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/StringBuilder.h" // StringBuilder | |||
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 | StringBuilder 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 | StringBuilder 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 | StringBuilder 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 | StringBuilder 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::BigInt || tt == TokenKind::PrivateName; | |||
12006 | } | |||
12007 | ||||
12008 | template <class ParseHandler, typename Unit> | |||
12009 | typename ParseHandler::NodeResult | |||
12010 | GeneralParser<ParseHandler, Unit>::propertyOrMethodName( | |||
12011 | YieldHandling yieldHandling, PropertyNameContext propertyNameContext, | |||
12012 | const Maybe<DeclarationKind>& maybeDecl, ListNodeType propList, | |||
12013 | PropertyType* propType, TaggedParserAtomIndex* propAtomOut) { | |||
12014 | // We're parsing an object literal, class, or destructuring pattern; | |||
12015 | // propertyNameContext tells which one. This method parses any of the | |||
12016 | // following, storing the corresponding PropertyType in `*propType` to tell | |||
12017 | // the caller what we parsed: | |||
12018 | // | |||
12019 | // async [no LineTerminator here] PropertyName | |||
12020 | // ==> PropertyType::AsyncMethod | |||
12021 | // async [no LineTerminator here] * PropertyName | |||
12022 | // ==> PropertyType::AsyncGeneratorMethod | |||
12023 | // * PropertyName ==> PropertyType::GeneratorMethod | |||
12024 | // get PropertyName ==> PropertyType::Getter | |||
12025 | // set PropertyName ==> PropertyType::Setter | |||
12026 | // accessor PropertyName ==> PropertyType::FieldWithAccessor | |||
12027 | // PropertyName : ==> PropertyType::Normal | |||
12028 | // PropertyName ==> see below | |||
12029 | // | |||
12030 | // In the last case, where there's not a `:` token to consume, we peek at | |||
12031 | // (but don't consume) the next token to decide how to set `*propType`. | |||
12032 | // | |||
12033 | // `,` or `}` ==> PropertyType::Shorthand | |||
12034 | // `(` ==> PropertyType::Method | |||
12035 | // `=`, not in a class ==> PropertyType::CoverInitializedName | |||
12036 | // '=', in a class ==> PropertyType::Field | |||
12037 | // any token, in a class ==> PropertyType::Field (ASI) | |||
12038 | // | |||
12039 | // The caller must check `*propType` and throw if whatever we parsed isn't | |||
12040 | // allowed here (for example, a getter in a destructuring pattern). | |||
12041 | // | |||
12042 | // This method does *not* match `static` (allowed in classes) or `...` | |||
12043 | // (allowed in object literals and patterns). The caller must take care of | |||
12044 | // those before calling this method. | |||
12045 | ||||
12046 | TokenKind ltok; | |||
12047 | if (!tokenStream.getToken(<ok, TokenStream::SlashIsInvalid)) { | |||
12048 | return errorResult(); | |||
12049 | } | |||
12050 | ||||
12051 | 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" , 12052); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ltok != TokenKind::RightCurly" ") (" "caller should have handled TokenKind::RightCurly" ")" ); do { *((volatile int*)__null) = 12052; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
12052 | "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" , 12052); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ltok != TokenKind::RightCurly" ") (" "caller should have handled TokenKind::RightCurly" ")" ); do { *((volatile int*)__null) = 12052; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
12053 | ||||
12054 | // Accept `async` and/or `*`, indicating an async or generator method; | |||
12055 | // or `get` or `set` or `accessor`, indicating an accessor. | |||
12056 | bool isGenerator = false; | |||
12057 | bool isAsync = false; | |||
12058 | bool isGetter = false; | |||
12059 | bool isSetter = false; | |||
12060 | #ifdef ENABLE_DECORATORS | |||
12061 | bool hasAccessor = false; | |||
12062 | #endif | |||
12063 | ||||
12064 | if (ltok == TokenKind::Async) { | |||
12065 | // `async` is also a PropertyName by itself (it's a conditional keyword), | |||
12066 | // so peek at the next token to see if we're really looking at a method. | |||
12067 | TokenKind tt = TokenKind::Eof; | |||
12068 | if (!tokenStream.peekTokenSameLine(&tt)) { | |||
12069 | return errorResult(); | |||
12070 | } | |||
12071 | if (TokenKindCanStartPropertyName(tt) || tt == TokenKind::Mul) { | |||
12072 | isAsync = true; | |||
12073 | tokenStream.consumeKnownToken(tt); | |||
12074 | ltok = tt; | |||
12075 | } | |||
12076 | } | |||
12077 | ||||
12078 | if (ltok == TokenKind::Mul) { | |||
12079 | isGenerator = true; | |||
12080 | if (!tokenStream.getToken(<ok)) { | |||
12081 | return errorResult(); | |||
12082 | } | |||
12083 | } | |||
12084 | ||||
12085 | if (!isAsync && !isGenerator && | |||
12086 | (ltok == TokenKind::Get || ltok == TokenKind::Set)) { | |||
12087 | // We have parsed |get| or |set|. Look for an accessor property | |||
12088 | // name next. | |||
12089 | TokenKind tt; | |||
12090 | if (!tokenStream.peekToken(&tt)) { | |||
12091 | return errorResult(); | |||
12092 | } | |||
12093 | if (TokenKindCanStartPropertyName(tt)) { | |||
12094 | tokenStream.consumeKnownToken(tt); | |||
12095 | isGetter = (ltok == TokenKind::Get); | |||
12096 | isSetter = (ltok == TokenKind::Set); | |||
12097 | } | |||
12098 | } | |||
12099 | ||||
12100 | #ifdef ENABLE_DECORATORS | |||
12101 | if (!isGenerator && !isAsync && propertyNameContext == PropertyNameInClass && | |||
12102 | ltok == TokenKind::Accessor) { | |||
12103 | 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" , 12103); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!isGetter && !isSetter" ")"); do { *((volatile int*)__null) = 12103; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12104 | TokenKind tt; | |||
12105 | if (!tokenStream.peekTokenSameLine(&tt)) { | |||
12106 | return errorResult(); | |||
12107 | } | |||
12108 | ||||
12109 | // The target rule is `accessor [no LineTerminator here] | |||
