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e49a569c | 1 | /* Demangler for IA64 / g++ V3 ABI. |
bc9bf259 | 2 | Copyright (C) 2000, 2001 Free Software Foundation, Inc. |
eb383413 L |
3 | Written by Alex Samuel <samuel@codesourcery.com>. |
4 | ||
74bcd529 DD |
5 | This file is part of GNU CC. |
6 | ||
eb383413 L |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | /* This file implements demangling of C++ names mangled according to | |
e49a569c | 23 | the IA64 / g++ V3 ABI. Use the cp_demangle function to |
eb383413 L |
24 | demangle a mangled name, or compile with the preprocessor macro |
25 | STANDALONE_DEMANGLER defined to create a demangling filter | |
74bcd529 DD |
26 | executable (functionally similar to c++filt, but includes this |
27 | demangler only). */ | |
eb383413 L |
28 | |
29 | #ifdef HAVE_CONFIG_H | |
30 | #include "config.h" | |
31 | #endif | |
32 | ||
b1233257 JL |
33 | #include <sys/types.h> |
34 | ||
eb383413 L |
35 | #ifdef HAVE_STDLIB_H |
36 | #include <stdlib.h> | |
37 | #endif | |
38 | ||
39 | #include <stdio.h> | |
40 | ||
41 | #ifdef HAVE_STRING_H | |
42 | #include <string.h> | |
43 | #endif | |
44 | ||
45 | #include "ansidecl.h" | |
46 | #include "libiberty.h" | |
47 | #include "dyn-string.h" | |
48 | #include "demangle.h" | |
49 | ||
50 | /* If CP_DEMANGLE_DEBUG is defined, a trace of the grammar evaluation, | |
51 | and other debugging output, will be generated. */ | |
52 | #ifdef CP_DEMANGLE_DEBUG | |
03d5f569 JM |
53 | #define DEMANGLE_TRACE(PRODUCTION, DM) \ |
54 | fprintf (stderr, " -> %-24s at position %3d\n", \ | |
eb383413 L |
55 | (PRODUCTION), current_position (DM)); |
56 | #else | |
57 | #define DEMANGLE_TRACE(PRODUCTION, DM) | |
58 | #endif | |
59 | ||
03d5f569 JM |
60 | /* Don't include <ctype.h>, to prevent additional unresolved symbols |
61 | from being dragged into the C++ runtime library. */ | |
62 | #define IS_DIGIT(CHAR) ((CHAR) >= '0' && (CHAR) <= '9') | |
63 | #define IS_ALPHA(CHAR) \ | |
64 | (((CHAR) >= 'a' && (CHAR) <= 'z') \ | |
65 | || ((CHAR) >= 'A' && (CHAR) <= 'Z')) | |
66 | ||
74bcd529 DD |
67 | /* The prefix prepended by GCC to an identifier represnting the |
68 | anonymous namespace. */ | |
69 | #define ANONYMOUS_NAMESPACE_PREFIX "_GLOBAL_" | |
70 | ||
bc9bf259 DD |
71 | /* Character(s) to use for namespace separation in demangled output */ |
72 | #define NAMESPACE_SEPARATOR (dm->style == DMGL_JAVA ? "." : "::") | |
73 | ||
eb383413 L |
74 | /* If flag_verbose is zero, some simplifications will be made to the |
75 | output to make it easier to read and supress details that are | |
76 | generally not of interest to the average C++ programmer. | |
77 | Otherwise, the demangled representation will attempt to convey as | |
78 | much information as the mangled form. */ | |
79 | static int flag_verbose; | |
80 | ||
81 | /* If flag_strict is non-zero, demangle strictly according to the | |
82 | specification -- don't demangle special g++ manglings. */ | |
83 | static int flag_strict; | |
84 | ||
59666b35 DD |
85 | /* String_list_t is an extended form of dyn_string_t which provides a |
86 | link field and a caret position for additions to the string. A | |
87 | string_list_t may safely be cast to and used as a dyn_string_t. */ | |
eb383413 L |
88 | |
89 | struct string_list_def | |
90 | { | |
59666b35 | 91 | /* The dyn_string; must be first. */ |
eb383413 | 92 | struct dyn_string string; |
59666b35 DD |
93 | |
94 | /* The position at which additional text is added to this string | |
95 | (using the result_add* macros). This value is an offset from the | |
96 | end of the string, not the beginning (and should be | |
97 | non-positive). */ | |
98 | int caret_position; | |
99 | ||
100 | /* The next string in the list. */ | |
eb383413 L |
101 | struct string_list_def *next; |
102 | }; | |
103 | ||
104 | typedef struct string_list_def *string_list_t; | |
105 | ||
106 | /* Data structure representing a potential substitution. */ | |
107 | ||
108 | struct substitution_def | |
109 | { | |
110 | /* The demangled text of the substitution. */ | |
111 | dyn_string_t text; | |
112 | ||
eb383413 L |
113 | /* Whether this substitution represents a template item. */ |
114 | int template_p : 1; | |
115 | }; | |
116 | ||
eb383413 L |
117 | /* Data structure representing a template argument list. */ |
118 | ||
119 | struct template_arg_list_def | |
120 | { | |
121 | /* The next (lower) template argument list in the stack of currently | |
122 | active template arguments. */ | |
123 | struct template_arg_list_def *next; | |
124 | ||
125 | /* The first element in the list of template arguments in | |
126 | left-to-right order. */ | |
127 | string_list_t first_argument; | |
128 | ||
129 | /* The last element in the arguments lists. */ | |
130 | string_list_t last_argument; | |
131 | }; | |
132 | ||
133 | typedef struct template_arg_list_def *template_arg_list_t; | |
134 | ||
135 | /* Data structure to maintain the state of the current demangling. */ | |
136 | ||
137 | struct demangling_def | |
138 | { | |
139 | /* The full mangled name being mangled. */ | |
03d5f569 | 140 | const char *name; |
eb383413 L |
141 | |
142 | /* Pointer into name at the current position. */ | |
03d5f569 | 143 | const char *next; |
eb383413 L |
144 | |
145 | /* Stack for strings containing demangled result generated so far. | |
146 | Text is emitted to the topmost (first) string. */ | |
147 | string_list_t result; | |
148 | ||
149 | /* The number of presently available substitutions. */ | |
150 | int num_substitutions; | |
151 | ||
152 | /* The allocated size of the substitutions array. */ | |
153 | int substitutions_allocated; | |
154 | ||
155 | /* An array of available substitutions. The number of elements in | |
156 | the array is given by num_substitions, and the allocated array | |
157 | size in substitutions_size. | |
158 | ||
159 | The most recent substition is at the end, so | |
160 | ||
161 | - `S_' corresponds to substititutions[num_substitutions - 1] | |
162 | - `S0_' corresponds to substititutions[num_substitutions - 2] | |
163 | ||
164 | etc. */ | |
165 | struct substitution_def *substitutions; | |
166 | ||
167 | /* The stack of template argument lists. */ | |
168 | template_arg_list_t template_arg_lists; | |
169 | ||
170 | /* The most recently demangled source-name. */ | |
171 | dyn_string_t last_source_name; | |
bc9bf259 DD |
172 | |
173 | /* Language style to use for demangled output. */ | |
174 | int style; | |
eb383413 L |
175 | }; |
176 | ||
177 | typedef struct demangling_def *demangling_t; | |
178 | ||
179 | /* This type is the standard return code from most functions. Values | |
180 | other than STATUS_OK contain descriptive messages. */ | |
181 | typedef const char *status_t; | |
182 | ||
183 | /* Special values that can be used as a status_t. */ | |
03d5f569 JM |
184 | #define STATUS_OK NULL |
185 | #define STATUS_ERROR "Error." | |
186 | #define STATUS_UNIMPLEMENTED "Unimplemented." | |
187 | #define STATUS_INTERNAL_ERROR "Internal error." | |
188 | ||
189 | /* This status code indicates a failure in malloc or realloc. */ | |
74bcd529 | 190 | static const char *const status_allocation_failed = "Allocation failed."; |
03d5f569 JM |
191 | #define STATUS_ALLOCATION_FAILED status_allocation_failed |
192 | ||
193 | /* Non-zero if STATUS indicates that no error has occurred. */ | |
194 | #define STATUS_NO_ERROR(STATUS) ((STATUS) == STATUS_OK) | |
eb383413 | 195 | |
03d5f569 JM |
196 | /* Evaluate EXPR, which must produce a status_t. If the status code |
197 | indicates an error, return from the current function with that | |
198 | status code. */ | |
199 | #define RETURN_IF_ERROR(EXPR) \ | |
200 | do \ | |
201 | { \ | |
202 | status_t s = EXPR; \ | |
203 | if (!STATUS_NO_ERROR (s)) \ | |
204 | return s; \ | |
205 | } \ | |
206 | while (0) | |
207 | ||
208 | static status_t int_to_dyn_string | |
eb383413 L |
209 | PARAMS ((int, dyn_string_t)); |
210 | static string_list_t string_list_new | |
211 | PARAMS ((int)); | |
212 | static void string_list_delete | |
213 | PARAMS ((string_list_t)); | |
74bcd529 DD |
214 | static status_t result_add_separated_char |
215 | PARAMS ((demangling_t, int)); | |
03d5f569 | 216 | static status_t result_push |
eb383413 L |
217 | PARAMS ((demangling_t)); |
218 | static string_list_t result_pop | |
219 | PARAMS ((demangling_t)); | |
220 | static int substitution_start | |
221 | PARAMS ((demangling_t)); | |
03d5f569 | 222 | static status_t substitution_add |
74bcd529 | 223 | PARAMS ((demangling_t, int, int)); |
eb383413 L |
224 | static dyn_string_t substitution_get |
225 | PARAMS ((demangling_t, int, int *)); | |
226 | #ifdef CP_DEMANGLE_DEBUG | |
227 | static void substitutions_print | |
228 | PARAMS ((demangling_t, FILE *)); | |
229 | #endif | |
230 | static template_arg_list_t template_arg_list_new | |
231 | PARAMS ((void)); | |
232 | static void template_arg_list_delete | |
233 | PARAMS ((template_arg_list_t)); | |
234 | static void template_arg_list_add_arg | |
235 | PARAMS ((template_arg_list_t, string_list_t)); | |
236 | static string_list_t template_arg_list_get_arg | |
237 | PARAMS ((template_arg_list_t, int)); | |
238 | static void push_template_arg_list | |
239 | PARAMS ((demangling_t, template_arg_list_t)); | |
240 | static void pop_to_template_arg_list | |
241 | PARAMS ((demangling_t, template_arg_list_t)); | |
242 | #ifdef CP_DEMANGLE_DEBUG | |
243 | static void template_arg_list_print | |
244 | PARAMS ((template_arg_list_t, FILE *)); | |
245 | #endif | |
246 | static template_arg_list_t current_template_arg_list | |
247 | PARAMS ((demangling_t)); | |
248 | static demangling_t demangling_new | |
bc9bf259 | 249 | PARAMS ((const char *, int)); |
eb383413 L |
250 | static void demangling_delete |
251 | PARAMS ((demangling_t)); | |
252 | ||
253 | /* The last character of DS. Warning: DS is evaluated twice. */ | |
254 | #define dyn_string_last_char(DS) \ | |
255 | (dyn_string_buf (DS)[dyn_string_length (DS) - 1]) | |
256 | ||
257 | /* Append a space character (` ') to DS if it does not already end | |
03d5f569 | 258 | with one. Evaluates to 1 on success, or 0 on allocation failure. */ |
eb383413 | 259 | #define dyn_string_append_space(DS) \ |
03d5f569 JM |
260 | ((dyn_string_length (DS) > 0 \ |
261 | && dyn_string_last_char (DS) != ' ') \ | |
262 | ? dyn_string_append_char ((DS), ' ') \ | |
263 | : 1) | |
eb383413 L |
264 | |
265 | /* Returns the index of the current position in the mangled name. */ | |
266 | #define current_position(DM) ((DM)->next - (DM)->name) | |
267 | ||
268 | /* Returns the character at the current position of the mangled name. */ | |
269 | #define peek_char(DM) (*((DM)->next)) | |
270 | ||
271 | /* Returns the character one past the current position of the mangled | |
272 | name. */ | |
273 | #define peek_char_next(DM) \ | |
274 | (peek_char (DM) == '\0' ? '\0' : (*((DM)->next + 1))) | |
275 | ||
276 | /* Returns the character at the current position, and advances the | |
277 | current position to the next character. */ | |
278 | #define next_char(DM) (*((DM)->next)++) | |
279 | ||
280 | /* Returns non-zero if the current position is the end of the mangled | |
281 | name, i.e. one past the last character. */ | |
282 | #define end_of_name_p(DM) (peek_char (DM) == '\0') | |
283 | ||
284 | /* Advances the current position by one character. */ | |
285 | #define advance_char(DM) (++(DM)->next) | |
286 | ||
287 | /* Returns the string containing the current demangled result. */ | |
288 | #define result_string(DM) (&(DM)->result->string) | |
289 | ||
59666b35 DD |
290 | /* Returns the position at which new text is inserted into the |
291 | demangled result. */ | |
292 | #define result_caret_pos(DM) \ | |
293 | (result_length (DM) + \ | |
294 | ((string_list_t) result_string (DM))->caret_position) | |
295 | ||
296 | /* Adds a dyn_string_t to the demangled result. */ | |
297 | #define result_add_string(DM, STRING) \ | |
298 | (dyn_string_insert (&(DM)->result->string, \ | |
299 | result_caret_pos (DM), (STRING)) \ | |
03d5f569 | 300 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) |
eb383413 | 301 | |
59666b35 DD |
302 | /* Adds NUL-terminated string CSTR to the demangled result. */ |
303 | #define result_add(DM, CSTR) \ | |
304 | (dyn_string_insert_cstr (&(DM)->result->string, \ | |
305 | result_caret_pos (DM), (CSTR)) \ | |
03d5f569 | 306 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) |
eb383413 | 307 | |
59666b35 DD |
308 | /* Adds character CHAR to the demangled result. */ |
309 | #define result_add_char(DM, CHAR) \ | |
310 | (dyn_string_insert_char (&(DM)->result->string, \ | |
311 | result_caret_pos (DM), (CHAR)) \ | |
03d5f569 | 312 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) |
eb383413 | 313 | |
74bcd529 DD |
314 | /* Inserts a dyn_string_t to the demangled result at position POS. */ |
315 | #define result_insert_string(DM, POS, STRING) \ | |
316 | (dyn_string_insert (&(DM)->result->string, (POS), (STRING)) \ | |
317 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
318 | ||
319 | /* Inserts NUL-terminated string CSTR to the demangled result at | |
320 | position POS. */ | |
321 | #define result_insert(DM, POS, CSTR) \ | |
322 | (dyn_string_insert_cstr (&(DM)->result->string, (POS), (CSTR)) \ | |
323 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
324 | ||
325 | /* Inserts character CHAR to the demangled result at position POS. */ | |
326 | #define result_insert_char(DM, POS, CHAR) \ | |
327 | (dyn_string_insert_char (&(DM)->result->string, (POS), (CHAR)) \ | |
328 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
329 | ||
eb383413 L |
330 | /* The length of the current demangled result. */ |
331 | #define result_length(DM) \ | |
332 | dyn_string_length (&(DM)->result->string) | |
333 | ||
74bcd529 DD |
334 | /* Appends a (less-than, greater-than) character to the result in DM |
335 | to (open, close) a template argument or parameter list. Appends a | |
336 | space first if necessary to prevent spurious elision of angle | |
337 | brackets with the previous character. */ | |
338 | #define result_open_template_list(DM) result_add_separated_char(DM, '<') | |
339 | #define result_close_template_list(DM) result_add_separated_char(DM, '>') | |
340 | ||
03d5f569 JM |
341 | /* Appends a base 10 representation of VALUE to DS. STATUS_OK on |
342 | success. On failure, deletes DS and returns an error code. */ | |
eb383413 | 343 | |
03d5f569 | 344 | static status_t |
eb383413 L |
345 | int_to_dyn_string (value, ds) |
346 | int value; | |
347 | dyn_string_t ds; | |
348 | { | |
349 | int i; | |
350 | int mask = 1; | |
351 | ||
352 | /* Handle zero up front. */ | |
353 | if (value == 0) | |
354 | { | |
03d5f569 JM |
355 | if (!dyn_string_append_char (ds, '0')) |
356 | return STATUS_ALLOCATION_FAILED; | |
357 | return STATUS_OK; | |
eb383413 L |
358 | } |
359 | ||
360 | /* For negative numbers, emit a minus sign. */ | |
361 | if (value < 0) | |
362 | { | |
03d5f569 JM |
363 | if (!dyn_string_append_char (ds, '-')) |
364 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
365 | value = -value; |
366 | } | |
367 | ||
368 | /* Find the power of 10 of the first digit. */ | |
369 | i = value; | |
370 | while (i > 9) | |
371 | { | |
372 | mask *= 10; | |
373 | i /= 10; | |
374 | } | |
375 | ||
376 | /* Write the digits. */ | |
377 | while (mask > 0) | |
378 | { | |
379 | int digit = value / mask; | |
03d5f569 JM |
380 | |
381 | if (!dyn_string_append_char (ds, '0' + digit)) | |
382 | return STATUS_ALLOCATION_FAILED; | |
383 | ||
eb383413 L |
384 | value -= digit * mask; |
385 | mask /= 10; | |
386 | } | |
03d5f569 JM |
387 | |
388 | return STATUS_OK; | |
eb383413 L |
389 | } |
390 | ||
391 | /* Creates a new string list node. The contents of the string are | |
392 | empty, but the initial buffer allocation is LENGTH. The string | |
03d5f569 JM |
393 | list node should be deleted with string_list_delete. Returns NULL |
394 | if allocation fails. */ | |
eb383413 L |
395 | |
396 | static string_list_t | |
397 | string_list_new (length) | |
398 | int length; | |
399 | { | |
03d5f569 | 400 | string_list_t s = (string_list_t) malloc (sizeof (struct string_list_def)); |
59666b35 | 401 | s->caret_position = 0; |
03d5f569 JM |
402 | if (s == NULL) |
403 | return NULL; | |
404 | if (!dyn_string_init ((dyn_string_t) s, length)) | |
405 | return NULL; | |
eb383413 L |
406 | return s; |
407 | } | |
408 | ||
409 | /* Deletes the entire string list starting at NODE. */ | |
410 | ||
411 | static void | |
412 | string_list_delete (node) | |
413 | string_list_t node; | |
414 | { | |
415 | while (node != NULL) | |
416 | { | |
417 | string_list_t next = node->next; | |
418 | free (node); | |
419 | node = next; | |
420 | } | |
421 | } | |
422 | ||
74bcd529 DD |
423 | /* Appends CHARACTER to the demangled result. If the current trailing |
424 | character of the result is CHARACTER, a space is inserted first. */ | |
eb383413 | 425 | |
03d5f569 | 426 | static status_t |
74bcd529 | 427 | result_add_separated_char (dm, character) |
eb383413 | 428 | demangling_t dm; |
74bcd529 | 429 | int character; |
eb383413 | 430 | { |
59666b35 DD |
431 | char *result = dyn_string_buf (result_string (dm)); |
432 | int caret_pos = result_caret_pos (dm); | |
03d5f569 | 433 | |
59666b35 DD |
434 | /* Add a space if the last character is already the character we |
435 | want to add. */ | |
436 | if (caret_pos > 0 && result[caret_pos - 1] == character) | |
437 | RETURN_IF_ERROR (result_add_char (dm, ' ')); | |
438 | /* Add the character. */ | |
439 | RETURN_IF_ERROR (result_add_char (dm, character)); | |
03d5f569 JM |
440 | |
441 | return STATUS_OK; | |
eb383413 L |
442 | } |
443 | ||
444 | /* Allocates and pushes a new string onto the demangled results stack | |
03d5f569 JM |
445 | for DM. Subsequent demangling with DM will emit to the new string. |
446 | Returns STATUS_OK on success, STATUS_ALLOCATION_FAILED on | |
447 | allocation failure. */ | |
eb383413 | 448 | |
03d5f569 | 449 | static status_t |
eb383413 L |
450 | result_push (dm) |
451 | demangling_t dm; | |
452 | { | |
453 | string_list_t new_string = string_list_new (0); | |
03d5f569 JM |
454 | if (new_string == NULL) |
455 | /* Allocation failed. */ | |
456 | return STATUS_ALLOCATION_FAILED; | |
457 | ||
458 | /* Link the new string to the front of the list of result strings. */ | |
eb383413 L |
459 | new_string->next = (string_list_t) dm->result; |
460 | dm->result = new_string; | |
03d5f569 | 461 | return STATUS_OK; |
eb383413 L |
462 | } |
463 | ||
464 | /* Removes and returns the topmost element on the demangled results | |
465 | stack for DM. The caller assumes ownership for the returned | |
466 | string. */ | |
467 | ||
468 | static string_list_t | |
469 | result_pop (dm) | |
470 | demangling_t dm; | |
471 | { | |
472 | string_list_t top = dm->result; | |
473 | dm->result = top->next; | |
474 | return top; | |
475 | } | |
476 | ||
59666b35 DD |
477 | /* Returns the current value of the caret for the result string. The |
