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1 | /* Print in infix form a struct expression. | |
2 | ||
3 | Copyright (C) 1986-2020 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "expression.h" | |
24 | #include "value.h" | |
25 | #include "language.h" | |
26 | #include "parser-defs.h" | |
27 | #include "user-regs.h" /* For user_reg_map_regnum_to_name. */ | |
28 | #include "target.h" | |
29 | #include "block.h" | |
30 | #include "objfiles.h" | |
31 | #include "valprint.h" | |
32 | #include "cli/cli-style.h" | |
33 | ||
34 | #include <ctype.h> | |
35 | ||
36 | void | |
37 | print_expression (struct expression *exp, struct ui_file *stream) | |
38 | { | |
39 | int pc = 0; | |
40 | ||
41 | print_subexp (exp, &pc, stream, PREC_NULL); | |
42 | } | |
43 | ||
44 | /* Print the subexpression of EXP that starts in position POS, on STREAM. | |
45 | PREC is the precedence of the surrounding operator; | |
46 | if the precedence of the main operator of this subexpression is less, | |
47 | parentheses are needed here. */ | |
48 | ||
49 | void | |
50 | print_subexp (struct expression *exp, int *pos, | |
51 | struct ui_file *stream, enum precedence prec) | |
52 | { | |
53 | exp->language_defn->expression_ops ()->print_subexp (exp, pos, stream, | |
54 | prec); | |
55 | } | |
56 | ||
57 | /* See parser-defs.h. */ | |
58 | ||
59 | void | |
60 | print_subexp_funcall (struct expression *exp, int *pos, | |
61 | struct ui_file *stream) | |
62 | { | |
63 | unsigned nargs = longest_to_int (exp->elts[*pos].longconst); | |
64 | (*pos) += 2; | |
65 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
66 | fputs_filtered (" (", stream); | |
67 | for (unsigned tem = 0; tem < nargs; tem++) | |
68 | { | |
69 | if (tem != 0) | |
70 | fputs_filtered (", ", stream); | |
71 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
72 | } | |
73 | fputs_filtered (")", stream); | |
74 | } | |
75 | ||
76 | /* Standard implementation of print_subexp for use in language_defn | |
77 | vectors. */ | |
78 | void | |
79 | print_subexp_standard (struct expression *exp, int *pos, | |
80 | struct ui_file *stream, enum precedence prec) | |
81 | { | |
82 | unsigned tem; | |
83 | const struct op_print *op_print_tab; | |
84 | int pc; | |
85 | unsigned nargs; | |
86 | const char *op_str; | |
87 | int assign_modify = 0; | |
88 | enum exp_opcode opcode; | |
89 | enum precedence myprec = PREC_NULL; | |
90 | /* Set to 1 for a right-associative operator. */ | |
91 | int assoc = 0; | |
92 | struct value *val; | |
93 | char *tempstr = NULL; | |
94 | ||
95 | op_print_tab = exp->language_defn->opcode_print_table (); | |
96 | pc = (*pos)++; | |
97 | opcode = exp->elts[pc].opcode; | |
98 | switch (opcode) | |
99 | { | |
100 | /* Common ops */ | |
101 | ||
102 | case OP_TYPE: | |
103 | (*pos) += 2; | |
104 | type_print (exp->elts[pc + 1].type, "", stream, 0); | |
105 | return; | |
106 | ||
107 | case OP_SCOPE: | |
108 | myprec = PREC_PREFIX; | |
109 | assoc = 0; | |
110 | fputs_filtered (exp->elts[pc + 1].type->name (), stream); | |
111 | fputs_filtered ("::", stream); | |
112 | nargs = longest_to_int (exp->elts[pc + 2].longconst); | |
113 | (*pos) += 4 + BYTES_TO_EXP_ELEM (nargs + 1); | |
114 | fputs_filtered (&exp->elts[pc + 3].string, stream); | |
115 | return; | |
116 | ||
117 | case OP_LONG: | |
118 | { | |
119 | struct value_print_options opts; | |
120 | ||
121 | get_no_prettyformat_print_options (&opts); | |
122 | (*pos) += 3; | |
123 | value_print (value_from_longest (exp->elts[pc + 1].type, | |
124 | exp->elts[pc + 2].longconst), | |
125 | stream, &opts); | |
126 | } | |
127 | return; | |
128 | ||
129 | case OP_FLOAT: | |
130 | { | |
131 | struct value_print_options opts; | |
132 | ||
133 | get_no_prettyformat_print_options (&opts); | |
134 | (*pos) += 3; | |
135 | value_print (value_from_contents (exp->elts[pc + 1].type, | |
136 | exp->elts[pc + 2].floatconst), | |
137 | stream, &opts); | |
138 | } | |
139 | return; | |
140 | ||
141 | case OP_VAR_VALUE: | |
142 | { | |
143 | const struct block *b; | |
144 | ||
145 | (*pos) += 3; | |
146 | b = exp->elts[pc + 1].block; | |
147 | if (b != NULL | |
148 | && BLOCK_FUNCTION (b) != NULL | |
149 | && BLOCK_FUNCTION (b)->print_name () != NULL) | |
150 | { | |
151 | fputs_filtered (BLOCK_FUNCTION (b)->print_name (), stream); | |
152 | fputs_filtered ("::", stream); | |
153 | } | |
154 | fputs_filtered (exp->elts[pc + 2].symbol->print_name (), stream); | |
155 | } | |
156 | return; | |
157 | ||
158 | case OP_VAR_MSYM_VALUE: | |
159 | { | |
160 | (*pos) += 3; | |
161 | fputs_filtered (exp->elts[pc + 2].msymbol->print_name (), stream); | |
162 | } | |
163 | return; | |
164 | ||
165 | case OP_FUNC_STATIC_VAR: | |
166 | { | |
167 | tem = longest_to_int (exp->elts[pc + 1].longconst); | |
168 | (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1); | |
169 | fputs_filtered (&exp->elts[pc + 1].string, stream); | |
170 | } | |
171 | return; | |
172 | ||
