[webkit-dev] JS: Getter/Setter callbacks at Property level

Maciej Stachowiak mjs at apple.com
Fri Jul 24 23:10:55 PDT 2009

On Jul 24, 2009, at 7:23 AM, Brian Barnes wrote:

> This:
> "
> 2) There's not currently a performance penalty for re-checking the  
> property name in the catchall getter that you currently have  
> available, because it gets called without JavaScriptCore doing a  
> property lookup first.
> "
> Pretty much changes everything for me.  Now it's just code I have to  
> write instead of a possible spot of un-optimal code when "context"  
> switching between my code and the script engine.  I think a way to  
> one-off way is still more desirable, but this removes my biggest fear.

I will say this though: in the future, defining setters for the class  
will allow for greater optimization than is currently possible. So  
it's definitely worth adding that API in due course.


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