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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; | |
e61231f1 JB |
175 | |
176 | /* Set to non-zero iff this name is a constructor. The actual value | |
177 | indicates what sort of constructor this is; see demangle.h. */ | |
178 | enum gnu_v3_ctor_kinds is_constructor; | |
179 | ||
180 | /* Set to non-zero iff this name is a destructor. The actual value | |
181 | indicates what sort of destructor this is; see demangle.h. */ | |
182 | enum gnu_v3_dtor_kinds is_destructor; | |
183 | ||
eb383413 L |
184 | }; |
185 | ||
186 | typedef struct demangling_def *demangling_t; | |
187 | ||
188 | /* This type is the standard return code from most functions. Values | |
189 | other than STATUS_OK contain descriptive messages. */ | |
190 | typedef const char *status_t; | |
191 | ||
192 | /* Special values that can be used as a status_t. */ | |
03d5f569 JM |
193 | #define STATUS_OK NULL |
194 | #define STATUS_ERROR "Error." | |
195 | #define STATUS_UNIMPLEMENTED "Unimplemented." | |
196 | #define STATUS_INTERNAL_ERROR "Internal error." | |
197 | ||
198 | /* This status code indicates a failure in malloc or realloc. */ | |
74bcd529 | 199 | static const char *const status_allocation_failed = "Allocation failed."; |
03d5f569 JM |
200 | #define STATUS_ALLOCATION_FAILED status_allocation_failed |
201 | ||
202 | /* Non-zero if STATUS indicates that no error has occurred. */ | |
203 | #define STATUS_NO_ERROR(STATUS) ((STATUS) == STATUS_OK) | |
eb383413 | 204 | |
03d5f569 JM |
205 | /* Evaluate EXPR, which must produce a status_t. If the status code |
206 | indicates an error, return from the current function with that | |
207 | status code. */ | |
208 | #define RETURN_IF_ERROR(EXPR) \ | |
209 | do \ | |
210 | { \ | |
211 | status_t s = EXPR; \ | |
212 | if (!STATUS_NO_ERROR (s)) \ | |
213 | return s; \ | |
214 | } \ | |
215 | while (0) | |
216 | ||
217 | static status_t int_to_dyn_string | |
eb383413 L |
218 | PARAMS ((int, dyn_string_t)); |
219 | static string_list_t string_list_new | |
220 | PARAMS ((int)); | |
221 | static void string_list_delete | |
222 | PARAMS ((string_list_t)); | |
74bcd529 DD |
223 | static status_t result_add_separated_char |
224 | PARAMS ((demangling_t, int)); | |
03d5f569 | 225 | static status_t result_push |
eb383413 L |
226 | PARAMS ((demangling_t)); |
227 | static string_list_t result_pop | |
228 | PARAMS ((demangling_t)); | |
229 | static int substitution_start | |
230 | PARAMS ((demangling_t)); | |
03d5f569 | 231 | static status_t substitution_add |
74bcd529 | 232 | PARAMS ((demangling_t, int, int)); |
eb383413 L |
233 | static dyn_string_t substitution_get |
234 | PARAMS ((demangling_t, int, int *)); | |
235 | #ifdef CP_DEMANGLE_DEBUG | |
236 | static void substitutions_print | |
237 | PARAMS ((demangling_t, FILE *)); | |
238 | #endif | |
239 | static template_arg_list_t template_arg_list_new | |
240 | PARAMS ((void)); | |
241 | static void template_arg_list_delete | |
242 | PARAMS ((template_arg_list_t)); | |
243 | static void template_arg_list_add_arg | |
244 | PARAMS ((template_arg_list_t, string_list_t)); | |
245 | static string_list_t template_arg_list_get_arg | |
246 | PARAMS ((template_arg_list_t, int)); | |
247 | static void push_template_arg_list | |
248 | PARAMS ((demangling_t, template_arg_list_t)); | |
249 | static void pop_to_template_arg_list | |
250 | PARAMS ((demangling_t, template_arg_list_t)); | |
251 | #ifdef CP_DEMANGLE_DEBUG | |
252 | static void template_arg_list_print | |
253 | PARAMS ((template_arg_list_t, FILE *)); | |
254 | #endif | |
255 | static template_arg_list_t current_template_arg_list | |
256 | PARAMS ((demangling_t)); | |
257 | static demangling_t demangling_new | |
bc9bf259 | 258 | PARAMS ((const char *, int)); |
eb383413 L |
259 | static void demangling_delete |
260 | PARAMS ((demangling_t)); | |
261 | ||
262 | /* The last character of DS. Warning: DS is evaluated twice. */ | |
263 | #define dyn_string_last_char(DS) \ | |
264 | (dyn_string_buf (DS)[dyn_string_length (DS) - 1]) | |
265 | ||
266 | /* Append a space character (` ') to DS if it does not already end | |
03d5f569 | 267 | with one. Evaluates to 1 on success, or 0 on allocation failure. */ |
eb383413 | 268 | #define dyn_string_append_space(DS) \ |
03d5f569 JM |
269 | ((dyn_string_length (DS) > 0 \ |
270 | && dyn_string_last_char (DS) != ' ') \ | |
271 | ? dyn_string_append_char ((DS), ' ') \ | |
272 | : 1) | |
eb383413 L |
273 | |
274 | /* Returns the index of the current position in the mangled name. */ | |
275 | #define current_position(DM) ((DM)->next - (DM)->name) | |
276 | ||
277 | /* Returns the character at the current position of the mangled name. */ | |
278 | #define peek_char(DM) (*((DM)->next)) | |
279 | ||
280 | /* Returns the character one past the current position of the mangled | |
281 | name. */ | |
282 | #define peek_char_next(DM) \ | |
283 | (peek_char (DM) == '\0' ? '\0' : (*((DM)->next + 1))) | |
284 | ||
285 | /* Returns the character at the current position, and advances the | |
286 | current position to the next character. */ | |
287 | #define next_char(DM) (*((DM)->next)++) | |
288 | ||
289 | /* Returns non-zero if the current position is the end of the mangled | |
290 | name, i.e. one past the last character. */ | |
291 | #define end_of_name_p(DM) (peek_char (DM) == '\0') | |
292 | ||
293 | /* Advances the current position by one character. */ | |
294 | #define advance_char(DM) (++(DM)->next) | |
295 | ||
296 | /* Returns the string containing the current demangled result. */ | |
297 | #define result_string(DM) (&(DM)->result->string) | |
298 | ||
59666b35 DD |
299 | /* Returns the position at which new text is inserted into the |
300 | demangled result. */ | |
301 | #define result_caret_pos(DM) \ | |
302 | (result_length (DM) + \ | |
303 | ((string_list_t) result_string (DM))->caret_position) | |
304 | ||
305 | /* Adds a dyn_string_t to the demangled result. */ | |
306 | #define result_add_string(DM, STRING) \ | |
307 | (dyn_string_insert (&(DM)->result->string, \ | |
308 | result_caret_pos (DM), (STRING)) \ | |
03d5f569 | 309 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) |
eb383413 | 310 | |
59666b35 DD |
311 | /* Adds NUL-terminated string CSTR to the demangled result. */ |
312 | #define result_add(DM, CSTR) \ | |
313 | (dyn_string_insert_cstr (&(DM)->result->string, \ | |
314 | result_caret_pos (DM), (CSTR)) \ | |
03d5f569 | 315 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) |
eb383413 | 316 | |
59666b35 DD |
317 | /* Adds character CHAR to the demangled result. */ |
318 | #define result_add_char(DM, CHAR) \ | |
319 | (dyn_string_insert_char (&(DM)->result->string, \ | |
320 | result_caret_pos (DM), (CHAR)) \ | |
03d5f569 | 321 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) |
eb383413 | 322 | |
74bcd529 DD |
323 | /* Inserts a dyn_string_t to the demangled result at position POS. */ |
324 | #define result_insert_string(DM, POS, STRING) \ | |
325 | (dyn_string_insert (&(DM)->result->string, (POS), (STRING)) \ | |
326 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
327 | ||
328 | /* Inserts NUL-terminated string CSTR to the demangled result at | |
329 | position POS. */ | |
330 | #define result_insert(DM, POS, CSTR) \ | |
331 | (dyn_string_insert_cstr (&(DM)->result->string, (POS), (CSTR)) \ | |
332 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
333 | ||
334 | /* Inserts character CHAR to the demangled result at position POS. */ | |
335 | #define result_insert_char(DM, POS, CHAR) \ | |
336 | (dyn_string_insert_char (&(DM)->result->string, (POS), (CHAR)) \ | |
337 | ? STATUS_OK : STATUS_ALLOCATION_FAILED) | |
338 | ||
eb383413 L |
339 | /* The length of the current demangled result. */ |
340 | #define result_length(DM) \ | |
341 | dyn_string_length (&(DM)->result->string) | |
342 | ||
74bcd529 DD |
343 | /* Appends a (less-than, greater-than) character to the result in DM |
344 | to (open, close) a template argument or parameter list. Appends a | |
345 | space first if necessary to prevent spurious elision of angle | |
346 | brackets with the previous character. */ | |
347 | #define result_open_template_list(DM) result_add_separated_char(DM, '<') | |
348 | #define result_close_template_list(DM) result_add_separated_char(DM, '>') | |
349 | ||
03d5f569 JM |
350 | /* Appends a base 10 representation of VALUE to DS. STATUS_OK on |
351 | success. On failure, deletes DS and returns an error code. */ | |
eb383413 | 352 | |
03d5f569 | 353 | static status_t |
eb383413 L |
354 | int_to_dyn_string (value, ds) |
355 | int value; | |
356 | dyn_string_t ds; | |
357 | { | |
358 | int i; | |
359 | int mask = 1; | |
360 | ||
361 | /* Handle zero up front. */ | |
362 | if (value == 0) | |
363 | { | |
03d5f569 JM |
364 | if (!dyn_string_append_char (ds, '0')) |
365 | return STATUS_ALLOCATION_FAILED; | |
366 | return STATUS_OK; | |
eb383413 L |
367 | } |
368 | ||
369 | /* For negative numbers, emit a minus sign. */ | |
370 | if (value < 0) | |
371 | { | |
03d5f569 JM |
372 | if (!dyn_string_append_char (ds, '-')) |
373 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
374 | value = -value; |
375 | } | |
376 | ||
377 | /* Find the power of 10 of the first digit. */ | |
378 | i = value; | |
379 | while (i > 9) | |
380 | { | |
381 | mask *= 10; | |
382 | i /= 10; | |
383 | } | |
384 | ||
385 | /* Write the digits. */ | |
386 | while (mask > 0) | |
387 | { | |
388 | int digit = value / mask; | |
03d5f569 JM |
389 | |
390 | if (!dyn_string_append_char (ds, '0' + digit)) | |
391 | return STATUS_ALLOCATION_FAILED; | |
392 | ||
eb383413 L |
393 | value -= digit * mask; |
394 | mask /= 10; | |
395 | } | |
03d5f569 JM |
396 | |
397 | return STATUS_OK; | |
eb383413 L |
398 | } |
399 | ||
400 | /* Creates a new string list node. The contents of the string are | |
401 | empty, but the initial buffer allocation is LENGTH. The string | |
03d5f569 JM |
402 | list node should be deleted with string_list_delete. Returns NULL |
403 | if allocation fails. */ | |
eb383413 L |
404 | |
405 | static string_list_t | |
406 | string_list_new (length) | |
407 | int length; | |
408 | { | |
03d5f569 | 409 | string_list_t s = (string_list_t) malloc (sizeof (struct string_list_def)); |
59666b35 | 410 | s->caret_position = 0; |
03d5f569 JM |
411 | if (s == NULL) |
412 | return NULL; | |
413 | if (!dyn_string_init ((dyn_string_t) s, length)) | |
414 | return NULL; | |
eb383413 L |
415 | return s; |
416 | } | |
417 | ||
418 | /* Deletes the entire string list starting at NODE. */ | |
419 | ||
420 | static void | |
421 | string_list_delete (node) | |
422 | string_list_t node; | |
423 | { | |
424 | while (node != NULL) | |
425 | { | |
426 | string_list_t next = node->next; | |
a88e356a | 427 | dyn_string_delete ((dyn_string_t) node); |
eb383413 L |
428 | node = next; |
429 | } | |
430 | } | |
431 | ||
74bcd529 DD |
432 | /* Appends CHARACTER to the demangled result. If the current trailing |
433 | character of the result is CHARACTER, a space is inserted first. */ | |
eb383413 | 434 | |
03d5f569 | 435 | static status_t |
74bcd529 | 436 | result_add_separated_char (dm, character) |
eb383413 | 437 | demangling_t dm; |
74bcd529 | 438 | int character; |
eb383413 | 439 | { |
59666b35 DD |
440 | char *result = dyn_string_buf (result_string (dm)); |
441 | int caret_pos = result_caret_pos (dm); | |
03d5f569 | 442 | |
59666b35 DD |
443 | /* Add a space if the last character is already the character we |
444 | want to add. */ | |
445 | if (caret_pos > 0 && result[caret_pos - 1] == character) | |
446 | RETURN_IF_ERROR (result_add_char (dm, ' ')); | |
447 | /* Add the character. */ | |
448 | RETURN_IF_ERROR (result_add_char (dm, character)); | |
03d5f569 JM |
449 | |
450 | return STATUS_OK; | |
eb383413 L |
451 | } |
452 | ||
453 | /* Allocates and pushes a new string onto the demangled results stack | |
03d5f569 JM |
454 | for DM. Subsequent demangling with DM will emit to the new string. |
455 | Returns STATUS_OK on success, STATUS_ALLOCATION_FAILED on | |
456 | allocation failure. */ | |
eb383413 | 457 | |
03d5f569 | 458 | static status_t |
eb383413 L |
459 | result_push (dm) |
460 | demangling_t dm; | |
461 | { | |
462 | string_list_t new_string = string_list_new (0); | |
03d5f569 JM |
463 | if (new_string == NULL) |
464 | /* Allocation failed. */ | |
465 | return STATUS_ALLOCATION_FAILED; | |
466 | ||
467 | /* Link the new string to the front of the list of result strings. */ | |
eb383413 L |
468 | new_string->next = (string_list_t) dm->result; |
469 | dm->result = new_string; | |
03d5f569 | 470 | return STATUS_OK; |
eb383413 L |
471 | } |
472 | ||
473 | /* Removes and returns the topmost element on the demangled results | |
474 | stack for DM. The caller assumes ownership for the returned | |
475 | string. */ | |
476 | ||
477 | static string_list_t | |
478 | result_pop (dm) | |
479 | demangling_t dm; | |
480 | { | |
481 | string_list_t top = dm->result; | |
482 | dm->result = top->next; | |
483 | return top; | |
484 | } | |
485 | ||
59666b35 DD |
486 | /* Returns the current value of the caret for the result string. The |
487 | value is an offet from the end of the result string. */ | |
488 | ||
489 | static int | |
490 | result_get_caret (dm) | |
491 | demangling_t dm; | |
492 | { | |
493 | return ((string_list_t) result_string (dm))->caret_position; | |
494 | } | |
495 | ||
496 | /* Sets the value of the caret for the result string, counted as an | |
497 | offet from the end of the result string. */ | |
498 | ||
499 | static void | |
500 | result_set_caret (dm, position) | |
501 | demangling_t dm; | |
502 | int position; | |
503 | { | |
504 | ((string_list_t) result_string (dm))->caret_position = position; | |
505 | } | |
506 | ||
507 | /* Shifts the position of the next addition to the result by | |
508 | POSITION_OFFSET. A negative value shifts the caret to the left. */ | |
509 | ||
510 | static void | |
511 | result_shift_caret (dm, position_offset) | |
512 | demangling_t dm; | |
513 | int position_offset; | |
514 | { | |
515 | ((string_list_t) result_string (dm))->caret_position += position_offset; | |
516 | } | |
517 | ||
518 | /* Returns non-zero if the character that comes right before the place | |
519 | where text will be added to the result is a space. In this case, | |
520 | the caller should supress adding another space. */ | |
521 | ||
522 | static int | |
523 | result_previous_char_is_space (dm) | |
524 | demangling_t dm; | |
525 | { | |
526 | char *result = dyn_string_buf (result_string (dm)); | |
527 | int pos = result_caret_pos (dm); | |
528 | return pos > 0 && result[pos - 1] == ' '; | |
529 | } | |
530 | ||
eb383413 L |
531 | /* Returns the start position of a fragment of the demangled result |
532 | that will be a substitution candidate. Should be called at the | |
533 | start of productions that can add substitutions. */ | |
534 | ||
535 | static int | |
536 | substitution_start (dm) | |
537 | demangling_t dm; | |
538 | { | |
59666b35 | 539 | return result_caret_pos (dm); |
eb383413 L |
540 | } |
541 | ||
542 | /* Adds the suffix of the current demangled result of DM starting at | |
543 | START_POSITION as a potential substitution. If TEMPLATE_P is | |
74bcd529 | 544 | non-zero, this potential substitution is a template-id. */ |
eb383413 | 545 | |
03d5f569 | 546 | static status_t |
74bcd529 | 547 | substitution_add (dm, start_position, template_p) |
eb383413 L |
548 | demangling_t dm; |
549 | int start_position; | |
550 | int template_p; | |
eb383413 L |
551 | { |
552 | dyn_string_t result = result_string (dm); | |
553 | dyn_string_t substitution = dyn_string_new (0); | |
554 | int i; | |
555 | ||
03d5f569 JM |
556 | if (substitution == NULL) |
557 | return STATUS_ALLOCATION_FAILED; | |
558 | ||
559 | /* Extract the substring of the current demangling result that | |
560 | represents the subsitution candidate. */ | |
561 | if (!dyn_string_substring (substitution, | |
59666b35 | 562 | result, start_position, result_caret_pos (dm))) |
03d5f569 JM |
563 | { |
564 | dyn_string_delete (substitution); | |
565 | return STATUS_ALLOCATION_FAILED; | |
566 | } | |
eb383413 | 567 | |
eb383413 L |
568 | /* If there's no room for the new entry, grow the array. */ |
569 | if (dm->substitutions_allocated == dm->num_substitutions) | |
570 | { | |
03d5f569 | 571 | size_t new_array_size; |
74bcd529 DD |
572 | if (dm->substitutions_allocated > 0) |
573 | dm->substitutions_allocated *= 2; | |
574 | else | |
575 | dm->substitutions_allocated = 2; | |
03d5f569 JM |
576 | new_array_size = |
577 | sizeof (struct substitution_def) * dm->substitutions_allocated; | |
578 | ||
579 | dm->substitutions = (struct substitution_def *) | |
580 | realloc (dm->substitutions, new_array_size); | |
581 | if (dm->substitutions == NULL) | |
582 | /* Realloc failed. */ | |
583 | { | |
584 | dyn_string_delete (substitution); | |
585 | return STATUS_ALLOCATION_FAILED; | |
586 | } | |
eb383413 L |
587 | } |
588 | ||
589 | /* Add the substitution to the array. */ | |
74bcd529 | 590 | i = dm->num_substitutions++; |
eb383413 L |
591 | dm->substitutions[i].text = substitution; |
592 | dm->substitutions[i].template_p = template_p; | |
eb383413 L |
593 | |
594 | #ifdef CP_DEMANGLE_DEBUG | |
595 | substitutions_print (dm, stderr); | |
596 | #endif | |
03d5f569 JM |
597 | |
598 | return STATUS_OK; | |
eb383413 L |
599 | } |
600 | ||
601 | /* Returns the Nth-most-recent substitution. Sets *TEMPLATE_P to | |
602 | non-zero if the substitution is a template-id, zero otherwise. | |
603 | N is numbered from zero. DM retains ownership of the returned | |
604 | string. If N is negative, or equal to or greater than the current | |
605 | number of substitution candidates, returns NULL. */ | |
606 | ||
607 | static dyn_string_t | |
608 | substitution_get (dm, n, template_p) | |
609 | demangling_t dm; | |
610 | int n; | |
611 | int *template_p; | |
612 | { | |
613 | struct substitution_def *sub; | |
614 | ||
615 | /* Make sure N is in the valid range. */ | |
616 | if (n < 0 || n >= dm->num_substitutions) | |
617 | return NULL; | |
618 | ||
619 | sub = &(dm->substitutions[n]); | |
620 | *template_p = sub->template_p; | |
621 | return sub->text; | |
622 | } | |
623 | ||
624 | #ifdef CP_DEMANGLE_DEBUG | |
625 | /* Debugging routine to print the current substitutions to FP. */ | |
626 | ||
627 | static void | |
628 | substitutions_print (dm, fp) | |
629 | demangling_t dm; | |
630 | FILE *fp; | |
631 | { | |
632 | int seq_id; | |
633 | int num = dm->num_substitutions; | |
634 | ||
635 | fprintf (fp, "SUBSTITUTIONS:\n"); | |
636 | for (seq_id = -1; seq_id < num - 1; ++seq_id) | |
637 | { | |
638 | int template_p; | |
