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e282f286 | 1 | /* Copyright (C) 1995, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. |
0f2d19dd JB |
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 | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 GB |
41 | |
42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
44 | ||
0f2d19dd JB |
45 | \f |
46 | ||
6dbd0af5 MD |
47 | /* This file is read twice in order to produce debugging versions of |
48 | * scm_ceval and scm_apply. These functions, scm_deval and | |
49 | * scm_dapply, are produced when we define the preprocessor macro | |
50 | * DEVAL. The file is divided into sections which are treated | |
51 | * differently with respect to DEVAL. The heads of these sections are | |
52 | * marked with the string "SECTION:". | |
53 | */ | |
54 | ||
55 | ||
56 | /* SECTION: This code is compiled once. | |
0f2d19dd JB |
57 | */ |
58 | ||
59 | #ifndef DEVAL | |
60 | ||
d16332b3 | 61 | /* We need this to get the definitions for HAVE_ALLOCA_H, etc. */ |
a0599745 | 62 | #include "libguile/scmconfig.h" |
d16332b3 | 63 | |
48b96f4b JB |
64 | /* AIX requires this to be the first thing in the file. The #pragma |
65 | directive is indented so pre-ANSI compilers will ignore it, rather | |
66 | than choke on it. */ | |
5862b540 | 67 | #ifndef __GNUC__ |
48b96f4b JB |
68 | # if HAVE_ALLOCA_H |
69 | # include <alloca.h> | |
70 | # else | |
71 | # ifdef _AIX | |
72 | #pragma alloca | |
73 | # else | |
74 | # ifndef alloca /* predefined by HP cc +Olibcalls */ | |
75 | char *alloca (); | |
76 | # endif | |
77 | # endif | |
78 | # endif | |
79 | #endif | |
80 | ||
0f2d19dd | 81 | #include <stdio.h> |
a0599745 MD |
82 | #include "libguile/_scm.h" |
83 | #include "libguile/debug.h" | |
84 | #include "libguile/alist.h" | |
85 | #include "libguile/eq.h" | |
86 | #include "libguile/continuations.h" | |
87 | #include "libguile/throw.h" | |
88 | #include "libguile/smob.h" | |
89 | #include "libguile/macros.h" | |
90 | #include "libguile/procprop.h" | |
91 | #include "libguile/hashtab.h" | |
92 | #include "libguile/hash.h" | |
93 | #include "libguile/srcprop.h" | |
94 | #include "libguile/stackchk.h" | |
95 | #include "libguile/objects.h" | |
96 | #include "libguile/async.h" | |
97 | #include "libguile/feature.h" | |
98 | #include "libguile/modules.h" | |
99 | #include "libguile/ports.h" | |
100 | #include "libguile/root.h" | |
101 | #include "libguile/vectors.h" | |
549e6ec6 | 102 | #include "libguile/fluids.h" |
a0599745 MD |
103 | |
104 | #include "libguile/validate.h" | |
105 | #include "libguile/eval.h" | |
89efbff4 | 106 | |
0f2d19dd JB |
107 | \f |
108 | ||
6dbd0af5 MD |
109 | /* The evaluator contains a plethora of EVAL symbols. |
110 | * This is an attempt at explanation. | |
111 | * | |
112 | * The following macros should be used in code which is read twice | |
113 | * (where the choice of evaluator is hard soldered): | |
114 | * | |
115 | * SCM_CEVAL is the symbol used within one evaluator to call itself. | |
116 | * Originally, it is defined to scm_ceval, but is redefined to | |
117 | * scm_deval during the second pass. | |
118 | * | |
119 | * SIDEVAL corresponds to SCM_CEVAL, but is used in situations where | |
120 | * only side effects of expressions matter. All immediates are | |
121 | * ignored. | |
122 | * | |
6cb702da | 123 | * SCM_EVALIM is used when it is known that the expression is an |
6dbd0af5 MD |
124 | * immediate. (This macro never calls an evaluator.) |
125 | * | |
126 | * EVALCAR evaluates the car of an expression. | |
127 | * | |
128 | * EVALCELLCAR is like EVALCAR, but is used when it is known that the | |
129 | * car is a lisp cell. | |
130 | * | |
131 | * The following macros should be used in code which is read once | |
132 | * (where the choice of evaluator is dynamic): | |
133 | * | |
6cb702da | 134 | * SCM_XEVAL takes care of immediates without calling an evaluator. It |
6dbd0af5 MD |
135 | * then calls scm_ceval *or* scm_deval, depending on the debugging |
136 | * mode. | |
137 | * | |
6cb702da | 138 | * SCM_XEVALCAR corresponds to EVALCAR, but uses scm_ceval *or* scm_deval |
6dbd0af5 MD |
139 | * depending on the debugging mode. |
140 | * | |
141 | * The main motivation for keeping this plethora is efficiency | |
142 | * together with maintainability (=> locality of code). | |
143 | */ | |
144 | ||
6cb702da | 145 | #define SCM_CEVAL scm_ceval |
7d2b68a8 | 146 | #define SIDEVAL(x, env) if (SCM_NIMP (x)) SCM_CEVAL((x), (env)) |
6cb702da | 147 | |
7d2b68a8 MD |
148 | #define EVALCELLCAR(x, env) (SCM_SYMBOLP (SCM_CAR (x)) \ |
149 | ? *scm_lookupcar (x, env, 1) \ | |
150 | : SCM_CEVAL (SCM_CAR (x), env)) | |
0f2d19dd | 151 | |
7d2b68a8 MD |
152 | #define EVALCAR(x, env) (SCM_NCELLP (SCM_CAR (x)) \ |
153 | ? (SCM_IMP (SCM_CAR (x)) \ | |
154 | ? SCM_EVALIM (SCM_CAR (x), env) \ | |
155 | : SCM_GLOC_VAL (SCM_CAR (x))) \ | |
156 | : EVALCELLCAR (x, env)) | |
0f2d19dd | 157 | |
e2806c10 | 158 | #define EXTEND_ENV SCM_EXTEND_ENV |
0f2d19dd JB |
159 | |
160 | #ifdef MEMOIZE_LOCALS | |
1cc91f1b | 161 | |
0f2d19dd | 162 | SCM * |
6e8d25a6 | 163 | scm_ilookup (SCM iloc, SCM env) |
0f2d19dd JB |
164 | { |
165 | register int ir = SCM_IFRAME (iloc); | |
166 | register SCM er = env; | |
167 | for (; 0 != ir; --ir) | |
168 | er = SCM_CDR (er); | |
169 | er = SCM_CAR (er); | |
170 | for (ir = SCM_IDIST (iloc); 0 != ir; --ir) | |
171 | er = SCM_CDR (er); | |
172 | if (SCM_ICDRP (iloc)) | |
a23afe53 MD |
173 | return SCM_CDRLOC (er); |
174 | return SCM_CARLOC (SCM_CDR (er)); | |
0f2d19dd JB |
175 | } |
176 | #endif | |
177 | ||
f8769b1d MV |
178 | #ifdef USE_THREADS |
179 | ||
180 | /* The Lookup Car Race | |
181 | - by Eva Luator | |
182 | ||
183 | Memoization of variables and special forms is done while executing | |
184 | the code for the first time. As long as there is only one thread | |
185 | everything is fine, but as soon as two threads execute the same | |
186 | code concurrently `for the first time' they can come into conflict. | |
187 | ||
188 | This memoization includes rewriting variable references into more | |
189 | efficient forms and expanding macros. Furthermore, macro expansion | |
190 | includes `compiling' special forms like `let', `cond', etc. into | |
191 | tree-code instructions. | |
192 | ||
193 | There shouldn't normally be a problem with memoizing local and | |
194 | global variable references (into ilocs and glocs), because all | |
195 | threads will mutate the code in *exactly* the same way and (if I | |
196 | read the C code correctly) it is not possible to observe a half-way | |
197 | mutated cons cell. The lookup procedure can handle this | |
198 | transparently without any critical sections. | |
199 | ||
200 | It is different with macro expansion, because macro expansion | |
201 | happens outside of the lookup procedure and can't be | |
202 | undone. Therefore it can't cope with it. It has to indicate | |
203 | failure when it detects a lost race and hope that the caller can | |
204 | handle it. Luckily, it turns out that this is the case. | |
205 | ||
206 | An example to illustrate this: Suppose that the follwing form will | |
207 | be memoized concurrently by two threads | |
208 | ||
209 | (let ((x 12)) x) | |
210 | ||
211 | Let's first examine the lookup of X in the body. The first thread | |
212 | decides that it has to find the symbol "x" in the environment and | |
213 | starts to scan it. Then the other thread takes over and actually | |
214 | overtakes the first. It looks up "x" and substitutes an | |
215 | appropriate iloc for it. Now the first thread continues and | |
216 | completes its lookup. It comes to exactly the same conclusions as | |
217 | the second one and could - without much ado - just overwrite the | |
218 | iloc with the same iloc. | |
219 | ||
220 | But let's see what will happen when the race occurs while looking | |
221 | up the symbol "let" at the start of the form. It could happen that | |
222 | the second thread interrupts the lookup of the first thread and not | |
223 | only substitutes a gloc for it but goes right ahead and replaces it | |
224 | with the compiled form (#@let* (x 12) x). Now, when the first | |
225 | thread completes its lookup, it would replace the #@let* with a | |
226 | gloc pointing to the "let" binding, effectively reverting the form | |
227 | to (let (x 12) x). This is wrong. It has to detect that it has | |
228 | lost the race and the evaluator has to reconsider the changed form | |
229 | completely. | |
230 | ||
231 | This race condition could be resolved with some kind of traffic | |
232 | light (like mutexes) around scm_lookupcar, but I think that it is | |
233 | best to avoid them in this case. They would serialize memoization | |
234 | completely and because lookup involves calling arbitrary Scheme | |
235 | code (via the lookup-thunk), threads could be blocked for an | |
236 | arbitrary amount of time or even deadlock. But with the current | |
237 | solution a lot of unnecessary work is potentially done. */ | |
238 | ||
239 | /* SCM_LOOKUPCAR1 is was SCM_LOOKUPCAR used to be but is allowed to | |
240 | return NULL to indicate a failed lookup due to some race conditions | |
241 | between threads. This only happens when VLOC is the first cell of | |
242 | a special form that will eventually be memoized (like `let', etc.) | |
243 | In that case the whole lookup is bogus and the caller has to | |
244 | reconsider the complete special form. | |
245 | ||
246 | SCM_LOOKUPCAR is still there, of course. It just calls | |
247 | SCM_LOOKUPCAR1 and aborts on recieving NULL. So SCM_LOOKUPCAR | |
248 | should only be called when it is known that VLOC is not the first | |
249 | pair of a special form. Otherwise, use SCM_LOOKUPCAR1 and check | |
26d5b9b4 MD |
250 | for NULL. I think I've found the only places where this |
251 | applies. */ | |
f8769b1d MV |
252 | |
253 | #endif /* USE_THREADS */ | |
1cc91f1b | 254 | |
f25f761d GH |
255 | SCM_SYMBOL (scm_unbound_variable_key, "unbound-variable"); |
256 | ||
d0b7bad7 | 257 | #ifdef USE_THREADS |
8ecf1f13 | 258 | static SCM * |
26d5b9b4 | 259 | scm_lookupcar1 (SCM vloc, SCM genv, int check) |
d0b7bad7 MD |
260 | #else |
261 | SCM * | |
26d5b9b4 | 262 | scm_lookupcar (SCM vloc, SCM genv, int check) |
d0b7bad7 | 263 | #endif |
0f2d19dd JB |
264 | { |
265 | SCM env = genv; | |
e3173f93 JB |
266 | register SCM *al, fl, var = SCM_CAR (vloc); |
267 | #ifdef USE_THREADS | |
268 | register SCM var2 = var; | |
269 | #endif | |
0f2d19dd JB |
270 | #ifdef MEMOIZE_LOCALS |
271 | register SCM iloc = SCM_ILOC00; | |
272 | #endif | |
273 | for (; SCM_NIMP (env); env = SCM_CDR (env)) | |
274 | { | |
790071cd | 275 | if (!SCM_CONSP (SCM_CAR (env))) |
0f2d19dd | 276 | break; |
a23afe53 | 277 | al = SCM_CARLOC (env); |
0f2d19dd JB |
278 | for (fl = SCM_CAR (*al); SCM_NIMP (fl); fl = SCM_CDR (fl)) |
279 | { | |
280 | if (SCM_NCONSP (fl)) | |
33b97402 | 281 | { |
cf498326 | 282 | if (SCM_EQ_P (fl, var)) |
0f2d19dd JB |
283 | { |
284 | #ifdef MEMOIZE_LOCALS | |
f8769b1d | 285 | #ifdef USE_THREADS |
cf498326 | 286 | if (! SCM_EQ_P (SCM_CAR (vloc), var)) |
f8769b1d MV |
287 | goto race; |
288 | #endif | |
3201d763 | 289 | SCM_SET_CELL_WORD_0 (vloc, SCM_UNPACK (iloc) + SCM_ICDR); |
0f2d19dd | 290 | #endif |
a23afe53 | 291 | return SCM_CDRLOC (*al); |
0f2d19dd | 292 | } |
33b97402 MD |
293 | else |
294 | break; | |
295 | } | |
a23afe53 | 296 | al = SCM_CDRLOC (*al); |
cf498326 | 297 | if (SCM_EQ_P (SCM_CAR (fl), var)) |
0f2d19dd JB |
298 | { |
299 | #ifdef MEMOIZE_LOCALS | |
cf7c17e9 | 300 | #ifndef SCM_RECKLESS /* letrec inits to SCM_UNDEFINED */ |
0f2d19dd JB |
301 | if (SCM_UNBNDP (SCM_CAR (*al))) |
302 | { | |
303 | env = SCM_EOL; | |
304 | goto errout; | |
305 | } | |
f8769b1d MV |
306 | #endif |
307 | #ifdef USE_THREADS | |
308 | if (SCM_CAR (vloc) != var) | |
309 | goto race; | |
0f2d19dd | 310 | #endif |
a23afe53 | 311 | SCM_SETCAR (vloc, iloc); |
0f2d19dd | 312 | #endif |
a23afe53 | 313 | return SCM_CARLOC (*al); |
0f2d19dd JB |
314 | } |
315 | #ifdef MEMOIZE_LOCALS | |
3201d763 | 316 | iloc = SCM_PACK (SCM_UNPACK (iloc) + SCM_IDINC); |
0f2d19dd JB |
317 | #endif |
318 | } | |
319 | #ifdef MEMOIZE_LOCALS | |
3201d763 | 320 | iloc = SCM_PACK ((~SCM_IDSTMSK) & (SCM_UNPACK(iloc) + SCM_IFRINC)); |
0f2d19dd JB |
321 | #endif |
322 | } | |
323 | { | |
324 | SCM top_thunk, vcell; | |
790071cd | 325 | if (SCM_NIMP (env)) |
0f2d19dd | 326 | { |
790071cd | 327 | top_thunk = SCM_CAR (env); /* env now refers to a top level env thunk */ |
0f2d19dd JB |
328 | env = SCM_CDR (env); |
329 | } | |
330 | else | |
331 | top_thunk = SCM_BOOL_F; | |
332 | vcell = scm_sym2vcell (var, top_thunk, SCM_BOOL_F); | |
cf498326 | 333 | if (SCM_FALSEP (vcell)) |
0f2d19dd JB |
334 | goto errout; |
335 | else | |
336 | var = vcell; | |
337 | } | |
cf7c17e9 | 338 | #ifndef SCM_RECKLESS |
0f2d19dd JB |
339 | if (SCM_NNULLP (env) || SCM_UNBNDP (SCM_CDR (var))) |
340 | { | |
341 | var = SCM_CAR (var); | |
342 | errout: | |
f5bf2977 | 343 | /* scm_everr (vloc, genv,...) */ |
26d5b9b4 | 344 | if (check) |
f25f761d GH |
345 | { |
346 | if (SCM_NULLP (env)) | |
70d63753 | 347 | scm_error (scm_unbound_variable_key, NULL, "Unbound variable: ~S", |
f25f761d GH |
348 | scm_cons (var, SCM_EOL), SCM_BOOL_F); |
349 | else | |
70d63753 | 350 | scm_misc_error (NULL, "Damaged environment: ~S", |
f25f761d GH |
351 | scm_cons (var, SCM_EOL)); |
352 | } | |
09e4d064 DH |
353 | else { |
354 | /* A variable could not be found, but we shall not throw an error. */ | |
355 | static SCM undef_object = SCM_UNDEFINED; | |
3201d763 | 356 | return &undef_object; |
09e4d064 | 357 | } |
0f2d19dd JB |
358 | } |
359 | #endif | |
f8769b1d MV |
360 | #ifdef USE_THREADS |
361 | if (SCM_CAR (vloc) != var2) | |
362 | { | |
363 | /* Some other thread has changed the very cell we are working | |
364 | on. In effect, it must have done our job or messed it up | |
365 | completely. */ | |
366 | race: | |
367 | var = SCM_CAR (vloc); | |
3201d763 | 368 | if (SCM_ITAG3 (var) == scm_tc3_cons_gloc) |
f8769b1d MV |
369 | return SCM_GLOC_VAL_LOC (var); |
370 | #ifdef MEMOIZE_LOCALS | |
d1ca2c64 | 371 | if (SCM_ITAG7 (var) == SCM_ITAG7 (SCM_ILOC00)) |
f8769b1d MV |
372 | return scm_ilookup (var, genv); |
373 | #endif | |
374 | /* We can't cope with anything else than glocs and ilocs. When | |
375 | a special form has been memoized (i.e. `let' into `#@let') we | |
376 | return NULL and expect the calling function to do the right | |
377 | thing. For the evaluator, this means going back and redoing | |
378 | the dispatch on the car of the form. */ | |
379 | return NULL; | |
380 | } | |
381 | #endif /* USE_THREADS */ | |
382 | ||
3201d763 | 383 | SCM_SET_CELL_WORD_0 (vloc, SCM_UNPACK (var) + scm_tc3_cons_gloc); |
0f2d19dd | 384 | /* Except wait...what if the var is not a vcell, |
f8769b1d | 385 | * but syntax or something.... */ |
a23afe53 | 386 | return SCM_CDRLOC (var); |
0f2d19dd JB |
387 | } |
388 | ||
f8769b1d MV |
389 | #ifdef USE_THREADS |
390 | SCM * | |
6e8d25a6 | 391 | scm_lookupcar (SCM vloc, SCM genv, int check) |
f8769b1d | 392 | { |
26d5b9b4 | 393 | SCM *loc = scm_lookupcar1 (vloc, genv, check); |
f8769b1d MV |
394 | if (loc == NULL) |
395 | abort (); | |
396 | return loc; | |
397 | } | |
f8769b1d MV |
398 | #endif |
399 | ||
0f2d19dd | 400 | #define unmemocar scm_unmemocar |
1cc91f1b | 401 | |
0f2d19dd | 402 | SCM |
6e8d25a6 | 403 | scm_unmemocar (SCM form, SCM env) |
0f2d19dd | 404 | { |
0f2d19dd JB |
405 | SCM c; |
406 | ||
407 | if (SCM_IMP (form)) | |
408 | return form; | |
409 | c = SCM_CAR (form); | |
b0c54567 | 410 | if (SCM_ITAG3 (c) == scm_tc3_cons_gloc) |
a963f787 | 411 | SCM_SETCAR (form, SCM_GLOC_SYM (c)); |
0f2d19dd | 412 | #ifdef MEMOIZE_LOCALS |
6dbd0af5 | 413 | #ifdef DEBUG_EXTENSIONS |
0f2d19dd JB |
414 | else if (SCM_ILOCP (c)) |
415 | { | |
b0c54567 DH |
416 | int ir; |
417 | ||
0f2d19dd JB |
418 | for (ir = SCM_IFRAME (c); ir != 0; --ir) |
419 | env = SCM_CDR (env); | |
420 | env = SCM_CAR (SCM_CAR (env)); | |
421 | for (ir = SCM_IDIST (c); ir != 0; --ir) | |
422 | env = SCM_CDR (env); | |
a23afe53 | 423 | SCM_SETCAR (form, SCM_ICDRP (c) ? env : SCM_CAR (env)); |
0f2d19dd | 424 | } |
6dbd0af5 | 425 | #endif |
0f2d19dd JB |
426 | #endif |
427 | return form; | |
428 | } | |
429 | ||
1cc91f1b | 430 | |
0f2d19dd | 431 | SCM |
6e8d25a6 | 432 | scm_eval_car (SCM pair, SCM env) |
0f2d19dd | 433 | { |
6cb702da | 434 | return SCM_XEVALCAR (pair, env); |
0f2d19dd JB |
435 | } |
436 | ||
437 | \f | |
438 | /* | |
439 | * The following rewrite expressions and | |
440 | * some memoized forms have different syntax | |
441 | */ | |
442 | ||
3eeba8d4 JB |
443 | const char scm_s_expression[] = "missing or extra expression"; |
444 | const char scm_s_test[] = "bad test"; | |
445 | const char scm_s_body[] = "bad body"; | |
446 | const char scm_s_bindings[] = "bad bindings"; | |
447 | const char scm_s_variable[] = "bad variable"; | |
448 | const char scm_s_clauses[] = "bad or missing clauses"; | |
449 | const char scm_s_formals[] = "bad formals"; | |
0f2d19dd | 450 | |
85db4a2c DH |
451 | SCM_GLOBAL_SYMBOL (scm_sym_dot, "."); |
452 | SCM_GLOBAL_SYMBOL (scm_sym_arrow, "=>"); | |
453 | SCM_GLOBAL_SYMBOL (scm_sym_else, "else"); | |
454 | SCM_GLOBAL_SYMBOL (scm_sym_unquote, "unquote"); | |
455 | SCM_GLOBAL_SYMBOL (scm_sym_uq_splicing, "unquote-splicing"); | |
81123e6d MD |
456 | |
457 | SCM scm_f_apply; | |
b8229a3b | 458 | |
6dbd0af5 | 459 | #ifdef DEBUG_EXTENSIONS |
85db4a2c DH |
460 | SCM_GLOBAL_SYMBOL (scm_sym_enter_frame, "enter-frame"); |
461 | SCM_GLOBAL_SYMBOL (scm_sym_apply_frame, "apply-frame"); | |
462 | SCM_GLOBAL_SYMBOL (scm_sym_exit_frame, "exit-frame"); | |
463 | SCM_GLOBAL_SYMBOL (scm_sym_trace, "trace"); | |
6dbd0af5 | 464 | #endif |
0f2d19dd | 465 | |
0f2d19dd | 466 | |
26d5b9b4 MD |
467 | /* Check that the body denoted by XORIG is valid and rewrite it into |
468 | its internal form. The internal form of a body is just the body | |
469 | itself, but prefixed with an ISYM that denotes to what kind of | |
470 | outer construct this body belongs. A lambda body starts with | |
471 | SCM_IM_LAMBDA, for example, a body of a let starts with SCM_IM_LET, | |
472 | etc. The one exception is a body that belongs to a letrec that has | |
473 | been formed by rewriting internal defines: it starts with | |
474 | SCM_IM_DEFINE. */ | |
475 | ||
476 | /* XXX - Besides controlling the rewriting of internal defines, the | |
477 | additional ISYM could be used for improved error messages. | |
478 | This is not done yet. */ | |
479 | ||
