Commit | Line | Data |
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747bd534 AW |
1 | /* Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004, |
2 | * 2005,2006,2007,2008,2009,2010,2011,2012,2013 | |
434f2f7a | 3 | * Free Software Foundation, Inc. |
0f2d19dd | 4 | * |
73be1d9e | 5 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
6 | * modify it under the terms of the GNU Lesser General Public License |
7 | * as published by the Free Software Foundation; either version 3 of | |
8 | * the License, or (at your option) any later version. | |
0f2d19dd | 9 | * |
53befeb7 NJ |
10 | * This library is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * Lesser General Public License for more details. | |
0f2d19dd | 14 | * |
73be1d9e MV |
15 | * You should have received a copy of the GNU Lesser General Public |
16 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
18 | * 02110-1301 USA | |
73be1d9e | 19 | */ |
1bbd0b84 | 20 | |
0f2d19dd JB |
21 | \f |
22 | ||
dbb605f5 | 23 | #ifdef HAVE_CONFIG_H |
3d05f2e0 RB |
24 | # include <config.h> |
25 | #endif | |
0f2d19dd | 26 | |
f7439099 | 27 | #include <alloca.h> |
741b8a23 | 28 | #include <stdarg.h> |
3d05f2e0 | 29 | |
f7439099 | 30 | #include "libguile/__scm.h" |
48b96f4b | 31 | |
a0599745 | 32 | #include "libguile/_scm.h" |
21628685 DH |
33 | #include "libguile/alist.h" |
34 | #include "libguile/async.h" | |
35 | #include "libguile/continuations.h" | |
747022e4 | 36 | #include "libguile/control.h" |
a0599745 | 37 | #include "libguile/debug.h" |
328dc9a3 | 38 | #include "libguile/deprecation.h" |
09074dbf | 39 | #include "libguile/dynwind.h" |
a0599745 | 40 | #include "libguile/eq.h" |
a310a1d1 | 41 | #include "libguile/expand.h" |
21628685 | 42 | #include "libguile/feature.h" |
21628685 DH |
43 | #include "libguile/goops.h" |
44 | #include "libguile/hash.h" | |
45 | #include "libguile/hashtab.h" | |
4610b011 | 46 | #include "libguile/list.h" |
a0599745 | 47 | #include "libguile/macros.h" |
b7742c6b | 48 | #include "libguile/memoize.h" |
a0599745 MD |
49 | #include "libguile/modules.h" |
50 | #include "libguile/ports.h" | |
7e6e6b37 | 51 | #include "libguile/print.h" |
21628685 | 52 | #include "libguile/procprop.h" |
4abef68f | 53 | #include "libguile/programs.h" |
a0599745 | 54 | #include "libguile/root.h" |
21628685 DH |
55 | #include "libguile/smob.h" |
56 | #include "libguile/srcprop.h" | |
57 | #include "libguile/stackchk.h" | |
58 | #include "libguile/strings.h" | |
9de87eea | 59 | #include "libguile/threads.h" |
21628685 DH |
60 | #include "libguile/throw.h" |
61 | #include "libguile/validate.h" | |
a513ead3 | 62 | #include "libguile/values.h" |
21628685 | 63 | #include "libguile/vectors.h" |
4abef68f | 64 | #include "libguile/vm.h" |
a0599745 | 65 | |
a0599745 | 66 | #include "libguile/eval.h" |
0ee05b85 | 67 | #include "libguile/private-options.h" |
89efbff4 | 68 | |
0f2d19dd JB |
69 | \f |
70 | ||
0ee05b85 | 71 | |
b7742c6b | 72 | /* We have three levels of EVAL here: |
609a8b86 | 73 | |
b7742c6b | 74 | - eval (exp, env) |
89bff2fc | 75 | |
b7742c6b AW |
76 | evaluates EXP in environment ENV. ENV is a lexical environment |
77 | structure as used by the actual tree code evaluator. When ENV is | |
78 | a top-level environment, then changes to the current module are | |
79 | tracked by updating ENV so that it continues to be in sync with | |
80 | the current module. | |
e6729603 | 81 | |
b7742c6b | 82 | - scm_primitive_eval (exp) |
e6729603 | 83 | |
b7742c6b AW |
84 | evaluates EXP in the top-level environment as determined by the |
85 | current module. This is done by constructing a suitable | |
86 | environment and calling eval. Thus, changes to the | |
87 | top-level module are tracked normally. | |
e6729603 | 88 | |
b7742c6b | 89 | - scm_eval (exp, mod) |
e6729603 | 90 | |
b7742c6b AW |
91 | evaluates EXP while MOD is the current module. This is done |
92 | by setting the current module to MOD_OR_STATE, invoking | |
93 | scm_primitive_eval on EXP, and then restoring the current module | |
94 | to the value it had previously. That is, while EXP is evaluated, | |
95 | changes to the current module (or dynamic state) are tracked, | |
96 | but these changes do not persist when scm_eval returns. | |
e6729603 | 97 | |
b7742c6b | 98 | */ |
e6729603 | 99 | |
e6729603 | 100 | |
314b8716 AW |
101 | /* Boot closures. We only see these when compiling eval.scm, because once |
102 | eval.scm is in the house, closures are standard VM closures. | |
103 | */ | |
104 | ||
105 | static scm_t_bits scm_tc16_boot_closure; | |
b2b33168 AW |
106 | #define RETURN_BOOT_CLOSURE(code, env) \ |
107 | SCM_RETURN_NEWSMOB2 (scm_tc16_boot_closure, SCM_UNPACK (code), SCM_UNPACK (env)) | |
