |||
| 11743 | #ifdef DEBUG1 | |||
| 11744 | // GCC 8.0.1 crashes if this is a one-liner. | |||
| 11745 | bool isName = handler_.isName(name); | |||
| 11746 | MOZ_ASSERT(isName)do { static_assert( mozilla::detail::AssertionConditionType< decltype(isName)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(isName))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("isName", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isName" ")" ); do { *((volatile int*)__null) = 11746; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 11747 | #endif | |||
| 11748 | ||||
| 11749 | // Return early if a pending destructuring error is already present. | |||
| 11750 | if (possibleError->hasPendingDestructuringError()) { | |||
| 11751 | return; | |||
| 11752 | } | |||
| 11753 | ||||
| 11754 | if (handler_.isArgumentsLength(name)) { | |||
| 11755 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
| 11756 | } | |||
| 11757 | ||||
| 11758 | if (pc_->sc()->strict()) { | |||
| 11759 | if (handler_.isArgumentsName(name)) { | |||
| 11760 | if (pc_->sc()->strict()) { | |||
| 11761 | possibleError->setPendingDestructuringErrorAt( | |||
| 11762 | namePos, JSMSG_BAD_STRICT_ASSIGN_ARGUMENTS); | |||
| 11763 | } else { | |||
| 11764 | possibleError->setPendingDestructuringWarningAt( | |||
| 11765 | namePos, JSMSG_BAD_STRICT_ASSIGN_ARGUMENTS); | |||
| 11766 | } | |||
| 11767 | return; | |||
| 11768 | } | |||
| 11769 | ||||
| 11770 | if (handler_.isEvalName(name)) { | |||
| 11771 | if (pc_->sc()->strict()) { | |||
| 11772 | possibleError->setPendingDestructuringErrorAt( | |||
| 11773 | namePos, JSMSG_BAD_STRICT_ASSIGN_EVAL); | |||
| 11774 | } else { | |||
| 11775 | possibleError->setPendingDestructuringWarningAt( | |||
| 11776 | namePos, JSMSG_BAD_STRICT_ASSIGN_EVAL); | |||
| 11777 | } | |||
| 11778 | return; | |||
| 11779 | } | |||
| 11780 | } | |||
| 11781 | } | |||
| 11782 | ||||
| 11783 | template <class ParseHandler, typename Unit> | |||
| 11784 | bool GeneralParser<ParseHandler, Unit>::checkDestructuringAssignmentElement( | |||
| 11785 | Node expr, TokenPos exprPos, PossibleError* exprPossibleError, | |||
| 11786 | PossibleError* possibleError) { | |||
| 11787 | // ES2018 draft rev 0719f44aab93215ed9a626b2f45bd34f36916834 | |||
| 11788 | // 12.15.5 Destructuring Assignment | |||
| 11789 | // | |||
| 11790 | // AssignmentElement[Yield, Await]: | |||
| 11791 | // DestructuringAssignmentTarget[?Yield, ?Await] | |||
| 11792 | // DestructuringAssignmentTarget[?Yield, ?Await] Initializer[+In, | |||
| 11793 | // ?Yield, | |||
| 11794 | // ?Await] | |||
| 11795 | ||||
| 11796 | // If |expr| is an assignment element with an initializer expression, its | |||
| 11797 | // destructuring assignment target was already validated in assignExpr(). | |||
| 11798 | // Otherwise we need to check that |expr| is a valid destructuring target. | |||
| 11799 | if (handler_.isUnparenthesizedAssignment(expr)) { | |||
| 11800 | // Report any pending expression error if we're definitely not in a | |||
| 11801 | // destructuring context. | |||
| 11802 | if (!possibleError) { | |||
| 11803 | return exprPossibleError->checkForExpressionError(); | |||
| 11804 | } | |||
| 11805 | ||||
| 11806 | exprPossibleError->transferErrorsTo(possibleError); | |||
| 11807 | return true; | |||
| 11808 | } | |||
| 11809 | return checkDestructuringAssignmentTarget(expr, exprPos, exprPossibleError, | |||
| 11810 | possibleError); | |||
| 11811 | } | |||
| 11812 | ||||
| 11813 | template <class ParseHandler, typename Unit> | |||
| 11814 | typename ParseHandler::ListNodeResult | |||
| 11815 | GeneralParser<ParseHandler, Unit>::arrayInitializer( | |||
| 11816 | YieldHandling yieldHandling, PossibleError* possibleError) { | |||
| 11817 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftBracket))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftBracket)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftBracket)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftBracket)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 11817); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftBracket)" ")"); do { *((volatile int*)__null) = 11817; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 11818 | ||||
| 11819 | uint32_t begin = pos().begin; | |||
| 11820 | ListNodeType literal; | |||
| 11821 | MOZ_TRY_VAR(literal, handler_.newArrayLiteral(begin))do { auto mozTryVarTempResult_ = (handler_.newArrayLiteral(begin )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (literal) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11822 | ||||
| 11823 | TokenKind tt; | |||
| 11824 | if (!tokenStream.getToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 11825 | return errorResult(); | |||
| 11826 | } | |||
| 11827 | ||||
| 11828 | if (tt == TokenKind::RightBracket) { | |||
| 11829 | /* | |||
| 11830 | * Mark empty arrays as non-constant, since we cannot easily | |||
| 11831 | * determine their type. | |||
| 11832 | */ | |||
| 11833 | handler_.setListHasNonConstInitializer(literal); | |||
| 11834 | } else { | |||
| 11835 | anyChars.ungetToken(); | |||
| 11836 | ||||
| 11837 | for (uint32_t index = 0;; index++) { | |||
| 11838 | if (index >= NativeObject::MAX_DENSE_ELEMENTS_COUNT) { | |||
| 11839 | error(JSMSG_ARRAY_INIT_TOO_BIG); | |||
| 11840 | return errorResult(); | |||
| 11841 | } | |||
| 11842 | ||||
| 11843 | TokenKind tt; | |||
| 11844 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 11845 | return errorResult(); | |||
| 11846 | } | |||
| 11847 | if (tt == TokenKind::RightBracket) { | |||
| 11848 | break; | |||
| 11849 | } | |||
| 11850 | ||||
| 11851 | if (tt == TokenKind::Comma) { | |||
| 11852 | tokenStream.consumeKnownToken(TokenKind::Comma, | |||
| 11853 | TokenStream::SlashIsRegExp); | |||
| 11854 | if (!handler_.addElision(literal, pos())) { | |||
| 11855 | return errorResult(); | |||
| 11856 | } | |||
| 11857 | continue; | |||
| 11858 | } | |||
| 11859 | ||||
| 11860 | if (tt == TokenKind::TripleDot) { | |||
| 11861 | tokenStream.consumeKnownToken(TokenKind::TripleDot, | |||
| 11862 | TokenStream::SlashIsRegExp); | |||
| 11863 | uint32_t begin = pos().begin; | |||
| 11864 | ||||
| 11865 | TokenPos innerPos; | |||
| 11866 | if (!tokenStream.peekTokenPos(&innerPos, TokenStream::SlashIsRegExp)) { | |||
| 11867 | return errorResult(); | |||
| 11868 | } | |||
| 11869 | ||||
| 11870 | PossibleError possibleErrorInner(*this); | |||
| 11871 | Node inner; | |||
| 11872 | MOZ_TRY_VAR(inner,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11873 | assignExpr(InAllowed, yieldHandling, TripledotProhibited,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11874 | &possibleErrorInner))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11875 | if (!checkDestructuringAssignmentTarget( | |||
| 11876 | inner, innerPos, &possibleErrorInner, possibleError)) { | |||
| 11877 | return errorResult(); | |||
| 11878 | } | |||
| 11879 | ||||
| 11880 | if (!handler_.addSpreadElement(literal, begin, inner)) { | |||
| 11881 | return errorResult(); | |||
| 11882 | } | |||
| 11883 | } else { | |||
| 11884 | TokenPos elementPos; | |||
| 11885 | if (!tokenStream.peekTokenPos(&elementPos, | |||
| 11886 | TokenStream::SlashIsRegExp)) { | |||
| 11887 | return errorResult(); | |||
| 11888 | } | |||
| 11889 | ||||
| 11890 | PossibleError possibleErrorInner(*this); | |||
| 11891 | Node element; | |||
| 11892 | MOZ_TRY_VAR(element,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (element) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11893 | assignExpr(InAllowed, yieldHandling, TripledotProhibited,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (element) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 11894 | &possibleErrorInner))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (element) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11895 | if (!checkDestructuringAssignmentElement( | |||
| 11896 | element, elementPos, &possibleErrorInner, possibleError)) { | |||
| 11897 | return errorResult(); | |||
| 11898 | } | |||
| 11899 | handler_.addArrayElement(literal, element); | |||
| 11900 | } | |||
| 11901 | ||||
| 11902 | bool matched; | |||
| 11903 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 11904 | TokenStream::SlashIsRegExp)) { | |||
| 11905 | return errorResult(); | |||
| 11906 | } | |||
| 11907 | if (!matched) { | |||
| 11908 | break; | |||
| 11909 | } | |||
| 11910 | ||||
| 11911 | if (tt == TokenKind::TripleDot && possibleError) { | |||
| 11912 | possibleError->setPendingDestructuringErrorAt(pos(), | |||
| 11913 | JSMSG_REST_WITH_COMMA); | |||
| 11914 | } | |||
| 11915 | } | |||
| 11916 | ||||
| 11917 | if (!mustMatchToken( | |||
| 11918 | TokenKind::RightBracket, [this, begin](TokenKind actual) { | |||
| 11919 | this->reportMissingClosing(JSMSG_BRACKET_AFTER_LIST, | |||
| 11920 | JSMSG_BRACKET_OPENED, begin); | |||
| 11921 | })) { | |||
| 11922 | return errorResult(); | |||
| 11923 | } | |||
| 11924 | } | |||
| 11925 | ||||
| 11926 | handler_.setEndPosition(literal, pos().end); | |||
| 11927 | return literal; | |||
| 11928 | } | |||
| 11929 | ||||
| 11930 | template <class ParseHandler, typename Unit> | |||
| 11931 | typename ParseHandler::NodeResult | |||
| 11932 | GeneralParser<ParseHandler, Unit>::propertyName( | |||
| 11933 | YieldHandling yieldHandling, PropertyNameContext propertyNameContext, | |||
| 11934 | const Maybe<DeclarationKind>& maybeDecl, ListNodeType propList, | |||
| 11935 | TaggedParserAtomIndex* propAtomOut) { | |||
| 11936 | // PropertyName[Yield, Await]: | |||
| 11937 | // LiteralPropertyName | |||
| 11938 | // ComputedPropertyName[?Yield, ?Await] | |||
| 11939 | // | |||
| 11940 | // LiteralPropertyName: | |||
| 11941 | // IdentifierName | |||
| 11942 | // StringLiteral | |||
| 11943 | // NumericLiteral | |||
| 11944 | TokenKind ltok = anyChars.currentToken().type; | |||
| 11945 | ||||
| 11946 | *propAtomOut = TaggedParserAtomIndex::null(); | |||
| 11947 | switch (ltok) { | |||
| 11948 | case TokenKind::Number: { | |||
| 11949 | auto numAtom = NumberToParserAtom(fc_, this->parserAtoms(), | |||
| 11950 | anyChars.currentToken().number()); | |||
| 11951 | if (!numAtom) { | |||
| 11952 | return errorResult(); | |||
| 11953 | } | |||
| 11954 | *propAtomOut = numAtom; | |||
| 11955 | return newNumber(anyChars.currentToken()); | |||
| 11956 | } | |||
| 11957 | ||||
| 11958 | case TokenKind::BigInt: { | |||
| 11959 | Node biNode; | |||
| 11960 | MOZ_TRY_VAR(biNode, newBigInt())do { auto mozTryVarTempResult_ = (newBigInt()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (biNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 11961 | return handler_.newSyntheticComputedName(biNode, pos().begin, pos().end); | |||
| 11962 | } | |||
| 11963 | case TokenKind::String: { | |||
| 11964 | auto str = anyChars.currentToken().atom(); | |||
| 11965 | *propAtomOut = str; | |||
| 11966 | uint32_t index; | |||
| 11967 | if (this->parserAtoms().isIndex(str, &index)) { | |||
| 11968 | return handler_.newNumber(index, NoDecimal, pos()); | |||
| 11969 | } | |||
| 11970 | return stringLiteral(); | |||
| 11971 | } | |||
| 11972 | ||||
| 11973 | case TokenKind::LeftBracket: | |||
| 11974 | return computedPropertyName(yieldHandling, maybeDecl, propertyNameContext, | |||
| 11975 | propList); | |||
| 11976 | ||||
| 11977 | case TokenKind::PrivateName: { | |||
| 11978 | if (propertyNameContext != PropertyNameContext::PropertyNameInClass) { | |||
| 11979 | error(JSMSG_ILLEGAL_PRIVATE_FIELD); | |||
| 11980 | return errorResult(); | |||
| 11981 | } | |||
| 11982 | ||||
| 11983 | TaggedParserAtomIndex propName = anyChars.currentName(); | |||
| 11984 | *propAtomOut = propName; | |||
| 11985 | return privateNameReference(propName); | |||
| 11986 | } | |||
| 11987 | ||||
| 11988 | default: { | |||
| 11989 | if (!TokenKindIsPossibleIdentifierName(ltok)) { | |||
| 11990 | error(JSMSG_UNEXPECTED_TOKEN, "property name", TokenKindToDesc(ltok)); | |||
| 11991 | return errorResult(); | |||
| 11992 | } | |||
| 11993 | ||||
| 11994 | TaggedParserAtomIndex name = anyChars.currentName(); | |||
| 11995 | *propAtomOut = name; | |||
| 11996 | return handler_.newObjectLiteralPropertyName(name, pos()); | |||
| 11997 | } | |||
| 11998 | } | |||
| 11999 | } | |||
| 12000 | ||||
| 12001 | // True if `kind` can be the first token of a PropertyName. | |||
| 12002 | static bool TokenKindCanStartPropertyName(TokenKind tt) { | |||
| 12003 | return TokenKindIsPossibleIdentifierName(tt) || tt == TokenKind::String || | |||
| 12004 | tt == TokenKind::Number || tt == TokenKind::LeftBracket || | |||
| 12005 | tt == TokenKind::Mul || tt == TokenKind::BigInt || | |||
| 12006 | tt == TokenKind::PrivateName; | |||
| 12007 | } | |||
| 12008 | ||||
| 12009 | template <class ParseHandler, typename Unit> | |||
| 12010 | typename ParseHandler::NodeResult | |||
| 12011 | GeneralParser<ParseHandler, Unit>::propertyOrMethodName( | |||
| 12012 | YieldHandling yieldHandling, PropertyNameContext propertyNameContext, | |||
| 12013 | const Maybe<DeclarationKind>& maybeDecl, ListNodeType propList, | |||
| 12014 | PropertyType* propType, TaggedParserAtomIndex* propAtomOut) { | |||
| 12015 | // We're parsing an object literal, class, or destructuring pattern; | |||
| 12016 | // propertyNameContext tells which one. This method parses any of the | |||
| 12017 | // following, storing the corresponding PropertyType in `*propType` to tell | |||
| 12018 | // the caller what we parsed: | |||
| 12019 | // | |||
| 12020 | // async [no LineTerminator here] PropertyName | |||
| 12021 | // ==> PropertyType::AsyncMethod | |||
| 12022 | // async [no LineTerminator here] * PropertyName | |||
| 12023 | // ==> PropertyType::AsyncGeneratorMethod | |||
| 12024 | // * PropertyName ==> PropertyType::GeneratorMethod | |||
| 12025 | // get PropertyName ==> PropertyType::Getter | |||
| 12026 | // set PropertyName ==> PropertyType::Setter | |||
| 12027 | // accessor PropertyName ==> PropertyType::FieldWithAccessor | |||
| 12028 | // PropertyName : ==> PropertyType::Normal | |||
| 12029 | // PropertyName ==> see below | |||
| 12030 | // | |||
| 12031 | // In the last case, where there's not a `:` token to consume, we peek at | |||
| 12032 | // (but don't consume) the next token to decide how to set `*propType`. | |||
| 12033 | // | |||
| 12034 | // `,` or `}` ==> PropertyType::Shorthand | |||
| 12035 | // `(` ==> PropertyType::Method | |||
| 12036 | // `=`, not in a class ==> PropertyType::CoverInitializedName | |||
| 12037 | // '=', in a class ==> PropertyType::Field | |||
| 12038 | // any token, in a class ==> PropertyType::Field (ASI) | |||
| 12039 | // | |||
| 12040 | // The caller must check `*propType` and throw if whatever we parsed isn't | |||
| 12041 | // allowed here (for example, a getter in a destructuring pattern). | |||
| 12042 | // | |||
| 12043 | // This method does *not* match `static` (allowed in classes) or `...` | |||
| 12044 | // (allowed in object literals and patterns). The caller must take care of | |||
| 12045 | // those before calling this method. | |||
| 12046 | ||||
| 12047 | TokenKind ltok; | |||
| 12048 | if (!tokenStream.getToken(<ok, TokenStream::SlashIsInvalid)) { | |||
| 12049 | return errorResult(); | |||
| 12050 | } | |||
| 12051 | ||||
| 12052 | MOZ_ASSERT(ltok != TokenKind::RightCurly,do { static_assert( mozilla::detail::AssertionConditionType< decltype(ltok != TokenKind::RightCurly)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(ltok != TokenKind::RightCurly ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "ltok != TokenKind::RightCurly" " (" "caller should have handled TokenKind::RightCurly" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12053); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ltok != TokenKind::RightCurly" ") (" "caller should have handled TokenKind::RightCurly" ")" ); do { *((volatile int*)__null) = 12053; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 12053 | "caller should have handled TokenKind::RightCurly")do { static_assert( mozilla::detail::AssertionConditionType< decltype(ltok != TokenKind::RightCurly)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(ltok != TokenKind::RightCurly ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "ltok != TokenKind::RightCurly" " (" "caller should have handled TokenKind::RightCurly" ")", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12053); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ltok != TokenKind::RightCurly" ") (" "caller should have handled TokenKind::RightCurly" ")" ); do { *((volatile int*)__null) = 12053; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 12054 | ||||
| 12055 | // Accept `async` and/or `*`, indicating an async or generator method; | |||
| 12056 | // or `get` or `set` or `accessor`, indicating an accessor. | |||
| 12057 | bool isGenerator = false; | |||
| 12058 | bool isAsync = false; | |||
| 12059 | bool isGetter = false; | |||
| 12060 | bool isSetter = false; | |||
| 12061 | #ifdef ENABLE_DECORATORS | |||
| 12062 | bool hasAccessor = false; | |||
| 12063 | #endif | |||
| 12064 | ||||
| 12065 | if (ltok == TokenKind::Async) { | |||
| 12066 | // `async` is also a PropertyName by itself (it's a conditional keyword), | |||
| 12067 | // so peek at the next token to see if we're really looking at a method. | |||
| 12068 | TokenKind tt = TokenKind::Eof; | |||
| 12069 | if (!tokenStream.peekTokenSameLine(&tt)) { | |||
| 12070 | return errorResult(); | |||
| 12071 | } | |||
| 12072 | if (TokenKindCanStartPropertyName(tt)) { | |||
| 12073 | isAsync = true; | |||
| 12074 | tokenStream.consumeKnownToken(tt); | |||
| 12075 | ltok = tt; | |||
| 12076 | } | |||
| 12077 | } | |||
| 12078 | ||||
| 12079 | if (ltok == TokenKind::Mul) { | |||
| 12080 | isGenerator = true; | |||
| 12081 | if (!tokenStream.getToken(<ok)) { | |||
| 12082 | return errorResult(); | |||
| 12083 | } | |||
| 12084 | } | |||
| 12085 | ||||
| 12086 | if (!isAsync && !isGenerator && | |||
| 12087 | (ltok == TokenKind::Get || ltok == TokenKind::Set)) { | |||
| 12088 | // We have parsed |get| or |set|. Look for an accessor property | |||
| 12089 | // name next. | |||
| 12090 | TokenKind tt; | |||
| 12091 | if (!tokenStream.peekToken(&tt)) { | |||
| 12092 | return errorResult(); | |||
| 12093 | } | |||
| 12094 | if (TokenKindCanStartPropertyName(tt)) { | |||
| 12095 | tokenStream.consumeKnownToken(tt); | |||
| 12096 | isGetter = (ltok == TokenKind::Get); | |||
| 12097 | isSetter = (ltok == TokenKind::Set); | |||
| 12098 | } | |||
| 12099 | } | |||
| 12100 | ||||
| 12101 | #ifdef ENABLE_DECORATORS | |||
| 12102 | if (!isGenerator && !isAsync && propertyNameContext == PropertyNameInClass && | |||
| 12103 | ltok == TokenKind::Accessor) { | |||
| 12104 | MOZ_ASSERT(!isGetter && !isSetter)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!isGetter && !isSetter)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!isGetter && !isSetter ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!isGetter && !isSetter", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12104); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!isGetter && !isSetter" ")"); do { *((volatile int*)__null) = 12104; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12105 | TokenKind tt; | |||
| 12106 | if (!tokenStream.peekTokenSameLine(&tt)) { | |||
| 12107 | return errorResult(); | |||
| 12108 | } | |||
| 12109 | ||||
| 12110 | // The target rule is `accessor [no LineTerminator here] | |||
| 12111 | // ClassElementName[?Yield, ?Await] Initializer[+In, ?Yield, ?Await]opt` | |||
| 12112 | if (TokenKindCanStartPropertyName(tt)) { | |||
| 12113 | tokenStream.consumeKnownToken(tt); | |||
| 12114 | hasAccessor = true; | |||
| 12115 | } | |||
| 12116 | } | |||
| 12117 | #endif | |||
| 12118 | ||||
| 12119 | Node propName; | |||
| 12120 | MOZ_TRY_VAR(propName, propertyName(yieldHandling, propertyNameContext,do { auto mozTryVarTempResult_ = (propertyName(yieldHandling, propertyNameContext, maybeDecl, propList, propAtomOut)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName) = mozTryVarTempResult_ .unwrap(); } while (0) | |||
| 12121 | maybeDecl, propList, propAtomOut))do { auto mozTryVarTempResult_ = (propertyName(yieldHandling, propertyNameContext, maybeDecl, propList, propAtomOut)); if ( (__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 12122 | ||||
