Commit | Line | Data |
---|---|---|
0f2d19dd JB |
1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
6dbd0af5 MD |
43 | /* This file is read twice in order to produce debugging versions of |
44 | * scm_ceval and scm_apply. These functions, scm_deval and | |
45 | * scm_dapply, are produced when we define the preprocessor macro | |
46 | * DEVAL. The file is divided into sections which are treated | |
47 | * differently with respect to DEVAL. The heads of these sections are | |
48 | * marked with the string "SECTION:". | |
49 | */ | |
50 | ||
51 | ||
52 | /* SECTION: This code is compiled once. | |
0f2d19dd JB |
53 | */ |
54 | ||
55 | #ifndef DEVAL | |
56 | ||
57 | #include <stdio.h> | |
58 | #include "_scm.h" | |
59 | ||
60 | \f | |
61 | ||
6dbd0af5 MD |
62 | /* The evaluator contains a plethora of EVAL symbols. |
63 | * This is an attempt at explanation. | |
64 | * | |
65 | * The following macros should be used in code which is read twice | |
66 | * (where the choice of evaluator is hard soldered): | |
67 | * | |
68 | * SCM_CEVAL is the symbol used within one evaluator to call itself. | |
69 | * Originally, it is defined to scm_ceval, but is redefined to | |
70 | * scm_deval during the second pass. | |
71 | * | |
72 | * SIDEVAL corresponds to SCM_CEVAL, but is used in situations where | |
73 | * only side effects of expressions matter. All immediates are | |
74 | * ignored. | |
75 | * | |
76 | * EVALIM is used when it is known that the expression is an | |
77 | * immediate. (This macro never calls an evaluator.) | |
78 | * | |
79 | * EVALCAR evaluates the car of an expression. | |
80 | * | |
81 | * EVALCELLCAR is like EVALCAR, but is used when it is known that the | |
82 | * car is a lisp cell. | |
83 | * | |
84 | * The following macros should be used in code which is read once | |
85 | * (where the choice of evaluator is dynamic): | |
86 | * | |
87 | * XEVAL takes care of immediates without calling an evaluator. It | |
88 | * then calls scm_ceval *or* scm_deval, depending on the debugging | |
89 | * mode. | |
90 | * | |
91 | * XEVALCAR corresponds to EVALCAR, but uses scm_ceval *or* scm_deval | |
92 | * depending on the debugging mode. | |
93 | * | |
94 | * The main motivation for keeping this plethora is efficiency | |
95 | * together with maintainability (=> locality of code). | |
96 | */ | |
97 | ||
0f2d19dd JB |
98 | #define EVALCELLCAR(x, env) (SCM_SYMBOLP (SCM_CAR(x)) \ |
99 | ? *scm_lookupcar(x, env) \ | |
100 | : SCM_CEVAL(SCM_CAR(x), env)) | |
101 | ||
102 | #ifdef MEMOIZE_LOCALS | |
6dbd0af5 | 103 | #define EVALIM(x, env) (SCM_ILOCP(x)?*scm_ilookup((x), env):x) |
0f2d19dd | 104 | #else |
6dbd0af5 | 105 | #define EVALIM(x, env) x |
0f2d19dd JB |
106 | #endif |
107 | #define EVALCAR(x, env) (SCM_NCELLP(SCM_CAR(x))\ | |
108 | ? (SCM_IMP(SCM_CAR(x)) \ | |
6dbd0af5 | 109 | ? EVALIM(SCM_CAR(x), env) \ |
0f2d19dd JB |
110 | : SCM_GLOC_VAL(SCM_CAR(x))) \ |
111 | : EVALCELLCAR(x, env)) | |
112 | #ifdef DEBUG_EXTENSIONS | |
113 | #define XEVALCAR(x, env) (SCM_NCELLP(SCM_CAR(x)) \ | |
114 | ? (SCM_IMP(SCM_CAR(x)) \ | |
6dbd0af5 | 115 | ? EVALIM(SCM_CAR(x), env) \ |
0f2d19dd JB |
116 | : SCM_GLOC_VAL(SCM_CAR(x))) \ |
117 | : (SCM_SYMBOLP(SCM_CAR(x)) \ | |
118 | ? *scm_lookupcar(x, env) \ | |
119 | : (*scm_ceval_ptr) (SCM_CAR(x), env))) | |
120 | #else | |
121 | #define XEVALCAR(x, env) EVALCAR(x, env) | |
122 | #endif | |
123 | ||
124 | #define EXTEND_SCM_ENV SCM_EXTEND_SCM_ENV | |
125 | ||
126 | #ifdef MEMOIZE_LOCALS | |
127 | #ifdef __STDC__ | |
128 | SCM * | |
129 | scm_ilookup (SCM iloc, SCM env) | |
130 | #else | |
131 | SCM * | |
132 | scm_ilookup (iloc, env) | |
133 | SCM iloc; | |
134 | SCM env; | |
135 | #endif | |
136 | { | |
137 | register int ir = SCM_IFRAME (iloc); | |
138 | register SCM er = env; | |
139 | for (; 0 != ir; --ir) | |
140 | er = SCM_CDR (er); | |
141 | er = SCM_CAR (er); | |
142 | for (ir = SCM_IDIST (iloc); 0 != ir; --ir) | |
143 | er = SCM_CDR (er); | |
144 | if (SCM_ICDRP (iloc)) | |
145 | return &SCM_CDR (er); | |
146 | return &SCM_CAR (SCM_CDR (er)); | |
147 | } | |
148 | #endif | |
149 | ||
150 | #ifdef __STDC__ | |
151 | SCM * | |
152 | scm_lookupcar (SCM vloc, SCM genv) | |
153 | #else | |
154 | SCM * | |
155 | scm_lookupcar (vloc, genv) | |
156 | SCM vloc; | |
157 | SCM genv; | |
158 | #endif | |
159 | { | |
160 | SCM env = genv; | |
161 | register SCM *al, fl, var = SCM_CAR (vloc); | |
162 | #ifdef MEMOIZE_LOCALS | |
163 | register SCM iloc = SCM_ILOC00; | |
164 | #endif | |
165 | for (; SCM_NIMP (env); env = SCM_CDR (env)) | |
166 | { | |
167 | if (SCM_BOOL_T == scm_procedure_p (SCM_CAR (env))) | |
168 | break; | |
169 | al = &SCM_CAR (env); | |
170 | for (fl = SCM_CAR (*al); SCM_NIMP (fl); fl = SCM_CDR (fl)) | |
171 | { | |
172 | if (SCM_NCONSP (fl)) | |
173 | if (fl == var) | |
174 | { | |
175 | #ifdef MEMOIZE_LOCALS | |
176 | SCM_CAR (vloc) = iloc + SCM_ICDR; | |
177 | #endif | |
178 | return &SCM_CDR (*al); | |
179 | } | |
180 | else | |
181 | break; | |
182 | al = &SCM_CDR (*al); | |
183 | if (SCM_CAR (fl) == var) | |
184 | { | |
185 | #ifdef MEMOIZE_LOCALS | |
186 | #ifndef RECKLESS /* letrec inits to SCM_UNDEFINED */ | |
187 | if (SCM_UNBNDP (SCM_CAR (*al))) | |
188 | { | |
189 | env = SCM_EOL; | |
190 | goto errout; | |
191 | } | |
192 | #endif | |
193 | SCM_CAR (vloc) = iloc; | |
194 | #endif | |
195 | return &SCM_CAR (*al); | |
196 | } | |
197 | #ifdef MEMOIZE_LOCALS | |
198 | iloc += SCM_IDINC; | |
199 | #endif | |
200 | } | |
201 | #ifdef MEMOIZE_LOCALS | |
202 | iloc = (~SCM_IDSTMSK) & (iloc + SCM_IFRINC); | |
203 | #endif | |
204 | } | |
205 | { | |
206 | SCM top_thunk, vcell; | |
207 | if (SCM_NIMP(env)) | |
208 | { | |
209 | top_thunk = SCM_CAR(env); /* env now refers to a top level env thunk */ | |
210 | env = SCM_CDR (env); | |
211 | } | |
212 | else | |
213 | top_thunk = SCM_BOOL_F; | |
214 | vcell = scm_sym2vcell (var, top_thunk, SCM_BOOL_F); | |
215 | if (vcell == SCM_BOOL_F) | |
216 | goto errout; | |
217 | else | |
218 | var = vcell; | |
219 | } | |
220 | #ifndef RECKLESS | |
221 | if (SCM_NNULLP (env) || SCM_UNBNDP (SCM_CDR (var))) | |
222 | { | |
223 | var = SCM_CAR (var); | |
224 | errout: | |
225 | scm_everr (vloc, genv, var, | |
226 | (SCM_NULLP (env) | |
227 | ? "unbound variable: " | |
228 | : "damaged environment"), | |
229 | ""); | |
230 | } | |
231 | #endif | |
232 | SCM_CAR (vloc) = var + 1; | |
233 | /* Except wait...what if the var is not a vcell, | |
234 | * but syntax or something.... | |
235 | */ | |
236 | return &SCM_CDR (var); | |
237 | } | |
238 | ||
239 | #define unmemocar scm_unmemocar | |
240 | #ifdef __STDC__ | |
241 | SCM | |
242 | scm_unmemocar (SCM form, SCM env) | |
243 | #else | |
244 | SCM | |
245 | scm_unmemocar (form, env) | |
246 | SCM form; | |
247 | SCM env; | |
248 | #endif | |
249 | { | |
6dbd0af5 | 250 | #ifdef DEBUG_EXTENSIONS |
0f2d19dd | 251 | register int ir; |
6dbd0af5 | 252 | #endif |
0f2d19dd JB |
253 | SCM c; |
254 | ||
255 | if (SCM_IMP (form)) | |
256 | return form; | |
257 | c = SCM_CAR (form); | |
258 | if (1 == (c & 7)) | |
259 | SCM_CAR (form) = SCM_CAR (c - 1); | |
260 | #ifdef MEMOIZE_LOCALS | |
6dbd0af5 | 261 | #ifdef DEBUG_EXTENSIONS |
0f2d19dd JB |
262 | else if (SCM_ILOCP (c)) |
263 | { | |
264 | for (ir = SCM_IFRAME (c); ir != 0; --ir) | |
265 | env = SCM_CDR (env); | |
266 | env = SCM_CAR (SCM_CAR (env)); | |
267 | for (ir = SCM_IDIST (c); ir != 0; --ir) | |
268 | env = SCM_CDR (env); | |
269 | SCM_CAR (form) = SCM_ICDRP (c) ? env : SCM_CAR (env); | |
270 | } | |
6dbd0af5 | 271 | #endif |
0f2d19dd JB |
272 | #endif |
273 | return form; | |
274 | } | |
275 | ||
276 | #ifdef __STDC__ | |
277 | SCM | |
278 | scm_eval_car (SCM pair, SCM env) | |
279 | #else | |
280 | SCM | |
281 | scm_eval_car (pair, env) | |
282 | SCM pair; | |
283 | SCM env; | |
284 | #endif | |
285 | { | |
6dbd0af5 | 286 | return XEVALCAR (pair, env); |
0f2d19dd JB |
287 | } |
288 | ||
289 | \f | |
290 | /* | |
291 | * The following rewrite expressions and | |
292 | * some memoized forms have different syntax | |
293 | */ | |
294 | ||
295 | static char s_expression[] = "missing or extra expression"; | |
296 | static char s_test[] = "bad test"; | |
297 | static char s_body[] = "bad body"; | |
298 | static char s_bindings[] = "bad bindings"; | |
299 | static char s_variable[] = "bad variable"; | |
300 | static char s_clauses[] = "bad or missing clauses"; | |
301 | static char s_formals[] = "bad formals"; | |
302 | #define ASSYNT(_cond, _arg, _pos, _subr) if(!(_cond))scm_wta(_arg, (char *)_pos, _subr); | |
303 | ||
304 | SCM scm_i_dot, scm_i_quote, scm_i_quasiquote, scm_i_lambda, scm_i_let, | |
305 | scm_i_arrow, scm_i_else, scm_i_unquote, scm_i_uq_splicing, scm_i_apply; | |
306 | SCM scm_i_name; | |
6dbd0af5 MD |
307 | SCM scm_i_define, scm_i_and, scm_i_begin, scm_i_case, scm_i_cond, |
308 | scm_i_do, scm_i_if, scm_i_let, scm_i_letrec, scm_i_letstar, | |
309 | scm_i_or, scm_i_set, scm_i_atapply, scm_i_atcall_cc; | |
0f2d19dd JB |
310 | static char s_quasiquote[] = "quasiquote"; |
311 | static char s_delay[] = "delay"; | |
6dbd0af5 MD |
312 | static char s_undefine[] = "undefine"; |
313 | #ifdef DEBUG_EXTENSIONS | |
314 | SCM scm_i_enter_frame, scm_i_apply_frame, scm_i_exit_frame; | |
315 | SCM scm_i_trace; | |
316 | #endif | |
0f2d19dd JB |
317 | |
318 | #define ASRTSYNTAX(cond_, msg_) if(!(cond_))scm_wta(xorig, (msg_), what); | |
319 | ||
320 | ||
321 | #ifdef __STDC__ | |
322 | static void | |
323 | bodycheck (SCM xorig, SCM *bodyloc, char *what) | |
324 | #else | |
325 | static void | |
326 | bodycheck (xorig, bodyloc, what) | |
327 | SCM xorig; | |
328 | SCM *bodyloc; | |
329 | char *what; | |
330 | #endif | |
331 | { | |
332 | ASRTSYNTAX (scm_ilength (*bodyloc) >= 1, s_expression); | |
333 | } | |
334 | ||
335 | ||
336 | #ifdef __STDC__ | |
337 | SCM | |
338 | scm_m_quote (SCM xorig, SCM env) | |
339 | #else | |
340 | SCM | |
341 | scm_m_quote (xorig, env) | |
342 | SCM xorig; | |
343 | SCM env; | |
344 | #endif | |
345 | { | |
346 | ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, xorig, s_expression, "quote"); | |
347 | return scm_cons (SCM_IM_QUOTE, SCM_CDR (xorig)); | |
348 | } | |
349 | ||
350 | ||
351 | #ifdef __STDC__ | |
352 | SCM | |
353 | scm_m_begin (SCM xorig, SCM env) | |
354 | #else | |
355 | SCM | |
356 | scm_m_begin (xorig, env) | |
357 | SCM xorig; | |
358 | SCM env; | |
359 | #endif | |
360 | { | |
361 | ASSYNT (scm_ilength (SCM_CDR (xorig)) >= 1, xorig, s_expression, "begin"); | |
362 | return scm_cons (SCM_IM_BEGIN, SCM_CDR (xorig)); | |
363 | } | |
364 | ||
365 | ||
366 | #ifdef __STDC__ | |
367 | SCM | |
368 | scm_m_if (SCM xorig, SCM env) | |
369 | #else | |
370 | SCM | |
371 | scm_m_if (xorig, env) | |
372 | SCM xorig; | |
373 | SCM env; | |
374 | #endif | |
375 | { | |
376 | int len = scm_ilength (SCM_CDR (xorig)); | |
377 | ASSYNT (len >= 2 && len <= 3, xorig, s_expression, "if"); | |
378 | return scm_cons (SCM_IM_IF, SCM_CDR (xorig)); | |
379 | } | |
380 | ||
381 | ||
382 | #ifdef __STDC__ | |
383 | SCM | |
384 | scm_m_set (SCM xorig, SCM env) | |
385 | #else | |
386 | SCM | |
387 | scm_m_set (xorig, env) | |
388 | SCM xorig; | |
389 | SCM env; | |
390 | #endif | |
391 | { | |
6dbd0af5 MD |
392 | SCM x = SCM_CDR (xorig); |
393 | ASSYNT (2 == scm_ilength (x), xorig, s_expression, "set!"); | |
394 | ASSYNT (SCM_NIMP (SCM_CAR (x)) && SCM_SYMBOLP (SCM_CAR (x)), | |
395 | xorig, s_variable, "set!"); | |
0f2d19dd JB |
396 | return scm_cons (SCM_IM_SET, x); |
397 | } | |
398 | ||
399 | ||
400 | #if 0 | |
401 | #ifdef __STDC__ | |
402 | SCM | |
403 | scm_m_vref (SCM xorig, SCM env) | |
404 | #else | |
405 | SCM | |
406 | scm_m_vref (xorig, env) | |
407 | SCM xorig; | |
408 | SCM env; | |
409 | #endif | |
410 | { | |
411 | SCM x = SCM_CDR (xorig); | |
412 | ASSYNT (1 == scm_ilength (x), xorig, s_expression, s_vref); | |
413 | if (SCM_NIMP(x) && UDSCM_VARIABLEP (SCM_CAR (x))) | |
414 | { | |
415 | scm_everr (SCM_UNDEFINED, env, SCM_CAR(SCM_CDR(x)), s_variable, | |
416 | "global variable reference"); | |
417 | } | |
418 | ASSYNT (SCM_NIMP(x) && DEFSCM_VARIABLEP (SCM_CAR (x)), | |
419 | xorig, s_variable, s_vref); | |
420 | return | |
421 | return scm_cons (IM_VREF, x); | |
422 | } | |
423 | ||
424 | ||
425 | #ifdef __STDC__ | |
426 | SCM | |
427 | scm_m_vset (SCM xorig, SCM env) | |
428 | #else | |
429 | SCM | |
430 | scm_m_vset (xorig, env) | |
431 | SCM xorig; | |
432 | SCM env; | |
433 | #endif | |
434 | { | |
435 | SCM x = SCM_CDR (xorig); | |
436 | ASSYNT (3 == scm_ilength (x), xorig, s_expression, s_vset); | |