12110 | // ClassElementName[?Yield, ?Await] Initializer[+In, ?Yield, ?Await]opt` | |||
12111 | if (TokenKindCanStartPropertyName(tt)) { | |||
12112 | tokenStream.consumeKnownToken(tt); | |||
12113 | hasAccessor = true; | |||
12114 | } | |||
12115 | } | |||
12116 | #endif | |||
12117 | ||||
12118 | Node propName; | |||
12119 | 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) | |||
12120 | 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); | |||
12121 | ||||
12122 | // Grab the next token following the property/method name. | |||
12123 | // (If this isn't a colon, we're going to either put it back or throw.) | |||
12124 | TokenKind tt; | |||
12125 | if (!tokenStream.getToken(&tt)) { | |||
12126 | return errorResult(); | |||
12127 | } | |||
12128 | ||||
12129 | if (tt == TokenKind::Colon) { | |||
12130 | if (isGenerator || isAsync || isGetter || isSetter | |||
12131 | #ifdef ENABLE_DECORATORS | |||
12132 | || hasAccessor | |||
12133 | #endif | |||
12134 | ) { | |||
12135 | error(JSMSG_BAD_PROP_ID); | |||
12136 | return errorResult(); | |||
12137 | } | |||
12138 | *propType = PropertyType::Normal; | |||
12139 | return propName; | |||
12140 | } | |||
12141 | ||||
12142 | if (propertyNameContext != PropertyNameInClass && | |||
12143 | TokenKindIsPossibleIdentifierName(ltok) && | |||
12144 | (tt == TokenKind::Comma || tt == TokenKind::RightCurly || | |||
12145 | tt == TokenKind::Assign)) { | |||
12146 | #ifdef ENABLE_DECORATORS | |||
12147 | 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" , 12147); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!hasAccessor" ")"); do { *((volatile int*)__null) = 12147; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12148 | #endif | |||
12149 | if (isGenerator || isAsync || isGetter || isSetter) { | |||
12150 | error(JSMSG_BAD_PROP_ID); | |||
12151 | return errorResult(); | |||
12152 | } | |||
12153 | ||||
12154 | anyChars.ungetToken(); | |||
12155 | *propType = tt == TokenKind::Assign ? PropertyType::CoverInitializedName | |||
12156 | : PropertyType::Shorthand; | |||
12157 | return propName; | |||
12158 | } | |||
12159 | ||||
12160 | if (tt == TokenKind::LeftParen) { | |||
12161 | anyChars.ungetToken(); | |||
12162 | ||||
12163 | #ifdef ENABLE_RECORD_TUPLE | |||
12164 | if (propertyNameContext == PropertyNameInRecord) { | |||
12165 | // Record & Tuple proposal, section 7.1.1: | |||
12166 | // RecordPropertyDefinition doesn't cover methods | |||
12167 | error(JSMSG_BAD_PROP_ID); | |||
12168 | return errorResult(); | |||
12169 | } | |||
12170 | #endif | |||
12171 | ||||
12172 | #ifdef ENABLE_DECORATORS | |||
12173 | if (hasAccessor) { | |||
12174 | error(JSMSG_BAD_PROP_ID); | |||
12175 | return errorResult(); | |||
12176 | } | |||
12177 | #endif | |||
12178 | ||||
12179 | if (isGenerator && isAsync) { | |||
12180 | *propType = PropertyType::AsyncGeneratorMethod; | |||
12181 | } else if (isGenerator) { | |||
12182 | *propType = PropertyType::GeneratorMethod; | |||
12183 | } else if (isAsync) { | |||
12184 | *propType = PropertyType::AsyncMethod; | |||
12185 | } else if (isGetter) { | |||
12186 | *propType = PropertyType::Getter; | |||
12187 | } else if (isSetter) { | |||
12188 | *propType = PropertyType::Setter; | |||
12189 | } else { | |||
12190 | *propType = PropertyType::Method; | |||
12191 | } | |||
12192 | return propName; | |||
12193 | } | |||
12194 | ||||
12195 | if (propertyNameContext == PropertyNameInClass) { | |||
12196 | if (isGenerator || isAsync || isGetter || isSetter) { | |||
12197 | error(JSMSG_BAD_PROP_ID); | |||
12198 | return errorResult(); | |||
12199 | } | |||
12200 | anyChars.ungetToken(); | |||
12201 | #ifdef ENABLE_DECORATORS | |||
12202 | if (!hasAccessor) { | |||
12203 | *propType = PropertyType::Field; | |||
12204 | } else { | |||
12205 | *propType = PropertyType::FieldWithAccessor; | |||
12206 | } | |||
12207 | #else | |||
12208 | *propType = PropertyType::Field; | |||
12209 | #endif | |||
12210 | return propName; | |||
12211 | } | |||
12212 | ||||
12213 | error(JSMSG_COLON_AFTER_ID); | |||
12214 | return errorResult(); | |||
12215 | } | |||
12216 | ||||
12217 | template <class ParseHandler, typename Unit> | |||
12218 | typename ParseHandler::UnaryNodeResult | |||
12219 | GeneralParser<ParseHandler, Unit>::computedPropertyName( | |||
12220 | YieldHandling yieldHandling, const Maybe<DeclarationKind>& maybeDecl, | |||
12221 | PropertyNameContext propertyNameContext, ListNodeType literal) { | |||
12222 | 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" , 12222); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftBracket)" ")"); do { *((volatile int*)__null) = 12222; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12223 | ||||
12224 | uint32_t begin = pos().begin; | |||
12225 | ||||
12226 | if (maybeDecl) { | |||
12227 | if (*maybeDecl == DeclarationKind::FormalParameter) { | |||
12228 | pc_->functionBox()->hasParameterExprs = true; | |||
12229 | } | |||
12230 | } else if (propertyNameContext == | |||
12231 | PropertyNameContext::PropertyNameInLiteral) { | |||
12232 | handler_.setListHasNonConstInitializer(literal); | |||
12233 | } | |||
12234 | ||||
12235 | Node assignNode; | |||
12236 | 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) | |||
12237 | 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); | |||
12238 | ||||
12239 | if (!mustMatchToken(TokenKind::RightBracket, JSMSG_COMP_PROP_UNTERM_EXPR)) { | |||
12240 | return errorResult(); | |||
12241 | } | |||
12242 | return handler_.newComputedName(assignNode, begin, pos().end); | |||
12243 | } | |||
12244 | ||||
12245 | template <class ParseHandler, typename Unit> | |||
12246 | typename ParseHandler::ListNodeResult | |||
12247 | GeneralParser<ParseHandler, Unit>::objectLiteral(YieldHandling yieldHandling, | |||
12248 | PossibleError* possibleError) { | |||
12249 | 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" , 12249); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftCurly)" ")"); do { *((volatile int*)__null) = 12249; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12250 | ||||
12251 | uint32_t openedPos = pos().begin; | |||