173 | case OP_VAR_ENTRY_VALUE: | |
174 | { | |
175 | (*pos) += 2; | |
176 | fprintf_filtered (stream, "%s@entry", | |
177 | exp->elts[pc + 1].symbol->print_name ()); | |
178 | } | |
179 | return; | |
180 | ||
181 | case OP_LAST: | |
182 | (*pos) += 2; | |
183 | fprintf_filtered (stream, "$%d", | |
184 | longest_to_int (exp->elts[pc + 1].longconst)); | |
185 | return; | |
186 | ||
187 | case OP_REGISTER: | |
188 | { | |
189 | const char *name = &exp->elts[pc + 2].string; | |
190 | ||
191 | (*pos) += 3 + BYTES_TO_EXP_ELEM (exp->elts[pc + 1].longconst + 1); | |
192 | fprintf_filtered (stream, "$%s", name); | |
193 | return; | |
194 | } | |
195 | ||
196 | case OP_BOOL: | |
197 | (*pos) += 2; | |
198 | fprintf_filtered (stream, "%s", | |
199 | longest_to_int (exp->elts[pc + 1].longconst) | |
200 | ? "TRUE" : "FALSE"); | |
201 | return; | |
202 | ||
203 | case OP_INTERNALVAR: | |
204 | (*pos) += 2; | |
205 | fprintf_filtered (stream, "$%s", | |
206 | internalvar_name (exp->elts[pc + 1].internalvar)); | |
207 | return; | |
208 | ||
209 | case OP_FUNCALL: | |
210 | print_subexp_funcall (exp, pos, stream); | |
211 | return; | |
212 | ||
213 | case OP_NAME: | |
214 | nargs = longest_to_int (exp->elts[pc + 1].longconst); | |
215 | (*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1); | |
216 | fputs_filtered (&exp->elts[pc + 2].string, stream); | |
217 | return; | |
218 | ||
219 | case OP_STRING: | |
220 | { | |
221 | struct value_print_options opts; | |
222 | ||
223 | nargs = longest_to_int (exp->elts[pc + 1].longconst); | |
224 | (*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1); | |
225 | /* LA_PRINT_STRING will print using the current repeat count threshold. | |
226 | If necessary, we can temporarily set it to zero, or pass it as an | |
227 | additional parameter to LA_PRINT_STRING. -fnf */ | |
228 | get_user_print_options (&opts); | |
229 | exp->language_defn | |
230 | ->printstr (stream, builtin_type (exp->gdbarch)->builtin_char, | |
231 | (gdb_byte *) &exp->elts[pc + 2].string, nargs, | |
232 | NULL, 0, &opts); | |
233 | } | |
234 | return; | |
235 | ||
236 | case OP_OBJC_NSSTRING: /* Objective-C Foundation Class | |
237 | NSString constant. */ | |
238 | { | |
239 | struct value_print_options opts; | |
240 | ||
241 | nargs = longest_to_int (exp->elts[pc + 1].longconst); | |
242 | (*pos) += 3 + BYTES_TO_EXP_ELEM (nargs + 1); | |
243 | fputs_filtered ("@\"", stream); | |
244 | get_user_print_options (&opts); | |
245 | exp->language_defn | |
246 | ->printstr (stream, builtin_type (exp->gdbarch)->builtin_char, | |
247 | (gdb_byte *) &exp->elts[pc + 2].string, nargs, | |
248 | NULL, 0, &opts); | |
249 | fputs_filtered ("\"", stream); | |
250 | } | |
251 | return; | |
252 | ||
253 | case OP_OBJC_MSGCALL: | |
254 | { /* Objective C message (method) call. */ | |
255 | (*pos) += 3; | |
256 | nargs = longest_to_int (exp->elts[pc + 2].longconst); | |
257 | fprintf_unfiltered (stream, "["); | |
258 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
259 | gdb::unique_xmalloc_ptr<char> selector | |
260 | = target_read_string (exp->elts[pc + 1].longconst, 1024); | |
261 | if (selector == nullptr) | |
262 | error (_("bad selector")); | |
263 | if (nargs) | |
264 | { | |
265 | char *s, *nextS; | |
266 | ||
267 | s = selector.get (); | |
268 | for (tem = 0; tem < nargs; tem++) | |
269 | { | |
270 | nextS = strchr (s, ':'); | |
271 | gdb_assert (nextS); /* Make sure we found ':'. */ | |
272 | *nextS = '\0'; | |
273 | fprintf_unfiltered (stream, " %s: ", s); | |
274 | s = nextS + 1; | |
275 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
276 | } | |
277 | } | |
278 | else | |
279 | { | |
280 | fprintf_unfiltered (stream, " %s", selector.get ()); | |
281 | } | |
282 | fprintf_unfiltered (stream, "]"); | |
283 | return; | |
284 | } | |
285 | ||
286 | case OP_ARRAY: | |
287 | (*pos) += 3; | |
288 | nargs = longest_to_int (exp->elts[pc + 2].longconst); | |
289 | nargs -= longest_to_int (exp->elts[pc + 1].longconst); | |
290 | nargs++; | |
291 | tem = 0; | |
292 | if (exp->elts[pc + 4].opcode == OP_LONG | |
293 | && exp->elts[pc + 5].type | |
294 | == builtin_type (exp->gdbarch)->builtin_char | |
295 | && exp->language_defn->la_language == language_c) | |
296 | { | |
297 | /* Attempt to print C character arrays using string syntax. | |
298 | Walk through the args, picking up one character from each | |
299 | of the OP_LONG expression elements. If any array element | |
300 | does not match our expection of what we should find for | |
301 | a simple string, revert back to array printing. Note that | |
302 | the last expression element is an explicit null terminator | |
303 | byte, which doesn't get printed. */ | |
304 | tempstr = (char *) alloca (nargs); | |
305 | pc += 4; | |
306 | while (tem < nargs) | |
307 | { | |
308 | if (exp->elts[pc].opcode != OP_LONG | |
309 | || exp->elts[pc + 1].type | |
310 | != builtin_type (exp->gdbarch)->builtin_char) | |
311 | { | |
