From: Sean Russell <ser@...>
Date: 2001-05-09T02:05:15+09:00
Subject: [ruby-talk:14873] Re: skipping arguments

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Je Lundo 07 Majo 2001 18:13, vi skribis:
> My guess is that this would make parsing more difficult. After all, an
> actual parameter can be an arbitrary expression.

Unless it makes the statement more ambiguous, it wouldn't make parsing more 
difficult.

> Besides, we have a precedent that
>     a b c d
> means the same as
>     a(b(c(d)))
> which would have to change.

And there's the answer to my question.  Ruby could still intelligently parse 
"a b c d" using priority rules; it already does so for "1 + 2 * 3"... 
however, using commas removes the need for Ruby to do priority checks in this 
particular case, so there is likely a speed win in using commas.

It might be possible, however, to allow for comma-less statements, the use of 
which would incur a performance penalty, while using commas would give a 
performance boost.

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