437 | ASSYNT (( DEFSCM_VARIABLEP (SCM_CAR (x)) | |
438 | || UDSCM_VARIABLEP (SCM_CAR (x))), | |
439 | xorig, s_variable, s_vset); | |
440 | return scm_cons (IM_VSET, x); | |
441 | } | |
442 | #endif | |
443 | ||
444 | ||
445 | #ifdef __STDC__ | |
446 | SCM | |
447 | scm_m_and (SCM xorig, SCM env) | |
448 | #else | |
449 | SCM | |
450 | scm_m_and (xorig, env) | |
451 | SCM xorig; | |
452 | SCM env; | |
453 | #endif | |
454 | { | |
455 | int len = scm_ilength (SCM_CDR (xorig)); | |
456 | ASSYNT (len >= 0, xorig, s_test, "and"); | |
457 | if (len >= 1) | |
458 | return scm_cons (SCM_IM_AND, SCM_CDR (xorig)); | |
459 | else | |
460 | return SCM_BOOL_T; | |
461 | } | |
462 | ||
463 | ||
464 | #ifdef __STDC__ | |
465 | SCM | |
466 | scm_m_or (SCM xorig, SCM env) | |
467 | #else | |
468 | SCM | |
469 | scm_m_or (xorig, env) | |
470 | SCM xorig; | |
471 | SCM env; | |
472 | #endif | |
473 | { | |
474 | int len = scm_ilength (SCM_CDR (xorig)); | |
475 | ASSYNT (len >= 0, xorig, s_test, "or"); | |
476 | if (len >= 1) | |
477 | return scm_cons (SCM_IM_OR, SCM_CDR (xorig)); | |
478 | else | |
479 | return SCM_BOOL_F; | |
480 | } | |
481 | ||
482 | ||
483 | #ifdef __STDC__ | |
484 | SCM | |
485 | scm_m_case (SCM xorig, SCM env) | |
486 | #else | |
487 | SCM | |
488 | scm_m_case (xorig, env) | |
489 | SCM xorig; | |
490 | SCM env; | |
491 | #endif | |
492 | { | |
493 | SCM proc, x = SCM_CDR (xorig); | |
494 | ASSYNT (scm_ilength (x) >= 2, xorig, s_clauses, "case"); | |
495 | while (SCM_NIMP (x = SCM_CDR (x))) | |
496 | { | |
497 | proc = SCM_CAR (x); | |
498 | ASSYNT (scm_ilength (proc) >= 2, xorig, s_clauses, "case"); | |
499 | ASSYNT (scm_ilength (SCM_CAR (proc)) >= 0 || scm_i_else == SCM_CAR (proc), | |
500 | xorig, s_clauses, "case"); | |
501 | } | |
502 | return scm_cons (SCM_IM_CASE, SCM_CDR (xorig)); | |
503 | } | |
504 | ||
505 | ||
506 | #ifdef __STDC__ | |
507 | SCM | |
508 | scm_m_cond (SCM xorig, SCM env) | |
509 | #else | |
510 | SCM | |
511 | scm_m_cond (xorig, env) | |
512 | SCM xorig; | |
513 | SCM env; | |
514 | #endif | |
515 | { | |
516 | SCM arg1, x = SCM_CDR (xorig); | |
517 | int len = scm_ilength (x); | |
518 | ASSYNT (len >= 1, xorig, s_clauses, "cond"); | |
519 | while (SCM_NIMP (x)) | |
520 | { | |
521 | arg1 = SCM_CAR (x); | |
522 | len = scm_ilength (arg1); | |
523 | ASSYNT (len >= 1, xorig, s_clauses, "cond"); | |
524 | if (scm_i_else == SCM_CAR (arg1)) | |
525 | { | |
526 | ASSYNT (SCM_NULLP (SCM_CDR (x)) && len >= 2, xorig, "bad ELSE clause", "cond"); | |
527 | SCM_CAR (arg1) = SCM_BOOL_T; | |
528 | } | |
529 | if (len >= 2 && scm_i_arrow == SCM_CAR (SCM_CDR (arg1))) | |
530 | ASSYNT (3 == len && SCM_NIMP (SCM_CAR (SCM_CDR (SCM_CDR (arg1)))), | |
531 | xorig, "bad recipient", "cond"); | |
532 | x = SCM_CDR (x); | |
533 | } | |
534 | return scm_cons (SCM_IM_COND, SCM_CDR (xorig)); | |
535 | } | |
536 | ||
537 | ||
538 | #ifdef __STDC__ | |
539 | SCM | |
540 | scm_m_lambda (SCM xorig, SCM env) | |
541 | #else | |
542 | SCM | |
543 | scm_m_lambda (xorig, env) | |
544 | SCM xorig; | |
545 | SCM env; | |
546 | #endif | |
547 | { | |
548 | SCM proc, x = SCM_CDR (xorig); | |
549 | if (scm_ilength (x) < 2) | |
550 | goto badforms; | |
551 | proc = SCM_CAR (x); | |
552 | if SCM_NULLP | |
553 | (proc) goto memlambda; | |
554 | if SCM_IMP | |
555 | (proc) goto badforms; | |
556 | if SCM_SYMBOLP | |
557 | (proc) goto memlambda; | |
558 | if SCM_NCONSP | |
559 | (proc) goto badforms; | |
560 | while SCM_NIMP | |
561 | (proc) | |
562 | { | |
563 | if SCM_NCONSP | |
564 | (proc) | |
565 | if (!SCM_SYMBOLP (proc)) | |
566 | goto badforms; | |
567 | else | |
568 | goto memlambda; | |
569 | if (!(SCM_NIMP (SCM_CAR (proc)) && SCM_SYMBOLP (SCM_CAR (proc)))) | |
570 | goto badforms; | |
571 | proc = SCM_CDR (proc); | |
572 | } | |
573 | if SCM_NNULLP | |
574 | (proc) | |
575 | badforms:scm_wta (xorig, s_formals, "lambda"); | |
576 | memlambda: | |
577 | bodycheck (xorig, &SCM_CDR (x), "lambda"); | |
578 | return scm_cons (SCM_IM_LAMBDA, SCM_CDR (xorig)); | |
579 | } | |
580 | ||
581 | ||
582 | #ifdef __STDC__ | |
583 | SCM | |
584 | scm_m_letstar (SCM xorig, SCM env) | |
585 | #else | |
586 | SCM | |
587 | scm_m_letstar (xorig, env) | |
588 | SCM xorig; | |
589 | SCM env; | |
590 | #endif | |
591 | { | |
592 | SCM x = SCM_CDR (xorig), arg1, proc, vars = SCM_EOL, *varloc = &vars; | |
593 | int len = scm_ilength (x); | |
594 | ASSYNT (len >= 2, xorig, s_body, "let*"); | |
595 | proc = SCM_CAR (x); | |
596 | ASSYNT (scm_ilength (proc) >= 0, xorig, s_bindings, "let*"); | |
6dbd0af5 | 597 | while SCM_NIMP (proc) |
0f2d19dd JB |
598 | { |
599 | arg1 = SCM_CAR (proc); | |
600 | ASSYNT (2 == scm_ilength (arg1), xorig, s_bindings, "let*"); | |
601 | ASSYNT (SCM_NIMP (SCM_CAR (arg1)) && SCM_SYMBOLP (SCM_CAR (arg1)), xorig, s_variable, "let*"); | |
602 | *varloc = scm_cons2 (SCM_CAR (arg1), SCM_CAR (SCM_CDR (arg1)), SCM_EOL); | |
603 | varloc = &SCM_CDR (SCM_CDR (*varloc)); | |
604 | proc = SCM_CDR (proc); | |
605 | } | |
606 | x = scm_cons (vars, SCM_CDR (x)); | |
607 | bodycheck (xorig, &SCM_CDR (x), "let*"); | |
608 | return scm_cons (SCM_IM_LETSTAR, x); | |
609 | } | |
610 | ||
611 | /* DO gets the most radically altered syntax | |
612 | (do ((<var1> <init1> <step1>) | |
613 | (<var2> <init2>) | |
614 | ... ) | |
615 | (<test> <return>) | |
616 | <body>) | |
617 | ;; becomes | |
618 | (do_mem (varn ... var2 var1) | |
619 | (<init1> <init2> ... <initn>) | |
620 | (<test> <return>) | |
621 | (<body>) | |
622 | <step1> <step2> ... <stepn>) ;; missing steps replaced by var | |
623 | */ | |
624 | ||
625 | ||
626 | #ifdef __STDC__ | |
627 | SCM | |
628 | scm_m_do (SCM xorig, SCM env) | |
629 | #else | |
630 | SCM | |
631 | scm_m_do (xorig, env) | |
632 | SCM xorig; | |
633 | SCM env; | |
634 | #endif | |
635 | { | |
636 | SCM x = SCM_CDR (xorig), arg1, proc; | |
637 | SCM vars = SCM_EOL, inits = SCM_EOL, steps = SCM_EOL; | |
638 | SCM *initloc = &inits, *steploc = &steps; | |
639 | int len = scm_ilength (x); | |
640 | ASSYNT (len >= 2, xorig, s_test, "do"); | |
641 | proc = SCM_CAR (x); | |
642 | ASSYNT (scm_ilength (proc) >= 0, xorig, s_bindings, "do"); | |
643 | while SCM_NIMP | |
644 | (proc) | |
645 | { | |
646 | arg1 = SCM_CAR (proc); | |
647 | len = scm_ilength (arg1); | |
648 | ASSYNT (2 == len || 3 == len, xorig, s_bindings, "do"); | |
649 | ASSYNT (SCM_NIMP (SCM_CAR (arg1)) && SCM_SYMBOLP (SCM_CAR (arg1)), xorig, s_variable, "do"); | |
650 | /* vars reversed here, inits and steps reversed at evaluation */ | |
651 | vars = scm_cons (SCM_CAR (arg1), vars); /* variable */ | |
652 | arg1 = SCM_CDR (arg1); | |
653 | *initloc = scm_cons (SCM_CAR (arg1), SCM_EOL); /* init */ | |
654 | initloc = &SCM_CDR (*initloc); | |
655 | arg1 = SCM_CDR (arg1); | |
656 | *steploc = scm_cons (SCM_IMP (arg1) ? SCM_CAR (vars) : SCM_CAR (arg1), SCM_EOL); /* step */ | |
657 | steploc = &SCM_CDR (*steploc); | |
658 | proc = SCM_CDR (proc); | |
659 | } | |
660 | x = SCM_CDR (x); | |
661 | ASSYNT (scm_ilength (SCM_CAR (x)) >= 1, xorig, s_test, "do"); | |
662 | x = scm_cons2 (SCM_CAR (x), SCM_CDR (x), steps); | |
663 | x = scm_cons2 (vars, inits, x); | |
664 | bodycheck (xorig, &SCM_CAR (SCM_CDR (SCM_CDR (x))), "do"); | |
665 | return scm_cons (SCM_IM_DO, x); | |
666 | } | |
667 | ||
6dbd0af5 MD |
668 | /* evalcar is small version of inline EVALCAR when we don't care about |
669 | * speed | |
670 | */ | |
671 | #define evalcar scm_eval_car | |
0f2d19dd JB |
672 | |
673 | #ifdef __STDC__ | |
674 | static SCM | |
675 | iqq (SCM form, SCM env, int depth) | |
676 | #else | |
677 | static SCM | |
678 | iqq (form, env, depth) | |
679 | SCM form; | |
680 | SCM env; | |
681 | int depth; | |
682 | #endif | |
683 | { | |
684 | SCM tmp; | |
685 | int edepth = depth; | |
686 | if SCM_IMP | |
687 | (form) return form; | |
688 | if (SCM_VECTORP (form)) | |
689 | { | |
690 | long i = SCM_LENGTH (form); | |
691 | SCM *data = SCM_VELTS (form); | |
692 | tmp = SCM_EOL; | |
693 | for (; --i >= 0;) | |
694 | tmp = scm_cons (data[i], tmp); | |
695 | return scm_vector (iqq (tmp, env, depth)); | |
696 | } | |
697 | if SCM_NCONSP | |
698 | (form) return form; | |
699 | tmp = SCM_CAR (form); | |
700 | if (scm_i_quasiquote == tmp) | |
701 | { | |
702 | depth++; | |
703 | goto label; | |
704 | } | |
705 | if (scm_i_unquote == tmp) | |
706 | { | |
707 | --depth; | |
708 | label: | |
709 | form = SCM_CDR (form); | |
710 | /* !!! might need a check here to be sure that form isn't a struct. */ | |
711 | SCM_ASSERT (SCM_NIMP (form) && SCM_ECONSP (form) && SCM_NULLP (SCM_CDR (form)), | |
712 | form, SCM_ARG1, s_quasiquote); | |
713 | if (0 == depth) | |
714 | return evalcar (form, env); | |
715 | return scm_cons2 (tmp, iqq (SCM_CAR (form), env, depth), SCM_EOL); | |
716 | } | |
717 | if (SCM_NIMP (tmp) && (scm_i_uq_splicing == SCM_CAR (tmp))) | |
718 | { | |
719 | tmp = SCM_CDR (tmp); | |
720 | if (0 == --edepth) | |
721 | return scm_append (scm_cons2 (evalcar (tmp, env), iqq (SCM_CDR (form), env, depth), SCM_EOL)); | |
722 | } | |
723 | return scm_cons (iqq (SCM_CAR (form), env, edepth), iqq (SCM_CDR (form), env, depth)); | |
724 | } | |
725 | ||
726 | /* Here are acros which return values rather than code. */ | |
727 | ||
728 | #ifdef __STDC__ | |
729 | SCM | |
730 | scm_m_quasiquote (SCM xorig, SCM env) | |
731 | #else | |
732 | SCM | |
733 | scm_m_quasiquote (xorig, env) | |
734 | SCM xorig; | |
735 | SCM env; | |
736 | #endif | |
737 | { | |
738 | SCM x = SCM_CDR (xorig); | |
739 | ASSYNT (scm_ilength (x) == 1, xorig, s_expression, s_quasiquote); | |
740 | return iqq (SCM_CAR (x), env, 1); | |
741 | } | |
742 | ||
743 | #ifdef __STDC__ | |
744 | SCM | |
745 | scm_m_delay (SCM xorig, SCM env) | |
746 | #else | |
747 | SCM | |
748 | scm_m_delay (xorig, env) | |
749 | SCM xorig; | |
750 | SCM env; | |
751 | #endif | |
752 | { | |
753 | ASSYNT (scm_ilength (xorig) == 2, xorig, s_expression, s_delay); | |
754 | xorig = SCM_CDR (xorig); | |
755 | return scm_makprom (scm_closure (scm_cons2 (SCM_EOL, SCM_CAR (xorig), SCM_CDR (xorig)), | |
756 | env)); | |
757 | } | |
758 | ||
759 | #ifdef __STDC__ | |
760 | static SCM | |
761 | env_top_level (SCM env) | |
762 | #else | |
763 | static SCM | |
764 | env_top_level (env) | |
765 | SCM env; | |
766 | #endif | |
767 | { | |
768 | while (SCM_NIMP(env)) | |
769 | { | |
770 | if (SCM_BOOL_T == scm_procedure_p (SCM_CAR(env))) | |
771 | return SCM_CAR(env); | |
772 | env = SCM_CDR (env); | |
773 | } | |
774 | return SCM_BOOL_F; | |
775 | } | |
776 | ||
777 | #ifdef __STDC__ | |
778 | SCM | |
779 | scm_m_define (SCM x, SCM env) | |
780 | #else | |
781 | SCM | |
782 | scm_m_define (x, env) | |
783 | SCM x; | |
784 | SCM env; | |
785 | #endif | |
786 | { | |
787 | SCM proc, arg1 = x; | |
788 | x = SCM_CDR (x); | |
789 | /* ASSYNT(SCM_NULLP(env), x, "bad placement", s_define);*/ | |
790 | ASSYNT (scm_ilength (x) >= 2, arg1, s_expression, "define"); | |
791 | proc = SCM_CAR (x); | |
792 | x = SCM_CDR (x); | |
793 | while (SCM_NIMP (proc) && SCM_CONSP (proc)) | |
794 | { /* nested define syntax */ | |
795 | x = scm_cons (scm_cons2 (scm_i_lambda, SCM_CDR (proc), x), SCM_EOL); | |
796 | proc = SCM_CAR (proc); | |
797 | } | |
798 | ASSYNT (SCM_NIMP (proc) && SCM_SYMBOLP (proc), arg1, s_variable, "define"); | |
799 | ASSYNT (1 == scm_ilength (x), arg1, s_expression, "define"); | |
800 | if (SCM_TOP_LEVEL (env)) | |
801 | { | |
802 | x = evalcar (x, env); | |
6dbd0af5 MD |
803 | #ifdef DEBUG_EXTENSIONS |
804 | if (RECORD_PROCNAMES && SCM_NIMP (x) && SCM_CLOSUREP (x)) | |
805 | scm_set_procedure_property_x (x, scm_i_name, proc); | |
806 | #endif | |
0f2d19dd JB |
807 | arg1 = scm_sym2vcell (proc, env_top_level (env), SCM_BOOL_T); |
808 | #if 0 | |
809 | #ifndef RECKLESS | |
810 | if (SCM_NIMP (SCM_CDR (arg1)) && ((SCM) SCM_SNAME (SCM_CDR (arg1)) == proc) | |
811 | && (SCM_CDR (arg1) != x)) | |
812 | scm_warn ("redefining built-in ", SCM_CHARS (proc)); | |
813 | else | |
814 | #endif | |
815 | if (5 <= scm_verbose && SCM_UNDEFINED != SCM_CDR (arg1)) | |
816 | scm_warn ("redefining ", SCM_CHARS (proc)); | |
0f2d19dd JB |
817 | #endif |
818 | SCM_CDR (arg1) = x; | |
819 | #ifdef SICP | |
820 | return scm_cons2 (scm_i_quote, SCM_CAR (arg1), SCM_EOL); | |
821 | #else | |
822 | return SCM_UNSPECIFIED; | |
823 | #endif | |
824 | } | |
825 | return scm_cons2 (SCM_IM_DEFINE, proc, x); | |
826 | } | |
6dbd0af5 MD |
827 | |
828 | SCM | |
829 | scm_m_undefine (x, env) | |
830 | SCM x, env; | |
831 | { | |
832 | SCM arg1 = x; | |
833 | x = SCM_CDR (x); | |
834 | ASSYNT (SCM_TOP_LEVEL (env), arg1, "bad placement ", s_undefine); | |