12252 | ||||
12253 | ListNodeType literal; | |||
12254 | 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); | |||
12255 | ||||
12256 | bool seenPrototypeMutation = false; | |||
12257 | bool seenCoverInitializedName = false; | |||
12258 | Maybe<DeclarationKind> declKind = Nothing(); | |||
12259 | TaggedParserAtomIndex propAtom; | |||
12260 | for (;;) { | |||
12261 | TokenKind tt; | |||
12262 | if (!tokenStream.peekToken(&tt)) { | |||
12263 | return errorResult(); | |||
12264 | } | |||
12265 | if (tt == TokenKind::RightCurly) { | |||
12266 | break; | |||
12267 | } | |||
12268 | ||||
12269 | if (tt == TokenKind::TripleDot) { | |||
12270 | tokenStream.consumeKnownToken(TokenKind::TripleDot); | |||
12271 | uint32_t begin = pos().begin; | |||
12272 | ||||
12273 | TokenPos innerPos; | |||
12274 | if (!tokenStream.peekTokenPos(&innerPos, TokenStream::SlashIsRegExp)) { | |||
12275 | return errorResult(); | |||
12276 | } | |||
12277 | ||||
12278 | PossibleError possibleErrorInner(*this); | |||
12279 | Node inner; | |||
12280 | 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) | |||
12281 | TripledotProhibited, &possibleErrorInner))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (inner) = mozTryVarTempResult_.unwrap(); } while (0); | |||
12282 | if (!checkDestructuringAssignmentTarget( | |||
12283 | inner, innerPos, &possibleErrorInner, possibleError, | |||
12284 | TargetBehavior::ForbidAssignmentPattern)) { | |||
12285 | return errorResult(); | |||
12286 | } | |||
12287 | if (!handler_.addSpreadProperty(literal, begin, inner)) { | |||
12288 | return errorResult(); | |||
12289 | } | |||
12290 | } else { | |||
12291 | TokenPos namePos = anyChars.nextToken().pos; | |||
12292 | ||||
12293 | PropertyType propType; | |||
12294 | Node propName; | |||
12295 | 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) | |||
12296 | 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) | |||
12297 | 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); | |||
12298 | ||||
12299 | if (propType == PropertyType::Normal) { | |||
12300 | TokenPos exprPos; | |||
12301 | if (!tokenStream.peekTokenPos(&exprPos, TokenStream::SlashIsRegExp)) { | |||
12302 | return errorResult(); | |||
12303 | } | |||
12304 | ||||
12305 | PossibleError possibleErrorInner(*this); | |||
12306 | Node propExpr; | |||
12307 | 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) | |||
12308 | 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) | |||
12309 | &possibleErrorInner))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited, &possibleErrorInner)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (propExpr) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
12310 | ||||
12311 | if (!checkDestructuringAssignmentElement( | |||
12312 | propExpr, exprPos, &possibleErrorInner, possibleError)) { | |||
12313 | return errorResult(); | |||
12314 | } | |||
12315 | ||||
12316 | if (propAtom == TaggedParserAtomIndex::WellKnown::proto_()) { | |||
12317 | if (seenPrototypeMutation) { | |||
12318 | // Directly report the error when we're definitely not | |||
12319 | // in a destructuring context. | |||
12320 | if (!possibleError) { | |||
12321 | errorAt(namePos.begin, JSMSG_DUPLICATE_PROTO_PROPERTY); | |||
12322 | return errorResult(); | |||
12323 | } | |||
12324 | ||||
12325 | // Otherwise delay error reporting until we've | |||
12326 | // determined whether or not we're destructuring. | |||
12327 | possibleError->setPendingExpressionErrorAt( | |||
12328 | namePos, JSMSG_DUPLICATE_PROTO_PROPERTY); | |||
12329 | } | |||
12330 | seenPrototypeMutation = true; | |||
12331 | ||||
12332 | // This occurs *only* if we observe PropertyType::Normal! | |||
12333 | // Only |__proto__: v| mutates [[Prototype]]. Getters, | |||
12334 | // setters, method/generator definitions, computed | |||
12335 | // property name versions of all of these, and shorthands | |||
12336 | // do not. | |||
12337 | if (!handler_.addPrototypeMutation(literal, namePos.begin, | |||
12338 | propExpr)) { | |||
12339 | return errorResult(); | |||
12340 | } | |||
12341 | } else { | |||
12342 | BinaryNodeType propDef; | |||
12343 | 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) | |||
12344 | 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); | |||
12345 | ||||
12346 | handler_.addPropertyDefinition(literal, propDef); | |||
12347 | } | |||
12348 | } else if (propType == PropertyType::Shorthand) { | |||
12349 | /* | |||
12350 | * Support, e.g., |({x, y} = o)| as destructuring shorthand | |||
12351 | * for |({x: x, y: y} = o)|, and |var o = {x, y}| as | |||
12352 | * initializer shorthand for |var o = {x: x, y: y}|. | |||
12353 | */ | |||
12354 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
12355 | if (!name) { | |||
12356 | return errorResult(); | |||
12357 | } | |||
12358 | ||||
12359 | NameNodeType nameExpr; | |||
12360 | 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); | |||
12361 | ||||
12362 | if (possibleError) { | |||
12363 | checkDestructuringAssignmentName(nameExpr, namePos, possibleError); | |||
12364 | } | |||
12365 | ||||
12366 | if (!handler_.addShorthand(literal, handler_.asNameNode(propName), | |||
12367 | nameExpr)) { | |||
12368 | return errorResult(); | |||
12369 | } | |||
12370 | } else if (propType == PropertyType::CoverInitializedName) { | |||
12371 | /* | |||
12372 | * Support, e.g., |({x=1, y=2} = o)| as destructuring | |||
12373 | * shorthand with default values, as per ES6 12.14.5 | |||
12374 | */ | |||
12375 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
12376 | if (!name) { | |||
12377 | return errorResult(); | |||
12378 | } | |||
12379 | ||||
12380 | Node lhs; | |||
12381 | 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); | |||
12382 | ||||
12383 | tokenStream.consumeKnownToken(TokenKind::Assign); | |||
12384 | ||||
12385 | if (!seenCoverInitializedName) { | |||
12386 | // "shorthand default" or "CoverInitializedName" syntax is | |||
12387 | // only valid in the case of destructuring. | |||
12388 | seenCoverInitializedName = true; | |||
12389 | ||||
12390 | if (!possibleError) { | |||
