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dbb605f5 | 1 | /* Copyright (C) 1995,1996, 2000, 2001, 2003, 2006, 2008 Free Software Foundation, Inc. |
0f2d19dd | 2 | * |
73be1d9e | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
0f2d19dd | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
0f2d19dd | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
73be1d9e | 17 | */ |
1bbd0b84 | 18 | |
1bbd0b84 | 19 | |
0f2d19dd | 20 | \f |
dbb605f5 LC |
21 | #ifdef HAVE_CONFIG_H |
22 | # include <config.h> | |
23 | #endif | |
0f2d19dd | 24 | |
a0599745 | 25 | #include "libguile/_scm.h" |
4e047c3e | 26 | #include "libguile/async.h" |
a0599745 MD |
27 | #include "libguile/hashtab.h" |
28 | #include "libguile/alist.h" | |
29 | #include "libguile/root.h" | |
30 | #include "libguile/weaks.h" | |
0f2d19dd | 31 | |
a0599745 | 32 | #include "libguile/objprop.h" |
0f2d19dd JB |
33 | \f |
34 | ||
35 | /* {Object Properties} | |
36 | */ | |
37 | ||
3b3b36dd | 38 | SCM_DEFINE (scm_object_properties, "object-properties", 1, 0, 0, |
1bbd0b84 | 39 | (SCM obj), |
b380b885 | 40 | "Return @var{obj}'s property list.") |
1bbd0b84 | 41 | #define FUNC_NAME s_scm_object_properties |
0f2d19dd | 42 | { |
8ba7a00b | 43 | return scm_hashq_ref (scm_object_whash, obj, SCM_EOL); |
0f2d19dd | 44 | } |
1bbd0b84 | 45 | #undef FUNC_NAME |
0f2d19dd JB |
46 | |
47 | ||
3b3b36dd | 48 | SCM_DEFINE (scm_set_object_properties_x, "set-object-properties!", 2, 0, 0, |
1e6808ea | 49 | (SCM obj, SCM alist), |
b380b885 | 50 | "Set @var{obj}'s property list to @var{alist}.") |
1bbd0b84 | 51 | #define FUNC_NAME s_scm_set_object_properties_x |
0f2d19dd | 52 | { |
1e6808ea MG |
53 | SCM handle = scm_hashq_create_handle_x (scm_object_whash, obj, alist); |
54 | SCM_SETCDR (handle, alist); | |
55 | return alist; | |
0f2d19dd | 56 | } |
1bbd0b84 | 57 | #undef FUNC_NAME |
0f2d19dd | 58 | |
3b3b36dd | 59 | SCM_DEFINE (scm_object_property, "object-property", 2, 0, 0, |
1bbd0b84 | 60 | (SCM obj, SCM key), |
b380b885 | 61 | "Return the property of @var{obj} with name @var{key}.") |
1bbd0b84 | 62 | #define FUNC_NAME s_scm_object_property |
0f2d19dd JB |
63 | { |
64 | SCM assoc; | |
332ab360 | 65 | assoc = scm_assq (key, scm_object_properties (obj)); |
0f2d19dd JB |
66 | return (SCM_NIMP (assoc) ? SCM_CDR (assoc) : SCM_BOOL_F); |
67 | } | |
1bbd0b84 | 68 | #undef FUNC_NAME |
0f2d19dd | 69 | |
3b3b36dd | 70 | SCM_DEFINE (scm_set_object_property_x, "set-object-property!", 3, 0, 0, |
1e6808ea | 71 | (SCM obj, SCM key, SCM value), |
1e6808ea MG |
72 | "In @var{obj}'s property list, set the property named @var{key}\n" |
73 | "to @var{value}.") | |
1bbd0b84 | 74 | #define FUNC_NAME s_scm_set_object_property_x |
0f2d19dd JB |
75 | { |
76 | SCM h; | |
77 | SCM assoc; | |
78 | h = scm_hashq_create_handle_x (scm_object_whash, obj, SCM_EOL); | |
9de87eea | 79 | SCM_CRITICAL_SECTION_START; |
e869585c | 80 | assoc = scm_assq (key, SCM_CDR (h)); |
0f2d19dd | 81 | if (SCM_NIMP (assoc)) |
1e6808ea | 82 | SCM_SETCDR (assoc, value); |
0f2d19dd JB |
83 | else |
84 | { | |
1e6808ea | 85 | assoc = scm_acons (key, value, SCM_CDR (h)); |
0f2d19dd JB |
86 | SCM_SETCDR (h, assoc); |
87 | } | |
9de87eea | 88 | SCM_CRITICAL_SECTION_END; |
1e6808ea | 89 | return value; |
0f2d19dd | 90 | } |
1bbd0b84 | 91 | #undef FUNC_NAME |
0f2d19dd | 92 | |
1cc91f1b | 93 | |
0f2d19dd JB |
94 | void |
95 | scm_init_objprop () | |
0f2d19dd | 96 | { |
231a4ea8 | 97 | scm_object_whash = scm_make_weak_key_hash_table (SCM_UNDEFINED); |
a0599745 | 98 | #include "libguile/objprop.x" |
0f2d19dd JB |
99 | } |
100 | ||
89e00824 ML |
101 | |
102 | /* | |
103 | Local Variables: | |
104 | c-file-style: "gnu" | |
105 | End: | |
106 | */ |