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69afa80d AS |
1 | /* Demangler for IA64 / g++ standard C++ ABI. |
2 | Copyright (C) 2000 CodeSourcery LLC. | |
3 | Written by Alex Samuel <samuel@codesourcery.com>. | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | */ | |
19 | ||
20 | /* This file implements demangling of C++ names mangled according to | |
21 | the IA64 / g++ standard C++ ABI. Use the cp_demangle function to | |
22 | demangle a mangled name, or compile with the preprocessor macro | |
23 | STANDALONE_DEMANGLER defined to create a demangling filter | |
24 | executable. */ | |
25 | ||
26 | #ifdef HAVE_CONFIG_H | |
27 | #include "config.h" | |
28 | #endif | |
29 | ||
69afa80d AS |
30 | #ifdef HAVE_STDLIB_H |
31 | #include <stdlib.h> | |
32 | #endif | |
33 | ||
69afa80d | 34 | #include <stdio.h> |
69afa80d AS |
35 | |
36 | #ifdef HAVE_STRING_H | |
37 | #include <string.h> | |
38 | #endif | |
39 | ||
40 | #include "ansidecl.h" | |
41 | #include "libiberty.h" | |
42 | #include "dyn-string.h" | |
7eb23b1f | 43 | #include "demangle.h" |
69afa80d AS |
44 | |
45 | /* If CP_DEMANGLE_DEBUG is defined, a trace of the grammar evaluation, | |
46 | and other debugging output, will be generated. */ | |
47 | #ifdef CP_DEMANGLE_DEBUG | |
051664b0 AS |
48 | #define DEMANGLE_TRACE(PRODUCTION, DM) \ |
49 | fprintf (stderr, " -> %-24s at position %3d\n", \ | |
69afa80d AS |
50 | (PRODUCTION), current_position (DM)); |
51 | #else | |
52 | #define DEMANGLE_TRACE(PRODUCTION, DM) | |
53 | #endif | |
54 | ||
051664b0 AS |
55 | /* Don't include <ctype.h>, to prevent additional unresolved symbols |
56 | from being dragged into the C++ runtime library. */ | |
57 | #define IS_DIGIT(CHAR) ((CHAR) >= '0' && (CHAR) <= '9') | |
58 | #define IS_ALPHA(CHAR) \ | |
59 | (((CHAR) >= 'a' && (CHAR) <= 'z') \ | |
60 | || ((CHAR) >= 'A' && (CHAR) <= 'Z')) | |
61 | ||
69afa80d AS |
62 | /* If flag_verbose is zero, some simplifications will be made to the |
63 | output to make it easier to read and supress details that are | |
64 | generally not of interest to the average C++ programmer. | |
65 | Otherwise, the demangled representation will attempt to convey as | |
66 | much information as the mangled form. */ | |
67 | static int flag_verbose; | |
68 | ||
69 | /* If flag_strict is non-zero, demangle strictly according to the | |
70 | specification -- don't demangle special g++ manglings. */ | |
71 | static int flag_strict; | |
72 | ||
73 | /* String_list_t is an extended form of dyn_string_t which provides a link | |
74 | field. A string_list_t may safely be cast to and used as a | |
75 | dyn_string_t. */ | |
76 | ||
77 | struct string_list_def | |
78 | { | |
79 | struct dyn_string string; | |
80 | struct string_list_def *next; | |
81 | }; | |
82 | ||
83 | typedef struct string_list_def *string_list_t; | |
84 | ||
85 | /* Data structure representing a potential substitution. */ | |
86 | ||
87 | struct substitution_def | |
88 | { | |
89 | /* The demangled text of the substitution. */ | |
90 | dyn_string_t text; | |
91 | ||
92 | /* The template parameter that this represents, indexed from zero. | |
93 | If this is not a template paramter number, the value is | |
94 | NOT_TEMPLATE_PARM. */ | |
95 | int template_parm_number; | |
96 | ||
97 | /* Whether this substitution represents a template item. */ | |
98 | int template_p : 1; | |
99 | }; | |
100 | ||
101 | #define NOT_TEMPLATE_PARM (-1) | |
102 | ||
103 | /* Data structure representing a template argument list. */ | |
104 | ||
105 | struct template_arg_list_def | |
106 | { | |
107 | /* The next (lower) template argument list in the stack of currently | |
108 | active template arguments. */ | |
109 | struct template_arg_list_def *next; | |
110 | ||
111 | /* The first element in the list of template arguments in | |
112 | left-to-right order. */ | |
113 | string_list_t first_argument; | |
114 | ||
115 | /* The last element in the arguments lists. */ | |
116 | string_list_t last_argument; | |
117 | }; | |
118 | ||
119 | typedef struct template_arg_list_def *template_arg_list_t; | |
120 | ||
121 | /* Data structure to maintain the state of the current demangling. */ | |
122 | ||
123 | struct demangling_def | |
124 | { | |
125 | /* The full mangled name being mangled. */ | |
051664b0 | 126 | const char *name; |
69afa80d AS |
127 | |
128 | /* Pointer into name at the current position. */ | |
051664b0 | 129 | const char *next; |
69afa80d AS |
130 | |
131 | /* Stack for strings containing demangled result generated so far. | |
132 | Text is emitted to the topmost (first) string. */ | |
133 | string_list_t result; | |
134 | ||
135 | /* The number of presently available substitutions. */ | |
136 | int num_substitutions; | |
137 | ||
138 | /* The allocated size of the substitutions array. */ | |
139 | int substitutions_allocated; | |
140 | ||
141 | /* An array of available substitutions. The number of elements in | |
142 | the array is given by num_substitions, and the allocated array | |
143 | size in substitutions_size. | |
144 | ||
145 | The most recent substition is at the end, so | |
146 | ||
147 | - `S_' corresponds to substititutions[num_substitutions - 1] | |
148 | - `S0_' corresponds to substititutions[num_substitutions - 2] | |
149 | ||
150 | etc. */ | |
151 | struct substitution_def *substitutions; | |
152 | ||
153 | /* The stack of template argument lists. */ | |
154 | template_arg_list_t template_arg_lists; | |
155 | ||
156 | /* The most recently demangled source-name. */ | |
157 | dyn_string_t last_source_name; | |
158 | }; | |
159 | ||
160 | typedef struct demangling_def *demangling_t; | |
161 | ||
162 | /* This type is the standard return code from most functions. Values | |
163 | other than STATUS_OK contain descriptive messages. */ | |
164 | typedef const char *status_t; | |
165 | ||
166 | /* Special values that can be used as a status_t. */ | |
051664b0 AS |
167 | #define STATUS_OK NULL |
168 | #define STATUS_ERROR "Error." | |
169 | #define STATUS_UNIMPLEMENTED "Unimplemented." | |
170 | #define STATUS_INTERNAL_ERROR "Internal error." | |
171 | ||
172 | /* This status code indicates a failure in malloc or realloc. */ | |
173 | static const char* const status_allocation_failed = "Allocation failed."; | |
174 | #define STATUS_ALLOCATION_FAILED status_allocation_failed | |
175 | ||
176 | /* Non-zero if STATUS indicates that no error has occurred. */ | |
177 | #define STATUS_NO_ERROR(STATUS) ((STATUS) == STATUS_OK) | |
178 | ||
179 | /* Evaluate EXPR, which must produce a status_t. If the status code | |
180 | indicates an error, return from the current function with that | |
181 | status code. */ | |
182 | #define RETURN_IF_ERROR(EXPR) \ | |
183 | do \ | |
184 | { \ | |
185 | status_t s = EXPR; \ | |
186 | if (!STATUS_NO_ERROR (s)) \ | |
187 | return s; \ | |
188 | } \ | |
189 | while (0) | |
69afa80d | 190 | |
051664b0 | 191 | static status_t int_to_dyn_string |
69afa80d AS |
192 | PARAMS ((int, dyn_string_t)); |
193 | static string_list_t string_list_new | |
194 | PARAMS ((int)); | |
195 | static void string_list_delete | |
196 | PARAMS ((string_list_t)); | |
051664b0 | 197 | static status_t result_close_template_list |
69afa80d | 198 | PARAMS ((demangling_t)); |
051664b0 | 199 | static status_t result_push |
69afa80d AS |
200 | PARAMS ((demangling_t)); |
201 | static string_list_t result_pop | |
202 | PARAMS ((demangling_t)); | |
203 | static int substitution_start | |
204 | PARAMS ((demangling_t)); | |
051664b0 | 205 | static status_t substitution_add |
69afa80d AS |
206 | PARAMS ((demangling_t, int, int, int)); |
207 | static dyn_string_t substitution_get | |
208 | PARAMS ((demangling_t, int, int *)); | |
209 | #ifdef CP_DEMANGLE_DEBUG | |
210 | static void substitutions_print | |
211 | PARAMS ((demangling_t, FILE *)); | |
212 | #endif | |
213 | static template_arg_list_t template_arg_list_new | |
214 | PARAMS ((void)); | |
215 | static void template_arg_list_delete | |
216 | PARAMS ((template_arg_list_t)); | |
217 | static void template_arg_list_add_arg | |
218 | PARAMS ((template_arg_list_t, string_list_t)); | |
219 | static string_list_t template_arg_list_get_arg | |
220 | PARAMS ((template_arg_list_t, int)); | |
221 | static void push_template_arg_list | |
222 | PARAMS ((demangling_t, template_arg_list_t)); | |
223 | static void pop_to_template_arg_list | |
224 | PARAMS ((demangling_t, template_arg_list_t)); | |
225 | #ifdef CP_DEMANGLE_DEBUG | |
226 | static void template_arg_list_print | |
227 | PARAMS ((template_arg_list_t, FILE *)); | |
228 | #endif | |
229 | static template_arg_list_t current_template_arg_list | |
230 | PARAMS ((demangling_t)); | |
231 | static demangling_t demangling_new | |
051664b0 | 232 | PARAMS ((const char *)); |
69afa80d AS |
233 | static void demangling_delete |
234 | PARAMS ((demangling_t)); | |
235 | ||
236 | /* The last character of DS. Warning: DS is evaluated twice. */ | |
237 | #define dyn_string_last_char(DS) \ | |
238 | (dyn_string_buf (DS)[dyn_string_length (DS) - 1]) | |
239 | ||
240 | /* Append a space character (` ') to DS if it does not already end | |
051664b0 | 241 | with one. Evaluates to 1 on success, or 0 on allocation failure. */ |
69afa80d | 242 | #define dyn_string_append_space(DS) \ |
051664b0 AS |
243 | ((dyn_string_length (DS) > 0 \ |
244 | && dyn_string_last_char (DS) != ' ') \ | |
245 | ? dyn_string_append_char ((DS), ' ') \ | |
246 | : 1) | |
69afa80d AS |
247 | |
248 | /* Returns the index of the current position in the mangled name. */ | |
249 | #define current_position(DM) ((DM)->next - (DM)->name) | |
250 | ||
251 | /* Returns the character at the current position of the mangled name. */ | |
252 | #define peek_char(DM) (*((DM)->next)) | |
253 | ||
254 | /* Returns the character one past the current position of the mangled | |
255 | name. */ | |
256 | #define peek_char_next(DM) \ | |
257 | (peek_char (DM) == '\0' ? '\0' : (*((DM)->next + 1))) | |
258 | ||
259 | /* Returns the character at the current position, and advances the | |
260 | current position to the next character. */ | |
261 | #define next_char(DM) (*((DM)->next)++) | |
262 | ||
263 | /* Returns non-zero if the current position is the end of the mangled | |
264 | name, i.e. one past the last character. */ | |
265 | #define end_of_name_p(DM) (peek_char (DM) == '\0') | |
266 | ||
267 | /* Advances the current position by one character. */ | |
268 | #define advance_char(DM) (++(DM)->next) | |
269 | ||
270 | /* Returns the string containing the current demangled result. */ | |
271 | #define result_string(DM) (&(DM)->result->string) | |
272 | ||
273 | /* Appends a dyn_string_t to the demangled result. */ | |
274 | #define result_append_string(DM, STRING) \ | |
051664b0 AS |
275 | (dyn_string_append (&(DM)->result->string, (STRING)) \ |
276 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
69afa80d AS |
277 | |
278 | /* Appends NUL-terminated string CSTR to the demangled result. */ | |
279 | #define result_append(DM, CSTR) \ | |
051664b0 AS |
280 | (dyn_string_append_cstr (&(DM)->result->string, (CSTR)) \ |
281 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
69afa80d AS |
282 | |
283 | /* Appends character CHAR to the demangled result. */ | |
284 | #define result_append_char(DM, CHAR) \ | |
051664b0 AS |
285 | (dyn_string_append_char (&(DM)->result->string, (CHAR)) \ |
286 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
69afa80d AS |
287 | |
288 | /* The length of the current demangled result. */ | |
289 | #define result_length(DM) \ | |
290 | dyn_string_length (&(DM)->result->string) | |
291 | ||
292 | /* Appends a space to the demangled result if the last character is | |
293 | not a space. */ | |
294 | #define result_append_space(DM) \ | |
051664b0 AS |
295 | (dyn_string_append_space (&(DM)->result->string) \ |
296 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
69afa80d | 297 | |
051664b0 AS |
298 | /* Appends a base 10 representation of VALUE to DS. STATUS_OK on |
299 | success. On failure, deletes DS and returns an error code. */ | |
69afa80d | 300 | |
051664b0 | 301 | static status_t |
69afa80d AS |
302 | int_to_dyn_string (value, ds) |
303 | int value; | |
304 | dyn_string_t ds; | |
305 | { | |
306 | int i; | |
307 | int mask = 1; | |
308 | ||
309 | /* Handle zero up front. */ | |
310 | if (value == 0) | |
311 | { | |
051664b0 AS |
312 | if (!dyn_string_append_char (ds, '0')) |
313 | return STATUS_ALLOCATION_FAILED; | |
314 | return STATUS_OK; | |
69afa80d AS |
315 | } |
316 | ||
317 | /* For negative numbers, emit a minus sign. */ | |
318 | if (value < 0) | |
319 | { | |
051664b0 AS |
320 | if (!dyn_string_append_char (ds, '-')) |
321 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
322 | value = -value; |
323 | } | |
324 | ||
325 | /* Find the power of 10 of the first digit. */ | |
326 | i = value; | |
327 | while (i > 9) | |
328 | { | |
329 | mask *= 10; | |
330 | i /= 10; | |
331 | } | |
332 | ||
333 | /* Write the digits. */ | |
334 | while (mask > 0) | |
335 | { | |
336 | int digit = value / mask; | |
051664b0 AS |
337 | |
338 | if (!dyn_string_append_char (ds, '0' + digit)) | |
339 | return STATUS_ALLOCATION_FAILED; | |
340 | ||
69afa80d AS |
341 | value -= digit * mask; |
342 | mask /= 10; | |
343 | } | |
051664b0 AS |
344 | |
345 | return STATUS_OK; | |
69afa80d AS |
346 | } |
347 | ||
348 | /* Creates a new string list node. The contents of the string are | |
349 | empty, but the initial buffer allocation is LENGTH. The string | |
051664b0 AS |
350 | list node should be deleted with string_list_delete. Returns NULL |
351 | if allocation fails. */ | |
69afa80d AS |
352 | |
353 | static string_list_t | |
354 | string_list_new (length) | |
355 | int length; | |
356 | { | |
051664b0 AS |
357 | string_list_t s = (string_list_t) malloc (sizeof (struct string_list_def)); |
358 | if (s == NULL) | |
359 | return NULL; | |
360 | if (!dyn_string_init ((dyn_string_t) s, length)) | |
361 | return NULL; | |
69afa80d AS |
362 | return s; |
363 | } | |
364 | ||
365 | /* Deletes the entire string list starting at NODE. */ | |
366 | ||
367 | static void | |
368 | string_list_delete (node) | |
369 | string_list_t node; | |
370 | { | |
371 | while (node != NULL) | |
372 | { | |
373 | string_list_t next = node->next; | |
374 | free (node); | |
375 | node = next; | |
376 | } | |
377 | } | |
378 | ||
379 | /* Appends a greater-than character to the demangled result. If the | |
380 | last character is a greater-than character, a space is inserted | |
381 | first, so that the two greater-than characters don't look like a | |
382 | right shift token. */ | |
383 | ||
051664b0 | 384 | static status_t |
69afa80d AS |
385 | result_close_template_list (dm) |
386 | demangling_t dm; | |
387 | { | |
388 | dyn_string_t s = &dm->result->string; | |
051664b0 AS |
389 | |
390 | /* Add a space if the last character is already a closing angle | |
391 | bracket, so that a nested template arg list doesn't look like | |
392 | it's closed with a right-shift operator. */ | |
69afa80d | 393 | if (dyn_string_last_char (s) == '>') |
051664b0 AS |
394 | { |
395 | if (!dyn_string_append_char (s, ' ')) | |
396 | return STATUS_ALLOCATION_FAILED; | |
397 | } | |
398 | ||
399 | /* Add closing angle brackets. */ | |
400 | if (!dyn_string_append_char (s, '>')) | |
401 | return STATUS_ALLOCATION_FAILED; | |
402 | ||
403 | return STATUS_OK; | |
69afa80d AS |
404 | } |
405 | ||
406 | /* Allocates and pushes a new string onto the demangled results stack | |
051664b0 AS |
407 | for DM. Subsequent demangling with DM will emit to the new string. |
408 | Returns STATUS_OK on success, STATUS_ALLOCATION_FAILED on | |
