1 | /* Demangler for g++ V3 ABI. |
2 | Copyright (C) 2003-2023 Free Software Foundation, Inc. |
3 | Written by Ian Lance Taylor <ian@wasabisystems.com>. |
4 | |
5 | This file is part of the libiberty library, which is part of GCC. |
6 | |
7 | This file 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 2 of the License, or |
10 | (at your option) any later version. |
11 | |
12 | In addition to the permissions in the GNU General Public License, the |
13 | Free Software Foundation gives you unlimited permission to link the |
14 | compiled version of this file into combinations with other programs, |
15 | and to distribute those combinations without any restriction coming |
16 | from the use of this file. (The General Public License restrictions |
17 | do apply in other respects; for example, they cover modification of |
18 | the file, and distribution when not linked into a combined |
19 | executable.) |
20 | |
21 | This program is distributed in the hope that it will be useful, |
22 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
24 | GNU General Public License for more details. |
25 | |
26 | You should have received a copy of the GNU General Public License |
27 | along with this program; if not, write to the Free Software |
28 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
29 | */ |
30 | |
31 | /* This code implements a demangler for the g++ V3 ABI. The ABI is |
32 | described on this web page: |
33 | https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling |
34 | |
35 | This code was written while looking at the demangler written by |
36 | Alex Samuel <samuel@codesourcery.com>. |
37 | |
38 | This code first pulls the mangled name apart into a list of |
39 | components, and then walks the list generating the demangled |
40 | name. |
41 | |
42 | This file will normally define the following functions, q.v.: |
43 | char *cplus_demangle_v3(const char *mangled, int options) |
44 | char *java_demangle_v3(const char *mangled) |
45 | int cplus_demangle_v3_callback(const char *mangled, int options, |
46 | demangle_callbackref callback) |
47 | int java_demangle_v3_callback(const char *mangled, |
48 | demangle_callbackref callback) |
49 | enum gnu_v3_ctor_kinds is_gnu_v3_mangled_ctor (const char *name) |
50 | enum gnu_v3_dtor_kinds is_gnu_v3_mangled_dtor (const char *name) |
51 | |
52 | Also, the interface to the component list is public, and defined in |
53 | demangle.h. The interface consists of these types, which are |
54 | defined in demangle.h: |
55 | enum demangle_component_type |
56 | struct demangle_component |
57 | demangle_callbackref |
58 | and these functions defined in this file: |
59 | cplus_demangle_fill_name |
60 | cplus_demangle_fill_extended_operator |
61 | cplus_demangle_fill_ctor |
62 | cplus_demangle_fill_dtor |
63 | cplus_demangle_print |
64 | cplus_demangle_print_callback |
65 | and other functions defined in the file cp-demint.c. |
66 | |
67 | This file also defines some other functions and variables which are |
68 | only to be used by the file cp-demint.c. |
69 | |
70 | Preprocessor macros you can define while compiling this file: |
71 | |
72 | IN_LIBGCC2 |
73 | If defined, this file defines the following functions, q.v.: |
74 | char *__cxa_demangle (const char *mangled, char *buf, size_t *len, |
75 | int *status) |
76 | int __gcclibcxx_demangle_callback (const char *, |
77 | void (*) |
78 | (const char *, size_t, void *), |
79 | void *) |
80 | instead of cplus_demangle_v3[_callback]() and |
81 | java_demangle_v3[_callback](). |
82 | |
83 | IN_GLIBCPP_V3 |
84 | If defined, this file defines only __cxa_demangle() and |
85 | __gcclibcxx_demangle_callback(), and no other publically visible |
86 | functions or variables. |
87 | |
88 | STANDALONE_DEMANGLER |
89 | If defined, this file defines a main() function which demangles |
90 | any arguments, or, if none, demangles stdin. |
91 | |
92 | CP_DEMANGLE_DEBUG |
93 | If defined, turns on debugging mode, which prints information on |
94 | stdout about the mangled string. This is not generally useful. |
95 | |
96 | CHECK_DEMANGLER |
97 | If defined, additional sanity checks will be performed. It will |
98 | cause some slowdown, but will allow to catch out-of-bound access |
99 | errors earlier. This macro is intended for testing and debugging. */ |
100 | |
101 | #if defined (_AIX) && !defined (__GNUC__) |
102 | #pragma alloca |
103 | #endif |
104 | |
105 | #ifdef HAVE_CONFIG_H |
106 | #include "config.h" |
107 | #endif |
108 | |
109 | #include <stdio.h> |
110 | |
111 | #ifdef HAVE_STDLIB_H |
112 | #include <stdlib.h> |
113 | #endif |
114 | #ifdef HAVE_STRING_H |
115 | #include <string.h> |
116 | #endif |
117 | |
118 | #ifdef HAVE_ALLOCA_H |
119 | # include <alloca.h> |
120 | #else |
121 | # ifndef alloca |
122 | # ifdef __GNUC__ |
123 | # define alloca __builtin_alloca |
124 | # else |
125 | extern char *alloca (); |
126 | # endif /* __GNUC__ */ |
127 | # endif /* alloca */ |
128 | #endif /* HAVE_ALLOCA_H */ |
129 | |
130 | #ifdef HAVE_LIMITS_H |
131 | #include <limits.h> |
132 | #endif |
133 | #ifndef INT_MAX |
134 | # define INT_MAX (int)(((unsigned int) ~0) >> 1) /* 0x7FFFFFFF */ |
135 | #endif |
136 | |
137 | #include "ansidecl.h" |
138 | #include "libiberty.h" |
139 | #include "demangle.h" |
140 | #include "cp-demangle.h" |
141 | |
142 | /* If IN_GLIBCPP_V3 is defined, some functions are made static. We |
143 | also rename them via #define to avoid compiler errors when the |
144 | static definition conflicts with the extern declaration in a header |
145 | file. */ |
146 | #ifdef IN_GLIBCPP_V3 |
147 | |
148 | #define CP_STATIC_IF_GLIBCPP_V3 static |
149 | |
150 | #define cplus_demangle_fill_name d_fill_name |
151 | static int d_fill_name (struct demangle_component *, const char *, int); |
152 | |
153 | #define cplus_demangle_fill_extended_operator d_fill_extended_operator |
154 | static int |
155 | d_fill_extended_operator (struct demangle_component *, int, |
156 | struct demangle_component *); |
157 | |
158 | #define cplus_demangle_fill_ctor d_fill_ctor |
159 | static int |
160 | d_fill_ctor (struct demangle_component *, enum gnu_v3_ctor_kinds, |
161 | struct demangle_component *); |
162 | |
163 | #define cplus_demangle_fill_dtor d_fill_dtor |
164 | static int |
165 | d_fill_dtor (struct demangle_component *, enum gnu_v3_dtor_kinds, |
166 | struct demangle_component *); |
167 | |
168 | #define cplus_demangle_mangled_name d_mangled_name |
169 | static struct demangle_component *d_mangled_name (struct d_info *, int); |
170 | |
171 | #define cplus_demangle_type d_type |
172 | static struct demangle_component *d_type (struct d_info *); |
173 | |
174 | #define cplus_demangle_print d_print |
175 | static char *d_print (int, struct demangle_component *, int, size_t *); |
176 | |
177 | #define cplus_demangle_print_callback d_print_callback |
178 | static int d_print_callback (int, struct demangle_component *, |
179 | demangle_callbackref, void *); |
180 | |
181 | #define cplus_demangle_init_info d_init_info |
182 | static void d_init_info (const char *, int, size_t, struct d_info *); |
183 | |
184 | #else /* ! defined(IN_GLIBCPP_V3) */ |
185 | #define CP_STATIC_IF_GLIBCPP_V3 |
186 | #endif /* ! defined(IN_GLIBCPP_V3) */ |
187 | |
188 | /* See if the compiler supports dynamic arrays. */ |
189 | |
190 | #ifdef __GNUC__ |
191 | #define CP_DYNAMIC_ARRAYS |
192 | #else |
193 | #ifdef __STDC__ |
194 | #ifdef __STDC_VERSION__ |
195 | #if __STDC_VERSION__ >= 199901L && !__STDC_NO_VLA__ |
196 | #define CP_DYNAMIC_ARRAYS |
197 | #endif /* __STDC_VERSION__ >= 199901L && !__STDC_NO_VLA__ */ |
198 | #endif /* defined (__STDC_VERSION__) */ |
199 | #endif /* defined (__STDC__) */ |
200 | #endif /* ! defined (__GNUC__) */ |
201 | |
202 | /* We avoid pulling in the ctype tables, to prevent pulling in |
203 | additional unresolved symbols when this code is used in a library. |
204 | FIXME: Is this really a valid reason? This comes from the original |
205 | V3 demangler code. |
206 | |
207 | As of this writing this file has the following undefined references |
208 | when compiled with -DIN_GLIBCPP_V3: realloc, free, memcpy, strcpy, |
209 | strcat, strlen. */ |
210 | |
211 | #define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') |
212 | #define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z') |
213 | #define IS_LOWER(c) ((c) >= 'a' && (c) <= 'z') |
214 | |
215 | /* The prefix prepended by GCC to an identifier represnting the |
216 | anonymous namespace. */ |
217 | #define ANONYMOUS_NAMESPACE_PREFIX "_GLOBAL_" |
218 | #define ANONYMOUS_NAMESPACE_PREFIX_LEN \ |
219 | (sizeof (ANONYMOUS_NAMESPACE_PREFIX) - 1) |
220 | |
221 | /* Information we keep for the standard substitutions. */ |
222 | |
223 | struct d_standard_sub_info |
224 | { |
225 | /* The code for this substitution. */ |
226 | char code; |
227 | /* The simple string it expands to. */ |
228 | const char *simple_expansion; |
229 | /* The length of the simple expansion. */ |
230 | int simple_len; |
231 | /* The results of a full, verbose, expansion. This is used when |
232 | qualifying a constructor/destructor, or when in verbose mode. */ |
233 | const char *full_expansion; |
234 | /* The length of the full expansion. */ |
235 | int full_len; |
236 | /* What to set the last_name field of d_info to; NULL if we should |
237 | not set it. This is only relevant when qualifying a |
238 | constructor/destructor. */ |
239 | const char *set_last_name; |
240 | /* The length of set_last_name. */ |
241 | int set_last_name_len; |
242 | }; |
243 | |
244 | /* Accessors for subtrees of struct demangle_component. */ |
245 | |
246 | #define d_left(dc) ((dc)->u.s_binary.left) |
247 | #define d_right(dc) ((dc)->u.s_binary.right) |
248 | |
249 | /* A list of templates. This is used while printing. */ |
250 | |
251 | struct d_print_template |
252 | { |
253 | /* Next template on the list. */ |
254 | struct d_print_template *next; |
255 | /* This template. */ |
256 | const struct demangle_component *template_decl; |
257 | }; |
258 | |
259 | /* A list of type modifiers. This is used while printing. */ |
260 | |
261 | struct d_print_mod |
262 | { |
263 | /* Next modifier on the list. These are in the reverse of the order |
264 | in which they appeared in the mangled string. */ |
265 | struct d_print_mod *next; |
266 | /* The modifier. */ |
267 | struct demangle_component *mod; |
268 | /* Whether this modifier was printed. */ |
269 | int printed; |
270 | /* The list of templates which applies to this modifier. */ |
271 | struct d_print_template *templates; |
272 | }; |
273 | |
274 | /* We use these structures to hold information during printing. */ |
275 | |
276 | struct d_growable_string |
277 | { |
278 | /* Buffer holding the result. */ |
279 | char *buf; |
280 | /* Current length of data in buffer. */ |
281 | size_t len; |
282 | /* Allocated size of buffer. */ |
283 | size_t alc; |
284 | /* Set to 1 if we had a memory allocation failure. */ |
285 | int allocation_failure; |
286 | }; |
287 | |
288 | /* Stack of components, innermost first, used to avoid loops. */ |
289 | |
290 | struct d_component_stack |
291 | { |
292 | /* This component. */ |
293 | const struct demangle_component *dc; |
294 | /* This component's parent. */ |
295 | const struct d_component_stack *parent; |
296 | }; |
297 | |
298 | /* A demangle component and some scope captured when it was first |
299 | traversed. */ |
300 | |
301 | struct d_saved_scope |
302 | { |
303 | /* The component whose scope this is. */ |
304 | const struct demangle_component *container; |
305 | /* The list of templates, if any, that was current when this |
306 | scope was captured. */ |
307 | struct d_print_template *templates; |
308 | }; |
309 | |
310 | /* Checkpoint structure to allow backtracking. This holds copies |
311 | of the fields of struct d_info that need to be restored |
312 | if a trial parse needs to be backtracked over. */ |
313 | |
314 | struct d_info_checkpoint |
315 | { |
316 | const char *n; |
317 | int next_comp; |
318 | int next_sub; |
319 | int expansion; |
320 | }; |
321 | |
322 | /* Maximum number of times d_print_comp may be called recursively. */ |
323 | #define MAX_RECURSION_COUNT 1024 |
324 | |
325 | enum { D_PRINT_BUFFER_LENGTH = 256 }; |
326 | struct d_print_info |
327 | { |
328 | /* Fixed-length allocated buffer for demangled data, flushed to the |
329 | callback with a NUL termination once full. */ |
330 | char buf[D_PRINT_BUFFER_LENGTH]; |
331 | /* Current length of data in buffer. */ |
332 | size_t len; |
333 | /* The last character printed, saved individually so that it survives |
334 | any buffer flush. */ |
335 | char last_char; |
336 | /* Callback function to handle demangled buffer flush. */ |
337 | demangle_callbackref callback; |
338 | /* Opaque callback argument. */ |
339 | void *opaque; |
340 | /* The current list of templates, if any. */ |
341 | struct d_print_template *templates; |
342 | /* The current list of modifiers (e.g., pointer, reference, etc.), |
343 | if any. */ |
344 | struct d_print_mod *modifiers; |
345 | /* Set to 1 if we saw a demangling error. */ |
346 | int demangle_failure; |
347 | /* Number of times d_print_comp was recursively called. Should not |
348 | be bigger than MAX_RECURSION_COUNT. */ |
349 | int recursion; |
350 | /* 1 more than the number of explicit template parms of a lambda. Template |
351 | parm references >= are actually 'auto'. */ |
352 | int lambda_tpl_parms; |
353 | /* The current index into any template argument packs we are using |
354 | for printing, or -1 to print the whole pack. */ |
355 | int pack_index; |
356 | /* Number of d_print_flush calls so far. */ |
357 | unsigned long int flush_count; |
358 | /* Stack of components, innermost first, used to avoid loops. */ |
359 | const struct d_component_stack *component_stack; |
360 | /* Array of saved scopes for evaluating substitutions. */ |
361 | struct d_saved_scope *saved_scopes; |
362 | /* Index of the next unused saved scope in the above array. */ |
363 | int next_saved_scope; |
364 | /* Number of saved scopes in the above array. */ |
365 | int num_saved_scopes; |
366 | /* Array of templates for saving into scopes. */ |
367 | struct d_print_template *copy_templates; |
368 | /* Index of the next unused copy template in the above array. */ |
369 | int next_copy_template; |
370 | /* Number of copy templates in the above array. */ |
371 | int num_copy_templates; |
372 | /* The nearest enclosing template, if any. */ |
373 | const struct demangle_component *current_template; |
374 | }; |
375 | |
376 | #ifdef CP_DEMANGLE_DEBUG |
377 | static void d_dump (struct demangle_component *, int); |
378 | #endif |
379 | |
380 | static struct demangle_component * |
381 | d_make_empty (struct d_info *); |
382 | |
383 | static struct demangle_component * |
384 | d_make_comp (struct d_info *, enum demangle_component_type, |
385 | struct demangle_component *, |
386 | struct demangle_component *); |
387 | |
388 | static struct demangle_component * |
389 | d_make_name (struct d_info *, const char *, int); |
390 | |
391 | static struct demangle_component * |
392 | d_make_demangle_mangled_name (struct d_info *, const char *); |
393 | |
394 | static struct demangle_component * |
395 | d_make_builtin_type (struct d_info *, |
396 | const struct demangle_builtin_type_info *); |
397 | |
398 | static struct demangle_component * |
399 | d_make_operator (struct d_info *, |
400 | const struct demangle_operator_info *); |
401 | |
402 | static struct demangle_component * |
403 | d_make_extended_operator (struct d_info *, int, |
404 | struct demangle_component *); |
405 | |
406 | static struct demangle_component * |
407 | d_make_ctor (struct d_info *, enum gnu_v3_ctor_kinds, |
408 | struct demangle_component *); |
409 | |
410 | static struct demangle_component * |
411 | d_make_dtor (struct d_info *, enum gnu_v3_dtor_kinds, |
412 | struct demangle_component *); |
413 | |
414 | static struct demangle_component * |
415 | d_make_template_param (struct d_info *, int); |
416 | |
417 | static struct demangle_component * |
418 | d_make_sub (struct d_info *, const char *, int); |
419 | |
420 | static int |
421 | has_return_type (struct demangle_component *); |
422 | |
423 | static int |
424 | is_ctor_dtor_or_conversion (struct demangle_component *); |
425 | |
426 | static struct demangle_component *d_encoding (struct d_info *, int); |
427 | |
428 | static struct demangle_component *d_name (struct d_info *, int substable); |
429 | |
430 | static struct demangle_component *d_nested_name (struct d_info *); |
431 | |
432 | static int d_maybe_module_name (struct d_info *, struct demangle_component **); |
433 | |
434 | static struct demangle_component *d_prefix (struct d_info *, int); |
435 | |
436 | static struct demangle_component *d_unqualified_name (struct d_info *, |
437 | struct demangle_component *scope, struct demangle_component *module); |
438 | |
439 | static struct demangle_component *d_source_name (struct d_info *); |
440 | |
441 | static int d_number (struct d_info *); |
442 | |
443 | static struct demangle_component *d_identifier (struct d_info *, int); |
444 | |
445 | static struct demangle_component *d_operator_name (struct d_info *); |
446 | |
447 | static struct demangle_component *d_special_name (struct d_info *); |
448 | |
449 | static struct demangle_component *d_parmlist (struct d_info *); |
450 | |
451 | static int d_call_offset (struct d_info *, int); |
452 | |
453 | static struct demangle_component *d_ctor_dtor_name (struct d_info *); |
454 | |
455 | static struct demangle_component ** |
456 | d_cv_qualifiers (struct d_info *, struct demangle_component **, int); |
457 | |
458 | static struct demangle_component * |
459 | d_ref_qualifier (struct d_info *, struct demangle_component *); |
460 | |
461 | static struct demangle_component * |
462 | d_function_type (struct d_info *); |
463 | |
464 | static struct demangle_component * |
465 | d_bare_function_type (struct d_info *, int); |
466 | |
467 | static struct demangle_component * |
468 | d_class_enum_type (struct d_info *, int); |
469 | |
470 | static struct demangle_component *d_array_type (struct d_info *); |
471 | |
472 | static struct demangle_component *d_vector_type (struct d_info *); |
473 | |
474 | static struct demangle_component * |
475 | d_pointer_to_member_type (struct d_info *); |
476 | |
477 | static struct demangle_component * |
478 | d_template_param (struct d_info *); |
479 | |
480 | static struct demangle_component *d_template_args (struct d_info *); |
481 | static struct demangle_component *d_template_args_1 (struct d_info *); |
482 | |
483 | static struct demangle_component * |
484 | d_template_arg (struct d_info *); |
485 | |
486 | static struct demangle_component *d_expression (struct d_info *); |
487 | |
488 | static struct demangle_component *d_expr_primary (struct d_info *); |
489 | |
490 | static struct demangle_component *d_local_name (struct d_info *); |
491 | |
492 | static int d_discriminator (struct d_info *); |
493 | |
494 | static struct demangle_component *d_template_parm (struct d_info *, int *bad); |
495 | |
496 | static struct demangle_component *d_template_head (struct d_info *, int *bad); |
497 | |
498 | static struct demangle_component *d_lambda (struct d_info *); |
499 | |
500 | static struct demangle_component *d_unnamed_type (struct d_info *); |
501 | |
502 | static struct demangle_component * |
503 | d_clone_suffix (struct d_info *, struct demangle_component *); |
504 | |
505 | static int |
506 | d_add_substitution (struct d_info *, struct demangle_component *); |
507 | |
508 | static struct demangle_component *d_substitution (struct d_info *, int); |
509 | |
510 | static void d_checkpoint (struct d_info *, struct d_info_checkpoint *); |
511 | |
512 | static void d_backtrack (struct d_info *, struct d_info_checkpoint *); |
513 | |
514 | static void d_growable_string_init (struct d_growable_string *, size_t); |
515 | |
516 | static inline void |
517 | d_growable_string_resize (struct d_growable_string *, size_t); |
518 | |
519 | static inline void |
520 | d_growable_string_append_buffer (struct d_growable_string *, |
521 | const char *, size_t); |
522 | static void |
523 | d_growable_string_callback_adapter (const char *, size_t, void *); |
524 | |
525 | static void |
526 | d_print_init (struct d_print_info *, demangle_callbackref, void *, |
527 | struct demangle_component *); |
528 | |
529 | static inline void d_print_error (struct d_print_info *); |
530 | |
531 | static inline int d_print_saw_error (struct d_print_info *); |
532 | |
533 | static inline void d_print_flush (struct d_print_info *); |
534 | |
535 | static inline void d_append_char (struct d_print_info *, char); |
536 | |
537 | static inline void d_append_buffer (struct d_print_info *, |
538 | const char *, size_t); |
539 | |
540 | static inline void d_append_string (struct d_print_info *, const char *); |
541 | |
542 | static inline char d_last_char (struct d_print_info *); |
543 | |
544 | static void |
545 | d_print_comp (struct d_print_info *, int, struct demangle_component *); |
546 | |
547 | static void |
548 | d_print_java_identifier (struct d_print_info *, const char *, int); |
549 | |
550 | static void |
551 | d_print_mod_list (struct d_print_info *, int, struct d_print_mod *, int); |
552 | |
553 | static void |
554 | d_print_mod (struct d_print_info *, int, struct demangle_component *); |
555 | |
556 | static void |
557 | d_print_function_type (struct d_print_info *, int, |
558 | struct demangle_component *, |
559 | struct d_print_mod *); |
560 | |
561 | static void |
562 | d_print_array_type (struct d_print_info *, int, |
563 | struct demangle_component *, |
564 | struct d_print_mod *); |
565 | |
566 | static void |
567 | d_print_expr_op (struct d_print_info *, int, struct demangle_component *); |
568 | |
569 | static void d_print_cast (struct d_print_info *, int, |
570 | struct demangle_component *); |
571 | static void d_print_conversion (struct d_print_info *, int, |
572 | struct demangle_component *); |
573 | |
574 | static int d_demangle_callback (const char *, int, |
575 | demangle_callbackref, void *); |
576 | static char *d_demangle (const char *, int, size_t *); |
577 | |
578 | #define FNQUAL_COMPONENT_CASE \ |
579 | case DEMANGLE_COMPONENT_RESTRICT_THIS: \ |
580 | case DEMANGLE_COMPONENT_VOLATILE_THIS: \ |
581 | case DEMANGLE_COMPONENT_CONST_THIS: \ |
582 | case DEMANGLE_COMPONENT_REFERENCE_THIS: \ |
583 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: \ |
584 | case DEMANGLE_COMPONENT_TRANSACTION_SAFE: \ |
585 | case DEMANGLE_COMPONENT_NOEXCEPT: \ |
586 | case DEMANGLE_COMPONENT_THROW_SPEC |
587 | |
588 | /* True iff TYPE is a demangling component representing a |
589 | function-type-qualifier. */ |
590 | |
591 | static int |
592 | is_fnqual_component_type (enum demangle_component_type type) |
593 | { |
594 | switch (type) |
595 | { |
596 | FNQUAL_COMPONENT_CASE: |
597 | return 1; |
598 | default: |
599 | break; |
600 | } |
601 | return 0; |
602 | } |
603 | |
604 | |
605 | #ifdef CP_DEMANGLE_DEBUG |
606 | |
607 | static void |
608 | d_dump (struct demangle_component *dc, int indent) |
609 | { |
610 | int i; |
611 | |
612 | if (dc == NULL) |
613 | { |
614 | if (indent == 0) |
615 | printf ("failed demangling\n" ); |
616 | return; |
617 | } |
618 | |
619 | for (i = 0; i < indent; ++i) |
620 | putchar (' '); |
621 | |
622 | switch (dc->type) |
623 | { |
624 | case DEMANGLE_COMPONENT_NAME: |
625 | printf ("name '%.*s'\n" , dc->u.s_name.len, dc->u.s_name.s); |
626 | return; |
627 | case DEMANGLE_COMPONENT_TAGGED_NAME: |
628 | printf ("tagged name\n" ); |
629 | d_dump (dc->u.s_binary.left, indent + 2); |
630 | d_dump (dc->u.s_binary.right, indent + 2); |
631 | return; |
632 | case DEMANGLE_COMPONENT_TEMPLATE_PARAM: |
633 | printf ("template parameter %ld\n" , dc->u.s_number.number); |
634 | return; |
635 | case DEMANGLE_COMPONENT_TPARM_OBJ: |
636 | printf ("template parameter object\n" ); |
637 | break; |
638 | case DEMANGLE_COMPONENT_FUNCTION_PARAM: |
639 | printf ("function parameter %ld\n" , dc->u.s_number.number); |
640 | return; |
641 | case DEMANGLE_COMPONENT_CTOR: |
642 | printf ("constructor %d\n" , (int) dc->u.s_ctor.kind); |
643 | d_dump (dc->u.s_ctor.name, indent + 2); |
644 | return; |
645 | case DEMANGLE_COMPONENT_DTOR: |
646 | printf ("destructor %d\n" , (int) dc->u.s_dtor.kind); |
647 | d_dump (dc->u.s_dtor.name, indent + 2); |
648 | return; |
649 | case DEMANGLE_COMPONENT_SUB_STD: |
650 | printf ("standard substitution %s\n" , dc->u.s_string.string); |
651 | return; |
652 | case DEMANGLE_COMPONENT_BUILTIN_TYPE: |
653 | printf ("builtin type %s\n" , dc->u.s_builtin.type->name); |
654 | return; |
655 | case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: |
656 | { |
657 | char suffix[2] = { dc->u.s_extended_builtin.type->suffix, 0 }; |
658 | printf ("builtin type %s%d%s\n" , dc->u.s_extended_builtin.type->name, |
659 | dc->u.s_extended_builtin.type->arg, suffix); |
660 | } |
661 | return; |
662 | case DEMANGLE_COMPONENT_OPERATOR: |
663 | printf ("operator %s\n" , dc->u.s_operator.op->name); |
664 | return; |
665 | case DEMANGLE_COMPONENT_EXTENDED_OPERATOR: |
666 | printf ("extended operator with %d args\n" , |
667 | dc->u.s_extended_operator.args); |
668 | d_dump (dc->u.s_extended_operator.name, indent + 2); |
669 | return; |
670 | |
671 | case DEMANGLE_COMPONENT_QUAL_NAME: |
672 | printf ("qualified name\n" ); |
673 | break; |
674 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
675 | printf ("local name\n" ); |
676 | break; |
677 | case DEMANGLE_COMPONENT_TYPED_NAME: |
678 | printf ("typed name\n" ); |
679 | break; |
680 | case DEMANGLE_COMPONENT_TEMPLATE: |
681 | printf ("template\n" ); |
682 | break; |
683 | case DEMANGLE_COMPONENT_VTABLE: |
684 | printf ("vtable\n" ); |
685 | break; |
686 | case DEMANGLE_COMPONENT_VTT: |
687 | printf ("VTT\n" ); |
688 | break; |
689 | case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE: |
690 | printf ("construction vtable\n" ); |
691 | break; |
692 | case DEMANGLE_COMPONENT_TYPEINFO: |
693 | printf ("typeinfo\n" ); |
694 | break; |
695 | case DEMANGLE_COMPONENT_TYPEINFO_NAME: |
696 | printf ("typeinfo name\n" ); |
697 | break; |
698 | case DEMANGLE_COMPONENT_TYPEINFO_FN: |
699 | printf ("typeinfo function\n" ); |
700 | break; |
701 | case DEMANGLE_COMPONENT_THUNK: |
702 | printf ("thunk\n" ); |
703 | break; |
704 | case DEMANGLE_COMPONENT_VIRTUAL_THUNK: |
705 | printf ("virtual thunk\n" ); |
706 | break; |
707 | case DEMANGLE_COMPONENT_COVARIANT_THUNK: |
708 | printf ("covariant thunk\n" ); |
709 | break; |
710 | case DEMANGLE_COMPONENT_JAVA_CLASS: |
711 | printf ("java class\n" ); |
712 | break; |
713 | case DEMANGLE_COMPONENT_GUARD: |
714 | printf ("guard\n" ); |
715 | break; |
716 | case DEMANGLE_COMPONENT_REFTEMP: |
717 | printf ("reference temporary\n" ); |
718 | break; |
719 | case DEMANGLE_COMPONENT_HIDDEN_ALIAS: |
720 | printf ("hidden alias\n" ); |
721 | break; |
722 | case DEMANGLE_COMPONENT_TRANSACTION_CLONE: |
723 | printf ("transaction clone\n" ); |
724 | break; |
725 | case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE: |
726 | printf ("non-transaction clone\n" ); |
727 | break; |
728 | case DEMANGLE_COMPONENT_RESTRICT: |
729 | printf ("restrict\n" ); |
730 | break; |
731 | case DEMANGLE_COMPONENT_VOLATILE: |
732 | printf ("volatile\n" ); |
733 | break; |
734 | case DEMANGLE_COMPONENT_CONST: |
735 | printf ("const\n" ); |
736 | break; |
737 | case DEMANGLE_COMPONENT_RESTRICT_THIS: |
738 | printf ("restrict this\n" ); |
739 | break; |
740 | case DEMANGLE_COMPONENT_VOLATILE_THIS: |
741 | printf ("volatile this\n" ); |
742 | break; |
743 | case DEMANGLE_COMPONENT_CONST_THIS: |
744 | printf ("const this\n" ); |
745 | break; |
746 | case DEMANGLE_COMPONENT_REFERENCE_THIS: |
747 | printf ("reference this\n" ); |
748 | break; |
749 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: |
750 | printf ("rvalue reference this\n" ); |
751 | break; |
752 | case DEMANGLE_COMPONENT_TRANSACTION_SAFE: |
753 | printf ("transaction_safe this\n" ); |
754 | break; |
755 | case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: |
756 | printf ("vendor type qualifier\n" ); |
757 | break; |
758 | case DEMANGLE_COMPONENT_POINTER: |
759 | printf ("pointer\n" ); |
760 | break; |
761 | case DEMANGLE_COMPONENT_REFERENCE: |
762 | printf ("reference\n" ); |
763 | break; |
764 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE: |
765 | printf ("rvalue reference\n" ); |
766 | break; |
767 | case DEMANGLE_COMPONENT_COMPLEX: |
768 | printf ("complex\n" ); |
769 | break; |
770 | case DEMANGLE_COMPONENT_IMAGINARY: |
771 | printf ("imaginary\n" ); |
772 | break; |
773 | case DEMANGLE_COMPONENT_VENDOR_TYPE: |
774 | printf ("vendor type\n" ); |
775 | break; |
776 | case DEMANGLE_COMPONENT_FUNCTION_TYPE: |
777 | printf ("function type\n" ); |
778 | break; |
779 | case DEMANGLE_COMPONENT_ARRAY_TYPE: |
780 | printf ("array type\n" ); |
781 | break; |
782 | case DEMANGLE_COMPONENT_PTRMEM_TYPE: |
783 | printf ("pointer to member type\n" ); |
784 | break; |
785 | case DEMANGLE_COMPONENT_ARGLIST: |
786 | printf ("argument list\n" ); |
787 | break; |
788 | case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: |
789 | printf ("template argument list\n" ); |
790 | break; |
791 | case DEMANGLE_COMPONENT_INITIALIZER_LIST: |
792 | printf ("initializer list\n" ); |
793 | break; |
794 | case DEMANGLE_COMPONENT_CAST: |
795 | printf ("cast\n" ); |
796 | break; |
797 | case DEMANGLE_COMPONENT_CONVERSION: |
798 | printf ("conversion operator\n" ); |
799 | break; |
800 | case DEMANGLE_COMPONENT_NULLARY: |
801 | printf ("nullary operator\n" ); |
802 | break; |
803 | case DEMANGLE_COMPONENT_UNARY: |
804 | printf ("unary operator\n" ); |
805 | break; |
806 | case DEMANGLE_COMPONENT_BINARY: |
807 | printf ("binary operator\n" ); |
808 | break; |
809 | case DEMANGLE_COMPONENT_BINARY_ARGS: |
810 | printf ("binary operator arguments\n" ); |
811 | break; |
812 | case DEMANGLE_COMPONENT_TRINARY: |
