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510ca126 | 1 | /* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc. |
17e90c5e | 2 | * |
560b9c25 | 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. | |
17e90c5e | 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 | |
560b9c25 AW |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
17e90c5e | 12 | * |
560b9c25 AW |
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 | |
560b9c25 | 17 | */ |
17e90c5e | 18 | |
13c47753 AW |
19 | #if HAVE_CONFIG_H |
20 | # include <config.h> | |
21 | #endif | |
22 | ||
17e90c5e | 23 | #include <string.h> |
560b9c25 | 24 | #include "_scm.h" |
17e90c5e | 25 | #include "instructions.h" |
8e367074 | 26 | #include "modules.h" |
17e90c5e | 27 | #include "programs.h" |
6f6f0dac LC |
28 | #include "procprop.h" /* scm_sym_name */ |
29 | #include "srcprop.h" /* scm_sym_filename */ | |
17e90c5e KN |
30 | #include "vm.h" |
31 | ||
32 | \f | |
e6fea618 | 33 | static SCM write_program = SCM_BOOL_F; |
17e90c5e | 34 | |
53e28ed9 | 35 | SCM_DEFINE (scm_make_program, "make-program", 1, 2, 0, |
57ab0671 | 36 | (SCM objcode, SCM objtable, SCM free_variables), |
53e28ed9 AW |
37 | "") |
38 | #define FUNC_NAME s_scm_make_program | |
17e90c5e | 39 | { |
53e28ed9 AW |
40 | SCM_VALIDATE_OBJCODE (1, objcode); |
41 | if (SCM_UNLIKELY (SCM_UNBNDP (objtable))) | |
42 | objtable = SCM_BOOL_F; | |
43 | else if (scm_is_true (objtable)) | |
44 | SCM_VALIDATE_VECTOR (2, objtable); | |
20d47c39 | 45 | |
6f16379e AW |
46 | if (SCM_UNBNDP (free_variables) || scm_is_false (free_variables)) |
47 | { | |
48 | SCM ret = scm_words (scm_tc7_program, 3); | |
49 | SCM_SET_CELL_OBJECT_1 (ret, objcode); | |
50 | SCM_SET_CELL_OBJECT_2 (ret, objtable); | |
51 | return ret; | |
52 | } | |
53 | else | |
54 | { | |
55 | size_t i, len; | |
56 | SCM ret; | |
57 | SCM_VALIDATE_VECTOR (3, free_variables); | |
58 | len = scm_c_vector_length (free_variables); | |
59 | if (SCM_UNLIKELY (len >> 16)) | |
60 | SCM_OUT_OF_RANGE (3, free_variables); | |
61 | ret = scm_words (scm_tc7_program | (len<<16), 3 + len); | |
62 | SCM_SET_CELL_OBJECT_1 (ret, objcode); | |
63 | SCM_SET_CELL_OBJECT_2 (ret, objtable); | |
64 | for (i = 0; i < len; i++) | |
65 | SCM_SET_CELL_OBJECT (ret, 3+i, | |
66 | SCM_SIMPLE_VECTOR_REF (free_variables, i)); | |
67 | return ret; | |
68 | } | |
17e90c5e KN |
69 | } |
70 | #undef FUNC_NAME | |
71 | ||
510ca126 AW |
72 | SCM_DEFINE (scm_make_rtl_program, "make-rtl-program", 1, 2, 0, |
73 | (SCM bytevector, SCM byte_offset, SCM free_variables), | |
74 | "") | |
75 | #define FUNC_NAME s_scm_make_rtl_program | |
76 | { | |
77 | scm_t_uint8 *code; | |
78 | scm_t_uint32 offset; | |
79 | ||
80 | if (!scm_is_bytevector (bytevector)) | |
81 | scm_wrong_type_arg (FUNC_NAME, 1, bytevector); | |
82 | if (SCM_UNBNDP (byte_offset)) | |
83 | offset = 0; | |
84 | else | |
85 | { | |
86 | offset = scm_to_uint32 (byte_offset); | |
87 | if (offset > SCM_BYTEVECTOR_LENGTH (bytevector)) | |