| 12123 | // Grab the next token following the property/method name. | |||
| 12124 | // (If this isn't a colon, we're going to either put it back or throw.) | |||
| 12125 | TokenKind tt; | |||
| 12126 | if (!tokenStream.getToken(&tt)) { | |||
| 12127 | return errorResult(); | |||
| 12128 | } | |||
| 12129 | ||||
| 12130 | if (tt == TokenKind::Colon) { | |||
| 12131 | if (isGenerator || isAsync || isGetter || isSetter | |||
| 12132 | #ifdef ENABLE_DECORATORS | |||
| 12133 | || hasAccessor | |||
| 12134 | #endif | |||
| 12135 | ) { | |||
| 12136 | error(JSMSG_BAD_PROP_ID); | |||
| 12137 | return errorResult(); | |||
| 12138 | } | |||
| 12139 | *propType = PropertyType::Normal; | |||
| 12140 | return propName; | |||
| 12141 | } | |||
| 12142 | ||||
| 12143 | if (propertyNameContext != PropertyNameInClass && | |||
| 12144 | TokenKindIsPossibleIdentifierName(ltok) && | |||
| 12145 | (tt == TokenKind::Comma || tt == TokenKind::RightCurly || | |||
| 12146 | tt == TokenKind::Assign)) { | |||
| 12147 | #ifdef ENABLE_DECORATORS | |||
| 12148 | MOZ_ASSERT(!hasAccessor)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!hasAccessor)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!hasAccessor))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!hasAccessor", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12148); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!hasAccessor" ")"); do { *((volatile int*)__null) = 12148; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12149 | #endif | |||
| 12150 | if (isGenerator || isAsync || isGetter || isSetter) { | |||
| 12151 | error(JSMSG_BAD_PROP_ID); | |||
| 12152 | return errorResult(); | |||
| 12153 | } | |||
| 12154 | ||||
| 12155 | anyChars.ungetToken(); | |||
| 12156 | *propType = tt == TokenKind::Assign ? PropertyType::CoverInitializedName | |||
| 12157 | : PropertyType::Shorthand; | |||
| 12158 | return propName; | |||
| 12159 | } | |||
| 12160 | ||||
| 12161 | if (tt == TokenKind::LeftParen) { | |||
| 12162 | anyChars.ungetToken(); | |||
| 12163 | ||||
| 12164 | #ifdef ENABLE_RECORD_TUPLE | |||
| 12165 | if (propertyNameContext == PropertyNameInRecord) { | |||
| 12166 | // Record & Tuple proposal, section 7.1.1: | |||
| 12167 | // RecordPropertyDefinition doesn't cover methods | |||
| 12168 | error(JSMSG_BAD_PROP_ID); | |||
| 12169 | return errorResult(); | |||
| 12170 | } | |||
| 12171 | #endif | |||
| 12172 | ||||
| 12173 | #ifdef ENABLE_DECORATORS | |||
| 12174 | if (hasAccessor) { | |||
| 12175 | error(JSMSG_BAD_PROP_ID); | |||
| 12176 | return errorResult(); | |||
| 12177 | } | |||
| 12178 | #endif | |||
| 12179 | ||||
| 12180 | if (isGenerator && isAsync) { | |||
| 12181 | *propType = PropertyType::AsyncGeneratorMethod; | |||
| 12182 | } else if (isGenerator) { | |||
| 12183 | *propType = PropertyType::GeneratorMethod; | |||
| 12184 | } else if (isAsync) { | |||
| 12185 | *propType = PropertyType::AsyncMethod; | |||
| 12186 | } else if (isGetter) { | |||
| 12187 | *propType = PropertyType::Getter; | |||
| 12188 | } else if (isSetter) { | |||
| 12189 | *propType = PropertyType::Setter; | |||
| 12190 | } else { | |||
| 12191 | *propType = PropertyType::Method; | |||
| 12192 | } | |||
| 12193 | return propName; | |||
| 12194 | } | |||
| 12195 | ||||
| 12196 | if (propertyNameContext == PropertyNameInClass) { | |||
| 12197 | if (isGenerator || isAsync || isGetter || isSetter) { | |||
| 12198 | error(JSMSG_BAD_PROP_ID); | |||
| 12199 | return errorResult(); | |||
| 12200 | } | |||
| 12201 | anyChars.ungetToken(); | |||
| 12202 | #ifdef ENABLE_DECORATORS | |||
| 12203 | if (!hasAccessor) { | |||
| 12204 | *propType = PropertyType::Field; | |||
| 12205 | } else { | |||
| 12206 | *propType = PropertyType::FieldWithAccessor; | |||
| 12207 | } | |||
| 12208 | #else | |||
| 12209 | *propType = PropertyType::Field; | |||
| 12210 | #endif | |||
| 12211 | return propName; | |||
| 12212 | } | |||
| 12213 | ||||
| 12214 | error(JSMSG_COLON_AFTER_ID); | |||
| 12215 | return errorResult(); | |||
| 12216 | } | |||
| 12217 | ||||
| 12218 | template <class ParseHandler, typename Unit> | |||
| 12219 | typename ParseHandler::UnaryNodeResult | |||
| 12220 | GeneralParser<ParseHandler, Unit>::computedPropertyName( | |||
| 12221 | YieldHandling yieldHandling, const Maybe<DeclarationKind>& maybeDecl, | |||
| 12222 | PropertyNameContext propertyNameContext, ListNodeType literal) { | |||
| 12223 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftBracket))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftBracket)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftBracket)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftBracket)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12223); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftBracket)" ")"); do { *((volatile int*)__null) = 12223; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12224 | ||||
| 12225 | uint32_t begin = pos().begin; | |||
| 12226 | ||||
| 12227 | if (maybeDecl) { | |||
| 12228 | if (*maybeDecl == DeclarationKind::FormalParameter) { | |||
| 12229 | pc_->functionBox()->hasParameterExprs = true; | |||
| 12230 | } | |||
| 12231 | } else if (propertyNameContext == | |||
| 12232 | PropertyNameContext::PropertyNameInLiteral) { | |||
| 12233 | handler_.setListHasNonConstInitializer(literal); | |||
| 12234 | } | |||
| 12235 | ||||
| 12236 | Node assignNode; | |||
| 12237 | MOZ_TRY_VAR(assignNode,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (assignNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12238 | assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (assignNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12239 | ||||
| 12240 | if (!mustMatchToken(TokenKind::RightBracket, JSMSG_COMP_PROP_UNTERM_EXPR)) { | |||
| 12241 | return errorResult(); | |||
| 12242 | } | |||
| 12243 | return handler_.newComputedName(assignNode, begin, pos().end); | |||
| 12244 | } | |||
| 12245 | ||||
| 12246 | template <class ParseHandler, typename Unit> | |||
| 12247 | typename ParseHandler::ListNodeResult | |||
| 12248 | GeneralParser<ParseHandler, Unit>::objectLiteral(YieldHandling yieldHandling, | |||
| 12249 | PossibleError* possibleError) { | |||
| 12250 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftCurly))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftCurly))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftCurly)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftCurly)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12250); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftCurly)" ")"); do { *((volatile int*)__null) = 12250; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12251 | ||||
| 12252 | uint32_t openedPos = pos().begin; | |||
| 12253 | ||||
| 12254 | ListNodeType literal; | |||
| 12255 | MOZ_TRY_VAR(literal, handler_.newObjectLiteral(pos().begin))do { auto mozTryVarTempResult_ = (handler_.newObjectLiteral(pos ().begin)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (literal ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12256 | ||||
| 12257 | bool seenPrototypeMutation = false; | |||
| 12258 | bool seenCoverInitializedName = false; | |||
| 12259 | Maybe<DeclarationKind> declKind = Nothing(); | |||
| 12260 | TaggedParserAtomIndex propAtom; | |||
| 12261 | for (;;) { | |||
| 12262 | TokenKind tt; | |||
| 12263 | if (!tokenStream.peekToken(&tt)) { | |||
| 12264 | return errorResult(); | |||
| 12265 | } | |||
| 12266 | if (tt == TokenKind::RightCurly) { | |||
| 12267 | break; | |||
| 12268 | } | |||
| 12269 | ||||
| 12270 | if (tt == TokenKind::TripleDot) { | |||
| 12271 | tokenStream.consumeKnownToken(TokenKind::TripleDot); | |||
| 12272 | uint32_t begin = pos().begin; | |||
| 12273 | ||||
| 12274 | TokenPos innerPos; | |||
| 12275 | if (!tokenStream.peekTokenPos(&innerPos, TokenStream::SlashIsRegExp)) { | |||
| 12276 | return errorResult(); | |||
| 12277 | } | |||
| 12278 | ||||
| 12279 | PossibleError possibleErrorInner(*this); | |||
| 12280 | Node inner; | |||
| 12281 | MOZ_TRY_VAR(inner, assignExpr(InAllowed, yieldHandling,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12282 | TripledotProhibited, &possibleErrorInner))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12283 | if (!checkDestructuringAssignmentTarget( | |||
| 12284 | inner, innerPos, &possibleErrorInner, possibleError, | |||
| 12285 | TargetBehavior::ForbidAssignmentPattern)) { | |||
| 12286 | return errorResult(); | |||
| 12287 | } | |||
| 12288 | if (!handler_.addSpreadProperty(literal, begin, inner)) { | |||
| 12289 | return errorResult(); | |||
| 12290 | } | |||
| 12291 | } else { | |||
| 12292 | TokenPos namePos = anyChars.nextToken().pos; | |||
| 12293 | ||||
| 12294 | PropertyType propType; | |||
| 12295 | Node propName; | |||
| 12296 | MOZ_TRY_VAR(propName, propertyOrMethodName(do { auto mozTryVarTempResult_ = (propertyOrMethodName( yieldHandling , PropertyNameInLiteral, declKind, literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12297 | yieldHandling, PropertyNameInLiteral, declKind,do { auto mozTryVarTempResult_ = (propertyOrMethodName( yieldHandling , PropertyNameInLiteral, declKind, literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12298 | literal, &propType, &propAtom))do { auto mozTryVarTempResult_ = (propertyOrMethodName( yieldHandling , PropertyNameInLiteral, declKind, literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12299 | ||||
| 12300 | if (propType == PropertyType::Normal) { | |||
| 12301 | TokenPos exprPos; | |||
| 12302 | if (!tokenStream.peekTokenPos(&exprPos, TokenStream::SlashIsRegExp)) { | |||
| 12303 | return errorResult(); | |||
| 12304 | } | |||
| 12305 | ||||
| 12306 | PossibleError possibleErrorInner(*this); | |||
| 12307 | Node propExpr; | |||
| 12308 | MOZ_TRY_VAR(propExpr,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap() ; } while (0) | |||
| 12309 | assignExpr(InAllowed, yieldHandling, TripledotProhibited,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap() ; } while (0) | |||
| 12310 | &possibleErrorInner))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 12311 | ||||
| 12312 | if (!checkDestructuringAssignmentElement( | |||
| 12313 | propExpr, exprPos, &possibleErrorInner, possibleError)) { | |||
| 12314 | return errorResult(); | |||
| 12315 | } | |||
| 12316 | ||||
| 12317 | if (propAtom == TaggedParserAtomIndex::WellKnown::proto_()) { | |||
| 12318 | if (seenPrototypeMutation) { | |||
| 12319 | // Directly report the error when we're definitely not | |||
| 12320 | // in a destructuring context. | |||
| 12321 | if (!possibleError) { | |||
| 12322 | errorAt(namePos.begin, JSMSG_DUPLICATE_PROTO_PROPERTY); | |||
| 12323 | return errorResult(); | |||
| 12324 | } | |||
| 12325 | ||||
| 12326 | // Otherwise delay error reporting until we've | |||
| 12327 | // determined whether or not we're destructuring. | |||
| 12328 | possibleError->setPendingExpressionErrorAt( | |||
| 12329 | namePos, JSMSG_DUPLICATE_PROTO_PROPERTY); | |||
| 12330 | } | |||
| 12331 | seenPrototypeMutation = true; | |||
| 12332 | ||||
| 12333 | // This occurs *only* if we observe PropertyType::Normal! | |||
| 12334 | // Only |__proto__: v| mutates [[Prototype]]. Getters, | |||
| 12335 | // setters, method/generator definitions, computed | |||
| 12336 | // property name versions of all of these, and shorthands | |||
| 12337 | // do not. | |||
| 12338 | if (!handler_.addPrototypeMutation(literal, namePos.begin, | |||
| 12339 | propExpr)) { | |||
| 12340 | return errorResult(); | |||
| 12341 | } | |||
| 12342 | } else { | |||
| 12343 | BinaryNodeType propDef; | |||
| 12344 | MOZ_TRY_VAR(propDef,do { auto mozTryVarTempResult_ = (handler_.newPropertyDefinition (propName, propExpr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propDef) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12345 | handler_.newPropertyDefinition(propName, propExpr))do { auto mozTryVarTempResult_ = (handler_.newPropertyDefinition (propName, propExpr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propDef) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12346 | ||||
| 12347 | handler_.addPropertyDefinition(literal, propDef); | |||
| 12348 | } | |||
| 12349 | } else if (propType == PropertyType::Shorthand) { | |||
| 12350 | /* | |||
| 12351 | * Support, e.g., |({x, y} = o)| as destructuring shorthand | |||
| 12352 | * for |({x: x, y: y} = o)|, and |var o = {x, y}| as | |||
| 12353 | * initializer shorthand for |var o = {x: x, y: y}|. | |||
| 12354 | */ | |||
| 12355 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
| 12356 | if (!name) { | |||
| 12357 | return errorResult(); | |||
| 12358 | } | |||
| 12359 | ||||
| 12360 | NameNodeType nameExpr; | |||
| 12361 | MOZ_TRY_VAR(nameExpr, identifierReference(name))do { auto mozTryVarTempResult_ = (identifierReference(name)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nameExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12362 | ||||
| 12363 | if (possibleError) { | |||
| 12364 | checkDestructuringAssignmentName(nameExpr, namePos, possibleError); | |||
| 12365 | } | |||
| 12366 | ||||
| 12367 | if (!handler_.addShorthand(literal, handler_.asNameNode(propName), | |||
| 12368 | nameExpr)) { | |||
| 12369 | return errorResult(); | |||
| 12370 | } | |||
| 12371 | } else if (propType == PropertyType::CoverInitializedName) { | |||
| 12372 | /* | |||
| 12373 | * Support, e.g., |({x=1, y=2} = o)| as destructuring | |||
| 12374 | * shorthand with default values, as per ES6 12.14.5 | |||
| 12375 | */ | |||
| 12376 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
| 12377 | if (!name) { | |||
| 12378 | return errorResult(); | |||
| 12379 | } | |||
| 12380 | ||||
| 12381 | Node lhs; | |||
| 12382 | MOZ_TRY_VAR(lhs, identifierReference(name))do { auto mozTryVarTempResult_ = (identifierReference(name)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (lhs) = mozTryVarTempResult_ .unwrap(); } while (0); | |||
| 12383 | ||||
| 12384 | tokenStream.consumeKnownToken(TokenKind::Assign); | |||
| 12385 | ||||
| 12386 | if (!seenCoverInitializedName) { | |||
| 12387 | // "shorthand default" or "CoverInitializedName" syntax is | |||
| 12388 | // only valid in the case of destructuring. | |||
| 12389 | seenCoverInitializedName = true; | |||
| 12390 | ||||
| 12391 | if (!possibleError) { | |||
| 12392 | // Destructuring defaults are definitely not allowed | |||
| 12393 | // in this object literal, because of something the | |||
| 12394 | // caller knows about the preceding code. For example, | |||
| 12395 | // maybe the preceding token is an operator: | |||
| 12396 | // |x + {y=z}|. | |||
| 12397 | error(JSMSG_COLON_AFTER_ID); | |||
| 12398 | return errorResult(); | |||
| 12399 | } | |||
| 12400 | ||||
| 12401 | // Here we set a pending error so that later in the parse, | |||
| 12402 | // once we've determined whether or not we're | |||
| 12403 | // destructuring, the error can be reported or ignored | |||
| 12404 | // appropriately. | |||
| 12405 | possibleError->setPendingExpressionErrorAt(pos(), | |||
| 12406 | JSMSG_COLON_AFTER_ID); | |||
| 12407 | } | |||
| 12408 | ||||
| 12409 | if (const char* chars = nameIsArgumentsOrEval(lhs)) { | |||
| 12410 | // |chars| is "arguments" or "eval" here. | |||
| 12411 | if (!strictModeErrorAt(namePos.begin, JSMSG_BAD_STRICT_ASSIGN, | |||
| 12412 | chars)) { | |||
| 12413 | return errorResult(); | |||
| 12414 | } | |||
| 12415 | } | |||
| 12416 | ||||
| 12417 | if (handler_.isArgumentsLength(lhs)) { | |||
| 12418 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
| 12419 | } | |||
| 12420 | ||||
| 12421 | Node rhs; | |||
| 12422 | MOZ_TRY_VAR(rhs,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (rhs) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12423 | assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (rhs) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12424 | ||||
| 12425 | BinaryNodeType propExpr; | |||
| 12426 | MOZ_TRY_VAR(propExpr, handler_.newAssignment(ParseNodeKind::AssignExpr,do { auto mozTryVarTempResult_ = (handler_.newAssignment(ParseNodeKind ::AssignExpr, lhs, rhs)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12427 | lhs, rhs))do { auto mozTryVarTempResult_ = (handler_.newAssignment(ParseNodeKind ::AssignExpr, lhs, rhs)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12428 | ||||
| 12429 | if (!handler_.addPropertyDefinition(literal, propName, propExpr)) { | |||
| 12430 | return errorResult(); | |||
| 12431 | } | |||
| 12432 | } else { | |||
| 12433 | TaggedParserAtomIndex funName; | |||
| 12434 | bool hasStaticName = | |||
| 12435 | !anyChars.isCurrentTokenType(TokenKind::RightBracket) && propAtom; | |||
| 12436 | if (hasStaticName) { | |||
| 12437 | funName = propAtom; | |||
| 12438 | ||||
| 12439 | if (propType == PropertyType::Getter || | |||
| 12440 | propType == PropertyType::Setter) { | |||
| 12441 | funName = prefixAccessorName(propType, propAtom); | |||
| 12442 | if (!funName) { | |||
| 12443 | return errorResult(); | |||
| 12444 | } | |||
| 12445 | } | |||
| 12446 | } | |||
| 12447 | ||||
| 12448 | FunctionNodeType funNode; | |||
| 12449 | MOZ_TRY_VAR(funNode,do { auto mozTryVarTempResult_ = (methodDefinition(namePos.begin , propType, funName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12450 | methodDefinition(namePos.begin, propType, funName))do { auto mozTryVarTempResult_ = (methodDefinition(namePos.begin , propType, funName)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12451 | ||||
| 12452 | AccessorType atype = ToAccessorType(propType); | |||
| 12453 | if (!handler_.addObjectMethodDefinition(literal, propName, funNode, | |||
| 12454 | atype)) { | |||
| 12455 | return errorResult(); | |||
| 12456 | } | |||
| 12457 | ||||
| 12458 | if (possibleError) { | |||
| 12459 | possibleError->setPendingDestructuringErrorAt( | |||
| 12460 | namePos, JSMSG_BAD_DESTRUCT_TARGET); | |||
| 12461 | } | |||
| 12462 | } | |||
| 12463 | } | |||
| 12464 | ||||
| 12465 | bool matched; | |||
| 12466 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 12467 | TokenStream::SlashIsInvalid)) { | |||
| 12468 | return errorResult(); | |||
| 12469 | } | |||
| 12470 | if (!matched) { | |||
| 12471 | break; | |||
| 12472 | } | |||
| 12473 | if (tt == TokenKind::TripleDot && possibleError) { | |||
| 12474 | possibleError->setPendingDestructuringErrorAt(pos(), | |||
| 12475 | JSMSG_REST_WITH_COMMA); | |||
| 12476 | } | |||
| 12477 | } | |||
| 12478 | ||||
| 12479 | if (!mustMatchToken( | |||
| 12480 | TokenKind::RightCurly, [this, openedPos](TokenKind actual) { | |||
| 12481 | this->reportMissingClosing(JSMSG_CURLY_AFTER_LIST, | |||
| 12482 | JSMSG_CURLY_OPENED, openedPos); | |||
| 12483 | })) { | |||
| 12484 | return errorResult(); | |||
| 12485 | } | |||
| 12486 | ||||
| 12487 | handler_.setEndPosition(literal, pos().end); | |||
| 12488 | return literal; | |||
| 12489 | } | |||
| 12490 | ||||
| 12491 | #ifdef ENABLE_RECORD_TUPLE | |||
| 12492 | template <class ParseHandler, typename Unit> | |||
| 12493 | typename ParseHandler::ListNodeResult | |||
| 12494 | GeneralParser<ParseHandler, Unit>::recordLiteral(YieldHandling yieldHandling) { | |||
| 12495 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::HashCurly))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::HashCurly))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::HashCurly)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::HashCurly)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12495); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::HashCurly)" ")"); do { *((volatile int*)__null) = 12495; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12496 | ||||
| 12497 | uint32_t openedPos = pos().begin; | |||
| 12498 | ||||
| 12499 | ListNodeType literal; | |||
| 12500 | MOZ_TRY_VAR(literal, handler_.newRecordLiteral(pos().begin))do { auto mozTryVarTempResult_ = (handler_.newRecordLiteral(pos ().begin)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (literal ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12501 | ||||
| 12502 | TaggedParserAtomIndex propAtom; | |||
| 12503 | for (;;) { | |||
| 12504 | TokenKind tt; | |||
| 12505 | if (!tokenStream.peekToken(&tt)) { | |||
| 12506 | return errorResult(); | |||
| 12507 | } | |||