480 | static SCM | |
6e8d25a6 | 481 | scm_m_body (SCM op, SCM xorig, const char *what) |
26d5b9b4 | 482 | { |
ab66ae47 | 483 | SCM_ASSYNT (scm_ilength (xorig) >= 1, xorig, scm_s_expression, what); |
26d5b9b4 MD |
484 | |
485 | /* Don't add another ISYM if one is present already. */ | |
486 | if (SCM_ISYMP (SCM_CAR (xorig))) | |
487 | return xorig; | |
488 | ||
489 | /* Retain possible doc string. */ | |
44d3cb0d | 490 | if (!SCM_CONSP (SCM_CAR (xorig))) |
26d5b9b4 MD |
491 | { |
492 | if (SCM_NNULLP (SCM_CDR(xorig))) | |
493 | return scm_cons (SCM_CAR (xorig), | |
494 | scm_m_body (op, SCM_CDR(xorig), what)); | |
495 | return xorig; | |
496 | } | |
497 | ||
ab66ae47 | 498 | return scm_cons (op, xorig); |
26d5b9b4 MD |
499 | } |
500 | ||
b8229a3b | 501 | SCM_SYNTAX(s_quote,"quote", scm_makmmacro, scm_m_quote); |
2f0d1375 | 502 | SCM_GLOBAL_SYMBOL(scm_sym_quote, s_quote); |
1cc91f1b | 503 | |
0f2d19dd | 504 | SCM |
6e8d25a6 | 505 | scm_m_quote (SCM xorig, SCM env) |
0f2d19dd | 506 | { |
26d5b9b4 MD |
507 | SCM x = scm_copy_tree (SCM_CDR (xorig)); |
508 | ||
6cb702da | 509 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, |
b8229a3b | 510 | xorig, scm_s_expression, s_quote); |
3a3111a8 | 511 | return scm_cons (SCM_IM_QUOTE, x); |
0f2d19dd JB |
512 | } |
513 | ||
514 | ||
1cc91f1b | 515 | |
b8229a3b | 516 | SCM_SYNTAX(s_begin, "begin", scm_makmmacro, scm_m_begin); |
2f0d1375 | 517 | SCM_GLOBAL_SYMBOL(scm_sym_begin, s_begin); |
b8229a3b | 518 | |
0f2d19dd | 519 | SCM |
6e8d25a6 | 520 | scm_m_begin (SCM xorig, SCM env) |
0f2d19dd | 521 | { |
6cb702da | 522 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) >= 1, |
b8229a3b | 523 | xorig, scm_s_expression, s_begin); |
3a3111a8 | 524 | return scm_cons (SCM_IM_BEGIN, SCM_CDR (xorig)); |
0f2d19dd JB |
525 | } |
526 | ||
b8229a3b | 527 | SCM_SYNTAX(s_if, "if", scm_makmmacro, scm_m_if); |
2f0d1375 | 528 | SCM_GLOBAL_SYMBOL(scm_sym_if, s_if); |
1cc91f1b | 529 | |
0f2d19dd | 530 | SCM |
6e8d25a6 | 531 | scm_m_if (SCM xorig, SCM env) |
0f2d19dd JB |
532 | { |
533 | int len = scm_ilength (SCM_CDR (xorig)); | |
6cb702da | 534 | SCM_ASSYNT (len >= 2 && len <= 3, xorig, scm_s_expression, "if"); |
3a3111a8 | 535 | return scm_cons (SCM_IM_IF, SCM_CDR (xorig)); |
0f2d19dd JB |
536 | } |
537 | ||
538 | ||
89efbff4 MD |
539 | /* Will go into the RnRS module when Guile is factorized. |
540 | SCM_SYNTAX(scm_s_set_x,"set!", scm_makmmacro, scm_m_set_x); */ | |
541 | const char scm_s_set_x[] = "set!"; | |
542 | SCM_GLOBAL_SYMBOL(scm_sym_set_x, scm_s_set_x); | |
1cc91f1b | 543 | |
0f2d19dd | 544 | SCM |
6e8d25a6 | 545 | scm_m_set_x (SCM xorig, SCM env) |
0f2d19dd | 546 | { |
6dbd0af5 | 547 | SCM x = SCM_CDR (xorig); |
89efbff4 | 548 | SCM_ASSYNT (2 == scm_ilength (x), xorig, scm_s_expression, scm_s_set_x); |
cabe682c | 549 | SCM_ASSYNT (SCM_SYMBOLP (SCM_CAR (x)), |
89efbff4 | 550 | xorig, scm_s_variable, scm_s_set_x); |
3a3111a8 | 551 | return scm_cons (SCM_IM_SET_X, x); |
0f2d19dd JB |
552 | } |
553 | ||
554 | ||
b8229a3b | 555 | SCM_SYNTAX(s_and, "and", scm_makmmacro, scm_m_and); |
2f0d1375 | 556 | SCM_GLOBAL_SYMBOL(scm_sym_and, s_and); |
1cc91f1b | 557 | |
0f2d19dd | 558 | SCM |
6e8d25a6 | 559 | scm_m_and (SCM xorig, SCM env) |
0f2d19dd JB |
560 | { |
561 | int len = scm_ilength (SCM_CDR (xorig)); | |
b8229a3b | 562 | SCM_ASSYNT (len >= 0, xorig, scm_s_test, s_and); |
0f2d19dd | 563 | if (len >= 1) |
3a3111a8 | 564 | return scm_cons (SCM_IM_AND, SCM_CDR (xorig)); |
0f2d19dd JB |
565 | else |
566 | return SCM_BOOL_T; | |
567 | } | |
568 | ||
b8229a3b | 569 | SCM_SYNTAX(s_or,"or", scm_makmmacro, scm_m_or); |
2f0d1375 | 570 | SCM_GLOBAL_SYMBOL(scm_sym_or,s_or); |
1cc91f1b | 571 | |
0f2d19dd | 572 | SCM |
6e8d25a6 | 573 | scm_m_or (SCM xorig, SCM env) |
0f2d19dd JB |
574 | { |
575 | int len = scm_ilength (SCM_CDR (xorig)); | |
b8229a3b | 576 | SCM_ASSYNT (len >= 0, xorig, scm_s_test, s_or); |
0f2d19dd | 577 | if (len >= 1) |
3a3111a8 | 578 | return scm_cons (SCM_IM_OR, SCM_CDR (xorig)); |
0f2d19dd JB |
579 | else |
580 | return SCM_BOOL_F; | |
581 | } | |
582 | ||
583 | ||
b8229a3b | 584 | SCM_SYNTAX(s_case, "case", scm_makmmacro, scm_m_case); |
2f0d1375 | 585 | SCM_GLOBAL_SYMBOL(scm_sym_case, s_case); |
1cc91f1b | 586 | |
0f2d19dd | 587 | SCM |
6e8d25a6 | 588 | scm_m_case (SCM xorig, SCM env) |
0f2d19dd | 589 | { |
26d5b9b4 | 590 | SCM proc, cdrx = scm_list_copy (SCM_CDR (xorig)), x = cdrx; |
b8229a3b | 591 | SCM_ASSYNT (scm_ilength (x) >= 2, xorig, scm_s_clauses, s_case); |
0f2d19dd JB |
592 | while (SCM_NIMP (x = SCM_CDR (x))) |
593 | { | |
594 | proc = SCM_CAR (x); | |
b8229a3b | 595 | SCM_ASSYNT (scm_ilength (proc) >= 2, xorig, scm_s_clauses, s_case); |
6cb702da | 596 | SCM_ASSYNT (scm_ilength (SCM_CAR (proc)) >= 0 |
cf498326 | 597 | || SCM_EQ_P (scm_sym_else, SCM_CAR (proc)), |
b8229a3b | 598 | xorig, scm_s_clauses, s_case); |
0f2d19dd | 599 | } |
3a3111a8 | 600 | return scm_cons (SCM_IM_CASE, cdrx); |
0f2d19dd JB |
601 | } |
602 | ||
603 | ||
b8229a3b | 604 | SCM_SYNTAX(s_cond, "cond", scm_makmmacro, scm_m_cond); |
2f0d1375 | 605 | SCM_GLOBAL_SYMBOL(scm_sym_cond, s_cond); |
b8229a3b | 606 | |
1cc91f1b | 607 | |
0f2d19dd | 608 | SCM |
6e8d25a6 | 609 | scm_m_cond (SCM xorig, SCM env) |
0f2d19dd | 610 | { |
26d5b9b4 | 611 | SCM arg1, cdrx = scm_list_copy (SCM_CDR (xorig)), x = cdrx; |
0f2d19dd | 612 | int len = scm_ilength (x); |
b8229a3b | 613 | SCM_ASSYNT (len >= 1, xorig, scm_s_clauses, s_cond); |
0f2d19dd JB |
614 | while (SCM_NIMP (x)) |
615 | { | |
616 | arg1 = SCM_CAR (x); | |
617 | len = scm_ilength (arg1); | |
b8229a3b | 618 | SCM_ASSYNT (len >= 1, xorig, scm_s_clauses, s_cond); |
cf498326 | 619 | if (SCM_EQ_P (scm_sym_else, SCM_CAR (arg1))) |
0f2d19dd | 620 | { |
6cb702da | 621 | SCM_ASSYNT (SCM_NULLP (SCM_CDR (x)) && len >= 2, |
b8229a3b | 622 | xorig, "bad ELSE clause", s_cond); |
a23afe53 | 623 | SCM_SETCAR (arg1, SCM_BOOL_T); |
0f2d19dd | 624 | } |
cf498326 | 625 | if (len >= 2 && SCM_EQ_P (scm_sym_arrow, SCM_CAR (SCM_CDR (arg1)))) |
6cb702da | 626 | SCM_ASSYNT (3 == len && SCM_NIMP (SCM_CAR (SCM_CDR (SCM_CDR (arg1)))), |
b8229a3b | 627 | xorig, "bad recipient", s_cond); |
0f2d19dd JB |
628 | x = SCM_CDR (x); |
629 | } | |
3a3111a8 | 630 | return scm_cons (SCM_IM_COND, cdrx); |
0f2d19dd JB |
631 | } |
632 | ||
b8229a3b | 633 | SCM_SYNTAX(s_lambda, "lambda", scm_makmmacro, scm_m_lambda); |
2f0d1375 | 634 | SCM_GLOBAL_SYMBOL(scm_sym_lambda, s_lambda); |
1cc91f1b | 635 | |
0f2d19dd | 636 | SCM |
6e8d25a6 | 637 | scm_m_lambda (SCM xorig, SCM env) |
0f2d19dd JB |
638 | { |
639 | SCM proc, x = SCM_CDR (xorig); | |
26d5b9b4 | 640 | if (scm_ilength (x) < 2) |
0f2d19dd JB |
641 | goto badforms; |
642 | proc = SCM_CAR (x); | |
33b97402 MD |
643 | if (SCM_NULLP (proc)) |
644 | goto memlambda; | |
cf498326 | 645 | if (SCM_EQ_P (SCM_IM_LET, proc)) /* named let */ |
26d5b9b4 | 646 | goto memlambda; |
33b97402 MD |
647 | if (SCM_IMP (proc)) |
648 | goto badforms; | |
649 | if (SCM_SYMBOLP (proc)) | |
650 | goto memlambda; | |
651 | if (SCM_NCONSP (proc)) | |
652 | goto badforms; | |
653 | while (SCM_NIMP (proc)) | |
0f2d19dd | 654 | { |
33b97402 MD |
655 | if (SCM_NCONSP (proc)) |
656 | { | |
0f2d19dd | 657 | if (!SCM_SYMBOLP (proc)) |
33b97402 MD |
658 | goto badforms; |
659 | else | |
660 | goto memlambda; | |
661 | } | |
0c95b57d | 662 | if (!SCM_SYMBOLP (SCM_CAR (proc))) |
0f2d19dd JB |
663 | goto badforms; |
664 | proc = SCM_CDR (proc); | |
665 | } | |
ff467021 | 666 | if (SCM_NNULLP (proc)) |
26d5b9b4 MD |
667 | { |
668 | badforms: | |
669 | scm_wta (xorig, scm_s_formals, s_lambda); | |
670 | } | |
671 | ||
672 | memlambda: | |
3a3111a8 MD |
673 | return scm_cons2 (SCM_IM_LAMBDA, SCM_CAR (x), |
674 | scm_m_body (SCM_IM_LAMBDA, SCM_CDR (x), s_lambda)); | |
0f2d19dd JB |
675 | } |
676 | ||
b8229a3b | 677 | SCM_SYNTAX(s_letstar,"let*", scm_makmmacro, scm_m_letstar); |
2f0d1375 | 678 | SCM_GLOBAL_SYMBOL(scm_sym_letstar,s_letstar); |
0f2d19dd | 679 | |
1cc91f1b | 680 | |
0f2d19dd | 681 | SCM |
6e8d25a6 | 682 | scm_m_letstar (SCM xorig, SCM env) |
0f2d19dd JB |
683 | { |
684 | SCM x = SCM_CDR (xorig), arg1, proc, vars = SCM_EOL, *varloc = &vars; | |
685 | int len = scm_ilength (x); | |
b8229a3b | 686 | SCM_ASSYNT (len >= 2, xorig, scm_s_body, s_letstar); |
0f2d19dd | 687 | proc = SCM_CAR (x); |
b8229a3b | 688 | SCM_ASSYNT (scm_ilength (proc) >= 0, xorig, scm_s_bindings, s_letstar); |
ff467021 | 689 | while (SCM_NIMP (proc)) |
0f2d19dd JB |
690 | { |
691 | arg1 = SCM_CAR (proc); | |
b8229a3b | 692 | SCM_ASSYNT (2 == scm_ilength (arg1), xorig, scm_s_bindings, s_letstar); |
0c95b57d | 693 | SCM_ASSYNT (SCM_SYMBOLP (SCM_CAR (arg1)), xorig, scm_s_variable, s_letstar); |
0f2d19dd | 694 | *varloc = scm_cons2 (SCM_CAR (arg1), SCM_CAR (SCM_CDR (arg1)), SCM_EOL); |
a23afe53 | 695 | varloc = SCM_CDRLOC (SCM_CDR (*varloc)); |
0f2d19dd JB |
696 | proc = SCM_CDR (proc); |
697 | } | |
698 | x = scm_cons (vars, SCM_CDR (x)); | |
26d5b9b4 | 699 | |
3a3111a8 MD |
700 | return scm_cons2 (SCM_IM_LETSTAR, SCM_CAR (x), |
701 | scm_m_body (SCM_IM_LETSTAR, SCM_CDR (x), s_letstar)); | |
0f2d19dd JB |
702 | } |
703 | ||
704 | /* DO gets the most radically altered syntax | |
705 | (do ((<var1> <init1> <step1>) | |
706 | (<var2> <init2>) | |
707 | ... ) | |
708 | (<test> <return>) | |
709 | <body>) | |
710 | ;; becomes | |
711 | (do_mem (varn ... var2 var1) | |
712 | (<init1> <init2> ... <initn>) | |
713 | (<test> <return>) | |
714 | (<body>) | |
715 | <step1> <step2> ... <stepn>) ;; missing steps replaced by var | |
716 | */ | |
717 | ||
b8229a3b | 718 | SCM_SYNTAX(s_do, "do", scm_makmmacro, scm_m_do); |
2f0d1375 | 719 | SCM_GLOBAL_SYMBOL(scm_sym_do, s_do); |
1cc91f1b | 720 | |
0f2d19dd | 721 | SCM |
6e8d25a6 | 722 | scm_m_do (SCM xorig, SCM env) |
0f2d19dd JB |
723 | { |
724 | SCM x = SCM_CDR (xorig), arg1, proc; | |
725 | SCM vars = SCM_EOL, inits = SCM_EOL, steps = SCM_EOL; | |
726 | SCM *initloc = &inits, *steploc = &steps; | |
727 | int len = scm_ilength (x); | |
6cb702da | 728 | SCM_ASSYNT (len >= 2, xorig, scm_s_test, "do"); |
0f2d19dd | 729 | proc = SCM_CAR (x); |
6cb702da | 730 | SCM_ASSYNT (scm_ilength (proc) >= 0, xorig, scm_s_bindings, "do"); |
ff467021 | 731 | while (SCM_NIMP(proc)) |
0f2d19dd JB |
732 | { |
733 | arg1 = SCM_CAR (proc); | |
734 | len = scm_ilength (arg1); | |
6cb702da | 735 | SCM_ASSYNT (2 == len || 3 == len, xorig, scm_s_bindings, "do"); |
0c95b57d | 736 | SCM_ASSYNT (SCM_SYMBOLP (SCM_CAR (arg1)), xorig, scm_s_variable, "do"); |
0f2d19dd JB |
737 | /* vars reversed here, inits and steps reversed at evaluation */ |
738 | vars = scm_cons (SCM_CAR (arg1), vars); /* variable */ | |
739 | arg1 = SCM_CDR (arg1); | |
740 | *initloc = scm_cons (SCM_CAR (arg1), SCM_EOL); /* init */ | |
a23afe53 | 741 | initloc = SCM_CDRLOC (*initloc); |
0f2d19dd JB |
742 | arg1 = SCM_CDR (arg1); |
743 | *steploc = scm_cons (SCM_IMP (arg1) ? SCM_CAR (vars) : SCM_CAR (arg1), SCM_EOL); /* step */ | |
a23afe53 | 744 | steploc = SCM_CDRLOC (*steploc); |
0f2d19dd JB |
745 | proc = SCM_CDR (proc); |
746 | } | |
747 | x = SCM_CDR (x); | |
6cb702da | 748 | SCM_ASSYNT (scm_ilength (SCM_CAR (x)) >= 1, xorig, scm_s_test, "do"); |
0f2d19dd JB |
749 | x = scm_cons2 (SCM_CAR (x), SCM_CDR (x), steps); |
750 | x = scm_cons2 (vars, inits, x); | |
3a3111a8 | 751 | return scm_cons (SCM_IM_DO, x); |
0f2d19dd JB |
752 | } |
753 | ||
6dbd0af5 MD |
754 | /* evalcar is small version of inline EVALCAR when we don't care about |
755 | * speed | |
756 | */ | |
757 | #define evalcar scm_eval_car | |
0f2d19dd | 758 | |
1cc91f1b | 759 | |
1bbd0b84 | 760 | static SCM iqq (SCM form, SCM env, int depth); |
1cc91f1b | 761 | |
b8229a3b | 762 | SCM_SYNTAX(s_quasiquote, "quasiquote", scm_makacro, scm_m_quasiquote); |
2f0d1375 | 763 | SCM_GLOBAL_SYMBOL(scm_sym_quasiquote, s_quasiquote); |
b8229a3b MS |
764 | |
765 | SCM | |
6e8d25a6 | 766 | scm_m_quasiquote (SCM xorig, SCM env) |
b8229a3b MS |
767 | { |
768 | SCM x = SCM_CDR (xorig); | |
769 | SCM_ASSYNT (scm_ilength (x) == 1, xorig, scm_s_expression, s_quasiquote); | |
770 | return iqq (SCM_CAR (x), env, 1); | |
771 | } | |
772 | ||
773 | ||
0f2d19dd | 774 | static SCM |
1bbd0b84 | 775 | iqq (SCM form,SCM env,int depth) |
0f2d19dd JB |
776 | { |
777 | SCM tmp; | |
778 | int edepth = depth; | |
ff467021 JB |
779 | if (SCM_IMP(form)) |
780 | return form; | |
0f2d19dd JB |
781 | if (SCM_VECTORP (form)) |
782 | { | |
b5c2579a | 783 | long i = SCM_VECTOR_LENGTH (form); |
0f2d19dd JB |
784 | SCM *data = SCM_VELTS (form); |
785 | tmp = SCM_EOL; | |
786 | for (; --i >= 0;) | |
787 | tmp = scm_cons (data[i], tmp); | |
788 | return scm_vector (iqq (tmp, env, depth)); | |
789 | } | |
ff467021 JB |
790 | if (SCM_NCONSP(form)) |
791 | return form; | |
0f2d19dd | 792 | tmp = SCM_CAR (form); |
cf498326 | 793 | if (SCM_EQ_P (scm_sym_quasiquote, tmp)) |
0f2d19dd JB |
794 | { |
795 | depth++; | |
796 | goto label; | |
797 | } | |
cf498326 | 798 | if (SCM_EQ_P (scm_sym_unquote, tmp)) |
0f2d19dd JB |
799 | { |
800 | --depth; | |
801 | label: | |
802 | form = SCM_CDR (form); | |
0c95b57d GB |
803 | SCM_ASSERT (SCM_ECONSP (form) && SCM_NULLP (SCM_CDR (form)), |
804 | form, SCM_ARG1, s_quasiquote); | |
0f2d19dd JB |
805 | if (0 == depth) |
806 | return evalcar (form, env); | |
807 | return scm_cons2 (tmp, iqq (SCM_CAR (form), env, depth), SCM_EOL); | |
808 | } | |
cf498326 | 809 | if (SCM_NIMP (tmp) && (SCM_EQ_P (scm_sym_uq_splicing, SCM_CAR (tmp)))) |
0f2d19dd JB |
810 | { |
811 | tmp = SCM_CDR (tmp); | |
812 | if (0 == --edepth) | |
813 | return scm_append (scm_cons2 (evalcar (tmp, env), iqq (SCM_CDR (form), env, depth), SCM_EOL)); | |
814 | } | |
815 | return scm_cons (iqq (SCM_CAR (form), env, edepth), iqq (SCM_CDR (form), env, depth)); | |
816 | } | |
817 | ||
818 | /* Here are acros which return values rather than code. */ | |
819 | ||
a570e93a MD |
820 | SCM_SYNTAX (s_delay, "delay", scm_makmmacro, scm_m_delay); |
821 | SCM_GLOBAL_SYMBOL (scm_sym_delay, s_delay); | |
1cc91f1b | 822 | |
0f2d19dd | 823 | SCM |
6e8d25a6 | 824 | scm_m_delay (SCM xorig, SCM env) |
0f2d19dd | 825 | { |
6cb702da | 826 | SCM_ASSYNT (scm_ilength (xorig) == 2, xorig, scm_s_expression, s_delay); |
a570e93a | 827 | return scm_cons2 (SCM_IM_DELAY, SCM_EOL, SCM_CDR (xorig)); |
0f2d19dd JB |
828 | } |
829 | ||
1cc91f1b | 830 | |
b8229a3b | 831 | SCM_SYNTAX(s_define, "define", scm_makmmacro, scm_m_define); |
2f0d1375 | 832 | SCM_GLOBAL_SYMBOL(scm_sym_define, s_define); |
1cc91f1b | 833 | |
0f2d19dd | 834 | SCM |
6e8d25a6 | 835 | scm_m_define (SCM x, SCM env) |
0f2d19dd JB |
836 | { |
837 | SCM proc, arg1 = x; | |
838 | x = SCM_CDR (x); | |
b8229a3b | 839 | SCM_ASSYNT (scm_ilength (x) >= 2, arg1, scm_s_expression, s_define); |
0f2d19dd JB |
840 | proc = SCM_CAR (x); |
841 | x = SCM_CDR (x); | |
0c95b57d | 842 | while (SCM_CONSP (proc)) |
0f2d19dd | 843 | { /* nested define syntax */ |
2f0d1375 | 844 | x = scm_cons (scm_cons2 (scm_sym_lambda, SCM_CDR (proc), x), SCM_EOL); |
0f2d19dd JB |
845 | proc = SCM_CAR (proc); |
846 | } | |
0c95b57d | 847 | SCM_ASSYNT (SCM_SYMBOLP (proc), |
b8229a3b MS |
848 | arg1, scm_s_variable, s_define); |
849 | SCM_ASSYNT (1 == scm_ilength (x), arg1, scm_s_expression, s_define); | |
0f2d19dd JB |
850 | if (SCM_TOP_LEVEL (env)) |
851 | { | |
852 | x = evalcar (x, env); | |
6dbd0af5 | 853 | #ifdef DEBUG_EXTENSIONS |
80ea260c MD |
854 | if (SCM_REC_PROCNAMES_P && SCM_NIMP (x)) |
855 | { | |
856 | arg1 = x; | |
857 | proc: | |
858 | if (SCM_CLOSUREP (arg1) | |
859 | /* Only the first definition determines the name. */ | |
cf498326 | 860 | && SCM_FALSEP (scm_procedure_property (arg1, scm_sym_name))) |
2f0d1375 | 861 | scm_set_procedure_property_x (arg1, scm_sym_name, proc); |
80ea260c | 862 | else if (SCM_TYP16 (arg1) == scm_tc16_macro |
cf498326 | 863 | && !SCM_EQ_P (SCM_CDR (arg1), arg1)) |
80ea260c MD |
864 | { |
865 | arg1 = SCM_CDR (arg1); | |
866 | goto proc; | |
867 | } | |
868 | } | |
6dbd0af5 | 869 | #endif |
6cb702da | 870 | arg1 = scm_sym2vcell (proc, scm_env_top_level (env), SCM_BOOL_T); |
a23afe53 | 871 | SCM_SETCDR (arg1, x); |
0f2d19dd | 872 | #ifdef SICP |
2f0d1375 | 873 | return scm_cons2 (scm_sym_quote, SCM_CAR (arg1), SCM_EOL); |
0f2d19dd JB |
874 | #else |
875 | return SCM_UNSPECIFIED; | |
876 | #endif | |
877 | } | |
878 | return scm_cons2 (SCM_IM_DEFINE, proc, x); | |
879 | } | |
6dbd0af5 | 880 | |
0f2d19dd JB |
881 | /* end of acros */ |
882 | ||
26d5b9b4 | 883 | static SCM |
6e8d25a6 | 884 | scm_m_letrec1 (SCM op, SCM imm, SCM xorig, SCM env) |
0f2d19dd JB |
885 | { |
886 | SCM cdrx = SCM_CDR (xorig); /* locally mutable version of form */ | |
3db4adfc | 887 | char *what = SCM_SYMBOL_CHARS (SCM_CAR (xorig)); |
0f2d19dd JB |
888 | SCM x = cdrx, proc, arg1; /* structure traversers */ |
889 | SCM vars = SCM_EOL, inits = SCM_EOL, *initloc = &inits; | |
890 | ||
0f2d19dd | 891 | proc = SCM_CAR (x); |
ab66ae47 | 892 | SCM_ASSYNT (scm_ilength (proc) >= 1, xorig, scm_s_bindings, what); |
0f2d19dd JB |
893 | do |
894 | { | |
895 | /* vars scm_list reversed here, inits reversed at evaluation */ | |
896 | arg1 = SCM_CAR (proc); | |
ab66ae47 DH |
897 | SCM_ASSYNT (2 == scm_ilength (arg1), xorig, scm_s_bindings, what); |
898 | SCM_ASSYNT (SCM_SYMBOLP (SCM_CAR (arg1)), xorig, scm_s_variable, what); | |
0f2d19dd JB |
899 | vars = scm_cons (SCM_CAR (arg1), vars); |
900 | *initloc = scm_cons (SCM_CAR (SCM_CDR (arg1)), SCM_EOL); | |
a23afe53 | 901 | initloc = SCM_CDRLOC (*initloc); |
0f2d19dd | 902 | } |
ff467021 | 903 | while (SCM_NIMP (proc = SCM_CDR (proc))); |
26d5b9b4 | 904 | |
3a3111a8 MD |
905 | return scm_cons2 (op, vars, |
906 | scm_cons (inits, scm_m_body (imm, SCM_CDR (x), what))); | |
0f2d19dd JB |
907 | } |
908 | ||
26d5b9b4 | 909 | SCM_SYNTAX(s_letrec, "letrec", scm_makmmacro, scm_m_letrec); |
2f0d1375 | 910 | SCM_GLOBAL_SYMBOL(scm_sym_letrec, s_letrec); |
26d5b9b4 MD |
911 | |
912 | SCM | |
6e8d25a6 | 913 | scm_m_letrec (SCM xorig, SCM env) |
26d5b9b4 MD |
914 | { |
915 | SCM x = SCM_CDR (xorig); | |
916 | SCM_ASSYNT (scm_ilength (x) >= 2, xorig, scm_s_body, s_letrec); | |
917 | ||
918 | if (SCM_NULLP (SCM_CAR (x))) /* null binding, let* faster */ | |
3a3111a8 MD |
919 | return scm_m_letstar (scm_cons2 (SCM_CAR (xorig), SCM_EOL, |
920 | scm_m_body (SCM_IM_LETREC, | |
921 | SCM_CDR (x), | |
922 | s_letrec)), | |
26d5b9b4 MD |
923 | env); |
924 | else | |
925 | return scm_m_letrec1 (SCM_IM_LETREC, SCM_IM_LETREC, xorig, env); | |
926 | } | |
1cc91f1b | 927 | |
b8229a3b | 928 | SCM_SYNTAX(s_let, "let", scm_makmmacro, scm_m_let); |
2f0d1375 | 929 | SCM_GLOBAL_SYMBOL(scm_sym_let, s_let); |
