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Re: [Emacs-diffs] master fbda511: Fix cps--gensym

From: Stefan Monnier
Subject: Re: [Emacs-diffs] master fbda511: Fix cps--gensym
Date: Fri, 15 May 2015 14:19:55 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)

>> format is already significantly more expensive than make-symbol, so
>> obviously, make-symbol + format will be even worse.
> OK but this doesn't impact runtime, right? All the hard work will be
> done in compile time.

No, it only impacts the macroexpansion time/space.  But the point is
that if you don't care about that, then you should use the
cl-gensym version.  The make-symbol version is the "fast path", so making
it fat&slow makes no sense.


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