| 12508 | if (tt == TokenKind::RightCurly) { | |||
| 12509 | break; | |||
| 12510 | } | |||
| 12511 | ||||
| 12512 | if (tt == TokenKind::TripleDot) { | |||
| 12513 | tokenStream.consumeKnownToken(TokenKind::TripleDot); | |||
| 12514 | uint32_t begin = pos().begin; | |||
| 12515 | ||||
| 12516 | TokenPos innerPos; | |||
| 12517 | if (!tokenStream.peekTokenPos(&innerPos, TokenStream::SlashIsRegExp)) { | |||
| 12518 | return errorResult(); | |||
| 12519 | } | |||
| 12520 | ||||
| 12521 | Node inner; | |||
| 12522 | MOZ_TRY_VAR(inner,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12523 | assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12524 | ||||
| 12525 | if (!handler_.addSpreadProperty(literal, begin, inner)) { | |||
| 12526 | return errorResult(); | |||
| 12527 | } | |||
| 12528 | } else { | |||
| 12529 | TokenPos namePos = anyChars.nextToken().pos; | |||
| 12530 | ||||
| 12531 | PropertyType propType; | |||
| 12532 | Node propName; | |||
| 12533 | MOZ_TRY_VAR(propName,do { auto mozTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInRecord, Nothing(), literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12534 | propertyOrMethodName(yieldHandling, PropertyNameInRecord,do { auto mozTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInRecord, Nothing(), literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12535 | /* maybeDecl */ Nothing(), literal,do { auto mozTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInRecord, Nothing(), literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12536 | &propType, &propAtom))do { auto mozTryVarTempResult_ = (propertyOrMethodName(yieldHandling , PropertyNameInRecord, Nothing(), literal, &propType, & propAtom)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propName ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12537 | ||||
| 12538 | if (propType == PropertyType::Normal) { | |||
| 12539 | TokenPos exprPos; | |||
| 12540 | if (!tokenStream.peekTokenPos(&exprPos, TokenStream::SlashIsRegExp)) { | |||
| 12541 | return errorResult(); | |||
| 12542 | } | |||
| 12543 | ||||
| 12544 | Node propExpr; | |||
| 12545 | MOZ_TRY_VAR(propExpr,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12546 | assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12547 | ||||
| 12548 | if (propAtom == TaggedParserAtomIndex::WellKnown::proto_()) { | |||
| 12549 | errorAt(namePos.begin, JSMSG_RECORD_NO_PROTO); | |||
| 12550 | return errorResult(); | |||
| 12551 | } | |||
| 12552 | ||||
| 12553 | BinaryNodeType propDef; | |||
| 12554 | MOZ_TRY_VAR(propDef,do { auto mozTryVarTempResult_ = (handler_.newPropertyDefinition (propName, propExpr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propDef) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12555 | handler_.newPropertyDefinition(propName, propExpr))do { auto mozTryVarTempResult_ = (handler_.newPropertyDefinition (propName, propExpr)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (propDef) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12556 | ||||
| 12557 | handler_.addPropertyDefinition(literal, propDef); | |||
| 12558 | } else if (propType == PropertyType::Shorthand) { | |||
| 12559 | /* | |||
| 12560 | * Support |var o = #{x, y}| as initializer shorthand for | |||
| 12561 | * |var o = #{x: x, y: y}|. | |||
| 12562 | */ | |||
| 12563 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
| 12564 | if (!name) { | |||
| 12565 | return errorResult(); | |||
| 12566 | } | |||
| 12567 | ||||
| 12568 | NameNodeType nameExpr; | |||
| 12569 | MOZ_TRY_VAR(nameExpr, identifierReference(name))do { auto mozTryVarTempResult_ = (identifierReference(name)); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (nameExpr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12570 | ||||
| 12571 | if (!handler_.addShorthand(literal, handler_.asNameNode(propName), | |||
| 12572 | nameExpr)) { | |||
| 12573 | return errorResult(); | |||
| 12574 | } | |||
| 12575 | } else { | |||
| 12576 | error(JSMSG_BAD_PROP_ID); | |||
| 12577 | return errorResult(); | |||
| 12578 | } | |||
| 12579 | } | |||
| 12580 | ||||
| 12581 | bool matched; | |||
| 12582 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 12583 | TokenStream::SlashIsInvalid)) { | |||
| 12584 | return errorResult(); | |||
| 12585 | } | |||
| 12586 | if (!matched) { | |||
| 12587 | break; | |||
| 12588 | } | |||
| 12589 | } | |||
| 12590 | ||||
| 12591 | if (!mustMatchToken( | |||
| 12592 | TokenKind::RightCurly, [this, openedPos](TokenKind actual) { | |||
| 12593 | this->reportMissingClosing(JSMSG_CURLY_AFTER_LIST, | |||
| 12594 | JSMSG_CURLY_OPENED, openedPos); | |||
| 12595 | })) { | |||
| 12596 | return errorResult(); | |||
| 12597 | } | |||
| 12598 | ||||
| 12599 | handler_.setEndPosition(literal, pos().end); | |||
| 12600 | return literal; | |||
| 12601 | } | |||
| 12602 | ||||
| 12603 | template <class ParseHandler, typename Unit> | |||
| 12604 | typename ParseHandler::ListNodeResult | |||
| 12605 | GeneralParser<ParseHandler, Unit>::tupleLiteral(YieldHandling yieldHandling) { | |||
| 12606 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::HashBracket))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::HashBracket)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::HashBracket)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::HashBracket)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12606); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::HashBracket)" ")"); do { *((volatile int*)__null) = 12606; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12607 | ||||
| 12608 | uint32_t begin = pos().begin; | |||
| 12609 | ListNodeType literal; | |||
| 12610 | MOZ_TRY_VAR(literal, handler_.newTupleLiteral(begin))do { auto mozTryVarTempResult_ = (handler_.newTupleLiteral(begin )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (literal) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12611 | ||||
| 12612 | for (uint32_t index = 0;; index++) { | |||
| 12613 | if (index >= NativeObject::MAX_DENSE_ELEMENTS_COUNT) { | |||
| 12614 | error(JSMSG_ARRAY_INIT_TOO_BIG); | |||
| 12615 | return errorResult(); | |||
| 12616 | } | |||
| 12617 | ||||
| 12618 | TokenKind tt; | |||
| 12619 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
| 12620 | return errorResult(); | |||
| 12621 | } | |||
| 12622 | if (tt == TokenKind::RightBracket) { | |||
| 12623 | break; | |||
| 12624 | } | |||
| 12625 | ||||
| 12626 | if (tt == TokenKind::TripleDot) { | |||
| 12627 | tokenStream.consumeKnownToken(TokenKind::TripleDot, | |||
| 12628 | TokenStream::SlashIsRegExp); | |||
| 12629 | uint32_t begin = pos().begin; | |||
| 12630 | ||||
| 12631 | TokenPos innerPos; | |||
| 12632 | if (!tokenStream.peekTokenPos(&innerPos, TokenStream::SlashIsRegExp)) { | |||
| 12633 | return errorResult(); | |||
| 12634 | } | |||
| 12635 | ||||
| 12636 | Node inner; | |||
| 12637 | MOZ_TRY_VAR(inner,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12638 | assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12639 | ||||
| 12640 | if (!handler_.addSpreadElement(literal, begin, inner)) { | |||
| 12641 | return errorResult(); | |||
| 12642 | } | |||
| 12643 | } else { | |||
| 12644 | TokenPos elementPos; | |||
| 12645 | if (!tokenStream.peekTokenPos(&elementPos, TokenStream::SlashIsRegExp)) { | |||
| 12646 | return errorResult(); | |||
| 12647 | } | |||
| 12648 | ||||
| 12649 | Node element; | |||
| 12650 | MOZ_TRY_VAR(element,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (element) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12651 | assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (element) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12652 | handler_.addArrayElement(literal, element); | |||
| 12653 | } | |||
| 12654 | ||||
| 12655 | bool matched; | |||
| 12656 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
| 12657 | TokenStream::SlashIsRegExp)) { | |||
| 12658 | return errorResult(); | |||
| 12659 | } | |||
| 12660 | if (!matched) { | |||
| 12661 | break; | |||
| 12662 | } | |||
| 12663 | } | |||
| 12664 | ||||
| 12665 | if (!mustMatchToken(TokenKind::RightBracket, [this, begin](TokenKind actual) { | |||
| 12666 | this->reportMissingClosing(JSMSG_BRACKET_AFTER_LIST, | |||
| 12667 | JSMSG_BRACKET_OPENED, begin); | |||
| 12668 | })) { | |||
| 12669 | return errorResult(); | |||
| 12670 | } | |||
| 12671 | ||||
| 12672 | handler_.setEndPosition(literal, pos().end); | |||
| 12673 | return literal; | |||
| 12674 | } | |||
| 12675 | #endif | |||
| 12676 | ||||
| 12677 | template <class ParseHandler, typename Unit> | |||
| 12678 | typename ParseHandler::FunctionNodeResult | |||
| 12679 | GeneralParser<ParseHandler, Unit>::methodDefinition( | |||
| 12680 | uint32_t toStringStart, PropertyType propType, | |||
| 12681 | TaggedParserAtomIndex funName) { | |||
| 12682 | FunctionSyntaxKind syntaxKind; | |||
| 12683 | switch (propType) { | |||
| 12684 | case PropertyType::Getter: | |||
| 12685 | syntaxKind = FunctionSyntaxKind::Getter; | |||
| 12686 | break; | |||
| 12687 | ||||
| 12688 | case PropertyType::Setter: | |||
| 12689 | syntaxKind = FunctionSyntaxKind::Setter; | |||
| 12690 | break; | |||
| 12691 | ||||
| 12692 | case PropertyType::Method: | |||
| 12693 | case PropertyType::GeneratorMethod: | |||
| 12694 | case PropertyType::AsyncMethod: | |||
| 12695 | case PropertyType::AsyncGeneratorMethod: | |||
| 12696 | syntaxKind = FunctionSyntaxKind::Method; | |||
| 12697 | break; | |||
| 12698 | ||||
| 12699 | case PropertyType::Constructor: | |||
| 12700 | syntaxKind = FunctionSyntaxKind::ClassConstructor; | |||
| 12701 | break; | |||
| 12702 | ||||
| 12703 | case PropertyType::DerivedConstructor: | |||
| 12704 | syntaxKind = FunctionSyntaxKind::DerivedClassConstructor; | |||
| 12705 | break; | |||
| 12706 | ||||
| 12707 | default: | |||
| 12708 | MOZ_CRASH("unexpected property type")do { do { } while (false); MOZ_ReportCrash("" "unexpected property type" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12708); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected property type" ")"); do { *((volatile int*)__null) = 12708; __attribute__(( nomerge)) ::abort(); } while (false); } while (false); | |||
| 12709 | } | |||
| 12710 | ||||
| 12711 | GeneratorKind generatorKind = (propType == PropertyType::GeneratorMethod || | |||
| 12712 | propType == PropertyType::AsyncGeneratorMethod) | |||
| 12713 | ? GeneratorKind::Generator | |||
| 12714 | : GeneratorKind::NotGenerator; | |||
| 12715 | ||||
| 12716 | FunctionAsyncKind asyncKind = (propType == PropertyType::AsyncMethod || | |||
| 12717 | propType == PropertyType::AsyncGeneratorMethod) | |||
| 12718 | ? FunctionAsyncKind::AsyncFunction | |||
| 12719 | : FunctionAsyncKind::SyncFunction; | |||
| 12720 | ||||
| 12721 | YieldHandling yieldHandling = GetYieldHandling(generatorKind); | |||
| 12722 | ||||
| 12723 | FunctionNodeType funNode; | |||
| 12724 | MOZ_TRY_VAR(funNode, handler_.newFunction(syntaxKind, pos()))do { auto mozTryVarTempResult_ = (handler_.newFunction(syntaxKind , pos())); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr ()), 0))) { return mozTryVarTempResult_.propagateErr(); } (funNode ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12725 | ||||
| 12726 | return functionDefinition(funNode, toStringStart, InAllowed, yieldHandling, | |||
| 12727 | funName, syntaxKind, generatorKind, asyncKind); | |||
| 12728 | } | |||
| 12729 | ||||
| 12730 | template <class ParseHandler, typename Unit> | |||
| 12731 | bool GeneralParser<ParseHandler, Unit>::tryNewTarget( | |||
| 12732 | NewTargetNodeType* newTarget) { | |||
| 12733 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::New))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::New))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(anyChars.isCurrentTokenType(TokenKind::New)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::New)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12733); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::New)" ")"); do { *((volatile int*)__null) = 12733; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12734 | ||||
| 12735 | *newTarget = null(); | |||
| 12736 | ||||
| 12737 | NullaryNodeType newHolder; | |||
| 12738 | MOZ_TRY_VAR_OR_RETURN(newHolder, handler_.newPosHolder(pos()), false)do { auto parserTryVarTempResult_ = (handler_.newPosHolder(pos ())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr( )), 0))) { return (false); } (newHolder) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 12739 | ||||
| 12740 | uint32_t begin = pos().begin; | |||
| 12741 | ||||
| 12742 | // |new| expects to look for an operand, so we will honor that. | |||
| 12743 | TokenKind next; | |||
| 12744 | if (!tokenStream.getToken(&next, TokenStream::SlashIsRegExp)) { | |||
| 12745 | return false; | |||
| 12746 | } | |||
| 12747 | ||||
| 12748 | // Don't unget the token, since lookahead cannot handle someone calling | |||
| 12749 | // getToken() with a different modifier. Callers should inspect | |||
| 12750 | // currentToken(). | |||
| 12751 | if (next != TokenKind::Dot) { | |||
| 12752 | return true; | |||
| 12753 | } | |||
| 12754 | ||||
| 12755 | if (!tokenStream.getToken(&next)) { | |||
| 12756 | return false; | |||
| 12757 | } | |||
| 12758 | if (next != TokenKind::Target) { | |||
| 12759 | error(JSMSG_UNEXPECTED_TOKEN, "target", TokenKindToDesc(next)); | |||
| 12760 | return false; | |||
| 12761 | } | |||
| 12762 | ||||
| 12763 | if (!pc_->sc()->allowNewTarget()) { | |||
| 12764 | errorAt(begin, JSMSG_BAD_NEWTARGET); | |||
| 12765 | return false; | |||
| 12766 | } | |||
| 12767 | ||||
| 12768 | NullaryNodeType targetHolder; | |||
| 12769 | MOZ_TRY_VAR_OR_RETURN(targetHolder, handler_.newPosHolder(pos()), false)do { auto parserTryVarTempResult_ = (handler_.newPosHolder(pos ())); if ((__builtin_expect(!!(parserTryVarTempResult_.isErr( )), 0))) { return (false); } (targetHolder) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 12770 | ||||
| 12771 | NameNodeType newTargetName; | |||
| 12772 | MOZ_TRY_VAR_OR_RETURN(newTargetName, newNewTargetName(), false)do { auto parserTryVarTempResult_ = (newNewTargetName()); if ( (__builtin_expect(!!(parserTryVarTempResult_.isErr()), 0))) { return (false); } (newTargetName) = parserTryVarTempResult_. unwrap(); } while (0); | |||
| 12773 | ||||
| 12774 | MOZ_TRY_VAR_OR_RETURN(do { auto parserTryVarTempResult_ = (handler_.newNewTarget(newHolder , targetHolder, newTargetName)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (*newTarget) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 12775 | *newTarget, handler_.newNewTarget(newHolder, targetHolder, newTargetName),do { auto parserTryVarTempResult_ = (handler_.newNewTarget(newHolder , targetHolder, newTargetName)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (*newTarget) = parserTryVarTempResult_ .unwrap(); } while (0) | |||
| 12776 | false)do { auto parserTryVarTempResult_ = (handler_.newNewTarget(newHolder , targetHolder, newTargetName)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (*newTarget) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
| 12777 | ||||
| 12778 | return true; | |||
| 12779 | } | |||
| 12780 | ||||
| 12781 | template <class ParseHandler, typename Unit> | |||
| 12782 | typename ParseHandler::BinaryNodeResult | |||
| 12783 | GeneralParser<ParseHandler, Unit>::importExpr(YieldHandling yieldHandling, | |||
| 12784 | bool allowCallSyntax) { | |||
| 12785 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::Import))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::Import))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::Import)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::Import)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12785); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Import)" ")"); do { *((volatile int*)__null) = 12785; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12786 | ||||
| 12787 | NullaryNodeType importHolder; | |||
| 12788 | MOZ_TRY_VAR(importHolder, handler_.newPosHolder(pos()))do { auto mozTryVarTempResult_ = (handler_.newPosHolder(pos() )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (importHolder ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12789 | ||||
| 12790 | TokenKind next; | |||
| 12791 | if (!tokenStream.getToken(&next)) { | |||
| 12792 | return errorResult(); | |||
| 12793 | } | |||
| 12794 | ||||
| 12795 | if (next == TokenKind::Dot) { | |||
| 12796 | if (!tokenStream.getToken(&next)) { | |||
| 12797 | return errorResult(); | |||
| 12798 | } | |||
| 12799 | if (next != TokenKind::Meta) { | |||
| 12800 | error(JSMSG_UNEXPECTED_TOKEN, "meta", TokenKindToDesc(next)); | |||
| 12801 | return errorResult(); | |||
| 12802 | } | |||
| 12803 | ||||
| 12804 | if (parseGoal() != ParseGoal::Module) { | |||
| 12805 | errorAt(pos().begin, JSMSG_IMPORT_META_OUTSIDE_MODULE); | |||
| 12806 | return errorResult(); | |||
| 12807 | } | |||
| 12808 | ||||
| 12809 | NullaryNodeType metaHolder; | |||
| 12810 | MOZ_TRY_VAR(metaHolder, handler_.newPosHolder(pos()))do { auto mozTryVarTempResult_ = (handler_.newPosHolder(pos() )); if ((__builtin_expect(!!(mozTryVarTempResult_.isErr()), 0 ))) { return mozTryVarTempResult_.propagateErr(); } (metaHolder ) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12811 | ||||
| 12812 | return handler_.newImportMeta(importHolder, metaHolder); | |||
| 12813 | } | |||
| 12814 | ||||
| 12815 | if (next == TokenKind::LeftParen && allowCallSyntax) { | |||
| 12816 | Node arg; | |||
| 12817 | MOZ_TRY_VAR(arg, assignExpr(InAllowed, yieldHandling, TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (arg) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12818 | ||||
| 12819 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
| 12820 | return errorResult(); | |||
| 12821 | } | |||
| 12822 | ||||
| 12823 | Node optionalArg; | |||
| 12824 | if (options().importAttributes()) { | |||
| 12825 | if (next == TokenKind::Comma) { | |||
| 12826 | tokenStream.consumeKnownToken(TokenKind::Comma, | |||
| 12827 | TokenStream::SlashIsRegExp); | |||
| 12828 | ||||
| 12829 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
| 12830 | return errorResult(); | |||
| 12831 | } | |||
| 12832 | ||||
| 12833 | if (next != TokenKind::RightParen) { | |||
| 12834 | MOZ_TRY_VAR(optionalArg, assignExpr(InAllowed, yieldHandling,do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12835 | TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12836 | ||||
| 12837 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
| 12838 | return errorResult(); | |||
| 12839 | } | |||
| 12840 | ||||
| 12841 | if (next == TokenKind::Comma) { | |||
| 12842 | tokenStream.consumeKnownToken(TokenKind::Comma, | |||
| 12843 | TokenStream::SlashIsRegExp); | |||
| 12844 | } | |||
| 12845 | } else { | |||
| 12846 | MOZ_TRY_VAR(optionalArg,do { auto mozTryVarTempResult_ = (handler_.newPosHolder(TokenPos (pos().end, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12847 | handler_.newPosHolder(TokenPos(pos().end, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newPosHolder(TokenPos (pos().end, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12848 | } | |||
| 12849 | } else { | |||
| 12850 | MOZ_TRY_VAR(optionalArg,do { auto mozTryVarTempResult_ = (handler_.newPosHolder(TokenPos (pos().end, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12851 | handler_.newPosHolder(TokenPos(pos().end, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newPosHolder(TokenPos (pos().end, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12852 | } | |||
| 12853 | } else { | |||
| 12854 | MOZ_TRY_VAR(optionalArg,do { auto mozTryVarTempResult_ = (handler_.newPosHolder(TokenPos (pos().end, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12855 | handler_.newPosHolder(TokenPos(pos().end, pos().end)))do { auto mozTryVarTempResult_ = (handler_.newPosHolder(TokenPos (pos().end, pos().end))); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12856 | } | |||
| 12857 | ||||
| 12858 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_ARGS)) { | |||
| 12859 | return errorResult(); | |||
| 12860 | } | |||
| 12861 | ||||
| 12862 | Node spec; | |||
| 12863 | MOZ_TRY_VAR(spec, handler_.newCallImportSpec(arg, optionalArg))do { auto mozTryVarTempResult_ = (handler_.newCallImportSpec( arg, optionalArg)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (spec) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12864 | ||||
