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e2803273 TT |
1 | /* Definitions for expressions in GDB |
2 | ||
3 | Copyright (C) 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 | #ifndef EXPOP_H | |
21 | #define EXPOP_H | |
22 | ||
23 | #include "block.h" | |
24 | #include "c-lang.h" | |
25 | #include "cp-abi.h" | |
26 | #include "expression.h" | |
27 | #include "objfiles.h" | |
28 | #include "gdbsupport/traits.h" | |
29 | #include "gdbsupport/enum-flags.h" | |
30 | ||
31 | struct agent_expr; | |
32 | struct axs_value; | |
33 | ||
75f9892d TT |
34 | extern void gen_expr_binop (struct expression *exp, |
35 | enum exp_opcode op, | |
36 | expr::operation *lhs, expr::operation *rhs, | |
37 | struct agent_expr *ax, struct axs_value *value); | |
38 | extern void gen_expr_structop (struct expression *exp, | |
39 | enum exp_opcode op, | |
40 | expr::operation *lhs, | |
41 | const char *name, | |
42 | struct agent_expr *ax, struct axs_value *value); | |
9307d17b TT |
43 | extern void gen_expr_unop (struct expression *exp, |
44 | enum exp_opcode op, | |
45 | expr::operation *lhs, | |
46 | struct agent_expr *ax, struct axs_value *value); | |
75f9892d | 47 | |
d5ab122c TT |
48 | extern struct value *eval_op_scope (struct type *expect_type, |
49 | struct expression *exp, | |
50 | enum noside noside, | |
51 | struct type *type, const char *string); | |
0c8effa3 TT |
52 | extern struct value *eval_op_var_msym_value (struct type *expect_type, |
53 | struct expression *exp, | |
54 | enum noside noside, | |
55 | bool outermost_p, | |
56 | minimal_symbol *msymbol, | |
57 | struct objfile *objfile); | |
b5cc3923 TT |
58 | extern struct value *eval_op_var_entry_value (struct type *expect_type, |
59 | struct expression *exp, | |
60 | enum noside noside, symbol *sym); | |
17679395 TT |
61 | extern struct value *eval_op_func_static_var (struct type *expect_type, |
62 | struct expression *exp, | |
63 | enum noside noside, | |
64 | value *func, const char *var); | |
55bdbff8 TT |
65 | extern struct value *eval_op_register (struct type *expect_type, |
66 | struct expression *exp, | |
67 | enum noside noside, const char *name); | |
b50db09f TT |
68 | extern struct value *eval_op_string (struct type *expect_type, |
69 | struct expression *exp, | |
70 | enum noside noside, int len, | |
71 | const char *string); | |
1594e0bb TT |
72 | extern struct value *eval_op_ternop (struct type *expect_type, |
73 | struct expression *exp, | |
74 | enum noside noside, | |
75 | struct value *array, struct value *low, | |
76 | struct value *upper); | |
808b22cf TT |
77 | extern struct value *eval_op_structop_struct (struct type *expect_type, |
78 | struct expression *exp, | |
79 | enum noside noside, | |
80 | struct value *arg1, | |
81 | const char *string); | |
ab0609be TT |
82 | extern struct value *eval_op_structop_ptr (struct type *expect_type, |
83 | struct expression *exp, | |
84 | enum noside noside, | |
85 | struct value *arg1, | |
86 | const char *string); | |
07f724a8 TT |
87 | extern struct value *eval_op_member (struct type *expect_type, |
88 | struct expression *exp, | |
89 | enum noside noside, | |
90 | struct value *arg1, struct value *arg2); | |
e51e26a0 TT |
91 | extern struct value *eval_op_concat (struct type *expect_type, |
92 | struct expression *exp, | |
93 | enum noside noside, | |
94 | struct value *arg1, struct value *arg2); | |
a94323b6 TT |
95 | extern struct value *eval_op_add (struct type *expect_type, |
96 | struct expression *exp, | |
97 | enum noside noside, | |
98 | struct value *arg1, struct value *arg2); | |
5133d78b TT |
99 | extern struct value *eval_op_sub (struct type *expect_type, |
100 | struct expression *exp, | |
101 | enum noside noside, | |
102 | struct value *arg1, struct value *arg2); | |
373907ff TT |
103 | extern struct value *eval_op_binary (struct type *expect_type, |
104 | struct expression *exp, | |
105 | enum noside noside, enum exp_opcode op, | |
106 | struct value *arg1, struct value *arg2); | |
224d6424 TT |
107 | extern struct value *eval_op_subscript (struct type *expect_type, |
108 | struct expression *exp, | |
109 | enum noside noside, enum exp_opcode op, | |
110 | struct value *arg1, | |
111 | struct value *arg2); | |
46916f2b TT |
112 | extern struct value *eval_op_equal (struct type *expect_type, |
113 | struct expression *exp, | |
114 | enum noside noside, enum exp_opcode op, | |
115 | struct value *arg1, | |
116 | struct value *arg2); | |
117 | extern struct value *eval_op_notequal (struct type *expect_type, | |
118 | struct expression *exp, | |
119 | enum noside noside, enum exp_opcode op, | |
120 | struct value *arg1, | |
121 | struct value *arg2); | |
122 | extern struct value *eval_op_less (struct type *expect_type, | |
123 | struct expression *exp, | |
124 | enum noside noside, enum exp_opcode op, | |
125 | struct value *arg1, | |
126 | struct value *arg2); | |
127 | extern struct value *eval_op_gtr (struct type *expect_type, | |
128 | struct expression *exp, | |
129 | enum noside noside, enum exp_opcode op, | |
130 | struct value *arg1, | |
131 | struct value *arg2); | |
132 | extern struct value *eval_op_geq (struct type *expect_type, | |
133 | struct expression *exp, | |
134 | enum noside noside, enum exp_opcode op, | |
135 | struct value *arg1, | |
136 | struct value *arg2); | |
137 | extern struct value *eval_op_leq (struct type *expect_type, | |
138 | struct expression *exp, | |
139 | enum noside noside, enum exp_opcode op, | |
140 | struct value *arg1, | |
141 | struct value *arg2); | |
d4eff4c1 TT |
142 | extern struct value *eval_op_repeat (struct type *expect_type, |
143 | struct expression *exp, | |
144 | enum noside noside, enum exp_opcode op, | |
145 | struct value *arg1, | |
146 | struct value *arg2); | |
9307d17b TT |
147 | extern struct value *eval_op_plus (struct type *expect_type, |
148 | struct expression *exp, | |
149 | enum noside noside, enum exp_opcode op, | |
150 | struct value *arg1); | |
151 | extern struct value *eval_op_neg (struct type *expect_type, | |
152 | struct expression *exp, | |
153 | enum noside noside, enum exp_opcode op, | |
154 | struct value *arg1); | |
155 | extern struct value *eval_op_complement (struct type *expect_type, | |
156 | struct expression *exp, | |
157 | enum noside noside, | |
158 | enum exp_opcode op, | |
159 | struct value *arg1); | |