813 | printf ("trinary operator\n" ); |
814 | break; |
815 | case DEMANGLE_COMPONENT_TRINARY_ARG1: |
816 | printf ("trinary operator arguments 1\n" ); |
817 | break; |
818 | case DEMANGLE_COMPONENT_TRINARY_ARG2: |
819 | printf ("trinary operator arguments 1\n" ); |
820 | break; |
821 | case DEMANGLE_COMPONENT_LITERAL: |
822 | printf ("literal\n" ); |
823 | break; |
824 | case DEMANGLE_COMPONENT_LITERAL_NEG: |
825 | printf ("negative literal\n" ); |
826 | break; |
827 | case DEMANGLE_COMPONENT_VENDOR_EXPR: |
828 | printf ("vendor expression\n" ); |
829 | break; |
830 | case DEMANGLE_COMPONENT_JAVA_RESOURCE: |
831 | printf ("java resource\n" ); |
832 | break; |
833 | case DEMANGLE_COMPONENT_COMPOUND_NAME: |
834 | printf ("compound name\n" ); |
835 | break; |
836 | case DEMANGLE_COMPONENT_CHARACTER: |
837 | printf ("character '%c'\n" , dc->u.s_character.character); |
838 | return; |
839 | case DEMANGLE_COMPONENT_NUMBER: |
840 | printf ("number %ld\n" , dc->u.s_number.number); |
841 | return; |
842 | case DEMANGLE_COMPONENT_DECLTYPE: |
843 | printf ("decltype\n" ); |
844 | break; |
845 | case DEMANGLE_COMPONENT_PACK_EXPANSION: |
846 | printf ("pack expansion\n" ); |
847 | break; |
848 | case DEMANGLE_COMPONENT_TLS_INIT: |
849 | printf ("tls init function\n" ); |
850 | break; |
851 | case DEMANGLE_COMPONENT_TLS_WRAPPER: |
852 | printf ("tls wrapper function\n" ); |
853 | break; |
854 | case DEMANGLE_COMPONENT_DEFAULT_ARG: |
855 | printf ("default argument %d\n" , dc->u.s_unary_num.num); |
856 | d_dump (dc->u.s_unary_num.sub, indent+2); |
857 | return; |
858 | case DEMANGLE_COMPONENT_LAMBDA: |
859 | printf ("lambda %d\n" , dc->u.s_unary_num.num); |
860 | d_dump (dc->u.s_unary_num.sub, indent+2); |
861 | return; |
862 | } |
863 | |
864 | d_dump (d_left (dc), indent + 2); |
865 | d_dump (d_right (dc), indent + 2); |
866 | } |
867 | |
868 | #endif /* CP_DEMANGLE_DEBUG */ |
869 | |
870 | /* Fill in a DEMANGLE_COMPONENT_NAME. */ |
871 | |
872 | CP_STATIC_IF_GLIBCPP_V3 |
873 | int |
874 | cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len) |
875 | { |
876 | if (p == NULL || s == NULL || len <= 0) |
877 | return 0; |
878 | p->d_printing = 0; |
879 | p->d_counting = 0; |
880 | p->type = DEMANGLE_COMPONENT_NAME; |
881 | p->u.s_name.s = s; |
882 | p->u.s_name.len = len; |
883 | return 1; |
884 | } |
885 | |
886 | /* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */ |
887 | |
888 | CP_STATIC_IF_GLIBCPP_V3 |
889 | int |
890 | cplus_demangle_fill_extended_operator (struct demangle_component *p, int args, |
891 | struct demangle_component *name) |
892 | { |
893 | if (p == NULL || args < 0 || name == NULL) |
894 | return 0; |
895 | p->d_printing = 0; |
896 | p->d_counting = 0; |
897 | p->type = DEMANGLE_COMPONENT_EXTENDED_OPERATOR; |
898 | p->u.s_extended_operator.args = args; |
899 | p->u.s_extended_operator.name = name; |
900 | return 1; |
901 | } |
902 | |
903 | /* Fill in a DEMANGLE_COMPONENT_CTOR. */ |
904 | |
905 | CP_STATIC_IF_GLIBCPP_V3 |
906 | int |
907 | cplus_demangle_fill_ctor (struct demangle_component *p, |
908 | enum gnu_v3_ctor_kinds kind, |
909 | struct demangle_component *name) |
910 | { |
911 | if (p == NULL |
912 | || name == NULL |
913 | || (int) kind < gnu_v3_complete_object_ctor |
914 | || (int) kind > gnu_v3_object_ctor_group) |
915 | return 0; |
916 | p->d_printing = 0; |
917 | p->d_counting = 0; |
918 | p->type = DEMANGLE_COMPONENT_CTOR; |
919 | p->u.s_ctor.kind = kind; |
920 | p->u.s_ctor.name = name; |
921 | return 1; |
922 | } |
923 | |
924 | /* Fill in a DEMANGLE_COMPONENT_DTOR. */ |
925 | |
926 | CP_STATIC_IF_GLIBCPP_V3 |
927 | int |
928 | cplus_demangle_fill_dtor (struct demangle_component *p, |
929 | enum gnu_v3_dtor_kinds kind, |
930 | struct demangle_component *name) |
931 | { |
932 | if (p == NULL |
933 | || name == NULL |
934 | || (int) kind < gnu_v3_deleting_dtor |
935 | || (int) kind > gnu_v3_object_dtor_group) |
936 | return 0; |
937 | p->d_printing = 0; |
938 | p->d_counting = 0; |
939 | p->type = DEMANGLE_COMPONENT_DTOR; |
940 | p->u.s_dtor.kind = kind; |
941 | p->u.s_dtor.name = name; |
942 | return 1; |
943 | } |
944 | |
945 | /* Add a new component. */ |
946 | |
947 | static struct demangle_component * |
948 | d_make_empty (struct d_info *di) |
949 | { |
950 | struct demangle_component *p; |
951 | |
952 | if (di->next_comp >= di->num_comps) |
953 | return NULL; |
954 | p = &di->comps[di->next_comp]; |
955 | p->d_printing = 0; |
956 | p->d_counting = 0; |
957 | ++di->next_comp; |
958 | return p; |
959 | } |
960 | |
961 | /* Add a new generic component. */ |
962 | |
963 | static struct demangle_component * |
964 | d_make_comp (struct d_info *di, enum demangle_component_type type, |
965 | struct demangle_component *left, |
966 | struct demangle_component *right) |
967 | { |
968 | struct demangle_component *p; |
969 | |
970 | /* We check for errors here. A typical error would be a NULL return |
971 | from a subroutine. We catch those here, and return NULL |
972 | upward. */ |
973 | switch (type) |
974 | { |
975 | /* These types require two parameters. */ |
976 | case DEMANGLE_COMPONENT_QUAL_NAME: |
977 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
978 | case DEMANGLE_COMPONENT_TYPED_NAME: |
979 | case DEMANGLE_COMPONENT_TAGGED_NAME: |
980 | case DEMANGLE_COMPONENT_TEMPLATE: |
981 | case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE: |
982 | case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: |
983 | case DEMANGLE_COMPONENT_PTRMEM_TYPE: |
984 | case DEMANGLE_COMPONENT_UNARY: |
985 | case DEMANGLE_COMPONENT_BINARY: |
986 | case DEMANGLE_COMPONENT_BINARY_ARGS: |
987 | case DEMANGLE_COMPONENT_TRINARY: |
988 | case DEMANGLE_COMPONENT_TRINARY_ARG1: |
989 | case DEMANGLE_COMPONENT_LITERAL: |
990 | case DEMANGLE_COMPONENT_LITERAL_NEG: |
991 | case DEMANGLE_COMPONENT_VENDOR_EXPR: |
992 | case DEMANGLE_COMPONENT_COMPOUND_NAME: |
993 | case DEMANGLE_COMPONENT_VECTOR_TYPE: |
994 | case DEMANGLE_COMPONENT_CLONE: |
995 | case DEMANGLE_COMPONENT_MODULE_ENTITY: |
996 | if (left == NULL || right == NULL) |
997 | return NULL; |
998 | break; |
999 | |
1000 | /* These types only require one parameter. */ |
1001 | case DEMANGLE_COMPONENT_VTABLE: |
1002 | case DEMANGLE_COMPONENT_VTT: |
1003 | case DEMANGLE_COMPONENT_TYPEINFO: |
1004 | case DEMANGLE_COMPONENT_TYPEINFO_NAME: |
1005 | case DEMANGLE_COMPONENT_TYPEINFO_FN: |
1006 | case DEMANGLE_COMPONENT_THUNK: |
1007 | case DEMANGLE_COMPONENT_VIRTUAL_THUNK: |
1008 | case DEMANGLE_COMPONENT_COVARIANT_THUNK: |
1009 | case DEMANGLE_COMPONENT_JAVA_CLASS: |
1010 | case DEMANGLE_COMPONENT_GUARD: |
1011 | case DEMANGLE_COMPONENT_TLS_INIT: |
1012 | case DEMANGLE_COMPONENT_TLS_WRAPPER: |
1013 | case DEMANGLE_COMPONENT_REFTEMP: |
1014 | case DEMANGLE_COMPONENT_HIDDEN_ALIAS: |
1015 | case DEMANGLE_COMPONENT_TRANSACTION_CLONE: |
1016 | case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE: |
1017 | case DEMANGLE_COMPONENT_POINTER: |
1018 | case DEMANGLE_COMPONENT_REFERENCE: |
1019 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE: |
1020 | case DEMANGLE_COMPONENT_COMPLEX: |
1021 | case DEMANGLE_COMPONENT_IMAGINARY: |
1022 | case DEMANGLE_COMPONENT_VENDOR_TYPE: |
1023 | case DEMANGLE_COMPONENT_CAST: |
1024 | case DEMANGLE_COMPONENT_CONVERSION: |
1025 | case DEMANGLE_COMPONENT_JAVA_RESOURCE: |
1026 | case DEMANGLE_COMPONENT_DECLTYPE: |
1027 | case DEMANGLE_COMPONENT_PACK_EXPANSION: |
1028 | case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS: |
1029 | case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS: |
1030 | case DEMANGLE_COMPONENT_NULLARY: |
1031 | case DEMANGLE_COMPONENT_TRINARY_ARG2: |
1032 | case DEMANGLE_COMPONENT_TPARM_OBJ: |
1033 | case DEMANGLE_COMPONENT_STRUCTURED_BINDING: |
1034 | case DEMANGLE_COMPONENT_MODULE_INIT: |
1035 | case DEMANGLE_COMPONENT_TEMPLATE_HEAD: |
1036 | case DEMANGLE_COMPONENT_TEMPLATE_NON_TYPE_PARM: |
1037 | case DEMANGLE_COMPONENT_TEMPLATE_TEMPLATE_PARM: |
1038 | case DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM: |
1039 | case DEMANGLE_COMPONENT_FRIEND: |
1040 | if (left == NULL) |
1041 | return NULL; |
1042 | break; |
1043 | |
1044 | /* This needs a right parameter, but the left parameter can be |
1045 | empty. */ |
1046 | case DEMANGLE_COMPONENT_ARRAY_TYPE: |
1047 | case DEMANGLE_COMPONENT_INITIALIZER_LIST: |
1048 | case DEMANGLE_COMPONENT_MODULE_NAME: |
1049 | case DEMANGLE_COMPONENT_MODULE_PARTITION: |
1050 | if (right == NULL) |
1051 | return NULL; |
1052 | break; |
1053 | |
1054 | /* These are allowed to have no parameters--in some cases they |
1055 | will be filled in later. */ |
1056 | case DEMANGLE_COMPONENT_FUNCTION_TYPE: |
1057 | case DEMANGLE_COMPONENT_RESTRICT: |
1058 | case DEMANGLE_COMPONENT_VOLATILE: |
1059 | case DEMANGLE_COMPONENT_CONST: |
1060 | case DEMANGLE_COMPONENT_ARGLIST: |
1061 | case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: |
1062 | case DEMANGLE_COMPONENT_TEMPLATE_TYPE_PARM: |
1063 | FNQUAL_COMPONENT_CASE: |
1064 | break; |
1065 | |
1066 | /* Other types should not be seen here. */ |
1067 | default: |
1068 | return NULL; |
1069 | } |
1070 | |
1071 | p = d_make_empty (di); |
1072 | if (p != NULL) |
1073 | { |
1074 | p->type = type; |
1075 | p->u.s_binary.left = left; |
1076 | p->u.s_binary.right = right; |
1077 | } |
1078 | return p; |
1079 | } |
1080 | |
1081 | /* Add a new demangle mangled name component. */ |
1082 | |
1083 | static struct demangle_component * |
1084 | d_make_demangle_mangled_name (struct d_info *di, const char *s) |
1085 | { |
1086 | if (d_peek_char (di) != '_' || d_peek_next_char (di) != 'Z') |
1087 | return d_make_name (di, s, strlen (s: s)); |
1088 | d_advance (di, 2); |
1089 | return d_encoding (di, 0); |
1090 | } |
1091 | |
1092 | /* Add a new name component. */ |
1093 | |
1094 | static struct demangle_component * |
1095 | d_make_name (struct d_info *di, const char *s, int len) |
1096 | { |
1097 | struct demangle_component *p; |
1098 | |
1099 | p = d_make_empty (di); |
1100 | if (! cplus_demangle_fill_name (p, s, len)) |
1101 | return NULL; |
1102 | return p; |
1103 | } |
1104 | |
1105 | /* Add a new builtin type component. */ |
1106 | |
1107 | static struct demangle_component * |
1108 | d_make_builtin_type (struct d_info *di, |
1109 | const struct demangle_builtin_type_info *type) |
1110 | { |
1111 | struct demangle_component *p; |
1112 | |
1113 | if (type == NULL) |
1114 | return NULL; |
1115 | p = d_make_empty (di); |
1116 | if (p != NULL) |
1117 | { |
1118 | p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE; |
1119 | p->u.s_builtin.type = type; |
1120 | } |
1121 | return p; |
1122 | } |
1123 | |
1124 | /* Add a new extended builtin type component. */ |
1125 | |
1126 | static struct demangle_component * |
1127 | d_make_extended_builtin_type (struct d_info *di, |
1128 | const struct demangle_builtin_type_info *type, |
1129 | short arg, char suffix) |
1130 | { |
1131 | struct demangle_component *p; |
1132 | |
1133 | if (type == NULL) |
1134 | return NULL; |
1135 | p = d_make_empty (di); |
1136 | if (p != NULL) |
1137 | { |
1138 | p->type = DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE; |
1139 | p->u.s_extended_builtin.type = type; |
1140 | p->u.s_extended_builtin.arg = arg; |
1141 | p->u.s_extended_builtin.suffix = suffix; |
1142 | } |
1143 | return p; |
1144 | } |
1145 | |
1146 | /* Add a new operator component. */ |
1147 | |
1148 | static struct demangle_component * |
1149 | d_make_operator (struct d_info *di, const struct demangle_operator_info *op) |
1150 | { |
1151 | struct demangle_component *p; |
1152 | |
1153 | p = d_make_empty (di); |
1154 | if (p != NULL) |
1155 | { |
1156 | p->type = DEMANGLE_COMPONENT_OPERATOR; |
1157 | p->u.s_operator.op = op; |
1158 | } |
1159 | return p; |
1160 | } |
1161 | |
1162 | /* Add a new extended operator component. */ |
1163 | |
1164 | static struct demangle_component * |
1165 | d_make_extended_operator (struct d_info *di, int args, |
1166 | struct demangle_component *name) |
1167 | { |
1168 | struct demangle_component *p; |
1169 | |
1170 | p = d_make_empty (di); |
1171 | if (! cplus_demangle_fill_extended_operator (p, args, name)) |
1172 | return NULL; |
1173 | return p; |
1174 | } |
1175 | |
1176 | static struct demangle_component * |
1177 | d_make_default_arg (struct d_info *di, int num, |
1178 | struct demangle_component *sub) |
1179 | { |
1180 | struct demangle_component *p = d_make_empty (di); |
1181 | if (p) |
1182 | { |
1183 | p->type = DEMANGLE_COMPONENT_DEFAULT_ARG; |
1184 | p->u.s_unary_num.num = num; |
1185 | p->u.s_unary_num.sub = sub; |
1186 | } |
1187 | return p; |
1188 | } |
1189 | |
1190 | /* Add a new constructor component. */ |
1191 | |
1192 | static struct demangle_component * |
1193 | d_make_ctor (struct d_info *di, enum gnu_v3_ctor_kinds kind, |
1194 | struct demangle_component *name) |
1195 | { |
1196 | struct demangle_component *p; |
1197 | |
1198 | p = d_make_empty (di); |
1199 | if (! cplus_demangle_fill_ctor (p, kind, name)) |
1200 | return NULL; |
1201 | return p; |
1202 | } |
1203 | |
1204 | /* Add a new destructor component. */ |
1205 | |
1206 | static struct demangle_component * |
1207 | d_make_dtor (struct d_info *di, enum gnu_v3_dtor_kinds kind, |
1208 | struct demangle_component *name) |
1209 | { |
1210 | struct demangle_component *p; |
1211 | |
1212 | p = d_make_empty (di); |
1213 | if (! cplus_demangle_fill_dtor (p, kind, name)) |
1214 | return NULL; |
1215 | return p; |
1216 | } |
1217 | |
1218 | /* Add a new template parameter. */ |
1219 | |
1220 | static struct demangle_component * |
1221 | d_make_template_param (struct d_info *di, int i) |
1222 | { |
1223 | struct demangle_component *p; |
1224 | |
1225 | p = d_make_empty (di); |
1226 | if (p != NULL) |
1227 | { |
1228 | p->type = DEMANGLE_COMPONENT_TEMPLATE_PARAM; |
1229 | p->u.s_number.number = i; |
1230 | } |
1231 | return p; |
1232 | } |
1233 | |
1234 | /* Add a new function parameter. */ |
1235 | |
1236 | static struct demangle_component * |
1237 | d_make_function_param (struct d_info *di, int i) |
1238 | { |
1239 | struct demangle_component *p; |
1240 | |
1241 | p = d_make_empty (di); |
1242 | if (p != NULL) |
1243 | { |
1244 | p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM; |
1245 | p->u.s_number.number = i; |
1246 | } |
1247 | return p; |
1248 | } |
1249 | |
1250 | /* Add a new standard substitution component. */ |
1251 | |
1252 | static struct demangle_component * |
1253 | d_make_sub (struct d_info *di, const char *name, int len) |
1254 | { |
1255 | struct demangle_component *p; |
1256 | |
1257 | p = d_make_empty (di); |
1258 | if (p != NULL) |
1259 | { |
1260 | p->type = DEMANGLE_COMPONENT_SUB_STD; |
1261 | p->u.s_string.string = name; |
1262 | p->u.s_string.len = len; |
1263 | } |
1264 | return p; |
1265 | } |
1266 | |
1267 | /* <mangled-name> ::= _Z <encoding> [<clone-suffix>]* |
1268 | |
1269 | TOP_LEVEL is non-zero when called at the top level. */ |
1270 | |
1271 | CP_STATIC_IF_GLIBCPP_V3 |
1272 | struct demangle_component * |
1273 | cplus_demangle_mangled_name (struct d_info *di, int top_level) |
1274 | { |
1275 | struct demangle_component *p; |
1276 | |
1277 | if (! d_check_char (di, '_') |
1278 | /* Allow missing _ if not at toplevel to work around a |
1279 | bug in G++ abi-version=2 mangling; see the comment in |
1280 | write_template_arg. */ |
1281 | && top_level) |
1282 | return NULL; |
1283 | if (! d_check_char (di, 'Z')) |
1284 | return NULL; |
1285 | p = d_encoding (di, top_level); |
1286 | |
1287 | /* If at top level and parsing parameters, check for a clone |
1288 | suffix. */ |
1289 | if (top_level && (di->options & DMGL_PARAMS) != 0) |
1290 | while (d_peek_char (di) == '.' |
1291 | && (IS_LOWER (d_peek_next_char (di)) |
1292 | || d_peek_next_char (di) == '_' |
1293 | || IS_DIGIT (d_peek_next_char (di)))) |
1294 | p = d_clone_suffix (di, p); |
1295 | |
1296 | return p; |
1297 | } |
1298 | |
1299 | /* Return whether a function should have a return type. The argument |
1300 | is the function name, which may be qualified in various ways. The |
1301 | rules are that template functions have return types with some |
1302 | exceptions, function types which are not part of a function name |
1303 | mangling have return types with some exceptions, and non-template |
1304 | function names do not have return types. The exceptions are that |
1305 | constructors, destructors, and conversion operators do not have |
1306 | return types. */ |
1307 | |
1308 | static int |
1309 | has_return_type (struct demangle_component *dc) |
1310 | { |
1311 | if (dc == NULL) |
1312 | return 0; |
1313 | switch (dc->type) |
1314 | { |
1315 | default: |
1316 | return 0; |
1317 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
1318 | return has_return_type (d_right (dc)); |
1319 | case DEMANGLE_COMPONENT_TEMPLATE: |
1320 | return ! is_ctor_dtor_or_conversion (d_left (dc)); |
1321 | FNQUAL_COMPONENT_CASE: |
1322 | return has_return_type (d_left (dc)); |
1323 | } |
1324 | } |
1325 | |
1326 | /* Return whether a name is a constructor, a destructor, or a |
1327 | conversion operator. */ |
1328 | |
1329 | static int |
1330 | is_ctor_dtor_or_conversion (struct demangle_component *dc) |
1331 | { |
1332 | if (dc == NULL) |
1333 | return 0; |
1334 | switch (dc->type) |
1335 | { |
1336 | default: |
1337 | return 0; |
1338 | case DEMANGLE_COMPONENT_QUAL_NAME: |
1339 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
1340 | return is_ctor_dtor_or_conversion (d_right (dc)); |
1341 | case DEMANGLE_COMPONENT_CTOR: |
1342 | case DEMANGLE_COMPONENT_DTOR: |
1343 | case DEMANGLE_COMPONENT_CONVERSION: |
1344 | return 1; |
1345 | } |
1346 | } |
1347 | |
1348 | /* <encoding> ::= <(function) name> <bare-function-type> |
1349 | ::= <(data) name> |
1350 | ::= <special-name> |
1351 | |
1352 | TOP_LEVEL is non-zero when called at the top level, in which case |
1353 | if DMGL_PARAMS is not set we do not demangle the function |
1354 | parameters. We only set this at the top level, because otherwise |
1355 | we would not correctly demangle names in local scopes. */ |
1356 | |
1357 | static struct demangle_component * |
1358 | d_encoding (struct d_info *di, int top_level) |
1359 | { |
1360 | char peek = d_peek_char (di); |
1361 | struct demangle_component *dc; |
1362 | |
1363 | if (peek == 'G' || peek == 'T') |
1364 | dc = d_special_name (di); |
1365 | else |
1366 | { |
1367 | dc = d_name (di, substable: 0); |
1368 | |
1369 | if (!dc) |
1370 | /* Failed already. */; |
1371 | else if (top_level && (di->options & DMGL_PARAMS) == 0) |
1372 | { |
1373 | /* Strip off any initial CV-qualifiers, as they really apply |
1374 | to the `this' parameter, and they were not output by the |
1375 | v2 demangler without DMGL_PARAMS. */ |
1376 | while (is_fnqual_component_type (type: dc->type)) |
1377 | dc = d_left (dc); |
1378 | |
1379 | /* If the top level is a DEMANGLE_COMPONENT_LOCAL_NAME, then |
1380 | there may be function-qualifiers on its right argument which |
1381 | really apply here; this happens when parsing a class |
1382 | which is local to a function. */ |
1383 | if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME) |
1384 | { |
1385 | while (d_right (dc) != NULL |
1386 | && is_fnqual_component_type (d_right (dc)->type)) |
1387 | d_right (dc) = d_left (d_right (dc)); |
1388 | |
1389 | if (d_right (dc) == NULL) |
1390 | dc = NULL; |
1391 | } |
1392 | } |
1393 | else |
1394 | { |
1395 | peek = d_peek_char (di); |
1396 | if (peek != '\0' && peek != 'E') |
1397 | { |
1398 | struct demangle_component *ftype; |
1399 | |
1400 | ftype = d_bare_function_type (di, has_return_type (dc)); |
1401 | if (ftype) |
1402 | { |
1403 | /* If this is a non-top-level local-name, clear the |
1404 | return type, so it doesn't confuse the user by |
1405 | being confused with the return type of whaever |
1406 | this is nested within. */ |
1407 | if (!top_level && dc->type == DEMANGLE_COMPONENT_LOCAL_NAME |
1408 | && ftype->type == DEMANGLE_COMPONENT_FUNCTION_TYPE) |
1409 | d_left (ftype) = NULL; |
1410 | |
1411 | dc = d_make_comp (di, type: DEMANGLE_COMPONENT_TYPED_NAME, |
1412 | left: dc, right: ftype); |
1413 | } |
1414 | else |
1415 | dc = NULL; |
1416 | } |
1417 | } |
1418 | } |
1419 | |
1420 | return dc; |
1421 | } |
1422 | |
1423 | /* <tagged-name> ::= <name> B <source-name> */ |
1424 | |
1425 | static struct demangle_component * |
1426 | d_abi_tags (struct d_info *di, struct demangle_component *dc) |
1427 | { |
1428 | struct demangle_component *hold_last_name; |
1429 | char peek; |
1430 | |
1431 | /* Preserve the last name, so the ABI tag doesn't clobber it. */ |
1432 | hold_last_name = di->last_name; |
1433 | |
1434 | while (peek = d_peek_char (di), |
1435 | peek == 'B') |
1436 | { |
1437 | struct demangle_component *tag; |
1438 | d_advance (di, 1); |
1439 | tag = d_source_name (di); |
1440 | dc = d_make_comp (di, type: DEMANGLE_COMPONENT_TAGGED_NAME, left: dc, right: tag); |
1441 | } |
1442 | |
1443 | di->last_name = hold_last_name; |
1444 | |
1445 | return dc; |
1446 | } |
1447 | |
1448 | /* <name> ::= <nested-name> |
1449 | ::= <unscoped-name> |
1450 | ::= <unscoped-template-name> <template-args> |
1451 | ::= <local-name> |
1452 | |
1453 | <unscoped-name> ::= <unqualified-name> |
1454 | ::= St <unqualified-name> |
1455 | |
1456 | <unscoped-template-name> ::= <unscoped-name> |
1457 | ::= <substitution> |
1458 | */ |
1459 | |
1460 | static struct demangle_component * |
1461 | d_name (struct d_info *di, int substable) |
1462 | { |
1463 | char peek = d_peek_char (di); |
1464 | struct demangle_component *dc = NULL; |
1465 | struct demangle_component *module = NULL; |
1466 | int subst = 0; |
1467 | |
1468 | switch (peek) |
1469 | { |
1470 | case 'N': |
1471 | dc = d_nested_name (di); |
1472 | break; |
1473 | |
1474 | case 'Z': |
1475 | dc = d_local_name (di); |
1476 | break; |
1477 | |
1478 | case 'U': |
1479 | dc = d_unqualified_name (di, NULL, NULL); |
1480 | break; |
1481 | |
1482 | case 'S': |
1483 | { |
1484 | if (d_peek_next_char (di) == 't') |
1485 | { |
1486 | d_advance (di, 2); |
1487 | dc = d_make_name (di, s: "std" , len: 3); |
1488 | di->expansion += 3; |
1489 | } |
1490 | |
1491 | if (d_peek_char (di) == 'S') |
1492 | { |
1493 | module = d_substitution (di, 0); |
1494 | if (!module) |
1495 | return NULL; |
1496 | if (!(module->type == DEMANGLE_COMPONENT_MODULE_NAME |
1497 | || module->type == DEMANGLE_COMPONENT_MODULE_PARTITION)) |
1498 | { |
1499 | if (dc) |
1500 | return NULL; |
1501 | subst = 1; |
1502 | dc = module; |
1503 | module = NULL; |
1504 | } |
1505 | } |
1506 | } |
1507 | /* FALLTHROUGH */ |
1508 | |
1509 | case 'L': |
1510 | default: |
1511 | if (!subst) |
1512 | dc = d_unqualified_name (di, scope: dc, module); |
1513 | if (d_peek_char (di) == 'I') |
1514 | { |
1515 | /* This is <template-args>, which means that we just saw |
1516 | <unscoped-template-name>, which is a substitution |
1517 | candidate. */ |
1518 | if (!subst && !d_add_substitution (di, dc)) |
1519 | return NULL; |
1520 | dc = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, left: dc, |
1521 | right: d_template_args (di)); |
1522 | subst = 0; |
1523 | } |
1524 | break; |
1525 | } |
1526 | if (substable && !subst && !d_add_substitution (di, dc)) |
1527 | return NULL; |
1528 | return dc; |
1529 | } |
1530 | |
1531 | /* <nested-name> ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E |
1532 | ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix> <template-args> E |
1533 | */ |
1534 | |
1535 | static struct demangle_component * |
1536 | d_nested_name (struct d_info *di) |
1537 | { |
1538 | struct demangle_component *ret; |
1539 | struct demangle_component **pret; |
1540 | struct demangle_component *rqual; |
1541 | |
1542 | if (! d_check_char (di, 'N')) |
1543 | return NULL; |
1544 | |
1545 | pret = d_cv_qualifiers (di, &ret, 1); |
1546 | if (pret == NULL) |
1547 | return NULL; |
1548 | |
1549 | /* Parse the ref-qualifier now and then attach it |
1550 | once we have something to attach it to. */ |
1551 | rqual = d_ref_qualifier (di, NULL); |
1552 | |
1553 | *pret = d_prefix (di, 1); |
1554 | if (*pret == NULL) |
1555 | return NULL; |
1556 | |
1557 | if (rqual) |
1558 | { |
1559 | d_left (rqual) = ret; |
1560 | ret = rqual; |
1561 | } |
1562 | |
1563 | if (! d_check_char (di, 'E')) |
1564 | return NULL; |
1565 | |
1566 | return ret; |
1567 | } |
1568 | |
1569 | /* <prefix> ::= <prefix> <unqualified-name> |
1570 | ::= <template-prefix> <template-args> |
1571 | ::= <template-param> |
1572 | ::= <decltype> |
1573 | ::= |
1574 | ::= <substitution> |
1575 | |
1576 | <template-prefix> ::= <prefix> <(template) unqualified-name> |
1577 | ::= <template-param> |
1578 | ::= <substitution> |
1579 | |
1580 | SUBST is true if we should add substitutions (as normal), false |
1581 | if not (in an unresolved-name). */ |
1582 | |
1583 | static struct demangle_component * |
1584 | d_prefix (struct d_info *di, int substable) |
1585 | { |
1586 | struct demangle_component *ret = NULL; |
1587 | |
1588 | for (;;) |
1589 | { |
1590 | char peek = d_peek_char (di); |
1591 | |
1592 | /* The older code accepts a <local-name> here, but I don't see |
1593 | that in the grammar. The older code does not accept a |
1594 | <template-param> here. */ |
1595 | |
1596 | if (peek == 'D' |
1597 | && (d_peek_next_char (di) == 'T' |
1598 | || d_peek_next_char (di) == 't')) |
1599 | { |
1600 | /* Decltype. */ |
1601 | if (ret) |
1602 | return NULL; |
1603 | ret = cplus_demangle_type (di); |
1604 | } |
1605 | else if (peek == 'I') |
1606 | { |
1607 | if (ret == NULL) |
1608 | return NULL; |
1609 | struct demangle_component *dc = d_template_args (di); |
1610 | if (!dc) |
1611 | return NULL; |
1612 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, left: ret, right: dc); |
1613 | } |
1614 | else if (peek == 'T') |
1615 | { |
1616 | if (ret) |
1617 | return NULL; |
1618 | ret = d_template_param (di); |
1619 | } |
1620 | else if (peek == 'M') |
1621 | { |
1622 | /* Initializer scope for a lambda. We already added it as a |
1623 | substitution candidate, don't do that again. */ |
1624 | d_advance (di, 1); |
1625 | continue; |
1626 | } |
1627 | else |
1628 | { |
1629 | struct demangle_component *module = NULL; |
1630 | if (peek == 'S') |
1631 | { |
1632 | module = d_substitution (di, 1); |
1633 | if (!module) |
1634 | return NULL; |
1635 | if (!(module->type == DEMANGLE_COMPONENT_MODULE_NAME |
1636 | || module->type == DEMANGLE_COMPONENT_MODULE_PARTITION)) |
1637 | { |
1638 | if (ret) |
1639 | return NULL; |
1640 | ret = module; |
1641 | continue; |
1642 | } |
1643 | } |
1644 | ret = d_unqualified_name (di, scope: ret, module); |
1645 | } |
1646 | |
1647 | if (!ret) |
1648 | break; |
1649 | |
1650 | if (d_peek_char (di) == 'E') |
1651 | break; |
1652 | |
1653 | if (substable && !d_add_substitution (di, ret)) |
1654 | return NULL; |
1655 | } |
1656 | |
1657 | return ret; |
1658 | } |
1659 | |
1660 | static int |
1661 | d_maybe_module_name (struct d_info *di, struct demangle_component **name) |
1662 | { |
1663 | while (d_peek_char (di) == 'W') |
1664 | { |
1665 | d_advance (di, 1); |
1666 | enum demangle_component_type code = DEMANGLE_COMPONENT_MODULE_NAME; |
1667 | if (d_peek_char (di) == 'P') |
1668 | { |
1669 | code = DEMANGLE_COMPONENT_MODULE_PARTITION; |
1670 | d_advance (di, 1); |
1671 | } |
1672 | |
1673 | *name = d_make_comp (di, type: code, left: *name, right: d_source_name (di)); |
1674 | if (!*name) |
1675 | return 0; |
1676 | if (!d_add_substitution (di, *name)) |
1677 | return 0; |
1678 | } |
1679 | return 1; |
1680 | } |
1681 | |
1682 | /* <unqualified-name> ::= [<module-name>] <operator-name> [<abi-tags>] |
1683 | ::= [<module-name>] <ctor-dtor-name> [<abi-tags>] |
1684 | ::= [<module-name>] <source-name> [<abi-tags>] |
1685 | ::= [<module-name>] F <source-name> [<abi-tags>] |
1686 | ::= [<module-name>] <local-source-name> [<abi-tags>] |
1687 | ::= [<module-name>] DC <source-name>+ E [<abi-tags>] |
1688 | <local-source-name> ::= L <source-name> <discriminator> [<abi-tags>] |
1689 | */ |
1690 | |
1691 | static struct demangle_component * |
1692 | d_unqualified_name (struct d_info *di, struct demangle_component *scope, |
1693 | struct demangle_component *module) |
1694 | { |
1695 | struct demangle_component *ret; |
1696 | char peek; |
1697 | int member_like_friend = 0; |
1698 | |
1699 | if (!d_maybe_module_name (di, name: &module)) |
1700 | return NULL; |
1701 | |
1702 | peek = d_peek_char (di); |
1703 | if (peek == 'F') |
1704 | { |
1705 | member_like_friend = 1; |
1706 | d_advance (di, 1); |
1707 | peek = d_peek_char (di); |
1708 | } |
1709 | if (IS_DIGIT (peek)) |
1710 | ret = d_source_name (di); |
1711 | else if (IS_LOWER (peek)) |
1712 | { |
1713 | int was_expr = di->is_expression; |
1714 | if (peek == 'o' && d_peek_next_char (di) == 'n') |
1715 | { |
1716 | d_advance (di, 2); |
1717 | /* Treat cv as naming a conversion operator. */ |
1718 | di->is_expression = 0; |
1719 | } |
1720 | ret = d_operator_name (di); |
1721 | di->is_expression = was_expr; |
1722 | if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR) |
1723 | { |
1724 | di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2; |
1725 | if (!strcmp (s1: ret->u.s_operator.op->code, s2: "li" )) |
1726 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_UNARY, left: ret, |
1727 | right: d_source_name (di)); |
1728 | } |
1729 | } |
1730 | else if (peek == 'D' && d_peek_next_char (di) == 'C') |
1731 | { |
1732 | // structured binding |
1733 | d_advance (di, 2); |
1734 | struct demangle_component *prev = NULL; |
1735 | do |
1736 | { |
1737 | struct demangle_component *next = |
1738 | d_make_comp (di, type: DEMANGLE_COMPONENT_STRUCTURED_BINDING, |
1739 | left: d_source_name (di), NULL); |
1740 | if (prev) |
1741 | d_right (prev) = next; |
1742 | else |
1743 | ret = next; |
1744 | prev = next; |
1745 | } |
1746 | while (prev && d_peek_char (di) != 'E'); |
1747 | if (prev) |
1748 | d_advance (di, 1); |
1749 | else |
1750 | ret = NULL; |
1751 | } |
1752 | else if (peek == 'C' || peek == 'D') |
1753 | ret = d_ctor_dtor_name (di); |
1754 | else if (peek == 'L') |
1755 | { |
