[Webkit-unassigned] [Bug 157079] New: Assertion failure for super() call in arrow function default parameters

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157079

            Bug ID: 157079
           Summary: Assertion failure for super() call in arrow function
                    default parameters
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: andre.bargull at gmail.com

SVN: rev200124
Build with: perl Tools/Scripts/build-jsc --gtk --debug


The following test case triggers this assertion error:
---
ASSERTION FAILED: !newTarget || newTarget.isConstructor()
---


Test case:
---
new class extends Array { constructor() { ((a = super())=>{})() } }
---


Stack trace:
---
#0  0x00007ffff6e289ac in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:322
#1  0x00007ffff6bbf077 in JSC::InternalFunction::createSubclassStructure (exec=0x7fffffffc9f0, newTarget=..., baseClass=0x7fffaedf4380) at ../../Source/JavaScriptCore/runtime/InternalFunction.cpp:100
#2  0x0000000000447887 in JSC::JSGlobalObject::arrayStructureForIndexingTypeDuringAllocation (this=0x7fffaede7900, exec=0x7fffffffc9f0, indexingType=3 '\003', newTarget=...)
    at ../../Source/JavaScriptCore/runtime/JSGlobalObject.h:506
#3  0x00000000004478c5 in JSC::JSGlobalObject::arrayStructureForProfileDuringAllocation (this=0x7fffaede7900, exec=0x7fffffffc9f0, profile=0x0, newTarget=...)
    at ../../Source/JavaScriptCore/runtime/JSGlobalObject.h:510
#4  0x00007ffff600afb9 in JSC::constructArray (exec=0x7fffffffc9f0, profile=0x0, globalObject=0x7fffaede7900, values=..., newTarget=...) at ../../Source/JavaScriptCore/runtime/JSGlobalObject.h:766
#5  0x00007ffff6b2efd6 in JSC::constructArrayWithSizeQuirk (exec=0x7fffffffc9f0, args=..., newTarget=...) at ../../Source/JavaScriptCore/runtime/ArrayConstructor.cpp:101
#6  0x00007ffff6b2f03c in JSC::constructWithArrayConstructor (exec=0x7fffffffc9f0) at ../../Source/JavaScriptCore/runtime/ArrayConstructor.cpp:107
#7  0x00007ffff6a296aa in JSC::(anonymous namespace)::handleHostCall (execCallee=0x7fffffffc9f0, pc=0x7ffff0dd7530, callee=..., kind=JSC::CodeForConstruct)
    at ../../Source/JavaScriptCore/llint/LLIntSlowPaths.cpp:1155
#8  0x00007ffff6a2c930 in JSC::(anonymous namespace)::setUpCall (execCallee=0x7fffffffc9f0, pc=0x7ffff0dd7530, kind=JSC::CodeForConstruct, calleeAsValue=..., callLinkInfo=0x7ffff0dbdcc8)
    at ../../Source/JavaScriptCore/llint/LLIntSlowPaths.cpp:1178
#9  0x00007ffff6a2cee3 in JSC::(anonymous namespace)::genericCall (exec=0x7fffffffca70, pc=0x7ffff0dd7530, kind=JSC::CodeForConstruct) at ../../Source/JavaScriptCore/llint/LLIntSlowPaths.cpp:1262
#10 0x00007ffff6a298d9 in JSC::(anonymous namespace)::llint_slow_path_construct (exec=0x7fffffffca70, pc=0x7ffff0dd7530) at ../../Source/JavaScriptCore/llint/LLIntSlowPaths.cpp:1274
#11 0x00007ffff6a33b3d in llint_entry () at ../../Source/JavaScriptCore/runtime/Butterfly.h:58
#12 0x00007ffff6a33818 in llint_entry () at ../../Source/JavaScriptCore/runtime/Butterfly.h:58
#13 0x00007ffff6a33b4b in llint_entry () at ../../Source/JavaScriptCore/runtime/Butterfly.h:58
#14 0x00007ffff6a2d895 in vmEntryToJavaScript () at ../../Source/JavaScriptCore/runtime/Butterfly.h:58
#15 0x00007ffff69d46d2 in JSC::JITCode::execute (this=0x7ffff0d9c668, vm=0x7fffb09f1000, protoCallFrame=0x7fffffffcd30) at ../../Source/JavaScriptCore/jit/JITCode.cpp:80
#16 0x00007ffff6997f4f in JSC::Interpreter::execute (this=0x7ffff0def058, program=0x7fffaedfbf70, callFrame=0x7fffaede7940, thisObj=0x7fffaedba360)
    at ../../Source/JavaScriptCore/interpreter/Interpreter.cpp:960
#17 0x00007ffff6b849ad in JSC::evaluate (exec=0x7fffaede7940, source=..., thisValue=..., returnedException=...) at ../../Source/JavaScriptCore/runtime/Completion.cpp:106
#18 0x000000000043a120 in runInteractive (globalObject=0x7fffaede7900) at ../../Source/JavaScriptCore/jsc.cpp:2083
#19 0x000000000043abcb in runJSC (vm=0x7fffb09f1000, options=...) at ../../Source/JavaScriptCore/jsc.cpp:2244
#20 0x000000000043b0a1 in jscmain (argc=1, argv=0x7fffffffdbb8) at ../../Source/JavaScriptCore/jsc.cpp:2293
#21 0x000000000043967f in main (argc=1, argv=0x7fffffffdbb8) at ../../Source/JavaScriptCore/jsc.cpp:1947
---

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