On 9/25/14, 4:31 PM, Tab Atkins Jr. wrote:
Yes, that is what I'm proposing. If lookup fails completely (reaches
Object.prototype without finding the named property), it then does a
second lookup for the magic NSP property, and if it finds it, executes
it with the property name, returning the return value as the result of
the original lookup.
SpiderMonkey used to support __noSuchMethod__, I believe.
It was removed because it caused problems for the JIT (in addition to
being non-standard, etc, etc). Might be worth looking into what those
were, exactly, before we consider standardizing something like this.
-Boris
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