Subj : Re: relating to JS_DefineFunction
To   : netscape.public.mozilla.jseng
From : Brendan Eich
Date : Mon Apr 25 2005 10:38 am

Brendan Eich wrote:
> SteveHolt wrote:
> 
>>> use __noSuchMethod__ as well.
>>
>>
>>
>> I saw that pop its head up while testing. I think the original
>> requested name is lost by then though.
> 
> 
> 
> Not so:
> 
> js> o = {__noSuchMethod__: function () {
>         print(Array.prototype.toSource.call(arguments);
> }}


Argh, bash history truncated my example, and my fixup after copy and 
paste wasn't right (obviously).  For your strict-option compliant, copy 
and paste pleasure, make that:

var o = {
     __noSuchMethod__: function () {
         print(Array.prototype.toSource.call(arguments));
     }
};
print(o.fooby());  // ["fooby", []]
print(o.foopy());  // ["foopy", []]

/be

> js> o.fooby()
> ["fooby", []]
> js> o.foopy()
> ["foopy", []]
> 
> Unlike invocation in general, __noSuchMethod__ works (on purpose) only 
> for named calls (not indexed ones, or native ones where there is no 
> immediate name operand of a callee-computing bytecode sequence).
> 
> /be

.