Mercurial > hg > xemacs-beta
view src/xgccache.h @ 4502:8748a3f7ceb4
Handle varalias chains, custom variables in #'user-variable-p.
src/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* eval.c (Fuser_variable_p): Moved to symbols.c
* symbols.c (Fcustom_variable_p): Moved here from custom.el.
(user_variable_alias_check_fun): Mapper function used in
`user-variable-p'.
(Fuser_variable_p): Moved here from eval.c, to allow it to examine
the variable alias chain. Expanded to check each entry in the
variable alias chain for signs of being a user variable;
documentation updated, noting the differences between GNU's
behaviour and ours (ours is a little more sensible)
(map_varalias_chain): New.
Given a C function, call it at least once for each symbol in a
symbol's varalias chain, signalling an error if there's a cycle,
and returning immediately if the function returns something other
than Qzero.
(Fdefvaralias): Correct the use of the word "alias" in the
docstring and in the argument name. Motivate this in a
comment. Add support for a DOCSTRING argument, something GNU has
too, and document this
* gc.c (vars_of_gc): Start the docstring of
`garbage-collection-messages' with an asterisk, to indicate that
it's a user variable.
lisp/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* custom.el: Move #'custom-variable-p to C, since it's now called
from #'user-variable-p.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 23 Aug 2008 16:38:51 +0200 |
| parents | ad2f4ae9895b |
| children | b3ce27ca7647 |
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/* Efficient caching of X GCs (graphics contexts). Copyright (C) 1993 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 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. */ /* Written by jwz, 14 jun 93 */ #ifndef INCLUDED_xgccache_h_ #define INCLUDED_xgccache_h_ struct gc_cache; struct gc_cache *make_gc_cache (Display *, Window); void free_gc_cache (struct gc_cache *cache); GC gc_cache_lookup (struct gc_cache *, XGCValues *, unsigned long mask); #define XE_GCONTEXT(cell) (XGContextFromGC(cell->gc)) #ifdef DEBUG_XEMACS void describe_gc_cache (struct gc_cache *cache, int flags); #define DGCCFLAG_DISABLE 0 #define DGCCFLAG_SUMMARY 1 << 0 #define DGCCFLAG_LIST_CELLS 1 << 1 #define DGCCFLAG_CELL_DETAILS 1 << 2 /* A combination of the flags above. */ #define DGCCFLAG_DEFAULT DGCCFLAG_SUMMARY | DGCCFLAG_LIST_CELLS #endif #endif /* INCLUDED_xgccache_h_ */