Mercurial > hg > xemacs-beta
view src/dump-data.c @ 5241:d579d76f3dcc
Be more careful about side-effects from Lisp code, #'reduce
src/ChangeLog addition:
2010-07-24 Aidan Kehoe <kehoea@parhasard.net>
* lisp.h (PARSE_KEYWORDS):
Always accept a nil :allow-other-keys keyword argument, as
described in the ALLOW-OTHER-KEYS-NIL Common Lisp issue writeup,
and as necessary for Paul Dietz' tests for #'reduce.
* fns.c (mapping_interaction_error): New.
(Freduce): Call mapping_interaction_error when KEY or FUNCTION
have modified a string SEQUENCE such that the byte length of the
string has changed, or such that the current cursor pointer
doesn't point to the beginning of a character.
Cf. the MAPPING-DESTRUCTIVE-INTERACTION Common Lisp issue
writeup.
When traversing a list, GCPRO the part of it we still have to
traverse, to avoid any crashes if FUNCTION or KEY amputate it
behind us and force a garbage collection.
tests/ChangeLog addition:
2010-07-24 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test a couple of things #'reduce was just made more careful
about.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 24 Jul 2010 15:56:57 +0100 |
| parents | ecf1ebac70d8 |
| children | 308d34e9f07d |
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/* Static array to put the dumped data in and its management Copyright (C) 2003 Olivier Galibert 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 2, 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; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: Not in FSF. */ /* Mule-ized? Mwahahahahahaha */ /* Magic values by Larry McVoy to prevent every known compiler, including an especially perverse HP-UX one, from putting the array in BSS. */ #include <config.h> #include "lisp.h" #include "dump-data.h" /* 4 bytes for the data size, 4096 for alignment */ static Rawbyte dumped_data[MAX_SIZE+4096+4] = { 255, 6, 1, 2, 3, 4, 255, 3, 9, 62, 255, 10, 4, 61, 255 }; size_t dumped_data_size (void) { return dumped_data[0] | (dumped_data[1] << 8) | (dumped_data[2] << 16) | (dumped_data[3] << 24); } size_t dumped_data_max_size (void) { return MAX_SIZE; } size_t dumped_data_align_offset (void) { EMACS_INT iptr = (EMACS_INT) dumped_data; EMACS_INT iptr2; iptr2 = (iptr + 4 + 4095) & ~(EMACS_INT) 4095; return iptr2 - iptr; } Rawbyte * dumped_data_get (void) { EMACS_INT iptr = (EMACS_INT) dumped_data; iptr = (iptr + 4 + 4095) & ~(EMACS_INT) 4095; return (Rawbyte *) iptr; }
