Comment #7 on issue 633 by bedney1: Implement harmony proxies
http://code.google.com/p/v8/issues/detail?id=633
Bradley -
As the party who originally requested the __noSuchMethod__ functionality to
be added to SpiderMonkey years ago, I would respectively disagree with your
characterization of it as a 'convenience'. Being able to supply proxy
objects and have them act as 'stand in's is an expression of a very
powerful design pattern. Most modern dynamic languages provide a similar
capability (Smalltalk has doesNotUnderstand, Ruby has methodMissing, Python
has getAttr/setAttr).
You can find more about a slightly formalized version of this discussion by
myself and my business partner here:
https://mail.mozilla.org/pipermail/es-discuss/2008-August/006901.html
I would agree that I find the current Harmony proxy proposal unwieldy since
it loads the notion of 'wrapping' objects onto the programmer at every
point that a proxy object is desired. IMO, a mechanism such as
__noSuchMethod__ is cleaner and more dynamic. However, it looks like that
desire has been discarded by the language lawyers in the ECMAScript
committee.
Cheers,
- Bill
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