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Re: top-level lexical bindings
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From: |
Stefan Monnier |
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Subject: |
Re: top-level lexical bindings |
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Date: |
Mon, 27 Jan 2014 18:45:48 -0500 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) |
> When Emacs 24.1 was released and lexical bindings introduced, there was
> apparently a problem with top-level lexical variables inside defuns:
> Instead of writing
> ```
> (let ((x))
> (defun foo ()
> (setq x ...)))
> ```
> one had to write:
> ```
> (let ((x))
> (defalias 'foo (lambda ()
> (setq x ...))))
> ```
> I was wondering if this issue has been resolved yet. I can't find
> anything about it in the NEWS file, so I'm guessing not?
Yes, it's been resolved. In 24.3 `defun' is a macro that expands to the
`defalias' form.
Stefan