639 | dyn_string_t text = substitution_get (dm, seq_id + 1, &template_p); | |
640 | ||
641 | if (seq_id == -1) | |
642 | fprintf (fp, " S_ "); | |
643 | else | |
644 | fprintf (fp, " S%d_", seq_id); | |
645 | fprintf (fp, " %c: %s\n", template_p ? '*' : ' ', dyn_string_buf (text)); | |
646 | } | |
647 | } | |
648 | ||
649 | #endif /* CP_DEMANGLE_DEBUG */ | |
650 | ||
03d5f569 JM |
651 | /* Creates a new template argument list. Returns NULL if allocation |
652 | fails. */ | |
eb383413 L |
653 | |
654 | static template_arg_list_t | |
655 | template_arg_list_new () | |
656 | { | |
03d5f569 JM |
657 | template_arg_list_t new_list = |
658 | (template_arg_list_t) malloc (sizeof (struct template_arg_list_def)); | |
659 | if (new_list == NULL) | |
660 | return NULL; | |
eb383413 L |
661 | /* Initialize the new list to have no arguments. */ |
662 | new_list->first_argument = NULL; | |
663 | new_list->last_argument = NULL; | |
664 | /* Return the new list. */ | |
665 | return new_list; | |
666 | } | |
667 | ||
668 | /* Deletes a template argument list and the template arguments it | |
669 | contains. */ | |
670 | ||
671 | static void | |
672 | template_arg_list_delete (list) | |
673 | template_arg_list_t list; | |
674 | { | |
675 | /* If there are any arguments on LIST, delete them. */ | |
676 | if (list->first_argument != NULL) | |
677 | string_list_delete (list->first_argument); | |
678 | /* Delete LIST. */ | |
679 | free (list); | |
680 | } | |
681 | ||
682 | /* Adds ARG to the template argument list ARG_LIST. */ | |
683 | ||
684 | static void | |
685 | template_arg_list_add_arg (arg_list, arg) | |
686 | template_arg_list_t arg_list; | |
687 | string_list_t arg; | |
688 | { | |
689 | if (arg_list->first_argument == NULL) | |
690 | /* If there were no arguments before, ARG is the first one. */ | |
691 | arg_list->first_argument = arg; | |
692 | else | |
693 | /* Make ARG the last argument on the list. */ | |
694 | arg_list->last_argument->next = arg; | |
695 | /* Make ARG the last on the list. */ | |
696 | arg_list->last_argument = arg; | |
697 | arg->next = NULL; | |
698 | } | |
699 | ||
700 | /* Returns the template arugment at position INDEX in template | |
701 | argument list ARG_LIST. */ | |
702 | ||
703 | static string_list_t | |
704 | template_arg_list_get_arg (arg_list, index) | |
705 | template_arg_list_t arg_list; | |
706 | int index; | |
707 | { | |
708 | string_list_t arg = arg_list->first_argument; | |
709 | /* Scan down the list of arguments to find the one at position | |
710 | INDEX. */ | |
711 | while (index--) | |
712 | { | |
713 | arg = arg->next; | |
714 | if (arg == NULL) | |
715 | /* Ran out of arguments before INDEX hit zero. That's an | |
716 | error. */ | |
717 | return NULL; | |
718 | } | |
719 | /* Return the argument at position INDEX. */ | |
720 | return arg; | |
721 | } | |
722 | ||
723 | /* Pushes ARG_LIST onto the top of the template argument list stack. */ | |
724 | ||
725 | static void | |
726 | push_template_arg_list (dm, arg_list) | |
727 | demangling_t dm; | |
728 | template_arg_list_t arg_list; | |
729 | { | |
730 | arg_list->next = dm->template_arg_lists; | |
731 | dm->template_arg_lists = arg_list; | |
732 | #ifdef CP_DEMANGLE_DEBUG | |
733 | fprintf (stderr, " ** pushing template arg list\n"); | |
734 | template_arg_list_print (arg_list, stderr); | |
735 | #endif | |
736 | } | |
737 | ||
738 | /* Pops and deletes elements on the template argument list stack until | |
739 | arg_list is the topmost element. If arg_list is NULL, all elements | |
740 | are popped and deleted. */ | |
741 | ||
742 | static void | |
743 | pop_to_template_arg_list (dm, arg_list) | |
744 | demangling_t dm; | |
745 | template_arg_list_t arg_list; | |
746 | { | |
747 | while (dm->template_arg_lists != arg_list) | |
748 | { | |
749 | template_arg_list_t top = dm->template_arg_lists; | |
750 | /* Disconnect the topmost element from the list. */ | |
751 | dm->template_arg_lists = top->next; | |
752 | /* Delete the popped element. */ | |
753 | template_arg_list_delete (top); | |
754 | #ifdef CP_DEMANGLE_DEBUG | |
755 | fprintf (stderr, " ** removing template arg list\n"); | |
756 | #endif | |
757 | } | |
758 | } | |
759 | ||
760 | #ifdef CP_DEMANGLE_DEBUG | |
761 | ||
762 | /* Prints the contents of ARG_LIST to FP. */ | |
763 | ||
764 | static void | |
765 | template_arg_list_print (arg_list, fp) | |
766 | template_arg_list_t arg_list; | |
767 | FILE *fp; | |
768 | { | |
769 | string_list_t arg; | |
770 | int index = -1; | |
771 | ||
772 | fprintf (fp, "TEMPLATE ARGUMENT LIST:\n"); | |
773 | for (arg = arg_list->first_argument; arg != NULL; arg = arg->next) | |
774 | { | |
775 | if (index == -1) | |
776 | fprintf (fp, " T_ : "); | |
777 | else | |
778 | fprintf (fp, " T%d_ : ", index); | |
779 | ++index; | |
780 | fprintf (fp, "%s\n", dyn_string_buf ((dyn_string_t) arg)); | |
781 | } | |
782 | } | |
783 | ||
784 | #endif /* CP_DEMANGLE_DEBUG */ | |
785 | ||
786 | /* Returns the topmost element on the stack of template argument | |
787 | lists. If there is no list of template arguments, returns NULL. */ | |
788 | ||
789 | static template_arg_list_t | |
790 | current_template_arg_list (dm) | |
791 | demangling_t dm; | |
792 | { | |
793 | return dm->template_arg_lists; | |
794 | } | |
795 | ||
796 | /* Allocates a demangling_t object for demangling mangled NAME. A new | |
03d5f569 JM |
797 | result must be pushed before the returned object can be used. |
798 | Returns NULL if allocation fails. */ | |
eb383413 L |
799 | |
800 | static demangling_t | |
bc9bf259 | 801 | demangling_new (name, style) |
03d5f569 | 802 | const char *name; |
bc9bf259 | 803 | int style; |
eb383413 | 804 | { |
03d5f569 JM |
805 | demangling_t dm; |
806 | dm = (demangling_t) malloc (sizeof (struct demangling_def)); | |
807 | if (dm == NULL) | |
808 | return NULL; | |
eb383413 L |
809 | |
810 | dm->name = name; | |
811 | dm->next = name; | |
812 | dm->result = NULL; | |
eb383413 L |
813 | dm->num_substitutions = 0; |
814 | dm->substitutions_allocated = 10; | |
eb383413 | 815 | dm->template_arg_lists = NULL; |
03d5f569 JM |
816 | dm->last_source_name = dyn_string_new (0); |
817 | if (dm->last_source_name == NULL) | |
818 | return NULL; | |
819 | dm->substitutions = (struct substitution_def *) | |
820 | malloc (dm->substitutions_allocated * sizeof (struct substitution_def)); | |
821 | if (dm->substitutions == NULL) | |
822 | { | |
823 | dyn_string_delete (dm->last_source_name); | |
824 | return NULL; | |
825 | } | |
bc9bf259 | 826 | dm->style = style; |
e61231f1 JB |
827 | dm->is_constructor = 0; |
828 | dm->is_destructor = 0; | |
eb383413 L |
829 | |
830 | return dm; | |
831 | } | |
832 | ||
833 | /* Deallocates a demangling_t object and all memory associated with | |
834 | it. */ | |
835 | ||
836 | static void | |
837 | demangling_delete (dm) | |
838 | demangling_t dm; | |
839 | { | |
840 | int i; | |
841 | template_arg_list_t arg_list = dm->template_arg_lists; | |
842 | ||
843 | /* Delete the stack of template argument lists. */ | |
844 | while (arg_list != NULL) | |
845 | { | |
846 | template_arg_list_t next = arg_list->next; | |
847 | template_arg_list_delete (arg_list); | |
848 | arg_list = next; | |
849 | } | |
850 | /* Delete the list of substitutions. */ | |
851 | for (i = dm->num_substitutions; --i >= 0; ) | |
852 | dyn_string_delete (dm->substitutions[i].text); | |
853 | free (dm->substitutions); | |
854 | /* Delete the demangled result. */ | |
855 | string_list_delete (dm->result); | |
856 | /* Delete the stored identifier name. */ | |
857 | dyn_string_delete (dm->last_source_name); | |
858 | /* Delete the context object itself. */ | |
859 | free (dm); | |
860 | } | |
861 | ||
862 | /* These functions demangle an alternative of the corresponding | |
863 | production in the mangling spec. The first argument of each is a | |
864 | demangling context structure for the current demangling | |
865 | operation. Most emit demangled text directly to the topmost result | |
866 | string on the result string stack in the demangling context | |
867 | structure. */ | |
868 | ||
869 | static status_t demangle_char | |
870 | PARAMS ((demangling_t, int)); | |
871 | static status_t demangle_mangled_name | |
872 | PARAMS ((demangling_t)); | |
873 | static status_t demangle_encoding | |
874 | PARAMS ((demangling_t)); | |
875 | static status_t demangle_name | |
876 | PARAMS ((demangling_t, int *)); | |
877 | static status_t demangle_nested_name | |
878 | PARAMS ((demangling_t, int *)); | |
879 | static status_t demangle_prefix | |
880 | PARAMS ((demangling_t, int *)); | |
881 | static status_t demangle_unqualified_name | |
74bcd529 | 882 | PARAMS ((demangling_t, int *)); |
eb383413 L |
883 | static status_t demangle_source_name |
884 | PARAMS ((demangling_t)); | |
885 | static status_t demangle_number | |
886 | PARAMS ((demangling_t, int *, int, int)); | |
887 | static status_t demangle_number_literally | |
888 | PARAMS ((demangling_t, dyn_string_t, int, int)); | |
889 | static status_t demangle_identifier | |
890 | PARAMS ((demangling_t, int, dyn_string_t)); | |
891 | static status_t demangle_operator_name | |
892 | PARAMS ((demangling_t, int, int *)); | |
74bcd529 DD |
893 | static status_t demangle_nv_offset |
894 | PARAMS ((demangling_t)); | |
895 | static status_t demangle_v_offset | |
896 | PARAMS ((demangling_t)); | |
897 | static status_t demangle_call_offset | |
898 | PARAMS ((demangling_t)); | |
eb383413 L |
899 | static status_t demangle_special_name |
900 | PARAMS ((demangling_t)); | |
901 | static status_t demangle_ctor_dtor_name | |
902 | PARAMS ((demangling_t)); | |
903 | static status_t demangle_type_ptr | |
74bcd529 | 904 | PARAMS ((demangling_t, int *, int)); |
eb383413 L |
905 | static status_t demangle_type |
906 | PARAMS ((demangling_t)); | |
907 | static status_t demangle_CV_qualifiers | |
908 | PARAMS ((demangling_t, dyn_string_t)); | |
909 | static status_t demangle_builtin_type | |
910 | PARAMS ((demangling_t)); | |
911 | static status_t demangle_function_type | |
74bcd529 | 912 | PARAMS ((demangling_t, int *)); |
eb383413 | 913 | static status_t demangle_bare_function_type |
74bcd529 | 914 | PARAMS ((demangling_t, int *)); |
eb383413 L |
915 | static status_t demangle_class_enum_type |
916 | PARAMS ((demangling_t, int *)); | |
917 | static status_t demangle_array_type | |
59666b35 | 918 | PARAMS ((demangling_t, int *)); |
eb383413 | 919 | static status_t demangle_template_param |
74bcd529 | 920 | PARAMS ((demangling_t)); |
eb383413 L |
921 | static status_t demangle_template_args |
922 | PARAMS ((demangling_t)); | |
923 | static status_t demangle_literal | |
924 | PARAMS ((demangling_t)); | |
925 | static status_t demangle_template_arg | |
926 | PARAMS ((demangling_t)); | |
927 | static status_t demangle_expression | |
928 | PARAMS ((demangling_t)); | |
929 | static status_t demangle_scope_expression | |
930 | PARAMS ((demangling_t)); | |
931 | static status_t demangle_expr_primary | |
932 | PARAMS ((demangling_t)); | |
933 | static status_t demangle_substitution | |
74bcd529 | 934 | PARAMS ((demangling_t, int *)); |
eb383413 L |
935 | static status_t demangle_local_name |
936 | PARAMS ((demangling_t)); | |
937 | static status_t demangle_discriminator | |
938 | PARAMS ((demangling_t, int)); | |
939 | static status_t cp_demangle | |
bc9bf259 | 940 | PARAMS ((const char *, dyn_string_t, int)); |
74bcd529 | 941 | #ifdef IN_LIBGCC2 |
03d5f569 JM |
942 | static status_t cp_demangle_type |
943 | PARAMS ((const char*, dyn_string_t)); | |
74bcd529 | 944 | #endif |
eb383413 L |
945 | |
946 | /* When passed to demangle_bare_function_type, indicates that the | |
947 | function's return type is not encoded before its parameter types. */ | |
74bcd529 | 948 | #define BFT_NO_RETURN_TYPE NULL |
eb383413 L |
949 | |
950 | /* Check that the next character is C. If so, consume it. If not, | |
951 | return an error. */ | |
952 | ||
953 | static status_t | |
954 | demangle_char (dm, c) | |
955 | demangling_t dm; | |
956 | int c; | |
957 | { | |
958 | static char *error_message = NULL; | |
959 | ||
960 | if (peek_char (dm) == c) | |
961 | { | |
962 | advance_char (dm); | |
963 | return STATUS_OK; | |
964 | } | |
965 | else | |
966 | { | |
967 | if (error_message == NULL) | |
968 | error_message = strdup ("Expected ?"); | |
969 | error_message[9] = c; | |
970 | return error_message; | |
971 | } | |
972 | } | |
973 | ||
974 | /* Demangles and emits a <mangled-name>. | |
975 | ||
976 | <mangled-name> ::= _Z <encoding> */ | |
977 | ||
978 | static status_t | |
979 | demangle_mangled_name (dm) | |
980 | demangling_t dm; | |
981 | { | |
982 | DEMANGLE_TRACE ("mangled-name", dm); | |
983 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
984 | RETURN_IF_ERROR (demangle_char (dm, 'Z')); | |
985 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
986 | return STATUS_OK; | |
987 | } | |
988 | ||
989 | /* Demangles and emits an <encoding>. | |
990 | ||
991 | <encoding> ::= <function name> <bare-function-type> | |
992 | ::= <data name> | |
03d5f569 | 993 | ::= <special-name> */ |
eb383413 L |
994 | |
995 | static status_t | |
996 | demangle_encoding (dm) | |
997 | demangling_t dm; | |
998 | { | |
74bcd529 | 999 | int encode_return_type; |
eb383413 | 1000 | int start_position; |
eb383413 L |
1001 | template_arg_list_t old_arg_list = current_template_arg_list (dm); |
1002 | char peek = peek_char (dm); | |
1003 | ||
1004 | DEMANGLE_TRACE ("encoding", dm); | |
1005 | ||
1006 | /* Remember where the name starts. If it turns out to be a template | |
1007 | function, we'll have to insert the return type here. */ | |
59666b35 | 1008 | start_position = result_caret_pos (dm); |
eb383413 | 1009 | |
03d5f569 | 1010 | if (peek == 'G' || peek == 'T') |
eb383413 L |
1011 | RETURN_IF_ERROR (demangle_special_name (dm)); |
1012 | else | |
1013 | { | |
1014 | /* Now demangle the name. */ | |
74bcd529 | 1015 | RETURN_IF_ERROR (demangle_name (dm, &encode_return_type)); |
eb383413 L |
1016 | |
1017 | /* If there's anything left, the name was a function name, with | |
59666b35 | 1018 | maybe its return type, and its parameter types, following. */ |
eb383413 L |
1019 | if (!end_of_name_p (dm) |
1020 | && peek_char (dm) != 'E') | |
1021 | { | |
74bcd529 | 1022 | if (encode_return_type) |
eb383413 L |
1023 | /* Template functions have their return type encoded. The |
1024 | return type should be inserted at start_position. */ | |
1025 | RETURN_IF_ERROR | |
74bcd529 | 1026 | (demangle_bare_function_type (dm, &start_position)); |
eb383413 L |
1027 | else |
1028 | /* Non-template functions don't have their return type | |
1029 | encoded. */ | |
1030 | RETURN_IF_ERROR | |
1031 | (demangle_bare_function_type (dm, BFT_NO_RETURN_TYPE)); | |
1032 | } | |
eb383413 L |
1033 | } |
1034 | ||
1035 | /* Pop off template argument lists that were built during the | |
1036 | mangling of this name, to restore the old template context. */ | |
1037 | pop_to_template_arg_list (dm, old_arg_list); | |
1038 | ||
1039 | return STATUS_OK; | |
1040 | } | |
1041 | ||
1042 | /* Demangles and emits a <name>. | |
1043 | ||
1044 | <name> ::= <unscoped-name> | |
1045 | ::= <unscoped-template-name> <template-args> | |
1046 | ::= <nested-name> | |
1047 | ::= <local-name> | |
1048 | ||
1049 | <unscoped-name> ::= <unqualified-name> | |
1050 | ::= St <unqualified-name> # ::std:: | |
1051 | ||
1052 | <unscoped-template-name> | |
1053 | ::= <unscoped-name> | |
1054 | ::= <substitution> */ | |
1055 | ||
1056 | static status_t | |
74bcd529 | 1057 | demangle_name (dm, encode_return_type) |
eb383413 | 1058 | demangling_t dm; |
74bcd529 | 1059 | int *encode_return_type; |
eb383413 | 1060 | { |
eb383413 | 1061 | int start = substitution_start (dm); |
74bcd529 DD |
1062 | char peek = peek_char (dm); |
1063 | int is_std_substitution = 0; | |
1064 | ||
1065 | /* Generally, the return type is encoded if the function is a | |
1066 | template-id, and suppressed otherwise. There are a few cases, | |
1067 | though, in which the return type is not encoded even for a | |
1068 | templated function. In these cases, this flag is set. */ | |
1069 | int suppress_return_type = 0; | |
eb383413 L |
1070 | |
1071 | DEMANGLE_TRACE ("name", dm); | |
1072 | ||
74bcd529 | 1073 | switch (peek) |
eb383413 L |
1074 | { |
1075 | case 'N': | |
1076 | /* This is a <nested-name>. */ | |
74bcd529 | 1077 | RETURN_IF_ERROR (demangle_nested_name (dm, encode_return_type)); |
eb383413 L |
1078 | break; |
1079 | ||
1080 | case 'Z': | |
1081 | RETURN_IF_ERROR (demangle_local_name (dm)); | |
74bcd529 | 1082 | *encode_return_type = 0; |
eb383413 L |
1083 | break; |
1084 | ||
1085 | case 'S': | |
1086 | /* The `St' substitution allows a name nested in std:: to appear | |
03d5f569 | 1087 | without being enclosed in a nested name. */ |
eb383413 L |
1088 | if (peek_char_next (dm) == 't') |
1089 | { | |
1090 | (void) next_char (dm); | |
1091 | (void) next_char (dm); | |
59666b35 | 1092 | RETURN_IF_ERROR (result_add (dm, "std::")); |
74bcd529 DD |
1093 | RETURN_IF_ERROR |
1094 | (demangle_unqualified_name (dm, &suppress_return_type)); | |
1095 | is_std_substitution = 1; | |
eb383413 L |
1096 | } |
1097 | else | |
74bcd529 | 1098 | RETURN_IF_ERROR (demangle_substitution (dm, encode_return_type)); |
03d5f569 JM |
1099 | /* Check if a template argument list immediately follows. |
1100 | If so, then we just demangled an <unqualified-template-name>. */ | |
1101 | if (peek_char (dm) == 'I') | |
1102 | { | |
74bcd529 DD |
1103 | /* A template name of the form std::<unqualified-name> is a |
1104 | substitution candidate. */ | |
1105 | if (is_std_substitution) | |
1106 | RETURN_IF_ERROR (substitution_add (dm, start, 0)); | |
1107 | /* Demangle the <template-args> here. */ | |
03d5f569 | 1108 | RETURN_IF_ERROR (demangle_template_args (dm)); |
74bcd529 | 1109 | *encode_return_type = !suppress_return_type; |
03d5f569 | 1110 | } |
74bcd529 DD |
1111 | else |
1112 | *encode_return_type = 0; | |
1113 | ||
eb383413 L |
1114 | break; |
1115 | ||
1116 | default: | |
1117 | /* This is an <unscoped-name> or <unscoped-template-name>. */ | |
74bcd529 | 1118 | RETURN_IF_ERROR (demangle_unqualified_name (dm, &suppress_return_type)); |
eb383413 L |
1119 | |
1120 | /* If the <unqualified-name> is followed by template args, this | |
1121 | is an <unscoped-template-name>. */ | |
1122 | if (peek_char (dm) == 'I') | |
1123 | { | |
1124 | /* Add a substitution for the unqualified template name. */ | |
74bcd529 | 1125 | RETURN_IF_ERROR (substitution_add (dm, start, 0)); |
eb383413 L |
1126 | |
1127 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
74bcd529 | 1128 | *encode_return_type = !suppress_return_type; |
eb383413 L |
1129 | } |
1130 | else | |
74bcd529 | 1131 | *encode_return_type = 0; |