160 | extern struct value *eval_op_lognot (struct type *expect_type, | |
161 | struct expression *exp, | |
162 | enum noside noside, | |
163 | enum exp_opcode op, | |
164 | struct value *arg1); | |
6d89e296 TT |
165 | extern struct value *eval_op_preinc (struct type *expect_type, |
166 | struct expression *exp, | |
167 | enum noside noside, | |
168 | enum exp_opcode op, | |
169 | struct value *arg1); | |
170 | extern struct value *eval_op_predec (struct type *expect_type, | |
171 | struct expression *exp, | |
172 | enum noside noside, | |
173 | enum exp_opcode op, | |
174 | struct value *arg1); | |
175 | extern struct value *eval_op_postinc (struct type *expect_type, | |
176 | struct expression *exp, | |
177 | enum noside noside, | |
178 | enum exp_opcode op, | |
179 | struct value *arg1); | |
180 | extern struct value *eval_op_postdec (struct type *expect_type, | |
181 | struct expression *exp, | |
182 | enum noside noside, | |
183 | enum exp_opcode op, | |
184 | struct value *arg1); | |
876469ff TT |
185 | extern struct value *eval_op_ind (struct type *expect_type, |
186 | struct expression *exp, | |
187 | enum noside noside, | |
188 | struct value *arg1); | |
5b5f5140 TT |
189 | extern struct value *eval_op_type (struct type *expect_type, |
190 | struct expression *exp, | |
191 | enum noside noside, struct type *type); | |
d5ab122c | 192 | |
e2803273 TT |
193 | namespace expr |
194 | { | |
195 | ||
196 | /* The check_objfile overloads are used to check whether a particular | |
197 | component of some operation references an objfile. The passed-in | |
198 | objfile will never be a debug objfile. */ | |
199 | ||
200 | /* See if EXP_OBJFILE matches OBJFILE. */ | |
201 | static inline bool | |
202 | check_objfile (struct objfile *exp_objfile, struct objfile *objfile) | |
203 | { | |
204 | if (exp_objfile->separate_debug_objfile_backlink) | |
205 | exp_objfile = exp_objfile->separate_debug_objfile_backlink; | |
206 | return exp_objfile == objfile; | |
207 | } | |
208 | ||
209 | static inline bool | |
210 | check_objfile (struct type *type, struct objfile *objfile) | |
211 | { | |
212 | struct objfile *ty_objfile = type->objfile_owner (); | |
213 | if (ty_objfile != nullptr) | |
214 | return check_objfile (ty_objfile, objfile); | |
215 | return false; | |
216 | } | |
217 | ||
218 | static inline bool | |
219 | check_objfile (struct symbol *sym, struct objfile *objfile) | |
220 | { | |
221 | return check_objfile (symbol_objfile (sym), objfile); | |
222 | } | |
223 | ||
224 | static inline bool | |
225 | check_objfile (const struct block *block, struct objfile *objfile) | |
226 | { | |
227 | return check_objfile (block_objfile (block), objfile); | |
228 | } | |
229 | ||
230 | static inline bool | |
231 | check_objfile (minimal_symbol *minsym, struct objfile *objfile) | |
232 | { | |
233 | /* This may seem strange but minsyms are only used with an objfile | |
234 | as well. */ | |
235 | return false; | |
236 | } | |
237 | ||
238 | static inline bool | |
239 | check_objfile (internalvar *ivar, struct objfile *objfile) | |
240 | { | |
241 | return false; | |
242 | } | |
243 | ||
244 | static inline bool | |
245 | check_objfile (const std::string &str, struct objfile *objfile) | |
246 | { | |
247 | return false; | |
248 | } | |
249 | ||
250 | static inline bool | |
251 | check_objfile (const operation_up &op, struct objfile *objfile) | |
252 | { | |
253 | return op->uses_objfile (objfile); | |
254 | } | |
255 | ||
256 | static inline bool | |
257 | check_objfile (enum exp_opcode val, struct objfile *objfile) | |
258 | { | |
259 | return false; | |
260 | } | |
261 | ||
262 | static inline bool | |
263 | check_objfile (ULONGEST val, struct objfile *objfile) | |
264 | { | |
265 | return false; | |
266 | } | |
267 | ||
268 | template<typename T> | |
269 | static inline bool | |
270 | check_objfile (enum_flags<T> val, struct objfile *objfile) | |
271 | { | |
272 | return false; | |
273 | } | |
274 | ||
275 | template<typename T> | |
276 | static inline bool | |
277 | check_objfile (const std::vector<T> &collection, struct objfile *objfile) | |
278 | { | |
279 | for (const auto &item : collection) | |
280 | { | |
281 | if (check_objfile (item, objfile)) | |
282 | return true; | |
283 | } | |
284 | return false; | |
285 | } | |
286 | ||
287 | template<typename S, typename T> | |
288 | static inline bool | |
289 | check_objfile (const std::pair<S, T> &item, struct objfile *objfile) | |
290 | { | |
291 | return (check_objfile (item.first, objfile) | |
292 | || check_objfile (item.second, objfile)); | |
293 | } | |
294 | ||
de401988 TT |
295 | static inline void |
296 | dump_for_expression (struct ui_file *stream, int depth, | |
297 | const operation_up &op) | |
298 | { | |
299 | op->dump (stream, depth); | |
300 | } | |
301 | ||
302 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
303 | enum exp_opcode op); | |
304 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
305 | const std::string &str); | |
306 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
307 | struct type *type); | |
308 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
309 | CORE_ADDR addr); | |
310 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
311 | internalvar *ivar); | |
312 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
313 | symbol *sym); | |
314 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
315 | minimal_symbol *msym); | |
316 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
317 | const block *bl); | |
318 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
319 | type_instance_flags flags); | |
320 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
321 | enum c_string_type_values flags); | |
322 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
323 | enum range_flag flags); | |
324 | extern void dump_for_expression (struct ui_file *stream, int depth, | |
325 | objfile *objf); | |
326 | ||
327 | template<typename T> | |
328 | void | |
329 | dump_for_expression (struct ui_file *stream, int depth, | |
330 | const std::vector<T> &vals) | |
331 | { | |
332 | fprintf_filtered (stream, _("%*sVector:\n"), depth, ""); | |
333 | for (auto &item : vals) | |
334 | dump_for_expression (stream, depth + 1, item); | |
335 | } | |
336 | ||
337 | template<typename X, typename Y> | |
338 | void | |
339 | dump_for_expression (struct ui_file *stream, int depth, | |
