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Fix various latent issues revealed by P0732 work.
[thirdparty/gcc.git] / libiberty / cp-demangle.c
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1b4974e7 1/* Demangler for g++ V3 ABI.
8e8f6434 2 Copyright (C) 2003-2018 Free Software Foundation, Inc.
1b4974e7 3 Written by Ian Lance Taylor <ian@wasabisystems.com>.
168d63e5 4
484e4040 5 This file is part of the libiberty library, which is part of GCC.
09656987 6
484e4040 7 This file is free software; you can redistribute it and/or modify
168d63e5 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
8916275c 12 In addition to the permissions in the GNU General Public License, the
13 Free Software Foundation gives you unlimited permission to link the
14 compiled version of this file into combinations with other programs,
15 and to distribute those combinations without any restriction coming
16 from the use of this file. (The General Public License restrictions
17 do apply in other respects; for example, they cover modification of
18 the file, and distribution when not linked into a combined
19 executable.)
20
168d63e5 21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
25
26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
95b8d1bc 28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
168d63e5 29*/
30
3c87c5c3 31/* This code implements a demangler for the g++ V3 ABI. The ABI is
32 described on this web page:
e77fdc26 33 https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling
3c87c5c3 34
35 This code was written while looking at the demangler written by
36 Alex Samuel <samuel@codesourcery.com>.
37
38 This code first pulls the mangled name apart into a list of
39 components, and then walks the list generating the demangled
40 name.
41
42 This file will normally define the following functions, q.v.:
43 char *cplus_demangle_v3(const char *mangled, int options)
44 char *java_demangle_v3(const char *mangled)
611fc3d0 45 int cplus_demangle_v3_callback(const char *mangled, int options,
46 demangle_callbackref callback)
47 int java_demangle_v3_callback(const char *mangled,
48 demangle_callbackref callback)
3c87c5c3 49 enum gnu_v3_ctor_kinds is_gnu_v3_mangled_ctor (const char *name)
50 enum gnu_v3_dtor_kinds is_gnu_v3_mangled_dtor (const char *name)
51
f95cb811 52 Also, the interface to the component list is public, and defined in
53 demangle.h. The interface consists of these types, which are
54 defined in demangle.h:
55 enum demangle_component_type
56 struct demangle_component
611fc3d0 57 demangle_callbackref
f95cb811 58 and these functions defined in this file:
59 cplus_demangle_fill_name
60 cplus_demangle_fill_extended_operator
61 cplus_demangle_fill_ctor
62 cplus_demangle_fill_dtor
63 cplus_demangle_print
611fc3d0 64 cplus_demangle_print_callback
f95cb811 65 and other functions defined in the file cp-demint.c.
66
67 This file also defines some other functions and variables which are
68 only to be used by the file cp-demint.c.
69
3c87c5c3 70 Preprocessor macros you can define while compiling this file:
71
72 IN_LIBGCC2
611fc3d0 73 If defined, this file defines the following functions, q.v.:
3c87c5c3 74 char *__cxa_demangle (const char *mangled, char *buf, size_t *len,
75 int *status)
611fc3d0 76 int __gcclibcxx_demangle_callback (const char *,
77 void (*)
78 (const char *, size_t, void *),
79 void *)
80 instead of cplus_demangle_v3[_callback]() and
81 java_demangle_v3[_callback]().
3c87c5c3 82
83 IN_GLIBCPP_V3
611fc3d0 84 If defined, this file defines only __cxa_demangle() and
85 __gcclibcxx_demangle_callback(), and no other publically visible
86 functions or variables.
3c87c5c3 87
88 STANDALONE_DEMANGLER
89 If defined, this file defines a main() function which demangles
90 any arguments, or, if none, demangles stdin.
91
92 CP_DEMANGLE_DEBUG
93 If defined, turns on debugging mode, which prints information on
94 stdout about the mangled string. This is not generally useful.
9f82fcbc 95
96 CHECK_DEMANGLER
97 If defined, additional sanity checks will be performed. It will
98 cause some slowdown, but will allow to catch out-of-bound access
99 errors earlier. This macro is intended for testing and debugging. */
3c87c5c3 100
611fc3d0 101#if defined (_AIX) && !defined (__GNUC__)
102 #pragma alloca
103#endif
104
168d63e5 105#ifdef HAVE_CONFIG_H
106#include "config.h"
107#endif
108
1b4974e7 109#include <stdio.h>
68e6b6e1 110
168d63e5 111#ifdef HAVE_STDLIB_H
112#include <stdlib.h>
113#endif
168d63e5 114#ifdef HAVE_STRING_H
115#include <string.h>
116#endif
117
611fc3d0 118#ifdef HAVE_ALLOCA_H
119# include <alloca.h>
120#else
121# ifndef alloca
122# ifdef __GNUC__
123# define alloca __builtin_alloca
124# else
125extern char *alloca ();
126# endif /* __GNUC__ */
127# endif /* alloca */
128#endif /* HAVE_ALLOCA_H */
129
7d235b1b 130#ifdef HAVE_LIMITS_H
131#include <limits.h>
132#endif
133#ifndef INT_MAX
134# define INT_MAX (int)(((unsigned int) ~0) >> 1) /* 0x7FFFFFFF */
135#endif
136
168d63e5 137#include "ansidecl.h"
138#include "libiberty.h"
4b7bc488 139#include "demangle.h"
f95cb811 140#include "cp-demangle.h"
141
142/* If IN_GLIBCPP_V3 is defined, some functions are made static. We
143 also rename them via #define to avoid compiler errors when the
144 static definition conflicts with the extern declaration in a header
145 file. */
146#ifdef IN_GLIBCPP_V3
147
148#define CP_STATIC_IF_GLIBCPP_V3 static
149
150#define cplus_demangle_fill_name d_fill_name
d94aaf66 151static int d_fill_name (struct demangle_component *, const char *, int);
f95cb811 152
153#define cplus_demangle_fill_extended_operator d_fill_extended_operator
154static int
d94aaf66 155d_fill_extended_operator (struct demangle_component *, int,
156 struct demangle_component *);
f95cb811 157
158#define cplus_demangle_fill_ctor d_fill_ctor
159static int
d94aaf66 160d_fill_ctor (struct demangle_component *, enum gnu_v3_ctor_kinds,
161 struct demangle_component *);
f95cb811 162
163#define cplus_demangle_fill_dtor d_fill_dtor
164static int
d94aaf66 165d_fill_dtor (struct demangle_component *, enum gnu_v3_dtor_kinds,
166 struct demangle_component *);
f95cb811 167
168#define cplus_demangle_mangled_name d_mangled_name
d94aaf66 169static struct demangle_component *d_mangled_name (struct d_info *, int);
f95cb811 170
171#define cplus_demangle_type d_type
d94aaf66 172static struct demangle_component *d_type (struct d_info *);
f95cb811 173
174#define cplus_demangle_print d_print
a664c62c 175static char *d_print (int, struct demangle_component *, int, size_t *);
f95cb811 176
611fc3d0 177#define cplus_demangle_print_callback d_print_callback
a664c62c 178static int d_print_callback (int, struct demangle_component *,
611fc3d0 179 demangle_callbackref, void *);
180
f95cb811 181#define cplus_demangle_init_info d_init_info
d94aaf66 182static void d_init_info (const char *, int, size_t, struct d_info *);
f95cb811 183
184#else /* ! defined(IN_GLIBCPP_V3) */
185#define CP_STATIC_IF_GLIBCPP_V3
186#endif /* ! defined(IN_GLIBCPP_V3) */
168d63e5 187
2c0843db 188/* See if the compiler supports dynamic arrays. */
189
190#ifdef __GNUC__
191#define CP_DYNAMIC_ARRAYS
192#else
193#ifdef __STDC__
194#ifdef __STDC_VERSION__
195#if __STDC_VERSION__ >= 199901L
196#define CP_DYNAMIC_ARRAYS
197#endif /* __STDC__VERSION >= 199901L */
198#endif /* defined (__STDC_VERSION__) */
199#endif /* defined (__STDC__) */
200#endif /* ! defined (__GNUC__) */
201
3c87c5c3 202/* We avoid pulling in the ctype tables, to prevent pulling in
203 additional unresolved symbols when this code is used in a library.
204 FIXME: Is this really a valid reason? This comes from the original
205 V3 demangler code.
1b4974e7 206
3c87c5c3 207 As of this writing this file has the following undefined references
611fc3d0 208 when compiled with -DIN_GLIBCPP_V3: realloc, free, memcpy, strcpy,
209 strcat, strlen. */
1b4974e7 210
1b4974e7 211#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
3c87c5c3 212#define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z')
213#define IS_LOWER(c) ((c) >= 'a' && (c) <= 'z')
140d75d7 214
40e00cb0 215/* The prefix prepended by GCC to an identifier represnting the
216 anonymous namespace. */
217#define ANONYMOUS_NAMESPACE_PREFIX "_GLOBAL_"
1b4974e7 218#define ANONYMOUS_NAMESPACE_PREFIX_LEN \
219 (sizeof (ANONYMOUS_NAMESPACE_PREFIX) - 1)
40e00cb0 220
b69d25f7 221/* Information we keep for the standard substitutions. */
222
223struct d_standard_sub_info
224{
225 /* The code for this substitution. */
226 char code;
227 /* The simple string it expands to. */
228 const char *simple_expansion;
2c0843db 229 /* The length of the simple expansion. */
230 int simple_len;
b69d25f7 231 /* The results of a full, verbose, expansion. This is used when
232 qualifying a constructor/destructor, or when in verbose mode. */
233 const char *full_expansion;
2c0843db 234 /* The length of the full expansion. */
235 int full_len;
b69d25f7 236 /* What to set the last_name field of d_info to; NULL if we should
237 not set it. This is only relevant when qualifying a
238 constructor/destructor. */
239 const char *set_last_name;
2c0843db 240 /* The length of set_last_name. */
241 int set_last_name_len;
b69d25f7 242};
243
f95cb811 244/* Accessors for subtrees of struct demangle_component. */
168d63e5 245
1b4974e7 246#define d_left(dc) ((dc)->u.s_binary.left)
247#define d_right(dc) ((dc)->u.s_binary.right)
248
1b4974e7 249/* A list of templates. This is used while printing. */
168d63e5 250
1b4974e7 251struct d_print_template
252{
253 /* Next template on the list. */
254 struct d_print_template *next;
255 /* This template. */
f2d737fc 256 const struct demangle_component *template_decl;
1b4974e7 257};
168d63e5 258
1b4974e7 259/* A list of type modifiers. This is used while printing. */
168d63e5 260
1b4974e7 261struct d_print_mod
262{
263 /* Next modifier on the list. These are in the reverse of the order
264 in which they appeared in the mangled string. */
265 struct d_print_mod *next;
266 /* The modifier. */
a664c62c 267 struct demangle_component *mod;
1b4974e7 268 /* Whether this modifier was printed. */
269 int printed;
c1ea6f0c 270 /* The list of templates which applies to this modifier. */
271 struct d_print_template *templates;
1b4974e7 272};
168d63e5 273
611fc3d0 274/* We use these structures to hold information during printing. */
1b4974e7 275
611fc3d0 276struct d_growable_string
1b4974e7 277{
1b4974e7 278 /* Buffer holding the result. */
279 char *buf;
280 /* Current length of data in buffer. */
281 size_t len;
282 /* Allocated size of buffer. */
283 size_t alc;
611fc3d0 284 /* Set to 1 if we had a memory allocation failure. */
285 int allocation_failure;
286};
287
bb6c1235 288/* Stack of components, innermost first, used to avoid loops. */
289
290struct d_component_stack
291{
292 /* This component. */
293 const struct demangle_component *dc;
294 /* This component's parent. */
295 const struct d_component_stack *parent;
296};
297
a5ec7a66 298/* A demangle component and some scope captured when it was first
299 traversed. */
300
301struct d_saved_scope
302{
303 /* The component whose scope this is. */
304 const struct demangle_component *container;
305 /* The list of templates, if any, that was current when this
306 scope was captured. */
307 struct d_print_template *templates;
308};
309
f89ffc3b 310/* Checkpoint structure to allow backtracking. This holds copies
311 of the fields of struct d_info that need to be restored
312 if a trial parse needs to be backtracked over. */
313
314struct d_info_checkpoint
315{
316 const char *n;
317 int next_comp;
318 int next_sub;
f89ffc3b 319 int expansion;
320};
321
b4cd77b1 322/* Maximum number of times d_print_comp may be called recursively. */
323#define MAX_RECURSION_COUNT 1024
324
611fc3d0 325enum { D_PRINT_BUFFER_LENGTH = 256 };
326struct d_print_info
327{
611fc3d0 328 /* Fixed-length allocated buffer for demangled data, flushed to the
329 callback with a NUL termination once full. */
330 char buf[D_PRINT_BUFFER_LENGTH];
331 /* Current length of data in buffer. */
332 size_t len;
333 /* The last character printed, saved individually so that it survives
334 any buffer flush. */
335 char last_char;
336 /* Callback function to handle demangled buffer flush. */
337 demangle_callbackref callback;
338 /* Opaque callback argument. */
339 void *opaque;
1b4974e7 340 /* The current list of templates, if any. */
341 struct d_print_template *templates;
342 /* The current list of modifiers (e.g., pointer, reference, etc.),
343 if any. */
344 struct d_print_mod *modifiers;
611fc3d0 345 /* Set to 1 if we saw a demangling error. */
346 int demangle_failure;
b4cd77b1 347 /* Number of times d_print_comp was recursively called. Should not
348 be bigger than MAX_RECURSION_COUNT. */
349 int recursion;
b35d5d07 350 /* Non-zero if we're printing a lambda argument. A template
351 parameter reference actually means 'auto'. */
352 int is_lambda_arg;
4682b6fe 353 /* The current index into any template argument packs we are using
5bb83f10 354 for printing, or -1 to print the whole pack. */
4682b6fe 355 int pack_index;
f2ba0f87 356 /* Number of d_print_flush calls so far. */
357 unsigned long int flush_count;
bb6c1235 358 /* Stack of components, innermost first, used to avoid loops. */
359 const struct d_component_stack *component_stack;
a5ec7a66 360 /* Array of saved scopes for evaluating substitutions. */
361 struct d_saved_scope *saved_scopes;
b26b8335 362 /* Index of the next unused saved scope in the above array. */
363 int next_saved_scope;
a5ec7a66 364 /* Number of saved scopes in the above array. */
365 int num_saved_scopes;
b26b8335 366 /* Array of templates for saving into scopes. */
367 struct d_print_template *copy_templates;
368 /* Index of the next unused copy template in the above array. */
369 int next_copy_template;
370 /* Number of copy templates in the above array. */
371 int num_copy_templates;
f89ffc3b 372 /* The nearest enclosing template, if any. */
373 const struct demangle_component *current_template;
1b4974e7 374};
3a18c9fc 375
168d63e5 376#ifdef CP_DEMANGLE_DEBUG
d94aaf66 377static void d_dump (struct demangle_component *, int);
168d63e5 378#endif
f95cb811 379
380static struct demangle_component *
d94aaf66 381d_make_empty (struct d_info *);
f95cb811 382
383static struct demangle_component *
d94aaf66 384d_make_comp (struct d_info *, enum demangle_component_type,
385 struct demangle_component *,
386 struct demangle_component *);
f95cb811 387
388static struct demangle_component *
d94aaf66 389d_make_name (struct d_info *, const char *, int);
f95cb811 390
6400c038 391static struct demangle_component *
392d_make_demangle_mangled_name (struct d_info *, const char *);
393
f95cb811 394static struct demangle_component *
d94aaf66 395d_make_builtin_type (struct d_info *,
396 const struct demangle_builtin_type_info *);
f95cb811 397
398static struct demangle_component *
d94aaf66 399d_make_operator (struct d_info *,
400 const struct demangle_operator_info *);
f95cb811 401
402static struct demangle_component *
d94aaf66 403d_make_extended_operator (struct d_info *, int,
404 struct demangle_component *);
f95cb811 405
406static struct demangle_component *
d94aaf66 407d_make_ctor (struct d_info *, enum gnu_v3_ctor_kinds,
408 struct demangle_component *);
f95cb811 409
410static struct demangle_component *
d94aaf66 411d_make_dtor (struct d_info *, enum gnu_v3_dtor_kinds,
412 struct demangle_component *);
f95cb811 413
414static struct demangle_component *
7d235b1b 415d_make_template_param (struct d_info *, int);
f95cb811 416
417static struct demangle_component *
d94aaf66 418d_make_sub (struct d_info *, const char *, int);
f95cb811 419
420static int
d94aaf66 421has_return_type (struct demangle_component *);
f95cb811 422
423static int
d94aaf66 424is_ctor_dtor_or_conversion (struct demangle_component *);
f95cb811 425
d94aaf66 426static struct demangle_component *d_encoding (struct d_info *, int);
f95cb811 427
3dc558bb 428static struct demangle_component *d_name (struct d_info *);
f95cb811 429
d94aaf66 430static struct demangle_component *d_nested_name (struct d_info *);
f95cb811 431
d94aaf66 432static struct demangle_component *d_prefix (struct d_info *);
f95cb811 433
d94aaf66 434static struct demangle_component *d_unqualified_name (struct d_info *);
f95cb811 435
d94aaf66 436static struct demangle_component *d_source_name (struct d_info *);
f95cb811 437
7d235b1b 438static int d_number (struct d_info *);
f95cb811 439
7d235b1b 440static struct demangle_component *d_identifier (struct d_info *, int);
f95cb811 441
d94aaf66 442static struct demangle_component *d_operator_name (struct d_info *);
f95cb811 443
d94aaf66 444static struct demangle_component *d_special_name (struct d_info *);
f95cb811 445
2e9e9363 446static struct demangle_component *d_parmlist (struct d_info *);
447
d94aaf66 448static int d_call_offset (struct d_info *, int);
f95cb811 449
d94aaf66 450static struct demangle_component *d_ctor_dtor_name (struct d_info *);
f95cb811 451
452static struct demangle_component **
d94aaf66 453d_cv_qualifiers (struct d_info *, struct demangle_component **, int);
f95cb811 454
1189258f 455static struct demangle_component *
456d_ref_qualifier (struct d_info *, struct demangle_component *);
457
f95cb811 458static struct demangle_component *
d94aaf66 459d_function_type (struct d_info *);
f95cb811 460
461static struct demangle_component *
d94aaf66 462d_bare_function_type (struct d_info *, int);
f95cb811 463
464static struct demangle_component *
d94aaf66 465d_class_enum_type (struct d_info *);
f95cb811 466
d94aaf66 467static struct demangle_component *d_array_type (struct d_info *);
f95cb811 468
29e2e80a 469static struct demangle_component *d_vector_type (struct d_info *);
470
f95cb811 471static struct demangle_component *
d94aaf66 472d_pointer_to_member_type (struct d_info *);
f95cb811 473
474static struct demangle_component *
d94aaf66 475d_template_param (struct d_info *);
f95cb811 476
d94aaf66 477static struct demangle_component *d_template_args (struct d_info *);
17fdf85c 478static struct demangle_component *d_template_args_1 (struct d_info *);
f95cb811 479
480static struct demangle_component *
d94aaf66 481d_template_arg (struct d_info *);
f95cb811 482
d94aaf66 483static struct demangle_component *d_expression (struct d_info *);
f95cb811 484
d94aaf66 485static struct demangle_component *d_expr_primary (struct d_info *);
f95cb811 486
3dc558bb 487static struct demangle_component *d_local_name (struct d_info *);
f95cb811 488
d94aaf66 489static int d_discriminator (struct d_info *);
f95cb811 490
a8b75081 491static struct demangle_component *d_lambda (struct d_info *);
492
493static struct demangle_component *d_unnamed_type (struct d_info *);
494
0d80d940 495static struct demangle_component *
496d_clone_suffix (struct d_info *, struct demangle_component *);
497
f95cb811 498static int
d94aaf66 499d_add_substitution (struct d_info *, struct demangle_component *);
f95cb811 500
d94aaf66 501static struct demangle_component *d_substitution (struct d_info *, int);
f95cb811 502
f89ffc3b 503static void d_checkpoint (struct d_info *, struct d_info_checkpoint *);
504
505static void d_backtrack (struct d_info *, struct d_info_checkpoint *);
506
611fc3d0 507static void d_growable_string_init (struct d_growable_string *, size_t);
f95cb811 508
611fc3d0 509static inline void
510d_growable_string_resize (struct d_growable_string *, size_t);
f95cb811 511
611fc3d0 512static inline void
513d_growable_string_append_buffer (struct d_growable_string *,
514 const char *, size_t);
f95cb811 515static void
611fc3d0 516d_growable_string_callback_adapter (const char *, size_t, void *);
517
518static void
b26b8335 519d_print_init (struct d_print_info *, demangle_callbackref, void *,
520 const struct demangle_component *);
611fc3d0 521
522static inline void d_print_error (struct d_print_info *);
523
524static inline int d_print_saw_error (struct d_print_info *);
525
526static inline void d_print_flush (struct d_print_info *);
527
528static inline void d_append_char (struct d_print_info *, char);
f95cb811 529
611fc3d0 530static inline void d_append_buffer (struct d_print_info *,
531 const char *, size_t);
532
533static inline void d_append_string (struct d_print_info *, const char *);
534
535static inline char d_last_char (struct d_print_info *);
f95cb811 536
537static void
a664c62c 538d_print_comp (struct d_print_info *, int, struct demangle_component *);
f95cb811 539
540static void
d94aaf66 541d_print_java_identifier (struct d_print_info *, const char *, int);
f95cb811 542
543static void
ce673d9a 544d_print_mod_list (struct d_print_info *, int, struct d_print_mod *, int);
f95cb811 545
546static void
a664c62c 547d_print_mod (struct d_print_info *, int, struct demangle_component *);
f95cb811 548
549static void
ce673d9a 550d_print_function_type (struct d_print_info *, int,
a664c62c 551 struct demangle_component *,
d94aaf66 552 struct d_print_mod *);
f95cb811 553
554static void
ce673d9a 555d_print_array_type (struct d_print_info *, int,
a664c62c 556 struct demangle_component *,
d94aaf66 557 struct d_print_mod *);
f95cb811 558
559static void
a664c62c 560d_print_expr_op (struct d_print_info *, int, struct demangle_component *);
f95cb811 561
88845c03 562static void d_print_cast (struct d_print_info *, int,
a664c62c 563 struct demangle_component *);
88845c03 564static void d_print_conversion (struct d_print_info *, int,
a664c62c 565 struct demangle_component *);
f95cb811 566
611fc3d0 567static int d_demangle_callback (const char *, int,
568 demangle_callbackref, void *);
d94aaf66 569static char *d_demangle (const char *, int, size_t *);
1b4974e7 570
2e9e9363 571#define FNQUAL_COMPONENT_CASE \
572 case DEMANGLE_COMPONENT_RESTRICT_THIS: \
573 case DEMANGLE_COMPONENT_VOLATILE_THIS: \
574 case DEMANGLE_COMPONENT_CONST_THIS: \
