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68baa7e7 | 1 | /* Debugging extensions for Guile |
b3d7f6df | 2 | * Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003 Free Software Foundation |
ee340120 | 3 | * |
73be1d9e MV |
4 | * This library is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Lesser General Public | |
6 | * License as published by the Free Software Foundation; either | |
7 | * version 2.1 of the License, or (at your option) any later version. | |
ee340120 | 8 | * |
73be1d9e | 9 | * This library is distributed in the hope that it will be useful, |
ee340120 | 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
73be1d9e MV |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. | |
ee340120 | 13 | * |
73be1d9e MV |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
17 | */ | |
f0e9217a | 18 | |
1bbd0b84 GB |
19 | |
20 | ||
a0599745 MD |
21 | #include "libguile/_scm.h" |
22 | #include "libguile/eval.h" | |
37c56aec | 23 | #include "libguile/list.h" |
a0599745 MD |
24 | #include "libguile/stackchk.h" |
25 | #include "libguile/throw.h" | |
26 | #include "libguile/macros.h" | |
27 | #include "libguile/smob.h" | |
28 | #include "libguile/procprop.h" | |
29 | #include "libguile/srcprop.h" | |
30 | #include "libguile/alist.h" | |
31 | #include "libguile/continuations.h" | |
32 | #include "libguile/strports.h" | |
33 | #include "libguile/read.h" | |
34 | #include "libguile/feature.h" | |
35 | #include "libguile/dynwind.h" | |
36 | #include "libguile/modules.h" | |
37 | #include "libguile/ports.h" | |
38 | #include "libguile/root.h" | |
b06a8b87 | 39 | #include "libguile/fluids.h" |
b3d7f6df | 40 | #include "libguile/objects.h" |
a0599745 MD |
41 | |
42 | #include "libguile/validate.h" | |
43 | #include "libguile/debug.h" | |
f0e9217a MD |
44 | \f |
45 | ||
46 | /* {Run time control of the debugging evaluator} | |
47 | */ | |
48 | ||
a1ec6916 | 49 | SCM_DEFINE (scm_debug_options, "debug-options-interface", 0, 1, 0, |
1bbd0b84 | 50 | (SCM setting), |
ba94f79e MG |
51 | "Option interface for the debug options. Instead of using\n" |
52 | "this procedure directly, use the procedures @code{debug-enable},\n" | |
3939e9df | 53 | "@code{debug-disable}, @code{debug-set!} and @code{debug-options}.") |
1bbd0b84 | 54 | #define FUNC_NAME s_scm_debug_options |
f0e9217a MD |
55 | { |
56 | SCM ans; | |
57 | SCM_DEFER_INTS; | |
8505e285 | 58 | ans = scm_options (setting, scm_debug_opts, SCM_N_DEBUG_OPTIONS, FUNC_NAME); |
5e8d7fd4 | 59 | if (!(1 <= SCM_N_FRAMES && SCM_N_FRAMES <= SCM_MAX_FRAME_SIZE)) |
f0e9217a | 60 | { |
1bbd0b84 | 61 | scm_options (ans, scm_debug_opts, SCM_N_DEBUG_OPTIONS, FUNC_NAME); |
1e76143f | 62 | SCM_OUT_OF_RANGE (1, setting); |
f0e9217a | 63 | } |
5e8d7fd4 | 64 | SCM_RESET_DEBUG_MODE; |
a6e350dd | 65 | scm_stack_checking_enabled_p = SCM_STACK_CHECKING_P; |
5e8d7fd4 | 66 | scm_debug_eframe_size = 2 * SCM_N_FRAMES; |
bfc69694 | 67 | SCM_ALLOW_INTS; |
f0e9217a MD |