b8229a3b | 930 | |
0f2d19dd | 931 | SCM |
6e8d25a6 | 932 | scm_m_let (SCM xorig, SCM env) |
0f2d19dd JB |
933 | { |
934 | SCM cdrx = SCM_CDR (xorig); /* locally mutable version of form */ | |
935 | SCM x = cdrx, proc, arg1, name; /* structure traversers */ | |
936 | SCM vars = SCM_EOL, inits = SCM_EOL, *varloc = &vars, *initloc = &inits; | |
937 | ||
b8229a3b | 938 | SCM_ASSYNT (scm_ilength (x) >= 2, xorig, scm_s_body, s_let); |
0f2d19dd JB |
939 | proc = SCM_CAR (x); |
940 | if (SCM_NULLP (proc) | |
0c95b57d | 941 | || (SCM_CONSP (proc) |
26d5b9b4 MD |
942 | && SCM_CONSP (SCM_CAR (proc)) && SCM_NULLP (SCM_CDR (proc)))) |
943 | { | |
944 | /* null or single binding, let* is faster */ | |
3a3111a8 MD |
945 | return scm_m_letstar (scm_cons2 (SCM_CAR (xorig), proc, |
946 | scm_m_body (SCM_IM_LET, | |
947 | SCM_CDR (x), | |
948 | s_let)), | |
26d5b9b4 MD |
949 | env); |
950 | } | |
951 | ||
b8229a3b | 952 | SCM_ASSYNT (SCM_NIMP (proc), xorig, scm_s_bindings, s_let); |
26d5b9b4 MD |
953 | if (SCM_CONSP (proc)) |
954 | { | |
955 | /* plain let, proc is <bindings> */ | |
956 | return scm_m_letrec1 (SCM_IM_LET, SCM_IM_LET, xorig, env); | |
957 | } | |
958 | ||
0f2d19dd | 959 | if (!SCM_SYMBOLP (proc)) |
b8229a3b | 960 | scm_wta (xorig, scm_s_bindings, s_let); /* bad let */ |
0f2d19dd JB |
961 | name = proc; /* named let, build equiv letrec */ |
962 | x = SCM_CDR (x); | |
b8229a3b | 963 | SCM_ASSYNT (scm_ilength (x) >= 2, xorig, scm_s_body, s_let); |
26d5b9b4 | 964 | proc = SCM_CAR (x); /* bindings list */ |
b8229a3b | 965 | SCM_ASSYNT (scm_ilength (proc) >= 0, xorig, scm_s_bindings, s_let); |
ff467021 | 966 | while (SCM_NIMP (proc)) |
0f2d19dd JB |
967 | { /* vars and inits both in order */ |
968 | arg1 = SCM_CAR (proc); | |
b8229a3b | 969 | SCM_ASSYNT (2 == scm_ilength (arg1), xorig, scm_s_bindings, s_let); |
0c95b57d | 970 | SCM_ASSYNT (SCM_SYMBOLP (SCM_CAR (arg1)), |
b8229a3b | 971 | xorig, scm_s_variable, s_let); |
0f2d19dd | 972 | *varloc = scm_cons (SCM_CAR (arg1), SCM_EOL); |
a23afe53 | 973 | varloc = SCM_CDRLOC (*varloc); |
0f2d19dd | 974 | *initloc = scm_cons (SCM_CAR (SCM_CDR (arg1)), SCM_EOL); |
a23afe53 | 975 | initloc = SCM_CDRLOC (*initloc); |
0f2d19dd JB |
976 | proc = SCM_CDR (proc); |
977 | } | |
26d5b9b4 | 978 | |
2f0d1375 | 979 | proc = scm_cons2 (scm_sym_lambda, vars, |
26d5b9b4 | 980 | scm_m_body (SCM_IM_LET, SCM_CDR (x), "let")); |
2f0d1375 | 981 | proc = scm_cons2 (scm_sym_let, scm_cons (scm_cons2 (name, proc, SCM_EOL), |
26d5b9b4 MD |
982 | SCM_EOL), |
983 | scm_acons (name, inits, SCM_EOL)); | |
984 | return scm_m_letrec1 (SCM_IM_LETREC, SCM_IM_LET, proc, env); | |
0f2d19dd JB |
985 | } |
986 | ||
987 | ||
81123e6d MD |
988 | SCM_SYNTAX (s_atapply,"@apply", scm_makmmacro, scm_m_apply); |
989 | SCM_GLOBAL_SYMBOL (scm_sym_atapply, s_atapply); | |
990 | SCM_GLOBAL_SYMBOL (scm_sym_apply, s_atapply + 1); | |
1cc91f1b | 991 | |
0f2d19dd | 992 | SCM |
6e8d25a6 | 993 | scm_m_apply (SCM xorig, SCM env) |
0f2d19dd | 994 | { |
6cb702da | 995 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) == 2, |
b8229a3b | 996 | xorig, scm_s_expression, s_atapply); |
0f2d19dd JB |
997 | return scm_cons (SCM_IM_APPLY, SCM_CDR (xorig)); |
998 | } | |
999 | ||
b8229a3b MS |
1000 | |
1001 | SCM_SYNTAX(s_atcall_cc,"@call-with-current-continuation", scm_makmmacro, scm_m_cont); | |
2f0d1375 | 1002 | SCM_GLOBAL_SYMBOL(scm_sym_atcall_cc,s_atcall_cc); |
0f2d19dd | 1003 | |
1cc91f1b | 1004 | |
0f2d19dd | 1005 | SCM |
6e8d25a6 | 1006 | scm_m_cont (SCM xorig, SCM env) |
0f2d19dd | 1007 | { |
6cb702da | 1008 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, |
b8229a3b | 1009 | xorig, scm_s_expression, s_atcall_cc); |
3a3111a8 | 1010 | return scm_cons (SCM_IM_CONT, SCM_CDR (xorig)); |
0f2d19dd JB |
1011 | } |
1012 | ||
73b64342 MD |
1013 | /* Multi-language support */ |
1014 | ||
43a912cf MD |
1015 | SCM scm_lisp_nil; |
1016 | SCM scm_lisp_t; | |
73b64342 MD |
1017 | |
1018 | SCM_SYNTAX (s_nil_cond, "nil-cond", scm_makmmacro, scm_m_nil_cond); | |
1019 | ||
1020 | SCM | |
1021 | scm_m_nil_cond (SCM xorig, SCM env) | |
1022 | { | |
1023 | int len = scm_ilength (SCM_CDR (xorig)); | |
1024 | SCM_ASSYNT (len >= 1 && (len & 1) == 1, xorig, | |
1025 | scm_s_expression, "nil-cond"); | |
1026 | return scm_cons (SCM_IM_NIL_COND, SCM_CDR (xorig)); | |
1027 | } | |
1028 | ||
1029 | SCM_SYNTAX (s_nil_ify, "nil-ify", scm_makmmacro, scm_m_nil_ify); | |
1030 | ||
1031 | SCM | |
1032 | scm_m_nil_ify (SCM xorig, SCM env) | |
1033 | { | |
1034 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, | |
1035 | xorig, scm_s_expression, "nil-ify"); | |
1036 | return scm_cons (SCM_IM_NIL_IFY, SCM_CDR (xorig)); | |
1037 | } | |
1038 | ||
1039 | SCM_SYNTAX (s_t_ify, "t-ify", scm_makmmacro, scm_m_t_ify); | |
1040 | ||
1041 | SCM | |
1042 | scm_m_t_ify (SCM xorig, SCM env) | |
1043 | { | |
1044 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, | |
1045 | xorig, scm_s_expression, "t-ify"); | |
1046 | return scm_cons (SCM_IM_T_IFY, SCM_CDR (xorig)); | |
1047 | } | |
1048 | ||
1049 | SCM_SYNTAX (s_0_cond, "0-cond", scm_makmmacro, scm_m_0_cond); | |
1050 | ||
1051 | SCM | |
1052 | scm_m_0_cond (SCM xorig, SCM env) | |
1053 | { | |
1054 | int len = scm_ilength (SCM_CDR (xorig)); | |
1055 | SCM_ASSYNT (len >= 1 && (len & 1) == 1, xorig, | |
1056 | scm_s_expression, "0-cond"); | |
1057 | return scm_cons (SCM_IM_0_COND, SCM_CDR (xorig)); | |
1058 | } | |
1059 | ||
1060 | SCM_SYNTAX (s_0_ify, "0-ify", scm_makmmacro, scm_m_0_ify); | |
1061 | ||
1062 | SCM | |
1063 | scm_m_0_ify (SCM xorig, SCM env) | |
1064 | { | |
1065 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, | |
1066 | xorig, scm_s_expression, "0-ify"); | |
1067 | return scm_cons (SCM_IM_0_IFY, SCM_CDR (xorig)); | |
1068 | } | |
1069 | ||
1070 | SCM_SYNTAX (s_1_ify, "1-ify", scm_makmmacro, scm_m_1_ify); | |
1071 | ||
1072 | SCM | |
1073 | scm_m_1_ify (SCM xorig, SCM env) | |
1074 | { | |
1075 | SCM_ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, | |
1076 | xorig, scm_s_expression, "1-ify"); | |
1077 | return scm_cons (SCM_IM_1_IFY, SCM_CDR (xorig)); | |
1078 | } | |
1079 | ||
1080 | SCM_SYNTAX (s_atfop, "@fop", scm_makmmacro, scm_m_atfop); | |
1081 | ||
1082 | SCM | |
1083 | scm_m_atfop (SCM xorig, SCM env) | |
1084 | { | |
1085 | SCM x = SCM_CDR (xorig), vcell; | |
1086 | SCM_ASSYNT (scm_ilength (x) >= 1, xorig, scm_s_expression, "@fop"); | |
1087 | vcell = scm_symbol_fref (SCM_CAR (x)); | |
0c95b57d | 1088 | SCM_ASSYNT (SCM_CONSP (vcell), x, |
73b64342 | 1089 | "Symbol's function definition is void", NULL); |
3201d763 | 1090 | SCM_SET_CELL_WORD_0 (x, SCM_UNPACK (vcell) + scm_tc3_cons_gloc); |
73b64342 MD |
1091 | return x; |
1092 | } | |
1093 | ||
1094 | SCM_SYNTAX (s_atbind, "@bind", scm_makmmacro, scm_m_atbind); | |
1095 | ||
1096 | SCM | |
1097 | scm_m_atbind (SCM xorig, SCM env) | |
1098 | { | |
1099 | SCM x = SCM_CDR (xorig); | |
1100 | SCM_ASSYNT (scm_ilength (x) > 1, xorig, scm_s_expression, "@bind"); | |
1101 | ||
1102 | if (SCM_IMP (env)) | |
1103 | env = SCM_BOOL_F; | |
1104 | else | |
1105 | { | |
1106 | while (SCM_NIMP (SCM_CDR (env))) | |
1107 | env = SCM_CDR (env); | |
1108 | env = SCM_CAR (env); | |
1109 | if (SCM_CONSP (env)) | |
1110 | env = SCM_BOOL_F; | |
1111 | } | |
1112 | ||
1113 | x = SCM_CAR (x); | |
1114 | while (SCM_NIMP (x)) | |
1115 | { | |
3201d763 | 1116 | SCM_SET_CELL_WORD_0 (x, SCM_UNPACK (scm_sym2vcell (SCM_CAR (x), env, SCM_BOOL_T)) + scm_tc3_cons_gloc); |
73b64342 MD |
1117 | x = SCM_CDR (x); |
1118 | } | |
1119 | return scm_cons (SCM_IM_BIND, SCM_CDR (xorig)); | |
1120 | } | |
73b64342 | 1121 | |
26d5b9b4 MD |
1122 | SCM |
1123 | scm_m_expand_body (SCM xorig, SCM env) | |
1124 | { | |
1125 | SCM form, x = SCM_CDR (xorig), defs = SCM_EOL; | |
1126 | char *what = SCM_ISYMCHARS (SCM_CAR (xorig)) + 2; | |
1127 | ||
1128 | while (SCM_NIMP (x)) | |
1129 | { | |
1130 | form = SCM_CAR (x); | |
1131 | if (SCM_IMP (form) || SCM_NCONSP (form)) | |
1132 | break; | |
1133 | if (SCM_IMP (SCM_CAR (form))) | |
1134 | break; | |
1135 | if (!SCM_SYMBOLP (SCM_CAR (form))) | |
1136 | break; | |
1137 | ||
3a3111a8 MD |
1138 | form = scm_macroexp (scm_cons_source (form, |
1139 | SCM_CAR (form), | |
1140 | SCM_CDR (form)), | |
1141 | env); | |
26d5b9b4 | 1142 | |
cf498326 | 1143 | if (SCM_EQ_P (SCM_IM_DEFINE, SCM_CAR (form))) |
26d5b9b4 MD |
1144 | { |
1145 | defs = scm_cons (SCM_CDR (form), defs); | |
1146 | x = SCM_CDR(x); | |
1147 | } | |
1148 | else if (SCM_NIMP(defs)) | |
1149 | { | |
1150 | break; | |
1151 | } | |
cf498326 | 1152 | else if (SCM_EQ_P (SCM_IM_BEGIN, SCM_CAR (form))) |
26d5b9b4 MD |
1153 | { |
1154 | x = scm_append (scm_cons2 (SCM_CDR (form), SCM_CDR (x), SCM_EOL)); | |
1155 | } | |
1156 | else | |
1157 | { | |
1158 | x = scm_cons (form, SCM_CDR(x)); | |
1159 | break; | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | SCM_ASSYNT (SCM_NIMP (x), SCM_CDR (xorig), scm_s_body, what); | |
1164 | if (SCM_NIMP (defs)) | |
1165 | { | |
1166 | x = scm_cons (scm_m_letrec1 (SCM_IM_LETREC, | |
1167 | SCM_IM_DEFINE, | |
2f0d1375 | 1168 | scm_cons2 (scm_sym_define, defs, x), |
26d5b9b4 MD |
1169 | env), |
1170 | SCM_EOL); | |
1171 | } | |
1172 | ||
1173 | SCM_DEFER_INTS; | |
1174 | SCM_SETCAR (xorig, SCM_CAR (x)); | |
1175 | SCM_SETCDR (xorig, SCM_CDR (x)); | |
1176 | SCM_ALLOW_INTS; | |
1177 | ||
1178 | return xorig; | |
1179 | } | |
1180 | ||
1181 | SCM | |
1182 | scm_macroexp (SCM x, SCM env) | |
1183 | { | |
1184 | SCM res, proc; | |
1185 | ||
1186 | /* Don't bother to produce error messages here. We get them when we | |
1187 | eventually execute the code for real. */ | |
1188 | ||
1189 | macro_tail: | |
44d3cb0d | 1190 | if (!SCM_SYMBOLP (SCM_CAR (x))) |
26d5b9b4 MD |
1191 | return x; |
1192 | ||
1193 | #ifdef USE_THREADS | |
1194 | { | |
1195 | SCM *proc_ptr = scm_lookupcar1 (x, env, 0); | |
1196 | if (proc_ptr == NULL) | |
1197 | { | |
1198 | /* We have lost the race. */ | |
1199 | goto macro_tail; | |
1200 | } | |
1201 | proc = *proc_ptr; | |
1202 | } | |
1203 | #else | |
1204 | proc = *scm_lookupcar (x, env, 0); | |
1205 | #endif | |
1206 | ||
1207 | /* Only handle memoizing macros. `Acros' and `macros' are really | |
1208 | special forms and should not be evaluated here. */ | |
1209 | ||
1210 | if (SCM_IMP (proc) | |
1211 | || scm_tc16_macro != SCM_TYP16 (proc) | |
445f675c | 1212 | || (SCM_CELL_WORD_0 (proc) >> 16) != 2) |
26d5b9b4 MD |
1213 | return x; |
1214 | ||
1215 | unmemocar (x, env); | |
1216 | res = scm_apply (SCM_CDR (proc), x, scm_cons (env, scm_listofnull)); | |
1217 | ||
1218 | if (scm_ilength (res) <= 0) | |
1219 | res = scm_cons2 (SCM_IM_BEGIN, res, SCM_EOL); | |
1220 | ||
26d5b9b4 MD |
1221 | SCM_DEFER_INTS; |
1222 | SCM_SETCAR (x, SCM_CAR (res)); | |
1223 | SCM_SETCDR (x, SCM_CDR (res)); | |
1224 | SCM_ALLOW_INTS; | |
1225 | ||
1226 | goto macro_tail; | |
1227 | } | |
73b64342 | 1228 | |
6dbd0af5 MD |
1229 | /* scm_unmemocopy takes a memoized expression together with its |
1230 | * environment and rewrites it to its original form. Thus, it is the | |
1231 | * inversion of the rewrite rules above. The procedure is not | |
1232 | * optimized for speed. It's used in scm_iprin1 when printing the | |
220ff1eb MD |
1233 | * code of a closure, in scm_procedure_source, in display_frame when |
1234 | * generating the source for a stackframe in a backtrace, and in | |
1235 | * display_expression. | |
6dbd0af5 MD |
1236 | */ |
1237 | ||
26d5b9b4 MD |
1238 | /* We should introduce an anti-macro interface so that it is possible |
1239 | * to plug in transformers in both directions from other compilation | |
1240 | * units. unmemocopy could then dispatch to anti-macro transformers. | |
1241 | * (Those transformers could perhaps be written in slightly more | |
1242 | * readable style... :) | |
1243 | */ | |
1244 | ||
f1267706 | 1245 | #define SCM_BIT8(x) (127 & SCM_UNPACK (x)) |
c209c88e | 1246 | |
6dbd0af5 | 1247 | static SCM |
1bbd0b84 | 1248 | unmemocopy (SCM x, SCM env) |
6dbd0af5 MD |
1249 | { |
1250 | SCM ls, z; | |
1251 | #ifdef DEBUG_EXTENSIONS | |
1252 | SCM p; | |
1253 | #endif | |
1254 | if (SCM_NCELLP (x) || SCM_NECONSP (x)) | |
1255 | return x; | |
1256 | #ifdef DEBUG_EXTENSIONS | |
1257 | p = scm_whash_lookup (scm_source_whash, x); | |
1258 | #endif | |
1259 | switch (SCM_TYP7 (x)) | |
1260 | { | |
c209c88e | 1261 | case SCM_BIT8(SCM_IM_AND): |
2f0d1375 | 1262 | ls = z = scm_cons (scm_sym_and, SCM_UNSPECIFIED); |
6dbd0af5 | 1263 | break; |
c209c88e | 1264 | case SCM_BIT8(SCM_IM_BEGIN): |
2f0d1375 | 1265 | ls = z = scm_cons (scm_sym_begin, SCM_UNSPECIFIED); |
6dbd0af5 | 1266 | break; |
c209c88e | 1267 | case SCM_BIT8(SCM_IM_CASE): |
2f0d1375 | 1268 | ls = z = scm_cons (scm_sym_case, SCM_UNSPECIFIED); |
6dbd0af5 | 1269 | break; |
c209c88e | 1270 | case SCM_BIT8(SCM_IM_COND): |
2f0d1375 | 1271 | ls = z = scm_cons (scm_sym_cond, SCM_UNSPECIFIED); |
6dbd0af5 | 1272 | break; |
c209c88e | 1273 | case SCM_BIT8(SCM_IM_DO): |
2f0d1375 | 1274 | ls = scm_cons (scm_sym_do, SCM_UNSPECIFIED); |
6dbd0af5 | 1275 | goto transform; |
c209c88e | 1276 | case SCM_BIT8(SCM_IM_IF): |
2f0d1375 | 1277 | ls = z = scm_cons (scm_sym_if, SCM_UNSPECIFIED); |
6dbd0af5 | 1278 | break; |
c209c88e | 1279 | case SCM_BIT8(SCM_IM_LET): |
2f0d1375 | 1280 | ls = scm_cons (scm_sym_let, SCM_UNSPECIFIED); |
6dbd0af5 | 1281 | goto transform; |
c209c88e | 1282 | case SCM_BIT8(SCM_IM_LETREC): |
6dbd0af5 MD |
1283 | { |
1284 | SCM f, v, e, s; | |
2f0d1375 | 1285 | ls = scm_cons (scm_sym_letrec, SCM_UNSPECIFIED); |
6dbd0af5 MD |
1286 | transform: |
1287 | x = SCM_CDR (x); | |
26d5b9b4 | 1288 | /* binding names */ |
6dbd0af5 MD |
1289 | f = v = SCM_CAR (x); |
1290 | x = SCM_CDR (x); | |
e2806c10 | 1291 | z = EXTEND_ENV (f, SCM_EOL, env); |
26d5b9b4 | 1292 | /* inits */ |
6dbd0af5 | 1293 | e = scm_reverse (unmemocopy (SCM_CAR (x), |
cf498326 | 1294 | SCM_EQ_P (SCM_CAR (ls), scm_sym_letrec) ? z : env)); |
6dbd0af5 | 1295 | env = z; |
26d5b9b4 | 1296 | /* increments */ |
cf498326 | 1297 | s = SCM_EQ_P (SCM_CAR (ls), scm_sym_do) |
6dbd0af5 MD |
1298 | ? scm_reverse (unmemocopy (SCM_CDR (SCM_CDR (SCM_CDR (x))), env)) |
1299 | : f; | |
26d5b9b4 | 1300 | /* build transformed binding list */ |
6dbd0af5 | 1301 | z = SCM_EOL; |
1bd07992 | 1302 | while (SCM_NIMP (v)) |
6dbd0af5 MD |
1303 | { |
1304 | z = scm_acons (SCM_CAR (v), | |
1305 | scm_cons (SCM_CAR (e), | |
cf498326 | 1306 | SCM_EQ_P (SCM_CAR (s), SCM_CAR (v)) |
6dbd0af5 MD |
1307 | ? SCM_EOL |
1308 | : scm_cons (SCM_CAR (s), SCM_EOL)), | |
1309 | z); | |
1310 | v = SCM_CDR (v); | |
1311 | e = SCM_CDR (e); | |
1312 | s = SCM_CDR (s); | |
1313 | } | |
a23afe53 MD |
1314 | z = scm_cons (z, SCM_UNSPECIFIED); |
1315 | SCM_SETCDR (ls, z); | |
cf498326 | 1316 | if (SCM_EQ_P (SCM_CAR (ls), scm_sym_do)) |
6dbd0af5 MD |
1317 | { |
1318 | x = SCM_CDR (x); | |
26d5b9b4 | 1319 | /* test clause */ |
a23afe53 | 1320 | SCM_SETCDR (z, scm_cons (unmemocopy (SCM_CAR (x), env), |
6dbd0af5 | 1321 | SCM_UNSPECIFIED)); |
a23afe53 MD |
1322 | z = SCM_CDR (z); |
1323 | x = (SCM) (SCM_CARLOC (SCM_CDR (x)) - 1); | |
26d5b9b4 MD |
1324 | /* body forms are now to be found in SCM_CDR (x) |
1325 | (this is how *real* code look like! :) */ | |
6dbd0af5 MD |
1326 | } |
1327 | break; | |
1328 | } | |
c209c88e | 1329 | case SCM_BIT8(SCM_IM_LETSTAR): |
6dbd0af5 MD |
1330 | { |
1331 | SCM b, y; | |
1332 | x = SCM_CDR (x); | |
1333 | b = SCM_CAR (x); | |
1334 | y = SCM_EOL; | |
1335 | if SCM_IMP (b) | |
1336 | { | |
e2806c10 | 1337 | env = EXTEND_ENV (SCM_EOL, SCM_EOL, env); |
6dbd0af5 MD |
1338 | goto letstar; |
1339 | } | |
1340 | y = z = scm_acons (SCM_CAR (b), | |
1341 | unmemocar ( | |
1342 | scm_cons (unmemocopy (SCM_CAR (SCM_CDR (b)), env), SCM_EOL), env), | |
1343 | SCM_UNSPECIFIED); | |
e2806c10 | 1344 | env = EXTEND_ENV (SCM_CAR (b), SCM_BOOL_F, env); |
6dbd0af5 MD |
1345 | b = SCM_CDR (SCM_CDR (b)); |
1346 | if (SCM_IMP (b)) | |
1347 | { | |
1348 | SCM_SETCDR (y, SCM_EOL); | |
2f0d1375 | 1349 | ls = scm_cons (scm_sym_let, z = scm_cons (y, SCM_UNSPECIFIED)); |
6dbd0af5 MD |
1350 | break; |
1351 | } | |
1352 | do | |
1353 | { | |
a23afe53 MD |
1354 | SCM_SETCDR (z, scm_acons (SCM_CAR (b), |
1355 | unmemocar ( | |
6dbd0af5 | 1356 | scm_cons (unmemocopy (SCM_CAR (SCM_CDR (b)), env), SCM_EOL), env), |
a23afe53 MD |
1357 | SCM_UNSPECIFIED)); |
1358 | z = SCM_CDR (z); | |
e2806c10 | 1359 | env = EXTEND_ENV (SCM_CAR (b), SCM_BOOL_F, env); |
6dbd0af5 MD |
1360 | b = SCM_CDR (SCM_CDR (b)); |
1361 | } | |
ff467021 | 1362 | while (SCM_NIMP (b)); |
a23afe53 | 1363 | SCM_SETCDR (z, SCM_EOL); |
6dbd0af5 | 1364 | letstar: |
2f0d1375 | 1365 | ls = scm_cons (scm_sym_letstar, z = scm_cons (y, SCM_UNSPECIFIED)); |
6dbd0af5 MD |
1366 | break; |
1367 | } | |
c209c88e | 1368 | case SCM_BIT8(SCM_IM_OR): |
2f0d1375 | 1369 | ls = z = scm_cons (scm_sym_or, SCM_UNSPECIFIED); |
6dbd0af5 | 1370 | break; |
c209c88e | 1371 | case SCM_BIT8(SCM_IM_LAMBDA): |
6dbd0af5 | 1372 | x = SCM_CDR (x); |
2f0d1375 | 1373 | ls = scm_cons (scm_sym_lambda, |
6dbd0af5 | 1374 | z = scm_cons (SCM_CAR (x), SCM_UNSPECIFIED)); |
e2806c10 | 1375 | env = EXTEND_ENV (SCM_CAR (x), SCM_EOL, env); |
6dbd0af5 | 1376 | break; |
c209c88e | 1377 | case SCM_BIT8(SCM_IM_QUOTE): |
2f0d1375 | 1378 | ls = z = scm_cons (scm_sym_quote, SCM_UNSPECIFIED); |
6dbd0af5 | 1379 | break; |
c209c88e | 1380 | case SCM_BIT8(SCM_IM_SET_X): |
89efbff4 | 1381 | ls = z = scm_cons (scm_sym_set_x, SCM_UNSPECIFIED); |
6dbd0af5 | 1382 | break; |
c209c88e | 1383 | case SCM_BIT8(SCM_IM_DEFINE): |
6dbd0af5 MD |
1384 | { |
1385 | SCM n; | |
1386 | x = SCM_CDR (x); | |
2f0d1375 | 1387 | ls = scm_cons (scm_sym_define, |
6dbd0af5 MD |
1388 | z = scm_cons (n = SCM_CAR (x), SCM_UNSPECIFIED)); |
1389 | if (SCM_NNULLP (env)) | |
a23afe53 | 1390 | SCM_SETCAR (SCM_CAR (env), scm_cons (n, SCM_CAR (SCM_CAR (env)))); |
6dbd0af5 MD |
1391 | break; |
1392 | } | |
c209c88e | 1393 | case SCM_BIT8(SCM_MAKISYM (0)): |
6dbd0af5 MD |
1394 | z = SCM_CAR (x); |
1395 | if (!SCM_ISYMP (z)) | |
1396 | goto unmemo; | |
ff467021 | 1397 | switch (SCM_ISYMNUM (z)) |
6dbd0af5 MD |
1398 | { |
1399 | case (SCM_ISYMNUM (SCM_IM_APPLY)): | |
2f0d1375 | 1400 | ls = z = scm_cons (scm_sym_atapply, SCM_UNSPECIFIED); |
6dbd0af5 MD |
1401 | goto loop; |
1402 | case (SCM_ISYMNUM (SCM_IM_CONT)): | |
2f0d1375 | 1403 | ls = z = scm_cons (scm_sym_atcall_cc, SCM_UNSPECIFIED); |
6dbd0af5 | 1404 | goto loop; |
a570e93a MD |
1405 | case (SCM_ISYMNUM (SCM_IM_DELAY)): |
1406 | ls = z = scm_cons (scm_sym_delay, SCM_UNSPECIFIED); | |
1407 | x = SCM_CDR (x); | |
1408 | goto loop; | |
6dbd0af5 | 1409 | default: |