eb383413 L |
1132 | |
1133 | break; | |
1134 | } | |
1135 | ||
1136 | return STATUS_OK; | |
1137 | } | |
1138 | ||
1139 | /* Demangles and emits a <nested-name>. | |
1140 | ||
74bcd529 | 1141 | <nested-name> ::= N [<CV-qualifiers>] <prefix> <unqulified-name> E */ |
eb383413 L |
1142 | |
1143 | static status_t | |
74bcd529 | 1144 | demangle_nested_name (dm, encode_return_type) |
eb383413 | 1145 | demangling_t dm; |
74bcd529 | 1146 | int *encode_return_type; |
eb383413 L |
1147 | { |
1148 | char peek; | |
1149 | ||
1150 | DEMANGLE_TRACE ("nested-name", dm); | |
1151 | ||
1152 | RETURN_IF_ERROR (demangle_char (dm, 'N')); | |
1153 | ||
1154 | peek = peek_char (dm); | |
1155 | if (peek == 'r' || peek == 'V' || peek == 'K') | |
1156 | { | |
59666b35 | 1157 | dyn_string_t cv_qualifiers; |
03d5f569 JM |
1158 | status_t status; |
1159 | ||
59666b35 DD |
1160 | /* Snarf up CV qualifiers. */ |
1161 | cv_qualifiers = dyn_string_new (24); | |
03d5f569 JM |
1162 | if (cv_qualifiers == NULL) |
1163 | return STATUS_ALLOCATION_FAILED; | |
eb383413 | 1164 | demangle_CV_qualifiers (dm, cv_qualifiers); |
59666b35 DD |
1165 | |
1166 | /* Emit them, preceded by a space. */ | |
1167 | status = result_add_char (dm, ' '); | |
1168 | if (STATUS_NO_ERROR (status)) | |
1169 | status = result_add_string (dm, cv_qualifiers); | |
1170 | /* The CV qualifiers that occur in a <nested-name> will be | |
1171 | qualifiers for member functions. These are placed at the end | |
1172 | of the function. Therefore, shift the caret to the left by | |
1173 | the length of the qualifiers, so other text is inserted | |
1174 | before them and they stay at the end. */ | |
1175 | result_shift_caret (dm, -dyn_string_length (cv_qualifiers) - 1); | |
1176 | /* Clean up. */ | |
eb383413 | 1177 | dyn_string_delete (cv_qualifiers); |
03d5f569 | 1178 | RETURN_IF_ERROR (status); |
eb383413 | 1179 | } |
59666b35 | 1180 | |
74bcd529 DD |
1181 | RETURN_IF_ERROR (demangle_prefix (dm, encode_return_type)); |
1182 | /* No need to demangle the final <unqualified-name>; demangle_prefix | |
1183 | will handle it. */ | |
eb383413 L |
1184 | RETURN_IF_ERROR (demangle_char (dm, 'E')); |
1185 | ||
1186 | return STATUS_OK; | |
1187 | } | |
1188 | ||
1189 | /* Demangles and emits a <prefix>. | |
1190 | ||
74bcd529 | 1191 | <prefix> ::= <prefix> <unqualified-name> |
eb383413 L |
1192 | ::= <template-prefix> <template-args> |
1193 | ::= # empty | |
1194 | ::= <substitution> | |
1195 | ||
1196 | <template-prefix> ::= <prefix> | |
74bcd529 | 1197 | ::= <substitution> */ |
eb383413 L |
1198 | |
1199 | static status_t | |
74bcd529 | 1200 | demangle_prefix (dm, encode_return_type) |
eb383413 | 1201 | demangling_t dm; |
74bcd529 | 1202 | int *encode_return_type; |
eb383413 L |
1203 | { |
1204 | int start = substitution_start (dm); | |
1205 | int nested = 0; | |
1206 | ||
74bcd529 DD |
1207 | /* ENCODE_RETURN_TYPE is updated as we decend the nesting chain. |
1208 | After <template-args>, it is set to non-zero; after everything | |
1209 | else it is set to zero. */ | |
1210 | ||
1211 | /* Generally, the return type is encoded if the function is a | |
1212 | template-id, and suppressed otherwise. There are a few cases, | |
1213 | though, in which the return type is not encoded even for a | |
1214 | templated function. In these cases, this flag is set. */ | |
1215 | int suppress_return_type = 0; | |
eb383413 L |
1216 | |
1217 | DEMANGLE_TRACE ("prefix", dm); | |
1218 | ||
1219 | while (1) | |
1220 | { | |
1221 | char peek; | |
eb383413 L |
1222 | |
1223 | if (end_of_name_p (dm)) | |
1224 | return "Unexpected end of name in <compound-name>."; | |
1225 | ||
1226 | peek = peek_char (dm); | |
1227 | ||
74bcd529 DD |
1228 | /* We'll initialize suppress_return_type to false, and set it to true |
1229 | if we end up demangling a constructor name. However, make | |
1230 | sure we're not actually about to demangle template arguments | |
1231 | -- if so, this is the <template-args> following a | |
1232 | <template-prefix>, so we'll want the previous flag value | |
1233 | around. */ | |
1234 | if (peek != 'I') | |
1235 | suppress_return_type = 0; | |
1236 | ||
03d5f569 | 1237 | if (IS_DIGIT ((unsigned char) peek) |
eb383413 L |
1238 | || (peek >= 'a' && peek <= 'z') |
1239 | || peek == 'C' || peek == 'D' | |
1240 | || peek == 'S') | |
1241 | { | |
1242 | /* We have another level of scope qualification. */ | |
1243 | if (nested) | |
bc9bf259 | 1244 | RETURN_IF_ERROR (result_add (dm, NAMESPACE_SEPARATOR)); |
eb383413 L |
1245 | else |
1246 | nested = 1; | |
1247 | ||
1248 | if (peek == 'S') | |
1249 | /* The substitution determines whether this is a | |
74bcd529 DD |
1250 | template-id. */ |
1251 | RETURN_IF_ERROR (demangle_substitution (dm, encode_return_type)); | |
eb383413 L |
1252 | else |
1253 | { | |
74bcd529 DD |
1254 | /* It's just a name. */ |
1255 | RETURN_IF_ERROR | |
1256 | (demangle_unqualified_name (dm, &suppress_return_type)); | |
1257 | *encode_return_type = 0; | |
eb383413 L |
1258 | } |
1259 | } | |
1260 | else if (peek == 'Z') | |
1261 | RETURN_IF_ERROR (demangle_local_name (dm)); | |
1262 | else if (peek == 'I') | |
1263 | { | |
eb383413 | 1264 | RETURN_IF_ERROR (demangle_template_args (dm)); |
74bcd529 DD |
1265 | |
1266 | /* Now we want to indicate to the caller that we've | |
1267 | demangled template arguments, thus the prefix was a | |
1268 | <template-prefix>. That's so that the caller knows to | |
1269 | demangle the function's return type, if this turns out to | |
1270 | be a function name. But, if it's a member template | |
1271 | constructor or a templated conversion operator, report it | |
1272 | as untemplated. Those never get encoded return types. */ | |
1273 | *encode_return_type = !suppress_return_type; | |
eb383413 L |
1274 | } |
1275 | else if (peek == 'E') | |
1276 | /* All done. */ | |
1277 | return STATUS_OK; | |
1278 | else | |
1279 | return "Unexpected character in <compound-name>."; | |
1280 | ||
74bcd529 DD |
1281 | if (peek != 'S' |
1282 | && peek_char (dm) != 'E') | |
1283 | /* Add a new substitution for the prefix thus far. */ | |
1284 | RETURN_IF_ERROR (substitution_add (dm, start, *encode_return_type)); | |
eb383413 L |
1285 | } |
1286 | } | |
1287 | ||
74bcd529 DD |
1288 | /* Demangles and emits an <unqualified-name>. If this |
1289 | <unqualified-name> is for a special function type that should never | |
1290 | have its return type encoded (particularly, a constructor or | |
1291 | conversion operator), *SUPPRESS_RETURN_TYPE is set to 1; otherwise, | |
1292 | it is set to zero. | |
eb383413 L |
1293 | |
1294 | <unqualified-name> ::= <operator-name> | |
1295 | ::= <special-name> | |
1296 | ::= <source-name> */ | |
1297 | ||
1298 | static status_t | |
74bcd529 | 1299 | demangle_unqualified_name (dm, suppress_return_type) |
eb383413 | 1300 | demangling_t dm; |
74bcd529 | 1301 | int *suppress_return_type; |
eb383413 L |
1302 | { |
1303 | char peek = peek_char (dm); | |
1304 | ||
1305 | DEMANGLE_TRACE ("unqualified-name", dm); | |
1306 | ||
74bcd529 DD |
1307 | /* By default, don't force suppression of the return type (though |
1308 | non-template functions still don't get a return type encoded). */ | |
1309 | *suppress_return_type = 0; | |
1310 | ||
03d5f569 | 1311 | if (IS_DIGIT ((unsigned char) peek)) |
eb383413 L |
1312 | RETURN_IF_ERROR (demangle_source_name (dm)); |
1313 | else if (peek >= 'a' && peek <= 'z') | |
1314 | { | |
1315 | int num_args; | |
74bcd529 DD |
1316 | |
1317 | /* Conversion operators never have a return type encoded. */ | |
1318 | if (peek == 'c' && peek_char_next (dm) == 'v') | |
1319 | *suppress_return_type = 1; | |
1320 | ||
eb383413 L |
1321 | RETURN_IF_ERROR (demangle_operator_name (dm, 0, &num_args)); |
1322 | } | |
1323 | else if (peek == 'C' || peek == 'D') | |
74bcd529 DD |
1324 | { |
1325 | /* Constructors never have a return type encoded. */ | |
1326 | if (peek == 'C') | |
1327 | *suppress_return_type = 1; | |
1328 | ||
1329 | RETURN_IF_ERROR (demangle_ctor_dtor_name (dm)); | |
1330 | } | |
eb383413 L |
1331 | else |
1332 | return "Unexpected character in <unqualified-name>."; | |
1333 | ||
1334 | return STATUS_OK; | |
1335 | } | |
1336 | ||
1337 | /* Demangles and emits <source-name>. | |
1338 | ||
1339 | <source-name> ::= <length number> <identifier> */ | |
1340 | ||
1341 | static status_t | |
1342 | demangle_source_name (dm) | |
1343 | demangling_t dm; | |
1344 | { | |
1345 | int length; | |
1346 | ||
1347 | DEMANGLE_TRACE ("source-name", dm); | |
1348 | ||
1349 | /* Decode the length of the identifier. */ | |
1350 | RETURN_IF_ERROR (demangle_number (dm, &length, 10, 0)); | |
1351 | if (length == 0) | |
1352 | return "Zero length in <source-name>."; | |
1353 | ||
1354 | /* Now the identifier itself. It's placed into last_source_name, | |
1355 | where it can be used to build a constructor or destructor name. */ | |
1356 | RETURN_IF_ERROR (demangle_identifier (dm, length, | |
1357 | dm->last_source_name)); | |
1358 | ||
1359 | /* Emit it. */ | |
59666b35 | 1360 | RETURN_IF_ERROR (result_add_string (dm, dm->last_source_name)); |
eb383413 L |
1361 | |
1362 | return STATUS_OK; | |
1363 | } | |
1364 | ||
1365 | /* Demangles a number, either a <number> or a <positive-number> at the | |
1366 | current position, consuming all consecutive digit characters. Sets | |
1367 | *VALUE to the resulting numberand returns STATUS_OK. The number is | |
1368 | interpreted as BASE, which must be either 10 or 36. If IS_SIGNED | |
1369 | is non-zero, negative numbers -- prefixed with `n' -- are accepted. | |
1370 | ||
1371 | <number> ::= [n] <positive-number> | |
1372 | ||
1373 | <positive-number> ::= <decimal integer> */ | |
1374 | ||
1375 | static status_t | |
1376 | demangle_number (dm, value, base, is_signed) | |
1377 | demangling_t dm; | |
1378 | int *value; | |
1379 | int base; | |
1380 | int is_signed; | |
1381 | { | |
1382 | dyn_string_t number = dyn_string_new (10); | |
1383 | ||
1384 | DEMANGLE_TRACE ("number", dm); | |
1385 | ||
03d5f569 JM |
1386 | if (number == NULL) |
1387 | return STATUS_ALLOCATION_FAILED; | |
1388 | ||
eb383413 L |
1389 | demangle_number_literally (dm, number, base, is_signed); |
1390 | *value = strtol (dyn_string_buf (number), NULL, base); | |
1391 | dyn_string_delete (number); | |
1392 | ||
1393 | return STATUS_OK; | |
1394 | } | |
1395 | ||
1396 | /* Demangles a number at the current position. The digits (and minus | |
1397 | sign, if present) that make up the number are appended to STR. | |
1398 | Only base-BASE digits are accepted; BASE must be either 10 or 36. | |
1399 | If IS_SIGNED, negative numbers -- prefixed with `n' -- are | |
1400 | accepted. Does not consume a trailing underscore or other | |
1401 | terminating character. */ | |
1402 | ||
1403 | static status_t | |
1404 | demangle_number_literally (dm, str, base, is_signed) | |
1405 | demangling_t dm; | |
1406 | dyn_string_t str; | |
1407 | int base; | |
1408 | int is_signed; | |
1409 | { | |
1410 | DEMANGLE_TRACE ("number*", dm); | |
1411 | ||
1412 | if (base != 10 && base != 36) | |
1413 | return STATUS_INTERNAL_ERROR; | |
1414 | ||
1415 | /* An `n' denotes a negative number. */ | |
1416 | if (is_signed && peek_char (dm) == 'n') | |
1417 | { | |
1418 | /* Skip past the n. */ | |
1419 | advance_char (dm); | |
1420 | /* The normal way to write a negative number is with a minus | |
1421 | sign. */ | |
03d5f569 JM |
1422 | if (!dyn_string_append_char (str, '-')) |
1423 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
1424 | } |
1425 | ||
1426 | /* Loop until we hit a non-digit. */ | |
1427 | while (1) | |
1428 | { | |
1429 | char peek = peek_char (dm); | |
03d5f569 | 1430 | if (IS_DIGIT ((unsigned char) peek) |
eb383413 | 1431 | || (base == 36 && peek >= 'A' && peek <= 'Z')) |
03d5f569 JM |
1432 | { |
1433 | /* Accumulate digits. */ | |
1434 | if (!dyn_string_append_char (str, next_char (dm))) | |
1435 | return STATUS_ALLOCATION_FAILED; | |
1436 | } | |
eb383413 L |
1437 | else |
1438 | /* Not a digit? All done. */ | |
1439 | break; | |
1440 | } | |
1441 | ||
1442 | return STATUS_OK; | |
1443 | } | |
1444 | ||
1445 | /* Demangles an identifier at the current position of LENGTH | |
1446 | characters and places it in IDENTIFIER. */ | |
1447 | ||
1448 | static status_t | |
1449 | demangle_identifier (dm, length, identifier) | |
1450 | demangling_t dm; | |
1451 | int length; | |
1452 | dyn_string_t identifier; | |
1453 | { | |
1454 | DEMANGLE_TRACE ("identifier", dm); | |
1455 | ||
1456 | dyn_string_clear (identifier); | |
03d5f569 JM |
1457 | if (!dyn_string_resize (identifier, length)) |
1458 | return STATUS_ALLOCATION_FAILED; | |
1459 | ||
eb383413 L |
1460 | while (length-- > 0) |
1461 | { | |
1462 | if (end_of_name_p (dm)) | |
1463 | return "Unexpected end of name in <identifier>."; | |
03d5f569 JM |
1464 | if (!dyn_string_append_char (identifier, next_char (dm))) |
1465 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
1466 | } |
1467 | ||
74bcd529 DD |
1468 | /* GCC encodes anonymous namespaces using a `_GLOBAL_[_.$]N.' |
1469 | followed by the source file name and some random characters. | |
1470 | Unless we're in strict mode, decipher these names appropriately. */ | |
1471 | if (!flag_strict) | |
1472 | { | |
1473 | char *name = dyn_string_buf (identifier); | |
1474 | int prefix_length = strlen (ANONYMOUS_NAMESPACE_PREFIX); | |
1475 | ||
1476 | /* Compare the first, fixed part. */ | |
1477 | if (strncmp (name, ANONYMOUS_NAMESPACE_PREFIX, prefix_length) == 0) | |
1478 | { | |
1479 | name += prefix_length; | |
1480 | /* The next character might be a period, an underscore, or | |
1481 | dollar sign, depending on the target architecture's | |
1482 | assembler's capabilities. After that comes an `N'. */ | |
1483 | if ((*name == '.' || *name == '_' || *name == '$') | |
1484 | && *(name + 1) == 'N') | |
1485 | /* This looks like the anonymous namespace identifier. | |
1486 | Replace it with something comprehensible. */ | |
1487 | dyn_string_copy_cstr (identifier, "(anonymous namespace)"); | |
1488 | } | |
1489 | } | |
1490 | ||
eb383413 L |
1491 | return STATUS_OK; |
1492 | } | |
1493 | ||
1494 | /* Demangles and emits an <operator-name>. If SHORT_NAME is non-zero, | |
1495 | the short form is emitted; otherwise the full source form | |
1496 | (`operator +' etc.) is emitted. *NUM_ARGS is set to the number of | |
1497 | operands that the operator takes. | |
1498 | ||
1499 | <operator-name> | |
1500 | ::= nw # new | |
1501 | ::= na # new[] | |
1502 | ::= dl # delete | |
1503 | ::= da # delete[] | |
1504 | ::= ps # + (unary) | |
1505 | ::= ng # - (unary) | |
1506 | ::= ad # & (unary) | |
1507 | ::= de # * (unary) | |
1508 | ::= co # ~ | |
1509 | ::= pl # + | |
1510 | ::= mi # - | |
1511 | ::= ml # * | |
1512 | ::= dv # / | |
1513 | ::= rm # % | |
1514 | ::= an # & | |
1515 | ::= or # | | |
1516 | ::= eo # ^ | |
1517 | ::= aS # = | |
1518 | ::= pL # += | |
1519 | ::= mI # -= | |
1520 | ::= mL # *= | |
1521 | ::= dV # /= | |
1522 | ::= rM # %= | |
1523 | ::= aN # &= | |
1524 | ::= oR # |= | |
1525 | ::= eO # ^= | |
1526 | ::= ls # << | |
1527 | ::= rs # >> | |
1528 | ::= lS # <<= | |
1529 | ::= rS # >>= | |
1530 | ::= eq # == | |
1531 | ::= ne # != | |
1532 | ::= lt # < | |
1533 | ::= gt # > | |
1534 | ::= le # <= | |
1535 | ::= ge # >= | |
1536 | ::= nt # ! | |
1537 | ::= aa # && | |
1538 | ::= oo # || | |
1539 | ::= pp # ++ | |
1540 | ::= mm # -- | |
1541 | ::= cm # , | |
1542 | ::= pm # ->* | |
1543 | ::= pt # -> | |
1544 | ::= cl # () | |
1545 | ::= ix # [] | |
1546 | ::= qu # ? | |
1547 | ::= sz # sizeof | |
1548 | ::= cv <type> # cast | |
74bcd529 | 1549 | ::= v [0-9] <source-name> # vendor extended operator */ |
eb383413 L |
1550 | |
1551 | static status_t | |
1552 | demangle_operator_name (dm, short_name, num_args) | |
1553 | demangling_t dm; | |
1554 | int short_name; | |
1555 | int *num_args; | |
1556 | { | |
1557 | struct operator_code | |
1558 | { | |
1559 | /* The mangled code for this operator. */ | |
1560 | const char *code; | |
1561 | /* The source name of this operator. */ | |
1562 | const char *name; | |
1563 | /* The number of arguments this operator takes. */ | |
1564 | int num_args; | |
1565 | }; | |
1566 | ||
1567 | static const struct operator_code operators[] = | |
1568 | { | |
1569 | { "aN", "&=" , 2 }, | |
1570 | { "aS", "=" , 2 }, | |
1571 | { "aa", "&&" , 2 }, | |
1572 | { "ad", "&" , 1 }, | |
1573 | { "an", "&" , 2 }, | |
1574 | { "cl", "()" , 0 }, | |
1575 | { "cm", "," , 2 }, | |
1576 | { "co", "~" , 1 }, | |
1577 | { "dV", "/=" , 2 }, | |
1578 | { "da", " delete[]", 1 }, | |
1579 | { "de", "*" , 1 }, | |
1580 | { "dl", " delete" , 1 }, | |
1581 | { "dv", "/" , 2 }, | |
1582 | { "eO", "^=" , 2 }, | |
1583 | { "eo", "^" , 2 }, | |
1584 | { "eq", "==" , 2 }, | |
1585 | { "ge", ">=" , 2 }, | |
1586 | { "gt", ">" , 2 }, | |
1587 | { "ix", "[]" , 2 }, | |
1588 | { "lS", "<<=" , 2 }, | |
1589 | { "le", "<=" , 2 }, | |
1590 | { "ls", "<<" , 2 }, | |
1591 | { "lt", "<" , 2 }, | |
1592 | { "mI", "-=" , 2 }, | |
1593 | { "mL", "*=" , 2 }, | |
1594 | { "mi", "-" , 2 }, | |
1595 | { "ml", "*" , 2 }, | |
1596 | { "mm", "--" , 1 }, | |
1597 | { "na", " new[]" , 1 }, | |
1598 | { "ne", "!=" , 2 }, | |
1599 | { "ng", "-" , 1 }, | |
1600 | { "nt", "!" , 1 }, | |
1601 | { "nw", " new" , 1 }, | |
1602 | { "oR", "|=" , 2 }, | |
1603 | { "oo", "||" , 2 }, | |
1604 | { "or", "|" , 2 }, | |
1605 | { "pL", "+=" , 2 }, | |
1606 | { "pl", "+" , 2 }, | |
1607 | { "pm", "->*" , 2 }, | |
1608 | { "pp", "++" , 1 }, | |
1609 | { "ps", "+" , 1 }, | |
74bcd529 | 1610 | { "pt", "->" , 2 }, |
eb383413 L |
1611 | { "qu", "?" , 3 }, |
1612 | { "rM", "%=" , 2 }, | |
1613 | { "rS", ">>=" , 2 }, | |
1614 | { "rm", "%" , 2 }, | |
1615 | { "rs", ">>" , 2 }, | |
1616 | { "sz", " sizeof" , 1 } | |
1617 | }; | |
1618 | ||
1619 | const int num_operators = | |
1620 | sizeof (operators) / sizeof (struct operator_code); | |
1621 | ||
1622 | int c0 = next_char (dm); | |
1623 | int c1 = next_char (dm); | |
1624 | const struct operator_code* p1 = operators; | |
1625 | const struct operator_code* p2 = operators + num_operators; | |
1626 | ||
1627 | DEMANGLE_TRACE ("operator-name", dm); | |
1628 | ||
74bcd529 DD |
1629 | /* Is this a vendor-extended operator? */ |
1630 | if (c0 == 'v' && IS_DIGIT (c1)) | |
eb383413 | 1631 | { |
59666b35 | 1632 | RETURN_IF_ERROR (result_add (dm, "operator ")); |
eb383413 L |
1633 | RETURN_IF_ERROR (demangle_source_name (dm)); |
1634 | *num_args = 0; | |
1635 | return STATUS_OK; | |
1636 | } | |
1637 | ||
1638 | /* Is this a conversion operator? */ | |
1639 | if (c0 == 'c' && c1 == 'v') | |
1640 | { | |
59666b35 | 1641 | RETURN_IF_ERROR (result_add (dm, "operator ")); |
eb383413 L |
1642 | /* Demangle the converted-to type. */ |