575 case DEMANGLE_COMPONENT_REFERENCE_THIS: \
576 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: \
577 case DEMANGLE_COMPONENT_TRANSACTION_SAFE: \
578 case DEMANGLE_COMPONENT_NOEXCEPT: \
579 case DEMANGLE_COMPONENT_THROW_SPEC
580
2a80a8f0 581/* True iff TYPE is a demangling component representing a
582 function-type-qualifier. */
583
584static int
585is_fnqual_component_type (enum demangle_component_type type)
586{
587 switch (type)
588 {
589 FNQUAL_COMPONENT_CASE:
590 return 1;
591 default:
592 break;
593 }
594 return 0;
595}
596
597
168d63e5 598#ifdef CP_DEMANGLE_DEBUG
1b4974e7 599
600static void
d94aaf66 601d_dump (struct demangle_component *dc, int indent)
168d63e5 602{
603 int i;
168d63e5 604
1b4974e7 605 if (dc == NULL)
611fc3d0 606 {
607 if (indent == 0)
608 printf ("failed demangling\n");
609 return;
610 }
1b4974e7 611
612 for (i = 0; i < indent; ++i)
613 putchar (' ');
614
615 switch (dc->type)
616 {
f95cb811 617 case DEMANGLE_COMPONENT_NAME:
1b4974e7 618 printf ("name '%.*s'\n", dc->u.s_name.len, dc->u.s_name.s);
619 return;
d4701f6c 620 case DEMANGLE_COMPONENT_TAGGED_NAME:
621 printf ("tagged name\n");
622 d_dump (dc->u.s_binary.left, indent + 2);
623 d_dump (dc->u.s_binary.right, indent + 2);
624 return;
f95cb811 625 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
1b4974e7 626 printf ("template parameter %ld\n", dc->u.s_number.number);
627 return;
61b14403 628 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
629 printf ("function parameter %ld\n", dc->u.s_number.number);
630 return;
f95cb811 631 case DEMANGLE_COMPONENT_CTOR:
1b4974e7 632 printf ("constructor %d\n", (int) dc->u.s_ctor.kind);
633 d_dump (dc->u.s_ctor.name, indent + 2);
634 return;
f95cb811 635 case DEMANGLE_COMPONENT_DTOR:
1b4974e7 636 printf ("destructor %d\n", (int) dc->u.s_dtor.kind);
637 d_dump (dc->u.s_dtor.name, indent + 2);
638 return;
f95cb811 639 case DEMANGLE_COMPONENT_SUB_STD:
1b4974e7 640 printf ("standard substitution %s\n", dc->u.s_string.string);
641 return;
f95cb811 642 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
1b4974e7 643 printf ("builtin type %s\n", dc->u.s_builtin.type->name);
644 return;
f95cb811 645 case DEMANGLE_COMPONENT_OPERATOR:
1b4974e7 646 printf ("operator %s\n", dc->u.s_operator.op->name);
647 return;
f95cb811 648 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
1b4974e7 649 printf ("extended operator with %d args\n",
650 dc->u.s_extended_operator.args);
651 d_dump (dc->u.s_extended_operator.name, indent + 2);
652 return;
653
f95cb811 654 case DEMANGLE_COMPONENT_QUAL_NAME:
1b4974e7 655 printf ("qualified name\n");
656 break;
f95cb811 657 case DEMANGLE_COMPONENT_LOCAL_NAME:
77097adf 658 printf ("local name\n");
659 break;
f95cb811 660 case DEMANGLE_COMPONENT_TYPED_NAME:
1b4974e7 661 printf ("typed name\n");
662 break;
f95cb811 663 case DEMANGLE_COMPONENT_TEMPLATE:
1b4974e7 664 printf ("template\n");
665 break;
f95cb811 666 case DEMANGLE_COMPONENT_VTABLE:
1b4974e7 667 printf ("vtable\n");
668 break;
f95cb811 669 case DEMANGLE_COMPONENT_VTT:
1b4974e7 670 printf ("VTT\n");
671 break;
f95cb811 672 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
1b4974e7 673 printf ("construction vtable\n");
674 break;
f95cb811 675 case DEMANGLE_COMPONENT_TYPEINFO:
1b4974e7 676 printf ("typeinfo\n");
677 break;
f95cb811 678 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
1b4974e7 679 printf ("typeinfo name\n");
680 break;
f95cb811 681 case DEMANGLE_COMPONENT_TYPEINFO_FN:
1b4974e7 682 printf ("typeinfo function\n");
683 break;
f95cb811 684 case DEMANGLE_COMPONENT_THUNK:
1b4974e7 685 printf ("thunk\n");
686 break;
f95cb811 687 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
1b4974e7 688 printf ("virtual thunk\n");
689 break;
f95cb811 690 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
1b4974e7 691 printf ("covariant thunk\n");
692 break;
f95cb811 693 case DEMANGLE_COMPONENT_JAVA_CLASS:
1b4974e7 694 printf ("java class\n");
695 break;
f95cb811 696 case DEMANGLE_COMPONENT_GUARD:
1b4974e7 697 printf ("guard\n");
698 break;
f95cb811 699 case DEMANGLE_COMPONENT_REFTEMP:
1b4974e7 700 printf ("reference temporary\n");
701 break;
e63e3841 702 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
703 printf ("hidden alias\n");
704 break;
4c0315d0 705 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
706 printf ("transaction clone\n");
707 break;
708 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
709 printf ("non-transaction clone\n");
710 break;
f95cb811 711 case DEMANGLE_COMPONENT_RESTRICT:
1b4974e7 712 printf ("restrict\n");
713 break;
f95cb811 714 case DEMANGLE_COMPONENT_VOLATILE:
1b4974e7 715 printf ("volatile\n");
716 break;
f95cb811 717 case DEMANGLE_COMPONENT_CONST:
1b4974e7 718 printf ("const\n");
719 break;
f95cb811 720 case DEMANGLE_COMPONENT_RESTRICT_THIS:
3c87c5c3 721 printf ("restrict this\n");
722 break;
f95cb811 723 case DEMANGLE_COMPONENT_VOLATILE_THIS:
3c87c5c3 724 printf ("volatile this\n");
725 break;
f95cb811 726 case DEMANGLE_COMPONENT_CONST_THIS:
3c87c5c3 727 printf ("const this\n");
728 break;
1189258f 729 case DEMANGLE_COMPONENT_REFERENCE_THIS:
730 printf ("reference this\n");
731 break;
732 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
733 printf ("rvalue reference this\n");
734 break;
6d02e6b2 735 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
736 printf ("transaction_safe this\n");
737 break;
f95cb811 738 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
1b4974e7 739 printf ("vendor type qualifier\n");
740 break;
f95cb811 741 case DEMANGLE_COMPONENT_POINTER:
1b4974e7 742 printf ("pointer\n");
743 break;
f95cb811 744 case DEMANGLE_COMPONENT_REFERENCE:
1b4974e7 745 printf ("reference\n");
746 break;
c4692e04 747 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
748 printf ("rvalue reference\n");
749 break;
f95cb811 750 case DEMANGLE_COMPONENT_COMPLEX:
1b4974e7 751 printf ("complex\n");
752 break;
f95cb811 753 case DEMANGLE_COMPONENT_IMAGINARY:
1b4974e7 754 printf ("imaginary\n");
755 break;
f95cb811 756 case DEMANGLE_COMPONENT_VENDOR_TYPE:
1b4974e7 757 printf ("vendor type\n");
758 break;
f95cb811 759 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
1b4974e7 760 printf ("function type\n");
761 break;
f95cb811 762 case DEMANGLE_COMPONENT_ARRAY_TYPE:
1b4974e7 763 printf ("array type\n");
764 break;
f95cb811 765 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
1b4974e7 766 printf ("pointer to member type\n");
767 break;
e4583147 768 case DEMANGLE_COMPONENT_FIXED_TYPE:
d240d5fd 769 printf ("fixed-point type, accum? %d, sat? %d\n",
770 dc->u.s_fixed.accum, dc->u.s_fixed.sat);
9f82fcbc 771 d_dump (dc->u.s_fixed.length, indent + 2);
e4583147 772 break;
f95cb811 773 case DEMANGLE_COMPONENT_ARGLIST:
1b4974e7 774 printf ("argument list\n");
775 break;
f95cb811 776 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
1b4974e7 777 printf ("template argument list\n");
778 break;
2d847c18 779 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
780 printf ("initializer list\n");
781 break;
f95cb811 782 case DEMANGLE_COMPONENT_CAST:
1b4974e7 783 printf ("cast\n");
784 break;
88845c03 785 case DEMANGLE_COMPONENT_CONVERSION:
786 printf ("conversion operator\n");
787 break;
2d847c18 788 case DEMANGLE_COMPONENT_NULLARY:
789 printf ("nullary operator\n");
790 break;
f95cb811 791 case DEMANGLE_COMPONENT_UNARY:
1b4974e7 792 printf ("unary operator\n");
793 break;
f95cb811 794 case DEMANGLE_COMPONENT_BINARY:
1b4974e7 795 printf ("binary operator\n");
796 break;
f95cb811 797 case DEMANGLE_COMPONENT_BINARY_ARGS:
1b4974e7 798 printf ("binary operator arguments\n");
799 break;
f95cb811 800 case DEMANGLE_COMPONENT_TRINARY:
1b4974e7 801 printf ("trinary operator\n");
802 break;
f95cb811 803 case DEMANGLE_COMPONENT_TRINARY_ARG1:
1b4974e7 804 printf ("trinary operator arguments 1\n");
805 break;
f95cb811 806 case DEMANGLE_COMPONENT_TRINARY_ARG2:
1b4974e7 807 printf ("trinary operator arguments 1\n");
808 break;
f95cb811 809 case DEMANGLE_COMPONENT_LITERAL:
1b4974e7 810 printf ("literal\n");
811 break;
f95cb811 812 case DEMANGLE_COMPONENT_LITERAL_NEG:
b69d25f7 813 printf ("negative literal\n");
814 break;
c8d35c3c 815 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
816 printf ("java resource\n");
817 break;
818 case DEMANGLE_COMPONENT_COMPOUND_NAME:
819 printf ("compound name\n");
820 break;
821 case DEMANGLE_COMPONENT_CHARACTER:
822 printf ("character '%c'\n", dc->u.s_character.character);
823 return;
61b14403 824 case DEMANGLE_COMPONENT_NUMBER:
825 printf ("number %ld\n", dc->u.s_number.number);
826 return;
a2ad5e1b 827 case DEMANGLE_COMPONENT_DECLTYPE:
828 printf ("decltype\n");
829 break;
4682b6fe 830 case DEMANGLE_COMPONENT_PACK_EXPANSION:
831 printf ("pack expansion\n");
832 break;
462819c8 833 case DEMANGLE_COMPONENT_TLS_INIT:
834 printf ("tls init function\n");
835 break;
836 case DEMANGLE_COMPONENT_TLS_WRAPPER:
837 printf ("tls wrapper function\n");
838 break;
dc78d83a 839 case DEMANGLE_COMPONENT_DEFAULT_ARG:
840 printf ("default argument %d\n", dc->u.s_unary_num.num);
841 d_dump (dc->u.s_unary_num.sub, indent+2);
842 return;
843 case DEMANGLE_COMPONENT_LAMBDA:
844 printf ("lambda %d\n", dc->u.s_unary_num.num);
845 d_dump (dc->u.s_unary_num.sub, indent+2);
846 return;
168d63e5 847 }
848
1b4974e7 849 d_dump (d_left (dc), indent + 2);
850 d_dump (d_right (dc), indent + 2);
851}
852
853#endif /* CP_DEMANGLE_DEBUG */
854
f95cb811 855/* Fill in a DEMANGLE_COMPONENT_NAME. */
856
857CP_STATIC_IF_GLIBCPP_V3
858int
d94aaf66 859cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
f95cb811 860{
861 if (p == NULL || s == NULL || len == 0)
862 return 0;
cb987b84 863 p->d_printing = 0;
f95cb811 864 p->type = DEMANGLE_COMPONENT_NAME;
865 p->u.s_name.s = s;
866 p->u.s_name.len = len;
867 return 1;
868}
869
870/* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
871
872CP_STATIC_IF_GLIBCPP_V3
873int
d94aaf66 874cplus_demangle_fill_extended_operator (struct demangle_component *p, int args,
875 struct demangle_component *name)
f95cb811 876{
877 if (p == NULL || args < 0 || name == NULL)
878 return 0;
cb987b84 879 p->d_printing = 0;
f95cb811 880 p->type = DEMANGLE_COMPONENT_EXTENDED_OPERATOR;
881 p->u.s_extended_operator.args = args;
882 p->u.s_extended_operator.name = name;
883 return 1;
884}
885
886/* Fill in a DEMANGLE_COMPONENT_CTOR. */
887
888CP_STATIC_IF_GLIBCPP_V3
889int
d94aaf66 890cplus_demangle_fill_ctor (struct demangle_component *p,
891 enum gnu_v3_ctor_kinds kind,
892 struct demangle_component *name)
f95cb811 893{
894 if (p == NULL
895 || name == NULL
1d6e7ce6 896 || (int) kind < gnu_v3_complete_object_ctor
4c0315d0 897 || (int) kind > gnu_v3_object_ctor_group)
f95cb811 898 return 0;
cb987b84 899 p->d_printing = 0;
f95cb811 900 p->type = DEMANGLE_COMPONENT_CTOR;
901 p->u.s_ctor.kind = kind;
902 p->u.s_ctor.name = name;
903 return 1;
904}
905
906/* Fill in a DEMANGLE_COMPONENT_DTOR. */
907
908CP_STATIC_IF_GLIBCPP_V3
909int
d94aaf66 910cplus_demangle_fill_dtor (struct demangle_component *p,
911 enum gnu_v3_dtor_kinds kind,
912 struct demangle_component *name)
f95cb811 913{
914 if (p == NULL
915 || name == NULL
1d6e7ce6 916 || (int) kind < gnu_v3_deleting_dtor
4c0315d0 917 || (int) kind > gnu_v3_object_dtor_group)
f95cb811 918 return 0;
cb987b84 919 p->d_printing = 0;
f95cb811 920 p->type = DEMANGLE_COMPONENT_DTOR;
921 p->u.s_dtor.kind = kind;
922 p->u.s_dtor.name = name;
923 return 1;
924}
925
1b4974e7 926/* Add a new component. */
927
f95cb811 928static struct demangle_component *
d94aaf66 929d_make_empty (struct d_info *di)
1b4974e7 930{
f95cb811 931 struct demangle_component *p;
1b4974e7 932
933 if (di->next_comp >= di->num_comps)
934 return NULL;
935 p = &di->comps[di->next_comp];
a664c62c 936 p->d_printing = 0;
1b4974e7 937 ++di->next_comp;
938 return p;
939}
940
941/* Add a new generic component. */
942
f95cb811 943static struct demangle_component *
d94aaf66 944d_make_comp (struct d_info *di, enum demangle_component_type type,
945 struct demangle_component *left,
946 struct demangle_component *right)
1b4974e7 947{
f95cb811 948 struct demangle_component *p;
1b4974e7 949
950 /* We check for errors here. A typical error would be a NULL return
c1ea6f0c 951 from a subroutine. We catch those here, and return NULL
952 upward. */
1b4974e7 953 switch (type)
954 {
955 /* These types require two parameters. */
f95cb811 956 case DEMANGLE_COMPONENT_QUAL_NAME:
957 case DEMANGLE_COMPONENT_LOCAL_NAME:
958 case DEMANGLE_COMPONENT_TYPED_NAME:
d4701f6c 959 case DEMANGLE_COMPONENT_TAGGED_NAME:
f95cb811 960 case DEMANGLE_COMPONENT_TEMPLATE:
a79e1701 961 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
f95cb811 962 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
963 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
964 case DEMANGLE_COMPONENT_UNARY:
965 case DEMANGLE_COMPONENT_BINARY:
966 case DEMANGLE_COMPONENT_BINARY_ARGS:
967 case DEMANGLE_COMPONENT_TRINARY:
968 case DEMANGLE_COMPONENT_TRINARY_ARG1:
f95cb811 969 case DEMANGLE_COMPONENT_LITERAL:
970 case DEMANGLE_COMPONENT_LITERAL_NEG:
c8d35c3c 971 case DEMANGLE_COMPONENT_COMPOUND_NAME:
29e2e80a 972 case DEMANGLE_COMPONENT_VECTOR_TYPE:
0d80d940 973 case DEMANGLE_COMPONENT_CLONE:
1b4974e7 974 if (left == NULL || right == NULL)
975 return NULL;
976 break;
977
978 /* These types only require one parameter. */
f95cb811 979 case DEMANGLE_COMPONENT_VTABLE:
980 case DEMANGLE_COMPONENT_VTT:
f95cb811 981 case DEMANGLE_COMPONENT_TYPEINFO:
982 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
983 case DEMANGLE_COMPONENT_TYPEINFO_FN:
984 case DEMANGLE_COMPONENT_THUNK:
985 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
986 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
987 case DEMANGLE_COMPONENT_JAVA_CLASS:
988 case DEMANGLE_COMPONENT_GUARD:
462819c8 989 case DEMANGLE_COMPONENT_TLS_INIT:
990 case DEMANGLE_COMPONENT_TLS_WRAPPER:
f95cb811 991 case DEMANGLE_COMPONENT_REFTEMP:
e63e3841 992 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
4c0315d0 993 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
994 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
f95cb811 995 case DEMANGLE_COMPONENT_POINTER:
996 case DEMANGLE_COMPONENT_REFERENCE:
c4692e04 997 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
f95cb811 998 case DEMANGLE_COMPONENT_COMPLEX:
999 case DEMANGLE_COMPONENT_IMAGINARY:
1000 case DEMANGLE_COMPONENT_VENDOR_TYPE:
f95cb811 1001 case DEMANGLE_COMPONENT_CAST:
88845c03 1002 case DEMANGLE_COMPONENT_CONVERSION:
c8d35c3c 1003 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
a2ad5e1b 1004 case DEMANGLE_COMPONENT_DECLTYPE:
4682b6fe 1005 case DEMANGLE_COMPONENT_PACK_EXPANSION:
7ddff01e 1006 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
1007 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
2d847c18 1008 case DEMANGLE_COMPONENT_NULLARY:
1009 case DEMANGLE_COMPONENT_TRINARY_ARG2:
1b4974e7 1010 if (left == NULL)
1011 return NULL;
1012 break;
1013
1014 /* This needs a right parameter, but the left parameter can be
1015 empty. */
f95cb811 1016 case DEMANGLE_COMPONENT_ARRAY_TYPE:
2d847c18 1017 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
1b4974e7 1018 if (right == NULL)
1019 return NULL;
1020 break;
1021
1022 /* These are allowed to have no parameters--in some cases they
1023 will be filled in later. */
f95cb811 1024 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
1025 case DEMANGLE_COMPONENT_RESTRICT:
1026 case DEMANGLE_COMPONENT_VOLATILE:
1027 case DEMANGLE_COMPONENT_CONST:
4682b6fe 1028 case DEMANGLE_COMPONENT_ARGLIST:
1029 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
2e9e9363 1030 FNQUAL_COMPONENT_CASE:
1b4974e7 1031 break;
1032
1033 /* Other types should not be seen here. */
1034 default:
1035 return NULL;
168d63e5 1036 }
1b4974e7 1037
f95cb811 1038 p = d_make_empty (di);
1b4974e7 1039 if (p != NULL)
168d63e5 1040 {
f95cb811 1041 p->type = type;
1b4974e7 1042 p->u.s_binary.left = left;
1043 p->u.s_binary.right = right;
168d63e5 1044 }
1b4974e7 1045 return p;
1046}
168d63e5 1047
6400c038 1048/* Add a new demangle mangled name component. */
1049
1050static struct demangle_component *
1051d_make_demangle_mangled_name (struct d_info *di, const char *s)
1052{
1053 if (d_peek_char (di) != '_' || d_peek_next_char (di) != 'Z')
1054 return d_make_name (di, s, strlen (s));
1055 d_advance (di, 2);
1056 return d_encoding (di, 0);
1057}
1058
1b4974e7 1059/* Add a new name component. */
140d75d7 1060
f95cb811 1061static struct demangle_component *
d94aaf66 1062d_make_name (struct d_info *di, const char *s, int len)
1b4974e7 1063{
f95cb811 1064 struct demangle_component *p;
140d75d7 1065
f95cb811 1066 p = d_make_empty (di);
1067 if (! cplus_demangle_fill_name (p, s, len))
3c87c5c3 1068 return NULL;
1b4974e7 1069 return p;
168d63e5 1070}
1071
1b4974e7 1072/* Add a new builtin type component. */
168d63e5 1073
f95cb811 1074static struct demangle_component *
d94aaf66 1075d_make_builtin_type (struct d_info *di,
1076 const struct demangle_builtin_type_info *type)
168d63e5 1077{
f95cb811 1078 struct demangle_component *p;
1b4974e7 1079
c1ea6f0c 1080 if (type == NULL)
1081 return NULL;
f95cb811 1082 p = d_make_empty (di);
1b4974e7 1083 if (p != NULL)
f95cb811 1084 {
1085 p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
1086 p->u.s_builtin.type = type;
1087 }
1b4974e7 1088 return p;
1089}
168d63e5 1090
1b4974e7 1091/* Add a new operator component. */
168d63e5 1092
f95cb811 1093static struct demangle_component *
d94aaf66 1094d_make_operator (struct d_info *di, const struct demangle_operator_info *op)
168d63e5 1095{
f95cb811 1096 struct demangle_component *p;
1b4974e7 1097
f95cb811 1098 p = d_make_empty (di);
1b4974e7 1099 if (p != NULL)
f95cb811 1100 {
1101 p->type = DEMANGLE_COMPONENT_OPERATOR;
1102 p->u.s_operator.op = op;
1103 }
1b4974e7 1104 return p;
168d63e5 1105}
1106
1b4974e7 1107/* Add a new extended operator component. */
168d63e5 1108
f95cb811 1109static struct demangle_component *
d94aaf66 1110d_make_extended_operator (struct d_info *di, int args,
1111 struct demangle_component *name)
168d63e5 1112{
f95cb811 1113 struct demangle_component *p;
140d75d7 1114
f95cb811 1115 p = d_make_empty (di);
1116 if (! cplus_demangle_fill_extended_operator (p, args, name))
c1ea6f0c 1117 return NULL;
1b4974e7 1118 return p;
168d63e5 1119}
1120
a8b75081 1121static struct demangle_component *
1122d_make_default_arg (struct d_info *di, int num,
1123 struct demangle_component *sub)
1124{
1125 struct demangle_component *p = d_make_empty (di);
1126 if (p)
1127 {
1128 p->type = DEMANGLE_COMPONENT_DEFAULT_ARG;
1129 p->u.s_unary_num.num = num;
1130 p->u.s_unary_num.sub = sub;
1131 }
1132 return p;
1133}
1134
1b4974e7 1135/* Add a new constructor component. */
168d63e5 1136
f95cb811 1137static struct demangle_component *
d94aaf66 1138d_make_ctor (struct d_info *di, enum gnu_v3_ctor_kinds kind,
1139 struct demangle_component *name)
168d63e5 1140{
f95cb811 1141 struct demangle_component *p;
1b4974e7 1142
f95cb811 1143 p = d_make_empty (di);
1144 if (! cplus_demangle_fill_ctor (p, kind, name))
c1ea6f0c 1145 return NULL;
1b4974e7 1146 return p;
168d63e5 1147}
1148
1b4974e7 1149/* Add a new destructor component. */
168d63e5 1150
f95cb811 1151static struct demangle_component *
d94aaf66 1152d_make_dtor (struct d_info *di, enum gnu_v3_dtor_kinds kind,
1153 struct demangle_component *name)
168d63e5 1154{
f95cb811 1155 struct demangle_component *p;
1b4974e7 1156
f95cb811 1157 p = d_make_empty (di);
1158 if (! cplus_demangle_fill_dtor (p, kind, name))
c1ea6f0c 1159 return NULL;
1b4974e7 1160 return p;
168d63e5 1161}
1162
1b4974e7 1163/* Add a new template parameter. */
f99edf23 1164
f95cb811 1165static struct demangle_component *
7d235b1b 1166d_make_template_param (struct d_info *di, int i)
f99edf23 1167{
f95cb811 1168 struct demangle_component *p;
1b4974e7 1169
f95cb811 1170 p = d_make_empty (di);
1b4974e7 1171 if (p != NULL)
f95cb811 1172 {
1173 p->type = DEMANGLE_COMPONENT_TEMPLATE_PARAM;
1174 p->u.s_number.number = i;
1175 }
1b4974e7 1176 return p;
f99edf23 1177}
1178
e92154af 1179/* Add a new function parameter. */
1180
1181static struct demangle_component *
7d235b1b 1182d_make_function_param (struct d_info *di, int i)
e92154af 1183{
1184 struct demangle_component *p;
1185
1186 p = d_make_empty (di);
1187 if (p != NULL)
1188 {
1189 p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM;
1190 p->u.s_number.number = i;
1191 }
1192 return p;
1193}
1194
1b4974e7 1195/* Add a new standard substitution component. */
f99edf23 1196
f95cb811 1197static struct demangle_component *
d94aaf66 1198d_make_sub (struct d_info *di, const char *name, int len)
f99edf23 1199{
f95cb811 1200 struct demangle_component *p;
1b4974e7 1201
f95cb811 1202 p = d_make_empty (di);
1b4974e7 1203 if (p != NULL)
2c0843db 1204 {
f95cb811 1205 p->type = DEMANGLE_COMPONENT_SUB_STD;
2c0843db 1206 p->u.s_string.string = name;
1207 p->u.s_string.len = len;
1208 }
1b4974e7 1209 return p;
f99edf23 1210}
1211
0d80d940 1212/* <mangled-name> ::= _Z <encoding> [<clone-suffix>]*
c1ea6f0c 1213
1214 TOP_LEVEL is non-zero when called at the top level. */
f99edf23 1215
f95cb811 1216CP_STATIC_IF_GLIBCPP_V3
1217struct demangle_component *
d94aaf66 1218cplus_demangle_mangled_name (struct d_info *di, int top_level)
f99edf23 1219{
0d80d940 1220 struct demangle_component *p;
1221
e92154af 1222 if (! d_check_char (di, '_')
1223 /* Allow missing _ if not at toplevel to work around a
1224 bug in G++ abi-version=2 mangling; see the comment in
1225 write_template_arg. */
1226 && top_level)
1b4974e7 1227 return NULL;
b785de4a 1228 if (! d_check_char (di, 'Z'))
1b4974e7 1229 return NULL;
0d80d940 1230 p = d_encoding (di, top_level);
1231
1232 /* If at top level and parsing parameters, check for a clone
1233 suffix. */
1234 if (top_level && (di->options & DMGL_PARAMS) != 0)
1235 while (d_peek_char (di) == '.'