| 12865 | return handler_.newCallImport(importHolder, spec); | |||
| 12866 | } | |||
| 12867 | ||||
| 12868 | error(JSMSG_UNEXPECTED_TOKEN_NO_EXPECT, TokenKindToDesc(next)); | |||
| 12869 | return errorResult(); | |||
| 12870 | } | |||
| 12871 | ||||
| 12872 | template <class ParseHandler, typename Unit> | |||
| 12873 | typename ParseHandler::NodeResult | |||
| 12874 | GeneralParser<ParseHandler, Unit>::primaryExpr( | |||
| 12875 | YieldHandling yieldHandling, TripledotHandling tripledotHandling, | |||
| 12876 | TokenKind tt, PossibleError* possibleError, InvokedPrediction invoked) { | |||
| 12877 | MOZ_ASSERT(anyChars.isCurrentTokenType(tt))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(tt))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(anyChars.isCurrentTokenType( tt)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("anyChars.isCurrentTokenType(tt)", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 12877); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(tt)" ")"); do { *((volatile int*)__null) = 12877; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 12878 | AutoCheckRecursionLimit recursion(this->fc_); | |||
| 12879 | if (!recursion.check(this->fc_)) { | |||
| 12880 | return errorResult(); | |||
| 12881 | } | |||
| 12882 | ||||
| 12883 | switch (tt) { | |||
| 12884 | case TokenKind::Function: | |||
| 12885 | return functionExpr(pos().begin, invoked, | |||
| 12886 | FunctionAsyncKind::SyncFunction); | |||
| 12887 | ||||
| 12888 | case TokenKind::Class: | |||
| 12889 | return classDefinition(yieldHandling, ClassExpression, NameRequired); | |||
| 12890 | ||||
| 12891 | case TokenKind::LeftBracket: | |||
| 12892 | return arrayInitializer(yieldHandling, possibleError); | |||
| 12893 | ||||
| 12894 | case TokenKind::LeftCurly: | |||
| 12895 | return objectLiteral(yieldHandling, possibleError); | |||
| 12896 | ||||
| 12897 | #ifdef ENABLE_RECORD_TUPLE | |||
| 12898 | case TokenKind::HashCurly: | |||
| 12899 | return recordLiteral(yieldHandling); | |||
| 12900 | ||||
| 12901 | case TokenKind::HashBracket: | |||
| 12902 | return tupleLiteral(yieldHandling); | |||
| 12903 | #endif | |||
| 12904 | ||||
| 12905 | #ifdef ENABLE_DECORATORS | |||
| 12906 | case TokenKind::At: | |||
| 12907 | return classDefinition(yieldHandling, ClassExpression, NameRequired); | |||
| 12908 | #endif | |||
| 12909 | ||||
| 12910 | case TokenKind::LeftParen: { | |||
| 12911 | TokenKind next; | |||
| 12912 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
| 12913 | return errorResult(); | |||
| 12914 | } | |||
| 12915 | ||||
| 12916 | if (next == TokenKind::RightParen) { | |||
| 12917 | // Not valid expression syntax, but this is valid in an arrow function | |||
| 12918 | // with no params: `() => body`. | |||
| 12919 | tokenStream.consumeKnownToken(TokenKind::RightParen, | |||
| 12920 | TokenStream::SlashIsRegExp); | |||
| 12921 | ||||
| 12922 | if (!tokenStream.peekToken(&next)) { | |||
| 12923 | return errorResult(); | |||
| 12924 | } | |||
| 12925 | if (next != TokenKind::Arrow) { | |||
| 12926 | error(JSMSG_UNEXPECTED_TOKEN, "expression", | |||
| 12927 | TokenKindToDesc(TokenKind::RightParen)); | |||
| 12928 | return errorResult(); | |||
| 12929 | } | |||
| 12930 | ||||
| 12931 | // Now just return something that will allow parsing to continue. | |||
| 12932 | // It doesn't matter what; when we reach the =>, we will rewind and | |||
| 12933 | // reparse the whole arrow function. See Parser::assignExpr. | |||
| 12934 | return handler_.newNullLiteral(pos()); | |||
| 12935 | } | |||
| 12936 | ||||
| 12937 | // Pass |possibleError| to support destructuring in arrow parameters. | |||
| 12938 | Node expr; | |||
| 12939 | MOZ_TRY_VAR(expr, exprInParens(InAllowed, yieldHandling, TripledotAllowed,do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotAllowed, possibleError)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (expr) = mozTryVarTempResult_.unwrap(); } while (0) | |||
| 12940 | possibleError))do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotAllowed, possibleError)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (expr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
| 12941 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_IN_PAREN)) { | |||
| 12942 | return errorResult(); | |||
| 12943 | } | |||
| 12944 | return handler_.parenthesize(expr); | |||
| 12945 | } | |||
| 12946 | ||||
| 12947 | case TokenKind::TemplateHead: | |||
| 12948 | return templateLiteral(yieldHandling); | |||
| 12949 | ||||
| 12950 | case TokenKind::NoSubsTemplate: | |||
| 12951 | return noSubstitutionUntaggedTemplate(); | |||
| 12952 | ||||
| 12953 | case TokenKind::String: | |||
| 12954 | return stringLiteral(); | |||
| 12955 | ||||
| 12956 | default: { | |||
| 12957 | if (!TokenKindIsPossibleIdentifier(tt)) { | |||
| 12958 | error(JSMSG_UNEXPECTED_TOKEN, "expression", TokenKindToDesc(tt)); | |||
| 12959 | return errorResult(); | |||
| 12960 | } | |||
| 12961 | ||||
| 12962 | if (tt == TokenKind::Async) { | |||
| 12963 | TokenKind nextSameLine = TokenKind::Eof; | |||
| 12964 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
| 12965 | return errorResult(); | |||
| 12966 | } | |||
| 12967 | ||||
| 12968 | if (nextSameLine == TokenKind::Function) { | |||
| 12969 | uint32_t toStringStart = pos().begin; | |||
| 12970 | tokenStream.consumeKnownToken(TokenKind::Function); | |||
| 12971 | return functionExpr(toStringStart, PredictUninvoked, | |||
| 12972 | FunctionAsyncKind::AsyncFunction); | |||
| 12973 | } | |||
| 12974 | } | |||
| 12975 | ||||
| 12976 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
| 12977 | if (!name) { | |||
| 12978 | return errorResult(); | |||
| 12979 | } | |||
| 12980 | ||||
| 12981 | return identifierReference(name); | |||
| 12982 | } | |||
| 12983 | ||||
| 12984 | case TokenKind::RegExp: | |||
| 12985 | return newRegExp(); | |||
| 12986 | ||||
| 12987 | case TokenKind::Number: | |||
| 12988 | return newNumber(anyChars.currentToken()); | |||
| 12989 | ||||
| 12990 | case TokenKind::BigInt: | |||
| 12991 | return newBigInt(); | |||
| 12992 | ||||
| 12993 | case TokenKind::True: | |||
| 12994 | return handler_.newBooleanLiteral(true, pos()); | |||
| 12995 | case TokenKind::False: | |||
| 12996 | return handler_.newBooleanLiteral(false, pos()); | |||
| 12997 | case TokenKind::This: { | |||
| 12998 | NameNodeType thisName = null(); | |||
| 12999 | if (pc_->sc()->hasFunctionThisBinding()) { | |||
| 13000 | MOZ_TRY_VAR(thisName, newThisName())do { auto mozTryVarTempResult_ = (newThisName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (thisName) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
| 13001 | } | |||
| 13002 | return handler_.newThisLiteral(pos(), thisName); | |||
| 13003 | } | |||
| 13004 | case TokenKind::Null: | |||
| 13005 | return handler_.newNullLiteral(pos()); | |||
| 13006 | ||||
| 13007 | case TokenKind::TripleDot: { | |||
| 13008 | // This isn't valid expression syntax, but it's valid in an arrow | |||
| 13009 | // function as a trailing rest param: `(a, b, ...rest) => body`. Check | |||
| 13010 | // if it's directly under | |||
| 13011 | // CoverParenthesizedExpressionAndArrowParameterList, and check for a | |||
| 13012 | // name, closing parenthesis, and arrow, and allow it only if all are | |||
| 13013 | // present. | |||
| 13014 | if (tripledotHandling != TripledotAllowed) { | |||
| 13015 | error(JSMSG_UNEXPECTED_TOKEN, "expression", TokenKindToDesc(tt)); | |||
| 13016 | return errorResult(); | |||
| 13017 | } | |||
| 13018 | ||||
| 13019 | TokenKind next; | |||
| 13020 | if (!tokenStream.getToken(&next)) { | |||
| 13021 | return errorResult(); | |||
| 13022 | } | |||
| 13023 | ||||
| 13024 | if (next == TokenKind::LeftBracket || next == TokenKind::LeftCurly) { | |||
| 13025 | // Validate, but don't store the pattern right now. The whole arrow | |||
| 13026 | // function is reparsed in functionFormalParametersAndBody(). | |||
| 13027 | MOZ_TRY(destructuringDeclaration(DeclarationKind::CoverArrowParameter,do { auto mozTryTempResult_ = ::mozilla::ToResult(destructuringDeclaration (DeclarationKind::CoverArrowParameter, yieldHandling, next)); if ((__builtin_expect(!!(mozTryTempResult_.isErr()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) | |||
| 13028 | yieldHandling, next))do { auto mozTryTempResult_ = ::mozilla::ToResult(destructuringDeclaration (DeclarationKind::CoverArrowParameter, yieldHandling, next)); if ((__builtin_expect(!!(mozTryTempResult_.isErr()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0); | |||
| 13029 | } else { | |||
| 13030 | // This doesn't check that the provided name is allowed, e.g. if | |||
| 13031 | // the enclosing code is strict mode code, any of "let", "yield", | |||
| 13032 | // or "arguments" should be prohibited. Argument-parsing code | |||
| 13033 | // handles that. | |||
| 13034 | if (!TokenKindIsPossibleIdentifier(next)) { | |||
| 13035 | error(JSMSG_UNEXPECTED_TOKEN, "rest argument name", | |||
| 13036 | TokenKindToDesc(next)); | |||
| 13037 | return errorResult(); | |||
| 13038 | } | |||
| 13039 | } | |||
| 13040 | ||||
| 13041 | if (!tokenStream.getToken(&next)) { | |||
| 13042 | return errorResult(); | |||
| 13043 | } | |||
| 13044 | if (next != TokenKind::RightParen) { | |||
| 13045 | error(JSMSG_UNEXPECTED_TOKEN, "closing parenthesis", | |||
| 13046 | TokenKindToDesc(next)); | |||
| 13047 | return errorResult(); | |||
| 13048 | } | |||
| 13049 | ||||
| 13050 | if (!tokenStream.peekToken(&next)) { | |||
| 13051 | return errorResult(); | |||
| 13052 | } | |||
| 13053 | if (next != TokenKind::Arrow) { | |||
| 13054 | // Advance the scanner for proper error location reporting. | |||
| 13055 | tokenStream.consumeKnownToken(next); | |||
| 13056 | error(JSMSG_UNEXPECTED_TOKEN, "'=>' after argument list", | |||
| 13057 | TokenKindToDesc(next)); | |||
| 13058 | return errorResult(); | |||
| 13059 | } | |||
| 13060 | ||||
| 13061 | anyChars.ungetToken(); // put back right paren | |||
| 13062 | ||||
| 13063 | // Return an arbitrary expression node. See case TokenKind::RightParen | |||
| 13064 | // above. | |||
| 13065 | return handler_.newNullLiteral(pos()); | |||
| 13066 | } | |||
| 13067 | } | |||
| 13068 | } | |||
| 13069 | ||||
| 13070 | template <class ParseHandler, typename Unit> | |||
| 13071 | typename ParseHandler::NodeResult | |||
| 13072 | GeneralParser<ParseHandler, Unit>::exprInParens( | |||
| 13073 | InHandling inHandling, YieldHandling yieldHandling, | |||
| 13074 | TripledotHandling tripledotHandling, | |||
| 13075 | PossibleError* possibleError /* = nullptr */) { | |||
| 13076 | MOZ_ASSERT(anyChars.isCurrentTokenType(TokenKind::LeftParen))do { static_assert( mozilla::detail::AssertionConditionType< decltype(anyChars.isCurrentTokenType(TokenKind::LeftParen))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(anyChars.isCurrentTokenType(TokenKind::LeftParen)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("anyChars.isCurrentTokenType(TokenKind::LeftParen)" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/frontend/Parser.cpp" , 13076); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftParen)" ")"); do { *((volatile int*)__null) = 13076; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
| 13077 | return expr(inHandling, yieldHandling, tripledotHandling, possibleError, | |||
| 13078 | PredictInvoked); | |||
| 13079 | } | |||
| 13080 | ||||
| 13081 | template class PerHandlerParser<FullParseHandler>; | |||
| 13082 | template class PerHandlerParser<SyntaxParseHandler>; | |||
| 13083 | template class GeneralParser<FullParseHandler, Utf8Unit>; | |||
| 13084 | template class GeneralParser<SyntaxParseHandler, Utf8Unit>; | |||
| 13085 | template class GeneralParser<FullParseHandler, char16_t>; | |||
| 13086 | template class GeneralParser<SyntaxParseHandler, char16_t>; | |||
| 13087 | template class Parser<FullParseHandler, Utf8Unit>; | |||
| 13088 | template class Parser<SyntaxParseHandler, Utf8Unit>; | |||
| 13089 | template class Parser<FullParseHandler, char16_t>; | |||
| 13090 | template class Parser<SyntaxParseHandler, char16_t>; | |||
| 13091 | ||||
| 13092 | } // namespace js::frontend |
| 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |||
| 2 | * vim: set ts=8 sts=2 et sw=2 tw=80: | |||
| 3 | * This Source Code Form is subject to the terms of the Mozilla Public | |||
| 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this | |||
| 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |||
| 6 | ||||
| 7 | #ifndef vm_Scope_h | |||
| 8 | #define vm_Scope_h | |||
| 9 | ||||
| 10 | #include "mozilla/Assertions.h" // MOZ_ASSERT, MOZ_ASSERT_IF | |||
| 11 | #include "mozilla/Attributes.h" // MOZ_IMPLICIT, MOZ_INIT_OUTSIDE_CTOR, MOZ_STACK_CLASS | |||
| 12 | #include "mozilla/Casting.h" // mozilla::AssertedCast | |||
| 13 | #include "mozilla/Maybe.h" // mozilla::Maybe | |||
| 14 | #include "mozilla/MemoryReporting.h" // mozilla::MallocSizeOf | |||
| 15 | #include "mozilla/Span.h" // mozilla::Span | |||
| 16 | ||||
| 17 | #include <algorithm> // std::fill_n | |||
| 18 | #include <stddef.h> // size_t | |||
| 19 | #include <stdint.h> // uint8_t, uint16_t, uint32_t, uintptr_t | |||
| 20 | #include <type_traits> // std::is_same_v, std::is_base_of_v | |||
| 21 | ||||
| 22 | #include "builtin/ModuleObject.h" // ModuleObject, Handle<ModuleObject*> | |||
| 23 | #include "frontend/ParserAtom.h" // frontend::TaggedParserAtomIndex | |||
| 24 | #include "gc/Barrier.h" // HeapPtr | |||
| 25 | #include "gc/Cell.h" // TenuredCellWithNonGCPointer | |||
| 26 | #include "js/GCPolicyAPI.h" // GCPolicy, IgnoreGCPolicy | |||
| 27 | #include "js/HeapAPI.h" // CellFlagBitsReservedForGC | |||
| 28 | #include "js/RootingAPI.h" // Handle, MutableHandle | |||
| 29 | #include "js/TraceKind.h" // JS::TraceKind | |||
| 30 | #include "js/TypeDecls.h" // HandleFunction | |||
| 31 | #include "js/UbiNode.h" // ubi::* | |||
| 32 | #include "js/UniquePtr.h" // UniquePtr | |||
| 33 | #include "util/Poison.h" // AlwaysPoison, JS_SCOPE_DATA_TRAILING_NAMES_PATTERN, MemCheckKind | |||
| 34 | #include "vm/JSFunction.h" // JSFunction | |||
| 35 | #include "vm/ScopeKind.h" // ScopeKind | |||
| 36 | #include "vm/Shape.h" // Shape | |||
| 37 | #include "wasm/WasmJS.h" // WasmInstanceObject | |||
| 38 | ||||
| 39 | class JSAtom; | |||
| 40 | class JSScript; | |||
| 41 | class JSTracer; | |||
| 42 | struct JSContext; | |||
| 43 | ||||
| 44 | namespace js { | |||
| 45 | ||||
| 46 | class JS_PUBLIC_API GenericPrinter; | |||
| 47 | ||||
| 48 | namespace frontend { | |||
| 49 | class ScopeStencil; | |||
| 50 | struct ScopeStencilRef; | |||
| 51 | class RuntimeScopeBindingCache; | |||
| 52 | } // namespace frontend | |||
| 53 | ||||
| 54 | template <typename NameT> | |||
| 55 | class AbstractBaseScopeData; | |||
| 56 | ||||
| 57 | template <typename NameT> | |||
| 58 | class BaseAbstractBindingIter; | |||
| 59 | ||||
| 60 | template <typename NameT> | |||
| 61 | class AbstractBindingIter; | |||
| 62 | ||||
| 63 | template <typename NameT> | |||
| 64 | class AbstractPositionalFormalParameterIter; | |||
| 65 | ||||
| 66 | using BindingIter = AbstractBindingIter<JSAtom>; | |||
| 67 | ||||
| 68 | class AbstractScopePtr; | |||
| 69 | ||||
| 70 | static inline bool ScopeKindIsCatch(ScopeKind kind) { | |||
| 71 | return kind == ScopeKind::SimpleCatch || kind == ScopeKind::Catch; | |||
| 72 | } | |||
| 73 | ||||
| 74 | static inline bool ScopeKindIsInBody(ScopeKind kind) { | |||
| 75 | return kind == ScopeKind::Lexical || kind == ScopeKind::SimpleCatch || | |||
| 76 | kind == ScopeKind::Catch || kind == ScopeKind::With || | |||
| 77 | kind == ScopeKind::FunctionLexical || | |||
| 78 | kind == ScopeKind::FunctionBodyVar || kind == ScopeKind::ClassBody; | |||
| 79 | } | |||
| 80 | ||||
| 81 | const char* BindingKindString(BindingKind kind); | |||
| 82 | const char* ScopeKindString(ScopeKind kind); | |||
| 83 | ||||
| 84 | template <typename NameT> | |||
| 85 | class AbstractBindingName; | |||
| 86 | ||||
| 87 | template <> | |||
| 88 | class AbstractBindingName<JSAtom> { | |||
| 89 | public: | |||
| 90 | using NameT = JSAtom; | |||
| 91 | using NamePointerT = NameT*; | |||
| 92 | ||||
| 93 | private: | |||
| 94 | // A JSAtom* with its low bit used as a tag for the: | |||
| 95 | // * whether it is closed over (i.e., exists in the environment shape) | |||
| 96 | // * whether it is a top-level function binding in global or eval scope, | |||
| 97 | // instead of var binding (both are in the same range in Scope data) | |||
| 98 | uintptr_t bits_; | |||
| 99 | ||||
| 100 | static constexpr uintptr_t ClosedOverFlag = 0x1; | |||
| 101 | // TODO: We should reuse this bit for let vs class distinction to | |||
| 102 | // show the better redeclaration error message (bug 1428672). | |||
| 103 | static constexpr uintptr_t TopLevelFunctionFlag = 0x2; | |||
| 104 | static constexpr uintptr_t FlagMask = 0x3; | |||
| 105 | ||||
| 106 | public: | |||
| 107 | AbstractBindingName() : bits_(0) {} | |||
| 108 | ||||
| 109 | AbstractBindingName(NameT* name, bool closedOver, | |||
| 110 | bool isTopLevelFunction = false) | |||
| 111 | : bits_(uintptr_t(name) | (closedOver ? ClosedOverFlag : 0x0) | | |||
| 112 | (isTopLevelFunction ? TopLevelFunctionFlag : 0x0)) {} | |||
| 113 | ||||
| 114 | NamePointerT name() const { | |||
| 115 | return reinterpret_cast<NameT*>(bits_ & ~FlagMask); | |||
| 116 | } | |||
| 117 | ||||
| 118 | bool closedOver() const { return bits_ & ClosedOverFlag; } | |||
| 119 | ||||
| 120 | private: | |||
| 121 | friend class BaseAbstractBindingIter<NameT>; | |||
| 122 | ||||
| 123 | // This method should be called only for binding names in `vars` range in | |||
| 124 | // BindingIter. | |||
| 125 | bool isTopLevelFunction() const { return bits_ & TopLevelFunctionFlag; } | |||
| 126 | ||||
| 127 | public: | |||
| 128 | void trace(JSTracer* trc) { | |||
| 129 | if (JSAtom* atom = name()) { | |||
| 130 | TraceManuallyBarrieredEdge(trc, &atom, "binding name"); | |||
| 131 | } | |||
| 132 | } | |||
| 133 | }; | |||
| 134 | ||||
| 135 | template <> | |||
| 136 | class AbstractBindingName<frontend::TaggedParserAtomIndex> { | |||
| 137 | uint32_t bits_; | |||
| 138 | ||||
| 139 | using TaggedParserAtomIndex = frontend::TaggedParserAtomIndex; | |||
| 140 | ||||
| 141 | public: | |||
| 142 | using NameT = TaggedParserAtomIndex; | |||
| 143 | using NamePointerT = NameT; | |||
| 144 | ||||
| 145 | private: | |||
| 146 | static constexpr size_t TaggedIndexBit = TaggedParserAtomIndex::IndexBit + 2; | |||
| 147 | ||||
| 148 | static constexpr size_t FlagShift = TaggedIndexBit; | |||
| 149 | static constexpr size_t FlagBit = 2; | |||
| 150 | static constexpr uint32_t FlagMask = BitMask(FlagBit) << FlagShift; | |||
| 151 | ||||
| 152 | static constexpr uint32_t ClosedOverFlag = 1 << FlagShift; | |||
| 153 | static constexpr uint32_t TopLevelFunctionFlag = 2 << FlagShift; | |||
| 154 | ||||
| 155 | public: | |||
| 156 | AbstractBindingName() : bits_(TaggedParserAtomIndex::NullTag) { | |||
| 157 | // TaggedParserAtomIndex's tags shouldn't overlap with flags. | |||
| 158 | static_assert((TaggedParserAtomIndex::NullTag & FlagMask) == 0); | |||
| 159 | static_assert((TaggedParserAtomIndex::ParserAtomIndexTag & FlagMask) == 0); | |||
| 160 | static_assert((TaggedParserAtomIndex::WellKnownTag & FlagMask) == 0); | |||
| 161 | } | |||
| 162 | ||||
| 163 | AbstractBindingName(TaggedParserAtomIndex name, bool closedOver, | |||
| 164 | bool isTopLevelFunction = false) | |||
| 165 | : bits_(name.rawData() | (closedOver ? ClosedOverFlag : 0x0) | | |||
| 166 | (isTopLevelFunction ? TopLevelFunctionFlag : 0x0)) {} | |||
| 167 | ||||
| 168 | public: | |||
| 169 | NamePointerT name() const { | |||
| 170 | return TaggedParserAtomIndex::fromRaw(bits_ & ~FlagMask); | |||
| 171 | } | |||
| 172 | ||||
| 173 | bool closedOver() const { return bits_ & ClosedOverFlag; } | |||
| 174 | ||||
| 175 | AbstractBindingName<JSAtom> copyWithNewAtom(JSAtom* newName) const { | |||
| 176 | return AbstractBindingName<JSAtom>(newName, closedOver(), | |||
| 177 | isTopLevelFunction()); | |||
| 178 | } | |||
| 179 | ||||