1643 | RETURN_IF_ERROR (demangle_type (dm)); | |
1644 | *num_args = 0; | |
1645 | return STATUS_OK; | |
1646 | } | |
1647 | ||
1648 | /* Perform a binary search for the operator code. */ | |
1649 | while (1) | |
1650 | { | |
1651 | const struct operator_code* p = p1 + (p2 - p1) / 2; | |
1652 | char match0 = p->code[0]; | |
1653 | char match1 = p->code[1]; | |
1654 | ||
1655 | if (c0 == match0 && c1 == match1) | |
1656 | /* Found it. */ | |
1657 | { | |
1658 | if (!short_name) | |
59666b35 DD |
1659 | RETURN_IF_ERROR (result_add (dm, "operator")); |
1660 | RETURN_IF_ERROR (result_add (dm, p->name)); | |
eb383413 L |
1661 | *num_args = p->num_args; |
1662 | ||
1663 | return STATUS_OK; | |
1664 | } | |
1665 | ||
1666 | if (p == p1) | |
1667 | /* Couldn't find it. */ | |
1668 | return "Unknown code in <operator-name>."; | |
1669 | ||
1670 | /* Try again. */ | |
1671 | if (c0 < match0 || (c0 == match0 && c1 < match1)) | |
1672 | p2 = p; | |
1673 | else | |
1674 | p1 = p; | |
1675 | } | |
1676 | } | |
1677 | ||
74bcd529 DD |
1678 | /* Demangles and omits an <nv-offset>. |
1679 | ||
1680 | <nv-offset> ::= <offset number> # non-virtual base override */ | |
1681 | ||
1682 | static status_t | |
1683 | demangle_nv_offset (dm) | |
1684 | demangling_t dm; | |
1685 | { | |
1686 | dyn_string_t number; | |
1687 | status_t status = STATUS_OK; | |
1688 | ||
1689 | DEMANGLE_TRACE ("h-offset", dm); | |
1690 | ||
1691 | /* Demangle the offset. */ | |
1692 | number = dyn_string_new (4); | |
1693 | if (number == NULL) | |
1694 | return STATUS_ALLOCATION_FAILED; | |
1695 | demangle_number_literally (dm, number, 10, 1); | |
1696 | ||
1697 | /* Don't display the offset unless in verbose mode. */ | |
1698 | if (flag_verbose) | |
1699 | { | |
59666b35 | 1700 | status = result_add (dm, " [nv:"); |
74bcd529 | 1701 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1702 | status = result_add_string (dm, number); |
74bcd529 | 1703 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1704 | status = result_add_char (dm, ']'); |
74bcd529 DD |
1705 | } |
1706 | ||
1707 | /* Clean up. */ | |
1708 | dyn_string_delete (number); | |
1709 | RETURN_IF_ERROR (status); | |
1710 | return STATUS_OK; | |
1711 | } | |
1712 | ||
1713 | /* Demangles and emits a <v-offset>. | |
1714 | ||
1715 | <v-offset> ::= <offset number> _ <virtual offset number> | |
1716 | # virtual base override, with vcall offset */ | |
1717 | ||
1718 | static status_t | |
1719 | demangle_v_offset (dm) | |
1720 | demangling_t dm; | |
1721 | { | |
1722 | dyn_string_t number; | |
1723 | status_t status = STATUS_OK; | |
1724 | ||
1725 | DEMANGLE_TRACE ("v-offset", dm); | |
1726 | ||
1727 | /* Demangle the offset. */ | |
1728 | number = dyn_string_new (4); | |
1729 | if (number == NULL) | |
1730 | return STATUS_ALLOCATION_FAILED; | |
1731 | demangle_number_literally (dm, number, 10, 1); | |
1732 | ||
1733 | /* Don't display the offset unless in verbose mode. */ | |
1734 | if (flag_verbose) | |
1735 | { | |
59666b35 | 1736 | status = result_add (dm, " [v:"); |
74bcd529 | 1737 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1738 | status = result_add_string (dm, number); |
74bcd529 | 1739 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1740 | result_add_char (dm, ','); |
74bcd529 DD |
1741 | } |
1742 | dyn_string_delete (number); | |
1743 | RETURN_IF_ERROR (status); | |
1744 | ||
1745 | /* Demangle the separator. */ | |
1746 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1747 | ||
1748 | /* Demangle the vcall offset. */ | |
1749 | number = dyn_string_new (4); | |
1750 | if (number == NULL) | |
1751 | return STATUS_ALLOCATION_FAILED; | |
1752 | demangle_number_literally (dm, number, 10, 1); | |
1753 | ||
1754 | /* Don't display the vcall offset unless in verbose mode. */ | |
1755 | if (flag_verbose) | |
1756 | { | |
59666b35 | 1757 | status = result_add_string (dm, number); |
74bcd529 | 1758 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1759 | status = result_add_char (dm, ']'); |
74bcd529 DD |
1760 | } |
1761 | dyn_string_delete (number); | |
1762 | RETURN_IF_ERROR (status); | |
1763 | ||
1764 | return STATUS_OK; | |
1765 | } | |
1766 | ||
1767 | /* Demangles and emits a <call-offset>. | |
1768 | ||
1769 | <call-offset> ::= h <nv-offset> _ | |
1770 | ::= v <v-offset> _ */ | |
1771 | ||
1772 | static status_t | |
1773 | demangle_call_offset (dm) | |
1774 | demangling_t dm; | |
1775 | { | |
1776 | DEMANGLE_TRACE ("call-offset", dm); | |
1777 | ||
1778 | switch (peek_char (dm)) | |
1779 | { | |
1780 | case 'h': | |
1781 | advance_char (dm); | |
1782 | /* Demangle the offset. */ | |
1783 | RETURN_IF_ERROR (demangle_nv_offset (dm)); | |
1784 | /* Demangle the separator. */ | |
1785 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1786 | break; | |
1787 | ||
1788 | case 'v': | |
1789 | advance_char (dm); | |
1790 | /* Demangle the offset. */ | |
1791 | RETURN_IF_ERROR (demangle_v_offset (dm)); | |
1792 | /* Demangle the separator. */ | |
1793 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1794 | break; | |
1795 | ||
1796 | default: | |
1797 | return "Unrecognized <call-offset>."; | |
1798 | } | |
1799 | ||
1800 | return STATUS_OK; | |
1801 | } | |
1802 | ||
eb383413 L |
1803 | /* Demangles and emits a <special-name>. |
1804 | ||
1805 | <special-name> ::= GV <object name> # Guard variable | |
eb383413 L |
1806 | ::= TV <type> # virtual table |
1807 | ::= TT <type> # VTT | |
1808 | ::= TI <type> # typeinfo structure | |
1809 | ::= TS <type> # typeinfo name | |
1810 | ||
74bcd529 DD |
1811 | Other relevant productions include thunks: |
1812 | ||
1813 | <special-name> ::= T <call-offset> <base encoding> | |
1814 | # base is the nominal target function of thunk | |
1815 | ||
1816 | <special-name> ::= Tc <call-offset> <call-offset> <base encoding> | |
1817 | # base is the nominal target function of thunk | |
1818 | # first call-offset is 'this' adjustment | |
1819 | # second call-offset is result adjustment | |
1820 | ||
1821 | where | |
1822 | ||
1823 | <call-offset> ::= h <nv-offset> _ | |
1824 | ::= v <v-offset> _ | |
1825 | ||
eb383413 L |
1826 | Also demangles the special g++ manglings, |
1827 | ||
74bcd529 | 1828 | <special-name> ::= TC <type> <offset number> _ <base type> |
eb383413 L |
1829 | # construction vtable |
1830 | ::= TF <type> # typeinfo function (old ABI only) | |
1831 | ::= TJ <type> # java Class structure */ | |
1832 | ||
1833 | static status_t | |
1834 | demangle_special_name (dm) | |
1835 | demangling_t dm; | |
1836 | { | |
1837 | dyn_string_t number; | |
1838 | int unused; | |
1839 | char peek = peek_char (dm); | |
1840 | ||
1841 | DEMANGLE_TRACE ("special-name", dm); | |
1842 | ||
1843 | if (peek == 'G') | |
1844 | { | |
e7e9b069 | 1845 | /* Consume the G. */ |
eb383413 | 1846 | advance_char (dm); |
e7e9b069 DD |
1847 | switch (peek_char (dm)) |
1848 | { | |
1849 | case 'V': | |
1850 | /* A guard variable name. */ | |
1851 | advance_char (dm); | |
1852 | RETURN_IF_ERROR (result_add (dm, "guard variable for ")); | |
1853 | RETURN_IF_ERROR (demangle_name (dm, &unused)); | |
1854 | break; | |
1855 | ||
1856 | case 'R': | |
1857 | /* A reference temporary. */ | |
1858 | advance_char (dm); | |
1859 | RETURN_IF_ERROR (result_add (dm, "reference temporary for ")); | |
1860 | RETURN_IF_ERROR (demangle_name (dm, &unused)); | |
1861 | break; | |
1862 | ||
1863 | default: | |
1864 | return "Unrecognized <special-name>."; | |
1865 | } | |
eb383413 L |
1866 | } |
1867 | else if (peek == 'T') | |
1868 | { | |
03d5f569 JM |
1869 | status_t status = STATUS_OK; |
1870 | ||
eb383413 L |
1871 | /* Other C++ implementation miscellania. Consume the T. */ |
1872 | advance_char (dm); | |
1873 | ||
1874 | switch (peek_char (dm)) | |
1875 | { | |
1876 | case 'V': | |
1877 | /* Virtual table. */ | |
1878 | advance_char (dm); | |
59666b35 | 1879 | RETURN_IF_ERROR (result_add (dm, "vtable for ")); |
eb383413 L |
1880 | RETURN_IF_ERROR (demangle_type (dm)); |
1881 | break; | |
1882 | ||
1883 | case 'T': | |
1884 | /* VTT structure. */ | |
1885 | advance_char (dm); | |
59666b35 | 1886 | RETURN_IF_ERROR (result_add (dm, "VTT for ")); |
eb383413 L |
1887 | RETURN_IF_ERROR (demangle_type (dm)); |
1888 | break; | |
1889 | ||
1890 | case 'I': | |
1891 | /* Typeinfo structure. */ | |
1892 | advance_char (dm); | |
59666b35 | 1893 | RETURN_IF_ERROR (result_add (dm, "typeinfo for ")); |
eb383413 L |
1894 | RETURN_IF_ERROR (demangle_type (dm)); |
1895 | break; | |
1896 | ||
1897 | case 'F': | |
1898 | /* Typeinfo function. Used only in old ABI with new mangling. */ | |
1899 | advance_char (dm); | |
59666b35 | 1900 | RETURN_IF_ERROR (result_add (dm, "typeinfo fn for ")); |
eb383413 L |
1901 | RETURN_IF_ERROR (demangle_type (dm)); |
1902 | break; | |
1903 | ||
1904 | case 'S': | |
1905 | /* Character string containing type name, used in typeinfo. */ | |
1906 | advance_char (dm); | |
59666b35 | 1907 | RETURN_IF_ERROR (result_add (dm, "typeinfo name for ")); |
eb383413 L |
1908 | RETURN_IF_ERROR (demangle_type (dm)); |
1909 | break; | |
1910 | ||
1911 | case 'J': | |
1912 | /* The java Class variable corresponding to a C++ class. */ | |
1913 | advance_char (dm); | |
59666b35 | 1914 | RETURN_IF_ERROR (result_add (dm, "java Class for ")); |
eb383413 L |
1915 | RETURN_IF_ERROR (demangle_type (dm)); |
1916 | break; | |
1917 | ||
1918 | case 'h': | |
1919 | /* Non-virtual thunk. */ | |
1920 | advance_char (dm); | |
59666b35 | 1921 | RETURN_IF_ERROR (result_add (dm, "non-virtual thunk")); |
74bcd529 | 1922 | RETURN_IF_ERROR (demangle_nv_offset (dm)); |
eb383413 L |
1923 | /* Demangle the separator. */ |
1924 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1925 | /* Demangle and emit the target name and function type. */ | |
59666b35 | 1926 | RETURN_IF_ERROR (result_add (dm, " to ")); |
eb383413 L |
1927 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1928 | break; | |
1929 | ||
1930 | case 'v': | |
1931 | /* Virtual thunk. */ | |
1932 | advance_char (dm); | |
59666b35 | 1933 | RETURN_IF_ERROR (result_add (dm, "virtual thunk")); |
74bcd529 | 1934 | RETURN_IF_ERROR (demangle_v_offset (dm)); |
eb383413 L |
1935 | /* Demangle the separator. */ |
1936 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
1937 | /* Demangle and emit the target function. */ | |
59666b35 | 1938 | RETURN_IF_ERROR (result_add (dm, " to ")); |
74bcd529 DD |
1939 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1940 | break; | |
1941 | ||
1942 | case 'c': | |
1943 | /* Covariant return thunk. */ | |
1944 | advance_char (dm); | |
59666b35 | 1945 | RETURN_IF_ERROR (result_add (dm, "covariant return thunk")); |
74bcd529 DD |
1946 | RETURN_IF_ERROR (demangle_call_offset (dm)); |
1947 | RETURN_IF_ERROR (demangle_call_offset (dm)); | |
1948 | /* Demangle and emit the target function. */ | |
59666b35 | 1949 | RETURN_IF_ERROR (result_add (dm, " to ")); |
eb383413 L |
1950 | RETURN_IF_ERROR (demangle_encoding (dm)); |
1951 | break; | |
1952 | ||
1953 | case 'C': | |
1954 | /* TC is a special g++ mangling for a construction vtable. */ | |
1955 | if (!flag_strict) | |
1956 | { | |
03d5f569 JM |
1957 | dyn_string_t derived_type; |
1958 | ||
eb383413 | 1959 | advance_char (dm); |
59666b35 | 1960 | RETURN_IF_ERROR (result_add (dm, "construction vtable for ")); |
03d5f569 JM |
1961 | |
1962 | /* Demangle the derived type off to the side. */ | |
1963 | RETURN_IF_ERROR (result_push (dm)); | |
eb383413 | 1964 | RETURN_IF_ERROR (demangle_type (dm)); |
03d5f569 JM |
1965 | derived_type = (dyn_string_t) result_pop (dm); |
1966 | ||
eb383413 L |
1967 | /* Demangle the offset. */ |
1968 | number = dyn_string_new (4); | |
03d5f569 JM |
1969 | if (number == NULL) |
1970 | { | |
1971 | dyn_string_delete (derived_type); | |
1972 | return STATUS_ALLOCATION_FAILED; | |
1973 | } | |
eb383413 L |
1974 | demangle_number_literally (dm, number, 10, 1); |
1975 | /* Demangle the underscore separator. */ | |
03d5f569 JM |
1976 | status = demangle_char (dm, '_'); |
1977 | ||
eb383413 | 1978 | /* Demangle the base type. */ |
03d5f569 JM |
1979 | if (STATUS_NO_ERROR (status)) |
1980 | status = demangle_type (dm); | |
1981 | ||
1982 | /* Emit the derived type. */ | |
1983 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 1984 | status = result_add (dm, "-in-"); |
03d5f569 | 1985 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1986 | status = result_add_string (dm, derived_type); |
03d5f569 JM |
1987 | dyn_string_delete (derived_type); |
1988 | ||
eb383413 L |
1989 | /* Don't display the offset unless in verbose mode. */ |
1990 | if (flag_verbose) | |
1991 | { | |
59666b35 | 1992 | status = result_add_char (dm, ' '); |
03d5f569 | 1993 | if (STATUS_NO_ERROR (status)) |
59666b35 | 1994 | result_add_string (dm, number); |
eb383413 L |
1995 | } |
1996 | dyn_string_delete (number); | |
03d5f569 | 1997 | RETURN_IF_ERROR (status); |
eb383413 L |
1998 | break; |
1999 | } | |
2000 | /* If flag_strict, fall through. */ | |
2001 | ||
2002 | default: | |
2003 | return "Unrecognized <special-name>."; | |
2004 | } | |
2005 | } | |
2006 | else | |
2007 | return STATUS_ERROR; | |
2008 | ||
2009 | return STATUS_OK; | |
2010 | } | |
2011 | ||
2012 | /* Demangles and emits a <ctor-dtor-name>. | |
2013 | ||
2014 | <ctor-dtor-name> | |
2015 | ::= C1 # complete object (in-charge) ctor | |
2016 | ::= C2 # base object (not-in-charge) ctor | |
2017 | ::= C3 # complete object (in-charge) allocating ctor | |
eb383413 L |
2018 | ::= D0 # deleting (in-charge) dtor |
2019 | ::= D1 # complete object (in-charge) dtor | |
2020 | ::= D2 # base object (not-in-charge) dtor */ | |
2021 | ||
2022 | static status_t | |
2023 | demangle_ctor_dtor_name (dm) | |
2024 | demangling_t dm; | |
2025 | { | |
2026 | static const char *const ctor_flavors[] = | |
2027 | { | |
2028 | "in-charge", | |
2029 | "not-in-charge", | |
74bcd529 | 2030 | "allocating" |
eb383413 L |
2031 | }; |
2032 | static const char *const dtor_flavors[] = | |
2033 | { | |
2034 | "in-charge deleting", | |
2035 | "in-charge", | |
2036 | "not-in-charge" | |
2037 | }; | |
2038 | ||
2039 | int flavor; | |
2040 | char peek = peek_char (dm); | |
2041 | ||
2042 | DEMANGLE_TRACE ("ctor-dtor-name", dm); | |
2043 | ||
2044 | if (peek == 'C') | |
2045 | { | |
2046 | /* A constructor name. Consume the C. */ | |
2047 | advance_char (dm); | |
e61231f1 JB |
2048 | flavor = next_char (dm); |
2049 | if (flavor < '1' || flavor > '3') | |
eb383413 | 2050 | return "Unrecognized constructor."; |
59666b35 | 2051 | RETURN_IF_ERROR (result_add_string (dm, dm->last_source_name)); |
e61231f1 JB |
2052 | switch (flavor) |
2053 | { | |
2054 | case '1': dm->is_constructor = gnu_v3_complete_object_ctor; | |
2055 | break; | |
2056 | case '2': dm->is_constructor = gnu_v3_base_object_ctor; | |
2057 | break; | |
2058 | case '3': dm->is_constructor = gnu_v3_complete_object_allocating_ctor; | |
2059 | break; | |
2060 | } | |
eb383413 | 2061 | /* Print the flavor of the constructor if in verbose mode. */ |
eb383413 L |
2062 | if (flag_verbose) |
2063 | { | |
59666b35 | 2064 | RETURN_IF_ERROR (result_add (dm, "[")); |
e61231f1 | 2065 | RETURN_IF_ERROR (result_add (dm, ctor_flavors[flavor - '1'])); |
59666b35 | 2066 | RETURN_IF_ERROR (result_add_char (dm, ']')); |
eb383413 L |
2067 | } |
2068 | } | |
2069 | else if (peek == 'D') | |
2070 | { | |
2071 | /* A destructor name. Consume the D. */ | |
2072 | advance_char (dm); | |
e61231f1 JB |
2073 | flavor = next_char (dm); |
2074 | if (flavor < '0' || flavor > '2') | |
eb383413 | 2075 | return "Unrecognized destructor."; |
59666b35 DD |
2076 | RETURN_IF_ERROR (result_add_char (dm, '~')); |
2077 | RETURN_IF_ERROR (result_add_string (dm, dm->last_source_name)); | |
e61231f1 JB |
2078 | switch (flavor) |
2079 | { | |
2080 | case '0': dm->is_destructor = gnu_v3_deleting_dtor; | |
2081 | break; | |
2082 | case '1': dm->is_destructor = gnu_v3_complete_object_dtor; | |
2083 | break; | |
2084 | case '2': dm->is_destructor = gnu_v3_base_object_dtor; | |
2085 | break; | |
2086 | } | |
eb383413 | 2087 | /* Print the flavor of the destructor if in verbose mode. */ |
eb383413 L |
2088 | if (flag_verbose) |
2089 | { | |
59666b35 | 2090 | RETURN_IF_ERROR (result_add (dm, " [")); |
e61231f1 | 2091 | RETURN_IF_ERROR (result_add (dm, dtor_flavors[flavor - '0'])); |
59666b35 | 2092 | RETURN_IF_ERROR (result_add_char (dm, ']')); |
eb383413 L |
2093 | } |
2094 | } | |
2095 | else | |
2096 | return STATUS_ERROR; | |
2097 | ||
2098 | return STATUS_OK; | |
2099 | } | |
2100 | ||
2101 | /* Handle pointer, reference, and pointer-to-member cases for | |
2102 | demangle_type. All consecutive `P's, `R's, and 'M's are joined to | |
2103 | build a pointer/reference type. We snarf all these, plus the | |
2104 | following <type>, all at once since we need to know whether we have | |
2105 | a pointer to data or pointer to function to construct the right | |
2106 | output syntax. C++'s pointer syntax is hairy. | |
2107 | ||
74bcd529 DD |
2108 | This function adds substitution candidates for every nested |
2109 | pointer/reference type it processes, including the outermost, final | |
2110 | type, assuming the substitution starts at SUBSTITUTION_START in the | |
2111 | demangling result. For example, if this function demangles | |
2112 | `PP3Foo', it will add a substitution for `Foo', `Foo*', and | |
2113 | `Foo**', in that order. | |
2114 | ||
2115 | *INSERT_POS is a quantity used internally, when this function calls | |
2116 | itself recursively, to figure out where to insert pointer | |
2117 | punctuation on the way up. On entry to this function, INSERT_POS | |
2118 | should point to a temporary value, but that value need not be | |
2119 | initialized. | |
2120 | ||
eb383413 L |
2121 | <type> ::= P <type> |
2122 | ::= R <type> | |
2123 | ::= <pointer-to-member-type> | |
2124 | ||
2125 | <pointer-to-member-type> ::= M </class/ type> </member/ type> */ | |
2126 | ||
2127 | static status_t | |
74bcd529 | 2128 | demangle_type_ptr (dm, insert_pos, substitution_start) |
eb383413 | 2129 | demangling_t dm; |
74bcd529 DD |
2130 | int *insert_pos; |
2131 | int substitution_start; | |
eb383413 | 2132 | { |
eb383413 | 2133 | status_t status; |
74bcd529 | 2134 | int is_substitution_candidate = 1; |
eb383413 L |
2135 | |
2136 | DEMANGLE_TRACE ("type*", dm); | |
2137 | ||
2138 | /* Scan forward, collecting pointers and references into symbols, | |
2139 | until we hit something else. Then emit the type. */ | |
59666b35 | 2140 | switch (peek_char (dm)) |
eb383413 | 2141 | { |
59666b35 | 2142 | case 'P': |
74bcd529 DD |
2143 | /* A pointer. Snarf the `P'. */ |
2144 | advance_char (dm); | |
2145 | /* Demangle the underlying type. */ | |
2146 | RETURN_IF_ERROR (demangle_type_ptr (dm, insert_pos, | |