68 | return ans; |
69 | } | |
1bbd0b84 | 70 | #undef FUNC_NAME |
260b1416 MD |
71 | |
72 | static void | |
73 | with_traps_before (void *data) | |
74 | { | |
75 | int *trap_flag = data; | |
76 | *trap_flag = SCM_TRAPS_P; | |
77 | SCM_TRAPS_P = 1; | |
78 | } | |
79 | ||
80 | static void | |
81 | with_traps_after (void *data) | |
82 | { | |
83 | int *trap_flag = data; | |
84 | SCM_TRAPS_P = *trap_flag; | |
85 | } | |
86 | ||
87 | static SCM | |
88 | with_traps_inner (void *data) | |
89 | { | |
451e591c | 90 | SCM thunk = SCM_PACK (data); |
fdc28395 | 91 | return scm_call_0 (thunk); |
260b1416 | 92 | } |
1cc91f1b | 93 | |
a1ec6916 | 94 | SCM_DEFINE (scm_with_traps, "with-traps", 1, 0, 0, |
1bbd0b84 | 95 | (SCM thunk), |
ba94f79e | 96 | "Call @var{thunk} with traps enabled.") |
1bbd0b84 | 97 | #define FUNC_NAME s_scm_with_traps |
f0e9217a | 98 | { |
260b1416 | 99 | int trap_flag; |
34d19ef6 | 100 | SCM_VALIDATE_THUNK (1, thunk); |
260b1416 MD |
101 | return scm_internal_dynamic_wind (with_traps_before, |
102 | with_traps_inner, | |
103 | with_traps_after, | |
451e591c | 104 | (void *) SCM_UNPACK (thunk), |
260b1416 | 105 | &trap_flag); |
f0e9217a | 106 | } |
1bbd0b84 | 107 | #undef FUNC_NAME |
f0e9217a MD |
108 | |
109 | \f | |
85db4a2c DH |
110 | |
111 | SCM_SYMBOL (scm_sym_procname, "procname"); | |
112 | SCM_SYMBOL (scm_sym_dots, "..."); | |
113 | SCM_SYMBOL (scm_sym_source, "source"); | |
f0e9217a MD |
114 | |
115 | /* {Memoized Source} | |
116 | */ | |
117 | ||
92c2555f | 118 | scm_t_bits scm_tc16_memoized; |
1cc91f1b | 119 | |
f0e9217a | 120 | static int |
e841c3e0 | 121 | memoized_print (SCM obj, SCM port, scm_print_state *pstate) |
f0e9217a | 122 | { |
9882ea19 | 123 | int writingp = SCM_WRITINGP (pstate); |
b7f3516f | 124 | scm_puts ("#<memoized ", port); |
9882ea19 | 125 | SCM_SET_WRITINGP (pstate, 1); |
33b97402 MD |
126 | #ifdef GUILE_DEBUG |
127 | scm_iprin1 (SCM_MEMOIZED_EXP (obj), port, pstate); | |
128 | #else | |
9882ea19 | 129 | scm_iprin1 (scm_unmemoize (obj), port, pstate); |
33b97402 | 130 | #endif |
9882ea19 | 131 | SCM_SET_WRITINGP (pstate, writingp); |
b7f3516f | 132 | scm_putc ('>', port); |
f0e9217a MD |
133 | return 1; |
134 | } | |
135 | ||
a1ec6916 | 136 | SCM_DEFINE (scm_memoized_p, "memoized?", 1, 0, 0, |
1bbd0b84 | 137 | (SCM obj), |
ba94f79e | 138 | "Return @code{#t} if @var{obj} is memoized.") |
1bbd0b84 | 139 | #define FUNC_NAME s_scm_memoized_p |
f0e9217a | 140 | { |
0c95b57d | 141 | return SCM_BOOL(SCM_MEMOIZEDP (obj)); |
f0e9217a | 142 | } |
1bbd0b84 | 143 | #undef FUNC_NAME |
f0e9217a | 144 | |
f0e9217a | 145 | SCM |
1bbd0b84 | 146 | scm_make_memoized (SCM exp, SCM env) |
f0e9217a | 147 | { |
6c179711 | 148 | /* *fixme* Check that env is a valid environment. */ |
f0e9217a | 149 | register SCM z, ans; |
f83e2737 | 150 | SCM_ENTER_A_SECTION; |
cffcab30 DH |
151 | SCM_NEWSMOB (z, SCM_UNPACK (exp), SCM_UNPACK (env)); |
152 | SCM_NEWSMOB (ans, scm_tc16_memoized, SCM_UNPACK (z)); | |