409 | allocation failure. */ | |
69afa80d | 410 | |
051664b0 | 411 | static status_t |
69afa80d AS |
412 | result_push (dm) |
413 | demangling_t dm; | |
414 | { | |
415 | string_list_t new_string = string_list_new (0); | |
051664b0 AS |
416 | if (new_string == NULL) |
417 | /* Allocation failed. */ | |
418 | return STATUS_ALLOCATION_FAILED; | |
419 | ||
420 | /* Link the new string to the front of the list of result strings. */ | |
69afa80d AS |
421 | new_string->next = (string_list_t) dm->result; |
422 | dm->result = new_string; | |
051664b0 | 423 | return STATUS_OK; |
69afa80d AS |
424 | } |
425 | ||
426 | /* Removes and returns the topmost element on the demangled results | |
427 | stack for DM. The caller assumes ownership for the returned | |
428 | string. */ | |
429 | ||
430 | static string_list_t | |
431 | result_pop (dm) | |
432 | demangling_t dm; | |
433 | { | |
434 | string_list_t top = dm->result; | |
435 | dm->result = top->next; | |
436 | return top; | |
437 | } | |
438 | ||
439 | /* Returns the start position of a fragment of the demangled result | |
440 | that will be a substitution candidate. Should be called at the | |
441 | start of productions that can add substitutions. */ | |
442 | ||
443 | static int | |
444 | substitution_start (dm) | |
445 | demangling_t dm; | |
446 | { | |
447 | return result_length (dm); | |
448 | } | |
449 | ||
450 | /* Adds the suffix of the current demangled result of DM starting at | |
451 | START_POSITION as a potential substitution. If TEMPLATE_P is | |
452 | non-zero, this potential substitution is a template-id. | |
453 | ||
454 | If TEMPLATE_PARM_NUMBER is not NOT_TEMPLATE_PARM, the substitution | |
455 | is for that particular <template-param>, and is distinct from other | |
456 | otherwise-identical types and other <template-param>s with | |
457 | different indices. */ | |
458 | ||
051664b0 | 459 | static status_t |
69afa80d AS |
460 | substitution_add (dm, start_position, template_p, template_parm_number) |
461 | demangling_t dm; | |
462 | int start_position; | |
463 | int template_p; | |
464 | int template_parm_number; | |
465 | { | |
466 | dyn_string_t result = result_string (dm); | |
467 | dyn_string_t substitution = dyn_string_new (0); | |
468 | int i; | |
469 | ||
051664b0 AS |
470 | if (substitution == NULL) |
471 | return STATUS_ALLOCATION_FAILED; | |
472 | ||
473 | /* Extract the substring of the current demangling result that | |
474 | represents the subsitution candidate. */ | |
475 | if (!dyn_string_substring (substitution, | |
476 | result, start_position, result_length (dm))) | |
477 | { | |
478 | dyn_string_delete (substitution); | |
479 | return STATUS_ALLOCATION_FAILED; | |
480 | } | |
69afa80d AS |
481 | |
482 | /* Check whether SUBSTITUTION already occurs. */ | |
483 | for (i = 0; i < dm->num_substitutions; ++i) | |
484 | if (dyn_string_eq (dm->substitutions[i].text, substitution) | |
485 | && dm->substitutions[i].template_parm_number == template_parm_number) | |
486 | /* Found SUBSTITUTION already present. */ | |
487 | { | |
488 | /* Callers expect this function to take ownership of | |
489 | SUBSTITUTION, so delete it. */ | |
490 | dyn_string_delete (substitution); | |
051664b0 | 491 | return STATUS_OK; |
69afa80d AS |
492 | } |
493 | ||
494 | /* If there's no room for the new entry, grow the array. */ | |
495 | if (dm->substitutions_allocated == dm->num_substitutions) | |
496 | { | |
051664b0 | 497 | size_t new_array_size; |
69afa80d | 498 | dm->substitutions_allocated *= 2; |
051664b0 AS |
499 | new_array_size = |
500 | sizeof (struct substitution_def) * dm->substitutions_allocated; | |
501 | ||
502 | dm->substitutions = (struct substitution_def *) | |
503 | realloc (dm->substitutions, new_array_size); | |
504 | if (dm->substitutions == NULL) | |
505 | /* Realloc failed. */ | |
506 | { | |
507 | dyn_string_delete (substitution); | |
508 | return STATUS_ALLOCATION_FAILED; | |
509 | } | |
69afa80d AS |
510 | } |
511 | ||
512 | /* Add the substitution to the array. */ | |
513 | dm->substitutions[i].text = substitution; | |
514 | dm->substitutions[i].template_p = template_p; | |
515 | dm->substitutions[i].template_parm_number = template_parm_number; | |
516 | ++dm->num_substitutions; | |
517 | ||
518 | #ifdef CP_DEMANGLE_DEBUG | |
519 | substitutions_print (dm, stderr); | |
520 | #endif | |
051664b0 AS |
521 | |
522 | return STATUS_OK; | |
69afa80d AS |
523 | } |
524 | ||
525 | /* Returns the Nth-most-recent substitution. Sets *TEMPLATE_P to | |
526 | non-zero if the substitution is a template-id, zero otherwise. | |
527 | N is numbered from zero. DM retains ownership of the returned | |
528 | string. If N is negative, or equal to or greater than the current | |
529 | number of substitution candidates, returns NULL. */ | |
530 | ||
531 | static dyn_string_t | |
532 | substitution_get (dm, n, template_p) | |
533 | demangling_t dm; | |
534 | int n; | |
535 | int *template_p; | |
536 | { | |
537 | struct substitution_def *sub; | |
538 | ||
539 | /* Make sure N is in the valid range. */ | |
540 | if (n < 0 || n >= dm->num_substitutions) | |
541 | return NULL; | |
542 | ||
543 | sub = &(dm->substitutions[n]); | |
544 | *template_p = sub->template_p; | |
545 | return sub->text; | |
546 | } | |
547 | ||
548 | #ifdef CP_DEMANGLE_DEBUG | |
549 | /* Debugging routine to print the current substitutions to FP. */ | |
550 | ||
551 | static void | |
552 | substitutions_print (dm, fp) | |
553 | demangling_t dm; | |
554 | FILE *fp; | |
555 | { | |
556 | int seq_id; | |
557 | int num = dm->num_substitutions; | |
558 | ||
559 | fprintf (fp, "SUBSTITUTIONS:\n"); | |
560 | for (seq_id = -1; seq_id < num - 1; ++seq_id) | |
561 | { | |
562 | int template_p; | |
563 | dyn_string_t text = substitution_get (dm, seq_id + 1, &template_p); | |
564 | ||
565 | if (seq_id == -1) | |
566 | fprintf (fp, " S_ "); | |
567 | else | |
568 | fprintf (fp, " S%d_", seq_id); | |
569 | fprintf (fp, " %c: %s\n", template_p ? '*' : ' ', dyn_string_buf (text)); | |
570 | } | |
571 | } | |
572 | ||
573 | #endif /* CP_DEMANGLE_DEBUG */ | |
574 | ||
051664b0 AS |
575 | /* Creates a new template argument list. Returns NULL if allocation |
576 | fails. */ | |
69afa80d AS |
577 | |
578 | static template_arg_list_t | |
6223e158 | 579 | template_arg_list_new () |
69afa80d | 580 | { |
051664b0 AS |
581 | template_arg_list_t new_list = |
582 | (template_arg_list_t) malloc (sizeof (struct template_arg_list_def)); | |
583 | if (new_list == NULL) | |
584 | return NULL; | |
69afa80d AS |
585 | /* Initialize the new list to have no arguments. */ |
586 | new_list->first_argument = NULL; | |
587 | new_list->last_argument = NULL; | |
588 | /* Return the new list. */ | |
589 | return new_list; | |
590 | } | |
591 | ||
592 | /* Deletes a template argument list and the template arguments it | |
593 | contains. */ | |
594 | ||
595 | static void | |
596 | template_arg_list_delete (list) | |
597 | template_arg_list_t list; | |
598 | { | |
599 | /* If there are any arguments on LIST, delete them. */ | |
600 | if (list->first_argument != NULL) | |
601 | string_list_delete (list->first_argument); | |
602 | /* Delete LIST. */ | |
603 | free (list); | |
604 | } | |
605 | ||
606 | /* Adds ARG to the template argument list ARG_LIST. */ | |
607 | ||
608 | static void | |
609 | template_arg_list_add_arg (arg_list, arg) | |
610 | template_arg_list_t arg_list; | |
611 | string_list_t arg; | |
612 | { | |
613 | if (arg_list->first_argument == NULL) | |
614 | /* If there were no arguments before, ARG is the first one. */ | |
615 | arg_list->first_argument = arg; | |
616 | else | |
617 | /* Make ARG the last argument on the list. */ | |
618 | arg_list->last_argument->next = arg; | |
619 | /* Make ARG the last on the list. */ | |
620 | arg_list->last_argument = arg; | |
621 | arg->next = NULL; | |
622 | } | |
623 | ||
624 | /* Returns the template arugment at position INDEX in template | |
625 | argument list ARG_LIST. */ | |
626 | ||
627 | static string_list_t | |
628 | template_arg_list_get_arg (arg_list, index) | |
629 | template_arg_list_t arg_list; | |
630 | int index; | |
631 | { | |
632 | string_list_t arg = arg_list->first_argument; | |
633 | /* Scan down the list of arguments to find the one at position | |
634 | INDEX. */ | |
635 | while (index--) | |
636 | { | |
637 | arg = arg->next; | |
638 | if (arg == NULL) | |
639 | /* Ran out of arguments before INDEX hit zero. That's an | |
640 | error. */ | |
641 | return NULL; | |
642 | } | |
643 | /* Return the argument at position INDEX. */ | |
644 | return arg; | |
645 | } | |
646 | ||
647 | /* Pushes ARG_LIST onto the top of the template argument list stack. */ | |
648 | ||
649 | static void | |
650 | push_template_arg_list (dm, arg_list) | |
651 | demangling_t dm; | |
652 | template_arg_list_t arg_list; | |
653 | { | |
654 | arg_list->next = dm->template_arg_lists; | |
655 | dm->template_arg_lists = arg_list; | |
656 | #ifdef CP_DEMANGLE_DEBUG | |
657 | fprintf (stderr, " ** pushing template arg list\n"); | |
658 | template_arg_list_print (arg_list, stderr); | |
659 | #endif | |
660 | } | |
661 | ||
662 | /* Pops and deletes elements on the template argument list stack until | |
663 | arg_list is the topmost element. If arg_list is NULL, all elements | |
664 | are popped and deleted. */ | |
665 | ||
666 | static void | |
667 | pop_to_template_arg_list (dm, arg_list) | |
668 | demangling_t dm; | |
669 | template_arg_list_t arg_list; | |
670 | { | |
671 | while (dm->template_arg_lists != arg_list) | |
672 | { | |
673 | template_arg_list_t top = dm->template_arg_lists; | |
674 | /* Disconnect the topmost element from the list. */ | |
675 | dm->template_arg_lists = top->next; | |
676 | /* Delete the popped element. */ | |
677 | template_arg_list_delete (top); | |
678 | #ifdef CP_DEMANGLE_DEBUG | |
679 | fprintf (stderr, " ** removing template arg list\n"); | |
680 | #endif | |
681 | } | |
682 | } | |
683 | ||
684 | #ifdef CP_DEMANGLE_DEBUG | |
685 | ||
686 | /* Prints the contents of ARG_LIST to FP. */ | |
687 | ||
688 | static void | |
689 | template_arg_list_print (arg_list, fp) | |
690 | template_arg_list_t arg_list; | |
691 | FILE *fp; | |
692 | { | |
693 | string_list_t arg; | |
694 | int index = -1; | |
695 | ||
696 | fprintf (fp, "TEMPLATE ARGUMENT LIST:\n"); | |
697 | for (arg = arg_list->first_argument; arg != NULL; arg = arg->next) | |
698 | { | |
699 | if (index == -1) | |
700 | fprintf (fp, " T_ : "); | |
701 | else | |
702 | fprintf (fp, " T%d_ : ", index); | |
703 | ++index; | |
704 | fprintf (fp, "%s\n", dyn_string_buf ((dyn_string_t) arg)); | |
705 | } | |
706 | } | |
707 | ||
708 | #endif /* CP_DEMANGLE_DEBUG */ | |
709 | ||
710 | /* Returns the topmost element on the stack of template argument | |
711 | lists. If there is no list of template arguments, returns NULL. */ | |
712 | ||
713 | static template_arg_list_t | |
714 | current_template_arg_list (dm) | |
715 | demangling_t dm; | |
716 | { | |
717 | return dm->template_arg_lists; | |
718 | } | |
719 | ||
720 | /* Allocates a demangling_t object for demangling mangled NAME. A new | |
051664b0 AS |
721 | result must be pushed before the returned object can be used. |
722 | Returns NULL if allocation fails. */ | |
69afa80d AS |
723 | |
724 | static demangling_t | |
725 | demangling_new (name) | |
051664b0 | 726 | const char *name; |
69afa80d | 727 | { |
051664b0 AS |
728 | demangling_t dm; |
729 | dm = (demangling_t) malloc (sizeof (struct demangling_def)); | |
730 | if (dm == NULL) | |
731 | return NULL; | |
69afa80d AS |
732 | |
733 | dm->name = name; | |
734 | dm->next = name; | |
735 | dm->result = NULL; | |
69afa80d AS |
736 | dm->num_substitutions = 0; |
737 | dm->substitutions_allocated = 10; | |
69afa80d | 738 | dm->template_arg_lists = NULL; |
051664b0 AS |
739 | dm->last_source_name = dyn_string_new (0); |
740 | if (dm->last_source_name == NULL) | |
741 | return NULL; | |
742 | dm->substitutions = (struct substitution_def *) | |
743 | malloc (dm->substitutions_allocated * sizeof (struct substitution_def)); | |
744 | if (dm->substitutions == NULL) | |
745 | { | |
746 | dyn_string_delete (dm->last_source_name); | |
747 | return NULL; | |
748 | } | |
69afa80d AS |
749 | |
750 | return dm; | |
751 | } | |
752 | ||
753 | /* Deallocates a demangling_t object and all memory associated with | |
754 | it. */ | |
755 | ||
756 | static void | |
757 | demangling_delete (dm) | |
758 | demangling_t dm; | |
759 | { | |
760 | int i; | |
761 | template_arg_list_t arg_list = dm->template_arg_lists; | |
762 | ||
763 | /* Delete the stack of template argument lists. */ | |
764 | while (arg_list != NULL) | |
765 | { | |
766 | template_arg_list_t next = arg_list->next; | |
767 | template_arg_list_delete (arg_list); | |
768 | arg_list = next; | |
769 | } | |
770 | /* Delete the list of substitutions. */ | |
771 | for (i = dm->num_substitutions; --i >= 0; ) | |
772 | dyn_string_delete (dm->substitutions[i].text); | |
773 | free (dm->substitutions); | |
774 | /* Delete the demangled result. */ | |
775 | string_list_delete (dm->result); | |
776 | /* Delete the stored identifier name. */ | |
777 | dyn_string_delete (dm->last_source_name); | |
778 | /* Delete the context object itself. */ | |
779 | free (dm); | |
780 | } | |
781 | ||
782 | /* These functions demangle an alternative of the corresponding | |
783 | production in the mangling spec. The first argument of each is a | |
784 | demangling context structure for the current demangling | |
785 | operation. Most emit demangled text directly to the topmost result | |
786 | string on the result string stack in the demangling context | |
787 | structure. */ | |
788 | ||
789 | static status_t demangle_char | |
69197e7e | 790 | PARAMS ((demangling_t, int)); |
69afa80d AS |
791 | static status_t demangle_mangled_name |
792 | PARAMS ((demangling_t)); | |
793 | static status_t demangle_encoding | |
794 | PARAMS ((demangling_t)); | |
795 | static status_t demangle_name | |
796 | PARAMS ((demangling_t, int *)); | |
797 | static status_t demangle_nested_name | |
798 | PARAMS ((demangling_t, int *)); | |
799 | static status_t demangle_prefix | |
800 | PARAMS ((demangling_t, int *)); | |
801 | static status_t demangle_unqualified_name | |
802 | PARAMS ((demangling_t)); | |
803 | static status_t demangle_source_name | |
804 | PARAMS ((demangling_t)); | |
805 | static status_t demangle_number | |
806 | PARAMS ((demangling_t, int *, int, int)); | |
807 | static status_t demangle_number_literally | |
808 | PARAMS ((demangling_t, dyn_string_t, int, int)); | |
809 | static status_t demangle_identifier | |
810 | PARAMS ((demangling_t, int, dyn_string_t)); | |
811 | static status_t demangle_operator_name | |
812 | PARAMS ((demangling_t, int, int *)); | |
813 | static status_t demangle_special_name | |
814 | PARAMS ((demangling_t)); | |
815 | static status_t demangle_ctor_dtor_name | |
816 | PARAMS ((demangling_t)); | |
817 | static status_t demangle_type_ptr | |
818 | PARAMS ((demangling_t)); | |
819 | static status_t demangle_type | |
820 | PARAMS ((demangling_t)); | |
821 | static status_t demangle_CV_qualifiers | |
822 | PARAMS ((demangling_t, dyn_string_t)); | |
823 | static status_t demangle_builtin_type | |
824 | PARAMS ((demangling_t)); | |
825 | static status_t demangle_function_type | |
826 | PARAMS ((demangling_t, int)); | |
827 | static status_t demangle_bare_function_type | |
828 | PARAMS ((demangling_t, int)); | |
829 | static status_t demangle_class_enum_type | |
830 | PARAMS ((demangling_t, int *)); | |
831 | static status_t demangle_array_type | |
832 | PARAMS ((demangling_t)); | |