fa888178 | 1410 | /* appease the Sun compiler god: */ ; |
6dbd0af5 MD |
1411 | } |
1412 | unmemo: | |
1413 | default: | |
1414 | ls = z = unmemocar (scm_cons (unmemocopy (SCM_CAR (x), env), | |
1415 | SCM_UNSPECIFIED), | |
1416 | env); | |
1417 | } | |
1418 | loop: | |
1419 | while (SCM_CELLP (x = SCM_CDR (x)) && SCM_ECONSP (x)) | |
a23afe53 | 1420 | { |
44d3cb0d | 1421 | if (SCM_ISYMP (SCM_CAR (x))) |
26d5b9b4 MD |
1422 | /* skip body markers */ |
1423 | continue; | |
a23afe53 MD |
1424 | SCM_SETCDR (z, unmemocar (scm_cons (unmemocopy (SCM_CAR (x), env), |
1425 | SCM_UNSPECIFIED), | |
1426 | env)); | |
1427 | z = SCM_CDR (z); | |
1428 | } | |
1429 | SCM_SETCDR (z, x); | |
6dbd0af5 MD |
1430 | #ifdef DEBUG_EXTENSIONS |
1431 | if (SCM_NFALSEP (p)) | |
1432 | scm_whash_insert (scm_source_whash, ls, p); | |
1433 | #endif | |
1434 | return ls; | |
1435 | } | |
1436 | ||
1cc91f1b | 1437 | |
6dbd0af5 | 1438 | SCM |
6e8d25a6 | 1439 | scm_unmemocopy (SCM x, SCM env) |
6dbd0af5 MD |
1440 | { |
1441 | if (SCM_NNULLP (env)) | |
1442 | /* Make a copy of the lowest frame to protect it from | |
1443 | modifications by SCM_IM_DEFINE */ | |
1444 | return unmemocopy (x, scm_cons (SCM_CAR (env), SCM_CDR (env))); | |
1445 | else | |
1446 | return unmemocopy (x, env); | |
1447 | } | |
1448 | ||
cf7c17e9 | 1449 | #ifndef SCM_RECKLESS |
1cc91f1b | 1450 | |
0f2d19dd | 1451 | int |
6e8d25a6 | 1452 | scm_badargsp (SCM formals, SCM args) |
0f2d19dd | 1453 | { |
ff467021 | 1454 | while (SCM_NIMP (formals)) |
0f2d19dd | 1455 | { |
ff467021 JB |
1456 | if (SCM_NCONSP (formals)) |
1457 | return 0; | |
1458 | if (SCM_IMP(args)) | |
1459 | return 1; | |
0f2d19dd JB |
1460 | formals = SCM_CDR (formals); |
1461 | args = SCM_CDR (args); | |
1462 | } | |
1463 | return SCM_NNULLP (args) ? 1 : 0; | |
1464 | } | |
1465 | #endif | |
1466 | ||
002f1a5d MD |
1467 | static int |
1468 | scm_badformalsp (SCM closure, int n) | |
1469 | { | |
1470 | SCM formals = SCM_CAR (SCM_CODE (closure)); | |
1471 | while (SCM_NIMP (formals)) | |
1472 | { | |
1473 | if (SCM_NCONSP (formals)) | |
1474 | return 0; | |
1475 | if (n == 0) | |
1476 | return 1; | |
1477 | --n; | |
1478 | formals = SCM_CDR (formals); | |
1479 | } | |
1480 | return n; | |
1481 | } | |
0f2d19dd JB |
1482 | |
1483 | \f | |
6dbd0af5 | 1484 | SCM |
6e8d25a6 | 1485 | scm_eval_args (SCM l, SCM env, SCM proc) |
6dbd0af5 | 1486 | { |
680ed4a8 | 1487 | SCM results = SCM_EOL, *lloc = &results, res; |
6dbd0af5 MD |
1488 | while (SCM_NIMP (l)) |
1489 | { | |
cf7c17e9 | 1490 | #ifdef SCM_CAUTIOUS |
44d3cb0d | 1491 | if (SCM_CONSP (l)) |
680ed4a8 MD |
1492 | { |
1493 | if (SCM_IMP (SCM_CAR (l))) | |
6cb702da | 1494 | res = SCM_EVALIM (SCM_CAR (l), env); |
680ed4a8 MD |
1495 | else |
1496 | res = EVALCELLCAR (l, env); | |
1497 | } | |
3201d763 | 1498 | else if (SCM_TYP3 (l) == scm_tc3_cons_gloc) |
680ed4a8 | 1499 | { |
3201d763 DH |
1500 | scm_bits_t vcell = SCM_STRUCT_VTABLE_DATA (l) [scm_vtable_index_vcell]; |
1501 | if (vcell == 0) | |
680ed4a8 | 1502 | res = SCM_CAR (l); /* struct planted in code */ |
3201d763 DH |
1503 | else |
1504 | res = SCM_PACK (vcell); | |
680ed4a8 MD |
1505 | } |
1506 | else | |
1507 | goto wrongnumargs; | |
1508 | #else | |
1509 | res = EVALCAR (l, env); | |
1510 | #endif | |
1511 | *lloc = scm_cons (res, SCM_EOL); | |
a23afe53 | 1512 | lloc = SCM_CDRLOC (*lloc); |
6dbd0af5 MD |
1513 | l = SCM_CDR (l); |
1514 | } | |
cf7c17e9 | 1515 | #ifdef SCM_CAUTIOUS |
680ed4a8 MD |
1516 | if (SCM_NNULLP (l)) |
1517 | { | |
1518 | wrongnumargs: | |
1519 | scm_wrong_num_args (proc); | |
1520 | } | |
1521 | #endif | |
1522 | return results; | |
6dbd0af5 | 1523 | } |
c4ac4d88 | 1524 | |
9de33deb MD |
1525 | SCM |
1526 | scm_eval_body (SCM code, SCM env) | |
1527 | { | |
1528 | SCM next; | |
1529 | again: | |
1530 | next = code; | |
1531 | while (SCM_NNULLP (next = SCM_CDR (next))) | |
1532 | { | |
1533 | if (SCM_IMP (SCM_CAR (code))) | |
1534 | { | |
1535 | if (SCM_ISYMP (SCM_CAR (code))) | |
1536 | { | |
1537 | code = scm_m_expand_body (code, env); | |
1538 | goto again; | |
1539 | } | |
1540 | } | |
1541 | else | |
1542 | SCM_XEVAL (SCM_CAR (code), env); | |
1543 | code = next; | |
1544 | } | |
1545 | return SCM_XEVALCAR (code, env); | |
1546 | } | |
1547 | ||
c4ac4d88 | 1548 | |
0f2d19dd JB |
1549 | #endif /* !DEVAL */ |
1550 | ||
6dbd0af5 MD |
1551 | |
1552 | /* SECTION: This code is specific for the debugging support. One | |
1553 | * branch is read when DEVAL isn't defined, the other when DEVAL is | |
1554 | * defined. | |
1555 | */ | |
1556 | ||
1557 | #ifndef DEVAL | |
1558 | ||
1559 | #define SCM_APPLY scm_apply | |
1560 | #define PREP_APPLY(proc, args) | |
1561 | #define ENTER_APPLY | |
1562 | #define RETURN(x) return x; | |
b7ff98dd MD |
1563 | #ifdef STACK_CHECKING |
1564 | #ifndef NO_CEVAL_STACK_CHECKING | |
1565 | #define EVAL_STACK_CHECKING | |
1566 | #endif | |
6dbd0af5 MD |
1567 | #endif |
1568 | ||
1569 | #else /* !DEVAL */ | |
1570 | ||
0f2d19dd JB |
1571 | #undef SCM_CEVAL |
1572 | #define SCM_CEVAL scm_deval /* Substitute all uses of scm_ceval */ | |
1573 | #undef SCM_APPLY | |
1574 | #define SCM_APPLY scm_dapply | |
6dbd0af5 MD |
1575 | #undef PREP_APPLY |
1576 | #define PREP_APPLY(p, l) \ | |
1577 | { ++debug.info; debug.info->a.proc = p; debug.info->a.args = l; } | |
1578 | #undef ENTER_APPLY | |
1579 | #define ENTER_APPLY \ | |
d3a6bc94 | 1580 | do { \ |
b7ff98dd | 1581 | SCM_SET_ARGSREADY (debug);\ |
b6d75948 | 1582 | if (CHECK_APPLY && SCM_TRAPS_P)\ |
b7ff98dd | 1583 | if (SCM_APPLY_FRAME_P || (SCM_TRACE_P && PROCTRACEP (proc)))\ |
6dbd0af5 | 1584 | {\ |
156dcb09 | 1585 | SCM tmp, tail = SCM_BOOL(SCM_TRACED_FRAME_P (debug)); \ |
c6a4fbce | 1586 | SCM_SET_TRACED_FRAME (debug); \ |
b7ff98dd | 1587 | if (SCM_CHEAPTRAPS_P)\ |
6dbd0af5 | 1588 | {\ |
c0ab1b8d | 1589 | tmp = scm_make_debugobj (&debug);\ |
2f0d1375 | 1590 | scm_ithrow (scm_sym_apply_frame, scm_cons2 (tmp, tail, SCM_EOL), 0);\ |
b6d75948 | 1591 | }\ |
6dbd0af5 MD |
1592 | else\ |
1593 | {\ | |
5f144b10 GH |
1594 | int first;\ |
1595 | tmp = scm_make_continuation (&first);\ | |
1596 | if (first)\ | |
2f0d1375 | 1597 | scm_ithrow (scm_sym_apply_frame, scm_cons2 (tmp, tail, SCM_EOL), 0);\ |
6dbd0af5 MD |
1598 | }\ |
1599 | }\ | |
d3a6bc94 | 1600 | } while (0) |
0f2d19dd JB |
1601 | #undef RETURN |
1602 | #define RETURN(e) {proc = (e); goto exit;} | |
b7ff98dd MD |
1603 | #ifdef STACK_CHECKING |
1604 | #ifndef EVAL_STACK_CHECKING | |
1605 | #define EVAL_STACK_CHECKING | |
1606 | #endif | |
6dbd0af5 MD |
1607 | #endif |
1608 | ||
1609 | /* scm_ceval_ptr points to the currently selected evaluator. | |
1610 | * *fixme*: Although efficiency is important here, this state variable | |
1611 | * should probably not be a global. It should be related to the | |
1612 | * current repl. | |
1613 | */ | |
1614 | ||
1cc91f1b | 1615 | |
1bbd0b84 | 1616 | SCM (*scm_ceval_ptr) (SCM x, SCM env); |
0f2d19dd | 1617 | |
1646d37b | 1618 | /* scm_last_debug_frame contains a pointer to the last debugging |
6dbd0af5 MD |
1619 | * information stack frame. It is accessed very often from the |
1620 | * debugging evaluator, so it should probably not be indirectly | |
1621 | * addressed. Better to save and restore it from the current root at | |
1622 | * any stack swaps. | |
1623 | */ | |
1624 | ||
1646d37b MD |
1625 | #ifndef USE_THREADS |
1626 | scm_debug_frame *scm_last_debug_frame; | |
1627 | #endif | |
6dbd0af5 MD |
1628 | |
1629 | /* scm_debug_eframe_size is the number of slots available for pseudo | |
1630 | * stack frames at each real stack frame. | |
1631 | */ | |
1632 | ||
1633 | int scm_debug_eframe_size; | |
1634 | ||
b7ff98dd | 1635 | int scm_debug_mode, scm_check_entry_p, scm_check_apply_p, scm_check_exit_p; |
6dbd0af5 | 1636 | |
a74145b8 MD |
1637 | int scm_eval_stack; |
1638 | ||
33b97402 | 1639 | scm_option scm_eval_opts[] = { |
a74145b8 | 1640 | { SCM_OPTION_INTEGER, "stack", 22000, "Size of thread stacks (in machine words)." } |
33b97402 MD |
1641 | }; |
1642 | ||
6dbd0af5 | 1643 | scm_option scm_debug_opts[] = { |
b7ff98dd MD |
1644 | { SCM_OPTION_BOOLEAN, "cheap", 1, |
1645 | "*Flyweight representation of the stack at traps." }, | |
1646 | { SCM_OPTION_BOOLEAN, "breakpoints", 0, "*Check for breakpoints." }, | |
1647 | { SCM_OPTION_BOOLEAN, "trace", 0, "*Trace mode." }, | |
1648 | { SCM_OPTION_BOOLEAN, "procnames", 1, | |
1649 | "Record procedure names at definition." }, | |
1650 | { SCM_OPTION_BOOLEAN, "backwards", 0, | |
1651 | "Display backtrace in anti-chronological order." }, | |
274dc5fd | 1652 | { SCM_OPTION_INTEGER, "width", 79, "Maximal width of backtrace." }, |
4e646a03 MD |
1653 | { SCM_OPTION_INTEGER, "indent", 10, "Maximal indentation in backtrace." }, |
1654 | { SCM_OPTION_INTEGER, "frames", 3, | |
b7ff98dd | 1655 | "Maximum number of tail-recursive frames in backtrace." }, |
4e646a03 MD |
1656 | { SCM_OPTION_INTEGER, "maxdepth", 1000, |
1657 | "Maximal number of stored backtrace frames." }, | |
1658 | { SCM_OPTION_INTEGER, "depth", 20, "Maximal length of printed backtrace." }, | |
11f77bfc MD |
1659 | { SCM_OPTION_BOOLEAN, "backtrace", 0, "Show backtrace on error." }, |
1660 | { SCM_OPTION_BOOLEAN, "debug", 0, "Use the debugging evaluator." }, | |
a74145b8 | 1661 | { SCM_OPTION_INTEGER, "stack", 20000, "Stack size limit (measured in words; 0 = no check)." } |
6dbd0af5 MD |
1662 | }; |
1663 | ||
1664 | scm_option scm_evaluator_trap_table[] = { | |
b6d75948 | 1665 | { SCM_OPTION_BOOLEAN, "traps", 0, "Enable evaluator traps." }, |
b7ff98dd MD |
1666 | { SCM_OPTION_BOOLEAN, "enter-frame", 0, "Trap when eval enters new frame." }, |
1667 | { SCM_OPTION_BOOLEAN, "apply-frame", 0, "Trap when entering apply." }, | |
1668 | { SCM_OPTION_BOOLEAN, "exit-frame", 0, "Trap when exiting eval or apply." } | |
6dbd0af5 MD |
1669 | }; |
1670 | ||
a1ec6916 | 1671 | SCM_DEFINE (scm_eval_options_interface, "eval-options-interface", 0, 1, 0, |
1bbd0b84 | 1672 | (SCM setting), |
b380b885 | 1673 | "") |
1bbd0b84 | 1674 | #define FUNC_NAME s_scm_eval_options_interface |
33b97402 MD |
1675 | { |
1676 | SCM ans; | |
1677 | SCM_DEFER_INTS; | |
1678 | ans = scm_options (setting, | |
1679 | scm_eval_opts, | |
1680 | SCM_N_EVAL_OPTIONS, | |
1bbd0b84 | 1681 | FUNC_NAME); |
a74145b8 | 1682 | scm_eval_stack = SCM_EVAL_STACK * sizeof (void *); |
33b97402 MD |
1683 | SCM_ALLOW_INTS; |
1684 | return ans; | |
1685 | } | |
1bbd0b84 | 1686 | #undef FUNC_NAME |
33b97402 | 1687 | |
a1ec6916 | 1688 | SCM_DEFINE (scm_evaluator_traps, "evaluator-traps-interface", 0, 1, 0, |
1bbd0b84 | 1689 | (SCM setting), |
b380b885 | 1690 | "") |
1bbd0b84 | 1691 | #define FUNC_NAME s_scm_evaluator_traps |
33b97402 MD |
1692 | { |
1693 | SCM ans; | |
1694 | SCM_DEFER_INTS; | |
1695 | ans = scm_options (setting, | |
1696 | scm_evaluator_trap_table, | |
1697 | SCM_N_EVALUATOR_TRAPS, | |
1bbd0b84 | 1698 | FUNC_NAME); |
33b97402 | 1699 | SCM_RESET_DEBUG_MODE; |
bfc69694 | 1700 | SCM_ALLOW_INTS; |
33b97402 MD |
1701 | return ans; |
1702 | } | |
1bbd0b84 | 1703 | #undef FUNC_NAME |
33b97402 | 1704 | |
6dbd0af5 | 1705 | SCM |
6e8d25a6 | 1706 | scm_deval_args (SCM l, SCM env, SCM proc, SCM *lloc) |
0f2d19dd | 1707 | { |
680ed4a8 | 1708 | SCM *results = lloc, res; |
0f2d19dd JB |
1709 | while (SCM_NIMP (l)) |
1710 | { | |
cf7c17e9 | 1711 | #ifdef SCM_CAUTIOUS |
44d3cb0d | 1712 | if (SCM_CONSP (l)) |
680ed4a8 MD |
1713 | { |
1714 | if (SCM_IMP (SCM_CAR (l))) | |
6cb702da | 1715 | res = SCM_EVALIM (SCM_CAR (l), env); |
680ed4a8 MD |
1716 | else |
1717 | res = EVALCELLCAR (l, env); | |
1718 | } | |
3201d763 | 1719 | else if (SCM_TYP3 (l) == scm_tc3_cons_gloc) |
680ed4a8 | 1720 | { |
3201d763 DH |
1721 | scm_bits_t vcell = SCM_STRUCT_VTABLE_DATA (l) [scm_vtable_index_vcell]; |
1722 | if (vcell == 0) | |
680ed4a8 | 1723 | res = SCM_CAR (l); /* struct planted in code */ |
3201d763 DH |
1724 | else |
1725 | res = SCM_PACK (vcell); | |
680ed4a8 MD |
1726 | } |
1727 | else | |
1728 | goto wrongnumargs; | |
1729 | #else | |
1730 | res = EVALCAR (l, env); | |
1731 | #endif | |
1732 | *lloc = scm_cons (res, SCM_EOL); | |
a23afe53 | 1733 | lloc = SCM_CDRLOC (*lloc); |
0f2d19dd JB |
1734 | l = SCM_CDR (l); |
1735 | } | |
cf7c17e9 | 1736 | #ifdef SCM_CAUTIOUS |
680ed4a8 MD |
1737 | if (SCM_NNULLP (l)) |
1738 | { | |
1739 | wrongnumargs: | |
1740 | scm_wrong_num_args (proc); | |
1741 | } | |
1742 | #endif | |
1743 | return *results; | |
0f2d19dd JB |
1744 | } |
1745 | ||
6dbd0af5 MD |
1746 | #endif /* !DEVAL */ |
1747 | ||
1748 | ||
1749 | /* SECTION: Some local definitions for the evaluator. | |
1750 | */ | |
1751 | ||
1752 | #ifndef DEVAL | |
3201d763 | 1753 | #define CHECK_EQVISH(A,B) (SCM_EQ_P ((A), (B)) || (SCM_NFALSEP (scm_eqv_p ((A), (B))))) |
6dbd0af5 MD |
1754 | #endif /* DEVAL */ |
1755 | ||
399dedcc | 1756 | #define BUILTIN_RPASUBR /* Handle rpsubrs and asubrs without calling apply */ |
6dbd0af5 MD |
1757 | |
1758 | /* SECTION: This is the evaluator. Like any real monster, it has | |
1759 | * three heads. This code is compiled twice. | |
1760 | */ | |
1761 | ||
0f2d19dd | 1762 | #if 0 |
1cc91f1b | 1763 | |
0f2d19dd | 1764 | SCM |
1bbd0b84 | 1765 | scm_ceval (SCM x, SCM env) |
0f2d19dd JB |
1766 | {} |
1767 | #endif | |
1768 | #if 0 | |
1cc91f1b | 1769 | |
0f2d19dd | 1770 | SCM |
1bbd0b84 | 1771 | scm_deval (SCM x, SCM env) |
0f2d19dd JB |
1772 | {} |
1773 | #endif | |
1774 | ||
6dbd0af5 | 1775 | SCM |
1bbd0b84 | 1776 | SCM_CEVAL (SCM x, SCM env) |
0f2d19dd JB |
1777 | { |
1778 | union | |
1779 | { | |
1780 | SCM *lloc; | |
1781 | SCM arg1; | |
f8769b1d | 1782 | } t; |
6dbd0af5 MD |
1783 | SCM proc, arg2; |
1784 | #ifdef DEVAL | |
c0ab1b8d JB |
1785 | scm_debug_frame debug; |
1786 | scm_debug_info *debug_info_end; | |
1646d37b | 1787 | debug.prev = scm_last_debug_frame; |
6dbd0af5 | 1788 | debug.status = scm_debug_eframe_size; |
04b6c081 MD |
1789 | /* |
1790 | * The debug.vect contains twice as much scm_debug_info frames as the | |
1791 | * user has specified with (debug-set! frames <n>). | |
1792 | * | |
1793 | * Even frames are eval frames, odd frames are apply frames. | |
1794 | */ | |
c0ab1b8d JB |
1795 | debug.vect = (scm_debug_info *) alloca (scm_debug_eframe_size |
1796 | * sizeof (debug.vect[0])); | |
1797 | debug.info = debug.vect; | |
1798 | debug_info_end = debug.vect + scm_debug_eframe_size; | |
1799 | scm_last_debug_frame = &debug; | |
6dbd0af5 | 1800 | #endif |
b7ff98dd | 1801 | #ifdef EVAL_STACK_CHECKING |
6f13f9cb MD |
1802 | if (scm_stack_checking_enabled_p |
1803 | && SCM_STACK_OVERFLOW_P ((SCM_STACKITEM *) &proc)) | |
6dbd0af5 | 1804 | { |
b7ff98dd | 1805 | #ifdef DEVAL |
6dbd0af5 MD |
1806 | debug.info->e.exp = x; |
1807 | debug.info->e.env = env; | |
b7ff98dd | 1808 | #endif |
6dbd0af5 MD |
1809 | scm_report_stack_overflow (); |
1810 | } | |
1811 | #endif | |
1812 | #ifdef DEVAL | |
1813 | goto start; | |
1814 | #endif | |
1815 | loopnoap: | |
1816 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
1817 | loop: | |
1818 | #ifdef DEVAL | |
b7ff98dd MD |
1819 | SCM_CLEAR_ARGSREADY (debug); |
1820 | if (SCM_OVERFLOWP (debug)) | |
6dbd0af5 | 1821 | --debug.info; |
04b6c081 MD |
1822 | /* |
1823 | * In theory, this should be the only place where it is necessary to | |
1824 | * check for space in debug.vect since both eval frames and | |
1825 | * available space are even. | |
1826 | * | |
1827 | * For this to be the case, however, it is necessary that primitive | |
1828 | * special forms which jump back to `loop', `begin' or some similar | |
1829 | * label call PREP_APPLY. A convenient way to do this is to jump to | |
1830 | * `loopnoap' or `cdrxnoap'. | |
1831 | */ | |
c0ab1b8d | 1832 | else if (++debug.info >= debug_info_end) |
6dbd0af5 | 1833 | { |
b7ff98dd | 1834 | SCM_SET_OVERFLOW (debug); |
6dbd0af5 MD |
1835 | debug.info -= 2; |
1836 | } | |
1837 | start: | |
1838 | debug.info->e.exp = x; | |
1839 | debug.info->e.env = env; | |
b6d75948 | 1840 | if (CHECK_ENTRY && SCM_TRAPS_P) |
b7ff98dd | 1841 | if (SCM_ENTER_FRAME_P || (SCM_BREAKPOINTS_P && SRCBRKP (x))) |
6dbd0af5 | 1842 | { |
156dcb09 | 1843 | SCM tail = SCM_BOOL(SCM_TAILRECP (debug)); |
b7ff98dd | 1844 | SCM_SET_TAILREC (debug); |
b7ff98dd | 1845 | if (SCM_CHEAPTRAPS_P) |
c0ab1b8d | 1846 | t.arg1 = scm_make_debugobj (&debug); |
6dbd0af5 MD |
1847 | else |
1848 | { | |
5f144b10 GH |
1849 | int first; |
1850 | SCM val = scm_make_continuation (&first); | |
1851 | ||
1852 | if (first) | |
1853 | t.arg1 = val; | |
1854 | else | |
6dbd0af5 | 1855 | { |
5f144b10 | 1856 | x = val; |
6dbd0af5 MD |
1857 | if (SCM_IMP (x)) |
1858 | { | |
1859 | RETURN (x); | |
1860 | } | |
1861 | else | |
1862 | /* This gives the possibility for the debugger to | |
1863 | modify the source expression before evaluation. */ | |
1864 | goto dispatch; | |
1865 | } | |
1866 | } | |
2f0d1375 | 1867 | scm_ithrow (scm_sym_enter_frame, |
6dbd0af5 MD |
1868 | scm_cons2 (t.arg1, tail, |
1869 | scm_cons (scm_unmemocopy (x, env), SCM_EOL)), | |
1870 | 0); | |
1871 | } | |
6dbd0af5 | 1872 | #endif |
e3173f93 | 1873 | #if defined (USE_THREADS) || defined (DEVAL) |
f8769b1d | 1874 | dispatch: |
e3173f93 | 1875 | #endif |
9cb5124f | 1876 | SCM_TICK; |
0f2d19dd JB |
1877 | switch (SCM_TYP7 (x)) |
1878 | { | |
28b06554 | 1879 | case scm_tc7_symbol: |
0f2d19dd JB |
1880 | /* Only happens when called at top level. |
1881 | */ | |
1882 | x = scm_cons (x, SCM_UNDEFINED); | |
1883 | goto retval; | |
1884 | ||
c209c88e | 1885 | case SCM_BIT8(SCM_IM_AND): |
0f2d19dd JB |
1886 | x = SCM_CDR (x); |
1887 | t.arg1 = x; | |
1888 | while (SCM_NNULLP (t.arg1 = SCM_CDR (t.arg1))) | |
1889 | if (SCM_FALSEP (EVALCAR (x, env))) | |
1890 | { | |
1891 | RETURN (SCM_BOOL_F); | |
1892 | } | |
1893 | else | |
1894 | x = t.arg1; | |
6dbd0af5 | 1895 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1896 | goto carloop; |
1897 | ||
c209c88e | 1898 | case SCM_BIT8(SCM_IM_BEGIN): |
6dbd0af5 MD |
1899 | cdrxnoap: |
1900 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
0f2d19dd JB |
1901 | cdrxbegin: |
1902 | x = SCM_CDR (x); | |
1903 | ||
1904 | begin: | |
1905 | t.arg1 = x; | |
1906 | while (SCM_NNULLP (t.arg1 = SCM_CDR (t.arg1))) | |
1907 | { | |
26d5b9b4 MD |
1908 | if (SCM_IMP (SCM_CAR (x))) |
1909 | { | |
1910 | if (SCM_ISYMP (SCM_CAR (x))) | |
1911 | { | |
1912 | x = scm_m_expand_body (x, env); | |
1913 | goto begin; | |
1914 | } | |
1915 | } | |
1916 | else | |
1917 | SCM_CEVAL (SCM_CAR (x), env); | |
0f2d19dd JB |
1918 | x = t.arg1; |
1919 | } | |
1920 | ||
1921 | carloop: /* scm_eval car of last form in list */ | |
1922 | if (SCM_NCELLP (SCM_CAR (x))) | |