88 | SCM_OUT_OF_RANGE (2, byte_offset); | |
89 | } | |
90 | ||
91 | code = (scm_t_uint8*) SCM_BYTEVECTOR_CONTENTS (bytevector) + offset; | |
92 | if (((scm_t_uintptr) code) % 4) | |
93 | SCM_OUT_OF_RANGE (2, byte_offset); | |
94 | ||
95 | if (SCM_UNBNDP (free_variables) || scm_is_false (free_variables)) | |
96 | return scm_cell (scm_tc7_rtl_program, (scm_t_bits) code); | |
97 | else | |
98 | abort (); | |
99 | } | |
100 | #undef FUNC_NAME | |
101 | ||
102 | SCM_DEFINE (scm_rtl_program_code, "rtl-program-code", 1, 0, 0, | |
103 | (SCM program), | |
104 | "") | |
105 | #define FUNC_NAME s_scm_rtl_program_code | |
106 | { | |
107 | SCM_VALIDATE_RTL_PROGRAM (1, program); | |
108 | ||
109 | /* FIXME: we need scm_from_uintptr (). */ | |
110 | return scm_from_size_t ((size_t) SCM_RTL_PROGRAM_CODE (program)); | |
111 | } | |
112 | #undef FUNC_NAME | |
113 | ||
e65f80af AW |
114 | SCM |
115 | scm_i_rtl_program_name (SCM program) | |
510ca126 | 116 | { |
e65f80af AW |
117 | static SCM rtl_program_name = SCM_BOOL_F; |
118 | ||
27337b63 AW |
119 | if (SCM_PRIMITIVE_P (program)) |
120 | return SCM_SUBR_NAME (program); | |
121 | ||
e65f80af AW |
122 | if (scm_is_false (rtl_program_name) && scm_module_system_booted_p) |
123 | rtl_program_name = | |
124 | scm_c_private_variable ("system vm program", "rtl-program-name"); | |
125 | ||
126 | return scm_call_1 (scm_variable_ref (rtl_program_name), program); | |
510ca126 AW |
127 | } |
128 | ||
bf8328ec AW |
129 | SCM |
130 | scm_i_rtl_program_documentation (SCM program) | |
131 | { | |
132 | static SCM rtl_program_documentation = SCM_BOOL_F; | |
133 | ||
27337b63 AW |
134 | if (SCM_PRIMITIVE_P (program)) |
135 | return SCM_BOOL_F; | |
136 | ||
bf8328ec AW |
137 | if (scm_is_false (rtl_program_documentation) && scm_module_system_booted_p) |
138 | rtl_program_documentation = | |
139 | scm_c_private_variable ("system vm program", | |
140 | "rtl-program-documentation"); | |
141 | ||
142 | return scm_call_1 (scm_variable_ref (rtl_program_documentation), program); | |
143 | } | |
144 | ||
c4c098e3 AW |
145 | SCM |
146 | scm_i_rtl_program_properties (SCM program) | |
147 | { | |
148 | static SCM rtl_program_properties = SCM_BOOL_F; | |
149 | ||
27337b63 AW |
150 | if (SCM_PRIMITIVE_P (program)) |
151 | { | |
152 | SCM name = scm_i_rtl_program_name (program); | |
153 | if (scm_is_false (name)) | |
154 | return SCM_EOL; | |
155 | return scm_acons (scm_sym_name, name, SCM_EOL); | |
156 | } | |
157 | ||
c4c098e3 AW |
158 | if (scm_is_false (rtl_program_properties) && scm_module_system_booted_p) |
159 | rtl_program_properties = | |
160 | scm_c_private_variable ("system vm program", "rtl-program-properties"); | |
161 | ||
162 | return scm_call_1 (scm_variable_ref (rtl_program_properties), program); | |
163 | } | |
164 | ||
2fb924f6 AW |
165 | void |
166 | scm_i_program_print (SCM program, SCM port, scm_print_state *pstate) | |
e6fea618 | 167 | { |
0ba8bb71 AW |
168 | static int print_error = 0; |
169 | ||
5c8cefe5 | 170 | if (scm_is_false (write_program) && scm_module_system_booted_p) |