314b8716 AW |
108 | #define BOOT_CLOSURE_P(obj) SCM_TYP16_PREDICATE (scm_tc16_boot_closure, (obj)) |
109 | #define BOOT_CLOSURE_CODE(x) SCM_SMOB_OBJECT (x) | |
110 | #define BOOT_CLOSURE_ENV(x) SCM_SMOB_OBJECT_2 (x) | |
8f9c5b58 | 111 | #define BOOT_CLOSURE_BODY(x) CAR (BOOT_CLOSURE_CODE (x)) |
c438cd71 LC |
112 | #define BOOT_CLOSURE_NUM_REQUIRED_ARGS(x) (SCM_I_INUM (CADDR (BOOT_CLOSURE_CODE (x)))) |
113 | #define BOOT_CLOSURE_IS_FIXED(x) (scm_is_null (CDDDR (BOOT_CLOSURE_CODE (x)))) | |
8f9c5b58 | 114 | /* NB: One may only call the following accessors if the closure is not FIXED. */ |
c438cd71 LC |
115 | #define BOOT_CLOSURE_HAS_REST_ARGS(x) scm_is_true (CADDR (SCM_CDR (BOOT_CLOSURE_CODE (x)))) |
116 | #define BOOT_CLOSURE_IS_REST(x) scm_is_null (SCM_CDR (CDDDR (BOOT_CLOSURE_CODE (x)))) | |
8f9c5b58 AW |
117 | /* NB: One may only call the following accessors if the closure is not REST. */ |
118 | #define BOOT_CLOSURE_IS_FULL(x) (1) | |
dc3e203e AW |
119 | #define BOOT_CLOSURE_PARSE_FULL(fu_,body,nargs,rest,nopt,kw,inits,alt) \ |
120 | do { SCM fu = fu_; \ | |
c438cd71 | 121 | body = CAR (fu); fu = CDDR (fu); \ |
dc3e203e AW |
122 | \ |
123 | rest = kw = alt = SCM_BOOL_F; \ | |
124 | inits = SCM_EOL; \ | |
125 | nopt = 0; \ | |
126 | \ | |
127 | nreq = SCM_I_INUM (CAR (fu)); fu = CDR (fu); \ | |
128 | if (scm_is_pair (fu)) \ | |
129 | { \ | |
130 | rest = CAR (fu); fu = CDR (fu); \ | |
131 | if (scm_is_pair (fu)) \ | |
132 | { \ | |
133 | nopt = SCM_I_INUM (CAR (fu)); fu = CDR (fu); \ | |
134 | kw = CAR (fu); fu = CDR (fu); \ | |
135 | inits = CAR (fu); fu = CDR (fu); \ | |
136 | alt = CAR (fu); \ | |
137 | } \ | |
138 | } \ | |
d8a071fc | 139 | } while (0) |
7572ee52 AW |
140 | static void prepare_boot_closure_env_for_apply (SCM proc, SCM args, |
141 | SCM *out_body, SCM *out_env); | |
142 | static void prepare_boot_closure_env_for_eval (SCM proc, unsigned int argc, | |
143 | SCM exps, SCM *out_body, | |
144 | SCM *inout_env); | |
314b8716 AW |
145 | |
146 | ||
b7742c6b AW |
147 | #define CAR(x) SCM_CAR(x) |
148 | #define CDR(x) SCM_CDR(x) | |
149 | #define CAAR(x) SCM_CAAR(x) | |
150 | #define CADR(x) SCM_CADR(x) | |
151 | #define CDAR(x) SCM_CDAR(x) | |
152 | #define CDDR(x) SCM_CDDR(x) | |
153 | #define CADDR(x) SCM_CADDR(x) | |
154 | #define CDDDR(x) SCM_CDDDR(x) | |
e6729603 | 155 | |
cfc28c80 AW |
156 | #define VECTOR_REF(v, i) (SCM_SIMPLE_VECTOR_REF (v, i)) |
157 | #define VECTOR_SET(v, i, x) (SCM_SIMPLE_VECTOR_SET (v, i, x)) | |
158 | #define VECTOR_LENGTH(v) (SCM_SIMPLE_VECTOR_LENGTH (v)) | |
159 | ||
160 | static SCM | |
161 | make_env (int n, SCM init, SCM next) | |
162 | { | |
163 | SCM env = scm_c_make_vector (n + 1, init); | |
164 | VECTOR_SET (env, 0, next); | |
165 | return env; | |
166 | } | |
167 | ||
168 | static SCM | |
169 | next_rib (SCM env) | |
170 | { | |
171 | return VECTOR_REF (env, 0); | |
172 | } | |
173 | ||
174 | static SCM | |
175 | env_tail (SCM env) | |
176 | { | |
177 | while (SCM_I_IS_VECTOR (env)) | |
178 | env = next_rib (env); | |
179 | return env; | |
180 | } | |
181 | ||
182 | static SCM | |
183 | env_ref (SCM env, int depth, int width) | |
184 | { | |
185 | while (depth--) | |
186 | env = next_rib (env); | |
187 | return VECTOR_REF (env, width + 1); | |
188 | } | |
189 | ||
190 | static void | |
191 | env_set (SCM env, int depth, int width, SCM val) | |
192 | { | |
193 | while (depth--) | |
194 | env = next_rib (env); | |
195 | VECTOR_SET (env, width + 1, val); | |
196 | } | |
197 | ||
e6729603 | 198 | |
b7742c6b | 199 | SCM_SYMBOL (scm_unbound_variable_key, "unbound-variable"); |
e6729603 | 200 | |
b7742c6b | 201 | static void error_used_before_defined (void) |
d0624e39 | 202 | { |
b7742c6b AW |
203 | scm_error (scm_unbound_variable_key, NULL, |
204 | "Variable used before given a value", SCM_EOL, SCM_BOOL_F); | |
d0624e39 | 205 | } |
d0624e39 | 206 | |
4af0d97e | 207 | static void error_invalid_keyword (SCM proc, SCM obj) |
d8a071fc | 208 | { |
4a655e50 | 209 | scm_error_scm (scm_from_latin1_symbol ("keyword-argument-error"), proc, |
d8a071fc | 210 | scm_from_locale_string ("Invalid keyword"), SCM_EOL, |
4af0d97e | 211 | scm_list_1 (obj)); |
d8a071fc AW |
212 | } |
213 | ||
4af0d97e | 214 | static void error_unrecognized_keyword (SCM proc, SCM kw) |
d8a071fc | 215 | { |
4a655e50 | 216 | scm_error_scm (scm_from_latin1_symbol ("keyword-argument-error"), proc, |
d8a071fc | 217 | scm_from_locale_string ("Unrecognized keyword"), SCM_EOL, |
4af0d97e | 218 | scm_list_1 (kw)); |
d8a071fc AW |
219 | } |
220 | ||
221 | ||
f3a9a51d AW |
222 | /* Multiple values truncation. */ |
223 | static SCM | |