12391 | // Destructuring defaults are definitely not allowed | |||
12392 | // in this object literal, because of something the | |||
12393 | // caller knows about the preceding code. For example, | |||
12394 | // maybe the preceding token is an operator: | |||
12395 | // |x + {y=z}|. | |||
12396 | error(JSMSG_COLON_AFTER_ID); | |||
12397 | return errorResult(); | |||
12398 | } | |||
12399 | ||||
12400 | // Here we set a pending error so that later in the parse, | |||
12401 | // once we've determined whether or not we're | |||
12402 | // destructuring, the error can be reported or ignored | |||
12403 | // appropriately. | |||
12404 | possibleError->setPendingExpressionErrorAt(pos(), | |||
12405 | JSMSG_COLON_AFTER_ID); | |||
12406 | } | |||
12407 | ||||
12408 | if (const char* chars = nameIsArgumentsOrEval(lhs)) { | |||
12409 | // |chars| is "arguments" or "eval" here. | |||
12410 | if (!strictModeErrorAt(namePos.begin, JSMSG_BAD_STRICT_ASSIGN, | |||
12411 | chars)) { | |||
12412 | return errorResult(); | |||
12413 | } | |||
12414 | } | |||
12415 | ||||
12416 | if (handler_.isArgumentsLength(lhs)) { | |||
12417 | pc_->sc()->setIneligibleForArgumentsLength(); | |||
12418 | } | |||
12419 | ||||
12420 | Node rhs; | |||
12421 | 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) | |||
12422 | 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); | |||
12423 | ||||
12424 | BinaryNodeType propExpr; | |||
12425 | 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) | |||
12426 | 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); | |||
12427 | ||||
12428 | if (!handler_.addPropertyDefinition(literal, propName, propExpr)) { | |||
12429 | return errorResult(); | |||
12430 | } | |||
12431 | } else { | |||
12432 | TaggedParserAtomIndex funName; | |||
12433 | bool hasStaticName = | |||
12434 | !anyChars.isCurrentTokenType(TokenKind::RightBracket) && propAtom; | |||
12435 | if (hasStaticName) { | |||
12436 | funName = propAtom; | |||
12437 | ||||
12438 | if (propType == PropertyType::Getter || | |||
12439 | propType == PropertyType::Setter) { | |||
12440 | funName = prefixAccessorName(propType, propAtom); | |||
12441 | if (!funName) { | |||
12442 | return errorResult(); | |||
12443 | } | |||
12444 | } | |||
12445 | } | |||
12446 | ||||
12447 | FunctionNodeType funNode; | |||
12448 | 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) | |||
12449 | 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); | |||
12450 | ||||
12451 | AccessorType atype = ToAccessorType(propType); | |||
12452 | if (!handler_.addObjectMethodDefinition(literal, propName, funNode, | |||
12453 | atype)) { | |||
12454 | return errorResult(); | |||
12455 | } | |||
12456 | ||||
12457 | if (possibleError) { | |||
12458 | possibleError->setPendingDestructuringErrorAt( | |||
12459 | namePos, JSMSG_BAD_DESTRUCT_TARGET); | |||
12460 | } | |||
12461 | } | |||
12462 | } | |||
12463 | ||||
12464 | bool matched; | |||
12465 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
12466 | TokenStream::SlashIsInvalid)) { | |||
12467 | return errorResult(); | |||
12468 | } | |||
12469 | if (!matched) { | |||
12470 | break; | |||
12471 | } | |||
12472 | if (tt == TokenKind::TripleDot && possibleError) { | |||
12473 | possibleError->setPendingDestructuringErrorAt(pos(), | |||
12474 | JSMSG_REST_WITH_COMMA); | |||
12475 | } | |||
12476 | } | |||
12477 | ||||
12478 | if (!mustMatchToken( | |||
12479 | TokenKind::RightCurly, [this, openedPos](TokenKind actual) { | |||
12480 | this->reportMissingClosing(JSMSG_CURLY_AFTER_LIST, | |||
12481 | JSMSG_CURLY_OPENED, openedPos); | |||
12482 | })) { | |||
12483 | return errorResult(); | |||
12484 | } | |||
12485 | ||||
12486 | handler_.setEndPosition(literal, pos().end); | |||
12487 | return literal; | |||
12488 | } | |||
12489 | ||||
12490 | #ifdef ENABLE_RECORD_TUPLE | |||
12491 | template <class ParseHandler, typename Unit> | |||
12492 | typename ParseHandler::ListNodeResult | |||
12493 | GeneralParser<ParseHandler, Unit>::recordLiteral(YieldHandling yieldHandling) { | |||
12494 | 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" , 12494); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::HashCurly)" ")"); do { *((volatile int*)__null) = 12494; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12495 | ||||
12496 | uint32_t openedPos = pos().begin; | |||
12497 | ||||
12498 | ListNodeType literal; | |||
12499 | 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); | |||
12500 | ||||
12501 | TaggedParserAtomIndex propAtom; | |||
12502 | for (;;) { | |||
12503 | TokenKind tt; | |||
12504 | if (!tokenStream.peekToken(&tt)) { | |||
12505 | return errorResult(); | |||
12506 | } | |||
12507 | if (tt == TokenKind::RightCurly) { | |||
12508 | break; | |||
12509 | } | |||
12510 | ||||
12511 | if (tt == TokenKind::TripleDot) { | |||
12512 | tokenStream.consumeKnownToken(TokenKind::TripleDot); | |||
12513 | uint32_t begin = pos().begin; | |||
12514 | ||||
12515 | TokenPos innerPos; | |||
12516 | if (!tokenStream.peekTokenPos(&innerPos, TokenStream::SlashIsRegExp)) { | |||
12517 | return errorResult(); | |||
12518 | } | |||
12519 | ||||
12520 | Node inner; | |||
12521 | 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) | |||
12522 | 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); | |||
12523 | ||||
12524 | if (!handler_.addSpreadProperty(literal, begin, inner)) { | |||
12525 | return errorResult(); | |||
12526 | } | |||
12527 | } else { | |||
12528 | TokenPos namePos = anyChars.nextToken().pos; | |||
12529 | ||||
12530 | PropertyType propType; | |||
12531 | Node propName; | |||
12532 | 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) | |||
12533 | 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) | |||
12534 | /* 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) | |||
12535 | &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); | |||
12536 | ||||
12537 | if (propType == PropertyType::Normal) { | |||
12538 | TokenPos exprPos; | |||
12539 | if (!tokenStream.peekTokenPos(&exprPos, TokenStream::SlashIsRegExp)) { | |||
12540 | return errorResult(); | |||