835 | ASSYNT (SCM_NIMP (x) && SCM_CONSP (x) && SCM_CDR (x) == SCM_EOL, | |
836 | arg1, s_expression, s_undefine); | |
837 | x = SCM_CAR (x); | |
838 | ASSYNT (SCM_NIMP (x) && SCM_SYMBOLP (x), arg1, s_variable, s_undefine); | |
839 | arg1 = scm_sym2vcell (x, env_top_level (env), SCM_BOOL_F); | |
840 | ASSYNT (SCM_NFALSEP (arg1) && !SCM_UNBNDP (SCM_CDR (arg1)), | |
841 | x, "variable already unbound ", s_undefine); | |
842 | #if 0 | |
843 | #ifndef RECKLESS | |
844 | if (SCM_NIMP (SCM_CDR (arg1)) && ((SCM) SCM_SNAME (SCM_CDR (arg1)) == x)) | |
845 | scm_warn ("undefining built-in ", SCM_CHARS (x)); | |
846 | else | |
847 | #endif | |
848 | if (5 <= scm_verbose && SCM_UNDEFINED != SCM_CDR (arg1)) | |
849 | scm_warn ("redefining ", SCM_CHARS (x)); | |
850 | #endif | |
851 | SCM_CDR (arg1) = SCM_UNDEFINED; | |
852 | #ifdef SICP | |
853 | return SCM_CAR (arg1); | |
854 | #else | |
855 | return SCM_UNSPECIFIED; | |
856 | #endif | |
857 | } | |
858 | ||
0f2d19dd JB |
859 | /* end of acros */ |
860 | ||
861 | #ifdef __STDC__ | |
862 | SCM | |
863 | scm_m_letrec (SCM xorig, SCM env) | |
864 | #else | |
865 | SCM | |
866 | scm_m_letrec (xorig, env) | |
867 | SCM xorig; | |
868 | SCM env; | |
869 | #endif | |
870 | { | |
871 | SCM cdrx = SCM_CDR (xorig); /* locally mutable version of form */ | |
872 | char *what = SCM_CHARS (SCM_CAR (xorig)); | |
873 | SCM x = cdrx, proc, arg1; /* structure traversers */ | |
874 | SCM vars = SCM_EOL, inits = SCM_EOL, *initloc = &inits; | |
875 | ||
876 | ASRTSYNTAX (scm_ilength (x) >= 2, s_body); | |
877 | proc = SCM_CAR (x); | |
878 | if SCM_NULLP | |
879 | (proc) return scm_m_letstar (xorig, env); /* null binding, let* faster */ | |
880 | ASRTSYNTAX (scm_ilength (proc) >= 1, s_bindings); | |
881 | do | |
882 | { | |
883 | /* vars scm_list reversed here, inits reversed at evaluation */ | |
884 | arg1 = SCM_CAR (proc); | |
885 | ASRTSYNTAX (2 == scm_ilength (arg1), s_bindings); | |
886 | ASRTSYNTAX (SCM_NIMP (SCM_CAR (arg1)) && SCM_SYMBOLP (SCM_CAR (arg1)), s_variable); | |
887 | vars = scm_cons (SCM_CAR (arg1), vars); | |
888 | *initloc = scm_cons (SCM_CAR (SCM_CDR (arg1)), SCM_EOL); | |
889 | initloc = &SCM_CDR (*initloc); | |
890 | } | |
891 | while SCM_NIMP | |
892 | (proc = SCM_CDR (proc)); | |
893 | cdrx = scm_cons2 (vars, inits, SCM_CDR (x)); | |
894 | bodycheck (xorig, &SCM_CDR (SCM_CDR (cdrx)), what); | |
895 | return scm_cons (SCM_IM_LETREC, cdrx); | |
896 | } | |
897 | ||
898 | #ifdef __STDC__ | |
899 | SCM | |
900 | scm_m_let (SCM xorig, SCM env) | |
901 | #else | |
902 | SCM | |
903 | scm_m_let (xorig, env) | |
904 | SCM xorig; | |
905 | SCM env; | |
906 | #endif | |
907 | { | |
908 | SCM cdrx = SCM_CDR (xorig); /* locally mutable version of form */ | |
909 | SCM x = cdrx, proc, arg1, name; /* structure traversers */ | |
910 | SCM vars = SCM_EOL, inits = SCM_EOL, *varloc = &vars, *initloc = &inits; | |
911 | ||
912 | ASSYNT (scm_ilength (x) >= 2, xorig, s_body, "let"); | |
913 | proc = SCM_CAR (x); | |
914 | if (SCM_NULLP (proc) | |
915 | || (SCM_NIMP (proc) && SCM_CONSP (proc) | |
916 | && SCM_NIMP (SCM_CAR (proc)) && SCM_CONSP (SCM_CAR (proc)) && SCM_NULLP (SCM_CDR (proc)))) | |
917 | return scm_m_letstar (xorig, env); /* null or single binding, let* is faster */ | |
918 | ASSYNT (SCM_NIMP (proc), xorig, s_bindings, "let"); | |
919 | if (SCM_CONSP (proc)) /* plain let, proc is <bindings> */ | |
920 | return scm_cons (SCM_IM_LET, SCM_CDR (scm_m_letrec (xorig, env))); | |
921 | if (!SCM_SYMBOLP (proc)) | |
922 | scm_wta (xorig, s_bindings, "let"); /* bad let */ | |
923 | name = proc; /* named let, build equiv letrec */ | |
924 | x = SCM_CDR (x); | |
925 | ASSYNT (scm_ilength (x) >= 2, xorig, s_body, "let"); | |
926 | proc = SCM_CAR (x); /* bindings scm_list */ | |
927 | ASSYNT (scm_ilength (proc) >= 0, xorig, s_bindings, "let"); | |
928 | while SCM_NIMP | |
929 | (proc) | |
930 | { /* vars and inits both in order */ | |
931 | arg1 = SCM_CAR (proc); | |
932 | ASSYNT (2 == scm_ilength (arg1), xorig, s_bindings, "let"); | |
933 | ASSYNT (SCM_NIMP (SCM_CAR (arg1)) && SCM_SYMBOLP (SCM_CAR (arg1)), xorig, s_variable, "let"); | |
934 | *varloc = scm_cons (SCM_CAR (arg1), SCM_EOL); | |
935 | varloc = &SCM_CDR (*varloc); | |
936 | *initloc = scm_cons (SCM_CAR (SCM_CDR (arg1)), SCM_EOL); | |
937 | initloc = &SCM_CDR (*initloc); | |
938 | proc = SCM_CDR (proc); | |
939 | } | |
940 | return | |
941 | scm_m_letrec (scm_cons2 (scm_i_let, | |
942 | scm_cons (scm_cons2 (name, scm_cons2 (scm_i_lambda, vars, SCM_CDR (x)), SCM_EOL), SCM_EOL), | |
943 | scm_acons (name, inits, SCM_EOL)), /* body */ | |
944 | env); | |
945 | } | |
946 | ||
947 | ||
948 | #ifdef __STDC__ | |
949 | SCM | |
950 | scm_m_apply (SCM xorig, SCM env) | |
951 | #else | |
952 | SCM | |
953 | scm_m_apply (xorig, env) | |
954 | SCM xorig; | |
955 | SCM env; | |
956 | #endif | |
957 | { | |
958 | ASSYNT (scm_ilength (SCM_CDR (xorig)) == 2, xorig, s_expression, "@apply"); | |
959 | return scm_cons (SCM_IM_APPLY, SCM_CDR (xorig)); | |
960 | } | |
961 | ||
962 | #define s_atcall_cc (SCM_ISYMSCM_CHARS(SCM_IM_CONT)+1) | |
963 | ||
964 | #ifdef __STDC__ | |
965 | SCM | |
966 | scm_m_cont (SCM xorig, SCM env) | |
967 | #else | |
968 | SCM | |
969 | scm_m_cont (xorig, env) | |
970 | SCM xorig; | |
971 | SCM env; | |
972 | #endif | |
973 | { | |
974 | ASSYNT (scm_ilength (SCM_CDR (xorig)) == 1, xorig, s_expression, "@call-with-current-continuation"); | |
975 | return scm_cons (SCM_IM_CONT, SCM_CDR (xorig)); | |
976 | } | |
977 | ||
6dbd0af5 MD |
978 | /* scm_unmemocopy takes a memoized expression together with its |
979 | * environment and rewrites it to its original form. Thus, it is the | |
980 | * inversion of the rewrite rules above. The procedure is not | |
981 | * optimized for speed. It's used in scm_iprin1 when printing the | |
982 | * code of a closure, in scm_procedure_source and in scm_expr_stack | |
983 | * when generating the source for a stackframe. | |
984 | */ | |
985 | ||
986 | #ifdef __STDC__ | |
987 | static SCM | |
988 | unmemocopy (SCM x, SCM env) | |
989 | #else | |
990 | static SCM | |
991 | unmemocopy (x, env) | |
992 | SCM x; | |
993 | SCM env; | |
994 | #endif | |
995 | { | |
996 | SCM ls, z; | |
997 | #ifdef DEBUG_EXTENSIONS | |
998 | SCM p; | |
999 | #endif | |
1000 | if (SCM_NCELLP (x) || SCM_NECONSP (x)) | |
1001 | return x; | |
1002 | #ifdef DEBUG_EXTENSIONS | |
1003 | p = scm_whash_lookup (scm_source_whash, x); | |
1004 | #endif | |
1005 | switch (SCM_TYP7 (x)) | |
1006 | { | |
1007 | case (127 & SCM_IM_AND): | |
1008 | ls = z = scm_cons (scm_i_and, SCM_UNSPECIFIED); | |
1009 | break; | |
1010 | case (127 & SCM_IM_BEGIN): | |
1011 | ls = z = scm_cons (scm_i_begin, SCM_UNSPECIFIED); | |
1012 | break; | |
1013 | case (127 & SCM_IM_CASE): | |
1014 | ls = z = scm_cons (scm_i_case, SCM_UNSPECIFIED); | |
1015 | break; | |
1016 | case (127 & SCM_IM_COND): | |
1017 | ls = z = scm_cons (scm_i_cond, SCM_UNSPECIFIED); | |
1018 | break; | |
1019 | case (127 & SCM_IM_DO): | |
1020 | ls = scm_cons (scm_i_do, SCM_UNSPECIFIED); | |
1021 | goto transform; | |
1022 | case (127 & SCM_IM_IF): | |
1023 | ls = z = scm_cons (scm_i_if, SCM_UNSPECIFIED); | |
1024 | break; | |
1025 | case (127 & SCM_IM_LET): | |
1026 | ls = scm_cons (scm_i_let, SCM_UNSPECIFIED); | |
1027 | goto transform; | |
1028 | case (127 & SCM_IM_LETREC): | |
1029 | { | |
1030 | SCM f, v, e, s; | |
1031 | ls = scm_cons (scm_i_letrec, SCM_UNSPECIFIED); | |
1032 | transform: | |
1033 | x = SCM_CDR (x); | |
1034 | f = v = SCM_CAR (x); | |
1035 | x = SCM_CDR (x); | |
1036 | z = EXTEND_SCM_ENV (f, SCM_EOL, env); | |
1037 | e = scm_reverse (unmemocopy (SCM_CAR (x), | |
1038 | SCM_CAR (ls) == scm_i_letrec ? z : env)); | |
1039 | env = z; | |
1040 | s = SCM_CAR (ls) == scm_i_do | |
1041 | ? scm_reverse (unmemocopy (SCM_CDR (SCM_CDR (SCM_CDR (x))), env)) | |
1042 | : f; | |
1043 | z = SCM_EOL; | |
1044 | do | |
1045 | { | |
1046 | z = scm_acons (SCM_CAR (v), | |
1047 | scm_cons (SCM_CAR (e), | |
1048 | SCM_CAR (s) == SCM_CAR (v) | |
1049 | ? SCM_EOL | |
1050 | : scm_cons (SCM_CAR (s), SCM_EOL)), | |
1051 | z); | |
1052 | v = SCM_CDR (v); | |
1053 | e = SCM_CDR (e); | |
1054 | s = SCM_CDR (s); | |
1055 | } | |
1056 | while SCM_NIMP (v); | |
1057 | SCM_CDR (ls) = z = scm_cons (z, SCM_UNSPECIFIED); | |
1058 | if (SCM_CAR (ls) == scm_i_do) | |
1059 | { | |
1060 | x = SCM_CDR (x); | |
1061 | z = (SCM_CDR (z) = scm_cons (unmemocopy (SCM_CAR (x), env), | |
1062 | SCM_UNSPECIFIED)); | |
1063 | x = (SCM) (&SCM_CAR (SCM_CDR (x)) - 1); | |
1064 | } | |
1065 | break; | |
1066 | } | |
1067 | case (127 & SCM_IM_LETSTAR): | |
1068 | { | |
1069 | SCM b, y; | |
1070 | x = SCM_CDR (x); | |
1071 | b = SCM_CAR (x); | |
1072 | y = SCM_EOL; | |
1073 | if SCM_IMP (b) | |
1074 | { | |
1075 | env = EXTEND_SCM_ENV (SCM_EOL, SCM_EOL, env); | |
1076 | goto letstar; | |
1077 | } | |
1078 | y = z = scm_acons (SCM_CAR (b), | |
1079 | unmemocar ( | |
1080 | scm_cons (unmemocopy (SCM_CAR (SCM_CDR (b)), env), SCM_EOL), env), | |
1081 | SCM_UNSPECIFIED); | |
1082 | env = EXTEND_SCM_ENV (SCM_CAR (b), SCM_BOOL_F, env); | |
1083 | b = SCM_CDR (SCM_CDR (b)); | |
1084 | if (SCM_IMP (b)) | |
1085 | { | |
1086 | SCM_SETCDR (y, SCM_EOL); | |
1087 | ls = scm_cons (scm_i_let, z = scm_cons (y, SCM_UNSPECIFIED)); | |
1088 | break; | |
1089 | } | |
1090 | do | |
1091 | { | |
1092 | z = (SCM_CDR (z) = scm_acons (SCM_CAR (b), | |
1093 | unmemocar ( | |
1094 | scm_cons (unmemocopy (SCM_CAR (SCM_CDR (b)), env), SCM_EOL), env), | |
1095 | SCM_UNSPECIFIED)); | |
1096 | env = EXTEND_SCM_ENV (SCM_CAR (b), SCM_BOOL_F, env); | |
1097 | b = SCM_CDR (SCM_CDR (b)); | |
1098 | } | |
1099 | while SCM_NIMP (b); | |
1100 | SCM_CDR (z) = SCM_EOL; | |
1101 | letstar: | |
1102 | ls = scm_cons (scm_i_letstar, z = scm_cons (y, SCM_UNSPECIFIED)); | |
1103 | break; | |
1104 | } | |
1105 | case (127 & SCM_IM_OR): | |
1106 | ls = z = scm_cons (scm_i_or, SCM_UNSPECIFIED); | |
1107 | break; | |
1108 | case (127 & SCM_IM_LAMBDA): | |
1109 | x = SCM_CDR (x); | |
1110 | ls = scm_cons (scm_i_lambda, | |
1111 | z = scm_cons (SCM_CAR (x), SCM_UNSPECIFIED)); | |
1112 | env = EXTEND_SCM_ENV (SCM_CAR (x), SCM_EOL, env); | |
1113 | break; | |
1114 | case (127 & SCM_IM_QUOTE): | |
1115 | ls = z = scm_cons (scm_i_quote, SCM_UNSPECIFIED); | |
1116 | break; | |
1117 | case (127 & SCM_IM_SET): | |
1118 | ls = z = scm_cons (scm_i_set, SCM_UNSPECIFIED); | |
1119 | break; | |
1120 | case (127 & SCM_IM_DEFINE): | |
1121 | { | |
1122 | SCM n; | |
1123 | x = SCM_CDR (x); | |
1124 | ls = scm_cons (scm_i_define, | |
1125 | z = scm_cons (n = SCM_CAR (x), SCM_UNSPECIFIED)); | |
1126 | if (SCM_NNULLP (env)) | |
1127 | SCM_CAR (SCM_CAR (env)) = scm_cons (n, SCM_CAR (SCM_CAR (env))); | |
1128 | break; | |
1129 | } | |
1130 | case (127 & SCM_MAKISYM (0)): | |
1131 | z = SCM_CAR (x); | |
1132 | if (!SCM_ISYMP (z)) | |
1133 | goto unmemo; | |
1134 | switch SCM_ISYMNUM (z) | |
1135 | { | |
1136 | case (SCM_ISYMNUM (SCM_IM_APPLY)): | |
1137 | ls = z = scm_cons (scm_i_atapply, SCM_UNSPECIFIED); | |
1138 | goto loop; | |
1139 | case (SCM_ISYMNUM (SCM_IM_CONT)): | |
1140 | ls = z = scm_cons (scm_i_atcall_cc, SCM_UNSPECIFIED); | |
1141 | goto loop; | |
1142 | default: | |
1143 | } | |
1144 | unmemo: | |
1145 | default: | |
1146 | ls = z = unmemocar (scm_cons (unmemocopy (SCM_CAR (x), env), | |
1147 | SCM_UNSPECIFIED), | |
1148 | env); | |
1149 | } | |
1150 | loop: | |
1151 | while (SCM_CELLP (x = SCM_CDR (x)) && SCM_ECONSP (x)) | |
1152 | z = (SCM_CDR (z) = unmemocar (scm_cons (unmemocopy (SCM_CAR (x), env), | |
1153 | SCM_UNSPECIFIED), | |
1154 | env)); | |
1155 | SCM_CDR (z) = x; | |
1156 | #ifdef DEBUG_EXTENSIONS | |
1157 | if (SCM_NFALSEP (p)) | |
1158 | scm_whash_insert (scm_source_whash, ls, p); | |
1159 | #endif | |
1160 | return ls; | |
1161 | } | |
1162 | ||
1163 | #ifdef __STDC__ | |
1164 | SCM | |
1165 | scm_unmemocopy (SCM x, SCM env) | |
1166 | #else | |
1167 | SCM | |
1168 | scm_unmemocopy (x, env) | |
1169 | SCM x; | |
1170 | SCM env; | |
1171 | #endif | |
1172 | { | |
1173 | if (SCM_NNULLP (env)) | |
1174 | /* Make a copy of the lowest frame to protect it from | |
1175 | modifications by SCM_IM_DEFINE */ | |
1176 | return unmemocopy (x, scm_cons (SCM_CAR (env), SCM_CDR (env))); | |
1177 | else | |
1178 | return unmemocopy (x, env); | |
1179 | } | |
1180 | ||
0f2d19dd JB |
1181 | #ifndef RECKLESS |
1182 | #ifdef __STDC__ | |
1183 | int | |
1184 | scm_badargsp (SCM formals, SCM args) | |
1185 | #else | |
1186 | int | |
1187 | scm_badargsp (formals, args) | |
1188 | SCM formals; | |