1923 | { | |
1924 | x = SCM_CAR (x); | |
6cb702da | 1925 | RETURN (SCM_IMP (x) ? SCM_EVALIM (x, env) : SCM_GLOC_VAL (x)) |
0f2d19dd JB |
1926 | } |
1927 | ||
1928 | if (SCM_SYMBOLP (SCM_CAR (x))) | |
1929 | { | |
1930 | retval: | |
26d5b9b4 | 1931 | RETURN (*scm_lookupcar (x, env, 1)) |
0f2d19dd JB |
1932 | } |
1933 | ||
1934 | x = SCM_CAR (x); | |
1935 | goto loop; /* tail recurse */ | |
1936 | ||
1937 | ||
c209c88e | 1938 | case SCM_BIT8(SCM_IM_CASE): |
0f2d19dd JB |
1939 | x = SCM_CDR (x); |
1940 | t.arg1 = EVALCAR (x, env); | |
1941 | while (SCM_NIMP (x = SCM_CDR (x))) | |
1942 | { | |
1943 | proc = SCM_CAR (x); | |
cf498326 | 1944 | if (SCM_EQ_P (scm_sym_else, SCM_CAR (proc))) |
0f2d19dd JB |
1945 | { |
1946 | x = SCM_CDR (proc); | |
6dbd0af5 | 1947 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1948 | goto begin; |
1949 | } | |
1950 | proc = SCM_CAR (proc); | |
1951 | while (SCM_NIMP (proc)) | |
1952 | { | |
1953 | if (CHECK_EQVISH (SCM_CAR (proc), t.arg1)) | |
1954 | { | |
1955 | x = SCM_CDR (SCM_CAR (x)); | |
6dbd0af5 | 1956 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1957 | goto begin; |
1958 | } | |
1959 | proc = SCM_CDR (proc); | |
1960 | } | |
1961 | } | |
6dbd0af5 | 1962 | RETURN (SCM_UNSPECIFIED) |
0f2d19dd JB |
1963 | |
1964 | ||
c209c88e | 1965 | case SCM_BIT8(SCM_IM_COND): |
0f2d19dd JB |
1966 | while (SCM_NIMP (x = SCM_CDR (x))) |
1967 | { | |
1968 | proc = SCM_CAR (x); | |
1969 | t.arg1 = EVALCAR (proc, env); | |
1970 | if (SCM_NFALSEP (t.arg1)) | |
1971 | { | |
1972 | x = SCM_CDR (proc); | |
6dbd0af5 | 1973 | if SCM_NULLP (x) |
0f2d19dd | 1974 | { |
6dbd0af5 | 1975 | RETURN (t.arg1) |
0f2d19dd | 1976 | } |
cf498326 | 1977 | if (! SCM_EQ_P (scm_sym_arrow, SCM_CAR (x))) |
6dbd0af5 MD |
1978 | { |
1979 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
1980 | goto begin; | |
1981 | } | |
0f2d19dd JB |
1982 | proc = SCM_CDR (x); |
1983 | proc = EVALCAR (proc, env); | |
1984 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
6dbd0af5 MD |
1985 | PREP_APPLY (proc, scm_cons (t.arg1, SCM_EOL)); |
1986 | ENTER_APPLY; | |
0f2d19dd JB |
1987 | goto evap1; |
1988 | } | |
1989 | } | |
6dbd0af5 | 1990 | RETURN (SCM_UNSPECIFIED) |
0f2d19dd JB |
1991 | |
1992 | ||
c209c88e | 1993 | case SCM_BIT8(SCM_IM_DO): |
0f2d19dd JB |
1994 | x = SCM_CDR (x); |
1995 | proc = SCM_CAR (SCM_CDR (x)); /* inits */ | |
1996 | t.arg1 = SCM_EOL; /* values */ | |
1997 | while (SCM_NIMP (proc)) | |
1998 | { | |
1999 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); | |
2000 | proc = SCM_CDR (proc); | |
2001 | } | |
e2806c10 | 2002 | env = EXTEND_ENV (SCM_CAR (x), t.arg1, env); |
0f2d19dd JB |
2003 | x = SCM_CDR (SCM_CDR (x)); |
2004 | while (proc = SCM_CAR (x), SCM_FALSEP (EVALCAR (proc, env))) | |
2005 | { | |
f3d2630a | 2006 | for (proc = SCM_CADR (x); SCM_NIMP (proc); proc = SCM_CDR (proc)) |
0f2d19dd JB |
2007 | { |
2008 | t.arg1 = SCM_CAR (proc); /* body */ | |
2009 | SIDEVAL (t.arg1, env); | |
2010 | } | |
f3d2630a MD |
2011 | for (t.arg1 = SCM_EOL, proc = SCM_CDDR (x); |
2012 | SCM_NIMP (proc); | |
2013 | proc = SCM_CDR (proc)) | |
0f2d19dd | 2014 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); /* steps */ |
e2806c10 | 2015 | env = EXTEND_ENV (SCM_CAR (SCM_CAR (env)), t.arg1, SCM_CDR (env)); |
0f2d19dd JB |
2016 | } |
2017 | x = SCM_CDR (proc); | |
2018 | if (SCM_NULLP (x)) | |
6dbd0af5 MD |
2019 | RETURN (SCM_UNSPECIFIED); |
2020 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
0f2d19dd JB |
2021 | goto begin; |
2022 | ||
2023 | ||
c209c88e | 2024 | case SCM_BIT8(SCM_IM_IF): |
0f2d19dd JB |
2025 | x = SCM_CDR (x); |
2026 | if (SCM_NFALSEP (EVALCAR (x, env))) | |
2027 | x = SCM_CDR (x); | |
2028 | else if (SCM_IMP (x = SCM_CDR (SCM_CDR (x)))) | |
2029 | { | |
2030 | RETURN (SCM_UNSPECIFIED); | |
2031 | } | |
6dbd0af5 | 2032 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
2033 | goto carloop; |
2034 | ||
2035 | ||
c209c88e | 2036 | case SCM_BIT8(SCM_IM_LET): |
0f2d19dd JB |
2037 | x = SCM_CDR (x); |
2038 | proc = SCM_CAR (SCM_CDR (x)); | |
2039 | t.arg1 = SCM_EOL; | |
2040 | do | |
2041 | { | |
2042 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); | |
2043 | } | |
2044 | while (SCM_NIMP (proc = SCM_CDR (proc))); | |
e2806c10 | 2045 | env = EXTEND_ENV (SCM_CAR (x), t.arg1, env); |
0f2d19dd | 2046 | x = SCM_CDR (x); |
6dbd0af5 | 2047 | goto cdrxnoap; |
0f2d19dd JB |
2048 | |
2049 | ||
c209c88e | 2050 | case SCM_BIT8(SCM_IM_LETREC): |
0f2d19dd | 2051 | x = SCM_CDR (x); |
e2806c10 | 2052 | env = EXTEND_ENV (SCM_CAR (x), scm_undefineds, env); |
0f2d19dd JB |
2053 | x = SCM_CDR (x); |
2054 | proc = SCM_CAR (x); | |
2055 | t.arg1 = SCM_EOL; | |
2056 | do | |
2057 | { | |
2058 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); | |
2059 | } | |
2060 | while (SCM_NIMP (proc = SCM_CDR (proc))); | |
a23afe53 | 2061 | SCM_SETCDR (SCM_CAR (env), t.arg1); |
6dbd0af5 | 2062 | goto cdrxnoap; |
0f2d19dd JB |
2063 | |
2064 | ||
c209c88e | 2065 | case SCM_BIT8(SCM_IM_LETSTAR): |
0f2d19dd JB |
2066 | x = SCM_CDR (x); |
2067 | proc = SCM_CAR (x); | |
2068 | if (SCM_IMP (proc)) | |
2069 | { | |
e2806c10 | 2070 | env = EXTEND_ENV (SCM_EOL, SCM_EOL, env); |
6dbd0af5 | 2071 | goto cdrxnoap; |
0f2d19dd JB |
2072 | } |
2073 | do | |
2074 | { | |
2075 | t.arg1 = SCM_CAR (proc); | |
2076 | proc = SCM_CDR (proc); | |
e2806c10 | 2077 | env = EXTEND_ENV (t.arg1, EVALCAR (proc, env), env); |
0f2d19dd JB |
2078 | } |
2079 | while (SCM_NIMP (proc = SCM_CDR (proc))); | |
6dbd0af5 | 2080 | goto cdrxnoap; |
0f2d19dd | 2081 | |
c209c88e | 2082 | case SCM_BIT8(SCM_IM_OR): |
0f2d19dd JB |
2083 | x = SCM_CDR (x); |
2084 | t.arg1 = x; | |
2085 | while (SCM_NNULLP (t.arg1 = SCM_CDR (t.arg1))) | |
2086 | { | |
2087 | x = EVALCAR (x, env); | |
2088 | if (SCM_NFALSEP (x)) | |
2089 | { | |
2090 | RETURN (x); | |
2091 | } | |
2092 | x = t.arg1; | |
2093 | } | |
6dbd0af5 | 2094 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
2095 | goto carloop; |
2096 | ||
2097 | ||
c209c88e | 2098 | case SCM_BIT8(SCM_IM_LAMBDA): |
0f2d19dd JB |
2099 | RETURN (scm_closure (SCM_CDR (x), env)); |
2100 | ||
2101 | ||
c209c88e | 2102 | case SCM_BIT8(SCM_IM_QUOTE): |
0f2d19dd JB |
2103 | RETURN (SCM_CAR (SCM_CDR (x))); |
2104 | ||
2105 | ||
c209c88e | 2106 | case SCM_BIT8(SCM_IM_SET_X): |
0f2d19dd JB |
2107 | x = SCM_CDR (x); |
2108 | proc = SCM_CAR (x); | |
3201d763 | 2109 | switch (SCM_ITAG3 (proc)) |
0f2d19dd | 2110 | { |
3201d763 | 2111 | case scm_tc3_cons: |
26d5b9b4 | 2112 | t.lloc = scm_lookupcar (x, env, 1); |
0f2d19dd | 2113 | break; |
3201d763 | 2114 | case scm_tc3_cons_gloc: |
a23afe53 | 2115 | t.lloc = SCM_GLOC_VAL_LOC (proc); |
0f2d19dd JB |
2116 | break; |
2117 | #ifdef MEMOIZE_LOCALS | |
3201d763 | 2118 | case scm_tc3_imm24: |
0f2d19dd JB |
2119 | t.lloc = scm_ilookup (proc, env); |
2120 | break; | |
2121 | #endif | |
2122 | } | |
2123 | x = SCM_CDR (x); | |
2124 | *t.lloc = EVALCAR (x, env); | |
0f2d19dd JB |
2125 | #ifdef SICP |
2126 | RETURN (*t.lloc); | |
2127 | #else | |
2128 | RETURN (SCM_UNSPECIFIED); | |
2129 | #endif | |
2130 | ||
2131 | ||
c209c88e | 2132 | case SCM_BIT8(SCM_IM_DEFINE): /* only for internal defines */ |
26d5b9b4 MD |
2133 | scm_misc_error (NULL, "Bad define placement", SCM_EOL); |
2134 | ||
0f2d19dd | 2135 | /* new syntactic forms go here. */ |
c209c88e | 2136 | case SCM_BIT8(SCM_MAKISYM (0)): |
0f2d19dd JB |
2137 | proc = SCM_CAR (x); |
2138 | SCM_ASRTGO (SCM_ISYMP (proc), badfun); | |
2139 | switch SCM_ISYMNUM (proc) | |
2140 | { | |
0f2d19dd JB |
2141 | case (SCM_ISYMNUM (SCM_IM_APPLY)): |
2142 | proc = SCM_CDR (x); | |
2143 | proc = EVALCAR (proc, env); | |
2144 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
2145 | if (SCM_CLOSUREP (proc)) | |
2146 | { | |
1609038c | 2147 | SCM argl, tl; |
6dbd0af5 | 2148 | PREP_APPLY (proc, SCM_EOL); |
0f2d19dd JB |
2149 | t.arg1 = SCM_CDR (SCM_CDR (x)); |
2150 | t.arg1 = EVALCAR (t.arg1, env); | |
6dbd0af5 MD |
2151 | #ifdef DEVAL |
2152 | debug.info->a.args = t.arg1; | |
2153 | #endif | |
cf7c17e9 | 2154 | #ifndef SCM_RECKLESS |
0f2d19dd JB |
2155 | if (scm_badargsp (SCM_CAR (SCM_CODE (proc)), t.arg1)) |
2156 | goto wrongnumargs; | |
2157 | #endif | |
c79450dd | 2158 | ENTER_APPLY; |
1609038c MD |
2159 | /* Copy argument list */ |
2160 | if (SCM_IMP (t.arg1)) | |
2161 | argl = t.arg1; | |
2162 | else | |
2163 | { | |
2164 | argl = tl = scm_cons (SCM_CAR (t.arg1), SCM_UNSPECIFIED); | |
2165 | while (SCM_NIMP (t.arg1 = SCM_CDR (t.arg1)) | |
2166 | && SCM_CONSP (t.arg1)) | |
2167 | { | |
2168 | SCM_SETCDR (tl, scm_cons (SCM_CAR (t.arg1), | |
2169 | SCM_UNSPECIFIED)); | |
2170 | tl = SCM_CDR (tl); | |
2171 | } | |
2172 | SCM_SETCDR (tl, t.arg1); | |
2173 | } | |
2174 | ||
2175 | env = EXTEND_ENV (SCM_CAR (SCM_CODE (proc)), argl, SCM_ENV (proc)); | |
0f2d19dd JB |
2176 | x = SCM_CODE (proc); |
2177 | goto cdrxbegin; | |
2178 | } | |
81123e6d | 2179 | proc = scm_f_apply; |
0f2d19dd JB |
2180 | goto evapply; |
2181 | ||
2182 | case (SCM_ISYMNUM (SCM_IM_CONT)): | |
5f144b10 GH |
2183 | { |
2184 | int first; | |
2185 | SCM val = scm_make_continuation (&first); | |
2186 | ||
2187 | if (first) | |
2188 | t.arg1 = val; | |
2189 | else | |
2190 | RETURN (val); | |
2191 | } | |
0f2d19dd JB |
2192 | proc = SCM_CDR (x); |
2193 | proc = evalcar (proc, env); | |
2194 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
6dbd0af5 MD |
2195 | PREP_APPLY (proc, scm_cons (t.arg1, SCM_EOL)); |
2196 | ENTER_APPLY; | |
0f2d19dd JB |
2197 | goto evap1; |
2198 | ||
a570e93a MD |
2199 | case (SCM_ISYMNUM (SCM_IM_DELAY)): |
2200 | RETURN (scm_makprom (scm_closure (SCM_CDR (x), env))) | |
2201 | ||
89efbff4 | 2202 | case (SCM_ISYMNUM (SCM_IM_DISPATCH)): |
195847fa MD |
2203 | proc = SCM_CADR (x); /* unevaluated operands */ |
2204 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
2205 | if (SCM_IMP (proc)) | |
2206 | arg2 = *scm_ilookup (proc, env); | |
2207 | else if (SCM_NCONSP (proc)) | |
2208 | { | |
2209 | if (SCM_NCELLP (proc)) | |
2210 | arg2 = SCM_GLOC_VAL (proc); | |
2211 | else | |
2212 | arg2 = *scm_lookupcar (SCM_CDR (x), env, 1); | |
2213 | } | |
2214 | else | |
2215 | { | |
2216 | arg2 = scm_cons (EVALCAR (proc, env), SCM_EOL); | |
2217 | t.lloc = SCM_CDRLOC (arg2); | |
2218 | while (SCM_NIMP (proc = SCM_CDR (proc))) | |
2219 | { | |
2220 | *t.lloc = scm_cons (EVALCAR (proc, env), SCM_EOL); | |
2221 | t.lloc = SCM_CDRLOC (*t.lloc); | |
2222 | } | |
2223 | } | |
2224 | ||
2225 | type_dispatch: | |
61364ba6 MD |
2226 | /* The type dispatch code is duplicated here |
2227 | * (c.f. objects.c:scm_mcache_compute_cmethod) since that | |
2228 | * cuts down execution time for type dispatch to 50%. | |
2229 | */ | |
2230 | { | |
2231 | int i, n, end, mask; | |
2232 | SCM z = SCM_CDDR (x); | |
2233 | n = SCM_INUM (SCM_CAR (z)); /* maximum number of specializers */ | |
2234 | proc = SCM_CADR (z); | |
2235 | ||
2236 | if (SCM_NIMP (proc)) | |
2237 | { | |
2238 | /* Prepare for linear search */ | |
2239 | mask = -1; | |
2240 | i = 0; | |
b5c2579a | 2241 | end = SCM_VECTOR_LENGTH (proc); |
61364ba6 MD |
2242 | } |
2243 | else | |
2244 | { | |
2245 | /* Compute a hash value */ | |
2246 | int hashset = SCM_INUM (proc); | |
2247 | int j = n; | |
2248 | mask = SCM_INUM (SCM_CAR (z = SCM_CDDR (z))); | |
2249 | proc = SCM_CADR (z); | |
2250 | i = 0; | |
2251 | t.arg1 = arg2; | |
2252 | if (SCM_NIMP (t.arg1)) | |
2253 | do | |
2254 | { | |
d8c40b9f DH |
2255 | i += SCM_STRUCT_DATA (scm_class_of (SCM_CAR (t.arg1))) |
2256 | [scm_si_hashsets + hashset]; | |
61364ba6 MD |
2257 | t.arg1 = SCM_CDR (t.arg1); |
2258 | } | |
4ea6a431 | 2259 | while (j-- && SCM_NIMP (t.arg1)); |
61364ba6 MD |
2260 | i &= mask; |
2261 | end = i; | |
2262 | } | |
2263 | ||
2264 | /* Search for match */ | |
2265 | do | |
2266 | { | |
2267 | int j = n; | |
2268 | z = SCM_VELTS (proc)[i]; | |
2269 | t.arg1 = arg2; /* list of arguments */ | |
2270 | if (SCM_NIMP (t.arg1)) | |
2271 | do | |
2272 | { | |
2273 | /* More arguments than specifiers => CLASS != ENV */ | |
cf498326 | 2274 | if (! SCM_EQ_P (scm_class_of (SCM_CAR (t.arg1)), SCM_CAR (z))) |
61364ba6 MD |
2275 | goto next_method; |
2276 | t.arg1 = SCM_CDR (t.arg1); | |
2277 | z = SCM_CDR (z); | |
2278 | } | |
4ea6a431 | 2279 | while (j-- && SCM_NIMP (t.arg1)); |
61364ba6 MD |
2280 | /* Fewer arguments than specifiers => CAR != ENV */ |
2281 | if (!(SCM_IMP (SCM_CAR (z)) || SCM_CONSP (SCM_CAR (z)))) | |
2282 | goto next_method; | |
2283 | apply_cmethod: | |
2284 | env = EXTEND_ENV (SCM_CAR (SCM_CMETHOD_CODE (z)), | |
2285 | arg2, | |
2286 | SCM_CMETHOD_ENV (z)); | |
2287 | x = SCM_CMETHOD_CODE (z); | |
2288 | goto cdrxbegin; | |
2289 | next_method: | |
2290 | i = (i + 1) & mask; | |
2291 | } while (i != end); | |
2292 | ||
2293 | z = scm_memoize_method (x, arg2); | |
2294 | goto apply_cmethod; | |
2295 | } | |
73b64342 | 2296 | |
ca4be6ea MD |
2297 | case (SCM_ISYMNUM (SCM_IM_SLOT_REF)): |
2298 | x = SCM_CDR (x); | |
2299 | t.arg1 = EVALCAR (x, env); | |
d8c40b9f | 2300 | RETURN (SCM_PACK (SCM_STRUCT_DATA (t.arg1) [SCM_INUM (SCM_CADR (x))])) |
ca4be6ea MD |
2301 | |
2302 | case (SCM_ISYMNUM (SCM_IM_SLOT_SET_X)): | |
2303 | x = SCM_CDR (x); | |
2304 | t.arg1 = EVALCAR (x, env); | |
2305 | x = SCM_CDR (x); | |
2306 | proc = SCM_CDR (x); | |
d8c40b9f DH |
2307 | SCM_STRUCT_DATA (t.arg1) [SCM_INUM (SCM_CAR (x))] |
2308 | = SCM_UNPACK (EVALCAR (proc, env)); | |
5623a9b4 | 2309 | RETURN (SCM_UNSPECIFIED) |
ca4be6ea | 2310 | |
73b64342 MD |
2311 | case (SCM_ISYMNUM (SCM_IM_NIL_COND)): |
2312 | proc = SCM_CDR (x); | |
2313 | while (SCM_NIMP (x = SCM_CDR (proc))) | |
2314 | { | |
2315 | if (!(SCM_FALSEP (t.arg1 = EVALCAR (proc, env)) | |
3201d763 | 2316 | || SCM_EQ_P (t.arg1, scm_lisp_nil))) |
73b64342 | 2317 | { |
cf498326 | 2318 | if (SCM_EQ_P (SCM_CAR (x), SCM_UNSPECIFIED)) |
73b64342 MD |
2319 | RETURN (t.arg1); |
2320 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
2321 | goto carloop; | |
2322 | } | |
2323 | proc = SCM_CDR (x); | |
2324 | } | |
2325 | x = proc; | |
2326 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
2327 | goto carloop; | |
2328 | ||
2329 | case (SCM_ISYMNUM (SCM_IM_NIL_IFY)): | |
2330 | x = SCM_CDR (x); | |
2331 | RETURN ((SCM_FALSEP (proc = EVALCAR (x, env)) || SCM_NULLP (proc)) | |
43a912cf | 2332 | ? scm_lisp_nil |
73b64342 MD |
2333 | : proc) |
2334 | ||
2335 | case (SCM_ISYMNUM (SCM_IM_T_IFY)): | |
2336 | x = SCM_CDR (x); | |
43a912cf | 2337 | RETURN (SCM_NFALSEP (EVALCAR (x, env)) ? scm_lisp_t : scm_lisp_nil) |
73b64342 MD |
2338 | |
2339 | case (SCM_ISYMNUM (SCM_IM_0_COND)): | |
2340 | proc = SCM_CDR (x); | |
2341 | while (SCM_NIMP (x = SCM_CDR (proc))) | |
2342 | { | |
2343 | if (!(SCM_FALSEP (t.arg1 = EVALCAR (proc, env)) | |
3201d763 | 2344 | || SCM_EQ_P (t.arg1, SCM_INUM0))) |
73b64342 | 2345 | { |
cf498326 | 2346 | if (SCM_EQ_P (SCM_CAR (x), SCM_UNSPECIFIED)) |
73b64342 MD |
2347 | RETURN (t.arg1); |
2348 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
2349 | goto carloop; | |
2350 | } | |
2351 | proc = SCM_CDR (x); | |
2352 | } | |
2353 | x = proc; | |
2354 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
2355 | goto carloop; | |
2356 | ||
2357 | case (SCM_ISYMNUM (SCM_IM_0_IFY)): | |
2358 | x = SCM_CDR (x); | |
2359 | RETURN (SCM_FALSEP (proc = EVALCAR (x, env)) | |
2360 | ? SCM_INUM0 | |
2361 | : proc) | |
2362 | ||
2363 | case (SCM_ISYMNUM (SCM_IM_1_IFY)): | |
2364 | x = SCM_CDR (x); | |
2365 | RETURN (SCM_NFALSEP (EVALCAR (x, env)) | |
2366 | ? SCM_MAKINUM (1) | |
2367 | : SCM_INUM0) | |
2368 | ||
2369 | case (SCM_ISYMNUM (SCM_IM_BIND)): | |
2370 | x = SCM_CDR (x); | |
2371 | ||
2372 | t.arg1 = SCM_CAR (x); | |
2373 | arg2 = SCM_CDAR (env); | |
2374 | while (SCM_NIMP (arg2)) | |
2375 | { | |
2376 | proc = SCM_GLOC_VAL (SCM_CAR (t.arg1)); | |
a963f787 MD |
2377 | SCM_SETCDR (SCM_PACK (SCM_UNPACK (SCM_CAR (t.arg1)) - 1L), |
2378 | SCM_CAR (arg2)); | |
73b64342 MD |
2379 | SCM_SETCAR (arg2, proc); |
2380 | t.arg1 = SCM_CDR (t.arg1); | |
2381 | arg2 = SCM_CDR (arg2); | |
2382 | } | |
2383 | t.arg1 = SCM_CAR (x); | |
2384 | scm_dynwinds = scm_acons (t.arg1, SCM_CDAR (env), scm_dynwinds); | |
89efbff4 | 2385 | |
73b64342 MD |
2386 | arg2 = x = SCM_CDR (x); |
2387 | while (SCM_NNULLP (arg2 = SCM_CDR (arg2))) | |
2388 | { | |
2389 | SIDEVAL (SCM_CAR (x), env); | |
2390 | x = arg2; | |
2391 | } | |
2392 | proc = EVALCAR (x, env); | |
2393 | ||
2394 | scm_dynwinds = SCM_CDR (scm_dynwinds); | |
2395 | arg2 = SCM_CDAR (env); | |
2396 | while (SCM_NIMP (arg2)) | |
2397 | { | |
a963f787 MD |
2398 | SCM_SETCDR (SCM_PACK (SCM_UNPACK (SCM_CAR (t.arg1)) - 1L), |
2399 | SCM_CAR (arg2)); | |
73b64342 MD |
2400 | t.arg1 = SCM_CDR (t.arg1); |
2401 | arg2 = SCM_CDR (arg2); | |
2402 | } | |
2403 | ||
2404 | RETURN (proc) | |
2405 | ||
0f2d19dd JB |
2406 | default: |
2407 | goto badfun; | |
2408 | } | |
2409 | ||
2410 | default: | |
2411 | proc = x; | |
2412 | badfun: | |
f5bf2977 | 2413 | /* scm_everr (x, env,...) */ |
523f5266 | 2414 | scm_misc_error (NULL, |
70d63753 | 2415 | "Wrong type to apply: ~S", |
523f5266 | 2416 | scm_listify (proc, SCM_UNDEFINED)); |
0f2d19dd JB |
2417 | case scm_tc7_vector: |
2418 | case scm_tc7_wvect: | |
afe5177e | 2419 | #ifdef HAVE_ARRAYS |
0f2d19dd JB |
2420 | case scm_tc7_bvect: |
2421 | case scm_tc7_byvect: | |
2422 | case scm_tc7_svect: | |
2423 | case scm_tc7_ivect: | |
2424 | case scm_tc7_uvect: | |
2425 | case scm_tc7_fvect: | |
2426 | case scm_tc7_dvect: | |
2427 | case scm_tc7_cvect: | |
5c11cc9d | 2428 | #ifdef HAVE_LONG_LONGS |
0f2d19dd | 2429 | case scm_tc7_llvect: |
afe5177e | 2430 | #endif |
0f2d19dd JB |
2431 | #endif |
2432 | case scm_tc7_string: | |
0f2d19dd | 2433 | case scm_tc7_substring: |
0f2d19dd JB |
2434 | case scm_tc7_smob: |
2435 | case scm_tcs_closures: | |
224822be | 2436 | case scm_tc7_cclo: |
89efbff4 | 2437 | case scm_tc7_pws: |
0f2d19dd JB |
2438 | case scm_tcs_subrs: |
2439 | RETURN (x); | |
2440 | ||
2441 | #ifdef MEMOIZE_LOCALS | |
c209c88e | 2442 | case SCM_BIT8(SCM_ILOC00): |
0f2d19dd JB |
2443 | proc = *scm_ilookup (SCM_CAR (x), env); |
2444 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
cf7c17e9 JB |
2445 | #ifndef SCM_RECKLESS |
2446 | #ifdef SCM_CAUTIOUS | |
0f2d19dd JB |
2447 | goto checkargs; |
2448 | #endif | |
2449 | #endif | |
2450 | break; | |
2451 | #endif /* ifdef MEMOIZE_LOCALS */ | |
2452 | ||
2453 | ||
3201d763 DH |
2454 | case scm_tcs_cons_gloc: { |
2455 | scm_bits_t vcell = SCM_STRUCT_VTABLE_DATA (x) [scm_vtable_index_vcell]; | |
2456 | if (vcell == 0) { | |
aa00bd1e MD |
2457 | /* This is a struct implanted in the code, not a gloc. */ |