312 | /* Not a simple array of char, use regular array | |
313 | printing. */ | |
314 | tem = 0; | |
315 | break; | |
316 | } | |
317 | else | |
318 | { | |
319 | tempstr[tem++] = | |
320 | longest_to_int (exp->elts[pc + 2].longconst); | |
321 | pc += 4; | |
322 | } | |
323 | } | |
324 | } | |
325 | if (tem > 0) | |
326 | { | |
327 | struct value_print_options opts; | |
328 | ||
329 | get_user_print_options (&opts); | |
330 | exp->language_defn | |
331 | ->printstr (stream, builtin_type (exp->gdbarch)->builtin_char, | |
332 | (gdb_byte *) tempstr, nargs - 1, NULL, 0, &opts); | |
333 | (*pos) = pc; | |
334 | } | |
335 | else | |
336 | { | |
337 | fputs_filtered (" {", stream); | |
338 | for (tem = 0; tem < nargs; tem++) | |
339 | { | |
340 | if (tem != 0) | |
341 | { | |
342 | fputs_filtered (", ", stream); | |
343 | } | |
344 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
345 | } | |
346 | fputs_filtered ("}", stream); | |
347 | } | |
348 | return; | |
349 | ||
350 | case TERNOP_COND: | |
351 | if ((int) prec > (int) PREC_COMMA) | |
352 | fputs_filtered ("(", stream); | |
353 | /* Print the subexpressions, forcing parentheses | |
354 | around any binary operations within them. | |
355 | This is more parentheses than are strictly necessary, | |
356 | but it looks clearer. */ | |
357 | print_subexp (exp, pos, stream, PREC_HYPER); | |
358 | fputs_filtered (" ? ", stream); | |
359 | print_subexp (exp, pos, stream, PREC_HYPER); | |
360 | fputs_filtered (" : ", stream); | |
361 | print_subexp (exp, pos, stream, PREC_HYPER); | |
362 | if ((int) prec > (int) PREC_COMMA) | |
363 | fputs_filtered (")", stream); | |
364 | return; | |
365 | ||
366 | case TERNOP_SLICE: | |
367 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
368 | fputs_filtered ("(", stream); | |
369 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
370 | fputs_filtered (opcode == TERNOP_SLICE ? " : " : " UP ", stream); | |
371 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
372 | fputs_filtered (")", stream); | |
373 | return; | |
374 | ||
375 | case STRUCTOP_STRUCT: | |
376 | tem = longest_to_int (exp->elts[pc + 1].longconst); | |
377 | (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1); | |
378 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
379 | fputs_filtered (".", stream); | |
380 | fputs_filtered (&exp->elts[pc + 2].string, stream); | |
381 | return; | |
382 | ||
383 | /* Will not occur for Modula-2. */ | |
384 | case STRUCTOP_PTR: | |
385 | tem = longest_to_int (exp->elts[pc + 1].longconst); | |
386 | (*pos) += 3 + BYTES_TO_EXP_ELEM (tem + 1); | |
387 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
388 | fputs_filtered ("->", stream); | |
389 | fputs_filtered (&exp->elts[pc + 2].string, stream); | |
390 | return; | |
391 | ||
392 | case STRUCTOP_MEMBER: | |
393 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
394 | fputs_filtered (".*", stream); | |
395 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
396 | return; | |
397 | ||
398 | case STRUCTOP_MPTR: | |
399 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
400 | fputs_filtered ("->*", stream); | |
401 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
402 | return; | |
403 | ||
404 | case BINOP_SUBSCRIPT: | |
405 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
406 | fputs_filtered ("[", stream); | |
407 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
408 | fputs_filtered ("]", stream); | |
409 | return; | |
410 | ||
411 | case UNOP_POSTINCREMENT: | |
412 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
413 | fputs_filtered ("++", stream); | |
414 | return; | |
415 | ||
416 | case UNOP_POSTDECREMENT: | |
417 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
418 | fputs_filtered ("--", stream); | |
419 | return; | |
420 | ||
421 | case UNOP_CAST: | |
422 | (*pos) += 2; | |
423 | if ((int) prec > (int) PREC_PREFIX) | |
424 | fputs_filtered ("(", stream); | |
425 | fputs_filtered ("(", stream); | |
426 | type_print (exp->elts[pc + 1].type, "", stream, 0); | |
427 | fputs_filtered (") ", stream); | |
428 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
429 | if ((int) prec > (int) PREC_PREFIX) | |
430 | fputs_filtered (")", stream); | |
431 | return; | |
432 | ||
433 | case UNOP_CAST_TYPE: | |
434 | if ((int) prec > (int) PREC_PREFIX) | |
435 | fputs_filtered ("(", stream); | |
436 | fputs_filtered ("(", stream); | |
437 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
438 | fputs_filtered (") ", stream); | |
439 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
440 | if ((int) prec > (int) PREC_PREFIX) | |
441 | fputs_filtered (")", stream); | |
442 | return; | |
443 | ||
444 | case UNOP_DYNAMIC_CAST: | |
445 | case UNOP_REINTERPRET_CAST: | |
446 | fputs_filtered (opcode == UNOP_DYNAMIC_CAST ? "dynamic_cast" | |
447 | : "reinterpret_cast", stream); | |
448 | fputs_filtered ("<", stream); | |
449 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