f83e2737 | 153 | SCM_EXIT_A_SECTION; |
f0e9217a MD |
154 | return ans; |
155 | } | |
156 | ||
33b97402 MD |
157 | #ifdef GUILE_DEBUG |
158 | /* | |
159 | * Some primitives for construction of memoized code | |
160 | * | |
161 | * - procedure: memcons CAR CDR [ENV] | |
162 | * | |
163 | * Construct a pair, encapsulated in a memoized object. | |
164 | * | |
165 | * The CAR and CDR can be either normal or memoized. If ENV isn't | |
166 | * specified, the top-level environment of the current module will | |
167 | * be assumed. All environments must match. | |
168 | * | |
33b97402 MD |
169 | * - procedure: make-iloc FRAME BINDING CDRP |
170 | * | |
171 | * Return an iloc referring to frame no. FRAME, binding | |
172 | * no. BINDING. If CDRP is non-#f, the iloc is referring to a | |
173 | * frame consisting of a single pair, with the value stored in the | |
174 | * CDR. | |
175 | * | |
176 | * - procedure: iloc? OBJECT | |
177 | * | |
178 | * Return #t if OBJECT is an iloc. | |
179 | * | |
180 | * - procedure: mem->proc MEMOIZED | |
181 | * | |
182 | * Construct a closure from the memoized lambda expression MEMOIZED | |
183 | * | |
184 | * WARNING! The code is not copied! | |
185 | * | |
186 | * - procedure: proc->mem CLOSURE | |
187 | * | |
188 | * Turn the closure CLOSURE into a memoized object. | |
189 | * | |
190 | * WARNING! The code is not copied! | |
191 | * | |
192 | * - constant: SCM_IM_AND | |
193 | * - constant: SCM_IM_BEGIN | |
194 | * - constant: SCM_IM_CASE | |
195 | * - constant: SCM_IM_COND | |
196 | * - constant: SCM_IM_DO | |
197 | * - constant: SCM_IM_IF | |
198 | * - constant: SCM_IM_LAMBDA | |
199 | * - constant: SCM_IM_LET | |
200 | * - constant: SCM_IM_LETSTAR | |
201 | * - constant: SCM_IM_LETREC | |
202 | * - constant: SCM_IM_OR | |
203 | * - constant: SCM_IM_QUOTE | |
204 | * - constant: SCM_IM_SET | |
205 | * - constant: SCM_IM_DEFINE | |
206 | * - constant: SCM_IM_APPLY | |
207 | * - constant: SCM_IM_CONT | |
bbab09f6 | 208 | * - constant: SCM_IM_DISPATCH |
33b97402 MD |
209 | */ |
210 | ||
a0599745 MD |
211 | #include "libguile/variable.h" |
212 | #include "libguile/procs.h" | |
33b97402 | 213 | |
a1ec6916 | 214 | SCM_DEFINE (scm_make_iloc, "make-iloc", 3, 0, 0, |
1bbd0b84 | 215 | (SCM frame, SCM binding, SCM cdrp), |
ba94f79e MG |
216 | "Return a new iloc with frame offset @var{frame}, binding\n" |
217 | "offset @var{binding} and the cdr flag @var{cdrp}.") | |
1bbd0b84 | 218 | #define FUNC_NAME s_scm_make_iloc |
33b97402 | 219 | { |
34d19ef6 HWN |
220 | SCM_VALIDATE_INUM (1, frame); |
221 | SCM_VALIDATE_INUM (2, binding); | |
4ba5f279 MD |
222 | return SCM_MAKE_ILOC (SCM_INUM (frame), |
223 | SCM_INUM (binding), | |
224 | !SCM_FALSEP (cdrp)); | |
33b97402 | 225 | } |
1bbd0b84 | 226 | #undef FUNC_NAME |
33b97402 | 227 | |
a1ec6916 | 228 | SCM_DEFINE (scm_iloc_p, "iloc?", 1, 0, 0, |
1bbd0b84 | 229 | (SCM obj), |
ba94f79e | 230 | "Return @code{#t} if @var{obj} is an iloc.") |