478 | value is an offet from the end of the result string. */ | |
479 | ||
480 | static int | |
481 | result_get_caret (dm) | |
482 | demangling_t dm; | |
483 | { | |
484 | return ((string_list_t) result_string (dm))->caret_position; | |
485 | } | |
486 | ||
487 | /* Sets the value of the caret for the result string, counted as an | |
488 | offet from the end of the result string. */ | |
489 | ||
490 | static void | |
491 | result_set_caret (dm, position) | |
492 | demangling_t dm; | |
493 | int position; | |
494 | { | |
495 | ((string_list_t) result_string (dm))->caret_position = position; | |
496 | } | |
497 | ||
498 | /* Shifts the position of the next addition to the result by | |
499 | POSITION_OFFSET. A negative value shifts the caret to the left. */ | |
500 | ||
501 | static void | |
502 | result_shift_caret (dm, position_offset) | |
503 | demangling_t dm; | |
504 | int position_offset; | |
505 | { | |
506 | ((string_list_t) result_string (dm))->caret_position += position_offset; | |
507 | } | |
508 | ||
509 | /* Returns non-zero if the character that comes right before the place | |
510 | where text will be added to the result is a space. In this case, | |
511 | the caller should supress adding another space. */ | |
512 | ||
513 | static int | |
514 | result_previous_char_is_space (dm) | |
515 | demangling_t dm; | |
516 | { | |
517 | char *result = dyn_string_buf (result_string (dm)); | |
518 | int pos = result_caret_pos (dm); | |
519 | return pos > 0 && result[pos - 1] == ' '; | |
520 | } | |
521 | ||
eb383413 L |
522 | /* Returns the start position of a fragment of the demangled result |
523 | that will be a substitution candidate. Should be called at the | |
524 | start of productions that can add substitutions. */ | |
525 | ||
526 | static int | |
527 | substitution_start (dm) | |
528 | demangling_t dm; | |
529 | { | |
59666b35 | 530 | return result_caret_pos (dm); |
eb383413 L |
531 | } |
532 | ||
533 | /* Adds the suffix of the current demangled result of DM starting at | |
534 | START_POSITION as a potential substitution. If TEMPLATE_P is | |
74bcd529 | 535 | non-zero, this potential substitution is a template-id. */ |
eb383413 | 536 | |
03d5f569 | 537 | static status_t |
74bcd529 | 538 | substitution_add (dm, start_position, template_p) |
eb383413 L |
539 | demangling_t dm; |
540 | int start_position; | |
541 | int template_p; | |
eb383413 L |
542 | { |
543 | dyn_string_t result = result_string (dm); | |
544 | dyn_string_t substitution = dyn_string_new (0); | |
545 | int i; | |
546 | ||
03d5f569 JM |
547 | if (substitution == NULL) |
548 | return STATUS_ALLOCATION_FAILED; | |
549 | ||
550 | /* Extract the substring of the current demangling result that | |
551 | represents the subsitution candidate. */ | |
552 | if (!dyn_string_substring (substitution, | |
59666b35 | 553 | result, start_position, result_caret_pos (dm))) |
03d5f569 JM |
554 | { |
555 | dyn_string_delete (substitution); | |
556 | return STATUS_ALLOCATION_FAILED; | |
557 | } | |
eb383413 | 558 | |
eb383413 L |
559 | /* If there's no room for the new entry, grow the array. */ |
560 | if (dm->substitutions_allocated == dm->num_substitutions) | |
561 | { | |
03d5f569 | 562 | size_t new_array_size; |
74bcd529 DD |
563 | if (dm->substitutions_allocated > 0) |
564 | dm->substitutions_allocated *= 2; | |
565 | else | |
566 | dm->substitutions_allocated = 2; | |
03d5f569 JM |
567 | new_array_size = |
568 | sizeof (struct substitution_def) * dm->substitutions_allocated; | |
569 | ||
570 | dm->substitutions = (struct substitution_def *) | |
571 | realloc (dm->substitutions, new_array_size); | |
572 | if (dm->substitutions == NULL) | |
573 | /* Realloc failed. */ | |
574 | { | |
575 | dyn_string_delete (substitution); | |
576 | return STATUS_ALLOCATION_FAILED; | |
577 | } | |
eb383413 L |
578 | } |
579 | ||
580 | /* Add the substitution to the array. */ | |
74bcd529 | 581 | i = dm->num_substitutions++; |
eb383413 L |
582 | dm->substitutions[i].text = substitution; |
583 | dm->substitutions[i].template_p = template_p; | |
eb383413 L |
584 | |
585 | #ifdef CP_DEMANGLE_DEBUG | |
586 | substitutions_print (dm, stderr); | |
587 | #endif | |
03d5f569 JM |
588 | |
589 | return STATUS_OK; | |
eb383413 L |
590 | } |
591 | ||
592 | /* Returns the Nth-most-recent substitution. Sets *TEMPLATE_P to | |
593 | non-zero if the substitution is a template-id, zero otherwise. | |
594 | N is numbered from zero. DM retains ownership of the returned | |
595 | string. If N is negative, or equal to or greater than the current | |
596 | number of substitution candidates, returns NULL. */ | |
597 | ||
598 | static dyn_string_t | |
599 | substitution_get (dm, n, template_p) | |
600 | demangling_t dm; | |
601 | int n; | |
602 | int *template_p; | |
603 | { | |
604 | struct substitution_def *sub; | |
605 | ||
606 | /* Make sure N is in the valid range. */ | |
607 | if (n < 0 || n >= dm->num_substitutions) | |
608 | return NULL; | |
609 | ||
610 | sub = &(dm->substitutions[n]); | |
611 | *template_p = sub->template_p; | |
612 | return sub->text; | |
613 | } | |
614 | ||
615 | #ifdef CP_DEMANGLE_DEBUG | |
616 | /* Debugging routine to print the current substitutions to FP. */ | |
617 | ||
618 | static void | |
619 | substitutions_print (dm, fp) | |
620 | demangling_t dm; | |
621 | FILE *fp; | |
622 | { | |
623 | int seq_id; | |
624 | int num = dm->num_substitutions; | |
625 | ||
626 | fprintf (fp, "SUBSTITUTIONS:\n"); | |
627 | for (seq_id = -1; seq_id < num - 1; ++seq_id) | |
628 | { | |
629 | int template_p; | |
630 | dyn_string_t text = substitution_get (dm, seq_id + 1, &template_p); | |
631 | ||
632 | if (seq_id == -1) | |
633 | fprintf (fp, " S_ "); | |
634 | else | |
635 | fprintf (fp, " S%d_", seq_id); | |
636 | fprintf (fp, " %c: %s\n", template_p ? '*' : ' ', dyn_string_buf (text)); | |
637 | } | |
638 | } | |
639 | ||
640 | #endif /* CP_DEMANGLE_DEBUG */ | |
641 | ||
03d5f569 JM |
642 | /* Creates a new template argument list. Returns NULL if allocation |
643 | fails. */ | |
eb383413 L |
644 | |
645 | static template_arg_list_t | |
646 | template_arg_list_new () | |
647 | { | |
03d5f569 JM |
648 | template_arg_list_t new_list = |
649 | (template_arg_list_t) malloc (sizeof (struct template_arg_list_def)); | |
650 | if (new_list == NULL) | |
651 | return NULL; | |
eb383413 L |
652 | /* Initialize the new list to have no arguments. */ |
653 | new_list->first_argument = NULL; | |
654 | new_list->last_argument = NULL; | |
655 | /* Return the new list. */ | |
656 | return new_list; | |
657 | } | |
658 | ||
659 | /* Deletes a template argument list and the template arguments it | |
660 | contains. */ | |
661 | ||
662 | static void | |
663 | template_arg_list_delete (list) | |
664 | template_arg_list_t list; | |
665 | { | |
666 | /* If there are any arguments on LIST, delete them. */ | |
667 | if (list->first_argument != NULL) | |
668 | string_list_delete (list->first_argument); | |
669 | /* Delete LIST. */ | |
670 | free (list); | |
671 | } | |
672 | ||
673 | /* Adds ARG to the template argument list ARG_LIST. */ | |
674 | ||
675 | static void | |
676 | template_arg_list_add_arg (arg_list, arg) | |
677 | template_arg_list_t arg_list; | |
678 | string_list_t arg; | |
679 | { | |
680 | if (arg_list->first_argument == NULL) | |
681 | /* If there were no arguments before, ARG is the first one. */ | |
682 | arg_list->first_argument = arg; | |
683 | else | |
684 | /* Make ARG the last argument on the list. */ | |
685 | arg_list->last_argument->next = arg; | |
686 | /* Make ARG the last on the list. */ | |
687 | arg_list->last_argument = arg; | |
688 | arg->next = NULL; | |
689 | } | |
690 | ||
691 | /* Returns the template arugment at position INDEX in template | |
692 | argument list ARG_LIST. */ | |
693 | ||
694 | static string_list_t | |
695 | template_arg_list_get_arg (arg_list, index) | |
696 | template_arg_list_t arg_list; | |
697 | int index; | |
698 | { | |
699 | string_list_t arg = arg_list->first_argument; | |
700 | /* Scan down the list of arguments to find the one at position | |
701 | INDEX. */ | |
702 | while (index--) | |
703 | { | |
704 | arg = arg->next; | |
705 | if (arg == NULL) | |
706 | /* Ran out of arguments before INDEX hit zero. That's an | |
707 | error. */ | |
708 | return NULL; | |
709 | } | |
710 | /* Return the argument at position INDEX. */ | |
711 | return arg; | |
712 | } | |
713 | ||
714 | /* Pushes ARG_LIST onto the top of the template argument list stack. */ | |
715 | ||
716 | static void | |
717 | push_template_arg_list (dm, arg_list) | |
718 | demangling_t dm; | |
719 | template_arg_list_t arg_list; | |
720 | { | |
721 | arg_list->next = dm->template_arg_lists; | |
722 | dm->template_arg_lists = arg_list; | |
723 | #ifdef CP_DEMANGLE_DEBUG | |
724 | fprintf (stderr, " ** pushing template arg list\n"); | |
725 | template_arg_list_print (arg_list, stderr); | |
726 | #endif | |
727 | } | |
728 | ||
729 | /* Pops and deletes elements on the template argument list stack until | |
730 | arg_list is the topmost element. If arg_list is NULL, all elements | |
731 | are popped and deleted. */ | |
732 | ||
733 | static void | |
734 | pop_to_template_arg_list (dm, arg_list) | |
735 | demangling_t dm; | |
736 | template_arg_list_t arg_list; | |
737 | { | |
738 | while (dm->template_arg_lists != arg_list) | |
739 | { | |
740 | template_arg_list_t top = dm->template_arg_lists; | |
741 | /* Disconnect the topmost element from the list. */ | |
742 | dm->template_arg_lists = top->next; | |
743 | /* Delete the popped element. */ | |
744 | template_arg_list_delete (top); | |
745 | #ifdef CP_DEMANGLE_DEBUG | |
746 | fprintf (stderr, " ** removing template arg list\n"); | |
747 | #endif | |
748 | } | |
749 | } | |
750 | ||
751 | #ifdef CP_DEMANGLE_DEBUG | |
752 | ||
753 | /* Prints the contents of ARG_LIST to FP. */ | |
754 | ||
755 | static void | |
756 | template_arg_list_print (arg_list, fp) | |
757 | template_arg_list_t arg_list; | |
758 | FILE *fp; | |
759 | { | |
760 | string_list_t arg; | |
761 | int index = -1; | |
762 | ||
763 | fprintf (fp, "TEMPLATE ARGUMENT LIST:\n"); | |
764 | for (arg = arg_list->first_argument; arg != NULL; arg = arg->next) | |
765 | { | |
766 | if (index == -1) | |
767 | fprintf (fp, " T_ : "); | |
768 | else | |
769 | fprintf (fp, " T%d_ : ", index); | |
770 | ++index; | |
771 | fprintf (fp, "%s\n", dyn_string_buf ((dyn_string_t) arg)); | |
772 | } | |
773 | } | |
774 | ||
775 | #endif /* CP_DEMANGLE_DEBUG */ | |
776 | ||
777 | /* Returns the topmost element on the stack of template argument | |
778 | lists. If there is no list of template arguments, returns NULL. */ | |
779 | ||
780 | static template_arg_list_t | |
781 | current_template_arg_list (dm) | |
782 | demangling_t dm; | |
783 | { | |
784 | return dm->template_arg_lists; | |
785 | } | |
786 | ||
787 | /* Allocates a demangling_t object for demangling mangled NAME. A new | |
03d5f569 JM |
788 | result must be pushed before the returned object can be used. |
789 | Returns NULL if allocation fails. */ | |
eb383413 L |
790 | |
791 | static demangling_t | |
bc9bf259 | 792 | demangling_new (name, style) |
03d5f569 | 793 | const char *name; |
bc9bf259 | 794 | int style; |
eb383413 | 795 | { |
03d5f569 JM |
796 | demangling_t dm; |
797 | dm = (demangling_t) malloc (sizeof (struct demangling_def)); | |
798 | if (dm == NULL) | |
799 | return NULL; | |
eb383413 L |
800 | |
801 | dm->name = name; | |
802 | dm->next = name; | |
803 | dm->result = NULL; | |
eb383413 L |
804 | dm->num_substitutions = 0; |
805 | dm->substitutions_allocated = 10; | |
eb383413 | 806 | dm->template_arg_lists = NULL; |
03d5f569 JM |
807 | dm->last_source_name = dyn_string_new (0); |
808 | if (dm->last_source_name == NULL) | |
809 | return NULL; | |
810 | dm->substitutions = (struct substitution_def *) | |
811 | malloc (dm->substitutions_allocated * sizeof (struct substitution_def)); | |
812 | if (dm->substitutions == NULL) | |
813 | { | |
814 | dyn_string_delete (dm->last_source_name); | |
815 | return NULL; | |
816 | } | |
bc9bf259 | 817 | dm->style = style; |
eb383413 L |
818 | |
819 | return dm; | |
820 | } | |
821 | ||
822 | /* Deallocates a demangling_t object and all memory associated with | |
823 | it. */ | |
824 | ||
825 | static void | |
826 | demangling_delete (dm) | |
827 | demangling_t dm; | |
828 | { | |
829 | int i; | |
830 | template_arg_list_t arg_list = dm->template_arg_lists; | |
831 | ||
832 | /* Delete the stack of template argument lists. */ | |
833 | while (arg_list != NULL) | |
834 | { | |
835 | template_arg_list_t next = arg_list->next; | |
836 | template_arg_list_delete (arg_list); | |
837 | arg_list = next; | |
838 | } | |
839 | /* Delete the list of substitutions. */ | |
840 | for (i = dm->num_substitutions; --i >= 0; ) | |
841 | dyn_string_delete (dm->substitutions[i].text); | |
842 | free (dm->substitutions); | |
843 | /* Delete the demangled result. */ | |
844 | string_list_delete (dm->result); | |
845 | /* Delete the stored identifier name. */ | |
846 | dyn_string_delete (dm->last_source_name); | |
847 | /* Delete the context object itself. */ | |
848 | free (dm); | |
849 | } | |
850 | ||
851 | /* These functions demangle an alternative of the corresponding | |
852 | production in the mangling spec. The first argument of each is a | |
853 | demangling context structure for the current demangling | |
854 | operation. Most emit demangled text directly to the topmost result | |
855 | string on the result string stack in the demangling context | |
856 | structure. */ | |
857 | ||
858 | static status_t demangle_char | |
859 | PARAMS ((demangling_t, int)); | |
860 | static status_t demangle_mangled_name | |
861 | PARAMS ((demangling_t)); | |
862 | static status_t demangle_encoding | |
863 | PARAMS ((demangling_t)); | |
864 | static status_t demangle_name | |
865 | PARAMS ((demangling_t, int *)); | |
866 | static status_t demangle_nested_name | |
867 | PARAMS ((demangling_t, int *)); | |
868 | static status_t demangle_prefix | |
869 | PARAMS ((demangling_t, int *)); | |
870 | static status_t demangle_unqualified_name | |
74bcd529 | 871 | PARAMS ((demangling_t, int *)); |
eb383413 L |
872 | static status_t demangle_source_name |
873 | PARAMS ((demangling_t)); | |
874 | static status_t demangle_number | |
875 | PARAMS ((demangling_t, int *, int, int)); | |
876 | static status_t demangle_number_literally | |
877 | PARAMS ((demangling_t, dyn_string_t, int, int)); | |
878 | static status_t demangle_identifier | |
879 | PARAMS ((demangling_t, int, dyn_string_t)); | |
880 | static status_t demangle_operator_name | |
881 | PARAMS ((demangling_t, int, int *)); | |
74bcd529 DD |
882 | static status_t demangle_nv_offset |
883 | PARAMS ((demangling_t)); | |
884 | static status_t demangle_v_offset | |
885 | PARAMS ((demangling_t)); | |
886 | static status_t demangle_call_offset | |
887 | PARAMS ((demangling_t)); | |
eb383413 L |
888 | static status_t demangle_special_name |
889 | PARAMS ((demangling_t)); | |
890 | static status_t demangle_ctor_dtor_name | |
891 | PARAMS ((demangling_t)); | |
892 | static status_t demangle_type_ptr | |
74bcd529 | 893 | PARAMS ((demangling_t, int *, int)); |
eb383413 L |
894 | static status_t demangle_type |
895 | PARAMS ((demangling_t)); | |
896 | static status_t demangle_CV_qualifiers | |
897 | PARAMS ((demangling_t, dyn_string_t)); | |
898 | static status_t demangle_builtin_type | |
899 | PARAMS ((demangling_t)); | |
900 | static status_t demangle_function_type | |
74bcd529 | 901 | PARAMS ((demangling_t, int *)); |
eb383413 | 902 | static status_t demangle_bare_function_type |
74bcd529 | 903 | PARAMS ((demangling_t, int *)); |
eb383413 L |
904 | static status_t demangle_class_enum_type |
905 | PARAMS ((demangling_t, int *)); | |
906 | static status_t demangle_array_type | |
59666b35 | 907 | PARAMS ((demangling_t, int *)); |
eb383413 | 908 | static status_t demangle_template_param |
74bcd529 | 909 | PARAMS ((demangling_t)); |
eb383413 L |
910 | static status_t demangle_template_args |
911 | PARAMS ((demangling_t)); | |
912 | static status_t demangle_literal | |
913 | PARAMS ((demangling_t)); | |
914 | static status_t demangle_template_arg | |
915 | PARAMS ((demangling_t)); | |
916 | static status_t demangle_expression | |
917 | PARAMS ((demangling_t)); | |
918 | static status_t demangle_scope_expression | |
919 | PARAMS ((demangling_t)); | |
920 | static status_t demangle_expr_primary | |
921 | PARAMS ((demangling_t)); | |
922 | static status_t demangle_substitution | |
74bcd529 | 923 | PARAMS ((demangling_t, int *)); |
eb383413 L |
924 | static status_t demangle_local_name |
925 | PARAMS ((demangling_t)); | |
926 | static status_t demangle_discriminator | |
927 | PARAMS ((demangling_t, int)); | |
928 | static status_t cp_demangle | |
bc9bf259 | 929 | PARAMS ((const char *, dyn_string_t, int)); |
74bcd529 | 930 | #ifdef IN_LIBGCC2 |
03d5f569 JM |
931 | static status_t cp_demangle_type |
932 | PARAMS ((const char*, dyn_string_t)); | |
74bcd529 | 933 | #endif |
eb383413 L |
934 | |
935 | /* When passed to demangle_bare_function_type, indicates that the | |
936 | function's return type is not encoded before its parameter types. */ | |
74bcd529 | 937 | #define BFT_NO_RETURN_TYPE NULL |
eb383413 L |
938 | |
939 | /* Check that the next character is C. If so, consume it. If not, | |
940 | return an error. */ | |
941 | ||
942 | static status_t | |
943 | demangle_char (dm, c) | |
944 | demangling_t dm; | |
945 | int c; | |
946 | { | |
947 | static char *error_message = NULL; | |
948 | ||
949 | if (peek_char (dm) == c) | |
950 | { | |
951 | advance_char (dm); | |
952 | return STATUS_OK; | |
953 | } | |
954 | else | |
955 | { | |
956 | if (error_message == NULL) | |
957 | error_message = strdup ("Expected ?"); | |
958 | error_message[9] = c; | |
959 | return error_message; | |
960 | } | |
961 | } | |
962 | ||
963 | /* Demangles and emits a <mangled-name>. | |
964 | ||
965 | <mangled-name> ::= _Z <encoding> */ | |
966 | ||
967 | static status_t | |
968 | demangle_mangled_name (dm) | |
969 | demangling_t dm; | |
970 | { | |
971 | DEMANGLE_TRACE ("mangled-name", dm); | |
972 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
973 | RETURN_IF_ERROR (demangle_char (dm, 'Z')); | |
974 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
975 | return STATUS_OK; | |
976 | } | |
977 | ||
978 | /* Demangles and emits an <encoding>. | |
979 | ||
980 | <encoding> ::= <function name> <bare-function-type> | |
981 | ::= <data name> | |
03d5f569 | 982 | ::= <special-name> */ |
eb383413 L |
983 | |
984 | static status_t | |
985 | demangle_encoding (dm) | |
986 | demangling_t dm; | |
987 | { | |
74bcd529 | 988 | int encode_return_type; |
eb383413 | 989 | int start_position; |
eb383413 L |
990 | template_arg_list_t old_arg_list = current_template_arg_list (dm); |
991 | char peek = peek_char (dm); | |
992 | ||
993 | DEMANGLE_TRACE ("encoding", dm); | |
994 | ||