224 | truncate_values (SCM x) | |
225 | { | |
226 | if (SCM_LIKELY (!SCM_VALUESP (x))) | |
227 | return x; | |
228 | else | |
229 | { | |
230 | SCM l = scm_struct_ref (x, SCM_INUM0); | |
231 | if (SCM_LIKELY (scm_is_pair (l))) | |
232 | return scm_car (l); | |
233 | else | |
234 | { | |
235 | scm_ithrow (scm_from_latin1_symbol ("vm-run"), | |
236 | scm_list_3 (scm_from_latin1_symbol ("vm-run"), | |
237 | scm_from_locale_string | |
238 | ("Too few values returned to continuation"), | |
239 | SCM_EOL), | |
240 | 1); | |
241 | /* Not reached. */ | |
242 | return SCM_BOOL_F; | |
243 | } | |
244 | } | |
245 | } | |
246 | #define EVAL1(x, env) (truncate_values (eval ((x), (env)))) | |
247 | ||
b7742c6b | 248 | /* the environment: |
3149a5b6 | 249 | (VAL ... . MOD) |
b7742c6b AW |
250 | If MOD is #f, it means the environment was captured before modules were |
251 | booted. | |
252 | If MOD is the literal value '(), we are evaluating at the top level, and so | |
253 | should track changes to the current module. You have to be careful in this | |
254 | case, because further lexical contours should capture the current module. | |
255 | */ | |
256 | #define CAPTURE_ENV(env) \ | |
393baa8a AW |
257 | (scm_is_null (env) ? scm_current_module () : \ |
258 | (scm_is_false (env) ? scm_the_root_module () : env)) | |
6f81708a DH |
259 | |
260 | static SCM | |
b7742c6b | 261 | eval (SCM x, SCM env) |
6f81708a | 262 | { |
b7742c6b AW |
263 | SCM mx; |
264 | SCM proc = SCM_UNDEFINED, args = SCM_EOL; | |
b7ecadca | 265 | unsigned int argc; |
6f81708a | 266 | |
b7742c6b AW |
267 | loop: |
268 | SCM_TICK; | |
b7742c6b AW |
269 | |
270 | mx = SCM_MEMOIZED_ARGS (x); | |
0720f70e | 271 | switch (SCM_I_INUM (SCM_CAR (x))) |
b7742c6b | 272 | { |
6fc3eae4 AW |
273 | case SCM_M_SEQ: |
274 | eval (CAR (mx), env); | |
275 | x = CDR (mx); | |
b7742c6b AW |
276 | goto loop; |
277 | ||
278 | case SCM_M_IF: | |
f3a9a51d | 279 | if (scm_is_true (EVAL1 (CAR (mx), env))) |
b7742c6b | 280 | x = CADR (mx); |
6f81708a | 281 | else |
b7742c6b AW |
282 | x = CDDR (mx); |
283 | goto loop; | |
5fb64383 | 284 | |
b7742c6b AW |
285 | case SCM_M_LET: |
286 | { | |
287 | SCM inits = CAR (mx); | |
cfc28c80 AW |
288 | SCM new_env; |
289 | int i; | |
290 | ||
291 | new_env = make_env (VECTOR_LENGTH (inits), SCM_UNDEFINED, | |
292 | CAPTURE_ENV (env)); | |
293 | for (i = 0; i < VECTOR_LENGTH (inits); i++) | |
294 | env_set (new_env, 0, i, EVAL1 (VECTOR_REF (inits, i), env)); | |
b7742c6b AW |
295 | env = new_env; |
296 | x = CDR (mx); | |
297 | goto loop; | |
298 | } | |
299 | ||
300 | case SCM_M_LAMBDA: | |
314b8716 | 301 | RETURN_BOOT_CLOSURE (mx, CAPTURE_ENV (env)); |
5fb64383 | 302 | |
b7742c6b AW |
303 | case SCM_M_QUOTE: |
304 | return mx; | |
0f2d19dd | 305 | |
b7742c6b | 306 | case SCM_M_DEFINE: |
f3a9a51d | 307 | scm_define (CAR (mx), EVAL1 (CDR (mx), env)); |
b7742c6b | 308 | return SCM_UNSPECIFIED; |
212e58ed | 309 | |
b7742c6b AW |
310 | case SCM_M_APPLY: |
311 | /* Evaluate the procedure to be applied. */ | |
f3a9a51d | 312 | proc = EVAL1 (CAR (mx), env); |
b7742c6b | 313 | /* Evaluate the argument holding the list of arguments */ |
f3a9a51d | 314 | args = EVAL1 (CADR (mx), env); |
b7742c6b AW |
315 | |
316 | apply_proc: | |
317 | /* Go here to tail-apply a procedure. PROC is the procedure and | |
318 | * ARGS is the list of arguments. */ | |
314b8716 | 319 | if (BOOT_CLOSURE_P (proc)) |
b7742c6b | 320 | { |
7572ee52 | 321 | prepare_boot_closure_env_for_apply (proc, args, &x, &env); |
b7742c6b AW |
322 | goto loop; |
323 | } | |
324 | else | |
ea9f4f4b | 325 | return scm_call_with_vm (scm_the_vm (), proc, args); |
212e58ed | 326 | |
b7742c6b AW |
327 | case SCM_M_CALL: |
328 | /* Evaluate the procedure to be applied. */ | |
f3a9a51d | 329 | proc = EVAL1 (CAR (mx), env); |
b7ecadca | 330 | argc = SCM_I_INUM (CADR (mx)); |
9331f91c | 331 | mx = CDDR (mx); |
212e58ed | 332 | |
314b8716 | 333 | if (BOOT_CLOSURE_P (proc)) |
5fa0939c | 334 | { |
7572ee52 | 335 | prepare_boot_closure_env_for_eval (proc, argc, mx, &x, &env); |
b7742c6b | 336 | goto loop; |
5fa0939c | 337 | } |
b7742c6b AW |
338 | else |
339 | { | |
e2cf8eb9 | 340 | SCM *argv; |
b7ecadca LC |
341 | unsigned int i; |
342 | ||
e2cf8eb9 | 343 | argv = alloca (argc * sizeof (SCM)); |
b7ecadca | 344 | for (i = 0; i < argc; i++, mx = CDR (mx)) |
f3a9a51d | 345 | argv[i] = EVAL1 (CAR (mx), env); |
b7ecadca LC |
346 | |
347 | return scm_c_vm_run (scm_the_vm (), proc, argv, argc); | |
b7742c6b | 348 | } |
b7ecadca | 349 | |
b7742c6b | 350 | case SCM_M_CONT: |
f3a9a51d | 351 | return scm_i_call_with_current_continuation (EVAL1 (mx, env)); |
212e58ed | 352 | |
b7742c6b AW |
