From: Andreas Schwab <schwab@linux-m68k.org>
To: Lennart Borgman <lennart.borgman@gmail.com>
Cc: Emacs-Devel devel <emacs-devel@gnu.org>
Subject: Re: What does byte-compile a variable containing a lambda do?
Date: Wed, 03 Jun 2009 10:45:02 +0200 [thread overview]
Message-ID: <m2skih6701.fsf@igel.home> (raw)
In-Reply-To: <e01d8a50906021900o6717a428h75bcd03187287cc9@mail.gmail.com> (Lennart Borgman's message of "Wed, 3 Jun 2009 04:00:42 +0200")
Lennart Borgman <lennart.borgman@gmail.com> writes:
> The help text for byte-compile says
>
> byte-compile is a compiled Lisp function in `bytecomp.el'.
>
> (byte-compile form)
>
> If form is a symbol, byte-compile its function definition.
> If form is a lambda or a macro, byte-compile it as a function.
>
> I do not understand the last sentence. What happens? If a variable
> contains a lambda and you do
>
> (byte-compile VAR-WITH-LAMBDA)
Since byte-compile is a regular function, it can only see the value it
gets passed. So unless you pass it a symbol (first case) it can only
return the byte compiled form without side effect.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2009-06-03 8:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-03 2:00 What does byte-compile a variable containing a lambda do? Lennart Borgman
2009-06-03 8:45 ` Andreas Schwab [this message]
2009-06-03 9:28 ` Lennart Borgman
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