1189 | SCM args; | |
1190 | #endif | |
1191 | { | |
1192 | while SCM_NIMP | |
1193 | (formals) | |
1194 | { | |
1195 | if SCM_NCONSP | |
1196 | (formals) return 0; | |
1197 | if SCM_IMP | |
1198 | (args) return 1; | |
1199 | formals = SCM_CDR (formals); | |
1200 | args = SCM_CDR (args); | |
1201 | } | |
1202 | return SCM_NNULLP (args) ? 1 : 0; | |
1203 | } | |
1204 | #endif | |
1205 | ||
1206 | ||
1207 | \f | |
1208 | long scm_tc16_macro; | |
1209 | ||
6dbd0af5 MD |
1210 | #ifdef __STDC__ |
1211 | SCM | |
1212 | scm_eval_args (SCM l, SCM env) | |
1213 | #else | |
1214 | SCM | |
1215 | scm_eval_args (l, env) | |
1216 | SCM l; | |
1217 | SCM env; | |
1218 | #endif | |
1219 | { | |
1220 | SCM res = SCM_EOL, *lloc = &res; | |
1221 | while (SCM_NIMP (l)) | |
1222 | { | |
1223 | *lloc = scm_cons (EVALCAR (l, env), SCM_EOL); | |
1224 | lloc = &SCM_CDR (*lloc); | |
1225 | l = SCM_CDR (l); | |
1226 | } | |
1227 | return res; | |
1228 | } | |
0f2d19dd JB |
1229 | #endif /* !DEVAL */ |
1230 | ||
6dbd0af5 MD |
1231 | |
1232 | /* SECTION: This code is specific for the debugging support. One | |
1233 | * branch is read when DEVAL isn't defined, the other when DEVAL is | |
1234 | * defined. | |
1235 | */ | |
1236 | ||
1237 | #ifndef DEVAL | |
1238 | ||
1239 | #define SCM_APPLY scm_apply | |
1240 | #define PREP_APPLY(proc, args) | |
1241 | #define ENTER_APPLY | |
1242 | #define RETURN(x) return x; | |
1243 | #ifdef NO_CEVAL_STACK_CHECK | |
1244 | # ifdef STACK_CHECK | |
1245 | # undef STACK_CHECK | |
1246 | # endif | |
1247 | #endif | |
1248 | ||
1249 | #else /* !DEVAL */ | |
1250 | ||
0f2d19dd JB |
1251 | #undef SCM_CEVAL |
1252 | #define SCM_CEVAL scm_deval /* Substitute all uses of scm_ceval */ | |
1253 | #undef SCM_APPLY | |
1254 | #define SCM_APPLY scm_dapply | |
6dbd0af5 MD |
1255 | #undef PREP_APPLY |
1256 | #define PREP_APPLY(p, l) \ | |
1257 | { ++debug.info; debug.info->a.proc = p; debug.info->a.args = l; } | |
1258 | #undef ENTER_APPLY | |
1259 | #define ENTER_APPLY \ | |
1260 | {\ | |
1261 | SETARGSREADY (debug);\ | |
1262 | if (CHECK_APPLY)\ | |
1263 | if (APPLY_FRAME || (TRACE && PROCTRACEP (proc)))\ | |
1264 | {\ | |
1265 | SCM tmp, tail = TRACEDFRAMEP (debug) ? SCM_BOOL_T : SCM_BOOL_F;\ | |
1266 | SETTRACEDFRAME (debug);\ | |
1267 | if (CHEAPTRAPS)\ | |
1268 | {\ | |
1269 | tmp = scm_make_debugobj ((scm_debug_frame *) &debug);\ | |
1270 | scm_ithrow (scm_i_apply_frame, scm_cons2 (tmp, tail, SCM_EOL), 0);\ | |
1271 | }\ | |
1272 | else\ | |
1273 | {\ | |
1274 | scm_make_cont (&tmp);\ | |
1275 | if (!setjmp (SCM_JMPBUF (tmp)))\ | |
1276 | scm_ithrow (scm_i_apply_frame, scm_cons2 (tmp, tail, SCM_EOL), 0);\ | |
1277 | }\ | |
1278 | }\ | |
1279 | } | |
0f2d19dd JB |
1280 | #undef RETURN |
1281 | #define RETURN(e) {proc = (e); goto exit;} | |
6dbd0af5 MD |
1282 | #ifdef STACK_LIMIT |
1283 | # define STACK_CHECK | |
1284 | #endif | |
1285 | ||
1286 | /* scm_ceval_ptr points to the currently selected evaluator. | |
1287 | * *fixme*: Although efficiency is important here, this state variable | |
1288 | * should probably not be a global. It should be related to the | |
1289 | * current repl. | |
1290 | */ | |
1291 | ||
1292 | #ifdef __STDC__ | |
1293 | SCM (*scm_ceval_ptr) (SCM exp, SCM env); | |
0f2d19dd | 1294 | #else |
6dbd0af5 | 1295 | SCM (*scm_ceval_ptr) (); |
0f2d19dd JB |
1296 | #endif |
1297 | ||
6dbd0af5 MD |
1298 | /* last_debug_info_frame contains a pointer to the last debugging |
1299 | * information stack frame. It is accessed very often from the | |
1300 | * debugging evaluator, so it should probably not be indirectly | |
1301 | * addressed. Better to save and restore it from the current root at | |
1302 | * any stack swaps. | |
1303 | */ | |
1304 | ||
1305 | scm_debug_frame *last_debug_info_frame; | |
1306 | ||
1307 | /* scm_debug_eframe_size is the number of slots available for pseudo | |
1308 | * stack frames at each real stack frame. | |
1309 | */ | |
1310 | ||
1311 | int scm_debug_eframe_size; | |
1312 | ||
1313 | int debug_mode, check_entry, check_apply, check_exit; | |
1314 | ||
1315 | scm_option scm_debug_opts[] = { | |
1316 | { SCM_OPTION_BOOLEAN, "procnames", 1 }, | |
1317 | { SCM_OPTION_BOOLEAN, "deval", 0 }, | |
1318 | { SCM_OPTION_BOOLEAN, "breakpoints", 0 }, | |
1319 | { SCM_OPTION_BOOLEAN, "trace", 0 }, | |
1320 | { SCM_OPTION_BOOLEAN, "backtrace", 0 }, | |
1321 | { SCM_OPTION_INTEGER, "depth", 80 }, | |
1322 | { SCM_OPTION_INTEGER, "frames", 4 }, | |
1323 | { SCM_OPTION_BOOLEAN, "cheap", 1 } | |
1324 | }; | |
1325 | ||
1326 | scm_option scm_evaluator_trap_table[] = { | |
1327 | { SCM_OPTION_BOOLEAN, "enter-frame", 0 }, | |
1328 | { SCM_OPTION_BOOLEAN, "apply-frame", 0 }, | |
1329 | { SCM_OPTION_BOOLEAN, "exit-frame", 0 } | |
1330 | }; | |
1331 | ||
1332 | SCM | |
1333 | scm_deval_args (l, env, lloc) | |
1334 | SCM l, env, *lloc; | |
0f2d19dd | 1335 | { |
6dbd0af5 | 1336 | SCM *res = lloc; |
0f2d19dd JB |
1337 | while (SCM_NIMP (l)) |
1338 | { | |
1339 | *lloc = scm_cons (EVALCAR (l, env), SCM_EOL); | |
1340 | lloc = &SCM_CDR (*lloc); | |
1341 | l = SCM_CDR (l); | |
1342 | } | |
6dbd0af5 | 1343 | return *res; |
0f2d19dd JB |
1344 | } |
1345 | ||
6dbd0af5 MD |
1346 | #endif /* !DEVAL */ |
1347 | ||
1348 | ||
1349 | /* SECTION: Some local definitions for the evaluator. | |
1350 | */ | |
1351 | ||
1352 | #ifndef DEVAL | |
1353 | #ifdef SCM_FLOATS | |
1354 | #define CHECK_EQVISH(A,B) (((A) == (B)) || (SCM_NFALSEP (scm_eqv_p ((A), (B))))) | |
1355 | #else | |
1356 | #define CHECK_EQVISH(A,B) ((A) == (B)) | |
1357 | #endif | |
1358 | #endif /* DEVAL */ | |
1359 | ||
1360 | ||
1361 | /* SECTION: This is the evaluator. Like any real monster, it has | |
1362 | * three heads. This code is compiled twice. | |
1363 | */ | |
1364 | ||
0f2d19dd JB |
1365 | #if 0 |
1366 | #ifdef __STDC__ | |
1367 | SCM | |
1368 | scm_ceval (SCM x, SCM env) | |
1369 | #else | |
1370 | SCM | |
1371 | scm_ceval (x, env) | |
1372 | SCM x; | |
1373 | SCM env; | |
1374 | #endif | |
1375 | {} | |
1376 | #endif | |
1377 | #if 0 | |
1378 | #ifdef __STDC__ | |
1379 | SCM | |
1380 | scm_deval (SCM x, SCM env) | |
1381 | #else | |
1382 | SCM | |
1383 | scm_deval (x, env) | |
1384 | SCM x; | |
1385 | SCM env; | |
1386 | #endif | |
1387 | {} | |
1388 | #endif | |
1389 | ||
6dbd0af5 MD |
1390 | #ifdef __STDC__ |
1391 | SCM | |
1392 | SCM_CEVAL (SCM x, SCM env) | |
0f2d19dd | 1393 | #else |
6dbd0af5 | 1394 | SCM |
0f2d19dd JB |
1395 | SCM_CEVAL (x, env) |
1396 | SCM x; | |
1397 | SCM env; | |
6dbd0af5 | 1398 | #endif |
0f2d19dd JB |
1399 | { |
1400 | union | |
1401 | { | |
1402 | SCM *lloc; | |
1403 | SCM arg1; | |
1404 | } t; | |
6dbd0af5 MD |
1405 | SCM proc, arg2; |
1406 | #ifdef DEVAL | |
1407 | struct | |
1408 | { | |
1409 | scm_debug_frame *prev; | |
1410 | long status; | |
1411 | scm_debug_info vect[scm_debug_eframe_size]; | |
1412 | scm_debug_info *info; | |
1413 | } debug; | |
1414 | debug.prev = last_debug_info_frame; | |
1415 | debug.status = scm_debug_eframe_size; | |
1416 | debug.info = &debug.vect[0]; | |
1417 | last_debug_info_frame = (scm_debug_frame *) &debug; | |
1418 | #endif | |
1419 | #ifdef STACK_CHECK | |
1420 | if (STACK_OVERFLOW_P ((STACKITEM *) &debug) && scm_check_stack_p) | |
1421 | { | |
1422 | debug.info->e.exp = x; | |
1423 | debug.info->e.env = env; | |
1424 | scm_report_stack_overflow (); | |
1425 | } | |
1426 | #endif | |
1427 | #ifdef DEVAL | |
1428 | goto start; | |
1429 | #endif | |
1430 | loopnoap: | |
1431 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
1432 | loop: | |
1433 | #ifdef DEVAL | |
1434 | #if 0 /* This will probably never have any practical use ... */ | |
1435 | if (CHECK_EXIT) | |
1436 | { | |
1437 | if (SINGLE_STEP || (TRACE && TRACEDFRAMEP (debug))) | |
1438 | { | |
1439 | SINGLE_STEP = 0; | |
1440 | RESET_DEBUG_MODE; | |
1441 | CLEARTRACEDFRAME (debug); | |
1442 | scm_make_cont (&t.arg1); | |
1443 | if (!setjmp (SCM_JMPBUF (t.arg1))) | |
1444 | scm_ithrow (scm_i_exit_tail, scm_cons (t.arg1, SCM_EOL), 0); | |
1445 | } | |
1446 | } | |
1447 | nextframe: | |
1448 | #endif | |
1449 | CLEARARGSREADY (debug); | |
1450 | if (OVERFLOWP (debug)) | |
1451 | --debug.info; | |
1452 | else if (++debug.info == (scm_debug_info *) &debug.info) | |
1453 | { | |
1454 | SETOVERFLOW (debug); | |
1455 | debug.info -= 2; | |
1456 | } | |
1457 | start: | |
1458 | debug.info->e.exp = x; | |
1459 | debug.info->e.env = env; | |
1460 | if (CHECK_ENTRY) | |
1461 | if (ENTER_FRAME || (BREAKPOINTS && SRCBRKP (x))) | |
1462 | { | |
1463 | SCM tail = TAILRECP (debug) ? SCM_BOOL_T : SCM_BOOL_F; | |
1464 | SETTAILREC (debug); | |
1465 | ENTER_FRAME = 0; | |
1466 | RESET_DEBUG_MODE; | |
1467 | if (CHEAPTRAPS) | |
1468 | t.arg1 = scm_make_debugobj ((scm_debug_frame *) &debug); | |
1469 | else | |
1470 | { | |
1471 | scm_make_cont (&t.arg1); | |
1472 | if (setjmp (SCM_JMPBUF (t.arg1))) | |
1473 | { | |
1474 | x = SCM_THROW_VALUE (t.arg1); | |
1475 | if (SCM_IMP (x)) | |
1476 | { | |
1477 | RETURN (x); | |
1478 | } | |
1479 | else | |
1480 | /* This gives the possibility for the debugger to | |
1481 | modify the source expression before evaluation. */ | |
1482 | goto dispatch; | |
1483 | } | |
1484 | } | |
1485 | scm_ithrow (scm_i_enter_frame, | |
1486 | scm_cons2 (t.arg1, tail, | |
1487 | scm_cons (scm_unmemocopy (x, env), SCM_EOL)), | |
1488 | 0); | |
1489 | } | |
1490 | dispatch: | |
1491 | #endif | |
0f2d19dd | 1492 | SCM_ASYNC_TICK; |
0f2d19dd JB |
1493 | switch (SCM_TYP7 (x)) |
1494 | { | |
1495 | case scm_tcs_symbols: | |
1496 | /* Only happens when called at top level. | |
1497 | */ | |
1498 | x = scm_cons (x, SCM_UNDEFINED); | |
1499 | goto retval; | |
1500 | ||
1501 | case (127 & SCM_IM_AND): | |
1502 | x = SCM_CDR (x); | |
1503 | t.arg1 = x; | |
1504 | while (SCM_NNULLP (t.arg1 = SCM_CDR (t.arg1))) | |
1505 | if (SCM_FALSEP (EVALCAR (x, env))) | |
1506 | { | |
1507 | RETURN (SCM_BOOL_F); | |
1508 | } | |
1509 | else | |
1510 | x = t.arg1; | |
6dbd0af5 | 1511 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1512 | goto carloop; |
1513 | ||
1514 | case (127 & SCM_IM_BEGIN): | |
6dbd0af5 MD |
1515 | cdrxnoap: |
1516 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
0f2d19dd JB |
1517 | cdrxbegin: |
1518 | x = SCM_CDR (x); | |
1519 | ||
1520 | begin: | |
1521 | t.arg1 = x; | |
1522 | while (SCM_NNULLP (t.arg1 = SCM_CDR (t.arg1))) | |
1523 | { | |
1524 | SIDEVAL (SCM_CAR (x), env); | |
1525 | x = t.arg1; | |
1526 | } | |
1527 | ||
1528 | carloop: /* scm_eval car of last form in list */ | |
1529 | if (SCM_NCELLP (SCM_CAR (x))) | |
1530 | { | |
1531 | x = SCM_CAR (x); | |
6dbd0af5 | 1532 | RETURN (SCM_IMP (x) ? EVALIM (x, env) : SCM_GLOC_VAL (x)) |
0f2d19dd JB |
1533 | } |
1534 | ||
1535 | if (SCM_SYMBOLP (SCM_CAR (x))) | |
1536 | { | |
1537 | retval: | |
6dbd0af5 | 1538 | RETURN (*scm_lookupcar (x, env)) |
0f2d19dd JB |
1539 | } |
1540 | ||
1541 | x = SCM_CAR (x); | |
1542 | goto loop; /* tail recurse */ | |
1543 | ||
1544 | ||
1545 | case (127 & SCM_IM_CASE): | |
1546 | x = SCM_CDR (x); | |
1547 | t.arg1 = EVALCAR (x, env); | |
1548 | while (SCM_NIMP (x = SCM_CDR (x))) | |
1549 | { | |
1550 | proc = SCM_CAR (x); | |
1551 | if (scm_i_else == SCM_CAR (proc)) | |
1552 | { | |
1553 | x = SCM_CDR (proc); | |
6dbd0af5 | 1554 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1555 | goto begin; |
1556 | } | |
1557 | proc = SCM_CAR (proc); | |
1558 | while (SCM_NIMP (proc)) | |
1559 | { | |
1560 | if (CHECK_EQVISH (SCM_CAR (proc), t.arg1)) | |
1561 | { | |
1562 | x = SCM_CDR (SCM_CAR (x)); | |
6dbd0af5 | 1563 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1564 | goto begin; |
1565 | } | |
1566 | proc = SCM_CDR (proc); | |
1567 | } | |
1568 | } | |
6dbd0af5 | 1569 | RETURN (SCM_UNSPECIFIED) |
0f2d19dd JB |
1570 | |
1571 | ||
1572 | case (127 & SCM_IM_COND): | |
1573 | while (SCM_NIMP (x = SCM_CDR (x))) | |
1574 | { | |
1575 | proc = SCM_CAR (x); | |
1576 | t.arg1 = EVALCAR (proc, env); | |
1577 | if (SCM_NFALSEP (t.arg1)) | |
1578 | { | |
1579 | x = SCM_CDR (proc); | |
6dbd0af5 | 1580 | if SCM_NULLP (x) |
0f2d19dd | 1581 | { |
6dbd0af5 | 1582 | RETURN (t.arg1) |
0f2d19dd JB |
1583 | } |
1584 | if (scm_i_arrow != SCM_CAR (x)) | |
6dbd0af5 MD |
1585 | { |
1586 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
1587 | goto begin; | |
1588 | } | |
0f2d19dd JB |
1589 | proc = SCM_CDR (x); |
1590 | proc = EVALCAR (proc, env); | |
1591 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
6dbd0af5 MD |
1592 | PREP_APPLY (proc, scm_cons (t.arg1, SCM_EOL)); |
1593 | ENTER_APPLY; | |
0f2d19dd JB |
1594 | goto evap1; |
1595 | } | |