eb2bc00f AW |
171 | write_program = scm_c_private_variable ("system vm program", |
172 | "write-program"); | |
e6fea618 | 173 | |
1d1cae0e AW |
174 | if (SCM_PROGRAM_IS_CONTINUATION (program)) |
175 | { | |
176 | /* twingliness */ | |
0607ebbf | 177 | scm_puts_unlocked ("#<continuation ", port); |
76e38162 | 178 | scm_uintprint (SCM_UNPACK (program), 16, port); |
0607ebbf | 179 | scm_putc_unlocked ('>', port); |
1d1cae0e | 180 | } |
5c606217 | 181 | else if (SCM_PROGRAM_IS_PARTIAL_CONTINUATION (program)) |
2150e9a8 AW |
182 | { |
183 | /* twingliness */ | |
0607ebbf | 184 | scm_puts_unlocked ("#<partial-continuation ", port); |
2150e9a8 | 185 | scm_uintprint (SCM_UNPACK (program), 16, port); |
0607ebbf | 186 | scm_putc_unlocked ('>', port); |
2150e9a8 | 187 | } |
1d1cae0e | 188 | else if (scm_is_false (write_program) || print_error) |
2fb924f6 | 189 | { |
e65f80af AW |
190 | if (SCM_RTL_PROGRAM_P (program)) |
191 | { | |
192 | scm_puts_unlocked ("#<rtl-program ", port); | |
193 | scm_uintprint (SCM_UNPACK (program), 16, port); | |
194 | scm_putc_unlocked (' ', port); | |
195 | scm_uintprint ((scm_t_uintptr) SCM_RTL_PROGRAM_CODE (program), 16, port); | |
196 | scm_putc_unlocked ('>', port); | |
197 | } | |
198 | else | |
199 | { | |
200 | scm_puts_unlocked ("#<program ", port); | |
201 | scm_uintprint (SCM_UNPACK (program), 16, port); | |
202 | scm_putc_unlocked ('>', port); | |
203 | } | |
2fb924f6 AW |
204 | } |
205 | else | |
206 | { | |
207 | print_error = 1; | |
208 | scm_call_2 (SCM_VARIABLE_REF (write_program), program, port); | |
209 | print_error = 0; | |
210 | } | |
e6fea618 AW |
211 | } |
212 | ||
17e90c5e KN |
213 | \f |
214 | /* | |
215 | * Scheme interface | |
216 | */ | |
217 | ||
218 | SCM_DEFINE (scm_program_p, "program?", 1, 0, 0, | |
219 | (SCM obj), | |
220 | "") | |
221 | #define FUNC_NAME s_scm_program_p | |
222 | { | |
5c8cefe5 | 223 | return scm_from_bool (SCM_PROGRAM_P (obj)); |
17e90c5e KN |
224 | } |
225 | #undef FUNC_NAME | |
226 | ||
510ca126 AW |
227 | SCM_DEFINE (scm_rtl_program_p, "rtl-program?", 1, 0, 0, |
228 | (SCM obj), | |
229 | "") | |
230 | #define FUNC_NAME s_scm_rtl_program_p | |
231 | { | |
232 | return scm_from_bool (SCM_RTL_PROGRAM_P (obj)); | |
233 | } | |
234 | #undef FUNC_NAME | |
235 | ||
27337b63 AW |
236 | SCM_DEFINE (scm_primitive_p, "primitive?", 1, 0, 0, |
237 | (SCM obj), | |
238 | "") | |
239 | #define FUNC_NAME s_scm_primitive_p | |
240 | { | |
241 | return scm_from_bool (SCM_PRIMITIVE_P (obj)); | |
242 | } | |
243 | #undef FUNC_NAME | |
244 | ||
245 | SCM_DEFINE (scm_primitive_call_ip, "primitive-call-ip", 1, 0, 0, | |
246 | (SCM prim), | |
247 | "") | |
248 | #define FUNC_NAME s_scm_primitive_p | |
249 | { | |
250 | SCM_MAKE_VALIDATE (1, prim, PRIMITIVE_P); | |
251 | ||
252 | return scm_from_int (scm_i_primitive_call_ip (prim)); | |
253 | } | |
254 | #undef FUNC_NAME | |
255 | ||
ac99cb0c KN |
256 | SCM_DEFINE (scm_program_base, "program-base", 1, 0, 0, |
