Mercurial > hg > xemacs-beta
diff lisp/ChangeLog @ 4716:dca5bb2adff1
Don't cons with #'mapcar calls where the result is discarded,
decide on mapc-internal at compile time if the Common Lisp functionality is
not being used.
2009-10-12 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (mapc):
New compiler macro, use mapc-internal at
compile time if we're not using the Common Lisp functionality.
* bytecomp.el (byte-compile-mapcar, byte-compile-maplist): New.
If the return value of mapcar is being discarded, compile it to a
mapc-internal call instead, and warn, because the programmer
probably can't rely on always being compiled by an XEmacs that
does this. Similarly for maplist and mapl; and use
byte-compile-funarg for map, mapl, mapcan, mapcon.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 12 Oct 2009 17:19:52 +0100 |
| parents | 84f870bbd17b |
| children | bd51ab22afa8 |
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--- a/lisp/ChangeLog Mon Oct 12 17:01:15 2009 +0100 +++ b/lisp/ChangeLog Mon Oct 12 17:19:52 2009 +0100 @@ -1,3 +1,15 @@ +2009-10-12 Aidan Kehoe <kehoea@parhasard.net> + + * cl-macs.el (mapc): + New compiler macro, use mapc-internal at + compile time if we're not using the Common Lisp functionality. + * bytecomp.el (byte-compile-mapcar, byte-compile-maplist): New. + If the return value of mapcar is being discarded, compile it to a + mapc-internal call instead, and warn, because the programmer + probably can't rely on always being compiled by an XEmacs that + does this. Similarly for maplist and mapl; and use + byte-compile-funarg for map, mapl, mapcan, mapcon. + 2009-10-12 Aidan Kehoe <kehoea@parhasard.net> * cl-macs.el (delete-duplicates):