1596 | } | |
6dbd0af5 | 1597 | RETURN (SCM_UNSPECIFIED) |
0f2d19dd JB |
1598 | |
1599 | ||
1600 | case (127 & SCM_IM_DO): | |
1601 | x = SCM_CDR (x); | |
1602 | proc = SCM_CAR (SCM_CDR (x)); /* inits */ | |
1603 | t.arg1 = SCM_EOL; /* values */ | |
1604 | while (SCM_NIMP (proc)) | |
1605 | { | |
1606 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); | |
1607 | proc = SCM_CDR (proc); | |
1608 | } | |
1609 | env = EXTEND_SCM_ENV (SCM_CAR (x), t.arg1, env); | |
1610 | x = SCM_CDR (SCM_CDR (x)); | |
1611 | while (proc = SCM_CAR (x), SCM_FALSEP (EVALCAR (proc, env))) | |
1612 | { | |
1613 | for (proc = SCM_CAR (SCM_CDR (x)); SCM_NIMP (proc); proc = SCM_CDR (proc)) | |
1614 | { | |
1615 | t.arg1 = SCM_CAR (proc); /* body */ | |
1616 | SIDEVAL (t.arg1, env); | |
1617 | } | |
1618 | for (t.arg1 = SCM_EOL, proc = SCM_CDR (SCM_CDR (x)); SCM_NIMP (proc); proc = SCM_CDR (proc)) | |
1619 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); /* steps */ | |
1620 | env = EXTEND_SCM_ENV (SCM_CAR (SCM_CAR (env)), t.arg1, SCM_CDR (env)); | |
1621 | } | |
1622 | x = SCM_CDR (proc); | |
1623 | if (SCM_NULLP (x)) | |
6dbd0af5 MD |
1624 | RETURN (SCM_UNSPECIFIED); |
1625 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); | |
0f2d19dd JB |
1626 | goto begin; |
1627 | ||
1628 | ||
1629 | case (127 & SCM_IM_IF): | |
1630 | x = SCM_CDR (x); | |
1631 | if (SCM_NFALSEP (EVALCAR (x, env))) | |
1632 | x = SCM_CDR (x); | |
1633 | else if (SCM_IMP (x = SCM_CDR (SCM_CDR (x)))) | |
1634 | { | |
1635 | RETURN (SCM_UNSPECIFIED); | |
1636 | } | |
6dbd0af5 | 1637 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1638 | goto carloop; |
1639 | ||
1640 | ||
1641 | case (127 & SCM_IM_LET): | |
1642 | x = SCM_CDR (x); | |
1643 | proc = SCM_CAR (SCM_CDR (x)); | |
1644 | t.arg1 = SCM_EOL; | |
1645 | do | |
1646 | { | |
1647 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); | |
1648 | } | |
1649 | while (SCM_NIMP (proc = SCM_CDR (proc))); | |
1650 | env = EXTEND_SCM_ENV (SCM_CAR (x), t.arg1, env); | |
1651 | x = SCM_CDR (x); | |
6dbd0af5 | 1652 | goto cdrxnoap; |
0f2d19dd JB |
1653 | |
1654 | ||
1655 | case (127 & SCM_IM_LETREC): | |
1656 | x = SCM_CDR (x); | |
1657 | env = EXTEND_SCM_ENV (SCM_CAR (x), scm_undefineds, env); | |
1658 | x = SCM_CDR (x); | |
1659 | proc = SCM_CAR (x); | |
1660 | t.arg1 = SCM_EOL; | |
1661 | do | |
1662 | { | |
1663 | t.arg1 = scm_cons (EVALCAR (proc, env), t.arg1); | |
1664 | } | |
1665 | while (SCM_NIMP (proc = SCM_CDR (proc))); | |
1666 | SCM_CDR (SCM_CAR (env)) = t.arg1; | |
6dbd0af5 | 1667 | goto cdrxnoap; |
0f2d19dd JB |
1668 | |
1669 | ||
1670 | case (127 & SCM_IM_LETSTAR): | |
1671 | x = SCM_CDR (x); | |
1672 | proc = SCM_CAR (x); | |
1673 | if (SCM_IMP (proc)) | |
1674 | { | |
1675 | env = EXTEND_SCM_ENV (SCM_EOL, SCM_EOL, env); | |
6dbd0af5 | 1676 | goto cdrxnoap; |
0f2d19dd JB |
1677 | } |
1678 | do | |
1679 | { | |
1680 | t.arg1 = SCM_CAR (proc); | |
1681 | proc = SCM_CDR (proc); | |
1682 | env = EXTEND_SCM_ENV (t.arg1, EVALCAR (proc, env), env); | |
1683 | } | |
1684 | while (SCM_NIMP (proc = SCM_CDR (proc))); | |
6dbd0af5 | 1685 | goto cdrxnoap; |
0f2d19dd JB |
1686 | |
1687 | case (127 & SCM_IM_OR): | |
1688 | x = SCM_CDR (x); | |
1689 | t.arg1 = x; | |
1690 | while (SCM_NNULLP (t.arg1 = SCM_CDR (t.arg1))) | |
1691 | { | |
1692 | x = EVALCAR (x, env); | |
1693 | if (SCM_NFALSEP (x)) | |
1694 | { | |
1695 | RETURN (x); | |
1696 | } | |
1697 | x = t.arg1; | |
1698 | } | |
6dbd0af5 | 1699 | PREP_APPLY (SCM_UNDEFINED, SCM_EOL); |
0f2d19dd JB |
1700 | goto carloop; |
1701 | ||
1702 | ||
1703 | case (127 & SCM_IM_LAMBDA): | |
1704 | RETURN (scm_closure (SCM_CDR (x), env)); | |
1705 | ||
1706 | ||
1707 | case (127 & SCM_IM_QUOTE): | |
1708 | RETURN (SCM_CAR (SCM_CDR (x))); | |
1709 | ||
1710 | ||
1711 | case (127 & SCM_IM_SET): | |
0f2d19dd JB |
1712 | x = SCM_CDR (x); |
1713 | proc = SCM_CAR (x); | |
6dbd0af5 | 1714 | switch (7 & (int) proc) |
0f2d19dd JB |
1715 | { |
1716 | case 0: | |
1717 | t.lloc = scm_lookupcar (x, env); | |
1718 | break; | |
1719 | case 1: | |
1720 | t.lloc = &SCM_GLOC_VAL (proc); | |
1721 | break; | |
1722 | #ifdef MEMOIZE_LOCALS | |
1723 | case 4: | |
1724 | t.lloc = scm_ilookup (proc, env); | |
1725 | break; | |
1726 | #endif | |
1727 | } | |
1728 | x = SCM_CDR (x); | |
1729 | *t.lloc = EVALCAR (x, env); | |
0f2d19dd JB |
1730 | #ifdef SICP |
1731 | RETURN (*t.lloc); | |
1732 | #else | |
1733 | RETURN (SCM_UNSPECIFIED); | |
1734 | #endif | |
1735 | ||
1736 | ||
1737 | case (127 & SCM_IM_DEFINE): /* only for internal defines */ | |
1738 | x = SCM_CDR (x); | |
1739 | proc = SCM_CAR (x); | |
1740 | x = SCM_CDR (x); | |
1741 | x = evalcar (x, env); | |
6dbd0af5 MD |
1742 | #ifdef DEBUG_EXTENSIONS |
1743 | if (RECORD_PROCNAMES && SCM_NIMP (x) && SCM_CLOSUREP (x)) | |
1744 | scm_set_procedure_property_x (x, scm_i_name, proc); | |
1745 | #endif | |
0f2d19dd JB |
1746 | env = SCM_CAR (env); |
1747 | SCM_DEFER_INTS; | |
1748 | SCM_CAR (env) = scm_cons (proc, SCM_CAR (env)); | |
1749 | SCM_CDR (env) = scm_cons (x, SCM_CDR (env)); | |
1750 | SCM_ALLOW_INTS; | |
1751 | RETURN (SCM_UNSPECIFIED); | |
1752 | ||
1753 | ||
1754 | ||
1755 | /* new syntactic forms go here. */ | |
1756 | case (127 & SCM_MAKISYM (0)): | |
1757 | proc = SCM_CAR (x); | |
1758 | SCM_ASRTGO (SCM_ISYMP (proc), badfun); | |
1759 | switch SCM_ISYMNUM (proc) | |
1760 | { | |
1761 | #if 0 | |
1762 | case (SCM_ISYMNUM (IM_VREF)): | |
1763 | { | |
1764 | SCM var; | |
1765 | var = SCM_CAR (SCM_CDR (x)); | |
1766 | RETURN (SCM_CDR(var)); | |
1767 | } | |
1768 | case (SCM_ISYMNUM (IM_VSET)): | |
1769 | SCM_CDR (SCM_CAR ( SCM_CDR (x))) = EVALCAR( SCM_CDR ( SCM_CDR (x)), env); | |
1770 | SCM_CAR (SCM_CAR ( SCM_CDR (x))) = scm_tc16_variable; | |
6dbd0af5 | 1771 | RETURN (SCM_UNSPECIFIED) |
0f2d19dd JB |
1772 | #endif |
1773 | ||
1774 | case (SCM_ISYMNUM (SCM_IM_APPLY)): | |
1775 | proc = SCM_CDR (x); | |
1776 | proc = EVALCAR (proc, env); | |
1777 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
1778 | if (SCM_CLOSUREP (proc)) | |
1779 | { | |
6dbd0af5 | 1780 | PREP_APPLY (proc, SCM_EOL); |
0f2d19dd JB |
1781 | t.arg1 = SCM_CDR (SCM_CDR (x)); |
1782 | t.arg1 = EVALCAR (t.arg1, env); | |
6dbd0af5 MD |
1783 | #ifdef DEVAL |
1784 | debug.info->a.args = t.arg1; | |
1785 | #endif | |
0f2d19dd JB |
1786 | #ifndef RECKLESS |
1787 | if (scm_badargsp (SCM_CAR (SCM_CODE (proc)), t.arg1)) | |
1788 | goto wrongnumargs; | |
1789 | #endif | |
1790 | env = EXTEND_SCM_ENV (SCM_CAR (SCM_CODE (proc)), t.arg1, SCM_ENV (proc)); | |
1791 | x = SCM_CODE (proc); | |
1792 | goto cdrxbegin; | |
1793 | } | |
1794 | proc = scm_i_apply; | |
1795 | goto evapply; | |
1796 | ||
1797 | case (SCM_ISYMNUM (SCM_IM_CONT)): | |
1798 | scm_make_cont (&t.arg1); | |
1799 | if (setjmp (SCM_JMPBUF (t.arg1))) | |
1800 | { | |
1801 | SCM val; | |
1802 | val = SCM_THROW_VALUE (t.arg1); | |
6dbd0af5 | 1803 | RETURN (val); |
0f2d19dd JB |
1804 | } |
1805 | proc = SCM_CDR (x); | |
1806 | proc = evalcar (proc, env); | |
1807 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
6dbd0af5 MD |
1808 | PREP_APPLY (proc, scm_cons (t.arg1, SCM_EOL)); |
1809 | ENTER_APPLY; | |
0f2d19dd JB |
1810 | goto evap1; |
1811 | ||
1812 | default: | |
1813 | goto badfun; | |
1814 | } | |
1815 | ||
1816 | default: | |
1817 | proc = x; | |
1818 | badfun: | |
1819 | scm_everr (x, env, proc, "Wrong type to apply: ", ""); | |
1820 | ||
1821 | case scm_tc7_vector: | |
1822 | case scm_tc7_wvect: | |
1823 | case scm_tc7_bvect: | |
1824 | case scm_tc7_byvect: | |
1825 | case scm_tc7_svect: | |
1826 | case scm_tc7_ivect: | |
1827 | case scm_tc7_uvect: | |
1828 | case scm_tc7_fvect: | |
1829 | case scm_tc7_dvect: | |
1830 | case scm_tc7_cvect: | |
1831 | #ifdef LONGLONGS | |
1832 | case scm_tc7_llvect: | |
1833 | #endif | |
1834 | case scm_tc7_string: | |
1835 | case scm_tc7_mb_string: | |
1836 | case scm_tc7_substring: | |
1837 | case scm_tc7_mb_substring: | |
1838 | case scm_tc7_smob: | |
1839 | case scm_tcs_closures: | |
1840 | case scm_tcs_subrs: | |
1841 | RETURN (x); | |
1842 | ||
1843 | #ifdef MEMOIZE_LOCALS | |
1844 | case (127 & SCM_ILOC00): | |
1845 | proc = *scm_ilookup (SCM_CAR (x), env); | |
1846 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
1847 | #ifndef RECKLESS | |
1848 | #ifdef CAUTIOUS | |
1849 | goto checkargs; | |
1850 | #endif | |
1851 | #endif | |
1852 | break; | |
1853 | #endif /* ifdef MEMOIZE_LOCALS */ | |
1854 | ||
1855 | ||
1856 | case scm_tcs_cons_gloc: | |
1857 | proc = SCM_GLOC_VAL (SCM_CAR (x)); | |
1858 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
1859 | #ifndef RECKLESS | |
1860 | #ifdef CAUTIOUS | |
1861 | goto checkargs; | |
1862 | #endif | |
1863 | #endif | |
1864 | break; | |
1865 | ||
1866 | ||
1867 | case scm_tcs_cons_nimcar: | |
1868 | if (SCM_SYMBOLP (SCM_CAR (x))) | |
1869 | { | |
1870 | proc = *scm_lookupcar (x, env); | |
1871 | if (SCM_IMP (proc)) | |
1872 | { | |
1873 | unmemocar (x, env); | |
1874 | goto badfun; | |
1875 | } | |
1876 | if (scm_tc16_macro == SCM_TYP16 (proc)) | |
1877 | { | |
1878 | unmemocar (x, env); | |
1879 | ||
1880 | handle_a_macro: | |
1881 | t.arg1 = SCM_APPLY (SCM_CDR (proc), x, scm_cons (env, scm_listofnull)); | |
1882 | switch ((int) (SCM_CAR (proc) >> 16)) | |
1883 | { | |
1884 | case 2: | |
1885 | if (scm_ilength (t.arg1) <= 0) | |
1886 | t.arg1 = scm_cons2 (SCM_IM_BEGIN, t.arg1, SCM_EOL); | |
6dbd0af5 MD |
1887 | #ifdef DEVAL |
1888 | if (!SCM_CLOSUREP (SCM_CDR (proc))) | |
1889 | { | |
1890 | #if 0 /* Top-level defines doesn't very often occur in backtraces */ | |
1891 | if (scm_m_define == SCM_SUBRF (SCM_CDR (proc)) && SCM_TOP_LEVEL (env)) | |
1892 | /* Prevent memoizing result of define macro */ | |
1893 | { | |
1894 | debug.info->e.exp = scm_cons (SCM_CAR (x), SCM_CDR (x)); | |
1895 | scm_set_source_properties_x (debug.info->e.exp, | |
1896 | scm_source_properties (x)); | |
1897 | } | |
1898 | #endif | |
1899 | SCM_DEFER_INTS; | |
1900 | SCM_CAR (x) = SCM_CAR (t.arg1); | |
1901 | SCM_CDR (x) = SCM_CDR (t.arg1); | |
1902 | SCM_ALLOW_INTS; | |
1903 | goto dispatch; | |
1904 | } | |
1905 | /* Prevent memoizing of debug info expression. */ | |
1906 | debug.info->e.exp = scm_cons (SCM_CAR (x), SCM_CDR (x)); | |
1907 | scm_set_source_properties_x (debug.info->e.exp, | |
1908 | scm_source_properties (x)); | |
1909 | #endif | |
0f2d19dd JB |
1910 | SCM_DEFER_INTS; |
1911 | SCM_CAR (x) = SCM_CAR (t.arg1); | |
1912 | SCM_CDR (x) = SCM_CDR (t.arg1); | |
1913 | SCM_ALLOW_INTS; | |
6dbd0af5 | 1914 | goto loopnoap; |
0f2d19dd JB |
1915 | case 1: |
1916 | if (SCM_NIMP (x = t.arg1)) | |
6dbd0af5 | 1917 | goto loopnoap; |
0f2d19dd JB |
1918 | case 0: |
1919 | RETURN (t.arg1); | |
1920 | } | |
1921 | } | |
1922 | } | |
1923 | else | |
1924 | proc = SCM_CEVAL (SCM_CAR (x), env); | |
1925 | SCM_ASRTGO (SCM_NIMP (proc), badfun); | |
1926 | #ifndef RECKLESS | |
1927 | #ifdef CAUTIOUS | |
1928 | checkargs: | |
1929 | #endif | |
1930 | if (SCM_CLOSUREP (proc)) | |
1931 | { | |
1932 | arg2 = SCM_CAR (SCM_CODE (proc)); | |
1933 | t.arg1 = SCM_CDR (x); | |
1934 | while (SCM_NIMP (arg2)) | |
1935 | { | |
1936 | if (SCM_NCONSP (arg2)) | |
1937 | goto evapply; | |
1938 | if (SCM_IMP (t.arg1)) | |
1939 | goto umwrongnumargs; | |
1940 | arg2 = SCM_CDR (arg2); | |
1941 | t.arg1 = SCM_CDR (t.arg1); | |
1942 | } | |
1943 | if (SCM_NNULLP (t.arg1)) | |
1944 | goto umwrongnumargs; | |
1945 | } | |
1946 | else if (scm_tc16_macro == SCM_TYP16 (proc)) | |
1947 | goto handle_a_macro; | |
1948 | #endif | |
1949 | } | |
1950 | ||
1951 | ||
6dbd0af5 MD |
1952 | evapply: |
1953 | PREP_APPLY (proc, SCM_EOL); | |
1954 | if (SCM_NULLP (SCM_CDR (x))) { | |
1955 | ENTER_APPLY; | |
0f2d19dd JB |
1956 | switch (SCM_TYP7 (proc)) |
1957 | { /* no arguments given */ | |
1958 | case scm_tc7_subr_0: | |
1959 | RETURN (SCM_SUBRF (proc) ()); | |
1960 | case scm_tc7_subr_1o: | |
1961 | RETURN (SCM_SUBRF (proc) (SCM_UNDEFINED)); | |
1962 | case scm_tc7_lsubr: | |
1963 | RETURN (SCM_SUBRF (proc) (SCM_EOL)); | |
1964 | case scm_tc7_rpsubr: | |
1965 | RETURN (SCM_BOOL_T); | |
1966 | case scm_tc7_asubr: | |
1967 | RETURN (SCM_SUBRF (proc) (SCM_UNDEFINED, SCM_UNDEFINED)); | |
6dbd0af5 | 1968 | #ifdef CCLO |
0f2d19dd JB |
1969 | case scm_tc7_cclo: |
1970 | t.arg1 = proc; | |
1971 | proc = SCM_CCLO_SUBR (proc); | |
6dbd0af5 MD |
1972 | #ifdef DEVAL |
1973 | debug.info->a.proc = proc; | |
1974 | debug.info->a.args = scm_cons (t.arg1, SCM_EOL); | |
1975 | #endif | |
0f2d19dd | 1976 | goto evap1; |
6dbd0af5 | 1977 | #endif |
0f2d19dd JB |
1978 | case scm_tcs_closures: |
1979 | x = SCM_CODE (proc); | |