340 | const std::pair<X, Y> &vals) | |
341 | { | |
342 | dump_for_expression (stream, depth, vals.first); | |
343 | dump_for_expression (stream, depth, vals.second); | |
344 | } | |
345 | ||
e2803273 TT |
346 | /* Base class for most concrete operations. This class holds data, |
347 | specified via template parameters, and supplies generic | |
348 | implementations of the 'dump' and 'uses_objfile' methods. */ | |
349 | template<typename... Arg> | |
350 | class tuple_holding_operation : public operation | |
351 | { | |
352 | public: | |
353 | ||
354 | explicit tuple_holding_operation (Arg... args) | |
355 | : m_storage (std::forward<Arg> (args)...) | |
356 | { | |
357 | } | |
358 | ||
359 | DISABLE_COPY_AND_ASSIGN (tuple_holding_operation); | |
360 | ||
361 | bool uses_objfile (struct objfile *objfile) const override | |
362 | { | |
363 | return do_check_objfile<0, Arg...> (objfile, m_storage); | |
364 | } | |
365 | ||
366 | void dump (struct ui_file *stream, int depth) const override | |
367 | { | |
de401988 TT |
368 | dump_for_expression (stream, depth, opcode ()); |
369 | do_dump<0, Arg...> (stream, depth + 1, m_storage); | |
e2803273 TT |
370 | } |
371 | ||
372 | protected: | |
373 | ||
374 | /* Storage for the data. */ | |
375 | std::tuple<Arg...> m_storage; | |
376 | ||
377 | private: | |
378 | ||
379 | /* do_dump does the work of dumping the data. */ | |
380 | template<int I, typename... T> | |
381 | typename std::enable_if<I == sizeof... (T), void>::type | |
382 | do_dump (struct ui_file *stream, int depth, const std::tuple<T...> &value) | |
383 | const | |
384 | { | |
385 | } | |
386 | ||
387 | template<int I, typename... T> | |
388 | typename std::enable_if<I < sizeof... (T), void>::type | |
389 | do_dump (struct ui_file *stream, int depth, const std::tuple<T...> &value) | |
390 | const | |
391 | { | |
de401988 | 392 | dump_for_expression (stream, depth, std::get<I> (value)); |
e2803273 TT |
393 | do_dump<I + 1, T...> (stream, depth, value); |
394 | } | |
395 | ||
396 | /* do_check_objfile does the work of checking whether this object | |
397 | refers to OBJFILE. */ | |
398 | template<int I, typename... T> | |
399 | typename std::enable_if<I == sizeof... (T), bool>::type | |
400 | do_check_objfile (struct objfile *objfile, const std::tuple<T...> &value) | |
401 | const | |
402 | { | |
403 | return false; | |
404 | } | |
405 | ||
406 | template<int I, typename... T> | |
407 | typename std::enable_if<I < sizeof... (T), bool>::type | |
408 | do_check_objfile (struct objfile *objfile, const std::tuple<T...> &value) | |
409 | const | |
410 | { | |
411 | if (check_objfile (std::get<I> (value), objfile)) | |
412 | return true; | |
413 | return do_check_objfile<I + 1, T...> (objfile, value); | |
414 | } | |
415 | }; | |
416 | ||
417 | /* The check_constant overloads are used to decide whether a given | |
418 | concrete operation is a constant. This is done by checking the | |
419 | operands. */ | |
420 | ||
421 | static inline bool | |
422 | check_constant (const operation_up &item) | |
423 | { | |
424 | return item->constant_p (); | |
425 | } | |
426 | ||
427 | static inline bool | |
428 | check_constant (struct minimal_symbol *msym) | |
429 | { | |
430 | return false; | |
431 | } | |
432 | ||
433 | static inline bool | |
434 | check_constant (struct type *type) | |
435 | { | |
436 | return true; | |
437 | } | |
438 | ||
439 | static inline bool | |
440 | check_constant (const struct block *block) | |
441 | { | |
442 | return true; | |
443 | } | |
444 | ||
445 | static inline bool | |
446 | check_constant (const std::string &str) | |
447 | { | |
448 | return true; | |
449 | } | |
450 | ||
451 | static inline bool | |
452 | check_constant (struct objfile *objfile) | |
453 | { | |
454 | return true; | |
455 | } | |
456 | ||
457 | static inline bool | |
458 | check_constant (ULONGEST cst) | |
459 | { | |
460 | return true; | |
461 | } | |
462 | ||
463 | static inline bool | |
464 | check_constant (struct symbol *sym) | |
465 | { | |
466 | enum address_class sc = SYMBOL_CLASS (sym); | |
467 | return (sc == LOC_BLOCK | |
468 | || sc == LOC_CONST | |
469 | || sc == LOC_CONST_BYTES | |
470 | || sc == LOC_LABEL); | |
471 | } | |
472 | ||
473 | template<typename T> | |
474 | static inline bool | |
475 | check_constant (const std::vector<T> &collection) | |
476 | { | |
477 | for (const auto &item : collection) | |
478 | if (!check_constant (item)) | |
479 | return false; | |
480 | return true; | |
481 | } | |
482 | ||
483 | template<typename S, typename T> | |
484 | static inline bool | |
485 | check_constant (const std::pair<S, T> &item) | |
486 | { | |
487 | return check_constant (item.first) && check_constant (item.second); | |
488 | } | |
489 | ||
490 | /* Base class for concrete operations. This class supplies an | |
491 | implementation of 'constant_p' that works by checking the | |
492 | operands. */ | |
493 | template<typename... Arg> | |
494 | class maybe_constant_operation | |
495 | : public tuple_holding_operation<Arg...> | |
496 | { | |
497 | public: | |
498 | ||
499 | using tuple_holding_operation<Arg...>::tuple_holding_operation; | |
500 | ||
501 | bool constant_p () const override | |
502 | { | |
503 | return do_check_constant<0, Arg...> (this->m_storage); | |
504 | } | |
505 | ||
506 | private: | |
507 | ||
508 | template<int I, typename... T> | |
509 | typename std::enable_if<I == sizeof... (T), bool>::type | |
510 | do_check_constant (const std::tuple<T...> &value) const | |
511 | { | |
512 | return true; | |
513 | } | |
514 | ||
515 | template<int I, typename... T> | |
516 | typename std::enable_if<I < sizeof... (T), bool>::type | |
517 | do_check_constant (const std::tuple<T...> &value) const | |
518 | { | |
519 | if (!check_constant (std::get<I> (value))) | |
520 | return false; | |
521 | return do_check_constant<I + 1, T...> (value); | |
522 | } | |
523 | }; | |
524 | ||
cae26a0c TT |
525 | /* A floating-point constant. The constant is encoded in the target |
526 | format. */ | |
527 | ||
528 | typedef std::array<gdb_byte, 16> float_data; | |
529 | ||
530 | /* An operation that holds a floating-point constant of a given | |
531 | type. | |
532 | ||
533 | This does not need the facilities provided by | |
534 | tuple_holding_operation, so it does not use it. */ | |
535 | class float_const_operation | |
536 | : public operation | |
537 | { | |
538 | public: | |