1236 && (IS_LOWER (d_peek_next_char (di))
1237 || d_peek_next_char (di) == '_'
1238 || IS_DIGIT (d_peek_next_char (di))))
1239 p = d_clone_suffix (di, p);
1240
1241 return p;
f99edf23 1242}
1243
1b4974e7 1244/* Return whether a function should have a return type. The argument
1245 is the function name, which may be qualified in various ways. The
1246 rules are that template functions have return types with some
1247 exceptions, function types which are not part of a function name
1248 mangling have return types with some exceptions, and non-template
1249 function names do not have return types. The exceptions are that
1250 constructors, destructors, and conversion operators do not have
1251 return types. */
f99edf23 1252
1253static int
d94aaf66 1254has_return_type (struct demangle_component *dc)
f99edf23 1255{
1b4974e7 1256 if (dc == NULL)
1257 return 0;
1258 switch (dc->type)
1259 {
1260 default:
1261 return 0;
3dc558bb 1262 case DEMANGLE_COMPONENT_LOCAL_NAME:
1263 return has_return_type (d_right (dc));
f95cb811 1264 case DEMANGLE_COMPONENT_TEMPLATE:
1b4974e7 1265 return ! is_ctor_dtor_or_conversion (d_left (dc));
2e9e9363 1266 FNQUAL_COMPONENT_CASE:
7522af2a 1267 return has_return_type (d_left (dc));
1b4974e7 1268 }
f99edf23 1269}
1270
1b4974e7 1271/* Return whether a name is a constructor, a destructor, or a
1272 conversion operator. */
168d63e5 1273
1274static int
d94aaf66 1275is_ctor_dtor_or_conversion (struct demangle_component *dc)
168d63e5 1276{
1b4974e7 1277 if (dc == NULL)
1278 return 0;
1279 switch (dc->type)
1280 {
1281 default:
1282 return 0;
f95cb811 1283 case DEMANGLE_COMPONENT_QUAL_NAME:
1284 case DEMANGLE_COMPONENT_LOCAL_NAME:
1b4974e7 1285 return is_ctor_dtor_or_conversion (d_right (dc));
f95cb811 1286 case DEMANGLE_COMPONENT_CTOR:
1287 case DEMANGLE_COMPONENT_DTOR:
88845c03 1288 case DEMANGLE_COMPONENT_CONVERSION:
1b4974e7 1289 return 1;
1290 }
168d63e5 1291}
1292
1b4974e7 1293/* <encoding> ::= <(function) name> <bare-function-type>
1294 ::= <(data) name>
55faa696 1295 ::= <special-name>
1296
1297 TOP_LEVEL is non-zero when called at the top level, in which case
1298 if DMGL_PARAMS is not set we do not demangle the function
1299 parameters. We only set this at the top level, because otherwise
1300 we would not correctly demangle names in local scopes. */
168d63e5 1301
f95cb811 1302static struct demangle_component *
d94aaf66 1303d_encoding (struct d_info *di, int top_level)
168d63e5 1304{
1b4974e7 1305 char peek = d_peek_char (di);
3dc558bb 1306 struct demangle_component *dc;
140d75d7 1307
1b4974e7 1308 if (peek == 'G' || peek == 'T')
3dc558bb 1309 dc = d_special_name (di);
1b4974e7 1310 else
140d75d7 1311 {
3dc558bb 1312 dc = d_name (di);
c1ea6f0c 1313
3dc558bb 1314 if (!dc)
1315 /* Failed already. */;
1316 else if (top_level && (di->options & DMGL_PARAMS) == 0)
c1ea6f0c 1317 {
1318 /* Strip off any initial CV-qualifiers, as they really apply
1319 to the `this' parameter, and they were not output by the
1320 v2 demangler without DMGL_PARAMS. */
3dc558bb 1321 while (is_fnqual_component_type (dc->type))
c1ea6f0c 1322 dc = d_left (dc);
f2c17d01 1323
f95cb811 1324 /* If the top level is a DEMANGLE_COMPONENT_LOCAL_NAME, then
2e9e9363 1325 there may be function-qualifiers on its right argument which
f95cb811 1326 really apply here; this happens when parsing a class
1327 which is local to a function. */
1328 if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
3dc558bb 1329 while (is_fnqual_component_type (d_right (dc)->type))
1330 d_right (dc) = d_left (d_right (dc));
1331 }
1332 else
1333 {
1334 peek = d_peek_char (di);
1335 if (peek != '\0' && peek != 'E')
f2c17d01 1336 {
3dc558bb 1337 struct demangle_component *ftype;
f2c17d01 1338
3dc558bb 1339 ftype = d_bare_function_type (di, has_return_type (dc));
1340 if (ftype)
5f480962 1341 {
1342 /* If this is a non-top-level local-name, clear the
1343 return type, so it doesn't confuse the user by
1344 being confused with the return type of whaever
1345 this is nested within. */
1346 if (!top_level && dc->type == DEMANGLE_COMPONENT_LOCAL_NAME
1347 && ftype->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
1348 d_left (ftype) = NULL;
1349
1350 dc = d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME,
1351 dc, ftype);
1352 }
3dc558bb 1353 else
1354 dc = NULL;
1355 }
c1ea6f0c 1356 }
140d75d7 1357 }
3dc558bb 1358
1359 return dc;
1b4974e7 1360}
1361
d4701f6c 1362/* <tagged-name> ::= <name> B <source-name> */
1363
1364static struct demangle_component *
1365d_abi_tags (struct d_info *di, struct demangle_component *dc)
1366{
4ff52b56 1367 struct demangle_component *hold_last_name;
d4701f6c 1368 char peek;
4ff52b56 1369
1370 /* Preserve the last name, so the ABI tag doesn't clobber it. */
1371 hold_last_name = di->last_name;
1372
d4701f6c 1373 while (peek = d_peek_char (di),
1374 peek == 'B')
1375 {
1376 struct demangle_component *tag;
1377 d_advance (di, 1);
1378 tag = d_source_name (di);
1379 dc = d_make_comp (di, DEMANGLE_COMPONENT_TAGGED_NAME, dc, tag);
1380 }
4ff52b56 1381
1382 di->last_name = hold_last_name;
1383
d4701f6c 1384 return dc;
1385}
1386
1b4974e7 1387/* <name> ::= <nested-name>
1388 ::= <unscoped-name>
1389 ::= <unscoped-template-name> <template-args>
1390 ::= <local-name>
1391
1392 <unscoped-name> ::= <unqualified-name>
1393 ::= St <unqualified-name>
168d63e5 1394
1b4974e7 1395 <unscoped-template-name> ::= <unscoped-name>
1396 ::= <substitution>
1397*/
1398
f95cb811 1399static struct demangle_component *
3dc558bb 1400d_name (struct d_info *di)
1b4974e7 1401{
1402 char peek = d_peek_char (di);
f95cb811 1403 struct demangle_component *dc;
1b4974e7 1404
1405 switch (peek)
168d63e5 1406 {
1b4974e7 1407 case 'N':
185be9f5 1408 return d_nested_name (di);
1b4974e7 1409
1410 case 'Z':
3dc558bb 1411 return d_local_name (di);
1b4974e7 1412
a8b75081 1413 case 'U':
185be9f5 1414 return d_unqualified_name (di);
a8b75081 1415
1b4974e7 1416 case 'S':
1417 {
1418 int subst;
1419
1420 if (d_peek_next_char (di) != 't')
1421 {
b69d25f7 1422 dc = d_substitution (di, 0);
1b4974e7 1423 subst = 1;
1424 }
1425 else
1426 {
1427 d_advance (di, 2);
f95cb811 1428 dc = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME,
1429 d_make_name (di, "std", 3),
1b4974e7 1430 d_unqualified_name (di));
2c0843db 1431 di->expansion += 3;
1b4974e7 1432 subst = 0;
1433 }
1434
1435 if (d_peek_char (di) != 'I')
1436 {
1437 /* The grammar does not permit this case to occur if we
1438 called d_substitution() above (i.e., subst == 1). We
1439 don't bother to check. */
1440 }
1441 else
1442 {
1443 /* This is <template-args>, which means that we just saw
1444 <unscoped-template-name>, which is a substitution
1445 candidate if we didn't just get it from a
1446 substitution. */
1447 if (! subst)
1448 {
1449 if (! d_add_substitution (di, dc))
1450 return NULL;
1451 }
f95cb811 1452 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1453 d_template_args (di));
1b4974e7 1454 }
1455
185be9f5 1456 return dc;
1b4974e7 1457 }
1458
9a00b355 1459 case 'L':
1b4974e7 1460 default:
1461 dc = d_unqualified_name (di);
1462 if (d_peek_char (di) == 'I')
140d75d7 1463 {
1b4974e7 1464 /* This is <template-args>, which means that we just saw
1465 <unscoped-template-name>, which is a substitution
1466 candidate. */
1467 if (! d_add_substitution (di, dc))
1468 return NULL;
f95cb811 1469 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1470 d_template_args (di));
140d75d7 1471 }
185be9f5 1472 return dc;
168d63e5 1473 }
1b4974e7 1474}
168d63e5 1475
1189258f 1476/* <nested-name> ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E
1477 ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix> <template-args> E
1b4974e7 1478*/
168d63e5 1479
f95cb811 1480static struct demangle_component *
d94aaf66 1481d_nested_name (struct d_info *di)
1b4974e7 1482{
f95cb811 1483 struct demangle_component *ret;
1484 struct demangle_component **pret;
1189258f 1485 struct demangle_component *rqual;
140d75d7 1486
b785de4a 1487 if (! d_check_char (di, 'N'))
1b4974e7 1488 return NULL;
168d63e5 1489
3c87c5c3 1490 pret = d_cv_qualifiers (di, &ret, 1);
1b4974e7 1491 if (pret == NULL)
1492 return NULL;
1493
1189258f 1494 /* Parse the ref-qualifier now and then attach it
1495 once we have something to attach it to. */
1496 rqual = d_ref_qualifier (di, NULL);
1497
1b4974e7 1498 *pret = d_prefix (di);
1499 if (*pret == NULL)
1500 return NULL;
168d63e5 1501
1189258f 1502 if (rqual)
1503 {
1504 d_left (rqual) = ret;
1505 ret = rqual;
1506 }
1507
b785de4a 1508 if (! d_check_char (di, 'E'))
168d63e5 1509 return NULL;
1510
1b4974e7 1511 return ret;
168d63e5 1512}
1513
1b4974e7 1514/* <prefix> ::= <prefix> <unqualified-name>
1515 ::= <template-prefix> <template-args>
1516 ::= <template-param>
c5a7bf9e 1517 ::= <decltype>
1b4974e7 1518 ::=
1519 ::= <substitution>
168d63e5 1520
1b4974e7 1521 <template-prefix> ::= <prefix> <(template) unqualified-name>
1522 ::= <template-param>
1523 ::= <substitution>
1524*/
1525
f95cb811 1526static struct demangle_component *
d94aaf66 1527d_prefix (struct d_info *di)
168d63e5 1528{
f95cb811 1529 struct demangle_component *ret = NULL;
168d63e5 1530
1b4974e7 1531 while (1)
168d63e5 1532 {
1b4974e7 1533 char peek;
f95cb811 1534 enum demangle_component_type comb_type;
1535 struct demangle_component *dc;
1b4974e7 1536
1537 peek = d_peek_char (di);
1538 if (peek == '\0')
1539 return NULL;
1540
1541 /* The older code accepts a <local-name> here, but I don't see
1542 that in the grammar. The older code does not accept a
1543 <template-param> here. */
168d63e5 1544
f95cb811 1545 comb_type = DEMANGLE_COMPONENT_QUAL_NAME;
c5a7bf9e 1546 if (peek == 'D')
1547 {
1548 char peek2 = d_peek_next_char (di);
1549 if (peek2 == 'T' || peek2 == 't')
1550 /* Decltype. */
1551 dc = cplus_demangle_type (di);
1552 else
1553 /* Destructor name. */
1554 dc = d_unqualified_name (di);
1555 }
1556 else if (IS_DIGIT (peek)
3c87c5c3 1557 || IS_LOWER (peek)
1b4974e7 1558 || peek == 'C'
a8b75081 1559 || peek == 'U'
9751796f 1560 || peek == 'L')
1b4974e7 1561 dc = d_unqualified_name (di);
1562 else if (peek == 'S')
b69d25f7 1563 dc = d_substitution (di, 1);
1b4974e7 1564 else if (peek == 'I')
1565 {
1566 if (ret == NULL)
1567 return NULL;
f95cb811 1568 comb_type = DEMANGLE_COMPONENT_TEMPLATE;
1b4974e7 1569 dc = d_template_args (di);
1570 }
1571 else if (peek == 'T')
1572 dc = d_template_param (di);
1573 else if (peek == 'E')
1574 return ret;
a8b75081 1575 else if (peek == 'M')
1576 {
1577 /* Initializer scope for a lambda. We don't need to represent
1578 this; the normal code will just treat the variable as a type
1579 scope, which gives appropriate output. */
1580 if (ret == NULL)
1581 return NULL;
1582 d_advance (di, 1);
1583 continue;
1584 }
1b4974e7 1585 else
1586 return NULL;
1587
1588 if (ret == NULL)
1589 ret = dc;
168d63e5 1590 else
1b4974e7 1591 ret = d_make_comp (di, comb_type, ret, dc);
1592
1593 if (peek != 'S' && d_peek_char (di) != 'E')
1594 {
1595 if (! d_add_substitution (di, ret))
1596 return NULL;
1597 }
168d63e5 1598 }
1599}
1600
1b4974e7 1601/* <unqualified-name> ::= <operator-name>
1602 ::= <ctor-dtor-name>
1603 ::= <source-name>
9751796f 1604 ::= <local-source-name>
1605
1606 <local-source-name> ::= L <source-name> <discriminator>
1b4974e7 1607*/
168d63e5 1608
f95cb811 1609static struct demangle_component *
d94aaf66 1610d_unqualified_name (struct d_info *di)
168d63e5 1611{
185be9f5 1612 struct demangle_component *ret;
1b4974e7 1613 char peek;
1614
1615 peek = d_peek_char (di);
1616 if (IS_DIGIT (peek))
185be9f5 1617 ret = d_source_name (di);
3c87c5c3 1618 else if (IS_LOWER (peek))
2c0843db 1619 {
322066d8 1620 if (peek == 'o' && d_peek_next_char (di) == 'n')
1621 d_advance (di, 2);
2c0843db 1622 ret = d_operator_name (di);
f95cb811 1623 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR)
307586fb 1624 {
1625 di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2;
1626 if (!strcmp (ret->u.s_operator.op->code, "li"))
1627 ret = d_make_comp (di, DEMANGLE_COMPONENT_UNARY, ret,
1628 d_source_name (di));
1629 }
2c0843db 1630 }
1b4974e7 1631 else if (peek == 'C' || peek == 'D')
185be9f5 1632 ret = d_ctor_dtor_name (di);
9751796f 1633 else if (peek == 'L')
1634 {
9751796f 1635 d_advance (di, 1);
1636
1637 ret = d_source_name (di);
1638 if (ret == NULL)
1639 return NULL;
1640 if (! d_discriminator (di))
1641 return NULL;
9751796f 1642 }
a8b75081 1643 else if (peek == 'U')
1644 {
1645 switch (d_peek_next_char (di))
1646 {
1647 case 'l':
185be9f5 1648 ret = d_lambda (di);
1649 break;
a8b75081 1650 case 't':
185be9f5 1651 ret = d_unnamed_type (di);
1652 break;
a8b75081 1653 default:
1654 return NULL;
1655 }
1656 }
1b4974e7 1657 else
140d75d7 1658 return NULL;
185be9f5 1659
1660 if (d_peek_char (di) == 'B')
1661 ret = d_abi_tags (di, ret);
1662 return ret;
168d63e5 1663}
1664
1b4974e7 1665/* <source-name> ::= <(positive length) number> <identifier> */
168d63e5 1666
f95cb811 1667static struct demangle_component *
d94aaf66 1668d_source_name (struct d_info *di)
168d63e5 1669{
7d235b1b 1670 int len;
f95cb811 1671 struct demangle_component *ret;
1b4974e7 1672
1673 len = d_number (di);
1674 if (len <= 0)
1675 return NULL;
1676 ret = d_identifier (di, len);
1677 di->last_name = ret;
1678 return ret;
168d63e5 1679}
1680
1b4974e7 1681/* number ::= [n] <(non-negative decimal integer)> */
168d63e5 1682
7d235b1b 1683static int
d94aaf66 1684d_number (struct d_info *di)
168d63e5 1685{
2c0843db 1686 int negative;
1b4974e7 1687 char peek;
7d235b1b 1688 int ret;
168d63e5 1689
2c0843db 1690 negative = 0;
1b4974e7 1691 peek = d_peek_char (di);
1692 if (peek == 'n')
1693 {
2c0843db 1694 negative = 1;
1b4974e7 1695 d_advance (di, 1);
1696 peek = d_peek_char (di);
1697 }
168d63e5 1698
1b4974e7 1699 ret = 0;
1700 while (1)
168d63e5 1701 {
1b4974e7 1702 if (! IS_DIGIT (peek))
2c0843db 1703 {
1704 if (negative)
1705 ret = - ret;
1706 return ret;
1707 }
e309c6a6 1708 if (ret > ((INT_MAX - (peek - '0')) / 10))
1709 return -1;
1b4974e7 1710 ret = ret * 10 + peek - '0';
1711 d_advance (di, 1);
1712 peek = d_peek_char (di);
168d63e5 1713 }
168d63e5 1714}
1715
29e2e80a 1716/* Like d_number, but returns a demangle_component. */
1717
1718static struct demangle_component *
1719d_number_component (struct d_info *di)
1720{
1721 struct demangle_component *ret = d_make_empty (di);
1722 if (ret)
1723 {
1724 ret->type = DEMANGLE_COMPONENT_NUMBER;
1725 ret->u.s_number.number = d_number (di);
1726 }
1727 return ret;
1728}
1729
1b4974e7 1730/* identifier ::= <(unqualified source code identifier)> */
168d63e5 1731
f95cb811 1732static struct demangle_component *
7d235b1b 1733d_identifier (struct d_info *di, int len)
168d63e5 1734{
1b4974e7 1735 const char *name;
168d63e5 1736
1b4974e7 1737 name = d_str (di);
2c0843db 1738
1739 if (di->send - name < len)
1740 return NULL;
1741
1b4974e7 1742 d_advance (di, len);
168d63e5 1743
abe6933a 1744 /* A Java mangled name may have a trailing '$' if it is a C++
1745 keyword. This '$' is not included in the length count. We just
1746 ignore the '$'. */
1747 if ((di->options & DMGL_JAVA) != 0
1748 && d_peek_char (di) == '$')
1749 d_advance (di, 1);
1750
1b4974e7 1751 /* Look for something which looks like a gcc encoding of an
1752 anonymous namespace, and replace it with a more user friendly
1753 name. */
7d235b1b 1754 if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2
1b4974e7 1755 && memcmp (name, ANONYMOUS_NAMESPACE_PREFIX,
1756 ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0)
168d63e5 1757 {
1b4974e7 1758 const char *s;
1759
1760 s = name + ANONYMOUS_NAMESPACE_PREFIX_LEN;
1761 if ((*s == '.' || *s == '_' || *s == '$')
1762 && s[1] == 'N')
2c0843db 1763 {
1764 di->expansion -= len - sizeof "(anonymous namespace)";
1765 return d_make_name (di, "(anonymous namespace)",
1766 sizeof "(anonymous namespace)" - 1);
1767 }
168d63e5 1768 }
1b4974e7 1769
1770 return d_make_name (di, name, len);
168d63e5 1771}
1772
1b4974e7 1773/* operator_name ::= many different two character encodings.
1774 ::= cv <type>
1775 ::= v <digit> <source-name>
407e46c7 1776
1777 This list is sorted for binary search. */
168d63e5 1778
2c0843db 1779#define NL(s) s, (sizeof s) - 1
1780
f95cb811 1781CP_STATIC_IF_GLIBCPP_V3
1782const struct demangle_operator_info cplus_demangle_operators[] =
1b4974e7 1783{
2c0843db 1784 { "aN", NL ("&="), 2 },
1785 { "aS", NL ("="), 2 },
1786 { "aa", NL ("&&"), 2 },
1787 { "ad", NL ("&"), 1 },
1788 { "an", NL ("&"), 2 },
407e46c7 1789 { "at", NL ("alignof "), 1 },
1790 { "az", NL ("alignof "), 1 },
6434e009 1791 { "cc", NL ("const_cast"), 2 },
a2ad5e1b 1792 { "cl", NL ("()"), 2 },
2c0843db 1793 { "cm", NL (","), 2 },
1794 { "co", NL ("~"), 1 },
1795 { "dV", NL ("/="), 2 },
2d847c18 1796 { "da", NL ("delete[] "), 1 },
6434e009 1797 { "dc", NL ("dynamic_cast"), 2 },
2c0843db 1798 { "de", NL ("*"), 1 },
2d847c18 1799 { "dl", NL ("delete "), 1 },
1800 { "ds", NL (".*"), 2 },
4682b6fe 1801 { "dt", NL ("."), 2 },
2c0843db 1802 { "dv", NL ("/"), 2 },
1803 { "eO", NL ("^="), 2 },
1804 { "eo", NL ("^"), 2 },
1805 { "eq", NL ("=="), 2 },
5bb83f10 1806 { "fL", NL ("..."), 3 },
1807 { "fR", NL ("..."), 3 },
1808 { "fl", NL ("..."), 2 },
1809 { "fr", NL ("..."), 2 },
2c0843db 1810 { "ge", NL (">="), 2 },
2d847c18 1811 { "gs", NL ("::"), 1 },
2c0843db 1812 { "gt", NL (">"), 2 },
1813 { "ix", NL ("[]"), 2 },
1814 { "lS", NL ("<<="), 2 },
1815 { "le", NL ("<="), 2 },
307586fb 1816 { "li", NL ("operator\"\" "), 1 },
2c0843db 1817 { "ls", NL ("<<"), 2 },
1818 { "lt", NL ("<"), 2 },
1819 { "mI", NL ("-="), 2 },
1820 { "mL", NL ("*="), 2 },
1821 { "mi", NL ("-"), 2 },
1822 { "ml", NL ("*"), 2 },
1823 { "mm", NL ("--"), 1 },
2d847c18 1824 { "na", NL ("new[]"), 3 },
2c0843db 1825 { "ne", NL ("!="), 2 },
1826 { "ng", NL ("-"), 1 },
1827 { "nt", NL ("!"), 1 },
2d847c18 1828 { "nw", NL ("new"), 3 },
2c0843db 1829 { "oR", NL ("|="), 2 },
1830 { "oo", NL ("||"), 2 },
1831 { "or", NL ("|"), 2 },
1832 { "pL", NL ("+="), 2 },
1833 { "pl", NL ("+"), 2 },
1834 { "pm", NL ("->*"), 2 },
1835 { "pp", NL ("++"), 1 },
1836 { "ps", NL ("+"), 1 },
1837 { "pt", NL ("->"), 2 },
1838 { "qu", NL ("?"), 3 },
1839 { "rM", NL ("%="), 2 },
1840 { "rS", NL (">>="), 2 },
6434e009 1841 { "rc", NL ("reinterpret_cast"), 2 },
2c0843db 1842 { "rm", NL ("%"), 2 },
1843 { "rs", NL (">>"), 2 },
17fdf85c 1844 { "sP", NL ("sizeof..."), 1 },
1845 { "sZ", NL ("sizeof..."), 1 },
6434e009 1846 { "sc", NL ("static_cast"), 2 },
2c0843db 1847 { "st", NL ("sizeof "), 1 },
f95cb811 1848 { "sz", NL ("sizeof "), 1 },
2d847c18 1849 { "tr", NL ("throw"), 0 },
1850 { "tw", NL ("throw "), 1 },
f95cb811 1851 { NULL, NULL, 0, 0 }
1b4974e7 1852};
168d63e5 1853
f95cb811 1854static struct demangle_component *
d94aaf66 1855d_operator_name (struct d_info *di)
168d63e5 1856{
1b4974e7 1857 char c1;
1858 char c2;
168d63e5 1859
1b4974e7 1860 c1 = d_next_char (di);
1861 c2 = d_next_char (di);
1862 if (c1 == 'v' && IS_DIGIT (c2))
1863 return d_make_extended_operator (di, c2 - '0', d_source_name (di));
1864 else if (c1 == 'c' && c2 == 'v')
f89ffc3b 1865 {
1866 struct demangle_component *type;
1867 int was_conversion = di->is_conversion;
88845c03 1868 struct demangle_component *res;
f89ffc3b 1869
1870 di->is_conversion = ! di->is_expression;
1871 type = cplus_demangle_type (di);
88845c03 1872 if (di->is_conversion)
1873 res = d_make_comp (di, DEMANGLE_COMPONENT_CONVERSION, type, NULL);
1874 else
1875 res = d_make_comp (di, DEMANGLE_COMPONENT_CAST, type, NULL);
f89ffc3b 1876 di->is_conversion = was_conversion;
88845c03 1877 return res;
f89ffc3b 1878 }
1b4974e7 1879 else
168d63e5 1880 {
f95cb811 1881 /* LOW is the inclusive lower bound. */
1b4974e7 1882 int low = 0;
f95cb811 1883 /* HIGH is the exclusive upper bound. We subtract one to ignore
1884 the sentinel at the end of the array. */
1885 int high = ((sizeof (cplus_demangle_operators)
1886 / sizeof (cplus_demangle_operators[0]))
1887 - 1);
168d63e5 1888
1b4974e7 1889 while (1)
1890 {
1891 int i;
f95cb811 1892 const struct demangle_operator_info *p;
168d63e5 1893
1b4974e7 1894 i = low + (high - low) / 2;
f95cb811 1895 p = cplus_demangle_operators + i;
168d63e5 1896
1b4974e7 1897 if (c1 == p->code[0] && c2 == p->code[1])
1898 return d_make_operator (di, p);
1899
1900 if (c1 < p->code[0] || (c1 == p->code[0] && c2 < p->code[1]))
1901 high = i;
1902 else
1903 low = i + 1;
1904 if (low == high)
1905 return NULL;
1906 }
1907 }
168d63e5 1908}
1909
c8d35c3c 1910static struct demangle_component *
1911d_make_character (struct d_info *di, int c)
1912{
1913 struct demangle_component *p;
1914 p = d_make_empty (di);
1915 if (p != NULL)
1916 {
1917 p->type = DEMANGLE_COMPONENT_CHARACTER;
1918 p->u.s_character.character = c;
1919 }
1920 return p;
1921}
1922
1923static struct demangle_component *
1924d_java_resource (struct d_info *di)
1925{
1926 struct demangle_component *p = NULL;
1927 struct demangle_component *next = NULL;
7d235b1b 1928 int len, i;
c8d35c3c 1929 char c;
1930 const char *str;
1931
1932 len = d_number (di);
1933 if (len <= 1)
1934 return NULL;
1935
1936 /* Eat the leading '_'. */
1937 if (d_next_char (di) != '_')
1938 return NULL;
1939 len--;
1940
1941 str = d_str (di);
1942 i = 0;
1943
1944 while (len > 0)
1945 {
1946 c = str[i];
1947 if (!c)
1948 return NULL;
1949
1950 /* Each chunk is either a '$' escape... */
1951 if (c == '$')
1952 {
1953 i++;
1954 switch (str[i++])
1955 {
1956 case 'S':
1957 c = '/';
1958 break;
1959 case '_':
1960 c = '.';
1961 break;
1962 case '$':
1963 c = '$';
1964 break;
1965 default:
1966 return NULL;
1967 }
1968 next = d_make_character (di, c);
1969 d_advance (di, i);
1970 str = d_str (di);
1971 len -= i;
1972 i = 0;
1973 if (next == NULL)
1974 return NULL;
1975 }
1976 /* ... or a sequence of characters. */
1977 else
1978 {
1979 while (i < len && str[i] && str[i] != '$')
1980 i++;
1981
1982 next = d_make_name (di, str, i);
1983 d_advance (di, i);
1984 str = d_str (di);
1985 len -= i;
1986 i = 0;
1987 if (next == NULL)
1988 return NULL;
1989 }
1990
1991 if (p == NULL)
1992 p = next;
1993 else
1994 {
1995 p = d_make_comp (di, DEMANGLE_COMPONENT_COMPOUND_NAME, p, next);
1996 if (p == NULL)
1997 return NULL;
1998 }
1999 }
2000
2001 p = d_make_comp (di, DEMANGLE_COMPONENT_JAVA_RESOURCE, p, NULL);
2002
2003 return p;
2004}
2005
1b4974e7 2006/* <special-name> ::= TV <type>
2007 ::= TT <type>
2008 ::= TI <type>
2009 ::= TS <type>
2010 ::= GV <(object) name>
2011 ::= T <call-offset> <(base) encoding>
2012 ::= Tc <call-offset> <call-offset> <(base) encoding>
2013 Also g++ extensions:
2014 ::= TC <type> <(offset) number> _ <(base) type>
2015 ::= TF <type>
2016 ::= TJ <type>
2017 ::= GR <name>
e63e3841 2018 ::= GA <encoding>
c8d35c3c 2019 ::= Gr <resource name>
4c0315d0 2020 ::= GTt <encoding>
2021 ::= GTn <encoding>
1b4974e7 2022*/
168d63e5 2023
f95cb811 2024static struct demangle_component *
d94aaf66 2025d_special_name (struct d_info *di)
168d63e5 2026{
2c0843db 2027 di->expansion += 20;
b785de4a 2028 if (d_check_char (di, 'T'))
140d75d7 2029 {
1b4974e7 2030 switch (d_next_char (di))
2031 {
2032 case 'V':
2c0843db 2033 di->expansion -= 5;
f95cb811 2034 return d_make_comp (di, DEMANGLE_COMPONENT_VTABLE,
2035 cplus_demangle_type (di), NULL);
1b4974e7 2036 case 'T':
2c0843db 2037 di->expansion -= 10;
f95cb811 2038 return d_make_comp (di, DEMANGLE_COMPONENT_VTT,
2039 cplus_demangle_type (di), NULL);
1b4974e7 2040 case 'I':
f95cb811 2041 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO,
2042 cplus_demangle_type (di), NULL);
1b4974e7 2043 case 'S':
f95cb811 2044 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_NAME,
2045 cplus_demangle_type (di), NULL);
168d63e5 2046
1b4974e7 2047 case 'h':
2048 if (! d_call_offset (di, 'h'))
2049 return NULL;
f95cb811 2050 return d_make_comp (di, DEMANGLE_COMPONENT_THUNK,
2051 d_encoding (di, 0), NULL);
168d63e5 2052
1b4974e7 2053 case 'v':
2054 if (! d_call_offset (di, 'v'))
2055 return NULL;
f95cb811 2056 return d_make_comp (di, DEMANGLE_COMPONENT_VIRTUAL_THUNK,
2057 d_encoding (di, 0), NULL);
168d63e5 2058
1b4974e7 2059 case 'c':
2060 if (! d_call_offset (di, '\0'))
2061 return NULL;
2062 if (! d_call_offset (di, '\0'))
2063 return NULL;
f95cb811 2064 return d_make_comp (di, DEMANGLE_COMPONENT_COVARIANT_THUNK,
2065 d_encoding (di, 0), NULL);
168d63e5 2066
1b4974e7 2067 case 'C':
2068 {
f95cb811 2069 struct demangle_component *derived_type;
7d235b1b 2070 int offset;
f95cb811 2071 struct demangle_component *base_type;
1b4974e7 2072
f95cb811 2073 derived_type = cplus_demangle_type (di);
1b4974e7 2074 offset = d_number (di);
2075 if (offset < 0)
2076 return NULL;
b785de4a 2077 if (! d_check_char (di, '_'))
1b4974e7 2078 return NULL;
f95cb811 2079 base_type = cplus_demangle_type (di);
1b4974e7 2080 /* We don't display the offset. FIXME: We should display
2081 it in verbose mode. */
2c0843db 2082 di->expansion += 5;
f95cb811 2083 return d_make_comp (di, DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
2084 base_type, derived_type);
1b4974e7 2085 }
168d63e5 2086
1b4974e7 2087 case 'F':
f95cb811 2088 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_FN,
2089 cplus_demangle_type (di), NULL);
1b4974e7 2090 case 'J':
f95cb811 2091 return d_make_comp (di, DEMANGLE_COMPONENT_JAVA_CLASS,
2092 cplus_demangle_type (di), NULL);
168d63e5 2093
462819c8 2094 case 'H':
2095 return d_make_comp (di, DEMANGLE_COMPONENT_TLS_INIT,
3dc558bb 2096 d_name (di), NULL);
462819c8 2097
2098 case 'W':
2099 return d_make_comp (di, DEMANGLE_COMPONENT_TLS_WRAPPER,
3dc558bb 2100 d_name (di), NULL);
462819c8 2101
1b4974e7 2102 default:
2103 return NULL;
2104 }
168d63e5 2105 }
b785de4a 2106 else if (d_check_char (di, 'G'))
168d63e5 2107 {
1b4974e7 2108 switch (d_next_char (di))
2109 {
2110 case 'V':
4e5e8012 2111 return d_make_comp (di, DEMANGLE_COMPONENT_GUARD,
3dc558bb 2112 d_name (di), NULL);
1b4974e7 2113
2114 case 'R':
c7b89256 2115 {
3dc558bb 2116 struct demangle_component *name = d_name (di);
c7b89256 2117 return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, name,
2118 d_number_component (di));
2119 }
1b4974e7 2120
e63e3841 2121 case 'A':
2122 return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS,
2123 d_encoding (di, 0), NULL);
2124
4c0315d0 2125 case 'T':
2126 switch (d_next_char (di))
2127 {
2128 case 'n':
2129 return d_make_comp (di, DEMANGLE_COMPONENT_NONTRANSACTION_CLONE,
2130 d_encoding (di, 0), NULL);
2131 default:
2132 /* ??? The proposal is that other letters (such as 'h') stand
2133 for different variants of transaction cloning, such as
2134 compiling directly for hardware transaction support. But
2135 they still should all be transactional clones of some sort
2136 so go ahead and call them that. */
2137 case 't':
2138 return d_make_comp (di, DEMANGLE_COMPONENT_TRANSACTION_CLONE,
2139 d_encoding (di, 0), NULL);
2140 }
2141
c8d35c3c 2142 case 'r':
2143 return d_java_resource (di);
2144
1b4974e7 2145 default:
2146 return NULL;
2147 }
168d63e5 2148 }
1b4974e7 2149 else
2150 return NULL;
168d63e5 2151}
2152
1b4974e7 2153/* <call-offset> ::= h <nv-offset> _
2154 ::= v <v-offset> _
168d63e5 2155
1b4974e7 2156 <nv-offset> ::= <(offset) number>
168d63e5 2157
1b4974e7 2158 <v-offset> ::= <(offset) number> _ <(virtual offset) number>
168d63e5 2159
1b4974e7 2160 The C parameter, if not '\0', is a character we just read which is
2161 the start of the <call-offset>.