995 | /* Remember where the name starts. If it turns out to be a template | |
996 | function, we'll have to insert the return type here. */ | |
59666b35 | 997 | start_position = result_caret_pos (dm); |
eb383413 | 998 | |
03d5f569 | 999 | if (peek == 'G' || peek == 'T') |
eb383413 L |
1000 | RETURN_IF_ERROR (demangle_special_name (dm)); |
1001 | else | |
1002 | { | |
1003 | /* Now demangle the name. */ | |
74bcd529 | 1004 | RETURN_IF_ERROR (demangle_name (dm, &encode_return_type)); |
eb383413 L |
1005 | |
1006 | /* If there's anything left, the name was a function name, with | |
59666b35 | 1007 | maybe its return type, and its parameter types, following. */ |
eb383413 L |
1008 | if (!end_of_name_p (dm) |
1009 | && peek_char (dm) != 'E') | |
1010 | { | |
74bcd529 | 1011 | if (encode_return_type) |
eb383413 L |
1012 | /* Template functions have their return type encoded. The |
1013 | return type should be inserted at start_position. */ | |
1014 | RETURN_IF_ERROR | |
74bcd529 | 1015 | (demangle_bare_function_type (dm, &start_position)); |
eb383413 L |
1016 | else |
1017 | /* Non-template functions don't have their return type | |
1018 | encoded. */ | |
1019 | RETURN_IF_ERROR | |
1020 | (demangle_bare_function_type (dm, BFT_NO_RETURN_TYPE)); | |
1021 | } | |
eb383413 L |
1022 | } |
1023 | ||
1024 | /* Pop off template argument lists that were built during the | |
1025 | mangling of this name, to restore the old template context. */ | |
1026 | pop_to_template_arg_list (dm, old_arg_list); | |
1027 | ||
1028 | return STATUS_OK; | |
1029 | } | |
1030 | ||
1031 | /* Demangles and emits a <name>. | |
1032 | ||
1033 | <name> ::= <unscoped-name> | |
1034 | ::= <unscoped-template-name> <template-args> | |
1035 | ::= <nested-name> | |
1036 | ::= <local-name> | |
1037 | ||
1038 | <unscoped-name> ::= <unqualified-name> | |
1039 | ::= St <unqualified-name> # ::std:: | |
1040 | ||
1041 | <unscoped-template-name> | |
1042 | ::= <unscoped-name> | |
1043 | ::= <substitution> */ | |
1044 | ||
1045 | static status_t | |
74bcd529 | 1046 | demangle_name (dm, encode_return_type) |
eb383413 | 1047 | demangling_t dm; |
74bcd529 | 1048 | int *encode_return_type; |
eb383413 | 1049 | { |
eb383413 | 1050 | int start = substitution_start (dm); |
74bcd529 DD |
1051 | char peek = peek_char (dm); |
1052 | int is_std_substitution = 0; | |
1053 | ||
1054 | /* Generally, the return type is encoded if the function is a | |
1055 | template-id, and suppressed otherwise. There are a few cases, | |
1056 | though, in which the return type is not encoded even for a | |
1057 | templated function. In these cases, this flag is set. */ | |
1058 | int suppress_return_type = 0; | |
eb383413 L |
1059 | |
1060 | DEMANGLE_TRACE ("name", dm); | |
1061 | ||
74bcd529 | 1062 | switch (peek) |
eb383413 L |
1063 | { |
1064 | case 'N': | |
1065 | /* This is a <nested-name>. */ | |
74bcd529 | 1066 | RETURN_IF_ERROR (demangle_nested_name (dm, encode_return_type)); |
eb383413 L |
1067 | break; |
1068 | ||
1069 | case 'Z': | |
1070 | RETURN_IF_ERROR (demangle_local_name (dm)); | |
74bcd529 | 1071 | *encode_return_type = 0; |
eb383413 L |
1072 | break; |
1073 | ||
1074 | case 'S': | |
1075 | /* The `St' substitution allows a name nested in std:: to appear | |
03d5f569 | 1076 | without being enclosed in a nested name. */ |
eb383413 L |
1077 | if (peek_char_next (dm) == 't') |
1078 | { | |
1079 | (void) next_char (dm); | |
1080 | (void) next_char (dm); | |
59666b35 | 1081 | RETURN_IF_ERROR (result_add (dm, "std::")); |
74bcd529 DD |
1082 | RETURN_IF_ERROR |
1083 | (demangle_unqualified_name (dm, &suppress_return_type)); | |
1084 | is_std_substitution = 1; | |
eb383413 L |
1085 | } |
1086 | else | |
74bcd529 | 1087 | RETURN_IF_ERROR (demangle_substitution (dm, encode_return_type)); |
03d5f569 JM |
1088 | /* Check if a template argument list immediately follows. |
1089 | If so, then we just demangled an <unqualified-template-name>. */ | |
1090 | if (peek_char (dm) == 'I') | |
1091 | { | |
74bcd529 DD |
1092 | /* A template name of the form std::<unqualified-name> is a |
1093 | substitution candidate. */ | |
1094 | if (is_std_substitution) | |
1095 | RETURN_IF_ERROR (substitution_add (dm, start, 0)); | |
1096 | /* Demangle the <template-args> here. */ | |
03d5f569 | 1097 | RETURN_IF_ERROR (demangle_template_args (dm)); |
74bcd529 | 1098 | *encode_return_type = !suppress_return_type; |
03d5f569 | 1099 | } |
74bcd529 DD |
1100 | else |
1101 | *encode_return_type = 0; | |
1102 | ||
eb383413 L |
1103 | break; |
1104 | ||
1105 | default: | |
1106 | /* This is an <unscoped-name> or <unscoped-template-name>. */ | |
74bcd529 | 1107 | RETURN_IF_ERROR (demangle_unqualified_name (dm, &suppress_return_type)); |
eb383413 L |
1108 | |
1109 | /* If the <unqualified-name> is followed by template args, this | |
1110 | is an <unscoped-template-name>. */ | |
1111 | if (peek_char (dm) == 'I') | |
1112 | { | |
1113 | /* Add a substitution for the unqualified template name. */ | |
74bcd529 | 1114 | RETURN_IF_ERROR (substitution_add (dm, start, 0)); |
eb383413 L |
1115 | |
1116 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
74bcd529 | 1117 | *encode_return_type = !suppress_return_type; |
eb383413 L |
1118 | } |
1119 | else | |
74bcd529 | 1120 | *encode_return_type = 0; |
eb383413 L |
1121 | |
1122 | break; | |
1123 | } | |
1124 | ||
1125 | return STATUS_OK; | |
1126 | } | |
1127 | ||
1128 | /* Demangles and emits a <nested-name>. | |
1129 | ||
74bcd529 | 1130 | <nested-name> ::= N [<CV-qualifiers>] <prefix> <unqulified-name> E */ |
eb383413 L |
1131 | |
1132 | static status_t | |
74bcd529 | 1133 | demangle_nested_name (dm, encode_return_type) |
eb383413 | 1134 | demangling_t dm; |
74bcd529 | 1135 | int *encode_return_type; |
eb383413 L |
1136 | { |
1137 | char peek; | |
1138 | ||
1139 | DEMANGLE_TRACE ("nested-name", dm); | |
1140 | ||
1141 | RETURN_IF_ERROR (demangle_char (dm, 'N')); | |
1142 | ||
1143 | peek = peek_char (dm); | |
1144 | if (peek == 'r' || peek == 'V' || peek == 'K') | |
1145 | { | |
59666b35 | 1146 | dyn_string_t cv_qualifiers; |
03d5f569 JM |
1147 | status_t status; |
1148 | ||
59666b35 DD |
1149 | /* Snarf up CV qualifiers. */ |
1150 | cv_qualifiers = dyn_string_new (24); | |
03d5f569 JM |
1151 | if (cv_qualifiers == NULL) |
1152 | return STATUS_ALLOCATION_FAILED; | |
eb383413 | 1153 | demangle_CV_qualifiers (dm, cv_qualifiers); |
59666b35 DD |
1154 | |
1155 | /* Emit them, preceded by a space. */ | |
1156 | status = result_add_char (dm, ' '); | |
1157 | if (STATUS_NO_ERROR (status)) | |
1158 | status = result_add_string (dm, cv_qualifiers); | |
1159 | /* The CV qualifiers that occur in a <nested-name> will be | |
1160 | qualifiers for member functions. These are placed at the end | |
1161 | of the function. Therefore, shift the caret to the left by | |
1162 | the length of the qualifiers, so other text is inserted | |
1163 | before them and they stay at the end. */ | |
1164 | result_shift_caret (dm, -dyn_string_length (cv_qualifiers) - 1); | |
1165 | /* Clean up. */ | |
eb383413 | 1166 | dyn_string_delete (cv_qualifiers); |
03d5f569 | 1167 | RETURN_IF_ERROR (status); |
eb383413 | 1168 | } |
59666b35 | 1169 | |
74bcd529 DD |
1170 | RETURN_IF_ERROR (demangle_prefix (dm, encode_return_type)); |
1171 | /* No need to demangle the final <unqualified-name>; demangle_prefix | |
1172 | will handle it. */ | |
eb383413 L |
1173 | RETURN_IF_ERROR (demangle_char (dm, 'E')); |
1174 | ||
1175 | return STATUS_OK; | |
1176 | } | |
1177 | ||
1178 | /* Demangles and emits a <prefix>. | |
1179 | ||
74bcd529 | 1180 | <prefix> ::= <prefix> <unqualified-name> |
eb383413 L |
1181 | ::= <template-prefix> <template-args> |
1182 | ::= # empty | |
1183 | ::= <substitution> | |
1184 | ||
1185 | <template-prefix> ::= <prefix> | |
74bcd529 | 1186 | ::= <substitution> */ |
eb383413 L |
1187 | |
1188 | static status_t | |
74bcd529 | 1189 | demangle_prefix (dm, encode_return_type) |
eb383413 | 1190 | demangling_t dm; |
74bcd529 | 1191 | int *encode_return_type; |
eb383413 L |
1192 | { |
1193 | int start = substitution_start (dm); | |
1194 | int nested = 0; | |
1195 | ||
74bcd529 DD |
1196 | /* ENCODE_RETURN_TYPE is updated as we decend the nesting chain. |
1197 | After <template-args>, it is set to non-zero; after everything | |
1198 | else it is set to zero. */ | |
1199 | ||
1200 | /* Generally, the return type is encoded if the function is a | |
1201 | template-id, and suppressed otherwise. There are a few cases, | |
1202 | though, in which the return type is not encoded even for a | |
1203 | templated function. In these cases, this flag is set. */ | |
1204 | int suppress_return_type = 0; | |
eb383413 L |
1205 | |
1206 | DEMANGLE_TRACE ("prefix", dm); | |
1207 | ||
1208 | while (1) | |
1209 | { | |
1210 | char peek; | |
eb383413 L |
1211 | |
1212 | if (end_of_name_p (dm)) | |
1213 | return "Unexpected end of name in <compound-name>."; | |
1214 | ||
1215 | peek = peek_char (dm); | |
1216 | ||
74bcd529 DD |
1217 | /* We'll initialize suppress_return_type to false, and set it to true |
1218 | if we end up demangling a constructor name. However, make | |
1219 | sure we're not actually about to demangle template arguments | |
1220 | -- if so, this is the <template-args> following a | |
1221 | <template-prefix>, so we'll want the previous flag value | |
1222 | around. */ | |
1223 | if (peek != 'I') | |
1224 | suppress_return_type = 0; | |
1225 | ||
03d5f569 | 1226 | if (IS_DIGIT ((unsigned char) peek) |
eb383413 L |
1227 | || (peek >= 'a' && peek <= 'z') |
1228 | || peek == 'C' || peek == 'D' | |
1229 | || peek == 'S') | |
1230 | { | |
1231 | /* We have another level of scope qualification. */ | |
1232 | if (nested) | |
bc9bf259 | 1233 | RETURN_IF_ERROR (result_add (dm, NAMESPACE_SEPARATOR)); |
eb383413 L |
1234 | else |
1235 | nested = 1; | |
1236 | ||
1237 | if (peek == 'S') | |
1238 | /* The substitution determines whether this is a | |
74bcd529 DD |
1239 | template-id. */ |
1240 | RETURN_IF_ERROR (demangle_substitution (dm, encode_return_type)); | |
eb383413 L |
1241 | else |
1242 | { | |
74bcd529 DD |
1243 | /* It's just a name. */ |
1244 | RETURN_IF_ERROR | |
1245 | (demangle_unqualified_name (dm, &suppress_return_type)); | |
1246 | *encode_return_type = 0; | |
eb383413 L |
1247 | } |
1248 | } | |
1249 | else if (peek == 'Z') | |
1250 | RETURN_IF_ERROR (demangle_local_name (dm)); | |
1251 | else if (peek == 'I') | |
1252 | { | |
eb383413 | 1253 | RETURN_IF_ERROR (demangle_template_args (dm)); |
74bcd529 DD |
1254 | |
1255 | /* Now we want to indicate to the caller that we've | |
1256 | demangled template arguments, thus the prefix was a | |
1257 | <template-prefix>. That's so that the caller knows to | |
1258 | demangle the function's return type, if this turns out to | |
1259 | be a function name. But, if it's a member template | |
1260 | constructor or a templated conversion operator, report it | |
1261 | as untemplated. Those never get encoded return types. */ | |
1262 | *encode_return_type = !suppress_return_type; | |
eb383413 L |
1263 | } |
1264 | else if (peek == 'E') | |
1265 | /* All done. */ | |
1266 | return STATUS_OK; | |
1267 | else | |
1268 | return "Unexpected character in <compound-name>."; | |
1269 | ||
74bcd529 DD |
1270 | if (peek != 'S' |
1271 | && peek_char (dm) != 'E') | |
1272 | /* Add a new substitution for the prefix thus far. */ | |
1273 | RETURN_IF_ERROR (substitution_add (dm, start, *encode_return_type)); | |
eb383413 L |
1274 | } |
1275 | } | |
1276 | ||
74bcd529 DD |
1277 | /* Demangles and emits an <unqualified-name>. If this |
1278 | <unqualified-name> is for a special function type that should never | |
1279 | have its return type encoded (particularly, a constructor or | |
1280 | conversion operator), *SUPPRESS_RETURN_TYPE is set to 1; otherwise, | |
1281 | it is set to zero. | |
eb383413 L |
1282 | |
1283 | <unqualified-name> ::= <operator-name> | |
1284 | ::= <special-name> | |
1285 | ::= <source-name> */ | |
1286 | ||
1287 | static status_t | |
74bcd529 | 1288 | demangle_unqualified_name (dm, suppress_return_type) |
eb383413 | 1289 | demangling_t dm; |
74bcd529 | 1290 | int *suppress_return_type; |
eb383413 L |
1291 | { |
1292 | char peek = peek_char (dm); | |
1293 | ||
1294 | DEMANGLE_TRACE ("unqualified-name", dm); | |
1295 | ||
74bcd529 DD |
1296 | /* By default, don't force suppression of the return type (though |
1297 | non-template functions still don't get a return type encoded). */ | |
1298 | *suppress_return_type = 0; | |
1299 | ||
03d5f569 | 1300 | if (IS_DIGIT ((unsigned char) peek)) |
eb383413 L |
1301 | RETURN_IF_ERROR (demangle_source_name (dm)); |
1302 | else if (peek >= 'a' && peek <= 'z') | |
1303 | { | |
1304 | int num_args; | |
74bcd529 DD |
1305 | |
1306 | /* Conversion operators never have a return type encoded. */ | |
1307 | if (peek == 'c' && peek_char_next (dm) == 'v') | |
1308 | *suppress_return_type = 1; | |
1309 | ||
eb383413 L |
1310 | RETURN_IF_ERROR (demangle_operator_name (dm, 0, &num_args)); |
1311 | } | |
1312 | else if (peek == 'C' || peek == 'D') | |
74bcd529 DD |
1313 | { |
1314 | /* Constructors never have a return type encoded. */ | |
1315 | if (peek == 'C') | |
1316 | *suppress_return_type = 1; | |
1317 | ||
1318 | RETURN_IF_ERROR (demangle_ctor_dtor_name (dm)); | |
1319 | } | |
eb383413 L |
1320 | else |
1321 | return "Unexpected character in <unqualified-name>."; | |
1322 | ||
1323 | return STATUS_OK; | |
1324 | } | |
1325 | ||
1326 | /* Demangles and emits <source-name>. | |
1327 | ||
1328 | <source-name> ::= <length number> <identifier> */ | |
1329 | ||
1330 | static status_t | |
1331 | demangle_source_name (dm) | |
1332 | demangling_t dm; | |
1333 | { | |
1334 | int length; | |
1335 | ||
1336 | DEMANGLE_TRACE ("source-name", dm); | |
1337 | ||
1338 | /* Decode the length of the identifier. */ | |
1339 | RETURN_IF_ERROR (demangle_number (dm, &length, 10, 0)); | |
1340 | if (length == 0) | |
1341 | return "Zero length in <source-name>."; | |
1342 | ||
1343 | /* Now the identifier itself. It's placed into last_source_name, | |
1344 | where it can be used to build a constructor or destructor name. */ | |
1345 | RETURN_IF_ERROR (demangle_identifier (dm, length, | |
1346 | dm->last_source_name)); | |
1347 | ||
1348 | /* Emit it. */ | |
59666b35 | 1349 | RETURN_IF_ERROR (result_add_string (dm, dm->last_source_name)); |
eb383413 L |
1350 | |
1351 | return STATUS_OK; | |
1352 | } | |
1353 | ||
1354 | /* Demangles a number, either a <number> or a <positive-number> at the | |
1355 | current position, consuming all consecutive digit characters. Sets | |
1356 | *VALUE to the resulting numberand returns STATUS_OK. The number is | |
1357 | interpreted as BASE, which must be either 10 or 36. If IS_SIGNED | |
1358 | is non-zero, negative numbers -- prefixed with `n' -- are accepted. | |
1359 | ||
1360 | <number> ::= [n] <positive-number> | |
1361 | ||
1362 | <positive-number> ::= <decimal integer> */ | |
1363 | ||
1364 | static status_t | |
1365 | demangle_number (dm, value, base, is_signed) | |
1366 | demangling_t dm; | |
1367 | int *value; | |
1368 | int base; | |
1369 | int is_signed; | |
1370 | { | |
1371 | dyn_string_t number = dyn_string_new (10); | |
1372 | ||
1373 | DEMANGLE_TRACE ("number", dm); | |
1374 | ||
03d5f569 JM |
1375 | if (number == NULL) |
1376 | return STATUS_ALLOCATION_FAILED; | |
1377 | ||
eb383413 L |
1378 | demangle_number_literally (dm, number, base, is_signed); |
1379 | *value = strtol (dyn_string_buf (number), NULL, base); | |
1380 | dyn_string_delete (number); | |
1381 | ||
1382 | return STATUS_OK; | |
1383 | } | |
1384 | ||
1385 | /* Demangles a number at the current position. The digits (and minus | |
1386 | sign, if present) that make up the number are appended to STR. | |
1387 | Only base-BASE digits are accepted; BASE must be either 10 or 36. | |
1388 | If IS_SIGNED, negative numbers -- prefixed with `n' -- are | |
1389 | accepted. Does not consume a trailing underscore or other | |
1390 | terminating character. */ | |
1391 | ||
1392 | static status_t | |
1393 | demangle_number_literally (dm, str, base, is_signed) | |
1394 | demangling_t dm; | |
1395 | dyn_string_t str; | |
1396 | int base; | |
1397 | int is_signed; | |
1398 | { | |
1399 | DEMANGLE_TRACE ("number*", dm); | |
1400 | ||
1401 | if (base != 10 && base != 36) | |
1402 | return STATUS_INTERNAL_ERROR; | |
1403 | ||
1404 | /* An `n' denotes a negative number. */ | |
1405 | if (is_signed && peek_char (dm) == 'n') | |
1406 | { | |
1407 | /* Skip past the n. */ | |
1408 | advance_char (dm); | |
1409 | /* The normal way to write a negative number is with a minus | |
1410 | sign. */ | |
03d5f569 JM |
1411 | if (!dyn_string_append_char (str, '-')) |
1412 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
1413 | } |
1414 | ||
1415 | /* Loop until we hit a non-digit. */ | |
1416 | while (1) | |
1417 | { | |
1418 | char peek = peek_char (dm); | |
03d5f569 | 1419 | if (IS_DIGIT ((unsigned char) peek) |
eb383413 | 1420 | || (base == 36 && peek >= 'A' && peek <= 'Z')) |
03d5f569 JM |
1421 | { |
1422 | /* Accumulate digits. */ | |
1423 | if (!dyn_string_append_char (str, next_char (dm))) | |
1424 | return STATUS_ALLOCATION_FAILED; | |
1425 | } | |
eb383413 L |
1426 | else |
1427 | /* Not a digit? All done. */ | |
1428 | break; | |
1429 | } | |
1430 | ||
1431 | return STATUS_OK; | |
1432 | } | |
1433 | ||
1434 | /* Demangles an identifier at the current position of LENGTH | |
1435 | characters and places it in IDENTIFIER. */ | |
1436 | ||
1437 | static status_t | |
1438 | demangle_identifier (dm, length, identifier) | |
1439 | demangling_t dm; | |
1440 | int length; | |
1441 | dyn_string_t identifier; | |
1442 | { | |
1443 | DEMANGLE_TRACE ("identifier", dm); | |
1444 | ||
1445 | dyn_string_clear (identifier); | |
03d5f569 JM |
1446 | if (!dyn_string_resize (identifier, length)) |
1447 | return STATUS_ALLOCATION_FAILED; | |
1448 | ||
eb383413 L |
1449 | while (length-- > 0) |
1450 | { | |
1451 | if (end_of_name_p (dm)) | |
1452 | return "Unexpected end of name in <identifier>."; | |
03d5f569 JM |
1453 | if (!dyn_string_append_char (identifier, next_char (dm))) |
1454 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
1455 | } |
1456 | ||
74bcd529 DD |
1457 | /* GCC encodes anonymous namespaces using a `_GLOBAL_[_.$]N.' |
1458 | followed by the source file name and some random characters. | |
1459 | Unless we're in strict mode, decipher these names appropriately. */ | |
1460 | if (!flag_strict) | |
1461 | { | |
1462 | char *name = dyn_string_buf (identifier); | |
1463 | int prefix_length = strlen (ANONYMOUS_NAMESPACE_PREFIX); | |
1464 | ||
1465 | /* Compare the first, fixed part. */ | |
1466 | if (strncmp (name, ANONYMOUS_NAMESPACE_PREFIX, prefix_length) == 0) | |
1467 | { | |
1468 | name += prefix_length; | |
1469 | /* The next character might be a period, an underscore, or | |
1470 | dollar sign, depending on the target architecture's | |
1471 | assembler's capabilities. After that comes an `N'. */ | |
