Mercurial > hg > xemacs-beta
view modules/zlib/zlib.c @ 5502:5b08be74bb53
Be better about recognising side-effect-free forms, byte-optimize.el.
2011-05-07 Aidan Kehoe <kehoea@parhasard.net>
* byte-optimize.el:
* byte-optimize.el (byte-optimize-form-code-walker):
Call #'byte-optimize-side-effect-free-p on the form, rather than
just checking the plist of the form's car.
* byte-optimize.el (side-effect-free-fns):
Move the CL functions into their alphabetical place in the list.
* byte-optimize.el (function):
* byte-optimize.el (byte-optimize-side-effect-free-p): New.
Function returning non-nil if a funcall has no side-effects, which
handles things like (remove* item list :key 'car) and
(remove-if-not #'integerp list).
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Sat, 07 May 2011 11:45:20 +0100 |
parents | 308d34e9f07d |
children |
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/* zlib interface for XEmacs. Copyright (C) 1998 Free Software Foundation, Inc. This file is part of XEmacs. XEmacs is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. XEmacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ /* Synched up with: Not in FSF. */ /* Author: William Perry <wmperry@aventail.com> */ #include <emodules.h> DEFUN ("compress", Fcompress, 1, 6, 0, /* Return the compressed version of an object. OBJECT is either a string or a buffer. Optional argument LEVEL specifies how much to compress - valid range is 0 - 9. Optional arguments START and END denote buffer positions for compressing a portion of OBJECT. The optional CODING argument specifies the coding system the text is to be represented in while computing the digest. This only has meaning with MULE, and defaults to the current format of the data. If ERROR-ME-NOT is nil, report an error if the coding system can't be determined. Else assume binary coding if all else fails. */ (object, level, start, end, coding, error_me_not)) { return(Qnil); } DEFUN ("decompress", Fdecompress, 1, 5, 0, /* Uncompress an object. OBJECT is either a string or a buffer. Optional arguments START and END denote buffer positions for decompressing a portion of OBJECT. The optional CODING argument specifies the coding system the text is to be represented in while computing the digest. This only has meaning with MULE, and defaults to the current format of the data. If ERROR-ME-NOT is nil, report an error if the coding system can't be determined. Else assume binary coding if all else fails. */ (object, start, end, coding, error_me_not)) { return(Qnil); } void syms_of_zlib (void) { DEFSUBR(Fcompress); DEFSUBR(Fdecompress); } void vars_of_zlib (void) { Fprovide (intern ("zlib")); }