12541 | } | |||
12542 | ||||
12543 | Node propExpr; | |||
12544 | 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) | |||
12545 | 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); | |||
12546 | ||||
12547 | if (propAtom == TaggedParserAtomIndex::WellKnown::proto_()) { | |||
12548 | errorAt(namePos.begin, JSMSG_RECORD_NO_PROTO); | |||
12549 | return errorResult(); | |||
12550 | } | |||
12551 | ||||
12552 | BinaryNodeType propDef; | |||
12553 | 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) | |||
12554 | 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); | |||
12555 | ||||
12556 | handler_.addPropertyDefinition(literal, propDef); | |||
12557 | } else if (propType == PropertyType::Shorthand) { | |||
12558 | /* | |||
12559 | * Support |var o = #{x, y}| as initializer shorthand for | |||
12560 | * |var o = #{x: x, y: y}|. | |||
12561 | */ | |||
12562 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
12563 | if (!name) { | |||
12564 | return errorResult(); | |||
12565 | } | |||
12566 | ||||
12567 | NameNodeType nameExpr; | |||
12568 | 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); | |||
12569 | ||||
12570 | if (!handler_.addShorthand(literal, handler_.asNameNode(propName), | |||
12571 | nameExpr)) { | |||
12572 | return errorResult(); | |||
12573 | } | |||
12574 | } else { | |||
12575 | error(JSMSG_BAD_PROP_ID); | |||
12576 | return errorResult(); | |||
12577 | } | |||
12578 | } | |||
12579 | ||||
12580 | bool matched; | |||
12581 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
12582 | TokenStream::SlashIsInvalid)) { | |||
12583 | return errorResult(); | |||
12584 | } | |||
12585 | if (!matched) { | |||
12586 | break; | |||
12587 | } | |||
12588 | } | |||
12589 | ||||
12590 | if (!mustMatchToken( | |||
12591 | TokenKind::RightCurly, [this, openedPos](TokenKind actual) { | |||
12592 | this->reportMissingClosing(JSMSG_CURLY_AFTER_LIST, | |||
12593 | JSMSG_CURLY_OPENED, openedPos); | |||
12594 | })) { | |||
12595 | return errorResult(); | |||
12596 | } | |||
12597 | ||||
12598 | handler_.setEndPosition(literal, pos().end); | |||
12599 | return literal; | |||
12600 | } | |||
12601 | ||||
12602 | template <class ParseHandler, typename Unit> | |||
12603 | typename ParseHandler::ListNodeResult | |||
12604 | GeneralParser<ParseHandler, Unit>::tupleLiteral(YieldHandling yieldHandling) { | |||
12605 | 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" , 12605); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::HashBracket)" ")"); do { *((volatile int*)__null) = 12605; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12606 | ||||
12607 | uint32_t begin = pos().begin; | |||
12608 | ListNodeType literal; | |||
12609 | 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); | |||
12610 | ||||
12611 | for (uint32_t index = 0;; index++) { | |||
12612 | if (index >= NativeObject::MAX_DENSE_ELEMENTS_COUNT) { | |||
12613 | error(JSMSG_ARRAY_INIT_TOO_BIG); | |||
12614 | return errorResult(); | |||
12615 | } | |||
12616 | ||||
12617 | TokenKind tt; | |||
12618 | if (!tokenStream.peekToken(&tt, TokenStream::SlashIsRegExp)) { | |||
12619 | return errorResult(); | |||
12620 | } | |||
12621 | if (tt == TokenKind::RightBracket) { | |||
12622 | break; | |||
12623 | } | |||
12624 | ||||
12625 | if (tt == TokenKind::TripleDot) { | |||
12626 | tokenStream.consumeKnownToken(TokenKind::TripleDot, | |||
12627 | TokenStream::SlashIsRegExp); | |||
12628 | uint32_t begin = pos().begin; | |||
12629 | ||||
12630 | TokenPos innerPos; | |||
12631 | if (!tokenStream.peekTokenPos(&innerPos, TokenStream::SlashIsRegExp)) { | |||
12632 | return errorResult(); | |||
12633 | } | |||
12634 | ||||
12635 | Node inner; | |||
12636 | 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) | |||
12637 | 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); | |||
12638 | ||||
12639 | if (!handler_.addSpreadElement(literal, begin, inner)) { | |||
12640 | return errorResult(); | |||
12641 | } | |||
12642 | } else { | |||
12643 | TokenPos elementPos; | |||
12644 | if (!tokenStream.peekTokenPos(&elementPos, TokenStream::SlashIsRegExp)) { | |||
12645 | return errorResult(); | |||
12646 | } | |||
12647 | ||||
12648 | Node element; | |||
12649 | 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) | |||
12650 | 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); | |||
12651 | handler_.addArrayElement(literal, element); | |||
12652 | } | |||
12653 | ||||
12654 | bool matched; | |||
12655 | if (!tokenStream.matchToken(&matched, TokenKind::Comma, | |||
12656 | TokenStream::SlashIsRegExp)) { | |||
12657 | return errorResult(); | |||
12658 | } | |||
12659 | if (!matched) { | |||
12660 | break; | |||
12661 | } | |||
12662 | } | |||
12663 | ||||
12664 | if (!mustMatchToken(TokenKind::RightBracket, [this, begin](TokenKind actual) { | |||
12665 | this->reportMissingClosing(JSMSG_BRACKET_AFTER_LIST, | |||
12666 | JSMSG_BRACKET_OPENED, begin); | |||
12667 | })) { | |||
12668 | return errorResult(); | |||
12669 | } | |||
12670 | ||||
12671 | handler_.setEndPosition(literal, pos().end); | |||
12672 | return literal; | |||
12673 | } | |||
12674 | #endif | |||
12675 | ||||
12676 | template <class ParseHandler, typename Unit> | |||
12677 | typename ParseHandler::FunctionNodeResult | |||
12678 | GeneralParser<ParseHandler, Unit>::methodDefinition( | |||
12679 | uint32_t toStringStart, PropertyType propType, | |||
12680 | TaggedParserAtomIndex funName) { | |||
12681 | FunctionSyntaxKind syntaxKind; | |||
12682 | switch (propType) { | |||
12683 | case PropertyType::Getter: | |||
12684 | syntaxKind = FunctionSyntaxKind::Getter; | |||
12685 | break; | |||
12686 | ||||
12687 | case PropertyType::Setter: | |||
12688 | syntaxKind = FunctionSyntaxKind::Setter; | |||
12689 | break; | |||
12690 | ||||
12691 | case PropertyType::Method: | |||
12692 | case PropertyType::GeneratorMethod: | |||
12693 | case PropertyType::AsyncMethod: | |||
12694 | case PropertyType::AsyncGeneratorMethod: | |||
12695 | syntaxKind = FunctionSyntaxKind::Method; | |||
12696 | break; | |||
12697 | ||||
12698 | case PropertyType::Constructor: | |||