450 | fputs_filtered ("> (", stream); | |
451 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
452 | fputs_filtered (")", stream); | |
453 | return; | |
454 | ||
455 | case UNOP_MEMVAL: | |
456 | (*pos) += 2; | |
457 | if ((int) prec > (int) PREC_PREFIX) | |
458 | fputs_filtered ("(", stream); | |
459 | if (exp->elts[pc + 1].type->code () == TYPE_CODE_FUNC | |
460 | && exp->elts[pc + 3].opcode == OP_LONG) | |
461 | { | |
462 | struct value_print_options opts; | |
463 | ||
464 | /* We have a minimal symbol fn, probably. It's encoded | |
465 | as a UNOP_MEMVAL (function-type) of an OP_LONG (int, address). | |
466 | Swallow the OP_LONG (including both its opcodes); ignore | |
467 | its type; print the value in the type of the MEMVAL. */ | |
468 | (*pos) += 4; | |
469 | val = value_at_lazy (exp->elts[pc + 1].type, | |
470 | (CORE_ADDR) exp->elts[pc + 5].longconst); | |
471 | get_no_prettyformat_print_options (&opts); | |
472 | value_print (val, stream, &opts); | |
473 | } | |
474 | else | |
475 | { | |
476 | fputs_filtered ("{", stream); | |
477 | type_print (exp->elts[pc + 1].type, "", stream, 0); | |
478 | fputs_filtered ("} ", stream); | |
479 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
480 | } | |
481 | if ((int) prec > (int) PREC_PREFIX) | |
482 | fputs_filtered (")", stream); | |
483 | return; | |
484 | ||
485 | case UNOP_MEMVAL_TYPE: | |
486 | if ((int) prec > (int) PREC_PREFIX) | |
487 | fputs_filtered ("(", stream); | |
488 | fputs_filtered ("{", stream); | |
489 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
490 | fputs_filtered ("} ", stream); | |
491 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
492 | if ((int) prec > (int) PREC_PREFIX) | |
493 | fputs_filtered (")", stream); | |
494 | return; | |
495 | ||
496 | case BINOP_ASSIGN_MODIFY: | |
497 | opcode = exp->elts[pc + 1].opcode; | |
498 | (*pos) += 2; | |
499 | myprec = PREC_ASSIGN; | |
500 | assoc = 1; | |
501 | assign_modify = 1; | |
502 | op_str = "???"; | |
503 | for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++) | |
504 | if (op_print_tab[tem].opcode == opcode) | |
505 | { | |
506 | op_str = op_print_tab[tem].string; | |
507 | break; | |
508 | } | |
509 | if (op_print_tab[tem].opcode != opcode) | |
510 | /* Not found; don't try to keep going because we don't know how | |
511 | to interpret further elements. */ | |
512 | error (_("Invalid expression")); | |
513 | break; | |
514 | ||
515 | /* C++ ops */ | |
516 | ||
517 | case OP_THIS: | |
518 | ++(*pos); | |
519 | if (exp->language_defn->name_of_this () != NULL) | |
520 | fputs_filtered (exp->language_defn->name_of_this (), stream); | |
521 | else | |
522 | fprintf_styled (stream, metadata_style.style (), | |
523 | _("<language %s has no 'this'>"), | |
524 | exp->language_defn->name ()); | |
525 | return; | |
526 | ||
527 | /* Modula-2 ops */ | |
528 | ||
529 | case MULTI_SUBSCRIPT: | |
530 | (*pos) += 2; | |
531 | nargs = longest_to_int (exp->elts[pc + 1].longconst); | |
532 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
533 | fprintf_unfiltered (stream, " ["); | |
534 | for (tem = 0; tem < nargs; tem++) | |
535 | { | |
536 | if (tem != 0) | |
537 | fprintf_unfiltered (stream, ", "); | |
538 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
539 | } | |
540 | fprintf_unfiltered (stream, "]"); | |
541 | return; | |
542 | ||
543 | case BINOP_VAL: | |
544 | (*pos) += 2; | |
545 | fprintf_unfiltered (stream, "VAL("); | |
546 | type_print (exp->elts[pc + 1].type, "", stream, 0); | |
547 | fprintf_unfiltered (stream, ","); | |
548 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
549 | fprintf_unfiltered (stream, ")"); | |
550 | return; | |
551 | ||
552 | case TYPE_INSTANCE: | |
553 | { | |
554 | type_instance_flags flags | |
555 | = (type_instance_flag_value) longest_to_int (exp->elts[pc + 1].longconst); | |
556 | LONGEST count = exp->elts[pc + 2].longconst; | |
557 | ||
558 | /* The FLAGS. */ | |
559 | (*pos)++; | |
560 | /* The COUNT. */ | |
561 | (*pos)++; | |
562 | fputs_unfiltered ("TypeInstance(", stream); | |
563 | while (count-- > 0) | |
564 | { | |
565 | type_print (exp->elts[(*pos)++].type, "", stream, 0); | |
566 | if (count > 0) | |
567 | fputs_unfiltered (",", stream); | |
568 | } | |
569 | fputs_unfiltered (",", stream); | |
570 | /* Ending COUNT and ending TYPE_INSTANCE. */ | |
571 | (*pos) += 2; | |
572 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
573 | ||
574 | if (flags & TYPE_INSTANCE_FLAG_CONST) | |
575 | fputs_unfiltered (",const", stream); | |
576 | if (flags & TYPE_INSTANCE_FLAG_VOLATILE) | |
577 | fputs_unfiltered (",volatile", stream); | |
578 | ||
579 | fputs_unfiltered (")", stream); | |
580 | return; | |
581 | } | |
582 | ||
583 | case OP_RANGE: | |
584 | { | |
585 | enum range_flag range_flag; | |
586 | ||
587 | range_flag = (enum range_flag) | |
588 | longest_to_int (exp->elts[pc + 1].longconst); | |
589 | *pos += 2; | |
590 | ||
591 | if (range_flag & RANGE_HIGH_BOUND_EXCLUSIVE) | |