257 | (SCM program), | |
258 | "") | |
259 | #define FUNC_NAME s_scm_program_base | |
260 | { | |
3dbbe28d LC |
261 | const struct scm_objcode *c_objcode; |
262 | ||
ac99cb0c KN |
263 | SCM_VALIDATE_PROGRAM (1, program); |
264 | ||
3dbbe28d | 265 | c_objcode = SCM_PROGRAM_DATA (program); |
3d27ef4b | 266 | return scm_from_unsigned_integer ((scm_t_bits) SCM_C_OBJCODE_BASE (c_objcode)); |
ac99cb0c KN |
267 | } |
268 | #undef FUNC_NAME | |
269 | ||
53e28ed9 AW |
270 | SCM_DEFINE (scm_program_objects, "program-objects", 1, 0, 0, |
271 | (SCM program), | |
272 | "") | |
273 | #define FUNC_NAME s_scm_program_objects | |
274 | { | |
275 | SCM_VALIDATE_PROGRAM (1, program); | |
276 | return SCM_PROGRAM_OBJTABLE (program); | |
277 | } | |
278 | #undef FUNC_NAME | |
279 | ||
280 | SCM_DEFINE (scm_program_module, "program-module", 1, 0, 0, | |
281 | (SCM program), | |
282 | "") | |
283 | #define FUNC_NAME s_scm_program_module | |
284 | { | |
7884975a | 285 | SCM objs, mod; |
53e28ed9 AW |
286 | SCM_VALIDATE_PROGRAM (1, program); |
287 | objs = SCM_PROGRAM_OBJTABLE (program); | |
7884975a AW |
288 | /* If a program is the result of compiling GLIL to assembly, then if |
289 | it has an objtable, the first entry will be a module. But some | |
290 | programs are hand-coded trampolines, like boot programs and | |
291 | primitives and the like. So if a program happens to have a | |
292 | non-module in the first slot of the objtable, assume that it is | |
293 | such a trampoline, and just return #f for the module. */ | |
294 | mod = scm_is_true (objs) ? scm_c_vector_ref (objs, 0) : SCM_BOOL_F; | |
295 | return SCM_MODULEP (mod) ? mod : SCM_BOOL_F; | |
53e28ed9 AW |
296 | } |
297 | #undef FUNC_NAME | |
298 | ||
ac99cb0c KN |
299 | SCM_DEFINE (scm_program_meta, "program-meta", 1, 0, 0, |
300 | (SCM program), | |
301 | "") | |
302 | #define FUNC_NAME s_scm_program_meta | |
17e90c5e | 303 | { |
ac47d5f6 AW |
304 | SCM metaobj; |
305 | ||
17e90c5e | 306 | SCM_VALIDATE_PROGRAM (1, program); |
ac47d5f6 AW |
307 | |
308 | metaobj = scm_objcode_meta (SCM_PROGRAM_OBJCODE (program)); | |
309 | if (scm_is_true (metaobj)) | |
31a26df2 AW |
310 | return scm_make_program (metaobj, SCM_PROGRAM_OBJTABLE (program), |
311 | SCM_BOOL_F); | |
ac47d5f6 AW |
312 | else |
313 | return SCM_BOOL_F; | |
17e90c5e KN |
314 | } |
315 | #undef FUNC_NAME | |
316 | ||
e311f5fa AW |
317 | SCM_DEFINE (scm_program_bindings, "program-bindings", 1, 0, 0, |
318 | (SCM program), | |
319 | "") | |
320 | #define FUNC_NAME s_scm_program_bindings | |
9a9f6487 | 321 | { |
e311f5fa AW |
322 | SCM meta; |
323 | ||
324 | SCM_VALIDATE_PROGRAM (1, program); | |
9a9f6487 | 325 | |
53e28ed9 | 326 | meta = scm_program_meta (program); |
2fda0242 | 327 | if (scm_is_false (meta)) |
9a9f6487 | 328 | return SCM_BOOL_F; |
e311f5fa AW |
329 | |
330 | return scm_car (scm_call_0 (meta)); | |
331 | } | |
332 | #undef FUNC_NAME | |
333 | ||
7c540297 | 334 | SCM_DEFINE (scm_program_sources, "%program-sources", 1, 0, 0, |
e311f5fa AW |