1980 | env = EXTEND_SCM_ENV (SCM_CAR (x), SCM_EOL, SCM_ENV (proc)); | |
1981 | goto cdrxbegin; | |
1982 | case scm_tc7_contin: | |
1983 | case scm_tc7_subr_1: | |
1984 | case scm_tc7_subr_2: | |
1985 | case scm_tc7_subr_2o: | |
1986 | case scm_tc7_cxr: | |
1987 | case scm_tc7_subr_3: | |
1988 | case scm_tc7_lsubr_2: | |
1989 | umwrongnumargs: | |
1990 | unmemocar (x, env); | |
1991 | wrongnumargs: | |
1992 | scm_everr (x, env, proc, (char *) SCM_WNA, ""); | |
1993 | default: | |
1994 | /* handle macros here */ | |
1995 | goto badfun; | |
1996 | } | |
6dbd0af5 | 1997 | } |
0f2d19dd JB |
1998 | |
1999 | /* must handle macros by here */ | |
2000 | x = SCM_CDR (x); | |
2001 | #ifdef CAUTIOUS | |
2002 | if (SCM_IMP (x)) | |
2003 | goto wrongnumargs; | |
2004 | #endif | |
2005 | t.arg1 = EVALCAR (x, env); | |
6dbd0af5 MD |
2006 | #ifdef DEVAL |
2007 | debug.info->a.args = scm_cons (t.arg1, SCM_EOL); | |
2008 | #endif | |
0f2d19dd JB |
2009 | x = SCM_CDR (x); |
2010 | if (SCM_NULLP (x)) | |
2011 | { | |
6dbd0af5 | 2012 | ENTER_APPLY; |
0f2d19dd JB |
2013 | evap1: |
2014 | switch (SCM_TYP7 (proc)) | |
6dbd0af5 | 2015 | { /* have one argument in t.arg1 */ |
0f2d19dd JB |
2016 | case scm_tc7_subr_2o: |
2017 | RETURN (SCM_SUBRF (proc) (t.arg1, SCM_UNDEFINED)); | |
2018 | case scm_tc7_subr_1: | |
2019 | case scm_tc7_subr_1o: | |
2020 | RETURN (SCM_SUBRF (proc) (t.arg1)); | |
2021 | case scm_tc7_cxr: | |
2022 | #ifdef SCM_FLOATS | |
2023 | if (SCM_SUBRF (proc)) | |
2024 | { | |
2025 | if (SCM_INUMP (t.arg1)) | |
2026 | { | |
2027 | RETURN (scm_makdbl (SCM_DSUBRF (proc) ((double) SCM_INUM (t.arg1)), | |
2028 | 0.0)); | |
2029 | } | |
2030 | SCM_ASRTGO (SCM_NIMP (t.arg1), floerr); | |
2031 | if (SCM_REALP (t.arg1)) | |
2032 | { | |
2033 | RETURN (scm_makdbl (SCM_DSUBRF (proc) (SCM_REALPART (t.arg1)), 0.0)); | |
2034 | } | |
2035 | #ifdef SCM_BIGDIG | |
2036 | if (SCM_BIGP (t.arg1)) | |
2037 | { | |
2038 | RETURN (scm_makdbl (SCM_DSUBRF (proc) (scm_big2dbl (t.arg1)), 0.0)); | |
2039 | } | |
2040 | #endif | |
2041 | floerr: | |
2042 | scm_wta (t.arg1, (char *) SCM_ARG1, SCM_CHARS (SCM_SNAME (proc))); | |
2043 | } | |
2044 | #endif | |
2045 | proc = (SCM) SCM_SNAME (proc); | |
2046 | { | |
2047 | char *chrs = SCM_CHARS (proc) + SCM_LENGTH (proc) - 1; | |
2048 | while ('c' != *--chrs) | |
2049 | { | |
2050 | SCM_ASSERT (SCM_NIMP (t.arg1) && SCM_CONSP (t.arg1), | |
2051 | t.arg1, SCM_ARG1, SCM_CHARS (proc)); | |
2052 | t.arg1 = ('a' == *chrs) ? SCM_CAR (t.arg1) : SCM_CDR (t.arg1); | |
2053 | } | |
2054 | RETURN (t.arg1); | |
2055 | } | |
2056 | case scm_tc7_rpsubr: | |
2057 | RETURN (SCM_BOOL_T); | |
2058 | case scm_tc7_asubr: | |
2059 | RETURN (SCM_SUBRF (proc) (t.arg1, SCM_UNDEFINED)); | |
2060 | case scm_tc7_lsubr: | |
2061 | #ifdef DEVAL | |
6dbd0af5 | 2062 | RETURN (SCM_SUBRF (proc) (debug.info->a.args)) |
0f2d19dd JB |
2063 | #else |
2064 | RETURN (SCM_SUBRF (proc) (scm_cons (t.arg1, SCM_EOL))); | |
2065 | #endif | |
6dbd0af5 | 2066 | #ifdef CCLO |
0f2d19dd JB |
2067 | case scm_tc7_cclo: |
2068 | arg2 = t.arg1; | |
2069 | t.arg1 = proc; | |
2070 | proc = SCM_CCLO_SUBR (proc); | |
6dbd0af5 MD |
2071 | #ifdef DEVAL |
2072 | debug.info->a.args = scm_cons (t.arg1, debug.info->a.args); | |
2073 | debug.info->a.proc = proc; | |
2074 | #endif | |
0f2d19dd | 2075 | goto evap2; |
6dbd0af5 | 2076 | #endif |
0f2d19dd JB |
2077 | case scm_tcs_closures: |
2078 | x = SCM_CODE (proc); | |
2079 | #ifdef DEVAL | |
6dbd0af5 | 2080 | env = EXTEND_SCM_ENV (SCM_CAR (x), debug.info->a.args, SCM_ENV (proc)); |
0f2d19dd JB |
2081 | #else |
2082 | env = EXTEND_SCM_ENV (SCM_CAR (x), scm_cons (t.arg1, SCM_EOL), SCM_ENV (proc)); | |
2083 | #endif | |
2084 | goto cdrxbegin; | |
2085 | case scm_tc7_contin: | |
2086 | scm_call_continuation (proc, t.arg1); | |
2087 | case scm_tc7_subr_2: | |
2088 | case scm_tc7_subr_0: | |
2089 | case scm_tc7_subr_3: | |
2090 | case scm_tc7_lsubr_2: | |
2091 | goto wrongnumargs; | |
2092 | default: | |
2093 | goto badfun; | |
2094 | } | |
2095 | } | |
2096 | #ifdef CAUTIOUS | |
2097 | if (SCM_IMP (x)) | |
2098 | goto wrongnumargs; | |
2099 | #endif | |
2100 | { /* have two or more arguments */ | |
2101 | arg2 = EVALCAR (x, env); | |
6dbd0af5 MD |
2102 | #ifdef DEVAL |
2103 | debug.info->a.args = scm_cons2 (t.arg1, arg2, SCM_EOL); | |
2104 | #endif | |
0f2d19dd JB |
2105 | x = SCM_CDR (x); |
2106 | if (SCM_NULLP (x)) { | |
6dbd0af5 | 2107 | ENTER_APPLY; |
0f2d19dd JB |
2108 | #ifdef CCLO |
2109 | evap2: | |
2110 | #endif | |
6dbd0af5 MD |
2111 | switch (SCM_TYP7 (proc)) |
2112 | { /* have two arguments */ | |
2113 | case scm_tc7_subr_2: | |
2114 | case scm_tc7_subr_2o: | |
2115 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2)); | |
2116 | case scm_tc7_lsubr: | |
0f2d19dd | 2117 | #ifdef DEVAL |
6dbd0af5 MD |
2118 | RETURN (SCM_SUBRF (proc) (debug.info->a.args)) |
2119 | #else | |
2120 | RETURN (SCM_SUBRF (proc) (scm_cons2 (t.arg1, arg2, SCM_EOL))); | |
0f2d19dd | 2121 | #endif |
6dbd0af5 MD |
2122 | case scm_tc7_lsubr_2: |
2123 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, SCM_EOL)); | |
2124 | case scm_tc7_rpsubr: | |
2125 | case scm_tc7_asubr: | |
2126 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2)); | |
2127 | #ifdef CCLO | |
2128 | cclon: | |
2129 | case scm_tc7_cclo: | |
0f2d19dd | 2130 | #ifdef DEVAL |
6dbd0af5 MD |
2131 | RETURN (SCM_APPLY (SCM_CCLO_SUBR (proc), proc, |
2132 | scm_cons (debug.info->a.args, SCM_EOL))); | |
0f2d19dd | 2133 | #else |
6dbd0af5 MD |
2134 | RETURN (SCM_APPLY (SCM_CCLO_SUBR (proc), proc, |
2135 | scm_cons2 (t.arg1, arg2, | |
2136 | scm_cons (scm_eval_args (x, env), SCM_EOL)))); | |
0f2d19dd | 2137 | #endif |
6dbd0af5 MD |
2138 | /* case scm_tc7_cclo: |
2139 | x = scm_cons(arg2, scm_eval_args(x, env)); | |
2140 | arg2 = t.arg1; | |
2141 | t.arg1 = proc; | |
2142 | proc = SCM_CCLO_SUBR(proc); | |
2143 | goto evap3; */ | |
2144 | #endif | |
2145 | case scm_tc7_subr_0: | |
2146 | case scm_tc7_cxr: | |
2147 | case scm_tc7_subr_1o: | |
2148 | case scm_tc7_subr_1: | |
2149 | case scm_tc7_subr_3: | |
2150 | case scm_tc7_contin: | |
2151 | goto wrongnumargs; | |
2152 | default: | |
2153 | goto badfun; | |
2154 | case scm_tcs_closures: | |
0f2d19dd | 2155 | #ifdef DEVAL |
6dbd0af5 | 2156 | env = EXTEND_SCM_ENV (SCM_CAR (SCM_CODE (proc)), debug.info->a.args, SCM_ENV (proc)); |
0f2d19dd | 2157 | #else |
6dbd0af5 | 2158 | env = EXTEND_SCM_ENV (SCM_CAR (SCM_CODE (proc)), scm_cons2 (t.arg1, arg2, SCM_EOL), SCM_ENV (proc)); |
0f2d19dd | 2159 | #endif |
6dbd0af5 MD |
2160 | x = SCM_CODE (proc); |
2161 | goto cdrxbegin; | |
2162 | } | |
0f2d19dd JB |
2163 | } |
2164 | #ifdef DEVAL | |
6dbd0af5 MD |
2165 | debug.info->a.args = scm_cons2 (t.arg1, arg2, |
2166 | scm_deval_args (x, env, &SCM_CDR (SCM_CDR (debug.info->a.args)))); | |
0f2d19dd | 2167 | #endif |
6dbd0af5 MD |
2168 | ENTER_APPLY; |
2169 | switch (SCM_TYP7 (proc)) | |
2170 | { /* have 3 or more arguments */ | |
0f2d19dd | 2171 | #ifdef DEVAL |
6dbd0af5 MD |
2172 | case scm_tc7_subr_3: |
2173 | SCM_ASRTGO (SCM_NULLP (SCM_CDR (x)), wrongnumargs); | |
2174 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, SCM_CAR (SCM_CDR (SCM_CDR (debug.info->a.args))))); | |
2175 | case scm_tc7_asubr: | |
2176 | /* t.arg1 = SCM_SUBRF(proc)(t.arg1, arg2); | |
2177 | while SCM_NIMP(x) { | |
2178 | t.arg1 = SCM_SUBRF(proc)(t.arg1, EVALCAR(x, env)); | |
2179 | x = SCM_CDR(x); | |
2180 | } | |
2181 | RETURN (t.arg1) */ | |
2182 | case scm_tc7_rpsubr: | |
2183 | RETURN (SCM_APPLY (proc, t.arg1, scm_acons (arg2, SCM_CDR (SCM_CDR (debug.info->a.args)), SCM_EOL))) | |
2184 | case scm_tc7_lsubr_2: | |
2185 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, SCM_CDR (SCM_CDR (debug.info->a.args)))) | |
2186 | case scm_tc7_lsubr: | |
2187 | RETURN (SCM_SUBRF (proc) (debug.info->a.args)) | |
0f2d19dd | 2188 | #ifdef CCLO |
6dbd0af5 MD |
2189 | case scm_tc7_cclo: |
2190 | goto cclon; | |
0f2d19dd | 2191 | #endif |
6dbd0af5 MD |
2192 | case scm_tcs_closures: |
2193 | SETARGSREADY (debug); | |
2194 | env = EXTEND_SCM_ENV (SCM_CAR (SCM_CODE (proc)), | |
2195 | debug.info->a.args, | |
2196 | SCM_ENV (proc)); | |
2197 | x = SCM_CODE (proc); | |
2198 | goto cdrxbegin; | |
2199 | #else /* DEVAL */ | |
2200 | case scm_tc7_subr_3: | |
2201 | SCM_ASRTGO (SCM_NULLP (SCM_CDR (x)), wrongnumargs); | |
2202 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, EVALCAR (x, env))); | |
2203 | case scm_tc7_asubr: | |
2204 | /* t.arg1 = SCM_SUBRF(proc)(t.arg1, arg2); | |
2205 | while SCM_NIMP(x) { | |
2206 | t.arg1 = SCM_SUBRF(proc)(t.arg1, EVALCAR(x, env)); | |
2207 | x = SCM_CDR(x); | |
2208 | } | |
2209 | RETURN (t.arg1) */ | |
2210 | case scm_tc7_rpsubr: | |
2211 | RETURN (SCM_APPLY (proc, t.arg1, scm_acons (arg2, scm_eval_args (x, env), SCM_EOL))); | |
2212 | case scm_tc7_lsubr_2: | |
2213 | RETURN (SCM_SUBRF (proc) (t.arg1, arg2, scm_eval_args (x, env))); | |
2214 | case scm_tc7_lsubr: | |
2215 | RETURN (SCM_SUBRF (proc) (scm_cons2 (t.arg1, arg2, scm_eval_args (x, env)))); | |
0f2d19dd | 2216 | #ifdef CCLO |
6dbd0af5 MD |
2217 | case scm_tc7_cclo: |
2218 | goto cclon; | |
0f2d19dd | 2219 | #endif |
6dbd0af5 MD |
2220 | case scm_tcs_closures: |
2221 | #ifdef DEVAL | |
2222 | SETARGSREADY (debug); | |
2223 | #endif | |
2224 | env = EXTEND_SCM_ENV (SCM_CAR (SCM_CODE (proc)), | |
2225 | scm_cons2 (t.arg1, arg2, scm_eval_args (x, env)), | |
2226 | SCM_ENV (proc)); | |
2227 | x = SCM_CODE (proc); | |
2228 | goto cdrxbegin; | |
0f2d19dd | 2229 | #endif /* DEVAL */ |
6dbd0af5 MD |
2230 | case scm_tc7_subr_2: |
2231 | case scm_tc7_subr_1o: | |
2232 | case scm_tc7_subr_2o: | |
2233 | case scm_tc7_subr_0: | |
2234 | case scm_tc7_cxr: | |
2235 | case scm_tc7_subr_1: | |
2236 | case scm_tc7_contin: | |
2237 | goto wrongnumargs; | |
2238 | default: | |
2239 | goto badfun; | |
2240 | } | |
0f2d19dd JB |
2241 | } |
2242 | #ifdef DEVAL | |
6dbd0af5 MD |
2243 | exit: |
2244 | if (CHECK_EXIT) | |
2245 | if (EXIT_FRAME || (TRACE && TRACEDFRAMEP (debug))) | |
2246 | { | |
2247 | EXIT_FRAME = 0; | |
2248 | RESET_DEBUG_MODE; | |
2249 | CLEARTRACEDFRAME (debug); | |
2250 | if (CHEAPTRAPS) | |
2251 | t.arg1 = scm_make_debugobj ((scm_debug_frame *) &debug); | |
2252 | else | |
2253 | { | |
2254 | scm_make_cont (&t.arg1); | |
2255 | if (setjmp (SCM_JMPBUF (t.arg1))) | |
2256 | { | |
2257 | proc = SCM_THROW_VALUE (t.arg1); | |
2258 | goto ret; | |
2259 | } | |
2260 | } | |
2261 | scm_ithrow (scm_i_exit_frame, scm_cons2 (t.arg1, proc, SCM_EOL), 0); | |
2262 | } | |
2263 | ret: | |
2264 | last_debug_info_frame = debug.prev; | |
0f2d19dd JB |
2265 | return proc; |
2266 | #endif | |
2267 | } | |
2268 | ||
6dbd0af5 MD |
2269 | |
2270 | /* SECTION: This code is compiled once. | |
2271 | */ | |
2272 | ||
0f2d19dd JB |
2273 | #ifndef DEVAL |
2274 | ||
2275 | SCM_PROC(s_procedure_documentation, "procedure-documentation", 1, 0, 0, scm_procedure_documentation); | |
2276 | #ifdef __STDC__ | |
2277 | SCM | |
2278 | scm_procedure_documentation (SCM proc) | |
2279 | #else | |
2280 | SCM | |
2281 | scm_procedure_documentation (proc) | |
2282 | SCM proc; | |
2283 | #endif | |
2284 | { | |
2285 | SCM code; | |
2286 | SCM_ASSERT (SCM_BOOL_T == scm_procedure_p (proc) && SCM_NIMP (proc) && SCM_TYP7 (proc) != scm_tc7_contin, | |
2287 | proc, SCM_ARG1, s_procedure_documentation); | |
2288 | switch (SCM_TYP7 (proc)) | |
2289 | { | |
2290 | case scm_tcs_closures: | |
2291 | code = SCM_CDR (SCM_CODE (proc)); | |
2292 | if (SCM_IMP (SCM_CDR (code))) | |
2293 | return SCM_BOOL_F; | |
2294 | code = SCM_CAR (code); | |
2295 | if (SCM_IMP (code)) | |
2296 | return SCM_BOOL_F; | |
2297 | if (SCM_STRINGP (code)) | |
2298 | return code; | |
2299 | default: | |
2300 | return SCM_BOOL_F; | |
2301 | /* | |
2302 | case scm_tcs_subrs: | |
2303 | #ifdef CCLO | |
2304 | case scm_tc7_cclo: | |
2305 | #endif | |
2306 | */ | |
2307 | } | |
2308 | } | |
2309 | ||
2310 | /* This code is for scm_apply. it is destructive on multiple args. | |
2311 | * This will only screw you if you do (scm_apply scm_apply '( ... )) | |
2312 | */ | |
2313 | SCM_PROC(s_nconc2last, "apply:nconc2last", 1, 0, 0, scm_nconc2last); | |
2314 | #ifdef __STDC__ | |
2315 | SCM | |
2316 | scm_nconc2last (SCM lst) | |
2317 | #else | |
2318 | SCM | |
2319 | scm_nconc2last (lst) | |
2320 | SCM lst; | |
2321 | #endif | |
2322 | { | |
2323 | SCM *lloc; | |
2324 | if (SCM_EOL == lst) | |
2325 | return lst; | |
2326 | SCM_ASSERT (SCM_NIMP (lst) && SCM_CONSP (lst), lst, SCM_ARG1, s_nconc2last); | |
2327 | lloc = &lst; | |
2328 | while (SCM_NNULLP (SCM_CDR (*lloc))) | |
2329 | { | |
2330 | lloc = &SCM_CDR (*lloc); | |