2458 | RETURN (x); | |
3201d763 DH |
2459 | } else { |
2460 | proc = SCM_PACK (vcell); | |
2461 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
cf7c17e9 JB |
2462 | #ifndef SCM_RECKLESS |
2463 | #ifdef SCM_CAUTIOUS | |
3201d763 | 2464 | goto checkargs; |
0f2d19dd JB |
2465 | #endif |
2466 | #endif | |
3201d763 | 2467 | } |
0f2d19dd | 2468 | break; |
3201d763 | 2469 | } |
0f2d19dd JB |
2470 | |
2471 | case scm_tcs_cons_nimcar: | |
2472 | if (SCM_SYMBOLP (SCM_CAR (x))) | |
2473 | { | |
f8769b1d | 2474 | #ifdef USE_THREADS |
26d5b9b4 | 2475 | t.lloc = scm_lookupcar1 (x, env, 1); |
f8769b1d MV |
2476 | if (t.lloc == NULL) |
2477 | { | |
2478 | /* we have lost the race, start again. */ | |
2479 | goto dispatch; | |
2480 | } | |
2481 | proc = *t.lloc; | |
2482 | #else | |
26d5b9b4 | 2483 | proc = *scm_lookupcar (x, env, 1); |
f8769b1d MV |
2484 | #endif |
2485 | ||
0f2d19dd JB |
2486 | if (SCM_IMP (proc)) |
2487 | { | |
2488 | unmemocar (x, env); | |
2489 | goto badfun; | |
2490 | } | |
2491 | if (scm_tc16_macro == SCM_TYP16 (proc)) | |
2492 | { | |
2493 | unmemocar (x, env); | |
2494 | ||
2495 | handle_a_macro: | |
368bf056 | 2496 | #ifdef DEVAL |
7c354052 MD |
2497 | /* Set a flag during macro expansion so that macro |
2498 | application frames can be deleted from the backtrace. */ | |
2499 | SCM_SET_MACROEXP (debug); | |
368bf056 | 2500 | #endif |
f8769b1d MV |
2501 | t.arg1 = SCM_APPLY (SCM_CDR (proc), x, |
2502 | scm_cons (env, scm_listofnull)); | |
2503 | ||
7c354052 MD |
2504 | #ifdef DEVAL |
2505 | SCM_CLEAR_MACROEXP (debug); | |
2506 | #endif | |
445f675c | 2507 | switch (SCM_CELL_WORD_0 (proc) >> 16) |
0f2d19dd JB |
2508 | { |
2509 | case 2: | |
2510 | if (scm_ilength (t.arg1) <= 0) | |
2511 | t.arg1 = scm_cons2 (SCM_IM_BEGIN, t.arg1, SCM_EOL); | |
6dbd0af5 MD |
2512 | #ifdef DEVAL |
2513 | if (!SCM_CLOSUREP (SCM_CDR (proc))) | |
2514 | { | |
6dbd0af5 | 2515 | SCM_DEFER_INTS; |
a23afe53 MD |
2516 | SCM_SETCAR (x, SCM_CAR (t.arg1)); |
2517 | SCM_SETCDR (x, SCM_CDR (t.arg1)); | |
6dbd0af5 MD |
2518 | SCM_ALLOW_INTS; |
2519 | goto dispatch; | |
2520 | } | |
2521 | /* Prevent memoizing of debug info expression. */ | |
6203706f MD |
2522 | debug.info->e.exp = scm_cons_source (debug.info->e.exp, |
2523 | SCM_CAR (x), | |
2524 | SCM_CDR (x)); | |
6dbd0af5 | 2525 | #endif |
0f2d19dd | 2526 | SCM_DEFER_INTS; |
a23afe53 MD |
2527 | SCM_SETCAR (x, SCM_CAR (t.arg1)); |
2528 | SCM_SETCDR (x, SCM_CDR (t.arg1)); | |
0f2d19dd | 2529 | SCM_ALLOW_INTS; |
6dbd0af5 | 2530 | goto loopnoap; |
0f2d19dd JB |
2531 | case 1: |
2532 | if (SCM_NIMP (x = t.arg1)) | |
6dbd0af5 | 2533 | goto loopnoap; |
0f2d19dd JB |
2534 | case 0: |
2535 | RETURN (t.arg1); | |
2536 | } | |
2537 | } | |
2538 | } | |
2539 | else | |
2540 | proc = SCM_CEVAL (SCM_CAR (x), env); | |
2541 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
cf7c17e9 JB |
2542 | #ifndef SCM_RECKLESS |
2543 | #ifdef SCM_CAUTIOUS | |
0f2d19dd JB |
2544 | checkargs: |
2545 | #endif | |
2546 | if (SCM_CLOSUREP (proc)) | |
2547 | { | |
2548 | arg2 = SCM_CAR (SCM_CODE (proc)); | |
2549 | t.arg1 = SCM_CDR (x); | |
2550 | while (SCM_NIMP (arg2)) | |
2551 | { | |
2552 | if (SCM_NCONSP (arg2)) | |
2553 | goto evapply; | |
2554 | if (SCM_IMP (t.arg1)) | |
2555 | goto umwrongnumargs; | |
2556 | arg2 = SCM_CDR (arg2); | |
2557 | t.arg1 = SCM_CDR (t.arg1); | |
2558 | } | |
2559 | if (SCM_NNULLP (t.arg1)) | |
2560 | goto umwrongnumargs; | |
2561 | } | |
2562 | else if (scm_tc16_macro == SCM_TYP16 (proc)) | |
2563 | goto handle_a_macro; | |
2564 | #endif | |
2565 | } | |
2566 | ||
2567 | ||
6dbd0af5 MD |
2568 | evapply: |
2569 | PREP_APPLY (proc, SCM_EOL); | |
2570 | if (SCM_NULLP (SCM_CDR (x))) { | |
2571 | ENTER_APPLY; | |
89efbff4 | 2572 | evap0: |
0f2d19dd JB |
2573 | switch (SCM_TYP7 (proc)) |
2574 | { /* no arguments given */ | |
2575 | case scm_tc7_subr_0: | |
2576 | RETURN (SCM_SUBRF (proc) ()); | |
2577 | case scm_tc7_subr_1o: | |
2578 | RETURN (SCM_SUBRF (proc) (SCM_UNDEFINED)); | |
2579 | case scm_tc7_lsubr: | |
2580 | RETURN (SCM_SUBRF (proc) (SCM_EOL)); | |
2581 | case scm_tc7_rpsubr: | |
2582 | RETURN (SCM_BOOL_T); | |
2583 | case scm_tc7_asubr: | |
2584 | RETURN (SCM_SUBRF (proc) (SCM_UNDEFINED, SCM_UNDEFINED)); | |
0717dfd8 | 2585 | case scm_tc7_smob: |
68b06924 | 2586 | if (!SCM_SMOB_APPLICABLE_P (proc)) |
0717dfd8 | 2587 | goto badfun; |
68b06924 | 2588 | RETURN (SCM_SMOB_APPLY_0 (proc)); |
0f2d19dd JB |
2589 | case scm_tc7_cclo: |
2590 | t.arg1 = proc; | |
2591 | proc = SCM_CCLO_SUBR (proc); | |
6dbd0af5 MD |
2592 | #ifdef DEVAL |
2593 | debug.info->a.proc = proc; | |
2594 | debug.info->a.args = scm_cons (t.arg1, SCM_EOL); | |
2595 | #endif | |
0f2d19dd | 2596 | goto evap1; |
89efbff4 MD |
2597 | case scm_tc7_pws: |
2598 | proc = SCM_PROCEDURE (proc); | |
2599 | #ifdef DEVAL | |
2600 | debug.info->a.proc = proc; | |
2601 | #endif | |
002f1a5d MD |
2602 | if (!SCM_CLOSUREP (proc)) |
2603 | goto evap0; | |
2604 | if (scm_badformalsp (proc, 0)) | |
2605 | goto umwrongnumargs; | |
0f2d19dd JB |
2606 | case scm_tcs_closures: |
2607 | x = SCM_CODE (proc); | |
e2806c10 | 2608 | env = EXTEND_ENV (SCM_CAR (x), SCM_EOL, SCM_ENV (proc)); |
0f2d19dd | 2609 | goto cdrxbegin; |
da7f71d7 | 2610 | case scm_tcs_cons_gloc: |
195847fa MD |
2611 | if (SCM_OBJ_CLASS_FLAGS (proc) & SCM_CLASSF_PURE_GENERIC) |
2612 | { | |
2613 | x = SCM_ENTITY_PROCEDURE (proc); | |
2614 | arg2 = SCM_EOL; | |
2615 | goto type_dispatch; | |
2616 | } | |
2617 | else if (!SCM_I_OPERATORP (proc)) | |
9b07e212 MD |
2618 | goto badfun; |
2619 | else | |
da7f71d7 | 2620 | { |
195847fa MD |
2621 | t.arg1 = proc; |
2622 | proc = (SCM_I_ENTITYP (proc) | |
2623 | ? SCM_ENTITY_PROCEDURE (proc) | |
2624 | : SCM_OPERATOR_PROCEDURE (proc)); | |
da7f71d7 | 2625 | #ifdef DEVAL |
195847fa MD |
2626 | debug.info->a.proc = proc; |
2627 | debug.info->a.args = scm_cons (t.arg1, SCM_EOL); | |
da7f71d7 | 2628 | #endif |
195847fa MD |
2629 | if (SCM_NIMP (proc)) |
2630 | goto evap1; | |
2631 | else | |
2632 | goto badfun; | |
da7f71d7 | 2633 | } |
0f2d19dd JB |
2634 | case scm_tc7_subr_1: |
2635 | case scm_tc7_subr_2: | |
2636 | case scm_tc7_subr_2o: | |
2637 | case scm_tc7_cxr: | |
2638 | case scm_tc7_subr_3: | |
2639 | case scm_tc7_lsubr_2: | |
2640 | umwrongnumargs: | |
2641 | unmemocar (x, env); | |
2642 | wrongnumargs: | |
f5bf2977 GH |
2643 | /* scm_everr (x, env,...) */ |
2644 | scm_wrong_num_args (proc); | |
0f2d19dd JB |
2645 | default: |
2646 | /* handle macros here */ | |
2647 | goto badfun; | |
2648 | } | |
6dbd0af5 | 2649 | } |
0f2d19dd JB |
2650 | |
2651 | /* must handle macros by here */ | |
2652 | x = SCM_CDR (x); | |
cf7c17e9 | 2653 | #ifdef SCM_CAUTIOUS |
0f2d19dd JB |
2654 | if (SCM_IMP (x)) |
2655 | goto wrongnumargs; | |
680ed4a8 MD |
2656 | else if (SCM_CONSP (x)) |
2657 | { | |
2658 | if (SCM_IMP (SCM_CAR (x))) | |
6cb702da | 2659 | t.arg1 = SCM_EVALIM (SCM_CAR (x), env); |
680ed4a8 MD |
2660 | else |
2661 | t.arg1 = EVALCELLCAR (x, env); | |
2662 | } | |
3201d763 | 2663 | else if (SCM_TYP3 (x) == scm_tc3_cons_gloc) |
680ed4a8 | 2664 | { |
3201d763 DH |
2665 | scm_bits_t vcell = SCM_STRUCT_VTABLE_DATA (x) [scm_vtable_index_vcell]; |
2666 | if (vcell == 0) | |
680ed4a8 | 2667 | t.arg1 = SCM_CAR (x); /* struct planted in code */ |
3201d763 DH |
2668 | else |
2669 | t.arg1 = SCM_PACK (vcell); | |
680ed4a8 MD |
2670 | } |
2671 | else | |
2672 | goto wrongnumargs; | |
2673 | #else | |
0f2d19dd | 2674 | t.arg1 = EVALCAR (x, env); |
680ed4a8 | 2675 | #endif |
6dbd0af5 MD |
2676 | #ifdef DEVAL |
2677 | debug.info->a.args = scm_cons (t.arg1, SCM_EOL); | |
2678 | #endif | |
0f2d19dd JB |
2679 | x = SCM_CDR (x); |
2680 | if (SCM_NULLP (x)) | |
2681 | { | |
6dbd0af5 | 2682 | ENTER_APPLY; |
0f2d19dd JB |
2683 | evap1: |
2684 | switch (SCM_TYP7 (proc)) | |
6dbd0af5 | 2685 | { /* have one argument in t.arg1 */ |
0f2d19dd JB |
2686 | case scm_tc7_subr_2o: |
2687 | RETURN (SCM_SUBRF (proc) (t.arg1, SCM_UNDEFINED)); | |
2688 | case scm_tc7_subr_1: | |
2689 | case scm_tc7_subr_1o: | |
2690 | RETURN (SCM_SUBRF (proc) (t.arg1)); | |
2691 | case scm_tc7_cxr: | |
0f2d19dd JB |
2692 | if (SCM_SUBRF (proc)) |
2693 | { | |
2694 | if (SCM_INUMP (t.arg1)) | |
2695 | { | |
f8de44c1 | 2696 | RETURN (scm_make_real (SCM_DSUBRF (proc) ((double) SCM_INUM (t.arg1)))); |
0f2d19dd JB |
2697 | } |
2698 | SCM_ASRTGO (SCM_NIMP (t.arg1), floerr); | |
2699 | if (SCM_REALP (t.arg1)) | |
2700 | { | |
eb42e2f0 | 2701 | RETURN (scm_make_real (SCM_DSUBRF (proc) (SCM_REAL_VALUE (t.arg1)))); |
0f2d19dd JB |
2702 | } |
2703 | #ifdef SCM_BIGDIG | |
2704 | if (SCM_BIGP (t.arg1)) | |
2705 | { | |
f8de44c1 | 2706 | RETURN (scm_make_real (SCM_DSUBRF (proc) (scm_big2dbl (t.arg1)))); |
0f2d19dd JB |
2707 | } |
2708 | #endif | |
2709 | floerr: | |
9de33deb | 2710 | SCM_WTA_DISPATCH_1 (*SCM_SUBR_GENERIC (proc), t.arg1, |
3db4adfc | 2711 | SCM_ARG1, SCM_SYMBOL_CHARS (SCM_SNAME (proc))); |
0f2d19dd | 2712 | } |
3201d763 | 2713 | proc = SCM_SNAME (proc); |
0f2d19dd | 2714 | { |
b5c2579a | 2715 | char *chrs = SCM_SYMBOL_CHARS (proc) + SCM_SYMBOL_LENGTH (proc) - 1; |
0f2d19dd JB |
2716 | while ('c' != *--chrs) |
2717 | { | |
0c95b57d | 2718 | SCM_ASSERT (SCM_CONSP (t.arg1), |
3db4adfc | 2719 | t.arg1, SCM_ARG1, SCM_SYMBOL_CHARS (proc)); |
0f2d19dd JB |
2720 | t.arg1 = ('a' == *chrs) ? SCM_CAR (t.arg1) : SCM_CDR (t.arg1); |
2721 | } | |
2722 | RETURN (t.arg1); | |
2723 | } | |
2724 | case scm_tc7_rpsubr: | |
2725 | RETURN (SCM_BOOL_T); | |
2726 | case scm_tc7_asubr: | |
2727 | RETURN (SCM_SUBRF (proc) (t.arg1, SCM_UNDEFINED)); | |
2728 | case scm_tc7_lsubr: | |
2729 | #ifdef DEVAL | |
6dbd0af5 | 2730 | RETURN (SCM_SUBRF (proc) (debug.info->a.args)) |
0f2d19dd JB |
2731 | #else |
2732 | RETURN (SCM_SUBRF (proc) (scm_cons (t.arg1, SCM_EOL))); | |
2733 | #endif | |
0717dfd8 | 2734 | case scm_tc7_smob: |
68b06924 | 2735 | if (!SCM_SMOB_APPLICABLE_P (proc)) |
0717dfd8 | 2736 | goto badfun; |
68b06924 | 2737 | RETURN (SCM_SMOB_APPLY_1 (proc, t.arg1)); |
0f2d19dd JB |
2738 | case scm_tc7_cclo: |
2739 | arg2 = t.arg1; | |
2740 | t.arg1 = proc; | |
2741 | proc = SCM_CCLO_SUBR (proc); | |
6dbd0af5 MD |
2742 | #ifdef DEVAL |
2743 | debug.info->a.args = scm_cons (t.arg1, debug.info->a.args); | |
2744 | debug.info->a.proc = proc; | |
2745 | #endif | |
0f2d19dd | 2746 | goto evap2; |
89efbff4 MD |
2747 | case scm_tc7_pws: |
2748 | proc = SCM_PROCEDURE (proc); | |
2749 | #ifdef DEVAL | |
2750 | debug.info->a.proc = proc; | |
2751 | #endif | |
002f1a5d MD |
2752 | if (!SCM_CLOSUREP (proc)) |
2753 | goto evap1; | |
2754 | if (scm_badformalsp (proc, 1)) | |
2755 | goto umwrongnumargs; | |
0f2d19dd | 2756 | case scm_tcs_closures: |
195847fa | 2757 | /* clos1: */ |
0f2d19dd JB |
2758 | x = SCM_CODE (proc); |
2759 | #ifdef DEVAL | |
e2806c10 | 2760 | env = EXTEND_ENV (SCM_CAR (x), debug.info->a.args, SCM_ENV (proc)); |
0f2d19dd | 2761 | #else |
e2806c10 | 2762 | env = EXTEND_ENV (SCM_CAR (x), scm_cons (t.arg1, SCM_EOL), SCM_ENV (proc)); |
0f2d19dd JB |
2763 | #endif |
2764 | goto cdrxbegin; | |
0c32d76c | 2765 | case scm_tcs_cons_gloc: |
f3d2630a MD |
2766 | if (SCM_OBJ_CLASS_FLAGS (proc) & SCM_CLASSF_PURE_GENERIC) |
2767 | { | |
195847fa | 2768 | x = SCM_ENTITY_PROCEDURE (proc); |
f3d2630a MD |
2769 | #ifdef DEVAL |
2770 | arg2 = debug.info->a.args; | |
2771 | #else | |
2772 | arg2 = scm_cons (t.arg1, SCM_EOL); | |
2773 | #endif | |
f3d2630a MD |
2774 | goto type_dispatch; |
2775 | } | |
2776 | else if (!SCM_I_OPERATORP (proc)) | |
9b07e212 MD |
2777 | goto badfun; |
2778 | else | |
0c32d76c | 2779 | { |
195847fa MD |
2780 | arg2 = t.arg1; |
2781 | t.arg1 = proc; | |
2782 | proc = (SCM_I_ENTITYP (proc) | |
2783 | ? SCM_ENTITY_PROCEDURE (proc) | |
2784 | : SCM_OPERATOR_PROCEDURE (proc)); | |
0c32d76c | 2785 | #ifdef DEVAL |
195847fa MD |
2786 | debug.info->a.args = scm_cons (t.arg1, debug.info->a.args); |
2787 | debug.info->a.proc = proc; | |
0c32d76c | 2788 | #endif |
195847fa MD |
2789 | if (SCM_NIMP (proc)) |
2790 | goto evap2; | |
2791 | else | |
2792 | goto badfun; | |
0c32d76c | 2793 | } |
0f2d19dd JB |
2794 | case scm_tc7_subr_2: |
2795 | case scm_tc7_subr_0: | |
2796 | case scm_tc7_subr_3: | |
2797 | case scm_tc7_lsubr_2: | |
2798 | goto wrongnumargs; | |
2799 | default: | |
2800 | goto badfun; | |
2801 | } | |
2802 | } | |
cf7c17e9 | 2803 | #ifdef SCM_CAUTIOUS |
0f2d19dd JB |
2804 | if (SCM_IMP (x)) |
2805 | goto wrongnumargs; | |
680ed4a8 MD |
2806 | else if (SCM_CONSP (x)) |
2807 | { | |
2808 | if (SCM_IMP (SCM_CAR (x))) | |
6cb702da | 2809 | arg2 = SCM_EVALIM (SCM_CAR (x), env); |
680ed4a8 MD |
2810 | else |
2811 | arg2 = EVALCELLCAR (x, env); | |
2812 | } | |
3201d763 | 2813 | else if (SCM_TYP3 (x) == scm_tc3_cons_gloc) |
680ed4a8 | 2814 | { |
3201d763 DH |
2815 | scm_bits_t vcell = SCM_STRUCT_VTABLE_DATA (x) [scm_vtable_index_vcell]; |
2816 | if (vcell == 0) | |
680ed4a8 | 2817 | arg2 = SCM_CAR (x); /* struct planted in code */ |
3201d763 DH |
2818 | else |
2819 | arg2 = SCM_PACK (vcell); | |
680ed4a8 MD |
2820 | } |
2821 | else | |
2822 | goto wrongnumargs; | |
2823 | #else | |
2824 | arg2 = EVALCAR (x, env); | |
0f2d19dd JB |
2825 | #endif |
2826 | { /* have two or more arguments */ | |
6dbd0af5 MD |
2827 | #ifdef DEVAL |
2828 | debug.info->a.args = scm_cons2 (t.arg1, arg2, SCM_EOL); | |
2829 | #endif | |
0f2d19dd JB |
2830 | x = SCM_CDR (x); |
2831 | if (SCM_NULLP (x)) { | |
6dbd0af5 | 2832 | ENTER_APPLY; |
0f2d19dd | 2833 | evap2: |
6dbd0af5 MD |
2834 | switch (SCM_TYP7 (proc)) |
2835 | { /* have two arguments */ | |
2836 | case scm_tc7_subr_2: | |
2837 | case scm_tc7_subr_2o: | |
2838 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2)); | |
2839 | case scm_tc7_lsubr: | |
0f2d19dd | 2840 | #ifdef DEVAL |
6dbd0af5 MD |
2841 | RETURN (SCM_SUBRF (proc) (debug.info->a.args)) |
2842 | #else | |
2843 | RETURN (SCM_SUBRF (proc) (scm_cons2 (t.arg1, arg2, SCM_EOL))); | |
0f2d19dd | 2844 | #endif |
6dbd0af5 MD |
2845 | case scm_tc7_lsubr_2: |
2846 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, SCM_EOL)); | |
2847 | case scm_tc7_rpsubr: | |
2848 | case scm_tc7_asubr: | |
2849 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2)); | |
0717dfd8 | 2850 | case scm_tc7_smob: |
68b06924 | 2851 | if (!SCM_SMOB_APPLICABLE_P (proc)) |
0717dfd8 | 2852 | goto badfun; |
68b06924 | 2853 | RETURN (SCM_SMOB_APPLY_2 (proc, t.arg1, arg2)); |
6dbd0af5 MD |
2854 | cclon: |
2855 | case scm_tc7_cclo: | |
0f2d19dd | 2856 | #ifdef DEVAL |
195847fa MD |
2857 | RETURN (SCM_APPLY (SCM_CCLO_SUBR (proc), |
2858 | scm_cons (proc, debug.info->a.args), | |
2859 | SCM_EOL)); | |
0f2d19dd | 2860 | #else |
195847fa MD |
2861 | RETURN (SCM_APPLY (SCM_CCLO_SUBR (proc), |
2862 | scm_cons2 (proc, t.arg1, | |
2863 | scm_cons (arg2, | |
2864 | scm_eval_args (x, | |
2865 | env, | |
2866 | proc))), | |
2867 | SCM_EOL)); | |
6dbd0af5 | 2868 | #endif |
0c32d76c | 2869 | case scm_tcs_cons_gloc: |
f3d2630a MD |
2870 | if (SCM_OBJ_CLASS_FLAGS (proc) & SCM_CLASSF_PURE_GENERIC) |
2871 | { | |
195847fa | 2872 | x = SCM_ENTITY_PROCEDURE (proc); |
f3d2630a MD |
2873 | #ifdef DEVAL |
2874 | arg2 = debug.info->a.args; | |
2875 | #else | |
2876 | arg2 = scm_cons2 (t.arg1, arg2, SCM_EOL); | |
2877 | #endif | |
f3d2630a MD |
2878 | goto type_dispatch; |
2879 | } | |
2880 | else if (!SCM_I_OPERATORP (proc)) | |
9b07e212 MD |
2881 | goto badfun; |
2882 | else | |
0c32d76c | 2883 | { |
195847fa | 2884 | operatorn: |
0c32d76c | 2885 | #ifdef DEVAL |
195847fa MD |
2886 | RETURN (SCM_APPLY (SCM_I_ENTITYP (proc) |
2887 | ? SCM_ENTITY_PROCEDURE (proc) | |
2888 | : SCM_OPERATOR_PROCEDURE (proc), | |
2889 | scm_cons (proc, debug.info->a.args), | |
2890 | SCM_EOL)); | |
2891 | #else | |
2892 | RETURN (SCM_APPLY (SCM_I_ENTITYP (proc) | |
2893 | ? SCM_ENTITY_PROCEDURE (proc) | |
2894 | : SCM_OPERATOR_PROCEDURE (proc), | |
2895 | scm_cons2 (proc, t.arg1, | |
2896 | scm_cons (arg2, | |
2897 | scm_eval_args (x, | |
2898 | env, | |
2899 | proc))), | |
2900 | SCM_EOL)); | |
2901 | #endif | |
0c32d76c | 2902 | } |
6dbd0af5 MD |
2903 | case scm_tc7_subr_0: |
2904 | case scm_tc7_cxr: | |
2905 | case scm_tc7_subr_1o: | |
2906 | case scm_tc7_subr_1: | |
2907 | case scm_tc7_subr_3: | |
6dbd0af5 MD |
2908 | goto wrongnumargs; |
2909 | default: | |
2910 | goto badfun; | |
002f1a5d MD |
2911 | case scm_tc7_pws: |
2912 | proc = SCM_PROCEDURE (proc); | |
2913 | #ifdef DEVAL | |
2914 | debug.info->a.proc = proc; | |
2915 | #endif | |
2916 | if (!SCM_CLOSUREP (proc)) | |
2917 | goto evap2; | |
2918 | if (scm_badformalsp (proc, 2)) | |
2919 | goto umwrongnumargs; | |
6dbd0af5 | 2920 | case scm_tcs_closures: |
195847fa | 2921 | /* clos2: */ |
0f2d19dd | 2922 | #ifdef DEVAL |
da7f71d7 MD |
2923 | env = EXTEND_ENV (SCM_CAR (SCM_CODE (proc)), |
2924 | debug.info->a.args, | |
2925 | SCM_ENV (proc)); | |
0f2d19dd | 2926 | #else |
da7f71d7 MD |
2927 | env = EXTEND_ENV (SCM_CAR (SCM_CODE (proc)), |
2928 | scm_cons2 (t.arg1, arg2, SCM_EOL), SCM_ENV (proc)); | |
0f2d19dd | 2929 | #endif |
6dbd0af5 MD |
2930 | x = SCM_CODE (proc); |
2931 | goto cdrxbegin; | |
2932 | } | |
0f2d19dd | 2933 | } |
cf7c17e9 | 2934 | #ifdef SCM_CAUTIOUS |
680ed4a8 MD |
2935 | if (SCM_IMP (x) || SCM_NECONSP (x)) |
2936 | goto wrongnumargs; | |
2937 | #endif | |
0f2d19dd | 2938 | #ifdef DEVAL |
6dbd0af5 | 2939 | debug.info->a.args = scm_cons2 (t.arg1, arg2, |
680ed4a8 MD |
2940 | scm_deval_args (x, env, proc, |
2941 | SCM_CDRLOC (SCM_CDR (debug.info->a.args)))); | |
0f2d19dd | 2942 | #endif |
6dbd0af5 | 2943 | ENTER_APPLY; |
89efbff4 | 2944 | evap3: |
6dbd0af5 MD |
2945 | switch (SCM_TYP7 (proc)) |
2946 | { /* have 3 or more arguments */ | |
0f2d19dd | 2947 | #ifdef DEVAL |
6dbd0af5 MD |
2948 | case scm_tc7_subr_3: |
2949 | SCM_ASRTGO (SCM_NULLP (SCM_CDR (x)), wrongnumargs); | |
da7f71d7 MD |
2950 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, |
2951 | SCM_CADDR (debug.info->a.args))); | |
6dbd0af5 | 2952 | case scm_tc7_asubr: |
399dedcc MD |
2953 | #ifdef BUILTIN_RPASUBR |
2954 | t.arg1 = SCM_SUBRF(proc)(t.arg1, arg2); | |
2955 | arg2 = SCM_CDR (SCM_CDR (debug.info->a.args)); | |
da7f71d7 MD |
2956 | do |
2957 | { | |
2958 | t.arg1 = SCM_SUBRF(proc)(t.arg1, SCM_CAR (arg2)); | |
2959 | arg2 = SCM_CDR (arg2); | |
2960 | } | |
2961 | while (SCM_NIMP (arg2)); | |
399dedcc MD |
2962 | RETURN (t.arg1) |
2963 | #endif /* BUILTIN_RPASUBR */ | |
6dbd0af5 | 2964 | case scm_tc7_rpsubr: |
71d3aa6d MD |
2965 | #ifdef BUILTIN_RPASUBR |
2966 | if (SCM_FALSEP (SCM_SUBRF (proc) (t.arg1, arg2))) | |
2967 | RETURN (SCM_BOOL_F) | |
2968 | t.arg1 = SCM_CDR (SCM_CDR (debug.info->a.args)); | |
