[Webkit-unassigned] [Bug 144956] [ES6] Implement ES6 arrow function syntax. Arrow function specific features. Lexical bind of this
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bugzilla-daemon at webkit.org
Sun Aug 9 14:50:16 PDT 2015
https://bugs.webkit.org/show_bug.cgi?id=144956
--- Comment #116 from GSkachkov <gskachkov at gmail.com> ---
(In reply to comment #113)
> Comment on attachment 258505 [details]
> Patch
>
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=258505&action=review
>
> >>> Source/JavaScriptCore/bytecode/BytecodeUseDef.h:119
> >>> + case op_new_arrow_func_exp:
> >>
> >> This needs to also report the bound this operand as a use.
> >
> > Do you mean that that op_new_arrow_func_exp should have name that report about bound |this|, for instance op_new_arrow_func_exp_with_bound_this? I'm not sure, because arrow function also has lexical |arguments| binding, and |super|, |new.target| as well, so after implementing some of this feature we need to change this name.
>
> No, I mean that the op_new_arrowfunction has two bytecode operands it uses
> in this patch.
> You need to report those as uses here. For example, you need to have it do:
> functor(codeBlock, instruction, opcodeID, instruction[2].u.operand);
> // Scope
> functor(codeBlock, instruction, opcodeID, instruction[4].u.operand);
> // Bound this.
Thanks for the review and your time!
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