2147 | substitution_start)); | |
2148 | /* Insert an asterisk where we're told to; it doesn't | |
bc9bf259 DD |
2149 | necessarily go at the end. If we're doing Java style output, |
2150 | there is no pointer symbol. */ | |
2151 | if (dm->style != DMGL_JAVA) | |
2152 | RETURN_IF_ERROR (result_insert_char (dm, *insert_pos, '*')); | |
74bcd529 DD |
2153 | /* The next (outermost) pointer or reference character should go |
2154 | after this one. */ | |
2155 | ++(*insert_pos); | |
59666b35 DD |
2156 | break; |
2157 | ||
2158 | case 'R': | |
74bcd529 DD |
2159 | /* A reference. Snarf the `R'. */ |
2160 | advance_char (dm); | |
2161 | /* Demangle the underlying type. */ | |
2162 | RETURN_IF_ERROR (demangle_type_ptr (dm, insert_pos, | |
2163 | substitution_start)); | |
2164 | /* Insert an ampersand where we're told to; it doesn't | |
2165 | necessarily go at the end. */ | |
2166 | RETURN_IF_ERROR (result_insert_char (dm, *insert_pos, '&')); | |
2167 | /* The next (outermost) pointer or reference character should go | |
2168 | after this one. */ | |
2169 | ++(*insert_pos); | |
59666b35 DD |
2170 | break; |
2171 | ||
2172 | case 'M': | |
74bcd529 DD |
2173 | { |
2174 | /* A pointer-to-member. */ | |
2175 | dyn_string_t class_type; | |
2176 | ||
2177 | /* Eat the 'M'. */ | |
2178 | advance_char (dm); | |
2179 | ||
2180 | /* Capture the type of which this is a pointer-to-member. */ | |
2181 | RETURN_IF_ERROR (result_push (dm)); | |
2182 | RETURN_IF_ERROR (demangle_type (dm)); | |
2183 | class_type = (dyn_string_t) result_pop (dm); | |
2184 | ||
2185 | if (peek_char (dm) == 'F') | |
2186 | /* A pointer-to-member function. We want output along the | |
2187 | lines of `void (C::*) (int, int)'. Demangle the function | |
2188 | type, which would in this case give `void () (int, int)' | |
2189 | and set *insert_pos to the spot between the first | |
2190 | parentheses. */ | |
2191 | status = demangle_type_ptr (dm, insert_pos, substitution_start); | |
59666b35 DD |
2192 | else if (peek_char (dm) == 'A') |
2193 | /* A pointer-to-member array variable. We want output that | |
2194 | looks like `int (Klass::*) [10]'. Demangle the array type | |
2195 | as `int () [10]', and set *insert_pos to the spot between | |
2196 | the parentheses. */ | |
2197 | status = demangle_array_type (dm, insert_pos); | |
74bcd529 DD |
2198 | else |
2199 | { | |
2200 | /* A pointer-to-member variable. Demangle the type of the | |
2201 | pointed-to member. */ | |
eb383413 L |
2202 | status = demangle_type (dm); |
2203 | /* Make it pretty. */ | |
59666b35 DD |
2204 | if (STATUS_NO_ERROR (status) |
2205 | && !result_previous_char_is_space (dm)) | |
2206 | status = result_add_char (dm, ' '); | |
74bcd529 DD |
2207 | /* The pointer-to-member notation (e.g. `C::*') follows the |
2208 | member's type. */ | |
59666b35 | 2209 | *insert_pos = result_caret_pos (dm); |
eb383413 | 2210 | } |
eb383413 | 2211 | |
74bcd529 DD |
2212 | /* Build the pointer-to-member notation. */ |
2213 | if (STATUS_NO_ERROR (status)) | |
2214 | status = result_insert (dm, *insert_pos, "::*"); | |
2215 | if (STATUS_NO_ERROR (status)) | |
2216 | status = result_insert_string (dm, *insert_pos, class_type); | |
2217 | /* There may be additional levels of (pointer or reference) | |
2218 | indirection in this type. If so, the `*' and `&' should be | |
2219 | added after the pointer-to-member notation (e.g. `C::*&' for | |
2220 | a reference to a pointer-to-member of class C). */ | |
2221 | *insert_pos += dyn_string_length (class_type) + 3; | |
eb383413 | 2222 | |
74bcd529 DD |
2223 | /* Clean up. */ |
2224 | dyn_string_delete (class_type); | |
eb383413 | 2225 | |
74bcd529 | 2226 | RETURN_IF_ERROR (status); |
eb383413 | 2227 | } |
59666b35 DD |
2228 | break; |
2229 | ||
2230 | case 'F': | |
74bcd529 DD |
2231 | /* Ooh, tricky, a pointer-to-function. When we demangle the |
2232 | function type, the return type should go at the very | |
2233 | beginning. */ | |
59666b35 | 2234 | *insert_pos = result_caret_pos (dm); |
74bcd529 DD |
2235 | /* The parentheses indicate this is a function pointer or |
2236 | reference type. */ | |
59666b35 | 2237 | RETURN_IF_ERROR (result_add (dm, "()")); |
74bcd529 DD |
2238 | /* Now demangle the function type. The return type will be |
2239 | inserted before the `()', and the argument list will go after | |
2240 | it. */ | |
2241 | RETURN_IF_ERROR (demangle_function_type (dm, insert_pos)); | |
2242 | /* We should now have something along the lines of | |
2243 | `void () (int, int)'. The pointer or reference characters | |
2244 | have to inside the first set of parentheses. *insert_pos has | |
2245 | already been updated to point past the end of the return | |
2246 | type. Move it one character over so it points inside the | |
2247 | `()'. */ | |
2248 | ++(*insert_pos); | |
59666b35 DD |
2249 | break; |
2250 | ||
2251 | case 'A': | |
2252 | /* An array pointer or reference. demangle_array_type will figure | |
2253 | out where the asterisks and ampersands go. */ | |
2254 | RETURN_IF_ERROR (demangle_array_type (dm, insert_pos)); | |
2255 | break; | |
2256 | ||
2257 | default: | |
74bcd529 DD |
2258 | /* No more pointer or reference tokens; this is therefore a |
2259 | pointer to data. Finish up by demangling the underlying | |
2260 | type. */ | |
2261 | RETURN_IF_ERROR (demangle_type (dm)); | |
2262 | /* The pointer or reference characters follow the underlying | |
2263 | type, as in `int*&'. */ | |
59666b35 | 2264 | *insert_pos = result_caret_pos (dm); |
74bcd529 DD |
2265 | /* Because of the production <type> ::= <substitution>, |
2266 | demangle_type will already have added the underlying type as | |
2267 | a substitution candidate. Don't do it again. */ | |
2268 | is_substitution_candidate = 0; | |
59666b35 | 2269 | break; |
74bcd529 DD |
2270 | } |
2271 | ||
2272 | if (is_substitution_candidate) | |
2273 | RETURN_IF_ERROR (substitution_add (dm, substitution_start, 0)); | |
2274 | ||
2275 | return STATUS_OK; | |
eb383413 L |
2276 | } |
2277 | ||
2278 | /* Demangles and emits a <type>. | |
2279 | ||
2280 | <type> ::= <builtin-type> | |
2281 | ::= <function-type> | |
2282 | ::= <class-enum-type> | |
2283 | ::= <array-type> | |
2284 | ::= <pointer-to-member-type> | |
2285 | ::= <template-param> | |
74bcd529 | 2286 | ::= <template-template-param> <template-args> |
eb383413 L |
2287 | ::= <CV-qualifiers> <type> |
2288 | ::= P <type> # pointer-to | |
2289 | ::= R <type> # reference-to | |
2290 | ::= C <type> # complex pair (C 2000) | |
2291 | ::= G <type> # imaginary (C 2000) | |
2292 | ::= U <source-name> <type> # vendor extended type qualifier | |
2293 | ::= <substitution> */ | |
2294 | ||
2295 | static status_t | |
2296 | demangle_type (dm) | |
2297 | demangling_t dm; | |
2298 | { | |
2299 | int start = substitution_start (dm); | |
2300 | char peek = peek_char (dm); | |
03d5f569 | 2301 | char peek_next; |
74bcd529 | 2302 | int encode_return_type = 0; |
eb383413 | 2303 | template_arg_list_t old_arg_list = current_template_arg_list (dm); |
74bcd529 DD |
2304 | int insert_pos; |
2305 | ||
2306 | /* A <type> can be a <substitution>; therefore, this <type> is a | |
2307 | substitution candidate unless a special condition holds (see | |
2308 | below). */ | |
2309 | int is_substitution_candidate = 1; | |
eb383413 L |
2310 | |
2311 | DEMANGLE_TRACE ("type", dm); | |
2312 | ||
2313 | /* A <class-enum-type> can start with a digit (a <source-name>), an | |
2314 | N (a <nested-name>), or a Z (a <local-name>). */ | |
03d5f569 | 2315 | if (IS_DIGIT ((unsigned char) peek) || peek == 'N' || peek == 'Z') |
74bcd529 DD |
2316 | RETURN_IF_ERROR (demangle_class_enum_type (dm, &encode_return_type)); |
2317 | /* Lower-case letters begin <builtin-type>s, except for `r', which | |
2318 | denotes restrict. */ | |
2319 | else if (peek >= 'a' && peek <= 'z' && peek != 'r') | |
eb383413 L |
2320 | { |
2321 | RETURN_IF_ERROR (demangle_builtin_type (dm)); | |
74bcd529 DD |
2322 | /* Built-in types are not substitution candidates. */ |
2323 | is_substitution_candidate = 0; | |
eb383413 L |
2324 | } |
2325 | else | |
2326 | switch (peek) | |
2327 | { | |
2328 | case 'r': | |
2329 | case 'V': | |
2330 | case 'K': | |
74bcd529 DD |
2331 | /* CV-qualifiers (including restrict). We have to demangle |
2332 | them off to the side, since C++ syntax puts them in a funny | |
2333 | place for qualified pointer and reference types. */ | |
eb383413 L |
2334 | { |
2335 | status_t status; | |
2336 | dyn_string_t cv_qualifiers = dyn_string_new (24); | |
59666b35 | 2337 | int old_caret_position = result_get_caret (dm); |
03d5f569 JM |
2338 | |
2339 | if (cv_qualifiers == NULL) | |
2340 | return STATUS_ALLOCATION_FAILED; | |
2341 | ||
59666b35 | 2342 | /* Decode all adjacent CV qualifiers. */ |
eb383413 | 2343 | demangle_CV_qualifiers (dm, cv_qualifiers); |
59666b35 DD |
2344 | /* Emit them, and shift the caret left so that the |
2345 | underlying type will be emitted before the qualifiers. */ | |
2346 | status = result_add_string (dm, cv_qualifiers); | |
2347 | result_shift_caret (dm, -dyn_string_length (cv_qualifiers)); | |
2348 | /* Clean up. */ | |
eb383413 L |
2349 | dyn_string_delete (cv_qualifiers); |
2350 | RETURN_IF_ERROR (status); | |
59666b35 DD |
2351 | /* Also prepend a blank, if needed. */ |
2352 | RETURN_IF_ERROR (result_add_char (dm, ' ')); | |
2353 | result_shift_caret (dm, -1); | |
2354 | ||
2355 | /* Demangle the underlying type. It will be emitted before | |
2356 | the CV qualifiers, since we moved the caret. */ | |
2357 | RETURN_IF_ERROR (demangle_type (dm)); | |
2358 | ||
2359 | /* Put the caret back where it was previously. */ | |
2360 | result_set_caret (dm, old_caret_position); | |
eb383413 L |
2361 | } |
2362 | break; | |
2363 | ||
2364 | case 'F': | |
2365 | return "Non-pointer or -reference function type."; | |
2366 | ||
2367 | case 'A': | |
59666b35 | 2368 | RETURN_IF_ERROR (demangle_array_type (dm, NULL)); |
eb383413 L |
2369 | break; |
2370 | ||
2371 | case 'T': | |
74bcd529 DD |
2372 | /* It's either a <template-param> or a |
2373 | <template-template-param>. In either case, demangle the | |
2374 | `T' token first. */ | |
2375 | RETURN_IF_ERROR (demangle_template_param (dm)); | |
2376 | ||
2377 | /* Check for a template argument list; if one is found, it's a | |
2378 | <template-template-param> ::= <template-param> | |
2379 | ::= <substitution> */ | |
2380 | if (peek_char (dm) == 'I') | |
2381 | { | |
2382 | /* Add a substitution candidate. The template parameter | |
2383 | `T' token is a substitution candidate by itself, | |
2384 | without the template argument list. */ | |
2385 | RETURN_IF_ERROR (substitution_add (dm, start, encode_return_type)); | |
2386 | ||
2387 | /* Now demangle the template argument list. */ | |
2388 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
2389 | /* The entire type, including the template template | |
2390 | parameter and its argument list, will be added as a | |
2391 | substitution candidate below. */ | |
2392 | } | |
2393 | ||
eb383413 L |
2394 | break; |
2395 | ||
2396 | case 'S': | |
03d5f569 JM |
2397 | /* First check if this is a special substitution. If it is, |
2398 | this is a <class-enum-type>. Special substitutions have a | |
2399 | letter following the `S'; other substitutions have a digit | |
2400 | or underscore. */ | |
2401 | peek_next = peek_char_next (dm); | |
2402 | if (IS_DIGIT (peek_next) || peek_next == '_') | |
74bcd529 DD |
2403 | { |
2404 | RETURN_IF_ERROR (demangle_substitution (dm, &encode_return_type)); | |
2405 | ||
2406 | /* The substituted name may have been a template name. | |
2407 | Check if template arguments follow, and if so, demangle | |
2408 | them. */ | |
2409 | if (peek_char (dm) == 'I') | |
2410 | RETURN_IF_ERROR (demangle_template_args (dm)); | |
2411 | else | |
2412 | /* A substitution token is not itself a substitution | |
2413 | candidate. (However, if the substituted template is | |
2414 | instantiated, the resulting type is.) */ | |
2415 | is_substitution_candidate = 0; | |
2416 | } | |
03d5f569 | 2417 | else |
74bcd529 DD |
2418 | { |
2419 | /* Now some trickiness. We have a special substitution | |
2420 | here. Often, the special substitution provides the | |
2421 | name of a template that's subsequently instantiated, | |
2422 | for instance `SaIcE' => std::allocator<char>. In these | |
2423 | cases we need to add a substitution candidate for the | |
2424 | entire <class-enum-type> and thus don't want to clear | |
2425 | the is_substitution_candidate flag. | |
2426 | ||
2427 | However, it's possible that what we have here is a | |
2428 | substitution token representing an entire type, such as | |
2429 | `Ss' => std::string. In this case, we mustn't add a | |
2430 | new substitution candidate for this substitution token. | |
2431 | To detect this case, remember where the start of the | |
2432 | substitution token is. */ | |
2433 | const char *next = dm->next; | |
2434 | /* Now demangle the <class-enum-type>. */ | |
2435 | RETURN_IF_ERROR | |
2436 | (demangle_class_enum_type (dm, &encode_return_type)); | |
2437 | /* If all that was just demangled is the two-character | |
2438 | special substitution token, supress the addition of a | |
2439 | new candidate for it. */ | |
2440 | if (dm->next == next + 2) | |
2441 | is_substitution_candidate = 0; | |
2442 | } | |
2443 | ||
eb383413 L |
2444 | break; |
2445 | ||
2446 | case 'P': | |
2447 | case 'R': | |
2448 | case 'M': | |
74bcd529 DD |
2449 | RETURN_IF_ERROR (demangle_type_ptr (dm, &insert_pos, start)); |
2450 | /* demangle_type_ptr adds all applicable substitution | |
2451 | candidates. */ | |
2452 | is_substitution_candidate = 0; | |
eb383413 L |
2453 | break; |
2454 | ||
2455 | case 'C': | |
2456 | /* A C99 complex type. */ | |
59666b35 | 2457 | RETURN_IF_ERROR (result_add (dm, "complex ")); |
eb383413 L |
2458 | advance_char (dm); |
2459 | RETURN_IF_ERROR (demangle_type (dm)); | |
2460 | break; | |
2461 | ||
2462 | case 'G': | |
2463 | /* A C99 imaginary type. */ | |
59666b35 | 2464 | RETURN_IF_ERROR (result_add (dm, "imaginary ")); |
eb383413 L |
2465 | advance_char (dm); |
2466 | RETURN_IF_ERROR (demangle_type (dm)); | |
2467 | break; | |
2468 | ||
2469 | case 'U': | |
74bcd529 | 2470 | /* Vendor-extended type qualifier. */ |
eb383413 L |
2471 | advance_char (dm); |
2472 | RETURN_IF_ERROR (demangle_source_name (dm)); | |
59666b35 | 2473 | RETURN_IF_ERROR (result_add_char (dm, ' ')); |
eb383413 L |
2474 | RETURN_IF_ERROR (demangle_type (dm)); |
2475 | break; | |
2476 | ||
2477 | default: | |
2478 | return "Unexpected character in <type>."; | |
2479 | } | |
2480 | ||
74bcd529 | 2481 | if (is_substitution_candidate) |
eb383413 L |
2482 | /* Add a new substitution for the type. If this type was a |
2483 | <template-param>, pass its index since from the point of | |
74bcd529 | 2484 | substitutions; a <template-param> token is a substitution |
eb383413 | 2485 | candidate distinct from the type that is substituted for it. */ |
74bcd529 | 2486 | RETURN_IF_ERROR (substitution_add (dm, start, encode_return_type)); |
eb383413 L |
2487 | |
2488 | /* Pop off template argument lists added during mangling of this | |
2489 | type. */ | |
2490 | pop_to_template_arg_list (dm, old_arg_list); | |
2491 | ||
2492 | return STATUS_OK; | |
2493 | } | |
2494 | ||
2495 | /* C++ source names of builtin types, indexed by the mangled code | |
2496 | letter's position in the alphabet ('a' -> 0, 'b' -> 1, etc). */ | |
2497 | static const char *const builtin_type_names[26] = | |
2498 | { | |
2499 | "signed char", /* a */ | |
2500 | "bool", /* b */ | |
2501 | "char", /* c */ | |
2502 | "double", /* d */ | |
2503 | "long double", /* e */ | |
2504 | "float", /* f */ | |
2505 | "__float128", /* g */ | |
2506 | "unsigned char", /* h */ | |
2507 | "int", /* i */ | |
2508 | "unsigned", /* j */ | |
2509 | NULL, /* k */ | |
2510 | "long", /* l */ | |
2511 | "unsigned long", /* m */ | |
2512 | "__int128", /* n */ | |
2513 | "unsigned __int128", /* o */ | |
2514 | NULL, /* p */ | |
2515 | NULL, /* q */ | |
2516 | NULL, /* r */ | |
2517 | "short", /* s */ | |
2518 | "unsigned short", /* t */ | |
2519 | NULL, /* u */ | |
2520 | "void", /* v */ | |
2521 | "wchar_t", /* w */ | |
2522 | "long long", /* x */ | |
2523 | "unsigned long long", /* y */ | |
2524 | "..." /* z */ | |
2525 | }; | |
2526 | ||
bc9bf259 DD |
2527 | /* Java source names of builtin types. Types that arn't valid in Java |
2528 | are also included here - we don't fail if someone attempts to demangle a | |
2529 | C++ symbol in Java style. */ | |
2530 | static const char *const java_builtin_type_names[26] = | |
2531 | { | |
2532 | "signed char", /* a */ | |
2533 | "boolean", /* C++ "bool" */ /* b */ | |
2534 | "byte", /* C++ "char" */ /* c */ | |
2535 | "double", /* d */ | |
2536 | "long double", /* e */ | |
2537 | "float", /* f */ | |
2538 | "__float128", /* g */ | |
2539 | "unsigned char", /* h */ | |
2540 | "int", /* i */ | |
2541 | "unsigned", /* j */ | |
2542 | NULL, /* k */ | |
2543 | "long", /* l */ | |
2544 | "unsigned long", /* m */ | |
2545 | "__int128", /* n */ | |
2546 | "unsigned __int128", /* o */ | |
2547 | NULL, /* p */ | |
2548 | NULL, /* q */ | |
2549 | NULL, /* r */ | |
2550 | "short", /* s */ | |
2551 | "unsigned short", /* t */ | |
2552 | NULL, /* u */ | |
2553 | "void", /* v */ | |
2554 | "char", /* C++ "wchar_t" */ /* w */ | |
2555 | "long", /* C++ "long long" */ /* x */ | |
2556 | "unsigned long long", /* y */ | |
2557 | "..." /* z */ | |
2558 | }; | |
2559 | ||
eb383413 L |
2560 | /* Demangles and emits a <builtin-type>. |
2561 | ||
2562 | <builtin-type> ::= v # void | |
2563 | ::= w # wchar_t | |
2564 | ::= b # bool | |
2565 | ::= c # char | |
2566 | ::= a # signed char | |
2567 | ::= h # unsigned char | |
2568 | ::= s # short | |
2569 | ::= t # unsigned short | |
2570 | ::= i # int | |
2571 | ::= j # unsigned int | |
2572 | ::= l # long | |
2573 | ::= m # unsigned long | |
2574 | ::= x # long long, __int64 | |
2575 | ::= y # unsigned long long, __int64 | |
2576 | ::= n # __int128 | |
2577 | ::= o # unsigned __int128 | |
2578 | ::= f # float | |
2579 | ::= d # double | |
2580 | ::= e # long double, __float80 | |
2581 | ::= g # __float128 | |
2582 | ::= z # ellipsis | |
2583 | ::= u <source-name> # vendor extended type */ | |
2584 | ||
2585 | static status_t | |
2586 | demangle_builtin_type (dm) | |
2587 | demangling_t dm; | |
2588 | { | |
2589 | ||
2590 | char code = peek_char (dm); | |
2591 | ||
2592 | DEMANGLE_TRACE ("builtin-type", dm); | |
2593 | ||
2594 | if (code == 'u') | |
2595 | { | |
2596 | advance_char (dm); | |
2597 | RETURN_IF_ERROR (demangle_source_name (dm)); | |
2598 | return STATUS_OK; | |
2599 | } | |
2600 | else if (code >= 'a' && code <= 'z') | |
2601 | { | |