833 | static status_t demangle_template_param | |
834 | PARAMS ((demangling_t, int *)); | |
835 | static status_t demangle_template_args | |
836 | PARAMS ((demangling_t)); | |
837 | static status_t demangle_literal | |
838 | PARAMS ((demangling_t)); | |
839 | static status_t demangle_template_arg | |
840 | PARAMS ((demangling_t)); | |
841 | static status_t demangle_expression | |
69197e7e | 842 | PARAMS ((demangling_t)); |
69afa80d AS |
843 | static status_t demangle_scope_expression |
844 | PARAMS ((demangling_t)); | |
845 | static status_t demangle_expr_primary | |
69197e7e | 846 | PARAMS ((demangling_t)); |
69afa80d AS |
847 | static status_t demangle_substitution |
848 | PARAMS ((demangling_t, int *, int *)); | |
849 | static status_t demangle_local_name | |
850 | PARAMS ((demangling_t)); | |
851 | static status_t demangle_discriminator | |
852 | PARAMS ((demangling_t, int)); | |
7eb23b1f | 853 | static status_t cp_demangle |
051664b0 | 854 | PARAMS ((const char *, dyn_string_t)); |
838f8562 | 855 | #ifdef IN_LIBGCC2 |
051664b0 AS |
856 | static status_t cp_demangle_type |
857 | PARAMS ((const char*, dyn_string_t)); | |
838f8562 | 858 | #endif |
69afa80d AS |
859 | |
860 | /* When passed to demangle_bare_function_type, indicates that the | |
861 | function's return type is not encoded before its parameter types. */ | |
862 | #define BFT_NO_RETURN_TYPE -1 | |
863 | ||
864 | /* Check that the next character is C. If so, consume it. If not, | |
865 | return an error. */ | |
866 | ||
867 | static status_t | |
868 | demangle_char (dm, c) | |
869 | demangling_t dm; | |
69197e7e | 870 | int c; |
69afa80d AS |
871 | { |
872 | static char *error_message = NULL; | |
873 | ||
874 | if (peek_char (dm) == c) | |
875 | { | |
876 | advance_char (dm); | |
877 | return STATUS_OK; | |
878 | } | |
879 | else | |
880 | { | |
881 | if (error_message == NULL) | |
882 | error_message = strdup ("Expected ?"); | |
883 | error_message[9] = c; | |
884 | return error_message; | |
885 | } | |
886 | } | |
887 | ||
888 | /* Demangles and emits a <mangled-name>. | |
889 | ||
890 | <mangled-name> ::= _Z <encoding> */ | |
891 | ||
892 | static status_t | |
893 | demangle_mangled_name (dm) | |
894 | demangling_t dm; | |
895 | { | |
896 | DEMANGLE_TRACE ("mangled-name", dm); | |
897 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
898 | RETURN_IF_ERROR (demangle_char (dm, 'Z')); | |
899 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
900 | return STATUS_OK; | |
901 | } | |
902 | ||
903 | /* Demangles and emits an <encoding>. | |
904 | ||
905 | <encoding> ::= <function name> <bare-function-type> | |
906 | ::= <data name> | |
bece74bd | 907 | ::= <special-name> */ |
69afa80d AS |
908 | |
909 | static status_t | |
910 | demangle_encoding (dm) | |
911 | demangling_t dm; | |
912 | { | |
913 | int template_p; | |
69afa80d | 914 | int start_position; |
69afa80d AS |
915 | template_arg_list_t old_arg_list = current_template_arg_list (dm); |
916 | char peek = peek_char (dm); | |
917 | ||
918 | DEMANGLE_TRACE ("encoding", dm); | |
919 | ||
920 | /* Remember where the name starts. If it turns out to be a template | |
921 | function, we'll have to insert the return type here. */ | |
922 | start_position = result_length (dm); | |
923 | ||
bece74bd | 924 | if (peek == 'G' || peek == 'T') |
69afa80d AS |
925 | RETURN_IF_ERROR (demangle_special_name (dm)); |
926 | else | |
927 | { | |
928 | /* Now demangle the name. */ | |
929 | RETURN_IF_ERROR (demangle_name (dm, &template_p)); | |
930 | ||
931 | /* If there's anything left, the name was a function name, with | |
932 | maybe its return type, and its parameters types, following. */ | |
933 | if (!end_of_name_p (dm) | |
934 | && peek_char (dm) != 'E') | |
935 | { | |
936 | if (template_p) | |
937 | /* Template functions have their return type encoded. The | |
938 | return type should be inserted at start_position. */ | |
939 | RETURN_IF_ERROR | |
940 | (demangle_bare_function_type (dm, start_position)); | |
941 | else | |
942 | /* Non-template functions don't have their return type | |
943 | encoded. */ | |
944 | RETURN_IF_ERROR | |
945 | (demangle_bare_function_type (dm, BFT_NO_RETURN_TYPE)); | |
946 | } | |
69afa80d AS |
947 | } |
948 | ||
949 | /* Pop off template argument lists that were built during the | |
950 | mangling of this name, to restore the old template context. */ | |
951 | pop_to_template_arg_list (dm, old_arg_list); | |
952 | ||
953 | return STATUS_OK; | |
954 | } | |
955 | ||
956 | /* Demangles and emits a <name>. | |
957 | ||
958 | <name> ::= <unscoped-name> | |
959 | ::= <unscoped-template-name> <template-args> | |
960 | ::= <nested-name> | |
961 | ::= <local-name> | |
962 | ||
963 | <unscoped-name> ::= <unqualified-name> | |
964 | ::= St <unqualified-name> # ::std:: | |
965 | ||
966 | <unscoped-template-name> | |
967 | ::= <unscoped-name> | |
968 | ::= <substitution> */ | |
969 | ||
970 | static status_t | |
971 | demangle_name (dm, template_p) | |
972 | demangling_t dm; | |
973 | int *template_p; | |
974 | { | |
975 | int special_std_substitution; | |
976 | int start = substitution_start (dm); | |
977 | ||
978 | DEMANGLE_TRACE ("name", dm); | |
979 | ||
980 | switch (peek_char (dm)) | |
981 | { | |
982 | case 'N': | |
983 | /* This is a <nested-name>. */ | |
984 | RETURN_IF_ERROR (demangle_nested_name (dm, template_p)); | |
985 | break; | |
986 | ||
987 | case 'Z': | |
988 | RETURN_IF_ERROR (demangle_local_name (dm)); | |
989 | break; | |
990 | ||
991 | case 'S': | |
992 | /* The `St' substitution allows a name nested in std:: to appear | |
bece74bd | 993 | without being enclosed in a nested name. */ |
69afa80d AS |
994 | if (peek_char_next (dm) == 't') |
995 | { | |
996 | (void) next_char (dm); | |
997 | (void) next_char (dm); | |
051664b0 | 998 | RETURN_IF_ERROR (result_append (dm, "std::")); |
69afa80d AS |
999 | RETURN_IF_ERROR (demangle_unqualified_name (dm)); |
1000 | } | |
1001 | else | |
1002 | { | |
1003 | RETURN_IF_ERROR (demangle_substitution (dm, template_p, | |
1004 | &special_std_substitution)); | |
1005 | if (special_std_substitution) | |
1006 | { | |
1007 | /* This was the magic `std::' substitution. We can have | |
1008 | a <nested-name> or one of the unscoped names | |
1009 | following. */ | |
051664b0 | 1010 | RETURN_IF_ERROR (result_append (dm, "::")); |
69afa80d AS |
1011 | RETURN_IF_ERROR (demangle_name (dm, template_p)); |
1012 | } | |
1013 | } | |
bece74bd AS |
1014 | /* Check if a template argument list immediately follows. |
1015 | If so, then we just demangled an <unqualified-template-name>. */ | |
1016 | if (peek_char (dm) == 'I') | |
1017 | { | |
1018 | RETURN_IF_ERROR (substitution_add (dm, start, 0, | |
1019 | NOT_TEMPLATE_PARM)); | |
1020 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
1021 | } | |
69afa80d AS |
1022 | break; |
1023 | ||
1024 | default: | |
1025 | /* This is an <unscoped-name> or <unscoped-template-name>. */ | |
1026 | RETURN_IF_ERROR (demangle_unqualified_name (dm)); | |
1027 | ||
1028 | /* If the <unqualified-name> is followed by template args, this | |
1029 | is an <unscoped-template-name>. */ | |
1030 | if (peek_char (dm) == 'I') | |
1031 | { | |
1032 | /* Add a substitution for the unqualified template name. */ | |
051664b0 AS |
1033 | RETURN_IF_ERROR (substitution_add (dm, start, 0, |
1034 | NOT_TEMPLATE_PARM)); | |
69afa80d AS |
1035 | |
1036 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
1037 | *template_p = 1; | |
1038 | } | |
1039 | else | |
1040 | *template_p = 0; | |
1041 | ||
1042 | break; | |
1043 | } | |
1044 | ||
1045 | return STATUS_OK; | |
1046 | } | |
1047 | ||
1048 | /* Demangles and emits a <nested-name>. | |
1049 | ||
1050 | <nested-name> ::= N [<CV-qualifiers>] <prefix> <component> E */ | |
1051 | ||
1052 | static status_t | |
1053 | demangle_nested_name (dm, template_p) | |
1054 | demangling_t dm; | |
1055 | int *template_p; | |
1056 | { | |
1057 | char peek; | |
1058 | ||
1059 | DEMANGLE_TRACE ("nested-name", dm); | |
1060 | ||
1061 | RETURN_IF_ERROR (demangle_char (dm, 'N')); | |
1062 | ||
1063 | peek = peek_char (dm); | |
1064 | if (peek == 'r' || peek == 'V' || peek == 'K') | |
1065 | { | |
051664b0 AS |
1066 | status_t status; |
1067 | ||
69afa80d AS |
1068 | /* Snarf up and emit CV qualifiers. */ |
1069 | dyn_string_t cv_qualifiers = dyn_string_new (24); | |
051664b0 AS |
1070 | if (cv_qualifiers == NULL) |
1071 | return STATUS_ALLOCATION_FAILED; | |
1072 | ||
69afa80d | 1073 | demangle_CV_qualifiers (dm, cv_qualifiers); |
051664b0 | 1074 | status = result_append_string (dm, cv_qualifiers); |
69afa80d | 1075 | dyn_string_delete (cv_qualifiers); |
051664b0 AS |
1076 | RETURN_IF_ERROR (status); |
1077 | RETURN_IF_ERROR (result_append_space (dm)); | |
69afa80d AS |
1078 | } |
1079 | ||
1080 | RETURN_IF_ERROR (demangle_prefix (dm, template_p)); | |
1081 | /* No need to demangle the final <component>; demangle_prefix will | |
1082 | handle it. */ | |
1083 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
1084 | ||
1085 | return STATUS_OK; | |
1086 | } | |
1087 | ||
1088 | /* Demangles and emits a <prefix>. | |
1089 | ||
1090 | <prefix> ::= <prefix> <component> | |
1091 | ::= <template-prefix> <template-args> | |
1092 | ::= # empty | |
1093 | ::= <substitution> | |
1094 | ||
1095 | <template-prefix> ::= <prefix> | |
1096 | ::= <substitution> | |
1097 | ||
1098 | <component> ::= <unqualified-name> | |
1099 | ::= <local-name> */ | |
1100 | ||
1101 | static status_t | |
1102 | demangle_prefix (dm, template_p) | |
1103 | demangling_t dm; | |
1104 | int *template_p; | |
1105 | { | |
1106 | int start = substitution_start (dm); | |
1107 | int nested = 0; | |
1108 | ||
1109 | /* TEMPLATE_P is updated as we decend the nesting chain. After | |
1110 | <template-args>, it is set to non-zero; after everything else it | |
1111 | is set to zero. */ | |
1112 | ||
1113 | DEMANGLE_TRACE ("prefix", dm); | |
1114 | ||
1115 | while (1) | |
1116 | { | |
1117 | char peek; | |
1118 | int unused; | |
1119 | ||
1120 | if (end_of_name_p (dm)) | |
1121 | return "Unexpected end of name in <compound-name>."; | |
1122 | ||
1123 | peek = peek_char (dm); | |
1124 | ||
051664b0 | 1125 | if (IS_DIGIT ((unsigned char) peek) |
69afa80d AS |
1126 | || (peek >= 'a' && peek <= 'z') |
1127 | || peek == 'C' || peek == 'D' | |
1128 | || peek == 'S') | |
1129 | { | |
1130 | /* We have another level of scope qualification. */ | |
1131 | if (nested) | |
051664b0 | 1132 | RETURN_IF_ERROR (result_append (dm, "::")); |
69afa80d AS |
1133 | else |
1134 | nested = 1; | |
1135 | ||
1136 | if (peek == 'S') | |
1137 | /* The substitution determines whether this is a | |
1138 | template-id. */ | |
1139 | RETURN_IF_ERROR (demangle_substitution (dm, template_p, | |
1140 | &unused)); | |
1141 | else | |
1142 | { | |
1143 | RETURN_IF_ERROR (demangle_unqualified_name (dm)); | |
1144 | *template_p = 0; | |
1145 | } | |
1146 | } | |
1147 | else if (peek == 'Z') | |
1148 | RETURN_IF_ERROR (demangle_local_name (dm)); | |
1149 | else if (peek == 'I') | |
1150 | { | |
1151 | if (*template_p) | |
1152 | return STATUS_INTERNAL_ERROR; | |
1153 | /* The template name is a substitution candidate. */ | |
051664b0 | 1154 | RETURN_IF_ERROR (substitution_add (dm, start, 0, NOT_TEMPLATE_PARM)); |
69afa80d AS |
1155 | RETURN_IF_ERROR (demangle_template_args (dm)); |
1156 | *template_p = 1; | |
1157 | } | |
1158 | else if (peek == 'E') | |
1159 | /* All done. */ | |
1160 | return STATUS_OK; | |
1161 | else | |
1162 | return "Unexpected character in <compound-name>."; | |
1163 | ||
1164 | /* Add a new substitution for the prefix thus far. */ | |
051664b0 AS |
1165 | RETURN_IF_ERROR (substitution_add (dm, start, *template_p, |
1166 | NOT_TEMPLATE_PARM)); | |
69afa80d AS |
1167 | } |
1168 | } | |
1169 | ||
1170 | /* Demangles and emits an <unqualified-name>. If the | |
1171 | <unqualified-name> is a function and the first element in the | |
1172 | argument list should be taken to be its return type, | |
1173 | ENCODE_RETURN_TYPE is non-zero. | |
1174 | ||
1175 | <unqualified-name> ::= <operator-name> | |
1176 | ::= <special-name> | |
1177 | ::= <source-name> */ | |
1178 | ||
1179 | static status_t | |
1180 | demangle_unqualified_name (dm) | |
1181 | demangling_t dm; | |
1182 | { | |
1183 | char peek = peek_char (dm); | |
1184 | ||
1185 | DEMANGLE_TRACE ("unqualified-name", dm); | |
1186 | ||
051664b0 | 1187 | if (IS_DIGIT ((unsigned char) peek)) |
69afa80d AS |
1188 | RETURN_IF_ERROR (demangle_source_name (dm)); |
1189 | else if (peek >= 'a' && peek <= 'z') | |
1190 | { | |
1191 | int num_args; | |
1192 | RETURN_IF_ERROR (demangle_operator_name (dm, 0, &num_args)); | |
1193 | } | |
1194 | else if (peek == 'C' || peek == 'D') | |
1195 | RETURN_IF_ERROR (demangle_ctor_dtor_name (dm)); | |
1196 | else | |
1197 | return "Unexpected character in <unqualified-name>."; | |
1198 | ||
1199 | return STATUS_OK; | |
1200 | } | |
1201 | ||
1202 | /* Demangles and emits <source-name>. | |
1203 | ||
1204 | <source-name> ::= <length number> <identifier> */ | |
1205 | ||
1206 | static status_t | |
1207 | demangle_source_name (dm) | |
1208 | demangling_t dm; | |
1209 | { | |
1210 | int length; | |
1211 | ||
1212 | DEMANGLE_TRACE ("source-name", dm); | |
1213 | ||
1214 | /* Decode the length of the identifier. */ | |
1215 | RETURN_IF_ERROR (demangle_number (dm, &length, 10, 0)); | |
1216 | if (length == 0) | |
1217 | return "Zero length in <source-name>."; | |
1218 | ||
1219 | /* Now the identifier itself. It's placed into last_source_name, | |
1220 | where it can be used to build a constructor or destructor name. */ | |
1221 | RETURN_IF_ERROR (demangle_identifier (dm, length, | |
1222 | dm->last_source_name)); | |
1223 | ||
1224 | /* Emit it. */ | |
051664b0 | 1225 | RETURN_IF_ERROR (result_append_string (dm, dm->last_source_name)); |
69afa80d AS |
1226 | |
1227 | return STATUS_OK; | |
1228 | } | |
1229 | ||
1230 | /* Demangles a number, either a <number> or a <positive-number> at the | |
1231 | current position, consuming all consecutive digit characters. Sets | |
1232 | *VALUE to the resulting numberand returns STATUS_OK. The number is | |
1233 | interpreted as BASE, which must be either 10 or 36. If IS_SIGNED | |
1234 | is non-zero, negative numbers -- prefixed with `n' -- are accepted. | |
1235 | ||
1236 | <number> ::= [n] <positive-number> | |
1237 | ||
1238 | <positive-number> ::= <decimal integer> */ | |
1239 | ||
1240 | static status_t | |
1241 | demangle_number (dm, value, base, is_signed) | |
1242 | demangling_t dm; | |
1243 | int *value; | |
1244 | int base; | |
1245 | int is_signed; | |
1246 | { | |
1247 | dyn_string_t number = dyn_string_new (10); | |
1248 | ||
1249 | DEMANGLE_TRACE ("number", dm); | |
1250 | ||
051664b0 AS |
1251 | if (number == NULL) |
1252 | return STATUS_ALLOCATION_FAILED; | |
1253 | ||
69afa80d AS |
1254 | demangle_number_literally (dm, number, base, is_signed); |
1255 | *value = strtol (dyn_string_buf (number), NULL, base); | |
1256 | dyn_string_delete (number); | |
1257 | ||
1258 | return STATUS_OK; | |
1259 | } | |
1260 | ||
1261 | /* Demangles a number at the current position. The digits (and minus | |
1262 | sign, if present) that make up the number are appended to STR. | |
1263 | Only base-BASE digits are accepted; BASE must be either 10 or 36. | |
1264 | If IS_SIGNED, negative numbers -- prefixed with `n' -- are | |
1265 | accepted. Does not consume a trailing underscore or other | |
1266 | terminating character. */ | |
1267 | ||
1268 | static status_t | |
1269 | demangle_number_literally (dm, str, base, is_signed) | |
1270 | demangling_t dm; | |
1271 | dyn_string_t str; | |