1756 | d_advance (di, 1); |
1757 | |
1758 | ret = d_source_name (di); |
1759 | if (ret == NULL) |
1760 | return NULL; |
1761 | if (! d_discriminator (di)) |
1762 | return NULL; |
1763 | } |
1764 | else if (peek == 'U') |
1765 | { |
1766 | switch (d_peek_next_char (di)) |
1767 | { |
1768 | case 'l': |
1769 | ret = d_lambda (di); |
1770 | break; |
1771 | case 't': |
1772 | ret = d_unnamed_type (di); |
1773 | break; |
1774 | default: |
1775 | return NULL; |
1776 | } |
1777 | } |
1778 | else |
1779 | return NULL; |
1780 | |
1781 | if (module) |
1782 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_MODULE_ENTITY, left: ret, right: module); |
1783 | if (d_peek_char (di) == 'B') |
1784 | ret = d_abi_tags (di, dc: ret); |
1785 | if (member_like_friend) |
1786 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_FRIEND, left: ret, NULL); |
1787 | if (scope) |
1788 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_QUAL_NAME, left: scope, right: ret); |
1789 | |
1790 | return ret; |
1791 | } |
1792 | |
1793 | /* <source-name> ::= <(positive length) number> <identifier> */ |
1794 | |
1795 | static struct demangle_component * |
1796 | d_source_name (struct d_info *di) |
1797 | { |
1798 | int len; |
1799 | struct demangle_component *ret; |
1800 | |
1801 | len = d_number (di); |
1802 | if (len <= 0) |
1803 | return NULL; |
1804 | ret = d_identifier (di, len); |
1805 | di->last_name = ret; |
1806 | return ret; |
1807 | } |
1808 | |
1809 | /* number ::= [n] <(non-negative decimal integer)> */ |
1810 | |
1811 | static int |
1812 | d_number (struct d_info *di) |
1813 | { |
1814 | int negative; |
1815 | char peek; |
1816 | int ret; |
1817 | |
1818 | negative = 0; |
1819 | peek = d_peek_char (di); |
1820 | if (peek == 'n') |
1821 | { |
1822 | negative = 1; |
1823 | d_advance (di, 1); |
1824 | peek = d_peek_char (di); |
1825 | } |
1826 | |
1827 | ret = 0; |
1828 | while (1) |
1829 | { |
1830 | if (! IS_DIGIT (peek)) |
1831 | { |
1832 | if (negative) |
1833 | ret = - ret; |
1834 | return ret; |
1835 | } |
1836 | if (ret > ((INT_MAX - (peek - '0')) / 10)) |
1837 | return -1; |
1838 | ret = ret * 10 + (peek - '0'); |
1839 | d_advance (di, 1); |
1840 | peek = d_peek_char (di); |
1841 | } |
1842 | } |
1843 | |
1844 | /* Like d_number, but returns a demangle_component. */ |
1845 | |
1846 | static struct demangle_component * |
1847 | d_number_component (struct d_info *di) |
1848 | { |
1849 | struct demangle_component *ret = d_make_empty (di); |
1850 | if (ret) |
1851 | { |
1852 | ret->type = DEMANGLE_COMPONENT_NUMBER; |
1853 | ret->u.s_number.number = d_number (di); |
1854 | } |
1855 | return ret; |
1856 | } |
1857 | |
1858 | /* identifier ::= <(unqualified source code identifier)> */ |
1859 | |
1860 | static struct demangle_component * |
1861 | d_identifier (struct d_info *di, int len) |
1862 | { |
1863 | const char *name; |
1864 | |
1865 | name = d_str (di); |
1866 | |
1867 | if (di->send - name < len) |
1868 | return NULL; |
1869 | |
1870 | d_advance (di, len); |
1871 | |
1872 | /* A Java mangled name may have a trailing '$' if it is a C++ |
1873 | keyword. This '$' is not included in the length count. We just |
1874 | ignore the '$'. */ |
1875 | if ((di->options & DMGL_JAVA) != 0 |
1876 | && d_peek_char (di) == '$') |
1877 | d_advance (di, 1); |
1878 | |
1879 | /* Look for something which looks like a gcc encoding of an |
1880 | anonymous namespace, and replace it with a more user friendly |
1881 | name. */ |
1882 | if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2 |
1883 | && memcmp (s1: name, ANONYMOUS_NAMESPACE_PREFIX, |
1884 | ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0) |
1885 | { |
1886 | const char *s; |
1887 | |
1888 | s = name + ANONYMOUS_NAMESPACE_PREFIX_LEN; |
1889 | if ((*s == '.' || *s == '_' || *s == '$') |
1890 | && s[1] == 'N') |
1891 | { |
1892 | di->expansion -= len - sizeof "(anonymous namespace)" ; |
1893 | return d_make_name (di, s: "(anonymous namespace)" , |
1894 | len: sizeof "(anonymous namespace)" - 1); |
1895 | } |
1896 | } |
1897 | |
1898 | return d_make_name (di, s: name, len); |
1899 | } |
1900 | |
1901 | /* operator_name ::= many different two character encodings. |
1902 | ::= cv <type> |
1903 | ::= v <digit> <source-name> |
1904 | |
1905 | This list is sorted for binary search. */ |
1906 | |
1907 | #define NL(s) s, (sizeof s) - 1 |
1908 | |
1909 | CP_STATIC_IF_GLIBCPP_V3 |
1910 | const struct demangle_operator_info cplus_demangle_operators[] = |
1911 | { |
1912 | { .code: "aN" , NL ("&=" ), .args: 2 }, |
1913 | { .code: "aS" , NL ("=" ), .args: 2 }, |
1914 | { .code: "aa" , NL ("&&" ), .args: 2 }, |
1915 | { .code: "ad" , NL ("&" ), .args: 1 }, |
1916 | { .code: "an" , NL ("&" ), .args: 2 }, |
1917 | { .code: "at" , NL ("alignof " ), .args: 1 }, |
1918 | { .code: "aw" , NL ("co_await " ), .args: 1 }, |
1919 | { .code: "az" , NL ("alignof " ), .args: 1 }, |
1920 | { .code: "cc" , NL ("const_cast" ), .args: 2 }, |
1921 | { .code: "cl" , NL ("()" ), .args: 2 }, |
1922 | { .code: "cm" , NL ("," ), .args: 2 }, |
1923 | { .code: "co" , NL ("~" ), .args: 1 }, |
1924 | { .code: "dV" , NL ("/=" ), .args: 2 }, |
1925 | { .code: "dX" , NL ("[...]=" ), .args: 3 }, /* [expr...expr] = expr */ |
1926 | { .code: "da" , NL ("delete[] " ), .args: 1 }, |
1927 | { .code: "dc" , NL ("dynamic_cast" ), .args: 2 }, |
1928 | { .code: "de" , NL ("*" ), .args: 1 }, |
1929 | { .code: "di" , NL ("=" ), .args: 2 }, /* .name = expr */ |
1930 | { .code: "dl" , NL ("delete " ), .args: 1 }, |
1931 | { .code: "ds" , NL (".*" ), .args: 2 }, |
1932 | { .code: "dt" , NL ("." ), .args: 2 }, |
1933 | { .code: "dv" , NL ("/" ), .args: 2 }, |
1934 | { .code: "dx" , NL ("]=" ), .args: 2 }, /* [expr] = expr */ |
1935 | { .code: "eO" , NL ("^=" ), .args: 2 }, |
1936 | { .code: "eo" , NL ("^" ), .args: 2 }, |
1937 | { .code: "eq" , NL ("==" ), .args: 2 }, |
1938 | { .code: "fL" , NL ("..." ), .args: 3 }, |
1939 | { .code: "fR" , NL ("..." ), .args: 3 }, |
1940 | { .code: "fl" , NL ("..." ), .args: 2 }, |
1941 | { .code: "fr" , NL ("..." ), .args: 2 }, |
1942 | { .code: "ge" , NL (">=" ), .args: 2 }, |
1943 | { .code: "gs" , NL ("::" ), .args: 1 }, |
1944 | { .code: "gt" , NL (">" ), .args: 2 }, |
1945 | { .code: "ix" , NL ("[]" ), .args: 2 }, |
1946 | { .code: "lS" , NL ("<<=" ), .args: 2 }, |
1947 | { .code: "le" , NL ("<=" ), .args: 2 }, |
1948 | { .code: "li" , NL ("operator\"\" " ), .args: 1 }, |
1949 | { .code: "ls" , NL ("<<" ), .args: 2 }, |
1950 | { .code: "lt" , NL ("<" ), .args: 2 }, |
1951 | { .code: "mI" , NL ("-=" ), .args: 2 }, |
1952 | { .code: "mL" , NL ("*=" ), .args: 2 }, |
1953 | { .code: "mi" , NL ("-" ), .args: 2 }, |
1954 | { .code: "ml" , NL ("*" ), .args: 2 }, |
1955 | { .code: "mm" , NL ("--" ), .args: 1 }, |
1956 | { .code: "na" , NL ("new[]" ), .args: 3 }, |
1957 | { .code: "ne" , NL ("!=" ), .args: 2 }, |
1958 | { .code: "ng" , NL ("-" ), .args: 1 }, |
1959 | { .code: "nt" , NL ("!" ), .args: 1 }, |
1960 | { .code: "nw" , NL ("new" ), .args: 3 }, |
1961 | { .code: "nx" , NL ("noexcept" ), .args: 1 }, |
1962 | { .code: "oR" , NL ("|=" ), .args: 2 }, |
1963 | { .code: "oo" , NL ("||" ), .args: 2 }, |
1964 | { .code: "or" , NL ("|" ), .args: 2 }, |
1965 | { .code: "pL" , NL ("+=" ), .args: 2 }, |
1966 | { .code: "pl" , NL ("+" ), .args: 2 }, |
1967 | { .code: "pm" , NL ("->*" ), .args: 2 }, |
1968 | { .code: "pp" , NL ("++" ), .args: 1 }, |
1969 | { .code: "ps" , NL ("+" ), .args: 1 }, |
1970 | { .code: "pt" , NL ("->" ), .args: 2 }, |
1971 | { .code: "qu" , NL ("?" ), .args: 3 }, |
1972 | { .code: "rM" , NL ("%=" ), .args: 2 }, |
1973 | { .code: "rS" , NL (">>=" ), .args: 2 }, |
1974 | { .code: "rc" , NL ("reinterpret_cast" ), .args: 2 }, |
1975 | { .code: "rm" , NL ("%" ), .args: 2 }, |
1976 | { .code: "rs" , NL (">>" ), .args: 2 }, |
1977 | { .code: "sP" , NL ("sizeof..." ), .args: 1 }, |
1978 | { .code: "sZ" , NL ("sizeof..." ), .args: 1 }, |
1979 | { .code: "sc" , NL ("static_cast" ), .args: 2 }, |
1980 | { .code: "ss" , NL ("<=>" ), .args: 2 }, |
1981 | { .code: "st" , NL ("sizeof " ), .args: 1 }, |
1982 | { .code: "sz" , NL ("sizeof " ), .args: 1 }, |
1983 | { .code: "tr" , NL ("throw" ), .args: 0 }, |
1984 | { .code: "tw" , NL ("throw " ), .args: 1 }, |
1985 | { NULL, NULL, .len: 0, .args: 0 } |
1986 | }; |
1987 | |
1988 | static struct demangle_component * |
1989 | d_operator_name (struct d_info *di) |
1990 | { |
1991 | char c1; |
1992 | char c2; |
1993 | |
1994 | c1 = d_next_char (di); |
1995 | c2 = d_next_char (di); |
1996 | if (c1 == 'v' && IS_DIGIT (c2)) |
1997 | return d_make_extended_operator (di, args: c2 - '0', name: d_source_name (di)); |
1998 | else if (c1 == 'c' && c2 == 'v') |
1999 | { |
2000 | struct demangle_component *type; |
2001 | int was_conversion = di->is_conversion; |
2002 | struct demangle_component *res; |
2003 | |
2004 | di->is_conversion = ! di->is_expression; |
2005 | type = cplus_demangle_type (di); |
2006 | if (di->is_conversion) |
2007 | res = d_make_comp (di, type: DEMANGLE_COMPONENT_CONVERSION, left: type, NULL); |
2008 | else |
2009 | res = d_make_comp (di, type: DEMANGLE_COMPONENT_CAST, left: type, NULL); |
2010 | di->is_conversion = was_conversion; |
2011 | return res; |
2012 | } |
2013 | else |
2014 | { |
2015 | /* LOW is the inclusive lower bound. */ |
2016 | int low = 0; |
2017 | /* HIGH is the exclusive upper bound. We subtract one to ignore |
2018 | the sentinel at the end of the array. */ |
2019 | int high = ((sizeof (cplus_demangle_operators) |
2020 | / sizeof (cplus_demangle_operators[0])) |
2021 | - 1); |
2022 | |
2023 | while (1) |
2024 | { |
2025 | int i; |
2026 | const struct demangle_operator_info *p; |
2027 | |
2028 | i = low + (high - low) / 2; |
2029 | p = cplus_demangle_operators + i; |
2030 | |
2031 | if (c1 == p->code[0] && c2 == p->code[1]) |
2032 | return d_make_operator (di, op: p); |
2033 | |
2034 | if (c1 < p->code[0] || (c1 == p->code[0] && c2 < p->code[1])) |
2035 | high = i; |
2036 | else |
2037 | low = i + 1; |
2038 | if (low == high) |
2039 | return NULL; |
2040 | } |
2041 | } |
2042 | } |
2043 | |
2044 | static struct demangle_component * |
2045 | d_make_character (struct d_info *di, int c) |
2046 | { |
2047 | struct demangle_component *p; |
2048 | p = d_make_empty (di); |
2049 | if (p != NULL) |
2050 | { |
2051 | p->type = DEMANGLE_COMPONENT_CHARACTER; |
2052 | p->u.s_character.character = c; |
2053 | } |
2054 | return p; |
2055 | } |
2056 | |
2057 | static struct demangle_component * |
2058 | d_java_resource (struct d_info *di) |
2059 | { |
2060 | struct demangle_component *p = NULL; |
2061 | struct demangle_component *next = NULL; |
2062 | int len, i; |
2063 | char c; |
2064 | const char *str; |
2065 | |
2066 | len = d_number (di); |
2067 | if (len <= 1) |
2068 | return NULL; |
2069 | |
2070 | /* Eat the leading '_'. */ |
2071 | if (d_next_char (di) != '_') |
2072 | return NULL; |
2073 | len--; |
2074 | |
2075 | str = d_str (di); |
2076 | i = 0; |
2077 | |
2078 | while (len > 0) |
2079 | { |
2080 | c = str[i]; |
2081 | if (!c) |
2082 | return NULL; |
2083 | |
2084 | /* Each chunk is either a '$' escape... */ |
2085 | if (c == '$') |
2086 | { |
2087 | i++; |
2088 | switch (str[i++]) |
2089 | { |
2090 | case 'S': |
2091 | c = '/'; |
2092 | break; |
2093 | case '_': |
2094 | c = '.'; |
2095 | break; |
2096 | case '$': |
2097 | c = '$'; |
2098 | break; |
2099 | default: |
2100 | return NULL; |
2101 | } |
2102 | next = d_make_character (di, c); |
2103 | d_advance (di, i); |
2104 | str = d_str (di); |
2105 | len -= i; |
2106 | i = 0; |
2107 | if (next == NULL) |
2108 | return NULL; |
2109 | } |
2110 | /* ... or a sequence of characters. */ |
2111 | else |
2112 | { |
2113 | while (i < len && str[i] && str[i] != '$') |
2114 | i++; |
2115 | |
2116 | next = d_make_name (di, s: str, len: i); |
2117 | d_advance (di, i); |
2118 | str = d_str (di); |
2119 | len -= i; |
2120 | i = 0; |
2121 | if (next == NULL) |
2122 | return NULL; |
2123 | } |
2124 | |
2125 | if (p == NULL) |
2126 | p = next; |
2127 | else |
2128 | { |
2129 | p = d_make_comp (di, type: DEMANGLE_COMPONENT_COMPOUND_NAME, left: p, right: next); |
2130 | if (p == NULL) |
2131 | return NULL; |
2132 | } |
2133 | } |
2134 | |
2135 | p = d_make_comp (di, type: DEMANGLE_COMPONENT_JAVA_RESOURCE, left: p, NULL); |
2136 | |
2137 | return p; |
2138 | } |
2139 | |
2140 | /* <special-name> ::= TV <type> |
2141 | ::= TT <type> |
2142 | ::= TI <type> |
2143 | ::= TS <type> |
2144 | ::= TA <template-arg> |
2145 | ::= GV <(object) name> |
2146 | ::= T <call-offset> <(base) encoding> |
2147 | ::= Tc <call-offset> <call-offset> <(base) encoding> |
2148 | Also g++ extensions: |
2149 | ::= TC <type> <(offset) number> _ <(base) type> |
2150 | ::= TF <type> |
2151 | ::= TJ <type> |
2152 | ::= GR <name> |
2153 | ::= GA <encoding> |
2154 | ::= Gr <resource name> |
2155 | ::= GTt <encoding> |
2156 | ::= GTn <encoding> |
2157 | */ |
2158 | |
2159 | static struct demangle_component * |
2160 | d_special_name (struct d_info *di) |
2161 | { |
2162 | di->expansion += 20; |
2163 | if (d_check_char (di, 'T')) |
2164 | { |
2165 | switch (d_next_char (di)) |
2166 | { |
2167 | case 'V': |
2168 | di->expansion -= 5; |
2169 | return d_make_comp (di, type: DEMANGLE_COMPONENT_VTABLE, |
2170 | left: cplus_demangle_type (di), NULL); |
2171 | case 'T': |
2172 | di->expansion -= 10; |
2173 | return d_make_comp (di, type: DEMANGLE_COMPONENT_VTT, |
2174 | left: cplus_demangle_type (di), NULL); |
2175 | case 'I': |
2176 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TYPEINFO, |
2177 | left: cplus_demangle_type (di), NULL); |
2178 | case 'S': |
2179 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TYPEINFO_NAME, |
2180 | left: cplus_demangle_type (di), NULL); |
2181 | |
2182 | case 'h': |
2183 | if (! d_call_offset (di, 'h')) |
2184 | return NULL; |
2185 | return d_make_comp (di, type: DEMANGLE_COMPONENT_THUNK, |
2186 | left: d_encoding (di, top_level: 0), NULL); |
2187 | |
2188 | case 'v': |
2189 | if (! d_call_offset (di, 'v')) |
2190 | return NULL; |
2191 | return d_make_comp (di, type: DEMANGLE_COMPONENT_VIRTUAL_THUNK, |
2192 | left: d_encoding (di, top_level: 0), NULL); |
2193 | |
2194 | case 'c': |
2195 | if (! d_call_offset (di, '\0')) |
2196 | return NULL; |
2197 | if (! d_call_offset (di, '\0')) |
2198 | return NULL; |
2199 | return d_make_comp (di, type: DEMANGLE_COMPONENT_COVARIANT_THUNK, |
2200 | left: d_encoding (di, top_level: 0), NULL); |
2201 | |
2202 | case 'C': |
2203 | { |
2204 | struct demangle_component *derived_type; |
2205 | int offset; |
2206 | struct demangle_component *base_type; |
2207 | |
2208 | derived_type = cplus_demangle_type (di); |
2209 | offset = d_number (di); |
2210 | if (offset < 0) |
2211 | return NULL; |
2212 | if (! d_check_char (di, '_')) |
2213 | return NULL; |
2214 | base_type = cplus_demangle_type (di); |
2215 | /* We don't display the offset. FIXME: We should display |
2216 | it in verbose mode. */ |
2217 | di->expansion += 5; |
2218 | return d_make_comp (di, type: DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE, |
2219 | left: base_type, right: derived_type); |
2220 | } |
2221 | |
2222 | case 'F': |
2223 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TYPEINFO_FN, |
2224 | left: cplus_demangle_type (di), NULL); |
2225 | case 'J': |
2226 | return d_make_comp (di, type: DEMANGLE_COMPONENT_JAVA_CLASS, |
2227 | left: cplus_demangle_type (di), NULL); |
2228 | |
2229 | case 'H': |
2230 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TLS_INIT, |
2231 | left: d_name (di, substable: 0), NULL); |
2232 | |
2233 | case 'W': |
2234 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TLS_WRAPPER, |
2235 | left: d_name (di, substable: 0), NULL); |
2236 | |
2237 | case 'A': |
2238 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TPARM_OBJ, |
2239 | left: d_template_arg (di), NULL); |
2240 | |
2241 | default: |
2242 | return NULL; |
2243 | } |
2244 | } |
2245 | else if (d_check_char (di, 'G')) |
2246 | { |
2247 | switch (d_next_char (di)) |
2248 | { |
2249 | case 'V': |
2250 | return d_make_comp (di, type: DEMANGLE_COMPONENT_GUARD, |
2251 | left: d_name (di, substable: 0), NULL); |
2252 | |
2253 | case 'R': |
2254 | { |
2255 | struct demangle_component *name = d_name (di, substable: 0); |
2256 | return d_make_comp (di, type: DEMANGLE_COMPONENT_REFTEMP, left: name, |
2257 | right: d_number_component (di)); |
2258 | } |
2259 | |
2260 | case 'A': |
2261 | return d_make_comp (di, type: DEMANGLE_COMPONENT_HIDDEN_ALIAS, |
2262 | left: d_encoding (di, top_level: 0), NULL); |
2263 | |
2264 | case 'I': |
2265 | { |
2266 | struct demangle_component *module = NULL; |
2267 | if (!d_maybe_module_name (di, name: &module) || !module) |
2268 | return NULL; |
2269 | return d_make_comp (di, type: DEMANGLE_COMPONENT_MODULE_INIT, |
2270 | left: module, NULL); |
2271 | } |
2272 | case 'T': |
2273 | switch (d_next_char (di)) |
2274 | { |
2275 | case 'n': |
2276 | return d_make_comp (di, type: DEMANGLE_COMPONENT_NONTRANSACTION_CLONE, |
2277 | left: d_encoding (di, top_level: 0), NULL); |
2278 | default: |
2279 | /* ??? The proposal is that other letters (such as 'h') stand |
2280 | for different variants of transaction cloning, such as |
2281 | compiling directly for hardware transaction support. But |
2282 | they still should all be transactional clones of some sort |
2283 | so go ahead and call them that. */ |
2284 | case 't': |
2285 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TRANSACTION_CLONE, |
2286 | left: d_encoding (di, top_level: 0), NULL); |
2287 | } |
2288 | |
2289 | case 'r': |
2290 | return d_java_resource (di); |
2291 | |
2292 | default: |
2293 | return NULL; |
2294 | } |
2295 | } |
2296 | else |
2297 | return NULL; |
2298 | } |
2299 | |
2300 | /* <call-offset> ::= h <nv-offset> _ |
2301 | ::= v <v-offset> _ |
2302 | |
2303 | <nv-offset> ::= <(offset) number> |
2304 | |
2305 | <v-offset> ::= <(offset) number> _ <(virtual offset) number> |
2306 | |
2307 | The C parameter, if not '\0', is a character we just read which is |
2308 | the start of the <call-offset>. |
2309 | |
2310 | We don't display the offset information anywhere. FIXME: We should |
2311 | display it in verbose mode. */ |
2312 | |
2313 | static int |
2314 | d_call_offset (struct d_info *di, int c) |
2315 | { |
2316 | if (c == '\0') |
2317 | c = d_next_char (di); |
2318 | |
2319 | if (c == 'h') |
2320 | d_number (di); |
2321 | else if (c == 'v') |
2322 | { |
2323 | d_number (di); |
2324 | if (! d_check_char (di, '_')) |
2325 | return 0; |
2326 | d_number (di); |
2327 | } |
2328 | else |
2329 | return 0; |
2330 | |
2331 | if (! d_check_char (di, '_')) |
2332 | return 0; |
2333 | |
2334 | return 1; |
2335 | } |
2336 | |
2337 | /* <ctor-dtor-name> ::= C1 |
2338 | ::= C2 |
2339 | ::= C3 |
2340 | ::= D0 |
2341 | ::= D1 |
2342 | ::= D2 |
2343 | */ |
2344 | |
2345 | static struct demangle_component * |
2346 | d_ctor_dtor_name (struct d_info *di) |
2347 | { |
2348 | if (di->last_name != NULL) |
2349 | { |
2350 | if (di->last_name->type == DEMANGLE_COMPONENT_NAME) |
2351 | di->expansion += di->last_name->u.s_name.len; |
2352 | else if (di->last_name->type == DEMANGLE_COMPONENT_SUB_STD) |
2353 | di->expansion += di->last_name->u.s_string.len; |
2354 | } |
2355 | switch (d_peek_char (di)) |
2356 | { |
2357 | case 'C': |
2358 | { |
2359 | enum gnu_v3_ctor_kinds kind; |
2360 | int inheriting = 0; |
2361 | |
2362 | if (d_peek_next_char (di) == 'I') |
2363 | { |
2364 | inheriting = 1; |
2365 | d_advance (di, 1); |
2366 | } |
2367 | |
2368 | switch (d_peek_next_char (di)) |
2369 | { |
2370 | case '1': |
2371 | kind = gnu_v3_complete_object_ctor; |
2372 | break; |
2373 | case '2': |
2374 | kind = gnu_v3_base_object_ctor; |
2375 | break; |
2376 | case '3': |
2377 | kind = gnu_v3_complete_object_allocating_ctor; |
2378 | break; |
2379 | case '4': |
2380 | kind = gnu_v3_unified_ctor; |
2381 | break; |
2382 | case '5': |
2383 | kind = gnu_v3_object_ctor_group; |
2384 | break; |
2385 | default: |
2386 | return NULL; |
2387 | } |
2388 | |
2389 | d_advance (di, 2); |
2390 | |
2391 | if (inheriting) |
2392 | cplus_demangle_type (di); |
2393 | |
2394 | return d_make_ctor (di, kind, name: di->last_name); |
2395 | } |
2396 | |
2397 | case 'D': |
2398 | { |
2399 | enum gnu_v3_dtor_kinds kind; |
2400 | |
2401 | switch (d_peek_next_char (di)) |
2402 | { |
2403 | case '0': |
2404 | kind = gnu_v3_deleting_dtor; |
2405 | break; |
2406 | case '1': |
2407 | kind = gnu_v3_complete_object_dtor; |
2408 | break; |
2409 | case '2': |
2410 | kind = gnu_v3_base_object_dtor; |
2411 | break; |
2412 | /* digit '3' is not used */ |
2413 | case '4': |
2414 | kind = gnu_v3_unified_dtor; |
2415 | break; |
2416 | case '5': |
2417 | kind = gnu_v3_object_dtor_group; |
2418 | break; |
2419 | default: |
2420 | return NULL; |
2421 | } |
2422 | d_advance (di, 2); |
2423 | return d_make_dtor (di, kind, name: di->last_name); |
2424 | } |
2425 | |
2426 | default: |
2427 | return NULL; |
2428 | } |
2429 | } |
2430 | |
2431 | /* True iff we're looking at an order-insensitive type-qualifier, including |
2432 | function-type-qualifiers. */ |
2433 | |
2434 | static int |
2435 | next_is_type_qual (struct d_info *di) |
2436 | { |
2437 | char peek = d_peek_char (di); |
2438 | if (peek == 'r' || peek == 'V' || peek == 'K') |
2439 | return 1; |
2440 | if (peek == 'D') |
2441 | { |
2442 | peek = d_peek_next_char (di); |
2443 | if (peek == 'x' || peek == 'o' || peek == 'O' || peek == 'w') |
2444 | return 1; |
2445 | } |
2446 | return 0; |
2447 | } |
2448 | |
2449 | /* <type> ::= <builtin-type> |
2450 | ::= <function-type> |
2451 | ::= <class-enum-type> |
2452 | ::= <array-type> |
2453 | ::= <pointer-to-member-type> |
2454 | ::= <template-param> |
2455 | ::= <template-template-param> <template-args> |
2456 | ::= <substitution> |
2457 | ::= <CV-qualifiers> <type> |
2458 | ::= P <type> |
2459 | ::= R <type> |
2460 | ::= O <type> (C++0x) |
2461 | ::= C <type> |
2462 | ::= G <type> |
2463 | ::= U <source-name> <type> |
2464 | |
2465 | <builtin-type> ::= various one letter codes |
2466 | ::= u <source-name> |
2467 | */ |
2468 | |
2469 | CP_STATIC_IF_GLIBCPP_V3 |
2470 | const struct demangle_builtin_type_info |
2471 | cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT] = |
2472 | { |
2473 | /* a */ { NL ("signed char" ), NL ("signed char" ), .print: D_PRINT_DEFAULT }, |
2474 | /* b */ { NL ("bool" ), NL ("boolean" ), .print: D_PRINT_BOOL }, |
2475 | /* c */ { NL ("char" ), NL ("byte" ), .print: D_PRINT_DEFAULT }, |
2476 | /* d */ { NL ("double" ), NL ("double" ), .print: D_PRINT_FLOAT }, |
2477 | /* e */ { NL ("long double" ), NL ("long double" ), .print: D_PRINT_FLOAT }, |
2478 | /* f */ { NL ("float" ), NL ("float" ), .print: D_PRINT_FLOAT }, |
2479 | /* g */ { NL ("__float128" ), NL ("__float128" ), .print: D_PRINT_FLOAT }, |
2480 | /* h */ { NL ("unsigned char" ), NL ("unsigned char" ), .print: D_PRINT_DEFAULT }, |
2481 | /* i */ { NL ("int" ), NL ("int" ), .print: D_PRINT_INT }, |
2482 | /* j */ { NL ("unsigned int" ), NL ("unsigned" ), .print: D_PRINT_UNSIGNED }, |
2483 | /* k */ { NULL, .len: 0, NULL, .java_len: 0, .print: D_PRINT_DEFAULT }, |
2484 | /* l */ { NL ("long" ), NL ("long" ), .print: D_PRINT_LONG }, |
2485 | /* m */ { NL ("unsigned long" ), NL ("unsigned long" ), .print: D_PRINT_UNSIGNED_LONG }, |
2486 | /* n */ { NL ("__int128" ), NL ("__int128" ), .print: D_PRINT_DEFAULT }, |
2487 | /* o */ { NL ("unsigned __int128" ), NL ("unsigned __int128" ), |
2488 | .print: D_PRINT_DEFAULT }, |
2489 | /* p */ { NULL, .len: 0, NULL, .java_len: 0, .print: D_PRINT_DEFAULT }, |
2490 | /* q */ { NULL, .len: 0, NULL, .java_len: 0, .print: D_PRINT_DEFAULT }, |
2491 | /* r */ { NULL, .len: 0, NULL, .java_len: 0, .print: D_PRINT_DEFAULT }, |
2492 | /* s */ { NL ("short" ), NL ("short" ), .print: D_PRINT_DEFAULT }, |
2493 | /* t */ { NL ("unsigned short" ), NL ("unsigned short" ), .print: D_PRINT_DEFAULT }, |
2494 | /* u */ { NULL, .len: 0, NULL, .java_len: 0, .print: D_PRINT_DEFAULT }, |
2495 | /* v */ { NL ("void" ), NL ("void" ), .print: D_PRINT_VOID }, |
2496 | /* w */ { NL ("wchar_t" ), NL ("char" ), .print: D_PRINT_DEFAULT }, |
2497 | /* x */ { NL ("long long" ), NL ("long" ), .print: D_PRINT_LONG_LONG }, |
2498 | /* y */ { NL ("unsigned long long" ), NL ("unsigned long long" ), |
2499 | .print: D_PRINT_UNSIGNED_LONG_LONG }, |
2500 | /* z */ { NL ("..." ), NL ("..." ), .print: D_PRINT_DEFAULT }, |
2501 | /* 26 */ { NL ("decimal32" ), NL ("decimal32" ), .print: D_PRINT_DEFAULT }, |
2502 | /* 27 */ { NL ("decimal64" ), NL ("decimal64" ), .print: D_PRINT_DEFAULT }, |
2503 | /* 28 */ { NL ("decimal128" ), NL ("decimal128" ), .print: D_PRINT_DEFAULT }, |
2504 | /* 29 */ { NL ("half" ), NL ("half" ), .print: D_PRINT_FLOAT }, |
2505 | /* 30 */ { NL ("char8_t" ), NL ("char8_t" ), .print: D_PRINT_DEFAULT }, |
2506 | /* 31 */ { NL ("char16_t" ), NL ("char16_t" ), .print: D_PRINT_DEFAULT }, |
2507 | /* 32 */ { NL ("char32_t" ), NL ("char32_t" ), .print: D_PRINT_DEFAULT }, |
2508 | /* 33 */ { NL ("decltype(nullptr)" ), NL ("decltype(nullptr)" ), |
2509 | .print: D_PRINT_DEFAULT }, |
2510 | /* 34 */ { NL ("_Float" ), NL ("_Float" ), .print: D_PRINT_FLOAT }, |
2511 | /* 35 */ { NL ("std::bfloat16_t" ), NL ("std::bfloat16_t" ), .print: D_PRINT_FLOAT }, |
2512 | }; |
2513 | |
2514 | CP_STATIC_IF_GLIBCPP_V3 |
2515 | struct demangle_component * |
2516 | cplus_demangle_type (struct d_info *di) |
2517 | { |
2518 | char peek; |
2519 | struct demangle_component *ret; |
2520 | int can_subst; |
2521 | |
2522 | /* The ABI specifies that when CV-qualifiers are used, the base type |
2523 | is substitutable, and the fully qualified type is substitutable, |
2524 | but the base type with a strict subset of the CV-qualifiers is |
2525 | not substitutable. The natural recursive implementation of the |
2526 | CV-qualifiers would cause subsets to be substitutable, so instead |
2527 | we pull them all off now. |
2528 | |
2529 | FIXME: The ABI says that order-insensitive vendor qualifiers |
2530 | should be handled in the same way, but we have no way to tell |
2531 | which vendor qualifiers are order-insensitive and which are |
2532 | order-sensitive. So we just assume that they are all |
2533 | order-sensitive. g++ 3.4 supports only one vendor qualifier, |
2534 | __vector, and it treats it as order-sensitive when mangling |
2535 | names. */ |
2536 | |
2537 | if (next_is_type_qual (di)) |
2538 | { |
2539 | struct demangle_component **pret; |
2540 | |
2541 | pret = d_cv_qualifiers (di, &ret, 0); |
2542 | if (pret == NULL) |
2543 | return NULL; |
2544 | if (d_peek_char (di) == 'F') |
2545 | { |
2546 | /* cv-qualifiers before a function type apply to 'this', |
2547 | so avoid adding the unqualified function type to |
2548 | the substitution list. */ |
2549 | *pret = d_function_type (di); |
2550 | } |
2551 | else |
2552 | *pret = cplus_demangle_type (di); |
2553 | if (!*pret) |
2554 | return NULL; |
2555 | if ((*pret)->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS |
2556 | || (*pret)->type == DEMANGLE_COMPONENT_REFERENCE_THIS) |
2557 | { |
2558 | /* Move the ref-qualifier outside the cv-qualifiers so that |
2559 | they are printed in the right order. */ |
2560 | struct demangle_component *fn = d_left (*pret); |
2561 | d_left (*pret) = ret; |
2562 | ret = *pret; |
2563 | *pret = fn; |
2564 | } |
2565 | if (! d_add_substitution (di, ret)) |
2566 | return NULL; |
2567 | return ret; |
2568 | } |
2569 | |
2570 | can_subst = 1; |
2571 | |
2572 | peek = d_peek_char (di); |
2573 | switch (peek) |
2574 | { |
2575 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': |
2576 | case 'h': case 'i': case 'j': case 'l': case 'm': case 'n': |
2577 | case 'o': case 's': case 't': |
2578 | case 'v': case 'w': case 'x': case 'y': case 'z': |
2579 | ret = d_make_builtin_type (di, |
2580 | type: &cplus_demangle_builtin_types[peek - 'a']); |
2581 | di->expansion += ret->u.s_builtin.type->len; |
2582 | can_subst = 0; |
2583 | d_advance (di, 1); |
2584 | break; |
2585 | |
2586 | case 'u': |
2587 | d_advance (di, 1); |
2588 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_VENDOR_TYPE, |
2589 | left: d_source_name (di), NULL); |
2590 | break; |
2591 | |
2592 | case 'F': |
2593 | ret = d_function_type (di); |
2594 | break; |
2595 | |
2596 | case 'A': |
2597 | ret = d_array_type (di); |
2598 | break; |
2599 | |
2600 | case 'M': |
2601 | ret = d_pointer_to_member_type (di); |
2602 | break; |
2603 | |
2604 | case 'T': |
2605 | ret = d_template_param (di); |
2606 | if (d_peek_char (di) == 'I') |
2607 | { |
2608 | /* This may be <template-template-param> <template-args>. |
2609 | If this is the type for a conversion operator, we can |
2610 | have a <template-template-param> here only by following |
2611 | a derivation like this: |
2612 | |
2613 | <nested-name> |
2614 | -> <template-prefix> <template-args> |
2615 | -> <prefix> <template-unqualified-name> <template-args> |
2616 | -> <unqualified-name> <template-unqualified-name> <template-args> |
2617 | -> <source-name> <template-unqualified-name> <template-args> |
2618 | -> <source-name> <operator-name> <template-args> |
2619 | -> <source-name> cv <type> <template-args> |
2620 | -> <source-name> cv <template-template-param> <template-args> <template-args> |
2621 | |
2622 | where the <template-args> is followed by another. |
2623 | Otherwise, we must have a derivation like this: |
2624 | |
2625 | <nested-name> |
2626 | -> <template-prefix> <template-args> |
2627 | -> <prefix> <template-unqualified-name> <template-args> |
2628 | -> <unqualified-name> <template-unqualified-name> <template-args> |
2629 | -> <source-name> <template-unqualified-name> <template-args> |
2630 | -> <source-name> <operator-name> <template-args> |
2631 | -> <source-name> cv <type> <template-args> |
2632 | -> <source-name> cv <template-param> <template-args> |
2633 | |
2634 | where we need to leave the <template-args> to be processed |
2635 | by d_prefix (following the <template-prefix>). |
2636 | |
2637 | The <template-template-param> part is a substitution |
2638 | candidate. */ |