0f981281 | 231 | #define FUNC_NAME s_scm_iloc_p |
33b97402 | 232 | { |
1bbd0b84 | 233 | return SCM_BOOL(SCM_ILOCP (obj)); |
33b97402 | 234 | } |
1bbd0b84 | 235 | #undef FUNC_NAME |
33b97402 | 236 | |
a1ec6916 | 237 | SCM_DEFINE (scm_memcons, "memcons", 2, 1, 0, |
1bbd0b84 | 238 | (SCM car, SCM cdr, SCM env), |
ba94f79e MG |
239 | "Return a new memoized cons cell with @var{car} and @var{cdr}\n" |
240 | "as members and @var{env} as the environment.") | |
1bbd0b84 | 241 | #define FUNC_NAME s_scm_memcons |
33b97402 | 242 | { |
0c95b57d | 243 | if (SCM_MEMOIZEDP (car)) |
33b97402 MD |
244 | { |
245 | /*fixme* environments may be two different but equal top-level envs */ | |
246 | if (!SCM_UNBNDP (env) && SCM_MEMOIZED_ENV (car) != env) | |
e8e9b690 | 247 | SCM_MISC_ERROR ("environment mismatch arg1 <-> arg3", |
37c56aec | 248 | scm_list_2 (car, env)); |
33b97402 MD |
249 | else |
250 | env = SCM_MEMOIZED_ENV (car); | |
251 | car = SCM_MEMOIZED_EXP (car); | |
252 | } | |
0c95b57d | 253 | if (SCM_MEMOIZEDP (cdr)) |
33b97402 MD |
254 | { |
255 | if (!SCM_UNBNDP (env) && SCM_MEMOIZED_ENV (cdr) != env) | |
e8e9b690 | 256 | SCM_MISC_ERROR ("environment mismatch arg2 <-> arg3", |
37c56aec | 257 | scm_list_2 (cdr, env)); |
33b97402 MD |
258 | else |
259 | env = SCM_MEMOIZED_ENV (cdr); | |
260 | cdr = SCM_MEMOIZED_EXP (cdr); | |
261 | } | |
262 | if (SCM_UNBNDP (env)) | |
7e73eaee | 263 | env = scm_top_level_env (SCM_TOP_LEVEL_LOOKUP_CLOSURE); |
33b97402 | 264 | else |
34d19ef6 | 265 | SCM_VALIDATE_NULLORCONS (3, env); |
33b97402 MD |
266 | return scm_make_memoized (scm_cons (car, cdr), env); |
267 | } | |
1bbd0b84 | 268 | #undef FUNC_NAME |
33b97402 | 269 | |
a1ec6916 | 270 | SCM_DEFINE (scm_mem_to_proc, "mem->proc", 1, 0, 0, |
1bbd0b84 | 271 | (SCM obj), |
ba94f79e MG |
272 | "Convert a memoized object (which must be a lambda expression)\n" |
273 | "to a procedure.") | |
1bbd0b84 | 274 | #define FUNC_NAME s_scm_mem_to_proc |
33b97402 MD |
275 | { |
276 | SCM env; | |
34d19ef6 | 277 | SCM_VALIDATE_MEMOIZED (1, obj); |
33b97402 MD |
278 | env = SCM_MEMOIZED_ENV (obj); |
279 | obj = SCM_MEMOIZED_EXP (obj); | |
aa5e5d63 | 280 | if (!SCM_CONSP (obj) || !SCM_EQ_P (SCM_CAR (obj), SCM_IM_LAMBDA)) |
37c56aec | 281 | SCM_MISC_ERROR ("expected lambda expression", scm_list_1 (obj)); |
33b97402 MD |
282 | return scm_closure (SCM_CDR (obj), env); |
283 | } | |
1bbd0b84 | 284 | #undef FUNC_NAME |
33b97402 | 285 | |
a1ec6916 | 286 | SCM_DEFINE (scm_proc_to_mem, "proc->mem", 1, 0, 0, |
1bbd0b84 | 287 | (SCM obj), |
ba94f79e | 288 | "Convert a procedure to a memoized object.") |
1bbd0b84 | 289 | #define FUNC_NAME s_scm_proc_to_mem |
33b97402 | 290 | { |
5623a9b4 | 291 | SCM_VALIDATE_CLOSURE (1, obj); |
33b97402 MD |
292 | return scm_make_memoized (scm_cons (SCM_IM_LAMBDA, SCM_CODE (obj)), |
293 | SCM_ENV (obj)); | |
294 | } | |
1bbd0b84 | 295 | #undef FUNC_NAME |
33b97402 MD |
296 | |
297 | #endif /* GUILE_DEBUG */ | |
