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Re: problems with flet on last emacs
From: |
Pascal J. Bourguignon |
Subject: |
Re: problems with flet on last emacs |
Date: |
Wed, 27 Jun 2012 18:29:27 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) |
Tassilo Horn <address@hidden> writes:
> "Pascal J. Bourguignon" <address@hidden> writes:
>
>>> Two times `x', and those should probably gensyms, anyway...
>>
>> They probably are.
>>
>> Try:
>>
>> (eq 'x (first (first (second (macroexpand '(flet ((foo () 1))
>> (foo)))))))
>> and try:
>>
>> (let ((expansion (macroexpand '(flet ((foo () 1)) (foo)))))
>> (eq (first (first (second expansion)))
>> (first (second (second expansion)))))
>
> Ok, both are nil, so x and x are different symbols. cl uses macroexp's
> macro expansion macros at various places, and `macroexp-let2' uses
> (make-symbol "x") to create new symbols. That's not making it easier to
> understand...
That'd be a "bug" in the emacs lisp printer.
Symbols that are not interned in any package should be printed with the
#: prefix. eg. in emacs-version "23.4.2", (make-symbol "x") --> #:x
--
__Pascal Bourguignon__ http://www.informatimago.com/
A bad day in () is better than a good day in {}.
- Re: problems with flet on last emacs, (continued)
- Re: problems with flet on last emacs, Thierry Volpiatto, 2012/06/27
- Re: problems with flet on last emacs, Ivan Kanis, 2012/06/28
- Re: problems with flet on last emacs, Thierry Volpiatto, 2012/06/28
- Re: problems with flet on last emacs, Ivan Kanis, 2012/06/29
- Re: problems with flet on last emacs, Thierry Volpiatto, 2012/06/29
Re: problems with flet on last emacs, Tassilo Horn, 2012/06/27
Re: problems with flet on last emacs, Andreas Schwab, 2012/06/27
Re: problems with flet on last emacs, Glenn Morris, 2012/06/27