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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" | |
45 | ||
20e6290e | 46 | #include "procs.h" |
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47 | \f |
48 | ||
49 | ||
50 | /* {Procedures} | |
51 | */ | |
52 | ||
1cc91f1b | 53 | |
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54 | SCM |
55 | scm_make_subr_opt (name, type, fcn, set) | |
56 | char *name; | |
57 | int type; | |
58 | SCM (*fcn) (); | |
59 | int set; | |
0f2d19dd JB |
60 | { |
61 | SCM symcell; | |
62 | long tmp; | |
63 | register SCM z; | |
64 | symcell = scm_sysintern (name, SCM_UNDEFINED); | |
65 | tmp = ((((SCM_CELLPTR) (SCM_CAR (symcell))) - scm_heap_org) << 8); | |
66 | if ((tmp >> 8) != ((SCM_CELLPTR) (SCM_CAR (symcell)) - scm_heap_org)) | |
67 | tmp = 0; | |
68 | SCM_NEWCELL (z); | |
69 | SCM_SUBRF (z) = fcn; | |
a6c64c3c | 70 | SCM_SETCAR (z, tmp + type); |
0f2d19dd | 71 | if (set) |
a6c64c3c | 72 | SCM_SETCDR (symcell, z); |
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73 | return z; |
74 | } | |
75 | ||
76 | ||
1cc91f1b | 77 | |
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78 | SCM |
79 | scm_make_subr (name, type, fcn) | |
80 | char *name; | |
81 | int type; | |
82 | SCM (*fcn) (); | |
0f2d19dd JB |
83 | { |
84 | return scm_make_subr_opt (name, type, fcn, 1); | |
85 | } | |
86 | ||
87 | #ifdef CCLO | |
1cc91f1b | 88 | |
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89 | SCM |
90 | scm_makcclo (proc, len) | |
91 | SCM proc; | |
92 | long len; | |
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93 | { |
94 | SCM s; | |
95 | SCM_NEWCELL (s); | |
96 | SCM_DEFER_INTS; | |
97 | SCM_SETCHARS (s, scm_must_malloc (len * sizeof (SCM), "compiled-closure")); | |
98 | SCM_SETLENGTH (s, len, scm_tc7_cclo); | |
99 | while (--len) | |
100 | SCM_VELTS (s)[len] = SCM_UNSPECIFIED; | |
101 | SCM_CCLO_SUBR (s) = proc; | |
102 | SCM_ALLOW_INTS; | |
103 | return s; | |
104 | } | |
105 | #endif | |
106 | ||
107 | ||
108 | ||
109 | SCM_PROC(s_procedure_p, "procedure?", 1, 0, 0, scm_procedure_p); | |
1cc91f1b | 110 | |
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111 | SCM |
112 | scm_procedure_p (obj) | |
113 | SCM obj; | |
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114 | { |
115 | if (SCM_NIMP (obj)) | |
116 | switch (SCM_TYP7 (obj)) | |
117 | { | |
118 | case scm_tcs_closures: | |
119 | case scm_tc7_contin: | |
120 | case scm_tcs_subrs: | |
121 | #ifdef CCLO | |
122 | case scm_tc7_cclo: | |
123 | #endif | |
124 | return SCM_BOOL_T; | |
125 | default: | |
126 | return SCM_BOOL_F; | |
127 | } | |
128 | return SCM_BOOL_F; | |
129 | } | |
130 | ||
ecdb5eb2 MD |
131 | SCM_PROC(s_closure_p, "closure?", 1, 0, 0, scm_closure_p); |
132 | ||
133 | SCM | |
134 | scm_closure_p (obj) | |
135 | SCM obj; | |
136 | { | |
137 | if (SCM_NIMP (obj)) | |
138 | switch (SCM_TYP7 (obj)) | |
139 | { | |
140 | case scm_tcs_closures: | |
141 | return SCM_BOOL_T; | |
142 | default: ; | |
143 | } | |
144 | return SCM_BOOL_F; | |
145 | } | |
146 | ||
44bd53b9 MD |
147 | #ifdef __STDC__ |
148 | SCM | |
149 | scm_thunk_p (SCM obj) | |
150 | #else | |
151 | SCM | |
152 | scm_thunk_p (obj) | |
153 | SCM obj; | |
154 | #endif | |
155 | { | |
156 | if (SCM_NIMP (obj)) | |
157 | switch (SCM_TYP7 (obj)) | |
158 | { | |
159 | case scm_tcs_closures: | |
160 | if (SCM_NULLP (SCM_CAR (SCM_CODE (obj)))) | |
161 | return SCM_BOOL_T; | |
162 | case scm_tc7_subr_0: | |
163 | case scm_tc7_subr_1o: | |
164 | case scm_tc7_lsubr: | |
165 | case scm_tc7_rpsubr: | |
166 | case scm_tc7_asubr: | |
167 | #ifdef CCLO | |
168 | case scm_tc7_cclo: | |
169 | #endif | |
170 | return SCM_BOOL_T; | |
171 | default: | |
172 | ; | |
173 | } | |
174 | return SCM_BOOL_F; | |
175 | } | |
176 | ||
0f2d19dd | 177 | |
1cc91f1b | 178 | |
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179 | void |
180 | scm_init_iprocs(subra, type) | |
181 | scm_iproc *subra; | |
182 | int type; | |
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183 | { |
184 | for(;subra->scm_string; subra++) | |
185 | scm_make_subr(subra->scm_string, | |
186 | type, | |
187 | subra->cproc); | |
188 | } | |
189 | ||
190 | ||
191 | ||
192 | ||
1cc91f1b | 193 | |
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194 | void |
195 | scm_init_procs () | |
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196 | { |
197 | #include "procs.x" | |
198 | } | |
199 |