353 | case SCM_M_CALL_WITH_VALUES: |
354 | { | |
355 | SCM producer; | |
356 | SCM v; | |
357 | ||
f3a9a51d AW |
358 | producer = EVAL1 (CAR (mx), env); |
359 | /* `proc' is the consumer. */ | |
360 | proc = EVAL1 (CDR (mx), env); | |
ea9f4f4b | 361 | v = scm_call_with_vm (scm_the_vm (), producer, SCM_EOL); |
b7742c6b AW |
362 | if (SCM_VALUESP (v)) |
363 | args = scm_struct_ref (v, SCM_INUM0); | |
364 | else | |
365 | args = scm_list_1 (v); | |
366 | goto apply_proc; | |
367 | } | |
26d5b9b4 | 368 | |
b7742c6b AW |
369 | case SCM_M_LEXICAL_REF: |
370 | { | |
cfc28c80 AW |
371 | SCM pos, ret; |
372 | int depth, width; | |
373 | ||
374 | pos = mx; | |
375 | depth = SCM_I_INUM (CAR (pos)); | |
376 | width = SCM_I_INUM (CDR (pos)); | |
377 | ||
378 | ret = env_ref (env, depth, width); | |
379 | ||
b7742c6b AW |
380 | if (SCM_UNLIKELY (SCM_UNBNDP (ret))) |
381 | /* we don't know what variable, though, because we don't have its | |
382 | name */ | |
383 | error_used_before_defined (); | |
384 | return ret; | |
385 | } | |
1cc91f1b | 386 | |
b7742c6b AW |
387 | case SCM_M_LEXICAL_SET: |
388 | { | |
cfc28c80 AW |
389 | SCM pos; |
390 | int depth, width; | |
f3a9a51d | 391 | SCM val = EVAL1 (CDR (mx), env); |
cfc28c80 AW |
392 | |
393 | pos = CAR (mx); | |
394 | depth = SCM_I_INUM (CAR (pos)); | |
395 | width = SCM_I_INUM (CDR (pos)); | |
396 | ||
397 | env_set (env, depth, width, val); | |
398 | ||
b7742c6b AW |
399 | return SCM_UNSPECIFIED; |
400 | } | |
910b5125 | 401 | |
b7742c6b AW |
402 | case SCM_M_TOPLEVEL_REF: |
403 | if (SCM_VARIABLEP (mx)) | |
404 | return SCM_VARIABLE_REF (mx); | |
405 | else | |
57d23e25 | 406 | { |
cfc28c80 | 407 | env = env_tail (env); |
3149a5b6 AW |
408 | return SCM_VARIABLE_REF |
409 | (scm_memoize_variable_access_x (x, CAPTURE_ENV (env))); | |
57d23e25 | 410 | } |
57d23e25 | 411 | |
b7742c6b AW |
412 | case SCM_M_TOPLEVEL_SET: |
413 | { | |
414 | SCM var = CAR (mx); | |
f3a9a51d | 415 | SCM val = EVAL1 (CDR (mx), env); |
b7742c6b AW |
416 | if (SCM_VARIABLEP (var)) |
417 | { | |
418 | SCM_VARIABLE_SET (var, val); | |
419 | return SCM_UNSPECIFIED; | |
420 | } | |
421 | else | |
422 | { | |
cfc28c80 | 423 | env = env_tail (env); |
3149a5b6 AW |
424 | SCM_VARIABLE_SET |
425 | (scm_memoize_variable_access_x (x, CAPTURE_ENV (env)), | |
426 | val); | |
b7742c6b AW |
427 | return SCM_UNSPECIFIED; |
428 | } | |
429 | } | |
910b5125 | 430 | |
b7742c6b AW |
431 | case SCM_M_MODULE_REF: |
432 | if (SCM_VARIABLEP (mx)) | |
433 | return SCM_VARIABLE_REF (mx); | |
910b5125 | 434 | else |
3149a5b6 AW |
435 | return SCM_VARIABLE_REF |
436 | (scm_memoize_variable_access_x (x, SCM_BOOL_F)); | |
910b5125 | 437 | |
b7742c6b AW |
438 | case SCM_M_MODULE_SET: |
439 | if (SCM_VARIABLEP (CDR (mx))) | |
910b5125 | 440 | { |
f3a9a51d | 441 | SCM_VARIABLE_SET (CDR (mx), EVAL1 (CAR (mx), env)); |
b7742c6b AW |
442 | return SCM_UNSPECIFIED; |
443 | } | |
444 | else | |
445 | { | |
3149a5b6 AW |
446 | SCM_VARIABLE_SET |
447 | (scm_memoize_variable_access_x (x, SCM_BOOL_F), | |
f3a9a51d | 448 | EVAL1 (CAR (mx), env)); |
b7742c6b | 449 | return SCM_UNSPECIFIED; |
910b5125 | 450 | } |
910b5125 | 451 | |
1773bc7d | 452 | case SCM_M_CALL_WITH_PROMPT: |
747022e4 | 453 | { |
9ede013f | 454 | SCM vm, k, res; |
9d381ba4 | 455 | scm_i_jmp_buf registers; |
9ede013f AW |
456 | /* We need the handler after nonlocal return to the setjmp, so |
457 | make sure it is volatile. */ | |
458 | volatile SCM handler; | |
459 | ||
460 | k = EVAL1 (CAR (mx), env); | |
f3a9a51d | 461 | handler = EVAL1 (CDDR (mx), env); |
9ede013f AW |
462 | vm = scm_the_vm (); |
463 | ||
464 | /* Push the prompt onto the dynamic stack. */ | |
9ede013f | 465 | scm_dynstack_push_prompt (&SCM_I_CURRENT_THREAD->dynstack, |
c6cd692f AW |
466 | SCM_F_DYNSTACK_PROMPT_ESCAPE_ONLY |
467 | | SCM_F_DYNSTACK_PROMPT_PUSH_NARGS, | |
9d381ba4 AW |
468 | k, |
469 | SCM_VM_DATA (vm)->fp, | |
470 | SCM_VM_DATA (vm)->sp, | |
471 | SCM_VM_DATA (vm)->ip, | |
472 | ®isters); | |
473 | ||
474 | if (SCM_I_SETJMP (registers)) | |
747022e4 | 475 | { |
b8af64db | 476 | /* The prompt exited nonlocally. */ |
747022e4 | 477 | proc = handler; |
572eef50 | 478 | args = scm_i_prompt_pop_abort_args_x (scm_the_vm ()); |
747022e4 AW |
479 | goto apply_proc; |
480 | } | |
481 | ||
1773bc7d | 482 | res = scm_call_0 (eval (CADR (mx), env)); |
9ede013f | 483 | scm_dynstack_pop (&SCM_I_CURRENT_THREAD->dynstack); |
747022e4 AW |
484 | return res; |
485 | } | |
486 | ||
b7742c6b AW |
487 | default: |
488 | abort (); | |
489 | } | |
910b5125 DH |
490 | } |
491 | ||
b7742c6b | 492 | \f |
2a6f7afe | 493 | |
b7742c6b AW |
494 | /* Simple procedure calls |
495 | */ | |
2a6f7afe | 496 | |