298 | ||
a1ec6916 | 299 | SCM_DEFINE (scm_unmemoize, "unmemoize", 1, 0, 0, |
1bbd0b84 | 300 | (SCM m), |
ba94f79e | 301 | "Unmemoize the memoized expression @var{m},") |
1bbd0b84 | 302 | #define FUNC_NAME s_scm_unmemoize |
f0e9217a | 303 | { |
34d19ef6 | 304 | SCM_VALIDATE_MEMOIZED (1, m); |
bfe3154c | 305 | return scm_unmemocopy (SCM_MEMOIZED_EXP (m), SCM_MEMOIZED_ENV (m)); |
f0e9217a | 306 | } |
1bbd0b84 | 307 | #undef FUNC_NAME |
f0e9217a | 308 | |
a1ec6916 | 309 | SCM_DEFINE (scm_memoized_environment, "memoized-environment", 1, 0, 0, |
1bbd0b84 | 310 | (SCM m), |
ba94f79e | 311 | "Return the environment of the memoized expression @var{m}.") |
1bbd0b84 | 312 | #define FUNC_NAME s_scm_memoized_environment |
f0e9217a | 313 | { |
34d19ef6 | 314 | SCM_VALIDATE_MEMOIZED (1, m); |
bfe3154c | 315 | return SCM_MEMOIZED_ENV (m); |
f0e9217a | 316 | } |
1bbd0b84 | 317 | #undef FUNC_NAME |
f0e9217a | 318 | |
a1ec6916 | 319 | SCM_DEFINE (scm_procedure_name, "procedure-name", 1, 0, 0, |
1bbd0b84 | 320 | (SCM proc), |
ba94f79e | 321 | "Return the name of the procedure @var{proc}") |
1bbd0b84 | 322 | #define FUNC_NAME s_scm_procedure_name |
f0e9217a | 323 | { |
34d19ef6 | 324 | SCM_VALIDATE_PROC (1, proc); |
f0e9217a | 325 | switch (SCM_TYP7 (proc)) { |
a726dd9d MD |
326 | case scm_tcs_subrs: |
327 | return SCM_SNAME (proc); | |
328 | default: | |
f0e9217a | 329 | { |
63c51b9a | 330 | SCM name = scm_procedure_property (proc, scm_sym_name); |
f0e9217a | 331 | #if 0 |
63c51b9a | 332 | /* Source property scm_sym_procname not implemented yet... */ |
f9450cdb | 333 | SCM name = scm_source_property (SCM_CAR (SCM_CLOSURE_BODY (proc)), scm_sym_procname); |
f0e9217a | 334 | if (SCM_FALSEP (name)) |
63c51b9a | 335 | name = scm_procedure_property (proc, scm_sym_name); |
f0e9217a | 336 | #endif |
c75512d6 MD |
337 | if (SCM_FALSEP (name) && SCM_CLOSUREP (proc)) |
338 | name = scm_reverse_lookup (SCM_ENV (proc), proc); | |
f0e9217a MD |
339 | return name; |
340 | } | |
f0e9217a MD |
341 | } |
342 | } | |
1bbd0b84 | 343 | #undef FUNC_NAME |
f0e9217a | 344 | |
a1ec6916 | 345 | SCM_DEFINE (scm_procedure_source, "procedure-source", 1, 0, 0, |
1bbd0b84 | 346 | (SCM proc), |
ba94f79e | 347 | "Return the source of the procedure @var{proc}.") |
1bbd0b84 | 348 | #define FUNC_NAME s_scm_procedure_source |
f0e9217a | 349 | { |
34d19ef6 | 350 | SCM_VALIDATE_NIM (1, proc); |
b3d7f6df | 351 | again: |
f0e9217a MD |
352 | switch (SCM_TYP7 (proc)) { |
353 | case scm_tcs_closures: | |
354 | { | |
4daecfee | 355 | SCM formals = SCM_CLOSURE_FORMALS (proc); |
f9450cdb | 356 | SCM src = scm_source_property (SCM_CLOSURE_BODY (proc), scm_sym_copy); |
4daecfee DH |
357 | if (!SCM_FALSEP (src)) |
358 | return scm_cons2 (scm_sym_lambda, formals, src); | |
63c51b9a | 359 | return scm_cons (scm_sym_lambda, |
4daecfee DH |
360 | scm_unmemocopy (SCM_CODE (proc), |
361 | SCM_EXTEND_ENV (formals, | |
362 | SCM_EOL, | |
363 | SCM_ENV (proc)))); | |
