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

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon May 9 12:46:29 PDT 2016


--- Comment #9 from GSkachkov <gskachkov at gmail.com> ---
(In reply to comment #7)
> I see we have the following comment:
>     // Loading |this| inside an arrow function must be done after
> initializeDefaultParameterValuesAndSetupFunctionScopeStack()
>     // because that function sets up the SymbolTable stack and
> emitLoadThisFromArrowFunctionLexicalEnvironment()
>     // consults the SymbolTable stack
> Is that comment correct though? I don't see why we need to consult the local
> symbol table stack here because we should always be doing non-local
> resolution.

Oh, I've copy pasted comments with if condition. 
I can be wrong, but if we do emitLoadThisFromArrowFunctionLexicalEnvironment before initializeDefaultParameterValuesAndSetupFunctionScopeStack, we resolved to wrong scope

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