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1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
20e6290e JB |
45 | #include "alist.h" |
46 | #include "eval.h" | |
0f2d19dd | 47 | |
20e6290e | 48 | #include "procprop.h" |
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49 | \f |
50 | ||
51 | static SCM | |
52 | scm_stand_in_scm_proc(proc) | |
53 | SCM proc; | |
54 | { | |
55 | SCM answer; | |
56 | answer = scm_assoc (proc, scm_stand_in_procs); | |
57 | if (answer == SCM_BOOL_F) | |
58 | { | |
59 | answer = scm_closure (scm_listify (SCM_EOL, SCM_BOOL_F, SCM_UNDEFINED), | |
60 | SCM_EOL); | |
61 | scm_stand_in_procs = scm_cons (scm_cons (proc, answer), | |
62 | scm_stand_in_procs); | |
63 | } | |
64 | else | |
65 | answer = SCM_CDR (answer); | |
66 | return answer; | |
67 | } | |
68 | ||
69 | SCM_PROC(s_procedure_properties, "procedure-properties", 1, 0, 0, scm_procedure_properties); | |
1cc91f1b | 70 | |
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71 | SCM |
72 | scm_procedure_properties (proc) | |
73 | SCM proc; | |
0f2d19dd | 74 | { |
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75 | SCM_ASSERT (SCM_NFALSEP (scm_procedure_p (proc)), |
76 | proc, SCM_ARG1, s_procedure_properties); | |
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77 | if (!(SCM_NIMP (proc) && SCM_CLOSUREP (proc))) |
78 | proc = scm_stand_in_scm_proc(proc); | |
79 | return SCM_PROCPROPS (proc); | |
80 | } | |
81 | ||
82 | SCM_PROC(s_set_procedure_properties_x, "set-procedure-properties!", 2, 0, 0, scm_set_procedure_properties_x); | |
1cc91f1b | 83 | |
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84 | SCM |
85 | scm_set_procedure_properties_x (proc, new_val) | |
86 | SCM proc; | |
87 | SCM new_val; | |
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88 | { |
89 | if (!(SCM_NIMP (proc) && SCM_CLOSUREP (proc))) | |
90 | proc = scm_stand_in_scm_proc(proc); | |
91 | SCM_ASSERT (SCM_NIMP (proc) && SCM_CLOSUREP (proc), proc, SCM_ARG1, s_set_procedure_properties_x); | |
a6c64c3c | 92 | SCM_SETPROCPROPS (proc, new_val); |
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93 | return SCM_UNSPECIFIED; |
94 | } | |
95 | ||
96 | SCM_PROC(s_procedure_property, "procedure-property", 2, 0, 0, scm_procedure_property); | |
1cc91f1b | 97 | |
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98 | SCM |
99 | scm_procedure_property (p, k) | |
100 | SCM p; | |
101 | SCM k; | |
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102 | { |
103 | SCM assoc; | |
104 | if (!(SCM_NIMP (p) && SCM_CLOSUREP (p))) | |
105 | p = scm_stand_in_scm_proc(p); | |
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106 | SCM_ASSERT (SCM_NFALSEP (scm_procedure_p (p)), |
107 | p, SCM_ARG1, s_procedure_property); | |
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108 | assoc = scm_sloppy_assq (k, SCM_PROCPROPS (p)); |
109 | return (SCM_NIMP (assoc) ? SCM_CDR (assoc) : SCM_BOOL_F); | |
110 | } | |
111 | ||
112 | SCM_PROC(s_set_procedure_property_x, "set-procedure-property!", 3, 0, 0, scm_set_procedure_property_x); | |
1cc91f1b | 113 | |
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114 | SCM |
115 | scm_set_procedure_property_x (p, k, v) | |
116 | SCM p; | |
117 | SCM k; | |
118 | SCM v; | |
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119 | { |
120 | SCM assoc; | |
121 | if (!(SCM_NIMP (p) && SCM_CLOSUREP (p))) | |
122 | p = scm_stand_in_scm_proc(p); | |
123 | SCM_ASSERT (SCM_NIMP (p) && SCM_CLOSUREP (p), p, SCM_ARG1, s_set_procedure_property_x); | |
124 | assoc = scm_sloppy_assq (k, SCM_PROCPROPS (p)); | |
125 | if (SCM_NIMP (assoc)) | |
126 | SCM_SETCDR (assoc, v); | |
127 | else | |
a6c64c3c | 128 | SCM_SETPROCPROPS (p, scm_acons (k, v, SCM_PROCPROPS (p))); |
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129 | return SCM_UNSPECIFIED; |
130 | } | |
131 | ||
132 | \f | |
133 | ||
1cc91f1b | 134 | |
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135 | void |
136 | scm_init_procprop () | |
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137 | { |
138 | #include "procprop.x" | |
139 | } | |
140 |