[Webkit-unassigned] [Bug 74708] Optimize access to block-scoped local variables

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=74708





--- Comment #3 from Andy Wingo <wingo at igalia.com>  2011-12-21 14:14:51 PST ---
(In reply to comment #2)
> In-band signaling is error-prone. It's not great that you had to add an explanatory comment to every call site.
> 
> I'd prefer to see some refactoring here:
> 
> (1) Rename findScopedProperty to resolve;
> 
> (2) Change resolve to return an object, ResolveResult, describing what it found.
> 
> (3) Add "I found a block-scoped variable" as a feature to ResolveResult.
> 
> (4) Add optimizations to take advantage of (3).

Thanks for the review.  I will work on a new patch that does this.  Incidentally, V8's implementation of block-scoped lexicals drove a similar refactor within V8.

Andy

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