168d63e5 2162
1b4974e7 2163 We don't display the offset information anywhere. FIXME: We should
2164 display it in verbose mode. */
168d63e5 2165
1b4974e7 2166static int
d94aaf66 2167d_call_offset (struct d_info *di, int c)
168d63e5 2168{
1b4974e7 2169 if (c == '\0')
2170 c = d_next_char (di);
168d63e5 2171
1b4974e7 2172 if (c == 'h')
0aef8b79 2173 d_number (di);
1b4974e7 2174 else if (c == 'v')
168d63e5 2175 {
0aef8b79 2176 d_number (di);
b785de4a 2177 if (! d_check_char (di, '_'))
1b4974e7 2178 return 0;
0aef8b79 2179 d_number (di);
168d63e5 2180 }
1b4974e7 2181 else
2182 return 0;
168d63e5 2183
b785de4a 2184 if (! d_check_char (di, '_'))
1b4974e7 2185 return 0;
168d63e5 2186
1b4974e7 2187 return 1;
168d63e5 2188}
2189
1b4974e7 2190/* <ctor-dtor-name> ::= C1
2191 ::= C2
2192 ::= C3
2193 ::= D0
2194 ::= D1
2195 ::= D2
2196*/
2197
f95cb811 2198static struct demangle_component *
d94aaf66 2199d_ctor_dtor_name (struct d_info *di)
1b4974e7 2200{
2c0843db 2201 if (di->last_name != NULL)
2202 {
f95cb811 2203 if (di->last_name->type == DEMANGLE_COMPONENT_NAME)
2c0843db 2204 di->expansion += di->last_name->u.s_name.len;
f95cb811 2205 else if (di->last_name->type == DEMANGLE_COMPONENT_SUB_STD)
2c0843db 2206 di->expansion += di->last_name->u.s_string.len;
2207 }
b785de4a 2208 switch (d_peek_char (di))
1b4974e7 2209 {
2210 case 'C':
2211 {
2212 enum gnu_v3_ctor_kinds kind;
7896267d 2213 int inheriting = 0;
2214
2215 if (d_peek_next_char (di) == 'I')
2216 {
2217 inheriting = 1;
2218 d_advance (di, 1);
2219 }
1b4974e7 2220
b785de4a 2221 switch (d_peek_next_char (di))
1b4974e7 2222 {
2223 case '1':
2224 kind = gnu_v3_complete_object_ctor;
2225 break;
2226 case '2':
2227 kind = gnu_v3_base_object_ctor;
2228 break;
2229 case '3':
2230 kind = gnu_v3_complete_object_allocating_ctor;
2231 break;
468088ac 2232 case '4':
2233 kind = gnu_v3_unified_ctor;
2234 break;
4c0315d0 2235 case '5':
2236 kind = gnu_v3_object_ctor_group;
2237 break;
1b4974e7 2238 default:
2239 return NULL;
2240 }
7896267d 2241
b785de4a 2242 d_advance (di, 2);
7896267d 2243
2244 if (inheriting)
2245 cplus_demangle_type (di);
2246
1b4974e7 2247 return d_make_ctor (di, kind, di->last_name);
2248 }
2249
2250 case 'D':
2251 {
2252 enum gnu_v3_dtor_kinds kind;
2253
b785de4a 2254 switch (d_peek_next_char (di))
1b4974e7 2255 {
2256 case '0':
2257 kind = gnu_v3_deleting_dtor;
2258 break;
2259 case '1':
2260 kind = gnu_v3_complete_object_dtor;
2261 break;
2262 case '2':
2263 kind = gnu_v3_base_object_dtor;
2264 break;
468088ac 2265 /* digit '3' is not used */
2266 case '4':
2267 kind = gnu_v3_unified_dtor;
2268 break;
4c0315d0 2269 case '5':
2270 kind = gnu_v3_object_dtor_group;
2271 break;
1b4974e7 2272 default:
2273 return NULL;
2274 }
b785de4a 2275 d_advance (di, 2);
1b4974e7 2276 return d_make_dtor (di, kind, di->last_name);
2277 }
168d63e5 2278
1b4974e7 2279 default:
2280 return NULL;
2281 }
2282}
168d63e5 2283
2e9e9363 2284/* True iff we're looking at an order-insensitive type-qualifier, including
2285 function-type-qualifiers. */
2286
2287static int
2288next_is_type_qual (struct d_info *di)
2289{
2290 char peek = d_peek_char (di);
2291 if (peek == 'r' || peek == 'V' || peek == 'K')
2292 return 1;
2293 if (peek == 'D')
2294 {
2295 peek = d_peek_next_char (di);
2296 if (peek == 'x' || peek == 'o' || peek == 'O' || peek == 'w')
2297 return 1;
2298 }
2299 return 0;
2300}
2301
1b4974e7 2302/* <type> ::= <builtin-type>
2303 ::= <function-type>
2304 ::= <class-enum-type>
2305 ::= <array-type>
2306 ::= <pointer-to-member-type>
2307 ::= <template-param>
2308 ::= <template-template-param> <template-args>
2309 ::= <substitution>
2310 ::= <CV-qualifiers> <type>
2311 ::= P <type>
2312 ::= R <type>
c4692e04 2313 ::= O <type> (C++0x)
1b4974e7 2314 ::= C <type>
2315 ::= G <type>
2316 ::= U <source-name> <type>
2317
2318 <builtin-type> ::= various one letter codes
2319 ::= u <source-name>
2320*/
168d63e5 2321
f95cb811 2322CP_STATIC_IF_GLIBCPP_V3
2323const struct demangle_builtin_type_info
2324cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT] =
1b4974e7 2325{
a86aec34 2326 /* a */ { NL ("signed char"), NL ("signed char"), D_PRINT_DEFAULT },
2c0843db 2327 /* b */ { NL ("bool"), NL ("boolean"), D_PRINT_BOOL },
a86aec34 2328 /* c */ { NL ("char"), NL ("byte"), D_PRINT_DEFAULT },
2329 /* d */ { NL ("double"), NL ("double"), D_PRINT_FLOAT },
2330 /* e */ { NL ("long double"), NL ("long double"), D_PRINT_FLOAT },
2331 /* f */ { NL ("float"), NL ("float"), D_PRINT_FLOAT },
2332 /* g */ { NL ("__float128"), NL ("__float128"), D_PRINT_FLOAT },
2333 /* h */ { NL ("unsigned char"), NL ("unsigned char"), D_PRINT_DEFAULT },
2c0843db 2334 /* i */ { NL ("int"), NL ("int"), D_PRINT_INT },
a86aec34 2335 /* j */ { NL ("unsigned int"), NL ("unsigned"), D_PRINT_UNSIGNED },
2c0843db 2336 /* k */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2337 /* l */ { NL ("long"), NL ("long"), D_PRINT_LONG },
a86aec34 2338 /* m */ { NL ("unsigned long"), NL ("unsigned long"), D_PRINT_UNSIGNED_LONG },
2c0843db 2339 /* n */ { NL ("__int128"), NL ("__int128"), D_PRINT_DEFAULT },
a86aec34 2340 /* o */ { NL ("unsigned __int128"), NL ("unsigned __int128"),
2341 D_PRINT_DEFAULT },
4682b6fe 2342 /* p */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2343 /* q */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2344 /* r */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
a86aec34 2345 /* s */ { NL ("short"), NL ("short"), D_PRINT_DEFAULT },
2346 /* t */ { NL ("unsigned short"), NL ("unsigned short"), D_PRINT_DEFAULT },
4682b6fe 2347 /* u */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2c0843db 2348 /* v */ { NL ("void"), NL ("void"), D_PRINT_VOID },
a86aec34 2349 /* w */ { NL ("wchar_t"), NL ("char"), D_PRINT_DEFAULT },
2350 /* x */ { NL ("long long"), NL ("long"), D_PRINT_LONG_LONG },
2351 /* y */ { NL ("unsigned long long"), NL ("unsigned long long"),
2352 D_PRINT_UNSIGNED_LONG_LONG },
2c0843db 2353 /* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT },
4682b6fe 2354 /* 26 */ { NL ("decimal32"), NL ("decimal32"), D_PRINT_DEFAULT },
2355 /* 27 */ { NL ("decimal64"), NL ("decimal64"), D_PRINT_DEFAULT },
2356 /* 28 */ { NL ("decimal128"), NL ("decimal128"), D_PRINT_DEFAULT },
2357 /* 29 */ { NL ("half"), NL ("half"), D_PRINT_FLOAT },
2358 /* 30 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT },
2359 /* 31 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT },
6fe11077 2360 /* 32 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"),
2361 D_PRINT_DEFAULT },
1b4974e7 2362};
168d63e5 2363
f95cb811 2364CP_STATIC_IF_GLIBCPP_V3
2365struct demangle_component *
d94aaf66 2366cplus_demangle_type (struct d_info *di)
168d63e5 2367{
1b4974e7 2368 char peek;
f95cb811 2369 struct demangle_component *ret;
1b4974e7 2370 int can_subst;
2371
2372 /* The ABI specifies that when CV-qualifiers are used, the base type
2373 is substitutable, and the fully qualified type is substitutable,
2374 but the base type with a strict subset of the CV-qualifiers is
2375 not substitutable. The natural recursive implementation of the
2376 CV-qualifiers would cause subsets to be substitutable, so instead
2377 we pull them all off now.
2378
c1ea6f0c 2379 FIXME: The ABI says that order-insensitive vendor qualifiers
2380 should be handled in the same way, but we have no way to tell
2381 which vendor qualifiers are order-insensitive and which are
2382 order-sensitive. So we just assume that they are all
2383 order-sensitive. g++ 3.4 supports only one vendor qualifier,
2384 __vector, and it treats it as order-sensitive when mangling
2385 names. */
1b4974e7 2386
2e9e9363 2387 if (next_is_type_qual (di))
1b4974e7 2388 {
f95cb811 2389 struct demangle_component **pret;
168d63e5 2390
3c87c5c3 2391 pret = d_cv_qualifiers (di, &ret, 0);
c1ea6f0c 2392 if (pret == NULL)
2393 return NULL;
862e5b6d 2394 if (d_peek_char (di) == 'F')
2395 {
2396 /* cv-qualifiers before a function type apply to 'this',
2397 so avoid adding the unqualified function type to
2398 the substitution list. */
2399 *pret = d_function_type (di);
2400 }
2401 else
2402 *pret = cplus_demangle_type (di);
2403 if (!*pret)
1189258f 2404 return NULL;
2405 if ((*pret)->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS
2406 || (*pret)->type == DEMANGLE_COMPONENT_REFERENCE_THIS)
2407 {
2408 /* Move the ref-qualifier outside the cv-qualifiers so that
2409 they are printed in the right order. */
2410 struct demangle_component *fn = d_left (*pret);
2411 d_left (*pret) = ret;
2412 ret = *pret;
2413 *pret = fn;
2414 }
2415 if (! d_add_substitution (di, ret))
1b4974e7 2416 return NULL;
2417 return ret;
2418 }
cf70278e 2419
1b4974e7 2420 can_subst = 1;
168d63e5 2421
2e9e9363 2422 peek = d_peek_char (di);
f8aeab41 2423 switch (peek)
168d63e5 2424 {
1b4974e7 2425 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
2426 case 'h': case 'i': case 'j': case 'l': case 'm': case 'n':
2427 case 'o': case 's': case 't':
2428 case 'v': case 'w': case 'x': case 'y': case 'z':
f95cb811 2429 ret = d_make_builtin_type (di,
2430 &cplus_demangle_builtin_types[peek - 'a']);
2c0843db 2431 di->expansion += ret->u.s_builtin.type->len;
1b4974e7 2432 can_subst = 0;
2433 d_advance (di, 1);
2434 break;
2435
2436 case 'u':
2437 d_advance (di, 1);
f95cb811 2438 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE,
2439 d_source_name (di), NULL);
1b4974e7 2440 break;
2441
2442 case 'F':
2443 ret = d_function_type (di);
168d63e5 2444 break;
2445
1b4974e7 2446 case '0': case '1': case '2': case '3': case '4':
2447 case '5': case '6': case '7': case '8': case '9':
2448 case 'N':
168d63e5 2449 case 'Z':
1b4974e7 2450 ret = d_class_enum_type (di);
168d63e5 2451 break;
2452
1b4974e7 2453 case 'A':
2454 ret = d_array_type (di);
2455 break;
2456
2457 case 'M':
2458 ret = d_pointer_to_member_type (di);
2459 break;
2460
2461 case 'T':
2462 ret = d_template_param (di);
2463 if (d_peek_char (di) == 'I')
b7f68aff 2464 {
f89ffc3b 2465 /* This may be <template-template-param> <template-args>.
2466 If this is the type for a conversion operator, we can
2467 have a <template-template-param> here only by following
2468 a derivation like this:
2469
2470 <nested-name>
2471 -> <template-prefix> <template-args>
2472 -> <prefix> <template-unqualified-name> <template-args>
2473 -> <unqualified-name> <template-unqualified-name> <template-args>
2474 -> <source-name> <template-unqualified-name> <template-args>
2475 -> <source-name> <operator-name> <template-args>
2476 -> <source-name> cv <type> <template-args>
2477 -> <source-name> cv <template-template-param> <template-args> <template-args>
2478
2479 where the <template-args> is followed by another.
2480 Otherwise, we must have a derivation like this:
2481
2482 <nested-name>
2483 -> <template-prefix> <template-args>
2484 -> <prefix> <template-unqualified-name> <template-args>
2485 -> <unqualified-name> <template-unqualified-name> <template-args>
2486 -> <source-name> <template-unqualified-name> <template-args>
2487 -> <source-name> <operator-name> <template-args>
2488 -> <source-name> cv <type> <template-args>
2489 -> <source-name> cv <template-param> <template-args>
2490
2491 where we need to leave the <template-args> to be processed
2492 by d_prefix (following the <template-prefix>).
2493
2494 The <template-template-param> part is a substitution
1b4974e7 2495 candidate. */
f89ffc3b 2496 if (! di->is_conversion)
2497 {
2498 if (! d_add_substitution (di, ret))
2499 return NULL;
2500 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2501 d_template_args (di));
2502 }
2503 else
2504 {
2505 struct demangle_component *args;
2506 struct d_info_checkpoint checkpoint;
2507
2508 d_checkpoint (di, &checkpoint);
2509 args = d_template_args (di);
2510 if (d_peek_char (di) == 'I')
2511 {
2512 if (! d_add_substitution (di, ret))
2513 return NULL;
2514 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2515 args);
2516 }
2517 else
2518 d_backtrack (di, &checkpoint);
2519 }
b7f68aff 2520 }
1b4974e7 2521 break;
2522
2523 case 'S':
2524 /* If this is a special substitution, then it is the start of
2525 <class-enum-type>. */
2526 {
2527 char peek_next;
62c2feed 2528
1b4974e7 2529 peek_next = d_peek_next_char (di);
2530 if (IS_DIGIT (peek_next)
2531 || peek_next == '_'
3c87c5c3 2532 || IS_UPPER (peek_next))
1b4974e7 2533 {
b69d25f7 2534 ret = d_substitution (di, 0);
1b4974e7 2535 /* The substituted name may have been a template name and
2536 may be followed by tepmlate args. */
2537 if (d_peek_char (di) == 'I')
f95cb811 2538 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
1b4974e7 2539 d_template_args (di));
2540 else
2541 can_subst = 0;
2542 }
2543 else
2544 {
2545 ret = d_class_enum_type (di);
2546 /* If the substitution was a complete type, then it is not
2547 a new substitution candidate. However, if the
2548 substitution was followed by template arguments, then
2549 the whole thing is a substitution candidate. */
f95cb811 2550 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_SUB_STD)
1b4974e7 2551 can_subst = 0;
2552 }
2553 }
168d63e5 2554 break;
2555
c4692e04 2556 case 'O':
2557 d_advance (di, 1);
2558 ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE,
2559 cplus_demangle_type (di), NULL);
2560 break;
2561
1b4974e7 2562 case 'P':
2563 d_advance (di, 1);
f95cb811 2564 ret = d_make_comp (di, DEMANGLE_COMPONENT_POINTER,
2565 cplus_demangle_type (di), NULL);
1b4974e7 2566 break;
168d63e5 2567
1b4974e7 2568 case 'R':
2569 d_advance (di, 1);
f95cb811 2570 ret = d_make_comp (di, DEMANGLE_COMPONENT_REFERENCE,
c4692e04 2571 cplus_demangle_type (di), NULL);
1b4974e7 2572 break;
168d63e5 2573
1b4974e7 2574 case 'C':
2575 d_advance (di, 1);
f95cb811 2576 ret = d_make_comp (di, DEMANGLE_COMPONENT_COMPLEX,
2577 cplus_demangle_type (di), NULL);
1b4974e7 2578 break;
2579
2580 case 'G':
2581 d_advance (di, 1);
f95cb811 2582 ret = d_make_comp (di, DEMANGLE_COMPONENT_IMAGINARY,
2583 cplus_demangle_type (di), NULL);
1b4974e7 2584 break;
168d63e5 2585
1b4974e7 2586 case 'U':
2587 d_advance (di, 1);
2588 ret = d_source_name (di);
399fbdbd 2589 if (d_peek_char (di) == 'I')
2590 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2591 d_template_args (di));
f95cb811 2592 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
2593 cplus_demangle_type (di), ret);
168d63e5 2594 break;
1b4974e7 2595
a2ad5e1b 2596 case 'D':
2597 can_subst = 0;
2598 d_advance (di, 1);
2599 peek = d_next_char (di);
2600 switch (peek)
2601 {
2602 case 'T':
2603 case 't':
2604 /* decltype (expression) */
2605 ret = d_make_comp (di, DEMANGLE_COMPONENT_DECLTYPE,
2606 d_expression (di), NULL);
2607 if (ret && d_next_char (di) != 'E')
2608 ret = NULL;
407e46c7 2609 can_subst = 1;
a2ad5e1b 2610 break;
2611
2612 case 'p':
2613 /* Pack expansion. */
4682b6fe 2614 ret = d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
2615 cplus_demangle_type (di), NULL);
407e46c7 2616 can_subst = 1;
4682b6fe 2617 break;
1610993e 2618
2619 case 'a':
2620 /* auto */
2621 ret = d_make_name (di, "auto", 4);
2622 break;
ba3f376e 2623 case 'c':
2624 /* decltype(auto) */
2625 ret = d_make_name (di, "decltype(auto)", 14);
2626 break;
2627
a2ad5e1b 2628 case 'f':
4682b6fe 2629 /* 32-bit decimal floating point */
2630 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);
a2ad5e1b 2631 di->expansion += ret->u.s_builtin.type->len;
2632 break;
2633 case 'd':
4682b6fe 2634 /* 64-bit DFP */
2635 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[27]);
a2ad5e1b 2636 di->expansion += ret->u.s_builtin.type->len;
2637 break;
2638 case 'e':
2639 /* 128-bit DFP */
4682b6fe 2640 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[28]);
a2ad5e1b 2641 di->expansion += ret->u.s_builtin.type->len;
2642 break;
2643 case 'h':
2644 /* 16-bit half-precision FP */
4682b6fe 2645 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]);
2646 di->expansion += ret->u.s_builtin.type->len;
2647 break;
2648 case 's':
2649 /* char16_t */
2650 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
2651 di->expansion += ret->u.s_builtin.type->len;
2652 break;
2653 case 'i':
2654 /* char32_t */
2655 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
a2ad5e1b 2656 di->expansion += ret->u.s_builtin.type->len;
2657 break;
e4583147 2658
2659 case 'F':
2660 /* Fixed point types. DF<int bits><length><fract bits><sat> */
2661 ret = d_make_empty (di);
2662 ret->type = DEMANGLE_COMPONENT_FIXED_TYPE;
2663 if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di))))
2664 /* For demangling we don't care about the bits. */
2665 d_number (di);
2666 ret->u.s_fixed.length = cplus_demangle_type (di);
9734aa00 2667 if (ret->u.s_fixed.length == NULL)
2668 return NULL;
e4583147 2669 d_number (di);
2670 peek = d_next_char (di);
2671 ret->u.s_fixed.sat = (peek == 's');
2672 break;
c960ca50 2673
29e2e80a 2674 case 'v':
2675 ret = d_vector_type (di);
407e46c7 2676 can_subst = 1;
29e2e80a 2677 break;
2678
6fe11077 2679 case 'n':
2680 /* decltype(nullptr) */
2681 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[32]);
2682 di->expansion += ret->u.s_builtin.type->len;
2683 break;
2684
c960ca50 2685 default:
2686 return NULL;
a2ad5e1b 2687 }
2688 break;
2689
1b4974e7 2690 default:
2691 return NULL;
168d63e5 2692 }
2693
1b4974e7 2694 if (can_subst)
2695 {
2696 if (! d_add_substitution (di, ret))
2697 return NULL;
2698 }
168d63e5 2699
1b4974e7 2700 return ret;
2701}
168d63e5 2702
6d02e6b2 2703/* <CV-qualifiers> ::= [r] [V] [K] [Dx] */
168d63e5 2704
f95cb811 2705static struct demangle_component **
d94aaf66 2706d_cv_qualifiers (struct d_info *di,
2707 struct demangle_component **pret, int member_fn)
168d63e5 2708{
94dcf771 2709 struct demangle_component **pstart;
168d63e5 2710 char peek;
2711
94dcf771 2712 pstart = pret;
1b4974e7 2713 peek = d_peek_char (di);
2e9e9363 2714 while (next_is_type_qual (di))
168d63e5 2715 {
f95cb811 2716 enum demangle_component_type t;
2e9e9363 2717 struct demangle_component *right = NULL;
f99edf23 2718
1b4974e7 2719 d_advance (di, 1);
2720 if (peek == 'r')
2c0843db 2721 {
f95cb811 2722 t = (member_fn
2723 ? DEMANGLE_COMPONENT_RESTRICT_THIS
2724 : DEMANGLE_COMPONENT_RESTRICT);
2c0843db 2725 di->expansion += sizeof "restrict";
2726 }
1b4974e7 2727 else if (peek == 'V')
2c0843db 2728 {
f95cb811 2729 t = (member_fn
2730 ? DEMANGLE_COMPONENT_VOLATILE_THIS
2731 : DEMANGLE_COMPONENT_VOLATILE);
2c0843db 2732 di->expansion += sizeof "volatile";
2733 }
6d02e6b2 2734 else if (peek == 'K')
2c0843db 2735 {
f95cb811 2736 t = (member_fn
2737 ? DEMANGLE_COMPONENT_CONST_THIS
2738 : DEMANGLE_COMPONENT_CONST);
2c0843db 2739 di->expansion += sizeof "const";
2740 }
6d02e6b2 2741 else
2742 {
2e9e9363 2743 peek = d_next_char (di);
2744 if (peek == 'x')
2745 {
2746 t = DEMANGLE_COMPONENT_TRANSACTION_SAFE;
2747 di->expansion += sizeof "transaction_safe";
2748 }
2749 else if (peek == 'o'
2750 || peek == 'O')
2751 {
2752 t = DEMANGLE_COMPONENT_NOEXCEPT;
2753 di->expansion += sizeof "noexcept";
2754 if (peek == 'O')
2755 {
2756 right = d_expression (di);
2757 if (right == NULL)
2758 return NULL;
2759 if (! d_check_char (di, 'E'))
2760 return NULL;
2761 }
2762 }
2763 else if (peek == 'w')
2764 {
2765 t = DEMANGLE_COMPONENT_THROW_SPEC;
2766 di->expansion += sizeof "throw";
2767 right = d_parmlist (di);
2768 if (right == NULL)
2769 return NULL;
2770 if (! d_check_char (di, 'E'))
2771 return NULL;
2772 }
2773 else
2774 return NULL;
6d02e6b2 2775 }
168d63e5 2776
2e9e9363 2777 *pret = d_make_comp (di, t, NULL, right);
1b4974e7 2778 if (*pret == NULL)
2779 return NULL;
2780 pret = &d_left (*pret);
168d63e5 2781
1b4974e7 2782 peek = d_peek_char (di);
2783 }
168d63e5 2784
94dcf771 2785 if (!member_fn && peek == 'F')
2786 {
2787 while (pstart != pret)
2788 {
2789 switch ((*pstart)->type)
2790 {
2791 case DEMANGLE_COMPONENT_RESTRICT:
2792 (*pstart)->type = DEMANGLE_COMPONENT_RESTRICT_THIS;
2793 break;
2794 case DEMANGLE_COMPONENT_VOLATILE:
2795 (*pstart)->type = DEMANGLE_COMPONENT_VOLATILE_THIS;
2796 break;
2797 case DEMANGLE_COMPONENT_CONST:
2798 (*pstart)->type = DEMANGLE_COMPONENT_CONST_THIS;
2799 break;
2800 default:
2801 break;
2802 }
2803 pstart = &d_left (*pstart);
2804 }
2805 }
2806
1b4974e7 2807 return pret;
2808}
168d63e5 2809
1189258f 2810/* <ref-qualifier> ::= R
2811 ::= O */
2812
2813static struct demangle_component *
2814d_ref_qualifier (struct d_info *di, struct demangle_component *sub)
2815{
2816 struct demangle_component *ret = sub;
2817 char peek;
2818
2819 peek = d_peek_char (di);
2820 if (peek == 'R' || peek == 'O')
2821 {
2822 enum demangle_component_type t;
2823 if (peek == 'R')
2824 {
2825 t = DEMANGLE_COMPONENT_REFERENCE_THIS;
2826 di->expansion += sizeof "&";
2827 }
2828 else
2829 {
2830 t = DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS;
2831 di->expansion += sizeof "&&";
2832 }
2833 d_advance (di, 1);
2834
2835 ret = d_make_comp (di, t, ret, NULL);
2836 }
2837
2838 return ret;
2839}
2840
6d02e6b2 2841/* <function-type> ::= F [Y] <bare-function-type> [<ref-qualifier>] [T] E */
168d63e5 2842
f95cb811 2843static struct demangle_component *
d94aaf66 2844d_function_type (struct d_info *di)
168d63e5 2845{
f95cb811 2846 struct demangle_component *ret;
168d63e5 2847
b785de4a 2848 if (! d_check_char (di, 'F'))
1b4974e7 2849 return NULL;
2850 if (d_peek_char (di) == 'Y')
2851 {
2852 /* Function has C linkage. We don't print this information.
2853 FIXME: We should print it in verbose mode. */
2854 d_advance (di, 1);
2855 }
2856 ret = d_bare_function_type (di, 1);
1189258f 2857 ret = d_ref_qualifier (di, ret);
2858
b785de4a 2859 if (! d_check_char (di, 'E'))
1b4974e7 2860 return NULL;
2861 return ret;
2862}
c1b316c0 2863
a8b75081 2864/* <type>+ */
168d63e5 2865
f95cb811 2866static struct demangle_component *
a8b75081 2867d_parmlist (struct d_info *di)
1b4974e7 2868{
f95cb811 2869 struct demangle_component *tl;
2870 struct demangle_component **ptl;
4c8420c9 2871
1b4974e7 2872 tl = NULL;
2873 ptl = &tl;
168d63e5 2874 while (1)
2875 {
f95cb811 2876 struct demangle_component *type;
168d63e5 2877
a8b75081 2878 char peek = d_peek_char (di);
0d80d940 2879 if (peek == '\0' || peek == 'E' || peek == '.')