f0e9217a | 364 | } |
b3d7f6df MD |
365 | case scm_tcs_struct: |
366 | if (!SCM_I_OPERATORP (proc)) | |
367 | break; | |
368 | goto procprop; | |
369 | case scm_tc7_smob: | |
370 | if (!SCM_SMOB_DESCRIPTOR (proc).apply) | |
371 | break; | |
f0e9217a MD |
372 | case scm_tcs_subrs: |
373 | #ifdef CCLO | |
374 | case scm_tc7_cclo: | |
375 | #endif | |
b3d7f6df | 376 | procprop: |
f0e9217a MD |
377 | /* It would indeed be a nice thing if we supplied source even for |
378 | built in procedures! */ | |
63c51b9a | 379 | return scm_procedure_property (proc, scm_sym_source); |
b3d7f6df MD |
380 | case scm_tc7_pws: |
381 | { | |
382 | SCM src = scm_procedure_property (proc, scm_sym_source); | |
383 | if (!SCM_FALSEP (src)) | |
384 | return src; | |
385 | proc = SCM_PROCEDURE (proc); | |
386 | goto again; | |
387 | } | |
f0e9217a | 388 | default: |
b3d7f6df | 389 | ; |
f0e9217a | 390 | } |
b3d7f6df MD |
391 | SCM_WRONG_TYPE_ARG (1, proc); |
392 | return SCM_BOOL_F; /* not reached */ | |
f0e9217a | 393 | } |
1bbd0b84 | 394 | #undef FUNC_NAME |
f0e9217a | 395 | |
a1ec6916 | 396 | SCM_DEFINE (scm_procedure_environment, "procedure-environment", 1, 0, 0, |
1bbd0b84 | 397 | (SCM proc), |
ba94f79e | 398 | "Return the environment of the procedure @var{proc}.") |
1bbd0b84 | 399 | #define FUNC_NAME s_scm_procedure_environment |
f0e9217a | 400 | { |
34d19ef6 | 401 | SCM_VALIDATE_NIM (1, proc); |
f0e9217a MD |
402 | switch (SCM_TYP7 (proc)) { |
403 | case scm_tcs_closures: | |
404 | return SCM_ENV (proc); | |
f0e9217a MD |
405 | case scm_tcs_subrs: |
406 | #ifdef CCLO | |
407 | case scm_tc7_cclo: | |
408 | #endif | |
409 | return SCM_EOL; | |
410 | default: | |
276dd677 DH |
411 | SCM_WRONG_TYPE_ARG (1, proc); |
412 | /* not reached */ | |
f0e9217a MD |
413 | } |
414 | } | |
1bbd0b84 | 415 | #undef FUNC_NAME |
f0e9217a | 416 | |
bfe3154c | 417 | \f |
f0e9217a MD |
418 | |
419 | /* Eval in a local environment. We would like to have the ability to | |
e38ecb05 MD |
420 | * evaluate in a specified local environment, but due to the |
421 | * memoization this isn't normally possible. We solve it by copying | |
422 | * the code before evaluating. One solution would be to have eval.c | |
423 | * generate yet another evaluator. They are not very big actually. | |
f0e9217a | 424 | */ |
a1ec6916 | 425 | SCM_DEFINE (scm_local_eval, "local-eval", 1, 1, 0, |
1bbd0b84 | 426 | (SCM exp, SCM env), |
b380b885 MD |
427 | "Evaluate @var{exp} in its environment. If @var{env} is supplied,\n" |
428 | "it is the environment in which to evaluate @var{exp}. Otherwise,\n" | |
429 | "@var{exp} must be a memoized code object (in which case, its environment\n" | |
430 | "is implicit).") | |
1bbd0b84 | 431 | #define FUNC_NAME s_scm_local_eval |
f0e9217a | 432 | { |
6c179711 MD |
433 | if (SCM_UNBNDP (env)) |
434 | { | |
82b3290d MD |
435 | SCM_VALIDATE_MEMOIZED (1, exp); |
436 | return scm_i_eval_x (SCM_MEMOIZED_EXP (exp), SCM_MEMOIZED_ENV (exp)); | |