539 | ||
540 | float_const_operation (struct type *type, float_data data) | |
541 | : m_type (type), | |
542 | m_data (data) | |
543 | { | |
544 | } | |
545 | ||
546 | value *evaluate (struct type *expect_type, | |
547 | struct expression *exp, | |
548 | enum noside noside) override | |
549 | { | |
550 | return value_from_contents (m_type, m_data.data ()); | |
551 | } | |
552 | ||
553 | enum exp_opcode opcode () const override | |
554 | { return OP_FLOAT; } | |
555 | ||
556 | bool constant_p () const override | |
557 | { return true; } | |
558 | ||
559 | void dump (struct ui_file *stream, int depth) const override; | |
560 | ||
561 | private: | |
562 | ||
563 | struct type *m_type; | |
564 | float_data m_data; | |
565 | }; | |
566 | ||
d5ab122c TT |
567 | class scope_operation |
568 | : public maybe_constant_operation<struct type *, std::string> | |
569 | { | |
570 | public: | |
571 | ||
572 | using maybe_constant_operation::maybe_constant_operation; | |
573 | ||
574 | value *evaluate (struct type *expect_type, | |
575 | struct expression *exp, | |
576 | enum noside noside) override | |
577 | { | |
578 | return eval_op_scope (expect_type, exp, noside, | |
579 | std::get<0> (m_storage), | |
580 | std::get<1> (m_storage).c_str ()); | |
581 | } | |
582 | ||
583 | value *evaluate_for_address (struct expression *exp, | |
584 | enum noside noside) override; | |
585 | ||
586 | enum exp_opcode opcode () const override | |
587 | { return OP_SCOPE; } | |
588 | ||
589 | protected: | |
590 | ||
591 | void do_generate_ax (struct expression *exp, | |
592 | struct agent_expr *ax, | |
593 | struct axs_value *value, | |
594 | struct type *cast_type) | |
595 | override; | |
596 | }; | |
597 | ||
d336c29e TT |
598 | class long_const_operation |
599 | : public tuple_holding_operation<struct type *, LONGEST> | |
600 | { | |
601 | public: | |
602 | ||
603 | using tuple_holding_operation::tuple_holding_operation; | |
604 | ||
605 | value *evaluate (struct type *expect_type, | |
606 | struct expression *exp, | |
607 | enum noside noside) override | |
608 | { | |
609 | return value_from_longest (std::get<0> (m_storage), | |
610 | std::get<1> (m_storage)); | |
611 | } | |
612 | ||
613 | enum exp_opcode opcode () const override | |
614 | { return OP_LONG; } | |
615 | ||
616 | bool constant_p () const override | |
617 | { return true; } | |
618 | ||
619 | protected: | |
620 | ||
621 | void do_generate_ax (struct expression *exp, | |
622 | struct agent_expr *ax, | |
623 | struct axs_value *value, | |
624 | struct type *cast_type) | |
625 | override; | |
626 | }; | |
627 | ||
0c8effa3 TT |
628 | class var_msym_value_operation |
629 | : public maybe_constant_operation<minimal_symbol *, struct objfile *> | |
630 | { | |
631 | public: | |
632 | ||
633 | using maybe_constant_operation::maybe_constant_operation; | |
634 | ||
635 | value *evaluate (struct type *expect_type, | |
636 | struct expression *exp, | |
637 | enum noside noside) override | |
638 | { | |
639 | return eval_op_var_msym_value (expect_type, exp, noside, m_outermost, | |
640 | std::get<0> (m_storage), | |
641 | std::get<1> (m_storage)); | |
642 | } | |
643 | ||
644 | value *evaluate_for_sizeof (struct expression *exp, enum noside noside) | |
645 | override; | |
646 | ||
647 | value *evaluate_for_address (struct expression *exp, enum noside noside) | |
648 | override; | |
649 | ||
650 | value *evaluate_for_cast (struct type *expect_type, | |
651 | struct expression *exp, | |
652 | enum noside noside) override; | |
653 | ||
654 | enum exp_opcode opcode () const override | |
655 | { return OP_VAR_MSYM_VALUE; } | |
656 | ||
657 | void set_outermost () override | |
658 | { | |
659 | m_outermost = true; | |
660 | } | |
661 | ||
662 | protected: | |
663 | ||
664 | /* True if this is the outermost operation in the expression. */ | |
665 | bool m_outermost = false; | |
666 | ||
667 | void do_generate_ax (struct expression *exp, | |
668 | struct agent_expr *ax, | |
669 | struct axs_value *value, | |
670 | struct type *cast_type) | |
671 | override; | |
672 | }; | |
673 | ||
b5cc3923 TT |
674 | class var_entry_value_operation |
675 | : public tuple_holding_operation<symbol *> | |
676 | { | |
677 | public: | |
678 | ||
679 | using tuple_holding_operation::tuple_holding_operation; | |
680 | ||
681 | value *evaluate (struct type *expect_type, | |
682 | struct expression *exp, | |
683 | enum noside noside) override | |
684 | { | |
685 | return eval_op_var_entry_value (expect_type, exp, noside, | |
686 | std::get<0> (m_storage)); | |
687 | } | |
688 | ||
689 | enum exp_opcode opcode () const override | |
690 | { return OP_VAR_ENTRY_VALUE; } | |
691 | }; | |
692 | ||
17679395 TT |
693 | class func_static_var_operation |
694 | : public maybe_constant_operation<operation_up, std::string> | |
695 | { | |
696 | public: | |
697 | ||
698 | using maybe_constant_operation::maybe_constant_operation; | |
699 | ||
700 | value *evaluate (struct type *expect_type, | |
701 | struct expression *exp, | |
702 | enum noside noside) override | |
703 | { | |
704 | value *func = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
705 | return eval_op_func_static_var (expect_type, exp, noside, func, | |
706 | std::get<1> (m_storage).c_str ()); | |
707 | } | |
708 | ||
709 | enum exp_opcode opcode () const override | |
710 | { return OP_FUNC_STATIC_VAR; } | |
711 | }; | |
712 | ||
247d935b TT |
713 | class last_operation |
714 | : public tuple_holding_operation<int> | |
715 | { | |
716 | public: | |
717 | ||
718 | using tuple_holding_operation::tuple_holding_operation; | |
719 | ||
720 | value *evaluate (struct type *expect_type, | |
721 | struct expression *exp, | |
722 | enum noside noside) override | |
723 | { | |
724 | return access_value_history (std::get<0> (m_storage)); | |
725 | } | |
726 | ||
727 | enum exp_opcode opcode () const override | |
728 | { return OP_LAST; } | |
729 | }; | |
730 | ||
55bdbff8 TT |
731 | class register_operation |
732 | : public tuple_holding_operation<std::string> | |
733 | { | |
734 | public: | |
735 | ||
736 | using tuple_holding_operation::tuple_holding_operation; | |
737 | ||
738 | value *evaluate (struct type *expect_type, | |
739 | struct expression *exp, | |
740 | enum noside noside) override | |
741 | { | |
742 | return eval_op_register (expect_type, exp, noside, | |
743 | std::get<0> (m_storage).c_str ()); | |
