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Re: Lexical let and setq
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From: |
Stefan Monnier |
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Subject: |
Re: Lexical let and setq |
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Date: |
Fri, 13 Sep 2013 23:46:36 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) |
> The primary reason I have seen the (let (foo) (setq foo ...)) idiom is
> in looping code.
That one is OK, since recursion is not supported efficiently.
The problem is when people use the above because they're writing (poor)
C code in Elisp (e.g. they begin their functions with a big let
declaring all the local vars that they may use later on in the
function).
Stefan