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e7efe8e793
* libguile/root.h * libguile/root.c (scm_sys_protects): It used to be that for some reason we'd define a special array of "protected" values. This was a little silly, always, but with the BDW GC it's completely unnecessary. Also many of these variables were unused, and none of them were good API. So remove this array, and either eliminate, make static, or make internal the various values. * libguile/snarf.h: No need to generate calls to scm_permanent_object. * guile-readline/readline.c (scm_init_readline): No need to call scm_permanent_object. * libguile/array-map.c (ramap, rafe): Remove the dubious nullvect optimizations. * libguile/async.c (scm_init_async): No need to init scm_asyncs, it is no more. * libguile/eval.c (scm_init_eval): No need to init scm_listofnull, it is no more. * libguile/gc.c: Make scm_protects a static var. (scm_storage_prehistory): Change the sanity check to use the address of protects. (scm_init_gc_protect_object): No need to clear the scm_sys_protects, as it is no more. * libguile/keywords.c: Make the keyword obarray a static var. * libguile/numbers.c: Make flo0 a static var. * libguile/objprop.c: Make object_whash a static var. * libguile/properties.c: Make properties_whash a static var. * libguile/srcprop.h: * libguile/srcprop.c: Make scm_source_whash a global with internal linkage. * libguile/strings.h: * libguile/strings.c: Make scm_nullstr a global with internal linkage. * libguile/vectors.c (scm_init_vectors): No need to init scm_nullvect, it's unused.
142 lines
4 KiB
C
142 lines
4 KiB
C
/* Copyright (C) 1995,1996,2000,2001, 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "libguile/_scm.h"
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#include "libguile/hashtab.h"
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#include "libguile/alist.h"
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#include "libguile/root.h"
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#include "libguile/weaks.h"
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#include "libguile/validate.h"
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#include "libguile/eval.h"
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#include "libguile/properties.h"
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/* {Properties}
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*/
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static SCM properties_whash;
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SCM_DEFINE (scm_primitive_make_property, "primitive-make-property", 1, 0, 0,
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(SCM not_found_proc),
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"Create a @dfn{property token} that can be used with\n"
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"@code{primitive-property-ref} and @code{primitive-property-set!}.\n"
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"See @code{primitive-property-ref} for the significance of\n"
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"@var{not_found_proc}.")
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#define FUNC_NAME s_scm_primitive_make_property
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{
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if (not_found_proc != SCM_BOOL_F)
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SCM_VALIDATE_PROC (SCM_ARG1, not_found_proc);
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return scm_cons (not_found_proc, SCM_EOL);
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}
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#undef FUNC_NAME
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SCM_DEFINE (scm_primitive_property_ref, "primitive-property-ref", 2, 0, 0,
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(SCM prop, SCM obj),
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"Return the property @var{prop} of @var{obj}.\n"
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"\n"
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"When no value has yet been associated with @var{prop} and\n"
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"@var{obj}, the @var{not-found-proc} from @var{prop} is used. A\n"
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"call @code{(@var{not-found-proc} @var{prop} @var{obj})} is made\n"
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"and the result set as the property value. If\n"
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"@var{not-found-proc} is @code{#f} then @code{#f} is the\n"
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"property value.")
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#define FUNC_NAME s_scm_primitive_property_ref
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{
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SCM h;
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SCM_VALIDATE_CONS (SCM_ARG1, prop);
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h = scm_hashq_get_handle (properties_whash, obj);
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if (scm_is_true (h))
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{
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SCM assoc = scm_assq (prop, SCM_CDR (h));
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if (scm_is_true (assoc))
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return SCM_CDR (assoc);
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}
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if (scm_is_false (SCM_CAR (prop)))
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return SCM_BOOL_F;
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else
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{
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SCM val = scm_call_2 (SCM_CAR (prop), prop, obj);
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if (scm_is_false (h))
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h = scm_hashq_create_handle_x (properties_whash, obj, SCM_EOL);
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SCM_SETCDR (h, scm_acons (prop, val, SCM_CDR (h)));
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return val;
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}
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}
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#undef FUNC_NAME
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SCM_DEFINE (scm_primitive_property_set_x, "primitive-property-set!", 3, 0, 0,
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(SCM prop, SCM obj, SCM val),
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"Set the property @var{prop} of @var{obj} to @var{val}.")
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#define FUNC_NAME s_scm_primitive_property_set_x
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{
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SCM h, assoc;
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SCM_VALIDATE_CONS (SCM_ARG1, prop);
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h = scm_hashq_create_handle_x (properties_whash, obj, SCM_EOL);
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assoc = scm_assq (prop, SCM_CDR (h));
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if (SCM_NIMP (assoc))
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SCM_SETCDR (assoc, val);
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else
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{
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assoc = scm_acons (prop, val, SCM_CDR (h));
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SCM_SETCDR (h, assoc);
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}
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return SCM_UNSPECIFIED;
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}
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#undef FUNC_NAME
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SCM_DEFINE (scm_primitive_property_del_x, "primitive-property-del!", 2, 0, 0,
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(SCM prop, SCM obj),
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"Remove any value associated with @var{prop} and @var{obj}.")
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#define FUNC_NAME s_scm_primitive_property_del_x
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{
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SCM h;
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SCM_VALIDATE_CONS (SCM_ARG1, prop);
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h = scm_hashq_get_handle (properties_whash, obj);
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if (scm_is_true (h))
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SCM_SETCDR (h, scm_assq_remove_x (SCM_CDR (h), prop));
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return SCM_UNSPECIFIED;
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}
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#undef FUNC_NAME
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void
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scm_init_properties ()
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{
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properties_whash = scm_make_weak_key_hash_table (SCM_UNDEFINED);
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#include "libguile/properties.x"
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}
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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