6c179711 | 437 | } |
82b3290d | 438 | return scm_i_eval (exp, env); |
f0e9217a | 439 | } |
1bbd0b84 | 440 | #undef FUNC_NAME |
f0e9217a | 441 | |
c75512d6 | 442 | #if 0 |
1bbd0b84 | 443 | SCM_REGISTER_PROC (s_reverse_lookup, "reverse-lookup", 2, 0, 0, scm_reverse_lookup); |
c75512d6 MD |
444 | #endif |
445 | ||
446 | SCM | |
447 | scm_reverse_lookup (SCM env, SCM data) | |
448 | { | |
22a52da1 | 449 | while (SCM_CONSP (env) && SCM_CONSP (SCM_CAR (env))) |
c75512d6 | 450 | { |
22a52da1 DH |
451 | SCM names = SCM_CAAR (env); |
452 | SCM values = SCM_CDAR (env); | |
0c95b57d | 453 | while (SCM_CONSP (names)) |
c75512d6 | 454 | { |
cffcab30 | 455 | if (SCM_EQ_P (SCM_CAR (values), data)) |
c75512d6 MD |
456 | return SCM_CAR (names); |
457 | names = SCM_CDR (names); | |
458 | values = SCM_CDR (values); | |
459 | } | |
22a52da1 | 460 | if (!SCM_NULLP (names) && SCM_EQ_P (values, data)) |
c75512d6 MD |
461 | return names; |
462 | env = SCM_CDR (env); | |
463 | } | |
464 | return SCM_BOOL_F; | |
465 | } | |
466 | ||
bfe3154c | 467 | SCM |
6e8d25a6 | 468 | scm_start_stack (SCM id, SCM exp, SCM env) |
bfe3154c MD |
469 | { |
470 | SCM answer; | |
92c2555f MV |
471 | scm_t_debug_frame vframe; |
472 | scm_t_debug_info vframe_vect_body; | |
9fa2c7b1 MD |
473 | vframe.prev = scm_last_debug_frame; |
474 | vframe.status = SCM_VOIDFRAME; | |
475 | vframe.vect = &vframe_vect_body; | |
476 | vframe.vect[0].id = id; | |
477 | scm_last_debug_frame = &vframe; | |
82b3290d | 478 | answer = scm_i_eval (exp, env); |
9fa2c7b1 MD |
479 | scm_last_debug_frame = vframe.prev; |
480 | return answer; | |
481 | } | |
482 | ||
b8229a3b MS |
483 | SCM_SYNTAX(s_start_stack, "start-stack", scm_makacro, scm_m_start_stack); |
484 | ||
8a04c1a2 | 485 | static SCM |
6e8d25a6 | 486 | scm_m_start_stack (SCM exp, SCM env) |
68baa7e7 | 487 | #define FUNC_NAME s_start_stack |
9fa2c7b1 | 488 | { |
bfe3154c | 489 | exp = SCM_CDR (exp); |
904a077d MV |
490 | if (!SCM_CONSP (exp) |
491 | || !SCM_CONSP (SCM_CDR (exp)) | |
68baa7e7 DH |
492 | || !SCM_NULLP (SCM_CDDR (exp))) |
493 | SCM_WRONG_NUM_ARGS (); | |
9fa2c7b1 | 494 | return scm_start_stack (scm_eval_car (exp, env), SCM_CADR (exp), env); |
bfe3154c | 495 | } |
68baa7e7 DH |
496 | #undef FUNC_NAME |
497 | ||
f0e9217a MD |
498 | |
499 | /* {Debug Objects} | |
500 | * | |
501 | * The debugging evaluator throws these on frame traps. | |
502 | */ | |
503 | ||
92c2555f | 504 | scm_t_bits scm_tc16_debugobj; |
f0e9217a | 505 | |
f0e9217a | 506 | static int |
e81d98ec | 507 | debugobj_print (SCM obj, SCM port, scm_print_state *pstate SCM_UNUSED) |
f0e9217a | 508 | { |
b7f3516f | 509 | scm_puts ("#<debug-object ", port); |
37c56aec | 510 | scm_intprint ((long) SCM_DEBUGOBJ_FRAME (obj), 16, port); |
b7f3516f | 511 | scm_putc ('>', port); |
f0e9217a MD |
512 | return 1; |
513 | } | |
514 | ||
a1ec6916 | 515 | SCM_DEFINE (scm_debug_object_p, "debug-object?", 1, 0, 0, |
1bbd0b84 | 516 | (SCM obj), |