1272 | int base; | |
1273 | int is_signed; | |
1274 | { | |
1275 | DEMANGLE_TRACE ("number*", dm); | |
1276 | ||
1277 | if (base != 10 && base != 36) | |
1278 | return STATUS_INTERNAL_ERROR; | |
1279 | ||
1280 | /* An `n' denotes a negative number. */ | |
1281 | if (is_signed && peek_char (dm) == 'n') | |
1282 | { | |
1283 | /* Skip past the n. */ | |
1284 | advance_char (dm); | |
1285 | /* The normal way to write a negative number is with a minus | |
1286 | sign. */ | |
051664b0 AS |
1287 | if (!dyn_string_append_char (str, '-')) |
1288 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1289 | } |
1290 | ||
1291 | /* Loop until we hit a non-digit. */ | |
1292 | while (1) | |
1293 | { | |
1294 | char peek = peek_char (dm); | |
051664b0 | 1295 | if (IS_DIGIT ((unsigned char) peek) |
69afa80d | 1296 | || (base == 36 && peek >= 'A' && peek <= 'Z')) |
051664b0 AS |
1297 | { |
1298 | /* Accumulate digits. */ | |
1299 | if (!dyn_string_append_char (str, next_char (dm))) | |
1300 | return STATUS_ALLOCATION_FAILED; | |
1301 | } | |
69afa80d AS |
1302 | else |
1303 | /* Not a digit? All done. */ | |
1304 | break; | |
1305 | } | |
1306 | ||
1307 | return STATUS_OK; | |
1308 | } | |
1309 | ||
1310 | /* Demangles an identifier at the current position of LENGTH | |
1311 | characters and places it in IDENTIFIER. */ | |
1312 | ||
1313 | static status_t | |
1314 | demangle_identifier (dm, length, identifier) | |
1315 | demangling_t dm; | |
1316 | int length; | |
1317 | dyn_string_t identifier; | |
1318 | { | |
1319 | DEMANGLE_TRACE ("identifier", dm); | |
1320 | ||
1321 | dyn_string_clear (identifier); | |
051664b0 AS |
1322 | if (!dyn_string_resize (identifier, length)) |
1323 | return STATUS_ALLOCATION_FAILED; | |
1324 | ||
69afa80d AS |
1325 | while (length-- > 0) |
1326 | { | |
1327 | if (end_of_name_p (dm)) | |
1328 | return "Unexpected end of name in <identifier>."; | |
051664b0 AS |
1329 | if (!dyn_string_append_char (identifier, next_char (dm))) |
1330 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1331 | } |
1332 | ||
1333 | return STATUS_OK; | |
1334 | } | |
1335 | ||
1336 | /* Demangles and emits an <operator-name>. If SHORT_NAME is non-zero, | |
1337 | the short form is emitted; otherwise the full source form | |
1338 | (`operator +' etc.) is emitted. *NUM_ARGS is set to the number of | |
1339 | operands that the operator takes. | |
1340 | ||
1341 | <operator-name> | |
1342 | ::= nw # new | |
1343 | ::= na # new[] | |
1344 | ::= dl # delete | |
1345 | ::= da # delete[] | |
1346 | ::= ps # + (unary) | |
1347 | ::= ng # - (unary) | |
1348 | ::= ad # & (unary) | |
1349 | ::= de # * (unary) | |
1350 | ::= co # ~ | |
1351 | ::= pl # + | |
1352 | ::= mi # - | |
1353 | ::= ml # * | |
1354 | ::= dv # / | |
1355 | ::= rm # % | |
1356 | ::= an # & | |
1357 | ::= or # | | |
1358 | ::= eo # ^ | |
1359 | ::= aS # = | |
1360 | ::= pL # += | |
1361 | ::= mI # -= | |
1362 | ::= mL # *= | |
1363 | ::= dV # /= | |
1364 | ::= rM # %= | |
1365 | ::= aN # &= | |
1366 | ::= oR # |= | |
1367 | ::= eO # ^= | |
1368 | ::= ls # << | |
1369 | ::= rs # >> | |
1370 | ::= lS # <<= | |
1371 | ::= rS # >>= | |
1372 | ::= eq # == | |
1373 | ::= ne # != | |
1374 | ::= lt # < | |
1375 | ::= gt # > | |
1376 | ::= le # <= | |
1377 | ::= ge # >= | |
1378 | ::= nt # ! | |
1379 | ::= aa # && | |
1380 | ::= oo # || | |
1381 | ::= pp # ++ | |
1382 | ::= mm # -- | |
1383 | ::= cm # , | |
1384 | ::= pm # ->* | |
1385 | ::= pt # -> | |
1386 | ::= cl # () | |
1387 | ::= ix # [] | |
1388 | ::= qu # ? | |
1389 | ::= sz # sizeof | |
1390 | ::= cv <type> # cast | |
1391 | ::= vx <source-name> # vendor extended operator */ | |
1392 | ||
1393 | static status_t | |
1394 | demangle_operator_name (dm, short_name, num_args) | |
1395 | demangling_t dm; | |
1396 | int short_name; | |
1397 | int *num_args; | |
1398 | { | |
1399 | struct operator_code | |
1400 | { | |
1401 | /* The mangled code for this operator. */ | |
7eb23b1f | 1402 | const char *code; |
69afa80d | 1403 | /* The source name of this operator. */ |
7eb23b1f | 1404 | const char *name; |
69afa80d AS |
1405 | /* The number of arguments this operator takes. */ |
1406 | int num_args; | |
1407 | }; | |
1408 | ||
7eb23b1f | 1409 | static const struct operator_code operators[] = |
69afa80d AS |
1410 | { |
1411 | { "aN", "&=" , 2 }, | |
1412 | { "aS", "=" , 2 }, | |
1413 | { "aa", "&&" , 2 }, | |
1414 | { "ad", "&" , 1 }, | |
1415 | { "an", "&" , 2 }, | |
1416 | { "cl", "()" , 0 }, | |
1417 | { "cm", "," , 2 }, | |
1418 | { "co", "~" , 1 }, | |
1419 | { "dV", "/=" , 2 }, | |
fe06b696 | 1420 | { "da", " delete[]", 1 }, |
69afa80d | 1421 | { "de", "*" , 1 }, |
fe06b696 | 1422 | { "dl", " delete" , 1 }, |
69afa80d AS |
1423 | { "dv", "/" , 2 }, |
1424 | { "eO", "^=" , 2 }, | |
1425 | { "eo", "^" , 2 }, | |
1426 | { "eq", "==" , 2 }, | |
1427 | { "ge", ">=" , 2 }, | |
1428 | { "gt", ">" , 2 }, | |
1429 | { "ix", "[]" , 2 }, | |
1430 | { "lS", "<<=" , 2 }, | |
1431 | { "le", "<=" , 2 }, | |
1432 | { "ls", "<<" , 2 }, | |
1433 | { "lt", "<" , 2 }, | |
1434 | { "mI", "-=" , 2 }, | |
1435 | { "mL", "*=" , 2 }, | |
1436 | { "mi", "-" , 2 }, | |
1437 | { "ml", "*" , 2 }, | |
1438 | { "mm", "--" , 1 }, | |
fe06b696 | 1439 | { "na", " new[]" , 1 }, |
69afa80d AS |
1440 | { "ne", "!=" , 2 }, |
1441 | { "ng", "-" , 1 }, | |
1442 | { "nt", "!" , 1 }, | |
fe06b696 | 1443 | { "nw", " new" , 1 }, |
69afa80d AS |
1444 | { "oR", "|=" , 2 }, |
1445 | { "oo", "||" , 2 }, | |
1446 | { "or", "|" , 2 }, | |
1447 | { "pL", "+=" , 2 }, | |
1448 | { "pl", "+" , 2 }, | |
1449 | { "pm", "->*" , 2 }, | |
1450 | { "pp", "++" , 1 }, | |
1451 | { "ps", "+" , 1 }, | |
1452 | { "qu", "?" , 3 }, | |
1453 | { "rM", "%=" , 2 }, | |
1454 | { "rS", ">>=" , 2 }, | |
1455 | { "rm", "%" , 2 }, | |
1456 | { "rs", ">>" , 2 }, | |
fe06b696 | 1457 | { "sz", " sizeof" , 1 } |
69afa80d AS |
1458 | }; |
1459 | ||
1460 | const int num_operators = | |
1461 | sizeof (operators) / sizeof (struct operator_code); | |
1462 | ||
1463 | int c0 = next_char (dm); | |
1464 | int c1 = next_char (dm); | |
7eb23b1f KG |
1465 | const struct operator_code* p1 = operators; |
1466 | const struct operator_code* p2 = operators + num_operators; | |
69afa80d AS |
1467 | |
1468 | DEMANGLE_TRACE ("operator-name", dm); | |
1469 | ||
1470 | /* Is this a vendor extended operator? */ | |
1471 | if (c0 == 'v' && c1 == 'x') | |
1472 | { | |
051664b0 | 1473 | RETURN_IF_ERROR (result_append (dm, "operator")); |
69afa80d AS |
1474 | RETURN_IF_ERROR (demangle_source_name (dm)); |
1475 | *num_args = 0; | |
1476 | return STATUS_OK; | |
1477 | } | |
1478 | ||
1479 | /* Is this a conversion operator? */ | |
1480 | if (c0 == 'c' && c1 == 'v') | |
1481 | { | |
051664b0 | 1482 | RETURN_IF_ERROR (result_append (dm, "operator ")); |
69afa80d AS |
1483 | /* Demangle the converted-to type. */ |
1484 | RETURN_IF_ERROR (demangle_type (dm)); | |
1485 | *num_args = 0; | |
1486 | return STATUS_OK; | |
1487 | } | |
1488 | ||
1489 | /* Perform a binary search for the operator code. */ | |
1490 | while (1) | |
1491 | { | |
7eb23b1f | 1492 | const struct operator_code* p = p1 + (p2 - p1) / 2; |
69afa80d AS |
1493 | char match0 = p->code[0]; |
1494 | char match1 = p->code[1]; | |
1495 | ||
1496 | if (c0 == match0 && c1 == match1) | |
1497 | /* Found it. */ | |
1498 | { | |
1499 | if (!short_name) | |
051664b0 AS |
1500 | RETURN_IF_ERROR (result_append (dm, "operator")); |
1501 | RETURN_IF_ERROR (result_append (dm, p->name)); | |
69afa80d AS |
1502 | *num_args = p->num_args; |
1503 | ||
1504 | return STATUS_OK; | |
1505 | } | |
1506 | ||
1507 | if (p == p1) | |
1508 | /* Couldn't find it. */ | |
1509 | return "Unknown code in <operator-name>."; | |
1510 | ||
1511 | /* Try again. */ | |
1512 | if (c0 < match0 || (c0 == match0 && c1 < match1)) | |
1513 | p2 = p; | |
1514 | else | |
1515 | p1 = p; | |
1516 | } | |
1517 | } | |
1518 | ||
1519 | /* Demangles and emits a <special-name>. | |
1520 | ||
1521 | <special-name> ::= GV <object name> # Guard variable | |
1522 | ::= Th[n] <offset number> _ <base name> <base encoding> | |
1523 | # non-virtual base override thunk | |
1524 | ::= Tv[n] <offset number> _ <vcall offset number> | |
1525 | _ <base encoding> | |
1526 | # virtual base override thunk | |
1527 | ::= TV <type> # virtual table | |
1528 | ::= TT <type> # VTT | |
1529 | ::= TI <type> # typeinfo structure | |
1530 | ::= TS <type> # typeinfo name | |
1531 | ||
fe06b696 | 1532 | Also demangles the special g++ manglings, |
69afa80d AS |
1533 | |
1534 | <special-name> ::= CT <type> <offset number> _ <base type> | |
fe06b696 ZW |
1535 | # construction vtable |
1536 | ::= TF <type> # typeinfo function (old ABI only) | |
1537 | ::= TJ <type> # java Class structure */ | |
69afa80d AS |
1538 | |
1539 | static status_t | |
1540 | demangle_special_name (dm) | |
1541 | demangling_t dm; | |
1542 | { | |
1543 | dyn_string_t number; | |
1544 | int unused; | |
1545 | char peek = peek_char (dm); | |
1546 | ||
1547 | DEMANGLE_TRACE ("special-name", dm); | |
1548 | ||
1549 | if (peek == 'G') | |
1550 | { | |
1551 | /* A guard variable name. Consume the G. */ | |
1552 | advance_char (dm); | |
1553 | RETURN_IF_ERROR (demangle_char (dm, 'V')); | |
051664b0 | 1554 | RETURN_IF_ERROR (result_append (dm, "guard variable for ")); |
69afa80d AS |
1555 | RETURN_IF_ERROR (demangle_name (dm, &unused)); |
1556 | } | |
1557 | else if (peek == 'T') | |
1558 | { | |
051664b0 AS |
1559 | status_t status = STATUS_OK; |
1560 | ||
69afa80d AS |
1561 | /* Other C++ implementation miscellania. Consume the T. */ |
1562 | advance_char (dm); | |
1563 | ||
1564 | switch (peek_char (dm)) | |
1565 | { | |
1566 | case 'V': | |
1567 | /* Virtual table. */ | |
1568 | advance_char (dm); | |
051664b0 | 1569 | RETURN_IF_ERROR (result_append (dm, "vtable for ")); |
69afa80d AS |
1570 | RETURN_IF_ERROR (demangle_type (dm)); |
1571 | break; | |
1572 | ||
1573 | case 'T': | |
1574 | /* VTT structure. */ | |
1575 | advance_char (dm); | |
051664b0 | 1576 | RETURN_IF_ERROR (result_append (dm, "VTT for ")); |
69afa80d AS |
1577 | RETURN_IF_ERROR (demangle_type (dm)); |
1578 | break; | |
1579 | ||
1580 | case 'I': | |
1581 | /* Typeinfo structure. */ | |
1582 | advance_char (dm); | |
051664b0 | 1583 | RETURN_IF_ERROR (result_append (dm, "typeinfo for ")); |
69afa80d AS |
1584 | RETURN_IF_ERROR (demangle_type (dm)); |
1585 | break; | |
1586 | ||
fe06b696 ZW |
1587 | case 'F': |
1588 | /* Typeinfo function. Used only in old ABI with new mangling. */ | |
1589 | advance_char (dm); | |
051664b0 | 1590 | RETURN_IF_ERROR (result_append (dm, "typeinfo fn for ")); |
fe06b696 ZW |
1591 | RETURN_IF_ERROR (demangle_type (dm)); |
1592 | break; | |
1593 | ||
69afa80d AS |
1594 | case 'S': |
1595 | /* Character string containing type name, used in typeinfo. */ | |
1596 | advance_char (dm); | |
051664b0 | 1597 | RETURN_IF_ERROR (result_append (dm, "typeinfo name for ")); |
69afa80d AS |
1598 | RETURN_IF_ERROR (demangle_type (dm)); |
1599 | break; | |
1600 | ||
fe06b696 ZW |
1601 | case 'J': |
1602 | /* The java Class variable corresponding to a C++ class. */ | |
1603 | advance_char (dm); | |
051664b0 | 1604 | RETURN_IF_ERROR (result_append (dm, "java Class for ")); |
fe06b696 ZW |
1605 | RETURN_IF_ERROR (demangle_type (dm)); |
1606 | break; | |
1607 | ||
69afa80d AS |
1608 | case 'h': |
1609 | /* Non-virtual thunk. */ | |
1610 | advance_char (dm); | |
051664b0 | 1611 | RETURN_IF_ERROR (result_append (dm, "non-virtual thunk")); |
69afa80d AS |
1612 | /* Demangle and emit the offset. */ |
1613 | number = dyn_string_new (4); | |
051664b0 AS |
1614 | if (number == NULL) |
1615 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1616 | demangle_number_literally (dm, number, 10, 1); |
1617 | /* Don't display the offset unless in verbose mode. */ | |
1618 | if (flag_verbose) | |
1619 | { | |
051664b0 AS |
1620 | status = result_append_char (dm, ' '); |
1621 | if (STATUS_NO_ERROR (status)) | |
1622 | status = result_append_string (dm, number); | |
69afa80d AS |
1623 | } |
1624 | dyn_string_delete (number); | |
051664b0 | 1625 | RETURN_IF_ERROR (status); |
69afa80d AS |
1626 | /* Demangle the separator. */ |
1627 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1628 | /* Demangle and emit the target name and function type. */ | |
051664b0 | 1629 | RETURN_IF_ERROR (result_append (dm, " to ")); |
69afa80d AS |
1630 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1631 | break; | |
1632 | ||
1633 | case 'v': | |
1634 | /* Virtual thunk. */ | |
1635 | advance_char (dm); | |
051664b0 | 1636 | RETURN_IF_ERROR (result_append (dm, "virtual thunk ")); |
69afa80d AS |
1637 | /* Demangle and emit the offset. */ |
1638 | number = dyn_string_new (4); | |
051664b0 AS |
1639 | if (number == NULL) |
1640 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1641 | demangle_number_literally (dm, number, 10, 1); |
1642 | /* Don't display the offset unless in verbose mode. */ | |
1643 | if (flag_verbose) | |
1644 | { | |
051664b0 AS |
1645 | status = result_append_string (dm, number); |
1646 | if (STATUS_NO_ERROR (status)) | |
1647 | result_append_char (dm, ' '); | |
69afa80d AS |
1648 | } |
1649 | dyn_string_delete (number); | |
051664b0 | 1650 | RETURN_IF_ERROR (status); |
69afa80d AS |
1651 | /* Demangle the separator. */ |
1652 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1653 | /* Demangle and emit the vcall offset. */ | |
1654 | number = dyn_string_new (4); | |
051664b0 AS |
1655 | if (number == NULL) |
1656 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1657 | demangle_number_literally (dm, number, 10, 1); |
1658 | /* Don't display the vcall offset unless in verbose mode. */ | |
1659 | if (flag_verbose) | |
1660 | { | |
051664b0 AS |
1661 | status = result_append_string (dm, number); |
1662 | if (STATUS_NO_ERROR (status)) | |
1663 | status = result_append_char (dm, ' '); | |
69afa80d AS |
1664 | } |
1665 | dyn_string_delete (number); | |
051664b0 | 1666 | RETURN_IF_ERROR (status); |
69afa80d AS |
1667 | /* Demangle the separator. */ |
1668 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1669 | /* Demangle and emit the target function. */ | |
051664b0 | 1670 | RETURN_IF_ERROR (result_append (dm, "to ")); |
69afa80d AS |
1671 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1672 | break; | |
1673 | ||
1674 | case 'C': | |
1675 | /* TC is a special g++ mangling for a construction vtable. */ | |
1676 | if (!flag_strict) | |
1677 | { | |
229b8ec7 AS |
1678 | dyn_string_t derived_type; |
1679 | ||
69afa80d | 1680 | advance_char (dm); |
051664b0 | 1681 | RETURN_IF_ERROR (result_append (dm, "construction vtable for ")); |
229b8ec7 AS |
1682 | |
1683 | /* Demangle the derived type off to the side. */ | |
1684 | RETURN_IF_ERROR (result_push (dm)); | |
69afa80d | 1685 | RETURN_IF_ERROR (demangle_type (dm)); |
229b8ec7 AS |
1686 | derived_type = (dyn_string_t) result_pop (dm); |
1687 | ||
69afa80d AS |
1688 | /* Demangle the offset. */ |
1689 | number = dyn_string_new (4); | |
051664b0 | 1690 | if (number == NULL) |
229b8ec7 AS |
1691 | { |
1692 | dyn_string_delete (derived_type); | |
1693 | return STATUS_ALLOCATION_FAILED; | |
1694 | } | |
69afa80d AS |
1695 | demangle_number_literally (dm, number, 10, 1); |
1696 | /* Demangle the underscore separator. */ | |
229b8ec7 AS |
1697 | status = demangle_char (dm, '_'); |
1698 | ||
69afa80d | 1699 | /* Demangle the base type. */ |
229b8ec7 AS |
1700 | if (STATUS_NO_ERROR (status)) |
1701 | status = demangle_type (dm); | |
1702 | ||
1703 | /* Emit the derived type. */ | |
1704 | if (STATUS_NO_ERROR (status)) | |
1705 | status = result_append (dm, "-in-"); | |
