Invisible wrote:
> At a simple level, you could just scan the source when you compile it, 
> and replace any calls to the #ifTrue:ifFlase: method (and friends) with 
> the appropriate machine instructions.

Internally, that's what it does. Of course, if you send that to something 
that isn't a boolean, *then* you get an even bigger overhead.

> Then again, Smalltalk is an interpretted language. Speed is quite 
> clearly *not* its main objective.

This is not something that noticably slows things down, tho. When 
*everything* is a message dispatch, you can design your microcode to do that 
efficiently.

-- 
Darren New, San Diego CA, USA (PST)
   Yes, we're traveling togeher,
   but to different destinations.

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