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Re: defvar inside let-binding

From: Stefan Monnier
Subject: Re: defvar inside let-binding
Date: Tue, 02 Aug 2011 15:22:35 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

> Since `defcustom' seems to be purely Emacs Lisp, and I don't think this
> data is available on the Emacs Lisp level (am I wrong?), perhaps just
> creating a C-level function `symbol-let-bound-p' (or something) would
> allow us to issue the warning, as a first step?
Yes.  Tho the "next" step you suggested (to cause defvar to change the
outer let-binding) will require another such function and will make
symbol-let-bound-p unneeded.


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