2639 | if (! di->is_conversion) |
2640 | { |
2641 | if (! d_add_substitution (di, ret)) |
2642 | return NULL; |
2643 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, left: ret, |
2644 | right: d_template_args (di)); |
2645 | } |
2646 | else |
2647 | { |
2648 | struct demangle_component *args; |
2649 | struct d_info_checkpoint checkpoint; |
2650 | |
2651 | d_checkpoint (di, &checkpoint); |
2652 | args = d_template_args (di); |
2653 | if (d_peek_char (di) == 'I') |
2654 | { |
2655 | if (! d_add_substitution (di, ret)) |
2656 | return NULL; |
2657 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, left: ret, |
2658 | right: args); |
2659 | } |
2660 | else |
2661 | d_backtrack (di, &checkpoint); |
2662 | } |
2663 | } |
2664 | break; |
2665 | |
2666 | case 'O': |
2667 | d_advance (di, 1); |
2668 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_RVALUE_REFERENCE, |
2669 | left: cplus_demangle_type (di), NULL); |
2670 | break; |
2671 | |
2672 | case 'P': |
2673 | d_advance (di, 1); |
2674 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_POINTER, |
2675 | left: cplus_demangle_type (di), NULL); |
2676 | break; |
2677 | |
2678 | case 'R': |
2679 | d_advance (di, 1); |
2680 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_REFERENCE, |
2681 | left: cplus_demangle_type (di), NULL); |
2682 | break; |
2683 | |
2684 | case 'C': |
2685 | d_advance (di, 1); |
2686 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_COMPLEX, |
2687 | left: cplus_demangle_type (di), NULL); |
2688 | break; |
2689 | |
2690 | case 'G': |
2691 | d_advance (di, 1); |
2692 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_IMAGINARY, |
2693 | left: cplus_demangle_type (di), NULL); |
2694 | break; |
2695 | |
2696 | case 'U': |
2697 | d_advance (di, 1); |
2698 | ret = d_source_name (di); |
2699 | if (d_peek_char (di) == 'I') |
2700 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, left: ret, |
2701 | right: d_template_args (di)); |
2702 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL, |
2703 | left: cplus_demangle_type (di), right: ret); |
2704 | break; |
2705 | |
2706 | case 'D': |
2707 | can_subst = 0; |
2708 | d_advance (di, 1); |
2709 | peek = d_next_char (di); |
2710 | switch (peek) |
2711 | { |
2712 | case 'T': |
2713 | case 't': |
2714 | /* decltype (expression) */ |
2715 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_DECLTYPE, |
2716 | left: d_expression (di), NULL); |
2717 | if (ret && d_next_char (di) != 'E') |
2718 | ret = NULL; |
2719 | can_subst = 1; |
2720 | break; |
2721 | |
2722 | case 'p': |
2723 | /* Pack expansion. */ |
2724 | ret = d_make_comp (di, type: DEMANGLE_COMPONENT_PACK_EXPANSION, |
2725 | left: cplus_demangle_type (di), NULL); |
2726 | can_subst = 1; |
2727 | break; |
2728 | |
2729 | case 'a': |
2730 | /* auto */ |
2731 | ret = d_make_name (di, s: "auto" , len: 4); |
2732 | break; |
2733 | case 'c': |
2734 | /* decltype(auto) */ |
2735 | ret = d_make_name (di, s: "decltype(auto)" , len: 14); |
2736 | break; |
2737 | |
2738 | case 'f': |
2739 | /* 32-bit decimal floating point */ |
2740 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[26]); |
2741 | di->expansion += ret->u.s_builtin.type->len; |
2742 | break; |
2743 | case 'd': |
2744 | /* 64-bit DFP */ |
2745 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[27]); |
2746 | di->expansion += ret->u.s_builtin.type->len; |
2747 | break; |
2748 | case 'e': |
2749 | /* 128-bit DFP */ |
2750 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[28]); |
2751 | di->expansion += ret->u.s_builtin.type->len; |
2752 | break; |
2753 | case 'h': |
2754 | /* 16-bit half-precision FP */ |
2755 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[29]); |
2756 | di->expansion += ret->u.s_builtin.type->len; |
2757 | break; |
2758 | case 'u': |
2759 | /* char8_t */ |
2760 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[30]); |
2761 | di->expansion += ret->u.s_builtin.type->len; |
2762 | break; |
2763 | case 's': |
2764 | /* char16_t */ |
2765 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[31]); |
2766 | di->expansion += ret->u.s_builtin.type->len; |
2767 | break; |
2768 | case 'i': |
2769 | /* char32_t */ |
2770 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[32]); |
2771 | di->expansion += ret->u.s_builtin.type->len; |
2772 | break; |
2773 | |
2774 | case 'F': |
2775 | /* DF<number>_ - _Float<number>. |
2776 | DF<number>x - _Float<number>x |
2777 | DF16b - std::bfloat16_t. */ |
2778 | { |
2779 | int arg = d_number (di); |
2780 | char buf[12]; |
2781 | char suffix = 0; |
2782 | if (d_peek_char (di) == 'b') |
2783 | { |
2784 | if (arg != 16) |
2785 | return NULL; |
2786 | d_advance (di, 1); |
2787 | ret = d_make_builtin_type (di, |
2788 | type: &cplus_demangle_builtin_types[35]); |
2789 | di->expansion += ret->u.s_builtin.type->len; |
2790 | break; |
2791 | } |
2792 | if (d_peek_char (di) == 'x') |
2793 | suffix = 'x'; |
2794 | if (!suffix && d_peek_char (di) != '_') |
2795 | return NULL; |
2796 | ret |
2797 | = d_make_extended_builtin_type (di, |
2798 | type: &cplus_demangle_builtin_types[34], |
2799 | arg, suffix); |
2800 | d_advance (di, 1); |
2801 | sprintf (s: buf, format: "%d" , arg); |
2802 | di->expansion += ret->u.s_extended_builtin.type->len |
2803 | + strlen (s: buf) + (suffix != 0); |
2804 | break; |
2805 | } |
2806 | |
2807 | case 'v': |
2808 | ret = d_vector_type (di); |
2809 | can_subst = 1; |
2810 | break; |
2811 | |
2812 | case 'n': |
2813 | /* decltype(nullptr) */ |
2814 | ret = d_make_builtin_type (di, type: &cplus_demangle_builtin_types[33]); |
2815 | di->expansion += ret->u.s_builtin.type->len; |
2816 | break; |
2817 | |
2818 | default: |
2819 | return NULL; |
2820 | } |
2821 | break; |
2822 | |
2823 | default: |
2824 | return d_class_enum_type (di, 1); |
2825 | } |
2826 | |
2827 | if (can_subst) |
2828 | { |
2829 | if (! d_add_substitution (di, ret)) |
2830 | return NULL; |
2831 | } |
2832 | |
2833 | return ret; |
2834 | } |
2835 | |
2836 | /* <CV-qualifiers> ::= [r] [V] [K] [Dx] */ |
2837 | |
2838 | static struct demangle_component ** |
2839 | d_cv_qualifiers (struct d_info *di, |
2840 | struct demangle_component **pret, int member_fn) |
2841 | { |
2842 | struct demangle_component **pstart; |
2843 | char peek; |
2844 | |
2845 | pstart = pret; |
2846 | peek = d_peek_char (di); |
2847 | while (next_is_type_qual (di)) |
2848 | { |
2849 | enum demangle_component_type t; |
2850 | struct demangle_component *right = NULL; |
2851 | |
2852 | d_advance (di, 1); |
2853 | if (peek == 'r') |
2854 | { |
2855 | t = (member_fn |
2856 | ? DEMANGLE_COMPONENT_RESTRICT_THIS |
2857 | : DEMANGLE_COMPONENT_RESTRICT); |
2858 | di->expansion += sizeof "restrict" ; |
2859 | } |
2860 | else if (peek == 'V') |
2861 | { |
2862 | t = (member_fn |
2863 | ? DEMANGLE_COMPONENT_VOLATILE_THIS |
2864 | : DEMANGLE_COMPONENT_VOLATILE); |
2865 | di->expansion += sizeof "volatile" ; |
2866 | } |
2867 | else if (peek == 'K') |
2868 | { |
2869 | t = (member_fn |
2870 | ? DEMANGLE_COMPONENT_CONST_THIS |
2871 | : DEMANGLE_COMPONENT_CONST); |
2872 | di->expansion += sizeof "const" ; |
2873 | } |
2874 | else |
2875 | { |
2876 | peek = d_next_char (di); |
2877 | if (peek == 'x') |
2878 | { |
2879 | t = DEMANGLE_COMPONENT_TRANSACTION_SAFE; |
2880 | di->expansion += sizeof "transaction_safe" ; |
2881 | } |
2882 | else if (peek == 'o' |
2883 | || peek == 'O') |
2884 | { |
2885 | t = DEMANGLE_COMPONENT_NOEXCEPT; |
2886 | di->expansion += sizeof "noexcept" ; |
2887 | if (peek == 'O') |
2888 | { |
2889 | right = d_expression (di); |
2890 | if (right == NULL) |
2891 | return NULL; |
2892 | if (! d_check_char (di, 'E')) |
2893 | return NULL; |
2894 | } |
2895 | } |
2896 | else if (peek == 'w') |
2897 | { |
2898 | t = DEMANGLE_COMPONENT_THROW_SPEC; |
2899 | di->expansion += sizeof "throw" ; |
2900 | right = d_parmlist (di); |
2901 | if (right == NULL) |
2902 | return NULL; |
2903 | if (! d_check_char (di, 'E')) |
2904 | return NULL; |
2905 | } |
2906 | else |
2907 | return NULL; |
2908 | } |
2909 | |
2910 | *pret = d_make_comp (di, type: t, NULL, right); |
2911 | if (*pret == NULL) |
2912 | return NULL; |
2913 | pret = &d_left (*pret); |
2914 | |
2915 | peek = d_peek_char (di); |
2916 | } |
2917 | |
2918 | if (!member_fn && peek == 'F') |
2919 | { |
2920 | while (pstart != pret) |
2921 | { |
2922 | switch ((*pstart)->type) |
2923 | { |
2924 | case DEMANGLE_COMPONENT_RESTRICT: |
2925 | (*pstart)->type = DEMANGLE_COMPONENT_RESTRICT_THIS; |
2926 | break; |
2927 | case DEMANGLE_COMPONENT_VOLATILE: |
2928 | (*pstart)->type = DEMANGLE_COMPONENT_VOLATILE_THIS; |
2929 | break; |
2930 | case DEMANGLE_COMPONENT_CONST: |
2931 | (*pstart)->type = DEMANGLE_COMPONENT_CONST_THIS; |
2932 | break; |
2933 | default: |
2934 | break; |
2935 | } |
2936 | pstart = &d_left (*pstart); |
2937 | } |
2938 | } |
2939 | |
2940 | return pret; |
2941 | } |
2942 | |
2943 | /* <ref-qualifier> ::= R |
2944 | ::= O */ |
2945 | |
2946 | static struct demangle_component * |
2947 | d_ref_qualifier (struct d_info *di, struct demangle_component *sub) |
2948 | { |
2949 | struct demangle_component *ret = sub; |
2950 | char peek; |
2951 | |
2952 | peek = d_peek_char (di); |
2953 | if (peek == 'R' || peek == 'O') |
2954 | { |
2955 | enum demangle_component_type t; |
2956 | if (peek == 'R') |
2957 | { |
2958 | t = DEMANGLE_COMPONENT_REFERENCE_THIS; |
2959 | di->expansion += sizeof "&" ; |
2960 | } |
2961 | else |
2962 | { |
2963 | t = DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS; |
2964 | di->expansion += sizeof "&&" ; |
2965 | } |
2966 | d_advance (di, 1); |
2967 | |
2968 | ret = d_make_comp (di, type: t, left: ret, NULL); |
2969 | } |
2970 | |
2971 | return ret; |
2972 | } |
2973 | |
2974 | /* <function-type> ::= F [Y] <bare-function-type> [<ref-qualifier>] [T] E */ |
2975 | |
2976 | static struct demangle_component * |
2977 | d_function_type (struct d_info *di) |
2978 | { |
2979 | struct demangle_component *ret = NULL; |
2980 | |
2981 | if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0) |
2982 | { |
2983 | if (di->recursion_level > DEMANGLE_RECURSION_LIMIT) |
2984 | /* FIXME: There ought to be a way to report |
2985 | that the recursion limit has been reached. */ |
2986 | return NULL; |
2987 | |
2988 | di->recursion_level ++; |
2989 | } |
2990 | |
2991 | if (d_check_char (di, 'F')) |
2992 | { |
2993 | if (d_peek_char (di) == 'Y') |
2994 | { |
2995 | /* Function has C linkage. We don't print this information. |
2996 | FIXME: We should print it in verbose mode. */ |
2997 | d_advance (di, 1); |
2998 | } |
2999 | ret = d_bare_function_type (di, 1); |
3000 | ret = d_ref_qualifier (di, sub: ret); |
3001 | |
3002 | if (! d_check_char (di, 'E')) |
3003 | ret = NULL; |
3004 | } |
3005 | |
3006 | if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0) |
3007 | di->recursion_level --; |
3008 | return ret; |
3009 | } |
3010 | |
3011 | /* <type>+ */ |
3012 | |
3013 | static struct demangle_component * |
3014 | d_parmlist (struct d_info *di) |
3015 | { |
3016 | struct demangle_component *tl; |
3017 | struct demangle_component **ptl; |
3018 | |
3019 | tl = NULL; |
3020 | ptl = &tl; |
3021 | while (1) |
3022 | { |
3023 | struct demangle_component *type; |
3024 | |
3025 | char peek = d_peek_char (di); |
3026 | if (peek == '\0' || peek == 'E' || peek == '.') |
3027 | break; |
3028 | if ((peek == 'R' || peek == 'O') |
3029 | && d_peek_next_char (di) == 'E') |
3030 | /* Function ref-qualifier, not a ref prefix for a parameter type. */ |
3031 | break; |
3032 | type = cplus_demangle_type (di); |
3033 | if (type == NULL) |
3034 | return NULL; |
3035 | *ptl = d_make_comp (di, type: DEMANGLE_COMPONENT_ARGLIST, left: type, NULL); |
3036 | if (*ptl == NULL) |
3037 | return NULL; |
3038 | ptl = &d_right (*ptl); |
3039 | } |
3040 | |
3041 | /* There should be at least one parameter type besides the optional |
3042 | return type. A function which takes no arguments will have a |
3043 | single parameter type void. */ |
3044 | if (tl == NULL) |
3045 | return NULL; |
3046 | |
3047 | /* If we have a single parameter type void, omit it. */ |
3048 | if (d_right (tl) == NULL |
3049 | && d_left (tl)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE |
3050 | && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID) |
3051 | { |
3052 | di->expansion -= d_left (tl)->u.s_builtin.type->len; |
3053 | d_left (tl) = NULL; |
3054 | } |
3055 | |
3056 | return tl; |
3057 | } |
3058 | |
3059 | /* <bare-function-type> ::= [J]<type>+ */ |
3060 | |
3061 | static struct demangle_component * |
3062 | d_bare_function_type (struct d_info *di, int has_return_type) |
3063 | { |
3064 | struct demangle_component *return_type; |
3065 | struct demangle_component *tl; |
3066 | char peek; |
3067 | |
3068 | /* Detect special qualifier indicating that the first argument |
3069 | is the return type. */ |
3070 | peek = d_peek_char (di); |
3071 | if (peek == 'J') |
3072 | { |
3073 | d_advance (di, 1); |
3074 | has_return_type = 1; |
3075 | } |
3076 | |
3077 | if (has_return_type) |
3078 | { |
3079 | return_type = cplus_demangle_type (di); |
3080 | if (return_type == NULL) |
3081 | return NULL; |
3082 | } |
3083 | else |
3084 | return_type = NULL; |
3085 | |
3086 | tl = d_parmlist (di); |
3087 | if (tl == NULL) |
3088 | return NULL; |
3089 | |
3090 | return d_make_comp (di, type: DEMANGLE_COMPONENT_FUNCTION_TYPE, |
3091 | left: return_type, right: tl); |
3092 | } |
3093 | |
3094 | /* <class-enum-type> ::= <name> */ |
3095 | |
3096 | static struct demangle_component * |
3097 | d_class_enum_type (struct d_info *di, int substable) |
3098 | { |
3099 | return d_name (di, substable); |
3100 | } |
3101 | |
3102 | /* <array-type> ::= A <(positive dimension) number> _ <(element) type> |
3103 | ::= A [<(dimension) expression>] _ <(element) type> |
3104 | */ |
3105 | |
3106 | static struct demangle_component * |
3107 | d_array_type (struct d_info *di) |
3108 | { |
3109 | char peek; |
3110 | struct demangle_component *dim; |
3111 | |
3112 | if (! d_check_char (di, 'A')) |
3113 | return NULL; |
3114 | |
3115 | peek = d_peek_char (di); |
3116 | if (peek == '_') |
3117 | dim = NULL; |
3118 | else if (IS_DIGIT (peek)) |
3119 | { |
3120 | const char *s; |
3121 | |
3122 | s = d_str (di); |
3123 | do |
3124 | { |
3125 | d_advance (di, 1); |
3126 | peek = d_peek_char (di); |
3127 | } |
3128 | while (IS_DIGIT (peek)); |
3129 | dim = d_make_name (di, s, d_str (di) - s); |
3130 | if (dim == NULL) |
3131 | return NULL; |
3132 | } |
3133 | else |
3134 | { |
3135 | dim = d_expression (di); |
3136 | if (dim == NULL) |
3137 | return NULL; |
3138 | } |
3139 | |
3140 | if (! d_check_char (di, '_')) |
3141 | return NULL; |
3142 | |
3143 | return d_make_comp (di, type: DEMANGLE_COMPONENT_ARRAY_TYPE, left: dim, |
3144 | right: cplus_demangle_type (di)); |
3145 | } |
3146 | |
3147 | /* <vector-type> ::= Dv <number> _ <type> |
3148 | ::= Dv _ <expression> _ <type> */ |
3149 | |
3150 | static struct demangle_component * |
3151 | d_vector_type (struct d_info *di) |
3152 | { |
3153 | char peek; |
3154 | struct demangle_component *dim; |
3155 | |
3156 | peek = d_peek_char (di); |
3157 | if (peek == '_') |
3158 | { |
3159 | d_advance (di, 1); |
3160 | dim = d_expression (di); |
3161 | } |
3162 | else |
3163 | dim = d_number_component (di); |
3164 | |
3165 | if (dim == NULL) |
3166 | return NULL; |
3167 | |
3168 | if (! d_check_char (di, '_')) |
3169 | return NULL; |
3170 | |
3171 | return d_make_comp (di, type: DEMANGLE_COMPONENT_VECTOR_TYPE, left: dim, |
3172 | right: cplus_demangle_type (di)); |
3173 | } |
3174 | |
3175 | /* <pointer-to-member-type> ::= M <(class) type> <(member) type> */ |
3176 | |
3177 | static struct demangle_component * |
3178 | d_pointer_to_member_type (struct d_info *di) |
3179 | { |
3180 | struct demangle_component *cl; |
3181 | struct demangle_component *mem; |
3182 | |
3183 | if (! d_check_char (di, 'M')) |
3184 | return NULL; |
3185 | |
3186 | cl = cplus_demangle_type (di); |
3187 | if (cl == NULL) |
3188 | return NULL; |
3189 | |
3190 | /* The ABI says, "The type of a non-static member function is considered |
3191 | to be different, for the purposes of substitution, from the type of a |
3192 | namespace-scope or static member function whose type appears |
3193 | similar. The types of two non-static member functions are considered |
3194 | to be different, for the purposes of substitution, if the functions |
3195 | are members of different classes. In other words, for the purposes of |
3196 | substitution, the class of which the function is a member is |
3197 | considered part of the type of function." |
3198 | |
3199 | For a pointer to member function, this call to cplus_demangle_type |
3200 | will end up adding a (possibly qualified) non-member function type to |
3201 | the substitution table, which is not correct; however, the member |
3202 | function type will never be used in a substitution, so putting the |
3203 | wrong type in the substitution table is harmless. */ |
3204 | |
3205 | mem = cplus_demangle_type (di); |
3206 | if (mem == NULL) |
3207 | return NULL; |
3208 | |
3209 | return d_make_comp (di, type: DEMANGLE_COMPONENT_PTRMEM_TYPE, left: cl, right: mem); |
3210 | } |
3211 | |
3212 | /* <non-negative number> _ */ |
3213 | |
3214 | static int |
3215 | d_compact_number (struct d_info *di) |
3216 | { |
3217 | int num; |
3218 | if (d_peek_char (di) == '_') |
3219 | num = 0; |
3220 | else if (d_peek_char (di) == 'n') |
3221 | return -1; |
3222 | else |
3223 | num = d_number (di) + 1; |
3224 | |
3225 | if (num < 0 || ! d_check_char (di, '_')) |
3226 | return -1; |
3227 | return num; |
3228 | } |
3229 | |
3230 | /* <template-param> ::= T_ |
3231 | ::= T <(parameter-2 non-negative) number> _ |
3232 | */ |
3233 | |
3234 | static struct demangle_component * |
3235 | d_template_param (struct d_info *di) |
3236 | { |
3237 | int param; |
3238 | |
3239 | if (! d_check_char (di, 'T')) |
3240 | return NULL; |
3241 | |
3242 | param = d_compact_number (di); |
3243 | if (param < 0) |
3244 | return NULL; |
3245 | |
3246 | return d_make_template_param (di, i: param); |
3247 | } |
3248 | |
3249 | /* <template-args> ::= I <template-arg>+ E */ |
3250 | |
3251 | static struct demangle_component * |
3252 | d_template_args (struct d_info *di) |
3253 | { |
3254 | if (d_peek_char (di) != 'I' |
3255 | && d_peek_char (di) != 'J') |
3256 | return NULL; |
3257 | d_advance (di, 1); |
3258 | |
3259 | return d_template_args_1 (di); |
3260 | } |
3261 | |
3262 | /* <template-arg>* E */ |
3263 | |
3264 | static struct demangle_component * |
3265 | d_template_args_1 (struct d_info *di) |
3266 | { |
3267 | struct demangle_component *hold_last_name; |
3268 | struct demangle_component *al; |
3269 | struct demangle_component **pal; |
3270 | |
3271 | /* Preserve the last name we saw--don't let the template arguments |
3272 | clobber it, as that would give us the wrong name for a subsequent |
3273 | constructor or destructor. */ |
3274 | hold_last_name = di->last_name; |
3275 | |
3276 | if (d_peek_char (di) == 'E') |
3277 | { |
3278 | /* An argument pack can be empty. */ |
3279 | d_advance (di, 1); |
3280 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL); |
3281 | } |
3282 | |
3283 | al = NULL; |
3284 | pal = &al; |
3285 | while (1) |
3286 | { |
3287 | struct demangle_component *a; |
3288 | |
3289 | a = d_template_arg (di); |
3290 | if (a == NULL) |
3291 | return NULL; |
3292 | |
3293 | *pal = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, left: a, NULL); |
3294 | if (*pal == NULL) |
3295 | return NULL; |
3296 | pal = &d_right (*pal); |
3297 | |
3298 | if (d_peek_char (di) == 'E') |
3299 | { |
3300 | d_advance (di, 1); |
3301 | break; |
3302 | } |
3303 | } |
3304 | |
3305 | di->last_name = hold_last_name; |
3306 | |
3307 | return al; |
3308 | } |
3309 | |
3310 | /* <template-arg> ::= <type> |
3311 | ::= X <expression> E |
3312 | ::= <expr-primary> |
3313 | */ |
3314 | |
3315 | static struct demangle_component * |
3316 | d_template_arg (struct d_info *di) |
3317 | { |
3318 | struct demangle_component *ret; |
3319 | |
3320 | switch (d_peek_char (di)) |
3321 | { |
3322 | case 'X': |
3323 | d_advance (di, 1); |
3324 | ret = d_expression (di); |
3325 | if (! d_check_char (di, 'E')) |
3326 | return NULL; |
3327 | return ret; |
3328 | |
3329 | case 'L': |
3330 | return d_expr_primary (di); |
3331 | |
3332 | case 'I': |
3333 | case 'J': |
3334 | /* An argument pack. */ |
3335 | return d_template_args (di); |
3336 | |
3337 | default: |
3338 | return cplus_demangle_type (di); |
3339 | } |
3340 | } |
3341 | |
3342 | /* Parse a sequence of expressions until we hit the terminator |
3343 | character. */ |
3344 | |
3345 | static struct demangle_component * |
3346 | d_exprlist (struct d_info *di, char terminator) |
3347 | { |
3348 | struct demangle_component *list = NULL; |
3349 | struct demangle_component **p = &list; |
3350 | |
3351 | if (d_peek_char (di) == terminator) |
3352 | { |
3353 | d_advance (di, 1); |
3354 | return d_make_comp (di, type: DEMANGLE_COMPONENT_ARGLIST, NULL, NULL); |
3355 | } |
3356 | |
3357 | while (1) |
3358 | { |
3359 | struct demangle_component *arg = d_expression (di); |
3360 | if (arg == NULL) |
3361 | return NULL; |
3362 | |
3363 | *p = d_make_comp (di, type: DEMANGLE_COMPONENT_ARGLIST, left: arg, NULL); |
3364 | if (*p == NULL) |
3365 | return NULL; |
3366 | p = &d_right (*p); |
3367 | |
3368 | if (d_peek_char (di) == terminator) |
3369 | { |
3370 | d_advance (di, 1); |
3371 | break; |
3372 | } |
3373 | } |
3374 | |
3375 | return list; |
3376 | } |
3377 | |
3378 | /* Returns nonzero iff OP is an operator for a C++ cast: const_cast, |
3379 | dynamic_cast, static_cast or reinterpret_cast. */ |
3380 | |
3381 | static int |
3382 | op_is_new_cast (struct demangle_component *op) |
3383 | { |
3384 | const char *code = op->u.s_operator.op->code; |
3385 | return (code[1] == 'c' |
3386 | && (code[0] == 's' || code[0] == 'd' |
3387 | || code[0] == 'c' || code[0] == 'r')); |
3388 | } |
3389 | |
3390 | /* <unresolved-name> ::= [gs] <base-unresolved-name> # x or (with "gs") ::x |
3391 | ::= sr <unresolved-type> <base-unresolved-name> # T::x / decltype(p)::x |
3392 | # T::N::x /decltype(p)::N::x |
3393 | ::= srN <unresolved-type> <unresolved-qualifier-level>+ E <base-unresolved-name> |
3394 | # A::x, N::y, A<T>::z; "gs" means leading "::" |
3395 | ::= [gs] sr <unresolved-qualifier-level>+ E <base-unresolved-name> |
3396 | |
3397 | "gs" is handled elsewhere, as a unary operator. */ |
3398 | |
3399 | static struct demangle_component * |
3400 | d_unresolved_name (struct d_info *di) |
3401 | { |
3402 | struct demangle_component *type; |
3403 | struct demangle_component *name; |
3404 | char peek; |
3405 | |
3406 | /* Consume the "sr". */ |
3407 | d_advance (di, 2); |
3408 | |
3409 | peek = d_peek_char (di); |
3410 | if (di->unresolved_name_state |
3411 | && (IS_DIGIT (peek) |
3412 | || IS_LOWER (peek) |
3413 | || peek == 'C' |
3414 | || peek == 'U' |
3415 | || peek == 'L')) |
3416 | { |
3417 | /* The third production is ambiguous with the old unresolved-name syntax |
3418 | of <type> <base-unresolved-name>; in the old mangling, A::x was mangled |
3419 | as sr1A1x, now sr1AE1x. So we first try to demangle using the new |
3420 | mangling, then with the old if that fails. */ |
3421 | di->unresolved_name_state = -1; |
3422 | type = d_prefix (di, substable: 0); |
3423 | if (d_peek_char (di) == 'E') |
3424 | d_advance (di, 1); |
3425 | } |
3426 | else |
3427 | type = cplus_demangle_type (di); |
3428 | name = d_unqualified_name (di, scope: type, NULL); |
3429 | if (d_peek_char (di) == 'I') |
3430 | name = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, left: name, |
3431 | right: d_template_args (di)); |
3432 | return name; |
3433 | } |
3434 | |
3435 | /* <expression> ::= <(unary) operator-name> <expression> |
3436 | ::= <(binary) operator-name> <expression> <expression> |
3437 | ::= <(trinary) operator-name> <expression> <expression> <expression> |
3438 | ::= cl <expression>+ E |
3439 | ::= st <type> |
3440 | ::= <template-param> |
3441 | ::= u <source-name> <template-arg>* E # vendor extended expression |
3442 | ::= <unresolved-name> |
3443 | ::= <expr-primary> |
3444 | |
3445 | <braced-expression> ::= <expression> |
3446 | ::= di <field source-name> <braced-expression> # .name = expr |
3447 | ::= dx <index expression> <braced-expression> # [expr] = expr |
3448 | ::= dX <range begin expression> <range end expression> <braced-expression> |
3449 | # [expr ... expr] = expr |
3450 | */ |
3451 | |
3452 | static struct demangle_component * |
3453 | d_expression_1 (struct d_info *di) |
3454 | { |
3455 | char peek; |
3456 | |
3457 | peek = d_peek_char (di); |
3458 | if (peek == 'L') |
3459 | return d_expr_primary (di); |
3460 | else if (peek == 'T') |
3461 | return d_template_param (di); |
3462 | else if (peek == 's' && d_peek_next_char (di) == 'r') |
3463 | return d_unresolved_name (di); |
3464 | else if (peek == 's' && d_peek_next_char (di) == 'p') |
3465 | { |
3466 | d_advance (di, 2); |
3467 | return d_make_comp (di, type: DEMANGLE_COMPONENT_PACK_EXPANSION, |
3468 | left: d_expression_1 (di), NULL); |
3469 | } |
3470 | else if (peek == 'f' && d_peek_next_char (di) == 'p') |
3471 | { |
3472 | /* Function parameter used in a late-specified return type. */ |
3473 | int index; |
3474 | d_advance (di, 2); |
3475 | if (d_peek_char (di) == 'T') |
3476 | { |
3477 | /* 'this' parameter. */ |
3478 | d_advance (di, 1); |
3479 | index = 0; |
3480 | } |
3481 | else |
3482 | { |
3483 | index = d_compact_number (di); |
3484 | if (index == INT_MAX || index == -1) |
3485 | return NULL; |
3486 | index++; |
3487 | } |
3488 | return d_make_function_param (di, i: index); |
3489 | } |
3490 | else if (IS_DIGIT (peek) |
3491 | || (peek == 'o' && d_peek_next_char (di) == 'n')) |
3492 | { |
3493 | /* We can get an unqualified name as an expression in the case of |
3494 | a dependent function call, i.e. decltype(f(t)). */ |
3495 | struct demangle_component *name; |
3496 | |
3497 | if (peek == 'o') |
3498 | /* operator-function-id, i.e. operator+(t). */ |
3499 | d_advance (di, 2); |
3500 | |
3501 | name = d_unqualified_name (di, NULL, NULL); |
3502 | if (name == NULL) |
3503 | return NULL; |
3504 | if (d_peek_char (di) == 'I') |
3505 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, left: name, |
3506 | right: d_template_args (di)); |
3507 | else |
3508 | return name; |
3509 | } |
3510 | else if ((peek == 'i' || peek == 't') |
3511 | && d_peek_next_char (di) == 'l') |
3512 | { |
3513 | /* Brace-enclosed initializer list, untyped or typed. */ |
3514 | struct demangle_component *type = NULL; |
3515 | d_advance (di, 2); |
3516 | if (peek == 't') |
3517 | type = cplus_demangle_type (di); |
3518 | if (!d_peek_char (di) || !d_peek_next_char (di)) |
3519 | return NULL; |
3520 | return d_make_comp (di, type: DEMANGLE_COMPONENT_INITIALIZER_LIST, |
3521 | left: type, right: d_exprlist (di, terminator: 'E')); |
3522 | } |
3523 | else if (peek == 'u') |
3524 | { |
3525 | /* A vendor extended expression. */ |
3526 | struct demangle_component *name, *args; |
3527 | d_advance (di, 1); |
3528 | name = d_source_name (di); |
3529 | args = d_template_args_1 (di); |
3530 | return d_make_comp (di, type: DEMANGLE_COMPONENT_VENDOR_EXPR, left: name, right: args); |
3531 | } |
3532 | else |
3533 | { |
3534 | struct demangle_component *op; |
3535 | const char *code = NULL; |
3536 | int args; |
3537 | |
3538 | op = d_operator_name (di); |
3539 | if (op == NULL) |
3540 | return NULL; |
3541 | |
3542 | if (op->type == DEMANGLE_COMPONENT_OPERATOR) |
3543 | { |
3544 | code = op->u.s_operator.op->code; |
3545 | di->expansion += op->u.s_operator.op->len - 2; |
3546 | if (strcmp (s1: code, s2: "st" ) == 0) |
3547 | return d_make_comp (di, type: DEMANGLE_COMPONENT_UNARY, left: op, |
3548 | right: cplus_demangle_type (di)); |
3549 | } |
3550 | |
3551 | switch (op->type) |
3552 | { |
3553 | default: |
3554 | return NULL; |
3555 | case DEMANGLE_COMPONENT_OPERATOR: |
3556 | args = op->u.s_operator.op->args; |
3557 | break; |
3558 | case DEMANGLE_COMPONENT_EXTENDED_OPERATOR: |
3559 | args = op->u.s_extended_operator.args; |
3560 | break; |
3561 | case DEMANGLE_COMPONENT_CAST: |
3562 | args = 1; |
3563 | break; |
3564 | } |
3565 | |
3566 | switch (args) |
3567 | { |
3568 | case 0: |
3569 | return d_make_comp (di, type: DEMANGLE_COMPONENT_NULLARY, left: op, NULL); |
3570 | |
3571 | case 1: |
3572 | { |
3573 | struct demangle_component *operand; |
3574 | int suffix = 0; |
3575 | |
3576 | if (code && (code[0] == 'p' || code[0] == 'm') |
3577 | && code[1] == code[0]) |
3578 | /* pp_ and mm_ are the prefix variants. */ |
3579 | suffix = !d_check_char (di, '_'); |
3580 | |
3581 | if (op->type == DEMANGLE_COMPONENT_CAST |
3582 | && d_check_char (di, '_')) |
3583 | operand = d_exprlist (di, terminator: 'E'); |
3584 | else if (code && !strcmp (s1: code, s2: "sP" )) |
3585 | operand = d_template_args_1 (di); |
3586 | else |
3587 | operand = d_expression_1 (di); |
3588 | |
3589 | if (suffix) |
3590 | /* Indicate the suffix variant for d_print_comp. */ |
3591 | operand = d_make_comp (di, type: DEMANGLE_COMPONENT_BINARY_ARGS, |
3592 | left: operand, right: operand); |
3593 | |
3594 | return d_make_comp (di, type: DEMANGLE_COMPONENT_UNARY, left: op, right: operand); |
3595 | } |
3596 | case 2: |
3597 | { |
3598 | struct demangle_component *left; |
3599 | struct demangle_component *right; |
3600 | |
3601 | if (code == NULL) |
3602 | return NULL; |
3603 | if (op_is_new_cast (op)) |
3604 | left = cplus_demangle_type (di); |
3605 | else if (code[0] == 'f') |
3606 | /* fold-expression. */ |
3607 | left = d_operator_name (di); |
3608 | else if (!strcmp (s1: code, s2: "di" )) |
3609 | left = d_unqualified_name (di, NULL, NULL); |
3610 | else |
3611 | left = d_expression_1 (di); |
3612 | if (!strcmp (s1: code, s2: "cl" )) |
3613 | right = d_exprlist (di, terminator: 'E'); |
3614 | else if (!strcmp (s1: code, s2: "dt" ) || !strcmp (s1: code, s2: "pt" )) |
3615 | { |
3616 | peek = d_peek_char (di); |