335 | (SCM program), |
336 | "") | |
337 | #define FUNC_NAME s_scm_program_sources | |
338 | { | |
028e3d06 | 339 | SCM meta, sources, ret, filename; |
e311f5fa AW |
340 | |
341 | SCM_VALIDATE_PROGRAM (1, program); | |
342 | ||
343 | meta = scm_program_meta (program); | |
9a9f6487 | 344 | if (scm_is_false (meta)) |
e311f5fa AW |
345 | return SCM_EOL; |
346 | ||
028e3d06 AW |
347 | filename = SCM_BOOL_F; |
348 | ret = SCM_EOL; | |
349 | for (sources = scm_cadr (scm_call_0 (meta)); !scm_is_null (sources); | |
350 | sources = scm_cdr (sources)) | |
351 | { | |
352 | SCM x = scm_car (sources); | |
353 | if (scm_is_pair (x)) | |
354 | { | |
355 | if (scm_is_number (scm_car (x))) | |
356 | { | |
357 | SCM addr = scm_car (x); | |
358 | ret = scm_acons (addr, scm_cons (filename, scm_cdr (x)), | |
359 | ret); | |
360 | } | |
361 | else if (scm_is_eq (scm_car (x), scm_sym_filename)) | |
362 | filename = scm_cdr (x); | |
363 | } | |
364 | } | |
365 | return scm_reverse_x (ret, SCM_UNDEFINED); | |
e311f5fa AW |
366 | } |
367 | #undef FUNC_NAME | |
368 | ||
6c6a4439 AW |
369 | SCM_DEFINE (scm_program_arities, "program-arities", 1, 0, 0, |
370 | (SCM program), | |
371 | "") | |
372 | #define FUNC_NAME s_scm_program_arities | |
373 | { | |
374 | SCM meta; | |
375 | ||
376 | SCM_VALIDATE_PROGRAM (1, program); | |
377 | ||
378 | meta = scm_program_meta (program); | |
379 | if (scm_is_false (meta)) | |
380 | return SCM_BOOL_F; | |
381 | ||
382 | return scm_caddr (scm_call_0 (meta)); | |
383 | } | |
384 | #undef FUNC_NAME | |
385 | ||
07e424b7 AW |
386 | SCM |
387 | scm_i_program_properties (SCM program) | |
388 | #define FUNC_NAME "%program-properties" | |
e311f5fa AW |
389 | { |
390 | SCM meta; | |
391 | ||
392 | SCM_VALIDATE_PROGRAM (1, program); | |
393 | ||
394 | meta = scm_program_meta (program); | |
395 | if (scm_is_false (meta)) | |
396 | return SCM_EOL; | |
397 | ||
6c6a4439 | 398 | return scm_cdddr (scm_call_0 (meta)); |
e311f5fa AW |
399 | } |
400 | #undef FUNC_NAME | |
401 | ||
7c540297 AW |
402 | SCM |
403 | scm_program_source (SCM program, SCM ip, SCM sources) | |
b262b74b | 404 | { |
7c540297 | 405 | static SCM program_source = SCM_BOOL_F; |
b262b74b | 406 | |
7c540297 AW |
407 | if (scm_is_false (program_source)) { |
408 | if (!scm_module_system_booted_p) | |
409 | return SCM_BOOL_F; | |
410 | ||
411 | program_source = | |
412 | scm_c_private_variable ("system vm program", "program-source"); | |
413 | } | |
b262b74b | 414 | |
b262b74b | 415 | if (SCM_UNBNDP (sources)) |
7c540297 AW |
416 | return scm_call_2 (scm_variable_ref (program_source), program, ip); |
417 | else | |
418 | return scm_call_3 (scm_variable_ref (program_source), program, ip, sources); | |
028e3d06 | 419 | } |
028e3d06 | 420 | |
6f16379e | 421 | SCM_DEFINE (scm_program_num_free_variables, "program-num-free-variables", 1, 0, 0, |
17e90c5e KN |
422 | (SCM program), |
423 | "") | |
6f16379e AW |
424 | #define FUNC_NAME s_scm_program_num_free_variables |
425 | { | |
ee0a2b51 AW |