b7742c6b AW |
497 | SCM |
498 | scm_call_0 (SCM proc) | |
499 | { | |
bf5a05f2 | 500 | return scm_c_vm_run (scm_the_vm (), proc, NULL, 0); |
0f2d19dd JB |
501 | } |
502 | ||
b7742c6b AW |
503 | SCM |
504 | scm_call_1 (SCM proc, SCM arg1) | |
212e58ed | 505 | { |
bf5a05f2 | 506 | return scm_c_vm_run (scm_the_vm (), proc, &arg1, 1); |
b7742c6b | 507 | } |
212e58ed | 508 | |
b7742c6b AW |
509 | SCM |
510 | scm_call_2 (SCM proc, SCM arg1, SCM arg2) | |
511 | { | |
bf5a05f2 AW |
512 | SCM args[] = { arg1, arg2 }; |
513 | return scm_c_vm_run (scm_the_vm (), proc, args, 2); | |
212e58ed DH |
514 | } |
515 | ||
b7742c6b AW |
516 | SCM |
517 | scm_call_3 (SCM proc, SCM arg1, SCM arg2, SCM arg3) | |
0f2d19dd | 518 | { |
bf5a05f2 AW |
519 | SCM args[] = { arg1, arg2, arg3 }; |
520 | return scm_c_vm_run (scm_the_vm (), proc, args, 3); | |
0f2d19dd JB |
521 | } |
522 | ||
b7742c6b AW |
523 | SCM |
524 | scm_call_4 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM arg4) | |
212e58ed | 525 | { |
bf5a05f2 AW |
526 | SCM args[] = { arg1, arg2, arg3, arg4 }; |
527 | return scm_c_vm_run (scm_the_vm (), proc, args, 4); | |
212e58ed DH |
528 | } |
529 | ||
f32e67be AW |
530 | SCM |
531 | scm_call_5 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM arg4, SCM arg5) | |
532 | { | |
533 | SCM args[] = { arg1, arg2, arg3, arg4, arg5 }; | |
534 | return scm_c_vm_run (scm_the_vm (), proc, args, 5); | |
535 | } | |
536 | ||
537 | SCM | |
538 | scm_call_6 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM arg4, SCM arg5, | |
539 | SCM arg6) | |
540 | { | |
541 | SCM args[] = { arg1, arg2, arg3, arg4, arg5, arg6 }; | |
542 | return scm_c_vm_run (scm_the_vm (), proc, args, 6); | |
543 | } | |
544 | ||
741b8a23 MW |
545 | SCM |
546 | scm_call_7 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM arg4, SCM arg5, | |
547 | SCM arg6, SCM arg7) | |
548 | { | |
549 | SCM args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7 }; | |
550 | return scm_c_vm_run (scm_the_vm (), proc, args, 7); | |
551 | } | |
552 | ||
553 | SCM | |
554 | scm_call_8 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM arg4, SCM arg5, | |
555 | SCM arg6, SCM arg7, SCM arg8) | |
556 | { | |
557 | SCM args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8 }; | |
558 | return scm_c_vm_run (scm_the_vm (), proc, args, 8); | |
559 | } | |
560 | ||
561 | SCM | |
562 | scm_call_9 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM arg4, SCM arg5, | |
563 | SCM arg6, SCM arg7, SCM arg8, SCM arg9) | |
564 | { | |
565 | SCM args[] = { arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9 }; | |
566 | return scm_c_vm_run (scm_the_vm (), proc, args, 9); | |
567 | } | |
568 | ||
86fd6dff AW |
569 | SCM |
570 | scm_call_n (SCM proc, SCM *argv, size_t nargs) | |
571 | { | |
572 | return scm_c_vm_run (scm_the_vm (), proc, argv, nargs); | |
573 | } | |
574 | ||
741b8a23 | 575 | SCM |
07c2ca0f | 576 | scm_call (SCM proc, ...) |
741b8a23 MW |
577 | { |
578 | va_list argp; | |
579 | SCM *argv = NULL; | |
580 | size_t i, nargs = 0; | |
581 | ||
582 | va_start (argp, proc); | |
583 | while (!SCM_UNBNDP (va_arg (argp, SCM))) | |
584 | nargs++; | |
585 | va_end (argp); | |
586 | ||
587 | argv = alloca (nargs * sizeof (SCM)); | |
588 | va_start (argp, proc); | |
589 | for (i = 0; i < nargs; i++) | |
590 | argv[i] = va_arg (argp, SCM); | |
591 | va_end (argp); | |
592 | ||
593 | return scm_c_vm_run (scm_the_vm (), proc, argv, nargs); | |
594 | } | |
595 | ||
b7742c6b | 596 | /* Simple procedure applies |
9fbee57e | 597 | */ |
cc56ba80 | 598 | |
b7742c6b AW |
599 | SCM |
600 | scm_apply_0 (SCM proc, SCM args) | |
601 | { | |
602 | return scm_apply (proc, args, SCM_EOL); | |
0f572ba7 DH |
603 | } |
604 | ||
b7742c6b AW |
605 | SCM |
606 | scm_apply_1 (SCM proc, SCM arg1, SCM args) | |
0f572ba7 | 607 | { |
b7742c6b | 608 | return scm_apply (proc, scm_cons (arg1, args), SCM_EOL); |
8ae95199 DH |
609 | } |
610 | ||
b7742c6b AW |
611 | SCM |
612 | scm_apply_2 (SCM proc, SCM arg1, SCM arg2, SCM args) | |
0f2d19dd | 613 | { |
b7742c6b | 614 | return scm_apply (proc, scm_cons2 (arg1, arg2, args), SCM_EOL); |
0f2d19dd JB |
615 | } |
616 | ||
b7742c6b AW |
617 | SCM |
618 | scm_apply_3 (SCM proc, SCM arg1, SCM arg2, SCM arg3, SCM args) | |
212e58ed | 619 | { |
b7742c6b AW |
620 | return scm_apply (proc, scm_cons (arg1, scm_cons2 (arg2, arg3, args)), |
621 | SCM_EOL); | |
212e58ed DH |
622 | } |
623 | ||
b8229a3b | 624 | |
b7742c6b AW |
625 | SCM |
626 | scm_map (SCM proc, SCM arg1, SCM args) | |
0f2d19dd | 627 | { |
a2230b65 | 628 | static SCM var = SCM_BOOL_F; |
0f2d19dd | 629 | |
a2230b65 AW |
630 | if (scm_is_false (var)) |