1706 | if (STATUS_NO_ERROR (status)) | |
1707 | status = result_append_string (dm, derived_type); | |
1708 | dyn_string_delete (derived_type); | |
1709 | ||
69afa80d AS |
1710 | /* Don't display the offset unless in verbose mode. */ |
1711 | if (flag_verbose) | |
1712 | { | |
051664b0 AS |
1713 | status = result_append_char (dm, ' '); |
1714 | if (STATUS_NO_ERROR (status)) | |
1715 | result_append_string (dm, number); | |
69afa80d AS |
1716 | } |
1717 | dyn_string_delete (number); | |
051664b0 | 1718 | RETURN_IF_ERROR (status); |
69afa80d AS |
1719 | break; |
1720 | } | |
1721 | /* If flag_strict, fall through. */ | |
1722 | ||
1723 | default: | |
1724 | return "Unrecognized <special-name>."; | |
1725 | } | |
1726 | } | |
1727 | else | |
1728 | return STATUS_ERROR; | |
1729 | ||
1730 | return STATUS_OK; | |
1731 | } | |
1732 | ||
1733 | /* Demangles and emits a <ctor-dtor-name>. | |
1734 | ||
1735 | <ctor-dtor-name> | |
1736 | ::= C1 # complete object (in-charge) ctor | |
1737 | ::= C2 # base object (not-in-charge) ctor | |
1738 | ::= C3 # complete object (in-charge) allocating ctor | |
1739 | ::= C4 # base object (not-in-charge) allocating ctor | |
1740 | ::= D0 # deleting (in-charge) dtor | |
1741 | ::= D1 # complete object (in-charge) dtor | |
1742 | ::= D2 # base object (not-in-charge) dtor */ | |
1743 | ||
1744 | static status_t | |
1745 | demangle_ctor_dtor_name (dm) | |
1746 | demangling_t dm; | |
1747 | { | |
1748 | static const char *const ctor_flavors[] = | |
1749 | { | |
1750 | "in-charge", | |
1751 | "not-in-charge", | |
1752 | "in-charge allocating", | |
1753 | "not-in-charge allocating" | |
1754 | }; | |
1755 | static const char *const dtor_flavors[] = | |
1756 | { | |
1757 | "in-charge deleting", | |
1758 | "in-charge", | |
1759 | "not-in-charge" | |
1760 | }; | |
1761 | ||
1762 | int flavor; | |
1763 | char peek = peek_char (dm); | |
1764 | ||
1765 | DEMANGLE_TRACE ("ctor-dtor-name", dm); | |
1766 | ||
1767 | if (peek == 'C') | |
1768 | { | |
1769 | /* A constructor name. Consume the C. */ | |
1770 | advance_char (dm); | |
1771 | if (peek_char (dm) < '1' || peek_char (dm) > '4') | |
1772 | return "Unrecognized constructor."; | |
051664b0 | 1773 | RETURN_IF_ERROR (result_append_string (dm, dm->last_source_name)); |
69afa80d AS |
1774 | /* Print the flavor of the constructor if in verbose mode. */ |
1775 | flavor = next_char (dm) - '1'; | |
1776 | if (flag_verbose) | |
1777 | { | |
051664b0 AS |
1778 | RETURN_IF_ERROR (result_append (dm, "[")); |
1779 | RETURN_IF_ERROR (result_append (dm, ctor_flavors[flavor])); | |
1780 | RETURN_IF_ERROR (result_append_char (dm, ']')); | |
69afa80d AS |
1781 | } |
1782 | } | |
1783 | else if (peek == 'D') | |
1784 | { | |
1785 | /* A destructor name. Consume the D. */ | |
1786 | advance_char (dm); | |
1787 | if (peek_char (dm) < '0' || peek_char (dm) > '2') | |
1788 | return "Unrecognized destructor."; | |
051664b0 AS |
1789 | RETURN_IF_ERROR (result_append_char (dm, '~')); |
1790 | RETURN_IF_ERROR (result_append_string (dm, dm->last_source_name)); | |
69afa80d AS |
1791 | /* Print the flavor of the destructor if in verbose mode. */ |
1792 | flavor = next_char (dm) - '0'; | |
1793 | if (flag_verbose) | |
1794 | { | |
051664b0 AS |
1795 | RETURN_IF_ERROR (result_append (dm, " [")); |
1796 | RETURN_IF_ERROR (result_append (dm, dtor_flavors[flavor])); | |
1797 | RETURN_IF_ERROR (result_append_char (dm, ']')); | |
69afa80d AS |
1798 | } |
1799 | } | |
1800 | else | |
1801 | return STATUS_ERROR; | |
1802 | ||
1803 | return STATUS_OK; | |
1804 | } | |
1805 | ||
1806 | /* Handle pointer, reference, and pointer-to-member cases for | |
1807 | demangle_type. All consecutive `P's, `R's, and 'M's are joined to | |
1808 | build a pointer/reference type. We snarf all these, plus the | |
1809 | following <type>, all at once since we need to know whether we have | |
1810 | a pointer to data or pointer to function to construct the right | |
1811 | output syntax. C++'s pointer syntax is hairy. | |
1812 | ||
1813 | <type> ::= P <type> | |
1814 | ::= R <type> | |
1815 | ::= <pointer-to-member-type> | |
1816 | ||
1817 | <pointer-to-member-type> ::= M </class/ type> </member/ type> */ | |
1818 | ||
1819 | static status_t | |
1820 | demangle_type_ptr (dm) | |
1821 | demangling_t dm; | |
1822 | { | |
1823 | char next; | |
1824 | status_t status; | |
1825 | ||
1826 | /* Collect pointer symbols into this string. */ | |
1827 | dyn_string_t symbols = dyn_string_new (10); | |
1828 | ||
1829 | DEMANGLE_TRACE ("type*", dm); | |
1830 | ||
051664b0 AS |
1831 | if (symbols == NULL) |
1832 | return STATUS_ALLOCATION_FAILED; | |
1833 | ||
69afa80d AS |
1834 | /* Scan forward, collecting pointers and references into symbols, |
1835 | until we hit something else. Then emit the type. */ | |
1836 | while (1) | |
1837 | { | |
1838 | next = peek_char (dm); | |
1839 | if (next == 'P') | |
1840 | { | |
051664b0 AS |
1841 | if (!dyn_string_append_char (symbols, '*')) |
1842 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1843 | advance_char (dm); |
1844 | } | |
1845 | else if (next == 'R') | |
1846 | { | |
051664b0 AS |
1847 | if (!dyn_string_append_char (symbols, '&')) |
1848 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1849 | advance_char (dm); |
1850 | } | |
1851 | else if (next == 'M') | |
1852 | { | |
1853 | /* Pointer-to-member. */ | |
1854 | dyn_string_t class_type; | |
1855 | ||
1856 | /* Eat the 'M'. */ | |
1857 | advance_char (dm); | |
1858 | ||
1859 | /* Capture the type of which this is a pointer-to-member. */ | |
051664b0 | 1860 | RETURN_IF_ERROR (result_push (dm)); |
69afa80d AS |
1861 | RETURN_IF_ERROR (demangle_type (dm)); |
1862 | class_type = (dyn_string_t) result_pop (dm); | |
1863 | ||
1864 | /* Build the pointer-to-member notation. It comes before | |
1865 | other pointer and reference qualifiers -- */ | |
051664b0 AS |
1866 | if (!dyn_string_prepend_cstr (symbols, "::*")) |
1867 | return STATUS_ALLOCATION_FAILED; | |
1868 | if (!dyn_string_prepend (symbols, class_type)) | |
1869 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
1870 | dyn_string_delete (class_type); |
1871 | ||
1872 | if (peek_char (dm) == 'F') | |
1873 | continue; | |
1874 | ||
1875 | /* Demangle the type of the pointed-to member. */ | |
1876 | status = demangle_type (dm); | |
1877 | /* Make it pretty. */ | |
051664b0 AS |
1878 | if (STATUS_NO_ERROR (status)) |
1879 | status = result_append_space (dm); | |
69afa80d AS |
1880 | /* Add the pointer-to-member syntax, and other pointer and |
1881 | reference symbols. */ | |
051664b0 AS |
1882 | if (STATUS_NO_ERROR (status)) |
1883 | status = result_append_string (dm, symbols); | |
69afa80d AS |
1884 | /* Clean up. */ |
1885 | dyn_string_delete (symbols); | |
1886 | ||
1887 | RETURN_IF_ERROR (status); | |
1888 | return STATUS_OK; | |
1889 | } | |
1890 | else if (next == 'F') | |
1891 | { | |
1892 | /* Ooh, tricky, a pointer-to-function. */ | |
1893 | int position = result_length (dm); | |
051664b0 AS |
1894 | status = result_append_char (dm, '('); |
1895 | if (STATUS_NO_ERROR (status)) | |
1896 | status = result_append_string (dm, symbols); | |
1897 | if (STATUS_NO_ERROR (status)) | |
1898 | status = result_append_char (dm, ')'); | |
69afa80d | 1899 | dyn_string_delete (symbols); |
051664b0 | 1900 | RETURN_IF_ERROR (status); |
69afa80d AS |
1901 | |
1902 | RETURN_IF_ERROR (demangle_function_type (dm, position)); | |
1903 | return STATUS_OK; | |
1904 | } | |
1905 | else | |
1906 | { | |
1907 | /* No more pointe or reference tokens. Finish up. */ | |
1908 | status = demangle_type (dm); | |
1909 | ||
051664b0 AS |
1910 | if (STATUS_NO_ERROR (status)) |
1911 | status = result_append_string (dm, symbols); | |
69afa80d | 1912 | dyn_string_delete (symbols); |
051664b0 | 1913 | RETURN_IF_ERROR (status); |
69afa80d AS |
1914 | |
1915 | RETURN_IF_ERROR (status); | |
1916 | return STATUS_OK; | |
1917 | } | |
1918 | } | |
1919 | } | |
1920 | ||
1921 | /* Demangles and emits a <type>. | |
1922 | ||
1923 | <type> ::= <builtin-type> | |
1924 | ::= <function-type> | |
1925 | ::= <class-enum-type> | |
1926 | ::= <array-type> | |
1927 | ::= <pointer-to-member-type> | |
1928 | ::= <template-param> | |
1929 | ::= <CV-qualifiers> <type> | |
1930 | ::= P <type> # pointer-to | |
1931 | ::= R <type> # reference-to | |
1932 | ::= C <type> # complex pair (C 2000) | |
1933 | ::= G <type> # imaginary (C 2000) | |
1934 | ::= U <source-name> <type> # vendor extended type qualifier | |
1935 | ::= <substitution> */ | |
1936 | ||
1937 | static status_t | |
1938 | demangle_type (dm) | |
1939 | demangling_t dm; | |
1940 | { | |
1941 | int start = substitution_start (dm); | |
1942 | char peek = peek_char (dm); | |
bece74bd | 1943 | char peek_next; |
69afa80d AS |
1944 | int template_p = 0; |
1945 | int special_std_substitution; | |
1946 | int is_builtin_type = 0; | |
1947 | template_arg_list_t old_arg_list = current_template_arg_list (dm); | |
1948 | int template_parm = NOT_TEMPLATE_PARM; | |
1949 | ||
1950 | DEMANGLE_TRACE ("type", dm); | |
1951 | ||
1952 | /* A <class-enum-type> can start with a digit (a <source-name>), an | |
1953 | N (a <nested-name>), or a Z (a <local-name>). */ | |
051664b0 | 1954 | if (IS_DIGIT ((unsigned char) peek) || peek == 'N' || peek == 'Z') |
69afa80d AS |
1955 | RETURN_IF_ERROR (demangle_class_enum_type (dm, &template_p)); |
1956 | else if (peek >= 'a' && peek <= 'z') | |
1957 | { | |
1958 | RETURN_IF_ERROR (demangle_builtin_type (dm)); | |
1959 | is_builtin_type = 1; | |
1960 | } | |
1961 | else | |
1962 | switch (peek) | |
1963 | { | |
1964 | case 'r': | |
1965 | case 'V': | |
1966 | case 'K': | |
1967 | { | |
1968 | status_t status; | |
1969 | dyn_string_t cv_qualifiers = dyn_string_new (24); | |
051664b0 AS |
1970 | |
1971 | if (cv_qualifiers == NULL) | |
1972 | return STATUS_ALLOCATION_FAILED; | |
1973 | ||
69afa80d AS |
1974 | demangle_CV_qualifiers (dm, cv_qualifiers); |
1975 | ||
1976 | /* If the qualifiers apply to a pointer or reference, they | |
1977 | need to come after the whole qualified type. */ | |
1978 | if (peek_char (dm) == 'P' || peek_char (dm) == 'R') | |
1979 | { | |
1980 | status = demangle_type (dm); | |
051664b0 AS |
1981 | if (STATUS_NO_ERROR (status)) |
1982 | status = result_append_space (dm); | |
1983 | if (STATUS_NO_ERROR (status)) | |
1984 | status = result_append_string (dm, cv_qualifiers); | |
69afa80d AS |
1985 | } |
1986 | /* Otherwise, the qualifiers come first. */ | |
1987 | else | |
1988 | { | |
051664b0 AS |
1989 | status = result_append_string (dm, cv_qualifiers); |
1990 | if (STATUS_NO_ERROR (status)) | |
1991 | status = result_append_space (dm); | |
1992 | if (STATUS_NO_ERROR (status)) | |
1993 | status = demangle_type (dm); | |
69afa80d AS |
1994 | } |
1995 | ||
1996 | dyn_string_delete (cv_qualifiers); | |
1997 | RETURN_IF_ERROR (status); | |
1998 | } | |
1999 | break; | |
2000 | ||
2001 | case 'F': | |
2002 | return "Non-pointer or -reference function type."; | |
2003 | ||
2004 | case 'A': | |
2005 | RETURN_IF_ERROR (demangle_array_type (dm)); | |
2006 | break; | |
2007 | ||
2008 | case 'T': | |
2009 | RETURN_IF_ERROR (demangle_template_param (dm, &template_parm)); | |
2010 | break; | |
2011 | ||
2012 | case 'S': | |
bece74bd AS |
2013 | /* First check if this is a special substitution. If it is, |
2014 | this is a <class-enum-type>. Special substitutions have a | |
2015 | letter following the `S'; other substitutions have a digit | |
2016 | or underscore. */ | |
2017 | peek_next = peek_char_next (dm); | |
2018 | if (IS_DIGIT (peek_next) || peek_next == '_') | |
2019 | RETURN_IF_ERROR (demangle_substitution (dm, &template_p, | |
2020 | &special_std_substitution)); | |
2021 | else | |
2022 | demangle_class_enum_type (dm, &template_p); | |
69afa80d AS |
2023 | break; |
2024 | ||
2025 | case 'P': | |
2026 | case 'R': | |
2027 | case 'M': | |
2028 | RETURN_IF_ERROR (demangle_type_ptr (dm)); | |
2029 | break; | |
2030 | ||
2031 | case 'C': | |
2032 | /* A C99 complex type. */ | |
051664b0 | 2033 | RETURN_IF_ERROR (result_append (dm, "complex ")); |
69afa80d AS |
2034 | advance_char (dm); |
2035 | RETURN_IF_ERROR (demangle_type (dm)); | |
2036 | break; | |
2037 | ||
2038 | case 'G': | |
2039 | /* A C99 imaginary type. */ | |
051664b0 | 2040 | RETURN_IF_ERROR (result_append (dm, "imaginary ")); |
69afa80d AS |
2041 | advance_char (dm); |
2042 | RETURN_IF_ERROR (demangle_type (dm)); | |
2043 | break; | |
2044 | ||
2045 | case 'U': | |
2046 | /* Vendor extended type qualifier. */ | |
2047 | advance_char (dm); | |
2048 | RETURN_IF_ERROR (demangle_source_name (dm)); | |
051664b0 | 2049 | RETURN_IF_ERROR (result_append_char (dm, ' ')); |
69afa80d AS |
2050 | RETURN_IF_ERROR (demangle_type (dm)); |
2051 | break; | |
2052 | ||
2053 | default: | |
2054 | return "Unexpected character in <type>."; | |
2055 | } | |
2056 | ||
2057 | /* Unqualified builin types are not substitution candidates. */ | |
2058 | if (!is_builtin_type) | |
2059 | /* Add a new substitution for the type. If this type was a | |
2060 | <template-param>, pass its index since from the point of | |
2061 | substitutions, a <template-param> token is a substitution | |
2062 | candidate distinct from the type that is substituted for it. */ | |
051664b0 | 2063 | RETURN_IF_ERROR (substitution_add (dm, start, template_p, template_parm)); |
69afa80d AS |
2064 | |
2065 | /* Pop off template argument lists added during mangling of this | |
2066 | type. */ | |
2067 | pop_to_template_arg_list (dm, old_arg_list); | |
2068 | ||
2069 | return STATUS_OK; | |
2070 | } | |
2071 | ||
2072 | /* C++ source names of builtin types, indexed by the mangled code | |
2073 | letter's position in the alphabet ('a' -> 0, 'b' -> 1, etc). */ | |
2074 | static const char *const builtin_type_names[26] = | |
2075 | { | |
2076 | "signed char", /* a */ | |
2077 | "bool", /* b */ | |
2078 | "char", /* c */ | |
2079 | "double", /* d */ | |
2080 | "long double", /* e */ | |
2081 | "float", /* f */ | |
2082 | "__float128", /* g */ | |
2083 | "unsigned char", /* h */ | |
2084 | "int", /* i */ | |
2085 | "unsigned", /* j */ | |
2086 | NULL, /* k */ | |
2087 | "long", /* l */ | |
2088 | "unsigned long", /* m */ | |
2089 | "__int128", /* n */ | |
2090 | "unsigned __int128", /* o */ | |
2091 | NULL, /* p */ | |
2092 | NULL, /* q */ | |
2093 | NULL, /* r */ | |
2094 | "short", /* s */ | |
2095 | "unsigned short", /* t */ | |
2096 | NULL, /* u */ | |
2097 | "void", /* v */ | |
2098 | "wchar_t", /* w */ | |
2099 | "long long", /* x */ | |
2100 | "unsigned long long", /* y */ | |
2101 | "..." /* z */ | |
2102 | }; | |
2103 | ||
2104 | /* Demangles and emits a <builtin-type>. | |
2105 | ||
2106 | <builtin-type> ::= v # void | |
2107 | ::= w # wchar_t | |
2108 | ::= b # bool | |
2109 | ::= c # char | |
2110 | ::= a # signed char | |
2111 | ::= h # unsigned char | |
2112 | ::= s # short | |
2113 | ::= t # unsigned short | |
2114 | ::= i # int | |
2115 | ::= j # unsigned int | |
2116 | ::= l # long | |
2117 | ::= m # unsigned long | |
2118 | ::= x # long long, __int64 | |
2119 | ::= y # unsigned long long, __int64 | |
2120 | ::= n # __int128 | |
2121 | ::= o # unsigned __int128 | |
2122 | ::= f # float | |
2123 | ::= d # double | |
2124 | ::= e # long double, __float80 | |
2125 | ::= g # __float128 | |
2126 | ::= z # ellipsis | |
2127 | ::= u <source-name> # vendor extended type */ | |
2128 | ||
2129 | static status_t | |
2130 | demangle_builtin_type (dm) | |
2131 | demangling_t dm; | |
2132 | { | |
2133 | ||
2134 | char code = peek_char (dm); | |
2135 | ||
2136 | DEMANGLE_TRACE ("builtin-type", dm); | |
2137 | ||
2138 | if (code == 'u') | |