744 | } | |
745 | ||
746 | enum exp_opcode opcode () const override | |
747 | { return OP_REGISTER; } | |
748 | ||
749 | protected: | |
750 | ||
751 | void do_generate_ax (struct expression *exp, | |
752 | struct agent_expr *ax, | |
753 | struct axs_value *value, | |
754 | struct type *cast_type) | |
755 | override; | |
756 | }; | |
757 | ||
e6985c5e TT |
758 | class bool_operation |
759 | : public tuple_holding_operation<bool> | |
760 | { | |
761 | public: | |
762 | ||
763 | using tuple_holding_operation::tuple_holding_operation; | |
764 | ||
765 | value *evaluate (struct type *expect_type, | |
766 | struct expression *exp, | |
767 | enum noside noside) override | |
768 | { | |
769 | struct type *type = language_bool_type (exp->language_defn, exp->gdbarch); | |
770 | return value_from_longest (type, std::get<0> (m_storage)); | |
771 | } | |
772 | ||
773 | enum exp_opcode opcode () const override | |
774 | { return OP_BOOL; } | |
775 | ||
776 | bool constant_p () const override | |
777 | { return true; } | |
778 | }; | |
779 | ||
e6e01e16 TT |
780 | class internalvar_operation |
781 | : public tuple_holding_operation<internalvar *> | |
782 | { | |
783 | public: | |
784 | ||
785 | using tuple_holding_operation::tuple_holding_operation; | |
786 | ||
787 | value *evaluate (struct type *expect_type, | |
788 | struct expression *exp, | |
789 | enum noside noside) override | |
790 | { | |
791 | return value_of_internalvar (exp->gdbarch, | |
792 | std::get<0> (m_storage)); | |
793 | } | |
794 | ||
795 | internalvar *get_internalvar () const | |
796 | { | |
797 | return std::get<0> (m_storage); | |
798 | } | |
799 | ||
800 | enum exp_opcode opcode () const override | |
801 | { return OP_INTERNALVAR; } | |
802 | ||
803 | protected: | |
804 | ||
805 | void do_generate_ax (struct expression *exp, | |
806 | struct agent_expr *ax, | |
807 | struct axs_value *value, | |
808 | struct type *cast_type) | |
809 | override; | |
810 | }; | |
811 | ||
b50db09f TT |
812 | class string_operation |
813 | : public tuple_holding_operation<std::string> | |
814 | { | |
815 | public: | |
816 | ||
817 | using tuple_holding_operation::tuple_holding_operation; | |
818 | ||
819 | value *evaluate (struct type *expect_type, | |
820 | struct expression *exp, | |
821 | enum noside noside) override | |
822 | { | |
823 | const std::string &str = std::get<0> (m_storage); | |
824 | return eval_op_string (expect_type, exp, noside, | |
825 | str.size (), str.c_str ()); | |
826 | } | |
827 | ||
828 | enum exp_opcode opcode () const override | |
829 | { return OP_STRING; } | |
830 | }; | |
831 | ||
1594e0bb TT |
832 | class ternop_slice_operation |
833 | : public maybe_constant_operation<operation_up, operation_up, operation_up> | |
834 | { | |
835 | public: | |
836 | ||
837 | using maybe_constant_operation::maybe_constant_operation; | |
838 | ||
839 | value *evaluate (struct type *expect_type, | |
840 | struct expression *exp, | |
841 | enum noside noside) override | |
842 | { | |
843 | struct value *array | |
844 | = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
845 | struct value *low | |
846 | = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
847 | struct value *upper | |
848 | = std::get<2> (m_storage)->evaluate (nullptr, exp, noside); | |
849 | return eval_op_ternop (expect_type, exp, noside, array, low, upper); | |
850 | } | |
851 | ||
852 | enum exp_opcode opcode () const override | |
853 | { return TERNOP_SLICE; } | |
854 | }; | |
855 | ||
9186293f TT |
856 | class ternop_cond_operation |
857 | : public maybe_constant_operation<operation_up, operation_up, operation_up> | |
858 | { | |
859 | public: | |
860 | ||
861 | using maybe_constant_operation::maybe_constant_operation; | |
862 | ||
863 | value *evaluate (struct type *expect_type, | |
864 | struct expression *exp, | |
865 | enum noside noside) override | |
866 | { | |
867 | struct value *val | |
868 | = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
869 | ||
870 | if (value_logical_not (val)) | |
871 | return std::get<2> (m_storage)->evaluate (nullptr, exp, noside); | |
872 | return std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
873 | } | |
874 | ||
875 | enum exp_opcode opcode () const override | |
876 | { return TERNOP_COND; } | |
877 | ||
878 | protected: | |
879 | ||
880 | void do_generate_ax (struct expression *exp, | |
881 | struct agent_expr *ax, | |
882 | struct axs_value *value, | |
883 | struct type *cast_type) | |
884 | override; | |
885 | }; | |
886 | ||
8cfd3e95 TT |
887 | class complex_operation |
888 | : public maybe_constant_operation<operation_up, operation_up, struct type *> | |
889 | { | |
890 | public: | |
891 | ||
892 | using maybe_constant_operation::maybe_constant_operation; | |
893 | ||
894 | value *evaluate (struct type *expect_type, | |
895 | struct expression *exp, | |
896 | enum noside noside) override | |
897 | { | |
898 | value *real = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
899 | value *imag = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
900 | return value_literal_complex (real, imag, | |
901 | std::get<2> (m_storage)); | |
902 | } | |
903 | ||
904 | enum exp_opcode opcode () const override | |
905 | { return OP_COMPLEX; } | |
906 | }; | |
907 | ||
808b22cf TT |
908 | class structop_base_operation |
909 | : public tuple_holding_operation<operation_up, std::string> | |
910 | { | |
911 | public: | |
912 | ||
913 | /* Used for completion. Return the field name. */ | |
914 | const std::string &get_string () const | |
915 | { | |
916 | return std::get<1> (m_storage); | |
917 | } | |
918 | ||
919 | /* Used for completion. Evaluate the LHS for type. */ | |
920 | value *evaluate_lhs (struct expression *exp) | |
921 | { | |
922 | return std::get<0> (m_storage)->evaluate (nullptr, exp, | |
923 | EVAL_AVOID_SIDE_EFFECTS); | |
924 | } | |
925 | ||
926 | protected: | |
927 | ||
928 | using tuple_holding_operation::tuple_holding_operation; | |
929 | }; | |
930 | ||
931 | class structop_operation | |
932 | : public structop_base_operation | |
933 | { | |
934 | public: | |
935 | ||
936 | using structop_base_operation::structop_base_operation; | |
937 | ||
938 | value *evaluate (struct type *expect_type, | |
939 | struct expression *exp, | |
940 | enum noside noside) override | |
941 | { | |
942 | value *val =std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