631 | var = scm_private_variable (scm_the_root_module (), | |
632 | scm_from_latin1_symbol ("map")); | |
302c12b4 | 633 | |
a2230b65 AW |
634 | return scm_apply (scm_variable_ref (var), |
635 | scm_cons (proc, scm_cons (arg1, args)), SCM_EOL); | |
636 | } | |
d6754c23 | 637 | |
b7742c6b AW |
638 | SCM |
639 | scm_for_each (SCM proc, SCM arg1, SCM args) | |
0f2d19dd | 640 | { |
a2230b65 AW |
641 | static SCM var = SCM_BOOL_F; |
642 | ||
643 | if (scm_is_false (var)) | |
644 | var = scm_private_variable (scm_the_root_module (), | |
645 | scm_from_latin1_symbol ("for-each")); | |
646 | ||
647 | return scm_apply (scm_variable_ref (var), | |
648 | scm_cons (proc, scm_cons (arg1, args)), SCM_EOL); | |
b7742c6b | 649 | } |
71560395 | 650 | |
71560395 | 651 | |
5f161164 AW |
652 | static SCM |
653 | scm_c_primitive_eval (SCM exp) | |
b7742c6b | 654 | { |
a310a1d1 | 655 | if (!SCM_EXPANDED_P (exp)) |
4f692ace | 656 | exp = scm_call_1 (scm_current_module_transformer (), exp); |
a310a1d1 | 657 | return eval (scm_memoize_expression (exp), SCM_EOL); |
b7742c6b | 658 | } |
5f161164 AW |
659 | |
660 | static SCM var_primitive_eval; | |
661 | SCM | |
662 | scm_primitive_eval (SCM exp) | |
663 | { | |
664 | return scm_c_vm_run (scm_the_vm (), scm_variable_ref (var_primitive_eval), | |
665 | &exp, 1); | |
666 | } | |
71560395 | 667 | |
b7742c6b AW |
668 | |
669 | /* Eval does not take the second arg optionally. This is intentional | |
670 | * in order to be R5RS compatible, and to prepare for the new module | |
671 | * system, where we would like to make the choice of evaluation | |
672 | * environment explicit. */ | |
673 | ||
674 | SCM_DEFINE (scm_eval, "eval", 2, 0, 0, | |
675 | (SCM exp, SCM module_or_state), | |
676 | "Evaluate @var{exp}, a list representing a Scheme expression,\n" | |
677 | "in the top-level environment specified by\n" | |
678 | "@var{module_or_state}.\n" | |
679 | "While @var{exp} is evaluated (using @code{primitive-eval}),\n" | |
680 | "@var{module_or_state} is made the current module when\n" | |
681 | "it is a module, or the current dynamic state when it is\n" | |
682 | "a dynamic state." | |
683 | "Example: (eval '(+ 1 2) (interaction-environment))") | |
684 | #define FUNC_NAME s_scm_eval | |
685 | { | |
686 | SCM res; | |
687 | ||
688 | scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE); | |
689 | if (scm_is_dynamic_state (module_or_state)) | |
690 | scm_dynwind_current_dynamic_state (module_or_state); | |
691 | else if (scm_module_system_booted_p) | |
692 | { | |
693 | SCM_VALIDATE_MODULE (2, module_or_state); | |
694 | scm_dynwind_current_module (module_or_state); | |
71560395 | 695 | } |
b7742c6b | 696 | /* otherwise if the module system isn't booted, ignore the module arg */ |
71560395 | 697 | |
b7742c6b AW |
698 | res = scm_primitive_eval (exp); |
699 | ||
700 | scm_dynwind_end (); | |
701 | return res; | |
702 | } | |
703 | #undef FUNC_NAME | |
71560395 AW |
704 | |
705 | ||
b7742c6b | 706 | static SCM f_apply; |
71560395 AW |
707 | |
708 | /* Apply a function to a list of arguments. | |
709 | ||
710 | This function is exported to the Scheme level as taking two | |
711 | required arguments and a tail argument, as if it were: | |
712 | (lambda (proc arg1 . args) ...) | |
713 | Thus, if you just have a list of arguments to pass to a procedure, | |
714 | pass the list as ARG1, and '() for ARGS. If you have some fixed | |
715 | args, pass the first as ARG1, then cons any remaining fixed args | |
716 | onto the front of your argument list, and pass that as ARGS. */ | |
717 | ||
718 | SCM | |
719 | scm_apply (SCM proc, SCM arg1, SCM args) | |
720 | { | |
b7742c6b | 721 | /* Fix things up so that args contains all args. */ |
71560395 | 722 | if (scm_is_null (args)) |
b7742c6b | 723 | args = arg1; |
71560395 | 724 | else |
b7742c6b | 725 | args = scm_cons_star (arg1, args); |
71560395 | 726 | |
ea9f4f4b | 727 | return scm_call_with_vm (scm_the_vm (), proc, args); |
b7742c6b | 728 | } |
434f2f7a | 729 | |
7572ee52 AW |
730 | static void |
731 | prepare_boot_closure_env_for_apply (SCM proc, SCM args, | |
732 | SCM *out_body, SCM *out_env) | |
314b8716 | 733 | { |
8f9c5b58 AW |
734 | int nreq = BOOT_CLOSURE_NUM_REQUIRED_ARGS (proc); |
735 | SCM env = BOOT_CLOSURE_ENV (proc); | |
cfc28c80 AW |
736 | int i; |
737 | ||
8f9c5b58 AW |
738 | if (BOOT_CLOSURE_IS_FIXED (proc) |
739 | || (BOOT_CLOSURE_IS_REST (proc) | |
740 | && !BOOT_CLOSURE_HAS_REST_ARGS (proc))) | |
741 | { | |
742 | if (SCM_UNLIKELY (scm_ilength (args) != nreq)) | |
743 | scm_wrong_num_args (proc); | |
cfc28c80 AW |
744 | |
745 | env = make_env (nreq, SCM_UNDEFINED, env); | |
746 | for (i = 0; i < nreq; args = CDR (args), i++) | |