1472 | if ((*name == '.' || *name == '_' || *name == '$') | |
1473 | && *(name + 1) == 'N') | |
1474 | /* This looks like the anonymous namespace identifier. | |
1475 | Replace it with something comprehensible. */ | |
1476 | dyn_string_copy_cstr (identifier, "(anonymous namespace)"); | |
1477 | } | |
1478 | } | |
1479 | ||
eb383413 L |
1480 | return STATUS_OK; |
1481 | } | |
1482 | ||
1483 | /* Demangles and emits an <operator-name>. If SHORT_NAME is non-zero, | |
1484 | the short form is emitted; otherwise the full source form | |
1485 | (`operator +' etc.) is emitted. *NUM_ARGS is set to the number of | |
1486 | operands that the operator takes. | |
1487 | ||
1488 | <operator-name> | |
1489 | ::= nw # new | |
1490 | ::= na # new[] | |
1491 | ::= dl # delete | |
1492 | ::= da # delete[] | |
1493 | ::= ps # + (unary) | |
1494 | ::= ng # - (unary) | |
1495 | ::= ad # & (unary) | |
1496 | ::= de # * (unary) | |
1497 | ::= co # ~ | |
1498 | ::= pl # + | |
1499 | ::= mi # - | |
1500 | ::= ml # * | |
1501 | ::= dv # / | |
1502 | ::= rm # % | |
1503 | ::= an # & | |
1504 | ::= or # | | |
1505 | ::= eo # ^ | |
1506 | ::= aS # = | |
1507 | ::= pL # += | |
1508 | ::= mI # -= | |
1509 | ::= mL # *= | |
1510 | ::= dV # /= | |
1511 | ::= rM # %= | |
1512 | ::= aN # &= | |
1513 | ::= oR # |= | |
1514 | ::= eO # ^= | |
1515 | ::= ls # << | |
1516 | ::= rs # >> | |
1517 | ::= lS # <<= | |
1518 | ::= rS # >>= | |
1519 | ::= eq # == | |
1520 | ::= ne # != | |
1521 | ::= lt # < | |
1522 | ::= gt # > | |
1523 | ::= le # <= | |
1524 | ::= ge # >= | |
1525 | ::= nt # ! | |
1526 | ::= aa # && | |
1527 | ::= oo # || | |
1528 | ::= pp # ++ | |
1529 | ::= mm # -- | |
1530 | ::= cm # , | |
1531 | ::= pm # ->* | |
1532 | ::= pt # -> | |
1533 | ::= cl # () | |
1534 | ::= ix # [] | |
1535 | ::= qu # ? | |
1536 | ::= sz # sizeof | |
1537 | ::= cv <type> # cast | |
74bcd529 | 1538 | ::= v [0-9] <source-name> # vendor extended operator */ |
eb383413 L |
1539 | |
1540 | static status_t | |
1541 | demangle_operator_name (dm, short_name, num_args) | |
1542 | demangling_t dm; | |
1543 | int short_name; | |
1544 | int *num_args; | |
1545 | { | |
1546 | struct operator_code | |
1547 | { | |
1548 | /* The mangled code for this operator. */ | |
1549 | const char *code; | |
1550 | /* The source name of this operator. */ | |
1551 | const char *name; | |
1552 | /* The number of arguments this operator takes. */ | |
1553 | int num_args; | |
1554 | }; | |
1555 | ||
1556 | static const struct operator_code operators[] = | |
1557 | { | |
1558 | { "aN", "&=" , 2 }, | |
1559 | { "aS", "=" , 2 }, | |
1560 | { "aa", "&&" , 2 }, | |
1561 | { "ad", "&" , 1 }, | |
1562 | { "an", "&" , 2 }, | |
1563 | { "cl", "()" , 0 }, | |
1564 | { "cm", "," , 2 }, | |
1565 | { "co", "~" , 1 }, | |
1566 | { "dV", "/=" , 2 }, | |
1567 | { "da", " delete[]", 1 }, | |
1568 | { "de", "*" , 1 }, | |
1569 | { "dl", " delete" , 1 }, | |
1570 | { "dv", "/" , 2 }, | |
1571 | { "eO", "^=" , 2 }, | |
1572 | { "eo", "^" , 2 }, | |
1573 | { "eq", "==" , 2 }, | |
1574 | { "ge", ">=" , 2 }, | |
1575 | { "gt", ">" , 2 }, | |
1576 | { "ix", "[]" , 2 }, | |
1577 | { "lS", "<<=" , 2 }, | |
1578 | { "le", "<=" , 2 }, | |
1579 | { "ls", "<<" , 2 }, | |
1580 | { "lt", "<" , 2 }, | |
1581 | { "mI", "-=" , 2 }, | |
1582 | { "mL", "*=" , 2 }, | |
1583 | { "mi", "-" , 2 }, | |
1584 | { "ml", "*" , 2 }, | |
1585 | { "mm", "--" , 1 }, | |
1586 | { "na", " new[]" , 1 }, | |
1587 | { "ne", "!=" , 2 }, | |
1588 | { "ng", "-" , 1 }, | |
1589 | { "nt", "!" , 1 }, | |
1590 | { "nw", " new" , 1 }, | |
1591 | { "oR", "|=" , 2 }, | |
1592 | { "oo", "||" , 2 }, | |
1593 | { "or", "|" , 2 }, | |
1594 | { "pL", "+=" , 2 }, | |
1595 | { "pl", "+" , 2 }, | |
1596 | { "pm", "->*" , 2 }, | |
1597 | { "pp", "++" , 1 }, | |
1598 | { "ps", "+" , 1 }, | |
74bcd529 | 1599 | { "pt", "->" , 2 }, |
eb383413 L |
1600 | { "qu", "?" , 3 }, |
1601 | { "rM", "%=" , 2 }, | |
1602 | { "rS", ">>=" , 2 }, | |
1603 | { "rm", "%" , 2 }, | |
1604 | { "rs", ">>" , 2 }, | |
1605 | { "sz", " sizeof" , 1 } | |
1606 | }; | |
1607 | ||
1608 | const int num_operators = | |
1609 | sizeof (operators) / sizeof (struct operator_code); | |
1610 | ||
1611 | int c0 = next_char (dm); | |
1612 | int c1 = next_char (dm); | |
1613 | const struct operator_code* p1 = operators; | |
1614 | const struct operator_code* p2 = operators + num_operators; | |
1615 | ||
1616 | DEMANGLE_TRACE ("operator-name", dm); | |
1617 | ||
74bcd529 DD |
1618 | /* Is this a vendor-extended operator? */ |
1619 | if (c0 == 'v' && IS_DIGIT (c1)) | |
eb383413 | 1620 | { |
59666b35 | 1621 | RETURN_IF_ERROR (result_add (dm, "operator ")); |
eb383413 L |
1622 | RETURN_IF_ERROR (demangle_source_name (dm)); |
1623 | *num_args = 0; | |
1624 | return STATUS_OK; | |
1625 | } | |
1626 | ||
1627 | /* Is this a conversion operator? */ | |
1628 | if (c0 == 'c' && c1 == 'v') | |
1629 | { | |
59666b35 | 1630 | RETURN_IF_ERROR (result_add (dm, "operator ")); |
eb383413 L |
1631 | /* Demangle the converted-to type. */ |
1632 | RETURN_IF_ERROR (demangle_type (dm)); | |
1633 | *num_args = 0; | |
1634 | return STATUS_OK; | |
1635 | } | |
1636 | ||
1637 | /* Perform a binary search for the operator code. */ | |
1638 | while (1) | |
1639 | { | |
1640 | const struct operator_code* p = p1 + (p2 - p1) / 2; | |
1641 | char match0 = p->code[0]; | |
1642 | char match1 = p->code[1]; | |
1643 | ||
1644 | if (c0 == match0 && c1 == match1) | |
1645 | /* Found it. */ | |
1646 | { | |
1647 | if (!short_name) | |
59666b35 DD |
1648 | RETURN_IF_ERROR (result_add (dm, "operator")); |
1649 | RETURN_IF_ERROR (result_add (dm, p->name)); | |
eb383413 L |
1650 | *num_args = p->num_args; |
1651 | ||
1652 | return STATUS_OK; | |
1653 | } | |
1654 | ||
1655 | if (p == p1) | |
1656 | /* Couldn't find it. */ | |
1657 | return "Unknown code in <operator-name>."; | |
1658 | ||
1659 | /* Try again. */ | |
1660 | if (c0 < match0 || (c0 == match0 && c1 < match1)) | |
1661 | p2 = p; | |
1662 | else | |
1663 | p1 = p; | |
1664 | } | |
1665 | } | |
1666 | ||
74bcd529 DD |
1667 | /* Demangles and omits an <nv-offset>. |
1668 | ||
1669 | <nv-offset> ::= <offset number> # non-virtual base override */ | |
1670 | ||
1671 | static status_t | |
1672 | demangle_nv_offset (dm) | |
1673 | demangling_t dm; | |
1674 | { | |
1675 | dyn_string_t number; | |
1676 | status_t status = STATUS_OK; | |
1677 | ||
1678 | DEMANGLE_TRACE ("h-offset", dm); | |
1679 | ||
1680 | /* Demangle the offset. */ | |
1681 | number = dyn_string_new (4); | |
1682 | if (number == NULL) | |
1683 | return STATUS_ALLOCATION_FAILED; | |
1684 | demangle_number_literally (dm, number, 10, 1); | |
1685 | ||
1686 | /* Don't display the offset unless in verbose mode. */ | |
1687 | if (flag_verbose) | |
1688 | { | |
59666b35 | 1689 | status = result_add (dm, " [nv:"); |
74bcd529 | 1690 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1691 | status = result_add_string (dm, number); |
74bcd529 | 1692 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1693 | status = result_add_char (dm, ']'); |
74bcd529 DD |
1694 | } |
1695 | ||
1696 | /* Clean up. */ | |
1697 | dyn_string_delete (number); | |
1698 | RETURN_IF_ERROR (status); | |
1699 | return STATUS_OK; | |
1700 | } | |
1701 | ||
1702 | /* Demangles and emits a <v-offset>. | |
1703 | ||
1704 | <v-offset> ::= <offset number> _ <virtual offset number> | |
1705 | # virtual base override, with vcall offset */ | |
1706 | ||
1707 | static status_t | |
1708 | demangle_v_offset (dm) | |
1709 | demangling_t dm; | |
1710 | { | |
1711 | dyn_string_t number; | |
1712 | status_t status = STATUS_OK; | |
1713 | ||
1714 | DEMANGLE_TRACE ("v-offset", dm); | |
1715 | ||
1716 | /* Demangle the offset. */ | |
1717 | number = dyn_string_new (4); | |
1718 | if (number == NULL) | |
1719 | return STATUS_ALLOCATION_FAILED; | |
1720 | demangle_number_literally (dm, number, 10, 1); | |
1721 | ||
1722 | /* Don't display the offset unless in verbose mode. */ | |
1723 | if (flag_verbose) | |
1724 | { | |
59666b35 | 1725 | status = result_add (dm, " [v:"); |
74bcd529 | 1726 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1727 | status = result_add_string (dm, number); |
74bcd529 | 1728 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1729 | result_add_char (dm, ','); |
74bcd529 DD |
1730 | } |
1731 | dyn_string_delete (number); | |
1732 | RETURN_IF_ERROR (status); | |
1733 | ||
1734 | /* Demangle the separator. */ | |
1735 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1736 | ||
1737 | /* Demangle the vcall offset. */ | |
1738 | number = dyn_string_new (4); | |
1739 | if (number == NULL) | |
1740 | return STATUS_ALLOCATION_FAILED; | |
1741 | demangle_number_literally (dm, number, 10, 1); | |
1742 | ||
1743 | /* Don't display the vcall offset unless in verbose mode. */ | |
1744 | if (flag_verbose) | |
1745 | { | |
59666b35 | 1746 | status = result_add_string (dm, number); |
74bcd529 | 1747 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1748 | status = result_add_char (dm, ']'); |
74bcd529 DD |
1749 | } |
1750 | dyn_string_delete (number); | |
1751 | RETURN_IF_ERROR (status); | |
1752 | ||
1753 | return STATUS_OK; | |
1754 | } | |
1755 | ||
1756 | /* Demangles and emits a <call-offset>. | |
1757 | ||
1758 | <call-offset> ::= h <nv-offset> _ | |
1759 | ::= v <v-offset> _ */ | |
1760 | ||
1761 | static status_t | |
1762 | demangle_call_offset (dm) | |
1763 | demangling_t dm; | |
1764 | { | |
1765 | DEMANGLE_TRACE ("call-offset", dm); | |
1766 | ||
1767 | switch (peek_char (dm)) | |
1768 | { | |
1769 | case 'h': | |
1770 | advance_char (dm); | |
1771 | /* Demangle the offset. */ | |
1772 | RETURN_IF_ERROR (demangle_nv_offset (dm)); | |
1773 | /* Demangle the separator. */ | |
1774 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1775 | break; | |
1776 | ||
1777 | case 'v': | |
1778 | advance_char (dm); | |
1779 | /* Demangle the offset. */ | |
1780 | RETURN_IF_ERROR (demangle_v_offset (dm)); | |
1781 | /* Demangle the separator. */ | |
1782 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1783 | break; | |
1784 | ||
1785 | default: | |
1786 | return "Unrecognized <call-offset>."; | |
1787 | } | |
1788 | ||
1789 | return STATUS_OK; | |
1790 | } | |
1791 | ||
eb383413 L |
1792 | /* Demangles and emits a <special-name>. |
1793 | ||
1794 | <special-name> ::= GV <object name> # Guard variable | |
eb383413 L |
1795 | ::= TV <type> # virtual table |
1796 | ::= TT <type> # VTT | |
1797 | ::= TI <type> # typeinfo structure | |
1798 | ::= TS <type> # typeinfo name | |
1799 | ||
74bcd529 DD |
1800 | Other relevant productions include thunks: |
1801 | ||
1802 | <special-name> ::= T <call-offset> <base encoding> | |
1803 | # base is the nominal target function of thunk | |
1804 | ||
1805 | <special-name> ::= Tc <call-offset> <call-offset> <base encoding> | |
1806 | # base is the nominal target function of thunk | |
1807 | # first call-offset is 'this' adjustment | |
1808 | # second call-offset is result adjustment | |
1809 | ||
1810 | where | |
1811 | ||
1812 | <call-offset> ::= h <nv-offset> _ | |
1813 | ::= v <v-offset> _ | |
1814 | ||
eb383413 L |
1815 | Also demangles the special g++ manglings, |
1816 | ||
74bcd529 | 1817 | <special-name> ::= TC <type> <offset number> _ <base type> |
eb383413 L |
1818 | # construction vtable |
1819 | ::= TF <type> # typeinfo function (old ABI only) | |
1820 | ::= TJ <type> # java Class structure */ | |
1821 | ||
1822 | static status_t | |
1823 | demangle_special_name (dm) | |
1824 | demangling_t dm; | |
1825 | { | |
1826 | dyn_string_t number; | |
1827 | int unused; | |
1828 | char peek = peek_char (dm); | |
1829 | ||
1830 | DEMANGLE_TRACE ("special-name", dm); | |
1831 | ||
1832 | if (peek == 'G') | |
1833 | { | |
1834 | /* A guard variable name. Consume the G. */ | |
1835 | advance_char (dm); | |
1836 | RETURN_IF_ERROR (demangle_char (dm, 'V')); | |
59666b35 | 1837 | RETURN_IF_ERROR (result_add (dm, "guard variable for ")); |
eb383413 L |
1838 | RETURN_IF_ERROR (demangle_name (dm, &unused)); |
1839 | } | |
1840 | else if (peek == 'T') | |
1841 | { | |
03d5f569 JM |
1842 | status_t status = STATUS_OK; |
1843 | ||
eb383413 L |
1844 | /* Other C++ implementation miscellania. Consume the T. */ |
1845 | advance_char (dm); | |
1846 | ||
1847 | switch (peek_char (dm)) | |
1848 | { | |
1849 | case 'V': | |
1850 | /* Virtual table. */ | |
1851 | advance_char (dm); | |
59666b35 | 1852 | RETURN_IF_ERROR (result_add (dm, "vtable for ")); |
eb383413 L |
1853 | RETURN_IF_ERROR (demangle_type (dm)); |
1854 | break; | |
1855 | ||
1856 | case 'T': | |
1857 | /* VTT structure. */ | |
1858 | advance_char (dm); | |
59666b35 | 1859 | RETURN_IF_ERROR (result_add (dm, "VTT for ")); |
eb383413 L |
1860 | RETURN_IF_ERROR (demangle_type (dm)); |
1861 | break; | |
1862 | ||
1863 | case 'I': | |
1864 | /* Typeinfo structure. */ | |
1865 | advance_char (dm); | |
59666b35 | 1866 | RETURN_IF_ERROR (result_add (dm, "typeinfo for ")); |
eb383413 L |
1867 | RETURN_IF_ERROR (demangle_type (dm)); |
1868 | break; | |
1869 | ||
1870 | case 'F': | |
1871 | /* Typeinfo function. Used only in old ABI with new mangling. */ | |
1872 | advance_char (dm); | |
59666b35 | 1873 | RETURN_IF_ERROR (result_add (dm, "typeinfo fn for ")); |
eb383413 L |
1874 | RETURN_IF_ERROR (demangle_type (dm)); |
1875 | break; | |
1876 | ||
1877 | case 'S': | |
1878 | /* Character string containing type name, used in typeinfo. */ | |
1879 | advance_char (dm); | |
59666b35 | 1880 | RETURN_IF_ERROR (result_add (dm, "typeinfo name for ")); |
eb383413 L |
1881 | RETURN_IF_ERROR (demangle_type (dm)); |
1882 | break; | |
1883 | ||
1884 | case 'J': | |
1885 | /* The java Class variable corresponding to a C++ class. */ | |
1886 | advance_char (dm); | |
59666b35 | 1887 | RETURN_IF_ERROR (result_add (dm, "java Class for ")); |
eb383413 L |
1888 | RETURN_IF_ERROR (demangle_type (dm)); |
1889 | break; | |
1890 | ||
1891 | case 'h': | |
1892 | /* Non-virtual thunk. */ | |
1893 | advance_char (dm); | |
59666b35 | 1894 | RETURN_IF_ERROR (result_add (dm, "non-virtual thunk")); |
74bcd529 | 1895 | RETURN_IF_ERROR (demangle_nv_offset (dm)); |
eb383413 L |
1896 | /* Demangle the separator. */ |
1897 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1898 | /* Demangle and emit the target name and function type. */ | |
59666b35 | 1899 | RETURN_IF_ERROR (result_add (dm, " to ")); |
eb383413 L |
1900 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1901 | break; | |
1902 | ||
1903 | case 'v': | |
1904 | /* Virtual thunk. */ | |
1905 | advance_char (dm); | |
59666b35 | 1906 | RETURN_IF_ERROR (result_add (dm, "virtual thunk")); |
74bcd529 | 1907 | RETURN_IF_ERROR (demangle_v_offset (dm)); |
eb383413 L |
1908 | /* Demangle the separator. */ |
1909 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1910 | /* Demangle and emit the target function. */ | |
59666b35 | 1911 | RETURN_IF_ERROR (result_add (dm, " to ")); |
74bcd529 DD |
1912 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1913 | break; | |
1914 | ||
1915 | case 'c': | |
1916 | /* Covariant return thunk. */ | |
1917 | advance_char (dm); | |
59666b35 | 1918 | RETURN_IF_ERROR (result_add (dm, "covariant return thunk")); |
74bcd529 DD |
1919 | RETURN_IF_ERROR (demangle_call_offset (dm)); |
1920 | RETURN_IF_ERROR (demangle_call_offset (dm)); | |
1921 | /* Demangle and emit the target function. */ | |
59666b35 | 1922 | RETURN_IF_ERROR (result_add (dm, " to ")); |
eb383413 L |
1923 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1924 | break; | |
1925 | ||
1926 | case 'C': | |
1927 | /* TC is a special g++ mangling for a construction vtable. */ | |
1928 | if (!flag_strict) | |
1929 | { | |
03d5f569 JM |
1930 | dyn_string_t derived_type; |
1931 | ||
eb383413 | 1932 | advance_char (dm); |
59666b35 | 1933 | RETURN_IF_ERROR (result_add (dm, "construction vtable for ")); |
03d5f569 JM |
1934 | |
1935 | /* Demangle the derived type off to the side. */ | |
1936 | RETURN_IF_ERROR (result_push (dm)); | |
eb383413 | 1937 | RETURN_IF_ERROR (demangle_type (dm)); |
03d5f569 JM |
1938 | derived_type = (dyn_string_t) result_pop (dm); |
1939 | ||
eb383413 L |
1940 | /* Demangle the offset. */ |
1941 | number = dyn_string_new (4); | |
03d5f569 JM |
1942 | if (number == NULL) |
1943 | { | |
1944 | dyn_string_delete (derived_type); | |
1945 | return STATUS_ALLOCATION_FAILED; | |
1946 | } | |
eb383413 L |
1947 | demangle_number_literally (dm, number, 10, 1); |
1948 | /* Demangle the underscore separator. */ | |
03d5f569 JM |
1949 | status = demangle_char (dm, '_'); |
1950 | ||
eb383413 | 1951 | /* Demangle the base type. */ |
03d5f569 JM |
1952 | if (STATUS_NO_ERROR (status)) |
1953 | status = demangle_type (dm); | |
1954 | ||
1955 | /* Emit the derived type. */ | |
1956 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 1957 | status = result_add (dm, "-in-"); |
03d5f569 | 1958 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1959 | status = result_add_string (dm, derived_type); |
03d5f569 JM |
1960 | dyn_string_delete (derived_type); |
1961 | ||
eb383413 L |
1962 | /* Don't display the offset unless in verbose mode. */ |
1963 | if (flag_verbose) | |
1964 | { | |
59666b35 | 1965 | status = result_add_char (dm, ' '); |
03d5f569 | 1966 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1967 | result_add_string (dm, number); |
eb383413 L |
1968 | } |
1969 | dyn_string_delete (number); | |
03d5f569 | 1970 | RETURN_IF_ERROR (status); |
eb383413 L |
1971 | break; |
1972 | } | |
1973 | /* If flag_strict, fall through. */ | |
1974 | ||
1975 | default: | |
1976 | return "Unrecognized <special-name>."; | |
1977 | } | |
1978 | } | |
1979 | else | |
1980 | return STATUS_ERROR; | |
1981 | ||
1982 | return STATUS_OK; | |
1983 | } | |
1984 | ||
1985 | /* Demangles and emits a <ctor-dtor-name>. | |
1986 | ||
1987 | <ctor-dtor-name> | |
1988 | ::= C1 # complete object (in-charge) ctor | |
1989 | ::= C2 # base object (not-in-charge) ctor | |
1990 | ::= C3 # complete object (in-charge) allocating ctor | |
eb383413 L |
1991 | ::= D0 # deleting (in-charge) dtor |
1992 | ::= D1 # complete object (in-charge) dtor | |
1993 | ::= D2 # base object (not-in-charge) dtor */ | |
1994 | ||
1995 | static status_t | |
1996 | demangle_ctor_dtor_name (dm) | |
1997 | demangling_t dm; | |
1998 | { | |
1999 | static const char *const ctor_flavors[] = | |
2000 | { | |
2001 | "in-charge", | |
2002 | "not-in-charge", | |
74bcd529 | 2003 | "allocating" |
eb383413 L |
2004 | }; |
2005 | static const char *const dtor_flavors[] = | |
2006 | { | |
2007 | "in-charge deleting", | |
2008 | "in-charge", | |
2009 | "not-in-charge" | |
2010 | }; | |
2011 | ||
2012 | int flavor; | |
2013 | char peek = peek_char (dm); | |
2014 | ||
2015 | DEMANGLE_TRACE ("ctor-dtor-name", dm); | |
2016 | ||
2017 | if (peek == 'C') | |
2018 | { | |
2019 | /* A constructor name. Consume the C. */ | |
2020 | advance_char (dm); | |
74bcd529 | 2021 | if (peek_char (dm) < '1' || peek_char (dm) > '3') |
eb383413 | 2022 | return "Unrecognized constructor."; |