943 | return eval_op_structop_struct (expect_type, exp, noside, val, | |
944 | std::get<1> (m_storage).c_str ()); | |
945 | } | |
946 | ||
947 | enum exp_opcode opcode () const override | |
948 | { return STRUCTOP_STRUCT; } | |
949 | ||
950 | protected: | |
951 | ||
952 | void do_generate_ax (struct expression *exp, | |
953 | struct agent_expr *ax, | |
954 | struct axs_value *value, | |
955 | struct type *cast_type) | |
956 | override | |
957 | { | |
958 | gen_expr_structop (exp, STRUCTOP_STRUCT, | |
959 | std::get<0> (this->m_storage).get (), | |
960 | std::get<1> (this->m_storage).c_str (), | |
961 | ax, value); | |
962 | } | |
963 | }; | |
964 | ||
ab0609be TT |
965 | class structop_ptr_operation |
966 | : public structop_base_operation | |
967 | { | |
968 | public: | |
969 | ||
970 | using structop_base_operation::structop_base_operation; | |
971 | ||
972 | value *evaluate (struct type *expect_type, | |
973 | struct expression *exp, | |
974 | enum noside noside) override | |
975 | { | |
976 | value *val = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
977 | return eval_op_structop_ptr (expect_type, exp, noside, val, | |
978 | std::get<1> (m_storage).c_str ()); | |
979 | } | |
980 | ||
981 | enum exp_opcode opcode () const override | |
982 | { return STRUCTOP_PTR; } | |
983 | ||
984 | protected: | |
985 | ||
986 | void do_generate_ax (struct expression *exp, | |
987 | struct agent_expr *ax, | |
988 | struct axs_value *value, | |
989 | struct type *cast_type) | |
990 | override | |
991 | { | |
992 | gen_expr_structop (exp, STRUCTOP_PTR, | |
993 | std::get<0> (this->m_storage).get (), | |
994 | std::get<1> (this->m_storage).c_str (), | |
995 | ax, value); | |
996 | } | |
997 | }; | |
998 | ||
07f724a8 TT |
999 | class structop_member_operation |
1000 | : public tuple_holding_operation<operation_up, operation_up> | |
1001 | { | |
1002 | public: | |
1003 | ||
1004 | using tuple_holding_operation::tuple_holding_operation; | |
1005 | ||
1006 | value *evaluate (struct type *expect_type, | |
1007 | struct expression *exp, | |
1008 | enum noside noside) override | |
1009 | { | |
1010 | value *lhs | |
1011 | = std::get<0> (m_storage)->evaluate_for_address (exp, noside); | |
1012 | value *rhs | |
1013 | = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
1014 | return eval_op_member (expect_type, exp, noside, lhs, rhs); | |
1015 | } | |
1016 | ||
1017 | enum exp_opcode opcode () const override | |
1018 | { return STRUCTOP_MEMBER; } | |
1019 | }; | |
1020 | ||
1021 | class structop_mptr_operation | |
1022 | : public tuple_holding_operation<operation_up, operation_up> | |
1023 | { | |
1024 | public: | |
1025 | ||
1026 | using tuple_holding_operation::tuple_holding_operation; | |
1027 | ||
1028 | value *evaluate (struct type *expect_type, | |
1029 | struct expression *exp, | |
1030 | enum noside noside) override | |
1031 | { | |
1032 | value *lhs | |
1033 | = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
1034 | value *rhs | |
1035 | = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
1036 | return eval_op_member (expect_type, exp, noside, lhs, rhs); | |
1037 | } | |
1038 | ||
1039 | enum exp_opcode opcode () const override | |
1040 | { return STRUCTOP_MPTR; } | |
1041 | }; | |
1042 | ||
e51e26a0 TT |
1043 | class concat_operation |
1044 | : public maybe_constant_operation<operation_up, operation_up> | |
1045 | { | |
1046 | public: | |
1047 | ||
1048 | using maybe_constant_operation::maybe_constant_operation; | |
1049 | ||
1050 | value *evaluate (struct type *expect_type, | |
1051 | struct expression *exp, | |
1052 | enum noside noside) override | |
1053 | { | |
1054 | value *lhs | |
1055 | = std::get<0> (m_storage)->evaluate_with_coercion (exp, noside); | |
1056 | value *rhs | |
1057 | = std::get<1> (m_storage)->evaluate_with_coercion (exp, noside); | |
1058 | return eval_op_concat (expect_type, exp, noside, lhs, rhs); | |
1059 | } | |
1060 | ||
1061 | enum exp_opcode opcode () const override | |
1062 | { return BINOP_CONCAT; } | |
1063 | }; | |
1064 | ||
a94323b6 TT |
1065 | class add_operation |
1066 | : public maybe_constant_operation<operation_up, operation_up> | |
1067 | { | |
1068 | public: | |
1069 | ||
1070 | using maybe_constant_operation::maybe_constant_operation; | |
1071 | ||
1072 | value *evaluate (struct type *expect_type, | |
1073 | struct expression *exp, | |
1074 | enum noside noside) override | |
1075 | { | |
1076 | value *lhs | |
1077 | = std::get<0> (m_storage)->evaluate_with_coercion (exp, noside); | |
1078 | value *rhs | |
1079 | = std::get<1> (m_storage)->evaluate_with_coercion (exp, noside); | |
1080 | return eval_op_add (expect_type, exp, noside, lhs, rhs); | |
1081 | } | |
1082 | ||
1083 | enum exp_opcode opcode () const override | |
1084 | { return BINOP_ADD; } | |
1085 | ||
1086 | protected: | |
1087 | ||
1088 | void do_generate_ax (struct expression *exp, | |
1089 | struct agent_expr *ax, | |
1090 | struct axs_value *value, | |
1091 | struct type *cast_type) | |
1092 | override | |
1093 | { | |
1094 | gen_expr_binop (exp, BINOP_ADD, | |
1095 | std::get<0> (this->m_storage).get (), | |
1096 | std::get<1> (this->m_storage).get (), | |
1097 | ax, value); | |
1098 | } | |
1099 | }; | |
1100 | ||
5133d78b TT |
1101 | class sub_operation |
1102 | : public maybe_constant_operation<operation_up, operation_up> | |
1103 | { | |
1104 | public: | |
1105 | ||
1106 | using maybe_constant_operation::maybe_constant_operation; | |
1107 | ||
1108 | value *evaluate (struct type *expect_type, | |
1109 | struct expression *exp, | |
1110 | enum noside noside) override | |
1111 | { | |
1112 | value *lhs | |
1113 | = std::get<0> (m_storage)->evaluate_with_coercion (exp, noside); | |
1114 | value *rhs | |
1115 | = std::get<1> (m_storage)->evaluate_with_coercion (exp, noside); | |
1116 | return eval_op_sub (expect_type, exp, noside, lhs, rhs); | |
1117 | } | |
1118 | ||
1119 | enum exp_opcode opcode () const override | |
1120 | { return BINOP_SUB; } | |
1121 | ||
1122 | protected: | |
1123 | ||
1124 | void do_generate_ax (struct expression *exp, | |
1125 | struct agent_expr *ax, | |
1126 | struct axs_value *value, | |
1127 | struct type *cast_type) | |
1128 | override | |
1129 | { | |
1130 | gen_expr_binop (exp, BINOP_SUB, | |
1131 | std::get<0> (this->m_storage).get (), | |
1132 | std::get<1> (this->m_storage).get (), | |
1133 | ax, value); | |