da7f71d7 MD |
2969 | do |
2970 | { | |
2971 | if (SCM_FALSEP (SCM_SUBRF (proc) (arg2, SCM_CAR (t.arg1)))) | |
2972 | RETURN (SCM_BOOL_F) | |
2973 | arg2 = SCM_CAR (t.arg1); | |
2974 | t.arg1 = SCM_CDR (t.arg1); | |
2975 | } | |
2976 | while (SCM_NIMP (t.arg1)); | |
71d3aa6d MD |
2977 | RETURN (SCM_BOOL_T) |
2978 | #else /* BUILTIN_RPASUBR */ | |
da7f71d7 MD |
2979 | RETURN (SCM_APPLY (proc, t.arg1, |
2980 | scm_acons (arg2, | |
2981 | SCM_CDR (SCM_CDR (debug.info->a.args)), | |
2982 | SCM_EOL))) | |
71d3aa6d | 2983 | #endif /* BUILTIN_RPASUBR */ |
399dedcc | 2984 | case scm_tc7_lsubr_2: |
da7f71d7 MD |
2985 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, |
2986 | SCM_CDR (SCM_CDR (debug.info->a.args)))) | |
399dedcc MD |
2987 | case scm_tc7_lsubr: |
2988 | RETURN (SCM_SUBRF (proc) (debug.info->a.args)) | |
0717dfd8 | 2989 | case scm_tc7_smob: |
68b06924 | 2990 | if (!SCM_SMOB_APPLICABLE_P (proc)) |
0717dfd8 | 2991 | goto badfun; |
68b06924 KN |
2992 | RETURN (SCM_SMOB_APPLY_3 (proc, t.arg1, arg2, |
2993 | SCM_CDDR (debug.info->a.args))); | |
6dbd0af5 MD |
2994 | case scm_tc7_cclo: |
2995 | goto cclon; | |
89efbff4 MD |
2996 | case scm_tc7_pws: |
2997 | proc = SCM_PROCEDURE (proc); | |
2998 | debug.info->a.proc = proc; | |
002f1a5d MD |
2999 | if (!SCM_CLOSUREP (proc)) |
3000 | goto evap3; | |
3001 | if (scm_badargsp (SCM_CAR (SCM_CODE (proc)), debug.info->a.args)) | |
3002 | goto umwrongnumargs; | |
6dbd0af5 | 3003 | case scm_tcs_closures: |
b7ff98dd | 3004 | SCM_SET_ARGSREADY (debug); |
e2806c10 | 3005 | env = EXTEND_ENV (SCM_CAR (SCM_CODE (proc)), |
6dbd0af5 MD |
3006 | debug.info->a.args, |
3007 | SCM_ENV (proc)); | |
3008 | x = SCM_CODE (proc); | |
3009 | goto cdrxbegin; | |
3010 | #else /* DEVAL */ | |
3011 | case scm_tc7_subr_3: | |
3012 | SCM_ASRTGO (SCM_NULLP (SCM_CDR (x)), wrongnumargs); | |
3013 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, EVALCAR (x, env))); | |
3014 | case scm_tc7_asubr: | |
399dedcc | 3015 | #ifdef BUILTIN_RPASUBR |
da7f71d7 MD |
3016 | t.arg1 = SCM_SUBRF (proc) (t.arg1, arg2); |
3017 | do | |
3018 | { | |
3019 | t.arg1 = SCM_SUBRF(proc)(t.arg1, EVALCAR(x, env)); | |
3020 | x = SCM_CDR(x); | |
3021 | } | |
3022 | while (SCM_NIMP (x)); | |
399dedcc MD |
3023 | RETURN (t.arg1) |
3024 | #endif /* BUILTIN_RPASUBR */ | |
6dbd0af5 | 3025 | case scm_tc7_rpsubr: |
71d3aa6d MD |
3026 | #ifdef BUILTIN_RPASUBR |
3027 | if (SCM_FALSEP (SCM_SUBRF (proc) (t.arg1, arg2))) | |
3028 | RETURN (SCM_BOOL_F) | |
da7f71d7 MD |
3029 | do |
3030 | { | |
3031 | t.arg1 = EVALCAR (x, env); | |
3032 | if (SCM_FALSEP (SCM_SUBRF (proc) (arg2, t.arg1))) | |
3033 | RETURN (SCM_BOOL_F) | |
3034 | arg2 = t.arg1; | |
3035 | x = SCM_CDR (x); | |
3036 | } | |
3037 | while (SCM_NIMP (x)); | |
71d3aa6d MD |
3038 | RETURN (SCM_BOOL_T) |
3039 | #else /* BUILTIN_RPASUBR */ | |
da7f71d7 | 3040 | RETURN (SCM_APPLY (proc, t.arg1, |
680ed4a8 MD |
3041 | scm_acons (arg2, |
3042 | scm_eval_args (x, env, proc), | |
3043 | SCM_EOL))); | |
71d3aa6d | 3044 | #endif /* BUILTIN_RPASUBR */ |
6dbd0af5 | 3045 | case scm_tc7_lsubr_2: |
680ed4a8 | 3046 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, scm_eval_args (x, env, proc))); |
6dbd0af5 | 3047 | case scm_tc7_lsubr: |
680ed4a8 MD |
3048 | RETURN (SCM_SUBRF (proc) (scm_cons2 (t.arg1, |
3049 | arg2, | |
3050 | scm_eval_args (x, env, proc)))); | |
0717dfd8 | 3051 | case scm_tc7_smob: |
68b06924 | 3052 | if (!SCM_SMOB_APPLICABLE_P (proc)) |
0717dfd8 | 3053 | goto badfun; |
68b06924 KN |
3054 | RETURN (SCM_SMOB_APPLY_3 (proc, t.arg1, arg2, |
3055 | scm_eval_args (x, env, proc))); | |
6dbd0af5 MD |
3056 | case scm_tc7_cclo: |
3057 | goto cclon; | |
89efbff4 MD |
3058 | case scm_tc7_pws: |
3059 | proc = SCM_PROCEDURE (proc); | |
002f1a5d MD |
3060 | if (!SCM_CLOSUREP (proc)) |
3061 | goto evap3; | |
3062 | { | |
3063 | SCM formals = SCM_CAR (SCM_CODE (proc)); | |
3064 | if (SCM_NULLP (formals) | |
3065 | || (SCM_CONSP (formals) | |
3066 | && (SCM_NULLP (SCM_CDR (formals)) | |
3067 | || (SCM_CONSP (SCM_CDR (formals)) | |
3068 | && scm_badargsp (SCM_CDDR (formals), x))))) | |
3069 | goto umwrongnumargs; | |
3070 | } | |
6dbd0af5 MD |
3071 | case scm_tcs_closures: |
3072 | #ifdef DEVAL | |
b7ff98dd | 3073 | SCM_SET_ARGSREADY (debug); |
6dbd0af5 | 3074 | #endif |
e2806c10 | 3075 | env = EXTEND_ENV (SCM_CAR (SCM_CODE (proc)), |
680ed4a8 MD |
3076 | scm_cons2 (t.arg1, |
3077 | arg2, | |
3078 | scm_eval_args (x, env, proc)), | |
6dbd0af5 MD |
3079 | SCM_ENV (proc)); |
3080 | x = SCM_CODE (proc); | |
3081 | goto cdrxbegin; | |
0f2d19dd | 3082 | #endif /* DEVAL */ |
0c32d76c | 3083 | case scm_tcs_cons_gloc: |
f3d2630a MD |
3084 | if (SCM_OBJ_CLASS_FLAGS (proc) & SCM_CLASSF_PURE_GENERIC) |
3085 | { | |
3086 | #ifdef DEVAL | |
3087 | arg2 = debug.info->a.args; | |
3088 | #else | |
3089 | arg2 = scm_cons2 (t.arg1, arg2, scm_eval_args (x, env, proc)); | |
3090 | #endif | |
195847fa | 3091 | x = SCM_ENTITY_PROCEDURE (proc); |
f3d2630a MD |
3092 | goto type_dispatch; |
3093 | } | |
3094 | else if (!SCM_I_OPERATORP (proc)) | |
9b07e212 MD |
3095 | goto badfun; |
3096 | else | |
195847fa | 3097 | goto operatorn; |
6dbd0af5 MD |
3098 | case scm_tc7_subr_2: |
3099 | case scm_tc7_subr_1o: | |
3100 | case scm_tc7_subr_2o: | |
3101 | case scm_tc7_subr_0: | |
3102 | case scm_tc7_cxr: | |
3103 | case scm_tc7_subr_1: | |
6dbd0af5 MD |
3104 | goto wrongnumargs; |
3105 | default: | |
3106 | goto badfun; | |
3107 | } | |
0f2d19dd JB |
3108 | } |
3109 | #ifdef DEVAL | |
6dbd0af5 | 3110 | exit: |
b6d75948 | 3111 | if (CHECK_EXIT && SCM_TRAPS_P) |
b7ff98dd | 3112 | if (SCM_EXIT_FRAME_P || (SCM_TRACE_P && SCM_TRACED_FRAME_P (debug))) |
6dbd0af5 | 3113 | { |
b7ff98dd MD |
3114 | SCM_CLEAR_TRACED_FRAME (debug); |
3115 | if (SCM_CHEAPTRAPS_P) | |
c0ab1b8d | 3116 | t.arg1 = scm_make_debugobj (&debug); |
6dbd0af5 MD |
3117 | else |
3118 | { | |
5f144b10 GH |
3119 | int first; |
3120 | SCM val = scm_make_continuation (&first); | |
3121 | ||
3122 | if (first) | |
3123 | t.arg1 = val; | |
3124 | else | |
6dbd0af5 | 3125 | { |
5f144b10 | 3126 | proc = val; |
6dbd0af5 MD |
3127 | goto ret; |
3128 | } | |
3129 | } | |
2f0d1375 | 3130 | scm_ithrow (scm_sym_exit_frame, scm_cons2 (t.arg1, proc, SCM_EOL), 0); |
6dbd0af5 MD |
3131 | } |
3132 | ret: | |
1646d37b | 3133 | scm_last_debug_frame = debug.prev; |
0f2d19dd JB |
3134 | return proc; |
3135 | #endif | |
3136 | } | |
3137 | ||
6dbd0af5 MD |
3138 | |
3139 | /* SECTION: This code is compiled once. | |
3140 | */ | |
3141 | ||
0f2d19dd JB |
3142 | #ifndef DEVAL |
3143 | ||
82a2622a | 3144 | /* This code processes the arguments to apply: |
b145c172 JB |
3145 | |
3146 | (apply PROC ARG1 ... ARGS) | |
3147 | ||
82a2622a JB |
3148 | Given a list (ARG1 ... ARGS), this function conses the ARG1 |
3149 | ... arguments onto the front of ARGS, and returns the resulting | |
3150 | list. Note that ARGS is a list; thus, the argument to this | |
3151 | function is a list whose last element is a list. | |
3152 | ||
3153 | Apply calls this function, and applies PROC to the elements of the | |
b145c172 JB |
3154 | result. apply:nconc2last takes care of building the list of |
3155 | arguments, given (ARG1 ... ARGS). | |
3156 | ||
82a2622a JB |
3157 | Rather than do new consing, apply:nconc2last destroys its argument. |
3158 | On that topic, this code came into my care with the following | |
3159 | beautifully cryptic comment on that topic: "This will only screw | |
3160 | you if you do (scm_apply scm_apply '( ... ))" If you know what | |
3161 | they're referring to, send me a patch to this comment. */ | |
b145c172 | 3162 | |
3b3b36dd | 3163 | SCM_DEFINE (scm_nconc2last, "apply:nconc2last", 1, 0, 0, |
1bbd0b84 | 3164 | (SCM lst), |
b380b885 | 3165 | "") |
1bbd0b84 | 3166 | #define FUNC_NAME s_scm_nconc2last |
0f2d19dd JB |
3167 | { |
3168 | SCM *lloc; | |
c1bfcf60 | 3169 | SCM_VALIDATE_NONEMPTYLIST (1,lst); |
0f2d19dd JB |
3170 | lloc = &lst; |
3171 | while (SCM_NNULLP (SCM_CDR (*lloc))) | |
a23afe53 | 3172 | lloc = SCM_CDRLOC (*lloc); |
1bbd0b84 | 3173 | SCM_ASSERT (scm_ilength (SCM_CAR (*lloc)) >= 0, lst, SCM_ARG1, FUNC_NAME); |
0f2d19dd JB |
3174 | *lloc = SCM_CAR (*lloc); |
3175 | return lst; | |
3176 | } | |
1bbd0b84 | 3177 | #undef FUNC_NAME |
0f2d19dd JB |
3178 | |
3179 | #endif /* !DEVAL */ | |
3180 | ||
6dbd0af5 MD |
3181 | |
3182 | /* SECTION: When DEVAL is defined this code yields scm_dapply. | |
3183 | * It is compiled twice. | |
3184 | */ | |
3185 | ||
0f2d19dd | 3186 | #if 0 |
1cc91f1b | 3187 | |
0f2d19dd | 3188 | SCM |
6e8d25a6 | 3189 | scm_apply (SCM proc, SCM arg1, SCM args) |
0f2d19dd JB |
3190 | {} |
3191 | #endif | |
3192 | ||
3193 | #if 0 | |
1cc91f1b | 3194 | |
0f2d19dd | 3195 | SCM |
6e8d25a6 GB |
3196 | scm_dapply (SCM proc, SCM arg1, SCM args) |
3197 | { /* empty */ } | |
0f2d19dd JB |
3198 | #endif |
3199 | ||
1cc91f1b | 3200 | |
82a2622a JB |
3201 | /* Apply a function to a list of arguments. |
3202 | ||
3203 | This function is exported to the Scheme level as taking two | |
3204 | required arguments and a tail argument, as if it were: | |
3205 | (lambda (proc arg1 . args) ...) | |
3206 | Thus, if you just have a list of arguments to pass to a procedure, | |
3207 | pass the list as ARG1, and '() for ARGS. If you have some fixed | |
3208 | args, pass the first as ARG1, then cons any remaining fixed args | |
3209 | onto the front of your argument list, and pass that as ARGS. */ | |
3210 | ||
0f2d19dd | 3211 | SCM |
1bbd0b84 | 3212 | SCM_APPLY (SCM proc, SCM arg1, SCM args) |
0f2d19dd JB |
3213 | { |
3214 | #ifdef DEBUG_EXTENSIONS | |
3215 | #ifdef DEVAL | |
6dbd0af5 | 3216 | scm_debug_frame debug; |
c0ab1b8d | 3217 | scm_debug_info debug_vect_body; |
1646d37b | 3218 | debug.prev = scm_last_debug_frame; |
b7ff98dd | 3219 | debug.status = SCM_APPLYFRAME; |
c0ab1b8d | 3220 | debug.vect = &debug_vect_body; |
6dbd0af5 MD |
3221 | debug.vect[0].a.proc = proc; |
3222 | debug.vect[0].a.args = SCM_EOL; | |
1646d37b | 3223 | scm_last_debug_frame = &debug; |
0f2d19dd | 3224 | #else |
b7ff98dd | 3225 | if (SCM_DEBUGGINGP) |
0f2d19dd JB |
3226 | return scm_dapply (proc, arg1, args); |
3227 | #endif | |
3228 | #endif | |
3229 | ||
3230 | SCM_ASRTGO (SCM_NIMP (proc), badproc); | |
82a2622a JB |
3231 | |
3232 | /* If ARGS is the empty list, then we're calling apply with only two | |
3233 | arguments --- ARG1 is the list of arguments for PROC. Whatever | |
3234 | the case, futz with things so that ARG1 is the first argument to | |
3235 | give to PROC (or SCM_UNDEFINED if no args), and ARGS contains the | |
30000774 JB |
3236 | rest. |
3237 | ||
3238 | Setting the debug apply frame args this way is pretty messy. | |
3239 | Perhaps we should store arg1 and args directly in the frame as | |
3240 | received, and let scm_frame_arguments unpack them, because that's | |
3241 | a relatively rare operation. This works for now; if the Guile | |
3242 | developer archives are still around, see Mikael's post of | |
3243 | 11-Apr-97. */ | |
0f2d19dd JB |
3244 | if (SCM_NULLP (args)) |
3245 | { | |
3246 | if (SCM_NULLP (arg1)) | |
30000774 JB |
3247 | { |
3248 | arg1 = SCM_UNDEFINED; | |
3249 | #ifdef DEVAL | |
3250 | debug.vect[0].a.args = SCM_EOL; | |
3251 | #endif | |
3252 | } | |
0f2d19dd JB |
3253 | else |
3254 | { | |
30000774 JB |
3255 | #ifdef DEVAL |
3256 | debug.vect[0].a.args = arg1; | |
3257 | #endif | |
0f2d19dd JB |
3258 | args = SCM_CDR (arg1); |
3259 | arg1 = SCM_CAR (arg1); | |
3260 | } | |
3261 | } | |
3262 | else | |
3263 | { | |
0f2d19dd | 3264 | args = scm_nconc2last (args); |
30000774 JB |
3265 | #ifdef DEVAL |
3266 | debug.vect[0].a.args = scm_cons (arg1, args); | |
3267 | #endif | |
0f2d19dd | 3268 | } |
0f2d19dd | 3269 | #ifdef DEVAL |
b6d75948 | 3270 | if (SCM_ENTER_FRAME_P && SCM_TRAPS_P) |
6dbd0af5 MD |
3271 | { |
3272 | SCM tmp; | |
b7ff98dd | 3273 | if (SCM_CHEAPTRAPS_P) |
c0ab1b8d | 3274 | tmp = scm_make_debugobj (&debug); |
6dbd0af5 MD |
3275 | else |
3276 | { | |
5f144b10 GH |
3277 | int first; |
3278 | ||
3279 | tmp = scm_make_continuation (&first); | |
3280 | if (!first) | |
6dbd0af5 MD |
3281 | goto entap; |
3282 | } | |
2f0d1375 | 3283 | scm_ithrow (scm_sym_enter_frame, scm_cons (tmp, SCM_EOL), 0); |
6dbd0af5 MD |
3284 | } |
3285 | entap: | |
3286 | ENTER_APPLY; | |
3287 | #endif | |
6dbd0af5 | 3288 | tail: |
0f2d19dd JB |
3289 | switch (SCM_TYP7 (proc)) |
3290 | { | |
3291 | case scm_tc7_subr_2o: | |
3292 | args = SCM_NULLP (args) ? SCM_UNDEFINED : SCM_CAR (args); | |
3293 | RETURN (SCM_SUBRF (proc) (arg1, args)) | |
3294 | case scm_tc7_subr_2: | |
269861c7 MD |
3295 | SCM_ASRTGO (SCM_NNULLP (args) && SCM_NULLP (SCM_CDR (args)), |
3296 | wrongnumargs); | |
0f2d19dd JB |
3297 | args = SCM_CAR (args); |
3298 | RETURN (SCM_SUBRF (proc) (arg1, args)) | |
3299 | case scm_tc7_subr_0: | |
3300 | SCM_ASRTGO (SCM_UNBNDP (arg1), wrongnumargs); | |
3301 | RETURN (SCM_SUBRF (proc) ()) | |
3302 | case scm_tc7_subr_1: | |
3303 | case scm_tc7_subr_1o: | |
3304 | SCM_ASRTGO (SCM_NULLP (args), wrongnumargs); | |
3305 | RETURN (SCM_SUBRF (proc) (arg1)) | |
3306 | case scm_tc7_cxr: | |
3307 | SCM_ASRTGO (SCM_NULLP (args), wrongnumargs); | |
0f2d19dd JB |
3308 | if (SCM_SUBRF (proc)) |
3309 | { | |
6dbd0af5 MD |
3310 | if (SCM_INUMP (arg1)) |
3311 | { | |
f8de44c1 | 3312 | RETURN (scm_make_real (SCM_DSUBRF (proc) ((double) SCM_INUM (arg1)))); |
6dbd0af5 | 3313 | } |
0f2d19dd | 3314 | SCM_ASRTGO (SCM_NIMP (arg1), floerr); |
6dbd0af5 MD |
3315 | if (SCM_REALP (arg1)) |
3316 | { | |
eb42e2f0 | 3317 | RETURN (scm_make_real (SCM_DSUBRF (proc) (SCM_REAL_VALUE (arg1)))); |
6dbd0af5 | 3318 | } |
0f2d19dd | 3319 | #ifdef SCM_BIGDIG |
26d5b9b4 | 3320 | if (SCM_BIGP (arg1)) |
f8de44c1 | 3321 | RETURN (scm_make_real (SCM_DSUBRF (proc) (scm_big2dbl (arg1)))) |
0f2d19dd JB |
3322 | #endif |
3323 | floerr: | |
9de33deb | 3324 | SCM_WTA_DISPATCH_1 (*SCM_SUBR_GENERIC (proc), arg1, |
3db4adfc | 3325 | SCM_ARG1, SCM_SYMBOL_CHARS (SCM_SNAME (proc))); |
0f2d19dd | 3326 | } |
3201d763 | 3327 | proc = SCM_SNAME (proc); |
0f2d19dd | 3328 | { |
b5c2579a | 3329 | char *chrs = SCM_SYMBOL_CHARS (proc) + SCM_SYMBOL_LENGTH (proc) - 1; |
0f2d19dd JB |
3330 | while ('c' != *--chrs) |
3331 | { | |
0c95b57d | 3332 | SCM_ASSERT (SCM_CONSP (arg1), |
3db4adfc | 3333 | arg1, SCM_ARG1, SCM_SYMBOL_CHARS (proc)); |
0f2d19dd JB |
3334 | arg1 = ('a' == *chrs) ? SCM_CAR (arg1) : SCM_CDR (arg1); |
3335 | } | |
3336 | RETURN (arg1) | |
3337 | } | |
3338 | case scm_tc7_subr_3: | |
3339 | RETURN (SCM_SUBRF (proc) (arg1, SCM_CAR (args), SCM_CAR (SCM_CDR (args)))) | |
3340 | case scm_tc7_lsubr: | |
3341 | #ifdef DEVAL | |
6dbd0af5 | 3342 | RETURN (SCM_SUBRF (proc) (SCM_UNBNDP (arg1) ? SCM_EOL : debug.vect[0].a.args)) |
0f2d19dd JB |
3343 | #else |
3344 | RETURN (SCM_SUBRF (proc) (SCM_UNBNDP (arg1) ? SCM_EOL : scm_cons (arg1, args))) | |
3345 | #endif | |
3346 | case scm_tc7_lsubr_2: | |
0c95b57d | 3347 | SCM_ASRTGO (SCM_CONSP (args), wrongnumargs); |
0f2d19dd JB |
3348 | RETURN (SCM_SUBRF (proc) (arg1, SCM_CAR (args), SCM_CDR (args))) |
3349 | case scm_tc7_asubr: | |
3350 | if (SCM_NULLP (args)) | |
3351 | RETURN (SCM_SUBRF (proc) (arg1, SCM_UNDEFINED)) | |
3352 | while (SCM_NIMP (args)) | |
3353 | { | |
3354 | SCM_ASSERT (SCM_CONSP (args), args, SCM_ARG2, "apply"); | |
3355 | arg1 = SCM_SUBRF (proc) (arg1, SCM_CAR (args)); | |
3356 | args = SCM_CDR (args); | |
3357 | } | |
3358 | RETURN (arg1); | |
3359 | case scm_tc7_rpsubr: | |
3360 | if (SCM_NULLP (args)) | |
3361 | RETURN (SCM_BOOL_T); | |
3362 | while (SCM_NIMP (args)) | |
3363 | { | |
3364 | SCM_ASSERT (SCM_CONSP (args), args, SCM_ARG2, "apply"); | |
3365 | if (SCM_FALSEP (SCM_SUBRF (proc) (arg1, SCM_CAR (args)))) | |
3366 | RETURN (SCM_BOOL_F); | |
3367 | arg1 = SCM_CAR (args); | |
3368 | args = SCM_CDR (args); | |
3369 | } | |
3370 | RETURN (SCM_BOOL_T); | |
3371 | case scm_tcs_closures: | |
3372 | #ifdef DEVAL | |
6dbd0af5 | 3373 | arg1 = (SCM_UNBNDP (arg1) ? SCM_EOL : debug.vect[0].a.args); |
0f2d19dd JB |
3374 | #else |
3375 | arg1 = (SCM_UNBNDP (arg1) ? SCM_EOL : scm_cons (arg1, args)); | |
3376 | #endif | |
cf7c17e9 | 3377 | #ifndef SCM_RECKLESS |
0f2d19dd JB |
3378 | if (scm_badargsp (SCM_CAR (SCM_CODE (proc)), arg1)) |
3379 | goto wrongnumargs; | |
3380 | #endif | |
1609038c MD |
3381 | |
3382 | /* Copy argument list */ | |
3383 | if (SCM_IMP (arg1)) | |
3384 | args = arg1; | |
3385 | else | |
3386 | { | |
3387 | SCM tl = args = scm_cons (SCM_CAR (arg1), SCM_UNSPECIFIED); | |
cabe682c | 3388 | while (arg1 = SCM_CDR (arg1), SCM_CONSP (arg1)) |
1609038c MD |
3389 | { |
3390 | SCM_SETCDR (tl, scm_cons (SCM_CAR (arg1), | |
3391 | SCM_UNSPECIFIED)); | |
3392 | tl = SCM_CDR (tl); | |
3393 | } | |
3394 | SCM_SETCDR (tl, arg1); | |
3395 | } | |
3396 | ||
3397 | args = EXTEND_ENV (SCM_CAR (SCM_CODE (proc)), args, SCM_ENV (proc)); | |
2ddb0920 | 3398 | proc = SCM_CDR (SCM_CODE (proc)); |
e791c18f MD |
3399 | again: |
3400 | arg1 = proc; | |
3401 | while (SCM_NNULLP (arg1 = SCM_CDR (arg1))) | |
2ddb0920 MD |
3402 | { |
3403 | if (SCM_IMP (SCM_CAR (proc))) | |
3404 | { | |
3405 | if (SCM_ISYMP (SCM_CAR (proc))) | |
3406 | { | |
3407 | proc = scm_m_expand_body (proc, args); | |
e791c18f | 3408 | goto again; |
2ddb0920 | 3409 | } |
2ddb0920 MD |
3410 | } |
3411 | else | |
e791c18f MD |
3412 | SCM_CEVAL (SCM_CAR (proc), args); |
3413 | proc = arg1; | |
2ddb0920 | 3414 | } |
e791c18f | 3415 | RETURN (EVALCAR (proc, args)); |
0717dfd8 | 3416 | case scm_tc7_smob: |
68b06924 | 3417 | if (!SCM_SMOB_APPLICABLE_P (proc)) |
0717dfd8 | 3418 | goto badproc; |
afa38f6e | 3419 | if (SCM_UNBNDP (arg1)) |
68b06924 | 3420 | RETURN (SCM_SMOB_APPLY_0 (proc)) |
afa38f6e | 3421 | else if (SCM_NULLP (args)) |
68b06924 | 3422 | RETURN (SCM_SMOB_APPLY_1 (proc, arg1)) |
0717dfd8 | 3423 | else if (SCM_NULLP (SCM_CDR (args))) |
68b06924 | 3424 | RETURN (SCM_SMOB_APPLY_2 (proc, arg1, SCM_CAR (args))) |
0717dfd8 | 3425 | else |
68b06924 | 3426 | RETURN (SCM_SMOB_APPLY_3 (proc, arg1, SCM_CAR (args), SCM_CDR (args))); |
0f2d19dd JB |
3427 | case scm_tc7_cclo: |
3428 | #ifdef DEVAL | |
6dbd0af5 MD |
3429 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : debug.vect[0].a.args); |
3430 | arg1 = proc; | |
3431 | proc = SCM_CCLO_SUBR (proc); | |
3432 | debug.vect[0].a.proc = proc; | |
3433 | debug.vect[0].a.args = scm_cons (arg1, args); | |
0f2d19dd JB |
3434 | #else |
3435 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : scm_cons (arg1, args)); | |
0f2d19dd JB |
3436 | arg1 = proc; |
3437 | proc = SCM_CCLO_SUBR (proc); | |
6dbd0af5 | 3438 | #endif |
0f2d19dd | 3439 | goto tail; |
89efbff4 MD |