747 | env_set (env, 0, i, CAR (args)); | |
7572ee52 AW |
748 | *out_body = BOOT_CLOSURE_BODY (proc); |
749 | *out_env = env; | |
8f9c5b58 AW |
750 | } |
751 | else if (BOOT_CLOSURE_IS_REST (proc)) | |
314b8716 AW |
752 | { |
753 | if (SCM_UNLIKELY (scm_ilength (args) < nreq)) | |
8f9c5b58 | 754 | scm_wrong_num_args (proc); |
cfc28c80 AW |
755 | |
756 | env = make_env (nreq + 1, SCM_UNDEFINED, env); | |
757 | for (i = 0; i < nreq; args = CDR (args), i++) | |
758 | env_set (env, 0, i, CAR (args)); | |
759 | env_set (env, 0, i++, args); | |
760 | ||
7572ee52 AW |
761 | *out_body = BOOT_CLOSURE_BODY (proc); |
762 | *out_env = env; | |
314b8716 AW |
763 | } |
764 | else | |
d8a071fc | 765 | { |
cfc28c80 | 766 | int i, argc, nreq, nopt, nenv; |
d8a071fc | 767 | SCM body, rest, kw, inits, alt; |
dc3e203e | 768 | SCM mx = BOOT_CLOSURE_CODE (proc); |
d8a071fc | 769 | |
7572ee52 | 770 | loop: |
dc3e203e | 771 | BOOT_CLOSURE_PARSE_FULL (mx, body, nargs, rest, nopt, kw, inits, alt); |
d8a071fc AW |
772 | |
773 | argc = scm_ilength (args); | |
774 | if (argc < nreq) | |
775 | { | |
776 | if (scm_is_true (alt)) | |
7572ee52 | 777 | { |
dc3e203e | 778 | mx = alt; |
7572ee52 AW |
779 | goto loop; |
780 | } | |
d8a071fc AW |
781 | else |
782 | scm_wrong_num_args (proc); | |
783 | } | |
784 | if (scm_is_false (kw) && argc > nreq + nopt && scm_is_false (rest)) | |
785 | { | |
786 | if (scm_is_true (alt)) | |
7572ee52 | 787 | { |
dc3e203e | 788 | mx = alt; |
7572ee52 AW |
789 | goto loop; |
790 | } | |
d8a071fc AW |
791 | else |
792 | scm_wrong_num_args (proc); | |
793 | } | |
cfc28c80 AW |
794 | if (scm_is_true (kw) && scm_is_false (rest)) |
795 | { | |
796 | int npos = 0; | |
797 | SCM walk; | |
798 | for (walk = args; scm_is_pair (walk); walk = CDR (walk), npos++) | |
799 | if (npos >= nreq && scm_is_keyword (CAR (walk))) | |
800 | break; | |
801 | ||
802 | if (npos > nreq + nopt) | |
803 | { | |
804 | /* Too many positional args and no rest arg. */ | |
805 | if (scm_is_true (alt)) | |
806 | { | |
807 | mx = alt; | |
808 | goto loop; | |
809 | } | |
810 | else | |
811 | scm_wrong_num_args (proc); | |
812 | } | |
813 | } | |
814 | ||
815 | /* At this point we are committed to the chosen clause. */ | |
816 | nenv = nreq + (scm_is_true (rest) ? 1 : 0) + scm_ilength (inits); | |
817 | env = make_env (nenv, SCM_UNDEFINED, env); | |
d8a071fc AW |
818 | |
819 | for (i = 0; i < nreq; i++, args = CDR (args)) | |
cfc28c80 | 820 | env_set (env, 0, i, CAR (args)); |
d8a071fc AW |
821 | |
822 | if (scm_is_false (kw)) | |
823 | { | |
824 | /* Optional args (possibly), but no keyword args. */ | |
825 | for (; i < argc && i < nreq + nopt; | |
cfc28c80 AW |
826 | i++, args = CDR (args), inits = CDR (inits)) |
827 | env_set (env, 0, i, CAR (args)); | |
d8a071fc AW |
828 | |
829 | for (; i < nreq + nopt; i++, inits = CDR (inits)) | |
cfc28c80 | 830 | env_set (env, 0, i, EVAL1 (CAR (inits), env)); |
d8a071fc AW |
831 | |
832 | if (scm_is_true (rest)) | |
cfc28c80 | 833 | env_set (env, 0, i++, args); |
d8a071fc AW |
834 | } |
835 | else | |
836 | { | |
837 | SCM aok; | |
838 | ||
839 | aok = CAR (kw); | |
840 | kw = CDR (kw); | |
841 | ||
cfc28c80 | 842 | /* Optional args. As before, but stop at the first keyword. */ |
d8a071fc AW |
843 | for (; i < argc && i < nreq + nopt && !scm_is_keyword (CAR (args)); |
844 | i++, args = CDR (args), inits = CDR (inits)) | |
cfc28c80 | 845 | env_set (env, 0, i, CAR (args)); |
d8a071fc AW |
846 | |
847 | for (; i < nreq + nopt; i++, inits = CDR (inits)) | |
cfc28c80 | 848 | env_set (env, 0, i, EVAL1 (CAR (inits), env)); |
d8a071fc AW |
849 | |
850 | if (scm_is_true (rest)) | |
cfc28c80 | 851 | env_set (env, 0, i++, args); |
d8a071fc | 852 | |
cfc28c80 | 853 | /* Parse keyword args. */ |
d8a071fc | 854 | { |
d8a071fc | 855 | int kw_start_idx = i; |
cfc28c80 | 856 | SCM walk; |
d8a071fc AW |
857 | |
858 | if (scm_is_pair (args) && scm_is_pair (CDR (args))) | |
859 | for (; scm_is_pair (args) && scm_is_pair (CDR (args)); | |
860 | args = CDR (args)) | |
861 | { | |
cfc28c80 | 862 | SCM k = CAR (args), v = CADR (args); |
d8a071fc AW |
863 | if (!scm_is_keyword (k)) |
864 | { | |
865 | if (scm_is_true (rest)) | |
866 | continue; | |
867 | else | |
868 | break; | |
869 | } | |
870 | for (walk = kw; scm_is_pair (walk); walk = CDR (walk)) | |
871 | if (scm_is_eq (k, CAAR (walk))) | |
872 | { | |
cfc28c80 | 873 | env_set (env, 0, SCM_I_INUM (CDAR (walk)), v); |
d8a071fc AW |
874 | args = CDR (args); |
875 | break; | |
876 | } | |
877 | if (scm_is_null (walk) && scm_is_false (aok)) | |
4af0d97e | 878 | error_unrecognized_keyword (proc, k); |
d8a071fc AW |
879 | } |
