[Webkit-unassigned] [Bug 157082] New: Assertion failure for Reflect.construct with Intl.Collator and proxy object as new.target

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157082

            Bug ID: 157082
           Summary: Assertion failure for Reflect.construct with
                    Intl.Collator and proxy object as new.target
    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: prototype
---


Test case:
---
Reflect.construct(Intl.Collator, [], new Proxy(function(){},{}))
---


Stack trace:
---
#0  0x00007ffff6e289ac in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:322
#1  0x00007ffff6c5b30d in JSC::JSObject::setPrototypeDirect (this=0x7fffaedabf30, vm=..., prototype=...) at ../../Source/JavaScriptCore/runtime/JSObject.cpp:1320
#2  0x00007ffff6c5b6e4 in JSC::JSObject::setPrototypeWithCycleCheck (this=0x7fffaedabf30, vm=..., exec=0x7fffffffc800, prototype=..., shouldThrowIfCantSet=false)
    at ../../Source/JavaScriptCore/runtime/JSObject.cpp:1373
#3  0x00007ffff6c5b782 in JSC::JSObject::setPrototype (object=0x7fffaedabf30, exec=0x7fffffffc800, prototype=..., shouldThrowIfCantSet=false) at ../../Source/JavaScriptCore/runtime/JSObject.cpp:1379
#4  0x00007ffff6c5b7f2 in JSC::JSObject::setPrototype (this=0x7fffaedabf30, vm=..., exec=0x7fffffffc800, prototype=..., shouldThrowIfCantSet=false)
    at ../../Source/JavaScriptCore/runtime/JSObject.cpp:1389
#5  0x00007ffff6bc3f37 in JSC::constructIntlCollator (state=0x7fffffffc800) at ../../Source/JavaScriptCore/runtime/IntlCollatorConstructor.cpp:100
#6  0x00007ffff6a2da0a in vmEntryToNative () at ../../Source/JavaScriptCore/heap/Strong.h:85
#7  0x00007ffff6998ae5 in JSC::Interpreter::executeConstruct (this=0x7ffff0def058, callFrame=0x7fffffffcae0, constructor=0x7fffaeddef20, constructType=<incomplete type>, constructData=..., args=..., 
    newTarget=...) at ../../Source/JavaScriptCore/interpreter/Interpreter.cpp:1090
#8  0x00007ffff6b8a3ac in JSC::construct (exec=0x7fffffffcae0, constructorObject=..., constructType=<incomplete type>, constructData=..., args=..., newTarget=...)
    at ../../Source/JavaScriptCore/runtime/ConstructData.cpp:52
#9  0x00007ffff6cfbbd8 in JSC::reflectObjectConstruct (exec=0x7fffffffcae0) at ../../Source/JavaScriptCore/runtime/ReflectObject.cpp:130
#10 0x00007fffb0bff028 in ?? ()
#11 0x00007fffffffcb60 in ?? ()
#12 0x00007ffff6a33818 in llint_entry () from /home/andre/svn/webkit/WebKitBuild/Debug/lib/libjavascriptcoregtk-4.0.so.18
Backtrace stopped: frame did not save the PC
---

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