1134 | } | |
1135 | }; | |
1136 | ||
373907ff TT |
1137 | typedef struct value *binary_ftype (struct type *expect_type, |
1138 | struct expression *exp, | |
1139 | enum noside noside, enum exp_opcode op, | |
1140 | struct value *arg1, struct value *arg2); | |
1141 | ||
1142 | template<enum exp_opcode OP, binary_ftype FUNC> | |
1143 | class binop_operation | |
1144 | : public maybe_constant_operation<operation_up, operation_up> | |
1145 | { | |
1146 | public: | |
1147 | ||
1148 | using maybe_constant_operation::maybe_constant_operation; | |
1149 | ||
1150 | value *evaluate (struct type *expect_type, | |
1151 | struct expression *exp, | |
1152 | enum noside noside) override | |
1153 | { | |
1154 | value *lhs | |
1155 | = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
1156 | value *rhs | |
1157 | = std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
1158 | return FUNC (expect_type, exp, noside, OP, lhs, rhs); | |
1159 | } | |
1160 | ||
1161 | enum exp_opcode opcode () const override | |
1162 | { return OP; } | |
1163 | }; | |
1164 | ||
1165 | template<enum exp_opcode OP, binary_ftype FUNC> | |
1166 | class usual_ax_binop_operation | |
1167 | : public binop_operation<OP, FUNC> | |
1168 | { | |
1169 | public: | |
1170 | ||
1171 | using binop_operation<OP, FUNC>::binop_operation; | |
1172 | ||
1173 | protected: | |
1174 | ||
1175 | void do_generate_ax (struct expression *exp, | |
1176 | struct agent_expr *ax, | |
1177 | struct axs_value *value, | |
1178 | struct type *cast_type) | |
1179 | override | |
1180 | { | |
1181 | gen_expr_binop (exp, OP, | |
1182 | std::get<0> (this->m_storage).get (), | |
1183 | std::get<1> (this->m_storage).get (), | |
1184 | ax, value); | |
1185 | } | |
1186 | }; | |
1187 | ||
1188 | using exp_operation = binop_operation<BINOP_EXP, eval_op_binary>; | |
1189 | using intdiv_operation = binop_operation<BINOP_INTDIV, eval_op_binary>; | |
1190 | using mod_operation = binop_operation<BINOP_MOD, eval_op_binary>; | |
1191 | ||
1192 | using mul_operation = usual_ax_binop_operation<BINOP_MUL, eval_op_binary>; | |
1193 | using div_operation = usual_ax_binop_operation<BINOP_DIV, eval_op_binary>; | |
1194 | using rem_operation = usual_ax_binop_operation<BINOP_REM, eval_op_binary>; | |
1195 | using lsh_operation = usual_ax_binop_operation<BINOP_LSH, eval_op_binary>; | |
1196 | using rsh_operation = usual_ax_binop_operation<BINOP_RSH, eval_op_binary>; | |
1197 | using bitwise_and_operation | |
1198 | = usual_ax_binop_operation<BINOP_BITWISE_AND, eval_op_binary>; | |
1199 | using bitwise_ior_operation | |
1200 | = usual_ax_binop_operation<BINOP_BITWISE_IOR, eval_op_binary>; | |
1201 | using bitwise_xor_operation | |
1202 | = usual_ax_binop_operation<BINOP_BITWISE_XOR, eval_op_binary>; | |
1203 | ||
224d6424 TT |
1204 | class subscript_operation |
1205 | : public usual_ax_binop_operation<BINOP_SUBSCRIPT, eval_op_subscript> | |
1206 | { | |
1207 | public: | |
1208 | using usual_ax_binop_operation<BINOP_SUBSCRIPT, | |
1209 | eval_op_subscript>::usual_ax_binop_operation; | |
1210 | ||
1211 | value *evaluate_for_sizeof (struct expression *exp, | |
1212 | enum noside noside) override; | |
1213 | }; | |
1214 | ||
46916f2b TT |
1215 | /* Implementation of comparison operations. */ |
1216 | template<enum exp_opcode OP, binary_ftype FUNC> | |
1217 | class comparison_operation | |
1218 | : public usual_ax_binop_operation<OP, FUNC> | |
1219 | { | |
1220 | public: | |
1221 | ||
1222 | using usual_ax_binop_operation<OP, FUNC>::usual_ax_binop_operation; | |
1223 | ||
1224 | value *evaluate (struct type *expect_type, | |
1225 | struct expression *exp, | |
1226 | enum noside noside) override | |
1227 | { | |
1228 | value *lhs | |
1229 | = std::get<0> (this->m_storage)->evaluate (nullptr, exp, noside); | |
1230 | value *rhs | |
1231 | = std::get<1> (this->m_storage)->evaluate (value_type (lhs), exp, | |
1232 | noside); | |
1233 | return FUNC (expect_type, exp, noside, OP, lhs, rhs); | |
1234 | } | |
1235 | }; | |
1236 | ||
1237 | using equal_operation = comparison_operation<BINOP_EQUAL, eval_op_equal>; | |
1238 | using notequal_operation | |
1239 | = comparison_operation<BINOP_NOTEQUAL, eval_op_notequal>; | |
1240 | using less_operation = comparison_operation<BINOP_LESS, eval_op_less>; | |
1241 | using gtr_operation = comparison_operation<BINOP_GTR, eval_op_gtr>; | |
1242 | using geq_operation = comparison_operation<BINOP_GEQ, eval_op_geq>; | |
1243 | using leq_operation = comparison_operation<BINOP_LEQ, eval_op_leq>; | |
1244 | ||
d4eff4c1 TT |
1245 | /* Implement the GDB '@' repeat operator. */ |
1246 | class repeat_operation | |
1247 | : public binop_operation<BINOP_REPEAT, eval_op_repeat> | |
1248 | { | |
1249 | using binop_operation<BINOP_REPEAT, eval_op_repeat>::binop_operation; | |
1250 | ||
1251 | protected: | |
1252 | ||
1253 | void do_generate_ax (struct expression *exp, | |
1254 | struct agent_expr *ax, | |
1255 | struct axs_value *value, | |
1256 | struct type *cast_type) | |
1257 | override; | |
1258 | }; | |
1259 | ||
ae64ba58 TT |
1260 | /* C-style comma operator. */ |
1261 | class comma_operation | |
1262 | : public maybe_constant_operation<operation_up, operation_up> | |
1263 | { | |
1264 | public: | |
1265 | ||
1266 | using maybe_constant_operation::maybe_constant_operation; | |
1267 | ||
1268 | value *evaluate (struct type *expect_type, | |
1269 | struct expression *exp, | |
1270 | enum noside noside) override | |
1271 | { | |
1272 | /* The left-hand-side is only evaluated for side effects, so don't | |
1273 | bother in other modes. */ | |
1274 | if (noside == EVAL_NORMAL) | |
1275 | std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
1276 | return std::get<1> (m_storage)->evaluate (nullptr, exp, noside); | |
1277 | } | |
1278 | ||
1279 | enum exp_opcode opcode () const override | |
1280 | { return BINOP_COMMA; } | |
1281 | ||
1282 | protected: | |
1283 | ||
1284 | void do_generate_ax (struct expression *exp, | |
1285 | struct agent_expr *ax, | |
1286 | struct axs_value *value, | |
1287 | struct type *cast_type) | |
1288 | override; | |
1289 | }; | |
1290 | ||
9307d17b TT |
1291 | typedef struct value *unary_ftype (struct type *expect_type, |
1292 | struct expression *exp, | |
1293 | enum noside noside, enum exp_opcode op, | |
1294 | struct value *arg1); | |
1295 | ||
1296 | /* Base class for unary operations. */ | |