2331 | SCM_ASSERT (SCM_NIMP (*lloc) && SCM_CONSP (*lloc), lst, SCM_ARG1, s_nconc2last); | |
2332 | } | |
2333 | *lloc = SCM_CAR (*lloc); | |
2334 | return lst; | |
2335 | } | |
2336 | ||
2337 | #endif /* !DEVAL */ | |
2338 | ||
6dbd0af5 MD |
2339 | |
2340 | /* SECTION: When DEVAL is defined this code yields scm_dapply. | |
2341 | * It is compiled twice. | |
2342 | */ | |
2343 | ||
0f2d19dd JB |
2344 | #if 0 |
2345 | #ifdef __STDC__ | |
2346 | SCM | |
2347 | scm_apply (SCM proc, SCM arg1, SCM args) | |
2348 | #else | |
2349 | SCM | |
2350 | scm_apply (proc, arg1, args) | |
2351 | SCM proc; | |
2352 | SCM arg1; | |
2353 | SCM args; | |
2354 | #endif | |
2355 | {} | |
2356 | #endif | |
2357 | ||
2358 | #if 0 | |
2359 | #ifdef __STDC__ | |
2360 | SCM | |
2361 | scm_dapply (SCM proc, SCM arg1, SCM args) | |
2362 | #else | |
2363 | SCM | |
2364 | scm_dapply (proc, arg1, args) | |
2365 | SCM proc; | |
2366 | SCM arg1; | |
2367 | SCM args; | |
2368 | #endif | |
2369 | {} | |
2370 | #endif | |
2371 | ||
0f2d19dd JB |
2372 | #ifdef __STDC__ |
2373 | SCM | |
2374 | SCM_APPLY (SCM proc, SCM arg1, SCM args) | |
2375 | #else | |
2376 | SCM | |
2377 | SCM_APPLY (proc, arg1, args) | |
2378 | SCM proc; | |
2379 | SCM arg1; | |
2380 | SCM args; | |
2381 | #endif | |
2382 | { | |
2383 | #ifdef DEBUG_EXTENSIONS | |
2384 | #ifdef DEVAL | |
6dbd0af5 MD |
2385 | scm_debug_frame debug; |
2386 | debug.prev = last_debug_info_frame; | |
2387 | debug.status = APPLYFRAME; | |
2388 | debug.vect[0].a.proc = proc; | |
2389 | debug.vect[0].a.args = SCM_EOL; | |
2390 | last_debug_info_frame = &debug; | |
0f2d19dd JB |
2391 | #else |
2392 | if (DEBUGGINGP) | |
2393 | return scm_dapply (proc, arg1, args); | |
2394 | #endif | |
2395 | #endif | |
2396 | ||
2397 | SCM_ASRTGO (SCM_NIMP (proc), badproc); | |
2398 | if (SCM_NULLP (args)) | |
2399 | { | |
2400 | if (SCM_NULLP (arg1)) | |
2401 | arg1 = SCM_UNDEFINED; | |
2402 | else | |
2403 | { | |
2404 | args = SCM_CDR (arg1); | |
2405 | arg1 = SCM_CAR (arg1); | |
2406 | } | |
2407 | } | |
2408 | else | |
2409 | { | |
2410 | /* SCM_ASRTGO(SCM_NIMP(args) && SCM_CONSP(args), wrongnumargs); */ | |
2411 | args = scm_nconc2last (args); | |
2412 | } | |
0f2d19dd | 2413 | #ifdef DEVAL |
6dbd0af5 MD |
2414 | debug.vect[0].a.args = scm_cons (arg1, args); |
2415 | if (ENTER_FRAME) | |
2416 | { | |
2417 | SCM tmp; | |
2418 | ENTER_FRAME = 0; | |
2419 | RESET_DEBUG_MODE; | |
2420 | if (CHEAPTRAPS) | |
2421 | tmp = scm_make_debugobj ((scm_debug_frame *) &debug); | |
2422 | else | |
2423 | { | |
2424 | scm_make_cont (&tmp); | |
2425 | if (setjmp (SCM_JMPBUF (tmp))) | |
2426 | goto entap; | |
2427 | } | |
2428 | scm_ithrow (scm_i_enter_frame, scm_cons (tmp, SCM_EOL), 0); | |
2429 | } | |
2430 | entap: | |
2431 | ENTER_APPLY; | |
2432 | #endif | |
2433 | #ifdef CCLO | |
2434 | tail: | |
0f2d19dd JB |
2435 | #endif |
2436 | switch (SCM_TYP7 (proc)) | |
2437 | { | |
2438 | case scm_tc7_subr_2o: | |
2439 | args = SCM_NULLP (args) ? SCM_UNDEFINED : SCM_CAR (args); | |
2440 | RETURN (SCM_SUBRF (proc) (arg1, args)) | |
2441 | case scm_tc7_subr_2: | |
2442 | SCM_ASRTGO (SCM_NULLP (SCM_CDR (args)), wrongnumargs); | |
2443 | args = SCM_CAR (args); | |
2444 | RETURN (SCM_SUBRF (proc) (arg1, args)) | |
2445 | case scm_tc7_subr_0: | |
2446 | SCM_ASRTGO (SCM_UNBNDP (arg1), wrongnumargs); | |
2447 | RETURN (SCM_SUBRF (proc) ()) | |
2448 | case scm_tc7_subr_1: | |
2449 | case scm_tc7_subr_1o: | |
2450 | SCM_ASRTGO (SCM_NULLP (args), wrongnumargs); | |
2451 | RETURN (SCM_SUBRF (proc) (arg1)) | |
2452 | case scm_tc7_cxr: | |
2453 | SCM_ASRTGO (SCM_NULLP (args), wrongnumargs); | |
2454 | #ifdef SCM_FLOATS | |
2455 | if (SCM_SUBRF (proc)) | |
2456 | { | |
6dbd0af5 MD |
2457 | if (SCM_INUMP (arg1)) |
2458 | { | |
2459 | RETURN (scm_makdbl (SCM_DSUBRF (proc) ((double) SCM_INUM (arg1)), 0.0)); | |
2460 | } | |
0f2d19dd | 2461 | SCM_ASRTGO (SCM_NIMP (arg1), floerr); |
6dbd0af5 MD |
2462 | if (SCM_REALP (arg1)) |
2463 | { | |
2464 | RETURN (scm_makdbl (SCM_DSUBRF (proc) (SCM_REALPART (arg1)), 0.0)); | |
2465 | } | |
0f2d19dd JB |
2466 | #ifdef SCM_BIGDIG |
2467 | if SCM_BIGP | |
2468 | (arg1) | |
2469 | RETURN (scm_makdbl (SCM_DSUBRF (proc) (scm_big2dbl (arg1)), 0.0)) | |
2470 | #endif | |
2471 | floerr: | |
2472 | scm_wta (arg1, (char *) SCM_ARG1, SCM_CHARS (SCM_SNAME (proc))); | |
2473 | } | |
2474 | #endif | |
2475 | proc = (SCM) SCM_SNAME (proc); | |
2476 | { | |
2477 | char *chrs = SCM_CHARS (proc) + SCM_LENGTH (proc) - 1; | |
2478 | while ('c' != *--chrs) | |
2479 | { | |
2480 | SCM_ASSERT (SCM_NIMP (arg1) && SCM_CONSP (arg1), | |
2481 | arg1, SCM_ARG1, SCM_CHARS (proc)); | |
2482 | arg1 = ('a' == *chrs) ? SCM_CAR (arg1) : SCM_CDR (arg1); | |
2483 | } | |
2484 | RETURN (arg1) | |
2485 | } | |
2486 | case scm_tc7_subr_3: | |
2487 | RETURN (SCM_SUBRF (proc) (arg1, SCM_CAR (args), SCM_CAR (SCM_CDR (args)))) | |
2488 | case scm_tc7_lsubr: | |
2489 | #ifdef DEVAL | |
6dbd0af5 | 2490 | RETURN (SCM_SUBRF (proc) (SCM_UNBNDP (arg1) ? SCM_EOL : debug.vect[0].a.args)) |
0f2d19dd JB |
2491 | #else |
2492 | RETURN (SCM_SUBRF (proc) (SCM_UNBNDP (arg1) ? SCM_EOL : scm_cons (arg1, args))) | |
2493 | #endif | |
2494 | case scm_tc7_lsubr_2: | |
2495 | SCM_ASRTGO (SCM_NIMP (args) && SCM_CONSP (args), wrongnumargs); | |
2496 | RETURN (SCM_SUBRF (proc) (arg1, SCM_CAR (args), SCM_CDR (args))) | |
2497 | case scm_tc7_asubr: | |
2498 | if (SCM_NULLP (args)) | |
2499 | RETURN (SCM_SUBRF (proc) (arg1, SCM_UNDEFINED)) | |
2500 | while (SCM_NIMP (args)) | |
2501 | { | |
2502 | SCM_ASSERT (SCM_CONSP (args), args, SCM_ARG2, "apply"); | |
2503 | arg1 = SCM_SUBRF (proc) (arg1, SCM_CAR (args)); | |
2504 | args = SCM_CDR (args); | |
2505 | } | |
2506 | RETURN (arg1); | |
2507 | case scm_tc7_rpsubr: | |
2508 | if (SCM_NULLP (args)) | |
2509 | RETURN (SCM_BOOL_T); | |
2510 | while (SCM_NIMP (args)) | |
2511 | { | |
2512 | SCM_ASSERT (SCM_CONSP (args), args, SCM_ARG2, "apply"); | |
2513 | if (SCM_FALSEP (SCM_SUBRF (proc) (arg1, SCM_CAR (args)))) | |
2514 | RETURN (SCM_BOOL_F); | |
2515 | arg1 = SCM_CAR (args); | |
2516 | args = SCM_CDR (args); | |
2517 | } | |
2518 | RETURN (SCM_BOOL_T); | |
2519 | case scm_tcs_closures: | |
2520 | #ifdef DEVAL | |
6dbd0af5 | 2521 | arg1 = (SCM_UNBNDP (arg1) ? SCM_EOL : debug.vect[0].a.args); |
0f2d19dd JB |
2522 | #else |
2523 | arg1 = (SCM_UNBNDP (arg1) ? SCM_EOL : scm_cons (arg1, args)); | |
2524 | #endif | |
2525 | #ifndef RECKLESS | |
2526 | if (scm_badargsp (SCM_CAR (SCM_CODE (proc)), arg1)) | |
2527 | goto wrongnumargs; | |
2528 | #endif | |
2529 | args = EXTEND_SCM_ENV (SCM_CAR (SCM_CODE (proc)), arg1, SCM_ENV (proc)); | |
2530 | proc = SCM_CODE (proc); | |
2531 | while (SCM_NNULLP (proc = SCM_CDR (proc))) | |
2532 | arg1 = EVALCAR (proc, args); | |
2533 | RETURN (arg1); | |
2534 | case scm_tc7_contin: | |
2535 | SCM_ASRTGO (SCM_NULLP (args), wrongnumargs); | |
2536 | scm_call_continuation (proc, arg1); | |
2537 | #ifdef CCLO | |
2538 | case scm_tc7_cclo: | |
2539 | #ifdef DEVAL | |
6dbd0af5 MD |
2540 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : debug.vect[0].a.args); |
2541 | arg1 = proc; | |
2542 | proc = SCM_CCLO_SUBR (proc); | |
2543 | debug.vect[0].a.proc = proc; | |
2544 | debug.vect[0].a.args = scm_cons (arg1, args); | |
0f2d19dd JB |
2545 | #else |
2546 | args = (SCM_UNBNDP(arg1) ? SCM_EOL : scm_cons (arg1, args)); | |
0f2d19dd JB |
2547 | arg1 = proc; |
2548 | proc = SCM_CCLO_SUBR (proc); | |
6dbd0af5 | 2549 | #endif |
0f2d19dd JB |
2550 | goto tail; |
2551 | #endif | |
2552 | wrongnumargs: | |
2553 | scm_wta (proc, (char *) SCM_WNA, "apply"); | |
2554 | default: | |
2555 | badproc: | |
2556 | scm_wta (proc, (char *) SCM_ARG1, "apply"); | |
2557 | RETURN (arg1); | |
2558 | } | |
2559 | #ifdef DEVAL | |
6dbd0af5 MD |
2560 | exit: |
2561 | if (CHECK_EXIT) | |
2562 | if (EXIT_FRAME || (TRACE && TRACEDFRAMEP (debug))) | |
2563 | { | |
2564 | EXIT_FRAME = 0; | |
2565 | RESET_DEBUG_MODE; | |
2566 | CLEARTRACEDFRAME (debug); | |
2567 | if (CHEAPTRAPS) | |
2568 | arg1 = scm_make_debugobj ((scm_debug_frame *) &debug); | |
2569 | else | |
2570 | { | |
2571 | scm_make_cont (&arg1); | |
2572 | if (setjmp (SCM_JMPBUF (arg1))) | |
2573 | { | |
2574 | proc = SCM_THROW_VALUE (arg1); | |
2575 | goto ret; | |
2576 | } | |
2577 | } | |
2578 | scm_ithrow (scm_i_exit_frame, scm_cons2 (arg1, proc, SCM_EOL), 0); | |
2579 | } | |
2580 | ret: | |
2581 | last_debug_info_frame = debug.prev; | |
0f2d19dd JB |
2582 | return proc; |
2583 | #endif | |
2584 | } | |
2585 | ||
6dbd0af5 MD |
2586 | |
2587 | /* SECTION: The rest of this file is only read once. | |
2588 | */ | |
2589 | ||
0f2d19dd JB |
2590 | #ifndef DEVAL |
2591 | ||
2592 | SCM_PROC(s_map, "map", 2, 0, 1, scm_map); | |
2593 | #ifdef __STDC__ | |
2594 | SCM | |
2595 | scm_map (SCM proc, SCM arg1, SCM args) | |
2596 | #else | |
2597 | SCM | |
2598 | scm_map (proc, arg1, args) | |
2599 | SCM proc; | |
2600 | SCM arg1; | |
2601 | SCM args; | |
2602 | #endif | |
2603 | { | |
2604 | long i; | |
2605 | SCM res = SCM_EOL; | |
2606 | SCM *pres = &res; | |
2607 | SCM *ve = &args; /* Keep args from being optimized away. */ | |
2608 | ||
2609 | if (SCM_NULLP (arg1)) | |
2610 | return res; | |
2611 | SCM_ASSERT (SCM_NIMP (arg1), arg1, SCM_ARG2, s_map); | |
2612 | if (SCM_NULLP (args)) | |
2613 | { | |
2614 | while (SCM_NIMP (arg1)) | |
2615 | { | |
2616 | SCM_ASSERT (SCM_CONSP (arg1), arg1, SCM_ARG2, s_map); | |
2617 | *pres = scm_cons (scm_apply (proc, SCM_CAR (arg1), scm_listofnull), SCM_EOL); | |
2618 | pres = &SCM_CDR (*pres); | |
2619 | arg1 = SCM_CDR (arg1); | |
2620 | } | |
2621 | return res; | |
2622 | } | |
2623 | args = scm_vector (scm_cons (arg1, args)); | |
2624 | ve = SCM_VELTS (args); | |
2625 | #ifndef RECKLESS | |
2626 | for (i = SCM_LENGTH (args) - 1; i >= 0; i--) | |
2627 | SCM_ASSERT (SCM_NIMP (ve[i]) && SCM_CONSP (ve[i]), args, SCM_ARG2, s_map); | |
2628 | #endif | |
2629 | while (1) | |
2630 | { | |
2631 | arg1 = SCM_EOL; | |
2632 | for (i = SCM_LENGTH (args) - 1; i >= 0; i--) | |
2633 | { | |
2634 | if SCM_IMP | |
2635 | (ve[i]) return res; | |
2636 | arg1 = scm_cons (SCM_CAR (ve[i]), arg1); | |
2637 | ve[i] = SCM_CDR (ve[i]); | |
2638 | } | |
2639 | *pres = scm_cons (scm_apply (proc, arg1, SCM_EOL), SCM_EOL); | |
2640 | pres = &SCM_CDR (*pres); | |
2641 | } | |
2642 | } | |
2643 | ||
2644 | ||
2645 | SCM_PROC(s_for_each, "for-each", 2, 0, 1, scm_for_each); | |
2646 | #ifdef __STDC__ | |
2647 | SCM | |
2648 | scm_for_each (SCM proc, SCM arg1, SCM args) | |
2649 | #else | |
2650 | SCM | |
2651 | scm_for_each (proc, arg1, args) | |
2652 | SCM proc; | |
2653 | SCM arg1; | |
2654 | SCM args; | |
2655 | #endif | |
2656 | { | |
2657 | SCM *ve = &args; /* Keep args from being optimized away. */ | |
2658 | long i; | |
2659 | if SCM_NULLP (arg1) | |
2660 | return SCM_UNSPECIFIED; | |
2661 | SCM_ASSERT (SCM_NIMP (arg1), arg1, SCM_ARG2, s_for_each); | |
2662 | if SCM_NULLP (args) | |
2663 | { | |
2664 | while SCM_NIMP (arg1) | |
2665 | { | |
2666 | SCM_ASSERT (SCM_CONSP (arg1), arg1, SCM_ARG2, s_for_each); | |
2667 | scm_apply (proc, SCM_CAR (arg1), scm_listofnull); | |
2668 | arg1 = SCM_CDR (arg1); | |
2669 | } | |
2670 | return SCM_UNSPECIFIED; | |
2671 | } | |
2672 | args = scm_vector (scm_cons (arg1, args)); | |
2673 | ve = SCM_VELTS (args); | |
2674 | #ifndef RECKLESS | |
2675 | for (i = SCM_LENGTH (args) - 1; i >= 0; i--) | |
2676 | SCM_ASSERT (SCM_NIMP (ve[i]) && SCM_CONSP (ve[i]), args, SCM_ARG2, s_for_each); | |
2677 | #endif | |
2678 | while (1) | |
2679 | { | |
2680 | arg1 = SCM_EOL; | |
2681 | for (i = SCM_LENGTH (args) - 1; i >= 0; i--) | |
2682 | { | |
2683 | if SCM_IMP | |
2684 | (ve[i]) return SCM_UNSPECIFIED; | |
2685 | arg1 = scm_cons (SCM_CAR (ve[i]), arg1); | |
2686 | ve[i] = SCM_CDR (ve[i]); | |
2687 | } | |
2688 | scm_apply (proc, arg1, SCM_EOL); | |
2689 | } | |
2690 | } | |
2691 | ||
2692 | ||
2693 | #ifdef __STDC__ | |
2694 | SCM | |
2695 | scm_closure (SCM code, SCM env) | |
2696 | #else | |
2697 | SCM | |
2698 | scm_closure (code, env) | |
2699 | SCM code; | |
2700 | SCM env; | |
2701 | #endif | |
2702 | { | |
2703 | register SCM z; | |
2704 | SCM_NEWCELL (z); | |
2705 | SCM_SETCODE (z, code); | |
2706 | SCM_ENV (z) = env; | |
2707 | return z; | |
2708 | } | |
2709 | ||
2710 | ||
2711 | long scm_tc16_promise; | |
2712 | #ifdef __STDC__ | |
2713 | SCM | |
2714 | scm_makprom (SCM code) | |
2715 | #else | |
2716 | SCM | |
2717 | scm_makprom (code) | |
2718 | SCM code; | |
2719 | #endif | |
2720 | { | |
2721 | register SCM z; | |
2722 | SCM_NEWCELL (z); | |
2723 | SCM_CDR (z) = code; | |