| 180 | void updateNameAfterStencilMerge(TaggedParserAtomIndex name) { | |||
| 181 | bits_ = (bits_ & FlagMask) | name.rawData(); | |||
| 182 | } | |||
| 183 | ||||
| 184 | private: | |||
| 185 | friend class BaseAbstractBindingIter<TaggedParserAtomIndex>; | |||
| 186 | friend class frontend::ScopeStencil; | |||
| 187 | ||||
| 188 | // This method should be called only for binding names in `vars` range in | |||
| 189 | // BindingIter. | |||
| 190 | bool isTopLevelFunction() const { return bits_ & TopLevelFunctionFlag; } | |||
| 191 | }; | |||
| 192 | ||||
| 193 | using BindingName = AbstractBindingName<JSAtom>; | |||
| 194 | ||||
| 195 | static inline void TraceBindingNames(JSTracer* trc, BindingName* names, | |||
| 196 | uint32_t length) { | |||
| 197 | for (uint32_t i = 0; i < length; i++) { | |||
| 198 | JSAtom* name = names[i].name(); | |||
| 199 | MOZ_ASSERT(name)do { static_assert( mozilla::detail::AssertionConditionType< decltype(name)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(name))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("name", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 199); AnnotateMozCrashReason("MOZ_ASSERT" "(" "name" ")"); do { *((volatile int*)__null) = 199; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); | |||
| 200 | TraceManuallyBarrieredEdge(trc, &name, "scope name"); | |||
| 201 | } | |||
| 202 | }; | |||
| 203 | static inline void TraceNullableBindingNames(JSTracer* trc, BindingName* names, | |||
| 204 | uint32_t length) { | |||
| 205 | for (uint32_t i = 0; i < length; i++) { | |||
| 206 | if (JSAtom* name = names[i].name()) { | |||
| 207 | TraceManuallyBarrieredEdge(trc, &name, "scope name"); | |||
| 208 | } | |||
| 209 | } | |||
| 210 | }; | |||
| 211 | ||||
| 212 | const size_t ScopeDataAlignBytes = size_t(1) << gc::CellFlagBitsReservedForGC; | |||
| 213 | ||||
| 214 | /** | |||
| 215 | * Base class for scope {Runtime,Parser}Data classes to inherit from. | |||
| 216 | * | |||
| 217 | * `js::Scope` stores a pointer to RuntimeData classes in their first word, so | |||
| 218 | * they must be suitably aligned to allow storing GC flags in the low bits. | |||
| 219 | */ | |||
| 220 | template <typename NameT> | |||
| 221 | class AbstractBaseScopeData { | |||
| 222 | public: | |||
| 223 | using NameType = NameT; | |||
| 224 | ||||
| 225 | // The length of names after specialized ScopeData subclasses. | |||
| 226 | uint32_t length = 0; | |||
| 227 | }; | |||
| 228 | ||||
| 229 | template <typename ScopeDataT> | |||
| 230 | static inline void AssertDerivedScopeData() { | |||
| 231 | static_assert( | |||
| 232 | !std::is_same_v<ScopeDataT, | |||
| 233 | AbstractBaseScopeData<typename ScopeDataT::NameType>>, | |||
| 234 | "ScopeDataT shouldn't be AbstractBaseScopeData"); | |||
| 235 | static_assert( | |||
| 236 | std::is_base_of_v<AbstractBaseScopeData<typename ScopeDataT::NameType>, | |||
| 237 | ScopeDataT>, | |||
| 238 | "ScopeDataT should be subclass of AbstractBaseScopeData"); | |||
| 239 | } | |||
| 240 | ||||
| 241 | template <typename ScopeDataT> | |||
| 242 | static inline size_t GetOffsetOfScopeDataTrailingNames() { | |||
| 243 | AssertDerivedScopeData<ScopeDataT>(); | |||
| 244 | return sizeof(ScopeDataT); | |||
| 245 | } | |||
| 246 | ||||
| 247 | template <typename ScopeDataT> | |||
| 248 | static inline AbstractBindingName<typename ScopeDataT::NameType>* | |||
| 249 | GetScopeDataTrailingNamesPointer(ScopeDataT* data) { | |||
| 250 | AssertDerivedScopeData<ScopeDataT>(); | |||
| 251 | return reinterpret_cast<AbstractBindingName<typename ScopeDataT::NameType>*>( | |||
| 252 | data + 1); | |||
| 253 | } | |||
| 254 | ||||
| 255 | template <typename ScopeDataT> | |||
| 256 | static inline const AbstractBindingName<typename ScopeDataT::NameType>* | |||
| 257 | GetScopeDataTrailingNamesPointer(const ScopeDataT* data) { | |||
| 258 | AssertDerivedScopeData<ScopeDataT>(); | |||
| 259 | return reinterpret_cast< | |||
| 260 | const AbstractBindingName<typename ScopeDataT::NameType>*>(data + 1); | |||
| 261 | } | |||
| 262 | ||||
| 263 | template <typename ScopeDataT> | |||
| 264 | static inline mozilla::Span<AbstractBindingName<typename ScopeDataT::NameType>> | |||
| 265 | GetScopeDataTrailingNames(ScopeDataT* data) { | |||
| 266 | return mozilla::Span(GetScopeDataTrailingNamesPointer(data), data->length); | |||
| ||||
| 267 | } | |||
| 268 | ||||
| 269 | template <typename ScopeDataT> | |||
| 270 | static inline mozilla::Span< | |||
| 271 | const AbstractBindingName<typename ScopeDataT::NameType>> | |||
| 272 | GetScopeDataTrailingNames(const ScopeDataT* data) { | |||
| 273 | return mozilla::Span(GetScopeDataTrailingNamesPointer(data), data->length); | |||
| 274 | } | |||
| 275 | ||||
| 276 | using BaseScopeData = AbstractBaseScopeData<JSAtom>; | |||
| 277 | ||||
| 278 | inline void PoisonNames(AbstractBindingName<JSAtom>* data, uint32_t length) { | |||
| 279 | AlwaysPoison(data, JS_SCOPE_DATA_TRAILING_NAMES_PATTERN, | |||
| 280 | sizeof(AbstractBindingName<JSAtom>) * length, | |||
| 281 | MemCheckKind::MakeUndefined); | |||
| 282 | } | |||
| 283 | ||||
| 284 | // frontend::TaggedParserAtomIndex doesn't require poison value. | |||
| 285 | // Fill with null value instead. | |||
| 286 | inline void PoisonNames( | |||
| 287 | AbstractBindingName<frontend::TaggedParserAtomIndex>* data, | |||
| 288 | uint32_t length) { | |||
| 289 | std::fill_n(data, length, | |||
| 290 | AbstractBindingName<frontend::TaggedParserAtomIndex>()); | |||
| 291 | } | |||
| 292 | ||||
| 293 | template <typename ScopeDataT> | |||
| 294 | static inline void PoisonNames(ScopeDataT* data, uint32_t length) { | |||
| 295 | if (length) { | |||
| 296 | PoisonNames(GetScopeDataTrailingNamesPointer(data), length); | |||
| 297 | } | |||
| 298 | } | |||
| 299 | ||||
| 300 | // | |||
| 301 | // Allow using is<T> and as<T> on Rooted<Scope*> and Handle<Scope*>. | |||
| 302 | // | |||
| 303 | template <typename Wrapper> | |||
| 304 | class WrappedPtrOperations<Scope*, Wrapper> { | |||
| 305 | public: | |||
| 306 | template <class U> | |||
| 307 | JS::Handle<U*> as() const { | |||
| 308 | const Wrapper& self = *static_cast<const Wrapper*>(this); | |||
| 309 | MOZ_ASSERT_IF(self, self->template is<U>())do { if (self) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(self->template is<U>())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(self->template is<U> ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("self->template is<U>()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 309); AnnotateMozCrashReason("MOZ_ASSERT" "(" "self->template is<U>()" ")"); do { *((volatile int*)__null) = 309; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 310 | return Handle<U*>::fromMarkedLocation( | |||
| 311 | reinterpret_cast<U* const*>(self.address())); | |||
| 312 | } | |||
| 313 | }; | |||
| 314 | ||||
| 315 | // | |||
| 316 | // The base class of all Scopes. | |||
| 317 | // | |||
| 318 | class Scope : public gc::TenuredCellWithNonGCPointer<BaseScopeData> { | |||
| 319 | friend class GCMarker; | |||
| 320 | friend class frontend::ScopeStencil; | |||
| 321 | friend class js::AbstractBindingIter<JSAtom>; | |||
| 322 | friend class js::frontend::RuntimeScopeBindingCache; | |||
| 323 | friend class gc::CellAllocator; | |||
| 324 | ||||
| 325 | protected: | |||
| 326 | // The raw data pointer, stored in the cell header. | |||
| 327 | BaseScopeData* rawData() { return headerPtr(); } | |||
| 328 | const BaseScopeData* rawData() const { return headerPtr(); } | |||
| 329 | ||||
| 330 | // The kind determines data_. | |||
| 331 | const ScopeKind kind_; | |||
| 332 | ||||
| 333 | // If there are any aliased bindings, the shape for the | |||
| 334 | // EnvironmentObject. Otherwise nullptr. | |||
| 335 | const HeapPtr<SharedShape*> environmentShape_; | |||
| 336 | ||||
| 337 | // The enclosing scope or nullptr. | |||
| 338 | HeapPtr<Scope*> enclosingScope_; | |||
| 339 | ||||
| 340 | Scope(ScopeKind kind, Scope* enclosing, SharedShape* environmentShape) | |||
| 341 | : TenuredCellWithNonGCPointer(nullptr), | |||
| 342 | kind_(kind), | |||
| 343 | environmentShape_(environmentShape), | |||
| 344 | enclosingScope_(enclosing) {} | |||
| 345 | ||||
| 346 | static Scope* create(JSContext* cx, ScopeKind kind, Handle<Scope*> enclosing, | |||
| 347 | Handle<SharedShape*> envShape); | |||
| 348 | ||||
| 349 | template <typename ConcreteScope> | |||
| 350 | void initData( | |||
| 351 | MutableHandle<UniquePtr<typename ConcreteScope::RuntimeData>> data); | |||
| 352 | ||||
| 353 | template <typename F> | |||
| 354 | void applyScopeDataTyped(F&& f); | |||
| 355 | ||||
| 356 | static void updateEnvShapeIfRequired(mozilla::Maybe<uint32_t>* envShape, | |||
| 357 | bool needsEnvironment); | |||
| 358 | ||||
| 359 | public: | |||
| 360 | template <typename ConcreteScope> | |||
| 361 | static ConcreteScope* create( | |||
| 362 | JSContext* cx, ScopeKind kind, Handle<Scope*> enclosing, | |||
| 363 | Handle<SharedShape*> envShape, | |||
| 364 | MutableHandle<UniquePtr<typename ConcreteScope::RuntimeData>> data); | |||
| 365 | ||||
| 366 | static const JS::TraceKind TraceKind = JS::TraceKind::Scope; | |||
| 367 | ||||
| 368 | template <typename T> | |||
| 369 | bool is() const { | |||
| 370 | return kind_ == T::classScopeKind_; | |||
| 371 | } | |||
| 372 | ||||
| 373 | template <typename T> | |||
| 374 | T& as() { | |||
| 375 | MOZ_ASSERT(this->is<T>())do { static_assert( mozilla::detail::AssertionConditionType< decltype(this->is<T>())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(this->is<T>()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("this->is<T>()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 375); AnnotateMozCrashReason("MOZ_ASSERT" "(" "this->is<T>()" ")"); do { *((volatile int*)__null) = 375; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 376 | return *static_cast<T*>(this); | |||
| 377 | } | |||
| 378 | ||||
| 379 | template <typename T> | |||
| 380 | const T& as() const { | |||
| 381 | MOZ_ASSERT(this->is<T>())do { static_assert( mozilla::detail::AssertionConditionType< decltype(this->is<T>())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(this->is<T>()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("this->is<T>()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 381); AnnotateMozCrashReason("MOZ_ASSERT" "(" "this->is<T>()" ")"); do { *((volatile int*)__null) = 381; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 382 | return *static_cast<const T*>(this); | |||
| 383 | } | |||
| 384 | ||||
| 385 | ScopeKind kind() const { return kind_; } | |||
| 386 | ||||
| 387 | bool isNamedLambda() const { | |||
| 388 | return kind() == ScopeKind::NamedLambda || | |||
| 389 | kind() == ScopeKind::StrictNamedLambda; | |||
| 390 | } | |||
| 391 | ||||
| 392 | SharedShape* environmentShape() const { return environmentShape_; } | |||
| 393 | ||||
| 394 | Scope* enclosing() const { return enclosingScope_; } | |||
| 395 | ||||
| 396 | static bool hasEnvironment(ScopeKind kind, bool hasEnvironmentShape = false) { | |||
| 397 | switch (kind) { | |||
| 398 | case ScopeKind::With: | |||
| 399 | case ScopeKind::Global: | |||
| 400 | case ScopeKind::NonSyntactic: | |||
| 401 | return true; | |||
| 402 | default: | |||
| 403 | // If there's a shape, an environment must be created for this scope. | |||
| 404 | return hasEnvironmentShape; | |||
| 405 | } | |||
| 406 | } | |||
| 407 | ||||
| 408 | bool hasEnvironment() const { | |||
| 409 | return hasEnvironment(kind_, !!environmentShape()); | |||
| 410 | } | |||
| 411 | ||||
| 412 | uint32_t firstFrameSlot() const; | |||
| 413 | ||||
| 414 | uint32_t chainLength() const; | |||
| 415 | uint32_t environmentChainLength() const; | |||
| 416 | ||||
| 417 | template <typename T> | |||
| 418 | bool hasOnChain() const { | |||
| 419 | for (const Scope* it = this; it; it = it->enclosing()) { | |||
| 420 | if (it->is<T>()) { | |||
| 421 | return true; | |||
| 422 | } | |||
| 423 | } | |||
| 424 | return false; | |||
| 425 | } | |||
| 426 | ||||
| 427 | bool hasOnChain(ScopeKind kind) const { | |||
| 428 | for (const Scope* it = this; it; it = it->enclosing()) { | |||
| 429 | if (it->kind() == kind) { | |||
| 430 | return true; | |||
| 431 | } | |||
| 432 | } | |||
| 433 | return false; | |||
| 434 | } | |||
| 435 | ||||
| 436 | void traceChildren(JSTracer* trc); | |||
| 437 | void finalize(JS::GCContext* gcx); | |||
| 438 | ||||
| 439 | size_t sizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf) const; | |||
| 440 | ||||
| 441 | void dump(); | |||
| 442 | #if defined(DEBUG1) || defined(JS_JITSPEW1) | |||
| 443 | static bool dumpForDisassemble(JSContext* cx, JS::Handle<Scope*> scope, | |||
| 444 | GenericPrinter& out, const char* indent); | |||
| 445 | #endif /* defined(DEBUG) || defined(JS_JITSPEW) */ | |||
| 446 | }; | |||
| 447 | ||||
| 448 | template <class DataT> | |||
| 449 | inline size_t SizeOfScopeData(uint32_t length) { | |||
| 450 | using BindingT = AbstractBindingName<typename DataT::NameType>; | |||
| 451 | return GetOffsetOfScopeDataTrailingNames<DataT>() + length * sizeof(BindingT); | |||
| 452 | } | |||
| 453 | ||||
| 454 | // | |||
| 455 | // A useful typedef for selecting between a gc-aware wrappers | |||
| 456 | // around pointers to BaseScopeData-derived types, and around raw | |||
| 457 | // pointer wrappers around BaseParserScopeData-derived types. | |||
| 458 | // | |||
| 459 | template <typename ScopeT, typename AtomT> | |||
| 460 | using AbstractScopeData = typename ScopeT::template AbstractData<AtomT>; | |||
| 461 | ||||
| 462 | // Binding names are stored from `this+1`. | |||
| 463 | // Make sure the class aligns the binding name size. | |||
| 464 | template <typename SlotInfo> | |||
| 465 | struct alignas(alignof(AbstractBindingName<frontend::TaggedParserAtomIndex>)) | |||
| 466 | ParserScopeData | |||
| 467 | : public AbstractBaseScopeData<frontend::TaggedParserAtomIndex> { | |||
| 468 | SlotInfo slotInfo; | |||
| 469 | ||||
| 470 | explicit ParserScopeData(size_t length) { PoisonNames(this, length); } | |||
| 471 | ParserScopeData() = delete; | |||
| 472 | }; | |||
| 473 | ||||
| 474 | // RuntimeScopeData has 2 requirements: | |||
| 475 | // * It aligns with `BindingName`, that is stored after `this+1` | |||
| 476 | // * It aligns with ScopeDataAlignBytes, in order to put it in the first | |||
| 477 | // word of `js::Scope` | |||
| 478 | static_assert(alignof(BindingName) <= ScopeDataAlignBytes); | |||
| 479 | template <typename SlotInfo> | |||
| 480 | struct alignas(ScopeDataAlignBytes) RuntimeScopeData | |||
| 481 | : public AbstractBaseScopeData<JSAtom> { | |||
| 482 | SlotInfo slotInfo; | |||
| 483 | ||||
| 484 | explicit RuntimeScopeData(size_t length) { PoisonNames(this, length); } | |||
| 485 | RuntimeScopeData() = delete; | |||
| 486 | ||||
| 487 | void trace(JSTracer* trc); | |||
| 488 | }; | |||
| 489 | ||||
| 490 | // | |||
| 491 | // A lexical scope that holds let and const bindings. There are 4 kinds of | |||
| 492 | // LexicalScopes. | |||
| 493 | // | |||
| 494 | // Lexical | |||
| 495 | // A plain lexical scope. | |||
| 496 | // | |||
| 497 | // SimpleCatch | |||
| 498 | // Holds the single catch parameter of a catch block. | |||
| 499 | // | |||
| 500 | // Catch | |||
| 501 | // Holds the catch parameters (and only the catch parameters) of a catch | |||
| 502 | // block. | |||
| 503 | // | |||
| 504 | // NamedLambda | |||
| 505 | // StrictNamedLambda | |||
| 506 | // Holds the single name of the callee for a named lambda expression. | |||
| 507 | // | |||
| 508 | // All kinds of LexicalScopes correspond to LexicalEnvironmentObjects on the | |||
| 509 | // environment chain. | |||
| 510 | // | |||
| 511 | class LexicalScope : public Scope { | |||
| 512 | friend class Scope; | |||
| 513 | friend class AbstractBindingIter<JSAtom>; | |||
| 514 | friend class GCMarker; | |||
| 515 | friend class frontend::ScopeStencil; | |||
| 516 | ||||
| 517 | public: | |||
| 518 | struct SlotInfo { | |||
| 519 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 520 | // scope. | |||
| 521 | uint32_t nextFrameSlot = 0; | |||
| 522 | ||||
| 523 | // Bindings are sorted by kind in both frames and environments. | |||
| 524 | // | |||
| 525 | // lets - [0, constStart) | |||
| 526 | // consts - [constStart, length) | |||
| 527 | uint32_t constStart = 0; | |||
| 528 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 529 | // consts - [constStart, usingStart) | |||
| 530 | // usings - [usingStart, length) | |||
| 531 | uint32_t usingStart = 0; | |||
| 532 | #endif | |||
| 533 | }; | |||
| 534 | ||||
| 535 | using RuntimeData = RuntimeScopeData<SlotInfo>; | |||
| 536 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 537 | ||||
| 538 | template <typename NameT> | |||
| 539 | using AbstractData = | |||
| 540 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 541 | RuntimeData, ParserData>; | |||
| 542 | ||||
| 543 | private: | |||
| 544 | static void prepareForScopeCreation(ScopeKind kind, uint32_t firstFrameSlot, | |||
| 545 | LexicalScope::ParserData* data, | |||
| 546 | mozilla::Maybe<uint32_t>* envShape); | |||
| 547 | ||||
| 548 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 549 | const RuntimeData& data() const { | |||
| 550 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 551 | } | |||
| 552 | ||||
| 553 | public: | |||
| 554 | static uint32_t nextFrameSlot(Scope* scope); | |||
| 555 | ||||
| 556 | uint32_t nextFrameSlot() const { return data().slotInfo.nextFrameSlot; } | |||
| 557 | ||||
| 558 | // Returns an empty shape for extensible global and non-syntactic lexical | |||
| 559 | // scopes. | |||
| 560 | static SharedShape* getEmptyExtensibleEnvironmentShape(JSContext* cx); | |||
| 561 | }; | |||
| 562 | ||||
| 563 | template <> | |||
| 564 | inline bool Scope::is<LexicalScope>() const { | |||
| 565 | return kind_ == ScopeKind::Lexical || kind_ == ScopeKind::SimpleCatch || | |||
| 566 | kind_ == ScopeKind::Catch || kind_ == ScopeKind::NamedLambda || | |||
| 567 | kind_ == ScopeKind::StrictNamedLambda || | |||
| 568 | kind_ == ScopeKind::FunctionLexical; | |||
| 569 | } | |||
| 570 | ||||
| 571 | // The body scope of a JS class, containing only synthetic bindings for private | |||
| 572 | // class members. (The binding for the class name, `C` in the example below, is | |||
| 573 | // in another scope, a `LexicalScope`, that encloses the `ClassBodyScope`.) | |||
| 574 | // Example: | |||
| 575 | // | |||
| 576 | // class C { | |||
| 577 | // #f = 0; | |||
| 578 | // #m() { | |||
| 579 | // return this.#f++; | |||
| 580 | // } | |||
| 581 | // } | |||
| 582 | // | |||
| 583 | // This class has a ClassBodyScope with four synthetic bindings: | |||
| 584 | // - `#f` (private name) | |||
| 585 | // - `#m` (private name) | |||
| 586 | // - `#m.method` (function object) | |||
| 587 | // - `.privateBrand` (the class's private brand) | |||
| 588 | class ClassBodyScope : public Scope { | |||
| 589 | friend class Scope; | |||
| 590 | friend class AbstractBindingIter<JSAtom>; | |||
| 591 | friend class GCMarker; | |||
| 592 | friend class frontend::ScopeStencil; | |||
| 593 | friend class AbstractScopePtr; | |||
| 594 | ||||
| 595 | static const ScopeKind classScopeKind_ = ScopeKind::ClassBody; | |||
| 596 | ||||
| 597 | public: | |||
| 598 | struct SlotInfo { | |||
| 599 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 600 | // scope. | |||
| 601 | uint32_t nextFrameSlot = 0; | |||
| 602 | ||||
| 603 | // Bindings are sorted by kind in both frames and environments. | |||
| 604 | // | |||
| 605 | // synthetic - [0, privateMethodStart) | |||
| 606 | // privateMethod - [privateMethodStart, length) | |||
| 607 | uint32_t privateMethodStart = 0; | |||
| 608 | }; | |||
| 609 | ||||
| 610 | using RuntimeData = RuntimeScopeData<SlotInfo>; | |||
| 611 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 612 | ||||
| 613 | template <typename NameT> | |||
| 614 | using AbstractData = | |||
| 615 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 616 | RuntimeData, ParserData>; | |||
| 617 | ||||
| 618 | private: | |||
| 619 | static void prepareForScopeCreation(ScopeKind kind, uint32_t firstFrameSlot, | |||
| 620 | ClassBodyScope::ParserData* data, | |||
| 621 | mozilla::Maybe<uint32_t>* envShape); | |||