bc9bf259 DD |
2602 | const char *type_name; |
2603 | /* Java uses different names for some built-in types. */ | |
2604 | if (dm->style == DMGL_JAVA) | |
2605 | type_name = java_builtin_type_names[code - 'a']; | |
2606 | else | |
2607 | type_name = builtin_type_names[code - 'a']; | |
eb383413 L |
2608 | if (type_name == NULL) |
2609 | return "Unrecognized <builtin-type> code."; | |
2610 | ||
59666b35 | 2611 | RETURN_IF_ERROR (result_add (dm, type_name)); |
eb383413 L |
2612 | advance_char (dm); |
2613 | return STATUS_OK; | |
2614 | } | |
2615 | else | |
2616 | return "Non-alphabetic <builtin-type> code."; | |
2617 | } | |
2618 | ||
2619 | /* Demangles all consecutive CV-qualifiers (const, volatile, and | |
2620 | restrict) at the current position. The qualifiers are appended to | |
2621 | QUALIFIERS. Returns STATUS_OK. */ | |
2622 | ||
2623 | static status_t | |
2624 | demangle_CV_qualifiers (dm, qualifiers) | |
2625 | demangling_t dm; | |
2626 | dyn_string_t qualifiers; | |
2627 | { | |
2628 | DEMANGLE_TRACE ("CV-qualifiers", dm); | |
2629 | ||
2630 | while (1) | |
2631 | { | |
2632 | switch (peek_char (dm)) | |
2633 | { | |
2634 | case 'r': | |
03d5f569 JM |
2635 | if (!dyn_string_append_space (qualifiers)) |
2636 | return STATUS_ALLOCATION_FAILED; | |
2637 | if (!dyn_string_append_cstr (qualifiers, "restrict")) | |
2638 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
2639 | break; |
2640 | ||
2641 | case 'V': | |
03d5f569 JM |
2642 | if (!dyn_string_append_space (qualifiers)) |
2643 | return STATUS_ALLOCATION_FAILED; | |
2644 | if (!dyn_string_append_cstr (qualifiers, "volatile")) | |
2645 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
2646 | break; |
2647 | ||
2648 | case 'K': | |
03d5f569 JM |
2649 | if (!dyn_string_append_space (qualifiers)) |
2650 | return STATUS_ALLOCATION_FAILED; | |
2651 | if (!dyn_string_append_cstr (qualifiers, "const")) | |
2652 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
2653 | break; |
2654 | ||
2655 | default: | |
2656 | return STATUS_OK; | |
2657 | } | |
2658 | ||
2659 | advance_char (dm); | |
2660 | } | |
2661 | } | |
2662 | ||
74bcd529 | 2663 | /* Demangles and emits a <function-type>. *FUNCTION_NAME_POS is the |
eb383413 | 2664 | position in the result string of the start of the function |
74bcd529 DD |
2665 | identifier, at which the function's return type will be inserted; |
2666 | *FUNCTION_NAME_POS is updated to position past the end of the | |
2667 | function's return type. | |
eb383413 L |
2668 | |
2669 | <function-type> ::= F [Y] <bare-function-type> E */ | |
2670 | ||
2671 | static status_t | |
2672 | demangle_function_type (dm, function_name_pos) | |
2673 | demangling_t dm; | |
74bcd529 | 2674 | int *function_name_pos; |
eb383413 L |
2675 | { |
2676 | DEMANGLE_TRACE ("function-type", dm); | |
2677 | RETURN_IF_ERROR (demangle_char (dm, 'F')); | |
2678 | if (peek_char (dm) == 'Y') | |
2679 | { | |
2680 | /* Indicate this function has C linkage if in verbose mode. */ | |
2681 | if (flag_verbose) | |
59666b35 | 2682 | RETURN_IF_ERROR (result_add (dm, " [extern \"C\"] ")); |
eb383413 L |
2683 | advance_char (dm); |
2684 | } | |
2685 | RETURN_IF_ERROR (demangle_bare_function_type (dm, function_name_pos)); | |
2686 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
2687 | return STATUS_OK; | |
2688 | } | |
2689 | ||
2690 | /* Demangles and emits a <bare-function-type>. RETURN_TYPE_POS is the | |
2691 | position in the result string at which the function return type | |
2692 | should be inserted. If RETURN_TYPE_POS is BFT_NO_RETURN_TYPE, the | |
2693 | function's return type is assumed not to be encoded. | |
2694 | ||
2695 | <bare-function-type> ::= <signature type>+ */ | |
2696 | ||
2697 | static status_t | |
2698 | demangle_bare_function_type (dm, return_type_pos) | |
2699 | demangling_t dm; | |
74bcd529 | 2700 | int *return_type_pos; |
eb383413 L |
2701 | { |
2702 | /* Sequence is the index of the current function parameter, counting | |
2703 | from zero. The value -1 denotes the return type. */ | |
2704 | int sequence = | |
2705 | (return_type_pos == BFT_NO_RETURN_TYPE ? 0 : -1); | |
2706 | ||
2707 | DEMANGLE_TRACE ("bare-function-type", dm); | |
2708 | ||
59666b35 | 2709 | RETURN_IF_ERROR (result_add_char (dm, '(')); |
eb383413 L |
2710 | while (!end_of_name_p (dm) && peek_char (dm) != 'E') |
2711 | { | |
2712 | if (sequence == -1) | |
2713 | /* We're decoding the function's return type. */ | |
2714 | { | |
2715 | dyn_string_t return_type; | |
03d5f569 | 2716 | status_t status = STATUS_OK; |
eb383413 L |
2717 | |
2718 | /* Decode the return type off to the side. */ | |
03d5f569 | 2719 | RETURN_IF_ERROR (result_push (dm)); |
eb383413 L |
2720 | RETURN_IF_ERROR (demangle_type (dm)); |
2721 | return_type = (dyn_string_t) result_pop (dm); | |
2722 | ||
03d5f569 JM |
2723 | /* Add a space to the end of the type. Insert the return |
2724 | type where we've been asked to. */ | |
74bcd529 | 2725 | if (!dyn_string_append_space (return_type)) |
03d5f569 | 2726 | status = STATUS_ALLOCATION_FAILED; |
74bcd529 DD |
2727 | if (STATUS_NO_ERROR (status)) |
2728 | { | |
2729 | if (!dyn_string_insert (result_string (dm), *return_type_pos, | |
2730 | return_type)) | |
2731 | status = STATUS_ALLOCATION_FAILED; | |
2732 | else | |
2733 | *return_type_pos += dyn_string_length (return_type); | |
2734 | } | |
eb383413 | 2735 | |
eb383413 | 2736 | dyn_string_delete (return_type); |
03d5f569 | 2737 | RETURN_IF_ERROR (status); |
eb383413 L |
2738 | } |
2739 | else | |
2740 | { | |
2741 | /* Skip `void' parameter types. One should only occur as | |
2742 | the only type in a parameter list; in that case, we want | |
2743 | to print `foo ()' instead of `foo (void)'. */ | |
2744 | if (peek_char (dm) == 'v') | |
74bcd529 DD |
2745 | /* Consume the v. */ |
2746 | advance_char (dm); | |
2747 | else | |
eb383413 | 2748 | { |
74bcd529 DD |
2749 | /* Separate parameter types by commas. */ |
2750 | if (sequence > 0) | |
59666b35 | 2751 | RETURN_IF_ERROR (result_add (dm, ", ")); |
74bcd529 DD |
2752 | /* Demangle the type. */ |
2753 | RETURN_IF_ERROR (demangle_type (dm)); | |
eb383413 | 2754 | } |
eb383413 L |
2755 | } |
2756 | ||
2757 | ++sequence; | |
2758 | } | |
59666b35 | 2759 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
eb383413 | 2760 | |
74bcd529 DD |
2761 | /* We should have demangled at least one parameter type (which would |
2762 | be void, for a function that takes no parameters), plus the | |
2763 | return type, if we were supposed to demangle that. */ | |
2764 | if (sequence == -1) | |
2765 | return "Missing function return type."; | |
2766 | else if (sequence == 0) | |
2767 | return "Missing function parameter."; | |
2768 | ||
eb383413 L |
2769 | return STATUS_OK; |
2770 | } | |
2771 | ||
74bcd529 | 2772 | /* Demangles and emits a <class-enum-type>. *ENCODE_RETURN_TYPE is set to |
eb383413 L |
2773 | non-zero if the type is a template-id, zero otherwise. |
2774 | ||
2775 | <class-enum-type> ::= <name> */ | |
2776 | ||
2777 | static status_t | |
74bcd529 | 2778 | demangle_class_enum_type (dm, encode_return_type) |
eb383413 | 2779 | demangling_t dm; |
74bcd529 | 2780 | int *encode_return_type; |
eb383413 L |
2781 | { |
2782 | DEMANGLE_TRACE ("class-enum-type", dm); | |
2783 | ||
74bcd529 | 2784 | RETURN_IF_ERROR (demangle_name (dm, encode_return_type)); |
eb383413 L |
2785 | return STATUS_OK; |
2786 | } | |
2787 | ||
2788 | /* Demangles and emits an <array-type>. | |
2789 | ||
59666b35 DD |
2790 | If PTR_INSERT_POS is not NULL, the array type is formatted as a |
2791 | pointer or reference to an array, except that asterisk and | |
2792 | ampersand punctuation is omitted (since it's not know at this | |
2793 | point). *PTR_INSERT_POS is set to the position in the demangled | |
2794 | name at which this punctuation should be inserted. For example, | |
2795 | `A10_i' is demangled to `int () [10]' and *PTR_INSERT_POS points | |
2796 | between the parentheses. | |
2797 | ||
2798 | If PTR_INSERT_POS is NULL, the array type is assumed not to be | |
2799 | pointer- or reference-qualified. Then, for example, `A10_i' is | |
2800 | demangled simply as `int[10]'. | |
2801 | ||
74bcd529 DD |
2802 | <array-type> ::= A [<dimension number>] _ <element type> |
2803 | ::= A <dimension expression> _ <element type> */ | |
eb383413 L |
2804 | |
2805 | static status_t | |
59666b35 | 2806 | demangle_array_type (dm, ptr_insert_pos) |
eb383413 | 2807 | demangling_t dm; |
59666b35 | 2808 | int *ptr_insert_pos; |
eb383413 | 2809 | { |
74bcd529 DD |
2810 | status_t status = STATUS_OK; |
2811 | dyn_string_t array_size = NULL; | |
2812 | char peek; | |
03d5f569 | 2813 | |
59666b35 DD |
2814 | DEMANGLE_TRACE ("array-type", dm); |
2815 | ||
74bcd529 | 2816 | RETURN_IF_ERROR (demangle_char (dm, 'A')); |
eb383413 L |
2817 | |
2818 | /* Demangle the array size into array_size. */ | |
74bcd529 DD |
2819 | peek = peek_char (dm); |
2820 | if (peek == '_') | |
2821 | /* Array bound is omitted. This is a C99-style VLA. */ | |
2822 | ; | |
2823 | else if (IS_DIGIT (peek_char (dm))) | |
2824 | { | |
2825 | /* It looks like a constant array bound. */ | |
2826 | array_size = dyn_string_new (10); | |
2827 | if (array_size == NULL) | |
2828 | return STATUS_ALLOCATION_FAILED; | |
2829 | status = demangle_number_literally (dm, array_size, 10, 0); | |
2830 | } | |
2831 | else | |
2832 | { | |
2833 | /* Anything is must be an expression for a nont-constant array | |
2834 | bound. This happens if the array type occurs in a template | |
2835 | and the array bound references a template parameter. */ | |
2836 | RETURN_IF_ERROR (result_push (dm)); | |
2837 | RETURN_IF_ERROR (demangle_expression (dm)); | |
2838 | array_size = (dyn_string_t) result_pop (dm); | |
2839 | } | |
2840 | /* array_size may have been allocated by now, so we can't use | |
2841 | RETURN_IF_ERROR until it's been deallocated. */ | |
eb383413 L |
2842 | |
2843 | /* Demangle the base type of the array. */ | |
03d5f569 JM |
2844 | if (STATUS_NO_ERROR (status)) |
2845 | status = demangle_char (dm, '_'); | |
2846 | if (STATUS_NO_ERROR (status)) | |
2847 | status = demangle_type (dm); | |
eb383413 | 2848 | |
59666b35 DD |
2849 | if (ptr_insert_pos != NULL) |
2850 | { | |
2851 | /* This array is actually part of an pointer- or | |
2852 | reference-to-array type. Format appropriately, except we | |
2853 | don't know which and how much punctuation to use. */ | |
2854 | if (STATUS_NO_ERROR (status)) | |
2855 | status = result_add (dm, " () "); | |
2856 | /* Let the caller know where to insert the punctuation. */ | |
2857 | *ptr_insert_pos = result_caret_pos (dm) - 2; | |
2858 | } | |
2859 | ||
eb383413 | 2860 | /* Emit the array dimension syntax. */ |
03d5f569 | 2861 | if (STATUS_NO_ERROR (status)) |
59666b35 | 2862 | status = result_add_char (dm, '['); |
74bcd529 | 2863 | if (STATUS_NO_ERROR (status) && array_size != NULL) |
59666b35 | 2864 | status = result_add_string (dm, array_size); |
03d5f569 | 2865 | if (STATUS_NO_ERROR (status)) |
59666b35 | 2866 | status = result_add_char (dm, ']'); |
74bcd529 DD |
2867 | if (array_size != NULL) |
2868 | dyn_string_delete (array_size); | |
eb383413 | 2869 | |
03d5f569 JM |
2870 | RETURN_IF_ERROR (status); |
2871 | ||
eb383413 L |
2872 | return STATUS_OK; |
2873 | } | |
2874 | ||
74bcd529 | 2875 | /* Demangles and emits a <template-param>. |
eb383413 L |
2876 | |
2877 | <template-param> ::= T_ # first template parameter | |
2878 | ::= T <parameter-2 number> _ */ | |
2879 | ||
2880 | static status_t | |
74bcd529 | 2881 | demangle_template_param (dm) |
eb383413 | 2882 | demangling_t dm; |
eb383413 L |
2883 | { |
2884 | int parm_number; | |
2885 | template_arg_list_t current_arg_list = current_template_arg_list (dm); | |
2886 | string_list_t arg; | |
2887 | ||
2888 | DEMANGLE_TRACE ("template-param", dm); | |
2889 | ||
2890 | /* Make sure there is a template argmust list in which to look up | |
2891 | this parameter reference. */ | |
2892 | if (current_arg_list == NULL) | |
2893 | return "Template parameter outside of template."; | |
2894 | ||
2895 | RETURN_IF_ERROR (demangle_char (dm, 'T')); | |
2896 | if (peek_char (dm) == '_') | |
2897 | parm_number = 0; | |
2898 | else | |
2899 | { | |
2900 | RETURN_IF_ERROR (demangle_number (dm, &parm_number, 10, 0)); | |
2901 | ++parm_number; | |
2902 | } | |
2903 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
2904 | ||
2905 | arg = template_arg_list_get_arg (current_arg_list, parm_number); | |
2906 | if (arg == NULL) | |
2907 | /* parm_number exceeded the number of arguments in the current | |
2908 | template argument list. */ | |
2909 | return "Template parameter number out of bounds."; | |
59666b35 | 2910 | RETURN_IF_ERROR (result_add_string (dm, (dyn_string_t) arg)); |
eb383413 | 2911 | |
eb383413 L |
2912 | return STATUS_OK; |
2913 | } | |
2914 | ||
2915 | /* Demangles and emits a <template-args>. | |
2916 | ||
2917 | <template-args> ::= I <template-arg>+ E */ | |
2918 | ||
2919 | static status_t | |
2920 | demangle_template_args (dm) | |
2921 | demangling_t dm; | |
2922 | { | |
2923 | int first = 1; | |
03d5f569 | 2924 | dyn_string_t old_last_source_name; |
eb383413 L |
2925 | template_arg_list_t arg_list = template_arg_list_new (); |
2926 | ||
03d5f569 JM |
2927 | if (arg_list == NULL) |
2928 | return STATUS_ALLOCATION_FAILED; | |
2929 | ||
eb383413 | 2930 | /* Preserve the most recently demangled source name. */ |
03d5f569 | 2931 | old_last_source_name = dm->last_source_name; |
eb383413 L |
2932 | dm->last_source_name = dyn_string_new (0); |
2933 | ||
2934 | DEMANGLE_TRACE ("template-args", dm); | |
2935 | ||
03d5f569 JM |
2936 | if (dm->last_source_name == NULL) |
2937 | return STATUS_ALLOCATION_FAILED; | |
2938 | ||
eb383413 | 2939 | RETURN_IF_ERROR (demangle_char (dm, 'I')); |
74bcd529 | 2940 | RETURN_IF_ERROR (result_open_template_list (dm)); |
eb383413 L |
2941 | do |
2942 | { | |
2943 | string_list_t arg; | |
2944 | ||
2945 | if (first) | |
2946 | first = 0; | |
2947 | else | |
59666b35 | 2948 | RETURN_IF_ERROR (result_add (dm, ", ")); |
eb383413 L |
2949 | |
2950 | /* Capture the template arg. */ | |
03d5f569 | 2951 | RETURN_IF_ERROR (result_push (dm)); |
eb383413 L |
2952 | RETURN_IF_ERROR (demangle_template_arg (dm)); |
2953 | arg = result_pop (dm); | |
2954 | ||
2955 | /* Emit it in the demangled name. */ | |
59666b35 | 2956 | RETURN_IF_ERROR (result_add_string (dm, (dyn_string_t) arg)); |
eb383413 L |
2957 | |
2958 | /* Save it for use in expanding <template-param>s. */ | |
2959 | template_arg_list_add_arg (arg_list, arg); | |
2960 | } | |
2961 | while (peek_char (dm) != 'E'); | |
2962 | /* Append the '>'. */ | |
03d5f569 | 2963 | RETURN_IF_ERROR (result_close_template_list (dm)); |
eb383413 L |
2964 | |
2965 | /* Consume the 'E'. */ | |
2966 | advance_char (dm); | |
2967 | ||
2968 | /* Restore the most recent demangled source name. */ | |
2969 | dyn_string_delete (dm->last_source_name); | |
2970 | dm->last_source_name = old_last_source_name; | |
2971 | ||
2972 | /* Push the list onto the top of the stack of template argument | |
2973 | lists, so that arguments from it are used from now on when | |
2974 | expanding <template-param>s. */ | |
2975 | push_template_arg_list (dm, arg_list); | |
2976 | ||
2977 | return STATUS_OK; | |
2978 | } | |
2979 | ||
2980 | /* This function, which does not correspond to a production in the | |
2981 | mangling spec, handles the `literal' production for both | |
2982 | <template-arg> and <expr-primary>. It does not expect or consume | |
2983 | the initial `L' or final `E'. The demangling is given by: | |
2984 | ||
2985 | <literal> ::= <type> </value/ number> | |
2986 | ||
2987 | and the emitted output is `(type)number'. */ | |
2988 | ||
2989 | static status_t | |
2990 | demangle_literal (dm) | |
2991 | demangling_t dm; | |
2992 | { | |
eb383413 | 2993 | char peek = peek_char (dm); |
03d5f569 JM |
2994 | dyn_string_t value_string; |
2995 | status_t status; | |
eb383413 L |
2996 | |
2997 | DEMANGLE_TRACE ("literal", dm); | |
2998 | ||
2999 | if (!flag_verbose && peek >= 'a' && peek <= 'z') | |
3000 | { | |
3001 | /* If not in verbose mode and this is a builtin type, see if we | |
3002 | can produce simpler numerical output. In particular, for | |
3003 | integer types shorter than `long', just write the number | |
3004 | without type information; for bools, write `true' or `false'. | |
3005 | Other refinements could be made here too. */ | |
3006 | ||
3007 | /* This constant string is used to map from <builtin-type> codes | |
3008 | (26 letters of the alphabet) to codes that determine how the | |
3009 | value will be displayed. The codes are: | |
3010 | b: display as bool | |
3011 | i: display as int | |
3012 | l: display as long | |
3013 | A space means the value will be represented using cast | |
3014 | notation. */ | |
3015 | static const char *const code_map = "ibi iii ll ii i "; | |
3016 | ||
3017 | char code = code_map[peek - 'a']; | |
3018 | /* FIXME: Implement demangling of floats and doubles. */ | |
3019 | if (code == 'u') | |
3020 | return STATUS_UNIMPLEMENTED; | |
3021 | if (code == 'b') | |
3022 | { | |
3023 | /* It's a boolean. */ | |
3024 | char value; | |
3025 | ||
3026 | /* Consume the b. */ | |
3027 | advance_char (dm); | |
3028 | /* Look at the next character. It should be 0 or 1, | |
3029 | corresponding to false or true, respectively. */ | |
3030 | value = peek_char (dm); | |
3031 | if (value == '0') | |
59666b35 | 3032 | RETURN_IF_ERROR (result_add (dm, "false")); |
eb383413 | 3033 | else if (value == '1') |
59666b35 | 3034 | RETURN_IF_ERROR (result_add (dm, "true")); |
eb383413 L |
3035 | else |
3036 | return "Unrecognized bool constant."; | |
3037 | /* Consume the 0 or 1. */ | |
3038 | advance_char (dm); | |
3039 | return STATUS_OK; | |
3040 | } | |
3041 | else if (code == 'i' || code == 'l') | |
3042 | { | |
3043 | /* It's an integer or long. */ | |
3044 | ||
3045 | /* Consume the type character. */ | |
3046 | advance_char (dm); | |
03d5f569 | 3047 | |
eb383413 | 3048 | /* Demangle the number and write it out. */ |
03d5f569 JM |
3049 | value_string = dyn_string_new (0); |
3050 | status = demangle_number_literally (dm, value_string, 10, 1); | |
3051 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3052 | status = result_add_string (dm, value_string); |
eb383413 | 3053 | /* For long integers, append an l. */ |
03d5f569 | 3054 | if (code == 'l' && STATUS_NO_ERROR (status)) |
59666b35 | 3055 | status = result_add_char (dm, code); |
03d5f569 JM |
3056 | dyn_string_delete (value_string); |
3057 | ||
3058 | RETURN_IF_ERROR (status); | |
eb383413 L |
3059 | return STATUS_OK; |
3060 | } | |
3061 | /* ...else code == ' ', so fall through to represent this | |