592 | fputs_filtered ("EXCLUSIVE_", stream); | |
593 | fputs_filtered ("RANGE(", stream); | |
594 | if (!(range_flag & RANGE_LOW_BOUND_DEFAULT)) | |
595 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
596 | fputs_filtered ("..", stream); | |
597 | if (!(range_flag & RANGE_HIGH_BOUND_DEFAULT)) | |
598 | print_subexp (exp, pos, stream, PREC_ABOVE_COMMA); | |
599 | fputs_filtered (")", stream); | |
600 | return; | |
601 | } | |
602 | ||
603 | /* Default ops */ | |
604 | ||
605 | default: | |
606 | op_str = "???"; | |
607 | for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++) | |
608 | if (op_print_tab[tem].opcode == opcode) | |
609 | { | |
610 | op_str = op_print_tab[tem].string; | |
611 | myprec = op_print_tab[tem].precedence; | |
612 | assoc = op_print_tab[tem].right_assoc; | |
613 | break; | |
614 | } | |
615 | if (op_print_tab[tem].opcode != opcode) | |
616 | /* Not found; don't try to keep going because we don't know how | |
617 | to interpret further elements. For example, this happens | |
618 | if opcode is OP_TYPE. */ | |
619 | error (_("Invalid expression")); | |
620 | } | |
621 | ||
622 | /* Note that PREC_BUILTIN will always emit parentheses. */ | |
623 | if ((int) myprec < (int) prec) | |
624 | fputs_filtered ("(", stream); | |
625 | if ((int) opcode > (int) BINOP_END) | |
626 | { | |
627 | if (assoc) | |
628 | { | |
629 | /* Unary postfix operator. */ | |
630 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
631 | fputs_filtered (op_str, stream); | |
632 | } | |
633 | else | |
634 | { | |
635 | /* Unary prefix operator. */ | |
636 | fputs_filtered (op_str, stream); | |
637 | if (myprec == PREC_BUILTIN_FUNCTION) | |
638 | fputs_filtered ("(", stream); | |
639 | print_subexp (exp, pos, stream, PREC_PREFIX); | |
640 | if (myprec == PREC_BUILTIN_FUNCTION) | |
641 | fputs_filtered (")", stream); | |
642 | } | |
643 | } | |
644 | else | |
645 | { | |
646 | /* Binary operator. */ | |
647 | /* Print left operand. | |
648 | If operator is right-associative, | |
649 | increment precedence for this operand. */ | |
650 | print_subexp (exp, pos, stream, | |
651 | (enum precedence) ((int) myprec + assoc)); | |
652 | /* Print the operator itself. */ | |
653 | if (assign_modify) | |
654 | fprintf_filtered (stream, " %s= ", op_str); | |
655 | else if (op_str[0] == ',') | |
656 | fprintf_filtered (stream, "%s ", op_str); | |
657 | else | |
658 | fprintf_filtered (stream, " %s ", op_str); | |
659 | /* Print right operand. | |
660 | If operator is left-associative, | |
661 | increment precedence for this operand. */ | |
662 | print_subexp (exp, pos, stream, | |
663 | (enum precedence) ((int) myprec + !assoc)); | |
664 | } | |
665 | ||
666 | if ((int) myprec < (int) prec) | |
667 | fputs_filtered (")", stream); | |
668 | } | |
669 | ||
670 | /* Return the operator corresponding to opcode OP as | |
671 | a string. NULL indicates that the opcode was not found in the | |
672 | current language table. */ | |
673 | const char * | |
674 | op_string (enum exp_opcode op) | |
675 | { | |
676 | int tem; | |
677 | const struct op_print *op_print_tab; | |
678 | ||
679 | op_print_tab = current_language->opcode_print_table (); | |
680 | for (tem = 0; op_print_tab[tem].opcode != OP_NULL; tem++) | |
681 | if (op_print_tab[tem].opcode == op) | |
682 | return op_print_tab[tem].string; | |
683 | return NULL; | |
684 | } | |
685 | ||
686 | /* Support for dumping the raw data from expressions in a human readable | |
687 | form. */ | |
688 | ||
689 | static int dump_subexp_body (struct expression *exp, struct ui_file *, int); | |
690 | ||
691 | /* Default name for the standard operator OPCODE (i.e., one defined in | |
692 | the definition of enum exp_opcode). */ | |
693 | ||
694 | const char * | |
695 | op_name (enum exp_opcode opcode) | |
696 | { | |
697 | switch (opcode) | |
698 | { | |
699 | default: | |
700 | { | |
701 | static char buf[30]; | |
702 | ||
703 | xsnprintf (buf, sizeof (buf), "<unknown %d>", opcode); | |
704 | return buf; | |
705 | } | |
706 | #define OP(name) \ | |
707 | case name: \ | |
708 | return #name ; | |
709 | #include "std-operator.def" | |
710 | #undef OP | |
711 | } | |
712 | } | |
713 | ||
714 | /* Print a raw dump of expression EXP to STREAM. | |
715 | NOTE, if non-NULL, is printed as extra explanatory text. */ | |
716 | ||
717 | void | |
718 | dump_raw_expression (struct expression *exp, struct ui_file *stream, | |
719 | const char *note) | |
720 | { | |
721 | int elt; | |
722 | char *eltscan; | |
723 | int eltsize; | |
724 | ||
725 | fprintf_filtered (stream, "Dump of expression @ "); | |
726 | gdb_print_host_address (exp, stream); | |
727 | if (note) | |
728 | fprintf_filtered (stream, ", %s:", note); | |
729 | fprintf_filtered (stream, "\n\tLanguage %s, %d elements, %ld bytes each.\n", | |
730 | exp->language_defn->name (), exp->nelts, | |
731 | (long) sizeof (union exp_element)); | |