2139 | { | |
2140 | advance_char (dm); | |
2141 | RETURN_IF_ERROR (demangle_source_name (dm)); | |
2142 | return STATUS_OK; | |
2143 | } | |
2144 | else if (code >= 'a' && code <= 'z') | |
2145 | { | |
2146 | const char *type_name = builtin_type_names[code - 'a']; | |
2147 | if (type_name == NULL) | |
2148 | return "Unrecognized <builtin-type> code."; | |
2149 | ||
051664b0 | 2150 | RETURN_IF_ERROR (result_append (dm, type_name)); |
69afa80d AS |
2151 | advance_char (dm); |
2152 | return STATUS_OK; | |
2153 | } | |
2154 | else | |
2155 | return "Non-alphabetic <builtin-type> code."; | |
2156 | } | |
2157 | ||
2158 | /* Demangles all consecutive CV-qualifiers (const, volatile, and | |
2159 | restrict) at the current position. The qualifiers are appended to | |
2160 | QUALIFIERS. Returns STATUS_OK. */ | |
2161 | ||
2162 | static status_t | |
2163 | demangle_CV_qualifiers (dm, qualifiers) | |
2164 | demangling_t dm; | |
2165 | dyn_string_t qualifiers; | |
2166 | { | |
2167 | DEMANGLE_TRACE ("CV-qualifiers", dm); | |
2168 | ||
2169 | while (1) | |
2170 | { | |
2171 | switch (peek_char (dm)) | |
2172 | { | |
2173 | case 'r': | |
051664b0 AS |
2174 | if (!dyn_string_append_space (qualifiers)) |
2175 | return STATUS_ALLOCATION_FAILED; | |
2176 | if (!dyn_string_append_cstr (qualifiers, "restrict")) | |
2177 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
2178 | break; |
2179 | ||
2180 | case 'V': | |
051664b0 AS |
2181 | if (!dyn_string_append_space (qualifiers)) |
2182 | return STATUS_ALLOCATION_FAILED; | |
2183 | if (!dyn_string_append_cstr (qualifiers, "volatile")) | |
2184 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
2185 | break; |
2186 | ||
2187 | case 'K': | |
051664b0 AS |
2188 | if (!dyn_string_append_space (qualifiers)) |
2189 | return STATUS_ALLOCATION_FAILED; | |
2190 | if (!dyn_string_append_cstr (qualifiers, "const")) | |
2191 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
2192 | break; |
2193 | ||
2194 | default: | |
2195 | return STATUS_OK; | |
2196 | } | |
2197 | ||
2198 | advance_char (dm); | |
2199 | } | |
2200 | } | |
2201 | ||
2202 | /* Demangles and emits a <function-type> FUNCTION_NAME_POS is the | |
2203 | position in the result string of the start of the function | |
2204 | identifier, at which the function's return type will be inserted. | |
2205 | ||
2206 | <function-type> ::= F [Y] <bare-function-type> E */ | |
2207 | ||
2208 | static status_t | |
2209 | demangle_function_type (dm, function_name_pos) | |
2210 | demangling_t dm; | |
2211 | int function_name_pos; | |
2212 | { | |
2213 | DEMANGLE_TRACE ("function-type", dm); | |
2214 | RETURN_IF_ERROR (demangle_char (dm, 'F')); | |
2215 | if (peek_char (dm) == 'Y') | |
2216 | { | |
2217 | /* Indicate this function has C linkage if in verbose mode. */ | |
2218 | if (flag_verbose) | |
051664b0 | 2219 | RETURN_IF_ERROR (result_append (dm, " [extern \"C\"] ")); |
69afa80d AS |
2220 | advance_char (dm); |
2221 | } | |
2222 | RETURN_IF_ERROR (demangle_bare_function_type (dm, function_name_pos)); | |
2223 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
2224 | return STATUS_OK; | |
2225 | } | |
2226 | ||
2227 | /* Demangles and emits a <bare-function-type>. RETURN_TYPE_POS is the | |
2228 | position in the result string at which the function return type | |
2229 | should be inserted. If RETURN_TYPE_POS is BFT_NO_RETURN_TYPE, the | |
2230 | function's return type is assumed not to be encoded. | |
2231 | ||
2232 | <bare-function-type> ::= <signature type>+ */ | |
2233 | ||
2234 | static status_t | |
2235 | demangle_bare_function_type (dm, return_type_pos) | |
2236 | demangling_t dm; | |
2237 | int return_type_pos; | |
2238 | { | |
2239 | /* Sequence is the index of the current function parameter, counting | |
2240 | from zero. The value -1 denotes the return type. */ | |
2241 | int sequence = | |
2242 | (return_type_pos == BFT_NO_RETURN_TYPE ? 0 : -1); | |
2243 | ||
2244 | DEMANGLE_TRACE ("bare-function-type", dm); | |
2245 | ||
051664b0 | 2246 | RETURN_IF_ERROR (result_append_char (dm, '(')); |
69afa80d AS |
2247 | while (!end_of_name_p (dm) && peek_char (dm) != 'E') |
2248 | { | |
2249 | if (sequence == -1) | |
2250 | /* We're decoding the function's return type. */ | |
2251 | { | |
2252 | dyn_string_t return_type; | |
051664b0 | 2253 | status_t status = STATUS_OK; |
69afa80d AS |
2254 | |
2255 | /* Decode the return type off to the side. */ | |
051664b0 | 2256 | RETURN_IF_ERROR (result_push (dm)); |
69afa80d AS |
2257 | RETURN_IF_ERROR (demangle_type (dm)); |
2258 | return_type = (dyn_string_t) result_pop (dm); | |
2259 | ||
051664b0 AS |
2260 | /* Add a space to the end of the type. Insert the return |
2261 | type where we've been asked to. */ | |
2262 | if (!dyn_string_append_space (return_type) | |
2263 | || !dyn_string_insert (result_string (dm), return_type_pos, | |
2264 | return_type)) | |
2265 | status = STATUS_ALLOCATION_FAILED; | |
69afa80d | 2266 | |
69afa80d | 2267 | dyn_string_delete (return_type); |
051664b0 | 2268 | RETURN_IF_ERROR (status); |
69afa80d AS |
2269 | } |
2270 | else | |
2271 | { | |
2272 | /* Skip `void' parameter types. One should only occur as | |
2273 | the only type in a parameter list; in that case, we want | |
2274 | to print `foo ()' instead of `foo (void)'. */ | |
2275 | if (peek_char (dm) == 'v') | |
2276 | { | |
2277 | /* Consume the v. */ | |
2278 | advance_char (dm); | |
2279 | continue; | |
2280 | } | |
2281 | /* Separate parameter types by commas. */ | |
2282 | if (sequence > 0) | |
051664b0 | 2283 | RETURN_IF_ERROR (result_append (dm, ", ")); |
69afa80d AS |
2284 | /* Demangle the type. */ |
2285 | RETURN_IF_ERROR (demangle_type (dm)); | |
2286 | } | |
2287 | ||
2288 | ++sequence; | |
2289 | } | |
051664b0 | 2290 | RETURN_IF_ERROR (result_append_char (dm, ')')); |
69afa80d AS |
2291 | |
2292 | return STATUS_OK; | |
2293 | } | |
2294 | ||
2295 | /* Demangles and emits a <class-enum-type>. *TEMPLATE_P is set to | |
2296 | non-zero if the type is a template-id, zero otherwise. | |
2297 | ||
2298 | <class-enum-type> ::= <name> */ | |
2299 | ||
2300 | static status_t | |
2301 | demangle_class_enum_type (dm, template_p) | |
2302 | demangling_t dm; | |
2303 | int *template_p; | |
2304 | { | |
2305 | DEMANGLE_TRACE ("class-enum-type", dm); | |
2306 | ||
2307 | RETURN_IF_ERROR (demangle_name (dm, template_p)); | |
2308 | return STATUS_OK; | |
2309 | } | |
2310 | ||
2311 | /* Demangles and emits an <array-type>. | |
2312 | ||
2313 | <array-type> ::= A [<dimension number>] _ <element type> */ | |
2314 | ||
2315 | static status_t | |
2316 | demangle_array_type (dm) | |
2317 | demangling_t dm; | |
2318 | { | |
051664b0 | 2319 | status_t status; |
69afa80d AS |
2320 | dyn_string_t array_size = dyn_string_new (10); |
2321 | ||
051664b0 AS |
2322 | if (array_size == NULL) |
2323 | return STATUS_ALLOCATION_FAILED; | |
2324 | ||
2325 | status = demangle_char (dm, 'A'); | |
69afa80d AS |
2326 | |
2327 | /* Demangle the array size into array_size. */ | |
051664b0 AS |
2328 | if (STATUS_NO_ERROR (status)) |
2329 | status = demangle_number_literally (dm, array_size, 10, 0); | |
69afa80d AS |
2330 | |
2331 | /* Demangle the base type of the array. */ | |
051664b0 AS |
2332 | if (STATUS_NO_ERROR (status)) |
2333 | status = demangle_char (dm, '_'); | |
2334 | if (STATUS_NO_ERROR (status)) | |
2335 | status = demangle_type (dm); | |
69afa80d AS |
2336 | |
2337 | /* Emit the array dimension syntax. */ | |
051664b0 AS |
2338 | if (STATUS_NO_ERROR (status)) |
2339 | status = result_append_char (dm, '['); | |
2340 | if (STATUS_NO_ERROR (status)) | |
2341 | status = result_append_string (dm, array_size); | |
2342 | if (STATUS_NO_ERROR (status)) | |
2343 | status = result_append_char (dm, ']'); | |
69afa80d AS |
2344 | dyn_string_delete (array_size); |
2345 | ||
051664b0 AS |
2346 | RETURN_IF_ERROR (status); |
2347 | ||
69afa80d AS |
2348 | return STATUS_OK; |
2349 | } | |
2350 | ||
2351 | /* Demangles and emits a <template-param>. The zero-indexed position | |
2352 | in the parameter list is placed in *TEMPLATE_PARM_NUMBER. | |
2353 | ||
2354 | <template-param> ::= T_ # first template parameter | |
2355 | ::= T <parameter-2 number> _ */ | |
2356 | ||
2357 | static status_t | |
2358 | demangle_template_param (dm, template_parm_number) | |
2359 | demangling_t dm; | |
2360 | int *template_parm_number; | |
2361 | { | |
2362 | int parm_number; | |
2363 | template_arg_list_t current_arg_list = current_template_arg_list (dm); | |
2364 | string_list_t arg; | |
2365 | ||
2366 | DEMANGLE_TRACE ("template-param", dm); | |
2367 | ||
2368 | /* Make sure there is a template argmust list in which to look up | |
2369 | this parameter reference. */ | |
2370 | if (current_arg_list == NULL) | |
2371 | return "Template parameter outside of template."; | |
2372 | ||
2373 | RETURN_IF_ERROR (demangle_char (dm, 'T')); | |
2374 | if (peek_char (dm) == '_') | |
2375 | parm_number = 0; | |
2376 | else | |
2377 | { | |
2378 | RETURN_IF_ERROR (demangle_number (dm, &parm_number, 10, 0)); | |
2379 | ++parm_number; | |
2380 | } | |
2381 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
2382 | ||
2383 | arg = template_arg_list_get_arg (current_arg_list, parm_number); | |
2384 | if (arg == NULL) | |
2385 | /* parm_number exceeded the number of arguments in the current | |
2386 | template argument list. */ | |
2387 | return "Template parameter number out of bounds."; | |
051664b0 | 2388 | RETURN_IF_ERROR (result_append_string (dm, (dyn_string_t) arg)); |
69afa80d AS |
2389 | |
2390 | if (peek_char (dm) == 'I') | |
2391 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
2392 | ||
2393 | *template_parm_number = parm_number; | |
2394 | return STATUS_OK; | |
2395 | } | |
2396 | ||
2397 | /* Demangles and emits a <template-args>. | |
2398 | ||
2399 | <template-args> ::= I <template-arg>+ E */ | |
2400 | ||
2401 | static status_t | |
2402 | demangle_template_args (dm) | |
2403 | demangling_t dm; | |
2404 | { | |
2405 | int first = 1; | |
051664b0 | 2406 | dyn_string_t old_last_source_name; |
69afa80d AS |
2407 | template_arg_list_t arg_list = template_arg_list_new (); |
2408 | ||
051664b0 AS |
2409 | if (arg_list == NULL) |
2410 | return STATUS_ALLOCATION_FAILED; | |
2411 | ||
69afa80d | 2412 | /* Preserve the most recently demangled source name. */ |
051664b0 | 2413 | old_last_source_name = dm->last_source_name; |
69afa80d AS |
2414 | dm->last_source_name = dyn_string_new (0); |
2415 | ||
2416 | DEMANGLE_TRACE ("template-args", dm); | |
2417 | ||
051664b0 AS |
2418 | if (dm->last_source_name == NULL) |
2419 | return STATUS_ALLOCATION_FAILED; | |
2420 | ||
69afa80d | 2421 | RETURN_IF_ERROR (demangle_char (dm, 'I')); |
051664b0 | 2422 | RETURN_IF_ERROR (result_append_char (dm, '<')); |
69afa80d AS |
2423 | do |
2424 | { | |
2425 | string_list_t arg; | |
2426 | ||
2427 | if (first) | |
2428 | first = 0; | |
2429 | else | |
051664b0 | 2430 | RETURN_IF_ERROR (result_append (dm, ", ")); |
69afa80d AS |
2431 | |
2432 | /* Capture the template arg. */ | |
051664b0 | 2433 | RETURN_IF_ERROR (result_push (dm)); |
69afa80d AS |
2434 | RETURN_IF_ERROR (demangle_template_arg (dm)); |
2435 | arg = result_pop (dm); | |
2436 | ||
2437 | /* Emit it in the demangled name. */ | |
051664b0 | 2438 | RETURN_IF_ERROR (result_append_string (dm, (dyn_string_t) arg)); |
69afa80d AS |
2439 | |
2440 | /* Save it for use in expanding <template-param>s. */ | |
2441 | template_arg_list_add_arg (arg_list, arg); | |
2442 | } | |
2443 | while (peek_char (dm) != 'E'); | |
2444 | /* Append the '>'. */ | |
051664b0 | 2445 | RETURN_IF_ERROR (result_close_template_list (dm)); |
69afa80d AS |
2446 | |
2447 | /* Consume the 'E'. */ | |
2448 | advance_char (dm); | |
2449 | ||
2450 | /* Restore the most recent demangled source name. */ | |
2451 | dyn_string_delete (dm->last_source_name); | |
2452 | dm->last_source_name = old_last_source_name; | |
2453 | ||
2454 | /* Push the list onto the top of the stack of template argument | |
2455 | lists, so that arguments from it are used from now on when | |
2456 | expanding <template-param>s. */ | |
2457 | push_template_arg_list (dm, arg_list); | |
2458 | ||
2459 | return STATUS_OK; | |
2460 | } | |
2461 | ||
2462 | /* This function, which does not correspond to a production in the | |
2463 | mangling spec, handles the `literal' production for both | |
2464 | <template-arg> and <expr-primary>. It does not expect or consume | |
2465 | the initial `L' or final `E'. The demangling is given by: | |
2466 | ||
2467 | <literal> ::= <type> </value/ number> | |
2468 | ||
2469 | and the emitted output is `(type)number'. */ | |
2470 | ||
2471 | static status_t | |
2472 | demangle_literal (dm) | |
2473 | demangling_t dm; | |
2474 | { | |
69afa80d | 2475 | char peek = peek_char (dm); |
051664b0 AS |
2476 | dyn_string_t value_string; |
2477 | status_t status; | |
69afa80d AS |
2478 | |
2479 | DEMANGLE_TRACE ("literal", dm); | |
2480 | ||
2481 | if (!flag_verbose && peek >= 'a' && peek <= 'z') | |
2482 | { | |
2483 | /* If not in verbose mode and this is a builtin type, see if we | |
2484 | can produce simpler numerical output. In particular, for | |
2485 | integer types shorter than `long', just write the number | |
2486 | without type information; for bools, write `true' or `false'. | |
2487 | Other refinements could be made here too. */ | |
2488 | ||
2489 | /* This constant string is used to map from <builtin-type> codes | |
2490 | (26 letters of the alphabet) to codes that determine how the | |
2491 | value will be displayed. The codes are: | |
2492 | b: display as bool | |
2493 | i: display as int | |
2494 | l: display as long | |
2495 | A space means the value will be represented using cast | |
2496 | notation. */ | |
2497 | static const char *const code_map = "ibi iii ll ii i "; | |
2498 | ||
2499 | char code = code_map[peek - 'a']; | |
2500 | /* FIXME: Implement demangling of floats and doubles. */ | |
2501 | if (code == 'u') | |
2502 | return STATUS_UNIMPLEMENTED; | |
2503 | if (code == 'b') | |
2504 | { | |
2505 | /* It's a boolean. */ | |
2506 | char value; | |
2507 | ||
2508 | /* Consume the b. */ | |
2509 | advance_char (dm); | |
2510 | /* Look at the next character. It should be 0 or 1, | |
2511 | corresponding to false or true, respectively. */ | |
2512 | value = peek_char (dm); | |
2513 | if (value == '0') | |
051664b0 | 2514 | RETURN_IF_ERROR (result_append (dm, "false")); |
69afa80d | 2515 | else if (value == '1') |
051664b0 | 2516 | RETURN_IF_ERROR (result_append (dm, "true")); |
69afa80d AS |
2517 | else |
2518 | return "Unrecognized bool constant."; | |
2519 | /* Consume the 0 or 1. */ | |
2520 | advance_char (dm); | |
2521 | return STATUS_OK; | |
2522 | } | |
2523 | else if (code == 'i' || code == 'l') | |
2524 | { | |
2525 | /* It's an integer or long. */ | |
2526 | ||
2527 | /* Consume the type character. */ | |
2528 | advance_char (dm); | |
051664b0 | 2529 | |
69afa80d | 2530 | /* Demangle the number and write it out. */ |
051664b0 AS |
2531 | value_string = dyn_string_new (0); |
2532 | status = demangle_number_literally (dm, value_string, 10, 1); | |
2533 | if (STATUS_NO_ERROR (status)) | |
2534 | status = result_append_string (dm, value_string); | |
69afa80d | 2535 | /* For long integers, append an l. */ |
051664b0 AS |
2536 | if (code == 'l' && STATUS_NO_ERROR (status)) |
2537 | status = result_append_char (dm, code); | |
2538 | dyn_string_delete (value_string); | |
2539 | ||
2540 | RETURN_IF_ERROR (status); | |
69afa80d AS |
2541 | return STATUS_OK; |
2542 | } | |
2543 | /* ...else code == ' ', so fall through to represent this | |