12699 | syntaxKind = FunctionSyntaxKind::ClassConstructor; | |||
12700 | break; | |||
12701 | ||||
12702 | case PropertyType::DerivedConstructor: | |||
12703 | syntaxKind = FunctionSyntaxKind::DerivedClassConstructor; | |||
12704 | break; | |||
12705 | ||||
12706 | default: | |||
12707 | 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" , 12707); AnnotateMozCrashReason("MOZ_CRASH(" "unexpected property type" ")"); do { *((volatile int*)__null) = 12707; __attribute__(( nomerge)) ::abort(); } while (false); } while (false); | |||
12708 | } | |||
12709 | ||||
12710 | GeneratorKind generatorKind = (propType == PropertyType::GeneratorMethod || | |||
12711 | propType == PropertyType::AsyncGeneratorMethod) | |||
12712 | ? GeneratorKind::Generator | |||
12713 | : GeneratorKind::NotGenerator; | |||
12714 | ||||
12715 | FunctionAsyncKind asyncKind = (propType == PropertyType::AsyncMethod || | |||
12716 | propType == PropertyType::AsyncGeneratorMethod) | |||
12717 | ? FunctionAsyncKind::AsyncFunction | |||
12718 | : FunctionAsyncKind::SyncFunction; | |||
12719 | ||||
12720 | YieldHandling yieldHandling = GetYieldHandling(generatorKind); | |||
12721 | ||||
12722 | FunctionNodeType funNode; | |||
12723 | 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); | |||
12724 | ||||
12725 | return functionDefinition(funNode, toStringStart, InAllowed, yieldHandling, | |||
12726 | funName, syntaxKind, generatorKind, asyncKind); | |||
12727 | } | |||
12728 | ||||
12729 | template <class ParseHandler, typename Unit> | |||
12730 | bool GeneralParser<ParseHandler, Unit>::tryNewTarget( | |||
12731 | NewTargetNodeType* newTarget) { | |||
12732 | 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" , 12732); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::New)" ")"); do { *((volatile int*)__null) = 12732; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12733 | ||||
12734 | *newTarget = null(); | |||
12735 | ||||
12736 | NullaryNodeType newHolder; | |||
12737 | 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); | |||
12738 | ||||
12739 | uint32_t begin = pos().begin; | |||
12740 | ||||
12741 | // |new| expects to look for an operand, so we will honor that. | |||
12742 | TokenKind next; | |||
12743 | if (!tokenStream.getToken(&next, TokenStream::SlashIsRegExp)) { | |||
12744 | return false; | |||
12745 | } | |||
12746 | ||||
12747 | // Don't unget the token, since lookahead cannot handle someone calling | |||
12748 | // getToken() with a different modifier. Callers should inspect | |||
12749 | // currentToken(). | |||
12750 | if (next != TokenKind::Dot) { | |||
12751 | return true; | |||
12752 | } | |||
12753 | ||||
12754 | if (!tokenStream.getToken(&next)) { | |||
12755 | return false; | |||
12756 | } | |||
12757 | if (next != TokenKind::Target) { | |||
12758 | error(JSMSG_UNEXPECTED_TOKEN, "target", TokenKindToDesc(next)); | |||
12759 | return false; | |||
12760 | } | |||
12761 | ||||
12762 | if (!pc_->sc()->allowNewTarget()) { | |||
12763 | errorAt(begin, JSMSG_BAD_NEWTARGET); | |||
12764 | return false; | |||
12765 | } | |||
12766 | ||||
12767 | NullaryNodeType targetHolder; | |||
12768 | 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); | |||
12769 | ||||
12770 | NameNodeType newTargetName; | |||
12771 | 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); | |||
12772 | ||||
12773 | 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) | |||
12774 | *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) | |||
12775 | false)do { auto parserTryVarTempResult_ = (handler_.newNewTarget(newHolder , targetHolder, newTargetName)); if ((__builtin_expect(!!(parserTryVarTempResult_ .isErr()), 0))) { return (false); } (*newTarget) = parserTryVarTempResult_ .unwrap(); } while (0); | |||
12776 | ||||
12777 | return true; | |||
12778 | } | |||
12779 | ||||
12780 | template <class ParseHandler, typename Unit> | |||
12781 | typename ParseHandler::BinaryNodeResult | |||
12782 | GeneralParser<ParseHandler, Unit>::importExpr(YieldHandling yieldHandling, | |||
12783 | bool allowCallSyntax) { | |||
12784 | 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" , 12784); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::Import)" ")"); do { *((volatile int*)__null) = 12784; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12785 | ||||
12786 | NullaryNodeType importHolder; | |||
12787 | 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); | |||
12788 | ||||
12789 | TokenKind next; | |||
12790 | if (!tokenStream.getToken(&next)) { | |||
12791 | return errorResult(); | |||
12792 | } | |||
12793 | ||||
12794 | if (next == TokenKind::Dot) { | |||
12795 | if (!tokenStream.getToken(&next)) { | |||
12796 | return errorResult(); | |||
12797 | } | |||
12798 | if (next != TokenKind::Meta) { | |||
12799 | error(JSMSG_UNEXPECTED_TOKEN, "meta", TokenKindToDesc(next)); | |||
12800 | return errorResult(); | |||
12801 | } | |||
12802 | ||||
12803 | if (parseGoal() != ParseGoal::Module) { | |||
12804 | errorAt(pos().begin, JSMSG_IMPORT_META_OUTSIDE_MODULE); | |||
12805 | return errorResult(); | |||
12806 | } | |||
12807 | ||||
12808 | NullaryNodeType metaHolder; | |||
12809 | 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); | |||
12810 | ||||
12811 | return handler_.newImportMeta(importHolder, metaHolder); | |||
12812 | } | |||
12813 | ||||
12814 | if (next == TokenKind::LeftParen && allowCallSyntax) { | |||
12815 | Node arg; | |||
12816 | 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); | |||
12817 | ||||
12818 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
12819 | return errorResult(); | |||
12820 | } | |||
12821 | ||||
12822 | Node optionalArg; | |||
12823 | if (options().importAttributes()) { | |||
12824 | if (next == TokenKind::Comma) { | |||
12825 | tokenStream.consumeKnownToken(TokenKind::Comma, | |||
12826 | TokenStream::SlashIsRegExp); | |||
12827 | ||||
12828 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
12829 | return errorResult(); | |||
12830 | } | |||
12831 | ||||
12832 | if (next != TokenKind::RightParen) { | |||