59666b35 | 2023 | RETURN_IF_ERROR (result_add_string (dm, dm->last_source_name)); |
eb383413 L |
2024 | /* Print the flavor of the constructor if in verbose mode. */ |
2025 | flavor = next_char (dm) - '1'; | |
2026 | if (flag_verbose) | |
2027 | { | |
59666b35 DD |
2028 | RETURN_IF_ERROR (result_add (dm, "[")); |
2029 | RETURN_IF_ERROR (result_add (dm, ctor_flavors[flavor])); | |
2030 | RETURN_IF_ERROR (result_add_char (dm, ']')); | |
eb383413 L |
2031 | } |
2032 | } | |
2033 | else if (peek == 'D') | |
2034 | { | |
2035 | /* A destructor name. Consume the D. */ | |
2036 | advance_char (dm); | |
2037 | if (peek_char (dm) < '0' || peek_char (dm) > '2') | |
2038 | return "Unrecognized destructor."; | |
59666b35 DD |
2039 | RETURN_IF_ERROR (result_add_char (dm, '~')); |
2040 | RETURN_IF_ERROR (result_add_string (dm, dm->last_source_name)); | |
eb383413 L |
2041 | /* Print the flavor of the destructor if in verbose mode. */ |
2042 | flavor = next_char (dm) - '0'; | |
2043 | if (flag_verbose) | |
2044 | { | |
59666b35 DD |
2045 | RETURN_IF_ERROR (result_add (dm, " [")); |
2046 | RETURN_IF_ERROR (result_add (dm, dtor_flavors[flavor])); | |
2047 | RETURN_IF_ERROR (result_add_char (dm, ']')); | |
eb383413 L |
2048 | } |
2049 | } | |
2050 | else | |
2051 | return STATUS_ERROR; | |
2052 | ||
2053 | return STATUS_OK; | |
2054 | } | |
2055 | ||
2056 | /* Handle pointer, reference, and pointer-to-member cases for | |
2057 | demangle_type. All consecutive `P's, `R's, and 'M's are joined to | |
2058 | build a pointer/reference type. We snarf all these, plus the | |
2059 | following <type>, all at once since we need to know whether we have | |
2060 | a pointer to data or pointer to function to construct the right | |
2061 | output syntax. C++'s pointer syntax is hairy. | |
2062 | ||
74bcd529 DD |
2063 | This function adds substitution candidates for every nested |
2064 | pointer/reference type it processes, including the outermost, final | |
2065 | type, assuming the substitution starts at SUBSTITUTION_START in the | |
2066 | demangling result. For example, if this function demangles | |
2067 | `PP3Foo', it will add a substitution for `Foo', `Foo*', and | |
2068 | `Foo**', in that order. | |
2069 | ||
2070 | *INSERT_POS is a quantity used internally, when this function calls | |
2071 | itself recursively, to figure out where to insert pointer | |
2072 | punctuation on the way up. On entry to this function, INSERT_POS | |
2073 | should point to a temporary value, but that value need not be | |
2074 | initialized. | |
2075 | ||
eb383413 L |
2076 | <type> ::= P <type> |
2077 | ::= R <type> | |
2078 | ::= <pointer-to-member-type> | |
2079 | ||
2080 | <pointer-to-member-type> ::= M </class/ type> </member/ type> */ | |
2081 | ||
2082 | static status_t | |
74bcd529 | 2083 | demangle_type_ptr (dm, insert_pos, substitution_start) |
eb383413 | 2084 | demangling_t dm; |
74bcd529 DD |
2085 | int *insert_pos; |
2086 | int substitution_start; | |
eb383413 | 2087 | { |
eb383413 | 2088 | status_t status; |
74bcd529 | 2089 | int is_substitution_candidate = 1; |
eb383413 L |
2090 | |
2091 | DEMANGLE_TRACE ("type*", dm); | |
2092 | ||
2093 | /* Scan forward, collecting pointers and references into symbols, | |
2094 | until we hit something else. Then emit the type. */ | |
59666b35 | 2095 | switch (peek_char (dm)) |
eb383413 | 2096 | { |
59666b35 | 2097 | case 'P': |
74bcd529 DD |
2098 | /* A pointer. Snarf the `P'. */ |
2099 | advance_char (dm); | |
2100 | /* Demangle the underlying type. */ | |
2101 | RETURN_IF_ERROR (demangle_type_ptr (dm, insert_pos, | |
2102 | substitution_start)); | |
2103 | /* Insert an asterisk where we're told to; it doesn't | |
bc9bf259 DD |
2104 | necessarily go at the end. If we're doing Java style output, |
2105 | there is no pointer symbol. */ | |
2106 | if (dm->style != DMGL_JAVA) | |
2107 | RETURN_IF_ERROR (result_insert_char (dm, *insert_pos, '*')); | |
74bcd529 DD |
2108 | /* The next (outermost) pointer or reference character should go |
2109 | after this one. */ | |
2110 | ++(*insert_pos); | |
59666b35 DD |
2111 | break; |
2112 | ||
2113 | case 'R': | |
74bcd529 DD |
2114 | /* A reference. Snarf the `R'. */ |
2115 | advance_char (dm); | |
2116 | /* Demangle the underlying type. */ | |
2117 | RETURN_IF_ERROR (demangle_type_ptr (dm, insert_pos, | |
2118 | substitution_start)); | |
2119 | /* Insert an ampersand where we're told to; it doesn't | |
2120 | necessarily go at the end. */ | |
2121 | RETURN_IF_ERROR (result_insert_char (dm, *insert_pos, '&')); | |
2122 | /* The next (outermost) pointer or reference character should go | |
2123 | after this one. */ | |
2124 | ++(*insert_pos); | |
59666b35 DD |
2125 | break; |
2126 | ||
2127 | case 'M': | |
74bcd529 DD |
2128 | { |
2129 | /* A pointer-to-member. */ | |
2130 | dyn_string_t class_type; | |
2131 | ||
2132 | /* Eat the 'M'. */ | |
2133 | advance_char (dm); | |
2134 | ||
2135 | /* Capture the type of which this is a pointer-to-member. */ | |
2136 | RETURN_IF_ERROR (result_push (dm)); | |
2137 | RETURN_IF_ERROR (demangle_type (dm)); | |
2138 | class_type = (dyn_string_t) result_pop (dm); | |
2139 | ||
2140 | if (peek_char (dm) == 'F') | |
2141 | /* A pointer-to-member function. We want output along the | |
2142 | lines of `void (C::*) (int, int)'. Demangle the function | |
2143 | type, which would in this case give `void () (int, int)' | |
2144 | and set *insert_pos to the spot between the first | |
2145 | parentheses. */ | |
2146 | status = demangle_type_ptr (dm, insert_pos, substitution_start); | |
59666b35 DD |
2147 | else if (peek_char (dm) == 'A') |
2148 | /* A pointer-to-member array variable. We want output that | |
2149 | looks like `int (Klass::*) [10]'. Demangle the array type | |
2150 | as `int () [10]', and set *insert_pos to the spot between | |
2151 | the parentheses. */ | |
2152 | status = demangle_array_type (dm, insert_pos); | |
74bcd529 DD |
2153 | else |
2154 | { | |
2155 | /* A pointer-to-member variable. Demangle the type of the | |
2156 | pointed-to member. */ | |
eb383413 L |
2157 | status = demangle_type (dm); |
2158 | /* Make it pretty. */ | |
59666b35 DD |
2159 | if (STATUS_NO_ERROR (status) |
2160 | && !result_previous_char_is_space (dm)) | |
2161 | status = result_add_char (dm, ' '); | |
74bcd529 DD |
2162 | /* The pointer-to-member notation (e.g. `C::*') follows the |
2163 | member's type. */ | |
59666b35 | 2164 | *insert_pos = result_caret_pos (dm); |
eb383413 | 2165 | } |
eb383413 | 2166 | |
74bcd529 DD |
2167 | /* Build the pointer-to-member notation. */ |
2168 | if (STATUS_NO_ERROR (status)) | |
2169 | status = result_insert (dm, *insert_pos, "::*"); | |
2170 | if (STATUS_NO_ERROR (status)) | |
2171 | status = result_insert_string (dm, *insert_pos, class_type); | |
2172 | /* There may be additional levels of (pointer or reference) | |
2173 | indirection in this type. If so, the `*' and `&' should be | |
2174 | added after the pointer-to-member notation (e.g. `C::*&' for | |
2175 | a reference to a pointer-to-member of class C). */ | |
2176 | *insert_pos += dyn_string_length (class_type) + 3; | |
eb383413 | 2177 | |
74bcd529 DD |
2178 | /* Clean up. */ |
2179 | dyn_string_delete (class_type); | |
eb383413 | 2180 | |
74bcd529 | 2181 | RETURN_IF_ERROR (status); |
eb383413 | 2182 | } |
59666b35 DD |
2183 | break; |
2184 | ||
2185 | case 'F': | |
74bcd529 DD |
2186 | /* Ooh, tricky, a pointer-to-function. When we demangle the |
2187 | function type, the return type should go at the very | |
2188 | beginning. */ | |
59666b35 | 2189 | *insert_pos = result_caret_pos (dm); |
74bcd529 DD |
2190 | /* The parentheses indicate this is a function pointer or |
2191 | reference type. */ | |
59666b35 | 2192 | RETURN_IF_ERROR (result_add (dm, "()")); |
74bcd529 DD |
2193 | /* Now demangle the function type. The return type will be |
2194 | inserted before the `()', and the argument list will go after | |
2195 | it. */ | |
2196 | RETURN_IF_ERROR (demangle_function_type (dm, insert_pos)); | |
2197 | /* We should now have something along the lines of | |
2198 | `void () (int, int)'. The pointer or reference characters | |
2199 | have to inside the first set of parentheses. *insert_pos has | |
2200 | already been updated to point past the end of the return | |
2201 | type. Move it one character over so it points inside the | |
2202 | `()'. */ | |
2203 | ++(*insert_pos); | |
59666b35 DD |
2204 | break; |
2205 | ||
2206 | case 'A': | |
2207 | /* An array pointer or reference. demangle_array_type will figure | |
2208 | out where the asterisks and ampersands go. */ | |
2209 | RETURN_IF_ERROR (demangle_array_type (dm, insert_pos)); | |
2210 | break; | |
2211 | ||
2212 | default: | |
74bcd529 DD |
2213 | /* No more pointer or reference tokens; this is therefore a |
2214 | pointer to data. Finish up by demangling the underlying | |
2215 | type. */ | |
2216 | RETURN_IF_ERROR (demangle_type (dm)); | |
2217 | /* The pointer or reference characters follow the underlying | |
2218 | type, as in `int*&'. */ | |
59666b35 | 2219 | *insert_pos = result_caret_pos (dm); |
74bcd529 DD |
2220 | /* Because of the production <type> ::= <substitution>, |
2221 | demangle_type will already have added the underlying type as | |
2222 | a substitution candidate. Don't do it again. */ | |
2223 | is_substitution_candidate = 0; | |
59666b35 | 2224 | break; |
74bcd529 DD |
2225 | } |
2226 | ||
2227 | if (is_substitution_candidate) | |
2228 | RETURN_IF_ERROR (substitution_add (dm, substitution_start, 0)); | |
2229 | ||
2230 | return STATUS_OK; | |
eb383413 L |
2231 | } |
2232 | ||
2233 | /* Demangles and emits a <type>. | |
2234 | ||
2235 | <type> ::= <builtin-type> | |
2236 | ::= <function-type> | |
2237 | ::= <class-enum-type> | |
2238 | ::= <array-type> | |
2239 | ::= <pointer-to-member-type> | |
2240 | ::= <template-param> | |
74bcd529 | 2241 | ::= <template-template-param> <template-args> |
eb383413 L |
2242 | ::= <CV-qualifiers> <type> |
2243 | ::= P <type> # pointer-to | |
2244 | ::= R <type> # reference-to | |
2245 | ::= C <type> # complex pair (C 2000) | |
2246 | ::= G <type> # imaginary (C 2000) | |
2247 | ::= U <source-name> <type> # vendor extended type qualifier | |
2248 | ::= <substitution> */ | |
2249 | ||
2250 | static status_t | |
2251 | demangle_type (dm) | |
2252 | demangling_t dm; | |
2253 | { | |
2254 | int start = substitution_start (dm); | |
2255 | char peek = peek_char (dm); | |
03d5f569 | 2256 | char peek_next; |
74bcd529 | 2257 | int encode_return_type = 0; |
eb383413 | 2258 | template_arg_list_t old_arg_list = current_template_arg_list (dm); |
74bcd529 DD |
2259 | int insert_pos; |
2260 | ||
2261 | /* A <type> can be a <substitution>; therefore, this <type> is a | |
2262 | substitution candidate unless a special condition holds (see | |
2263 | below). */ | |
2264 | int is_substitution_candidate = 1; | |
eb383413 L |
2265 | |
2266 | DEMANGLE_TRACE ("type", dm); | |
2267 | ||
2268 | /* A <class-enum-type> can start with a digit (a <source-name>), an | |
2269 | N (a <nested-name>), or a Z (a <local-name>). */ | |
03d5f569 | 2270 | if (IS_DIGIT ((unsigned char) peek) || peek == 'N' || peek == 'Z') |
74bcd529 DD |
2271 | RETURN_IF_ERROR (demangle_class_enum_type (dm, &encode_return_type)); |
2272 | /* Lower-case letters begin <builtin-type>s, except for `r', which | |
2273 | denotes restrict. */ | |
2274 | else if (peek >= 'a' && peek <= 'z' && peek != 'r') | |
eb383413 L |
2275 | { |
2276 | RETURN_IF_ERROR (demangle_builtin_type (dm)); | |
74bcd529 DD |
2277 | /* Built-in types are not substitution candidates. */ |
2278 | is_substitution_candidate = 0; | |
eb383413 L |
2279 | } |
2280 | else | |
2281 | switch (peek) | |
2282 | { | |
2283 | case 'r': | |
2284 | case 'V': | |
2285 | case 'K': | |
74bcd529 DD |
2286 | /* CV-qualifiers (including restrict). We have to demangle |
2287 | them off to the side, since C++ syntax puts them in a funny | |
2288 | place for qualified pointer and reference types. */ | |
eb383413 L |
2289 | { |
2290 | status_t status; | |
2291 | dyn_string_t cv_qualifiers = dyn_string_new (24); | |
59666b35 | 2292 | int old_caret_position = result_get_caret (dm); |
03d5f569 JM |
2293 | |
2294 | if (cv_qualifiers == NULL) | |
2295 | return STATUS_ALLOCATION_FAILED; | |
2296 | ||
59666b35 | 2297 | /* Decode all adjacent CV qualifiers. */ |
eb383413 | 2298 | demangle_CV_qualifiers (dm, cv_qualifiers); |
59666b35 DD |
2299 | /* Emit them, and shift the caret left so that the |
2300 | underlying type will be emitted before the qualifiers. */ | |
2301 | status = result_add_string (dm, cv_qualifiers); | |
2302 | result_shift_caret (dm, -dyn_string_length (cv_qualifiers)); | |
2303 | /* Clean up. */ | |
eb383413 L |
2304 | dyn_string_delete (cv_qualifiers); |
2305 | RETURN_IF_ERROR (status); | |
59666b35 DD |
2306 | /* Also prepend a blank, if needed. */ |
2307 | RETURN_IF_ERROR (result_add_char (dm, ' ')); | |
2308 | result_shift_caret (dm, -1); | |
2309 | ||
2310 | /* Demangle the underlying type. It will be emitted before | |
2311 | the CV qualifiers, since we moved the caret. */ | |
2312 | RETURN_IF_ERROR (demangle_type (dm)); | |
2313 | ||
2314 | /* Put the caret back where it was previously. */ | |
2315 | result_set_caret (dm, old_caret_position); | |
eb383413 L |
2316 | } |
2317 | break; | |
2318 | ||
2319 | case 'F': | |
2320 | return "Non-pointer or -reference function type."; | |
2321 | ||
2322 | case 'A': | |
59666b35 | 2323 | RETURN_IF_ERROR (demangle_array_type (dm, NULL)); |
eb383413 L |
2324 | break; |
2325 | ||
2326 | case 'T': | |
74bcd529 DD |
2327 | /* It's either a <template-param> or a |
2328 | <template-template-param>. In either case, demangle the | |
2329 | `T' token first. */ | |
2330 | RETURN_IF_ERROR (demangle_template_param (dm)); | |
2331 | ||
2332 | /* Check for a template argument list; if one is found, it's a | |
2333 | <template-template-param> ::= <template-param> | |
2334 | ::= <substitution> */ | |
2335 | if (peek_char (dm) == 'I') | |
2336 | { | |
2337 | /* Add a substitution candidate. The template parameter | |
2338 | `T' token is a substitution candidate by itself, | |
2339 | without the template argument list. */ | |
2340 | RETURN_IF_ERROR (substitution_add (dm, start, encode_return_type)); | |
2341 | ||
2342 | /* Now demangle the template argument list. */ | |
2343 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
2344 | /* The entire type, including the template template | |
2345 | parameter and its argument list, will be added as a | |
2346 | substitution candidate below. */ | |
2347 | } | |
2348 | ||
eb383413 L |
2349 | break; |
2350 | ||
2351 | case 'S': | |
03d5f569 JM |
2352 | /* First check if this is a special substitution. If it is, |
2353 | this is a <class-enum-type>. Special substitutions have a | |
2354 | letter following the `S'; other substitutions have a digit | |
2355 | or underscore. */ | |
2356 | peek_next = peek_char_next (dm); | |
2357 | if (IS_DIGIT (peek_next) || peek_next == '_') | |
74bcd529 DD |
2358 | { |
2359 | RETURN_IF_ERROR (demangle_substitution (dm, &encode_return_type)); | |
2360 | ||
2361 | /* The substituted name may have been a template name. | |
2362 | Check if template arguments follow, and if so, demangle | |
2363 | them. */ | |
2364 | if (peek_char (dm) == 'I') | |
2365 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
2366 | else | |
2367 | /* A substitution token is not itself a substitution | |
2368 | candidate. (However, if the substituted template is | |
2369 | instantiated, the resulting type is.) */ | |
2370 | is_substitution_candidate = 0; | |
2371 | } | |
03d5f569 | 2372 | else |
74bcd529 DD |
2373 | { |
2374 | /* Now some trickiness. We have a special substitution | |
2375 | here. Often, the special substitution provides the | |
2376 | name of a template that's subsequently instantiated, | |
2377 | for instance `SaIcE' => std::allocator<char>. In these | |
2378 | cases we need to add a substitution candidate for the | |
2379 | entire <class-enum-type> and thus don't want to clear | |
2380 | the is_substitution_candidate flag. | |
2381 | ||
2382 | However, it's possible that what we have here is a | |
2383 | substitution token representing an entire type, such as | |
2384 | `Ss' => std::string. In this case, we mustn't add a | |
2385 | new substitution candidate for this substitution token. | |
2386 | To detect this case, remember where the start of the | |
2387 | substitution token is. */ | |
2388 | const char *next = dm->next; | |
2389 | /* Now demangle the <class-enum-type>. */ | |
2390 | RETURN_IF_ERROR | |
2391 | (demangle_class_enum_type (dm, &encode_return_type)); | |
2392 | /* If all that was just demangled is the two-character | |
2393 | special substitution token, supress the addition of a | |
2394 | new candidate for it. */ | |
2395 | if (dm->next == next + 2) | |
2396 | is_substitution_candidate = 0; | |
2397 | } | |
2398 | ||
eb383413 L |
2399 | break; |
2400 | ||
2401 | case 'P': | |
2402 | case 'R': | |
2403 | case 'M': | |
74bcd529 DD |
2404 | RETURN_IF_ERROR (demangle_type_ptr (dm, &insert_pos, start)); |
2405 | /* demangle_type_ptr adds all applicable substitution | |
2406 | candidates. */ | |
2407 | is_substitution_candidate = 0; | |
eb383413 L |
2408 | break; |
2409 | ||
2410 | case 'C': | |
2411 | /* A C99 complex type. */ | |
59666b35 | 2412 | RETURN_IF_ERROR (result_add (dm, "complex ")); |
eb383413 L |
2413 | advance_char (dm); |
2414 | RETURN_IF_ERROR (demangle_type (dm)); | |
2415 | break; | |
2416 | ||
2417 | case 'G': | |
2418 | /* A C99 imaginary type. */ | |
59666b35 | 2419 | RETURN_IF_ERROR (result_add (dm, "imaginary ")); |
eb383413 L |
2420 | advance_char (dm); |
2421 | RETURN_IF_ERROR (demangle_type (dm)); | |
2422 | break; | |
2423 | ||
2424 | case 'U': | |
74bcd529 | 2425 | /* Vendor-extended type qualifier. */ |
eb383413 L |
2426 | advance_char (dm); |
2427 | RETURN_IF_ERROR (demangle_source_name (dm)); | |
59666b35 | 2428 | RETURN_IF_ERROR (result_add_char (dm, ' ')); |
eb383413 L |
2429 | RETURN_IF_ERROR (demangle_type (dm)); |
2430 | break; | |
2431 | ||
2432 | default: | |
2433 | return "Unexpected character in <type>."; | |
2434 | } | |
2435 | ||
74bcd529 | 2436 | if (is_substitution_candidate) |
eb383413 L |
2437 | /* Add a new substitution for the type. If this type was a |
2438 | <template-param>, pass its index since from the point of | |
74bcd529 | 2439 | substitutions; a <template-param> token is a substitution |
eb383413 | 2440 | candidate distinct from the type that is substituted for it. */ |
74bcd529 | 2441 | RETURN_IF_ERROR (substitution_add (dm, start, encode_return_type)); |
eb383413 L |
2442 | |
2443 | /* Pop off template argument lists added during mangling of this | |
2444 | type. */ | |
2445 | pop_to_template_arg_list (dm, old_arg_list); | |
2446 | ||
2447 | return STATUS_OK; | |
2448 | } | |
2449 | ||
2450 | /* C++ source names of builtin types, indexed by the mangled code | |
2451 | letter's position in the alphabet ('a' -> 0, 'b' -> 1, etc). */ | |