1b4974e7 2880 break;
1189258f 2881 if ((peek == 'R' || peek == 'O')
2882 && d_peek_next_char (di) == 'E')
2883 /* Function ref-qualifier, not a ref prefix for a parameter type. */
2884 break;
f95cb811 2885 type = cplus_demangle_type (di);
1b4974e7 2886 if (type == NULL)
2887 return NULL;
a8b75081 2888 *ptl = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, type, NULL);
2889 if (*ptl == NULL)
2890 return NULL;
2891 ptl = &d_right (*ptl);
168d63e5 2892 }
168d63e5 2893
1b4974e7 2894 /* There should be at least one parameter type besides the optional
2895 return type. A function which takes no arguments will have a
2896 single parameter type void. */
2897 if (tl == NULL)
2898 return NULL;
168d63e5 2899
1b4974e7 2900 /* If we have a single parameter type void, omit it. */
2901 if (d_right (tl) == NULL
f95cb811 2902 && d_left (tl)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
1b4974e7 2903 && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID)
2c0843db 2904 {
2905 di->expansion -= d_left (tl)->u.s_builtin.type->len;
a8b75081 2906 d_left (tl) = NULL;
2c0843db 2907 }
168d63e5 2908
a8b75081 2909 return tl;
2910}
2911
2912/* <bare-function-type> ::= [J]<type>+ */
2913
2914static struct demangle_component *
2915d_bare_function_type (struct d_info *di, int has_return_type)
2916{
2917 struct demangle_component *return_type;
2918 struct demangle_component *tl;
2919 char peek;
2920
2921 /* Detect special qualifier indicating that the first argument
2922 is the return type. */
2923 peek = d_peek_char (di);
2924 if (peek == 'J')
2925 {
2926 d_advance (di, 1);
2927 has_return_type = 1;
2928 }
2929
2930 if (has_return_type)
2931 {
2932 return_type = cplus_demangle_type (di);
2933 if (return_type == NULL)
2934 return NULL;
2935 }
2936 else
2937 return_type = NULL;
2938
2939 tl = d_parmlist (di);
2940 if (tl == NULL)
2941 return NULL;
2942
2943 return d_make_comp (di, DEMANGLE_COMPONENT_FUNCTION_TYPE,
2944 return_type, tl);
1b4974e7 2945}
168d63e5 2946
1b4974e7 2947/* <class-enum-type> ::= <name> */
168d63e5 2948
f95cb811 2949static struct demangle_component *
d94aaf66 2950d_class_enum_type (struct d_info *di)
1b4974e7 2951{
3dc558bb 2952 return d_name (di);
1b4974e7 2953}
cf70278e 2954
1b4974e7 2955/* <array-type> ::= A <(positive dimension) number> _ <(element) type>
2956 ::= A [<(dimension) expression>] _ <(element) type>
2957*/
cf70278e 2958
f95cb811 2959static struct demangle_component *
d94aaf66 2960d_array_type (struct d_info *di)
1b4974e7 2961{
2962 char peek;
f95cb811 2963 struct demangle_component *dim;
cf70278e 2964
b785de4a 2965 if (! d_check_char (di, 'A'))
1b4974e7 2966 return NULL;
2967
2968 peek = d_peek_char (di);
2969 if (peek == '_')
2970 dim = NULL;
2971 else if (IS_DIGIT (peek))
cf70278e 2972 {
1b4974e7 2973 const char *s;
cf70278e 2974
1b4974e7 2975 s = d_str (di);
2976 do
2977 {
2978 d_advance (di, 1);
2979 peek = d_peek_char (di);
2980 }
2981 while (IS_DIGIT (peek));
2982 dim = d_make_name (di, s, d_str (di) - s);
c1ea6f0c 2983 if (dim == NULL)
2984 return NULL;
cf70278e 2985 }
168d63e5 2986 else
1b4974e7 2987 {
2988 dim = d_expression (di);
2989 if (dim == NULL)
2990 return NULL;
2991 }
168d63e5 2992
b785de4a 2993 if (! d_check_char (di, '_'))
1b4974e7 2994 return NULL;
168d63e5 2995
f95cb811 2996 return d_make_comp (di, DEMANGLE_COMPONENT_ARRAY_TYPE, dim,
2997 cplus_demangle_type (di));
1b4974e7 2998}
168d63e5 2999
29e2e80a 3000/* <vector-type> ::= Dv <number> _ <type>
3001 ::= Dv _ <expression> _ <type> */
3002
3003static struct demangle_component *
3004d_vector_type (struct d_info *di)
3005{
3006 char peek;
3007 struct demangle_component *dim;
3008
3009 peek = d_peek_char (di);
3010 if (peek == '_')
3011 {
3012 d_advance (di, 1);
3013 dim = d_expression (di);
3014 }
3015 else
3016 dim = d_number_component (di);
3017
3018 if (dim == NULL)
3019 return NULL;
3020
3021 if (! d_check_char (di, '_'))
3022 return NULL;
3023
3024 return d_make_comp (di, DEMANGLE_COMPONENT_VECTOR_TYPE, dim,
3025 cplus_demangle_type (di));
3026}
3027
1b4974e7 3028/* <pointer-to-member-type> ::= M <(class) type> <(member) type> */
168d63e5 3029
f95cb811 3030static struct demangle_component *
d94aaf66 3031d_pointer_to_member_type (struct d_info *di)
168d63e5 3032{
f95cb811 3033 struct demangle_component *cl;
3034 struct demangle_component *mem;
168d63e5 3035
b785de4a 3036 if (! d_check_char (di, 'M'))
1b4974e7 3037 return NULL;
168d63e5 3038
f95cb811 3039 cl = cplus_demangle_type (di);
862e5b6d 3040 if (cl == NULL)
a9ff8365 3041 return NULL;
168d63e5 3042
862e5b6d 3043 /* The ABI says, "The type of a non-static member function is considered
3044 to be different, for the purposes of substitution, from the type of a
3045 namespace-scope or static member function whose type appears
3046 similar. The types of two non-static member functions are considered
3047 to be different, for the purposes of substitution, if the functions
3048 are members of different classes. In other words, for the purposes of
3049 substitution, the class of which the function is a member is
3050 considered part of the type of function."
3051
3052 For a pointer to member function, this call to cplus_demangle_type
3053 will end up adding a (possibly qualified) non-member function type to
3054 the substitution table, which is not correct; however, the member
3055 function type will never be used in a substitution, so putting the
3056 wrong type in the substitution table is harmless. */
3057
3058 mem = cplus_demangle_type (di);
3059 if (mem == NULL)
3060 return NULL;
e6c28517 3061
f95cb811 3062 return d_make_comp (di, DEMANGLE_COMPONENT_PTRMEM_TYPE, cl, mem);
168d63e5 3063}
3064
a8b75081 3065/* <non-negative number> _ */
3066
7d235b1b 3067static int
a8b75081 3068d_compact_number (struct d_info *di)
3069{
7d235b1b 3070 int num;
a8b75081 3071 if (d_peek_char (di) == '_')
3072 num = 0;
3073 else if (d_peek_char (di) == 'n')
3074 return -1;
3075 else
3076 num = d_number (di) + 1;
3077
7d235b1b 3078 if (num < 0 || ! d_check_char (di, '_'))
a8b75081 3079 return -1;
3080 return num;
3081}
3082
1b4974e7 3083/* <template-param> ::= T_
3084 ::= T <(parameter-2 non-negative) number> _
3085*/
168d63e5 3086
f95cb811 3087static struct demangle_component *
d94aaf66 3088d_template_param (struct d_info *di)
168d63e5 3089{
7d235b1b 3090 int param;
168d63e5 3091
b785de4a 3092 if (! d_check_char (di, 'T'))
1b4974e7 3093 return NULL;
168d63e5 3094
a8b75081 3095 param = d_compact_number (di);
3096 if (param < 0)
1b4974e7 3097 return NULL;
168d63e5 3098
1b4974e7 3099 return d_make_template_param (di, param);
168d63e5 3100}
3101
1b4974e7 3102/* <template-args> ::= I <template-arg>+ E */
3103
f95cb811 3104static struct demangle_component *
d94aaf66 3105d_template_args (struct d_info *di)
17fdf85c 3106{
3107 if (d_peek_char (di) != 'I'
3108 && d_peek_char (di) != 'J')
3109 return NULL;
3110 d_advance (di, 1);
3111
3112 return d_template_args_1 (di);
3113}
3114
3115/* <template-arg>* E */
3116
3117static struct demangle_component *
3118d_template_args_1 (struct d_info *di)
168d63e5 3119{
f95cb811 3120 struct demangle_component *hold_last_name;
3121 struct demangle_component *al;
3122 struct demangle_component **pal;
168d63e5 3123
1b4974e7 3124 /* Preserve the last name we saw--don't let the template arguments
3125 clobber it, as that would give us the wrong name for a subsequent
3126 constructor or destructor. */
3127 hold_last_name = di->last_name;
168d63e5 3128
4682b6fe 3129 if (d_peek_char (di) == 'E')
3130 {
3131 /* An argument pack can be empty. */
3132 d_advance (di, 1);
3133 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL);
3134 }
3135
1b4974e7 3136 al = NULL;
3137 pal = &al;
168d63e5 3138 while (1)
3139 {
f95cb811 3140 struct demangle_component *a;
1b4974e7 3141
3142 a = d_template_arg (di);
3143 if (a == NULL)
3144 return NULL;
3145
f95cb811 3146 *pal = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, a, NULL);
c1ea6f0c 3147 if (*pal == NULL)
3148 return NULL;
1b4974e7 3149 pal = &d_right (*pal);
3150
3151 if (d_peek_char (di) == 'E')
140d75d7 3152 {
1b4974e7 3153 d_advance (di, 1);
3154 break;
140d75d7 3155 }
168d63e5 3156 }
3157
1b4974e7 3158 di->last_name = hold_last_name;
3159
3160 return al;
168d63e5 3161}
3162
1b4974e7 3163/* <template-arg> ::= <type>
3164 ::= X <expression> E
3165 ::= <expr-primary>
3166*/
168d63e5 3167
f95cb811 3168static struct demangle_component *
d94aaf66 3169d_template_arg (struct d_info *di)
168d63e5 3170{
f95cb811 3171 struct demangle_component *ret;
140d75d7 3172
1b4974e7 3173 switch (d_peek_char (di))
168d63e5 3174 {
1b4974e7 3175 case 'X':
3176 d_advance (di, 1);
3177 ret = d_expression (di);
b785de4a 3178 if (! d_check_char (di, 'E'))
1b4974e7 3179 return NULL;
3180 return ret;
abcf0552 3181
1b4974e7 3182 case 'L':
3183 return d_expr_primary (di);
168d63e5 3184
4682b6fe 3185 case 'I':
2d847c18 3186 case 'J':
4682b6fe 3187 /* An argument pack. */
3188 return d_template_args (di);
3189
1b4974e7 3190 default:
f95cb811 3191 return cplus_demangle_type (di);
40e00cb0 3192 }
168d63e5 3193}
3194
2d847c18 3195/* Parse a sequence of expressions until we hit the terminator
3196 character. */
a2ad5e1b 3197
3198static struct demangle_component *
2d847c18 3199d_exprlist (struct d_info *di, char terminator)
a2ad5e1b 3200{
3201 struct demangle_component *list = NULL;
3202 struct demangle_component **p = &list;
3203
2d847c18 3204 if (d_peek_char (di) == terminator)
4682b6fe 3205 {
3206 d_advance (di, 1);
3207 return d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, NULL, NULL);
3208 }
3209
a2ad5e1b 3210 while (1)
3211 {
3212 struct demangle_component *arg = d_expression (di);
3213 if (arg == NULL)
3214 return NULL;
3215
3216 *p = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, arg, NULL);
3217 if (*p == NULL)
3218 return NULL;
3219 p = &d_right (*p);
3220
2d847c18 3221 if (d_peek_char (di) == terminator)
a2ad5e1b 3222 {
3223 d_advance (di, 1);
3224 break;
3225 }
3226 }
3227
3228 return list;
3229}
3230
6434e009 3231/* Returns nonzero iff OP is an operator for a C++ cast: const_cast,
3232 dynamic_cast, static_cast or reinterpret_cast. */
3233
3234static int
3235op_is_new_cast (struct demangle_component *op)
3236{
3237 const char *code = op->u.s_operator.op->code;
3238 return (code[1] == 'c'
3239 && (code[0] == 's' || code[0] == 'd'
3240 || code[0] == 'c' || code[0] == 'r'));
3241}
3242
1b4974e7 3243/* <expression> ::= <(unary) operator-name> <expression>
3244 ::= <(binary) operator-name> <expression> <expression>
3245 ::= <(trinary) operator-name> <expression> <expression> <expression>
a2ad5e1b 3246 ::= cl <expression>+ E
1b4974e7 3247 ::= st <type>
3248 ::= <template-param>
3249 ::= sr <type> <unqualified-name>
3250 ::= sr <type> <unqualified-name> <template-args>
3251 ::= <expr-primary>
3252*/
3253
f89ffc3b 3254static inline struct demangle_component *
3255d_expression_1 (struct d_info *di)
168d63e5 3256{
1b4974e7 3257 char peek;
168d63e5 3258
1b4974e7 3259 peek = d_peek_char (di);
3260 if (peek == 'L')
3261 return d_expr_primary (di);
3262 else if (peek == 'T')
3263 return d_template_param (di);
3264 else if (peek == 's' && d_peek_next_char (di) == 'r')
168d63e5 3265 {
f95cb811 3266 struct demangle_component *type;
3267 struct demangle_component *name;
168d63e5 3268
1b4974e7 3269 d_advance (di, 2);
f95cb811 3270 type = cplus_demangle_type (di);
1b4974e7 3271 name = d_unqualified_name (di);
3272 if (d_peek_char (di) != 'I')
f95cb811 3273 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type, name);
1b4974e7 3274 else
f95cb811 3275 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type,
3276 d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
1b4974e7 3277 d_template_args (di)));
74c75ba5 3278 }
8173d80a 3279 else if (peek == 's' && d_peek_next_char (di) == 'p')
3280 {
3281 d_advance (di, 2);
3282 return d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
f89ffc3b 3283 d_expression_1 (di), NULL);
8173d80a 3284 }
e92154af 3285 else if (peek == 'f' && d_peek_next_char (di) == 'p')
a2ad5e1b 3286 {
e92154af 3287 /* Function parameter used in a late-specified return type. */
3288 int index;
a2ad5e1b 3289 d_advance (di, 2);
f220ea72 3290 if (d_peek_char (di) == 'T')
3291 {
3292 /* 'this' parameter. */
3293 d_advance (di, 1);
3294 index = 0;
3295 }
3296 else
3297 {
7d235b1b 3298 index = d_compact_number (di);
3299 if (index == INT_MAX || index == -1)
f220ea72 3300 return NULL;
0ae9d219 3301 index++;
f220ea72 3302 }
e92154af 3303 return d_make_function_param (di, index);
a2ad5e1b 3304 }
c44a7393 3305 else if (IS_DIGIT (peek)
3306 || (peek == 'o' && d_peek_next_char (di) == 'n'))
4682b6fe 3307 {
3308 /* We can get an unqualified name as an expression in the case of
c44a7393 3309 a dependent function call, i.e. decltype(f(t)). */
3310 struct demangle_component *name;
3311
3312 if (peek == 'o')
3313 /* operator-function-id, i.e. operator+(t). */
3314 d_advance (di, 2);
3315
3316 name = d_unqualified_name (di);
4682b6fe 3317 if (name == NULL)
3318 return NULL;
3319 if (d_peek_char (di) == 'I')
3320 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
3321 d_template_args (di));
3322 else
3323 return name;
3324 }
2d847c18 3325 else if ((peek == 'i' || peek == 't')
3326 && d_peek_next_char (di) == 'l')
3327 {
3328 /* Brace-enclosed initializer list, untyped or typed. */
3329 struct demangle_component *type = NULL;
3330 if (peek == 't')
3331 type = cplus_demangle_type (di);
9f82fcbc 3332 if (!d_peek_next_char (di))
3333 return NULL;
2d847c18 3334 d_advance (di, 2);
3335 return d_make_comp (di, DEMANGLE_COMPONENT_INITIALIZER_LIST,
3336 type, d_exprlist (di, 'E'));
3337 }
1b4974e7 3338 else
168d63e5 3339 {
f95cb811 3340 struct demangle_component *op;
2d847c18 3341 const char *code = NULL;
1b4974e7 3342 int args;
168d63e5 3343
1b4974e7 3344 op = d_operator_name (di);
3345 if (op == NULL)
3346 return NULL;
168d63e5 3347
f95cb811 3348 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
2d847c18 3349 {
3350 code = op->u.s_operator.op->code;
3351 di->expansion += op->u.s_operator.op->len - 2;
3352 if (strcmp (code, "st") == 0)
3353 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
3354 cplus_demangle_type (di));
3355 }
168d63e5 3356
1b4974e7 3357 switch (op->type)
3358 {
3359 default:
3360 return NULL;
f95cb811 3361 case DEMANGLE_COMPONENT_OPERATOR:
1b4974e7 3362 args = op->u.s_operator.op->args;
3363 break;
f95cb811 3364 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
1b4974e7 3365 args = op->u.s_extended_operator.args;
3366 break;
f95cb811 3367 case DEMANGLE_COMPONENT_CAST:
356f9b5d 3368 args = 1;
1b4974e7 3369 break;
3370 }
3371
3372 switch (args)
3373 {
2d847c18 3374 case 0:
3375 return d_make_comp (di, DEMANGLE_COMPONENT_NULLARY, op, NULL);
3376
1b4974e7 3377 case 1:
e92154af 3378 {
3379 struct demangle_component *operand;
2d847c18 3380 int suffix = 0;
3381
3382 if (code && (code[0] == 'p' || code[0] == 'm')
3383 && code[1] == code[0])
3384 /* pp_ and mm_ are the prefix variants. */
3385 suffix = !d_check_char (di, '_');
3386
e92154af 3387 if (op->type == DEMANGLE_COMPONENT_CAST
3388 && d_check_char (di, '_'))
2d847c18 3389 operand = d_exprlist (di, 'E');
17fdf85c 3390 else if (code && !strcmp (code, "sP"))
3391 operand = d_template_args_1 (di);
e92154af 3392 else
f89ffc3b 3393 operand = d_expression_1 (di);
2d847c18 3394
3395 if (suffix)
3396 /* Indicate the suffix variant for d_print_comp. */
3dc558bb 3397 operand = d_make_comp (di, DEMANGLE_COMPONENT_BINARY_ARGS,
3398 operand, operand);
3399
3400 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op, operand);
e92154af 3401 }
1b4974e7 3402 case 2:
3403 {
f95cb811 3404 struct demangle_component *left;
a2ad5e1b 3405 struct demangle_component *right;
1b4974e7 3406
9f82fcbc 3407 if (code == NULL)
3408 return NULL;
6434e009 3409 if (op_is_new_cast (op))
3410 left = cplus_demangle_type (di);
5bb83f10 3411 else if (code[0] == 'f')
3412 /* fold-expression. */
3413 left = d_operator_name (di);
6434e009 3414 else
f89ffc3b 3415 left = d_expression_1 (di);
c44a7393 3416 if (!strcmp (code, "cl"))
2d847c18 3417 right = d_exprlist (di, 'E');
c44a7393 3418 else if (!strcmp (code, "dt") || !strcmp (code, "pt"))
3419 {
3420 right = d_unqualified_name (di);
3421 if (d_peek_char (di) == 'I')
3422 right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE,
3423 right, d_template_args (di));
3424 }
a2ad5e1b 3425 else
f89ffc3b 3426 right = d_expression_1 (di);
a2ad5e1b 3427
f95cb811 3428 return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op,
3429 d_make_comp (di,
3430 DEMANGLE_COMPONENT_BINARY_ARGS,
a2ad5e1b 3431 left, right));
1b4974e7 3432 }
3433 case 3:
3434 {
f95cb811 3435 struct demangle_component *first;
3436 struct demangle_component *second;
2d847c18 3437 struct demangle_component *third;
1b4974e7 3438
9f82fcbc 3439 if (code == NULL)
3440 return NULL;
3441 else if (!strcmp (code, "qu"))
2d847c18 3442 {
3443 /* ?: expression. */
f89ffc3b 3444 first = d_expression_1 (di);
3445 second = d_expression_1 (di);
3446 third = d_expression_1 (di);
3a7ea919 3447 if (third == NULL)
3448 return NULL;
2d847c18 3449 }
5bb83f10 3450 else if (code[0] == 'f')
3451 {
3452 /* fold-expression. */
3453 first = d_operator_name (di);
3454 second = d_expression_1 (di);
3455 third = d_expression_1 (di);
3a7ea919 3456 if (third == NULL)
3457 return NULL;
5bb83f10 3458 }
2d847c18 3459 else if (code[0] == 'n')
3460 {
3461 /* new-expression. */
3462 if (code[1] != 'w' && code[1] != 'a')
3463 return NULL;
3464 first = d_exprlist (di, '_');
3465 second = cplus_demangle_type (di);
3466 if (d_peek_char (di) == 'E')
3467 {
3468 d_advance (di, 1);
3469 third = NULL;
3470 }
3471 else if (d_peek_char (di) == 'p'
3472 && d_peek_next_char (di) == 'i')
3473 {
3474 /* Parenthesized initializer. */
3475 d_advance (di, 2);
3476 third = d_exprlist (di, 'E');
3477 }
3478 else if (d_peek_char (di) == 'i'
3479 && d_peek_next_char (di) == 'l')
3480 /* initializer-list. */
f89ffc3b 3481 third = d_expression_1 (di);
2d847c18 3482 else
3483 return NULL;
3484 }
3485 else
3486 return NULL;
f95cb811 3487 return d_make_comp (di, DEMANGLE_COMPONENT_TRINARY, op,
3488 d_make_comp (di,
3489 DEMANGLE_COMPONENT_TRINARY_ARG1,
3490 first,
1b4974e7 3491 d_make_comp (di,
f95cb811 3492 DEMANGLE_COMPONENT_TRINARY_ARG2,
2d847c18 3493 second, third)));
1b4974e7 3494 }
3495 default:
3496 return NULL;
3497 }
168d63e5 3498 }
3499}
3500
f89ffc3b 3501static struct demangle_component *
3502d_expression (struct d_info *di)
3503{
3504 struct demangle_component *ret;
3505 int was_expression = di->is_expression;
3506
3507 di->is_expression = 1;
3508 ret = d_expression_1 (di);
3509 di->is_expression = was_expression;
3510 return ret;
3511}
3512
1b4974e7 3513/* <expr-primary> ::= L <type> <(value) number> E
3514 ::= L <type> <(value) float> E
3515 ::= L <mangled-name> E
3516*/
2b6805b4 3517
f95cb811 3518static struct demangle_component *
d94aaf66 3519d_expr_primary (struct d_info *di)
2b6805b4 3520{
f95cb811 3521 struct demangle_component *ret;
2b6805b4 3522
b785de4a 3523 if (! d_check_char (di, 'L'))
1b4974e7 3524 return NULL;
e92154af 3525 if (d_peek_char (di) == '_'
3526 /* Workaround for G++ bug; see comment in write_template_arg. */
3527 || d_peek_char (di) == 'Z')
f95cb811 3528 ret = cplus_demangle_mangled_name (di, 0);
1b4974e7 3529 else
2b6805b4 3530 {
f95cb811 3531 struct demangle_component *type;
3532 enum demangle_component_type t;
1b4974e7 3533 const char *s;
3534
f95cb811 3535 type = cplus_demangle_type (di);
a2e044d6 3536 if (type == NULL)
3537 return NULL;
1b4974e7 3538
2c0843db 3539 /* If we have a type we know how to print, we aren't going to
3540 print the type name itself. */
f95cb811 3541 if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2c0843db 3542 && type->u.s_builtin.type->print != D_PRINT_DEFAULT)
3543 di->expansion -= type->u.s_builtin.type->len;
3544
1b4974e7 3545 /* Rather than try to interpret the literal value, we just
3546 collect it as a string. Note that it's possible to have a
3547 floating point literal here. The ABI specifies that the
3548 format of such literals is machine independent. That's fine,
3549 but what's not fine is that versions of g++ up to 3.2 with
3550 -fabi-version=1 used upper case letters in the hex constant,
3551 and dumped out gcc's internal representation. That makes it
3552 hard to tell where the constant ends, and hard to dump the
3553 constant in any readable form anyhow. We don't attempt to
3554 handle these cases. */
3555
f95cb811 3556 t = DEMANGLE_COMPONENT_LITERAL;
b69d25f7 3557 if (d_peek_char (di) == 'n')
3558 {
f95cb811 3559 t = DEMANGLE_COMPONENT_LITERAL_NEG;
b69d25f7 3560 d_advance (di, 1);
3561 }
1b4974e7 3562 s = d_str (di);
3563 while (d_peek_char (di) != 'E')
d8d90ee3 3564 {
3565 if (d_peek_char (di) == '\0')
3566 return NULL;
3567 d_advance (di, 1);
3568 }
b69d25f7 3569 ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s));
1b4974e7 3570 }
b785de4a 3571 if (! d_check_char (di, 'E'))
1b4974e7 3572 return NULL;
3573 return ret;
2b6805b4 3574}
3575
1b4974e7 3576/* <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>]
3577 ::= Z <(function) encoding> E s [<discriminator>]
dc78d83a 3578 ::= Z <(function) encoding> E d [<parameter> number>] _ <entity name>
1b4974e7 3579*/
2b6805b4 3580
f95cb811 3581static struct demangle_component *
3dc558bb 3582d_local_name (struct d_info *di)
2b6805b4 3583{
f95cb811 3584 struct demangle_component *function;
2a80a8f0 3585 struct demangle_component *name;
2b6805b4 3586
b785de4a 3587 if (! d_check_char (di, 'Z'))
1b4974e7 3588 return NULL;
2b6805b4 3589
55faa696 3590 function = d_encoding (di, 0);
3dc558bb 3591 if (!function)
3592 return NULL;
2b6805b4 3593
b785de4a 3594 if (! d_check_char (di, 'E'))
1b4974e7 3595 return NULL;
2b6805b4 3596
1b4974e7 3597 if (d_peek_char (di) == 's')
2b6805b4 3598 {
1b4974e7 3599 d_advance (di, 1);
3600 if (! d_discriminator (di))
3601 return NULL;
2a80a8f0 3602 name = d_make_name (di, "string literal", sizeof "string literal" - 1);
2b6805b4 3603 }
1b4974e7 3604 else
2b6805b4 3605 {
a8b75081 3606 int num = -1;
3607
3608 if (d_peek_char (di) == 'd')
3609 {
3610 /* Default argument scope: d <number> _. */
3611 d_advance (di, 1);
3612 num = d_compact_number (di);
3613 if (num < 0)
3614 return NULL;
3615 }
2b6805b4 3616
3dc558bb 3617 name = d_name (di);
4e5e8012 3618
2a80a8f0 3619 if (name
4e5e8012 3620 /* Lambdas and unnamed types have internal discriminators
3621 and are not functions. */
2a80a8f0 3622 && name->type != DEMANGLE_COMPONENT_LAMBDA
4e5e8012 3623 && name->type != DEMANGLE_COMPONENT_UNNAMED_TYPE)
3624 {
4e5e8012 3625 /* Read and ignore an optional discriminator. */
3626 if (! d_discriminator (di))
3627 return NULL;
3628 }
2a80a8f0 3629
a8b75081 3630 if (num >= 0)
3631 name = d_make_default_arg (di, num, name);
2b6805b4 3632 }
2a80a8f0 3633
5f480962 3634 /* Elide the return type of the containing function so as to not
3635 confuse the user thinking it is the return type of whatever local
3636 function we might be containing. */
3637 if (function->type == DEMANGLE_COMPONENT_TYPED_NAME
3638 && d_right (function)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
3639 d_left (d_right (function)) = NULL;
3640
2a80a8f0 3641 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
2b6805b4 3642}
3643
a2929a3a 3644/* <discriminator> ::= _ <number> # when number < 10
3645 ::= __ <number> _ # when number >= 10
3646
3647 <discriminator> ::= _ <number> # when number >=10
3648 is also accepted to support gcc versions that wrongly mangled that way.