| 622 | ||||
| 623 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 624 | const RuntimeData& data() const { | |||
| 625 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 626 | } | |||
| 627 | ||||
| 628 | public: | |||
| 629 | static uint32_t nextFrameSlot(Scope* scope); | |||
| 630 | ||||
| 631 | uint32_t nextFrameSlot() const { return data().slotInfo.nextFrameSlot; } | |||
| 632 | ||||
| 633 | // Returns an empty shape for extensible global and non-syntactic lexical | |||
| 634 | // scopes. | |||
| 635 | static SharedShape* getEmptyExtensibleEnvironmentShape(JSContext* cx); | |||
| 636 | }; | |||
| 637 | ||||
| 638 | // | |||
| 639 | // Scope corresponding to a function. Holds formal parameter names, special | |||
| 640 | // internal names (see FunctionScope::isSpecialName), and, if the function | |||
| 641 | // parameters contain no expressions that might possibly be evaluated, the | |||
| 642 | // function's var bindings. For example, in these functions, the FunctionScope | |||
| 643 | // will store a/b/c bindings but not d/e/f bindings: | |||
| 644 | // | |||
| 645 | // function f1(a, b) { | |||
| 646 | // var c; | |||
| 647 | // let e; | |||
| 648 | // const f = 3; | |||
| 649 | // } | |||
| 650 | // function f2([a], b = 4, ...c) { | |||
| 651 | // var d, e, f; // stored in VarScope | |||
| 652 | // } | |||
| 653 | // | |||
| 654 | // Corresponds to CallObject on environment chain. | |||
| 655 | // | |||
| 656 | class FunctionScope : public Scope { | |||
| 657 | friend class GCMarker; | |||
| 658 | friend class AbstractBindingIter<JSAtom>; | |||
| 659 | friend class AbstractPositionalFormalParameterIter<JSAtom>; | |||
| 660 | friend class Scope; | |||
| 661 | friend class AbstractScopePtr; | |||
| 662 | static const ScopeKind classScopeKind_ = ScopeKind::Function; | |||
| 663 | ||||
| 664 | public: | |||
| 665 | struct SlotInfo { | |||
| 666 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 667 | // scope. | |||
| 668 | uint32_t nextFrameSlot = 0; | |||
| 669 | ||||
| 670 | // Flag bits. | |||
| 671 | // This uses uint32_t in order to make this struct packed. | |||
| 672 | uint32_t flags = 0; | |||
| 673 | ||||
| 674 | // If parameter expressions are present, parameters act like lexical | |||
| 675 | // bindings. | |||
| 676 | static constexpr uint32_t HasParameterExprsFlag = 1; | |||
| 677 | ||||
| 678 | // Bindings are sorted by kind in both frames and environments. | |||
| 679 | // | |||
| 680 | // Positional formal parameter names are those that are not | |||
| 681 | // destructured. They may be referred to by argument slots if | |||
| 682 | // !script()->hasParameterExprs(). | |||
| 683 | // | |||
| 684 | // An argument slot that needs to be skipped due to being destructured | |||
| 685 | // or having defaults will have a nullptr name in the name array to | |||
| 686 | // advance the argument slot. | |||
| 687 | // | |||
| 688 | // Rest parameter binding is also included in positional formals. | |||
| 689 | // This also becomes nullptr if destructuring. | |||
| 690 | // | |||
| 691 | // The number of positional formals is equal to function.length if | |||
| 692 | // there's no rest, function.length+1 otherwise. | |||
| 693 | // | |||
| 694 | // Destructuring parameters and destructuring rest are included in | |||
| 695 | // "other formals" below. | |||
| 696 | // | |||
| 697 | // "vars" contains the following: | |||
| 698 | // * function's top level vars if !script()->hasParameterExprs() | |||
| 699 | // * special internal names (arguments, .this, .generator) if | |||
| 700 | // they're used. | |||
| 701 | // | |||
| 702 | // positional formals - [0, nonPositionalFormalStart) | |||
| 703 | // other formals - [nonPositionalParamStart, varStart) | |||
| 704 | // vars - [varStart, length) | |||
| 705 | uint16_t nonPositionalFormalStart = 0; | |||
| 706 | uint16_t varStart = 0; | |||
| 707 | ||||
| 708 | bool hasParameterExprs() const { return flags & HasParameterExprsFlag; } | |||
| 709 | void setHasParameterExprs() { flags |= HasParameterExprsFlag; } | |||
| 710 | }; | |||
| 711 | ||||
| 712 | struct alignas(ScopeDataAlignBytes) RuntimeData | |||
| 713 | : public AbstractBaseScopeData<JSAtom> { | |||
| 714 | SlotInfo slotInfo; | |||
| 715 | // The canonical function of the scope, as during a scope walk we | |||
| 716 | // often query properties of the JSFunction (e.g., is the function an | |||
| 717 | // arrow). | |||
| 718 | HeapPtr<JSFunction*> canonicalFunction = {}; | |||
| 719 | ||||
| 720 | explicit RuntimeData(size_t length) { PoisonNames(this, length); } | |||
| 721 | RuntimeData() = delete; | |||
| 722 | ||||
| 723 | void trace(JSTracer* trc); | |||
| 724 | }; | |||
| 725 | ||||
| 726 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 727 | ||||
| 728 | template <typename NameT> | |||
| 729 | using AbstractData = | |||
| 730 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 731 | RuntimeData, ParserData>; | |||
| 732 | ||||
| 733 | static void prepareForScopeCreation(FunctionScope::ParserData* data, | |||
| 734 | bool hasParameterExprs, | |||
| 735 | bool needsEnvironment, | |||
| 736 | mozilla::Maybe<uint32_t>* envShape); | |||
| 737 | ||||
| 738 | private: | |||
| 739 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 740 | ||||
| 741 | const RuntimeData& data() const { | |||
| 742 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 743 | } | |||
| 744 | ||||
| 745 | public: | |||
| 746 | uint32_t nextFrameSlot() const { return data().slotInfo.nextFrameSlot; } | |||
| 747 | ||||
| 748 | JSFunction* canonicalFunction() const { return data().canonicalFunction; } | |||
| 749 | void initCanonicalFunction(JSFunction* fun) { | |||
| 750 | data().canonicalFunction.init(fun); | |||
| 751 | } | |||
| 752 | ||||
| 753 | JSScript* script() const; | |||
| 754 | ||||
| 755 | bool hasParameterExprs() const { return data().slotInfo.hasParameterExprs(); } | |||
| 756 | ||||
| 757 | uint32_t numPositionalFormalParameters() const { | |||
| 758 | return data().slotInfo.nonPositionalFormalStart; | |||
| 759 | } | |||
| 760 | ||||
| 761 | static bool isSpecialName(frontend::TaggedParserAtomIndex name); | |||
| 762 | }; | |||
| 763 | ||||
| 764 | // | |||
| 765 | // Scope holding only vars. There is a single kind of VarScopes. | |||
| 766 | // | |||
| 767 | // FunctionBodyVar | |||
| 768 | // Corresponds to the extra var scope present in functions with parameter | |||
| 769 | // expressions. See examples in comment above FunctionScope. | |||
| 770 | // | |||
| 771 | // Corresponds to VarEnvironmentObject on environment chain. | |||
| 772 | // | |||
| 773 | class VarScope : public Scope { | |||
| 774 | friend class GCMarker; | |||
| 775 | friend class AbstractBindingIter<JSAtom>; | |||
| 776 | friend class Scope; | |||
| 777 | friend class frontend::ScopeStencil; | |||
| 778 | ||||
| 779 | public: | |||
| 780 | struct SlotInfo { | |||
| 781 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 782 | // scope. | |||
| 783 | uint32_t nextFrameSlot = 0; | |||
| 784 | ||||
| 785 | // All bindings are vars. | |||
| 786 | // | |||
| 787 | // vars - [0, length) | |||
| 788 | }; | |||
| 789 | ||||
| 790 | using RuntimeData = RuntimeScopeData<SlotInfo>; | |||
| 791 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 792 | ||||
| 793 | template <typename NameT> | |||
| 794 | using AbstractData = | |||
| 795 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 796 | RuntimeData, ParserData>; | |||
| 797 | ||||
| 798 | private: | |||
| 799 | static void prepareForScopeCreation(ScopeKind kind, | |||
| 800 | VarScope::ParserData* data, | |||
| 801 | uint32_t firstFrameSlot, | |||
| 802 | bool needsEnvironment, | |||
| 803 | mozilla::Maybe<uint32_t>* envShape); | |||
| 804 | ||||
| 805 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 806 | ||||
| 807 | const RuntimeData& data() const { | |||
| 808 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 809 | } | |||
| 810 | ||||
| 811 | public: | |||
| 812 | uint32_t nextFrameSlot() const { return data().slotInfo.nextFrameSlot; } | |||
| 813 | }; | |||
| 814 | ||||
| 815 | template <> | |||
| 816 | inline bool Scope::is<VarScope>() const { | |||
| 817 | return kind_ == ScopeKind::FunctionBodyVar; | |||
| 818 | } | |||
| 819 | ||||
| 820 | // | |||
| 821 | // Scope corresponding to both the global object scope and the global lexical | |||
| 822 | // scope. | |||
| 823 | // | |||
| 824 | // Both are extensible and are singletons across <script> tags, so these | |||
| 825 | // scopes are a fragment of the names in global scope. In other words, two | |||
| 826 | // global scripts may have two different GlobalScopes despite having the same | |||
| 827 | // GlobalObject. | |||
| 828 | // | |||
| 829 | // There are 2 kinds of GlobalScopes. | |||
| 830 | // | |||
| 831 | // Global | |||
| 832 | // Corresponds to a GlobalObject and its GlobalLexicalEnvironmentObject on | |||
| 833 | // the environment chain. | |||
| 834 | // | |||
| 835 | // NonSyntactic | |||
| 836 | // Corresponds to a non-GlobalObject created by the embedding on the | |||
| 837 | // environment chain. This distinction is important for optimizations. | |||
| 838 | // | |||
| 839 | class GlobalScope : public Scope { | |||
| 840 | friend class Scope; | |||
| 841 | friend class AbstractBindingIter<JSAtom>; | |||
| 842 | friend class GCMarker; | |||
| 843 | ||||
| 844 | public: | |||
| 845 | struct SlotInfo { | |||
| 846 | // Bindings are sorted by kind. | |||
| 847 | // `vars` includes top-level functions which is distinguished by a bit | |||
| 848 | // on the BindingName. | |||
| 849 | // | |||
| 850 | // vars - [0, letStart) | |||
| 851 | // lets - [letStart, constStart) | |||
| 852 | // consts - [constStart, length) | |||
| 853 | uint32_t letStart = 0; | |||
| 854 | uint32_t constStart = 0; | |||
| 855 | }; | |||
| 856 | ||||
| 857 | using RuntimeData = RuntimeScopeData<SlotInfo>; | |||
| 858 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 859 | ||||
| 860 | template <typename NameT> | |||
| 861 | using AbstractData = | |||
| 862 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 863 | RuntimeData, ParserData>; | |||
| 864 | ||||
| 865 | static GlobalScope* createEmpty(JSContext* cx, ScopeKind kind); | |||
| 866 | ||||
| 867 | private: | |||
| 868 | static GlobalScope* createWithData( | |||
| 869 | JSContext* cx, ScopeKind kind, | |||
| 870 | MutableHandle<UniquePtr<RuntimeData>> data); | |||
| 871 | ||||
| 872 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 873 | ||||
| 874 | const RuntimeData& data() const { | |||
| 875 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 876 | } | |||
| 877 | ||||
| 878 | public: | |||
| 879 | bool isSyntactic() const { return kind() != ScopeKind::NonSyntactic; } | |||
| 880 | ||||
| 881 | bool hasBindings() const { return data().length > 0; } | |||
| 882 | }; | |||
| 883 | ||||
| 884 | template <> | |||
| 885 | inline bool Scope::is<GlobalScope>() const { | |||
| 886 | return kind_ == ScopeKind::Global || kind_ == ScopeKind::NonSyntactic; | |||
| 887 | } | |||
| 888 | ||||
| 889 | // | |||
| 890 | // Scope of a 'with' statement. Has no bindings. | |||
| 891 | // | |||
| 892 | // Corresponds to a WithEnvironmentObject on the environment chain. | |||
| 893 | class WithScope : public Scope { | |||
| 894 | friend class Scope; | |||
| 895 | friend class AbstractScopePtr; | |||
| 896 | static const ScopeKind classScopeKind_ = ScopeKind::With; | |||
| 897 | ||||
| 898 | public: | |||
| 899 | static WithScope* create(JSContext* cx, Handle<Scope*> enclosing); | |||
| 900 | }; | |||
| 901 | ||||
| 902 | // | |||
| 903 | // Scope of an eval. Holds var bindings. There are 2 kinds of EvalScopes. | |||
| 904 | // | |||
| 905 | // StrictEval | |||
| 906 | // A strict eval. Corresponds to a VarEnvironmentObject, where its var | |||
| 907 | // bindings lives. | |||
| 908 | // | |||
| 909 | // Eval | |||
| 910 | // A sloppy eval. This is an empty scope, used only in the frontend, to | |||
| 911 | // detect redeclaration errors. It has no Environment. Any `var`s declared | |||
| 912 | // in the eval code are bound on the nearest enclosing var environment. | |||
| 913 | // | |||
| 914 | class EvalScope : public Scope { | |||
| 915 | friend class Scope; | |||
| 916 | friend class AbstractBindingIter<JSAtom>; | |||
| 917 | friend class GCMarker; | |||
| 918 | friend class frontend::ScopeStencil; | |||
| 919 | ||||
| 920 | public: | |||
| 921 | struct SlotInfo { | |||
| 922 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 923 | // scope. | |||
| 924 | uint32_t nextFrameSlot = 0; | |||
| 925 | ||||
| 926 | // All bindings in an eval script are 'var' bindings. The implicit | |||
| 927 | // lexical scope around the eval is present regardless of strictness | |||
| 928 | // and is its own LexicalScope. | |||
| 929 | // `vars` includes top-level functions which is distinguished by a bit | |||
| 930 | // on the BindingName. | |||
| 931 | // | |||
| 932 | // vars - [0, length) | |||
| 933 | }; | |||
| 934 | ||||
| 935 | using RuntimeData = RuntimeScopeData<SlotInfo>; | |||
| 936 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 937 | ||||
| 938 | template <typename NameT> | |||
| 939 | using AbstractData = | |||
| 940 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 941 | RuntimeData, ParserData>; | |||
| 942 | ||||
| 943 | private: | |||
| 944 | static void prepareForScopeCreation(ScopeKind scopeKind, | |||
| 945 | EvalScope::ParserData* data, | |||
| 946 | mozilla::Maybe<uint32_t>* envShape); | |||
| 947 | ||||
| 948 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 949 | ||||
| 950 | const RuntimeData& data() const { | |||
| 951 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 952 | } | |||
| 953 | ||||
| 954 | public: | |||
| 955 | // Starting a scope, the nearest var scope that a direct eval can | |||
| 956 | // introduce vars on. | |||
| 957 | static Scope* nearestVarScopeForDirectEval(Scope* scope); | |||
| 958 | ||||
| 959 | uint32_t nextFrameSlot() const { return data().slotInfo.nextFrameSlot; } | |||
| 960 | ||||
| 961 | bool strict() const { return kind() == ScopeKind::StrictEval; } | |||
| 962 | ||||
| 963 | bool hasBindings() const { return data().length > 0; } | |||
| 964 | ||||
| 965 | bool isNonGlobal() const { | |||
| 966 | if (strict()) { | |||
| 967 | return true; | |||
| 968 | } | |||
| 969 | return !nearestVarScopeForDirectEval(enclosing())->is<GlobalScope>(); | |||
| 970 | } | |||
| 971 | }; | |||
| 972 | ||||
| 973 | template <> | |||
| 974 | inline bool Scope::is<EvalScope>() const { | |||
| 975 | return kind_ == ScopeKind::Eval || kind_ == ScopeKind::StrictEval; | |||
| 976 | } | |||
| 977 | ||||
| 978 | // | |||
| 979 | // Scope corresponding to the toplevel script in an ES module. | |||
| 980 | // | |||
| 981 | // Like GlobalScopes, these scopes contain both vars and lexical bindings, as | |||
| 982 | // the treating of imports and exports requires putting them in one scope. | |||
| 983 | // | |||
| 984 | // Corresponds to a ModuleEnvironmentObject on the environment chain. | |||
| 985 | // | |||
| 986 | class ModuleScope : public Scope { | |||
| 987 | friend class GCMarker; | |||
| 988 | friend class AbstractBindingIter<JSAtom>; | |||
| 989 | friend class Scope; | |||
| 990 | friend class AbstractScopePtr; | |||
| 991 | friend class frontend::ScopeStencil; | |||
| 992 | static const ScopeKind classScopeKind_ = ScopeKind::Module; | |||
| 993 | ||||
| 994 | public: | |||
| 995 | struct SlotInfo { | |||
| 996 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 997 | // scope. | |||
| 998 | uint32_t nextFrameSlot = 0; | |||
| 999 | ||||
| 1000 | // Bindings are sorted by kind. | |||
| 1001 | // | |||
| 1002 | // imports - [0, varStart) | |||
| 1003 | // vars - [varStart, letStart) | |||
| 1004 | // lets - [letStart, constStart) | |||
| 1005 | // consts - [constStart, length) | |||
| 1006 | uint32_t varStart = 0; | |||
| 1007 | uint32_t letStart = 0; | |||
| 1008 | uint32_t constStart = 0; | |||
| 1009 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1010 | // consts - [constStart, usingStart) | |||
| 1011 | // usings - [usingStart, length) | |||
| 1012 | uint32_t usingStart = 0; | |||
| 1013 | #endif | |||
| 1014 | }; | |||
| 1015 | ||||
| 1016 | struct alignas(ScopeDataAlignBytes) RuntimeData | |||
| 1017 | : public AbstractBaseScopeData<JSAtom> { | |||
| 1018 | SlotInfo slotInfo; | |||
| 1019 | // The module of the scope. | |||
| 1020 | HeapPtr<ModuleObject*> module = {}; | |||
| 1021 | ||||
| 1022 | explicit RuntimeData(size_t length); | |||
| 1023 | RuntimeData() = delete; | |||
| 1024 | ||||
| 1025 | void trace(JSTracer* trc); | |||
| 1026 | }; | |||
| 1027 | ||||
| 1028 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 1029 | ||||
| 1030 | template <typename NameT> | |||
| 1031 | using AbstractData = | |||
| 1032 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 1033 | RuntimeData, ParserData>; | |||
| 1034 | ||||
| 1035 | private: | |||
| 1036 | static void prepareForScopeCreation(ModuleScope::ParserData* data, | |||
| 1037 | mozilla::Maybe<uint32_t>* envShape); | |||
| 1038 | ||||
| 1039 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 1040 | ||||
| 1041 | const RuntimeData& data() const { | |||
| 1042 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 1043 | } | |||
| 1044 | ||||
| 1045 | public: | |||
| 1046 | uint32_t nextFrameSlot() const { return data().slotInfo.nextFrameSlot; } | |||
| 1047 | ||||
| 1048 | ModuleObject* module() const { return data().module; } | |||
| 1049 | void initModule(ModuleObject* mod) { return data().module.init(mod); } | |||
| 1050 | ||||
| 1051 | // Off-thread compilation needs to calculate environmentChainLength for | |||
| 1052 | // an emptyGlobalScope where the global may not be available. | |||
| 1053 | static const size_t EnclosingEnvironmentChainLength = 1; | |||
| 1054 | }; | |||
| 1055 | ||||
| 1056 | class WasmInstanceScope : public Scope { | |||
| 1057 | friend class AbstractBindingIter<JSAtom>; | |||
| 1058 | friend class Scope; | |||
| 1059 | friend class GCMarker; | |||
| 1060 | friend class AbstractScopePtr; | |||
| 1061 | static const ScopeKind classScopeKind_ = ScopeKind::WasmInstance; | |||
| 1062 | ||||
| 1063 | public: | |||
| 1064 | struct SlotInfo { | |||
| 1065 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 1066 | // scope. | |||
| 1067 | uint32_t nextFrameSlot = 0; | |||
| 1068 | ||||
| 1069 | // Bindings list the WASM memories and globals. | |||
| 1070 | // | |||
| 1071 | // memories - [0, globalsStart) | |||
| 1072 | // globals - [globalsStart, length) | |||
| 1073 | uint32_t memoriesStart = 0; | |||
| 1074 | uint32_t globalsStart = 0; | |||
| 1075 | }; | |||
| 1076 | ||||
| 1077 | struct alignas(ScopeDataAlignBytes) RuntimeData | |||
| 1078 | : public AbstractBaseScopeData<JSAtom> { | |||
| 1079 | SlotInfo slotInfo; | |||
| 1080 | // The wasm instance of the scope. | |||
| 1081 | HeapPtr<WasmInstanceObject*> instance = {}; | |||
| 1082 | ||||
| 1083 | explicit RuntimeData(size_t length); | |||
| 1084 | RuntimeData() = delete; | |||
| 1085 | ||||
| 1086 | void trace(JSTracer* trc); | |||
| 1087 | }; | |||
| 1088 | ||||
| 1089 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 1090 | ||||
| 1091 | template <typename NameT> | |||
| 1092 | using AbstractData = | |||
| 1093 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 1094 | RuntimeData, ParserData>; | |||
| 1095 | ||||
| 1096 | static WasmInstanceScope* create(JSContext* cx, WasmInstanceObject* instance); | |||
| 1097 | ||||
| 1098 | private: | |||
| 1099 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 1100 | ||||
| 1101 | const RuntimeData& data() const { | |||
| 1102 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 1103 | } | |||
| 1104 | ||||
| 1105 | public: | |||
| 1106 | WasmInstanceObject* instance() const { return data().instance; } | |||
| 1107 | ||||
| 1108 | uint32_t memoriesStart() const { return data().slotInfo.memoriesStart; } | |||
| 1109 | ||||
| 1110 | uint32_t globalsStart() const { return data().slotInfo.globalsStart; } | |||
| 1111 | ||||
| 1112 | uint32_t namesCount() const { return data().length; } | |||
| 1113 | }; | |||
| 1114 | ||||
| 1115 | // Scope corresponding to the wasm function. A WasmFunctionScope is used by | |||