3062 | literal's type explicitly using cast syntax. */ | |
3063 | } | |
3064 | ||
59666b35 | 3065 | RETURN_IF_ERROR (result_add_char (dm, '(')); |
eb383413 | 3066 | RETURN_IF_ERROR (demangle_type (dm)); |
59666b35 | 3067 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
03d5f569 JM |
3068 | |
3069 | value_string = dyn_string_new (0); | |
3070 | if (value_string == NULL) | |
3071 | return STATUS_ALLOCATION_FAILED; | |
eb383413 | 3072 | |
03d5f569 JM |
3073 | status = demangle_number_literally (dm, value_string, 10, 1); |
3074 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3075 | status = result_add_string (dm, value_string); |
03d5f569 JM |
3076 | dyn_string_delete (value_string); |
3077 | RETURN_IF_ERROR (status); | |
eb383413 L |
3078 | |
3079 | return STATUS_OK; | |
3080 | } | |
3081 | ||
3082 | /* Demangles and emits a <template-arg>. | |
3083 | ||
3084 | <template-arg> ::= <type> # type | |
3085 | ::= L <type> <value number> E # literal | |
3086 | ::= LZ <encoding> E # external name | |
3087 | ::= X <expression> E # expression */ | |
3088 | ||
3089 | static status_t | |
3090 | demangle_template_arg (dm) | |
3091 | demangling_t dm; | |
3092 | { | |
3093 | DEMANGLE_TRACE ("template-arg", dm); | |
3094 | ||
3095 | switch (peek_char (dm)) | |
3096 | { | |
3097 | case 'L': | |
3098 | advance_char (dm); | |
3099 | ||
3100 | if (peek_char (dm) == 'Z') | |
3101 | { | |
3102 | /* External name. */ | |
3103 | advance_char (dm); | |
3104 | /* FIXME: Standard is contradictory here. */ | |
3105 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
3106 | } | |
3107 | else | |
3108 | RETURN_IF_ERROR (demangle_literal (dm)); | |
3109 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
3110 | break; | |
3111 | ||
3112 | case 'X': | |
3113 | /* Expression. */ | |
3114 | advance_char (dm); | |
3115 | RETURN_IF_ERROR (demangle_expression (dm)); | |
74bcd529 | 3116 | RETURN_IF_ERROR (demangle_char (dm, 'E')); |
eb383413 L |
3117 | break; |
3118 | ||
3119 | default: | |
3120 | RETURN_IF_ERROR (demangle_type (dm)); | |
3121 | break; | |
3122 | } | |
3123 | ||
3124 | return STATUS_OK; | |
3125 | } | |
3126 | ||
3127 | /* Demangles and emits an <expression>. | |
3128 | ||
3129 | <expression> ::= <unary operator-name> <expression> | |
3130 | ::= <binary operator-name> <expression> <expression> | |
3131 | ::= <expr-primary> | |
3132 | ::= <scope-expression> */ | |
3133 | ||
3134 | static status_t | |
3135 | demangle_expression (dm) | |
3136 | demangling_t dm; | |
3137 | { | |
3138 | char peek = peek_char (dm); | |
3139 | ||
3140 | DEMANGLE_TRACE ("expression", dm); | |
3141 | ||
3142 | if (peek == 'L' || peek == 'T') | |
3143 | RETURN_IF_ERROR (demangle_expr_primary (dm)); | |
3144 | else if (peek == 's' && peek_char_next (dm) == 'r') | |
3145 | RETURN_IF_ERROR (demangle_scope_expression (dm)); | |
3146 | else | |
3147 | /* An operator expression. */ | |
3148 | { | |
3149 | int num_args; | |
03d5f569 | 3150 | status_t status = STATUS_OK; |
eb383413 L |
3151 | dyn_string_t operator_name; |
3152 | ||
3153 | /* We have an operator name. Since we want to output binary | |
3154 | operations in infix notation, capture the operator name | |
3155 | first. */ | |
03d5f569 | 3156 | RETURN_IF_ERROR (result_push (dm)); |
eb383413 L |
3157 | RETURN_IF_ERROR (demangle_operator_name (dm, 1, &num_args)); |
3158 | operator_name = (dyn_string_t) result_pop (dm); | |
3159 | ||
3160 | /* If it's binary, do an operand first. */ | |
3161 | if (num_args > 1) | |
3162 | { | |
59666b35 | 3163 | status = result_add_char (dm, '('); |
03d5f569 JM |
3164 | if (STATUS_NO_ERROR (status)) |
3165 | status = demangle_expression (dm); | |
3166 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3167 | status = result_add_char (dm, ')'); |
eb383413 L |
3168 | } |
3169 | ||
03d5f569 JM |
3170 | /* Emit the operator. */ |
3171 | if (STATUS_NO_ERROR (status)) | |
59666b35 | 3172 | status = result_add_string (dm, operator_name); |
eb383413 | 3173 | dyn_string_delete (operator_name); |
03d5f569 JM |
3174 | RETURN_IF_ERROR (status); |
3175 | ||
3176 | /* Emit its second (if binary) or only (if unary) operand. */ | |
59666b35 | 3177 | RETURN_IF_ERROR (result_add_char (dm, '(')); |
eb383413 | 3178 | RETURN_IF_ERROR (demangle_expression (dm)); |
59666b35 | 3179 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
eb383413 L |
3180 | |
3181 | /* The ternary operator takes a third operand. */ | |
3182 | if (num_args == 3) | |
3183 | { | |
59666b35 | 3184 | RETURN_IF_ERROR (result_add (dm, ":(")); |
eb383413 | 3185 | RETURN_IF_ERROR (demangle_expression (dm)); |
59666b35 | 3186 | RETURN_IF_ERROR (result_add_char (dm, ')')); |
eb383413 L |
3187 | } |
3188 | } | |
3189 | ||
3190 | return STATUS_OK; | |
3191 | } | |
3192 | ||
3193 | /* Demangles and emits a <scope-expression>. | |
3194 | ||
3195 | <scope-expression> ::= sr <qualifying type> <source-name> | |
3196 | ::= sr <qualifying type> <encoding> */ | |
3197 | ||
3198 | static status_t | |
3199 | demangle_scope_expression (dm) | |
3200 | demangling_t dm; | |
3201 | { | |
3202 | RETURN_IF_ERROR (demangle_char (dm, 's')); | |
3203 | RETURN_IF_ERROR (demangle_char (dm, 'r')); | |
3204 | RETURN_IF_ERROR (demangle_type (dm)); | |
59666b35 | 3205 | RETURN_IF_ERROR (result_add (dm, "::")); |
eb383413 L |
3206 | RETURN_IF_ERROR (demangle_encoding (dm)); |
3207 | return STATUS_OK; | |
3208 | } | |
3209 | ||
3210 | /* Demangles and emits an <expr-primary>. | |
3211 | ||
3212 | <expr-primary> ::= <template-param> | |
3213 | ::= L <type> <value number> E # literal | |
3214 | ::= L <mangled-name> E # external name */ | |
3215 | ||
3216 | static status_t | |
3217 | demangle_expr_primary (dm) | |
3218 | demangling_t dm; | |
3219 | { | |
3220 | char peek = peek_char (dm); | |
eb383413 L |
3221 | |
3222 | DEMANGLE_TRACE ("expr-primary", dm); | |
3223 | ||
3224 | if (peek == 'T') | |
74bcd529 | 3225 | RETURN_IF_ERROR (demangle_template_param (dm)); |
eb383413 L |
3226 | else if (peek == 'L') |
3227 | { | |
3228 | /* Consume the `L'. */ | |
3229 | advance_char (dm); | |
3230 | peek = peek_char (dm); | |
3231 | ||
3232 | if (peek == '_') | |
3233 | RETURN_IF_ERROR (demangle_mangled_name (dm)); | |
3234 | else | |
3235 | RETURN_IF_ERROR (demangle_literal (dm)); | |
3236 | ||
3237 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
3238 | } | |
3239 | else | |
3240 | return STATUS_ERROR; | |
3241 | ||
3242 | return STATUS_OK; | |
3243 | } | |
3244 | ||
3245 | /* Demangles and emits a <substitution>. Sets *TEMPLATE_P to non-zero | |
74bcd529 | 3246 | if the substitution is the name of a template, zero otherwise. |
eb383413 L |
3247 | |
3248 | <substitution> ::= S <seq-id> _ | |
3249 | ::= S_ | |
3250 | ||
3251 | ::= St # ::std:: | |
3252 | ::= Sa # ::std::allocator | |
3253 | ::= Sb # ::std::basic_string | |
3254 | ::= Ss # ::std::basic_string<char, | |
3255 | ::std::char_traits<char>, | |
3256 | ::std::allocator<char> > | |
3257 | ::= Si # ::std::basic_istream<char, | |
3258 | std::char_traits<char> > | |
3259 | ::= So # ::std::basic_ostream<char, | |
3260 | std::char_traits<char> > | |
3261 | ::= Sd # ::std::basic_iostream<char, | |
74bcd529 | 3262 | std::char_traits<char> > |
eb383413 L |
3263 | */ |
3264 | ||
3265 | static status_t | |
74bcd529 | 3266 | demangle_substitution (dm, template_p) |
eb383413 L |
3267 | demangling_t dm; |
3268 | int *template_p; | |
eb383413 L |
3269 | { |
3270 | int seq_id; | |
3271 | int peek; | |
3272 | dyn_string_t text; | |
3273 | ||
3274 | DEMANGLE_TRACE ("substitution", dm); | |
3275 | ||
3276 | RETURN_IF_ERROR (demangle_char (dm, 'S')); | |
eb383413 L |
3277 | |
3278 | /* Scan the substitution sequence index. A missing number denotes | |
3279 | the first index. */ | |
3280 | peek = peek_char (dm); | |
3281 | if (peek == '_') | |
3282 | seq_id = -1; | |
3283 | /* If the following character is 0-9 or a capital letter, interpret | |
3284 | the sequence up to the next underscore as a base-36 substitution | |
3285 | index. */ | |
03d5f569 | 3286 | else if (IS_DIGIT ((unsigned char) peek) |
eb383413 L |
3287 | || (peek >= 'A' && peek <= 'Z')) |
3288 | RETURN_IF_ERROR (demangle_number (dm, &seq_id, 36, 0)); | |
3289 | else | |
3290 | { | |
03d5f569 JM |
3291 | const char *new_last_source_name = NULL; |
3292 | ||
eb383413 L |
3293 | switch (peek) |
3294 | { | |
3295 | case 't': | |
59666b35 | 3296 | RETURN_IF_ERROR (result_add (dm, "std")); |
eb383413 L |
3297 | break; |
3298 | ||
3299 | case 'a': | |
59666b35 | 3300 | RETURN_IF_ERROR (result_add (dm, "std::allocator")); |
03d5f569 JM |
3301 | new_last_source_name = "allocator"; |
3302 | *template_p = 1; | |
eb383413 L |
3303 | break; |
3304 | ||
3305 | case 'b': | |
59666b35 | 3306 | RETURN_IF_ERROR (result_add (dm, "std::basic_string")); |
03d5f569 JM |
3307 | new_last_source_name = "basic_string"; |
3308 | *template_p = 1; | |
eb383413 L |
3309 | break; |
3310 | ||
3311 | case 's': | |
3312 | if (!flag_verbose) | |
3313 | { | |
59666b35 | 3314 | RETURN_IF_ERROR (result_add (dm, "std::string")); |
03d5f569 | 3315 | new_last_source_name = "string"; |
eb383413 L |
3316 | } |
3317 | else | |
3318 | { | |
59666b35 | 3319 | RETURN_IF_ERROR (result_add (dm, "std::basic_string<char, std::char_traits<char>, std::allocator<char> >")); |
03d5f569 | 3320 | new_last_source_name = "basic_string"; |
eb383413 | 3321 | } |
03d5f569 | 3322 | *template_p = 0; |
eb383413 L |
3323 | break; |
3324 | ||
3325 | case 'i': | |
3326 | if (!flag_verbose) | |
3327 | { | |
59666b35 | 3328 | RETURN_IF_ERROR (result_add (dm, "std::istream")); |
03d5f569 | 3329 | new_last_source_name = "istream"; |
eb383413 L |
3330 | } |
3331 | else | |
3332 | { | |
59666b35 | 3333 | RETURN_IF_ERROR (result_add (dm, "std::basic_istream<char, std::char_traints<char> >")); |
03d5f569 | 3334 | new_last_source_name = "basic_istream"; |
eb383413 | 3335 | } |
03d5f569 | 3336 | *template_p = 0; |
eb383413 L |
3337 | break; |
3338 | ||
3339 | case 'o': | |
3340 | if (!flag_verbose) | |
3341 | { | |
59666b35 | 3342 | RETURN_IF_ERROR (result_add (dm, "std::ostream")); |
03d5f569 | 3343 | new_last_source_name = "ostream"; |
eb383413 L |
3344 | } |
3345 | else | |
3346 | { | |
59666b35 | 3347 | RETURN_IF_ERROR (result_add (dm, "std::basic_ostream<char, std::char_traits<char> >")); |
03d5f569 | 3348 | new_last_source_name = "basic_ostream"; |
eb383413 | 3349 | } |
03d5f569 | 3350 | *template_p = 0; |
eb383413 L |
3351 | break; |
3352 | ||
3353 | case 'd': | |
3354 | if (!flag_verbose) | |
3355 | { | |
59666b35 | 3356 | RETURN_IF_ERROR (result_add (dm, "std::iostream")); |
03d5f569 | 3357 | new_last_source_name = "iostream"; |
eb383413 L |
3358 | } |
3359 | else | |
3360 | { | |
59666b35 | 3361 | RETURN_IF_ERROR (result_add (dm, "std::basic_iostream<char, std::char_traits<char> >")); |
03d5f569 | 3362 | new_last_source_name = "basic_iostream"; |
eb383413 | 3363 | } |
03d5f569 | 3364 | *template_p = 0; |
eb383413 L |
3365 | break; |
3366 | ||
3367 | default: | |
3368 | return "Unrecognized <substitution>."; | |
3369 | } | |
3370 | ||
03d5f569 | 3371 | /* Consume the character we just processed. */ |
eb383413 | 3372 | advance_char (dm); |
03d5f569 JM |
3373 | |
3374 | if (new_last_source_name != NULL) | |
3375 | { | |
3376 | if (!dyn_string_copy_cstr (dm->last_source_name, | |
3377 | new_last_source_name)) | |
3378 | return STATUS_ALLOCATION_FAILED; | |
3379 | } | |
3380 | ||
eb383413 L |
3381 | return STATUS_OK; |
3382 | } | |
3383 | ||
3384 | /* Look up the substitution text. Since `S_' is the most recent | |
3385 | substitution, `S0_' is the second-most-recent, etc., shift the | |
3386 | numbering by one. */ | |
3387 | text = substitution_get (dm, seq_id + 1, template_p); | |
03d5f569 | 3388 | if (text == NULL) |
eb383413 L |
3389 | return "Substitution number out of range."; |
3390 | ||
3391 | /* Emit the substitution text. */ | |
59666b35 | 3392 | RETURN_IF_ERROR (result_add_string (dm, text)); |
eb383413 L |
3393 | |
3394 | RETURN_IF_ERROR (demangle_char (dm, '_')); | |
3395 | return STATUS_OK; | |
3396 | } | |
3397 | ||
3398 | /* Demangles and emits a <local-name>. | |
3399 | ||
3400 | <local-name> := Z <function encoding> E <entity name> [<discriminator>] | |
3401 | := Z <function encoding> E s [<discriminator>] */ | |
3402 | ||
3403 | static status_t | |
3404 | demangle_local_name (dm) | |
3405 | demangling_t dm; | |
3406 | { | |
3407 | DEMANGLE_TRACE ("local-name", dm); | |
3408 | ||
3409 | RETURN_IF_ERROR (demangle_char (dm, 'Z')); | |
3410 | RETURN_IF_ERROR (demangle_encoding (dm)); | |
3411 | RETURN_IF_ERROR (demangle_char (dm, 'E')); | |
59666b35 | 3412 | RETURN_IF_ERROR (result_add (dm, "::")); |
eb383413 L |
3413 | |
3414 | if (peek_char (dm) == 's') | |
3415 | { | |
3416 | /* Local character string literal. */ | |
59666b35 | 3417 | RETURN_IF_ERROR (result_add (dm, "string literal")); |
eb383413 L |
3418 | /* Consume the s. */ |
3419 | advance_char (dm); | |
3420 | RETURN_IF_ERROR (demangle_discriminator (dm, 0)); | |
3421 | } | |
3422 | else | |
3423 | { | |
3424 | int unused; | |
eb383413 L |
3425 | /* Local name for some other entity. Demangle its name. */ |
3426 | RETURN_IF_ERROR (demangle_name (dm, &unused)); | |
3427 | RETURN_IF_ERROR (demangle_discriminator (dm, 1)); | |
3428 | } | |
3429 | ||
3430 | return STATUS_OK; | |
3431 | } | |
3432 | ||
3433 | /* Optimonally demangles and emits a <discriminator>. If there is no | |
3434 | <discriminator> at the current position in the mangled string, the | |
3435 | descriminator is assumed to be zero. Emit the discriminator number | |
3436 | in parentheses, unless SUPPRESS_FIRST is non-zero and the | |
3437 | discriminator is zero. | |
3438 | ||
3439 | <discriminator> ::= _ <number> */ | |
3440 | ||
3441 | static status_t | |
3442 | demangle_discriminator (dm, suppress_first) | |
3443 | demangling_t dm; | |
3444 | int suppress_first; | |
3445 | { | |
3446 | /* Output for <discriminator>s to the demangled name is completely | |
74bcd529 | 3447 | suppressed if not in verbose mode. */ |
eb383413 L |
3448 | |
3449 | if (peek_char (dm) == '_') | |
3450 | { | |
3451 | /* Consume the underscore. */ | |
3452 | advance_char (dm); | |
3453 | if (flag_verbose) | |
59666b35 | 3454 | RETURN_IF_ERROR (result_add (dm, " [#")); |
eb383413 | 3455 | /* Check if there's a number following the underscore. */ |
03d5f569 | 3456 | if (IS_DIGIT ((unsigned char) peek_char (dm))) |
eb383413 L |
3457 | { |
3458 | int discriminator; | |
3459 | /* Demangle the number. */ | |
3460 | RETURN_IF_ERROR (demangle_number (dm, &discriminator, 10, 0)); | |
3461 | if (flag_verbose) | |
3462 | /* Write the discriminator. The mangled number is two | |
3463 | less than the discriminator ordinal, counting from | |
3464 | zero. */ | |
079c672a | 3465 | RETURN_IF_ERROR (int_to_dyn_string (discriminator + 1, |
03d5f569 | 3466 | (dyn_string_t) dm->result)); |
eb383413 L |
3467 | } |
3468 | else | |
079c672a | 3469 | return STATUS_ERROR; |
eb383413 | 3470 | if (flag_verbose) |
59666b35 | 3471 | RETURN_IF_ERROR (result_add_char (dm, ']')); |
eb383413 L |
3472 | } |
3473 | else if (!suppress_first) | |
3474 | { | |
3475 | if (flag_verbose) | |
59666b35 | 3476 | RETURN_IF_ERROR (result_add (dm, " [#0]")); |
eb383413 L |
3477 | } |
3478 | ||
3479 | return STATUS_OK; | |
3480 | } | |
3481 | ||
3482 | /* Demangle NAME into RESULT, which must be an initialized | |
3483 | dyn_string_t. On success, returns STATUS_OK. On failure, returns | |
3484 | an error message, and the contents of RESULT are unchanged. */ | |
3485 | ||
3486 | static status_t | |
bc9bf259 | 3487 | cp_demangle (name, result, style) |
03d5f569 | 3488 | const char *name; |
eb383413 | 3489 | dyn_string_t result; |
bc9bf259 | 3490 | int style; |
eb383413 L |
3491 | { |
3492 | status_t status; | |
3493 | int length = strlen (name); | |
3494 | ||
3495 | if (length > 2 && name[0] == '_' && name[1] == 'Z') | |
3496 | { | |
bc9bf259 | 3497 | demangling_t dm = demangling_new (name, style); |
03d5f569 JM |
3498 | if (dm == NULL) |
3499 | return STATUS_ALLOCATION_FAILED; | |
eb383413 | 3500 | |
03d5f569 JM |
3501 | status = result_push (dm); |
3502 | if (status != STATUS_OK) | |
3503 | { | |
3504 | demangling_delete (dm); | |
3505 | return status; | |
3506 | } | |
eb383413 | 3507 | |
03d5f569 JM |
3508 | status = demangle_mangled_name (dm); |
3509 | if (STATUS_NO_ERROR (status)) | |
eb383413 L |
3510 | { |
3511 | dyn_string_t demangled = (dyn_string_t) result_pop (dm); | |
03d5f569 JM |
3512 | if (!dyn_string_copy (result, demangled)) |
3513 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
3514 | dyn_string_delete (demangled); |
3515 | } | |
3516 | ||
3517 | demangling_delete (dm); | |
3518 | } | |
3519 | else | |
3520 | { | |
3521 | /* It's evidently not a mangled C++ name. It could be the name | |
3522 | of something with C linkage, though, so just copy NAME into | |
3523 | RESULT. */ | |
03d5f569 JM |
3524 | if (!dyn_string_copy_cstr (result, name)) |
3525 | return STATUS_ALLOCATION_FAILED; | |
eb383413 L |
3526 | status = STATUS_OK; |
3527 | } | |
3528 | ||
03d5f569 JM |
3529 | return status; |
3530 | } | |
3531 | ||
3532 | /* Demangle TYPE_NAME into RESULT, which must be an initialized | |
3533 | dyn_string_t. On success, returns STATUS_OK. On failiure, returns | |
3534 | an error message, and the contents of RESULT are unchanged. */ | |
3535 | ||
74bcd529 | 3536 | #ifdef IN_LIBGCC2 |
03d5f569 JM |
3537 | static status_t |
3538 | cp_demangle_type (type_name, result) | |
3539 | const char* type_name; | |
3540 | dyn_string_t result; | |
3541 | { | |
3542 | status_t status; | |
3543 | demangling_t dm = demangling_new (type_name); | |
3544 | ||
3545 | if (dm == NULL) | |
3546 | return STATUS_ALLOCATION_FAILED; | |
3547 | ||
3548 | /* Demangle the type name. The demangled name is stored in dm. */ | |
3549 | status = result_push (dm); | |
3550 | if (status != STATUS_OK) | |
3551 | { | |
3552 | demangling_delete (dm); | |
3553 | return status; | |
3554 | } | |
3555 | ||
3556 | status = demangle_type (dm); | |
3557 | ||
3558 | if (STATUS_NO_ERROR (status)) | |
3559 | { | |
3560 | /* The demangling succeeded. Pop the result out of dm and copy | |
3561 | it into RESULT. */ | |
3562 | dyn_string_t demangled = (dyn_string_t) result_pop (dm); | |
3563 | if (!dyn_string_copy (result, demangled)) | |
3564 | return STATUS_ALLOCATION_FAILED; | |
3565 | dyn_string_delete (demangled); | |
3566 | } | |
3567 | ||
3568 | /* Clean up. */ | |
3569 | demangling_delete (dm); | |
3570 | ||
eb383413 L |
3571 | return status; |
3572 | } | |
3573 | ||
03d5f569 JM |
3574 | extern char *__cxa_demangle PARAMS ((const char *, char *, size_t *, int *)); |
3575 | ||
e49a569c | 3576 | /* ia64 ABI-mandated entry point in the C++ runtime library for performing |