ba94f79e | 517 | "Return @code{#t} if @var{obj} is a debug object.") |
1bbd0b84 | 518 | #define FUNC_NAME s_scm_debug_object_p |
f0e9217a | 519 | { |
0c95b57d | 520 | return SCM_BOOL(SCM_DEBUGOBJP (obj)); |
f0e9217a | 521 | } |
1bbd0b84 | 522 | #undef FUNC_NAME |
f0e9217a | 523 | |
1cc91f1b | 524 | |
f0e9217a | 525 | SCM |
92c2555f | 526 | scm_make_debugobj (scm_t_debug_frame *frame) |
f0e9217a | 527 | { |
228a24ef | 528 | return scm_cell (scm_tc16_debugobj, (scm_t_bits) frame); |
f0e9217a MD |
529 | } |
530 | ||
f0e9217a MD |
531 | \f |
532 | ||
fe57f652 MD |
533 | /* Undocumented debugging procedure */ |
534 | #ifdef GUILE_DEBUG | |
a1ec6916 | 535 | SCM_DEFINE (scm_debug_hang, "debug-hang", 0, 1, 0, |
1bbd0b84 | 536 | (SCM obj), |
ba94f79e MG |
537 | "Go into an endless loop, which can be only terminated with\n" |
538 | "a debugger.") | |
1bbd0b84 | 539 | #define FUNC_NAME s_scm_debug_hang |
e38ecb05 MD |
540 | { |
541 | int go = 0; | |
542 | while (!go) ; | |
543 | return SCM_UNSPECIFIED; | |
544 | } | |
1bbd0b84 | 545 | #undef FUNC_NAME |
fe57f652 | 546 | #endif |
e38ecb05 MD |
547 | |
548 | \f | |
549 | ||
f0e9217a MD |
550 | void |
551 | scm_init_debug () | |
552 | { | |
5e8d7fd4 | 553 | scm_init_opts (scm_debug_options, scm_debug_opts, SCM_N_DEBUG_OPTIONS); |
ee340120 | 554 | |
e841c3e0 KN |
555 | scm_tc16_memoized = scm_make_smob_type ("memoized", 0); |
556 | scm_set_smob_mark (scm_tc16_memoized, scm_markcdr); | |
557 | scm_set_smob_print (scm_tc16_memoized, memoized_print); | |
23a62151 | 558 | |
e841c3e0 KN |
559 | scm_tc16_debugobj = scm_make_smob_type ("debug-object", 0); |
560 | scm_set_smob_print (scm_tc16_debugobj, debugobj_print); | |
f0e9217a | 561 | |
33b97402 | 562 | #ifdef GUILE_DEBUG |
1be6b49c ML |
563 | scm_c_define ("SCM_IM_AND", SCM_IM_AND); |
564 | scm_c_define ("SCM_IM_BEGIN", SCM_IM_BEGIN); | |
565 | scm_c_define ("SCM_IM_CASE", SCM_IM_CASE); | |
566 | scm_c_define ("SCM_IM_COND", SCM_IM_COND); | |
567 | scm_c_define ("SCM_IM_DO", SCM_IM_DO); | |
568 | scm_c_define ("SCM_IM_IF", SCM_IM_IF); | |
569 | scm_c_define ("SCM_IM_LAMBDA", SCM_IM_LAMBDA); | |
570 | scm_c_define ("SCM_IM_LET", SCM_IM_LET); | |
571 | scm_c_define ("SCM_IM_LETSTAR", SCM_IM_LETSTAR); | |
572 | scm_c_define ("SCM_IM_LETREC", SCM_IM_LETREC); | |
573 | scm_c_define ("SCM_IM_OR", SCM_IM_OR); | |
574 | scm_c_define ("SCM_IM_QUOTE", SCM_IM_QUOTE); | |
575 | scm_c_define ("SCM_IM_SET_X", SCM_IM_SET_X); | |
576 | scm_c_define ("SCM_IM_DEFINE", SCM_IM_DEFINE); | |
577 | scm_c_define ("SCM_IM_APPLY", SCM_IM_APPLY); | |
578 | scm_c_define ("SCM_IM_CONT", SCM_IM_CONT); | |
579 | scm_c_define ("SCM_IM_DISPATCH", SCM_IM_DISPATCH); | |
33b97402 | 580 | #endif |
f0e9217a MD |
581 | scm_add_feature ("debug-extensions"); |
582 | ||
a0599745 | 583 | #include "libguile/debug.x" |
f0e9217a | 584 | } |
89e00824 ML |
585 | |
586 | /* | |
587 | Local Variables: | |
588 | c-file-style: "gnu" | |
589 | End: | |
590 | */ |