| 1116 | // Debugger only, and not for wasm execution. | |||
| 1117 | // | |||
| 1118 | class WasmFunctionScope : public Scope { | |||
| 1119 | friend class AbstractBindingIter<JSAtom>; | |||
| 1120 | friend class Scope; | |||
| 1121 | friend class GCMarker; | |||
| 1122 | friend class AbstractScopePtr; | |||
| 1123 | static const ScopeKind classScopeKind_ = ScopeKind::WasmFunction; | |||
| 1124 | ||||
| 1125 | public: | |||
| 1126 | struct SlotInfo { | |||
| 1127 | // Frame slots [0, nextFrameSlot) are live when this is the innermost | |||
| 1128 | // scope. | |||
| 1129 | uint32_t nextFrameSlot = 0; | |||
| 1130 | ||||
| 1131 | // Bindings are the local variable names. | |||
| 1132 | // | |||
| 1133 | // vars - [0, length) | |||
| 1134 | }; | |||
| 1135 | ||||
| 1136 | using RuntimeData = RuntimeScopeData<SlotInfo>; | |||
| 1137 | using ParserData = ParserScopeData<SlotInfo>; | |||
| 1138 | ||||
| 1139 | template <typename NameT> | |||
| 1140 | using AbstractData = | |||
| 1141 | typename std::conditional_t<std::is_same<NameT, JSAtom>::value, | |||
| 1142 | RuntimeData, ParserData>; | |||
| 1143 | ||||
| 1144 | static WasmFunctionScope* create(JSContext* cx, Handle<Scope*> enclosing, | |||
| 1145 | uint32_t funcIndex); | |||
| 1146 | ||||
| 1147 | private: | |||
| 1148 | RuntimeData& data() { return *static_cast<RuntimeData*>(rawData()); } | |||
| 1149 | ||||
| 1150 | const RuntimeData& data() const { | |||
| 1151 | return *static_cast<const RuntimeData*>(rawData()); | |||
| 1152 | } | |||
| 1153 | }; | |||
| 1154 | ||||
| 1155 | template <typename F> | |||
| 1156 | void Scope::applyScopeDataTyped(F&& f) { | |||
| 1157 | switch (kind()) { | |||
| 1158 | case ScopeKind::Function: { | |||
| 1159 | f(&as<FunctionScope>().data()); | |||
| 1160 | break; | |||
| 1161 | case ScopeKind::FunctionBodyVar: | |||
| 1162 | f(&as<VarScope>().data()); | |||
| 1163 | break; | |||
| 1164 | case ScopeKind::Lexical: | |||
| 1165 | case ScopeKind::SimpleCatch: | |||
| 1166 | case ScopeKind::Catch: | |||
| 1167 | case ScopeKind::NamedLambda: | |||
| 1168 | case ScopeKind::StrictNamedLambda: | |||
| 1169 | case ScopeKind::FunctionLexical: | |||
| 1170 | f(&as<LexicalScope>().data()); | |||
| 1171 | break; | |||
| 1172 | case ScopeKind::ClassBody: | |||
| 1173 | f(&as<ClassBodyScope>().data()); | |||
| 1174 | break; | |||
| 1175 | case ScopeKind::With: | |||
| 1176 | // With scopes do not have data. | |||
| 1177 | break; | |||
| 1178 | case ScopeKind::Eval: | |||
| 1179 | case ScopeKind::StrictEval: | |||
| 1180 | f(&as<EvalScope>().data()); | |||
| 1181 | break; | |||
| 1182 | case ScopeKind::Global: | |||
| 1183 | case ScopeKind::NonSyntactic: | |||
| 1184 | f(&as<GlobalScope>().data()); | |||
| 1185 | break; | |||
| 1186 | case ScopeKind::Module: | |||
| 1187 | f(&as<ModuleScope>().data()); | |||
| 1188 | break; | |||
| 1189 | case ScopeKind::WasmInstance: | |||
| 1190 | f(&as<WasmInstanceScope>().data()); | |||
| 1191 | break; | |||
| 1192 | case ScopeKind::WasmFunction: | |||
| 1193 | f(&as<WasmFunctionScope>().data()); | |||
| 1194 | break; | |||
| 1195 | } | |||
| 1196 | } | |||
| 1197 | } | |||
| 1198 | ||||
| 1199 | // | |||
| 1200 | // An iterator for a Scope's bindings. This is the source of truth for frame | |||
| 1201 | // and environment object layout. | |||
| 1202 | // | |||
| 1203 | // It may be placed in GC containers; for example: | |||
| 1204 | // | |||
| 1205 | // for (Rooted<BindingIter> bi(cx, BindingIter(scope)); bi; bi++) { | |||
| 1206 | // use(bi); | |||
| 1207 | // SomeMayGCOperation(); | |||
| 1208 | // use(bi); | |||
| 1209 | // } | |||
| 1210 | // | |||
| 1211 | template <typename NameT> | |||
| 1212 | class BaseAbstractBindingIter { | |||
| 1213 | protected: | |||
| 1214 | // Bindings are sorted by kind. Because different Scopes have differently | |||
| 1215 | // laid out {Runtime,Parser}Data for packing, BindingIter must handle all | |||
| 1216 | // binding kinds. | |||
| 1217 | // | |||
| 1218 | // Kind ranges: | |||
| 1219 | // | |||
| 1220 | // imports - [0, positionalFormalStart) | |||
| 1221 | // positional formals - [positionalFormalStart, nonPositionalFormalStart) | |||
| 1222 | // other formals - [nonPositionalParamStart, varStart) | |||
| 1223 | // vars - [varStart, letStart) | |||
| 1224 | // lets - [letStart, constStart) | |||
| 1225 | // consts - [constStart, syntheticStart) | |||
| 1226 | // synthetic - [syntheticStart, privateMethodStart) | |||
| 1227 | // private methods = [privateMethodStart, length) | |||
| 1228 | // | |||
| 1229 | // If ENABLE_EXPLICIT_RESOURCE_MANAGEMENT is set, the consts range is split | |||
| 1230 | // into the following: | |||
| 1231 | // consts - [constStart, usingStart) | |||
| 1232 | // usings - [usingStart, syntheticStart) | |||
| 1233 | // | |||
| 1234 | // Access method when not closed over: | |||
| 1235 | // | |||
| 1236 | // imports - name | |||
| 1237 | // positional formals - argument slot | |||
| 1238 | // other formals - frame slot | |||
| 1239 | // vars - frame slot | |||
| 1240 | // lets - frame slot | |||
| 1241 | // consts - frame slot | |||
| 1242 | // synthetic - frame slot | |||
| 1243 | // private methods - frame slot | |||
| 1244 | // | |||
| 1245 | // Access method when closed over: | |||
| 1246 | // | |||
| 1247 | // imports - name | |||
| 1248 | // positional formals - environment slot or name | |||
| 1249 | // other formals - environment slot or name | |||
| 1250 | // vars - environment slot or name | |||
| 1251 | // lets - environment slot or name | |||
| 1252 | // consts - environment slot or name | |||
| 1253 | // synthetic - environment slot or name | |||
| 1254 | // private methods - environment slot or name | |||
| 1255 | MOZ_INIT_OUTSIDE_CTOR uint32_t positionalFormalStart_; | |||
| 1256 | MOZ_INIT_OUTSIDE_CTOR uint32_t nonPositionalFormalStart_; | |||
| 1257 | MOZ_INIT_OUTSIDE_CTOR uint32_t varStart_; | |||
| 1258 | MOZ_INIT_OUTSIDE_CTOR uint32_t letStart_; | |||
| 1259 | MOZ_INIT_OUTSIDE_CTOR uint32_t constStart_; | |||
| 1260 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1261 | MOZ_INIT_OUTSIDE_CTOR uint32_t usingStart_; | |||
| 1262 | #endif | |||
| 1263 | MOZ_INIT_OUTSIDE_CTOR uint32_t syntheticStart_; | |||
| 1264 | MOZ_INIT_OUTSIDE_CTOR uint32_t privateMethodStart_; | |||
| 1265 | MOZ_INIT_OUTSIDE_CTOR uint32_t length_; | |||
| 1266 | ||||
| 1267 | MOZ_INIT_OUTSIDE_CTOR uint32_t index_; | |||
| 1268 | ||||
| 1269 | enum Flags : uint8_t { | |||
| 1270 | CannotHaveSlots = 0, | |||
| 1271 | CanHaveArgumentSlots = 1 << 0, | |||
| 1272 | CanHaveFrameSlots = 1 << 1, | |||
| 1273 | CanHaveEnvironmentSlots = 1 << 2, | |||
| 1274 | ||||
| 1275 | // See comment in settle below. | |||
| 1276 | HasFormalParameterExprs = 1 << 3, | |||
| 1277 | IgnoreDestructuredFormalParameters = 1 << 4, | |||
| 1278 | ||||
| 1279 | // Truly I hate named lambdas. | |||
| 1280 | IsNamedLambda = 1 << 5 | |||
| 1281 | }; | |||
| 1282 | ||||
| 1283 | static const uint8_t CanHaveSlotsMask = 0x7; | |||
| 1284 | ||||
| 1285 | MOZ_INIT_OUTSIDE_CTOR uint8_t flags_; | |||
| 1286 | MOZ_INIT_OUTSIDE_CTOR uint16_t argumentSlot_; | |||
| 1287 | MOZ_INIT_OUTSIDE_CTOR uint32_t frameSlot_; | |||
| 1288 | MOZ_INIT_OUTSIDE_CTOR uint32_t environmentSlot_; | |||
| 1289 | ||||
| 1290 | MOZ_INIT_OUTSIDE_CTOR AbstractBindingName<NameT>* names_; | |||
| 1291 | ||||
| 1292 | void init(uint32_t positionalFormalStart, uint32_t nonPositionalFormalStart, | |||
| 1293 | uint32_t varStart, uint32_t letStart, uint32_t constStart, | |||
| 1294 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1295 | uint32_t usingStart, | |||
| 1296 | #endif | |||
| 1297 | uint32_t syntheticStart, uint32_t privateMethodStart, uint8_t flags, | |||
| 1298 | uint32_t firstFrameSlot, uint32_t firstEnvironmentSlot, | |||
| 1299 | mozilla::Span<AbstractBindingName<NameT>> names) { | |||
| 1300 | positionalFormalStart_ = positionalFormalStart; | |||
| 1301 | nonPositionalFormalStart_ = nonPositionalFormalStart; | |||
| 1302 | varStart_ = varStart; | |||
| 1303 | letStart_ = letStart; | |||
| 1304 | constStart_ = constStart; | |||
| 1305 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1306 | usingStart_ = usingStart; | |||
| 1307 | #endif | |||
| 1308 | syntheticStart_ = syntheticStart; | |||
| 1309 | privateMethodStart_ = privateMethodStart; | |||
| 1310 | length_ = names.size(); | |||
| 1311 | ||||
| 1312 | index_ = 0; | |||
| 1313 | flags_ = flags; | |||
| 1314 | argumentSlot_ = 0; | |||
| 1315 | frameSlot_ = firstFrameSlot; | |||
| 1316 | environmentSlot_ = firstEnvironmentSlot; | |||
| 1317 | names_ = names.data(); | |||
| 1318 | ||||
| 1319 | settle(); | |||
| 1320 | } | |||
| 1321 | ||||
| 1322 | void init(LexicalScope::AbstractData<NameT>& data, uint32_t firstFrameSlot, | |||
| 1323 | uint8_t flags); | |||
| 1324 | ||||
| 1325 | void init(ClassBodyScope::AbstractData<NameT>& data, uint32_t firstFrameSlot); | |||
| 1326 | void init(FunctionScope::AbstractData<NameT>& data, uint8_t flags); | |||
| 1327 | ||||
| 1328 | void init(VarScope::AbstractData<NameT>& data, uint32_t firstFrameSlot); | |||
| 1329 | void init(GlobalScope::AbstractData<NameT>& data); | |||
| 1330 | void init(EvalScope::AbstractData<NameT>& data, bool strict); | |||
| 1331 | void init(ModuleScope::AbstractData<NameT>& data); | |||
| 1332 | void init(WasmInstanceScope::AbstractData<NameT>& data); | |||
| 1333 | void init(WasmFunctionScope::AbstractData<NameT>& data); | |||
| 1334 | ||||
| 1335 | bool hasFormalParameterExprs() const { | |||
| 1336 | return flags_ & HasFormalParameterExprs; | |||
| 1337 | } | |||
| 1338 | ||||
| 1339 | bool ignoreDestructuredFormalParameters() const { | |||
| 1340 | return flags_ & IgnoreDestructuredFormalParameters; | |||
| 1341 | } | |||
| 1342 | ||||
| 1343 | bool isNamedLambda() const { return flags_ & IsNamedLambda; } | |||
| 1344 | ||||
| 1345 | void increment() { | |||
| 1346 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1346); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1346; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1347 | if (flags_ & CanHaveSlotsMask) { | |||
| 1348 | if (canHaveArgumentSlots()) { | |||
| 1349 | if (index_ < nonPositionalFormalStart_) { | |||
| 1350 | MOZ_ASSERT(index_ >= positionalFormalStart_)do { static_assert( mozilla::detail::AssertionConditionType< decltype(index_ >= positionalFormalStart_)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(index_ >= positionalFormalStart_ ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "index_ >= positionalFormalStart_", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1350); AnnotateMozCrashReason("MOZ_ASSERT" "(" "index_ >= positionalFormalStart_" ")"); do { *((volatile int*)__null) = 1350; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1351 | argumentSlot_++; | |||
| 1352 | } | |||
| 1353 | } | |||
| 1354 | if (closedOver()) { | |||
| 1355 | // Imports must not be given known slots. They are | |||
| 1356 | // indirect bindings. | |||
| 1357 | MOZ_ASSERT(kind() != BindingKind::Import)do { static_assert( mozilla::detail::AssertionConditionType< decltype(kind() != BindingKind::Import)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind() != BindingKind::Import ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "kind() != BindingKind::Import", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1357); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind() != BindingKind::Import" ")"); do { *((volatile int*)__null) = 1357; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1358 | MOZ_ASSERT(canHaveEnvironmentSlots())do { static_assert( mozilla::detail::AssertionConditionType< decltype(canHaveEnvironmentSlots())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(canHaveEnvironmentSlots()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("canHaveEnvironmentSlots()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1358); AnnotateMozCrashReason("MOZ_ASSERT" "(" "canHaveEnvironmentSlots()" ")"); do { *((volatile int*)__null) = 1358; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1359 | environmentSlot_++; | |||
| 1360 | } else if (canHaveFrameSlots()) { | |||
| 1361 | // Usually positional formal parameters don't have frame | |||
| 1362 | // slots, except when there are parameter expressions, in | |||
| 1363 | // which case they act like lets. | |||
| 1364 | if (index_ >= nonPositionalFormalStart_ || | |||
| 1365 | (hasFormalParameterExprs() && name())) { | |||
| 1366 | frameSlot_++; | |||
| 1367 | } | |||
| 1368 | } | |||
| 1369 | } | |||
| 1370 | index_++; | |||
| 1371 | } | |||
| 1372 | ||||
| 1373 | void settle() { | |||
| 1374 | if (ignoreDestructuredFormalParameters()) { | |||
| 1375 | while (!done() && !name()) { | |||
| 1376 | increment(); | |||
| 1377 | } | |||
| 1378 | } | |||
| 1379 | } | |||
| 1380 | ||||
| 1381 | BaseAbstractBindingIter() = default; | |||
| 1382 | ||||
| 1383 | public: | |||
| 1384 | BaseAbstractBindingIter(LexicalScope::AbstractData<NameT>& data, | |||
| 1385 | uint32_t firstFrameSlot, bool isNamedLambda) { | |||
| 1386 | init(data, firstFrameSlot, isNamedLambda ? IsNamedLambda : 0); | |||
| 1387 | } | |||
| 1388 | ||||
| 1389 | BaseAbstractBindingIter(ClassBodyScope::AbstractData<NameT>& data, | |||
| 1390 | uint32_t firstFrameSlot) { | |||
| 1391 | init(data, firstFrameSlot); | |||
| 1392 | } | |||
| 1393 | ||||
| 1394 | BaseAbstractBindingIter(FunctionScope::AbstractData<NameT>& data, | |||
| 1395 | bool hasParameterExprs) { | |||
| 1396 | init(data, IgnoreDestructuredFormalParameters | | |||
| 1397 | (hasParameterExprs ? HasFormalParameterExprs : 0)); | |||
| 1398 | } | |||
| 1399 | ||||
| 1400 | BaseAbstractBindingIter(VarScope::AbstractData<NameT>& data, | |||
| 1401 | uint32_t firstFrameSlot) { | |||
| 1402 | init(data, firstFrameSlot); | |||
| 1403 | } | |||
| 1404 | ||||
| 1405 | explicit BaseAbstractBindingIter(GlobalScope::AbstractData<NameT>& data) { | |||
| 1406 | init(data); | |||
| 1407 | } | |||
| 1408 | ||||
| 1409 | explicit BaseAbstractBindingIter(ModuleScope::AbstractData<NameT>& data) { | |||
| 1410 | init(data); | |||
| 1411 | } | |||
| 1412 | ||||
| 1413 | explicit BaseAbstractBindingIter( | |||
| 1414 | WasmFunctionScope::AbstractData<NameT>& data) { | |||
| 1415 | init(data); | |||
| 1416 | } | |||
| 1417 | ||||
| 1418 | BaseAbstractBindingIter(EvalScope::AbstractData<NameT>& data, bool strict) { | |||
| 1419 | init(data, strict); | |||
| 1420 | } | |||
| 1421 | ||||
| 1422 | MOZ_IMPLICIT BaseAbstractBindingIter( | |||
| 1423 | const BaseAbstractBindingIter<NameT>& bi) = default; | |||
| 1424 | ||||
| 1425 | bool done() const { return index_ == length_; } | |||
| 1426 | ||||
| 1427 | explicit operator bool() const { return !done(); } | |||
| 1428 | ||||
| 1429 | void operator++(int) { | |||
| 1430 | increment(); | |||
| 1431 | settle(); | |||
| 1432 | } | |||
| 1433 | ||||
| 1434 | bool isLast() const { | |||
| 1435 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1435); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1435; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1436 | return index_ + 1 == length_; | |||
| 1437 | } | |||
| 1438 | ||||
| 1439 | bool canHaveArgumentSlots() const { return flags_ & CanHaveArgumentSlots; } | |||
| 1440 | ||||
| 1441 | bool canHaveFrameSlots() const { return flags_ & CanHaveFrameSlots; } | |||
| 1442 | ||||
| 1443 | bool canHaveEnvironmentSlots() const { | |||
| 1444 | return flags_ & CanHaveEnvironmentSlots; | |||
| 1445 | } | |||
| 1446 | ||||
| 1447 | typename AbstractBindingName<NameT>::NamePointerT name() const { | |||
| 1448 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1448); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1448; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1449 | return names_[index_].name(); | |||
| 1450 | } | |||
| 1451 | ||||
| 1452 | bool closedOver() const { | |||
| 1453 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1453); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1453; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1454 | return names_[index_].closedOver(); | |||
| 1455 | } | |||
| 1456 | ||||
| 1457 | BindingLocation location() const { | |||
| 1458 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1458); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1458; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1459 | if (!(flags_ & CanHaveSlotsMask)) { | |||
| 1460 | return BindingLocation::Global(); | |||
| 1461 | } | |||
| 1462 | if (index_ < positionalFormalStart_) { | |||
| 1463 | return BindingLocation::Import(); | |||
| 1464 | } | |||
| 1465 | if (closedOver()) { | |||
| 1466 | MOZ_ASSERT(canHaveEnvironmentSlots())do { static_assert( mozilla::detail::AssertionConditionType< decltype(canHaveEnvironmentSlots())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(canHaveEnvironmentSlots()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("canHaveEnvironmentSlots()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1466); AnnotateMozCrashReason("MOZ_ASSERT" "(" "canHaveEnvironmentSlots()" ")"); do { *((volatile int*)__null) = 1466; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1467 | return BindingLocation::Environment(environmentSlot_); | |||
| 1468 | } | |||
| 1469 | if (index_ < nonPositionalFormalStart_ && canHaveArgumentSlots()) { | |||
| 1470 | return BindingLocation::Argument(argumentSlot_); | |||
| 1471 | } | |||
| 1472 | if (canHaveFrameSlots()) { | |||
| 1473 | return BindingLocation::Frame(frameSlot_); | |||
| 1474 | } | |||
| 1475 | MOZ_ASSERT(isNamedLambda())do { static_assert( mozilla::detail::AssertionConditionType< decltype(isNamedLambda())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(isNamedLambda()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("isNamedLambda()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1475); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isNamedLambda()" ")"); do { *((volatile int*)__null) = 1475; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1476 | return BindingLocation::NamedLambdaCallee(); | |||
| 1477 | } | |||
| 1478 | ||||
| 1479 | BindingKind kind() const { | |||
| 1480 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1480); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1480; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1481 | if (index_ < positionalFormalStart_) { | |||
| 1482 | return BindingKind::Import; | |||
| 1483 | } | |||
| 1484 | if (index_ < varStart_) { | |||
| 1485 | // When the parameter list has expressions, the parameters act | |||
| 1486 | // like lexical bindings and have TDZ. | |||
| 1487 | if (hasFormalParameterExprs()) { | |||
| 1488 | return BindingKind::Let; | |||
| 1489 | } | |||
| 1490 | return BindingKind::FormalParameter; | |||
| 1491 | } | |||
| 1492 | if (index_ < letStart_) { | |||
| 1493 | return BindingKind::Var; | |||
| 1494 | } | |||
| 1495 | if (index_ < constStart_) { | |||
| 1496 | return BindingKind::Let; | |||
| 1497 | } | |||
| 1498 | #ifdef ENABLE_EXPLICIT_RESOURCE_MANAGEMENT | |||
| 1499 | if (index_ < usingStart_) { | |||
| 1500 | return isNamedLambda() ? BindingKind::NamedLambdaCallee | |||
| 1501 | : BindingKind::Const; | |||
| 1502 | } | |||
| 1503 | if (index_ < syntheticStart_) { | |||
| 1504 | return BindingKind::Using; | |||
| 1505 | } | |||
| 1506 | #else | |||
| 1507 | if (index_ < syntheticStart_) { | |||
| 1508 | return isNamedLambda() ? BindingKind::NamedLambdaCallee | |||
| 1509 | : BindingKind::Const; | |||
| 1510 | } | |||
| 1511 | #endif | |||
| 1512 | if (index_ < privateMethodStart_) { | |||
| 1513 | return BindingKind::Synthetic; | |||
| 1514 | } | |||
| 1515 | return BindingKind::PrivateMethod; | |||
| 1516 | } | |||
| 1517 | ||||
| 1518 | js::frontend::NameLocation nameLocation() const { | |||
| 1519 | using js::frontend::NameLocation; | |||
| 1520 | ||||
| 1521 | BindingKind bindKind = kind(); | |||
| 1522 | BindingLocation bl = location(); | |||
| 1523 | switch (bl.kind()) { | |||
| 1524 | case BindingLocation::Kind::Global: | |||
| 1525 | return NameLocation::Global(bindKind); | |||
| 1526 | case BindingLocation::Kind::Argument: | |||
| 1527 | return NameLocation::ArgumentSlot(bl.argumentSlot()); | |||
| 1528 | case BindingLocation::Kind::Frame: | |||