426 | if (SCM_RTL_PROGRAM_P (program)) { |
427 | return scm_from_ulong (SCM_RTL_PROGRAM_NUM_FREE_VARIABLES (program)); | |
428 | } | |
429 | ||
6f16379e AW |
430 | SCM_VALIDATE_PROGRAM (1, program); |
431 | return scm_from_ulong (SCM_PROGRAM_NUM_FREE_VARIABLES (program)); | |
432 | } | |
433 | #undef FUNC_NAME | |
434 | ||
435 | SCM_DEFINE (scm_program_free_variable_ref, "program-free-variable-ref", 2, 0, 0, | |
436 | (SCM program, SCM i), | |
437 | "") | |
438 | #define FUNC_NAME s_scm_program_free_variable_ref | |
439 | { | |
440 | unsigned long idx; | |
ee0a2b51 AW |
441 | |
442 | if (SCM_RTL_PROGRAM_P (program)) { | |
443 | SCM_VALIDATE_ULONG_COPY (2, i, idx); | |
444 | if (idx >= SCM_RTL_PROGRAM_NUM_FREE_VARIABLES (program)) | |
445 | SCM_OUT_OF_RANGE (2, i); | |
446 | return SCM_RTL_PROGRAM_FREE_VARIABLE_REF (program, idx); | |
447 | } | |
448 | ||
6f16379e AW |
449 | SCM_VALIDATE_PROGRAM (1, program); |
450 | SCM_VALIDATE_ULONG_COPY (2, i, idx); | |
451 | if (idx >= SCM_PROGRAM_NUM_FREE_VARIABLES (program)) | |
452 | SCM_OUT_OF_RANGE (2, i); | |
453 | return SCM_PROGRAM_FREE_VARIABLE_REF (program, idx); | |
454 | } | |
455 | #undef FUNC_NAME | |
456 | ||
457 | SCM_DEFINE (scm_program_free_variable_set_x, "program-free-variable-set!", 3, 0, 0, | |
458 | (SCM program, SCM i, SCM x), | |
459 | "") | |
460 | #define FUNC_NAME s_scm_program_free_variable_set_x | |
62082959 | 461 | { |
6f16379e | 462 | unsigned long idx; |
ee0a2b51 AW |
463 | |
464 | if (SCM_RTL_PROGRAM_P (program)) { | |
465 | SCM_VALIDATE_ULONG_COPY (2, i, idx); | |
466 | if (idx >= SCM_RTL_PROGRAM_NUM_FREE_VARIABLES (program)) | |
467 | SCM_OUT_OF_RANGE (2, i); | |
468 | SCM_RTL_PROGRAM_FREE_VARIABLE_SET (program, idx, x); | |
469 | return SCM_UNSPECIFIED; | |
470 | } | |
471 | ||
62082959 | 472 | SCM_VALIDATE_PROGRAM (1, program); |
6f16379e AW |
473 | SCM_VALIDATE_ULONG_COPY (2, i, idx); |
474 | if (idx >= SCM_PROGRAM_NUM_FREE_VARIABLES (program)) | |
475 | SCM_OUT_OF_RANGE (2, i); | |
476 | SCM_PROGRAM_FREE_VARIABLE_SET (program, idx, x); | |
477 | return SCM_UNSPECIFIED; | |
62082959 LC |
478 | } |
479 | #undef FUNC_NAME | |
480 | ||
53e28ed9 | 481 | SCM_DEFINE (scm_program_objcode, "program-objcode", 1, 0, 0, |
17e90c5e | 482 | (SCM program), |
53e28ed9 AW |
483 | "Return a @var{program}'s object code.") |
484 | #define FUNC_NAME s_scm_program_objcode | |
17e90c5e KN |
485 | { |
486 | SCM_VALIDATE_PROGRAM (1, program); | |
fa19602c | 487 | |
53e28ed9 | 488 | return SCM_PROGRAM_OBJCODE (program); |
17e90c5e KN |
489 | } |
490 | #undef FUNC_NAME | |
491 | ||
cb2ce548 AW |
492 | /* procedure-minimum-arity support. */ |
493 | static void | |
494 | parse_arity (SCM arity, int *req, int *opt, int *rest) | |
56164a5a | 495 | { |
cb2ce548 | 496 | SCM x = scm_cddr (arity); |
56164a5a | 497 | |
56164a5a AW |
498 | if (scm_is_pair (x)) |
499 | { | |
500 | *req = scm_to_int (scm_car (x)); | |
501 | x = scm_cdr (x); | |
502 | if (scm_is_pair (x)) | |
503 | { | |
504 | *opt = scm_to_int (scm_car (x)); | |