168d63e5 3649
1b4974e7 3650 We demangle the discriminator, but we don't print it out. FIXME:
3651 We should print it out in verbose mode. */
2b6805b4 3652
1b4974e7 3653static int
d94aaf66 3654d_discriminator (struct d_info *di)
1b4974e7 3655{
a2929a3a 3656 int discrim, num_underscores = 1;
2b6805b4 3657
1b4974e7 3658 if (d_peek_char (di) != '_')
3659 return 1;
3660 d_advance (di, 1);
a2929a3a 3661 if (d_peek_char (di) == '_')
3662 {
3663 ++num_underscores;
3664 d_advance (di, 1);
3665 }
3666
1b4974e7 3667 discrim = d_number (di);
3668 if (discrim < 0)
3669 return 0;
a2929a3a 3670 if (num_underscores > 1 && discrim >= 10)
3671 {
3672 if (d_peek_char (di) == '_')
3673 d_advance (di, 1);
3674 else
3675 return 0;
3676 }
3677
1b4974e7 3678 return 1;
3679}
168d63e5 3680
a8b75081 3681/* <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ */
3682
3683static struct demangle_component *
3684d_lambda (struct d_info *di)
3685{
3686 struct demangle_component *tl;
3687 struct demangle_component *ret;
3688 int num;
3689
3690 if (! d_check_char (di, 'U'))
3691 return NULL;
3692 if (! d_check_char (di, 'l'))
3693 return NULL;
3694
3695 tl = d_parmlist (di);
3696 if (tl == NULL)
3697 return NULL;
3698
3699 if (! d_check_char (di, 'E'))
3700 return NULL;
3701
3702 num = d_compact_number (di);
3703 if (num < 0)
3704 return NULL;
3705
3706 ret = d_make_empty (di);
3707 if (ret)
3708 {
3709 ret->type = DEMANGLE_COMPONENT_LAMBDA;
3710 ret->u.s_unary_num.sub = tl;
3711 ret->u.s_unary_num.num = num;
3712 }
3713
3714 if (! d_add_substitution (di, ret))
3715 return NULL;
3716
3717 return ret;
3718}
3719
3720/* <unnamed-type-name> ::= Ut [ <nonnegative number> ] _ */
3721
3722static struct demangle_component *
3723d_unnamed_type (struct d_info *di)
3724{
3725 struct demangle_component *ret;
7d235b1b 3726 int num;
a8b75081 3727
3728 if (! d_check_char (di, 'U'))
3729 return NULL;
3730 if (! d_check_char (di, 't'))
3731 return NULL;
3732
3733 num = d_compact_number (di);
3734 if (num < 0)
3735 return NULL;
3736
3737 ret = d_make_empty (di);
3738 if (ret)
3739 {
3740 ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE;
3741 ret->u.s_number.number = num;
3742 }
3743
3744 if (! d_add_substitution (di, ret))
3745 return NULL;
3746
3747 return ret;
3748}
3749
0d80d940 3750/* <clone-suffix> ::= [ . <clone-type-identifier> ] [ . <nonnegative number> ]*
3751*/
3752
3753static struct demangle_component *
3754d_clone_suffix (struct d_info *di, struct demangle_component *encoding)
3755{
3756 const char *suffix = d_str (di);
3757 const char *pend = suffix;
3758 struct demangle_component *n;
3759
3760 if (*pend == '.' && (IS_LOWER (pend[1]) || pend[1] == '_'))
3761 {
3762 pend += 2;
3763 while (IS_LOWER (*pend) || *pend == '_')
3764 ++pend;
3765 }
3766 while (*pend == '.' && IS_DIGIT (pend[1]))
3767 {
3768 pend += 2;
3769 while (IS_DIGIT (*pend))
3770 ++pend;
3771 }
3772 d_advance (di, pend - suffix);
3773 n = d_make_name (di, suffix, pend - suffix);
3774 return d_make_comp (di, DEMANGLE_COMPONENT_CLONE, encoding, n);
3775}
3776
1b4974e7 3777/* Add a new substitution. */
168d63e5 3778
1b4974e7 3779static int
d94aaf66 3780d_add_substitution (struct d_info *di, struct demangle_component *dc)
168d63e5 3781{
c1ea6f0c 3782 if (dc == NULL)
3783 return 0;
1b4974e7 3784 if (di->next_sub >= di->num_subs)
3785 return 0;
3786 di->subs[di->next_sub] = dc;
3787 ++di->next_sub;
3788 return 1;
3789}
3790
3791/* <substitution> ::= S <seq-id> _
3792 ::= S_
3793 ::= St
3794 ::= Sa
3795 ::= Sb
3796 ::= Ss
3797 ::= Si
3798 ::= So
3799 ::= Sd
b69d25f7 3800
3801 If PREFIX is non-zero, then this type is being used as a prefix in
3802 a qualified name. In this case, for the standard substitutions, we
3803 need to check whether we are being used as a prefix for a
3804 constructor or destructor, and return a full template name.
3805 Otherwise we will get something like std::iostream::~iostream()
3806 which does not correspond particularly well to any function which
3807 actually appears in the source.
1b4974e7 3808*/
168d63e5 3809
b69d25f7 3810static const struct d_standard_sub_info standard_subs[] =
3811{
2c0843db 3812 { 't', NL ("std"),
3813 NL ("std"),
3814 NULL, 0 },
3815 { 'a', NL ("std::allocator"),
3816 NL ("std::allocator"),
3817 NL ("allocator") },
3818 { 'b', NL ("std::basic_string"),
3819 NL ("std::basic_string"),
3820 NL ("basic_string") },
3821 { 's', NL ("std::string"),
3822 NL ("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
3823 NL ("basic_string") },
3824 { 'i', NL ("std::istream"),
3825 NL ("std::basic_istream<char, std::char_traits<char> >"),
3826 NL ("basic_istream") },
3827 { 'o', NL ("std::ostream"),
3828 NL ("std::basic_ostream<char, std::char_traits<char> >"),
3829 NL ("basic_ostream") },
3830 { 'd', NL ("std::iostream"),
3831 NL ("std::basic_iostream<char, std::char_traits<char> >"),
3832 NL ("basic_iostream") }
b69d25f7 3833};
3834
f95cb811 3835static struct demangle_component *
d94aaf66 3836d_substitution (struct d_info *di, int prefix)
1b4974e7 3837{
3838 char c;
168d63e5 3839
b785de4a 3840 if (! d_check_char (di, 'S'))
1b4974e7 3841 return NULL;
6539a5d8 3842
1b4974e7 3843 c = d_next_char (di);
3c87c5c3 3844 if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
168d63e5 3845 {
a8c4f791 3846 unsigned int id;
168d63e5 3847
1b4974e7 3848 id = 0;
3849 if (c != '_')
168d63e5 3850 {
1b4974e7 3851 do
168d63e5 3852 {
a8c4f791 3853 unsigned int new_id;
3854
1b4974e7 3855 if (IS_DIGIT (c))
a8c4f791 3856 new_id = id * 36 + c - '0';
3c87c5c3 3857 else if (IS_UPPER (c))
a8c4f791 3858 new_id = id * 36 + c - 'A' + 10;
1b4974e7 3859 else
3860 return NULL;
a8c4f791 3861 if (new_id < id)
0b2d8352 3862 return NULL;
a8c4f791 3863 id = new_id;
1b4974e7 3864 c = d_next_char (di);
168d63e5 3865 }
1b4974e7 3866 while (c != '_');
168d63e5 3867
1b4974e7 3868 ++id;
168d63e5 3869 }
168d63e5 3870
a8c4f791 3871 if (id >= (unsigned int) di->next_sub)
1b4974e7 3872 return NULL;
168d63e5 3873
1b4974e7 3874 return di->subs[id];
168d63e5 3875 }
1b4974e7 3876 else
168d63e5 3877 {
b69d25f7 3878 int verbose;
3879 const struct d_standard_sub_info *p;
3880 const struct d_standard_sub_info *pend;
3881
3882 verbose = (di->options & DMGL_VERBOSE) != 0;
3883 if (! verbose && prefix)
3a18c9fc 3884 {
b69d25f7 3885 char peek;
3886
3887 peek = d_peek_char (di);
3888 if (peek == 'C' || peek == 'D')
3889 verbose = 1;
168d63e5 3890 }
b69d25f7 3891
3892 pend = (&standard_subs[0]
3893 + sizeof standard_subs / sizeof standard_subs[0]);
3894 for (p = &standard_subs[0]; p < pend; ++p)
3895 {
3896 if (c == p->code)
3897 {
2c0843db 3898 const char *s;
3899 int len;
6b3f15b8 3900 struct demangle_component *dc;
2c0843db 3901
b69d25f7 3902 if (p->set_last_name != NULL)
2c0843db 3903 di->last_name = d_make_sub (di, p->set_last_name,
3904 p->set_last_name_len);
b69d25f7 3905 if (verbose)
2c0843db 3906 {
3907 s = p->full_expansion;
3908 len = p->full_len;
3909 }
b69d25f7 3910 else
2c0843db 3911 {
3912 s = p->simple_expansion;
3913 len = p->simple_len;
3914 }
3915 di->expansion += len;
6b3f15b8 3916 dc = d_make_sub (di, s, len);
7cd4e87d 3917 if (d_peek_char (di) == 'B')
3918 {
3919 /* If there are ABI tags on the abbreviation, it becomes
3920 a substitution candidate. */
6b3f15b8 3921 dc = d_abi_tags (di, dc);
bd7ba887 3922 if (! d_add_substitution (di, dc))
3923 return NULL;
7cd4e87d 3924 }
6b3f15b8 3925 return dc;
b69d25f7 3926 }
3927 }
3928
3929 return NULL;
168d63e5 3930 }
168d63e5 3931}
3932
f89ffc3b 3933static void
3934d_checkpoint (struct d_info *di, struct d_info_checkpoint *checkpoint)
3935{
3936 checkpoint->n = di->n;
3937 checkpoint->next_comp = di->next_comp;
3938 checkpoint->next_sub = di->next_sub;
f89ffc3b 3939 checkpoint->expansion = di->expansion;
3940}
3941
3942static void
3943d_backtrack (struct d_info *di, struct d_info_checkpoint *checkpoint)
3944{
3945 di->n = checkpoint->n;
3946 di->next_comp = checkpoint->next_comp;
3947 di->next_sub = checkpoint->next_sub;
f89ffc3b 3948 di->expansion = checkpoint->expansion;
3949}
3950
611fc3d0 3951/* Initialize a growable string. */
168d63e5 3952
1b4974e7 3953static void
611fc3d0 3954d_growable_string_init (struct d_growable_string *dgs, size_t estimate)
1b4974e7 3955{
611fc3d0 3956 dgs->buf = NULL;
3957 dgs->len = 0;
3958 dgs->alc = 0;
3959 dgs->allocation_failure = 0;
168d63e5 3960
611fc3d0 3961 if (estimate > 0)
3962 d_growable_string_resize (dgs, estimate);
3963}
3964
3965/* Grow a growable string to a given size. */
3966
3967static inline void
3968d_growable_string_resize (struct d_growable_string *dgs, size_t need)
3969{
3970 size_t newalc;
3971 char *newbuf;
3972
3973 if (dgs->allocation_failure)
c1ea6f0c 3974 return;
f99edf23 3975
611fc3d0 3976 /* Start allocation at two bytes to avoid any possibility of confusion
3977 with the special value of 1 used as a return in *palc to indicate
3978 allocation failures. */
3979 newalc = dgs->alc > 0 ? dgs->alc : 2;
3980 while (newalc < need)
3981 newalc <<= 1;
3982
3983 newbuf = (char *) realloc (dgs->buf, newalc);
3984 if (newbuf == NULL)
3985 {
3986 free (dgs->buf);
3987 dgs->buf = NULL;
3988 dgs->len = 0;
3989 dgs->alc = 0;
3990 dgs->allocation_failure = 1;
3991 return;
40e00cb0 3992 }
611fc3d0 3993 dgs->buf = newbuf;
3994 dgs->alc = newalc;
1b4974e7 3995}
6b45c28d 3996
611fc3d0 3997/* Append a buffer to a growable string. */
6b45c28d 3998
611fc3d0 3999static inline void
4000d_growable_string_append_buffer (struct d_growable_string *dgs,
4001 const char *s, size_t l)
1b4974e7 4002{
611fc3d0 4003 size_t need;
6b45c28d 4004
611fc3d0 4005 need = dgs->len + l + 1;
4006 if (need > dgs->alc)
4007 d_growable_string_resize (dgs, need);
4008
4009 if (dgs->allocation_failure)
4010 return;
4011
4012 memcpy (dgs->buf + dgs->len, s, l);
4013 dgs->buf[dgs->len + l] = '\0';
4014 dgs->len += l;
168d63e5 4015}
4016
611fc3d0 4017/* Bridge growable strings to the callback mechanism. */
1b4974e7 4018
4019static void
611fc3d0 4020d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
168d63e5 4021{
611fc3d0 4022 struct d_growable_string *dgs = (struct d_growable_string*) opaque;
168d63e5 4023
611fc3d0 4024 d_growable_string_append_buffer (dgs, s, l);
168d63e5 4025}
4026
b26b8335 4027/* Walk the tree, counting the number of templates encountered, and
4028 the number of times a scope might be saved. These counts will be
4029 used to allocate data structures for d_print_comp, so the logic
4030 here must mirror the logic d_print_comp will use. It is not
4031 important that the resulting numbers are exact, so long as they
4032 are larger than the actual numbers encountered. */
4033
4034static void
4035d_count_templates_scopes (int *num_templates, int *num_scopes,
4036 const struct demangle_component *dc)
4037{
4038 if (dc == NULL)
4039 return;
4040
4041 switch (dc->type)
4042 {
4043 case DEMANGLE_COMPONENT_NAME:
4044 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
4045 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
4046 case DEMANGLE_COMPONENT_SUB_STD:
4047 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
4048 case DEMANGLE_COMPONENT_OPERATOR:
4049 case DEMANGLE_COMPONENT_CHARACTER:
4050 case DEMANGLE_COMPONENT_NUMBER:
4051 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
4052 break;
4053
4054 case DEMANGLE_COMPONENT_TEMPLATE:
4055 (*num_templates)++;
4056 goto recurse_left_right;
4057
4058 case DEMANGLE_COMPONENT_REFERENCE:
4059 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
4060 if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
4061 (*num_scopes)++;
4062 goto recurse_left_right;
4063
4064 case DEMANGLE_COMPONENT_QUAL_NAME:
4065 case DEMANGLE_COMPONENT_LOCAL_NAME:
4066 case DEMANGLE_COMPONENT_TYPED_NAME:
4067 case DEMANGLE_COMPONENT_VTABLE:
4068 case DEMANGLE_COMPONENT_VTT:
4069 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
4070 case DEMANGLE_COMPONENT_TYPEINFO:
4071 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
4072 case DEMANGLE_COMPONENT_TYPEINFO_FN:
4073 case DEMANGLE_COMPONENT_THUNK:
4074 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
4075 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
4076 case DEMANGLE_COMPONENT_JAVA_CLASS:
4077 case DEMANGLE_COMPONENT_GUARD:
4078 case DEMANGLE_COMPONENT_TLS_INIT:
4079 case DEMANGLE_COMPONENT_TLS_WRAPPER:
4080 case DEMANGLE_COMPONENT_REFTEMP:
4081 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
4082 case DEMANGLE_COMPONENT_RESTRICT:
4083 case DEMANGLE_COMPONENT_VOLATILE:
4084 case DEMANGLE_COMPONENT_CONST:
4085 case DEMANGLE_COMPONENT_RESTRICT_THIS:
4086 case DEMANGLE_COMPONENT_VOLATILE_THIS:
4087 case DEMANGLE_COMPONENT_CONST_THIS:
4088 case DEMANGLE_COMPONENT_REFERENCE_THIS:
4089 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
6d02e6b2 4090 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
2e9e9363 4091 case DEMANGLE_COMPONENT_NOEXCEPT:
4092 case DEMANGLE_COMPONENT_THROW_SPEC:
b26b8335 4093 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
4094 case DEMANGLE_COMPONENT_POINTER:
4095 case DEMANGLE_COMPONENT_COMPLEX:
4096 case DEMANGLE_COMPONENT_IMAGINARY:
4097 case DEMANGLE_COMPONENT_VENDOR_TYPE:
4098 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
4099 case DEMANGLE_COMPONENT_ARRAY_TYPE:
4100 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
b26b8335 4101 case DEMANGLE_COMPONENT_VECTOR_TYPE:
4102 case DEMANGLE_COMPONENT_ARGLIST:
4103 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
4104 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
4105 case DEMANGLE_COMPONENT_CAST:
88845c03 4106 case DEMANGLE_COMPONENT_CONVERSION:
b26b8335 4107 case DEMANGLE_COMPONENT_NULLARY:
4108 case DEMANGLE_COMPONENT_UNARY:
4109 case DEMANGLE_COMPONENT_BINARY:
4110 case DEMANGLE_COMPONENT_BINARY_ARGS:
4111 case DEMANGLE_COMPONENT_TRINARY:
4112 case DEMANGLE_COMPONENT_TRINARY_ARG1:
4113 case DEMANGLE_COMPONENT_TRINARY_ARG2:
4114 case DEMANGLE_COMPONENT_LITERAL:
4115 case DEMANGLE_COMPONENT_LITERAL_NEG:
4116 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
4117 case DEMANGLE_COMPONENT_COMPOUND_NAME:
4118 case DEMANGLE_COMPONENT_DECLTYPE:
4119 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
4120 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
4121 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4122 case DEMANGLE_COMPONENT_TAGGED_NAME:
4123 case DEMANGLE_COMPONENT_CLONE:
4124 recurse_left_right:
4125 d_count_templates_scopes (num_templates, num_scopes,
4126 d_left (dc));
4127 d_count_templates_scopes (num_templates, num_scopes,
4128 d_right (dc));
4129 break;
4130
4131 case DEMANGLE_COMPONENT_CTOR:
4132 d_count_templates_scopes (num_templates, num_scopes,
4133 dc->u.s_ctor.name);
4134 break;
4135
4136 case DEMANGLE_COMPONENT_DTOR:
4137 d_count_templates_scopes (num_templates, num_scopes,
4138 dc->u.s_dtor.name);
4139 break;
4140
4141 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4142 d_count_templates_scopes (num_templates, num_scopes,
4143 dc->u.s_extended_operator.name);
4144 break;
4145
d240d5fd 4146 case DEMANGLE_COMPONENT_FIXED_TYPE:
4147 d_count_templates_scopes (num_templates, num_scopes,
4148 dc->u.s_fixed.length);
4149 break;
4150
b26b8335 4151 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
4152 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
4153 d_count_templates_scopes (num_templates, num_scopes,
4154 d_left (dc));
4155 break;
4156
4157 case DEMANGLE_COMPONENT_LAMBDA:
4158 case DEMANGLE_COMPONENT_DEFAULT_ARG:
4159 d_count_templates_scopes (num_templates, num_scopes,
4160 dc->u.s_unary_num.sub);
4161 break;
4162 }
4163}
4164
611fc3d0 4165/* Initialize a print information structure. */
168d63e5 4166
1b4974e7 4167static void
ce673d9a 4168d_print_init (struct d_print_info *dpi, demangle_callbackref callback,
b26b8335 4169 void *opaque, const struct demangle_component *dc)
611fc3d0 4170{
611fc3d0 4171 dpi->len = 0;
4172 dpi->last_char = '\0';
4173 dpi->templates = NULL;
4174 dpi->modifiers = NULL;
84be2b4d 4175 dpi->pack_index = 0;
f2ba0f87 4176 dpi->flush_count = 0;
611fc3d0 4177
4178 dpi->callback = callback;
4179 dpi->opaque = opaque;
4180
4181 dpi->demangle_failure = 0;
b4cd77b1 4182 dpi->recursion = 0;
b35d5d07 4183 dpi->is_lambda_arg = 0;
a5ec7a66 4184
bb6c1235 4185 dpi->component_stack = NULL;
4186
a5ec7a66 4187 dpi->saved_scopes = NULL;
b26b8335 4188 dpi->next_saved_scope = 0;
a5ec7a66 4189 dpi->num_saved_scopes = 0;
a5ec7a66 4190
b26b8335 4191 dpi->copy_templates = NULL;
4192 dpi->next_copy_template = 0;
4193 dpi->num_copy_templates = 0;
a5ec7a66 4194
b26b8335 4195 d_count_templates_scopes (&dpi->num_copy_templates,
4196 &dpi->num_saved_scopes, dc);
4197 dpi->num_copy_templates *= dpi->num_saved_scopes;
a5ec7a66 4198
b26b8335 4199 dpi->current_template = NULL;
611fc3d0 4200}
4201
4202/* Indicate that an error occurred during printing, and test for error. */
4203
4204static inline void
d94aaf66 4205d_print_error (struct d_print_info *dpi)
1c1033dd 4206{
611fc3d0 4207 dpi->demangle_failure = 1;
4208}
4209
4210static inline int
4211d_print_saw_error (struct d_print_info *dpi)
4212{
4213 return dpi->demangle_failure != 0;
4214}
4215
4216/* Flush buffered characters to the callback. */
4217
4218static inline void
4219d_print_flush (struct d_print_info *dpi)
4220{
4221 dpi->buf[dpi->len] = '\0';
4222 dpi->callback (dpi->buf, dpi->len, dpi->opaque);
4223 dpi->len = 0;
f2ba0f87 4224 dpi->flush_count++;
611fc3d0 4225}
4226
4227/* Append characters and buffers for printing. */
4228
4229static inline void
4230d_append_char (struct d_print_info *dpi, char c)
4231{
4232 if (dpi->len == sizeof (dpi->buf) - 1)
4233 d_print_flush (dpi);
4234
4235 dpi->buf[dpi->len++] = c;
4236 dpi->last_char = c;
4237}
4238
4239static inline void
4240d_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
4241{
4242 size_t i;
4243
4244 for (i = 0; i < l; i++)
4245 d_append_char (dpi, s[i]);
4246}
4247
4248static inline void
4249d_append_string (struct d_print_info *dpi, const char *s)
4250{
4251 d_append_buffer (dpi, s, strlen (s));
4252}
4253
a8b75081 4254static inline void
7d235b1b 4255d_append_num (struct d_print_info *dpi, int l)
a8b75081 4256{
4257 char buf[25];
7d235b1b 4258 sprintf (buf,"%d", l);
a8b75081 4259 d_append_string (dpi, buf);
4260}
4261
611fc3d0 4262static inline char
4263d_last_char (struct d_print_info *dpi)
4264{
4265 return dpi->last_char;
4266}
4267
4268/* Turn components into a human readable string. OPTIONS is the
4269 options bits passed to the demangler. DC is the tree to print.
4270 CALLBACK is a function to call to flush demangled string segments
4271 as they fill the intermediate buffer, and OPAQUE is a generalized
4272 callback argument. On success, this returns 1. On failure,
4273 it returns 0, indicating a bad parse. It does not use heap
4274 memory to build an output string, so cannot encounter memory
4275 allocation failure. */
4276
4277CP_STATIC_IF_GLIBCPP_V3
4278int
4279cplus_demangle_print_callback (int options,
a664c62c 4280 struct demangle_component *dc,
611fc3d0 4281 demangle_callbackref callback, void *opaque)
4282{
4283 struct d_print_info dpi;
4284
b26b8335 4285 d_print_init (&dpi, callback, opaque, dc);
611fc3d0 4286
b26b8335 4287 {
4288#ifdef CP_DYNAMIC_ARRAYS
16c4a63b 4289 /* Avoid zero-length VLAs, which are prohibited by the C99 standard
4290 and flagged as errors by Address Sanitizer. */
4291 __extension__ struct d_saved_scope scopes[(dpi.num_saved_scopes > 0)
4292 ? dpi.num_saved_scopes : 1];
4293 __extension__ struct d_print_template temps[(dpi.num_copy_templates > 0)
4294 ? dpi.num_copy_templates : 1];
b26b8335 4295
4296 dpi.saved_scopes = scopes;
4297 dpi.copy_templates = temps;
4298#else
4299 dpi.saved_scopes = alloca (dpi.num_saved_scopes
4300 * sizeof (*dpi.saved_scopes));
4301 dpi.copy_templates = alloca (dpi.num_copy_templates
4302 * sizeof (*dpi.copy_templates));
4303#endif
4304
4305 d_print_comp (&dpi, options, dc);
4306 }
611fc3d0 4307
4308 d_print_flush (&dpi);
4309
b26b8335 4310 return ! d_print_saw_error (&dpi);
1b4974e7 4311}
1c1033dd 4312
2c0843db 4313/* Turn components into a human readable string. OPTIONS is the
4314 options bits passed to the demangler. DC is the tree to print.