2724 | SCM_CAR (z) = scm_tc16_promise; | |
2725 | return z; | |
2726 | } | |
2727 | ||
2728 | ||
2729 | #ifdef __STDC__ | |
2730 | static int | |
2731 | prinprom (SCM exp, SCM port, int writing) | |
2732 | #else | |
2733 | static int | |
2734 | prinprom (exp, port, writing) | |
2735 | SCM exp; | |
2736 | SCM port; | |
2737 | int writing; | |
2738 | #endif | |
2739 | { | |
2740 | scm_gen_puts (scm_regular_string, "#<promise ", port); | |
2741 | scm_iprin1 (SCM_CDR (exp), port, writing); | |
2742 | scm_gen_putc ('>', port); | |
2743 | return !0; | |
2744 | } | |
2745 | ||
2746 | ||
2747 | SCM_PROC(s_makacro, "procedure->syntax", 1, 0, 0, scm_makacro); | |
2748 | #ifdef __STDC__ | |
2749 | SCM | |
2750 | scm_makacro (SCM code) | |
2751 | #else | |
2752 | SCM | |
2753 | scm_makacro (code) | |
2754 | SCM code; | |
2755 | #endif | |
2756 | { | |
2757 | register SCM z; | |
2758 | SCM_NEWCELL (z); | |
2759 | SCM_CDR (z) = code; | |
2760 | SCM_CAR (z) = scm_tc16_macro; | |
2761 | return z; | |
2762 | } | |
2763 | ||
2764 | ||
2765 | SCM_PROC(s_makmacro, "procedure->macro", 1, 0, 0, scm_makmacro); | |
2766 | #ifdef __STDC__ | |
2767 | SCM | |
2768 | scm_makmacro (SCM code) | |
2769 | #else | |
2770 | SCM | |
2771 | scm_makmacro (code) | |
2772 | SCM code; | |
2773 | #endif | |
2774 | { | |
2775 | register SCM z; | |
2776 | SCM_NEWCELL (z); | |
2777 | SCM_CDR (z) = code; | |
2778 | SCM_CAR (z) = scm_tc16_macro | (1L << 16); | |
2779 | return z; | |
2780 | } | |
2781 | ||
2782 | ||
2783 | SCM_PROC(s_makmmacro, "procedure->memoizing-macro", 1, 0, 0, scm_makmmacro); | |
2784 | #ifdef __STDC__ | |
2785 | SCM | |
2786 | scm_makmmacro (SCM code) | |
2787 | #else | |
2788 | SCM | |
2789 | scm_makmmacro (code) | |
2790 | SCM code; | |
2791 | #endif | |
2792 | { | |
2793 | register SCM z; | |
2794 | SCM_NEWCELL (z); | |
2795 | SCM_CDR (z) = code; | |
2796 | SCM_CAR (z) = scm_tc16_macro | (2L << 16); | |
2797 | return z; | |
2798 | } | |
2799 | ||
2800 | ||
2801 | #ifdef __STDC__ | |
2802 | static int | |
2803 | prinmacro (SCM exp, SCM port, int writing) | |
2804 | #else | |
2805 | static int | |
2806 | prinmacro (exp, port, writing) | |
2807 | SCM exp; | |
2808 | SCM port; | |
2809 | int writing; | |
2810 | #endif | |
2811 | { | |
2812 | if (SCM_CAR (exp) & (3L << 16)) | |
2813 | scm_gen_puts (scm_regular_string, "#<macro", port); | |
2814 | else | |
2815 | scm_gen_puts (scm_regular_string, "#<syntax", port); | |
2816 | if (SCM_CAR (exp) & (2L << 16)) | |
2817 | scm_gen_putc ('!', port); | |
2818 | scm_gen_putc (' ', port); | |
2819 | scm_iprin1 (SCM_CDR (exp), port, writing); | |
2820 | scm_gen_putc ('>', port); | |
2821 | return !0; | |
2822 | } | |
2823 | ||
2824 | SCM_PROC(s_force, "force", 1, 0, 0, scm_force); | |
2825 | #ifdef __STDC__ | |
2826 | SCM | |
2827 | scm_force (SCM x) | |
2828 | #else | |
2829 | SCM | |
2830 | scm_force (x) | |
2831 | SCM x; | |
2832 | #endif | |
2833 | { | |
2834 | SCM_ASSERT ((SCM_TYP16 (x) == scm_tc16_promise), x, SCM_ARG1, s_force); | |
2835 | if (!((1L << 16) & SCM_CAR (x))) | |
2836 | { | |
2837 | SCM ans = scm_apply (SCM_CDR (x), SCM_EOL, SCM_EOL); | |
2838 | if (!((1L << 16) & SCM_CAR (x))) | |
2839 | { | |
2840 | SCM_DEFER_INTS; | |
2841 | SCM_CDR (x) = ans; | |
2842 | SCM_CAR (x) |= (1L << 16); | |
2843 | SCM_ALLOW_INTS; | |
2844 | } | |
2845 | } | |
2846 | return SCM_CDR (x); | |
2847 | } | |
2848 | ||
2849 | SCM_PROC (s_promise_p, "promise?", 1, 0, 0, scm_promise_p); | |
2850 | #ifdef __STDC__ | |
2851 | SCM | |
2852 | scm_promise_p (SCM x) | |
2853 | #else | |
2854 | SCM | |
2855 | scm_promise_p (x) | |
2856 | SCM x; | |
2857 | #endif | |
2858 | { | |
2859 | return ((SCM_NIMP (x) && (SCM_TYP16 (x) == scm_tc16_promise)) | |
2860 | ? SCM_BOOL_T | |
2861 | : SCM_BOOL_F); | |
2862 | } | |
2863 | ||
2864 | SCM_PROC(s_copy_tree, "copy-tree", 1, 0, 0, scm_copy_tree); | |
2865 | #ifdef __STDC__ | |
2866 | SCM | |
2867 | scm_copy_tree (SCM obj) | |
2868 | #else | |
2869 | SCM | |
2870 | scm_copy_tree (obj) | |
2871 | SCM obj; | |
2872 | #endif | |
2873 | { | |
2874 | SCM ans, tl; | |
2875 | if SCM_IMP | |
2876 | (obj) return obj; | |
2877 | if (SCM_VECTORP (obj)) | |
2878 | { | |
2879 | scm_sizet i = SCM_LENGTH (obj); | |
2880 | ans = scm_make_vector (SCM_MAKINUM (i), SCM_UNSPECIFIED, SCM_UNDEFINED); | |
2881 | while (i--) | |
2882 | SCM_VELTS (ans)[i] = scm_copy_tree (SCM_VELTS (obj)[i]); | |
2883 | return ans; | |
2884 | } | |
2885 | if SCM_NCONSP (obj) | |
2886 | return obj; | |
2887 | /* return scm_cons(scm_copy_tree(SCM_CAR(obj)), scm_copy_tree(SCM_CDR(obj))); */ | |
2888 | ans = tl = scm_cons (scm_copy_tree (SCM_CAR (obj)), SCM_UNSPECIFIED); | |
2889 | while (SCM_NIMP (obj = SCM_CDR (obj)) && SCM_CONSP (obj)) | |
2890 | tl = (SCM_CDR (tl) = scm_cons (scm_copy_tree (SCM_CAR (obj)), SCM_UNSPECIFIED)); | |
2891 | SCM_CDR (tl) = obj; | |
2892 | return ans; | |
2893 | } | |
2894 | ||
2895 | #ifdef __STDC__ | |
2896 | SCM | |
2897 | scm_eval_3 (SCM obj, int copyp, SCM env) | |
2898 | #else | |
2899 | SCM | |
2900 | scm_eval_3 (obj, copyp, env) | |
2901 | SCM obj; | |
2902 | int copyp; | |
2903 | SCM env; | |
2904 | #endif | |
2905 | { | |
2906 | if (SCM_NIMP (SCM_CDR (scm_system_transformer))) | |
2907 | obj = scm_apply (SCM_CDR (scm_system_transformer), obj, scm_listofnull); | |
2908 | else if (copyp) | |
2909 | obj = scm_copy_tree (obj); | |
6dbd0af5 | 2910 | return XEVAL (obj, env); |
0f2d19dd JB |
2911 | } |
2912 | ||
2913 | #ifdef __STDC__ | |
2914 | SCM | |
2915 | scm_top_level_env (SCM thunk) | |
2916 | #else | |
2917 | SCM | |
2918 | scm_top_level_env (thunk) | |
2919 | SCM thunk; | |
2920 | #endif | |
2921 | { | |
2922 | if (SCM_IMP(thunk)) | |
2923 | return SCM_EOL; | |
2924 | else | |
2925 | return scm_cons(thunk, (SCM)SCM_EOL); | |
2926 | } | |
2927 | ||
2928 | SCM_PROC(s_eval2, "eval2", 2, 0, 0, scm_eval2); | |
2929 | #ifdef __STDC__ | |
2930 | SCM | |
2931 | scm_eval2 (SCM obj, SCM env_thunk) | |
2932 | #else | |
2933 | SCM | |
2934 | scm_eval2 (obj, env_thunk) | |
2935 | SCM obj; | |
2936 | SCM env_thunk; | |
2937 | #endif | |
2938 | { | |
2939 | return scm_eval_3 (obj, 1, scm_top_level_env(env_thunk)); | |
2940 | } | |
2941 | ||
2942 | SCM_PROC(s_eval, "eval", 1, 0, 0, scm_eval); | |
2943 | #ifdef __STDC__ | |
2944 | SCM | |
2945 | scm_eval (SCM obj) | |
2946 | #else | |
2947 | SCM | |
2948 | scm_eval (obj) | |
2949 | SCM obj; | |
2950 | #endif | |
2951 | { | |
2952 | return | |
2953 | scm_eval_3(obj, 1, scm_top_level_env(SCM_CDR(scm_top_level_lookup_thunk_var))); | |
2954 | } | |
2955 | ||
2956 | SCM_PROC(s_eval_x, "eval!", 1, 0, 0, scm_eval_x); | |
2957 | #ifdef __STDC__ | |
2958 | SCM | |
2959 | scm_eval_x (SCM obj) | |
2960 | #else | |
2961 | SCM | |
2962 | scm_eval_x (obj) | |
2963 | SCM obj; | |
2964 | #endif | |
2965 | { | |
2966 | return | |
2967 | scm_eval_3(obj, | |
2968 | 0, | |
2969 | scm_top_level_env (SCM_CDR (scm_top_level_lookup_thunk_var))); | |
2970 | } | |
2971 | ||
2972 | SCM_PROC (s_macro_eval_x, "macro-eval!", 2, 0, 0, scm_macro_eval_x); | |
2973 | #ifdef __STDC__ | |
2974 | SCM | |
2975 | scm_macro_eval_x (SCM exp, SCM env) | |
2976 | #else | |
2977 | SCM | |
2978 | scm_macro_eval_x (exp, env) | |
2979 | SCM exp; | |
2980 | SCM env; | |
2981 | #endif | |
2982 | { | |
2983 | return scm_eval_3 (exp, 0, env); | |
2984 | } | |
2985 | ||
2986 | #ifdef __STDC__ | |
2987 | SCM | |
2988 | scm_definedp (SCM x, SCM env) | |
2989 | #else | |
2990 | SCM | |
2991 | scm_definedp (x, env) | |
2992 | SCM x; | |
2993 | SCM env; | |
2994 | #endif | |
2995 | { | |
2996 | SCM proc = SCM_CAR (x = SCM_CDR (x)); | |
2997 | if (SCM_ISYMP (proc)) | |
2998 | return SCM_BOOL_T; | |
2999 | else if(SCM_IMP(proc) || !SCM_SYMBOLP(proc)) | |
3000 | return SCM_BOOL_F; | |
3001 | else | |
3002 | { | |
3003 | SCM vcell = scm_sym2vcell(proc, env_top_level(env), SCM_BOOL_F); | |
3004 | return (vcell == SCM_BOOL_F || SCM_UNBNDP(SCM_CDR(vcell))) ? SCM_BOOL_F : SCM_BOOL_T; | |
3005 | } | |
3006 | } | |
3007 | ||
3008 | static scm_smobfuns promsmob = | |
3009 | {scm_markcdr, scm_free0, prinprom}; | |
3010 | ||
3011 | static scm_smobfuns macrosmob = | |
3012 | {scm_markcdr, scm_free0, prinmacro}; | |
3013 | ||
3014 | #ifdef __STDC__ | |
3015 | SCM | |
3016 | scm_make_synt (char *name, SCM (*macroizer) (), SCM (*fcn) ()) | |
3017 | #else | |
3018 | SCM | |
3019 | scm_make_synt (name, macroizer, fcn) | |
3020 | char *name; | |
3021 | SCM (*macroizer) (); | |
3022 | SCM (*fcn) (); | |
3023 | #endif | |
3024 | { | |
3025 | SCM symcell = scm_sysintern (name, SCM_UNDEFINED); | |
3026 | long tmp = ((((SCM_CELLPTR) (SCM_CAR (symcell))) - scm_heap_org) << 8); | |
3027 | register SCM z; | |
3028 | if ((tmp >> 8) != ((SCM_CELLPTR) (SCM_CAR (symcell)) - scm_heap_org)) | |
3029 | tmp = 0; | |
3030 | SCM_NEWCELL (z); | |
3031 | SCM_SUBRF (z) = fcn; | |
3032 | SCM_CAR (z) = tmp + scm_tc7_subr_2; | |
3033 | SCM_CDR (symcell) = macroizer (z); | |
3034 | return SCM_CAR (symcell); | |
3035 | } | |
3036 | ||
6dbd0af5 MD |
3037 | |
3038 | /* At this point, scm_deval and scm_dapply are generated. | |
3039 | */ | |
3040 | ||
0f2d19dd | 3041 | #ifdef DEBUG_EXTENSIONS |
6dbd0af5 MD |
3042 | # define DEVAL |
3043 | # include "eval.c" | |
0f2d19dd JB |
3044 | #endif |
3045 | ||
3046 | ||
3047 | #ifdef __STDC__ | |
3048 | void | |
3049 | scm_init_eval (void) | |
3050 | #else | |
3051 | void | |
3052 | scm_init_eval () | |
3053 | #endif | |
3054 | { | |
0f2d19dd JB |
3055 | scm_tc16_promise = scm_newsmob (&promsmob); |
3056 | scm_tc16_macro = scm_newsmob (¯osmob); | |
3057 | scm_i_apply = scm_make_subr ("apply", scm_tc7_lsubr_2, scm_apply); | |
3058 | scm_system_transformer = scm_sysintern ("scm:eval-transformer", SCM_UNDEFINED); | |
3059 | scm_i_dot = SCM_CAR (scm_sysintern (".", SCM_UNDEFINED)); | |
3060 | scm_i_arrow = SCM_CAR (scm_sysintern ("=>", SCM_UNDEFINED)); | |
3061 | scm_i_else = SCM_CAR (scm_sysintern ("else", SCM_UNDEFINED)); | |
3062 | scm_i_unquote = SCM_CAR (scm_sysintern ("unquote", SCM_UNDEFINED)); | |
3063 | scm_i_uq_splicing = SCM_CAR (scm_sysintern ("unquote-splicing", SCM_UNDEFINED)); | |
3064 | ||
3065 | /* acros */ | |
3066 | scm_i_quasiquote = scm_make_synt (s_quasiquote, scm_makacro, scm_m_quasiquote); | |
6dbd0af5 | 3067 | scm_make_synt (s_undefine, scm_makacro, scm_m_undefine); |
0f2d19dd JB |
3068 | scm_make_synt (s_delay, scm_makacro, scm_m_delay); |
3069 | /* end of acros */ | |
3070 | ||
3071 | scm_top_level_lookup_thunk_var = | |
3072 | scm_sysintern("*top-level-lookup-thunk*", SCM_BOOL_F); | |
3073 | ||
6dbd0af5 MD |
3074 | scm_i_and = scm_make_synt ("and", scm_makmmacro, scm_m_and); |
3075 | scm_i_begin = scm_make_synt ("begin", scm_makmmacro, scm_m_begin); | |
3076 | scm_i_case = scm_make_synt ("case", scm_makmmacro, scm_m_case); | |
3077 | scm_i_cond = scm_make_synt ("cond", scm_makmmacro, scm_m_cond); | |
3078 | scm_i_define = scm_make_synt ("define", scm_makmmacro, scm_m_define); | |
3079 | scm_i_do = scm_make_synt ("do", scm_makmmacro, scm_m_do); | |
3080 | scm_i_if = scm_make_synt ("if", scm_makmmacro, scm_m_if); | |
0f2d19dd JB |
3081 | scm_i_lambda = scm_make_synt ("lambda", scm_makmmacro, scm_m_lambda); |
3082 | scm_i_let = scm_make_synt ("let", scm_makmmacro, scm_m_let); | |
6dbd0af5 MD |
3083 | scm_i_letrec = scm_make_synt ("letrec", scm_makmmacro, scm_m_letrec); |
3084 | scm_i_letstar = scm_make_synt ("let*", scm_makmmacro, scm_m_letstar); | |
3085 | scm_i_or = scm_make_synt ("or", scm_makmmacro, scm_m_or); | |
0f2d19dd | 3086 | scm_i_quote = scm_make_synt ("quote", scm_makmmacro, scm_m_quote); |
6dbd0af5 MD |
3087 | scm_i_set = scm_make_synt ("set!", scm_makmmacro, scm_m_set); |
3088 | scm_i_atapply = scm_make_synt ("@apply", scm_makmmacro, scm_m_apply); | |
3089 | scm_i_atcall_cc = scm_make_synt ("@call-with-current-continuation", | |
3090 | scm_makmmacro, scm_m_cont); | |
3091 | ||
0f2d19dd JB |
3092 | scm_make_synt ("defined?", scm_makmmacro, scm_definedp); |
3093 | scm_i_name = SCM_CAR (scm_sysintern ("name", SCM_UNDEFINED)); | |
3094 | scm_permanent_object (scm_i_name); | |
6dbd0af5 MD |
3095 | |
3096 | #ifdef DEBUG_EXTENSIONS | |
3097 | scm_i_enter_frame = SCM_CAR (scm_sysintern ("enter-frame", SCM_UNDEFINED)); | |
3098 | scm_i_apply_frame = SCM_CAR (scm_sysintern ("apply-frame", SCM_UNDEFINED)); | |
3099 | scm_i_exit_frame = SCM_CAR (scm_sysintern ("exit-frame", SCM_UNDEFINED)); | |
3100 | scm_i_trace = SCM_CAR (scm_sysintern ("trace", SCM_UNDEFINED)); | |
3101 | #endif | |
3102 | ||
0f2d19dd JB |
3103 | #include "eval.x" |
3104 | } | |
0f2d19dd | 3105 | |
6dbd0af5 | 3106 | #endif /* !DEVAL */ |