2452 | static const char *const builtin_type_names[26] = | |
2453 | { | |
2454 | "signed char", /* a */ | |
2455 | "bool", /* b */ | |
2456 | "char", /* c */ | |
2457 | "double", /* d */ | |
2458 | "long double", /* e */ | |
2459 | "float", /* f */ | |
2460 | "__float128", /* g */ | |
2461 | "unsigned char", /* h */ | |
2462 | "int", /* i */ | |
2463 | "unsigned", /* j */ | |
2464 | NULL, /* k */ | |
2465 | "long", /* l */ | |
2466 | "unsigned long", /* m */ | |
2467 | "__int128", /* n */ | |
2468 | "unsigned __int128", /* o */ | |
2469 | NULL, /* p */ | |
2470 | NULL, /* q */ | |
2471 | NULL, /* r */ | |
2472 | "short", /* s */ | |
2473 | "unsigned short", /* t */ | |
2474 | NULL, /* u */ | |
2475 | "void", /* v */ | |
2476 | "wchar_t", /* w */ | |
2477 | "long long", /* x */ | |
2478 | "unsigned long long", /* y */ | |
2479 | "..." /* z */ | |
2480 | }; | |
2481 | ||
bc9bf259 DD |
2482 | /* Java source names of builtin types. Types that arn't valid in Java |
2483 | are also included here - we don't fail if someone attempts to demangle a | |
2484 | C++ symbol in Java style. */ | |
2485 | static const char *const java_builtin_type_names[26] = | |
2486 | { | |
2487 | "signed char", /* a */ | |
2488 | "boolean", /* C++ "bool" */ /* b */ | |
2489 | "byte", /* C++ "char" */ /* c */ | |
2490 | "double", /* d */ | |
2491 | "long double", /* e */ | |
2492 | "float", /* f */ | |
2493 | "__float128", /* g */ | |
2494 | "unsigned char", /* h */ | |
2495 | "int", /* i */ | |
2496 | "unsigned", /* j */ | |
2497 | NULL, /* k */ | |
2498 | "long", /* l */ | |
2499 | "unsigned long", /* m */ | |
2500 | "__int128", /* n */ | |
2501 | "unsigned __int128", /* o */ | |
2502 | NULL, /* p */ | |
2503 | NULL, /* q */ | |
2504 | NULL, /* r */ | |
2505 | "short", /* s */ | |
2506 | "unsigned short", /* t */ | |
2507 | NULL, /* u */ | |
2508 | "void", /* v */ | |
2509 | "char", /* C++ "wchar_t" */ /* w */ | |
2510 | "long", /* C++ "long long" */ /* x */ | |
2511 | "unsigned long long", /* y */ | |
2512 | "..." /* z */ | |
2513 | }; | |
2514 | ||
eb383413 L |
2515 | /* Demangles and emits a <builtin-type>. |
2516 | ||
2517 | <builtin-type> ::= v # void | |
2518 | ::= w # wchar_t | |
2519 | ::= b # bool | |
2520 | ::= c # char | |
2521 | ::= a # signed char | |
2522 | ::= h # unsigned char | |
2523 | ::= s # short | |
2524 | ::= t # unsigned short | |
2525 | ::= i # int | |
2526 | ::= j # unsigned int | |
2527 | ::= l # long | |
2528 | ::= m # unsigned long | |
2529 | ::= x # long long, __int64 | |
2530 | ::= y # unsigned long long, __int64 | |
2531 | ::= n # __int128 | |
2532 | ::= o # unsigned __int128 | |
2533 | ::= f # float | |
2534 | ::= d # double | |
2535 | ::= e # long double, __float80 | |
2536 | ::= g # __float128 | |
2537 | ::= z # ellipsis | |
2538 | ::= u <source-name> # vendor extended type */ | |
2539 | ||
2540 | static status_t | |
2541 | demangle_builtin_type (dm) | |
2542 | demangling_t dm; | |
2543 | { | |
2544 | ||
2545 | char code = peek_char (dm); | |
2546 | ||
2547 | DEMANGLE_TRACE ("builtin-type", dm); | |
2548 | ||
2549 | if (code == 'u') | |
2550 | { | |
2551 | advance_char (dm); | |
2552 | RETURN_IF_ERROR (demangle_source_name (dm)); | |
2553 | return STATUS_OK; | |
2554 | } | |
2555 | else if (code >= 'a' && code <= 'z') | |
2556 | { | |
bc9bf259 DD |
2557 | const char *type_name; |
2558 | /* Java uses different names for some built-in types. */ | |
2559 | if (dm->style == DMGL_JAVA) | |
2560 | type_name = java_builtin_type_names[code - 'a']; | |
2561 | else | |
2562 | type_name = builtin_type_names[code - 'a']; | |
eb383413 L |
2563 | if (type_name == NULL) |
2564 | return "Unrecognized <builtin-type> code."; | |
2565 | ||
59666b35 | 2566 | RETURN_IF_ERROR (result_add (dm, type_name)); |
eb383413 L |
2567 | advance_char (dm); |
2568 | return STATUS_OK; | |
2569 | } | |
2570 | else | |
2571 | return "Non-alphabetic <builtin-type> code."; | |
2572 | } | |
2573 | ||
2574 | /* Demangles all consecutive CV-qualifiers (const, volatile, and | |
2575 | restrict) at the current position. The qualifiers are appended to | |
2576 | QUALIFIERS. Returns STATUS_OK. */ | |
2577 | ||
2578 | static status_t | |
2579 | demangle_CV_qualifiers (dm, qualifiers) | |
2580 | demangling_t dm; | |
2581 | dyn_string_t qualifiers; | |
2582 | { | |
2583 | DEMANGLE_TRACE ("CV-qualifiers", dm); | |
2584 | ||
2585 | while (1) | |
2586 | { | |
2587 | switch (peek_char (dm)) | |
2588 | { | |
2589 | case 'r': | |
03d5f569 JM |
2590 | if (!dyn_string_append_space (qualifiers)) |
2591 | return STATUS_ALLOCATION_FAILED; | |
2592 | if (!dyn_string_append_cstr (qualifiers, "restrict")) | |
2593 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
2594 | break; |
2595 | ||
2596 | case 'V': | |
03d5f569 JM |
2597 | if (!dyn_string_append_space (qualifiers)) |
2598 | return STATUS_ALLOCATION_FAILED; | |
2599 | if (!dyn_string_append_cstr (qualifiers, "volatile")) | |
2600 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
2601 | break; |
2602 | ||
2603 | case 'K': | |
03d5f569 JM |
2604 | if (!dyn_string_append_space (qualifiers)) |
2605 | return STATUS_ALLOCATION_FAILED; | |
2606 | if (!dyn_string_append_cstr (qualifiers, "const")) | |
2607 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
2608 | break; |
2609 | ||
2610 | default: | |
2611 | return STATUS_OK; | |
2612 | } | |
2613 | ||
2614 | advance_char (dm); | |
2615 | } | |
2616 | } | |
2617 | ||
74bcd529 | 2618 | /* Demangles and emits a <function-type>. *FUNCTION_NAME_POS is the |
eb383413 | 2619 | position in the result string of the start of the function |
74bcd529 DD |
2620 | identifier, at which the function's return type will be inserted; |
2621 | *FUNCTION_NAME_POS is updated to position past the end of the | |
2622 | function's return type. | |
eb383413 L |
2623 | |
2624 | <function-type> ::= F [Y] <bare-function-type> E */ | |
2625 | ||
2626 | static status_t | |
2627 | demangle_function_type (dm, function_name_pos) | |
2628 | demangling_t dm; | |
74bcd529 | 2629 | int *function_name_pos; |
eb383413 L |
2630 | { |
2631 | DEMANGLE_TRACE ("function-type", dm); | |
2632 | RETURN_IF_ERROR (demangle_char (dm, 'F')); | |
2633 | if (peek_char (dm) == 'Y') | |
2634 | { | |
2635 | /* Indicate this function has C linkage if in verbose mode. */ | |
2636 | if (flag_verbose) | |
59666b35 | 2637 | RETURN_IF_ERROR (result_add (dm, " [extern \"C\"] ")); |
eb383413 L |
2638 | advance_char (dm); |
2639 | } | |
2640 | RETURN_IF_ERROR (demangle_bare_function_type (dm, function_name_pos)); | |
2641 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
2642 | return STATUS_OK; | |
2643 | } | |
2644 | ||
2645 | /* Demangles and emits a <bare-function-type>. RETURN_TYPE_POS is the | |
2646 | position in the result string at which the function return type | |
2647 | should be inserted. If RETURN_TYPE_POS is BFT_NO_RETURN_TYPE, the | |
2648 | function's return type is assumed not to be encoded. | |
2649 | ||
2650 | <bare-function-type> ::= <signature type>+ */ | |
2651 | ||
2652 | static status_t | |
2653 | demangle_bare_function_type (dm, return_type_pos) | |
2654 | demangling_t dm; | |
74bcd529 | 2655 | int *return_type_pos; |
eb383413 L |
2656 | { |
2657 | /* Sequence is the index of the current function parameter, counting | |
2658 | from zero. The value -1 denotes the return type. */ | |
2659 | int sequence = | |
2660 | (return_type_pos == BFT_NO_RETURN_TYPE ? 0 : -1); | |
2661 | ||
2662 | DEMANGLE_TRACE ("bare-function-type", dm); | |
2663 | ||
59666b35 | 2664 | RETURN_IF_ERROR (result_add_char (dm, '(')); |
eb383413 L |
2665 | while (!end_of_name_p (dm) && peek_char (dm) != 'E') |
2666 | { | |
2667 | if (sequence == -1) | |
2668 | /* We're decoding the function's return type. */ | |
2669 | { | |
2670 | dyn_string_t return_type; | |
03d5f569 | 2671 | status_t status = STATUS_OK; |
eb383413 L |
2672 | |
2673 | /* Decode the return type off to the side. */ | |
03d5f569 | 2674 | RETURN_IF_ERROR (result_push (dm)); |
eb383413 L |
2675 | RETURN_IF_ERROR (demangle_type (dm)); |
2676 | return_type = (dyn_string_t) result_pop (dm); | |
2677 | ||
03d5f569 JM |
2678 | /* Add a space to the end of the type. Insert the return |
2679 | type where we've been asked to. */ | |
74bcd529 | 2680 | if (!dyn_string_append_space (return_type)) |
03d5f569 | 2681 | status = STATUS_ALLOCATION_FAILED; |
74bcd529 DD |
2682 | if (STATUS_NO_ERROR (status)) |
2683 | { | |
2684 | if (!dyn_string_insert (result_string (dm), *return_type_pos, | |
2685 | return_type)) | |
2686 | status = STATUS_ALLOCATION_FAILED; | |
2687 | else | |
2688 | *return_type_pos += dyn_string_length (return_type); | |
2689 | } | |
eb383413 | 2690 | |
eb383413 | 2691 | dyn_string_delete (return_type); |
03d5f569 | 2692 | RETURN_IF_ERROR (status); |
eb383413 L |
2693 | } |
2694 | else | |
2695 | { | |
2696 | /* Skip `void' parameter types. One should only occur as | |
2697 | the only type in a parameter list; in that case, we want | |
2698 | to print `foo ()' instead of `foo (void)'. */ | |
2699 | if (peek_char (dm) == 'v') | |
74bcd529 DD |
2700 | /* Consume the v. */ |
2701 | advance_char (dm); | |
2702 | else | |
eb383413 | 2703 | { |
74bcd529 DD |
2704 | /* Separate parameter types by commas. */ |
2705 | if (sequence > 0) | |
59666b35 | 2706 | RETURN_IF_ERROR (result_add (dm, ", ")); |
74bcd529 DD |
2707 | /* Demangle the type. */ |
2708 | RETURN_IF_ERROR (demangle_type (dm)); | |
eb383413 | 2709 | } |
eb383413 L |
2710 | } |
2711 | ||
2712 | ++sequence; | |
2713 | } | |
59666b35 | 2714 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
eb383413 | 2715 | |
74bcd529 DD |
2716 | /* We should have demangled at least one parameter type (which would |
2717 | be void, for a function that takes no parameters), plus the | |
2718 | return type, if we were supposed to demangle that. */ | |
2719 | if (sequence == -1) | |
2720 | return "Missing function return type."; | |
2721 | else if (sequence == 0) | |
2722 | return "Missing function parameter."; | |
2723 | ||
eb383413 L |
2724 | return STATUS_OK; |
2725 | } | |
2726 | ||
74bcd529 | 2727 | /* Demangles and emits a <class-enum-type>. *ENCODE_RETURN_TYPE is set to |
eb383413 L |
2728 | non-zero if the type is a template-id, zero otherwise. |
2729 | ||
2730 | <class-enum-type> ::= <name> */ | |
2731 | ||
2732 | static status_t | |
74bcd529 | 2733 | demangle_class_enum_type (dm, encode_return_type) |
eb383413 | 2734 | demangling_t dm; |
74bcd529 | 2735 | int *encode_return_type; |
eb383413 L |
2736 | { |
2737 | DEMANGLE_TRACE ("class-enum-type", dm); | |
2738 | ||
74bcd529 | 2739 | RETURN_IF_ERROR (demangle_name (dm, encode_return_type)); |
eb383413 L |
2740 | return STATUS_OK; |
2741 | } | |
2742 | ||
2743 | /* Demangles and emits an <array-type>. | |
2744 | ||
59666b35 DD |
2745 | If PTR_INSERT_POS is not NULL, the array type is formatted as a |
2746 | pointer or reference to an array, except that asterisk and | |
2747 | ampersand punctuation is omitted (since it's not know at this | |
2748 | point). *PTR_INSERT_POS is set to the position in the demangled | |
2749 | name at which this punctuation should be inserted. For example, | |
2750 | `A10_i' is demangled to `int () [10]' and *PTR_INSERT_POS points | |
2751 | between the parentheses. | |
2752 | ||
2753 | If PTR_INSERT_POS is NULL, the array type is assumed not to be | |
2754 | pointer- or reference-qualified. Then, for example, `A10_i' is | |
2755 | demangled simply as `int[10]'. | |
2756 | ||
74bcd529 DD |
2757 | <array-type> ::= A [<dimension number>] _ <element type> |
2758 | ::= A <dimension expression> _ <element type> */ | |
eb383413 L |
2759 | |
2760 | static status_t | |
59666b35 | 2761 | demangle_array_type (dm, ptr_insert_pos) |
eb383413 | 2762 | demangling_t dm; |
59666b35 | 2763 | int *ptr_insert_pos; |
eb383413 | 2764 | { |
74bcd529 DD |
2765 | status_t status = STATUS_OK; |
2766 | dyn_string_t array_size = NULL; | |
2767 | char peek; | |
03d5f569 | 2768 | |
59666b35 DD |
2769 | DEMANGLE_TRACE ("array-type", dm); |
2770 | ||
74bcd529 | 2771 | RETURN_IF_ERROR (demangle_char (dm, 'A')); |
eb383413 L |
2772 | |
2773 | /* Demangle the array size into array_size. */ | |
74bcd529 DD |
2774 | peek = peek_char (dm); |
2775 | if (peek == '_') | |
2776 | /* Array bound is omitted. This is a C99-style VLA. */ | |
2777 | ; | |
2778 | else if (IS_DIGIT (peek_char (dm))) | |
2779 | { | |
2780 | /* It looks like a constant array bound. */ | |
2781 | array_size = dyn_string_new (10); | |
2782 | if (array_size == NULL) | |
2783 | return STATUS_ALLOCATION_FAILED; | |
2784 | status = demangle_number_literally (dm, array_size, 10, 0); | |
2785 | } | |
2786 | else | |
2787 | { | |
2788 | /* Anything is must be an expression for a nont-constant array | |
2789 | bound. This happens if the array type occurs in a template | |
2790 | and the array bound references a template parameter. */ | |
2791 | RETURN_IF_ERROR (result_push (dm)); | |
2792 | RETURN_IF_ERROR (demangle_expression (dm)); | |
2793 | array_size = (dyn_string_t) result_pop (dm); | |
2794 | } | |
2795 | /* array_size may have been allocated by now, so we can't use | |
2796 | RETURN_IF_ERROR until it's been deallocated. */ | |
eb383413 L |
2797 | |
2798 | /* Demangle the base type of the array. */ | |
03d5f569 JM |
2799 | if (STATUS_NO_ERROR (status)) |
2800 | status = demangle_char (dm, '_'); | |
2801 | if (STATUS_NO_ERROR (status)) | |
2802 | status = demangle_type (dm); | |
eb383413 | 2803 | |
59666b35 DD |
2804 | if (ptr_insert_pos != NULL) |
2805 | { | |
2806 | /* This array is actually part of an pointer- or | |
2807 | reference-to-array type. Format appropriately, except we | |
2808 | don't know which and how much punctuation to use. */ | |
2809 | if (STATUS_NO_ERROR (status)) | |
2810 | status = result_add (dm, " () "); | |
2811 | /* Let the caller know where to insert the punctuation. */ | |
2812 | *ptr_insert_pos = result_caret_pos (dm) - 2; | |
2813 | } | |
2814 | ||
eb383413 | 2815 | /* Emit the array dimension syntax. */ |
03d5f569 | 2816 | if (STATUS_NO_ERROR (status)) |
59666b35 | 2817 | status = result_add_char (dm, '['); |
74bcd529 | 2818 | if (STATUS_NO_ERROR (status) && array_size != NULL) |
59666b35 | 2819 | status = result_add_string (dm, array_size); |
03d5f569 | 2820 | if (STATUS_NO_ERROR (status)) |
59666b35 | 2821 | status = result_add_char (dm, ']'); |
74bcd529 DD |
2822 | if (array_size != NULL) |
2823 | dyn_string_delete (array_size); | |
eb383413 | 2824 | |
03d5f569 JM |
2825 | RETURN_IF_ERROR (status); |
2826 | ||
eb383413 L |
2827 | return STATUS_OK; |
2828 | } | |
2829 | ||
74bcd529 | 2830 | /* Demangles and emits a <template-param>. |
eb383413 L |
2831 | |
2832 | <template-param> ::= T_ # first template parameter | |
2833 | ::= T <parameter-2 number> _ */ | |
2834 | ||
2835 | static status_t | |
74bcd529 | 2836 | demangle_template_param (dm) |
eb383413 | 2837 | demangling_t dm; |
eb383413 L |
2838 | { |
2839 | int parm_number; | |
2840 | template_arg_list_t current_arg_list = current_template_arg_list (dm); | |
2841 | string_list_t arg; | |
2842 | ||
2843 | DEMANGLE_TRACE ("template-param", dm); | |
2844 | ||
2845 | /* Make sure there is a template argmust list in which to look up | |
2846 | this parameter reference. */ | |
2847 | if (current_arg_list == NULL) | |
2848 | return "Template parameter outside of template."; | |
2849 | ||
2850 | RETURN_IF_ERROR (demangle_char (dm, 'T')); | |
2851 | if (peek_char (dm) == '_') | |
2852 | parm_number = 0; | |
2853 | else | |
2854 | { | |
2855 | RETURN_IF_ERROR (demangle_number (dm, &parm_number, 10, 0)); | |
2856 | ++parm_number; | |
2857 | } | |
2858 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
2859 | ||
2860 | arg = template_arg_list_get_arg (current_arg_list, parm_number); | |
2861 | if (arg == NULL) | |
2862 | /* parm_number exceeded the number of arguments in the current | |
2863 | template argument list. */ | |
2864 | return "Template parameter number out of bounds."; | |
59666b35 | 2865 | RETURN_IF_ERROR (result_add_string (dm, (dyn_string_t) arg)); |
eb383413 | 2866 | |
eb383413 L |
2867 | return STATUS_OK; |
2868 | } | |
2869 | ||
2870 | /* Demangles and emits a <template-args>. | |
2871 | ||
2872 | <template-args> ::= I <template-arg>+ E */ | |
2873 | ||
2874 | static status_t | |
2875 | demangle_template_args (dm) | |
2876 | demangling_t dm; | |
2877 | { | |
2878 | int first = 1; | |
03d5f569 | 2879 | dyn_string_t old_last_source_name; |
eb383413 L |
2880 | template_arg_list_t arg_list = template_arg_list_new (); |
2881 | ||
03d5f569 JM |
2882 | if (arg_list == NULL) |
2883 | return STATUS_ALLOCATION_FAILED; | |
2884 | ||
eb383413 | 2885 | /* Preserve the most recently demangled source name. */ |
03d5f569 | 2886 | old_last_source_name = dm->last_source_name; |
eb383413 L |
2887 | dm->last_source_name = dyn_string_new (0); |
2888 | ||
2889 | DEMANGLE_TRACE ("template-args", dm); | |
2890 | ||
03d5f569 JM |
2891 | if (dm->last_source_name == NULL) |
2892 | return STATUS_ALLOCATION_FAILED; | |
2893 | ||
eb383413 | 2894 | RETURN_IF_ERROR (demangle_char (dm, 'I')); |
74bcd529 | 2895 | RETURN_IF_ERROR (result_open_template_list (dm)); |
eb383413 L |
2896 | do |
2897 | { | |
2898 | string_list_t arg; | |
2899 | ||
2900 | if (first) | |
2901 | first = 0; | |
2902 | else | |
59666b35 | 2903 | RETURN_IF_ERROR (result_add (dm, ", ")); |
eb383413 L |
2904 | |
2905 | /* Capture the template arg. */ | |
03d5f569 | 2906 | RETURN_IF_ERROR (result_push (dm)); |
eb383413 L |
2907 | RETURN_IF_ERROR (demangle_template_arg (dm)); |
2908 | arg = result_pop (dm); | |
2909 | ||
2910 | /* Emit it in the demangled name. */ | |
59666b35 | 2911 | RETURN_IF_ERROR (result_add_string (dm, (dyn_string_t) arg)); |
eb383413 L |
2912 | |
2913 | /* Save it for use in expanding <template-param>s. */ | |
2914 | template_arg_list_add_arg (arg_list, arg); | |
2915 | } | |
2916 | while (peek_char (dm) != 'E'); | |
2917 | /* Append the '>'. */ | |
03d5f569 | 2918 | RETURN_IF_ERROR (result_close_template_list (dm)); |
eb383413 L |
2919 | |
2920 | /* Consume the 'E'. */ | |
2921 | advance_char (dm); | |
2922 | ||
2923 | /* Restore the most recent demangled source name. */ | |
2924 | dyn_string_delete (dm->last_source_name); | |
2925 | dm->last_source_name = old_last_source_name; | |
2926 | ||
2927 | /* Push the list onto the top of the stack of template argument | |
2928 | lists, so that arguments from it are used from now on when | |
2929 | expanding <template-param>s. */ | |
2930 | push_template_arg_list (dm, arg_list); | |
2931 | ||
2932 | return STATUS_OK; | |
2933 | } | |
2934 | ||
2935 | /* This function, which does not correspond to a production in the | |
2936 | mangling spec, handles the `literal' production for both | |
2937 | <template-arg> and <expr-primary>. It does not expect or consume | |
2938 | the initial `L' or final `E'. The demangling is given by: | |
2939 | ||
2940 | <literal> ::= <type> </value/ number> | |
2941 | ||