732 | fprintf_filtered (stream, "\t%5s %20s %16s %s\n", "Index", "Opcode", | |
733 | "Hex Value", "String Value"); | |
734 | for (elt = 0; elt < exp->nelts; elt++) | |
735 | { | |
736 | fprintf_filtered (stream, "\t%5d ", elt); | |
737 | ||
738 | const char *opcode_name = op_name (exp->elts[elt].opcode); | |
739 | fprintf_filtered (stream, "%20s ", opcode_name); | |
740 | ||
741 | print_longest (stream, 'd', 0, exp->elts[elt].longconst); | |
742 | fprintf_filtered (stream, " "); | |
743 | ||
744 | for (eltscan = (char *) &exp->elts[elt], | |
745 | eltsize = sizeof (union exp_element); | |
746 | eltsize-- > 0; | |
747 | eltscan++) | |
748 | { | |
749 | fprintf_filtered (stream, "%c", | |
750 | isprint (*eltscan) ? (*eltscan & 0xFF) : '.'); | |
751 | } | |
752 | fprintf_filtered (stream, "\n"); | |
753 | } | |
754 | } | |
755 | ||
756 | /* Dump the subexpression of prefix expression EXP whose operator is at | |
757 | position ELT onto STREAM. Returns the position of the next | |
758 | subexpression in EXP. */ | |
759 | ||
760 | int | |
761 | dump_subexp (struct expression *exp, struct ui_file *stream, int elt) | |
762 | { | |
763 | static int indent = 0; | |
764 | int i; | |
765 | ||
766 | fprintf_filtered (stream, "\n"); | |
767 | fprintf_filtered (stream, "\t%5d ", elt); | |
768 | ||
769 | for (i = 1; i <= indent; i++) | |
770 | fprintf_filtered (stream, " "); | |
771 | indent += 2; | |
772 | ||
773 | fprintf_filtered (stream, "%-20s ", op_name (exp->elts[elt].opcode)); | |
774 | ||
775 | elt = dump_subexp_body (exp, stream, elt); | |
776 | ||
777 | indent -= 2; | |
778 | ||
779 | return elt; | |
780 | } | |
781 | ||
782 | /* Dump the operands of prefix expression EXP whose opcode is at | |
783 | position ELT onto STREAM. Returns the position of the next | |
784 | subexpression in EXP. */ | |
785 | ||
786 | static int | |
787 | dump_subexp_body (struct expression *exp, struct ui_file *stream, int elt) | |
788 | { | |
789 | return exp->language_defn->expression_ops ()->dump_subexp_body (exp, stream, | |
790 | elt); | |
791 | } | |
792 | ||
793 | /* See parser-defs.h. */ | |
794 | ||
795 | int | |
796 | dump_subexp_body_funcall (struct expression *exp, | |
797 | struct ui_file *stream, int elt) | |
798 | { | |
799 | int nargs = longest_to_int (exp->elts[elt].longconst); | |
800 | fprintf_filtered (stream, "Number of args: %d", nargs); | |
801 | elt += 2; | |
802 | ||
803 | for (int i = 1; i <= nargs + 1; i++) | |
804 | elt = dump_subexp (exp, stream, elt); | |
805 | ||
806 | return elt; | |
807 | } | |
808 | ||
809 | /* Default value for subexp_body in exp_descriptor vector. */ | |
810 | ||
811 | int | |
812 | dump_subexp_body_standard (struct expression *exp, | |
813 | struct ui_file *stream, int elt) | |
814 | { | |
815 | int opcode = exp->elts[elt++].opcode; | |
816 | ||
817 | switch (opcode) | |
818 | { | |
819 | case TERNOP_COND: | |
820 | case TERNOP_SLICE: | |
821 | elt = dump_subexp (exp, stream, elt); | |
822 | /* FALL THROUGH */ | |
823 | case BINOP_ADD: | |
824 | case BINOP_SUB: | |
825 | case BINOP_MUL: | |
826 | case BINOP_DIV: | |
827 | case BINOP_REM: | |
828 | case BINOP_MOD: | |
829 | case BINOP_LSH: | |
830 | case BINOP_RSH: | |
831 | case BINOP_LOGICAL_AND: | |
832 | case BINOP_LOGICAL_OR: | |
833 | case BINOP_BITWISE_AND: | |
834 | case BINOP_BITWISE_IOR: | |
835 | case BINOP_BITWISE_XOR: | |
836 | case BINOP_EQUAL: | |
837 | case BINOP_NOTEQUAL: | |
838 | case BINOP_LESS: | |
839 | case BINOP_GTR: | |
840 | case BINOP_LEQ: | |
841 | case BINOP_GEQ: | |
842 | case BINOP_REPEAT: | |
843 | case BINOP_ASSIGN: | |
844 | case BINOP_COMMA: | |
845 | case BINOP_SUBSCRIPT: | |
846 | case BINOP_EXP: | |
847 | case BINOP_MIN: | |
848 | case BINOP_MAX: | |
849 | case BINOP_INTDIV: | |
850 | case BINOP_ASSIGN_MODIFY: | |
851 | case BINOP_VAL: | |
852 | case BINOP_CONCAT: | |
853 | case BINOP_END: | |
854 | case STRUCTOP_MEMBER: | |
855 | case STRUCTOP_MPTR: | |
856 | elt = dump_subexp (exp, stream, elt); | |
857 | /* FALL THROUGH */ | |
858 | case UNOP_NEG: | |
859 | case UNOP_LOGICAL_NOT: | |
860 | case UNOP_COMPLEMENT: | |
861 | case UNOP_IND: | |
862 | case UNOP_ADDR: | |
863 | case UNOP_PREINCREMENT: | |
864 | case UNOP_POSTINCREMENT: | |
865 | case UNOP_PREDECREMENT: | |
866 | case UNOP_POSTDECREMENT: | |
867 | case UNOP_SIZEOF: | |
868 | case UNOP_ALIGNOF: | |
869 | case UNOP_PLUS: | |
870 | case UNOP_CAP: | |
871 | case UNOP_CHR: | |
872 | case UNOP_ORD: | |
873 | case UNOP_ABS: | |
874 | case UNOP_FLOAT: | |
875 | case UNOP_HIGH: | |
876 | case UNOP_MAX: | |
877 | case UNOP_MIN: | |
878 | case UNOP_ODD: | |
879 | case UNOP_TRUNC: | |
880 | elt = dump_subexp (exp, stream, elt); | |
881 | break; | |
882 | case OP_LONG: | |
883 | fprintf_filtered (stream, "Type @"); | |
884 | gdb_print_host_address (exp->elts[elt].type, stream); | |
885 | fprintf_filtered (stream, " ("); | |
886 | type_print (exp->elts[elt].type, NULL, stream, 0); | |
887 | fprintf_filtered (stream, "), value %ld (0x%lx)", | |