2544 | literal's type explicitly using cast syntax. */ | |
2545 | } | |
2546 | ||
051664b0 | 2547 | RETURN_IF_ERROR (result_append_char (dm, '(')); |
69afa80d | 2548 | RETURN_IF_ERROR (demangle_type (dm)); |
051664b0 AS |
2549 | RETURN_IF_ERROR (result_append_char (dm, ')')); |
2550 | ||
2551 | value_string = dyn_string_new (0); | |
2552 | if (value_string == NULL) | |
2553 | return STATUS_ALLOCATION_FAILED; | |
69afa80d | 2554 | |
051664b0 AS |
2555 | status = demangle_number_literally (dm, value_string, 10, 1); |
2556 | if (STATUS_NO_ERROR (status)) | |
2557 | status = result_append_string (dm, value_string); | |
2558 | dyn_string_delete (value_string); | |
2559 | RETURN_IF_ERROR (status); | |
69afa80d AS |
2560 | |
2561 | return STATUS_OK; | |
2562 | } | |
2563 | ||
2564 | /* Demangles and emits a <template-arg>. | |
2565 | ||
2566 | <template-arg> ::= <type> # type | |
2567 | ::= L <type> <value number> E # literal | |
2568 | ::= LZ <encoding> E # external name | |
2569 | ::= X <expression> E # expression */ | |
2570 | ||
2571 | static status_t | |
2572 | demangle_template_arg (dm) | |
2573 | demangling_t dm; | |
2574 | { | |
2575 | DEMANGLE_TRACE ("template-arg", dm); | |
2576 | ||
2577 | switch (peek_char (dm)) | |
2578 | { | |
2579 | case 'L': | |
2580 | advance_char (dm); | |
2581 | ||
2582 | if (peek_char (dm) == 'Z') | |
2583 | { | |
2584 | /* External name. */ | |
2585 | advance_char (dm); | |
2586 | /* FIXME: Standard is contradictory here. */ | |
2587 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
2588 | } | |
2589 | else | |
2590 | RETURN_IF_ERROR (demangle_literal (dm)); | |
2591 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
2592 | break; | |
2593 | ||
2594 | case 'X': | |
2595 | /* Expression. */ | |
2596 | advance_char (dm); | |
2597 | RETURN_IF_ERROR (demangle_expression (dm)); | |
2598 | break; | |
2599 | ||
2600 | default: | |
2601 | RETURN_IF_ERROR (demangle_type (dm)); | |
2602 | break; | |
2603 | } | |
2604 | ||
2605 | return STATUS_OK; | |
2606 | } | |
2607 | ||
2608 | /* Demangles and emits an <expression>. | |
2609 | ||
2610 | <expression> ::= <unary operator-name> <expression> | |
2611 | ::= <binary operator-name> <expression> <expression> | |
2612 | ::= <expr-primary> | |
2613 | ::= <scope-expression> */ | |
2614 | ||
2615 | static status_t | |
2616 | demangle_expression (dm) | |
2617 | demangling_t dm; | |
2618 | { | |
2619 | char peek = peek_char (dm); | |
2620 | ||
2621 | DEMANGLE_TRACE ("expression", dm); | |
2622 | ||
2623 | if (peek == 'L' || peek == 'T') | |
2624 | RETURN_IF_ERROR (demangle_expr_primary (dm)); | |
2625 | else if (peek == 's' && peek_char_next (dm) == 'r') | |
2626 | RETURN_IF_ERROR (demangle_scope_expression (dm)); | |
2627 | else | |
2628 | /* An operator expression. */ | |
2629 | { | |
2630 | int num_args; | |
051664b0 | 2631 | status_t status = STATUS_OK; |
69afa80d AS |
2632 | dyn_string_t operator_name; |
2633 | ||
2634 | /* We have an operator name. Since we want to output binary | |
2635 | operations in infix notation, capture the operator name | |
2636 | first. */ | |
051664b0 | 2637 | RETURN_IF_ERROR (result_push (dm)); |
69afa80d AS |
2638 | RETURN_IF_ERROR (demangle_operator_name (dm, 1, &num_args)); |
2639 | operator_name = (dyn_string_t) result_pop (dm); | |
2640 | ||
2641 | /* If it's binary, do an operand first. */ | |
2642 | if (num_args > 1) | |
2643 | { | |
051664b0 AS |
2644 | status = result_append_char (dm, '('); |
2645 | if (STATUS_NO_ERROR (status)) | |
2646 | status = demangle_expression (dm); | |
2647 | if (STATUS_NO_ERROR (status)) | |
2648 | status = result_append_char (dm, ')'); | |
69afa80d AS |
2649 | } |
2650 | ||
051664b0 AS |
2651 | /* Emit the operator. */ |
2652 | if (STATUS_NO_ERROR (status)) | |
2653 | status = result_append_string (dm, operator_name); | |
69afa80d | 2654 | dyn_string_delete (operator_name); |
051664b0 AS |
2655 | RETURN_IF_ERROR (status); |
2656 | ||
2657 | /* Emit its second (if binary) or only (if unary) operand. */ | |
2658 | RETURN_IF_ERROR (result_append_char (dm, '(')); | |
69afa80d | 2659 | RETURN_IF_ERROR (demangle_expression (dm)); |
051664b0 | 2660 | RETURN_IF_ERROR (result_append_char (dm, ')')); |
69afa80d AS |
2661 | |
2662 | /* The ternary operator takes a third operand. */ | |
2663 | if (num_args == 3) | |
2664 | { | |
051664b0 | 2665 | RETURN_IF_ERROR (result_append (dm, ":(")); |
69afa80d | 2666 | RETURN_IF_ERROR (demangle_expression (dm)); |
051664b0 | 2667 | RETURN_IF_ERROR (result_append_char (dm, ')')); |
69afa80d AS |
2668 | } |
2669 | } | |
2670 | ||
2671 | return STATUS_OK; | |
2672 | } | |
2673 | ||
2674 | /* Demangles and emits a <scope-expression>. | |
2675 | ||
2676 | <scope-expression> ::= sr <qualifying type> <source-name> | |
2677 | ::= sr <qualifying type> <encoding> */ | |
2678 | ||
2679 | static status_t | |
2680 | demangle_scope_expression (dm) | |
2681 | demangling_t dm; | |
2682 | { | |
2683 | RETURN_IF_ERROR (demangle_char (dm, 's')); | |
2684 | RETURN_IF_ERROR (demangle_char (dm, 'r')); | |
2685 | RETURN_IF_ERROR (demangle_type (dm)); | |
051664b0 | 2686 | RETURN_IF_ERROR (result_append (dm, "::")); |
69afa80d AS |
2687 | RETURN_IF_ERROR (demangle_encoding (dm)); |
2688 | return STATUS_OK; | |
2689 | } | |
2690 | ||
2691 | /* Demangles and emits an <expr-primary>. | |
2692 | ||
2693 | <expr-primary> ::= <template-param> | |
2694 | ::= L <type> <value number> E # literal | |
2695 | ::= L <mangled-name> E # external name */ | |
2696 | ||
2697 | static status_t | |
2698 | demangle_expr_primary (dm) | |
2699 | demangling_t dm; | |
2700 | { | |
2701 | char peek = peek_char (dm); | |
2702 | int unused; | |
2703 | ||
2704 | DEMANGLE_TRACE ("expr-primary", dm); | |
2705 | ||
2706 | if (peek == 'T') | |
2707 | RETURN_IF_ERROR (demangle_template_param (dm, &unused)); | |
2708 | else if (peek == 'L') | |
2709 | { | |
2710 | /* Consume the `L'. */ | |
2711 | advance_char (dm); | |
2712 | peek = peek_char (dm); | |
2713 | ||
2714 | if (peek == '_') | |
2715 | RETURN_IF_ERROR (demangle_mangled_name (dm)); | |
2716 | else | |
2717 | RETURN_IF_ERROR (demangle_literal (dm)); | |
2718 | ||
2719 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
2720 | } | |
2721 | else | |
2722 | return STATUS_ERROR; | |
2723 | ||
2724 | return STATUS_OK; | |
2725 | } | |
2726 | ||
2727 | /* Demangles and emits a <substitution>. Sets *TEMPLATE_P to non-zero | |
2728 | if the substitution is the name of a template, zero otherwise. If | |
2729 | the substitution token is St, which corresponds to the `::std::' | |
2730 | namespace and can appear in a non-nested name, sets | |
2731 | *SPECIAL_STD_SUBSTITUTION to non-zero; zero otherwise. | |
2732 | ||
2733 | <substitution> ::= S <seq-id> _ | |
2734 | ::= S_ | |
2735 | ||
2736 | ::= St # ::std:: | |
2737 | ::= Sa # ::std::allocator | |
2738 | ::= Sb # ::std::basic_string | |
2739 | ::= Ss # ::std::basic_string<char, | |
2740 | ::std::char_traits<char>, | |
2741 | ::std::allocator<char> > | |
2742 | ::= Si # ::std::basic_istream<char, | |
2743 | std::char_traits<char> > | |
2744 | ::= So # ::std::basic_ostream<char, | |
2745 | std::char_traits<char> > | |
2746 | ::= Sd # ::std::basic_iostream<char, | |
2747 | std::char_traits<char> > | |
2748 | */ | |
2749 | ||
2750 | static status_t | |
2751 | demangle_substitution (dm, template_p, special_std_substitution) | |
2752 | demangling_t dm; | |
2753 | int *template_p; | |
2754 | int *special_std_substitution; | |
2755 | { | |
2756 | int seq_id; | |
2757 | int peek; | |
2758 | dyn_string_t text; | |
2759 | ||
2760 | DEMANGLE_TRACE ("substitution", dm); | |
2761 | ||
2762 | RETURN_IF_ERROR (demangle_char (dm, 'S')); | |
2763 | *special_std_substitution = 0; | |
2764 | ||
2765 | /* Scan the substitution sequence index. A missing number denotes | |
2766 | the first index. */ | |
2767 | peek = peek_char (dm); | |
2768 | if (peek == '_') | |
2769 | seq_id = -1; | |
2770 | /* If the following character is 0-9 or a capital letter, interpret | |
2771 | the sequence up to the next underscore as a base-36 substitution | |
2772 | index. */ | |
051664b0 | 2773 | else if (IS_DIGIT ((unsigned char) peek) |
69afa80d AS |
2774 | || (peek >= 'A' && peek <= 'Z')) |
2775 | RETURN_IF_ERROR (demangle_number (dm, &seq_id, 36, 0)); | |
2776 | else | |
2777 | { | |
051664b0 AS |
2778 | const char *new_last_source_name = NULL; |
2779 | ||
69afa80d AS |
2780 | switch (peek) |
2781 | { | |
2782 | case 't': | |
051664b0 | 2783 | RETURN_IF_ERROR (result_append (dm, "std")); |
69afa80d AS |
2784 | *special_std_substitution = 1; |
2785 | break; | |
2786 | ||
2787 | case 'a': | |
051664b0 AS |
2788 | RETURN_IF_ERROR (result_append (dm, "std::allocator")); |
2789 | new_last_source_name = "allocator"; | |
bece74bd | 2790 | *template_p = 1; |
69afa80d AS |
2791 | break; |
2792 | ||
2793 | case 'b': | |
051664b0 AS |
2794 | RETURN_IF_ERROR (result_append (dm, "std::basic_string")); |
2795 | new_last_source_name = "basic_string"; | |
bece74bd | 2796 | *template_p = 1; |
69afa80d AS |
2797 | break; |
2798 | ||
2799 | case 's': | |
2800 | if (!flag_verbose) | |
2801 | { | |
051664b0 AS |
2802 | RETURN_IF_ERROR (result_append (dm, "std::string")); |
2803 | new_last_source_name = "string"; | |
69afa80d AS |
2804 | } |
2805 | else | |
2806 | { | |
051664b0 AS |
2807 | RETURN_IF_ERROR (result_append (dm, "std::basic_string<char, std::char_traits<char>, std::allocator<char> >")); |
2808 | new_last_source_name = "basic_string"; | |
69afa80d | 2809 | } |
bece74bd | 2810 | *template_p = 0; |
69afa80d AS |
2811 | break; |
2812 | ||
2813 | case 'i': | |
2814 | if (!flag_verbose) | |
2815 | { | |
051664b0 AS |
2816 | RETURN_IF_ERROR (result_append (dm, "std::istream")); |
2817 | new_last_source_name = "istream"; | |
69afa80d AS |
2818 | } |
2819 | else | |
2820 | { | |
051664b0 AS |
2821 | RETURN_IF_ERROR (result_append (dm, "std::basic_istream<char, std::char_traints<char> >")); |
2822 | new_last_source_name = "basic_istream"; | |
69afa80d | 2823 | } |
bece74bd | 2824 | *template_p = 0; |
69afa80d AS |
2825 | break; |
2826 | ||
2827 | case 'o': | |
2828 | if (!flag_verbose) | |
2829 | { | |
051664b0 AS |
2830 | RETURN_IF_ERROR (result_append (dm, "std::ostream")); |
2831 | new_last_source_name = "ostream"; | |
69afa80d AS |
2832 | } |
2833 | else | |
2834 | { | |
051664b0 AS |
2835 | RETURN_IF_ERROR (result_append (dm, "std::basic_ostream<char, std::char_traits<char> >")); |
2836 | new_last_source_name = "basic_ostream"; | |
69afa80d | 2837 | } |
bece74bd | 2838 | *template_p = 0; |
69afa80d AS |
2839 | break; |
2840 | ||
2841 | case 'd': | |
2842 | if (!flag_verbose) | |
2843 | { | |
051664b0 AS |
2844 | RETURN_IF_ERROR (result_append (dm, "std::iostream")); |
2845 | new_last_source_name = "iostream"; | |
69afa80d AS |
2846 | } |
2847 | else | |
2848 | { | |
051664b0 AS |
2849 | RETURN_IF_ERROR (result_append (dm, "std::basic_iostream<char, std::char_traits<char> >")); |
2850 | new_last_source_name = "basic_iostream"; | |
69afa80d | 2851 | } |
bece74bd | 2852 | *template_p = 0; |
69afa80d AS |
2853 | break; |
2854 | ||
2855 | default: | |
2856 | return "Unrecognized <substitution>."; | |
2857 | } | |
2858 | ||
051664b0 | 2859 | /* Consume the character we just processed. */ |
69afa80d | 2860 | advance_char (dm); |
051664b0 AS |
2861 | |
2862 | if (new_last_source_name != NULL) | |
2863 | { | |
2864 | if (!dyn_string_copy_cstr (dm->last_source_name, | |
2865 | new_last_source_name)) | |
2866 | return STATUS_ALLOCATION_FAILED; | |
2867 | } | |
2868 | ||
69afa80d AS |
2869 | return STATUS_OK; |
2870 | } | |
2871 | ||
2872 | /* Look up the substitution text. Since `S_' is the most recent | |
2873 | substitution, `S0_' is the second-most-recent, etc., shift the | |
2874 | numbering by one. */ | |
2875 | text = substitution_get (dm, seq_id + 1, template_p); | |
bece74bd | 2876 | if (text == NULL) |
69afa80d AS |
2877 | return "Substitution number out of range."; |
2878 | ||
2879 | /* Emit the substitution text. */ | |
051664b0 | 2880 | RETURN_IF_ERROR (result_append_string (dm, text)); |
69afa80d AS |
2881 | |
2882 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
2883 | return STATUS_OK; | |
2884 | } | |
2885 | ||
2886 | /* Demangles and emits a <local-name>. | |
2887 | ||
2888 | <local-name> := Z <function encoding> E <entity name> [<discriminator>] | |
2889 | := Z <function encoding> E s [<discriminator>] */ | |
2890 | ||
2891 | static status_t | |
2892 | demangle_local_name (dm) | |
2893 | demangling_t dm; | |
2894 | { | |
2895 | DEMANGLE_TRACE ("local-name", dm); | |
2896 | ||
2897 | RETURN_IF_ERROR (demangle_char (dm, 'Z')); | |
2898 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
2899 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
051664b0 | 2900 | RETURN_IF_ERROR (result_append (dm, "'s ")); |
69afa80d AS |
2901 | |
2902 | if (peek_char (dm) == 's') | |
2903 | { | |
2904 | /* Local character string literal. */ | |
051664b0 | 2905 | RETURN_IF_ERROR (result_append (dm, "string literal")); |
69afa80d AS |
2906 | /* Consume the s. */ |
2907 | advance_char (dm); | |
2908 | RETURN_IF_ERROR (demangle_discriminator (dm, 0)); | |
2909 | } | |
2910 | else | |
2911 | { | |
2912 | int unused; | |
051664b0 | 2913 | RETURN_IF_ERROR (result_append (dm, "local ")); |
69afa80d AS |
2914 | /* Local name for some other entity. Demangle its name. */ |
2915 | RETURN_IF_ERROR (demangle_name (dm, &unused)); | |
2916 | RETURN_IF_ERROR (demangle_discriminator (dm, 1)); | |
2917 | } | |
2918 | ||
2919 | return STATUS_OK; | |
2920 | } | |
2921 | ||
2922 | /* Optimonally demangles and emits a <discriminator>. If there is no | |
2923 | <discriminator> at the current position in the mangled string, the | |
2924 | descriminator is assumed to be zero. Emit the discriminator number | |
2925 | in parentheses, unless SUPPRESS_FIRST is non-zero and the | |
2926 | discriminator is zero. | |
2927 | ||
2928 | <discriminator> ::= _ <number> */ | |
2929 | ||
2930 | static status_t | |
2931 | demangle_discriminator (dm, suppress_first) | |
2932 | demangling_t dm; | |
2933 | int suppress_first; | |
2934 | { | |
2935 | /* Output for <discriminator>s to the demangled name is completely | |
2936 | supressed if not in verbose mode. */ | |
2937 | ||
2938 | if (peek_char (dm) == '_') | |
2939 | { | |
2940 | /* Consume the underscore. */ | |
2941 | advance_char (dm); | |
2942 | if (flag_verbose) | |
051664b0 | 2943 | RETURN_IF_ERROR (result_append (dm, " [#")); |
69afa80d | 2944 | /* Check if there's a number following the underscore. */ |
051664b0 | 2945 | if (IS_DIGIT ((unsigned char) peek_char (dm))) |
69afa80d AS |
2946 | { |
2947 | int discriminator; | |
2948 | /* Demangle the number. */ | |
2949 | RETURN_IF_ERROR (demangle_number (dm, &discriminator, 10, 0)); | |
2950 | if (flag_verbose) | |
2951 | /* Write the discriminator. The mangled number is two | |
2952 | less than the discriminator ordinal, counting from | |
2953 | zero. */ | |
051664b0 AS |
2954 | RETURN_IF_ERROR (int_to_dyn_string (discriminator + 2, |
2955 | (dyn_string_t) dm->result)); | |
69afa80d AS |
2956 | } |
2957 | else | |
2958 | { | |
2959 | if (flag_verbose) | |
2960 | /* A missing digit correspond to one. */ | |
051664b0 | 2961 | RETURN_IF_ERROR (result_append_char (dm, '1')); |
69afa80d AS |
2962 | } |
2963 | if (flag_verbose) | |
051664b0 | 2964 | RETURN_IF_ERROR (result_append_char (dm, ']')); |
69afa80d AS |
2965 | } |
2966 | else if (!suppress_first) | |
2967 | { | |
2968 | if (flag_verbose) | |
051664b0 | 2969 | RETURN_IF_ERROR (result_append (dm, " [#0]")); |
69afa80d AS |
2970 | } |
2971 | ||
2972 | return STATUS_OK; | |
2973 | } | |