505 | x = scm_cdr (x); | |
506 | if (scm_is_pair (x)) | |
507 | *rest = scm_is_true (scm_car (x)); | |
508 | else | |
509 | *rest = 0; | |
510 | } | |
511 | else | |
512 | *opt = *rest = 0; | |
513 | } | |
514 | else | |
515 | *req = *opt = *rest = 0; | |
cb2ce548 AW |
516 | } |
517 | ||
eb2bc00f AW |
518 | static int |
519 | scm_i_rtl_program_minimum_arity (SCM program, int *req, int *opt, int *rest) | |
520 | { | |
521 | static SCM rtl_program_minimum_arity = SCM_BOOL_F; | |
522 | SCM l; | |
523 | ||
27337b63 AW |
524 | if (SCM_PRIMITIVE_P (program)) |
525 | return scm_i_primitive_arity (program, req, opt, rest); | |
526 | ||
eb2bc00f AW |
527 | if (scm_is_false (rtl_program_minimum_arity) && scm_module_system_booted_p) |
528 | rtl_program_minimum_arity = | |
081cf910 | 529 | scm_c_private_variable ("system vm program", |
eb2bc00f AW |
530 | "rtl-program-minimum-arity"); |
531 | ||
532 | l = scm_call_1 (scm_variable_ref (rtl_program_minimum_arity), program); | |
533 | if (scm_is_false (l)) | |
534 | return 0; | |
535 | ||
536 | *req = scm_to_int (scm_car (l)); | |
537 | *opt = scm_to_int (scm_cadr (l)); | |
538 | *rest = scm_is_true (scm_caddr (l)); | |
539 | ||
540 | return 1; | |
541 | } | |
542 | ||
cb2ce548 AW |
543 | int |
544 | scm_i_program_arity (SCM program, int *req, int *opt, int *rest) | |
545 | { | |
546 | SCM arities; | |
547 | ||
eb2bc00f AW |
548 | if (SCM_RTL_PROGRAM_P (program)) |
549 | return scm_i_rtl_program_minimum_arity (program, req, opt, rest); | |
550 | ||
cb2ce548 AW |
551 | arities = scm_program_arities (program); |
552 | if (!scm_is_pair (arities)) | |
553 | return 0; | |
554 | ||
555 | parse_arity (scm_car (arities), req, opt, rest); | |
556 | arities = scm_cdr (arities); | |
557 | ||
558 | for (; scm_is_pair (arities); arities = scm_cdr (arities)) | |
559 | { | |
560 | int thisreq, thisopt, thisrest; | |
561 | ||
562 | parse_arity (scm_car (arities), &thisreq, &thisopt, &thisrest); | |
563 | ||
564 | if (thisreq < *req | |
565 | || (thisreq == *req | |
566 | && ((thisrest && (!*rest || thisopt > *opt)) | |
567 | || (!thisrest && !*rest && thisopt > *opt)))) | |
568 | { | |
569 | *req = thisreq; | |
570 | *opt = thisopt; | |
571 | *rest = thisrest; | |
572 | } | |
573 | } | |
574 | ||
56164a5a AW |
575 | return 1; |
576 | } | |
fa19602c | 577 | |
17e90c5e | 578 | \f |
56164a5a | 579 | |
17e90c5e | 580 | void |
07e56b27 | 581 | scm_bootstrap_programs (void) |
17e90c5e | 582 | { |
44602b08 AW |
583 | scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION, |
584 | "scm_init_programs", | |
60ae5ca2 | 585 | (scm_t_extension_init_func)scm_init_programs, NULL); |
07e56b27 | 586 | } |
17e90c5e | 587 | |
07e56b27 AW |
588 | void |
589 | scm_init_programs (void) | |
590 | { | |
17e90c5e | 591 | #ifndef SCM_MAGIC_SNARFER |
aeeff258 | 592 | #include "libguile/programs.x" |
17e90c5e KN |
593 | #endif |
594 | } | |
595 | ||
596 | /* | |
597 | Local Variables: | |
598 | c-file-style: "gnu" | |
599 | End: | |
600 | */ |