Path: news.daimi.aau.dk!poe
From: Peter Andersen <Peter.Andersen@mjolner.dk>
Newsgroups: comp.lang.beta
Subject: Re: Beta MacEnv Question
Date: 21 Apr 1995 11:14:21 GMT
Organization: DAIMI, Computer Science Dept. at Aarhus University
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Baiss E. Magnusson writes:
> 
> Hi,
> 
> In file <mactypes.bet> the line:
>  
>      initToolbox: (# g:^ GlobVars; enter g[] do g.init; inner; #);
> 
> exists, which I assume is the imperative which is executed
> first from <sample.bet>.
> 
> Now, since <initToolbox> is neither a sub-pattern or a virtual pattern,
> where does the <inner> go?
> 

If you just call

   ... -> initToolbox

the <inner> will act as a no-op, since it is no specialization
of the initToolbox pattern.

If, however, you call

   ... -> initToolbox(# do <something> #)

then the <inner> in initToolbox specialization will "call down" to execute <something>.

However, you are right, that in this specific example, the inner is
superflorious, since the exact same effect can be obtained by:

   ... -> initToolbox; <something>;

Sincerely,

Peter Andersen
_____________________________________________________________________________
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			     BETA is better
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