183173 2018-02-27 12:35:55 -0800 ASSERTION FAILED: matchContextualKeyword(m_vm->propertyNames->async) 2018-03-01 21:55:45 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Local Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 andre.bargull ysuzuki commit-queue ews-watchlist keith_miller mark.lam msaboff saam webkit-bug-importer ysuzuki oldest_to_newest 1402392 0 andre.bargull 2018-02-27 12:35:55 -0800 SVN: rev228977 Build with: perl Tools/Scripts/build-jsc --jsc-only --debug Executing the following test case leads to this assertion: --- ASSERTION FAILED: matchContextualKeyword(m_vm->propertyNames->async) ../../Source/JavaScriptCore/parser/Parser.cpp(3640) : typename TreeBuilder::Expression JSC::Parser<LexerType>::parseAssignmentExpression(TreeBuilder&, JSC::Parser<LexerType>::ExpressionErrorClassifier&) [with TreeBuilder = JSC::ASTBuilder; LexerType = JSC::Lexer<unsigned char>; typename TreeBuilder::Expression = JSC::ExpressionNode*] 1 0x7f2e5603f705 WTFCrash 2 0x7f2e55b08569 JSC::ASTBuilder::Expression JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::ASTBuilder>(JSC::ASTBuilder&, JSC::Parser<JSC::Lexer<unsigned char> >::ExpressionErrorClassifier&) 3 0x7f2e55af0da2 JSC::ASTBuilder::Expression JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::ASTBuilder>(JSC::ASTBuilder&) 4 0x7f2e55b32470 JSC::ASTBuilder::Expression JSC::Parser<JSC::Lexer<unsigned char> >::parseExpression<JSC::ASTBuilder>(JSC::ASTBuilder&) 5 0x7f2e55b39716 JSC::ASTBuilder::Statement JSC::Parser<JSC::Lexer<unsigned char> >::parseExpressionStatement<JSC::ASTBuilder>(JSC::ASTBuilder&) 6 0x7f2e55b0eb2f JSC::ASTBuilder::Statement JSC::Parser<JSC::Lexer<unsigned char> >::parseStatement<JSC::ASTBuilder>(JSC::ASTBuilder&, JSC::Identifier const*&, unsigned int*) 7 0x7f2e55af358d JSC::ASTBuilder::Statement JSC::Parser<JSC::Lexer<unsigned char> >::parseStatementListItem<JSC::ASTBuilder>(JSC::ASTBuilder&, JSC::Identifier const*&, unsigned int*) 8 0x7f2e55adab62 JSC::ASTBuilder::SourceElements JSC::Parser<JSC::Lexer<unsigned char> >::parseSourceElements<JSC::ASTBuilder>(JSC::ASTBuilder&, JSC::SourceElementsMode) 9 0x7f2e55ac308b JSC::Parser<JSC::Lexer<unsigned char> >::parseInner(JSC::Identifier const&, JSC::SourceParseMode) 10 0x7f2e54f107cc std::unique_ptr<JSC::ProgramNode, std::default_delete<JSC::ProgramNode> > JSC::Parser<JSC::Lexer<unsigned char> >::parse<JSC::ProgramNode>(JSC::ParserError&, JSC::Identifier const&, JSC::SourceParseMode) 11 0x7f2e54f0b105 std::unique_ptr<JSC::ProgramNode, std::default_delete<JSC::ProgramNode> > JSC::parse<JSC::ProgramNode>(JSC::VM*, JSC::SourceCode const&, JSC::Identifier const&, JSC::JSParserBuiltinMode, JSC::JSParserStrictMode, JSC::JSParserScriptMode, JSC::SourceParseMode, JSC::SuperBinding, JSC::ParserError&, JSC::JSTextPosition*, JSC::ConstructorKind, JSC::DerivedContextType, JSC::EvalContextType, JSC::DebuggerParseData*) ... --- Test case: --- void class extends async()=>{}/a/g {} --- 1402852 1 334803 ysuzuki 2018-03-01 01:55:15 -0800 Created attachment 334803 Patch 1403074 2 saam 2018-03-01 15:23:05 -0800 <rdar://problem/35899603> 1403138 3 334803 commit-queue 2018-03-01 21:55:43 -0800 Comment on attachment 334803 Patch Clearing flags on attachment: 334803 Committed r229162: <https://trac.webkit.org/changeset/229162> 1403139 4 commit-queue 2018-03-01 21:55:45 -0800 All reviewed patches have been landed. Closing bug. 334803 2018-03-01 01:55:15 -0800 2018-03-01 21:55:43 -0800 Patch bug-183173-20180301185514.patch text/plain 3680 ysuzuki U3VidmVyc2lvbiBSZXZpc2lvbjogMjI5MDk4CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCA0 NWRlNmJkNjhlMjQ4ODRkOGUxZjZjZDZlNmJlMmJkYmJmMmI4MzcwLi5lODM4ZGQ1OTEzMTBkZjA3 YjgwOTBkMGI5MzA3NjNlMWJlNWVjZmM3IDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwxNyBAQAorMjAxOC0wMy0wMSAgWXVzdWtlIFN1enVraSAgPHV0YXRhbmUudGVhQGdtYWls LmNvbT4KKworICAgICAgICBBU1NFUlRJT04gRkFJTEVEOiBtYXRjaENvbnRleHR1YWxLZXl3b3Jk KG1fdm0tPnByb3BlcnR5TmFtZXMtPmFzeW5jKQorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0 Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MTgzMTczCisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZ IChPT1BTISkuCisKKyAgICAgICAgQ2xhc3NpZmllciBjb3VsZCBwcm9wYWdhdGUgYW4gZXJyb3Ig d2hpY2ggZG9lcyBub3Qgb2NjdXIgYXQgdGhlIGZpcnN0IHRva2VuCisgICAgICAgIG9mIHRoZSBn 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