3617 | /* These codes start a qualified name. */ |
3618 | if ((peek == 'g' && d_peek_next_char (di) == 's') |
3619 | || (peek == 's' && d_peek_next_char (di) == 'r')) |
3620 | right = d_expression_1 (di); |
3621 | else |
3622 | { |
3623 | /* Otherwise it's an unqualified name. We use |
3624 | d_unqualified_name rather than d_expression_1 here for |
3625 | old mangled names that didn't add 'on' before operator |
3626 | names. */ |
3627 | right = d_unqualified_name (di, NULL, NULL); |
3628 | if (d_peek_char (di) == 'I') |
3629 | right = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE, |
3630 | left: right, right: d_template_args (di)); |
3631 | } |
3632 | } |
3633 | else |
3634 | right = d_expression_1 (di); |
3635 | |
3636 | return d_make_comp (di, type: DEMANGLE_COMPONENT_BINARY, left: op, |
3637 | right: d_make_comp (di, |
3638 | type: DEMANGLE_COMPONENT_BINARY_ARGS, |
3639 | left, right)); |
3640 | } |
3641 | case 3: |
3642 | { |
3643 | struct demangle_component *first; |
3644 | struct demangle_component *second; |
3645 | struct demangle_component *third; |
3646 | |
3647 | if (code == NULL) |
3648 | return NULL; |
3649 | else if (!strcmp (s1: code, s2: "qu" ) |
3650 | || !strcmp (s1: code, s2: "dX" )) |
3651 | { |
3652 | /* ?: expression. */ |
3653 | first = d_expression_1 (di); |
3654 | second = d_expression_1 (di); |
3655 | third = d_expression_1 (di); |
3656 | if (third == NULL) |
3657 | return NULL; |
3658 | } |
3659 | else if (code[0] == 'f') |
3660 | { |
3661 | /* fold-expression. */ |
3662 | first = d_operator_name (di); |
3663 | second = d_expression_1 (di); |
3664 | third = d_expression_1 (di); |
3665 | if (third == NULL) |
3666 | return NULL; |
3667 | } |
3668 | else if (code[0] == 'n') |
3669 | { |
3670 | /* new-expression. */ |
3671 | if (code[1] != 'w' && code[1] != 'a') |
3672 | return NULL; |
3673 | first = d_exprlist (di, terminator: '_'); |
3674 | second = cplus_demangle_type (di); |
3675 | if (d_peek_char (di) == 'E') |
3676 | { |
3677 | d_advance (di, 1); |
3678 | third = NULL; |
3679 | } |
3680 | else if (d_peek_char (di) == 'p' |
3681 | && d_peek_next_char (di) == 'i') |
3682 | { |
3683 | /* Parenthesized initializer. */ |
3684 | d_advance (di, 2); |
3685 | third = d_exprlist (di, terminator: 'E'); |
3686 | } |
3687 | else if (d_peek_char (di) == 'i' |
3688 | && d_peek_next_char (di) == 'l') |
3689 | /* initializer-list. */ |
3690 | third = d_expression_1 (di); |
3691 | else |
3692 | return NULL; |
3693 | } |
3694 | else |
3695 | return NULL; |
3696 | return d_make_comp (di, type: DEMANGLE_COMPONENT_TRINARY, left: op, |
3697 | right: d_make_comp (di, |
3698 | type: DEMANGLE_COMPONENT_TRINARY_ARG1, |
3699 | left: first, |
3700 | right: d_make_comp (di, |
3701 | type: DEMANGLE_COMPONENT_TRINARY_ARG2, |
3702 | left: second, right: third))); |
3703 | } |
3704 | default: |
3705 | return NULL; |
3706 | } |
3707 | } |
3708 | } |
3709 | |
3710 | static struct demangle_component * |
3711 | d_expression (struct d_info *di) |
3712 | { |
3713 | struct demangle_component *ret; |
3714 | int was_expression = di->is_expression; |
3715 | |
3716 | di->is_expression = 1; |
3717 | ret = d_expression_1 (di); |
3718 | di->is_expression = was_expression; |
3719 | return ret; |
3720 | } |
3721 | |
3722 | /* <expr-primary> ::= L <type> <(value) number> E |
3723 | ::= L <type> <(value) float> E |
3724 | ::= L <mangled-name> E |
3725 | */ |
3726 | |
3727 | static struct demangle_component * |
3728 | d_expr_primary (struct d_info *di) |
3729 | { |
3730 | struct demangle_component *ret; |
3731 | |
3732 | if (! d_check_char (di, 'L')) |
3733 | return NULL; |
3734 | if (d_peek_char (di) == '_' |
3735 | /* Workaround for G++ bug; see comment in write_template_arg. */ |
3736 | || d_peek_char (di) == 'Z') |
3737 | ret = cplus_demangle_mangled_name (di, top_level: 0); |
3738 | else |
3739 | { |
3740 | struct demangle_component *type; |
3741 | enum demangle_component_type t; |
3742 | const char *s; |
3743 | |
3744 | type = cplus_demangle_type (di); |
3745 | if (type == NULL) |
3746 | return NULL; |
3747 | |
3748 | /* If we have a type we know how to print, we aren't going to |
3749 | print the type name itself. */ |
3750 | if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE |
3751 | && type->u.s_builtin.type->print != D_PRINT_DEFAULT) |
3752 | di->expansion -= type->u.s_builtin.type->len; |
3753 | |
3754 | if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE |
3755 | && strcmp (s1: type->u.s_builtin.type->name, |
3756 | s2: cplus_demangle_builtin_types[33].name) == 0) |
3757 | { |
3758 | if (d_peek_char (di) == 'E') |
3759 | { |
3760 | d_advance (di, 1); |
3761 | return type; |
3762 | } |
3763 | } |
3764 | |
3765 | /* Rather than try to interpret the literal value, we just |
3766 | collect it as a string. Note that it's possible to have a |
3767 | floating point literal here. The ABI specifies that the |
3768 | format of such literals is machine independent. That's fine, |
3769 | but what's not fine is that versions of g++ up to 3.2 with |
3770 | -fabi-version=1 used upper case letters in the hex constant, |
3771 | and dumped out gcc's internal representation. That makes it |
3772 | hard to tell where the constant ends, and hard to dump the |
3773 | constant in any readable form anyhow. We don't attempt to |
3774 | handle these cases. */ |
3775 | |
3776 | t = DEMANGLE_COMPONENT_LITERAL; |
3777 | if (d_peek_char (di) == 'n') |
3778 | { |
3779 | t = DEMANGLE_COMPONENT_LITERAL_NEG; |
3780 | d_advance (di, 1); |
3781 | } |
3782 | s = d_str (di); |
3783 | while (d_peek_char (di) != 'E') |
3784 | { |
3785 | if (d_peek_char (di) == '\0') |
3786 | return NULL; |
3787 | d_advance (di, 1); |
3788 | } |
3789 | ret = d_make_comp (di, type: t, left: type, right: d_make_name (di, s, d_str (di) - s)); |
3790 | } |
3791 | if (! d_check_char (di, 'E')) |
3792 | return NULL; |
3793 | return ret; |
3794 | } |
3795 | |
3796 | /* <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>] |
3797 | ::= Z <(function) encoding> E s [<discriminator>] |
3798 | ::= Z <(function) encoding> E d [<parameter> number>] _ <entity name> |
3799 | */ |
3800 | |
3801 | static struct demangle_component * |
3802 | d_local_name (struct d_info *di) |
3803 | { |
3804 | struct demangle_component *function; |
3805 | struct demangle_component *name; |
3806 | |
3807 | if (! d_check_char (di, 'Z')) |
3808 | return NULL; |
3809 | |
3810 | function = d_encoding (di, top_level: 0); |
3811 | if (!function) |
3812 | return NULL; |
3813 | |
3814 | if (! d_check_char (di, 'E')) |
3815 | return NULL; |
3816 | |
3817 | if (d_peek_char (di) == 's') |
3818 | { |
3819 | d_advance (di, 1); |
3820 | if (! d_discriminator (di)) |
3821 | return NULL; |
3822 | name = d_make_name (di, s: "string literal" , len: sizeof "string literal" - 1); |
3823 | } |
3824 | else |
3825 | { |
3826 | int num = -1; |
3827 | |
3828 | if (d_peek_char (di) == 'd') |
3829 | { |
3830 | /* Default argument scope: d <number> _. */ |
3831 | d_advance (di, 1); |
3832 | num = d_compact_number (di); |
3833 | if (num < 0) |
3834 | return NULL; |
3835 | } |
3836 | |
3837 | name = d_name (di, substable: 0); |
3838 | |
3839 | if (name |
3840 | /* Lambdas and unnamed types have internal discriminators |
3841 | and are not functions. */ |
3842 | && name->type != DEMANGLE_COMPONENT_LAMBDA |
3843 | && name->type != DEMANGLE_COMPONENT_UNNAMED_TYPE) |
3844 | { |
3845 | /* Read and ignore an optional discriminator. */ |
3846 | if (! d_discriminator (di)) |
3847 | return NULL; |
3848 | } |
3849 | |
3850 | if (num >= 0) |
3851 | name = d_make_default_arg (di, num, sub: name); |
3852 | } |
3853 | |
3854 | /* Elide the return type of the containing function so as to not |
3855 | confuse the user thinking it is the return type of whatever local |
3856 | function we might be containing. */ |
3857 | if (function->type == DEMANGLE_COMPONENT_TYPED_NAME |
3858 | && d_right (function)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE) |
3859 | d_left (d_right (function)) = NULL; |
3860 | |
3861 | return d_make_comp (di, type: DEMANGLE_COMPONENT_LOCAL_NAME, left: function, right: name); |
3862 | } |
3863 | |
3864 | /* <discriminator> ::= _ <number> # when number < 10 |
3865 | ::= __ <number> _ # when number >= 10 |
3866 | |
3867 | <discriminator> ::= _ <number> # when number >=10 |
3868 | is also accepted to support gcc versions that wrongly mangled that way. |
3869 | |
3870 | We demangle the discriminator, but we don't print it out. FIXME: |
3871 | We should print it out in verbose mode. */ |
3872 | |
3873 | static int |
3874 | d_discriminator (struct d_info *di) |
3875 | { |
3876 | int discrim, num_underscores = 1; |
3877 | |
3878 | if (d_peek_char (di) != '_') |
3879 | return 1; |
3880 | d_advance (di, 1); |
3881 | if (d_peek_char (di) == '_') |
3882 | { |
3883 | ++num_underscores; |
3884 | d_advance (di, 1); |
3885 | } |
3886 | |
3887 | discrim = d_number (di); |
3888 | if (discrim < 0) |
3889 | return 0; |
3890 | if (num_underscores > 1 && discrim >= 10) |
3891 | { |
3892 | if (d_peek_char (di) == '_') |
3893 | d_advance (di, 1); |
3894 | else |
3895 | return 0; |
3896 | } |
3897 | |
3898 | return 1; |
3899 | } |
3900 | |
3901 | /* <template-parm> ::= Ty |
3902 | ::= Tn <type> |
3903 | ::= Tt <template-head> E |
3904 | ::= Tp <template-parm> */ |
3905 | |
3906 | static struct demangle_component * |
3907 | d_template_parm (struct d_info *di, int *bad) |
3908 | { |
3909 | if (d_peek_char (di) != 'T') |
3910 | return NULL; |
3911 | |
3912 | struct demangle_component *op; |
3913 | enum demangle_component_type kind; |
3914 | switch (d_peek_next_char (di)) |
3915 | { |
3916 | default: |
3917 | return NULL; |
3918 | |
3919 | case 'p': /* Pack */ |
3920 | d_advance (di, 2); |
3921 | op = d_template_parm (di, bad); |
3922 | kind = DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM; |
3923 | if (!op) |
3924 | { |
3925 | *bad = 1; |
3926 | return NULL; |
3927 | } |
3928 | break; |
3929 | |
3930 | case 'y': /* Typename */ |
3931 | d_advance (di, 2); |
3932 | op = NULL; |
3933 | kind = DEMANGLE_COMPONENT_TEMPLATE_TYPE_PARM; |
3934 | break; |
3935 | |
3936 | case 'n': /* Non-Type */ |
3937 | d_advance (di, 2); |
3938 | op = cplus_demangle_type (di); |
3939 | kind = DEMANGLE_COMPONENT_TEMPLATE_NON_TYPE_PARM; |
3940 | if (!op) |
3941 | { |
3942 | *bad = 1; |
3943 | return NULL; |
3944 | } |
3945 | break; |
3946 | |
3947 | case 't': /* Template */ |
3948 | d_advance (di, 2); |
3949 | op = d_template_head (di, bad); |
3950 | kind = DEMANGLE_COMPONENT_TEMPLATE_TEMPLATE_PARM; |
3951 | if (!op || !d_check_char (di, 'E')) |
3952 | { |
3953 | *bad = 1; |
3954 | return NULL; |
3955 | } |
3956 | } |
3957 | |
3958 | return d_make_comp (di, type: kind, left: op, NULL); |
3959 | } |
3960 | |
3961 | /* <template-head> ::= <template-head>? <template-parm> */ |
3962 | |
3963 | static struct demangle_component * |
3964 | d_template_head (struct d_info *di, int *bad) |
3965 | { |
3966 | struct demangle_component *res = NULL, **slot = &res; |
3967 | struct demangle_component *op; |
3968 | |
3969 | while ((op = d_template_parm (di, bad))) |
3970 | { |
3971 | *slot = op; |
3972 | slot = &d_right (op); |
3973 | } |
3974 | |
3975 | /* Wrap it in a template head, to make concatenating with any parm list, and |
3976 | printing simpler. */ |
3977 | if (res) |
3978 | res = d_make_comp (di, type: DEMANGLE_COMPONENT_TEMPLATE_HEAD, left: res, NULL); |
3979 | |
3980 | return res; |
3981 | } |
3982 | |
3983 | /* <closure-type-name> ::= Ul <template-head>? <lambda-sig> E [ <nonnegative number> ] _ */ |
3984 | |
3985 | static struct demangle_component * |
3986 | d_lambda (struct d_info *di) |
3987 | { |
3988 | if (! d_check_char (di, 'U')) |
3989 | return NULL; |
3990 | if (! d_check_char (di, 'l')) |
3991 | return NULL; |
3992 | |
3993 | int bad = 0; |
3994 | struct demangle_component *head = d_template_head (di, bad: &bad); |
3995 | if (bad) |
3996 | return NULL; |
3997 | |
3998 | struct demangle_component *tl = d_parmlist (di); |
3999 | if (tl == NULL) |
4000 | return NULL; |
4001 | if (head) |
4002 | { |
4003 | d_right (head) = tl; |
4004 | tl = head; |
4005 | } |
4006 | |
4007 | if (! d_check_char (di, 'E')) |
4008 | return NULL; |
4009 | |
4010 | int num = d_compact_number (di); |
4011 | if (num < 0) |
4012 | return NULL; |
4013 | |
4014 | struct demangle_component *ret = d_make_empty (di); |
4015 | if (ret) |
4016 | { |
4017 | ret->type = DEMANGLE_COMPONENT_LAMBDA; |
4018 | ret->u.s_unary_num.sub = tl; |
4019 | ret->u.s_unary_num.num = num; |
4020 | } |
4021 | |
4022 | return ret; |
4023 | } |
4024 | |
4025 | /* <unnamed-type-name> ::= Ut [ <nonnegative number> ] _ */ |
4026 | |
4027 | static struct demangle_component * |
4028 | d_unnamed_type (struct d_info *di) |
4029 | { |
4030 | struct demangle_component *ret; |
4031 | int num; |
4032 | |
4033 | if (! d_check_char (di, 'U')) |
4034 | return NULL; |
4035 | if (! d_check_char (di, 't')) |
4036 | return NULL; |
4037 | |
4038 | num = d_compact_number (di); |
4039 | if (num < 0) |
4040 | return NULL; |
4041 | |
4042 | ret = d_make_empty (di); |
4043 | if (ret) |
4044 | { |
4045 | ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE; |
4046 | ret->u.s_number.number = num; |
4047 | } |
4048 | |
4049 | if (! d_add_substitution (di, ret)) |
4050 | return NULL; |
4051 | |
4052 | return ret; |
4053 | } |
4054 | |
4055 | /* <clone-suffix> ::= [ . <clone-type-identifier> ] [ . <nonnegative number> ]* |
4056 | */ |
4057 | |
4058 | static struct demangle_component * |
4059 | d_clone_suffix (struct d_info *di, struct demangle_component *encoding) |
4060 | { |
4061 | const char *suffix = d_str (di); |
4062 | const char *pend = suffix; |
4063 | struct demangle_component *n; |
4064 | |
4065 | if (*pend == '.' && (IS_LOWER (pend[1]) || IS_DIGIT (pend[1]) |
4066 | || pend[1] == '_')) |
4067 | { |
4068 | pend += 2; |
4069 | while (IS_LOWER (*pend) || IS_DIGIT (*pend) || *pend == '_') |
4070 | ++pend; |
4071 | } |
4072 | while (*pend == '.' && IS_DIGIT (pend[1])) |
4073 | { |
4074 | pend += 2; |
4075 | while (IS_DIGIT (*pend)) |
4076 | ++pend; |
4077 | } |
4078 | d_advance (di, pend - suffix); |
4079 | n = d_make_name (di, s: suffix, len: pend - suffix); |
4080 | return d_make_comp (di, type: DEMANGLE_COMPONENT_CLONE, left: encoding, right: n); |
4081 | } |
4082 | |
4083 | /* Add a new substitution. */ |
4084 | |
4085 | static int |
4086 | d_add_substitution (struct d_info *di, struct demangle_component *dc) |
4087 | { |
4088 | if (dc == NULL) |
4089 | return 0; |
4090 | if (di->next_sub >= di->num_subs) |
4091 | return 0; |
4092 | di->subs[di->next_sub] = dc; |
4093 | ++di->next_sub; |
4094 | return 1; |
4095 | } |
4096 | |
4097 | /* <substitution> ::= S <seq-id> _ |
4098 | ::= S_ |
4099 | ::= St |
4100 | ::= Sa |
4101 | ::= Sb |
4102 | ::= Ss |
4103 | ::= Si |
4104 | ::= So |
4105 | ::= Sd |
4106 | |
4107 | If PREFIX is non-zero, then this type is being used as a prefix in |
4108 | a qualified name. In this case, for the standard substitutions, we |
4109 | need to check whether we are being used as a prefix for a |
4110 | constructor or destructor, and return a full template name. |
4111 | Otherwise we will get something like std::iostream::~iostream() |
4112 | which does not correspond particularly well to any function which |
4113 | actually appears in the source. |
4114 | */ |
4115 | |
4116 | static const struct d_standard_sub_info standard_subs[] = |
4117 | { |
4118 | { .code: 't', NL ("std" ), |
4119 | NL ("std" ), |
4120 | NULL, .set_last_name_len: 0 }, |
4121 | { .code: 'a', NL ("std::allocator" ), |
4122 | NL ("std::allocator" ), |
4123 | NL ("allocator" ) }, |
4124 | { .code: 'b', NL ("std::basic_string" ), |
4125 | NL ("std::basic_string" ), |
4126 | NL ("basic_string" ) }, |
4127 | { .code: 's', NL ("std::string" ), |
4128 | NL ("std::basic_string<char, std::char_traits<char>, std::allocator<char> >" ), |
4129 | NL ("basic_string" ) }, |
4130 | { .code: 'i', NL ("std::istream" ), |
4131 | NL ("std::basic_istream<char, std::char_traits<char> >" ), |
4132 | NL ("basic_istream" ) }, |
4133 | { .code: 'o', NL ("std::ostream" ), |
4134 | NL ("std::basic_ostream<char, std::char_traits<char> >" ), |
4135 | NL ("basic_ostream" ) }, |
4136 | { .code: 'd', NL ("std::iostream" ), |
4137 | NL ("std::basic_iostream<char, std::char_traits<char> >" ), |
4138 | NL ("basic_iostream" ) } |
4139 | }; |
4140 | |
4141 | static struct demangle_component * |
4142 | d_substitution (struct d_info *di, int prefix) |
4143 | { |
4144 | char c; |
4145 | |
4146 | if (! d_check_char (di, 'S')) |
4147 | return NULL; |
4148 | |
4149 | c = d_next_char (di); |
4150 | if (c == '_' || IS_DIGIT (c) || IS_UPPER (c)) |
4151 | { |
4152 | unsigned int id; |
4153 | |
4154 | id = 0; |
4155 | if (c != '_') |
4156 | { |
4157 | do |
4158 | { |
4159 | unsigned int new_id; |
4160 | |
4161 | if (IS_DIGIT (c)) |
4162 | new_id = id * 36 + c - '0'; |
4163 | else if (IS_UPPER (c)) |
4164 | new_id = id * 36 + c - 'A' + 10; |
4165 | else |
4166 | return NULL; |
4167 | if (new_id < id) |
4168 | return NULL; |
4169 | id = new_id; |
4170 | c = d_next_char (di); |
4171 | } |
4172 | while (c != '_'); |
4173 | |
4174 | ++id; |
4175 | } |
4176 | |
4177 | if (id >= (unsigned int) di->next_sub) |
4178 | return NULL; |
4179 | |
4180 | return di->subs[id]; |
4181 | } |
4182 | else |
4183 | { |
4184 | int verbose; |
4185 | const struct d_standard_sub_info *p; |
4186 | const struct d_standard_sub_info *pend; |
4187 | |
4188 | verbose = (di->options & DMGL_VERBOSE) != 0; |
4189 | if (! verbose && prefix) |
4190 | { |
4191 | char peek; |
4192 | |
4193 | peek = d_peek_char (di); |
4194 | if (peek == 'C' || peek == 'D') |
4195 | verbose = 1; |
4196 | } |
4197 | |
4198 | pend = (&standard_subs[0] |
4199 | + sizeof standard_subs / sizeof standard_subs[0]); |
4200 | for (p = &standard_subs[0]; p < pend; ++p) |
4201 | { |
4202 | if (c == p->code) |
4203 | { |
4204 | const char *s; |
4205 | int len; |
4206 | struct demangle_component *dc; |
4207 | |
4208 | if (p->set_last_name != NULL) |
4209 | di->last_name = d_make_sub (di, name: p->set_last_name, |
4210 | len: p->set_last_name_len); |
4211 | if (verbose) |
4212 | { |
4213 | s = p->full_expansion; |
4214 | len = p->full_len; |
4215 | } |
4216 | else |
4217 | { |
4218 | s = p->simple_expansion; |
4219 | len = p->simple_len; |
4220 | } |
4221 | di->expansion += len; |
4222 | dc = d_make_sub (di, name: s, len); |
4223 | if (d_peek_char (di) == 'B') |
4224 | { |
4225 | /* If there are ABI tags on the abbreviation, it becomes |
4226 | a substitution candidate. */ |
4227 | dc = d_abi_tags (di, dc); |
4228 | if (! d_add_substitution (di, dc)) |
4229 | return NULL; |
4230 | } |
4231 | return dc; |
4232 | } |
4233 | } |
4234 | |
4235 | return NULL; |
4236 | } |
4237 | } |
4238 | |
4239 | static void |
4240 | d_checkpoint (struct d_info *di, struct d_info_checkpoint *checkpoint) |
4241 | { |
4242 | checkpoint->n = di->n; |
4243 | checkpoint->next_comp = di->next_comp; |
4244 | checkpoint->next_sub = di->next_sub; |
4245 | checkpoint->expansion = di->expansion; |
4246 | } |
4247 | |
4248 | static void |
4249 | d_backtrack (struct d_info *di, struct d_info_checkpoint *checkpoint) |
4250 | { |
4251 | di->n = checkpoint->n; |
4252 | di->next_comp = checkpoint->next_comp; |
4253 | di->next_sub = checkpoint->next_sub; |
4254 | di->expansion = checkpoint->expansion; |
4255 | } |
4256 | |
4257 | /* Initialize a growable string. */ |
4258 | |
4259 | static void |
4260 | d_growable_string_init (struct d_growable_string *dgs, size_t estimate) |
4261 | { |
4262 | dgs->buf = NULL; |
4263 | dgs->len = 0; |
4264 | dgs->alc = 0; |
4265 | dgs->allocation_failure = 0; |
4266 | |
4267 | if (estimate > 0) |
4268 | d_growable_string_resize (dgs, estimate); |
4269 | } |
4270 | |
4271 | /* Grow a growable string to a given size. */ |
4272 | |
4273 | static inline void |
4274 | d_growable_string_resize (struct d_growable_string *dgs, size_t need) |
4275 | { |
4276 | size_t newalc; |
4277 | char *newbuf; |
4278 | |
4279 | if (dgs->allocation_failure) |
4280 | return; |
4281 | |
4282 | /* Start allocation at two bytes to avoid any possibility of confusion |
4283 | with the special value of 1 used as a return in *palc to indicate |
4284 | allocation failures. */ |
4285 | newalc = dgs->alc > 0 ? dgs->alc : 2; |
4286 | while (newalc < need) |
4287 | newalc <<= 1; |
4288 | |
4289 | newbuf = (char *) realloc (ptr: dgs->buf, size: newalc); |
4290 | if (newbuf == NULL) |
4291 | { |
4292 | free (ptr: dgs->buf); |
4293 | dgs->buf = NULL; |
4294 | dgs->len = 0; |
4295 | dgs->alc = 0; |
4296 | dgs->allocation_failure = 1; |
4297 | return; |
4298 | } |
4299 | dgs->buf = newbuf; |
4300 | dgs->alc = newalc; |
4301 | } |
4302 | |
4303 | /* Append a buffer to a growable string. */ |
4304 | |
4305 | static inline void |
4306 | d_growable_string_append_buffer (struct d_growable_string *dgs, |
4307 | const char *s, size_t l) |
4308 | { |
4309 | size_t need; |
4310 | |
4311 | need = dgs->len + l + 1; |
4312 | if (need > dgs->alc) |
4313 | d_growable_string_resize (dgs, need); |
4314 | |
4315 | if (dgs->allocation_failure) |
4316 | return; |
4317 | |
4318 | memcpy (dest: dgs->buf + dgs->len, src: s, n: l); |
4319 | dgs->buf[dgs->len + l] = '\0'; |
4320 | dgs->len += l; |
4321 | } |
4322 | |
4323 | /* Bridge growable strings to the callback mechanism. */ |
4324 | |
4325 | static void |
4326 | d_growable_string_callback_adapter (const char *s, size_t l, void *opaque) |
4327 | { |
4328 | struct d_growable_string *dgs = (struct d_growable_string*) opaque; |
4329 | |
4330 | d_growable_string_append_buffer (dgs, s, l); |
4331 | } |
4332 | |
4333 | /* Walk the tree, counting the number of templates encountered, and |
4334 | the number of times a scope might be saved. These counts will be |
4335 | used to allocate data structures for d_print_comp, so the logic |
4336 | here must mirror the logic d_print_comp will use. It is not |
4337 | important that the resulting numbers are exact, so long as they |
4338 | are larger than the actual numbers encountered. */ |
4339 | |
4340 | static void |
4341 | d_count_templates_scopes (struct d_print_info *dpi, |
4342 | struct demangle_component *dc) |
4343 | { |
4344 | if (dc == NULL || dc->d_counting > 1 || dpi->recursion > MAX_RECURSION_COUNT) |
4345 | return; |
4346 | |
4347 | ++ dc->d_counting; |
4348 | |
4349 | switch (dc->type) |
4350 | { |
4351 | case DEMANGLE_COMPONENT_NAME: |
4352 | case DEMANGLE_COMPONENT_TEMPLATE_PARAM: |
4353 | case DEMANGLE_COMPONENT_FUNCTION_PARAM: |
4354 | case DEMANGLE_COMPONENT_SUB_STD: |
4355 | case DEMANGLE_COMPONENT_BUILTIN_TYPE: |
4356 | case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: |
4357 | case DEMANGLE_COMPONENT_OPERATOR: |
4358 | case DEMANGLE_COMPONENT_CHARACTER: |
4359 | case DEMANGLE_COMPONENT_NUMBER: |
4360 | case DEMANGLE_COMPONENT_UNNAMED_TYPE: |
4361 | case DEMANGLE_COMPONENT_STRUCTURED_BINDING: |
4362 | case DEMANGLE_COMPONENT_MODULE_NAME: |
4363 | case DEMANGLE_COMPONENT_MODULE_PARTITION: |
4364 | case DEMANGLE_COMPONENT_MODULE_INIT: |
4365 | case DEMANGLE_COMPONENT_FIXED_TYPE: |
4366 | case DEMANGLE_COMPONENT_TEMPLATE_HEAD: |
4367 | case DEMANGLE_COMPONENT_TEMPLATE_TYPE_PARM: |
4368 | case DEMANGLE_COMPONENT_TEMPLATE_NON_TYPE_PARM: |
4369 | case DEMANGLE_COMPONENT_TEMPLATE_TEMPLATE_PARM: |
4370 | case DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM: |
4371 | break; |
4372 | |
4373 | case DEMANGLE_COMPONENT_TEMPLATE: |
4374 | dpi->num_copy_templates++; |
4375 | goto recurse_left_right; |
4376 | |
4377 | case DEMANGLE_COMPONENT_REFERENCE: |
4378 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE: |
4379 | if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM) |
4380 | dpi->num_saved_scopes++; |
4381 | goto recurse_left_right; |
4382 | |
4383 | case DEMANGLE_COMPONENT_QUAL_NAME: |
4384 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
4385 | case DEMANGLE_COMPONENT_TYPED_NAME: |
4386 | case DEMANGLE_COMPONENT_VTABLE: |
4387 | case DEMANGLE_COMPONENT_VTT: |
4388 | case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE: |
4389 | case DEMANGLE_COMPONENT_TYPEINFO: |
4390 | case DEMANGLE_COMPONENT_TYPEINFO_NAME: |
4391 | case DEMANGLE_COMPONENT_TYPEINFO_FN: |
4392 | case DEMANGLE_COMPONENT_THUNK: |
4393 | case DEMANGLE_COMPONENT_VIRTUAL_THUNK: |
4394 | case DEMANGLE_COMPONENT_COVARIANT_THUNK: |
4395 | case DEMANGLE_COMPONENT_JAVA_CLASS: |
4396 | case DEMANGLE_COMPONENT_GUARD: |
4397 | case DEMANGLE_COMPONENT_TLS_INIT: |
4398 | case DEMANGLE_COMPONENT_TLS_WRAPPER: |
4399 | case DEMANGLE_COMPONENT_REFTEMP: |
4400 | case DEMANGLE_COMPONENT_HIDDEN_ALIAS: |
4401 | case DEMANGLE_COMPONENT_RESTRICT: |
4402 | case DEMANGLE_COMPONENT_VOLATILE: |
4403 | case DEMANGLE_COMPONENT_CONST: |
4404 | case DEMANGLE_COMPONENT_RESTRICT_THIS: |
4405 | case DEMANGLE_COMPONENT_VOLATILE_THIS: |
4406 | case DEMANGLE_COMPONENT_CONST_THIS: |
4407 | case DEMANGLE_COMPONENT_REFERENCE_THIS: |
4408 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: |
4409 | case DEMANGLE_COMPONENT_TRANSACTION_SAFE: |
4410 | case DEMANGLE_COMPONENT_NOEXCEPT: |
4411 | case DEMANGLE_COMPONENT_THROW_SPEC: |
4412 | case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: |
4413 | case DEMANGLE_COMPONENT_POINTER: |
4414 | case DEMANGLE_COMPONENT_COMPLEX: |
4415 | case DEMANGLE_COMPONENT_IMAGINARY: |
4416 | case DEMANGLE_COMPONENT_VENDOR_TYPE: |
4417 | case DEMANGLE_COMPONENT_FUNCTION_TYPE: |
4418 | case DEMANGLE_COMPONENT_ARRAY_TYPE: |
4419 | case DEMANGLE_COMPONENT_PTRMEM_TYPE: |
4420 | case DEMANGLE_COMPONENT_VECTOR_TYPE: |
4421 | case DEMANGLE_COMPONENT_ARGLIST: |
4422 | case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: |
4423 | case DEMANGLE_COMPONENT_TPARM_OBJ: |
4424 | case DEMANGLE_COMPONENT_INITIALIZER_LIST: |
4425 | case DEMANGLE_COMPONENT_CAST: |
4426 | case DEMANGLE_COMPONENT_CONVERSION: |
4427 | case DEMANGLE_COMPONENT_NULLARY: |
4428 | case DEMANGLE_COMPONENT_UNARY: |
4429 | case DEMANGLE_COMPONENT_BINARY: |
4430 | case DEMANGLE_COMPONENT_BINARY_ARGS: |
4431 | case DEMANGLE_COMPONENT_TRINARY: |
4432 | case DEMANGLE_COMPONENT_TRINARY_ARG1: |
4433 | case DEMANGLE_COMPONENT_TRINARY_ARG2: |
4434 | case DEMANGLE_COMPONENT_LITERAL: |
4435 | case DEMANGLE_COMPONENT_LITERAL_NEG: |
4436 | case DEMANGLE_COMPONENT_VENDOR_EXPR: |
4437 | case DEMANGLE_COMPONENT_JAVA_RESOURCE: |
4438 | case DEMANGLE_COMPONENT_COMPOUND_NAME: |
4439 | case DEMANGLE_COMPONENT_DECLTYPE: |
4440 | case DEMANGLE_COMPONENT_TRANSACTION_CLONE: |
4441 | case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE: |
4442 | case DEMANGLE_COMPONENT_PACK_EXPANSION: |
4443 | case DEMANGLE_COMPONENT_TAGGED_NAME: |
4444 | case DEMANGLE_COMPONENT_CLONE: |
4445 | recurse_left_right: |
4446 | /* PR 89394 - Check for too much recursion. */ |
4447 | if (dpi->recursion > DEMANGLE_RECURSION_LIMIT) |
4448 | /* FIXME: There ought to be a way to report to the |
4449 | user that the recursion limit has been reached. */ |
4450 | return; |
4451 | |
4452 | ++ dpi->recursion; |
4453 | d_count_templates_scopes (dpi, d_left (dc)); |
4454 | d_count_templates_scopes (dpi, d_right (dc)); |
4455 | -- dpi->recursion; |
4456 | break; |
4457 | |
4458 | case DEMANGLE_COMPONENT_CTOR: |
4459 | d_count_templates_scopes (dpi, dc: dc->u.s_ctor.name); |
4460 | break; |
4461 | |
4462 | case DEMANGLE_COMPONENT_DTOR: |
4463 | d_count_templates_scopes (dpi, dc: dc->u.s_dtor.name); |
4464 | break; |
4465 | |
4466 | case DEMANGLE_COMPONENT_EXTENDED_OPERATOR: |
4467 | d_count_templates_scopes (dpi, dc: dc->u.s_extended_operator.name); |
4468 | break; |
4469 | |
4470 | case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS: |
4471 | case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS: |
4472 | case DEMANGLE_COMPONENT_MODULE_ENTITY: |
4473 | case DEMANGLE_COMPONENT_FRIEND: |
4474 | d_count_templates_scopes (dpi, d_left (dc)); |
4475 | break; |
4476 | |
4477 | case DEMANGLE_COMPONENT_LAMBDA: |
4478 | case DEMANGLE_COMPONENT_DEFAULT_ARG: |
4479 | d_count_templates_scopes (dpi, dc: dc->u.s_unary_num.sub); |
4480 | break; |
4481 | } |
4482 | } |
4483 | |
4484 | /* Initialize a print information structure. */ |
4485 | |
4486 | static void |
4487 | d_print_init (struct d_print_info *dpi, demangle_callbackref callback, |
4488 | void *opaque, struct demangle_component *dc) |
4489 | { |
4490 | dpi->len = 0; |
4491 | dpi->last_char = '\0'; |
4492 | dpi->templates = NULL; |
4493 | dpi->modifiers = NULL; |
4494 | dpi->pack_index = 0; |
4495 | dpi->flush_count = 0; |
4496 | |
4497 | dpi->callback = callback; |
4498 | dpi->opaque = opaque; |
4499 | |
4500 | dpi->demangle_failure = 0; |
4501 | dpi->recursion = 0; |
4502 | dpi->lambda_tpl_parms = 0; |
4503 | |
4504 | dpi->component_stack = NULL; |
4505 | |
4506 | dpi->saved_scopes = NULL; |
4507 | dpi->next_saved_scope = 0; |
4508 | dpi->num_saved_scopes = 0; |
4509 | |
4510 | dpi->copy_templates = NULL; |
4511 | dpi->next_copy_template = 0; |
4512 | dpi->num_copy_templates = 0; |
4513 | |
4514 | d_count_templates_scopes (dpi, dc); |
4515 | /* If we did not reach the recursion limit, then reset the |
4516 | current recursion value back to 0, so that we can print |
4517 | the templates. */ |
4518 | if (dpi->recursion < DEMANGLE_RECURSION_LIMIT) |
4519 | dpi->recursion = 0; |
4520 | dpi->num_copy_templates *= dpi->num_saved_scopes; |
4521 | |
4522 | dpi->current_template = NULL; |
4523 | } |
4524 | |
4525 | /* Indicate that an error occurred during printing, and test for error. */ |
4526 | |
4527 | static inline void |
4528 | d_print_error (struct d_print_info *dpi) |
4529 | { |
4530 | dpi->demangle_failure = 1; |
4531 | } |
4532 | |
4533 | static inline int |
4534 | d_print_saw_error (struct d_print_info *dpi) |
4535 | { |
4536 | return dpi->demangle_failure != 0; |
4537 | } |
4538 | |
4539 | /* Flush buffered characters to the callback. */ |
4540 | |
4541 | static inline void |
4542 | d_print_flush (struct d_print_info *dpi) |
4543 | { |
4544 | dpi->buf[dpi->len] = '\0'; |
4545 | dpi->callback (dpi->buf, dpi->len, dpi->opaque); |
4546 | dpi->len = 0; |