3440 | case scm_tc7_pws: |
3441 | proc = SCM_PROCEDURE (proc); | |
3442 | #ifdef DEVAL | |
3443 | debug.vect[0].a.proc = proc; | |
3444 | #endif | |
3445 | goto tail; | |
0c32d76c | 3446 | case scm_tcs_cons_gloc: |
f3d2630a MD |
3447 | if (SCM_OBJ_CLASS_FLAGS (proc) & SCM_CLASSF_PURE_GENERIC) |
3448 | { | |
3449 | #ifdef DEVAL | |
3450 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : debug.vect[0].a.args); | |
3451 | #else | |
3452 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : scm_cons (arg1, args)); | |
3453 | #endif | |
195847fa | 3454 | RETURN (scm_apply_generic (proc, args)); |
f3d2630a MD |
3455 | } |
3456 | else if (!SCM_I_OPERATORP (proc)) | |
9b07e212 MD |
3457 | goto badproc; |
3458 | else | |
da7f71d7 MD |
3459 | { |
3460 | #ifdef DEVAL | |
3461 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : debug.vect[0].a.args); | |
3462 | #else | |
3463 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : scm_cons (arg1, args)); | |
3464 | #endif | |
3465 | arg1 = proc; | |
195847fa MD |
3466 | proc = (SCM_I_ENTITYP (proc) |
3467 | ? SCM_ENTITY_PROCEDURE (proc) | |
3468 | : SCM_OPERATOR_PROCEDURE (proc)); | |
da7f71d7 MD |
3469 | #ifdef DEVAL |
3470 | debug.vect[0].a.proc = proc; | |
3471 | debug.vect[0].a.args = scm_cons (arg1, args); | |
3472 | #endif | |
195847fa MD |
3473 | if (SCM_NIMP (proc)) |
3474 | goto tail; | |
3475 | else | |
3476 | goto badproc; | |
da7f71d7 | 3477 | } |
0f2d19dd | 3478 | wrongnumargs: |
f5bf2977 | 3479 | scm_wrong_num_args (proc); |
0f2d19dd JB |
3480 | default: |
3481 | badproc: | |
3482 | scm_wta (proc, (char *) SCM_ARG1, "apply"); | |
3483 | RETURN (arg1); | |
3484 | } | |
3485 | #ifdef DEVAL | |
6dbd0af5 | 3486 | exit: |
b6d75948 | 3487 | if (CHECK_EXIT && SCM_TRAPS_P) |
b7ff98dd | 3488 | if (SCM_EXIT_FRAME_P || (SCM_TRACE_P && SCM_TRACED_FRAME_P (debug))) |
6dbd0af5 | 3489 | { |
b7ff98dd MD |
3490 | SCM_CLEAR_TRACED_FRAME (debug); |
3491 | if (SCM_CHEAPTRAPS_P) | |
c0ab1b8d | 3492 | arg1 = scm_make_debugobj (&debug); |
6dbd0af5 MD |
3493 | else |
3494 | { | |
5f144b10 GH |
3495 | int first; |
3496 | SCM val = scm_make_continuation (&first); | |
3497 | ||
3498 | if (first) | |
3499 | arg1 = val; | |
3500 | else | |
6dbd0af5 | 3501 | { |
5f144b10 | 3502 | proc = val; |
6dbd0af5 MD |
3503 | goto ret; |
3504 | } | |
3505 | } | |
2f0d1375 | 3506 | scm_ithrow (scm_sym_exit_frame, scm_cons2 (arg1, proc, SCM_EOL), 0); |
6dbd0af5 MD |
3507 | } |
3508 | ret: | |
1646d37b | 3509 | scm_last_debug_frame = debug.prev; |
0f2d19dd JB |
3510 | return proc; |
3511 | #endif | |
3512 | } | |
3513 | ||
6dbd0af5 MD |
3514 | |
3515 | /* SECTION: The rest of this file is only read once. | |
3516 | */ | |
3517 | ||
0f2d19dd JB |
3518 | #ifndef DEVAL |
3519 | ||
d9c393f5 JB |
3520 | /* Typechecking for multi-argument MAP and FOR-EACH. |
3521 | ||
47c3f06d | 3522 | Verify that each element of the vector ARGV, except for the first, |
d9c393f5 | 3523 | is a proper list whose length is LEN. Attribute errors to WHO, |
47c3f06d | 3524 | and claim that the i'th element of ARGV is WHO's i+2'th argument. */ |
d9c393f5 | 3525 | static inline void |
47c3f06d MD |
3526 | check_map_args (SCM argv, |
3527 | long len, | |
3528 | SCM gf, | |
3529 | SCM proc, | |
3530 | SCM args, | |
3531 | const char *who) | |
d9c393f5 | 3532 | { |
47c3f06d | 3533 | SCM *ve = SCM_VELTS (argv); |
d9c393f5 JB |
3534 | int i; |
3535 | ||
b5c2579a | 3536 | for (i = SCM_VECTOR_LENGTH (argv) - 1; i >= 1; i--) |
d9c393f5 JB |
3537 | { |
3538 | int elt_len = scm_ilength (ve[i]); | |
3539 | ||
3540 | if (elt_len < 0) | |
47c3f06d MD |
3541 | { |
3542 | if (gf) | |
3543 | scm_apply_generic (gf, scm_cons (proc, args)); | |
3544 | else | |
3545 | scm_wrong_type_arg (who, i + 2, ve[i]); | |
3546 | } | |
d9c393f5 JB |
3547 | |
3548 | if (elt_len != len) | |
3549 | scm_out_of_range (who, ve[i]); | |
3550 | } | |
3551 | ||
47c3f06d | 3552 | scm_remember (&argv); |
d9c393f5 JB |
3553 | } |
3554 | ||
3555 | ||
47c3f06d | 3556 | SCM_GPROC (s_map, "map", 2, 0, 1, scm_map, g_map); |
1cc91f1b | 3557 | |
368bf056 MD |
3558 | /* Note: Currently, scm_map applies PROC to the argument list(s) |
3559 | sequentially, starting with the first element(s). This is used in | |
8878f040 | 3560 | evalext.c where the Scheme procedure `map-in-order', which guarantees |
368bf056 | 3561 | sequential behaviour, is implemented using scm_map. If the |
8878f040 | 3562 | behaviour changes, we need to update `map-in-order'. |
368bf056 MD |
3563 | */ |
3564 | ||
0f2d19dd | 3565 | SCM |
1bbd0b84 | 3566 | scm_map (SCM proc, SCM arg1, SCM args) |
af45e3b0 | 3567 | #define FUNC_NAME s_map |
0f2d19dd | 3568 | { |
d9c393f5 | 3569 | long i, len; |
0f2d19dd JB |
3570 | SCM res = SCM_EOL; |
3571 | SCM *pres = &res; | |
3572 | SCM *ve = &args; /* Keep args from being optimized away. */ | |
3573 | ||
d9c393f5 | 3574 | len = scm_ilength (arg1); |
47c3f06d MD |
3575 | SCM_GASSERTn (len >= 0, |
3576 | g_map, scm_cons2 (proc, arg1, args), SCM_ARG2, s_map); | |
af45e3b0 | 3577 | SCM_VALIDATE_REST_ARGUMENT (args); |
0f2d19dd JB |
3578 | if (SCM_NULLP (args)) |
3579 | { | |
3580 | while (SCM_NIMP (arg1)) | |
3581 | { | |
47c3f06d MD |
3582 | *pres = scm_cons (scm_apply (proc, SCM_CAR (arg1), scm_listofnull), |
3583 | SCM_EOL); | |
a23afe53 | 3584 | pres = SCM_CDRLOC (*pres); |
0f2d19dd JB |
3585 | arg1 = SCM_CDR (arg1); |
3586 | } | |
3587 | return res; | |
3588 | } | |
47c3f06d | 3589 | args = scm_vector (arg1 = scm_cons (arg1, args)); |
0f2d19dd | 3590 | ve = SCM_VELTS (args); |
cf7c17e9 | 3591 | #ifndef SCM_RECKLESS |
47c3f06d | 3592 | check_map_args (args, len, g_map, proc, arg1, s_map); |
0f2d19dd JB |
3593 | #endif |
3594 | while (1) | |
3595 | { | |
3596 | arg1 = SCM_EOL; | |
b5c2579a | 3597 | for (i = SCM_VECTOR_LENGTH (args) - 1; i >= 0; i--) |
0f2d19dd | 3598 | { |
d9c393f5 JB |
3599 | if (SCM_IMP (ve[i])) |
3600 | return res; | |
0f2d19dd JB |
3601 | arg1 = scm_cons (SCM_CAR (ve[i]), arg1); |
3602 | ve[i] = SCM_CDR (ve[i]); | |
3603 | } | |
3604 | *pres = scm_cons (scm_apply (proc, arg1, SCM_EOL), SCM_EOL); | |
a23afe53 | 3605 | pres = SCM_CDRLOC (*pres); |
0f2d19dd JB |
3606 | } |
3607 | } | |
af45e3b0 | 3608 | #undef FUNC_NAME |
0f2d19dd JB |
3609 | |
3610 | ||
47c3f06d | 3611 | SCM_GPROC (s_for_each, "for-each", 2, 0, 1, scm_for_each, g_for_each); |
1cc91f1b | 3612 | |
0f2d19dd | 3613 | SCM |
1bbd0b84 | 3614 | scm_for_each (SCM proc, SCM arg1, SCM args) |
af45e3b0 | 3615 | #define FUNC_NAME s_for_each |
0f2d19dd JB |
3616 | { |
3617 | SCM *ve = &args; /* Keep args from being optimized away. */ | |
d9c393f5 | 3618 | long i, len; |
d9c393f5 | 3619 | len = scm_ilength (arg1); |
47c3f06d MD |
3620 | SCM_GASSERTn (len >= 0, g_for_each, scm_cons2 (proc, arg1, args), |
3621 | SCM_ARG2, s_for_each); | |
af45e3b0 | 3622 | SCM_VALIDATE_REST_ARGUMENT (args); |
0f2d19dd JB |
3623 | if SCM_NULLP (args) |
3624 | { | |
3625 | while SCM_NIMP (arg1) | |
3626 | { | |
0f2d19dd JB |
3627 | scm_apply (proc, SCM_CAR (arg1), scm_listofnull); |
3628 | arg1 = SCM_CDR (arg1); | |
3629 | } | |
3630 | return SCM_UNSPECIFIED; | |
3631 | } | |
47c3f06d | 3632 | args = scm_vector (arg1 = scm_cons (arg1, args)); |
0f2d19dd | 3633 | ve = SCM_VELTS (args); |
cf7c17e9 | 3634 | #ifndef SCM_RECKLESS |
47c3f06d | 3635 | check_map_args (args, len, g_for_each, proc, arg1, s_for_each); |
0f2d19dd JB |
3636 | #endif |
3637 | while (1) | |
3638 | { | |
3639 | arg1 = SCM_EOL; | |
b5c2579a | 3640 | for (i = SCM_VECTOR_LENGTH (args) - 1; i >= 0; i--) |
0f2d19dd JB |
3641 | { |
3642 | if SCM_IMP | |
3643 | (ve[i]) return SCM_UNSPECIFIED; | |
3644 | arg1 = scm_cons (SCM_CAR (ve[i]), arg1); | |
3645 | ve[i] = SCM_CDR (ve[i]); | |
3646 | } | |
3647 | scm_apply (proc, arg1, SCM_EOL); | |
3648 | } | |
3649 | } | |
af45e3b0 | 3650 | #undef FUNC_NAME |
0f2d19dd | 3651 | |
1cc91f1b | 3652 | |
0f2d19dd | 3653 | SCM |
6e8d25a6 | 3654 | scm_closure (SCM code, SCM env) |
0f2d19dd JB |
3655 | { |
3656 | register SCM z; | |
3657 | SCM_NEWCELL (z); | |
3658 | SCM_SETCODE (z, code); | |
a23afe53 | 3659 | SCM_SETENV (z, env); |
0f2d19dd JB |
3660 | return z; |
3661 | } | |
3662 | ||
3663 | ||
e841c3e0 | 3664 | scm_bits_t scm_tc16_promise; |
1cc91f1b | 3665 | |
0f2d19dd | 3666 | SCM |
6e8d25a6 | 3667 | scm_makprom (SCM code) |
0f2d19dd | 3668 | { |
cf498326 | 3669 | SCM_RETURN_NEWSMOB (scm_tc16_promise, SCM_UNPACK (code)); |
0f2d19dd JB |
3670 | } |
3671 | ||
3672 | ||
1cc91f1b | 3673 | |
0f2d19dd | 3674 | static int |
e841c3e0 | 3675 | promise_print (SCM exp, SCM port, scm_print_state *pstate) |
0f2d19dd | 3676 | { |
19402679 | 3677 | int writingp = SCM_WRITINGP (pstate); |
b7f3516f | 3678 | scm_puts ("#<promise ", port); |
19402679 MD |
3679 | SCM_SET_WRITINGP (pstate, 1); |
3680 | scm_iprin1 (SCM_CDR (exp), port, pstate); | |
3681 | SCM_SET_WRITINGP (pstate, writingp); | |
b7f3516f | 3682 | scm_putc ('>', port); |
0f2d19dd JB |
3683 | return !0; |
3684 | } | |
3685 | ||
3686 | ||
3b3b36dd | 3687 | SCM_DEFINE (scm_force, "force", 1, 0, 0, |
1bbd0b84 | 3688 | (SCM x), |
445f675c DH |
3689 | "If the promise X has not been computed yet, compute and return\n" |
3690 | "X, otherwise just return the previously computed value.") | |
1bbd0b84 | 3691 | #define FUNC_NAME s_scm_force |
0f2d19dd | 3692 | { |
445f675c DH |
3693 | SCM_VALIDATE_SMOB (1, x, promise); |
3694 | if (!((1L << 16) & SCM_CELL_WORD_0 (x))) | |
0f2d19dd | 3695 | { |
445f675c DH |
3696 | SCM ans = scm_apply (SCM_CELL_OBJECT_1 (x), SCM_EOL, SCM_EOL); |
3697 | if (!((1L << 16) & SCM_CELL_WORD_0 (x))) | |
0f2d19dd JB |
3698 | { |
3699 | SCM_DEFER_INTS; | |
445f675c DH |
3700 | SCM_SET_CELL_OBJECT_1 (x, ans); |
3701 | SCM_SET_CELL_WORD_0 (x, SCM_CELL_WORD_0 (x) | (1L << 16)); | |
0f2d19dd JB |
3702 | SCM_ALLOW_INTS; |
3703 | } | |
3704 | } | |
445f675c | 3705 | return SCM_CELL_OBJECT_1 (x); |
0f2d19dd | 3706 | } |
1bbd0b84 | 3707 | #undef FUNC_NAME |
0f2d19dd | 3708 | |
445f675c | 3709 | |
a1ec6916 | 3710 | SCM_DEFINE (scm_promise_p, "promise?", 1, 0, 0, |
1bbd0b84 | 3711 | (SCM x), |
b380b885 MD |
3712 | "Return true if @var{obj} is a promise, i.e. a delayed computation\n" |
3713 | "(@pxref{Delayed evaluation,,,r4rs.info,The Revised^4 Report on Scheme}).") | |
1bbd0b84 | 3714 | #define FUNC_NAME s_scm_promise_p |
0f2d19dd | 3715 | { |
e841c3e0 | 3716 | return SCM_BOOL (SCM_TYP16_PREDICATE (scm_tc16_promise, x)); |
0f2d19dd | 3717 | } |
1bbd0b84 | 3718 | #undef FUNC_NAME |
0f2d19dd | 3719 | |
445f675c | 3720 | |
a1ec6916 | 3721 | SCM_DEFINE (scm_cons_source, "cons-source", 3, 0, 0, |
1bbd0b84 | 3722 | (SCM xorig, SCM x, SCM y), |
11768c04 NJ |
3723 | "Create and return a new pair whose car and cdr are @var{x} and @var{y}.\n" |
3724 | "Any source properties associated with @var{xorig} are also associated\n" | |
3725 | "with the new pair.") | |
1bbd0b84 | 3726 | #define FUNC_NAME s_scm_cons_source |
26d5b9b4 MD |
3727 | { |
3728 | SCM p, z; | |
3729 | SCM_NEWCELL (z); | |
445f675c DH |
3730 | SCM_SET_CELL_OBJECT_0 (z, x); |
3731 | SCM_SET_CELL_OBJECT_1 (z, y); | |
26d5b9b4 MD |
3732 | /* Copy source properties possibly associated with xorig. */ |
3733 | p = scm_whash_lookup (scm_source_whash, xorig); | |
445f675c | 3734 | if (!SCM_IMP (p)) |
26d5b9b4 MD |
3735 | scm_whash_insert (scm_source_whash, z, p); |
3736 | return z; | |
3737 | } | |
1bbd0b84 | 3738 | #undef FUNC_NAME |
26d5b9b4 | 3739 | |
445f675c | 3740 | |
a1ec6916 | 3741 | SCM_DEFINE (scm_copy_tree, "copy-tree", 1, 0, 0, |
1bbd0b84 | 3742 | (SCM obj), |
b380b885 MD |
3743 | "Recursively copy the data tree that is bound to @var{obj}, and return a\n" |
3744 | "pointer to the new data structure. @code{copy-tree} recurses down the\n" | |
3745 | "contents of both pairs and vectors (since both cons cells and vector\n" | |
3746 | "cells may point to arbitrary objects), and stops recursing when it hits\n" | |
3747 | "any other object.") | |
1bbd0b84 | 3748 | #define FUNC_NAME s_scm_copy_tree |
0f2d19dd JB |
3749 | { |
3750 | SCM ans, tl; | |
26d5b9b4 | 3751 | if (SCM_IMP (obj)) |
ff467021 | 3752 | return obj; |
3910272e MD |
3753 | if (SCM_VECTORP (obj)) |
3754 | { | |
b5c2579a | 3755 | scm_sizet i = SCM_VECTOR_LENGTH (obj); |
3910272e MD |
3756 | ans = scm_make_vector (SCM_MAKINUM (i), SCM_UNSPECIFIED); |
3757 | while (i--) | |
3758 | SCM_VELTS (ans)[i] = scm_copy_tree (SCM_VELTS (obj)[i]); | |
3759 | return ans; | |
3760 | } | |
ff467021 | 3761 | if (SCM_NCONSP (obj)) |
0f2d19dd | 3762 | return obj; |
26d5b9b4 MD |
3763 | ans = tl = scm_cons_source (obj, |
3764 | scm_copy_tree (SCM_CAR (obj)), | |
3765 | SCM_UNSPECIFIED); | |
cabe682c | 3766 | while (obj = SCM_CDR (obj), SCM_CONSP (obj)) |
a23afe53 MD |
3767 | { |
3768 | SCM_SETCDR (tl, scm_cons (scm_copy_tree (SCM_CAR (obj)), | |
3769 | SCM_UNSPECIFIED)); | |
3770 | tl = SCM_CDR (tl); | |
3771 | } | |
3772 | SCM_SETCDR (tl, obj); | |
0f2d19dd JB |
3773 | return ans; |
3774 | } | |
1bbd0b84 | 3775 | #undef FUNC_NAME |
0f2d19dd | 3776 | |
1cc91f1b | 3777 | |
68d8be66 MD |
3778 | SCM scm_system_transformer; |
3779 | ||
0f2d19dd | 3780 | SCM |
68d8be66 | 3781 | scm_i_eval_x (SCM exp, SCM env) |
0f2d19dd | 3782 | { |
549e6ec6 MD |
3783 | SCM transformer = scm_fluid_ref (SCM_CDR (scm_system_transformer)); |
3784 | if (SCM_NIMP (transformer)) | |
68d8be66 MD |
3785 | exp = scm_apply (transformer, exp, scm_listofnull); |
3786 | return SCM_XEVAL (exp, env); | |
0f2d19dd JB |
3787 | } |
3788 | ||
68d8be66 MD |
3789 | SCM |
3790 | scm_i_eval (SCM exp, SCM env) | |
3791 | { | |
3792 | SCM transformer = scm_fluid_ref (SCM_CDR (scm_system_transformer)); | |
3793 | if (SCM_NIMP (transformer)) | |
3794 | exp = scm_apply (transformer, exp, scm_listofnull); | |
3795 | return SCM_XEVAL (scm_copy_tree (exp), env); | |
3796 | } | |
3797 | ||
3798 | SCM | |
3799 | scm_eval_x (SCM exp, SCM module) | |
0f2d19dd | 3800 | { |
68d8be66 MD |
3801 | return scm_i_eval_x (exp, |
3802 | scm_top_level_env (SCM_MODULE_EVAL_CLOSURE (module))); | |
0f2d19dd JB |
3803 | } |
3804 | ||
68d8be66 MD |
3805 | /* Eval does not take the second arg optionally. This is intentional |
3806 | * in order to be R5RS compatible, and to prepare for the new module | |
3807 | * system, where we would like to make the choice of evaluation | |
3808 | * environment explicit. | |
3809 | */ | |
549e6ec6 | 3810 | |
68d8be66 MD |
3811 | SCM_DEFINE (scm_eval, "eval", 2, 0, 0, |
3812 | (SCM exp, SCM environment), | |
b380b885 | 3813 | "Evaluate @var{exp}, a list representing a Scheme expression, in the\n" |
68d8be66 | 3814 | "environment given by @var{environment specifier}.") |
1bbd0b84 | 3815 | #define FUNC_NAME s_scm_eval |
0f2d19dd | 3816 | { |
68d8be66 MD |
3817 | SCM_VALIDATE_MODULE (2, environment); |
3818 | return scm_i_eval (scm_copy_tree (exp), | |
3819 | scm_top_level_env (SCM_MODULE_EVAL_CLOSURE (environment))); | |
0f2d19dd | 3820 | } |
1bbd0b84 | 3821 | #undef FUNC_NAME |
0f2d19dd | 3822 | |
68d8be66 | 3823 | #if (SCM_DEBUG_DEPRECATED == 0) |
1cc91f1b | 3824 | |
68d8be66 MD |
3825 | /* Use scm_selected_module () or scm_interaction_environment () |
3826 | * instead. The former is the module selected during loading of code. | |
3827 | * The latter is the module in which the user of this thread currently | |
3828 | * types expressions. | |
3829 | */ | |
3830 | ||
3831 | SCM scm_top_level_lookup_closure_var; | |
3832 | ||
3833 | /* Avoid using this functionality altogether (except for implementing | |
3834 | * libguile, where you can use scm_i_eval or scm_i_eval_x). | |
3835 | * | |
3836 | * Applications should use either C level scm_eval_x or Scheme scm_eval. */ | |
3837 | ||
3838 | SCM | |
3839 | scm_eval_3 (SCM obj, int copyp, SCM env) | |
3840 | { | |
3841 | if (copyp) | |
3842 | return scm_i_eval (obj, env); | |
3843 | else | |
3844 | return scm_i_eval_x (obj, env); | |
3845 | } | |
3846 | ||
3847 | SCM_DEFINE (scm_eval2, "eval2", 2, 0, 0, | |
3848 | (SCM obj, SCM env_thunk), | |
3849 | "Evaluate @var{exp}, a Scheme expression, in the environment designated\n" | |
3850 | "by @var{lookup}, a symbol-lookup function. @code{(eval exp)} is\n" | |
3851 | "equivalent to @code{(eval2 exp *top-level-lookup-closure*)}.") | |
3852 | #define FUNC_NAME s_scm_eval2 | |
0f2d19dd | 3853 | { |
68d8be66 | 3854 | return scm_i_eval (obj, scm_top_level_env (env_thunk)); |
0f2d19dd | 3855 | } |
68d8be66 MD |
3856 | #undef FUNC_NAME |
3857 | ||
3858 | #endif /* DEPRECATED */ | |
0f2d19dd | 3859 | |
6dbd0af5 MD |
3860 | |
3861 | /* At this point, scm_deval and scm_dapply are generated. | |
3862 | */ | |
3863 | ||
0f2d19dd | 3864 | #ifdef DEBUG_EXTENSIONS |
6dbd0af5 MD |
3865 | # define DEVAL |
3866 | # include "eval.c" | |
0f2d19dd JB |
3867 | #endif |
3868 | ||
3869 | ||
1cc91f1b | 3870 | |
0f2d19dd JB |
3871 | void |
3872 | scm_init_eval () | |
0f2d19dd | 3873 | { |
33b97402 MD |
3874 | scm_init_opts (scm_evaluator_traps, |
3875 | scm_evaluator_trap_table, | |
3876 | SCM_N_EVALUATOR_TRAPS); | |
3877 | scm_init_opts (scm_eval_options_interface, | |
3878 | scm_eval_opts, | |
3879 | SCM_N_EVAL_OPTIONS); | |
3880 | ||
f99c9c28 MD |
3881 | scm_tc16_promise = scm_make_smob_type ("promise", 0); |
3882 | scm_set_smob_mark (scm_tc16_promise, scm_markcdr); | |
e841c3e0 | 3883 | scm_set_smob_print (scm_tc16_promise, promise_print); |
b8229a3b | 3884 | |
81123e6d | 3885 | scm_f_apply = scm_make_subr ("apply", scm_tc7_lsubr_2, scm_apply); |
549e6ec6 MD |
3886 | scm_system_transformer = scm_sysintern ("scm:eval-transformer", |
3887 | scm_make_fluid ()); | |
0f2d19dd | 3888 | |
43a912cf MD |
3889 | scm_lisp_nil = scm_sysintern ("nil", SCM_UNDEFINED); |
3890 | SCM_SETCDR (scm_lisp_nil, SCM_CAR (scm_lisp_nil)); | |
3891 | scm_lisp_nil = SCM_CAR (scm_lisp_nil); | |
3892 | scm_lisp_t = scm_sysintern ("t", SCM_UNDEFINED); | |
3893 | SCM_SETCDR (scm_lisp_t, SCM_CAR (scm_lisp_t)); | |
3894 | scm_lisp_t = SCM_CAR (scm_lisp_t); | |
73b64342 | 3895 | |
0f2d19dd | 3896 | /* acros */ |
0f2d19dd JB |
3897 | /* end of acros */ |
3898 | ||
68d8be66 | 3899 | #if SCM_DEBUG_DEPRECATED == 0 |
dc19d1d2 | 3900 | scm_top_level_lookup_closure_var = |
549e6ec6 | 3901 | scm_sysintern ("*top-level-lookup-closure*", scm_make_fluid ()); |
68d8be66 | 3902 | #endif |
0f2d19dd | 3903 | |
8dc9439f | 3904 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 3905 | #include "libguile/eval.x" |
8dc9439f | 3906 | #endif |
25eaf21a MD |
3907 | |
3908 | scm_add_feature ("delay"); | |
0f2d19dd | 3909 | } |
0f2d19dd | 3910 | |
6dbd0af5 | 3911 | #endif /* !DEVAL */ |
89e00824 ML |
3912 | |
3913 | /* | |
3914 | Local Variables: | |
3915 | c-file-style: "gnu" | |
3916 | End: | |
3917 | */ |