4315 ESTIMATE is a guess at the length of the result. This returns a
4316 string allocated by malloc, or NULL on error. On success, this
4317 sets *PALC to the size of the allocated buffer. On failure, this
4318 sets *PALC to 0 for a bad parse, or to 1 for a memory allocation
4319 failure. */
168d63e5 4320
f95cb811 4321CP_STATIC_IF_GLIBCPP_V3
4322char *
a664c62c 4323cplus_demangle_print (int options, struct demangle_component *dc,
d94aaf66 4324 int estimate, size_t *palc)
1b4974e7 4325{
611fc3d0 4326 struct d_growable_string dgs;
168d63e5 4327
611fc3d0 4328 d_growable_string_init (&dgs, estimate);
168d63e5 4329
611fc3d0 4330 if (! cplus_demangle_print_callback (options, dc,
4331 d_growable_string_callback_adapter,
4332 &dgs))
168d63e5 4333 {
611fc3d0 4334 free (dgs.buf);
4335 *palc = 0;
1b4974e7 4336 return NULL;
168d63e5 4337 }
168d63e5 4338
611fc3d0 4339 *palc = dgs.allocation_failure ? 1 : dgs.alc;
4340 return dgs.buf;
168d63e5 4341}
4342
4682b6fe 4343/* Returns the I'th element of the template arglist ARGS, or NULL on
5bb83f10 4344 failure. If I is negative, return the entire arglist. */
4682b6fe 4345
4346static struct demangle_component *
4347d_index_template_argument (struct demangle_component *args, int i)
4348{
4349 struct demangle_component *a;
4350
5bb83f10 4351 if (i < 0)
4352 /* Print the whole argument pack. */
4353 return args;
4354
4682b6fe 4355 for (a = args;
4356 a != NULL;
4357 a = d_right (a))
4358 {
4359 if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4360 return NULL;
4361 if (i <= 0)
4362 break;
4363 --i;
4364 }
4365 if (i != 0 || a == NULL)
4366 return NULL;
4367
4368 return d_left (a);
4369}
4370
4371/* Returns the template argument from the current context indicated by DC,
4372 which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */
4373
4374static struct demangle_component *
4375d_lookup_template_argument (struct d_print_info *dpi,
4376 const struct demangle_component *dc)
4377{
4378 if (dpi->templates == NULL)
4379 {
4380 d_print_error (dpi);
4381 return NULL;
4382 }
4383
4384 return d_index_template_argument
4385 (d_right (dpi->templates->template_decl),
4386 dc->u.s_number.number);
4387}
4388
4389/* Returns a template argument pack used in DC (any will do), or NULL. */
4390
4391static struct demangle_component *
4392d_find_pack (struct d_print_info *dpi,
4393 const struct demangle_component *dc)
4394{
4395 struct demangle_component *a;
4396 if (dc == NULL)
4397 return NULL;
4398
4399 switch (dc->type)
4400 {
4401 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
4402 a = d_lookup_template_argument (dpi, dc);
4403 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4404 return a;
4405 return NULL;
4406
4407 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4408 return NULL;
4409
3058a4ce 4410 case DEMANGLE_COMPONENT_LAMBDA:
4682b6fe 4411 case DEMANGLE_COMPONENT_NAME:
d4701f6c 4412 case DEMANGLE_COMPONENT_TAGGED_NAME:
4682b6fe 4413 case DEMANGLE_COMPONENT_OPERATOR:
4414 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
4415 case DEMANGLE_COMPONENT_SUB_STD:
4416 case DEMANGLE_COMPONENT_CHARACTER:
8173d80a 4417 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
6fc68d02 4418 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
9f82fcbc 4419 case DEMANGLE_COMPONENT_FIXED_TYPE:
4420 case DEMANGLE_COMPONENT_DEFAULT_ARG:
4421 case DEMANGLE_COMPONENT_NUMBER:
4682b6fe 4422 return NULL;
4423
4424 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4425 return d_find_pack (dpi, dc->u.s_extended_operator.name);
4426 case DEMANGLE_COMPONENT_CTOR:
4427 return d_find_pack (dpi, dc->u.s_ctor.name);
4428 case DEMANGLE_COMPONENT_DTOR:
4429 return d_find_pack (dpi, dc->u.s_dtor.name);
4430
4431 default:
4432 a = d_find_pack (dpi, d_left (dc));
4433 if (a)
4434 return a;
4435 return d_find_pack (dpi, d_right (dc));
4436 }
4437}
4438
4439/* Returns the length of the template argument pack DC. */
4440
4441static int
4442d_pack_length (const struct demangle_component *dc)
4443{
4444 int count = 0;
4445 while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST
4446 && d_left (dc) != NULL)
4447 {
4448 ++count;
4449 dc = d_right (dc);
4450 }
4451 return count;
4452}
4453
17fdf85c 4454/* Returns the number of template args in DC, expanding any pack expansions
4455 found there. */
4456
4457static int
4458d_args_length (struct d_print_info *dpi, const struct demangle_component *dc)
4459{
4460 int count = 0;
4461 for (; dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST;
4462 dc = d_right (dc))
4463 {
4464 struct demangle_component *elt = d_left (dc);
4465 if (elt == NULL)
4466 break;
4467 if (elt->type == DEMANGLE_COMPONENT_PACK_EXPANSION)
4468 {
4469 struct demangle_component *a = d_find_pack (dpi, d_left (elt));
4470 count += d_pack_length (a);
4471 }
4472 else
4473 ++count;
4474 }
4475 return count;
4476}
4477
4682b6fe 4478/* DC is a component of a mangled expression. Print it, wrapped in parens
4479 if needed. */
4480
4481static void
ce673d9a 4482d_print_subexpr (struct d_print_info *dpi, int options,
a664c62c 4483 struct demangle_component *dc)
4682b6fe 4484{
4485 int simple = 0;
8173d80a 4486 if (dc->type == DEMANGLE_COMPONENT_NAME
2d847c18 4487 || dc->type == DEMANGLE_COMPONENT_QUAL_NAME
4488 || dc->type == DEMANGLE_COMPONENT_INITIALIZER_LIST
8173d80a 4489 || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM)
4682b6fe 4490 simple = 1;
4491 if (!simple)
4492 d_append_char (dpi, '(');
ce673d9a 4493 d_print_comp (dpi, options, dc);
4682b6fe 4494 if (!simple)
4495 d_append_char (dpi, ')');
4496}
4497
b26b8335 4498/* Save the current scope. */
a5ec7a66 4499
b26b8335 4500static void
4501d_save_scope (struct d_print_info *dpi,
4502 const struct demangle_component *container)
a5ec7a66 4503{
b26b8335 4504 struct d_saved_scope *scope;
4505 struct d_print_template *src, **link;
4506
4507 if (dpi->next_saved_scope >= dpi->num_saved_scopes)
4508 {
4509 d_print_error (dpi);
4510 return;
4511 }
4512 scope = &dpi->saved_scopes[dpi->next_saved_scope];
4513 dpi->next_saved_scope++;
4514
4515 scope->container = container;
4516 link = &scope->templates;
a5ec7a66 4517
4518 for (src = dpi->templates; src != NULL; src = src->next)
4519 {
b26b8335 4520 struct d_print_template *dst;
a5ec7a66 4521
b26b8335 4522 if (dpi->next_copy_template >= dpi->num_copy_templates)
a5ec7a66 4523 {
4524 d_print_error (dpi);
b26b8335 4525 return;
a5ec7a66 4526 }
b26b8335 4527 dst = &dpi->copy_templates[dpi->next_copy_template];
4528 dpi->next_copy_template++;
a5ec7a66 4529
4530 dst->template_decl = src->template_decl;
4531 *link = dst;
4532 link = &dst->next;
4533 }
4534
4535 *link = NULL;
b26b8335 4536}
4537
4538/* Attempt to locate a previously saved scope. Returns NULL if no
4539 corresponding saved scope was found. */
4540
4541static struct d_saved_scope *
4542d_get_saved_scope (struct d_print_info *dpi,
4543 const struct demangle_component *container)
4544{
4545 int i;
4546
4547 for (i = 0; i < dpi->next_saved_scope; i++)
4548 if (dpi->saved_scopes[i].container == container)
4549 return &dpi->saved_scopes[i];
a5ec7a66 4550
b26b8335 4551 return NULL;
a5ec7a66 4552}
4553
5bb83f10 4554/* If DC is a C++17 fold-expression, print it and return true; otherwise
4555 return false. */
4556
4557static int
4558d_maybe_print_fold_expression (struct d_print_info *dpi, int options,
a664c62c 4559 struct demangle_component *dc)
5bb83f10 4560{
a664c62c 4561 struct demangle_component *ops, *operator_, *op1, *op2;
5bb83f10 4562 int save_idx;
4563
4564 const char *fold_code = d_left (dc)->u.s_operator.op->code;
4565 if (fold_code[0] != 'f')
4566 return 0;
4567
4568 ops = d_right (dc);
4569 operator_ = d_left (ops);
4570 op1 = d_right (ops);
4571 op2 = 0;
4572 if (op1->type == DEMANGLE_COMPONENT_TRINARY_ARG2)
4573 {
4574 op2 = d_right (op1);
4575 op1 = d_left (op1);
4576 }
4577
4578 /* Print the whole pack. */
4579 save_idx = dpi->pack_index;
4580 dpi->pack_index = -1;
4581
4582 switch (fold_code[1])
4583 {
4584 /* Unary left fold, (... + X). */
4585 case 'l':
4586 d_append_string (dpi, "(...");
4587 d_print_expr_op (dpi, options, operator_);
4588 d_print_subexpr (dpi, options, op1);
4589 d_append_char (dpi, ')');
4590 break;
4591
4592 /* Unary right fold, (X + ...). */
4593 case 'r':
4594 d_append_char (dpi, '(');
4595 d_print_subexpr (dpi, options, op1);
4596 d_print_expr_op (dpi, options, operator_);
4597 d_append_string (dpi, "...)");
4598 break;
4599
4600 /* Binary left fold, (42 + ... + X). */
4601 case 'L':
4602 /* Binary right fold, (X + ... + 42). */
4603 case 'R':
4604 d_append_char (dpi, '(');
4605 d_print_subexpr (dpi, options, op1);
4606 d_print_expr_op (dpi, options, operator_);
4607 d_append_string (dpi, "...");
4608 d_print_expr_op (dpi, options, operator_);
4609 d_print_subexpr (dpi, options, op2);
4610 d_append_char (dpi, ')');
4611 break;
4612 }
4613
4614 dpi->pack_index = save_idx;
4615 return 1;
4616}
4617
1b4974e7 4618/* Subroutine to handle components. */
168d63e5 4619
1b4974e7 4620static void
bb6c1235 4621d_print_comp_inner (struct d_print_info *dpi, int options,
a664c62c 4622 struct demangle_component *dc)
168d63e5 4623{
bad78770 4624 /* Magic variable to let reference smashing skip over the next modifier
4625 without needing to modify *dc. */
a664c62c 4626 struct demangle_component *mod_inner = NULL;
bad78770 4627
a5ec7a66 4628 /* Variable used to store the current templates while a previously
4629 captured scope is used. */
4630 struct d_print_template *saved_templates;
4631
4632 /* Nonzero if templates have been stored in the above variable. */
4633 int need_template_restore = 0;
4634
1b4974e7 4635 if (dc == NULL)
168d63e5 4636 {
1b4974e7 4637 d_print_error (dpi);
4638 return;
168d63e5 4639 }
1b4974e7 4640 if (d_print_saw_error (dpi))
4641 return;
168d63e5 4642
1b4974e7 4643 switch (dc->type)
168d63e5 4644 {
f95cb811 4645 case DEMANGLE_COMPONENT_NAME:
ce673d9a 4646 if ((options & DMGL_JAVA) == 0)
2c0843db 4647 d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len);
4648 else
4649 d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len);
1b4974e7 4650 return;
168d63e5 4651
d4701f6c 4652 case DEMANGLE_COMPONENT_TAGGED_NAME:
4653 d_print_comp (dpi, options, d_left (dc));
4654 d_append_string (dpi, "[abi:");
4655 d_print_comp (dpi, options, d_right (dc));
4656 d_append_char (dpi, ']');
4657 return;
4658
f95cb811 4659 case DEMANGLE_COMPONENT_QUAL_NAME:
4660 case DEMANGLE_COMPONENT_LOCAL_NAME:
ce673d9a 4661 d_print_comp (dpi, options, d_left (dc));
4662 if ((options & DMGL_JAVA) == 0)
611fc3d0 4663 d_append_string (dpi, "::");
2c0843db 4664 else
4665 d_append_char (dpi, '.');
dc78d83a 4666 {
4667 struct demangle_component *local_name = d_right (dc);
4668 if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4669 {
4670 d_append_string (dpi, "{default arg#");
4671 d_append_num (dpi, local_name->u.s_unary_num.num + 1);
4672 d_append_string (dpi, "}::");
4673 local_name = local_name->u.s_unary_num.sub;
4674 }
4675 d_print_comp (dpi, options, local_name);
4676 }
1b4974e7 4677 return;
168d63e5 4678
f95cb811 4679 case DEMANGLE_COMPONENT_TYPED_NAME:
1b4974e7 4680 {
3c87c5c3 4681 struct d_print_mod *hold_modifiers;
f95cb811 4682 struct demangle_component *typed_name;
3c87c5c3 4683 struct d_print_mod adpm[4];
4684 unsigned int i;
1b4974e7 4685 struct d_print_template dpt;
4686
4687 /* Pass the name down to the type so that it can be printed in
3c87c5c3 4688 the right place for the type. We also have to pass down
4689 any CV-qualifiers, which apply to the this parameter. */
4690 hold_modifiers = dpi->modifiers;
e92154af 4691 dpi->modifiers = 0;
3c87c5c3 4692 i = 0;
1b4974e7 4693 typed_name = d_left (dc);
3c87c5c3 4694 while (typed_name != NULL)
4695 {
4696 if (i >= sizeof adpm / sizeof adpm[0])
4697 {
4698 d_print_error (dpi);
4699 return;
4700 }
1b4974e7 4701
3c87c5c3 4702 adpm[i].next = dpi->modifiers;
4703 dpi->modifiers = &adpm[i];
4704 adpm[i].mod = typed_name;
4705 adpm[i].printed = 0;
4706 adpm[i].templates = dpi->templates;
4707 ++i;
4708
2e9e9363 4709 if (!is_fnqual_component_type (typed_name->type))
3c87c5c3 4710 break;
4711
4712 typed_name = d_left (typed_name);
4713 }
1b4974e7 4714
9ec61790 4715 if (typed_name == NULL)
4716 {
4717 d_print_error (dpi);
4718 return;
4719 }
4720
f95cb811 4721 /* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then
4722 there may be CV-qualifiers on its right argument which
3dc558bb 4723 really apply here; this happens when parsing a class that
f95cb811 4724 is local to a function. */
4725 if (typed_name->type == DEMANGLE_COMPONENT_LOCAL_NAME)
77097adf 4726 {
3dc558bb 4727 typed_name = d_right (typed_name);
4728 if (typed_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4729 typed_name = typed_name->u.s_unary_num.sub;
4730 if (typed_name == NULL)
9f82fcbc 4731 {
4732 d_print_error (dpi);
4733 return;
4734 }
3dc558bb 4735 while (is_fnqual_component_type (typed_name->type))
77097adf 4736 {
4737 if (i >= sizeof adpm / sizeof adpm[0])
4738 {
4739 d_print_error (dpi);
4740 return;
4741 }
4742
4743 adpm[i] = adpm[i - 1];
4744 adpm[i].next = &adpm[i - 1];
4745 dpi->modifiers = &adpm[i];
4746
3dc558bb 4747 adpm[i - 1].mod = typed_name;
77097adf 4748 adpm[i - 1].printed = 0;
4749 adpm[i - 1].templates = dpi->templates;
4750 ++i;
4751
3dc558bb 4752 typed_name = d_left (typed_name);
77097adf 4753 }
4754 }
4755
3dc558bb 4756 /* If typed_name is a template, then it applies to the
4757 function type as well. */
4758 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
4759 {
4760 dpt.next = dpi->templates;
4761 dpi->templates = &dpt;
4762 dpt.template_decl = typed_name;
4763 }
4764
ce673d9a 4765 d_print_comp (dpi, options, d_right (dc));
cf70278e 4766
f95cb811 4767 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
1b4974e7 4768 dpi->templates = dpt.next;
168d63e5 4769
3c87c5c3 4770 /* If the modifiers didn't get printed by the type, print them
1b4974e7 4771 now. */
3c87c5c3 4772 while (i > 0)
1b4974e7 4773 {
3c87c5c3 4774 --i;
4775 if (! adpm[i].printed)
4776 {
4777 d_append_char (dpi, ' ');
ce673d9a 4778 d_print_mod (dpi, options, adpm[i].mod);
3c87c5c3 4779 }
1b4974e7 4780 }
168d63e5 4781
3c87c5c3 4782 dpi->modifiers = hold_modifiers;
168d63e5 4783
1b4974e7 4784 return;
4785 }
168d63e5 4786
f95cb811 4787 case DEMANGLE_COMPONENT_TEMPLATE:
c1ea6f0c 4788 {
4789 struct d_print_mod *hold_dpm;
611fc3d0 4790 struct demangle_component *dcl;
f89ffc3b 4791 const struct demangle_component *hold_current;
4792
4793 /* This template may need to be referenced by a cast operator
4794 contained in its subtree. */
4795 hold_current = dpi->current_template;
4796 dpi->current_template = dc;
c1ea6f0c 4797
4798 /* Don't push modifiers into a template definition. Doing so
4799 could give the wrong definition for a template argument.
4800 Instead, treat the template essentially as a name. */
4801
4802 hold_dpm = dpi->modifiers;
4803 dpi->modifiers = NULL;
4804
611fc3d0 4805 dcl = d_left (dc);
4806
ce673d9a 4807 if ((options & DMGL_JAVA) != 0
611fc3d0 4808 && dcl->type == DEMANGLE_COMPONENT_NAME
4809 && dcl->u.s_name.len == 6
4810 && strncmp (dcl->u.s_name.s, "JArray", 6) == 0)
4811 {
4812 /* Special-case Java arrays, so that JArray<TYPE> appears
4813 instead as TYPE[]. */
4814
ce673d9a 4815 d_print_comp (dpi, options, d_right (dc));
611fc3d0 4816 d_append_string (dpi, "[]");
4817 }
4818 else
4819 {
ce673d9a 4820 d_print_comp (dpi, options, dcl);
611fc3d0 4821 if (d_last_char (dpi) == '<')
4822 d_append_char (dpi, ' ');
4823 d_append_char (dpi, '<');
ce673d9a 4824 d_print_comp (dpi, options, d_right (dc));
611fc3d0 4825 /* Avoid generating two consecutive '>' characters, to avoid
4826 the C++ syntactic ambiguity. */
4827 if (d_last_char (dpi) == '>')
4828 d_append_char (dpi, ' ');
4829 d_append_char (dpi, '>');
4830 }
c1ea6f0c 4831
4832 dpi->modifiers = hold_dpm;
f89ffc3b 4833 dpi->current_template = hold_current;
c1ea6f0c 4834
4835 return;
4836 }
1b4974e7 4837
f95cb811 4838 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
b35d5d07 4839 if (dpi->is_lambda_arg)
4840 {
4841 /* Show the template parm index, as that's how g++ displays
4842 these, and future proofs us against potential
4843 '[]<typename T> (T *a, T *b) {...}'. */
4844 d_append_buffer (dpi, "auto:", 5);
4845 d_append_num (dpi, dc->u.s_number.number + 1);
4846 }
4847 else
4848 {
4849 struct d_print_template *hold_dpt;
4850 struct demangle_component *a = d_lookup_template_argument (dpi, dc);
4682b6fe 4851
b35d5d07 4852 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4853 a = d_index_template_argument (a, dpi->pack_index);
f99edf23 4854
b35d5d07 4855 if (a == NULL)
4856 {
4857 d_print_error (dpi);
4858 return;
4859 }
f99edf23 4860
b35d5d07 4861 /* While processing this parameter, we need to pop the list
4862 of templates. This is because the template parameter may
4863 itself be a reference to a parameter of an outer
4864 template. */
168d63e5 4865
b35d5d07 4866 hold_dpt = dpi->templates;
4867 dpi->templates = hold_dpt->next;
140d75d7 4868
b35d5d07 4869 d_print_comp (dpi, options, a);
f99edf23 4870
b35d5d07 4871 dpi->templates = hold_dpt;
4872 }
4873 return;
168d63e5 4874
f95cb811 4875 case DEMANGLE_COMPONENT_CTOR:
ce673d9a 4876 d_print_comp (dpi, options, dc->u.s_ctor.name);
1b4974e7 4877 return;
4878
f95cb811 4879 case DEMANGLE_COMPONENT_DTOR:
1b4974e7 4880 d_append_char (dpi, '~');
ce673d9a 4881 d_print_comp (dpi, options, dc->u.s_dtor.name);
1b4974e7 4882 return;
4883
f95cb811 4884 case DEMANGLE_COMPONENT_VTABLE:
611fc3d0 4885 d_append_string (dpi, "vtable for ");
ce673d9a 4886 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4887 return;
4888
f95cb811 4889 case DEMANGLE_COMPONENT_VTT:
611fc3d0 4890 d_append_string (dpi, "VTT for ");
ce673d9a 4891 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4892 return;
4893
f95cb811 4894 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
611fc3d0 4895 d_append_string (dpi, "construction vtable for ");
ce673d9a 4896 d_print_comp (dpi, options, d_left (dc));
611fc3d0 4897 d_append_string (dpi, "-in-");
ce673d9a 4898 d_print_comp (dpi, options, d_right (dc));
1b4974e7 4899 return;
4900
f95cb811 4901 case DEMANGLE_COMPONENT_TYPEINFO:
611fc3d0 4902 d_append_string (dpi, "typeinfo for ");
ce673d9a 4903 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4904 return;
4905
f95cb811 4906 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
611fc3d0 4907 d_append_string (dpi, "typeinfo name for ");
ce673d9a 4908 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4909 return;
4910
f95cb811 4911 case DEMANGLE_COMPONENT_TYPEINFO_FN:
611fc3d0 4912 d_append_string (dpi, "typeinfo fn for ");
ce673d9a 4913 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4914 return;
4915
f95cb811 4916 case DEMANGLE_COMPONENT_THUNK:
611fc3d0 4917 d_append_string (dpi, "non-virtual thunk to ");
ce673d9a 4918 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4919 return;
4920
f95cb811 4921 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
611fc3d0 4922 d_append_string (dpi, "virtual thunk to ");
ce673d9a 4923 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4924 return;
4925
f95cb811 4926 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
611fc3d0 4927 d_append_string (dpi, "covariant return thunk to ");
ce673d9a 4928 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4929 return;
4930
f95cb811 4931 case DEMANGLE_COMPONENT_JAVA_CLASS:
611fc3d0 4932 d_append_string (dpi, "java Class for ");
ce673d9a 4933 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4934 return;
4935
f95cb811 4936 case DEMANGLE_COMPONENT_GUARD:
611fc3d0 4937 d_append_string (dpi, "guard variable for ");
ce673d9a 4938 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4939 return;
4940
462819c8 4941 case DEMANGLE_COMPONENT_TLS_INIT:
4942 d_append_string (dpi, "TLS init function for ");
4943 d_print_comp (dpi, options, d_left (dc));
4944 return;
4945
4946 case DEMANGLE_COMPONENT_TLS_WRAPPER:
4947 d_append_string (dpi, "TLS wrapper function for ");
4948 d_print_comp (dpi, options, d_left (dc));
4949 return;
4950
f95cb811 4951 case DEMANGLE_COMPONENT_REFTEMP:
c7b89256 4952 d_append_string (dpi, "reference temporary #");
4953 d_print_comp (dpi, options, d_right (dc));
4954 d_append_string (dpi, " for ");
ce673d9a 4955 d_print_comp (dpi, options, d_left (dc));
1b4974e7 4956 return;
4957
e63e3841 4958 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
611fc3d0 4959 d_append_string (dpi, "hidden alias for ");
ce673d9a 4960 d_print_comp (dpi, options, d_left (dc));
e63e3841 4961 return;
4962
4c0315d0 4963 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
4964 d_append_string (dpi, "transaction clone for ");
4965 d_print_comp (dpi, options, d_left (dc));
4966 return;
4967
4968 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
4969 d_append_string (dpi, "non-transaction clone for ");
4970 d_print_comp (dpi, options, d_left (dc));
4971 return;
4972
f95cb811 4973 case DEMANGLE_COMPONENT_SUB_STD:
2c0843db 4974 d_append_buffer (dpi, dc->u.s_string.string, dc->u.s_string.len);
1b4974e7 4975 return;
4976
f95cb811 4977 case DEMANGLE_COMPONENT_RESTRICT:
4978 case DEMANGLE_COMPONENT_VOLATILE:
4979 case DEMANGLE_COMPONENT_CONST:
6ff4434d 4980 {
4981 struct d_print_mod *pdpm;
4982
4983 /* When printing arrays, it's possible to have cases where the
4984 same CV-qualifier gets pushed on the stack multiple times.
4985 We only need to print it once. */
4986
4987 for (pdpm = dpi->modifiers; pdpm != NULL; pdpm = pdpm->next)
4988 {
4989 if (! pdpm->printed)
4990 {
4991 if (pdpm->mod->type != DEMANGLE_COMPONENT_RESTRICT
4992 && pdpm->mod->type != DEMANGLE_COMPONENT_VOLATILE
4993 && pdpm->mod->type != DEMANGLE_COMPONENT_CONST)
4994 break;
4995 if (pdpm->mod->type == dc->type)
4996 {
ce673d9a 4997 d_print_comp (dpi, options, d_left (dc));
6ff4434d 4998 return;
4999 }
5000 }
5001 }
5002 }
bad78770 5003 goto modifier;
5004
5005 case DEMANGLE_COMPONENT_REFERENCE:
5006 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5007 {
5008 /* Handle reference smashing: & + && = &. */
a664c62c 5009 struct demangle_component *sub = d_left (dc);
b35d5d07 5010 if (!dpi->is_lambda_arg
5011 && sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
bad78770 5012 {
b26b8335 5013 struct d_saved_scope *scope = d_get_saved_scope (dpi, sub);
a5ec7a66 5014 struct demangle_component *a;
a5ec7a66 5015
5016 if (scope == NULL)
5017 {
5018 /* This is the first time SUB has been traversed.
5019 We need to capture the current templates so
5020 they can be restored if SUB is reentered as a
5021 substitution. */
b26b8335 5022 d_save_scope (dpi, sub);
a5ec7a66 5023 if (d_print_saw_error (dpi))
5024 return;
5025 }
5026 else
5027 {
bb6c1235 5028 const struct d_component_stack *dcse;
5029 int found_self_or_parent = 0;
5030
a5ec7a66 5031 /* This traversal is reentering SUB as a substition.