2942 | and the emitted output is `(type)number'. */ | |
2943 | ||
2944 | static status_t | |
2945 | demangle_literal (dm) | |
2946 | demangling_t dm; | |
2947 | { | |
eb383413 | 2948 | char peek = peek_char (dm); |
03d5f569 JM |
2949 | dyn_string_t value_string; |
2950 | status_t status; | |
eb383413 L |
2951 | |
2952 | DEMANGLE_TRACE ("literal", dm); | |
2953 | ||
2954 | if (!flag_verbose && peek >= 'a' && peek <= 'z') | |
2955 | { | |
2956 | /* If not in verbose mode and this is a builtin type, see if we | |
2957 | can produce simpler numerical output. In particular, for | |
2958 | integer types shorter than `long', just write the number | |
2959 | without type information; for bools, write `true' or `false'. | |
2960 | Other refinements could be made here too. */ | |
2961 | ||
2962 | /* This constant string is used to map from <builtin-type> codes | |
2963 | (26 letters of the alphabet) to codes that determine how the | |
2964 | value will be displayed. The codes are: | |
2965 | b: display as bool | |
2966 | i: display as int | |
2967 | l: display as long | |
2968 | A space means the value will be represented using cast | |
2969 | notation. */ | |
2970 | static const char *const code_map = "ibi iii ll ii i "; | |
2971 | ||
2972 | char code = code_map[peek - 'a']; | |
2973 | /* FIXME: Implement demangling of floats and doubles. */ | |
2974 | if (code == 'u') | |
2975 | return STATUS_UNIMPLEMENTED; | |
2976 | if (code == 'b') | |
2977 | { | |
2978 | /* It's a boolean. */ | |
2979 | char value; | |
2980 | ||
2981 | /* Consume the b. */ | |
2982 | advance_char (dm); | |
2983 | /* Look at the next character. It should be 0 or 1, | |
2984 | corresponding to false or true, respectively. */ | |
2985 | value = peek_char (dm); | |
2986 | if (value == '0') | |
59666b35 | 2987 | RETURN_IF_ERROR (result_add (dm, "false")); |
eb383413 | 2988 | else if (value == '1') |
59666b35 | 2989 | RETURN_IF_ERROR (result_add (dm, "true")); |
eb383413 L |
2990 | else |
2991 | return "Unrecognized bool constant."; | |
2992 | /* Consume the 0 or 1. */ | |
2993 | advance_char (dm); | |
2994 | return STATUS_OK; | |
2995 | } | |
2996 | else if (code == 'i' || code == 'l') | |
2997 | { | |
2998 | /* It's an integer or long. */ | |
2999 | ||
3000 | /* Consume the type character. */ | |
3001 | advance_char (dm); | |
03d5f569 | 3002 | |
eb383413 | 3003 | /* Demangle the number and write it out. */ |
03d5f569 JM |
3004 | value_string = dyn_string_new (0); |
3005 | status = demangle_number_literally (dm, value_string, 10, 1); | |
3006 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3007 | status = result_add_string (dm, value_string); |
eb383413 | 3008 | /* For long integers, append an l. */ |
03d5f569 | 3009 | if (code == 'l' && STATUS_NO_ERROR (status)) |
59666b35 | 3010 | status = result_add_char (dm, code); |
03d5f569 JM |
3011 | dyn_string_delete (value_string); |
3012 | ||
3013 | RETURN_IF_ERROR (status); | |
eb383413 L |
3014 | return STATUS_OK; |
3015 | } | |
3016 | /* ...else code == ' ', so fall through to represent this | |
3017 | literal's type explicitly using cast syntax. */ | |
3018 | } | |
3019 | ||
59666b35 | 3020 | RETURN_IF_ERROR (result_add_char (dm, '(')); |
eb383413 | 3021 | RETURN_IF_ERROR (demangle_type (dm)); |
59666b35 | 3022 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
03d5f569 JM |
3023 | |
3024 | value_string = dyn_string_new (0); | |
3025 | if (value_string == NULL) | |
3026 | return STATUS_ALLOCATION_FAILED; | |
eb383413 | 3027 | |
03d5f569 JM |
3028 | status = demangle_number_literally (dm, value_string, 10, 1); |
3029 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3030 | status = result_add_string (dm, value_string); |
03d5f569 JM |
3031 | dyn_string_delete (value_string); |
3032 | RETURN_IF_ERROR (status); | |
eb383413 L |
3033 | |
3034 | return STATUS_OK; | |
3035 | } | |
3036 | ||
3037 | /* Demangles and emits a <template-arg>. | |
3038 | ||
3039 | <template-arg> ::= <type> # type | |
3040 | ::= L <type> <value number> E # literal | |
3041 | ::= LZ <encoding> E # external name | |
3042 | ::= X <expression> E # expression */ | |
3043 | ||
3044 | static status_t | |
3045 | demangle_template_arg (dm) | |
3046 | demangling_t dm; | |
3047 | { | |
3048 | DEMANGLE_TRACE ("template-arg", dm); | |
3049 | ||
3050 | switch (peek_char (dm)) | |
3051 | { | |
3052 | case 'L': | |
3053 | advance_char (dm); | |
3054 | ||
3055 | if (peek_char (dm) == 'Z') | |
3056 | { | |
3057 | /* External name. */ | |
3058 | advance_char (dm); | |
3059 | /* FIXME: Standard is contradictory here. */ | |
3060 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
3061 | } | |
3062 | else | |
3063 | RETURN_IF_ERROR (demangle_literal (dm)); | |
3064 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
3065 | break; | |
3066 | ||
3067 | case 'X': | |
3068 | /* Expression. */ | |
3069 | advance_char (dm); | |
3070 | RETURN_IF_ERROR (demangle_expression (dm)); | |
74bcd529 | 3071 | RETURN_IF_ERROR (demangle_char (dm, 'E')); |
eb383413 L |
3072 | break; |
3073 | ||
3074 | default: | |
3075 | RETURN_IF_ERROR (demangle_type (dm)); | |
3076 | break; | |
3077 | } | |
3078 | ||
3079 | return STATUS_OK; | |
3080 | } | |
3081 | ||
3082 | /* Demangles and emits an <expression>. | |
3083 | ||
3084 | <expression> ::= <unary operator-name> <expression> | |
3085 | ::= <binary operator-name> <expression> <expression> | |
3086 | ::= <expr-primary> | |
3087 | ::= <scope-expression> */ | |
3088 | ||
3089 | static status_t | |
3090 | demangle_expression (dm) | |
3091 | demangling_t dm; | |
3092 | { | |
3093 | char peek = peek_char (dm); | |
3094 | ||
3095 | DEMANGLE_TRACE ("expression", dm); | |
3096 | ||
3097 | if (peek == 'L' || peek == 'T') | |
3098 | RETURN_IF_ERROR (demangle_expr_primary (dm)); | |
3099 | else if (peek == 's' && peek_char_next (dm) == 'r') | |
3100 | RETURN_IF_ERROR (demangle_scope_expression (dm)); | |
3101 | else | |
3102 | /* An operator expression. */ | |
3103 | { | |
3104 | int num_args; | |
03d5f569 | 3105 | status_t status = STATUS_OK; |
eb383413 L |
3106 | dyn_string_t operator_name; |
3107 | ||
3108 | /* We have an operator name. Since we want to output binary | |
3109 | operations in infix notation, capture the operator name | |
3110 | first. */ | |
03d5f569 | 3111 | RETURN_IF_ERROR (result_push (dm)); |
eb383413 L |
3112 | RETURN_IF_ERROR (demangle_operator_name (dm, 1, &num_args)); |
3113 | operator_name = (dyn_string_t) result_pop (dm); | |
3114 | ||
3115 | /* If it's binary, do an operand first. */ | |
3116 | if (num_args > 1) | |
3117 | { | |
59666b35 | 3118 | status = result_add_char (dm, '('); |
03d5f569 JM |
3119 | if (STATUS_NO_ERROR (status)) |
3120 | status = demangle_expression (dm); | |
3121 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3122 | status = result_add_char (dm, ')'); |
eb383413 L |
3123 | } |
3124 | ||
03d5f569 JM |
3125 | /* Emit the operator. */ |
3126 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3127 | status = result_add_string (dm, operator_name); |
eb383413 | 3128 | dyn_string_delete (operator_name); |
03d5f569 JM |
3129 | RETURN_IF_ERROR (status); |
3130 | ||
3131 | /* Emit its second (if binary) or only (if unary) operand. */ | |
59666b35 | 3132 | RETURN_IF_ERROR (result_add_char (dm, '(')); |
eb383413 | 3133 | RETURN_IF_ERROR (demangle_expression (dm)); |
59666b35 | 3134 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
eb383413 L |
3135 | |
3136 | /* The ternary operator takes a third operand. */ | |
3137 | if (num_args == 3) | |
3138 | { | |
59666b35 | 3139 | RETURN_IF_ERROR (result_add (dm, ":(")); |
eb383413 | 3140 | RETURN_IF_ERROR (demangle_expression (dm)); |
59666b35 | 3141 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
eb383413 L |
3142 | } |
3143 | } | |
3144 | ||
3145 | return STATUS_OK; | |
3146 | } | |
3147 | ||
3148 | /* Demangles and emits a <scope-expression>. | |
3149 | ||
3150 | <scope-expression> ::= sr <qualifying type> <source-name> | |
3151 | ::= sr <qualifying type> <encoding> */ | |
3152 | ||
3153 | static status_t | |
3154 | demangle_scope_expression (dm) | |
3155 | demangling_t dm; | |
3156 | { | |
3157 | RETURN_IF_ERROR (demangle_char (dm, 's')); | |
3158 | RETURN_IF_ERROR (demangle_char (dm, 'r')); | |
3159 | RETURN_IF_ERROR (demangle_type (dm)); | |
59666b35 | 3160 | RETURN_IF_ERROR (result_add (dm, "::")); |
eb383413 L |
3161 | RETURN_IF_ERROR (demangle_encoding (dm)); |
3162 | return STATUS_OK; | |
3163 | } | |
3164 | ||
3165 | /* Demangles and emits an <expr-primary>. | |
3166 | ||
3167 | <expr-primary> ::= <template-param> | |
3168 | ::= L <type> <value number> E # literal | |
3169 | ::= L <mangled-name> E # external name */ | |
3170 | ||
3171 | static status_t | |
3172 | demangle_expr_primary (dm) | |
3173 | demangling_t dm; | |
3174 | { | |
3175 | char peek = peek_char (dm); | |
eb383413 L |
3176 | |
3177 | DEMANGLE_TRACE ("expr-primary", dm); | |
3178 | ||
3179 | if (peek == 'T') | |
74bcd529 | 3180 | RETURN_IF_ERROR (demangle_template_param (dm)); |
eb383413 L |
3181 | else if (peek == 'L') |
3182 | { | |
3183 | /* Consume the `L'. */ | |
3184 | advance_char (dm); | |
3185 | peek = peek_char (dm); | |
3186 | ||
3187 | if (peek == '_') | |
3188 | RETURN_IF_ERROR (demangle_mangled_name (dm)); | |
3189 | else | |
3190 | RETURN_IF_ERROR (demangle_literal (dm)); | |
3191 | ||
3192 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
3193 | } | |
3194 | else | |
3195 | return STATUS_ERROR; | |
3196 | ||
3197 | return STATUS_OK; | |
3198 | } | |
3199 | ||
3200 | /* Demangles and emits a <substitution>. Sets *TEMPLATE_P to non-zero | |
74bcd529 | 3201 | if the substitution is the name of a template, zero otherwise. |
eb383413 L |
3202 | |
3203 | <substitution> ::= S <seq-id> _ | |
3204 | ::= S_ | |
3205 | ||
3206 | ::= St # ::std:: | |
3207 | ::= Sa # ::std::allocator | |
3208 | ::= Sb # ::std::basic_string | |
3209 | ::= Ss # ::std::basic_string<char, | |
3210 | ::std::char_traits<char>, | |
3211 | ::std::allocator<char> > | |
3212 | ::= Si # ::std::basic_istream<char, | |
3213 | std::char_traits<char> > | |
3214 | ::= So # ::std::basic_ostream<char, | |
3215 | std::char_traits<char> > | |
3216 | ::= Sd # ::std::basic_iostream<char, | |
74bcd529 | 3217 | std::char_traits<char> > |
eb383413 L |
3218 | */ |
3219 | ||
3220 | static status_t | |
74bcd529 | 3221 | demangle_substitution (dm, template_p) |
eb383413 L |
3222 | demangling_t dm; |
3223 | int *template_p; | |
eb383413 L |
3224 | { |
3225 | int seq_id; | |
3226 | int peek; | |
3227 | dyn_string_t text; | |
3228 | ||
3229 | DEMANGLE_TRACE ("substitution", dm); | |
3230 | ||
3231 | RETURN_IF_ERROR (demangle_char (dm, 'S')); | |
eb383413 L |
3232 | |
3233 | /* Scan the substitution sequence index. A missing number denotes | |
3234 | the first index. */ | |
3235 | peek = peek_char (dm); | |
3236 | if (peek == '_') | |
3237 | seq_id = -1; | |
3238 | /* If the following character is 0-9 or a capital letter, interpret | |
3239 | the sequence up to the next underscore as a base-36 substitution | |
3240 | index. */ | |
03d5f569 | 3241 | else if (IS_DIGIT ((unsigned char) peek) |
eb383413 L |
3242 | || (peek >= 'A' && peek <= 'Z')) |
3243 | RETURN_IF_ERROR (demangle_number (dm, &seq_id, 36, 0)); | |
3244 | else | |
3245 | { | |
03d5f569 JM |
3246 | const char *new_last_source_name = NULL; |
3247 | ||
eb383413 L |
3248 | switch (peek) |
3249 | { | |
3250 | case 't': | |
59666b35 | 3251 | RETURN_IF_ERROR (result_add (dm, "std")); |
eb383413 L |
3252 | break; |
3253 | ||
3254 | case 'a': | |
59666b35 | 3255 | RETURN_IF_ERROR (result_add (dm, "std::allocator")); |
03d5f569 JM |
3256 | new_last_source_name = "allocator"; |
3257 | *template_p = 1; | |
eb383413 L |
3258 | break; |
3259 | ||
3260 | case 'b': | |
59666b35 | 3261 | RETURN_IF_ERROR (result_add (dm, "std::basic_string")); |
03d5f569 JM |
3262 | new_last_source_name = "basic_string"; |
3263 | *template_p = 1; | |
eb383413 L |
3264 | break; |
3265 | ||
3266 | case 's': | |
3267 | if (!flag_verbose) | |
3268 | { | |
59666b35 | 3269 | RETURN_IF_ERROR (result_add (dm, "std::string")); |
03d5f569 | 3270 | new_last_source_name = "string"; |
eb383413 L |
3271 | } |
3272 | else | |
3273 | { | |
59666b35 | 3274 | RETURN_IF_ERROR (result_add (dm, "std::basic_string<char, std::char_traits<char>, std::allocator<char> >")); |
03d5f569 | 3275 | new_last_source_name = "basic_string"; |
eb383413 | 3276 | } |
03d5f569 | 3277 | *template_p = 0; |
eb383413 L |
3278 | break; |
3279 | ||
3280 | case 'i': | |
3281 | if (!flag_verbose) | |
3282 | { | |
59666b35 | 3283 | RETURN_IF_ERROR (result_add (dm, "std::istream")); |
03d5f569 | 3284 | new_last_source_name = "istream"; |
eb383413 L |
3285 | } |
3286 | else | |
3287 | { | |
59666b35 | 3288 | RETURN_IF_ERROR (result_add (dm, "std::basic_istream<char, std::char_traints<char> >")); |
03d5f569 | 3289 | new_last_source_name = "basic_istream"; |
eb383413 | 3290 | } |
03d5f569 | 3291 | *template_p = 0; |
eb383413 L |
3292 | break; |
3293 | ||
3294 | case 'o': | |
3295 | if (!flag_verbose) | |
3296 | { | |
59666b35 | 3297 | RETURN_IF_ERROR (result_add (dm, "std::ostream")); |
03d5f569 | 3298 | new_last_source_name = "ostream"; |
eb383413 L |
3299 | } |
3300 | else | |
3301 | { | |
59666b35 | 3302 | RETURN_IF_ERROR (result_add (dm, "std::basic_ostream<char, std::char_traits<char> >")); |
03d5f569 | 3303 | new_last_source_name = "basic_ostream"; |
eb383413 | 3304 | } |
03d5f569 | 3305 | *template_p = 0; |
eb383413 L |
3306 | break; |
3307 | ||
3308 | case 'd': | |
3309 | if (!flag_verbose) | |
3310 | { | |
59666b35 | 3311 | RETURN_IF_ERROR (result_add (dm, "std::iostream")); |
03d5f569 | 3312 | new_last_source_name = "iostream"; |
eb383413 L |
3313 | } |
3314 | else | |
3315 | { | |
59666b35 | 3316 | RETURN_IF_ERROR (result_add (dm, "std::basic_iostream<char, std::char_traits<char> >")); |
03d5f569 | 3317 | new_last_source_name = "basic_iostream"; |
eb383413 | 3318 | } |
03d5f569 | 3319 | *template_p = 0; |
eb383413 L |
3320 | break; |
3321 | ||
3322 | default: | |
3323 | return "Unrecognized <substitution>."; | |
3324 | } | |
3325 | ||
03d5f569 | 3326 | /* Consume the character we just processed. */ |
eb383413 | 3327 | advance_char (dm); |
03d5f569 JM |
3328 | |
3329 | if (new_last_source_name != NULL) | |
3330 | { | |
3331 | if (!dyn_string_copy_cstr (dm->last_source_name, | |
3332 | new_last_source_name)) | |
3333 | return STATUS_ALLOCATION_FAILED; | |
3334 | } | |
3335 | ||
eb383413 L |
3336 | return STATUS_OK; |
3337 | } | |
3338 | ||
3339 | /* Look up the substitution text. Since `S_' is the most recent | |
3340 | substitution, `S0_' is the second-most-recent, etc., shift the | |
3341 | numbering by one. */ | |
3342 | text = substitution_get (dm, seq_id + 1, template_p); | |
03d5f569 | 3343 | if (text == NULL) |
eb383413 L |
3344 | return "Substitution number out of range."; |
3345 | ||
3346 | /* Emit the substitution text. */ | |
59666b35 | 3347 | RETURN_IF_ERROR (result_add_string (dm, text)); |
eb383413 L |
3348 | |
3349 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
3350 | return STATUS_OK; | |
3351 | } | |
3352 | ||
3353 | /* Demangles and emits a <local-name>. | |
3354 | ||
3355 | <local-name> := Z <function encoding> E <entity name> [<discriminator>] | |
3356 | := Z <function encoding> E s [<discriminator>] */ | |
3357 | ||
3358 | static status_t | |
3359 | demangle_local_name (dm) | |
3360 | demangling_t dm; | |
3361 | { | |
3362 | DEMANGLE_TRACE ("local-name", dm); | |
3363 | ||
3364 | RETURN_IF_ERROR (demangle_char (dm, 'Z')); | |
3365 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
3366 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
59666b35 | 3367 | RETURN_IF_ERROR (result_add (dm, "::")); |
eb383413 L |
3368 | |
3369 | if (peek_char (dm) == 's') | |
3370 | { | |
3371 | /* Local character string literal. */ | |
59666b35 | 3372 | RETURN_IF_ERROR (result_add (dm, "string literal")); |
eb383413 L |
3373 | /* Consume the s. */ |
3374 | advance_char (dm); | |
3375 | RETURN_IF_ERROR (demangle_discriminator (dm, 0)); | |
3376 | } | |
3377 | else | |
3378 | { | |
3379 | int unused; | |
eb383413 L |
3380 | /* Local name for some other entity. Demangle its name. */ |
3381 | RETURN_IF_ERROR (demangle_name (dm, &unused)); | |
3382 | RETURN_IF_ERROR (demangle_discriminator (dm, 1)); | |
3383 | } | |
3384 | ||
3385 | return STATUS_OK; | |
3386 | } | |
3387 | ||
3388 | /* Optimonally demangles and emits a <discriminator>. If there is no | |
3389 | <discriminator> at the current position in the mangled string, the | |
3390 | descriminator is assumed to be zero. Emit the discriminator number | |
3391 | in parentheses, unless SUPPRESS_FIRST is non-zero and the | |
3392 | discriminator is zero. | |
3393 | ||
3394 | <discriminator> ::= _ <number> */ | |
3395 | ||
3396 | static status_t | |
3397 | demangle_discriminator (dm, suppress_first) | |
3398 | demangling_t dm; | |
3399 | int suppress_first; | |
3400 | { | |
3401 | /* Output for <discriminator>s to the demangled name is completely | |
74bcd529 | 3402 | suppressed if not in verbose mode. */ |
eb383413 L |
3403 | |
3404 | if (peek_char (dm) == '_') | |
3405 | { | |
3406 | /* Consume the underscore. */ | |
3407 | advance_char (dm); | |
3408 | if (flag_verbose) | |
59666b35 | 3409 | RETURN_IF_ERROR (result_add (dm, " [#")); |
eb383413 | 3410 | /* Check if there's a number following the underscore. */ |
03d5f569 | 3411 | if (IS_DIGIT ((unsigned char) peek_char (dm))) |
eb383413 L |
3412 | { |
3413 | int discriminator; | |
3414 | /* Demangle the number. */ | |
3415 | RETURN_IF_ERROR (demangle_number (dm, &discriminator, 10, 0)); | |
3416 | if (flag_verbose) | |
3417 | /* Write the discriminator. The mangled number is two | |
3418 | less than the discriminator ordinal, counting from | |
3419 | zero. */ | |
03d5f569 JM |
3420 | RETURN_IF_ERROR (int_to_dyn_string (discriminator + 2, |
3421 | (dyn_string_t) dm->result)); | |
eb383413 L |
3422 | } |
3423 | else | |
3424 | { | |
3425 | if (flag_verbose) | |
3426 | /* A missing digit correspond to one. */ | |
59666b35 | 3427 | RETURN_IF_ERROR (result_add_char (dm, '1')); |
eb383413 L |
3428 | } |
3429 | if (flag_verbose) | |
59666b35 | 3430 | RETURN_IF_ERROR (result_add_char (dm, ']')); |
eb383413 L |
3431 | } |
3432 | else if (!suppress_first) | |
3433 | { | |
3434 | if (flag_verbose) | |
59666b35 | 3435 | RETURN_IF_ERROR (result_add (dm, " [#0]")); |
eb383413 L |
3436 | } |
3437 | ||
3438 | return STATUS_OK; | |
3439 | } | |
3440 | ||
3441 | /* Demangle NAME into RESULT, which must be an initialized | |
3442 | dyn_string_t. On success, returns STATUS_OK. On failure, returns | |
3443 | an error message, and the contents of RESULT are unchanged. */ | |
3444 | ||
3445 | static status_t | |
bc9bf259 | 3446 | cp_demangle (name, result, style) |
03d5f569 | 3447 | const char *name; |
eb383413 | 3448 | dyn_string_t result; |
bc9bf259 | 3449 | int style; |
eb383413 L |
3450 | { |
3451 | status_t status; | |
3452 | int length = strlen (name); | |
