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<base href="https://bugs.webkit.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion failure for destructuring assignment with new.target and unary operator"
href="https://bugs.webkit.org/show_bug.cgi?id=157149">157149</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion failure for destructuring assignment with new.target and unary operator
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Local Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>OS</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>JavaScriptCore
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>andre.bargull@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>SVN: rev200124
Build with: perl Tools/Scripts/build-jsc --gtk --debug
The following test case triggers this assertion error:
---
ASSERTION FAILED: !hasError()
---
Test case:
---
function f(){ ({v = (typeof new.target)} = {}) }
---
Stack trace:
---
#0 0x00007ffff6e289ac in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:322
#1 0x00007ffff6ab8bb3 in JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=..., classifier=...)
at ../../Source/JavaScriptCore/parser/Parser.cpp:3051
#2 0x00007ffff6a96cf2 in JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3045
#3 0x00007ffff6ab944c in JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=..., classifier=...)
at ../../Source/JavaScriptCore/parser/Parser.cpp:3119
#4 0x00007ffff6a96cf2 in JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3045
#5 0x00007ffff6aa7f32 in JSC::Parser<JSC::Lexer<unsigned char> >::parseExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3007
#6 0x00007ffff6aefb6e in JSC::Parser<JSC::Lexer<unsigned char> >::parsePrimaryExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3749
#7 0x00007ffff6ad967b in JSC::Parser<JSC::Lexer<unsigned char> >::parseMemberExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3948
#8 0x00007ffff6afc0c3 in JSC::Parser<JSC::Lexer<unsigned char> >::parseUnaryExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:4109
#9 0x00007ffff6af20c8 in JSC::Parser<JSC::Lexer<unsigned char> >::parseBinaryExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3265
#10 0x00007ffff6adfc1a in JSC::Parser<JSC::Lexer<unsigned char> >::parseConditionalExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3224
#11 0x00007ffff6ab8e60 in JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=..., classifier=...)
at ../../Source/JavaScriptCore/parser/Parser.cpp:3075
#12 0x00007ffff6a96cf2 in JSC::Parser<JSC::Lexer<unsigned char> >::parseAssignmentExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3045
#13 0x00007ffff6aa7f32 in JSC::Parser<JSC::Lexer<unsigned char> >::parseExpression<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:3007
#14 0x00007ffff6ab2079 in JSC::Parser<JSC::Lexer<unsigned char> >::parseExpressionStatement<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=...) at ../../Source/JavaScriptCore/parser/Parser.cpp:2533
#15 0x00007ffff6a94f66 in JSC::Parser<JSC::Lexer<unsigned char> >::parseStatement<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=..., directive=@0x7fffffff9308: 0x0,
directiveLiteralLength=0x7fffffff92f8) at ../../Source/JavaScriptCore/parser/Parser.cpp:1711
#16 0x00007ffff6a81e24 in JSC::Parser<JSC::Lexer<unsigned char> >::parseStatementListItem<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=..., directive=@0x7fffffff9308: 0x0,
directiveLiteralLength=0x7fffffff92f8) at ../../Source/JavaScriptCore/parser/Parser.cpp:578
#17 0x00007ffff6a823a4 in JSC::Parser<JSC::Lexer<unsigned char> >::parseSourceElements<JSC::SyntaxChecker> (this=0x7fffffffa2a0, context=..., mode=JSC::CheckForStrictMode)
at ../../Source/JavaScriptCore/parser/Parser.cpp:404
#18 0x00007ffff6ad6aac in JSC::Parser<JSC::Lexer<unsigned char> >::parseFunctionBody<JSC::ASTBuilder> (this=0x7fffffffa2a0, context=..., syntaxChecker=..., startLocation=..., startColumn=10,
functionKeywordStart=0, functionNameStart=9, parametersStart=10, constructorKind=JSC::ConstructorKind::None, superBinding=JSC::SuperBinding::NotNeeded, bodyType=JSC::StandardFunctionBodyBlock,
parameterCount=0, parseMode=JSC::SourceParseMode::NormalFunctionMode) at ../../Source/JavaScriptCore/parser/Parser.cpp:1786
#19 0x00007ffff6aa2cc5 in JSC::Parser<JSC::Lexer<unsigned char> >::<lambda()>::operator()(void) const (__closure=0x7fffffff9610) at ../../Source/JavaScriptCore/parser/Parser.cpp:2110