12833 | 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) | |||
12834 | TripledotProhibited))do { auto mozTryVarTempResult_ = (assignExpr(InAllowed, yieldHandling , TripledotProhibited)); if ((__builtin_expect(!!(mozTryVarTempResult_ .isErr()), 0))) { return mozTryVarTempResult_.propagateErr(); } (optionalArg) = mozTryVarTempResult_.unwrap(); } while (0); | |||
12835 | ||||
12836 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
12837 | return errorResult(); | |||
12838 | } | |||
12839 | ||||
12840 | if (next == TokenKind::Comma) { | |||
12841 | tokenStream.consumeKnownToken(TokenKind::Comma, | |||
12842 | TokenStream::SlashIsRegExp); | |||
12843 | } | |||
12844 | } else { | |||
12845 | 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) | |||
12846 | 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); | |||
12847 | } | |||
12848 | } else { | |||
12849 | 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) | |||
12850 | 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); | |||
12851 | } | |||
12852 | } else { | |||
12853 | 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) | |||
12854 | 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); | |||
12855 | } | |||
12856 | ||||
12857 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_AFTER_ARGS)) { | |||
12858 | return errorResult(); | |||
12859 | } | |||
12860 | ||||
12861 | Node spec; | |||
12862 | 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); | |||
12863 | ||||
12864 | return handler_.newCallImport(importHolder, spec); | |||
12865 | } | |||
12866 | ||||
12867 | error(JSMSG_UNEXPECTED_TOKEN_NO_EXPECT, TokenKindToDesc(next)); | |||
12868 | return errorResult(); | |||
12869 | } | |||
12870 | ||||
12871 | template <class ParseHandler, typename Unit> | |||
12872 | typename ParseHandler::NodeResult | |||
12873 | GeneralParser<ParseHandler, Unit>::primaryExpr( | |||
12874 | YieldHandling yieldHandling, TripledotHandling tripledotHandling, | |||
12875 | TokenKind tt, PossibleError* possibleError, InvokedPrediction invoked) { | |||
12876 | 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" , 12876); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(tt)" ")"); do { *((volatile int*)__null) = 12876; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
12877 | AutoCheckRecursionLimit recursion(this->fc_); | |||
12878 | if (!recursion.check(this->fc_)) { | |||
12879 | return errorResult(); | |||
12880 | } | |||
12881 | ||||
12882 | switch (tt) { | |||
12883 | case TokenKind::Function: | |||
12884 | return functionExpr(pos().begin, invoked, | |||
12885 | FunctionAsyncKind::SyncFunction); | |||
12886 | ||||
12887 | case TokenKind::Class: | |||
12888 | return classDefinition(yieldHandling, ClassExpression, NameRequired); | |||
12889 | ||||
12890 | case TokenKind::LeftBracket: | |||
12891 | return arrayInitializer(yieldHandling, possibleError); | |||
12892 | ||||
12893 | case TokenKind::LeftCurly: | |||
12894 | return objectLiteral(yieldHandling, possibleError); | |||
12895 | ||||
12896 | #ifdef ENABLE_RECORD_TUPLE | |||
12897 | case TokenKind::HashCurly: | |||
12898 | return recordLiteral(yieldHandling); | |||
12899 | ||||
12900 | case TokenKind::HashBracket: | |||
12901 | return tupleLiteral(yieldHandling); | |||
12902 | #endif | |||
12903 | ||||
12904 | #ifdef ENABLE_DECORATORS | |||
12905 | case TokenKind::At: | |||
12906 | return classDefinition(yieldHandling, ClassExpression, NameRequired); | |||
12907 | #endif | |||
12908 | ||||
12909 | case TokenKind::LeftParen: { | |||
12910 | TokenKind next; | |||
12911 | if (!tokenStream.peekToken(&next, TokenStream::SlashIsRegExp)) { | |||
12912 | return errorResult(); | |||
12913 | } | |||
12914 | ||||
12915 | if (next == TokenKind::RightParen) { | |||
12916 | // Not valid expression syntax, but this is valid in an arrow function | |||
12917 | // with no params: `() => body`. | |||
12918 | tokenStream.consumeKnownToken(TokenKind::RightParen, | |||
12919 | TokenStream::SlashIsRegExp); | |||
12920 | ||||
12921 | if (!tokenStream.peekToken(&next)) { | |||
12922 | return errorResult(); | |||
12923 | } | |||
12924 | if (next != TokenKind::Arrow) { | |||
12925 | error(JSMSG_UNEXPECTED_TOKEN, "expression", | |||
12926 | TokenKindToDesc(TokenKind::RightParen)); | |||
12927 | return errorResult(); | |||
12928 | } | |||
12929 | ||||
12930 | // Now just return something that will allow parsing to continue. | |||
12931 | // It doesn't matter what; when we reach the =>, we will rewind and | |||
12932 | // reparse the whole arrow function. See Parser::assignExpr. | |||
12933 | return handler_.newNullLiteral(pos()); | |||
12934 | } | |||
12935 | ||||
12936 | // Pass |possibleError| to support destructuring in arrow parameters. | |||
12937 | Node expr; | |||
12938 | 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) | |||
12939 | possibleError))do { auto mozTryVarTempResult_ = (exprInParens(InAllowed, yieldHandling , TripledotAllowed, possibleError)); if ((__builtin_expect(!! (mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (expr) = mozTryVarTempResult_.unwrap(); } while (0); | |||
12940 | if (!mustMatchToken(TokenKind::RightParen, JSMSG_PAREN_IN_PAREN)) { | |||
12941 | return errorResult(); | |||
12942 | } | |||
12943 | return handler_.parenthesize(expr); | |||
12944 | } | |||
12945 | ||||
12946 | case TokenKind::TemplateHead: | |||
12947 | return templateLiteral(yieldHandling); | |||
12948 | ||||
12949 | case TokenKind::NoSubsTemplate: | |||
12950 | return noSubstitutionUntaggedTemplate(); | |||
12951 | ||||
12952 | case TokenKind::String: | |||
12953 | return stringLiteral(); | |||
12954 | ||||
12955 | default: { | |||
12956 | if (!TokenKindIsPossibleIdentifier(tt)) { | |||
12957 | error(JSMSG_UNEXPECTED_TOKEN, "expression", TokenKindToDesc(tt)); | |||
12958 | return errorResult(); | |||
12959 | } | |||
12960 | ||||
12961 | if (tt == TokenKind::Async) { | |||
12962 | TokenKind nextSameLine = TokenKind::Eof; | |||
12963 | if (!tokenStream.peekTokenSameLine(&nextSameLine)) { | |||
12964 | return errorResult(); | |||
12965 | } | |||
12966 | ||||
12967 | if (nextSameLine == TokenKind::Function) { | |||