880 | if (scm_is_pair (args) && scm_is_false (rest)) | |
4af0d97e | 881 | error_invalid_keyword (proc, CAR (args)); |
d8a071fc AW |
882 | |
883 | /* Now fill in unbound values, evaluating init expressions in their | |
884 | appropriate environment. */ | |
cfc28c80 AW |
885 | for (i = kw_start_idx; scm_is_pair (inits); i++, inits = CDR (inits)) |
886 | if (SCM_UNBNDP (env_ref (env, 0, i))) | |
887 | env_set (env, 0, i, EVAL1 (CAR (inits), env)); | |
d8a071fc AW |
888 | } |
889 | } | |
8f9c5b58 | 890 | |
cfc28c80 AW |
891 | if (!scm_is_null (inits)) |
892 | abort (); | |
893 | if (i != nenv) | |
894 | abort (); | |
895 | ||
dc3e203e | 896 | *out_body = body; |
7572ee52 AW |
897 | *out_env = env; |
898 | } | |
8f9c5b58 AW |
899 | } |
900 | ||
7572ee52 | 901 | static void |
8f9c5b58 | 902 | prepare_boot_closure_env_for_eval (SCM proc, unsigned int argc, |
7572ee52 | 903 | SCM exps, SCM *out_body, SCM *inout_env) |
8f9c5b58 AW |
904 | { |
905 | int nreq = BOOT_CLOSURE_NUM_REQUIRED_ARGS (proc); | |
906 | SCM new_env = BOOT_CLOSURE_ENV (proc); | |
cfc28c80 AW |
907 | if ((BOOT_CLOSURE_IS_FIXED (proc) |
908 | || (BOOT_CLOSURE_IS_REST (proc) | |
909 | && !BOOT_CLOSURE_HAS_REST_ARGS (proc))) | |
910 | && nreq == argc) | |
314b8716 | 911 | { |
cfc28c80 AW |
912 | int i; |
913 | ||
914 | new_env = make_env (nreq, SCM_UNDEFINED, new_env); | |
915 | for (i = 0; i < nreq; exps = CDR (exps), i++) | |
916 | env_set (new_env, 0, i, EVAL1 (CAR (exps), *inout_env)); | |
917 | ||
7572ee52 AW |
918 | *out_body = BOOT_CLOSURE_BODY (proc); |
919 | *inout_env = new_env; | |
314b8716 | 920 | } |
cfc28c80 | 921 | else if (BOOT_CLOSURE_IS_REST (proc) && argc >= nreq) |
8f9c5b58 | 922 | { |
cfc28c80 AW |
923 | SCM rest; |
924 | int i; | |
925 | ||
926 | new_env = make_env (nreq + 1, SCM_UNDEFINED, new_env); | |
927 | for (i = 0; i < nreq; exps = CDR (exps), i++) | |
928 | env_set (new_env, 0, i, EVAL1 (CAR (exps), *inout_env)); | |
929 | for (rest = SCM_EOL; scm_is_pair (exps); exps = CDR (exps)) | |
930 | rest = scm_cons (EVAL1 (CAR (exps), *inout_env), rest); | |
931 | env_set (new_env, 0, i++, scm_reverse_x (rest, SCM_UNDEFINED)); | |
932 | ||
7572ee52 AW |
933 | *out_body = BOOT_CLOSURE_BODY (proc); |
934 | *inout_env = new_env; | |
8f9c5b58 AW |
935 | } |
936 | else | |
d8a071fc AW |
937 | { |
938 | SCM args = SCM_EOL; | |
939 | for (; scm_is_pair (exps); exps = CDR (exps)) | |
f3a9a51d | 940 | args = scm_cons (EVAL1 (CAR (exps), *inout_env), args); |
7572ee52 AW |
941 | args = scm_reverse_x (args, SCM_UNDEFINED); |
942 | prepare_boot_closure_env_for_apply (proc, args, out_body, inout_env); | |
d8a071fc | 943 | } |
8f9c5b58 AW |
944 | } |
945 | ||
946 | static SCM | |
947 | boot_closure_apply (SCM closure, SCM args) | |
948 | { | |
7572ee52 AW |
949 | SCM body, env; |
950 | prepare_boot_closure_env_for_apply (closure, args, &body, &env); | |
951 | return eval (body, env); | |
314b8716 AW |
952 | } |
953 | ||
954 | static int | |
955 | boot_closure_print (SCM closure, SCM port, scm_print_state *pstate) | |
956 | { | |
957 | SCM args; | |
0607ebbf | 958 | scm_puts_unlocked ("#<boot-closure ", port); |
fdecb44f | 959 | scm_uintprint (SCM_UNPACK (closure), 16, port); |
0607ebbf | 960 | scm_putc_unlocked (' ', port); |
314b8716 | 961 | args = scm_make_list (scm_from_int (BOOT_CLOSURE_NUM_REQUIRED_ARGS (closure)), |
4a655e50 | 962 | scm_from_latin1_symbol ("_")); |
8f9c5b58 | 963 | if (!BOOT_CLOSURE_IS_FIXED (closure) && BOOT_CLOSURE_HAS_REST_ARGS (closure)) |
4a655e50 | 964 | args = scm_cons_star (scm_from_latin1_symbol ("_"), args); |
7572ee52 | 965 | /* FIXME: optionals and rests */ |
314b8716 | 966 | scm_display (args, port); |
0607ebbf | 967 | scm_putc_unlocked ('>', port); |
314b8716 AW |
968 | return 1; |
969 | } | |
970 | ||
0f2d19dd JB |
971 | void |
972 | scm_init_eval () | |
0f2d19dd | 973 | { |
5f161164 AW |
974 | SCM primitive_eval; |
975 | ||
df9ca8d8 | 976 | f_apply = scm_c_define_gsubr ("apply", 2, 0, 1, scm_apply); |
86d31dfe | 977 | |
314b8716 AW |
978 | scm_tc16_boot_closure = scm_make_smob_type ("boot-closure", 0); |
979 | scm_set_smob_apply (scm_tc16_boot_closure, boot_closure_apply, 0, 0, 1); | |
980 | scm_set_smob_print (scm_tc16_boot_closure, boot_closure_print); | |
981 | ||
5f161164 AW |
982 | primitive_eval = scm_c_make_gsubr ("primitive-eval", 1, 0, 0, |
983 | scm_c_primitive_eval); | |
984 | var_primitive_eval = scm_define (SCM_SUBR_NAME (primitive_eval), | |
985 | primitive_eval); | |
986 | ||
a0599745 | 987 | #include "libguile/eval.x" |
0f2d19dd | 988 | } |
0f2d19dd | 989 | |
89e00824 ML |
990 | /* |
991 | Local Variables: | |
992 | c-file-style: "gnu" | |
993 | End: | |
994 | */ | |
62560650 | 995 |