03d5f569 JM |
3577 | demangling. MANGLED_NAME is a NUL-terminated character string |
3578 | containing the name to be demangled. | |
3579 | ||
3580 | OUTPUT_BUFFER is a region of memory, allocated with malloc, of | |
3581 | *LENGTH bytes, into which the demangled name is stored. If | |
3582 | OUTPUT_BUFFER is not long enough, it is expanded using realloc. | |
3583 | OUTPUT_BUFFER may instead be NULL; in that case, the demangled name | |
3584 | is placed in a region of memory allocated with malloc. | |
3585 | ||
3586 | If LENGTH is non-NULL, the length of the buffer conaining the | |
3587 | demangled name, is placed in *LENGTH. | |
3588 | ||
3589 | The return value is a pointer to the start of the NUL-terminated | |
3590 | demangled name, or NULL if the demangling fails. The caller is | |
3591 | responsible for deallocating this memory using free. | |
3592 | ||
3593 | *STATUS is set to one of the following values: | |
3594 | 0: The demangling operation succeeded. | |
3595 | -1: A memory allocation failiure occurred. | |
3596 | -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules. | |
3597 | -3: One of the arguments is invalid. | |
3598 | ||
3599 | The demagling is performed using the C++ ABI mangling rules, with | |
3600 | GNU extensions. */ | |
3601 | ||
3602 | char * | |
3603 | __cxa_demangle (mangled_name, output_buffer, length, status) | |
3604 | const char *mangled_name; | |
3605 | char *output_buffer; | |
3606 | size_t *length; | |
3607 | int *status; | |
3608 | { | |
3609 | struct dyn_string demangled_name; | |
3610 | status_t result; | |
3611 | ||
3612 | if (status == NULL) | |
3613 | return NULL; | |
3614 | ||
3615 | if (mangled_name == NULL) { | |
3616 | *status = -3; | |
3617 | return NULL; | |
3618 | } | |
3619 | ||
3620 | /* Did the caller provide a buffer for the demangled name? */ | |
3621 | if (output_buffer == NULL) { | |
3622 | /* No; dyn_string will malloc a buffer for us. */ | |
3623 | if (!dyn_string_init (&demangled_name, 0)) | |
3624 | { | |
3625 | *status = -1; | |
3626 | return NULL; | |
3627 | } | |
3628 | } | |
3629 | else { | |
3630 | /* Yes. Check that the length was provided. */ | |
3631 | if (length == NULL) { | |
3632 | *status = -3; | |
3633 | return NULL; | |
3634 | } | |
3635 | /* Install the buffer into a dyn_string. */ | |
3636 | demangled_name.allocated = *length; | |
3637 | demangled_name.length = 0; | |
3638 | demangled_name.s = output_buffer; | |
3639 | } | |
3640 | ||
3641 | if (mangled_name[0] == '_' && mangled_name[1] == 'Z') | |
3642 | /* MANGLED_NAME apprears to be a function or variable name. | |
3643 | Demangle it accordingly. */ | |
bc9bf259 | 3644 | result = cp_demangle (mangled_name, &demangled_name, 0); |
03d5f569 JM |
3645 | else |
3646 | /* Try to demangled MANGLED_NAME as the name of a type. */ | |
3647 | result = cp_demangle_type (mangled_name, &demangled_name); | |
3648 | ||
3649 | if (result == STATUS_OK) | |
3650 | /* The demangling succeeded. */ | |
3651 | { | |
3652 | /* If LENGTH isn't NULL, store the allocated buffer length | |
3653 | there; the buffer may have been realloced by dyn_string | |
3654 | functions. */ | |
3655 | if (length != NULL) | |
3656 | *length = demangled_name.allocated; | |
3657 | /* The operation was a success. */ | |
3658 | *status = 0; | |
3659 | return dyn_string_buf (&demangled_name); | |
3660 | } | |
3661 | else if (result == STATUS_ALLOCATION_FAILED) | |
3662 | /* A call to malloc or realloc failed during the demangling | |
3663 | operation. */ | |
3664 | { | |
3665 | *status = -1; | |
3666 | return NULL; | |
3667 | } | |
3668 | else | |
3669 | /* The demangling failed for another reason, most probably because | |
3670 | MANGLED_NAME isn't a valid mangled name. */ | |
3671 | { | |
3672 | /* If the buffer containing the demangled name wasn't provided | |
3673 | by the caller, free it. */ | |
3674 | if (output_buffer == NULL) | |
3675 | free (dyn_string_buf (&demangled_name)); | |
3676 | *status = -2; | |
3677 | return NULL; | |
3678 | } | |
3679 | } | |
3680 | ||
3681 | #else /* !IN_LIBGCC2 */ | |
3682 | ||
eb383413 L |
3683 | /* Variant entry point for integration with the existing cplus-dem |
3684 | demangler. Attempts to demangle MANGLED. If the demangling | |
3685 | succeeds, returns a buffer, allocated with malloc, containing the | |
3686 | demangled name. The caller must deallocate the buffer using free. | |
3687 | If the demangling failes, returns NULL. */ | |
3688 | ||
3689 | char * | |
e49a569c | 3690 | cplus_demangle_v3 (mangled) |
eb383413 L |
3691 | const char* mangled; |
3692 | { | |
849ee224 DD |
3693 | dyn_string_t demangled; |
3694 | status_t status; | |
3695 | ||
3696 | /* If this isn't a mangled name, don't pretend to demangle it. */ | |
3697 | if (strncmp (mangled, "_Z", 2) != 0) | |
3698 | return NULL; | |
3699 | ||
eb383413 | 3700 | /* Create a dyn_string to hold the demangled name. */ |
849ee224 | 3701 | demangled = dyn_string_new (0); |
eb383413 | 3702 | /* Attempt the demangling. */ |
bc9bf259 | 3703 | status = cp_demangle ((char *) mangled, demangled, 0); |
849ee224 | 3704 | |
03d5f569 | 3705 | if (STATUS_NO_ERROR (status)) |
eb383413 L |
3706 | /* Demangling succeeded. */ |
3707 | { | |
3708 | /* Grab the demangled result from the dyn_string. It was | |
3709 | allocated with malloc, so we can return it directly. */ | |
3710 | char *return_value = dyn_string_release (demangled); | |
eb383413 L |
3711 | /* Hand back the demangled name. */ |
3712 | return return_value; | |
3713 | } | |
03d5f569 JM |
3714 | else if (status == STATUS_ALLOCATION_FAILED) |
3715 | { | |
3716 | fprintf (stderr, "Memory allocation failed.\n"); | |
3717 | abort (); | |
3718 | } | |
eb383413 L |
3719 | else |
3720 | /* Demangling failed. */ | |
3721 | { | |
3722 | dyn_string_delete (demangled); | |
3723 | return NULL; | |
3724 | } | |
3725 | } | |
3726 | ||
bc9bf259 DD |
3727 | /* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling |
3728 | conventions, but the output formatting is a little different. | |
3729 | This instructs the C++ demangler not to emit pointer characters ("*"), and | |
3730 | to use Java's namespace separator symbol ("." instead of "::"). It then | |
3731 | does an additional pass over the demangled output to replace instances | |
3732 | of JArray<TYPE> with TYPE[]. */ | |
3733 | ||
3734 | char * | |
3735 | java_demangle_v3 (mangled) | |
3736 | const char* mangled; | |
3737 | { | |
3738 | dyn_string_t demangled; | |
3739 | char *next; | |
3740 | char *end; | |
3741 | int len; | |
3742 | status_t status; | |
3743 | int nesting = 0; | |
3744 | char *cplus_demangled; | |
3745 | char *return_value; | |
3746 | ||
3747 | /* Create a dyn_string to hold the demangled name. */ | |
3748 | demangled = dyn_string_new (0); | |
3749 | ||
3750 | /* Attempt the demangling. */ | |
3751 | status = cp_demangle ((char *) mangled, demangled, DMGL_JAVA); | |
3752 | ||
3753 | if (STATUS_NO_ERROR (status)) | |
3754 | /* Demangling succeeded. */ | |
3755 | { | |
3756 | /* Grab the demangled result from the dyn_string. */ | |
3757 | cplus_demangled = dyn_string_release (demangled); | |
3758 | } | |
3759 | else if (status == STATUS_ALLOCATION_FAILED) | |
3760 | { | |
3761 | fprintf (stderr, "Memory allocation failed.\n"); | |
3762 | abort (); | |
3763 | } | |
3764 | else | |
3765 | /* Demangling failed. */ | |
3766 | { | |
3767 | dyn_string_delete (demangled); | |
3768 | return NULL; | |
3769 | } | |
3770 | ||
3771 | len = strlen (cplus_demangled); | |
3772 | next = cplus_demangled; | |
3773 | end = next + len; | |
3774 | demangled = NULL; | |
3775 | ||
3776 | /* Replace occurances of JArray<TYPE> with TYPE[]. */ | |
3777 | while (next < end) | |
3778 | { | |
3779 | char *open_str = strstr (next, "JArray<"); | |
3780 | char *close_str = NULL; | |
3781 | if (nesting > 0) | |
3782 | close_str = strchr (next, '>'); | |
3783 | ||
3784 | if (open_str != NULL && (close_str == NULL || close_str > open_str)) | |
3785 | { | |
3786 | ++nesting; | |
3787 | ||
3788 | if (!demangled) | |
3789 | demangled = dyn_string_new(len); | |
3790 | ||
3791 | /* Copy prepending symbols, if any. */ | |
3792 | if (open_str > next) | |
3793 | { | |
3794 | open_str[0] = 0; | |
3795 | dyn_string_append_cstr (demangled, next); | |
3796 | } | |
3797 | next = open_str + 7; | |
3798 | } | |
3799 | else if (close_str != NULL) | |
3800 | { | |
3801 | --nesting; | |
3802 | ||
3803 | /* Copy prepending type symbol, if any. Squash any spurious | |
3804 | whitespace. */ | |
3805 | if (close_str > next && next[0] != ' ') | |
3806 | { | |
3807 | close_str[0] = 0; | |
3808 | dyn_string_append_cstr (demangled, next); | |
3809 | } | |
3810 | dyn_string_append_cstr (demangled, "[]"); | |
3811 | next = close_str + 1; | |
3812 | } | |
3813 | else | |
3814 | { | |
3815 | /* There are no more arrays. Copy the rest of the symbol, or | |
3816 | simply return the original symbol if no changes were made. */ | |
3817 | if (next == cplus_demangled) | |
3818 | return cplus_demangled; | |
3819 | ||
3820 | dyn_string_append_cstr (demangled, next); | |
3821 | next = end; | |
3822 | } | |
3823 | } | |
3824 | ||
3825 | free (cplus_demangled); | |
3826 | ||
3827 | return_value = dyn_string_release (demangled); | |
3828 | return return_value; | |
3829 | } | |
3830 | ||
03d5f569 JM |
3831 | #endif /* IN_LIBGCC2 */ |
3832 | ||
e61231f1 JB |
3833 | |
3834 | /* Demangle NAME in the G++ V3 ABI demangling style, and return either | |
3835 | zero, indicating that some error occurred, or a demangling_t | |
3836 | holding the results. */ | |
3837 | static demangling_t | |
457161bf DD |
3838 | demangle_v3_with_details (name) |
3839 | const char *name; | |
e61231f1 JB |
3840 | { |
3841 | demangling_t dm; | |
3842 | status_t status; | |
3843 | ||
3844 | if (strncmp (name, "_Z", 2)) | |
3845 | return 0; | |
3846 | ||
3847 | dm = demangling_new (name, DMGL_GNU_V3); | |
3848 | if (dm == NULL) | |
3849 | { | |
3850 | fprintf (stderr, "Memory allocation failed.\n"); | |
3851 | abort (); | |
3852 | } | |
3853 | ||
3854 | status = result_push (dm); | |
3855 | if (! STATUS_NO_ERROR (status)) | |
3856 | { | |
3857 | demangling_delete (dm); | |
3858 | fprintf (stderr, "%s\n", status); | |
3859 | abort (); | |
3860 | } | |
3861 | ||
3862 | status = demangle_mangled_name (dm); | |
3863 | if (STATUS_NO_ERROR (status)) | |
3864 | return dm; | |
3865 | ||
3866 | demangling_delete (dm); | |
3867 | return 0; | |
3868 | } | |
3869 | ||
3870 | ||
3871 | /* Return non-zero iff NAME is the mangled form of a constructor name | |
3872 | in the G++ V3 ABI demangling style. Specifically, return: | |
3873 | - '1' if NAME is a complete object constructor, | |
3874 | - '2' if NAME is a base object constructor, or | |
3875 | - '3' if NAME is a complete object allocating constructor. */ | |
3876 | enum gnu_v3_ctor_kinds | |
457161bf DD |
3877 | is_gnu_v3_mangled_ctor (name) |
3878 | const char *name; | |
e61231f1 JB |
3879 | { |
3880 | demangling_t dm = demangle_v3_with_details (name); | |
3881 | ||
3882 | if (dm) | |
3883 | { | |
3884 | enum gnu_v3_ctor_kinds result = dm->is_constructor; | |
3885 | demangling_delete (dm); | |
3886 | return result; | |
3887 | } | |
3888 | else | |
3889 | return 0; | |
3890 | } | |
3891 | ||
3892 | ||
3893 | /* Return non-zero iff NAME is the mangled form of a destructor name | |
3894 | in the G++ V3 ABI demangling style. Specifically, return: | |
3895 | - '0' if NAME is a deleting destructor, | |
3896 | - '1' if NAME is a complete object destructor, or | |
3897 | - '2' if NAME is a base object destructor. */ | |
3898 | enum gnu_v3_dtor_kinds | |
457161bf DD |
3899 | is_gnu_v3_mangled_dtor (name) |
3900 | const char *name; | |
e61231f1 JB |
3901 | { |
3902 | demangling_t dm = demangle_v3_with_details (name); | |
3903 | ||
3904 | if (dm) | |
3905 | { | |
3906 | enum gnu_v3_dtor_kinds result = dm->is_destructor; | |
3907 | demangling_delete (dm); | |
3908 | return result; | |
3909 | } | |
3910 | else | |
3911 | return 0; | |
3912 | } | |
3913 | ||
3914 | ||
eb383413 L |
3915 | #ifdef STANDALONE_DEMANGLER |
3916 | ||
3917 | #include "getopt.h" | |
3918 | ||
3919 | static void print_usage | |
3920 | PARAMS ((FILE* fp, int exit_value)); | |
3921 | ||
3922 | /* Non-zero if CHAR is a character than can occur in a mangled name. */ | |
3923 | #define is_mangled_char(CHAR) \ | |
74bcd529 DD |
3924 | (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \ |
3925 | || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$') | |
eb383413 L |
3926 | |
3927 | /* The name of this program, as invoked. */ | |
3928 | const char* program_name; | |
3929 | ||
3930 | /* Prints usage summary to FP and then exits with EXIT_VALUE. */ | |
3931 | ||
3932 | static void | |
3933 | print_usage (fp, exit_value) | |
3934 | FILE* fp; | |
3935 | int exit_value; | |
3936 | { | |
3937 | fprintf (fp, "Usage: %s [options] [names ...]\n", program_name); | |
74bcd529 | 3938 | fprintf (fp, "Options:\n"); |
eb383413 L |
3939 | fprintf (fp, " -h,--help Display this message.\n"); |
3940 | fprintf (fp, " -s,--strict Demangle standard names only.\n"); | |
3941 | fprintf (fp, " -v,--verbose Produce verbose demanglings.\n"); | |
3942 | fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n"); | |
3943 | ||
3944 | exit (exit_value); | |
3945 | } | |
3946 | ||
3947 | /* Option specification for getopt_long. */ | |
3948 | static struct option long_options[] = | |
3949 | { | |
3950 | { "help", no_argument, NULL, 'h' }, | |
3951 | { "strict", no_argument, NULL, 's' }, | |
3952 | { "verbose", no_argument, NULL, 'v' }, | |
3953 | { NULL, no_argument, NULL, 0 }, | |
3954 | }; | |
3955 | ||
3956 | /* Main entry for a demangling filter executable. It will demangle | |
3957 | its command line arguments, if any. If none are provided, it will | |
3958 | filter stdin to stdout, replacing any recognized mangled C++ names | |
3959 | with their demangled equivalents. */ | |
3960 | ||
3961 | int | |
3962 | main (argc, argv) | |
3963 | int argc; | |
3964 | char *argv[]; | |
3965 | { | |
3966 | status_t status; | |
3967 | int i; | |
3968 | int opt_char; | |
3969 | ||
3970 | /* Use the program name of this program, as invoked. */ | |
3971 | program_name = argv[0]; | |
3972 | ||
3973 | /* Parse options. */ | |
3974 | do | |
3975 | { | |
3976 | opt_char = getopt_long (argc, argv, "hsv", long_options, NULL); | |
3977 | switch (opt_char) | |
3978 | { | |
3979 | case '?': /* Unrecognized option. */ | |
3980 | print_usage (stderr, 1); | |
3981 | break; | |
3982 | ||
3983 | case 'h': | |
3984 | print_usage (stdout, 0); | |
3985 | break; | |
3986 | ||
3987 | case 's': | |
3988 | flag_strict = 1; | |
3989 | break; | |
3990 | ||
3991 | case 'v': | |
3992 | flag_verbose = 1; | |
3993 | break; | |
3994 | } | |
3995 | } | |
3996 | while (opt_char != -1); | |
3997 | ||
3998 | if (optind == argc) | |
3999 | /* No command line arguments were provided. Filter stdin. */ | |
4000 | { | |
4001 | dyn_string_t mangled = dyn_string_new (3); | |
4002 | dyn_string_t demangled = dyn_string_new (0); | |
4003 | status_t status; | |
4004 | ||
4005 | /* Read all of input. */ | |
4006 | while (!feof (stdin)) | |
4007 | { | |
4008 | char c = getchar (); | |
4009 | ||
4010 | /* The first character of a mangled name is an underscore. */ | |
4011 | if (feof (stdin)) | |
4012 | break; | |
4013 | if (c != '_') | |
4014 | { | |
4015 | /* It's not a mangled name. Print the character and go | |
4016 | on. */ | |
4017 | putchar (c); | |
4018 | continue; | |
4019 | } | |
4020 | c = getchar (); | |
4021 | ||
4022 | /* The second character of a mangled name is a capital `Z'. */ | |
4023 | if (feof (stdin)) | |
4024 | break; | |
4025 | if (c != 'Z') | |
4026 | { | |
4027 | /* It's not a mangled name. Print the previous | |
4028 | underscore, the `Z', and go on. */ | |
4029 | putchar ('_'); | |
4030 | putchar (c); | |
4031 | continue; | |
4032 | } | |
4033 | ||
4034 | /* Start keeping track of the candidate mangled name. */ | |
4035 | dyn_string_append_char (mangled, '_'); | |
4036 | dyn_string_append_char (mangled, 'Z'); | |
4037 | ||
4038 | /* Pile characters into mangled until we hit one that can't | |
4039 | occur in a mangled name. */ | |
4040 | c = getchar (); | |
4041 | while (!feof (stdin) && is_mangled_char (c)) | |
4042 | { | |
4043 | dyn_string_append_char (mangled, c); | |
4044 | if (feof (stdin)) | |
4045 | break; | |
4046 | c = getchar (); | |
4047 | } | |
4048 | ||
4049 | /* Attempt to demangle the name. */ | |
bc9bf259 | 4050 | status = cp_demangle (dyn_string_buf (mangled), demangled, 0); |
eb383413 L |
4051 | |
4052 | /* If the demangling succeeded, great! Print out the | |
4053 | demangled version. */ | |
03d5f569 | 4054 | if (STATUS_NO_ERROR (status)) |
eb383413 | 4055 | fputs (dyn_string_buf (demangled), stdout); |
03d5f569 JM |
4056 | /* Abort on allocation failures. */ |
4057 | else if (status == STATUS_ALLOCATION_FAILED) | |
4058 | { | |
4059 | fprintf (stderr, "Memory allocation failed.\n"); | |
4060 | abort (); | |
4061 | } | |
eb383413 L |
4062 | /* Otherwise, it might not have been a mangled name. Just |
4063 | print out the original text. */ | |
4064 | else | |
4065 | fputs (dyn_string_buf (mangled), stdout); | |
4066 | ||
4067 | /* If we haven't hit EOF yet, we've read one character that | |
4068 | can't occur in a mangled name, so print it out. */ | |
4069 | if (!feof (stdin)) | |
4070 | putchar (c); | |
4071 | ||
4072 | /* Clear the candidate mangled name, to start afresh next | |
4073 | time we hit a `_Z'. */ | |
4074 | dyn_string_clear (mangled); | |
4075 | } | |
4076 | ||
4077 | dyn_string_delete (mangled); | |
4078 | dyn_string_delete (demangled); | |
4079 | } | |
4080 | else | |
4081 | /* Demangle command line arguments. */ | |
4082 | { | |
4083 | dyn_string_t result = dyn_string_new (0); | |
4084 | ||
4085 | /* Loop over command line arguments. */ | |
4086 | for (i = optind; i < argc; ++i) | |
4087 | { | |
4088 | /* Attempt to demangle. */ | |
bc9bf259 | 4089 | status = cp_demangle (argv[i], result, 0); |
eb383413 L |
4090 | |
4091 | /* If it worked, print the demangled name. */ | |
03d5f569 | 4092 | if (STATUS_NO_ERROR (status)) |
eb383413 | 4093 | printf ("%s\n", dyn_string_buf (result)); |
03d5f569 JM |
4094 | /* Abort on allocaiton failures. */ |
4095 | else if (status == STATUS_ALLOCATION_FAILED) | |
4096 | { | |
bc9bf259 | 4097 | fprintf (stderr, "Memory allocation failed.\n"); |
03d5f569 JM |
4098 | abort (); |
4099 | } | |
eb383413 L |
4100 | /* If not, print the error message to stderr instead. */ |
4101 | else | |
4102 | fprintf (stderr, "%s\n", status); | |
4103 | } | |
4104 | dyn_string_delete (result); | |
4105 | } | |
4106 | ||
4107 | return 0; | |
4108 | } | |
4109 | ||
4110 | #endif /* STANDALONE_DEMANGLER */ |