4547 | dpi->flush_count++; |
4548 | } |
4549 | |
4550 | /* Append characters and buffers for printing. */ |
4551 | |
4552 | static inline void |
4553 | d_append_char (struct d_print_info *dpi, char c) |
4554 | { |
4555 | if (dpi->len == sizeof (dpi->buf) - 1) |
4556 | d_print_flush (dpi); |
4557 | |
4558 | dpi->buf[dpi->len++] = c; |
4559 | dpi->last_char = c; |
4560 | } |
4561 | |
4562 | static inline void |
4563 | d_append_buffer (struct d_print_info *dpi, const char *s, size_t l) |
4564 | { |
4565 | size_t i; |
4566 | |
4567 | for (i = 0; i < l; i++) |
4568 | d_append_char (dpi, c: s[i]); |
4569 | } |
4570 | |
4571 | static inline void |
4572 | d_append_string (struct d_print_info *dpi, const char *s) |
4573 | { |
4574 | d_append_buffer (dpi, s, l: strlen (s: s)); |
4575 | } |
4576 | |
4577 | static inline void |
4578 | d_append_num (struct d_print_info *dpi, int l) |
4579 | { |
4580 | char buf[25]; |
4581 | sprintf (s: buf,format: "%d" , l); |
4582 | d_append_string (dpi, s: buf); |
4583 | } |
4584 | |
4585 | static inline char |
4586 | d_last_char (struct d_print_info *dpi) |
4587 | { |
4588 | return dpi->last_char; |
4589 | } |
4590 | |
4591 | /* Turn components into a human readable string. OPTIONS is the |
4592 | options bits passed to the demangler. DC is the tree to print. |
4593 | CALLBACK is a function to call to flush demangled string segments |
4594 | as they fill the intermediate buffer, and OPAQUE is a generalized |
4595 | callback argument. On success, this returns 1. On failure, |
4596 | it returns 0, indicating a bad parse. It does not use heap |
4597 | memory to build an output string, so cannot encounter memory |
4598 | allocation failure. */ |
4599 | |
4600 | CP_STATIC_IF_GLIBCPP_V3 |
4601 | int |
4602 | cplus_demangle_print_callback (int options, |
4603 | struct demangle_component *dc, |
4604 | demangle_callbackref callback, void *opaque) |
4605 | { |
4606 | struct d_print_info dpi; |
4607 | |
4608 | d_print_init (dpi: &dpi, callback, opaque, dc); |
4609 | |
4610 | { |
4611 | #ifdef CP_DYNAMIC_ARRAYS |
4612 | /* Avoid zero-length VLAs, which are prohibited by the C99 standard |
4613 | and flagged as errors by Address Sanitizer. */ |
4614 | __extension__ struct d_saved_scope scopes[(dpi.num_saved_scopes > 0) |
4615 | ? dpi.num_saved_scopes : 1]; |
4616 | __extension__ struct d_print_template temps[(dpi.num_copy_templates > 0) |
4617 | ? dpi.num_copy_templates : 1]; |
4618 | |
4619 | dpi.saved_scopes = scopes; |
4620 | dpi.copy_templates = temps; |
4621 | #else |
4622 | dpi.saved_scopes = alloca (dpi.num_saved_scopes |
4623 | * sizeof (*dpi.saved_scopes)); |
4624 | dpi.copy_templates = alloca (dpi.num_copy_templates |
4625 | * sizeof (*dpi.copy_templates)); |
4626 | #endif |
4627 | |
4628 | d_print_comp (&dpi, options, dc); |
4629 | } |
4630 | |
4631 | d_print_flush (dpi: &dpi); |
4632 | |
4633 | return ! d_print_saw_error (dpi: &dpi); |
4634 | } |
4635 | |
4636 | /* Turn components into a human readable string. OPTIONS is the |
4637 | options bits passed to the demangler. DC is the tree to print. |
4638 | ESTIMATE is a guess at the length of the result. This returns a |
4639 | string allocated by malloc, or NULL on error. On success, this |
4640 | sets *PALC to the size of the allocated buffer. On failure, this |
4641 | sets *PALC to 0 for a bad parse, or to 1 for a memory allocation |
4642 | failure. */ |
4643 | |
4644 | CP_STATIC_IF_GLIBCPP_V3 |
4645 | char * |
4646 | cplus_demangle_print (int options, struct demangle_component *dc, |
4647 | int estimate, size_t *palc) |
4648 | { |
4649 | struct d_growable_string dgs; |
4650 | |
4651 | d_growable_string_init (dgs: &dgs, estimate); |
4652 | |
4653 | if (! cplus_demangle_print_callback (options, dc, |
4654 | callback: d_growable_string_callback_adapter, |
4655 | opaque: &dgs)) |
4656 | { |
4657 | free (ptr: dgs.buf); |
4658 | *palc = 0; |
4659 | return NULL; |
4660 | } |
4661 | |
4662 | *palc = dgs.allocation_failure ? 1 : dgs.alc; |
4663 | return dgs.buf; |
4664 | } |
4665 | |
4666 | /* Returns the I'th element of the template arglist ARGS, or NULL on |
4667 | failure. If I is negative, return the entire arglist. */ |
4668 | |
4669 | static struct demangle_component * |
4670 | d_index_template_argument (struct demangle_component *args, int i) |
4671 | { |
4672 | struct demangle_component *a; |
4673 | |
4674 | if (i < 0) |
4675 | /* Print the whole argument pack. */ |
4676 | return args; |
4677 | |
4678 | for (a = args; |
4679 | a != NULL; |
4680 | a = d_right (a)) |
4681 | { |
4682 | if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) |
4683 | return NULL; |
4684 | if (i <= 0) |
4685 | break; |
4686 | --i; |
4687 | } |
4688 | if (i != 0 || a == NULL) |
4689 | return NULL; |
4690 | |
4691 | return d_left (a); |
4692 | } |
4693 | |
4694 | /* Returns the template argument from the current context indicated by DC, |
4695 | which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */ |
4696 | |
4697 | static struct demangle_component * |
4698 | d_lookup_template_argument (struct d_print_info *dpi, |
4699 | const struct demangle_component *dc) |
4700 | { |
4701 | if (dpi->templates == NULL) |
4702 | { |
4703 | d_print_error (dpi); |
4704 | return NULL; |
4705 | } |
4706 | |
4707 | return d_index_template_argument |
4708 | (d_right (dpi->templates->template_decl), |
4709 | i: dc->u.s_number.number); |
4710 | } |
4711 | |
4712 | /* Returns a template argument pack used in DC (any will do), or NULL. */ |
4713 | |
4714 | static struct demangle_component * |
4715 | d_find_pack (struct d_print_info *dpi, |
4716 | const struct demangle_component *dc) |
4717 | { |
4718 | struct demangle_component *a; |
4719 | if (dc == NULL) |
4720 | return NULL; |
4721 | |
4722 | switch (dc->type) |
4723 | { |
4724 | case DEMANGLE_COMPONENT_TEMPLATE_PARAM: |
4725 | a = d_lookup_template_argument (dpi, dc); |
4726 | if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) |
4727 | return a; |
4728 | return NULL; |
4729 | |
4730 | case DEMANGLE_COMPONENT_PACK_EXPANSION: |
4731 | return NULL; |
4732 | |
4733 | case DEMANGLE_COMPONENT_LAMBDA: |
4734 | case DEMANGLE_COMPONENT_NAME: |
4735 | case DEMANGLE_COMPONENT_TAGGED_NAME: |
4736 | case DEMANGLE_COMPONENT_OPERATOR: |
4737 | case DEMANGLE_COMPONENT_BUILTIN_TYPE: |
4738 | case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: |
4739 | case DEMANGLE_COMPONENT_SUB_STD: |
4740 | case DEMANGLE_COMPONENT_CHARACTER: |
4741 | case DEMANGLE_COMPONENT_FUNCTION_PARAM: |
4742 | case DEMANGLE_COMPONENT_UNNAMED_TYPE: |
4743 | case DEMANGLE_COMPONENT_DEFAULT_ARG: |
4744 | case DEMANGLE_COMPONENT_NUMBER: |
4745 | return NULL; |
4746 | |
4747 | case DEMANGLE_COMPONENT_EXTENDED_OPERATOR: |
4748 | return d_find_pack (dpi, dc: dc->u.s_extended_operator.name); |
4749 | case DEMANGLE_COMPONENT_CTOR: |
4750 | return d_find_pack (dpi, dc: dc->u.s_ctor.name); |
4751 | case DEMANGLE_COMPONENT_DTOR: |
4752 | return d_find_pack (dpi, dc: dc->u.s_dtor.name); |
4753 | |
4754 | default: |
4755 | a = d_find_pack (dpi, d_left (dc)); |
4756 | if (a) |
4757 | return a; |
4758 | return d_find_pack (dpi, d_right (dc)); |
4759 | } |
4760 | } |
4761 | |
4762 | /* Returns the length of the template argument pack DC. */ |
4763 | |
4764 | static int |
4765 | d_pack_length (const struct demangle_component *dc) |
4766 | { |
4767 | int count = 0; |
4768 | while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST |
4769 | && d_left (dc) != NULL) |
4770 | { |
4771 | ++count; |
4772 | dc = d_right (dc); |
4773 | } |
4774 | return count; |
4775 | } |
4776 | |
4777 | /* Returns the number of template args in DC, expanding any pack expansions |
4778 | found there. */ |
4779 | |
4780 | static int |
4781 | d_args_length (struct d_print_info *dpi, const struct demangle_component *dc) |
4782 | { |
4783 | int count = 0; |
4784 | for (; dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST; |
4785 | dc = d_right (dc)) |
4786 | { |
4787 | struct demangle_component *elt = d_left (dc); |
4788 | if (elt == NULL) |
4789 | break; |
4790 | if (elt->type == DEMANGLE_COMPONENT_PACK_EXPANSION) |
4791 | { |
4792 | struct demangle_component *a = d_find_pack (dpi, d_left (elt)); |
4793 | count += d_pack_length (dc: a); |
4794 | } |
4795 | else |
4796 | ++count; |
4797 | } |
4798 | return count; |
4799 | } |
4800 | |
4801 | /* DC is a component of a mangled expression. Print it, wrapped in parens |
4802 | if needed. */ |
4803 | |
4804 | static void |
4805 | d_print_subexpr (struct d_print_info *dpi, int options, |
4806 | struct demangle_component *dc) |
4807 | { |
4808 | int simple = 0; |
4809 | if (dc->type == DEMANGLE_COMPONENT_NAME |
4810 | || dc->type == DEMANGLE_COMPONENT_QUAL_NAME |
4811 | || dc->type == DEMANGLE_COMPONENT_INITIALIZER_LIST |
4812 | || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM) |
4813 | simple = 1; |
4814 | if (!simple) |
4815 | d_append_char (dpi, c: '('); |
4816 | d_print_comp (dpi, options, dc); |
4817 | if (!simple) |
4818 | d_append_char (dpi, c: ')'); |
4819 | } |
4820 | |
4821 | /* Save the current scope. */ |
4822 | |
4823 | static void |
4824 | d_save_scope (struct d_print_info *dpi, |
4825 | const struct demangle_component *container) |
4826 | { |
4827 | struct d_saved_scope *scope; |
4828 | struct d_print_template *src, **link; |
4829 | |
4830 | if (dpi->next_saved_scope >= dpi->num_saved_scopes) |
4831 | { |
4832 | d_print_error (dpi); |
4833 | return; |
4834 | } |
4835 | scope = &dpi->saved_scopes[dpi->next_saved_scope]; |
4836 | dpi->next_saved_scope++; |
4837 | |
4838 | scope->container = container; |
4839 | link = &scope->templates; |
4840 | |
4841 | for (src = dpi->templates; src != NULL; src = src->next) |
4842 | { |
4843 | struct d_print_template *dst; |
4844 | |
4845 | if (dpi->next_copy_template >= dpi->num_copy_templates) |
4846 | { |
4847 | d_print_error (dpi); |
4848 | return; |
4849 | } |
4850 | dst = &dpi->copy_templates[dpi->next_copy_template]; |
4851 | dpi->next_copy_template++; |
4852 | |
4853 | dst->template_decl = src->template_decl; |
4854 | *link = dst; |
4855 | link = &dst->next; |
4856 | } |
4857 | |
4858 | *link = NULL; |
4859 | } |
4860 | |
4861 | /* Attempt to locate a previously saved scope. Returns NULL if no |
4862 | corresponding saved scope was found. */ |
4863 | |
4864 | static struct d_saved_scope * |
4865 | d_get_saved_scope (struct d_print_info *dpi, |
4866 | const struct demangle_component *container) |
4867 | { |
4868 | int i; |
4869 | |
4870 | for (i = 0; i < dpi->next_saved_scope; i++) |
4871 | if (dpi->saved_scopes[i].container == container) |
4872 | return &dpi->saved_scopes[i]; |
4873 | |
4874 | return NULL; |
4875 | } |
4876 | |
4877 | /* If DC is a C++17 fold-expression, print it and return true; otherwise |
4878 | return false. */ |
4879 | |
4880 | static int |
4881 | d_maybe_print_fold_expression (struct d_print_info *dpi, int options, |
4882 | struct demangle_component *dc) |
4883 | { |
4884 | struct demangle_component *ops, *operator_, *op1, *op2; |
4885 | int save_idx; |
4886 | |
4887 | const char *fold_code = d_left (dc)->u.s_operator.op->code; |
4888 | if (fold_code[0] != 'f') |
4889 | return 0; |
4890 | |
4891 | ops = d_right (dc); |
4892 | operator_ = d_left (ops); |
4893 | op1 = d_right (ops); |
4894 | op2 = 0; |
4895 | if (op1->type == DEMANGLE_COMPONENT_TRINARY_ARG2) |
4896 | { |
4897 | op2 = d_right (op1); |
4898 | op1 = d_left (op1); |
4899 | } |
4900 | |
4901 | /* Print the whole pack. */ |
4902 | save_idx = dpi->pack_index; |
4903 | dpi->pack_index = -1; |
4904 | |
4905 | switch (fold_code[1]) |
4906 | { |
4907 | /* Unary left fold, (... + X). */ |
4908 | case 'l': |
4909 | d_append_string (dpi, s: "(..." ); |
4910 | d_print_expr_op (dpi, options, operator_); |
4911 | d_print_subexpr (dpi, options, dc: op1); |
4912 | d_append_char (dpi, c: ')'); |
4913 | break; |
4914 | |
4915 | /* Unary right fold, (X + ...). */ |
4916 | case 'r': |
4917 | d_append_char (dpi, c: '('); |
4918 | d_print_subexpr (dpi, options, dc: op1); |
4919 | d_print_expr_op (dpi, options, operator_); |
4920 | d_append_string (dpi, s: "...)" ); |
4921 | break; |
4922 | |
4923 | /* Binary left fold, (42 + ... + X). */ |
4924 | case 'L': |
4925 | /* Binary right fold, (X + ... + 42). */ |
4926 | case 'R': |
4927 | d_append_char (dpi, c: '('); |
4928 | d_print_subexpr (dpi, options, dc: op1); |
4929 | d_print_expr_op (dpi, options, operator_); |
4930 | d_append_string (dpi, s: "..." ); |
4931 | d_print_expr_op (dpi, options, operator_); |
4932 | d_print_subexpr (dpi, options, dc: op2); |
4933 | d_append_char (dpi, c: ')'); |
4934 | break; |
4935 | } |
4936 | |
4937 | dpi->pack_index = save_idx; |
4938 | return 1; |
4939 | } |
4940 | |
4941 | /* True iff DC represents a C99-style designated initializer. */ |
4942 | |
4943 | static int |
4944 | is_designated_init (struct demangle_component *dc) |
4945 | { |
4946 | if (dc->type != DEMANGLE_COMPONENT_BINARY |
4947 | && dc->type != DEMANGLE_COMPONENT_TRINARY) |
4948 | return 0; |
4949 | |
4950 | struct demangle_component *op = d_left (dc); |
4951 | const char *code = op->u.s_operator.op->code; |
4952 | return (code[0] == 'd' |
4953 | && (code[1] == 'i' || code[1] == 'x' || code[1] == 'X')); |
4954 | } |
4955 | |
4956 | /* If DC represents a C99-style designated initializer, print it and return |
4957 | true; otherwise, return false. */ |
4958 | |
4959 | static int |
4960 | d_maybe_print_designated_init (struct d_print_info *dpi, int options, |
4961 | struct demangle_component *dc) |
4962 | { |
4963 | if (!is_designated_init (dc)) |
4964 | return 0; |
4965 | |
4966 | const char *code = d_left (dc)->u.s_operator.op->code; |
4967 | |
4968 | struct demangle_component *operands = d_right (dc); |
4969 | struct demangle_component *op1 = d_left (operands); |
4970 | struct demangle_component *op2 = d_right (operands); |
4971 | |
4972 | if (code[1] == 'i') |
4973 | d_append_char (dpi, c: '.'); |
4974 | else |
4975 | d_append_char (dpi, c: '['); |
4976 | |
4977 | d_print_comp (dpi, options, op1); |
4978 | if (code[1] == 'X') |
4979 | { |
4980 | d_append_string (dpi, s: " ... " ); |
4981 | d_print_comp (dpi, options, d_left (op2)); |
4982 | op2 = d_right (op2); |
4983 | } |
4984 | if (code[1] != 'i') |
4985 | d_append_char (dpi, c: ']'); |
4986 | if (is_designated_init (dc: op2)) |
4987 | { |
4988 | /* Don't put '=' or '(' between chained designators. */ |
4989 | d_print_comp (dpi, options, op2); |
4990 | } |
4991 | else |
4992 | { |
4993 | d_append_char (dpi, c: '='); |
4994 | d_print_subexpr (dpi, options, dc: op2); |
4995 | } |
4996 | return 1; |
4997 | } |
4998 | |
4999 | static void |
5000 | d_print_lambda_parm_name (struct d_print_info *dpi, int type, unsigned index) |
5001 | { |
5002 | const char *str; |
5003 | switch (type) |
5004 | { |
5005 | default: |
5006 | dpi->demangle_failure = 1; |
5007 | str = "" ; |
5008 | break; |
5009 | |
5010 | case DEMANGLE_COMPONENT_TEMPLATE_TYPE_PARM: |
5011 | str = "$T" ; |
5012 | break; |
5013 | |
5014 | case DEMANGLE_COMPONENT_TEMPLATE_NON_TYPE_PARM: |
5015 | str = "$N" ; |
5016 | break; |
5017 | |
5018 | case DEMANGLE_COMPONENT_TEMPLATE_TEMPLATE_PARM: |
5019 | str = "$TT" ; |
5020 | break; |
5021 | } |
5022 | d_append_string (dpi, s: str); |
5023 | d_append_num (dpi, l: index); |
5024 | } |
5025 | |
5026 | /* Subroutine to handle components. */ |
5027 | |
5028 | static void |
5029 | d_print_comp_inner (struct d_print_info *dpi, int options, |
5030 | struct demangle_component *dc) |
5031 | { |
5032 | /* Magic variable to let reference smashing skip over the next modifier |
5033 | without needing to modify *dc. */ |
5034 | struct demangle_component *mod_inner = NULL; |
5035 | |
5036 | /* Variable used to store the current templates while a previously |
5037 | captured scope is used. */ |
5038 | struct d_print_template *saved_templates; |
5039 | |
5040 | /* Nonzero if templates have been stored in the above variable. */ |
5041 | int need_template_restore = 0; |
5042 | |
5043 | if (dc == NULL) |
5044 | { |
5045 | d_print_error (dpi); |
5046 | return; |
5047 | } |
5048 | if (d_print_saw_error (dpi)) |
5049 | return; |
5050 | |
5051 | switch (dc->type) |
5052 | { |
5053 | case DEMANGLE_COMPONENT_NAME: |
5054 | if ((options & DMGL_JAVA) == 0) |
5055 | d_append_buffer (dpi, s: dc->u.s_name.s, l: dc->u.s_name.len); |
5056 | else |
5057 | d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len); |
5058 | return; |
5059 | |
5060 | case DEMANGLE_COMPONENT_TAGGED_NAME: |
5061 | d_print_comp (dpi, options, d_left (dc)); |
5062 | d_append_string (dpi, s: "[abi:" ); |
5063 | d_print_comp (dpi, options, d_right (dc)); |
5064 | d_append_char (dpi, c: ']'); |
5065 | return; |
5066 | |
5067 | case DEMANGLE_COMPONENT_STRUCTURED_BINDING: |
5068 | d_append_char (dpi, c: '['); |
5069 | for (;;) |
5070 | { |
5071 | d_print_comp (dpi, options, d_left (dc)); |
5072 | dc = d_right (dc); |
5073 | if (!dc) |
5074 | break; |
5075 | d_append_string (dpi, s: ", " ); |
5076 | } |
5077 | d_append_char (dpi, c: ']'); |
5078 | return; |
5079 | |
5080 | case DEMANGLE_COMPONENT_MODULE_ENTITY: |
5081 | d_print_comp (dpi, options, d_left (dc)); |
5082 | d_append_char (dpi, c: '@'); |
5083 | d_print_comp (dpi, options, d_right (dc)); |
5084 | return; |
5085 | |
5086 | case DEMANGLE_COMPONENT_MODULE_NAME: |
5087 | case DEMANGLE_COMPONENT_MODULE_PARTITION: |
5088 | { |
5089 | if (d_left (dc)) |
5090 | d_print_comp (dpi, options, d_left (dc)); |
5091 | char c = dc->type == DEMANGLE_COMPONENT_MODULE_PARTITION |
5092 | ? ':' : d_left (dc) ? '.' : 0; |
5093 | if (c) |
5094 | d_append_char (dpi, c); |
5095 | d_print_comp (dpi, options, d_right (dc)); |
5096 | } |
5097 | return; |
5098 | |
5099 | case DEMANGLE_COMPONENT_QUAL_NAME: |
5100 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
5101 | d_print_comp (dpi, options, d_left (dc)); |
5102 | if ((options & DMGL_JAVA) == 0) |
5103 | d_append_string (dpi, s: "::" ); |
5104 | else |
5105 | d_append_char (dpi, c: '.'); |
5106 | { |
5107 | struct demangle_component *local_name = d_right (dc); |
5108 | if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG) |
5109 | { |
5110 | d_append_string (dpi, s: "{default arg#" ); |
5111 | d_append_num (dpi, l: local_name->u.s_unary_num.num + 1); |
5112 | d_append_string (dpi, s: "}::" ); |
5113 | local_name = local_name->u.s_unary_num.sub; |
5114 | } |
5115 | d_print_comp (dpi, options, local_name); |
5116 | } |
5117 | return; |
5118 | |
5119 | case DEMANGLE_COMPONENT_TYPED_NAME: |
5120 | { |
5121 | struct d_print_mod *hold_modifiers; |
5122 | struct demangle_component *typed_name; |
5123 | struct d_print_mod adpm[4]; |
5124 | unsigned int i; |
5125 | struct d_print_template dpt; |
5126 | |
5127 | /* Pass the name down to the type so that it can be printed in |
5128 | the right place for the type. We also have to pass down |
5129 | any CV-qualifiers, which apply to the this parameter. */ |
5130 | hold_modifiers = dpi->modifiers; |
5131 | dpi->modifiers = 0; |
5132 | i = 0; |
5133 | typed_name = d_left (dc); |
5134 | while (typed_name != NULL) |
5135 | { |
5136 | if (i >= sizeof adpm / sizeof adpm[0]) |
5137 | { |
5138 | d_print_error (dpi); |
5139 | return; |
5140 | } |
5141 | |
5142 | adpm[i].next = dpi->modifiers; |
5143 | dpi->modifiers = &adpm[i]; |
5144 | adpm[i].mod = typed_name; |
5145 | adpm[i].printed = 0; |
5146 | adpm[i].templates = dpi->templates; |
5147 | ++i; |
5148 | |
5149 | if (!is_fnqual_component_type (type: typed_name->type)) |
5150 | break; |
5151 | |
5152 | typed_name = d_left (typed_name); |
5153 | } |
5154 | |
5155 | if (typed_name == NULL) |
5156 | { |
5157 | d_print_error (dpi); |
5158 | return; |
5159 | } |
5160 | |
5161 | /* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then |
5162 | there may be CV-qualifiers on its right argument which |
5163 | really apply here; this happens when parsing a class that |
5164 | is local to a function. */ |
5165 | if (typed_name->type == DEMANGLE_COMPONENT_LOCAL_NAME) |
5166 | { |
5167 | typed_name = d_right (typed_name); |
5168 | if (typed_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG) |
5169 | typed_name = typed_name->u.s_unary_num.sub; |
5170 | while (typed_name != NULL |
5171 | && is_fnqual_component_type (type: typed_name->type)) |
5172 | { |
5173 | if (i >= sizeof adpm / sizeof adpm[0]) |
5174 | { |
5175 | d_print_error (dpi); |
5176 | return; |
5177 | } |
5178 | |
5179 | adpm[i] = adpm[i - 1]; |
5180 | adpm[i].next = &adpm[i - 1]; |
5181 | dpi->modifiers = &adpm[i]; |
5182 | |
5183 | adpm[i - 1].mod = typed_name; |
5184 | adpm[i - 1].printed = 0; |
5185 | adpm[i - 1].templates = dpi->templates; |
5186 | ++i; |
5187 | |
5188 | typed_name = d_left (typed_name); |
5189 | } |
5190 | if (typed_name == NULL) |
5191 | { |
5192 | d_print_error (dpi); |
5193 | return; |
5194 | } |
5195 | } |
5196 | |
5197 | /* If typed_name is a template, then it applies to the |
5198 | function type as well. */ |
5199 | if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE) |
5200 | { |
5201 | dpt.next = dpi->templates; |
5202 | dpi->templates = &dpt; |
5203 | dpt.template_decl = typed_name; |
5204 | } |
5205 | |
5206 | d_print_comp (dpi, options, d_right (dc)); |
5207 | |
5208 | if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE) |
5209 | dpi->templates = dpt.next; |
5210 | |
5211 | /* If the modifiers didn't get printed by the type, print them |
5212 | now. */ |
5213 | while (i > 0) |
5214 | { |
5215 | --i; |
5216 | if (! adpm[i].printed) |
5217 | { |
5218 | d_append_char (dpi, c: ' '); |
5219 | d_print_mod (dpi, options, adpm[i].mod); |
5220 | } |
5221 | } |
5222 | |
5223 | dpi->modifiers = hold_modifiers; |
5224 | |
5225 | return; |
5226 | } |
5227 | |
5228 | case DEMANGLE_COMPONENT_TEMPLATE: |
5229 | { |
5230 | struct d_print_mod *hold_dpm; |
5231 | struct demangle_component *dcl; |
5232 | const struct demangle_component *hold_current; |
5233 | |
5234 | /* This template may need to be referenced by a cast operator |
5235 | contained in its subtree. */ |
5236 | hold_current = dpi->current_template; |
5237 | dpi->current_template = dc; |
5238 | |
5239 | /* Don't push modifiers into a template definition. Doing so |
5240 | could give the wrong definition for a template argument. |
5241 | Instead, treat the template essentially as a name. */ |
5242 | |
5243 | hold_dpm = dpi->modifiers; |
5244 | dpi->modifiers = NULL; |
5245 | |
5246 | dcl = d_left (dc); |
5247 | |
5248 | if ((options & DMGL_JAVA) != 0 |
5249 | && dcl->type == DEMANGLE_COMPONENT_NAME |
5250 | && dcl->u.s_name.len == 6 |
5251 | && strncmp (s1: dcl->u.s_name.s, s2: "JArray" , n: 6) == 0) |
5252 | { |
5253 | /* Special-case Java arrays, so that JArray<TYPE> appears |
5254 | instead as TYPE[]. */ |
5255 | |
5256 | d_print_comp (dpi, options, d_right (dc)); |
5257 | d_append_string (dpi, s: "[]" ); |
5258 | } |
5259 | else |
5260 | { |
5261 | d_print_comp (dpi, options, dcl); |
5262 | if (d_last_char (dpi) == '<') |
5263 | d_append_char (dpi, c: ' '); |
5264 | d_append_char (dpi, c: '<'); |
5265 | d_print_comp (dpi, options, d_right (dc)); |
5266 | /* Avoid generating two consecutive '>' characters, to avoid |
5267 | the C++ syntactic ambiguity. */ |
5268 | if (d_last_char (dpi) == '>') |
5269 | d_append_char (dpi, c: ' '); |
5270 | d_append_char (dpi, c: '>'); |
5271 | } |
5272 | |
5273 | dpi->modifiers = hold_dpm; |
5274 | dpi->current_template = hold_current; |
5275 | |
5276 | return; |
5277 | } |
5278 | |
5279 | case DEMANGLE_COMPONENT_TEMPLATE_PARAM: |
5280 | if (dpi->lambda_tpl_parms > dc->u.s_number.number + 1) |
5281 | { |
5282 | const struct demangle_component *a |
5283 | = d_left (dpi->templates->template_decl); |
5284 | unsigned c; |
5285 | for (c = dc->u.s_number.number; a && c; c--) |
5286 | a = d_right (a); |
5287 | if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM) |
5288 | a = d_left (a); |
5289 | if (!a) |
5290 | dpi->demangle_failure = 1; |
5291 | else |
5292 | d_print_lambda_parm_name (dpi, type: a->type, index: dc->u.s_number.number); |
5293 | } |
5294 | else if (dpi->lambda_tpl_parms) |
5295 | { |
5296 | /* Show the template parm index, as that's how g++ displays |
5297 | these, and future proofs us against potential |
5298 | '[]<typename T> (T *a, T *b) {...}'. */ |
5299 | d_append_buffer (dpi, s: "auto:" , l: 5); |
5300 | d_append_num (dpi, l: dc->u.s_number.number + 1); |
5301 | } |
5302 | else |
5303 | { |
5304 | struct d_print_template *hold_dpt; |
5305 | struct demangle_component *a = d_lookup_template_argument (dpi, dc); |
5306 | |
5307 | if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) |
5308 | a = d_index_template_argument (args: a, i: dpi->pack_index); |
5309 | |
5310 | if (a == NULL) |
5311 | { |
5312 | d_print_error (dpi); |
5313 | return; |
5314 | } |
5315 | |
5316 | /* While processing this parameter, we need to pop the list |
5317 | of templates. This is because the template parameter may |
5318 | itself be a reference to a parameter of an outer |
5319 | template. */ |
5320 | |
5321 | hold_dpt = dpi->templates; |
5322 | dpi->templates = hold_dpt->next; |
5323 | |
5324 | d_print_comp (dpi, options, a); |
5325 | |
5326 | dpi->templates = hold_dpt; |
5327 | } |
5328 | return; |
5329 | |
5330 | case DEMANGLE_COMPONENT_TPARM_OBJ: |
5331 | d_append_string (dpi, s: "template parameter object for " ); |
5332 | d_print_comp (dpi, options, d_left (dc)); |
5333 | return; |
5334 | |
5335 | case DEMANGLE_COMPONENT_CTOR: |
5336 | d_print_comp (dpi, options, dc->u.s_ctor.name); |
5337 | return; |
5338 | |
5339 | case DEMANGLE_COMPONENT_DTOR: |
5340 | d_append_char (dpi, c: '~'); |
5341 | d_print_comp (dpi, options, dc->u.s_dtor.name); |
5342 | return; |
5343 | |
5344 | case DEMANGLE_COMPONENT_MODULE_INIT: |
5345 | d_append_string (dpi, s: "initializer for module " ); |
5346 | d_print_comp (dpi, options, d_left (dc)); |
5347 | return; |
5348 | |
5349 | case DEMANGLE_COMPONENT_VTABLE: |
5350 | d_append_string (dpi, s: "vtable for " ); |
5351 | d_print_comp (dpi, options, d_left (dc)); |
5352 | return; |
5353 | |
5354 | case DEMANGLE_COMPONENT_VTT: |
5355 | d_append_string (dpi, s: "VTT for " ); |
5356 | d_print_comp (dpi, options, d_left (dc)); |
5357 | return; |
5358 | |
5359 | case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE: |
5360 | d_append_string (dpi, s: "construction vtable for " ); |
5361 | d_print_comp (dpi, options, d_left (dc)); |
5362 | d_append_string (dpi, s: "-in-" ); |
5363 | d_print_comp (dpi, options, d_right (dc)); |
5364 | return; |
5365 | |
5366 | case DEMANGLE_COMPONENT_TYPEINFO: |
5367 | d_append_string (dpi, s: "typeinfo for " ); |
5368 | d_print_comp (dpi, options, d_left (dc)); |
5369 | return; |
5370 | |
5371 | case DEMANGLE_COMPONENT_TYPEINFO_NAME: |
5372 | d_append_string (dpi, s: "typeinfo name for " ); |
5373 | d_print_comp (dpi, options, d_left (dc)); |
5374 | return; |
5375 | |
5376 | case DEMANGLE_COMPONENT_TYPEINFO_FN: |
5377 | d_append_string (dpi, s: "typeinfo fn for " ); |
5378 | d_print_comp (dpi, options, d_left (dc)); |
5379 | return; |
5380 | |
5381 | case DEMANGLE_COMPONENT_THUNK: |
5382 | d_append_string (dpi, s: "non-virtual thunk to " ); |
5383 | d_print_comp (dpi, options, d_left (dc)); |
5384 | return; |
5385 | |
5386 | case DEMANGLE_COMPONENT_VIRTUAL_THUNK: |
5387 | d_append_string (dpi, s: "virtual thunk to " ); |
5388 | d_print_comp (dpi, options, d_left (dc)); |
5389 | return; |
5390 | |
5391 | case DEMANGLE_COMPONENT_COVARIANT_THUNK: |
5392 | d_append_string (dpi, s: "covariant return thunk to " ); |
5393 | d_print_comp (dpi, options, d_left (dc)); |
5394 | return; |
5395 | |
5396 | case DEMANGLE_COMPONENT_JAVA_CLASS: |
5397 | d_append_string (dpi, s: "java Class for " ); |
5398 | d_print_comp (dpi, options, d_left (dc)); |
5399 | return; |
5400 | |
5401 | case DEMANGLE_COMPONENT_GUARD: |
5402 | d_append_string (dpi, s: "guard variable for " ); |
5403 | d_print_comp (dpi, options, d_left (dc)); |
5404 | return; |
5405 | |
5406 | case DEMANGLE_COMPONENT_TLS_INIT: |
5407 | d_append_string (dpi, s: "TLS init function for " ); |
5408 | d_print_comp (dpi, options, d_left (dc)); |
5409 | return; |
5410 | |
5411 | case DEMANGLE_COMPONENT_TLS_WRAPPER: |
5412 | d_append_string (dpi, s: "TLS wrapper function for " ); |
5413 | d_print_comp (dpi, options, d_left (dc)); |
5414 | return; |
5415 | |
5416 | case DEMANGLE_COMPONENT_REFTEMP: |
5417 | d_append_string (dpi, s: "reference temporary #" ); |
5418 | d_print_comp (dpi, options, d_right (dc)); |
5419 | d_append_string (dpi, s: " for " ); |
5420 | d_print_comp (dpi, options, d_left (dc)); |
5421 | return; |
5422 | |
5423 | case DEMANGLE_COMPONENT_HIDDEN_ALIAS: |
5424 | d_append_string (dpi, s: "hidden alias for " ); |
5425 | d_print_comp (dpi, options, d_left (dc)); |
5426 | return; |
5427 | |
5428 | case DEMANGLE_COMPONENT_TRANSACTION_CLONE: |
5429 | d_append_string (dpi, s: "transaction clone for " ); |
5430 | d_print_comp (dpi, options, d_left (dc)); |
5431 | return; |
5432 | |
5433 | case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE: |
5434 | d_append_string (dpi, s: "non-transaction clone for " ); |
5435 | d_print_comp (dpi, options, d_left (dc)); |
5436 | return; |
5437 | |
5438 | case DEMANGLE_COMPONENT_SUB_STD: |
5439 | d_append_buffer (dpi, s: dc->u.s_string.string, l: dc->u.s_string.len); |
5440 | return; |
5441 | |
5442 | case DEMANGLE_COMPONENT_RESTRICT: |
5443 | case DEMANGLE_COMPONENT_VOLATILE: |
5444 | case DEMANGLE_COMPONENT_CONST: |
5445 | { |
5446 | struct d_print_mod *pdpm; |
5447 | |
5448 | /* When printing arrays, it's possible to have cases where the |
5449 | same CV-qualifier gets pushed on the stack multiple times. |
5450 | We only need to print it once. */ |
5451 | |
5452 | for (pdpm = dpi->modifiers; pdpm != NULL; pdpm = pdpm->next) |
5453 | { |
5454 | if (! pdpm->printed) |
5455 | { |
5456 | if (pdpm->mod->type != DEMANGLE_COMPONENT_RESTRICT |
5457 | && pdpm->mod->type != DEMANGLE_COMPONENT_VOLATILE |
5458 | && pdpm->mod->type != DEMANGLE_COMPONENT_CONST) |
5459 | break; |
5460 | if (pdpm->mod->type == dc->type) |
5461 | { |