2974 | ||
2975 | /* Demangle NAME into RESULT, which must be an initialized | |
2976 | dyn_string_t. On success, returns STATUS_OK. On failure, returns | |
2977 | an error message, and the contents of RESULT are unchanged. */ | |
2978 | ||
7eb23b1f | 2979 | static status_t |
69afa80d | 2980 | cp_demangle (name, result) |
051664b0 | 2981 | const char *name; |
69afa80d AS |
2982 | dyn_string_t result; |
2983 | { | |
2984 | status_t status; | |
2985 | int length = strlen (name); | |
2986 | ||
2987 | if (length > 2 && name[0] == '_' && name[1] == 'Z') | |
2988 | { | |
2989 | demangling_t dm = demangling_new (name); | |
051664b0 AS |
2990 | if (dm == NULL) |
2991 | return STATUS_ALLOCATION_FAILED; | |
69afa80d | 2992 | |
051664b0 AS |
2993 | status = result_push (dm); |
2994 | if (status != STATUS_OK) | |
2995 | { | |
2996 | demangling_delete (dm); | |
2997 | return status; | |
2998 | } | |
69afa80d | 2999 | |
051664b0 AS |
3000 | status = demangle_mangled_name (dm); |
3001 | if (STATUS_NO_ERROR (status)) | |
69afa80d AS |
3002 | { |
3003 | dyn_string_t demangled = (dyn_string_t) result_pop (dm); | |
051664b0 AS |
3004 | if (!dyn_string_copy (result, demangled)) |
3005 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
3006 | dyn_string_delete (demangled); |
3007 | } | |
3008 | ||
3009 | demangling_delete (dm); | |
3010 | } | |
3011 | else | |
3012 | { | |
3013 | /* It's evidently not a mangled C++ name. It could be the name | |
3014 | of something with C linkage, though, so just copy NAME into | |
3015 | RESULT. */ | |
051664b0 AS |
3016 | if (!dyn_string_copy_cstr (result, name)) |
3017 | return STATUS_ALLOCATION_FAILED; | |
69afa80d AS |
3018 | status = STATUS_OK; |
3019 | } | |
3020 | ||
051664b0 AS |
3021 | return status; |
3022 | } | |
3023 | ||
3024 | /* Demangle TYPE_NAME into RESULT, which must be an initialized | |
3025 | dyn_string_t. On success, returns STATUS_OK. On failiure, returns | |
3026 | an error message, and the contents of RESULT are unchanged. */ | |
3027 | ||
838f8562 | 3028 | #ifdef IN_LIBGCC2 |
051664b0 AS |
3029 | static status_t |
3030 | cp_demangle_type (type_name, result) | |
3031 | const char* type_name; | |
3032 | dyn_string_t result; | |
3033 | { | |
3034 | status_t status; | |
3035 | demangling_t dm = demangling_new (type_name); | |
3036 | ||
3037 | if (dm == NULL) | |
3038 | return STATUS_ALLOCATION_FAILED; | |
3039 | ||
3040 | /* Demangle the type name. The demangled name is stored in dm. */ | |
3041 | status = result_push (dm); | |
3042 | if (status != STATUS_OK) | |
3043 | { | |
3044 | demangling_delete (dm); | |
3045 | return status; | |
3046 | } | |
3047 | ||
3048 | status = demangle_type (dm); | |
3049 | ||
3050 | if (STATUS_NO_ERROR (status)) | |
3051 | { | |
3052 | /* The demangling succeeded. Pop the result out of dm and copy | |
3053 | it into RESULT. */ | |
3054 | dyn_string_t demangled = (dyn_string_t) result_pop (dm); | |
3055 | if (!dyn_string_copy (result, demangled)) | |
3056 | return STATUS_ALLOCATION_FAILED; | |
3057 | dyn_string_delete (demangled); | |
3058 | } | |
3059 | ||
3060 | /* Clean up. */ | |
3061 | demangling_delete (dm); | |
3062 | ||
69afa80d AS |
3063 | return status; |
3064 | } | |
3065 | ||
051664b0 AS |
3066 | extern char *__cxa_demangle PARAMS ((const char *, char *, size_t *, int *)); |
3067 | ||
3068 | /* ABI-mandated entry point in the C++ runtime library for performing | |
3069 | demangling. MANGLED_NAME is a NUL-terminated character string | |
3070 | containing the name to be demangled. | |
3071 | ||
3072 | OUTPUT_BUFFER is a region of memory, allocated with malloc, of | |
3073 | *LENGTH bytes, into which the demangled name is stored. If | |
3074 | OUTPUT_BUFFER is not long enough, it is expanded using realloc. | |
3075 | OUTPUT_BUFFER may instead be NULL; in that case, the demangled name | |
3076 | is placed in a region of memory allocated with malloc. | |
3077 | ||
3078 | If LENGTH is non-NULL, the length of the buffer conaining the | |
3079 | demangled name, is placed in *LENGTH. | |
3080 | ||
3081 | The return value is a pointer to the start of the NUL-terminated | |
3082 | demangled name, or NULL if the demangling fails. The caller is | |
3083 | responsible for deallocating this memory using free. | |
3084 | ||
3085 | *STATUS is set to one of the following values: | |
3086 | 0: The demangling operation succeeded. | |
3087 | -1: A memory allocation failiure occurred. | |
3088 | -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules. | |
3089 | -3: One of the arguments is invalid. | |
3090 | ||
3091 | The demagling is performed using the C++ ABI mangling rules, with | |
3092 | GNU extensions. */ | |
3093 | ||
3094 | char * | |
3095 | __cxa_demangle (mangled_name, output_buffer, length, status) | |
3096 | const char *mangled_name; | |
3097 | char *output_buffer; | |
3098 | size_t *length; | |
3099 | int *status; | |
3100 | { | |
3101 | struct dyn_string demangled_name; | |
3102 | status_t result; | |
3103 | ||
3104 | if (status == NULL) | |
3105 | return NULL; | |
3106 | ||
3107 | if (mangled_name == NULL) { | |
3108 | *status = -3; | |
3109 | return NULL; | |
3110 | } | |
3111 | ||
3112 | /* Did the caller provide a buffer for the demangled name? */ | |
3113 | if (output_buffer == NULL) { | |
3114 | /* No; dyn_string will malloc a buffer for us. */ | |
3115 | if (!dyn_string_init (&demangled_name, 0)) | |
3116 | { | |
3117 | *status = -1; | |
3118 | return NULL; | |
3119 | } | |
3120 | } | |
3121 | else { | |
3122 | /* Yes. Check that the length was provided. */ | |
3123 | if (length == NULL) { | |
3124 | *status = -3; | |
3125 | return NULL; | |
3126 | } | |
3127 | /* Install the buffer into a dyn_string. */ | |
3128 | demangled_name.allocated = *length; | |
3129 | demangled_name.length = 0; | |
3130 | demangled_name.s = output_buffer; | |
3131 | } | |
3132 | ||
3133 | if (mangled_name[0] == '_' && mangled_name[1] == 'Z') | |
3134 | /* MANGLED_NAME apprears to be a function or variable name. | |
3135 | Demangle it accordingly. */ | |
3136 | result = cp_demangle (mangled_name, &demangled_name); | |
3137 | else | |
3138 | /* Try to demangled MANGLED_NAME as the name of a type. */ | |
3139 | result = cp_demangle_type (mangled_name, &demangled_name); | |
3140 | ||
3141 | if (result == STATUS_OK) | |
3142 | /* The demangling succeeded. */ | |
3143 | { | |
3144 | /* If LENGTH isn't NULL, store the allocated buffer length | |
3145 | there; the buffer may have been realloced by dyn_string | |
3146 | functions. */ | |
3147 | if (length != NULL) | |
3148 | *length = demangled_name.allocated; | |
3149 | /* The operation was a success. */ | |
3150 | *status = 0; | |
3151 | return dyn_string_buf (&demangled_name); | |
3152 | } | |
3153 | else if (result == STATUS_ALLOCATION_FAILED) | |
3154 | /* A call to malloc or realloc failed during the demangling | |
3155 | operation. */ | |
3156 | { | |
3157 | *status = -1; | |
3158 | return NULL; | |
3159 | } | |
3160 | else | |
3161 | /* The demangling failed for another reason, most probably because | |
3162 | MANGLED_NAME isn't a valid mangled name. */ | |
3163 | { | |
3164 | /* If the buffer containing the demangled name wasn't provided | |
3165 | by the caller, free it. */ | |
3166 | if (output_buffer == NULL) | |
3167 | free (dyn_string_buf (&demangled_name)); | |
3168 | *status = -2; | |
3169 | return NULL; | |
3170 | } | |
3171 | } | |
3172 | ||
3173 | #else /* !IN_LIBGCC2 */ | |
3174 | ||
69afa80d AS |
3175 | /* Variant entry point for integration with the existing cplus-dem |
3176 | demangler. Attempts to demangle MANGLED. If the demangling | |
3177 | succeeds, returns a buffer, allocated with malloc, containing the | |
3178 | demangled name. The caller must deallocate the buffer using free. | |
3179 | If the demangling failes, returns NULL. */ | |
3180 | ||
3181 | char * | |
3182 | cplus_demangle_new_abi (mangled) | |
3183 | const char* mangled; | |
3184 | { | |
3185 | /* Create a dyn_string to hold the demangled name. */ | |
3186 | dyn_string_t demangled = dyn_string_new (0); | |
3187 | /* Attempt the demangling. */ | |
3188 | status_t status = cp_demangle ((char *) mangled, demangled); | |
051664b0 | 3189 | if (STATUS_NO_ERROR (status)) |
69afa80d AS |
3190 | /* Demangling succeeded. */ |
3191 | { | |
3192 | /* Grab the demangled result from the dyn_string. It was | |
3193 | allocated with malloc, so we can return it directly. */ | |
3194 | char *return_value = dyn_string_release (demangled); | |
69afa80d AS |
3195 | /* Hand back the demangled name. */ |
3196 | return return_value; | |
3197 | } | |
051664b0 AS |
3198 | else if (status == STATUS_ALLOCATION_FAILED) |
3199 | { | |
3200 | fprintf (stderr, "Memory allocation failed.\n"); | |
3201 | abort (); | |
3202 | } | |
69afa80d AS |
3203 | else |
3204 | /* Demangling failed. */ | |
3205 | { | |
3206 | dyn_string_delete (demangled); | |
3207 | return NULL; | |
3208 | } | |
3209 | } | |
3210 | ||
051664b0 AS |
3211 | #endif /* IN_LIBGCC2 */ |
3212 | ||
69afa80d AS |
3213 | #ifdef STANDALONE_DEMANGLER |
3214 | ||
3215 | #include "getopt.h" | |
3216 | ||
3217 | static void print_usage | |
3218 | PARAMS ((FILE* fp, int exit_value)); | |
3219 | ||
3220 | /* Non-zero if CHAR is a character than can occur in a mangled name. */ | |
3faa108c | 3221 | #define is_mangled_char(CHAR) \ |
051664b0 | 3222 | (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) || (CHAR) == '_') |
69afa80d AS |
3223 | |
3224 | /* The name of this program, as invoked. */ | |
3225 | const char* program_name; | |
3226 | ||
3227 | /* Prints usage summary to FP and then exits with EXIT_VALUE. */ | |
3228 | ||
3229 | static void | |
3230 | print_usage (fp, exit_value) | |
3231 | FILE* fp; | |
3232 | int exit_value; | |
3233 | { | |
3234 | fprintf (fp, "Usage: %s [options] [names ...]\n", program_name); | |
3235 | fprintf (fp, "Options:\n", program_name); | |
3236 | fprintf (fp, " -h,--help Display this message.\n"); | |
3237 | fprintf (fp, " -s,--strict Demangle standard names only.\n"); | |
3238 | fprintf (fp, " -v,--verbose Produce verbose demanglings.\n"); | |
3239 | fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n"); | |
3240 | ||
3241 | exit (exit_value); | |
3242 | } | |
3243 | ||
3244 | /* Option specification for getopt_long. */ | |
3245 | static struct option long_options[] = | |
3246 | { | |
3247 | { "help", no_argument, NULL, 'h' }, | |
3248 | { "strict", no_argument, NULL, 's' }, | |
3249 | { "verbose", no_argument, NULL, 'v' }, | |
3250 | { NULL, no_argument, NULL, 0 }, | |
3251 | }; | |
3252 | ||
3253 | /* Main entry for a demangling filter executable. It will demangle | |
3254 | its command line arguments, if any. If none are provided, it will | |
3255 | filter stdin to stdout, replacing any recognized mangled C++ names | |
3256 | with their demangled equivalents. */ | |
3257 | ||
3258 | int | |
3259 | main (argc, argv) | |
3260 | int argc; | |
3261 | char *argv[]; | |
3262 | { | |
3263 | status_t status; | |
3264 | int i; | |
3265 | int opt_char; | |
3266 | ||
3267 | /* Use the program name of this program, as invoked. */ | |
3268 | program_name = argv[0]; | |
3269 | ||
3270 | /* Parse options. */ | |
3271 | do | |
3272 | { | |
3273 | opt_char = getopt_long (argc, argv, "hsv", long_options, NULL); | |
3274 | switch (opt_char) | |
3275 | { | |
3276 | case '?': /* Unrecognized option. */ | |
3277 | print_usage (stderr, 1); | |
3278 | break; | |
3279 | ||
3280 | case 'h': | |
3281 | print_usage (stdout, 0); | |
3282 | break; | |
3283 | ||
3284 | case 's': | |
3285 | flag_strict = 1; | |
3286 | break; | |
3287 | ||
3288 | case 'v': | |
3289 | flag_verbose = 1; | |
3290 | break; | |
3291 | } | |
3292 | } | |
3293 | while (opt_char != -1); | |
3294 | ||
3295 | if (optind == argc) | |
3296 | /* No command line arguments were provided. Filter stdin. */ | |
3297 | { | |
3298 | dyn_string_t mangled = dyn_string_new (3); | |
3299 | dyn_string_t demangled = dyn_string_new (0); | |
3300 | status_t status; | |
3301 | ||
3302 | /* Read all of input. */ | |
3303 | while (!feof (stdin)) | |
3304 | { | |
3305 | char c = getchar (); | |
3306 | ||
3307 | /* The first character of a mangled name is an underscore. */ | |
3308 | if (feof (stdin)) | |
3309 | break; | |
3310 | if (c != '_') | |
3311 | { | |
3312 | /* It's not a mangled name. Print the character and go | |
3313 | on. */ | |
3314 | putchar (c); | |
3315 | continue; | |
3316 | } | |
3317 | c = getchar (); | |
3318 | ||
3319 | /* The second character of a mangled name is a capital `Z'. */ | |
3320 | if (feof (stdin)) | |
3321 | break; | |
3322 | if (c != 'Z') | |
3323 | { | |
3324 | /* It's not a mangled name. Print the previous | |
3325 | underscore, the `Z', and go on. */ | |
3326 | putchar ('_'); | |
3327 | putchar (c); | |
3328 | continue; | |
3329 | } | |
3330 | ||
3331 | /* Start keeping track of the candidate mangled name. */ | |
3332 | dyn_string_append_char (mangled, '_'); | |
3333 | dyn_string_append_char (mangled, 'Z'); | |
3334 | ||
3335 | /* Pile characters into mangled until we hit one that can't | |
3336 | occur in a mangled name. */ | |
3337 | c = getchar (); | |
3338 | while (!feof (stdin) && is_mangled_char (c)) | |
3339 | { | |
3340 | dyn_string_append_char (mangled, c); | |
3341 | if (feof (stdin)) | |
3342 | break; | |
3343 | c = getchar (); | |
3344 | } | |
3345 | ||
3346 | /* Attempt to demangle the name. */ | |
3347 | status = cp_demangle (dyn_string_buf (mangled), demangled); | |
3348 | ||
3349 | /* If the demangling succeeded, great! Print out the | |
3350 | demangled version. */ | |
051664b0 | 3351 | if (STATUS_NO_ERROR (status)) |
69afa80d | 3352 | fputs (dyn_string_buf (demangled), stdout); |
051664b0 AS |
3353 | /* Abort on allocation failures. */ |
3354 | else if (status == STATUS_ALLOCATION_FAILED) | |
3355 | { | |
3356 | fprintf (stderr, "Memory allocation failed.\n"); | |
3357 | abort (); | |
3358 | } | |
69afa80d AS |
3359 | /* Otherwise, it might not have been a mangled name. Just |
3360 | print out the original text. */ | |
3361 | else | |
3362 | fputs (dyn_string_buf (mangled), stdout); | |
3363 | ||
3364 | /* If we haven't hit EOF yet, we've read one character that | |
3365 | can't occur in a mangled name, so print it out. */ | |
3366 | if (!feof (stdin)) | |
3367 | putchar (c); | |
3368 | ||
3369 | /* Clear the candidate mangled name, to start afresh next | |
3370 | time we hit a `_Z'. */ | |
3371 | dyn_string_clear (mangled); | |
3372 | } | |
3373 | ||
3374 | dyn_string_delete (mangled); | |
3375 | dyn_string_delete (demangled); | |
3376 | } | |
3377 | else | |
3378 | /* Demangle command line arguments. */ | |
3379 | { | |
3380 | dyn_string_t result = dyn_string_new (0); | |
3381 | ||
3382 | /* Loop over command line arguments. */ | |
3383 | for (i = optind; i < argc; ++i) | |
3384 | { | |
3385 | /* Attempt to demangle. */ | |
3386 | status = cp_demangle (argv[i], result); | |
3387 | ||
3388 | /* If it worked, print the demangled name. */ | |
051664b0 | 3389 | if (STATUS_NO_ERROR (status)) |
69afa80d | 3390 | printf ("%s\n", dyn_string_buf (result)); |
051664b0 | 3391 | /* Abort on allocaiton failures. */ |
bece74bd | 3392 | else if (status == STATUS_ALLOCATION_FAILED) |
051664b0 AS |
3393 | { |
3394 | fprintf (stderr, "Memory allocaiton failed.\n"); | |
bece74bd | 3395 | abort (); |
051664b0 | 3396 | } |
69afa80d AS |
3397 | /* If not, print the error message to stderr instead. */ |
3398 | else | |
3399 | fprintf (stderr, "%s\n", status); | |
3400 | } | |
3401 | dyn_string_delete (result); | |
3402 | } | |
3403 | ||
3404 | return 0; | |
3405 | } | |
3406 | ||
3407 | #endif /* STANDALONE_DEMANGLER */ |