888 | (long) exp->elts[elt + 1].longconst, | |
889 | (long) exp->elts[elt + 1].longconst); | |
890 | elt += 3; | |
891 | break; | |
892 | case OP_FLOAT: | |
893 | fprintf_filtered (stream, "Type @"); | |
894 | gdb_print_host_address (exp->elts[elt].type, stream); | |
895 | fprintf_filtered (stream, " ("); | |
896 | type_print (exp->elts[elt].type, NULL, stream, 0); | |
897 | fprintf_filtered (stream, "), value "); | |
898 | print_floating (exp->elts[elt + 1].floatconst, | |
899 | exp->elts[elt].type, stream); | |
900 | elt += 3; | |
901 | break; | |
902 | case OP_VAR_VALUE: | |
903 | fprintf_filtered (stream, "Block @"); | |
904 | gdb_print_host_address (exp->elts[elt].block, stream); | |
905 | fprintf_filtered (stream, ", symbol @"); | |
906 | gdb_print_host_address (exp->elts[elt + 1].symbol, stream); | |
907 | fprintf_filtered (stream, " (%s)", | |
908 | exp->elts[elt + 1].symbol->print_name ()); | |
909 | elt += 3; | |
910 | break; | |
911 | case OP_VAR_MSYM_VALUE: | |
912 | fprintf_filtered (stream, "Objfile @"); | |
913 | gdb_print_host_address (exp->elts[elt].objfile, stream); | |
914 | fprintf_filtered (stream, ", msymbol @"); | |
915 | gdb_print_host_address (exp->elts[elt + 1].msymbol, stream); | |
916 | fprintf_filtered (stream, " (%s)", | |
917 | exp->elts[elt + 1].msymbol->print_name ()); | |
918 | elt += 3; | |
919 | break; | |
920 | case OP_VAR_ENTRY_VALUE: | |
921 | fprintf_filtered (stream, "Entry value of symbol @"); | |
922 | gdb_print_host_address (exp->elts[elt].symbol, stream); | |
923 | fprintf_filtered (stream, " (%s)", | |
924 | exp->elts[elt].symbol->print_name ()); | |
925 | elt += 2; | |
926 | break; | |
927 | case OP_LAST: | |
928 | fprintf_filtered (stream, "History element %ld", | |
929 | (long) exp->elts[elt].longconst); | |
930 | elt += 2; | |
931 | break; | |
932 | case OP_REGISTER: | |
933 | fprintf_filtered (stream, "Register $%s", &exp->elts[elt + 1].string); | |
934 | elt += 3 + BYTES_TO_EXP_ELEM (exp->elts[elt].longconst + 1); | |
935 | break; | |
936 | case OP_INTERNALVAR: | |
937 | fprintf_filtered (stream, "Internal var @"); | |
938 | gdb_print_host_address (exp->elts[elt].internalvar, stream); | |
939 | fprintf_filtered (stream, " (%s)", | |
940 | internalvar_name (exp->elts[elt].internalvar)); | |
941 | elt += 2; | |
942 | break; | |
943 | case OP_FUNCALL: | |
944 | elt = dump_subexp_body_funcall (exp, stream, elt); | |
945 | break; | |
946 | case OP_ARRAY: | |
947 | { | |
948 | int lower, upper; | |
949 | int i; | |
950 | ||
951 | lower = longest_to_int (exp->elts[elt].longconst); | |
952 | upper = longest_to_int (exp->elts[elt + 1].longconst); | |
953 | ||
954 | fprintf_filtered (stream, "Bounds [%d:%d]", lower, upper); | |
955 | elt += 3; | |
956 | ||
957 | for (i = 1; i <= upper - lower + 1; i++) | |
958 | elt = dump_subexp (exp, stream, elt); | |
959 | } | |
960 | break; | |
961 | case UNOP_DYNAMIC_CAST: | |
962 | case UNOP_REINTERPRET_CAST: | |
963 | case UNOP_CAST_TYPE: | |
964 | case UNOP_MEMVAL_TYPE: | |
965 | fprintf_filtered (stream, " ("); | |
966 | elt = dump_subexp (exp, stream, elt); | |
967 | fprintf_filtered (stream, ")"); | |
968 | elt = dump_subexp (exp, stream, elt); | |
969 | break; | |
970 | case UNOP_MEMVAL: | |
971 | case UNOP_CAST: | |
972 | fprintf_filtered (stream, "Type @"); | |
973 | gdb_print_host_address (exp->elts[elt].type, stream); | |
974 | fprintf_filtered (stream, " ("); | |
975 | type_print (exp->elts[elt].type, NULL, stream, 0); | |
976 | fprintf_filtered (stream, ")"); | |
977 | elt = dump_subexp (exp, stream, elt + 2); | |
978 | break; | |
979 | case OP_TYPE: | |
980 | fprintf_filtered (stream, "Type @"); | |
981 | gdb_print_host_address (exp->elts[elt].type, stream); | |
982 | fprintf_filtered (stream, " ("); | |
983 | type_print (exp->elts[elt].type, NULL, stream, 0); | |
984 | fprintf_filtered (stream, ")"); | |
985 | elt += 2; | |
986 | break; | |
987 | case OP_TYPEOF: | |
988 | case OP_DECLTYPE: | |
989 | fprintf_filtered (stream, "Typeof ("); | |
990 | elt = dump_subexp (exp, stream, elt); | |
991 | fprintf_filtered (stream, ")"); | |
992 | break; | |
993 | case OP_TYPEID: | |
994 | fprintf_filtered (stream, "typeid ("); | |
995 | elt = dump_subexp (exp, stream, elt); | |
996 | fprintf_filtered (stream, ")"); | |
997 | break; | |
998 | case STRUCTOP_STRUCT: | |
999 | case STRUCTOP_PTR: | |
1000 | { | |
1001 | char *elem_name; | |
1002 | int len; | |
1003 | ||
1004 | len = longest_to_int (exp->elts[elt].longconst); | |
1005 | elem_name = &exp->elts[elt + 1].string; | |
1006 | ||
1007 | fprintf_filtered (stream, "Element name: `%.*s'", len, elem_name); | |
1008 | elt = dump_subexp (exp, stream, elt + 3 + BYTES_TO_EXP_ELEM (len + 1)); | |
1009 | } | |
1010 | break; | |
1011 | case OP_SCOPE: | |
1012 | { | |
1013 | char *elem_name; | |
1014 | int len; | |
1015 | ||
1016 | fprintf_filtered (stream, "Type @"); | |
1017 | gdb_print_host_address (exp->elts[elt].type, stream); | |