5462 | d_print_comp (dpi, options, d_left (dc)); |
5463 | return; |
5464 | } |
5465 | } |
5466 | } |
5467 | } |
5468 | goto modifier; |
5469 | |
5470 | case DEMANGLE_COMPONENT_REFERENCE: |
5471 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE: |
5472 | { |
5473 | /* Handle reference smashing: & + && = &. */ |
5474 | struct demangle_component *sub = d_left (dc); |
5475 | if (!dpi->lambda_tpl_parms |
5476 | && sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM) |
5477 | { |
5478 | struct d_saved_scope *scope = d_get_saved_scope (dpi, container: sub); |
5479 | struct demangle_component *a; |
5480 | |
5481 | if (scope == NULL) |
5482 | { |
5483 | /* This is the first time SUB has been traversed. |
5484 | We need to capture the current templates so |
5485 | they can be restored if SUB is reentered as a |
5486 | substitution. */ |
5487 | d_save_scope (dpi, container: sub); |
5488 | if (d_print_saw_error (dpi)) |
5489 | return; |
5490 | } |
5491 | else |
5492 | { |
5493 | const struct d_component_stack *dcse; |
5494 | int found_self_or_parent = 0; |
5495 | |
5496 | /* This traversal is reentering SUB as a substition. |
5497 | If we are not beneath SUB or DC in the tree then we |
5498 | need to restore SUB's template stack temporarily. */ |
5499 | for (dcse = dpi->component_stack; dcse != NULL; |
5500 | dcse = dcse->parent) |
5501 | { |
5502 | if (dcse->dc == sub |
5503 | || (dcse->dc == dc |
5504 | && dcse != dpi->component_stack)) |
5505 | { |
5506 | found_self_or_parent = 1; |
5507 | break; |
5508 | } |
5509 | } |
5510 | |
5511 | if (!found_self_or_parent) |
5512 | { |
5513 | saved_templates = dpi->templates; |
5514 | dpi->templates = scope->templates; |
5515 | need_template_restore = 1; |
5516 | } |
5517 | } |
5518 | |
5519 | a = d_lookup_template_argument (dpi, dc: sub); |
5520 | if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST) |
5521 | a = d_index_template_argument (args: a, i: dpi->pack_index); |
5522 | |
5523 | if (a == NULL) |
5524 | { |
5525 | if (need_template_restore) |
5526 | dpi->templates = saved_templates; |
5527 | |
5528 | d_print_error (dpi); |
5529 | return; |
5530 | } |
5531 | |
5532 | sub = a; |
5533 | } |
5534 | |
5535 | if (sub->type == DEMANGLE_COMPONENT_REFERENCE |
5536 | || sub->type == dc->type) |
5537 | dc = sub; |
5538 | else if (sub->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE) |
5539 | mod_inner = d_left (sub); |
5540 | } |
5541 | /* Fall through. */ |
5542 | |
5543 | case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: |
5544 | case DEMANGLE_COMPONENT_POINTER: |
5545 | case DEMANGLE_COMPONENT_COMPLEX: |
5546 | case DEMANGLE_COMPONENT_IMAGINARY: |
5547 | FNQUAL_COMPONENT_CASE: |
5548 | modifier: |
5549 | { |
5550 | /* We keep a list of modifiers on the stack. */ |
5551 | struct d_print_mod dpm; |
5552 | |
5553 | dpm.next = dpi->modifiers; |
5554 | dpi->modifiers = &dpm; |
5555 | dpm.mod = dc; |
5556 | dpm.printed = 0; |
5557 | dpm.templates = dpi->templates; |
5558 | |
5559 | if (!mod_inner) |
5560 | mod_inner = d_left (dc); |
5561 | |
5562 | d_print_comp (dpi, options, mod_inner); |
5563 | |
5564 | /* If the modifier didn't get printed by the type, print it |
5565 | now. */ |
5566 | if (! dpm.printed) |
5567 | d_print_mod (dpi, options, dc); |
5568 | |
5569 | dpi->modifiers = dpm.next; |
5570 | |
5571 | if (need_template_restore) |
5572 | dpi->templates = saved_templates; |
5573 | |
5574 | return; |
5575 | } |
5576 | |
5577 | case DEMANGLE_COMPONENT_BUILTIN_TYPE: |
5578 | if ((options & DMGL_JAVA) == 0) |
5579 | d_append_buffer (dpi, s: dc->u.s_builtin.type->name, |
5580 | l: dc->u.s_builtin.type->len); |
5581 | else |
5582 | d_append_buffer (dpi, s: dc->u.s_builtin.type->java_name, |
5583 | l: dc->u.s_builtin.type->java_len); |
5584 | return; |
5585 | |
5586 | case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: |
5587 | d_append_buffer (dpi, s: dc->u.s_extended_builtin.type->name, |
5588 | l: dc->u.s_extended_builtin.type->len); |
5589 | d_append_num (dpi, l: dc->u.s_extended_builtin.arg); |
5590 | if (dc->u.s_extended_builtin.suffix) |
5591 | d_append_buffer (dpi, s: &dc->u.s_extended_builtin.suffix, l: 1); |
5592 | return; |
5593 | |
5594 | case DEMANGLE_COMPONENT_VENDOR_TYPE: |
5595 | d_print_comp (dpi, options, d_left (dc)); |
5596 | return; |
5597 | |
5598 | case DEMANGLE_COMPONENT_FUNCTION_TYPE: |
5599 | { |
5600 | if ((options & DMGL_RET_POSTFIX) != 0) |
5601 | d_print_function_type (dpi, |
5602 | options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), |
5603 | dc, dpi->modifiers); |
5604 | |
5605 | /* Print return type if present */ |
5606 | if (d_left (dc) != NULL && (options & DMGL_RET_POSTFIX) != 0) |
5607 | d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), |
5608 | d_left (dc)); |
5609 | else if (d_left (dc) != NULL && (options & DMGL_RET_DROP) == 0) |
5610 | { |
5611 | struct d_print_mod dpm; |
5612 | |
5613 | /* We must pass this type down as a modifier in order to |
5614 | print it in the right location. */ |
5615 | dpm.next = dpi->modifiers; |
5616 | dpi->modifiers = &dpm; |
5617 | dpm.mod = dc; |
5618 | dpm.printed = 0; |
5619 | dpm.templates = dpi->templates; |
5620 | |
5621 | d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), |
5622 | d_left (dc)); |
5623 | |
5624 | dpi->modifiers = dpm.next; |
5625 | |
5626 | if (dpm.printed) |
5627 | return; |
5628 | |
5629 | /* In standard prefix notation, there is a space between the |
5630 | return type and the function signature. */ |
5631 | if ((options & DMGL_RET_POSTFIX) == 0) |
5632 | d_append_char (dpi, c: ' '); |
5633 | } |
5634 | |
5635 | if ((options & DMGL_RET_POSTFIX) == 0) |
5636 | d_print_function_type (dpi, |
5637 | options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP), |
5638 | dc, dpi->modifiers); |
5639 | |
5640 | return; |
5641 | } |
5642 | |
5643 | case DEMANGLE_COMPONENT_ARRAY_TYPE: |
5644 | { |
5645 | struct d_print_mod *hold_modifiers; |
5646 | struct d_print_mod adpm[4]; |
5647 | unsigned int i; |
5648 | struct d_print_mod *pdpm; |
5649 | |
5650 | /* We must pass this type down as a modifier in order to print |
5651 | multi-dimensional arrays correctly. If the array itself is |
5652 | CV-qualified, we act as though the element type were |
5653 | CV-qualified. We do this by copying the modifiers down |
5654 | rather than fiddling pointers, so that we don't wind up |
5655 | with a d_print_mod higher on the stack pointing into our |
5656 | stack frame after we return. */ |
5657 | |
5658 | hold_modifiers = dpi->modifiers; |
5659 | |
5660 | adpm[0].next = hold_modifiers; |
5661 | dpi->modifiers = &adpm[0]; |
5662 | adpm[0].mod = dc; |
5663 | adpm[0].printed = 0; |
5664 | adpm[0].templates = dpi->templates; |
5665 | |
5666 | i = 1; |
5667 | pdpm = hold_modifiers; |
5668 | while (pdpm != NULL |
5669 | && (pdpm->mod->type == DEMANGLE_COMPONENT_RESTRICT |
5670 | || pdpm->mod->type == DEMANGLE_COMPONENT_VOLATILE |
5671 | || pdpm->mod->type == DEMANGLE_COMPONENT_CONST)) |
5672 | { |
5673 | if (! pdpm->printed) |
5674 | { |
5675 | if (i >= sizeof adpm / sizeof adpm[0]) |
5676 | { |
5677 | d_print_error (dpi); |
5678 | return; |
5679 | } |
5680 | |
5681 | adpm[i] = *pdpm; |
5682 | adpm[i].next = dpi->modifiers; |
5683 | dpi->modifiers = &adpm[i]; |
5684 | pdpm->printed = 1; |
5685 | ++i; |
5686 | } |
5687 | |
5688 | pdpm = pdpm->next; |
5689 | } |
5690 | |
5691 | d_print_comp (dpi, options, d_right (dc)); |
5692 | |
5693 | dpi->modifiers = hold_modifiers; |
5694 | |
5695 | if (adpm[0].printed) |
5696 | return; |
5697 | |
5698 | while (i > 1) |
5699 | { |
5700 | --i; |
5701 | d_print_mod (dpi, options, adpm[i].mod); |
5702 | } |
5703 | |
5704 | d_print_array_type (dpi, options, dc, dpi->modifiers); |
5705 | |
5706 | return; |
5707 | } |
5708 | |
5709 | case DEMANGLE_COMPONENT_PTRMEM_TYPE: |
5710 | case DEMANGLE_COMPONENT_VECTOR_TYPE: |
5711 | { |
5712 | struct d_print_mod dpm; |
5713 | |
5714 | dpm.next = dpi->modifiers; |
5715 | dpi->modifiers = &dpm; |
5716 | dpm.mod = dc; |
5717 | dpm.printed = 0; |
5718 | dpm.templates = dpi->templates; |
5719 | |
5720 | d_print_comp (dpi, options, d_right (dc)); |
5721 | |
5722 | /* If the modifier didn't get printed by the type, print it |
5723 | now. */ |
5724 | if (! dpm.printed) |
5725 | d_print_mod (dpi, options, dc); |
5726 | |
5727 | dpi->modifiers = dpm.next; |
5728 | |
5729 | return; |
5730 | } |
5731 | |
5732 | case DEMANGLE_COMPONENT_ARGLIST: |
5733 | case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: |
5734 | if (d_left (dc) != NULL) |
5735 | d_print_comp (dpi, options, d_left (dc)); |
5736 | if (d_right (dc) != NULL) |
5737 | { |
5738 | size_t len; |
5739 | unsigned long int flush_count; |
5740 | /* Make sure ", " isn't flushed by d_append_string, otherwise |
5741 | dpi->len -= 2 wouldn't work. */ |
5742 | if (dpi->len >= sizeof (dpi->buf) - 2) |
5743 | d_print_flush (dpi); |
5744 | d_append_string (dpi, s: ", " ); |
5745 | len = dpi->len; |
5746 | flush_count = dpi->flush_count; |
5747 | d_print_comp (dpi, options, d_right (dc)); |
5748 | /* If that didn't print anything (which can happen with empty |
5749 | template argument packs), remove the comma and space. */ |
5750 | if (dpi->flush_count == flush_count && dpi->len == len) |
5751 | dpi->len -= 2; |
5752 | } |
5753 | return; |
5754 | |
5755 | case DEMANGLE_COMPONENT_INITIALIZER_LIST: |
5756 | { |
5757 | struct demangle_component *type = d_left (dc); |
5758 | struct demangle_component *list = d_right (dc); |
5759 | |
5760 | if (type) |
5761 | d_print_comp (dpi, options, type); |
5762 | d_append_char (dpi, c: '{'); |
5763 | d_print_comp (dpi, options, list); |
5764 | d_append_char (dpi, c: '}'); |
5765 | } |
5766 | return; |
5767 | |
5768 | case DEMANGLE_COMPONENT_OPERATOR: |
5769 | { |
5770 | const struct demangle_operator_info *op = dc->u.s_operator.op; |
5771 | int len = op->len; |
5772 | |
5773 | d_append_string (dpi, s: "operator" ); |
5774 | /* Add a space before new/delete. */ |
5775 | if (IS_LOWER (op->name[0])) |
5776 | d_append_char (dpi, c: ' '); |
5777 | /* Omit a trailing space. */ |
5778 | if (op->name[len-1] == ' ') |
5779 | --len; |
5780 | d_append_buffer (dpi, s: op->name, l: len); |
5781 | return; |
5782 | } |
5783 | |
5784 | case DEMANGLE_COMPONENT_EXTENDED_OPERATOR: |
5785 | d_append_string (dpi, s: "operator " ); |
5786 | d_print_comp (dpi, options, dc->u.s_extended_operator.name); |
5787 | return; |
5788 | |
5789 | case DEMANGLE_COMPONENT_CONVERSION: |
5790 | d_append_string (dpi, s: "operator " ); |
5791 | d_print_conversion (dpi, options, dc); |
5792 | return; |
5793 | |
5794 | case DEMANGLE_COMPONENT_NULLARY: |
5795 | d_print_expr_op (dpi, options, d_left (dc)); |
5796 | return; |
5797 | |
5798 | case DEMANGLE_COMPONENT_UNARY: |
5799 | { |
5800 | struct demangle_component *op = d_left (dc); |
5801 | struct demangle_component *operand = d_right (dc); |
5802 | const char *code = NULL; |
5803 | |
5804 | if (op->type == DEMANGLE_COMPONENT_OPERATOR) |
5805 | { |
5806 | code = op->u.s_operator.op->code; |
5807 | if (!strcmp (s1: code, s2: "ad" )) |
5808 | { |
5809 | /* Don't print the argument list for the address of a |
5810 | function. */ |
5811 | if (operand->type == DEMANGLE_COMPONENT_TYPED_NAME |
5812 | && d_left (operand)->type == DEMANGLE_COMPONENT_QUAL_NAME |
5813 | && d_right (operand)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE) |
5814 | operand = d_left (operand); |
5815 | } |
5816 | if (operand->type == DEMANGLE_COMPONENT_BINARY_ARGS) |
5817 | { |
5818 | /* This indicates a suffix operator. */ |
5819 | operand = d_left (operand); |
5820 | d_print_subexpr (dpi, options, dc: operand); |
5821 | d_print_expr_op (dpi, options, op); |
5822 | return; |
5823 | } |
5824 | } |
5825 | |
5826 | /* For sizeof..., just print the pack length. */ |
5827 | if (code && !strcmp (s1: code, s2: "sZ" )) |
5828 | { |
5829 | struct demangle_component *a = d_find_pack (dpi, dc: operand); |
5830 | int len = d_pack_length (dc: a); |
5831 | d_append_num (dpi, l: len); |
5832 | return; |
5833 | } |
5834 | else if (code && !strcmp (s1: code, s2: "sP" )) |
5835 | { |
5836 | int len = d_args_length (dpi, dc: operand); |
5837 | d_append_num (dpi, l: len); |
5838 | return; |
5839 | } |
5840 | |
5841 | if (op->type != DEMANGLE_COMPONENT_CAST) |
5842 | d_print_expr_op (dpi, options, op); |
5843 | else |
5844 | { |
5845 | d_append_char (dpi, c: '('); |
5846 | d_print_cast (dpi, options, op); |
5847 | d_append_char (dpi, c: ')'); |
5848 | } |
5849 | if (code && !strcmp (s1: code, s2: "gs" )) |
5850 | /* Avoid parens after '::'. */ |
5851 | d_print_comp (dpi, options, operand); |
5852 | else if (code && (!strcmp (s1: code, s2: "st" ) || !strcmp (s1: code, s2: "nx" ))) |
5853 | /* Always print parens for sizeof (type) and noexcept(expr). */ |
5854 | { |
5855 | d_append_char (dpi, c: '('); |
5856 | d_print_comp (dpi, options, operand); |
5857 | d_append_char (dpi, c: ')'); |
5858 | } |
5859 | else |
5860 | d_print_subexpr (dpi, options, dc: operand); |
5861 | } |
5862 | return; |
5863 | |
5864 | case DEMANGLE_COMPONENT_BINARY: |
5865 | if (d_right (dc)->type != DEMANGLE_COMPONENT_BINARY_ARGS) |
5866 | { |
5867 | d_print_error (dpi); |
5868 | return; |
5869 | } |
5870 | |
5871 | if (op_is_new_cast (d_left (dc))) |
5872 | { |
5873 | d_print_expr_op (dpi, options, d_left (dc)); |
5874 | d_append_char (dpi, c: '<'); |
5875 | d_print_comp (dpi, options, d_left (d_right (dc))); |
5876 | d_append_string (dpi, s: ">(" ); |
5877 | d_print_comp (dpi, options, d_right (d_right (dc))); |
5878 | d_append_char (dpi, c: ')'); |
5879 | return; |
5880 | } |
5881 | |
5882 | if (d_maybe_print_fold_expression (dpi, options, dc)) |
5883 | return; |
5884 | |
5885 | if (d_maybe_print_designated_init (dpi, options, dc)) |
5886 | return; |
5887 | |
5888 | /* We wrap an expression which uses the greater-than operator in |
5889 | an extra layer of parens so that it does not get confused |
5890 | with the '>' which ends the template parameters. */ |
5891 | if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR |
5892 | && d_left (dc)->u.s_operator.op->len == 1 |
5893 | && d_left (dc)->u.s_operator.op->name[0] == '>') |
5894 | d_append_char (dpi, c: '('); |
5895 | |
5896 | if (strcmp (d_left (dc)->u.s_operator.op->code, s2: "cl" ) == 0 |
5897 | && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_TYPED_NAME) |
5898 | { |
5899 | /* Function call used in an expression should not have printed types |
5900 | of the function arguments. Values of the function arguments still |
5901 | get printed below. */ |
5902 | |
5903 | const struct demangle_component *func = d_left (d_right (dc)); |
5904 | |
5905 | if (d_right (func)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE) |
5906 | d_print_error (dpi); |
5907 | d_print_subexpr (dpi, options, d_left (func)); |
5908 | } |
5909 | else |
5910 | d_print_subexpr (dpi, options, d_left (d_right (dc))); |
5911 | if (strcmp (d_left (dc)->u.s_operator.op->code, s2: "ix" ) == 0) |
5912 | { |
5913 | d_append_char (dpi, c: '['); |
5914 | d_print_comp (dpi, options, d_right (d_right (dc))); |
5915 | d_append_char (dpi, c: ']'); |
5916 | } |
5917 | else |
5918 | { |
5919 | if (strcmp (d_left (dc)->u.s_operator.op->code, s2: "cl" ) != 0) |
5920 | d_print_expr_op (dpi, options, d_left (dc)); |
5921 | d_print_subexpr (dpi, options, d_right (d_right (dc))); |
5922 | } |
5923 | |
5924 | if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR |
5925 | && d_left (dc)->u.s_operator.op->len == 1 |
5926 | && d_left (dc)->u.s_operator.op->name[0] == '>') |
5927 | d_append_char (dpi, c: ')'); |
5928 | |
5929 | return; |
5930 | |
5931 | case DEMANGLE_COMPONENT_BINARY_ARGS: |
5932 | /* We should only see this as part of DEMANGLE_COMPONENT_BINARY. */ |
5933 | d_print_error (dpi); |
5934 | return; |
5935 | |
5936 | case DEMANGLE_COMPONENT_TRINARY: |
5937 | if (d_right (dc)->type != DEMANGLE_COMPONENT_TRINARY_ARG1 |
5938 | || d_right (d_right (dc))->type != DEMANGLE_COMPONENT_TRINARY_ARG2) |
5939 | { |
5940 | d_print_error (dpi); |
5941 | return; |
5942 | } |
5943 | if (d_maybe_print_fold_expression (dpi, options, dc)) |
5944 | return; |
5945 | if (d_maybe_print_designated_init (dpi, options, dc)) |
5946 | return; |
5947 | { |
5948 | struct demangle_component *op = d_left (dc); |
5949 | struct demangle_component *first = d_left (d_right (dc)); |
5950 | struct demangle_component *second = d_left (d_right (d_right (dc))); |
5951 | struct demangle_component *third = d_right (d_right (d_right (dc))); |
5952 | |
5953 | if (!strcmp (s1: op->u.s_operator.op->code, s2: "qu" )) |
5954 | { |
5955 | d_print_subexpr (dpi, options, dc: first); |
5956 | d_print_expr_op (dpi, options, op); |
5957 | d_print_subexpr (dpi, options, dc: second); |
5958 | d_append_string (dpi, s: " : " ); |
5959 | d_print_subexpr (dpi, options, dc: third); |
5960 | } |
5961 | else |
5962 | { |
5963 | d_append_string (dpi, s: "new " ); |
5964 | if (d_left (first) != NULL) |
5965 | { |
5966 | d_print_subexpr (dpi, options, dc: first); |
5967 | d_append_char (dpi, c: ' '); |
5968 | } |
5969 | d_print_comp (dpi, options, second); |
5970 | if (third) |
5971 | d_print_subexpr (dpi, options, dc: third); |
5972 | } |
5973 | } |
5974 | return; |
5975 | |
5976 | case DEMANGLE_COMPONENT_TRINARY_ARG1: |
5977 | case DEMANGLE_COMPONENT_TRINARY_ARG2: |
5978 | /* We should only see these are part of DEMANGLE_COMPONENT_TRINARY. */ |
5979 | d_print_error (dpi); |
5980 | return; |
5981 | |
5982 | case DEMANGLE_COMPONENT_LITERAL: |
5983 | case DEMANGLE_COMPONENT_LITERAL_NEG: |
5984 | { |
5985 | enum d_builtin_type_print tp; |
5986 | |
5987 | /* For some builtin types, produce simpler output. */ |
5988 | tp = D_PRINT_DEFAULT; |
5989 | if (d_left (dc)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE) |
5990 | { |
5991 | tp = d_left (dc)->u.s_builtin.type->print; |
5992 | switch (tp) |
5993 | { |
5994 | case D_PRINT_INT: |
5995 | case D_PRINT_UNSIGNED: |
5996 | case D_PRINT_LONG: |
5997 | case D_PRINT_UNSIGNED_LONG: |
5998 | case D_PRINT_LONG_LONG: |
5999 | case D_PRINT_UNSIGNED_LONG_LONG: |
6000 | if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME) |
6001 | { |
6002 | if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG) |
6003 | d_append_char (dpi, c: '-'); |
6004 | d_print_comp (dpi, options, d_right (dc)); |
6005 | switch (tp) |
6006 | { |
6007 | default: |
6008 | break; |
6009 | case D_PRINT_UNSIGNED: |
6010 | d_append_char (dpi, c: 'u'); |
6011 | break; |
6012 | case D_PRINT_LONG: |
6013 | d_append_char (dpi, c: 'l'); |
6014 | break; |
6015 | case D_PRINT_UNSIGNED_LONG: |
6016 | d_append_string (dpi, s: "ul" ); |
6017 | break; |
6018 | case D_PRINT_LONG_LONG: |
6019 | d_append_string (dpi, s: "ll" ); |
6020 | break; |
6021 | case D_PRINT_UNSIGNED_LONG_LONG: |
6022 | d_append_string (dpi, s: "ull" ); |
6023 | break; |
6024 | } |
6025 | return; |
6026 | } |
6027 | break; |
6028 | |
6029 | case D_PRINT_BOOL: |
6030 | if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME |
6031 | && d_right (dc)->u.s_name.len == 1 |
6032 | && dc->type == DEMANGLE_COMPONENT_LITERAL) |
6033 | { |
6034 | switch (d_right (dc)->u.s_name.s[0]) |
6035 | { |
6036 | case '0': |
6037 | d_append_string (dpi, s: "false" ); |
6038 | return; |
6039 | case '1': |
6040 | d_append_string (dpi, s: "true" ); |
6041 | return; |
6042 | default: |
6043 | break; |
6044 | } |
6045 | } |
6046 | break; |
6047 | |
6048 | default: |
6049 | break; |
6050 | } |
6051 | } |
6052 | |
6053 | d_append_char (dpi, c: '('); |
6054 | d_print_comp (dpi, options, d_left (dc)); |
6055 | d_append_char (dpi, c: ')'); |
6056 | if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG) |
6057 | d_append_char (dpi, c: '-'); |
6058 | if (tp == D_PRINT_FLOAT) |
6059 | d_append_char (dpi, c: '['); |
6060 | d_print_comp (dpi, options, d_right (dc)); |
6061 | if (tp == D_PRINT_FLOAT) |
6062 | d_append_char (dpi, c: ']'); |
6063 | } |
6064 | return; |
6065 | |
6066 | case DEMANGLE_COMPONENT_VENDOR_EXPR: |
6067 | d_print_comp (dpi, options, d_left (dc)); |
6068 | d_append_char (dpi, c: '('); |
6069 | d_print_comp (dpi, options, d_right (dc)); |
6070 | d_append_char (dpi, c: ')'); |
6071 | return; |
6072 | |
6073 | case DEMANGLE_COMPONENT_NUMBER: |
6074 | d_append_num (dpi, l: dc->u.s_number.number); |
6075 | return; |
6076 | |
6077 | case DEMANGLE_COMPONENT_JAVA_RESOURCE: |
6078 | d_append_string (dpi, s: "java resource " ); |
6079 | d_print_comp (dpi, options, d_left (dc)); |
6080 | return; |
6081 | |
6082 | case DEMANGLE_COMPONENT_COMPOUND_NAME: |
6083 | d_print_comp (dpi, options, d_left (dc)); |
6084 | d_print_comp (dpi, options, d_right (dc)); |
6085 | return; |
6086 | |
6087 | case DEMANGLE_COMPONENT_CHARACTER: |
6088 | d_append_char (dpi, c: dc->u.s_character.character); |
6089 | return; |
6090 | |
6091 | case DEMANGLE_COMPONENT_DECLTYPE: |
6092 | d_append_string (dpi, s: "decltype (" ); |
6093 | d_print_comp (dpi, options, d_left (dc)); |
6094 | d_append_char (dpi, c: ')'); |
6095 | return; |
6096 | |
6097 | case DEMANGLE_COMPONENT_PACK_EXPANSION: |
6098 | { |
6099 | struct demangle_component *a = NULL; |
6100 | |
6101 | if (!dpi->lambda_tpl_parms) |
6102 | a = d_find_pack (dpi, d_left (dc)); |
6103 | if (a == NULL) |
6104 | { |
6105 | /* d_find_pack won't find anything if the only packs involved |
6106 | in this expansion are function parameter packs; in that |
6107 | case, just print the pattern and "...". */ |
6108 | d_print_subexpr (dpi, options, d_left (dc)); |
6109 | d_append_string (dpi, s: "..." ); |
6110 | } |
6111 | else |
6112 | { |
6113 | int len = d_pack_length (dc: a); |
6114 | int i; |
6115 | |
6116 | dc = d_left (dc); |
6117 | for (i = 0; i < len; ++i) |
6118 | { |
6119 | if (i) |
6120 | d_append_string (dpi, s: ", " ); |
6121 | dpi->pack_index = i; |
6122 | d_print_comp (dpi, options, dc); |
6123 | } |
6124 | } |
6125 | } |
6126 | return; |
6127 | |
6128 | case DEMANGLE_COMPONENT_FUNCTION_PARAM: |
6129 | { |
6130 | long num = dc->u.s_number.number; |
6131 | if (num == 0) |
6132 | d_append_string (dpi, s: "this" ); |
6133 | else |
6134 | { |
6135 | d_append_string (dpi, s: "{parm#" ); |
6136 | d_append_num (dpi, l: num); |
6137 | d_append_char (dpi, c: '}'); |
6138 | } |
6139 | } |
6140 | return; |
6141 | |
6142 | case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS: |
6143 | d_append_string (dpi, s: "global constructors keyed to " ); |
6144 | d_print_comp (dpi, options, dc->u.s_binary.left); |
6145 | return; |
6146 | |
6147 | case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS: |
6148 | d_append_string (dpi, s: "global destructors keyed to " ); |
6149 | d_print_comp (dpi, options, dc->u.s_binary.left); |
6150 | return; |
6151 | |
6152 | case DEMANGLE_COMPONENT_LAMBDA: |
6153 | { |
6154 | d_append_string (dpi, s: "{lambda" ); |
6155 | struct demangle_component *parms = dc->u.s_unary_num.sub; |
6156 | struct d_print_template dpt; |
6157 | /* Generic lambda auto parms are mangled as the (synthedic) template |
6158 | type parm they are. We need to tell the printer that (a) we're in |
6159 | a lambda, and (b) the number of synthetic parms. */ |
6160 | int saved_tpl_parms = dpi->lambda_tpl_parms; |
6161 | dpi->lambda_tpl_parms = 0; |
6162 | /* Hang any lambda head as-if template args. */ |
6163 | dpt.template_decl = NULL; |
6164 | dpt.next = dpi->templates; |
6165 | dpi->templates = &dpt; |
6166 | if (parms && parms->type == DEMANGLE_COMPONENT_TEMPLATE_HEAD) |
6167 | { |
6168 | dpt.template_decl = parms; |
6169 | |
6170 | d_append_char (dpi, c: '<'); |
6171 | struct demangle_component *parm; |
6172 | for (parm = d_left (parms); parm; parm = d_right (parm)) |
6173 | { |
6174 | if (dpi->lambda_tpl_parms++) |
6175 | d_append_string (dpi, s: ", " ); |
6176 | d_print_comp (dpi, options, parm); |
6177 | d_append_char (dpi, c: ' '); |
6178 | if (parm->type == DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM) |
6179 | parm = d_left (parm); |
6180 | d_print_lambda_parm_name (dpi, type: parm->type, |
6181 | index: dpi->lambda_tpl_parms - 1); |
6182 | } |
6183 | d_append_char (dpi, c: '>'); |
6184 | |
6185 | parms = d_right (parms); |
6186 | } |
6187 | dpi->lambda_tpl_parms++; |
6188 | |
6189 | d_append_char (dpi, c: '('); |
6190 | d_print_comp (dpi, options, parms); |
6191 | dpi->lambda_tpl_parms = saved_tpl_parms; |
6192 | dpi->templates = dpt.next; |
6193 | d_append_string (dpi, s: ")#" ); |
6194 | d_append_num (dpi, l: dc->u.s_unary_num.num + 1); |
6195 | d_append_char (dpi, c: '}'); |
6196 | } |
6197 | return; |
6198 | |
6199 | case DEMANGLE_COMPONENT_UNNAMED_TYPE: |
6200 | d_append_string (dpi, s: "{unnamed type#" ); |
6201 | d_append_num (dpi, l: dc->u.s_number.number + 1); |
6202 | d_append_char (dpi, c: '}'); |
6203 | return; |
6204 | |
6205 | case DEMANGLE_COMPONENT_CLONE: |
6206 | d_print_comp (dpi, options, d_left (dc)); |
6207 | d_append_string (dpi, s: " [clone " ); |
6208 | d_print_comp (dpi, options, d_right (dc)); |
6209 | d_append_char (dpi, c: ']'); |
6210 | return; |
6211 | |
6212 | case DEMANGLE_COMPONENT_FRIEND: |
6213 | d_print_comp (dpi, options, d_left (dc)); |
6214 | d_append_string (dpi, s: "[friend]" ); |
6215 | return; |
6216 | |
6217 | case DEMANGLE_COMPONENT_TEMPLATE_HEAD: |
6218 | { |
6219 | d_append_char (dpi, c: '<'); |
6220 | int count = 0; |
6221 | struct demangle_component *parm; |
6222 | for (parm = d_left (dc); parm; parm = d_right (parm)) |
6223 | { |
6224 | if (count++) |
6225 | d_append_string (dpi, s: ", " ); |
6226 | d_print_comp (dpi, options, parm); |
6227 | } |
6228 | d_append_char (dpi, c: '>'); |
6229 | } |
6230 | return; |
6231 | |
6232 | case DEMANGLE_COMPONENT_TEMPLATE_TYPE_PARM: |
6233 | d_append_string (dpi, s: "typename" ); |
6234 | return; |
6235 | |
6236 | case DEMANGLE_COMPONENT_TEMPLATE_NON_TYPE_PARM: |
6237 | d_print_comp (dpi, options, d_left (dc)); |
6238 | return; |
6239 | |
6240 | case DEMANGLE_COMPONENT_TEMPLATE_TEMPLATE_PARM: |
6241 | d_append_string (dpi, s: "template" ); |
6242 | d_print_comp (dpi, options, d_left (dc)); |
6243 | d_append_string (dpi, s: " class" ); |
6244 | return; |
6245 | |
6246 | case DEMANGLE_COMPONENT_TEMPLATE_PACK_PARM: |
6247 | d_print_comp (dpi, options, d_left (dc)); |
6248 | d_append_string (dpi, s: "..." ); |
6249 | return; |
6250 | |
6251 | default: |
6252 | d_print_error (dpi); |
6253 | return; |
6254 | } |
6255 | } |
6256 | |
6257 | static void |
6258 | d_print_comp (struct d_print_info *dpi, int options, |
6259 | struct demangle_component *dc) |
6260 | { |
6261 | struct d_component_stack self; |
6262 | if (dc == NULL || dc->d_printing > 1 || dpi->recursion > MAX_RECURSION_COUNT) |
6263 | { |
6264 | d_print_error (dpi); |
6265 | return; |
6266 | } |
6267 | |
6268 | dc->d_printing++; |
6269 | dpi->recursion++; |
6270 | |
6271 | self.dc = dc; |
6272 | self.parent = dpi->component_stack; |
6273 | dpi->component_stack = &self; |
6274 | |
6275 | d_print_comp_inner (dpi, options, dc); |
6276 | |
6277 | dpi->component_stack = self.parent; |
6278 | dc->d_printing--; |
6279 | dpi->recursion--; |
6280 | } |
6281 | |
6282 | /* Print a Java dentifier. For Java we try to handle encoded extended |
6283 | Unicode characters. The C++ ABI doesn't mention Unicode encoding, |
6284 | so we don't it for C++. Characters are encoded as |
6285 | __U<hex-char>+_. */ |
6286 | |
6287 | static void |
6288 | d_print_java_identifier (struct d_print_info *dpi, const char *name, int len) |
6289 | { |
6290 | const char *p; |
6291 | const char *end; |
6292 | |
6293 | end = name + len; |
6294 | for (p = name; p < end; ++p) |
6295 | { |
6296 | if (end - p > 3 |
6297 | && p[0] == '_' |
6298 | && p[1] == '_' |
6299 | && p[2] == 'U') |
6300 | { |
6301 | unsigned long c; |
6302 | const char *q; |
6303 | |
6304 | c = 0; |
6305 | for (q = p + 3; q < end; ++q) |
6306 | { |
6307 | int dig; |
6308 | |
6309 | if (IS_DIGIT (*q)) |
6310 | dig = *q - '0'; |
6311 | else if (*q >= 'A' && *q <= 'F') |
6312 | dig = *q - 'A' + 10; |
6313 | else if (*q >= 'a' && *q <= 'f') |
6314 | dig = *q - 'a' + 10; |
6315 | else |
6316 | break; |
6317 | |
6318 | c = c * 16 + dig; |
6319 | } |
6320 | /* If the Unicode character is larger than 256, we don't try |
6321 | to deal with it here. FIXME. */ |
6322 | if (q < end && *q == '_' && c < 256) |
6323 | { |
6324 | d_append_char (dpi, c); |
6325 | p = q; |
6326 | continue; |
6327 | } |
6328 | } |
6329 | |
6330 | d_append_char (dpi, c: *p); |
6331 | } |
6332 | } |
6333 | |
6334 | /* Print a list of modifiers. SUFFIX is 1 if we are printing |
6335 | qualifiers on this after printing a function. */ |
6336 | |
6337 | static void |
6338 | d_print_mod_list (struct d_print_info *dpi, int options, |
6339 | struct d_print_mod *mods, int suffix) |
6340 | { |
6341 | struct d_print_template *hold_dpt; |
6342 | |
6343 | if (mods == NULL || d_print_saw_error (dpi)) |
6344 | return; |
6345 | |
6346 | if (mods->printed |
6347 | || (! suffix |
6348 | && (is_fnqual_component_type (type: mods->mod->type)))) |
6349 | { |
6350 | d_print_mod_list (dpi, options, mods: mods->next, suffix); |
6351 | return; |
6352 | } |
6353 | |
6354 | mods->printed = 1; |
6355 | |
6356 | hold_dpt = dpi->templates; |
6357 | dpi->templates = mods->templates; |
6358 | |
6359 | if (mods->mod->type == DEMANGLE_COMPONENT_FUNCTION_TYPE) |
6360 | { |
6361 | d_print_function_type (dpi, options, mods->mod, mods->next); |
6362 | dpi->templates = hold_dpt; |
6363 | return; |
6364 | } |
6365 | else if (mods->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE) |
6366 | { |
6367 | d_print_array_type (dpi, options, mods->mod, mods->next); |
6368 | dpi->templates = hold_dpt; |
6369 | return; |
6370 | } |
6371 | else if (mods->mod->type == DEMANGLE_COMPONENT_LOCAL_NAME) |
6372 | { |
6373 | struct d_print_mod *hold_modifiers; |
6374 | struct demangle_component *dc; |
6375 | |
6376 | /* When this is on the modifier stack, we have pulled any |
6377 | qualifiers off the right argument already. Otherwise, we |
6378 | print it as usual, but don't let the left argument see any |
6379 | modifiers. */ |
6380 | |
6381 | hold_modifiers = dpi->modifiers; |
6382 | dpi->modifiers = NULL; |