12968 | uint32_t toStringStart = pos().begin; | |||
12969 | tokenStream.consumeKnownToken(TokenKind::Function); | |||
12970 | return functionExpr(toStringStart, PredictUninvoked, | |||
12971 | FunctionAsyncKind::AsyncFunction); | |||
12972 | } | |||
12973 | } | |||
12974 | ||||
12975 | TaggedParserAtomIndex name = identifierReference(yieldHandling); | |||
12976 | if (!name) { | |||
12977 | return errorResult(); | |||
12978 | } | |||
12979 | ||||
12980 | return identifierReference(name); | |||
12981 | } | |||
12982 | ||||
12983 | case TokenKind::RegExp: | |||
12984 | return newRegExp(); | |||
12985 | ||||
12986 | case TokenKind::Number: | |||
12987 | return newNumber(anyChars.currentToken()); | |||
12988 | ||||
12989 | case TokenKind::BigInt: | |||
12990 | return newBigInt(); | |||
12991 | ||||
12992 | case TokenKind::True: | |||
12993 | return handler_.newBooleanLiteral(true, pos()); | |||
12994 | case TokenKind::False: | |||
12995 | return handler_.newBooleanLiteral(false, pos()); | |||
12996 | case TokenKind::This: { | |||
12997 | NameNodeType thisName = null(); | |||
12998 | if (pc_->sc()->hasFunctionThisBinding()) { | |||
12999 | MOZ_TRY_VAR(thisName, newThisName())do { auto mozTryVarTempResult_ = (newThisName()); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (thisName) = mozTryVarTempResult_.unwrap() ; } while (0); | |||
13000 | } | |||
13001 | return handler_.newThisLiteral(pos(), thisName); | |||
13002 | } | |||
13003 | case TokenKind::Null: | |||
13004 | return handler_.newNullLiteral(pos()); | |||
13005 | ||||
13006 | case TokenKind::TripleDot: { | |||
13007 | // This isn't valid expression syntax, but it's valid in an arrow | |||
13008 | // function as a trailing rest param: `(a, b, ...rest) => body`. Check | |||
13009 | // if it's directly under | |||
13010 | // CoverParenthesizedExpressionAndArrowParameterList, and check for a | |||
13011 | // name, closing parenthesis, and arrow, and allow it only if all are | |||
13012 | // present. | |||
13013 | if (tripledotHandling != TripledotAllowed) { | |||
13014 | error(JSMSG_UNEXPECTED_TOKEN, "expression", TokenKindToDesc(tt)); | |||
13015 | return errorResult(); | |||
13016 | } | |||
13017 | ||||
13018 | TokenKind next; | |||
13019 | if (!tokenStream.getToken(&next)) { | |||
13020 | return errorResult(); | |||
13021 | } | |||
13022 | ||||
13023 | if (next == TokenKind::LeftBracket || next == TokenKind::LeftCurly) { | |||
13024 | // Validate, but don't store the pattern right now. The whole arrow | |||
13025 | // function is reparsed in functionFormalParametersAndBody(). | |||
13026 | 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) | |||
13027 | yieldHandling, next))do { auto mozTryTempResult_ = ::mozilla::ToResult(destructuringDeclaration (DeclarationKind::CoverArrowParameter, yieldHandling, next)); if ((__builtin_expect(!!(mozTryTempResult_.isErr()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0); | |||
13028 | } else { | |||
13029 | // This doesn't check that the provided name is allowed, e.g. if | |||
13030 | // the enclosing code is strict mode code, any of "let", "yield", | |||
13031 | // or "arguments" should be prohibited. Argument-parsing code | |||
13032 | // handles that. | |||
13033 | if (!TokenKindIsPossibleIdentifier(next)) { | |||
13034 | error(JSMSG_UNEXPECTED_TOKEN, "rest argument name", | |||
13035 | TokenKindToDesc(next)); | |||
13036 | return errorResult(); | |||
13037 | } | |||
13038 | } | |||
13039 | ||||
13040 | if (!tokenStream.getToken(&next)) { | |||
13041 | return errorResult(); | |||
13042 | } | |||
13043 | if (next != TokenKind::RightParen) { | |||
13044 | error(JSMSG_UNEXPECTED_TOKEN, "closing parenthesis", | |||
13045 | TokenKindToDesc(next)); | |||
13046 | return errorResult(); | |||
13047 | } | |||
13048 | ||||
13049 | if (!tokenStream.peekToken(&next)) { | |||
13050 | return errorResult(); | |||
13051 | } | |||
13052 | if (next != TokenKind::Arrow) { | |||
13053 | // Advance the scanner for proper error location reporting. | |||
13054 | tokenStream.consumeKnownToken(next); | |||
13055 | error(JSMSG_UNEXPECTED_TOKEN, "'=>' after argument list", | |||
13056 | TokenKindToDesc(next)); | |||
13057 | return errorResult(); | |||
13058 | } | |||
13059 | ||||
13060 | anyChars.ungetToken(); // put back right paren | |||
13061 | ||||
13062 | // Return an arbitrary expression node. See case TokenKind::RightParen | |||
13063 | // above. | |||
13064 | return handler_.newNullLiteral(pos()); | |||
13065 | } | |||
13066 | } | |||
13067 | } | |||
13068 | ||||
13069 | template <class ParseHandler, typename Unit> | |||
13070 | typename ParseHandler::NodeResult | |||
13071 | GeneralParser<ParseHandler, Unit>::exprInParens( | |||
13072 | InHandling inHandling, YieldHandling yieldHandling, | |||
13073 | TripledotHandling tripledotHandling, | |||
13074 | PossibleError* possibleError /* = nullptr */) { | |||
13075 | 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" , 13075); AnnotateMozCrashReason("MOZ_ASSERT" "(" "anyChars.isCurrentTokenType(TokenKind::LeftParen)" ")"); do { *((volatile int*)__null) = 13075; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); | |||
13076 | return expr(inHandling, yieldHandling, tripledotHandling, possibleError, | |||
13077 | PredictInvoked); | |||
13078 | } | |||
13079 | ||||
13080 | template class PerHandlerParser<FullParseHandler>; | |||
13081 | template class PerHandlerParser<SyntaxParseHandler>; | |||
13082 | template class GeneralParser<FullParseHandler, Utf8Unit>; | |||
13083 | template class GeneralParser<SyntaxParseHandler, Utf8Unit>; | |||
13084 | template class GeneralParser<FullParseHandler, char16_t>; | |||
13085 | template class GeneralParser<SyntaxParseHandler, char16_t>; | |||
13086 | template class Parser<FullParseHandler, Utf8Unit>; | |||
13087 | template class Parser<SyntaxParseHandler, Utf8Unit>; | |||
13088 | template class Parser<FullParseHandler, char16_t>; | |||
13089 | template class Parser<SyntaxParseHandler, char16_t>; | |||
13090 | ||||
13091 | } // 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 |