| 1529 | return NameLocation::FrameSlot(bindKind, bl.slot()); | |||
| 1530 | case BindingLocation::Kind::Environment: | |||
| 1531 | return NameLocation::EnvironmentCoordinate(bindKind, 0, bl.slot()); | |||
| 1532 | case BindingLocation::Kind::Import: | |||
| 1533 | return NameLocation::Import(); | |||
| 1534 | case BindingLocation::Kind::NamedLambdaCallee: | |||
| 1535 | return NameLocation::NamedLambdaCallee(); | |||
| 1536 | } | |||
| 1537 | MOZ_CRASH("Bad BindingKind")do { do { } while (false); MOZ_ReportCrash("" "Bad BindingKind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1537); AnnotateMozCrashReason("MOZ_CRASH(" "Bad BindingKind" ")"); do { *((volatile int*)__null) = 1537; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 1538 | } | |||
| 1539 | ||||
| 1540 | bool isTopLevelFunction() const { | |||
| 1541 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1541); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1541; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1542 | bool result = names_[index_].isTopLevelFunction(); | |||
| 1543 | MOZ_ASSERT_IF(result, kind() == BindingKind::Var)do { if (result) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(kind() == BindingKind::Var)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(kind() == BindingKind::Var)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("kind() == BindingKind::Var" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1543); AnnotateMozCrashReason("MOZ_ASSERT" "(" "kind() == BindingKind::Var" ")"); do { *((volatile int*)__null) = 1543; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | |||
| 1544 | return result; | |||
| 1545 | } | |||
| 1546 | ||||
| 1547 | bool hasArgumentSlot() const { | |||
| 1548 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1548); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1548; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1549 | if (hasFormalParameterExprs()) { | |||
| 1550 | return false; | |||
| 1551 | } | |||
| 1552 | return index_ >= positionalFormalStart_ && | |||
| 1553 | index_ < nonPositionalFormalStart_; | |||
| 1554 | } | |||
| 1555 | ||||
| 1556 | uint16_t argumentSlot() const { | |||
| 1557 | MOZ_ASSERT(canHaveArgumentSlots())do { static_assert( mozilla::detail::AssertionConditionType< decltype(canHaveArgumentSlots())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(canHaveArgumentSlots()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("canHaveArgumentSlots()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1557); AnnotateMozCrashReason("MOZ_ASSERT" "(" "canHaveArgumentSlots()" ")"); do { *((volatile int*)__null) = 1557; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1558 | return mozilla::AssertedCast<uint16_t>(index_); | |||
| 1559 | } | |||
| 1560 | ||||
| 1561 | uint32_t nextFrameSlot() const { | |||
| 1562 | MOZ_ASSERT(canHaveFrameSlots())do { static_assert( mozilla::detail::AssertionConditionType< decltype(canHaveFrameSlots())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(canHaveFrameSlots()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("canHaveFrameSlots()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1562); AnnotateMozCrashReason("MOZ_ASSERT" "(" "canHaveFrameSlots()" ")"); do { *((volatile int*)__null) = 1562; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1563 | return frameSlot_; | |||
| 1564 | } | |||
| 1565 | ||||
| 1566 | uint32_t nextEnvironmentSlot() const { | |||
| 1567 | MOZ_ASSERT(canHaveEnvironmentSlots())do { static_assert( mozilla::detail::AssertionConditionType< decltype(canHaveEnvironmentSlots())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(canHaveEnvironmentSlots()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("canHaveEnvironmentSlots()" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1567); AnnotateMozCrashReason("MOZ_ASSERT" "(" "canHaveEnvironmentSlots()" ")"); do { *((volatile int*)__null) = 1567; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1568 | return environmentSlot_; | |||
| 1569 | } | |||
| 1570 | }; | |||
| 1571 | ||||
| 1572 | template <typename NameT> | |||
| 1573 | class AbstractBindingIter; | |||
| 1574 | ||||
| 1575 | template <> | |||
| 1576 | class AbstractBindingIter<JSAtom> : public BaseAbstractBindingIter<JSAtom> { | |||
| 1577 | using Base = BaseAbstractBindingIter<JSAtom>; | |||
| 1578 | ||||
| 1579 | public: | |||
| 1580 | AbstractBindingIter(ScopeKind kind, BaseScopeData* data, | |||
| 1581 | uint32_t firstFrameSlot); | |||
| 1582 | ||||
| 1583 | explicit AbstractBindingIter(Scope* scope); | |||
| 1584 | explicit AbstractBindingIter(JSScript* script); | |||
| 1585 | ||||
| 1586 | using Base::Base; | |||
| 1587 | ||||
| 1588 | inline void trace(JSTracer* trc) { | |||
| 1589 | TraceNullableBindingNames(trc, names_, length_); | |||
| 1590 | } | |||
| 1591 | }; | |||
| 1592 | ||||
| 1593 | template <> | |||
| 1594 | class AbstractBindingIter<frontend::TaggedParserAtomIndex> | |||
| 1595 | : public BaseAbstractBindingIter<frontend::TaggedParserAtomIndex> { | |||
| 1596 | using Base = BaseAbstractBindingIter<frontend::TaggedParserAtomIndex>; | |||
| 1597 | ||||
| 1598 | public: | |||
| 1599 | explicit AbstractBindingIter(const frontend::ScopeStencilRef& ref); | |||
| 1600 | ||||
| 1601 | using Base::Base; | |||
| 1602 | }; | |||
| 1603 | ||||
| 1604 | void DumpBindings(JSContext* cx, Scope* scope); | |||
| 1605 | JSAtom* FrameSlotName(JSScript* script, jsbytecode* pc); | |||
| 1606 | ||||
| 1607 | SharedShape* EmptyEnvironmentShape(JSContext* cx, const JSClass* cls, | |||
| 1608 | uint32_t numSlots, ObjectFlags objectFlags); | |||
| 1609 | ||||
| 1610 | template <class T> | |||
| 1611 | SharedShape* EmptyEnvironmentShape(JSContext* cx) { | |||
| 1612 | return EmptyEnvironmentShape(cx, &T::class_, T::RESERVED_SLOTS, | |||
| 1613 | T::OBJECT_FLAGS); | |||
| 1614 | } | |||
| 1615 | ||||
| 1616 | // | |||
| 1617 | // PositionalFormalParameterIter is a refinement BindingIter that only iterates | |||
| 1618 | // over positional formal parameters of a function. | |||
| 1619 | // | |||
| 1620 | template <typename NameT> | |||
| 1621 | class BasePositionalFormalParamterIter : public AbstractBindingIter<NameT> { | |||
| 1622 | using Base = AbstractBindingIter<NameT>; | |||
| 1623 | ||||
| 1624 | protected: | |||
| 1625 | void settle() { | |||
| 1626 | if (this->index_ >= this->nonPositionalFormalStart_) { | |||
| 1627 | this->index_ = this->length_; | |||
| 1628 | } | |||
| 1629 | } | |||
| 1630 | ||||
| 1631 | public: | |||
| 1632 | using Base::Base; | |||
| 1633 | ||||
| 1634 | void operator++(int) { | |||
| 1635 | Base::operator++(1); | |||
| 1636 | settle(); | |||
| 1637 | } | |||
| 1638 | ||||
| 1639 | bool isDestructured() const { return !this->name(); } | |||
| 1640 | }; | |||
| 1641 | ||||
| 1642 | template <typename NameT> | |||
| 1643 | class AbstractPositionalFormalParameterIter; | |||
| 1644 | ||||
| 1645 | template <> | |||
| 1646 | class AbstractPositionalFormalParameterIter<JSAtom> | |||
| 1647 | : public BasePositionalFormalParamterIter<JSAtom> { | |||
| 1648 | using Base = BasePositionalFormalParamterIter<JSAtom>; | |||
| 1649 | ||||
| 1650 | public: | |||
| 1651 | explicit AbstractPositionalFormalParameterIter(Scope* scope); | |||
| 1652 | explicit AbstractPositionalFormalParameterIter(JSScript* script); | |||
| 1653 | ||||
| 1654 | using Base::Base; | |||
| 1655 | }; | |||
| 1656 | ||||
| 1657 | template <> | |||
| 1658 | class AbstractPositionalFormalParameterIter<frontend::TaggedParserAtomIndex> | |||
| 1659 | : public BasePositionalFormalParamterIter<frontend::TaggedParserAtomIndex> { | |||
| 1660 | using Base = | |||
| 1661 | BasePositionalFormalParamterIter<frontend::TaggedParserAtomIndex>; | |||
| 1662 | ||||
| 1663 | public: | |||
| 1664 | AbstractPositionalFormalParameterIter( | |||
| 1665 | FunctionScope::AbstractData<frontend::TaggedParserAtomIndex>& data, | |||
| 1666 | bool hasParameterExprs) | |||
| 1667 | : Base(data, hasParameterExprs) { | |||
| 1668 | settle(); | |||
| 1669 | } | |||
| 1670 | ||||
| 1671 | using Base::Base; | |||
| 1672 | }; | |||
| 1673 | ||||
| 1674 | using PositionalFormalParameterIter = | |||
| 1675 | AbstractPositionalFormalParameterIter<JSAtom>; | |||
| 1676 | ||||
| 1677 | // | |||
| 1678 | // Iterator for walking the scope chain. | |||
| 1679 | // | |||
| 1680 | // It may be placed in GC containers; for example: | |||
| 1681 | // | |||
| 1682 | // for (Rooted<ScopeIter> si(cx, ScopeIter(scope)); si; si++) { | |||
| 1683 | // use(si); | |||
| 1684 | // SomeMayGCOperation(); | |||
| 1685 | // use(si); | |||
| 1686 | // } | |||
| 1687 | // | |||
| 1688 | class MOZ_STACK_CLASS ScopeIter { | |||
| 1689 | Scope* scope_; | |||
| 1690 | ||||
| 1691 | public: | |||
| 1692 | explicit ScopeIter(Scope* scope) : scope_(scope) {} | |||
| 1693 | ||||
| 1694 | explicit ScopeIter(JSScript* script); | |||
| 1695 | ||||
| 1696 | explicit ScopeIter(const ScopeIter& si) = default; | |||
| 1697 | ||||
| 1698 | bool done() const { return !scope_; } | |||
| 1699 | ||||
| 1700 | explicit operator bool() const { return !done(); } | |||
| 1701 | ||||
| 1702 | void operator++(int) { | |||
| 1703 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1703); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1703; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1704 | scope_ = scope_->enclosing(); | |||
| 1705 | } | |||
| 1706 | ||||
| 1707 | Scope* scope() const { | |||
| 1708 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1708); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1708; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1709 | return scope_; | |||
| 1710 | } | |||
| 1711 | ||||
| 1712 | ScopeKind kind() const { | |||
| 1713 | MOZ_ASSERT(!done())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!done())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!done()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!done()", "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1713); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!done()" ")" ); do { *((volatile int*)__null) = 1713; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1714 | return scope_->kind(); | |||
| 1715 | } | |||
| 1716 | ||||
| 1717 | // Returns the shape of the environment if it is known. It is possible to | |||
| 1718 | // hasSyntacticEnvironment and to have no known shape, e.g., eval. | |||
| 1719 | SharedShape* environmentShape() const { return scope()->environmentShape(); } | |||
| 1720 | ||||
| 1721 | // Returns whether this scope has a syntactic environment (i.e., an | |||
| 1722 | // Environment that isn't a non-syntactic With or NonSyntacticVariables) | |||
| 1723 | // on the environment chain. | |||
| 1724 | bool hasSyntacticEnvironment() const; | |||
| 1725 | ||||
| 1726 | void trace(JSTracer* trc) { | |||
| 1727 | if (scope_) { | |||
| 1728 | TraceRoot(trc, &scope_, "scope iter scope"); | |||
| 1729 | } | |||
| 1730 | } | |||
| 1731 | }; | |||
| 1732 | ||||
| 1733 | // | |||
| 1734 | // Specializations of Rooted containers for the iterators. | |||
| 1735 | // | |||
| 1736 | ||||
| 1737 | template <typename Wrapper> | |||
| 1738 | class WrappedPtrOperations<BindingIter, Wrapper> { | |||
| 1739 | const BindingIter& iter() const { | |||
| 1740 | return static_cast<const Wrapper*>(this)->get(); | |||
| 1741 | } | |||
| 1742 | ||||
| 1743 | public: | |||
| 1744 | bool done() const { return iter().done(); } | |||
| 1745 | explicit operator bool() const { return !done(); } | |||
| 1746 | bool isLast() const { return iter().isLast(); } | |||
| 1747 | bool canHaveArgumentSlots() const { return iter().canHaveArgumentSlots(); } | |||
| 1748 | bool canHaveFrameSlots() const { return iter().canHaveFrameSlots(); } | |||
| 1749 | bool canHaveEnvironmentSlots() const { | |||
| 1750 | return iter().canHaveEnvironmentSlots(); | |||
| 1751 | } | |||
| 1752 | JSAtom* name() const { return iter().name(); } | |||
| 1753 | bool closedOver() const { return iter().closedOver(); } | |||
| 1754 | BindingLocation location() const { return iter().location(); } | |||
| 1755 | BindingKind kind() const { return iter().kind(); } | |||
| 1756 | bool isTopLevelFunction() const { return iter().isTopLevelFunction(); } | |||
| 1757 | bool hasArgumentSlot() const { return iter().hasArgumentSlot(); } | |||
| 1758 | uint16_t argumentSlot() const { return iter().argumentSlot(); } | |||
| 1759 | uint32_t nextFrameSlot() const { return iter().nextFrameSlot(); } | |||
| 1760 | uint32_t nextEnvironmentSlot() const { return iter().nextEnvironmentSlot(); } | |||
| 1761 | }; | |||
| 1762 | ||||
| 1763 | template <typename Wrapper> | |||
| 1764 | class MutableWrappedPtrOperations<BindingIter, Wrapper> | |||
| 1765 | : public WrappedPtrOperations<BindingIter, Wrapper> { | |||
| 1766 | BindingIter& iter() { return static_cast<Wrapper*>(this)->get(); } | |||
| 1767 | ||||
| 1768 | public: | |||
| 1769 | void operator++(int) { iter().operator++(1); } | |||
| 1770 | }; | |||
| 1771 | ||||
| 1772 | template <typename Wrapper> | |||
| 1773 | class WrappedPtrOperations<ScopeIter, Wrapper> { | |||
| 1774 | const ScopeIter& iter() const { | |||
| 1775 | return static_cast<const Wrapper*>(this)->get(); | |||
| 1776 | } | |||
| 1777 | ||||
| 1778 | public: | |||
| 1779 | bool done() const { return iter().done(); } | |||
| 1780 | explicit operator bool() const { return !done(); } | |||
| 1781 | Scope* scope() const { return iter().scope(); } | |||
| 1782 | ScopeKind kind() const { return iter().kind(); } | |||
| 1783 | SharedShape* environmentShape() const { return iter().environmentShape(); } | |||
| 1784 | bool hasSyntacticEnvironment() const { | |||
| 1785 | return iter().hasSyntacticEnvironment(); | |||
| 1786 | } | |||
| 1787 | }; | |||
| 1788 | ||||
| 1789 | template <typename Wrapper> | |||
| 1790 | class MutableWrappedPtrOperations<ScopeIter, Wrapper> | |||
| 1791 | : public WrappedPtrOperations<ScopeIter, Wrapper> { | |||
| 1792 | ScopeIter& iter() { return static_cast<Wrapper*>(this)->get(); } | |||
| 1793 | ||||
| 1794 | public: | |||
| 1795 | void operator++(int) { iter().operator++(1); } | |||
| 1796 | }; | |||
| 1797 | ||||
| 1798 | SharedShape* CreateEnvironmentShape(JSContext* cx, BindingIter& bi, | |||
| 1799 | const JSClass* cls, uint32_t numSlots, | |||
| 1800 | ObjectFlags objectFlags); | |||
| 1801 | ||||
| 1802 | SharedShape* CreateEnvironmentShapeForSyntheticModule( | |||
| 1803 | JSContext* cx, const JSClass* cls, uint32_t numSlots, | |||
| 1804 | Handle<ModuleObject*> module); | |||
| 1805 | ||||
| 1806 | SharedShape* EmptyEnvironmentShape(JSContext* cx, const JSClass* cls, | |||
| 1807 | uint32_t numSlots, ObjectFlags objectFlags); | |||
| 1808 | ||||
| 1809 | static inline size_t GetOffsetOfParserScopeDataTrailingNames(ScopeKind kind) { | |||
| 1810 | switch (kind) { | |||
| 1811 | // FunctionScope | |||
| 1812 | case ScopeKind::Function: | |||
| 1813 | return GetOffsetOfScopeDataTrailingNames<FunctionScope::ParserData>(); | |||
| 1814 | ||||
| 1815 | // VarScope | |||
| 1816 | case ScopeKind::FunctionBodyVar: | |||
| 1817 | return GetOffsetOfScopeDataTrailingNames<VarScope::ParserData>(); | |||
| 1818 | ||||
| 1819 | // LexicalScope | |||
| 1820 | case ScopeKind::Lexical: | |||
| 1821 | case ScopeKind::SimpleCatch: | |||
| 1822 | case ScopeKind::Catch: | |||
| 1823 | case ScopeKind::NamedLambda: | |||
| 1824 | case ScopeKind::StrictNamedLambda: | |||
| 1825 | case ScopeKind::FunctionLexical: | |||
| 1826 | return GetOffsetOfScopeDataTrailingNames<LexicalScope::ParserData>(); | |||
| 1827 | ||||
| 1828 | // ClassBodyScope | |||
| 1829 | case ScopeKind::ClassBody: | |||
| 1830 | return GetOffsetOfScopeDataTrailingNames<ClassBodyScope::ParserData>(); | |||
| 1831 | ||||
| 1832 | // EvalScope | |||
| 1833 | case ScopeKind::Eval: | |||
| 1834 | case ScopeKind::StrictEval: | |||
| 1835 | return GetOffsetOfScopeDataTrailingNames<EvalScope::ParserData>(); | |||
| 1836 | ||||
| 1837 | // GlobalScope | |||
| 1838 | case ScopeKind::Global: | |||
| 1839 | case ScopeKind::NonSyntactic: | |||
| 1840 | return GetOffsetOfScopeDataTrailingNames<GlobalScope::ParserData>(); | |||
| 1841 | ||||
| 1842 | // ModuleScope | |||
| 1843 | case ScopeKind::Module: | |||
| 1844 | return GetOffsetOfScopeDataTrailingNames<ModuleScope::ParserData>(); | |||
| 1845 | ||||
| 1846 | // WasmInstanceScope | |||
| 1847 | case ScopeKind::WasmInstance: | |||
| 1848 | return GetOffsetOfScopeDataTrailingNames<WasmInstanceScope::ParserData>(); | |||
| 1849 | ||||
| 1850 | // WasmFunctionScope | |||
| 1851 | case ScopeKind::WasmFunction: | |||
| 1852 | return GetOffsetOfScopeDataTrailingNames<WasmFunctionScope::ParserData>(); | |||
| 1853 | ||||
| 1854 | // WithScope doesn't have ScopeData. | |||
| 1855 | case ScopeKind::With: | |||
| 1856 | default: | |||
| 1857 | MOZ_CRASH("Unexpected ScopeKind")do { do { } while (false); MOZ_ReportCrash("" "Unexpected ScopeKind" , "/var/lib/jenkins/workspace/firefox-scan-build/js/src/vm/Scope.h" , 1857); AnnotateMozCrashReason("MOZ_CRASH(" "Unexpected ScopeKind" ")"); do { *((volatile int*)__null) = 1857; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 1858 | } | |||
| 1859 | ||||
| 1860 | return 0; | |||
| 1861 | } | |||
| 1862 | ||||
| 1863 | inline size_t SizeOfParserScopeData(ScopeKind kind, uint32_t length) { | |||
| 1864 | return GetOffsetOfParserScopeDataTrailingNames(kind) + | |||
| 1865 | sizeof(AbstractBindingName<frontend::TaggedParserAtomIndex>) * length; | |||
| 1866 | } | |||
| 1867 | ||||
| 1868 | inline mozilla::Span<AbstractBindingName<frontend::TaggedParserAtomIndex>> | |||
| 1869 | GetParserScopeDataTrailingNames( | |||
| 1870 | ScopeKind kind, | |||
| 1871 | AbstractBaseScopeData<frontend::TaggedParserAtomIndex>* data) { | |||
| 1872 | return mozilla::Span( | |||
| 1873 | reinterpret_cast<AbstractBindingName<frontend::TaggedParserAtomIndex>*>( | |||
| 1874 | uintptr_t(data) + GetOffsetOfParserScopeDataTrailingNames(kind)), | |||
| 1875 | data->length); | |||
| 1876 | } | |||
| 1877 | ||||
| 1878 | } // namespace js | |||
| 1879 | ||||
| 1880 | namespace JS { | |||
| 1881 | ||||
| 1882 | template <> | |||
| 1883 | struct GCPolicy<js::ScopeKind> : public IgnoreGCPolicy<js::ScopeKind> {}; | |||
| 1884 | ||||
| 1885 | template <typename T> | |||
| 1886 | struct ScopeDataGCPolicy : public NonGCPointerPolicy<T> {}; | |||
| 1887 | ||||
| 1888 | #define DEFINE_SCOPE_DATA_GCPOLICY(Data) \ | |||
| 1889 | template <> \ | |||
| 1890 | struct MapTypeToRootKind<Data*> { \ | |||
| 1891 | static const RootKind kind = RootKind::Traceable; \ | |||
| 1892 | }; \ | |||
| 1893 | template <> \ | |||
| 1894 | struct GCPolicy<Data*> : public ScopeDataGCPolicy<Data*> {} | |||
| 1895 | ||||
| 1896 | DEFINE_SCOPE_DATA_GCPOLICY(js::LexicalScope::RuntimeData); | |||
| 1897 | DEFINE_SCOPE_DATA_GCPOLICY(js::ClassBodyScope::RuntimeData); | |||
| 1898 | DEFINE_SCOPE_DATA_GCPOLICY(js::FunctionScope::RuntimeData); | |||
| 1899 | DEFINE_SCOPE_DATA_GCPOLICY(js::VarScope::RuntimeData); | |||
| 1900 | DEFINE_SCOPE_DATA_GCPOLICY(js::GlobalScope::RuntimeData); | |||
| 1901 | DEFINE_SCOPE_DATA_GCPOLICY(js::EvalScope::RuntimeData); | |||
| 1902 | DEFINE_SCOPE_DATA_GCPOLICY(js::ModuleScope::RuntimeData); | |||
| 1903 | DEFINE_SCOPE_DATA_GCPOLICY(js::WasmFunctionScope::RuntimeData); | |||
| 1904 | ||||
| 1905 | #undef DEFINE_SCOPE_DATA_GCPOLICY | |||
| 1906 | ||||
| 1907 | namespace ubi { | |||
| 1908 | ||||
| 1909 | template <> | |||
| 1910 | class Concrete<js::Scope> : TracerConcrete<js::Scope> { | |||
| 1911 | protected: | |||
| 1912 | explicit Concrete(js::Scope* ptr) : TracerConcrete<js::Scope>(ptr) {} | |||
| 1913 | ||||
| 1914 | public: | |||
| 1915 | static void construct(void* storage, js::Scope* ptr) { | |||
| 1916 | new (storage) Concrete(ptr); | |||
| 1917 | } | |||
| 1918 | ||||
| 1919 | CoarseType coarseType() const final { return CoarseType::Script; } | |||
| 1920 | ||||
| 1921 | Size size(mozilla::MallocSizeOf mallocSizeOf) const override; | |||
| 1922 | ||||
| 1923 | const char16_t* typeName() const override { return concreteTypeName; } | |||
| 1924 | static const char16_t concreteTypeName[]; | |||
| 1925 | }; | |||
| 1926 | ||||
| 1927 | } // namespace ubi | |||
| 1928 | } // namespace JS | |||
| 1929 | ||||
| 1930 | #endif // vm_Scope_h |