6383 | d_print_comp (dpi, options, d_left (mods->mod)); |
6384 | dpi->modifiers = hold_modifiers; |
6385 | |
6386 | if ((options & DMGL_JAVA) == 0) |
6387 | d_append_string (dpi, s: "::" ); |
6388 | else |
6389 | d_append_char (dpi, c: '.'); |
6390 | |
6391 | dc = d_right (mods->mod); |
6392 | |
6393 | if (dc->type == DEMANGLE_COMPONENT_DEFAULT_ARG) |
6394 | { |
6395 | d_append_string (dpi, s: "{default arg#" ); |
6396 | d_append_num (dpi, l: dc->u.s_unary_num.num + 1); |
6397 | d_append_string (dpi, s: "}::" ); |
6398 | dc = dc->u.s_unary_num.sub; |
6399 | } |
6400 | |
6401 | while (is_fnqual_component_type (type: dc->type)) |
6402 | dc = d_left (dc); |
6403 | |
6404 | d_print_comp (dpi, options, dc); |
6405 | |
6406 | dpi->templates = hold_dpt; |
6407 | return; |
6408 | } |
6409 | |
6410 | d_print_mod (dpi, options, mods->mod); |
6411 | |
6412 | dpi->templates = hold_dpt; |
6413 | |
6414 | d_print_mod_list (dpi, options, mods: mods->next, suffix); |
6415 | } |
6416 | |
6417 | /* Print a modifier. */ |
6418 | |
6419 | static void |
6420 | d_print_mod (struct d_print_info *dpi, int options, |
6421 | struct demangle_component *mod) |
6422 | { |
6423 | switch (mod->type) |
6424 | { |
6425 | case DEMANGLE_COMPONENT_RESTRICT: |
6426 | case DEMANGLE_COMPONENT_RESTRICT_THIS: |
6427 | d_append_string (dpi, s: " restrict" ); |
6428 | return; |
6429 | case DEMANGLE_COMPONENT_VOLATILE: |
6430 | case DEMANGLE_COMPONENT_VOLATILE_THIS: |
6431 | d_append_string (dpi, s: " volatile" ); |
6432 | return; |
6433 | case DEMANGLE_COMPONENT_CONST: |
6434 | case DEMANGLE_COMPONENT_CONST_THIS: |
6435 | d_append_string (dpi, s: " const" ); |
6436 | return; |
6437 | case DEMANGLE_COMPONENT_TRANSACTION_SAFE: |
6438 | d_append_string (dpi, s: " transaction_safe" ); |
6439 | return; |
6440 | case DEMANGLE_COMPONENT_NOEXCEPT: |
6441 | d_append_string (dpi, s: " noexcept" ); |
6442 | if (d_right (mod)) |
6443 | { |
6444 | d_append_char (dpi, c: '('); |
6445 | d_print_comp (dpi, options, d_right (mod)); |
6446 | d_append_char (dpi, c: ')'); |
6447 | } |
6448 | return; |
6449 | case DEMANGLE_COMPONENT_THROW_SPEC: |
6450 | d_append_string (dpi, s: " throw" ); |
6451 | if (d_right (mod)) |
6452 | { |
6453 | d_append_char (dpi, c: '('); |
6454 | d_print_comp (dpi, options, d_right (mod)); |
6455 | d_append_char (dpi, c: ')'); |
6456 | } |
6457 | return; |
6458 | case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: |
6459 | d_append_char (dpi, c: ' '); |
6460 | d_print_comp (dpi, options, d_right (mod)); |
6461 | return; |
6462 | case DEMANGLE_COMPONENT_POINTER: |
6463 | /* There is no pointer symbol in Java. */ |
6464 | if ((options & DMGL_JAVA) == 0) |
6465 | d_append_char (dpi, c: '*'); |
6466 | return; |
6467 | case DEMANGLE_COMPONENT_REFERENCE_THIS: |
6468 | /* For the ref-qualifier, put a space before the &. */ |
6469 | d_append_char (dpi, c: ' '); |
6470 | /* FALLTHRU */ |
6471 | case DEMANGLE_COMPONENT_REFERENCE: |
6472 | d_append_char (dpi, c: '&'); |
6473 | return; |
6474 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: |
6475 | d_append_char (dpi, c: ' '); |
6476 | /* FALLTHRU */ |
6477 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE: |
6478 | d_append_string (dpi, s: "&&" ); |
6479 | return; |
6480 | case DEMANGLE_COMPONENT_COMPLEX: |
6481 | d_append_string (dpi, s: " _Complex" ); |
6482 | return; |
6483 | case DEMANGLE_COMPONENT_IMAGINARY: |
6484 | d_append_string (dpi, s: " _Imaginary" ); |
6485 | return; |
6486 | case DEMANGLE_COMPONENT_PTRMEM_TYPE: |
6487 | if (d_last_char (dpi) != '(') |
6488 | d_append_char (dpi, c: ' '); |
6489 | d_print_comp (dpi, options, d_left (mod)); |
6490 | d_append_string (dpi, s: "::*" ); |
6491 | return; |
6492 | case DEMANGLE_COMPONENT_TYPED_NAME: |
6493 | d_print_comp (dpi, options, d_left (mod)); |
6494 | return; |
6495 | case DEMANGLE_COMPONENT_VECTOR_TYPE: |
6496 | d_append_string (dpi, s: " __vector(" ); |
6497 | d_print_comp (dpi, options, d_left (mod)); |
6498 | d_append_char (dpi, c: ')'); |
6499 | return; |
6500 | |
6501 | default: |
6502 | /* Otherwise, we have something that won't go back on the |
6503 | modifier stack, so we can just print it. */ |
6504 | d_print_comp (dpi, options, dc: mod); |
6505 | return; |
6506 | } |
6507 | } |
6508 | |
6509 | /* Print a function type, except for the return type. */ |
6510 | |
6511 | static void |
6512 | d_print_function_type (struct d_print_info *dpi, int options, |
6513 | struct demangle_component *dc, |
6514 | struct d_print_mod *mods) |
6515 | { |
6516 | int need_paren; |
6517 | int need_space; |
6518 | struct d_print_mod *p; |
6519 | struct d_print_mod *hold_modifiers; |
6520 | |
6521 | need_paren = 0; |
6522 | need_space = 0; |
6523 | for (p = mods; p != NULL; p = p->next) |
6524 | { |
6525 | if (p->printed) |
6526 | break; |
6527 | |
6528 | switch (p->mod->type) |
6529 | { |
6530 | case DEMANGLE_COMPONENT_POINTER: |
6531 | case DEMANGLE_COMPONENT_REFERENCE: |
6532 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE: |
6533 | need_paren = 1; |
6534 | break; |
6535 | case DEMANGLE_COMPONENT_RESTRICT: |
6536 | case DEMANGLE_COMPONENT_VOLATILE: |
6537 | case DEMANGLE_COMPONENT_CONST: |
6538 | case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: |
6539 | case DEMANGLE_COMPONENT_COMPLEX: |
6540 | case DEMANGLE_COMPONENT_IMAGINARY: |
6541 | case DEMANGLE_COMPONENT_PTRMEM_TYPE: |
6542 | need_space = 1; |
6543 | need_paren = 1; |
6544 | break; |
6545 | FNQUAL_COMPONENT_CASE: |
6546 | break; |
6547 | default: |
6548 | break; |
6549 | } |
6550 | if (need_paren) |
6551 | break; |
6552 | } |
6553 | |
6554 | if (need_paren) |
6555 | { |
6556 | if (! need_space) |
6557 | { |
6558 | if (d_last_char (dpi) != '(' |
6559 | && d_last_char (dpi) != '*') |
6560 | need_space = 1; |
6561 | } |
6562 | if (need_space && d_last_char (dpi) != ' ') |
6563 | d_append_char (dpi, c: ' '); |
6564 | d_append_char (dpi, c: '('); |
6565 | } |
6566 | |
6567 | hold_modifiers = dpi->modifiers; |
6568 | dpi->modifiers = NULL; |
6569 | |
6570 | d_print_mod_list (dpi, options, mods, suffix: 0); |
6571 | |
6572 | if (need_paren) |
6573 | d_append_char (dpi, c: ')'); |
6574 | |
6575 | d_append_char (dpi, c: '('); |
6576 | |
6577 | if (d_right (dc) != NULL) |
6578 | d_print_comp (dpi, options, d_right (dc)); |
6579 | |
6580 | d_append_char (dpi, c: ')'); |
6581 | |
6582 | d_print_mod_list (dpi, options, mods, suffix: 1); |
6583 | |
6584 | dpi->modifiers = hold_modifiers; |
6585 | } |
6586 | |
6587 | /* Print an array type, except for the element type. */ |
6588 | |
6589 | static void |
6590 | d_print_array_type (struct d_print_info *dpi, int options, |
6591 | struct demangle_component *dc, |
6592 | struct d_print_mod *mods) |
6593 | { |
6594 | int need_space; |
6595 | |
6596 | need_space = 1; |
6597 | if (mods != NULL) |
6598 | { |
6599 | int need_paren; |
6600 | struct d_print_mod *p; |
6601 | |
6602 | need_paren = 0; |
6603 | for (p = mods; p != NULL; p = p->next) |
6604 | { |
6605 | if (! p->printed) |
6606 | { |
6607 | if (p->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE) |
6608 | { |
6609 | need_space = 0; |
6610 | break; |
6611 | } |
6612 | else |
6613 | { |
6614 | need_paren = 1; |
6615 | need_space = 1; |
6616 | break; |
6617 | } |
6618 | } |
6619 | } |
6620 | |
6621 | if (need_paren) |
6622 | d_append_string (dpi, s: " (" ); |
6623 | |
6624 | d_print_mod_list (dpi, options, mods, suffix: 0); |
6625 | |
6626 | if (need_paren) |
6627 | d_append_char (dpi, c: ')'); |
6628 | } |
6629 | |
6630 | if (need_space) |
6631 | d_append_char (dpi, c: ' '); |
6632 | |
6633 | d_append_char (dpi, c: '['); |
6634 | |
6635 | if (d_left (dc) != NULL) |
6636 | d_print_comp (dpi, options, d_left (dc)); |
6637 | |
6638 | d_append_char (dpi, c: ']'); |
6639 | } |
6640 | |
6641 | /* Print an operator in an expression. */ |
6642 | |
6643 | static void |
6644 | d_print_expr_op (struct d_print_info *dpi, int options, |
6645 | struct demangle_component *dc) |
6646 | { |
6647 | if (dc->type == DEMANGLE_COMPONENT_OPERATOR) |
6648 | d_append_buffer (dpi, s: dc->u.s_operator.op->name, |
6649 | l: dc->u.s_operator.op->len); |
6650 | else |
6651 | d_print_comp (dpi, options, dc); |
6652 | } |
6653 | |
6654 | /* Print a cast. */ |
6655 | |
6656 | static void |
6657 | d_print_cast (struct d_print_info *dpi, int options, |
6658 | struct demangle_component *dc) |
6659 | { |
6660 | d_print_comp (dpi, options, d_left (dc)); |
6661 | } |
6662 | |
6663 | /* Print a conversion operator. */ |
6664 | |
6665 | static void |
6666 | d_print_conversion (struct d_print_info *dpi, int options, |
6667 | struct demangle_component *dc) |
6668 | { |
6669 | struct d_print_template dpt; |
6670 | |
6671 | /* For a conversion operator, we need the template parameters from |
6672 | the enclosing template in scope for processing the type. */ |
6673 | if (dpi->current_template != NULL) |
6674 | { |
6675 | dpt.next = dpi->templates; |
6676 | dpi->templates = &dpt; |
6677 | dpt.template_decl = dpi->current_template; |
6678 | } |
6679 | |
6680 | d_print_comp (dpi, options, d_left (dc)); |
6681 | |
6682 | if (dpi->current_template != NULL) |
6683 | dpi->templates = dpt.next; |
6684 | } |
6685 | |
6686 | /* Initialize the information structure we use to pass around |
6687 | information. */ |
6688 | |
6689 | CP_STATIC_IF_GLIBCPP_V3 |
6690 | void |
6691 | cplus_demangle_init_info (const char *mangled, int options, size_t len, |
6692 | struct d_info *di) |
6693 | { |
6694 | di->s = mangled; |
6695 | di->send = mangled + len; |
6696 | di->options = options; |
6697 | |
6698 | di->n = mangled; |
6699 | |
6700 | /* We cannot need more components than twice the number of chars in |
6701 | the mangled string. Most components correspond directly to |
6702 | chars, but the ARGLIST types are exceptions. */ |
6703 | di->num_comps = 2 * len; |
6704 | di->next_comp = 0; |
6705 | |
6706 | /* Similarly, we cannot need more substitutions than there are |
6707 | chars in the mangled string. */ |
6708 | di->num_subs = len; |
6709 | di->next_sub = 0; |
6710 | |
6711 | di->last_name = NULL; |
6712 | |
6713 | di->expansion = 0; |
6714 | di->is_expression = 0; |
6715 | di->is_conversion = 0; |
6716 | di->recursion_level = 0; |
6717 | } |
6718 | |
6719 | /* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI |
6720 | mangled name, return strings in repeated callback giving the demangled |
6721 | name. OPTIONS is the usual libiberty demangler options. On success, |
6722 | this returns 1. On failure, returns 0. */ |
6723 | |
6724 | static int |
6725 | d_demangle_callback (const char *mangled, int options, |
6726 | demangle_callbackref callback, void *opaque) |
6727 | { |
6728 | enum |
6729 | { |
6730 | DCT_TYPE, |
6731 | DCT_MANGLED, |
6732 | DCT_GLOBAL_CTORS, |
6733 | DCT_GLOBAL_DTORS |
6734 | } |
6735 | type; |
6736 | struct d_info di; |
6737 | struct demangle_component *dc; |
6738 | int status; |
6739 | |
6740 | if (mangled[0] == '_' && mangled[1] == 'Z') |
6741 | type = DCT_MANGLED; |
6742 | else if (strncmp (s1: mangled, s2: "_GLOBAL_" , n: 8) == 0 |
6743 | && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$') |
6744 | && (mangled[9] == 'D' || mangled[9] == 'I') |
6745 | && mangled[10] == '_') |
6746 | type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS; |
6747 | else |
6748 | { |
6749 | if ((options & DMGL_TYPES) == 0) |
6750 | return 0; |
6751 | type = DCT_TYPE; |
6752 | } |
6753 | |
6754 | di.unresolved_name_state = 1; |
6755 | |
6756 | again: |
6757 | cplus_demangle_init_info (mangled, options, len: strlen (s: mangled), di: &di); |
6758 | |
6759 | /* PR 87675 - Check for a mangled string that is so long |
6760 | that we do not have enough stack space to demangle it. */ |
6761 | if (((options & DMGL_NO_RECURSE_LIMIT) == 0) |
6762 | /* This check is a bit arbitrary, since what we really want to do is to |
6763 | compare the sizes of the di.comps and di.subs arrays against the |
6764 | amount of stack space remaining. But there is no portable way to do |
6765 | this, so instead we use the recursion limit as a guide to the maximum |
6766 | size of the arrays. */ |
6767 | && (unsigned long) di.num_comps > DEMANGLE_RECURSION_LIMIT) |
6768 | { |
6769 | /* FIXME: We need a way to indicate that a stack limit has been reached. */ |
6770 | return 0; |
6771 | } |
6772 | |
6773 | { |
6774 | #ifdef CP_DYNAMIC_ARRAYS |
6775 | __extension__ struct demangle_component comps[di.num_comps]; |
6776 | __extension__ struct demangle_component *subs[di.num_subs]; |
6777 | |
6778 | di.comps = comps; |
6779 | di.subs = subs; |
6780 | #else |
6781 | di.comps = alloca (di.num_comps * sizeof (*di.comps)); |
6782 | di.subs = alloca (di.num_subs * sizeof (*di.subs)); |
6783 | #endif |
6784 | |
6785 | switch (type) |
6786 | { |
6787 | case DCT_TYPE: |
6788 | dc = cplus_demangle_type (di: &di); |
6789 | break; |
6790 | case DCT_MANGLED: |
6791 | dc = cplus_demangle_mangled_name (di: &di, top_level: 1); |
6792 | break; |
6793 | case DCT_GLOBAL_CTORS: |
6794 | case DCT_GLOBAL_DTORS: |
6795 | d_advance (&di, 11); |
6796 | dc = d_make_comp (di: &di, |
6797 | type: (type == DCT_GLOBAL_CTORS |
6798 | ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS |
6799 | : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS), |
6800 | left: d_make_demangle_mangled_name (di: &di, d_str (&di)), |
6801 | NULL); |
6802 | d_advance (&di, strlen (d_str (&di))); |
6803 | break; |
6804 | default: |
6805 | abort (); /* We have listed all the cases. */ |
6806 | } |
6807 | |
6808 | /* If DMGL_PARAMS is set, then if we didn't consume the entire |
6809 | mangled string, then we didn't successfully demangle it. If |
6810 | DMGL_PARAMS is not set, we didn't look at the trailing |
6811 | parameters. */ |
6812 | if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0') |
6813 | dc = NULL; |
6814 | |
6815 | /* See discussion in d_unresolved_name. */ |
6816 | if (dc == NULL && di.unresolved_name_state == -1) |
6817 | { |
6818 | di.unresolved_name_state = 0; |
6819 | goto again; |
6820 | } |
6821 | |
6822 | #ifdef CP_DEMANGLE_DEBUG |
6823 | d_dump (dc, 0); |
6824 | #endif |
6825 | |
6826 | status = (dc != NULL) |
6827 | ? cplus_demangle_print_callback (options, dc, callback, opaque) |
6828 | : 0; |
6829 | } |
6830 | |
6831 | return status; |
6832 | } |
6833 | |
6834 | /* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled |
6835 | name, return a buffer allocated with malloc holding the demangled |
6836 | name. OPTIONS is the usual libiberty demangler options. On |
6837 | success, this sets *PALC to the allocated size of the returned |
6838 | buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for |
6839 | a memory allocation failure, and returns NULL. */ |
6840 | |
6841 | static char * |
6842 | d_demangle (const char *mangled, int options, size_t *palc) |
6843 | { |
6844 | struct d_growable_string dgs; |
6845 | int status; |
6846 | |
6847 | d_growable_string_init (dgs: &dgs, estimate: 0); |
6848 | |
6849 | status = d_demangle_callback (mangled, options, |
6850 | callback: d_growable_string_callback_adapter, opaque: &dgs); |
6851 | if (status == 0) |
6852 | { |
6853 | free (ptr: dgs.buf); |
6854 | *palc = 0; |
6855 | return NULL; |
6856 | } |
6857 | |
6858 | *palc = dgs.allocation_failure ? 1 : dgs.alc; |
6859 | return dgs.buf; |
6860 | } |
6861 | |
6862 | #if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3) |
6863 | |
6864 | extern char *__cxa_demangle (const char *, char *, size_t *, int *); |
6865 | |
6866 | /* ia64 ABI-mandated entry point in the C++ runtime library for |
6867 | performing demangling. MANGLED_NAME is a NUL-terminated character |
6868 | string containing the name to be demangled. |
6869 | |
6870 | OUTPUT_BUFFER is a region of memory, allocated with malloc, of |
6871 | *LENGTH bytes, into which the demangled name is stored. If |
6872 | OUTPUT_BUFFER is not long enough, it is expanded using realloc. |
6873 | OUTPUT_BUFFER may instead be NULL; in that case, the demangled name |
6874 | is placed in a region of memory allocated with malloc. |
6875 | |
6876 | If LENGTH is non-NULL, the length of the buffer containing the |
6877 | demangled name, is placed in *LENGTH. |
6878 | |
6879 | The return value is a pointer to the start of the NUL-terminated |
6880 | demangled name, or NULL if the demangling fails. The caller is |
6881 | responsible for deallocating this memory using free. |
6882 | |
6883 | *STATUS is set to one of the following values: |
6884 | 0: The demangling operation succeeded. |
6885 | -1: A memory allocation failure occurred. |
6886 | -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules. |
6887 | -3: One of the arguments is invalid. |
6888 | |
6889 | The demangling is performed using the C++ ABI mangling rules, with |
6890 | GNU extensions. */ |
6891 | |
6892 | char * |
6893 | __cxa_demangle (const char *mangled_name, char *output_buffer, |
6894 | size_t *length, int *status) |
6895 | { |
6896 | char *demangled; |
6897 | size_t alc; |
6898 | |
6899 | if (mangled_name == NULL) |
6900 | { |
6901 | if (status != NULL) |
6902 | *status = -3; |
6903 | return NULL; |
6904 | } |
6905 | |
6906 | if (output_buffer != NULL && length == NULL) |
6907 | { |
6908 | if (status != NULL) |
6909 | *status = -3; |
6910 | return NULL; |
6911 | } |
6912 | |
6913 | demangled = d_demangle (mangled_name, DMGL_PARAMS | DMGL_TYPES, &alc); |
6914 | |
6915 | if (demangled == NULL) |
6916 | { |
6917 | if (status != NULL) |
6918 | { |
6919 | if (alc == 1) |
6920 | *status = -1; |
6921 | else |
6922 | *status = -2; |
6923 | } |
6924 | return NULL; |
6925 | } |
6926 | |
6927 | if (output_buffer == NULL) |
6928 | { |
6929 | if (length != NULL) |
6930 | *length = alc; |
6931 | } |
6932 | else |
6933 | { |
6934 | if (strlen (demangled) < *length) |
6935 | { |
6936 | strcpy (output_buffer, demangled); |
6937 | free (demangled); |
6938 | demangled = output_buffer; |
6939 | } |
6940 | else |
6941 | { |
6942 | free (output_buffer); |
6943 | *length = alc; |
6944 | } |
6945 | } |
6946 | |
6947 | if (status != NULL) |
6948 | *status = 0; |
6949 | |
6950 | return demangled; |
6951 | } |
6952 | |
6953 | extern int __gcclibcxx_demangle_callback (const char *, |
6954 | void (*) |
6955 | (const char *, size_t, void *), |
6956 | void *); |
6957 | |
6958 | /* Alternative, allocationless entry point in the C++ runtime library |
6959 | for performing demangling. MANGLED_NAME is a NUL-terminated character |
6960 | string containing the name to be demangled. |
6961 | |
6962 | CALLBACK is a callback function, called with demangled string |
6963 | segments as demangling progresses; it is called at least once, |
6964 | but may be called more than once. OPAQUE is a generalized pointer |
6965 | used as a callback argument. |
6966 | |
6967 | The return code is one of the following values, equivalent to |
6968 | the STATUS values of __cxa_demangle() (excluding -1, since this |
6969 | function performs no memory allocations): |
6970 | 0: The demangling operation succeeded. |
6971 | -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules. |
6972 | -3: One of the arguments is invalid. |
6973 | |
6974 | The demangling is performed using the C++ ABI mangling rules, with |
6975 | GNU extensions. */ |
6976 | |
6977 | int |
6978 | __gcclibcxx_demangle_callback (const char *mangled_name, |
6979 | void (*callback) (const char *, size_t, void *), |
6980 | void *opaque) |
6981 | { |
6982 | int status; |
6983 | |
6984 | if (mangled_name == NULL || callback == NULL) |
6985 | return -3; |
6986 | |
6987 | status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES, |
6988 | callback, opaque); |
6989 | if (status == 0) |
6990 | return -2; |
6991 | |
6992 | return 0; |
6993 | } |
6994 | |
6995 | #else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */ |
6996 | |
6997 | /* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI |
6998 | mangled name, return a buffer allocated with malloc holding the |
6999 | demangled name. Otherwise, return NULL. */ |
7000 | |
7001 | char * |
7002 | cplus_demangle_v3 (const char *mangled, int options) |
7003 | { |
7004 | size_t alc; |
7005 | |
7006 | return d_demangle (mangled, options, palc: &alc); |
7007 | } |
7008 | |
7009 | int |
7010 | cplus_demangle_v3_callback (const char *mangled, int options, |
7011 | demangle_callbackref callback, void *opaque) |
7012 | { |
7013 | return d_demangle_callback (mangled, options, callback, opaque); |
7014 | } |
7015 | |
7016 | /* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling |
7017 | conventions, but the output formatting is a little different. |
7018 | This instructs the C++ demangler not to emit pointer characters ("*"), to |
7019 | use Java's namespace separator symbol ("." instead of "::"), and to output |
7020 | JArray<TYPE> as TYPE[]. */ |
7021 | |
7022 | char * |
7023 | java_demangle_v3 (const char *mangled) |
7024 | { |
7025 | size_t alc; |
7026 | |
7027 | return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, palc: &alc); |
7028 | } |
7029 | |
7030 | int |
7031 | java_demangle_v3_callback (const char *mangled, |
7032 | demangle_callbackref callback, void *opaque) |
7033 | { |
7034 | return d_demangle_callback (mangled, |
7035 | DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, |
7036 | callback, opaque); |
7037 | } |
7038 | |
7039 | #endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */ |
7040 | |
7041 | #ifndef IN_GLIBCPP_V3 |
7042 | |
7043 | /* Demangle a string in order to find out whether it is a constructor |
7044 | or destructor. Return non-zero on success. Set *CTOR_KIND and |
7045 | *DTOR_KIND appropriately. */ |
7046 | |
7047 | static int |
7048 | is_ctor_or_dtor (const char *mangled, |
7049 | enum gnu_v3_ctor_kinds *ctor_kind, |
7050 | enum gnu_v3_dtor_kinds *dtor_kind) |
7051 | { |
7052 | struct d_info di; |
7053 | struct demangle_component *dc; |
7054 | int ret; |
7055 | |
7056 | *ctor_kind = (enum gnu_v3_ctor_kinds) 0; |
7057 | *dtor_kind = (enum gnu_v3_dtor_kinds) 0; |
7058 | |
7059 | cplus_demangle_init_info (mangled, DMGL_GNU_V3, len: strlen (s: mangled), di: &di); |
7060 | |
7061 | { |
7062 | #ifdef CP_DYNAMIC_ARRAYS |
7063 | __extension__ struct demangle_component comps[di.num_comps]; |
7064 | __extension__ struct demangle_component *subs[di.num_subs]; |
7065 | |
7066 | di.comps = comps; |
7067 | di.subs = subs; |
7068 | #else |
7069 | di.comps = alloca (di.num_comps * sizeof (*di.comps)); |
7070 | di.subs = alloca (di.num_subs * sizeof (*di.subs)); |
7071 | #endif |
7072 | |
7073 | dc = cplus_demangle_mangled_name (di: &di, top_level: 1); |
7074 | |
7075 | /* Note that because we did not pass DMGL_PARAMS, we don't expect |
7076 | to demangle the entire string. */ |
7077 | |
7078 | ret = 0; |
7079 | while (dc != NULL) |
7080 | { |
7081 | switch (dc->type) |
7082 | { |
7083 | /* These cannot appear on a constructor or destructor. */ |
7084 | case DEMANGLE_COMPONENT_RESTRICT_THIS: |
7085 | case DEMANGLE_COMPONENT_VOLATILE_THIS: |
7086 | case DEMANGLE_COMPONENT_CONST_THIS: |
7087 | case DEMANGLE_COMPONENT_REFERENCE_THIS: |
7088 | case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: |
7089 | default: |
7090 | dc = NULL; |
7091 | break; |
7092 | case DEMANGLE_COMPONENT_TYPED_NAME: |
7093 | case DEMANGLE_COMPONENT_TEMPLATE: |
7094 | dc = d_left (dc); |
7095 | break; |
7096 | case DEMANGLE_COMPONENT_QUAL_NAME: |
7097 | case DEMANGLE_COMPONENT_LOCAL_NAME: |
7098 | dc = d_right (dc); |
7099 | break; |
7100 | case DEMANGLE_COMPONENT_CTOR: |
7101 | *ctor_kind = dc->u.s_ctor.kind; |
7102 | ret = 1; |
7103 | dc = NULL; |
7104 | break; |
7105 | case DEMANGLE_COMPONENT_DTOR: |
7106 | *dtor_kind = dc->u.s_dtor.kind; |
7107 | ret = 1; |
7108 | dc = NULL; |
7109 | break; |
7110 | } |
7111 | } |
7112 | } |
7113 | |
7114 | return ret; |
7115 | } |
7116 | |
7117 | /* Return whether NAME is the mangled form of a g++ V3 ABI constructor |
7118 | name. A non-zero return indicates the type of constructor. */ |
7119 | |
7120 | enum gnu_v3_ctor_kinds |
7121 | is_gnu_v3_mangled_ctor (const char *name) |
7122 | { |
7123 | enum gnu_v3_ctor_kinds ctor_kind; |
7124 | enum gnu_v3_dtor_kinds dtor_kind; |
7125 | |
7126 | if (! is_ctor_or_dtor (mangled: name, ctor_kind: &ctor_kind, dtor_kind: &dtor_kind)) |
7127 | return (enum gnu_v3_ctor_kinds) 0; |
7128 | return ctor_kind; |
7129 | } |
7130 | |
7131 | |
7132 | /* Return whether NAME is the mangled form of a g++ V3 ABI destructor |
7133 | name. A non-zero return indicates the type of destructor. */ |
7134 | |
7135 | enum gnu_v3_dtor_kinds |
7136 | is_gnu_v3_mangled_dtor (const char *name) |
7137 | { |
7138 | enum gnu_v3_ctor_kinds ctor_kind; |
7139 | enum gnu_v3_dtor_kinds dtor_kind; |
7140 | |
7141 | if (! is_ctor_or_dtor (mangled: name, ctor_kind: &ctor_kind, dtor_kind: &dtor_kind)) |
7142 | return (enum gnu_v3_dtor_kinds) 0; |
7143 | return dtor_kind; |
7144 | } |
7145 | |
7146 | #endif /* IN_GLIBCPP_V3 */ |
7147 | |
7148 | #ifdef STANDALONE_DEMANGLER |
7149 | |
7150 | #include "getopt.h" |
7151 | #include "dyn-string.h" |
7152 | |
7153 | static void print_usage (FILE* fp, int exit_value); |
7154 | |
7155 | #define IS_ALPHA(CHAR) \ |
7156 | (((CHAR) >= 'a' && (CHAR) <= 'z') \ |
7157 | || ((CHAR) >= 'A' && (CHAR) <= 'Z')) |
7158 | |
7159 | /* Non-zero if CHAR is a character than can occur in a mangled name. */ |
7160 | #define is_mangled_char(CHAR) \ |
7161 | (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \ |
7162 | || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$') |
7163 | |
7164 | /* The name of this program, as invoked. */ |
7165 | const char* program_name; |
7166 | |
7167 | /* Prints usage summary to FP and then exits with EXIT_VALUE. */ |
7168 | |
7169 | static void |
7170 | print_usage (FILE* fp, int exit_value) |
7171 | { |
7172 | fprintf (fp, "Usage: %s [options] [names ...]\n" , program_name); |
7173 | fprintf (fp, "Options:\n" ); |
7174 | fprintf (fp, " -h,--help Display this message.\n" ); |
7175 | fprintf (fp, " -p,--no-params Don't display function parameters\n" ); |
7176 | fprintf (fp, " -v,--verbose Produce verbose demanglings.\n" ); |
7177 | fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n" ); |
7178 | |
7179 | exit (exit_value); |
7180 | } |
7181 | |
7182 | /* Option specification for getopt_long. */ |
7183 | static const struct option long_options[] = |
7184 | { |
7185 | { "help" , no_argument, NULL, 'h' }, |
7186 | { "no-params" , no_argument, NULL, 'p' }, |
7187 | { "verbose" , no_argument, NULL, 'v' }, |
7188 | { NULL, no_argument, NULL, 0 }, |
7189 | }; |
7190 | |
7191 | /* Main entry for a demangling filter executable. It will demangle |
7192 | its command line arguments, if any. If none are provided, it will |
7193 | filter stdin to stdout, replacing any recognized mangled C++ names |
7194 | with their demangled equivalents. */ |
7195 | |
7196 | int |
7197 | main (int argc, char *argv[]) |
7198 | { |
7199 | int i; |
7200 | int opt_char; |
7201 | int options = DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES; |
7202 | |
7203 | /* Use the program name of this program, as invoked. */ |
7204 | program_name = argv[0]; |
7205 | |
7206 | /* Parse options. */ |
7207 | do |
7208 | { |
7209 | opt_char = getopt_long (argc, argv, "hpv" , long_options, NULL); |
7210 | switch (opt_char) |
7211 | { |
7212 | case '?': /* Unrecognized option. */ |
7213 | print_usage (stderr, 1); |
7214 | break; |
7215 | |
7216 | case 'h': |
7217 | print_usage (stdout, 0); |
7218 | break; |
7219 | |
7220 | case 'p': |
7221 | options &= ~ DMGL_PARAMS; |
7222 | break; |
7223 | |
7224 | case 'v': |
7225 | options |= DMGL_VERBOSE; |
7226 | break; |
7227 | } |
7228 | } |
7229 | while (opt_char != -1); |
7230 | |
7231 | if (optind == argc) |
7232 | /* No command line arguments were provided. Filter stdin. */ |
7233 | { |
7234 | dyn_string_t mangled = dyn_string_new (3); |
7235 | char *s; |
7236 | |
7237 | /* Read all of input. */ |
7238 | while (!feof (stdin)) |
7239 | { |
7240 | char c; |
7241 | |
7242 | /* Pile characters into mangled until we hit one that can't |
7243 | occur in a mangled name. */ |
7244 | c = getchar (); |
7245 | while (!feof (stdin) && is_mangled_char (c)) |
7246 | { |
7247 | dyn_string_append_char (mangled, c); |
7248 | if (feof (stdin)) |
7249 | break; |
7250 | c = getchar (); |
7251 | } |
7252 | |
7253 | if (dyn_string_length (mangled) > 0) |
7254 | { |
7255 | #ifdef IN_GLIBCPP_V3 |
7256 | s = __cxa_demangle (dyn_string_buf (mangled), NULL, NULL, NULL); |
7257 | #else |
7258 | s = cplus_demangle_v3 (dyn_string_buf (mangled), options); |
7259 | #endif |
7260 | |
7261 | if (s != NULL) |
7262 | { |
7263 | fputs (s, stdout); |
7264 | free (s); |
7265 | } |
7266 | else |
7267 | { |
7268 | /* It might not have been a mangled name. Print the |
7269 | original text. */ |
7270 | fputs (dyn_string_buf (mangled), stdout); |
7271 | } |
7272 | |
7273 | dyn_string_clear (mangled); |
7274 | } |
7275 | |
7276 | /* If we haven't hit EOF yet, we've read one character that |
7277 | can't occur in a mangled name, so print it out. */ |
7278 | if (!feof (stdin)) |
7279 | putchar (c); |
7280 | } |
7281 | |
7282 | dyn_string_delete (mangled); |
7283 | } |
7284 | else |
7285 | /* Demangle command line arguments. */ |
7286 | { |
7287 | /* Loop over command line arguments. */ |
7288 | for (i = optind; i < argc; ++i) |
7289 | { |
7290 | char *s; |
7291 | #ifdef IN_GLIBCPP_V3 |
7292 | int status; |
7293 | #endif |
7294 | |
7295 | /* Attempt to demangle. */ |
7296 | #ifdef IN_GLIBCPP_V3 |
7297 | s = __cxa_demangle (argv[i], NULL, NULL, &status); |
7298 | #else |
7299 | s = cplus_demangle_v3 (argv[i], options); |
7300 | #endif |
7301 | |
7302 | /* If it worked, print the demangled name. */ |
7303 | if (s != NULL) |
7304 | { |
7305 | printf ("%s\n" , s); |
7306 | free (s); |
7307 | } |
7308 | else |
7309 | { |
7310 | #ifdef IN_GLIBCPP_V3 |
7311 | fprintf (stderr, "Failed: %s (status %d)\n" , argv[i], status); |
7312 | #else |
7313 | fprintf (stderr, "Failed: %s\n" , argv[i]); |
7314 | #endif |
7315 | } |
7316 | } |
7317 | } |
7318 | |
7319 | return 0; |
7320 | } |
7321 | |
7322 | #endif /* STANDALONE_DEMANGLER */ |
7323 | |