3453 | ||
3454 | if (length > 2 && name[0] == '_' && name[1] == 'Z') | |
3455 | { | |
bc9bf259 | 3456 | demangling_t dm = demangling_new (name, style); |
03d5f569 JM |
3457 | if (dm == NULL) |
3458 | return STATUS_ALLOCATION_FAILED; | |
eb383413 | 3459 | |
03d5f569 JM |
3460 | status = result_push (dm); |
3461 | if (status != STATUS_OK) | |
3462 | { | |
3463 | demangling_delete (dm); | |
3464 | return status; | |
3465 | } | |
eb383413 | 3466 | |
03d5f569 JM |
3467 | status = demangle_mangled_name (dm); |
3468 | if (STATUS_NO_ERROR (status)) | |
eb383413 L |
3469 | { |
3470 | dyn_string_t demangled = (dyn_string_t) result_pop (dm); | |
03d5f569 JM |
3471 | if (!dyn_string_copy (result, demangled)) |
3472 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
3473 | dyn_string_delete (demangled); |
3474 | } | |
3475 | ||
3476 | demangling_delete (dm); | |
3477 | } | |
3478 | else | |
3479 | { | |
3480 | /* It's evidently not a mangled C++ name. It could be the name | |
3481 | of something with C linkage, though, so just copy NAME into | |
3482 | RESULT. */ | |
03d5f569 JM |
3483 | if (!dyn_string_copy_cstr (result, name)) |
3484 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
3485 | status = STATUS_OK; |
3486 | } | |
3487 | ||
03d5f569 JM |
3488 | return status; |
3489 | } | |
3490 | ||
3491 | /* Demangle TYPE_NAME into RESULT, which must be an initialized | |
3492 | dyn_string_t. On success, returns STATUS_OK. On failiure, returns | |
3493 | an error message, and the contents of RESULT are unchanged. */ | |
3494 | ||
74bcd529 | 3495 | #ifdef IN_LIBGCC2 |
03d5f569 JM |
3496 | static status_t |
3497 | cp_demangle_type (type_name, result) | |
3498 | const char* type_name; | |
3499 | dyn_string_t result; | |
3500 | { | |
3501 | status_t status; | |
3502 | demangling_t dm = demangling_new (type_name); | |
3503 | ||
3504 | if (dm == NULL) | |
3505 | return STATUS_ALLOCATION_FAILED; | |
3506 | ||
3507 | /* Demangle the type name. The demangled name is stored in dm. */ | |
3508 | status = result_push (dm); | |
3509 | if (status != STATUS_OK) | |
3510 | { | |
3511 | demangling_delete (dm); | |
3512 | return status; | |
3513 | } | |
3514 | ||
3515 | status = demangle_type (dm); | |
3516 | ||
3517 | if (STATUS_NO_ERROR (status)) | |
3518 | { | |
3519 | /* The demangling succeeded. Pop the result out of dm and copy | |
3520 | it into RESULT. */ | |
3521 | dyn_string_t demangled = (dyn_string_t) result_pop (dm); | |
3522 | if (!dyn_string_copy (result, demangled)) | |
3523 | return STATUS_ALLOCATION_FAILED; | |
3524 | dyn_string_delete (demangled); | |
3525 | } | |
3526 | ||
3527 | /* Clean up. */ | |
3528 | demangling_delete (dm); | |
3529 | ||
eb383413 L |
3530 | return status; |
3531 | } | |
3532 | ||
03d5f569 JM |
3533 | extern char *__cxa_demangle PARAMS ((const char *, char *, size_t *, int *)); |
3534 | ||
e49a569c | 3535 | /* ia64 ABI-mandated entry point in the C++ runtime library for performing |
03d5f569 JM |
3536 | demangling. MANGLED_NAME is a NUL-terminated character string |
3537 | containing the name to be demangled. | |
3538 | ||
3539 | OUTPUT_BUFFER is a region of memory, allocated with malloc, of | |
3540 | *LENGTH bytes, into which the demangled name is stored. If | |
3541 | OUTPUT_BUFFER is not long enough, it is expanded using realloc. | |
3542 | OUTPUT_BUFFER may instead be NULL; in that case, the demangled name | |
3543 | is placed in a region of memory allocated with malloc. | |
3544 | ||
3545 | If LENGTH is non-NULL, the length of the buffer conaining the | |
3546 | demangled name, is placed in *LENGTH. | |
3547 | ||
3548 | The return value is a pointer to the start of the NUL-terminated | |
3549 | demangled name, or NULL if the demangling fails. The caller is | |
3550 | responsible for deallocating this memory using free. | |
3551 | ||
3552 | *STATUS is set to one of the following values: | |
3553 | 0: The demangling operation succeeded. | |
3554 | -1: A memory allocation failiure occurred. | |
3555 | -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules. | |
3556 | -3: One of the arguments is invalid. | |
3557 | ||
3558 | The demagling is performed using the C++ ABI mangling rules, with | |
3559 | GNU extensions. */ | |
3560 | ||
3561 | char * | |
3562 | __cxa_demangle (mangled_name, output_buffer, length, status) | |
3563 | const char *mangled_name; | |
3564 | char *output_buffer; | |
3565 | size_t *length; | |
3566 | int *status; | |
3567 | { | |
3568 | struct dyn_string demangled_name; | |
3569 | status_t result; | |
3570 | ||
3571 | if (status == NULL) | |
3572 | return NULL; | |
3573 | ||
3574 | if (mangled_name == NULL) { | |
3575 | *status = -3; | |
3576 | return NULL; | |
3577 | } | |
3578 | ||
3579 | /* Did the caller provide a buffer for the demangled name? */ | |
3580 | if (output_buffer == NULL) { | |
3581 | /* No; dyn_string will malloc a buffer for us. */ | |
3582 | if (!dyn_string_init (&demangled_name, 0)) | |
3583 | { | |
3584 | *status = -1; | |
3585 | return NULL; | |
3586 | } | |
3587 | } | |
3588 | else { | |
3589 | /* Yes. Check that the length was provided. */ | |
3590 | if (length == NULL) { | |
3591 | *status = -3; | |
3592 | return NULL; | |
3593 | } | |
3594 | /* Install the buffer into a dyn_string. */ | |
3595 | demangled_name.allocated = *length; | |
3596 | demangled_name.length = 0; | |
3597 | demangled_name.s = output_buffer; | |
3598 | } | |
3599 | ||
3600 | if (mangled_name[0] == '_' && mangled_name[1] == 'Z') | |
3601 | /* MANGLED_NAME apprears to be a function or variable name. | |
3602 | Demangle it accordingly. */ | |
bc9bf259 | 3603 | result = cp_demangle (mangled_name, &demangled_name, 0); |
03d5f569 JM |
3604 | else |
3605 | /* Try to demangled MANGLED_NAME as the name of a type. */ | |
3606 | result = cp_demangle_type (mangled_name, &demangled_name); | |
3607 | ||
3608 | if (result == STATUS_OK) | |
3609 | /* The demangling succeeded. */ | |
3610 | { | |
3611 | /* If LENGTH isn't NULL, store the allocated buffer length | |
3612 | there; the buffer may have been realloced by dyn_string | |
3613 | functions. */ | |
3614 | if (length != NULL) | |
3615 | *length = demangled_name.allocated; | |
3616 | /* The operation was a success. */ | |
3617 | *status = 0; | |
3618 | return dyn_string_buf (&demangled_name); | |
3619 | } | |
3620 | else if (result == STATUS_ALLOCATION_FAILED) | |
3621 | /* A call to malloc or realloc failed during the demangling | |
3622 | operation. */ | |
3623 | { | |
3624 | *status = -1; | |
3625 | return NULL; | |
3626 | } | |
3627 | else | |
3628 | /* The demangling failed for another reason, most probably because | |
3629 | MANGLED_NAME isn't a valid mangled name. */ | |
3630 | { | |
3631 | /* If the buffer containing the demangled name wasn't provided | |
3632 | by the caller, free it. */ | |
3633 | if (output_buffer == NULL) | |
3634 | free (dyn_string_buf (&demangled_name)); | |
3635 | *status = -2; | |
3636 | return NULL; | |
3637 | } | |
3638 | } | |
3639 | ||
3640 | #else /* !IN_LIBGCC2 */ | |
3641 | ||
eb383413 L |
3642 | /* Variant entry point for integration with the existing cplus-dem |
3643 | demangler. Attempts to demangle MANGLED. If the demangling | |
3644 | succeeds, returns a buffer, allocated with malloc, containing the | |
3645 | demangled name. The caller must deallocate the buffer using free. | |
3646 | If the demangling failes, returns NULL. */ | |
3647 | ||
3648 | char * | |
e49a569c | 3649 | cplus_demangle_v3 (mangled) |
eb383413 L |
3650 | const char* mangled; |
3651 | { | |
849ee224 DD |
3652 | dyn_string_t demangled; |
3653 | status_t status; | |
3654 | ||
3655 | /* If this isn't a mangled name, don't pretend to demangle it. */ | |
3656 | if (strncmp (mangled, "_Z", 2) != 0) | |
3657 | return NULL; | |
3658 | ||
eb383413 | 3659 | /* Create a dyn_string to hold the demangled name. */ |
849ee224 | 3660 | demangled = dyn_string_new (0); |
eb383413 | 3661 | /* Attempt the demangling. */ |
bc9bf259 | 3662 | status = cp_demangle ((char *) mangled, demangled, 0); |
849ee224 | 3663 | |
03d5f569 | 3664 | if (STATUS_NO_ERROR (status)) |
eb383413 L |
3665 | /* Demangling succeeded. */ |
3666 | { | |
3667 | /* Grab the demangled result from the dyn_string. It was | |
3668 | allocated with malloc, so we can return it directly. */ | |
3669 | char *return_value = dyn_string_release (demangled); | |
eb383413 L |
3670 | /* Hand back the demangled name. */ |
3671 | return return_value; | |
3672 | } | |
03d5f569 JM |
3673 | else if (status == STATUS_ALLOCATION_FAILED) |
3674 | { | |
3675 | fprintf (stderr, "Memory allocation failed.\n"); | |
3676 | abort (); | |
3677 | } | |
eb383413 L |
3678 | else |
3679 | /* Demangling failed. */ | |
3680 | { | |
3681 | dyn_string_delete (demangled); | |
3682 | return NULL; | |
3683 | } | |
3684 | } | |
3685 | ||
bc9bf259 DD |
3686 | /* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling |
3687 | conventions, but the output formatting is a little different. | |
3688 | This instructs the C++ demangler not to emit pointer characters ("*"), and | |
3689 | to use Java's namespace separator symbol ("." instead of "::"). It then | |
3690 | does an additional pass over the demangled output to replace instances | |
3691 | of JArray<TYPE> with TYPE[]. */ | |
3692 | ||
3693 | char * | |
3694 | java_demangle_v3 (mangled) | |
3695 | const char* mangled; | |
3696 | { | |
3697 | dyn_string_t demangled; | |
3698 | char *next; | |
3699 | char *end; | |
3700 | int len; | |
3701 | status_t status; | |
3702 | int nesting = 0; | |
3703 | char *cplus_demangled; | |
3704 | char *return_value; | |
3705 | ||
3706 | /* Create a dyn_string to hold the demangled name. */ | |
3707 | demangled = dyn_string_new (0); | |
3708 | ||
3709 | /* Attempt the demangling. */ | |
3710 | status = cp_demangle ((char *) mangled, demangled, DMGL_JAVA); | |
3711 | ||
3712 | if (STATUS_NO_ERROR (status)) | |
3713 | /* Demangling succeeded. */ | |
3714 | { | |
3715 | /* Grab the demangled result from the dyn_string. */ | |
3716 | cplus_demangled = dyn_string_release (demangled); | |
3717 | } | |
3718 | else if (status == STATUS_ALLOCATION_FAILED) | |
3719 | { | |
3720 | fprintf (stderr, "Memory allocation failed.\n"); | |
3721 | abort (); | |
3722 | } | |
3723 | else | |
3724 | /* Demangling failed. */ | |
3725 | { | |
3726 | dyn_string_delete (demangled); | |
3727 | return NULL; | |
3728 | } | |
3729 | ||
3730 | len = strlen (cplus_demangled); | |
3731 | next = cplus_demangled; | |
3732 | end = next + len; | |
3733 | demangled = NULL; | |
3734 | ||
3735 | /* Replace occurances of JArray<TYPE> with TYPE[]. */ | |
3736 | while (next < end) | |
3737 | { | |
3738 | char *open_str = strstr (next, "JArray<"); | |
3739 | char *close_str = NULL; | |
3740 | if (nesting > 0) | |
3741 | close_str = strchr (next, '>'); | |
3742 | ||
3743 | if (open_str != NULL && (close_str == NULL || close_str > open_str)) | |
3744 | { | |
3745 | ++nesting; | |
3746 | ||
3747 | if (!demangled) | |
3748 | demangled = dyn_string_new(len); | |
3749 | ||
3750 | /* Copy prepending symbols, if any. */ | |
3751 | if (open_str > next) | |
3752 | { | |
3753 | open_str[0] = 0; | |
3754 | dyn_string_append_cstr (demangled, next); | |
3755 | } | |
3756 | next = open_str + 7; | |
3757 | } | |
3758 | else if (close_str != NULL) | |
3759 | { | |
3760 | --nesting; | |
3761 | ||
3762 | /* Copy prepending type symbol, if any. Squash any spurious | |
3763 | whitespace. */ | |
3764 | if (close_str > next && next[0] != ' ') | |
3765 | { | |
3766 | close_str[0] = 0; | |
3767 | dyn_string_append_cstr (demangled, next); | |
3768 | } | |
3769 | dyn_string_append_cstr (demangled, "[]"); | |
3770 | next = close_str + 1; | |
3771 | } | |
3772 | else | |
3773 | { | |
3774 | /* There are no more arrays. Copy the rest of the symbol, or | |
3775 | simply return the original symbol if no changes were made. */ | |
3776 | if (next == cplus_demangled) | |
3777 | return cplus_demangled; | |
3778 | ||
3779 | dyn_string_append_cstr (demangled, next); | |
3780 | next = end; | |
3781 | } | |
3782 | } | |
3783 | ||
3784 | free (cplus_demangled); | |
3785 | ||
3786 | return_value = dyn_string_release (demangled); | |
3787 | return return_value; | |
3788 | } | |
3789 | ||
03d5f569 JM |
3790 | #endif /* IN_LIBGCC2 */ |
3791 | ||
eb383413 L |
3792 | #ifdef STANDALONE_DEMANGLER |
3793 | ||
3794 | #include "getopt.h" | |
3795 | ||
3796 | static void print_usage | |
3797 | PARAMS ((FILE* fp, int exit_value)); | |
3798 | ||
3799 | /* Non-zero if CHAR is a character than can occur in a mangled name. */ | |
3800 | #define is_mangled_char(CHAR) \ | |
74bcd529 DD |
3801 | (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \ |
3802 | || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$') | |
eb383413 L |
3803 | |
3804 | /* The name of this program, as invoked. */ | |
3805 | const char* program_name; | |
3806 | ||
3807 | /* Prints usage summary to FP and then exits with EXIT_VALUE. */ | |
3808 | ||
3809 | static void | |
3810 | print_usage (fp, exit_value) | |
3811 | FILE* fp; | |
3812 | int exit_value; | |
3813 | { | |
3814 | fprintf (fp, "Usage: %s [options] [names ...]\n", program_name); | |
74bcd529 | 3815 | fprintf (fp, "Options:\n"); |
eb383413 L |
3816 | fprintf (fp, " -h,--help Display this message.\n"); |
3817 | fprintf (fp, " -s,--strict Demangle standard names only.\n"); | |
3818 | fprintf (fp, " -v,--verbose Produce verbose demanglings.\n"); | |
3819 | fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n"); | |
3820 | ||
3821 | exit (exit_value); | |
3822 | } | |
3823 | ||
3824 | /* Option specification for getopt_long. */ | |
3825 | static struct option long_options[] = | |
3826 | { | |
3827 | { "help", no_argument, NULL, 'h' }, | |
3828 | { "strict", no_argument, NULL, 's' }, | |
3829 | { "verbose", no_argument, NULL, 'v' }, | |
3830 | { NULL, no_argument, NULL, 0 }, | |
3831 | }; | |
3832 | ||
3833 | /* Main entry for a demangling filter executable. It will demangle | |
3834 | its command line arguments, if any. If none are provided, it will | |
3835 | filter stdin to stdout, replacing any recognized mangled C++ names | |
3836 | with their demangled equivalents. */ | |
3837 | ||
3838 | int | |
3839 | main (argc, argv) | |
3840 | int argc; | |
3841 | char *argv[]; | |
3842 | { | |
3843 | status_t status; | |
3844 | int i; | |
3845 | int opt_char; | |
3846 | ||
3847 | /* Use the program name of this program, as invoked. */ | |
3848 | program_name = argv[0]; | |
3849 | ||
3850 | /* Parse options. */ | |
3851 | do | |
3852 | { | |
3853 | opt_char = getopt_long (argc, argv, "hsv", long_options, NULL); | |
3854 | switch (opt_char) | |
3855 | { | |
3856 | case '?': /* Unrecognized option. */ | |
3857 | print_usage (stderr, 1); | |
3858 | break; | |
3859 | ||
3860 | case 'h': | |
3861 | print_usage (stdout, 0); | |
3862 | break; | |
3863 | ||
3864 | case 's': | |
3865 | flag_strict = 1; | |
3866 | break; | |
3867 | ||
3868 | case 'v': | |
3869 | flag_verbose = 1; | |
3870 | break; | |
3871 | } | |
3872 | } | |
3873 | while (opt_char != -1); | |
3874 | ||
3875 | if (optind == argc) | |
3876 | /* No command line arguments were provided. Filter stdin. */ | |
3877 | { | |
3878 | dyn_string_t mangled = dyn_string_new (3); | |
3879 | dyn_string_t demangled = dyn_string_new (0); | |
3880 | status_t status; | |
3881 | ||
3882 | /* Read all of input. */ | |
3883 | while (!feof (stdin)) | |
3884 | { | |
3885 | char c = getchar (); | |
3886 | ||
3887 | /* The first character of a mangled name is an underscore. */ | |
3888 | if (feof (stdin)) | |
3889 | break; | |
3890 | if (c != '_') | |
3891 | { | |
3892 | /* It's not a mangled name. Print the character and go | |
3893 | on. */ | |
3894 | putchar (c); | |
3895 | continue; | |
3896 | } | |
3897 | c = getchar (); | |
3898 | ||
3899 | /* The second character of a mangled name is a capital `Z'. */ | |
3900 | if (feof (stdin)) | |
3901 | break; | |
3902 | if (c != 'Z') | |
3903 | { | |
3904 | /* It's not a mangled name. Print the previous | |
3905 | underscore, the `Z', and go on. */ | |
3906 | putchar ('_'); | |
3907 | putchar (c); | |
3908 | continue; | |
3909 | } | |
3910 | ||
3911 | /* Start keeping track of the candidate mangled name. */ | |
3912 | dyn_string_append_char (mangled, '_'); | |
3913 | dyn_string_append_char (mangled, 'Z'); | |
3914 | ||
3915 | /* Pile characters into mangled until we hit one that can't | |
3916 | occur in a mangled name. */ | |
3917 | c = getchar (); | |
3918 | while (!feof (stdin) && is_mangled_char (c)) | |
3919 | { | |
3920 | dyn_string_append_char (mangled, c); | |
3921 | if (feof (stdin)) | |
3922 | break; | |
3923 | c = getchar (); | |
3924 | } | |
3925 | ||
3926 | /* Attempt to demangle the name. */ | |
bc9bf259 | 3927 | status = cp_demangle (dyn_string_buf (mangled), demangled, 0); |
eb383413 L |
3928 | |
3929 | /* If the demangling succeeded, great! Print out the | |
3930 | demangled version. */ | |
03d5f569 | 3931 | if (STATUS_NO_ERROR (status)) |
eb383413 | 3932 | fputs (dyn_string_buf (demangled), stdout); |
03d5f569 JM |
3933 | /* Abort on allocation failures. */ |
3934 | else if (status == STATUS_ALLOCATION_FAILED) | |
3935 | { | |
3936 | fprintf (stderr, "Memory allocation failed.\n"); | |
3937 | abort (); | |
3938 | } | |
eb383413 L |
3939 | /* Otherwise, it might not have been a mangled name. Just |
3940 | print out the original text. */ | |
3941 | else | |
3942 | fputs (dyn_string_buf (mangled), stdout); | |
3943 | ||
3944 | /* If we haven't hit EOF yet, we've read one character that | |
3945 | can't occur in a mangled name, so print it out. */ | |
3946 | if (!feof (stdin)) | |
3947 | putchar (c); | |
3948 | ||
3949 | /* Clear the candidate mangled name, to start afresh next | |
3950 | time we hit a `_Z'. */ | |
3951 | dyn_string_clear (mangled); | |
3952 | } | |
3953 | ||
3954 | dyn_string_delete (mangled); | |
3955 | dyn_string_delete (demangled); | |
3956 | } | |
3957 | else | |
3958 | /* Demangle command line arguments. */ | |
3959 | { | |
3960 | dyn_string_t result = dyn_string_new (0); | |
3961 | ||
3962 | /* Loop over command line arguments. */ | |
3963 | for (i = optind; i < argc; ++i) | |
3964 | { | |
3965 | /* Attempt to demangle. */ | |
bc9bf259 | 3966 | status = cp_demangle (argv[i], result, 0); |
eb383413 L |
3967 | |
3968 | /* If it worked, print the demangled name. */ | |
03d5f569 | 3969 | if (STATUS_NO_ERROR (status)) |
eb383413 | 3970 | printf ("%s\n", dyn_string_buf (result)); |
03d5f569 JM |
3971 | /* Abort on allocaiton failures. */ |
3972 | else if (status == STATUS_ALLOCATION_FAILED) | |
3973 | { | |
bc9bf259 | 3974 | fprintf (stderr, "Memory allocation failed.\n"); |
03d5f569 JM |
3975 | abort (); |
3976 | } | |
eb383413 L |
3977 | /* If not, print the error message to stderr instead. */ |
3978 | else | |
3979 | fprintf (stderr, "%s\n", status); | |
3980 | } | |
3981 | dyn_string_delete (result); | |
3982 | } | |
3983 | ||
3984 | return 0; | |
3985 | } | |
3986 | ||
3987 | #endif /* STANDALONE_DEMANGLER */ |