From: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Andreas Schwab <schwab@suse.de>,
storm@cua.dk, rms@gnu.org, rgm@gnu.org, emacs-devel@gnu.org
Subject: Re: cl-byte-compile-compiler-macro
Date: Wed, 05 Apr 2006 16:12:36 -0400 [thread overview]
Message-ID: <jwvpsjvssbl.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <85acaz24nu.fsf@lola.goethe.zz> (David Kastrup's message of "Wed, 05 Apr 2006 21:39:17 +0200")
> Uh, what? Am I just confused about the terminology you use?
Yes.
> defmacro most certainly does not provide optional stuff to the compiler.
We're not talking about macros but about compiler-macros.
> defsubst would, but is the result of that called a "compiler macro" while
> the result of "defmacro" isn't?
Yes. A compiler-macro, contrary to a macro, is only expanded by the
compiler but not by the interpreter, so you can't rely on it
being expanded. Also it's not expanded if the function is
called indirectly.
> It appears that the current behavior makes it hard to track down the
> problem. I think the solution should be to create better diagnostics
> for pinpointing the problem instead of removing them completely.
OK, here's the same but with a diagnostic.
Stefan
Index: bytecomp.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/emacs-lisp/bytecomp.el,v
retrieving revision 2.181
diff -u -u -b -r2.181 bytecomp.el
--- bytecomp.el 13 Jan 2006 09:54:33 -0000 2.181
+++ bytecomp.el 5 Apr 2006 20:11:50 -0000
@@ -2765,6 +2764,14 @@
(byte-compile-warn "`%s' used from Lisp code\n\
That command is designed for interactive use only" fn))
(if (and handler
+ ;; Make sure that function exists. This is important
+ ;; for CL compiler macros since the symbol may be
+ ;; `cl-byte-compile-compiler-macro' but if CL isn't
+ ;; loaded, this function doesn't exist.
+ (or (fboundp handler)
+ (progn (byte-compile-warn
+ "Ignoring byte-compiler handler `%S'" handler)
+ nil))
(or (not (byte-compile-version-cond
byte-compile-compatibility))
(not (get (get fn 'byte-opcode) 'emacs19-opcode))))
next prev parent reply other threads:[~2006-04-05 20:12 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-22 21:02 cl-byte-compile-compiler-macro Kim F. Storm
2006-03-23 23:52 ` cl-byte-compile-compiler-macro Glenn Morris
2006-03-24 23:25 ` cl-byte-compile-compiler-macro Richard Stallman
2006-03-25 2:52 ` cl-byte-compile-compiler-macro Glenn Morris
2006-03-25 9:43 ` cl-byte-compile-compiler-macro Glenn Morris
2006-03-25 14:20 ` cl-byte-compile-compiler-macro Andreas Schwab
2006-03-28 6:39 ` cl-byte-compile-compiler-macro Glenn Morris
2006-03-25 15:26 ` cl-byte-compile-compiler-macro Richard Stallman
2006-03-25 20:55 ` cl-byte-compile-compiler-macro Kim F. Storm
2006-03-26 11:21 ` cl-byte-compile-compiler-macro Richard Stallman
2006-03-26 14:10 ` cl-byte-compile-compiler-macro Andreas Schwab
2006-03-27 2:07 ` cl-byte-compile-compiler-macro Stefan Monnier
2006-03-27 9:34 ` cl-byte-compile-compiler-macro Andreas Schwab
2006-03-27 22:29 ` cl-byte-compile-compiler-macro Richard Stallman
2006-03-27 23:44 ` cl-byte-compile-compiler-macro Andreas Schwab
2006-03-28 19:33 ` cl-byte-compile-compiler-macro Richard Stallman
2006-04-04 19:57 ` cl-byte-compile-compiler-macro Richard Stallman
2006-04-04 20:37 ` cl-byte-compile-compiler-macro Andreas Schwab
2006-04-05 3:47 ` cl-byte-compile-compiler-macro Richard Stallman
2006-04-05 9:27 ` cl-byte-compile-compiler-macro Andreas Schwab
2006-04-05 13:04 ` cl-byte-compile-compiler-macro Stefan Monnier
2006-04-05 19:06 ` cl-byte-compile-compiler-macro Richard Stallman
2006-04-05 19:32 ` cl-byte-compile-compiler-macro Stefan Monnier
2006-04-05 19:39 ` cl-byte-compile-compiler-macro David Kastrup
2006-04-05 20:12 ` Stefan Monnier [this message]
2006-04-06 3:58 ` cl-byte-compile-compiler-macro Richard Stallman
2006-04-08 15:09 ` cl-byte-compile-compiler-macro Stefan Monnier
2006-04-05 21:23 ` cl-byte-compile-compiler-macro Andreas Schwab
2006-04-04 20:50 ` cl-byte-compile-compiler-macro Stefan Monnier
2006-03-28 6:52 ` cl-byte-compile-compiler-macro Glenn Morris
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