1297 | template<enum exp_opcode OP, unary_ftype FUNC> | |
1298 | class unop_operation | |
1299 | : public maybe_constant_operation<operation_up> | |
1300 | { | |
1301 | public: | |
1302 | ||
1303 | using maybe_constant_operation::maybe_constant_operation; | |
1304 | ||
1305 | value *evaluate (struct type *expect_type, | |
1306 | struct expression *exp, | |
1307 | enum noside noside) override | |
1308 | { | |
1309 | value *val = std::get<0> (m_storage)->evaluate (nullptr, exp, noside); | |
1310 | return FUNC (expect_type, exp, noside, OP, val); | |
1311 | } | |
1312 | ||
1313 | enum exp_opcode opcode () const override | |
1314 | { return OP; } | |
1315 | }; | |
1316 | ||
1317 | /* Unary operations that can also be turned into agent expressions in | |
1318 | the "usual" way. */ | |
1319 | template<enum exp_opcode OP, unary_ftype FUNC> | |
1320 | class usual_ax_unop_operation | |
1321 | : public unop_operation<OP, FUNC> | |
1322 | { | |
1323 | using unop_operation<OP, FUNC>::unop_operation; | |
1324 | ||
1325 | protected: | |
1326 | ||
1327 | void do_generate_ax (struct expression *exp, | |
1328 | struct agent_expr *ax, | |
1329 | struct axs_value *value, | |
1330 | struct type *cast_type) | |
1331 | override | |
1332 | { | |
1333 | gen_expr_unop (exp, OP, | |
1334 | std::get<0> (this->m_storage).get (), | |
1335 | ax, value); | |
1336 | } | |
1337 | }; | |
1338 | ||
1339 | using unary_plus_operation = usual_ax_unop_operation<UNOP_PLUS, eval_op_plus>; | |
1340 | using unary_neg_operation = usual_ax_unop_operation<UNOP_NEG, eval_op_neg>; | |
1341 | using unary_complement_operation | |
1342 | = usual_ax_unop_operation<UNOP_COMPLEMENT, eval_op_complement>; | |
1343 | using unary_logical_not_operation | |
1344 | = usual_ax_unop_operation<UNOP_LOGICAL_NOT, eval_op_lognot>; | |
1345 | ||
6d89e296 TT |
1346 | /* Handle pre- and post- increment and -decrement. */ |
1347 | template<enum exp_opcode OP, unary_ftype FUNC> | |
1348 | class unop_incr_operation | |
1349 | : public tuple_holding_operation<operation_up> | |
1350 | { | |
1351 | public: | |
1352 | ||
1353 | using tuple_holding_operation::tuple_holding_operation; | |
1354 | ||
1355 | value *evaluate (struct type *expect_type, | |
1356 | struct expression *exp, | |
1357 | enum noside noside) override | |
1358 | { | |
1359 | value *val = std::get<0> (m_storage)->evaluate (expect_type, exp, noside); | |
1360 | return FUNC (expect_type, exp, noside, OP, val); | |
1361 | } | |
1362 | ||
1363 | enum exp_opcode opcode () const override | |
1364 | { return OP; } | |
1365 | }; | |
1366 | ||
1367 | using preinc_operation | |
1368 | = unop_incr_operation<UNOP_PREINCREMENT, eval_op_preinc>; | |
1369 | using predec_operation | |
1370 | = unop_incr_operation<UNOP_PREDECREMENT, eval_op_predec>; | |
1371 | using postinc_operation | |
1372 | = unop_incr_operation<UNOP_POSTINCREMENT, eval_op_postinc>; | |
1373 | using postdec_operation | |
1374 | = unop_incr_operation<UNOP_POSTDECREMENT, eval_op_postdec>; | |
1375 | ||
876469ff TT |
1376 | /* Base class for implementations of UNOP_IND. */ |
1377 | class unop_ind_base_operation | |
1378 | : public tuple_holding_operation<operation_up> | |
1379 | { | |
1380 | public: | |
1381 | ||
1382 | using tuple_holding_operation::tuple_holding_operation; | |
1383 | ||
1384 | value *evaluate (struct type *expect_type, | |
1385 | struct expression *exp, | |
1386 | enum noside noside) override | |
1387 | { | |
1388 | if (expect_type != nullptr && expect_type->code () == TYPE_CODE_PTR) | |
1389 | expect_type = TYPE_TARGET_TYPE (check_typedef (expect_type)); | |
1390 | value *val = std::get<0> (m_storage)->evaluate (expect_type, exp, noside); | |
1391 | return eval_op_ind (expect_type, exp, noside, val); | |
1392 | } | |
1393 | ||
1394 | value *evaluate_for_address (struct expression *exp, | |
1395 | enum noside noside) override; | |
1396 | ||
1397 | value *evaluate_for_sizeof (struct expression *exp, | |
1398 | enum noside noside) override; | |
1399 | ||
1400 | enum exp_opcode opcode () const override | |
1401 | { return UNOP_IND; } | |
1402 | }; | |
1403 | ||
1404 | /* Ordinary UNOP_IND implementation. */ | |
1405 | class unop_ind_operation | |
1406 | : public unop_ind_base_operation | |
1407 | { | |
1408 | public: | |
1409 | ||
1410 | using unop_ind_base_operation::unop_ind_base_operation; | |
1411 | ||
1412 | protected: | |
1413 | ||
1414 | void do_generate_ax (struct expression *exp, | |
1415 | struct agent_expr *ax, | |
1416 | struct axs_value *value, | |
1417 | struct type *cast_type) | |
1418 | override | |
1419 | { | |
1420 | gen_expr_unop (exp, UNOP_IND, | |
1421 | std::get<0> (this->m_storage).get (), | |
1422 | ax, value); | |
1423 | } | |
1424 | }; | |
1425 | ||
5b5f5140 TT |
1426 | /* Implement OP_TYPE. */ |
1427 | class type_operation | |
1428 | : public tuple_holding_operation<struct type *> | |
1429 | { | |
1430 | public: | |
1431 | ||
1432 | using tuple_holding_operation::tuple_holding_operation; | |
1433 | ||
1434 | value *evaluate (struct type *expect_type, | |
1435 | struct expression *exp, | |
1436 | enum noside noside) override | |
1437 | { | |
1438 | return eval_op_type (expect_type, exp, noside, std::get<0> (m_storage)); | |
1439 | } | |
1440 | ||
1441 | enum exp_opcode opcode () const override | |
1442 | { return OP_TYPE; } | |
1443 | ||
1444 | bool constant_p () const override | |
1445 | { return true; } | |
1446 | }; | |
1447 | ||
4efc574c TT |
1448 | /* Implement the "typeof" operation. */ |
1449 | class typeof_operation | |
1450 | : public maybe_constant_operation<operation_up> | |
1451 | { | |
1452 | public: | |
1453 | ||
1454 | using maybe_constant_operation::maybe_constant_operation; | |
1455 | ||
1456 | value *evaluate (struct type *expect_type, | |
1457 | struct expression *exp, | |
1458 | enum noside noside) override | |
1459 | { | |
1460 | if (noside == EVAL_SKIP) | |
1461 | return eval_skip_value (exp); | |
1462 | else if (noside == EVAL_AVOID_SIDE_EFFECTS) | |
1463 | return std::get<0> (m_storage)->evaluate (nullptr, exp, | |
1464 | EVAL_AVOID_SIDE_EFFECTS); | |
1465 | else | |
1466 | error (_("Attempt to use a type as an expression")); | |
1467 | } | |
1468 | ||
1469 | enum exp_opcode opcode () const override | |
1470 | { return OP_TYPEOF; } | |
1471 | }; | |
1472 | ||
e2803273 TT |
1473 | } /* namespace expr */ |
1474 | ||
1475 | #endif /* EXPOP_H */ |