From: "Pascal J. Bourguignon" <pjb@informatimago.com>
To: help-gnu-emacs@gnu.org
Subject: Re: random predicate function
Date: Wed, 15 Dec 2010 18:28:33 +0100 [thread overview]
Message-ID: <87y67rx7we.fsf@kuiper.lan.informatimago.com> (raw)
In-Reply-To: 87bp4nx9y8.fsf@lifelogs.com
Ted Zlatanov <tzz@lifelogs.com> writes:
> On Wed, 15 Dec 2010 16:20:05 +0100 "Pascal J. Bourguignon" <pjb@informatimago.com> wrote:
>
> PJB> Ted Zlatanov <tzz@lifelogs.com> writes:
>>> I agree the CL macros are nicer, but the non-macro version is much
>>> easier to debug *in GNU Emacs* and it's already installed. So they both
>>> have benefits.
>
> PJB> I don't see how code without macros is easier to debug, there are so
> PJB> many macros in lisp code.
>
> We're talking about GNU Emacs specifically. Have you debugged macros
> there? They are definitely not as intuitive as functions in the debugger.
Only if you don't understand that lisp macros are exactly the same as
lisp functions.
For any macro (defmacro m (args...) body...)
you can write a function (defun m* (args...) body...)
and replace the macro by (defmacro m (args...) (m* args...))
Such a macro is trivial to debug: it just calls a single function!
Therefore macros are as easy as functions to debug.
So, no, I'm sorry, but I never observed any difference between debugging
of macros or functions.
--
__Pascal Bourguignon__ http://www.informatimago.com/
A bad day in () is better than a good day in {}.
next prev parent reply other threads:[~2010-12-15 17:28 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.0.1292251427.11097.help-gnu-emacs@gnu.org>
2010-12-13 15:26 ` random predicate function Pascal J. Bourguignon
2010-12-13 17:16 ` Ted Zlatanov
2010-12-13 17:48 ` Pascal J. Bourguignon
2010-12-15 14:51 ` Ted Zlatanov
2010-12-15 15:20 ` Pascal J. Bourguignon
2010-12-15 16:44 ` Ted Zlatanov
2010-12-15 17:28 ` Pascal J. Bourguignon [this message]
2010-12-15 18:39 ` Ted Zlatanov
2010-12-15 18:04 ` Drew Adams
2010-12-13 18:17 ` Tyler Smith
[not found] ` <mailman.2.1292264248.1009.help-gnu-emacs@gnu.org>
2010-12-13 18:38 ` Pascal J. Bourguignon
2010-12-13 19:05 ` Tyler Smith
2010-12-13 14:43 Tyler Smith
2010-12-13 15:37 ` Gary
2010-12-13 16:08 ` Tyler Smith
2010-12-13 16:16 ` Erik Iverson
2010-12-13 16:50 ` Tyler Smith
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