#20 0x00007ffff6aa3be2 in JSC::Parser<JSC::Lexer<unsigned char> >::parseFunctionInfo<JSC::ASTBuilder> (this=0x7fffffffa2a0, context=..., requirements=JSC::FunctionNeedsName,
mode=JSC::SourceParseMode::NormalFunctionMode, nameIsInContainingScope=true, constructorKind=JSC::ConstructorKind::None, expectedSuperBinding=JSC::SuperBinding::NotNeeded, functionKeywordStart=0,
functionInfo=..., functionDefinitionType=JSC::Parser<JSC::Lexer<unsigned char> >::FunctionDefinitionType::Declaration) at ../../Source/JavaScriptCore/parser/Parser.cpp:2127
#21 0x00007ffff6a92665 in JSC::Parser<JSC::Lexer<unsigned char> >::parseFunctionDeclaration<JSC::ASTBuilder> (this=0x7fffffffa2a0, context=...,
exportType=JSC::Parser<JSC::Lexer<unsigned char> >::ExportType::NotExported) at ../../Source/JavaScriptCore/parser/Parser.cpp:2222
#22 0x00007ffff6a820e3 in JSC::Parser<JSC::Lexer<unsigned char> >::parseStatementListItem<JSC::ASTBuilder> (this=0x7fffffffa2a0, context=..., directive=@0x7fffffff9938: 0x0,
directiveLiteralLength=0x7fffffff9930) at ../../Source/JavaScriptCore/parser/Parser.cpp:564
#23 0x00007ffff6a75af3 in JSC::Parser<JSC::Lexer<unsigned char> >::parseSourceElements<JSC::ASTBuilder> (this=0x7fffffffa2a0, context=..., mode=JSC::CheckForStrictMode)
at ../../Source/JavaScriptCore/parser/Parser.cpp:404
#24 0x00007ffff6a6730d in JSC::Parser<JSC::Lexer<unsigned char> >::parseInner (this=0x7fffffffa2a0, calleeName=..., parseMode=JSC::SourceParseMode::ProgramMode)
at ../../Source/JavaScriptCore/parser/Parser.cpp:285
#25 0x00007ffff601b3f4 in JSC::Parser<JSC::Lexer<unsigned char> >::parse<JSC::ProgramNode> (this=0x7fffffffa2a0, error=..., calleeName=..., parseMode=JSC::SourceParseMode::ProgramMode)
at ../../Source/JavaScriptCore/parser/Parser.h:1626
#26 0x00007ffff601a2e1 in JSC::parse<JSC::ProgramNode> (vm=0x7fffb09f1000, source=..., name=..., builtinMode=JSC::JSParserBuiltinMode::NotBuiltin, strictMode=JSC::JSParserStrictMode::NotStrict,
parseMode=JSC::SourceParseMode::ProgramMode, superBinding=JSC::SuperBinding::NotNeeded, error=..., positionBeforeLastNewline=0x0, defaultConstructorKind=JSC::ConstructorKind::None,
thisTDZMode=<incomplete type>, derivedContextType=JSC::DerivedContextType::None, evalContextType=JSC::EvalContextType::None) at ../../Source/JavaScriptCore/parser/Parser.h:1712
#27 0x00007ffff6b406e5 in JSC::CodeCache::getGlobalCodeBlock<JSC::UnlinkedProgramCodeBlock, JSC::ProgramExecutable> (this=0x7ffff0def000, vm=..., executable=0x7fffaedfbf70, source=...,
builtinMode=JSC::JSParserBuiltinMode::NotBuiltin, strictMode=JSC::JSParserStrictMode::NotStrict, thisTDZMode=JSC::ThisTDZMode::CheckIfNeeded, debuggerMode=JSC::DebuggerOff,
profilerMode=JSC::ProfilerOff, error=..., evalContextType=JSC::EvalContextType::None, variablesUnderTDZ=0x7fffffffc8f0) at ../../Source/JavaScriptCore/runtime/CodeCache.cpp:106
#28 0x00007ffff6b3dccc in JSC::CodeCache::getProgramCodeBlock (this=0x7ffff0def000, vm=..., executable=0x7fffaedfbf70, source=..., builtinMode=JSC::JSParserBuiltinMode::NotBuiltin,
strictMode=JSC::JSParserStrictMode::NotStrict, debuggerMode=JSC::DebuggerOff, profilerMode=JSC::ProfilerOff, error=...) at ../../Source/JavaScriptCore/runtime/CodeCache.cpp:138
#29 0x00007ffff6c046c9 in JSC::JSGlobalObject::createProgramCodeBlock (this=0x7fffaede7900, callFrame=0x7fffaede7940, executable=0x7fffaedfbf70, exception=0x7fffffffcaa0)
at ../../Source/JavaScriptCore/runtime/JSGlobalObject.cpp:1086
#30 0x00007ffff6ba736d in JSC::ProgramExecutable::initializeGlobalProperties (this=0x7fffaedfbf70, vm=..., callFrame=0x7fffaede7940, scope=0x7fffaeddbfc0)
at ../../Source/JavaScriptCore/runtime/Executable.cpp:586
#31 0x00007ffff6997c78 in JSC::Interpreter::execute (this=0x7ffff0def058, program=0x7fffaedfbf70, callFrame=0x7fffaede7940, thisObj=0x7fffaedba360)
at ../../Source/JavaScriptCore/interpreter/Interpreter.cpp:940
#32 0x00007ffff6b849ad in JSC::evaluate (exec=0x7fffaede7940, source=..., thisValue=..., returnedException=...) at ../../Source/JavaScriptCore/runtime/Completion.cpp:106
#33 0x000000000043a120 in runInteractive (globalObject=0x7fffaede7900) at ../../Source/JavaScriptCore/jsc.cpp:2083
#34 0x000000000043abcb in runJSC (vm=0x7fffb09f1000, options=...) at ../../Source/JavaScriptCore/jsc.cpp:2244
#35 0x000000000043b0a1 in jscmain (argc=1, argv=0x7fffffffdbb8) at ../../Source/JavaScriptCore/jsc.cpp:2293
#36 0x000000000043967f in main (argc=1, argv=0x7fffffffdbb8) at ../../Source/JavaScriptCore/jsc.cpp:1947
---</pre>
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