1018 | fprintf_filtered (stream, " ("); | |
1019 | type_print (exp->elts[elt].type, NULL, stream, 0); | |
1020 | fprintf_filtered (stream, ") "); | |
1021 | ||
1022 | len = longest_to_int (exp->elts[elt + 1].longconst); | |
1023 | elem_name = &exp->elts[elt + 2].string; | |
1024 | ||
1025 | fprintf_filtered (stream, "Field name: `%.*s'", len, elem_name); | |
1026 | elt += 4 + BYTES_TO_EXP_ELEM (len + 1); | |
1027 | } | |
1028 | break; | |
1029 | ||
1030 | case OP_FUNC_STATIC_VAR: | |
1031 | { | |
1032 | int len = longest_to_int (exp->elts[elt].longconst); | |
1033 | const char *var_name = &exp->elts[elt + 1].string; | |
1034 | fprintf_filtered (stream, "Field name: `%.*s'", len, var_name); | |
1035 | elt += 3 + BYTES_TO_EXP_ELEM (len + 1); | |
1036 | } | |
1037 | break; | |
1038 | ||
1039 | case TYPE_INSTANCE: | |
1040 | { | |
1041 | type_instance_flags flags | |
1042 | = (type_instance_flag_value) longest_to_int (exp->elts[elt++].longconst); | |
1043 | LONGEST len = exp->elts[elt++].longconst; | |
1044 | fprintf_filtered (stream, "%s TypeInstance: ", plongest (len)); | |
1045 | while (len-- > 0) | |
1046 | { | |
1047 | fprintf_filtered (stream, "Type @"); | |
1048 | gdb_print_host_address (exp->elts[elt].type, stream); | |
1049 | fprintf_filtered (stream, " ("); | |
1050 | type_print (exp->elts[elt].type, NULL, stream, 0); | |
1051 | fprintf_filtered (stream, ")"); | |
1052 | elt++; | |
1053 | if (len > 0) | |
1054 | fputs_filtered (", ", stream); | |
1055 | } | |
1056 | ||
1057 | fprintf_filtered (stream, " Flags: %s (", hex_string (flags)); | |
1058 | bool space = false; | |
1059 | auto print_one = [&] (const char *mod) | |
1060 | { | |
1061 | if (space) | |
1062 | fputs_filtered (" ", stream); | |
1063 | space = true; | |
1064 | fprintf_filtered (stream, "%s", mod); | |
1065 | }; | |
1066 | if (flags & TYPE_INSTANCE_FLAG_CONST) | |
1067 | print_one ("const"); | |
1068 | if (flags & TYPE_INSTANCE_FLAG_VOLATILE) | |
1069 | print_one ("volatile"); | |
1070 | fprintf_filtered (stream, ")"); | |
1071 | ||
1072 | /* Ending LEN and ending TYPE_INSTANCE. */ | |
1073 | elt += 2; | |
1074 | elt = dump_subexp (exp, stream, elt); | |
1075 | } | |
1076 | break; | |
1077 | case OP_STRING: | |
1078 | { | |
1079 | LONGEST len = exp->elts[elt].longconst; | |
1080 | LONGEST type = exp->elts[elt + 1].longconst; | |
1081 | ||
1082 | fprintf_filtered (stream, "Language-specific string type: %s", | |
1083 | plongest (type)); | |
1084 | ||
1085 | /* Skip length. */ | |
1086 | elt += 1; | |
1087 | ||
1088 | /* Skip string content. */ | |
1089 | elt += BYTES_TO_EXP_ELEM (len); | |
1090 | ||
1091 | /* Skip length and ending OP_STRING. */ | |
1092 | elt += 2; | |
1093 | } | |
1094 | break; | |
1095 | case OP_RANGE: | |
1096 | { | |
1097 | enum range_flag range_flag; | |
1098 | ||
1099 | range_flag = (enum range_flag) | |
1100 | longest_to_int (exp->elts[elt].longconst); | |
1101 | elt += 2; | |
1102 | ||
1103 | if (range_flag & RANGE_HIGH_BOUND_EXCLUSIVE) | |
1104 | fputs_filtered ("Exclusive", stream); | |
1105 | fputs_filtered ("Range '", stream); | |
1106 | if (!(range_flag & RANGE_LOW_BOUND_DEFAULT)) | |
1107 | fputs_filtered ("EXP", stream); | |
1108 | fputs_filtered ("..", stream); | |
1109 | if (!(range_flag & RANGE_HIGH_BOUND_DEFAULT)) | |
1110 | fputs_filtered ("EXP", stream); | |
1111 | if (range_flag & RANGE_HAS_STRIDE) | |
1112 | fputs_filtered (":EXP", stream); | |
1113 | fputs_filtered ("'", stream); | |
1114 | ||
1115 | if (!(range_flag & RANGE_LOW_BOUND_DEFAULT)) | |
1116 | elt = dump_subexp (exp, stream, elt); | |
1117 | if (!(range_flag & RANGE_HIGH_BOUND_DEFAULT)) | |
1118 | elt = dump_subexp (exp, stream, elt); | |
1119 | if (range_flag & RANGE_HAS_STRIDE) | |
1120 | elt = dump_subexp (exp, stream, elt); | |
1121 | } | |
1122 | break; | |
1123 | ||
1124 | default: | |
1125 | case OP_NULL: | |
1126 | case MULTI_SUBSCRIPT: | |
1127 | case OP_COMPLEX: | |
1128 | case OP_BOOL: | |
1129 | case OP_M2_STRING: | |
1130 | case OP_THIS: | |
1131 | case OP_NAME: | |
1132 | fprintf_filtered (stream, "Unknown format"); | |
1133 | } | |
1134 | ||
1135 | return elt; | |
1136 | } | |
1137 | ||
1138 | void | |
1139 | dump_prefix_expression (struct expression *exp, struct ui_file *stream) | |
1140 | { | |
1141 | int elt; | |
1142 | ||
1143 | fprintf_filtered (stream, "Dump of expression @ "); | |
1144 | gdb_print_host_address (exp, stream); | |
1145 | fputs_filtered (", after conversion to prefix form:\nExpression: `", stream); | |
1146 | print_expression (exp, stream); | |
1147 | fprintf_filtered (stream, "'\n\tLanguage %s, %d elements, %ld bytes each.\n", | |
1148 | exp->language_defn->name (), exp->nelts, | |
1149 | (long) sizeof (union exp_element)); | |
1150 | fputs_filtered ("\n", stream); | |
1151 | ||
1152 | for (elt = 0; elt < exp->nelts;) | |
1153 | elt = dump_subexp (exp, stream, elt); | |
1154 | fputs_filtered ("\n", stream); | |
1155 | } |