bb6c1235 5032 If we are not beneath SUB or DC in the tree then we
5033 need to restore SUB's template stack temporarily. */
5034 for (dcse = dpi->component_stack; dcse != NULL;
5035 dcse = dcse->parent)
5036 {
5037 if (dcse->dc == sub
5038 || (dcse->dc == dc
5039 && dcse != dpi->component_stack))
5040 {
5041 found_self_or_parent = 1;
5042 break;
5043 }
5044 }
5045
5046 if (!found_self_or_parent)
5047 {
5048 saved_templates = dpi->templates;
5049 dpi->templates = scope->templates;
5050 need_template_restore = 1;
5051 }
a5ec7a66 5052 }
5053
5054 a = d_lookup_template_argument (dpi, sub);
bad78770 5055 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
5056 a = d_index_template_argument (a, dpi->pack_index);
84be2b4d 5057
5058 if (a == NULL)
5059 {
a5ec7a66 5060 if (need_template_restore)
5061 dpi->templates = saved_templates;
5062
84be2b4d 5063 d_print_error (dpi);
5064 return;
5065 }
5066
bad78770 5067 sub = a;
5068 }
5069
5070 if (sub->type == DEMANGLE_COMPONENT_REFERENCE
5071 || sub->type == dc->type)
5072 dc = sub;
5073 else if (sub->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE)
5074 mod_inner = d_left (sub);
5075 }
6ff4434d 5076 /* Fall through. */
bad78770 5077
f95cb811 5078 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
5079 case DEMANGLE_COMPONENT_POINTER:
f95cb811 5080 case DEMANGLE_COMPONENT_COMPLEX:
5081 case DEMANGLE_COMPONENT_IMAGINARY:
2e9e9363 5082 FNQUAL_COMPONENT_CASE:
bad78770 5083 modifier:
1b4974e7 5084 {
5085 /* We keep a list of modifiers on the stack. */
5086 struct d_print_mod dpm;
168d63e5 5087
1b4974e7 5088 dpm.next = dpi->modifiers;
5089 dpi->modifiers = &dpm;
5090 dpm.mod = dc;
5091 dpm.printed = 0;
c1ea6f0c 5092 dpm.templates = dpi->templates;
168d63e5 5093
bad78770 5094 if (!mod_inner)
5095 mod_inner = d_left (dc);
5096
5097 d_print_comp (dpi, options, mod_inner);
f99edf23 5098
1b4974e7 5099 /* If the modifier didn't get printed by the type, print it
5100 now. */
5101 if (! dpm.printed)
ce673d9a 5102 d_print_mod (dpi, options, dc);
168d63e5 5103
1b4974e7 5104 dpi->modifiers = dpm.next;
168d63e5 5105
a5ec7a66 5106 if (need_template_restore)
5107 dpi->templates = saved_templates;
5108
1b4974e7 5109 return;
5110 }
168d63e5 5111
f95cb811 5112 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
ce673d9a 5113 if ((options & DMGL_JAVA) == 0)
2c0843db 5114 d_append_buffer (dpi, dc->u.s_builtin.type->name,
5115 dc->u.s_builtin.type->len);
1b4974e7 5116 else
2c0843db 5117 d_append_buffer (dpi, dc->u.s_builtin.type->java_name,
5118 dc->u.s_builtin.type->java_len);
1b4974e7 5119 return;
168d63e5 5120
f95cb811 5121 case DEMANGLE_COMPONENT_VENDOR_TYPE:
ce673d9a 5122 d_print_comp (dpi, options, d_left (dc));
1b4974e7 5123 return;
168d63e5 5124
f95cb811 5125 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
1b4974e7 5126 {
ce673d9a 5127 if ((options & DMGL_RET_POSTFIX) != 0)
932501f9 5128 d_print_function_type (dpi,
5129 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5130 dc, dpi->modifiers);
4c8420c9 5131
5132 /* Print return type if present */
be03abe8 5133 if (d_left (dc) != NULL && (options & DMGL_RET_POSTFIX) != 0)
5134 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5135 d_left (dc));
5136 else if (d_left (dc) != NULL && (options & DMGL_RET_DROP) == 0)
1b4974e7 5137 {
5138 struct d_print_mod dpm;
168d63e5 5139
1b4974e7 5140 /* We must pass this type down as a modifier in order to
5141 print it in the right location. */
1b4974e7 5142 dpm.next = dpi->modifiers;
5143 dpi->modifiers = &dpm;
5144 dpm.mod = dc;
5145 dpm.printed = 0;
c1ea6f0c 5146 dpm.templates = dpi->templates;
168d63e5 5147
932501f9 5148 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5149 d_left (dc));
168d63e5 5150
1b4974e7 5151 dpi->modifiers = dpm.next;
168d63e5 5152
1b4974e7 5153 if (dpm.printed)
5154 return;
168d63e5 5155
4c8420c9 5156 /* In standard prefix notation, there is a space between the
5157 return type and the function signature. */
ce673d9a 5158 if ((options & DMGL_RET_POSTFIX) == 0)
4c8420c9 5159 d_append_char (dpi, ' ');
1b4974e7 5160 }
168d63e5 5161
ce673d9a 5162 if ((options & DMGL_RET_POSTFIX) == 0)
932501f9 5163 d_print_function_type (dpi,
5164 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5165 dc, dpi->modifiers);
140d75d7 5166
1b4974e7 5167 return;
5168 }
168d63e5 5169
f95cb811 5170 case DEMANGLE_COMPONENT_ARRAY_TYPE:
1b4974e7 5171 {
6ff4434d 5172 struct d_print_mod *hold_modifiers;
5173 struct d_print_mod adpm[4];
5174 unsigned int i;
5175 struct d_print_mod *pdpm;
168d63e5 5176
1b4974e7 5177 /* We must pass this type down as a modifier in order to print
6ff4434d 5178 multi-dimensional arrays correctly. If the array itself is
5179 CV-qualified, we act as though the element type were
5180 CV-qualified. We do this by copying the modifiers down
5181 rather than fiddling pointers, so that we don't wind up
5182 with a d_print_mod higher on the stack pointing into our
5183 stack frame after we return. */
140d75d7 5184
6ff4434d 5185 hold_modifiers = dpi->modifiers;
5186
5187 adpm[0].next = hold_modifiers;
5188 dpi->modifiers = &adpm[0];
5189 adpm[0].mod = dc;
5190 adpm[0].printed = 0;
5191 adpm[0].templates = dpi->templates;
5192
5193 i = 1;
5194 pdpm = hold_modifiers;
5195 while (pdpm != NULL
5196 && (pdpm->mod->type == DEMANGLE_COMPONENT_RESTRICT
5197 || pdpm->mod->type == DEMANGLE_COMPONENT_VOLATILE
5198 || pdpm->mod->type == DEMANGLE_COMPONENT_CONST))
5199 {
5200 if (! pdpm->printed)
5201 {
5202 if (i >= sizeof adpm / sizeof adpm[0])
5203 {
5204 d_print_error (dpi);
5205 return;
5206 }
5207
5208 adpm[i] = *pdpm;
5209 adpm[i].next = dpi->modifiers;
5210 dpi->modifiers = &adpm[i];
5211 pdpm->printed = 1;
5212 ++i;
5213 }
5214
5215 pdpm = pdpm->next;
5216 }
168d63e5 5217
ce673d9a 5218 d_print_comp (dpi, options, d_right (dc));
168d63e5 5219
6ff4434d 5220 dpi->modifiers = hold_modifiers;
168d63e5 5221
6ff4434d 5222 if (adpm[0].printed)
1b4974e7 5223 return;
168d63e5 5224
6ff4434d 5225 while (i > 1)
5226 {
5227 --i;
ce673d9a 5228 d_print_mod (dpi, options, adpm[i].mod);
6ff4434d 5229 }
5230
ce673d9a 5231 d_print_array_type (dpi, options, dc, dpi->modifiers);
168d63e5 5232
1b4974e7 5233 return;
5234 }
168d63e5 5235
f95cb811 5236 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
29e2e80a 5237 case DEMANGLE_COMPONENT_VECTOR_TYPE:
1b4974e7 5238 {
1b4974e7 5239 struct d_print_mod dpm;
5240
1b4974e7 5241 dpm.next = dpi->modifiers;
5242 dpi->modifiers = &dpm;
5243 dpm.mod = dc;
5244 dpm.printed = 0;
c1ea6f0c 5245 dpm.templates = dpi->templates;
1b4974e7 5246
ce673d9a 5247 d_print_comp (dpi, options, d_right (dc));
1b4974e7 5248
5249 /* If the modifier didn't get printed by the type, print it
5250 now. */
5251 if (! dpm.printed)
ce673d9a 5252 d_print_mod (dpi, options, dc);
168d63e5 5253
1b4974e7 5254 dpi->modifiers = dpm.next;
168d63e5 5255
1b4974e7 5256 return;
5257 }
168d63e5 5258
e4583147 5259 case DEMANGLE_COMPONENT_FIXED_TYPE:
5260 if (dc->u.s_fixed.sat)
5261 d_append_string (dpi, "_Sat ");
5262 /* Don't print "int _Accum". */
5263 if (dc->u.s_fixed.length->u.s_builtin.type
5264 != &cplus_demangle_builtin_types['i'-'a'])
5265 {
ce673d9a 5266 d_print_comp (dpi, options, dc->u.s_fixed.length);
e4583147 5267 d_append_char (dpi, ' ');
5268 }
5269 if (dc->u.s_fixed.accum)
5270 d_append_string (dpi, "_Accum");
5271 else
5272 d_append_string (dpi, "_Fract");
5273 return;
5274
f95cb811 5275 case DEMANGLE_COMPONENT_ARGLIST:
5276 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
4682b6fe 5277 if (d_left (dc) != NULL)
ce673d9a 5278 d_print_comp (dpi, options, d_left (dc));
1b4974e7 5279 if (d_right (dc) != NULL)
5280 {
3986b463 5281 size_t len;
f2ba0f87 5282 unsigned long int flush_count;
5283 /* Make sure ", " isn't flushed by d_append_string, otherwise
5284 dpi->len -= 2 wouldn't work. */
5285 if (dpi->len >= sizeof (dpi->buf) - 2)
5286 d_print_flush (dpi);
611fc3d0 5287 d_append_string (dpi, ", ");
3986b463 5288 len = dpi->len;
f2ba0f87 5289 flush_count = dpi->flush_count;
ce673d9a 5290 d_print_comp (dpi, options, d_right (dc));
3986b463 5291 /* If that didn't print anything (which can happen with empty
5292 template argument packs), remove the comma and space. */
f2ba0f87 5293 if (dpi->flush_count == flush_count && dpi->len == len)
3986b463 5294 dpi->len -= 2;
1b4974e7 5295 }
5296 return;
168d63e5 5297
2d847c18 5298 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
5299 {
5300 struct demangle_component *type = d_left (dc);
5301 struct demangle_component *list = d_right (dc);
5302
5303 if (type)
5304 d_print_comp (dpi, options, type);
5305 d_append_char (dpi, '{');
5306 d_print_comp (dpi, options, list);
5307 d_append_char (dpi, '}');
5308 }
5309 return;
5310
f95cb811 5311 case DEMANGLE_COMPONENT_OPERATOR:
1b4974e7 5312 {
4ef84ecb 5313 const struct demangle_operator_info *op = dc->u.s_operator.op;
5314 int len = op->len;
1b4974e7 5315
611fc3d0 5316 d_append_string (dpi, "operator");
4ef84ecb 5317 /* Add a space before new/delete. */
5318 if (IS_LOWER (op->name[0]))
1b4974e7 5319 d_append_char (dpi, ' ');
4ef84ecb 5320 /* Omit a trailing space. */
5321 if (op->name[len-1] == ' ')
5322 --len;
5323 d_append_buffer (dpi, op->name, len);
1b4974e7 5324 return;
5325 }
168d63e5 5326
f95cb811 5327 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
611fc3d0 5328 d_append_string (dpi, "operator ");
ce673d9a 5329 d_print_comp (dpi, options, dc->u.s_extended_operator.name);
1b4974e7 5330 return;
168d63e5 5331
88845c03 5332 case DEMANGLE_COMPONENT_CONVERSION:
611fc3d0 5333 d_append_string (dpi, "operator ");
88845c03 5334 d_print_conversion (dpi, options, dc);
1b4974e7 5335 return;
168d63e5 5336
2d847c18 5337 case DEMANGLE_COMPONENT_NULLARY:
5338 d_print_expr_op (dpi, options, d_left (dc));
5339 return;
5340
f95cb811 5341 case DEMANGLE_COMPONENT_UNARY:
2d847c18 5342 {
5343 struct demangle_component *op = d_left (dc);
5344 struct demangle_component *operand = d_right (dc);
5345 const char *code = NULL;
c87f3e50 5346
2d847c18 5347 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
5348 {
5349 code = op->u.s_operator.op->code;
5350 if (!strcmp (code, "ad"))
5351 {
5352 /* Don't print the argument list for the address of a
5353 function. */
5354 if (operand->type == DEMANGLE_COMPONENT_TYPED_NAME
5355 && d_left (operand)->type == DEMANGLE_COMPONENT_QUAL_NAME
5356 && d_right (operand)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
5357 operand = d_left (operand);
5358 }
5359 if (operand->type == DEMANGLE_COMPONENT_BINARY_ARGS)
5360 {
5361 /* This indicates a suffix operator. */
5362 operand = d_left (operand);
5363 d_print_subexpr (dpi, options, operand);
5364 d_print_expr_op (dpi, options, op);
5365 return;
5366 }
5367 }
c87f3e50 5368
17fdf85c 5369 /* For sizeof..., just print the pack length. */
5370 if (code && !strcmp (code, "sZ"))
5371 {
5372 struct demangle_component *a = d_find_pack (dpi, operand);
5373 int len = d_pack_length (a);
5374 d_append_num (dpi, len);
5375 return;
5376 }
5377 else if (code && !strcmp (code, "sP"))
5378 {
5379 int len = d_args_length (dpi, operand);
5380 d_append_num (dpi, len);
5381 return;
5382 }
5383
2d847c18 5384 if (op->type != DEMANGLE_COMPONENT_CAST)
5385 d_print_expr_op (dpi, options, op);
5386 else
5387 {
5388 d_append_char (dpi, '(');
5389 d_print_cast (dpi, options, op);
5390 d_append_char (dpi, ')');
5391 }
5392 if (code && !strcmp (code, "gs"))
5393 /* Avoid parens after '::'. */
5394 d_print_comp (dpi, options, operand);
5395 else if (code && !strcmp (code, "st"))
5396 /* Always print parens for sizeof (type). */
5397 {
5398 d_append_char (dpi, '(');
5399 d_print_comp (dpi, options, operand);
5400 d_append_char (dpi, ')');
5401 }
5402 else
5403 d_print_subexpr (dpi, options, operand);
5404 }
1b4974e7 5405 return;
5406
f95cb811 5407 case DEMANGLE_COMPONENT_BINARY:
5408 if (d_right (dc)->type != DEMANGLE_COMPONENT_BINARY_ARGS)
168d63e5 5409 {
1b4974e7 5410 d_print_error (dpi);
5411 return;
168d63e5 5412 }
3c87c5c3 5413
6434e009 5414 if (op_is_new_cast (d_left (dc)))
5415 {
5416 d_print_expr_op (dpi, options, d_left (dc));
5417 d_append_char (dpi, '<');
5418 d_print_comp (dpi, options, d_left (d_right (dc)));
5419 d_append_string (dpi, ">(");
5420 d_print_comp (dpi, options, d_right (d_right (dc)));
5421 d_append_char (dpi, ')');
5422 return;
5423 }
5424
5bb83f10 5425 if (d_maybe_print_fold_expression (dpi, options, dc))
5426 return;
5427
3c87c5c3 5428 /* We wrap an expression which uses the greater-than operator in
5429 an extra layer of parens so that it does not get confused
5430 with the '>' which ends the template parameters. */
f95cb811 5431 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
2c0843db 5432 && d_left (dc)->u.s_operator.op->len == 1
5433 && d_left (dc)->u.s_operator.op->name[0] == '>')
3c87c5c3 5434 d_append_char (dpi, '(');
5435
c87f3e50 5436 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") == 0
5437 && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_TYPED_NAME)
5438 {
5439 /* Function call used in an expression should not have printed types
5440 of the function arguments. Values of the function arguments still
5441 get printed below. */
5442
5443 const struct demangle_component *func = d_left (d_right (dc));
5444
5445 if (d_right (func)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE)
5446 d_print_error (dpi);
5447 d_print_subexpr (dpi, options, d_left (func));
5448 }
5449 else
5450 d_print_subexpr (dpi, options, d_left (d_right (dc)));
e9b1be72 5451 if (strcmp (d_left (dc)->u.s_operator.op->code, "ix") == 0)
5452 {
5453 d_append_char (dpi, '[');
ce673d9a 5454 d_print_comp (dpi, options, d_right (d_right (dc)));
e9b1be72 5455 d_append_char (dpi, ']');
5456 }
5457 else
5458 {
5459 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") != 0)
ce673d9a 5460 d_print_expr_op (dpi, options, d_left (dc));
5461 d_print_subexpr (dpi, options, d_right (d_right (dc)));
e9b1be72 5462 }
3c87c5c3 5463
f95cb811 5464 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
2c0843db 5465 && d_left (dc)->u.s_operator.op->len == 1
5466 && d_left (dc)->u.s_operator.op->name[0] == '>')
3c87c5c3 5467 d_append_char (dpi, ')');
5468
1b4974e7 5469 return;
5470
f95cb811 5471 case DEMANGLE_COMPONENT_BINARY_ARGS:
5472 /* We should only see this as part of DEMANGLE_COMPONENT_BINARY. */
1b4974e7 5473 d_print_error (dpi);
5474 return;
5475
f95cb811 5476 case DEMANGLE_COMPONENT_TRINARY:
5477 if (d_right (dc)->type != DEMANGLE_COMPONENT_TRINARY_ARG1
5478 || d_right (d_right (dc))->type != DEMANGLE_COMPONENT_TRINARY_ARG2)
1b4974e7 5479 {
5480 d_print_error (dpi);
5481 return;
5482 }
5bb83f10 5483 if (d_maybe_print_fold_expression (dpi, options, dc))
5484 return;
2d847c18 5485 {
5486 struct demangle_component *op = d_left (dc);
5487 struct demangle_component *first = d_left (d_right (dc));
5488 struct demangle_component *second = d_left (d_right (d_right (dc)));
5489 struct demangle_component *third = d_right (d_right (d_right (dc)));
5490
5491 if (!strcmp (op->u.s_operator.op->code, "qu"))
5492 {
5493 d_print_subexpr (dpi, options, first);
5494 d_print_expr_op (dpi, options, op);
5495 d_print_subexpr (dpi, options, second);
5496 d_append_string (dpi, " : ");
5497 d_print_subexpr (dpi, options, third);
5498 }
5499 else
5500 {
5501 d_append_string (dpi, "new ");
5502 if (d_left (first) != NULL)
5503 {
5504 d_print_subexpr (dpi, options, first);
5505 d_append_char (dpi, ' ');
5506 }
5507 d_print_comp (dpi, options, second);
5508 if (third)
5509 d_print_subexpr (dpi, options, third);
5510 }
5511 }
1b4974e7 5512 return;
5513
f95cb811 5514 case DEMANGLE_COMPONENT_TRINARY_ARG1:
5515 case DEMANGLE_COMPONENT_TRINARY_ARG2:
5516 /* We should only see these are part of DEMANGLE_COMPONENT_TRINARY. */
1b4974e7 5517 d_print_error (dpi);
5518 return;
5519
f95cb811 5520 case DEMANGLE_COMPONENT_LITERAL:
5521 case DEMANGLE_COMPONENT_LITERAL_NEG:
a86aec34 5522 {
5523 enum d_builtin_type_print tp;
1b4974e7 5524
a86aec34 5525 /* For some builtin types, produce simpler output. */
5526 tp = D_PRINT_DEFAULT;
5527 if (d_left (dc)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE)
5528 {
5529 tp = d_left (dc)->u.s_builtin.type->print;
5530 switch (tp)
5531 {
5532 case D_PRINT_INT:
5533 case D_PRINT_UNSIGNED:
5534 case D_PRINT_LONG:
5535 case D_PRINT_UNSIGNED_LONG:
5536 case D_PRINT_LONG_LONG:
5537 case D_PRINT_UNSIGNED_LONG_LONG:
5538 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME)
5539 {
5540 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
5541 d_append_char (dpi, '-');
ce673d9a 5542 d_print_comp (dpi, options, d_right (dc));
a86aec34 5543 switch (tp)
5544 {
5545 default:
5546 break;
5547 case D_PRINT_UNSIGNED:
5548 d_append_char (dpi, 'u');
5549 break;
5550 case D_PRINT_LONG:
5551 d_append_char (dpi, 'l');
5552 break;
5553 case D_PRINT_UNSIGNED_LONG:
611fc3d0 5554 d_append_string (dpi, "ul");
a86aec34 5555 break;
5556 case D_PRINT_LONG_LONG:
611fc3d0 5557 d_append_string (dpi, "ll");
a86aec34 5558 break;
5559 case D_PRINT_UNSIGNED_LONG_LONG:
611fc3d0 5560 d_append_string (dpi, "ull");
a86aec34 5561 break;
5562 }
5563 return;
5564 }
5565 break;
168d63e5 5566
a86aec34 5567 case D_PRINT_BOOL:
5568 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME
5569 && d_right (dc)->u.s_name.len == 1
5570 && dc->type == DEMANGLE_COMPONENT_LITERAL)
5571 {
5572 switch (d_right (dc)->u.s_name.s[0])
5573 {
5574 case '0':
611fc3d0 5575 d_append_string (dpi, "false");
a86aec34 5576 return;
5577 case '1':
611fc3d0 5578 d_append_string (dpi, "true");
a86aec34 5579 return;
5580 default:
5581 break;
5582 }
5583 }
5584 break;
140d75d7 5585
a86aec34 5586 default:
5587 break;
5588 }
5589 }
168d63e5 5590
a86aec34 5591 d_append_char (dpi, '(');
ce673d9a 5592 d_print_comp (dpi, options, d_left (dc));
a86aec34 5593 d_append_char (dpi, ')');
5594 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
5595 d_append_char (dpi, '-');
5596 if (tp == D_PRINT_FLOAT)
5597 d_append_char (dpi, '[');
ce673d9a 5598 d_print_comp (dpi, options, d_right (dc));
a86aec34 5599 if (tp == D_PRINT_FLOAT)
5600 d_append_char (dpi, ']');
5601 }
1b4974e7 5602 return;
168d63e5 5603
29e2e80a 5604 case DEMANGLE_COMPONENT_NUMBER:
5605 d_append_num (dpi, dc->u.s_number.number);
5606 return;
5607
c8d35c3c 5608 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
5609 d_append_string (dpi, "java resource ");
ce673d9a 5610 d_print_comp (dpi, options, d_left (dc));
c8d35c3c 5611 return;
5612
5613 case DEMANGLE_COMPONENT_COMPOUND_NAME:
ce673d9a 5614 d_print_comp (dpi, options, d_left (dc));
5615 d_print_comp (dpi, options, d_right (dc));
c8d35c3c 5616 return;
5617
5618 case DEMANGLE_COMPONENT_CHARACTER:
5619 d_append_char (dpi, dc->u.s_character.character);
5620 return;
5621
a2ad5e1b 5622 case DEMANGLE_COMPONENT_DECLTYPE:
5623 d_append_string (dpi, "decltype (");
ce673d9a 5624 d_print_comp (dpi, options, d_left (dc));
a2ad5e1b 5625 d_append_char (dpi, ')');
5626 return;
5627
4682b6fe 5628 case DEMANGLE_COMPONENT_PACK_EXPANSION:
5629 {
8173d80a 5630 int len;
4682b6fe 5631 int i;
8173d80a 5632 struct demangle_component *a = d_find_pack (dpi, d_left (dc));
5633 if (a == NULL)
5634 {
5635 /* d_find_pack won't find anything if the only packs involved
5636 in this expansion are function parameter packs; in that
5637 case, just print the pattern and "...". */
ce673d9a 5638 d_print_subexpr (dpi, options, d_left (dc));
8173d80a 5639 d_append_string (dpi, "...");
5640 return;
5641 }
4682b6fe 5642
8173d80a 5643 len = d_pack_length (a);
4682b6fe 5644 dc = d_left (dc);
5645 for (i = 0; i < len; ++i)
5646 {
5647 dpi->pack_index = i;
ce673d9a 5648 d_print_comp (dpi, options, dc);
4682b6fe 5649 if (i < len-1)
5650 d_append_string (dpi, ", ");
5651 }
5652 }
5653 return;
5654
e92154af 5655 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
f220ea72 5656 {
5657 long num = dc->u.s_number.number;
5658 if (num == 0)
5659 d_append_string (dpi, "this");
5660 else
5661 {
5662 d_append_string (dpi, "{parm#");
5663 d_append_num (dpi, num);
5664 d_append_char (dpi, '}');
5665 }
5666 }
a8b75081 5667 return;
e92154af 5668
7ddff01e 5669 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
5670 d_append_string (dpi, "global constructors keyed to ");
ce673d9a 5671 d_print_comp (dpi, options, dc->u.s_binary.left);
7ddff01e 5672 return;
5673
5674 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
5675 d_append_string (dpi, "global destructors keyed to ");
ce673d9a 5676 d_print_comp (dpi, options, dc->u.s_binary.left);
7ddff01e 5677 return;
5678
a8b75081 5679 case DEMANGLE_COMPONENT_LAMBDA:
5680 d_append_string (dpi, "{lambda(");
b35d5d07 5681 /* Generic lambda auto parms are mangled as the template type
5682 parm they are. */
5683 dpi->is_lambda_arg++;
ce673d9a 5684 d_print_comp (dpi, options, dc->u.s_unary_num.sub);
b35d5d07 5685 dpi->is_lambda_arg--;
a8b75081 5686 d_append_string (dpi, ")#");
5687 d_append_num (dpi, dc->u.s_unary_num.num + 1);
5688 d_append_char (dpi, '}');
5689 return;
5690
5691 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
5692 d_append_string (dpi, "{unnamed type#");
5693 d_append_num (dpi, dc->u.s_number.number + 1);
5694 d_append_char (dpi, '}');
5695 return;
5696
0d80d940 5697 case DEMANGLE_COMPONENT_CLONE:
5698 d_print_comp (dpi, options, d_left (dc));
5699 d_append_string (dpi, " [clone ");
5700 d_print_comp (dpi, options, d_right (dc));
5701 d_append_char (dpi, ']');
5702 return;
5703
1b4974e7 5704 default:
5705 d_print_error (dpi);
5706 return;
5707 }
168d63e5 5708}
5709
bb6c1235 5710static void
5711d_print_comp (struct d_print_info *dpi, int options,
a664c62c 5712 struct demangle_component *dc)
bb6c1235 5713{
5714 struct d_component_stack self;
b4cd77b1 5715 if (dc == NULL || dc->d_printing > 1 || dpi->recursion > MAX_RECURSION_COUNT)
a664c62c 5716 {
5717 d_print_error (dpi);
5718 return;
5719 }
b4cd77b1 5720
5721 dc->d_printing++;
5722 dpi->recursion++;
bb6c1235 5723
5724 self.dc = dc;
5725 self.parent = dpi->component_stack;
5726 dpi->component_stack = &self;
5727
5728 d_print_comp_inner (dpi, options, dc);
5729
5730 dpi->component_stack = self.parent;
a664c62c 5731 dc->d_printing--;
b4cd77b1 5732 dpi->recursion--;
bb6c1235 5733}
5734
2c0843db 5735/* Print a Java dentifier. For Java we try to handle encoded extended
5736 Unicode characters. The C++ ABI doesn't mention Unicode encoding,
5737 so we don't it for C++. Characters are encoded as
5738 __U<hex-char>+_. */
168d63e5 5739
1b4974e7 5740static void
d94aaf66 5741d_print_java_identifier (struct d_print_info *dpi, const char *name, int len)
168d63e5 5742{
2c0843db 5743 const char *p;
5744 const char *end;
168d63e5 5745
2c0843db 5746 end = name + len;
5747 for (p = name; p < end; ++p)
5748 {
5749 if (end - p > 3
5750 && p[0] == '_'
5751 && p[1] == '_'
5752 && p[2] == 'U')
168d63e5 5753 {
2c0843db 5754 unsigned long c;
5755 const char *q;
5756
5757 c = 0;
5758 for (q = p + 3; q < end; ++q)
1b4974e7 5759 {
2c0843db 5760 int dig;
5761
5762 if (IS_DIGIT (*q))
5763 dig = *q - '0';
5764 else if (*q >= 'A' && *q <= 'F')
5765 dig = *q - 'A' + 10;
5766 else if (*q >= 'a' && *q <= 'f')
5767 dig = *q - 'a' + 10;
5768 else
5769 break;
168d63e5 5770
2c0843db 5771 c = c * 16 + dig;
5772 }
5773 /* If the Unicode character is larger than 256, we don't try
5774 to deal with it here. FIXME. */
5775 if (q < end && *q == '_' && c < 256)
5776 {
5777 d_append_char (dpi, c);
5778 p = q;
5779 continue;
1b4974e7 5780 }
1b4974e7 5781 }
2c0843db 5782
5783 d_append_char (dpi, *p);
168d63e5 5784 }
168d63e5 5785}
5786
3c87c5c3 5787/* Print a list of modifiers. SUFFIX is 1 if we are printing
5788 qualifiers on this after printing a function. */
168d63e5 5789
1b4974e7 5790static void
ce673d9a 5791d_print_mod_list (struct d_print_info *dpi, int options,
d94aaf66 5792 struct d_print_mod *mods, int suffix)
168d63e5 5793{
c1ea6f0c 5794 struct d_print_template *hold_dpt;
5795
3c87c5c3 5796 if (mods == NULL || d_print_saw_error (dpi))
1b4974e7 5797 return;
168d63e5 5798
3c87c5c3 5799 if (mods->printed
5800 || (! suffix
2e9e9363 5801 && (is_fnqual_component_type (mods->mod->type))))
3c87c5c3 5802 {
ce673d9a 5803 d_print_mod_list (dpi, options, mods->next, suffix);
3c87c5c3 5804 return;
5805 }
5806
c1ea6f0c 5807 mods->printed = 1;
5808
5809 hold_dpt = dpi->templates;
5810 dpi->templates = mods->templates;
5811
f95cb811 5812 if (mods->mod->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
168d63e5 5813 {
ce673d9a 5814 d_print_function_type (dpi, options, mods->mod, mods->next);
c1ea6f0c 5815 dpi->templates = hold_dpt;
1b4974e7 5816 return;
5817 }
f95cb811 5818 else if (mods->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
1b4974e7 5819 {
ce673d9a 5820 d_print_array_type (dpi, options, mods->mod, mods->next);
c1ea6f0c 5821 dpi->templates = hold_dpt;
1b4974e7 5822 return;
5823 }
f95cb811 5824 else if (mods->mod->type == DEMANGLE_COMPONENT_LOCAL_NAME)
77097adf 5825 {
5826 struct d_print_mod *hold_modifiers;
f95cb811 5827 struct demangle_component *dc;
77097adf 5828
5829 /* When this is on the modifier stack, we have pulled any
5830 qualifiers off the right argument already. Otherwise, we
5831 print it as usual, but don't let the left argument see any
5832 modifiers. */
5833
5834 hold_modifiers = dpi->modifiers;
5835 dpi->modifiers = NULL;
ce673d9a 5836 d_print_comp (dpi, options, d_left (mods->mod));
77097adf 5837 dpi->modifiers = hold_modifiers;
5838
ce673d9a 5839 if ((options & DMGL_JAVA) == 0)
611fc3d0 5840 d_append_string (dpi, "::");
2c0843db 5841 else
5842 d_append_char (dpi, '.');
77097adf 5843
5844 dc = d_right (mods->mod);
a8b75081 5845
5846 if (dc->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
5847 {
5848 d_append_string (dpi, "{default arg#");
5849 d_append_num (dpi, dc->u.s_unary_num.num + 1);
5850 d_append_string (dpi, "}::");
5851 dc = dc->u.s_unary_num.sub;
5852 }
5853
2e9e9363 5854 while (is_fnqual_component_type (dc->type))
77097adf 5855 dc = d_left (dc);
5856
ce673d9a 5857 d_print_comp (dpi, options, dc);
77097adf 5858
5859 dpi->templates = hold_dpt;
5860 return;
5861 }
168d63e5 5862
ce673d9a 5863 d_print_mod (dpi, options, mods->mod);
168d63e5 5864
c1ea6f0c 5865 dpi->templates = hold_dpt;
5866
ce673d9a 5867 d_print_mod_list (dpi, options, mods->next, suffix);
168d63e5 5868}
c1ea6f0c 5869
1b4974e7 5870/* Print a modifier. */
168d63e5 5871
1b4974e7 5872static void
ce673d9a 5873d_print_mod (struct d_print_info *dpi, int options,
a664c62c 5874 struct demangle_component *mod)
1b4974e7 5875{
5876 switch (mod->type)
5877 {
f95cb811 5878 case DEMANGLE_COMPONENT_RESTRICT:
5879 case DEMANGLE_COMPONENT_RESTRICT_THIS:
611fc3d0 5880 d_append_string (dpi, " restrict");
1b4974e7 5881 return;
f95cb811 5882 case DEMANGLE_COMPONENT_VOLATILE:
5883 case DEMANGLE_COMPONENT_VOLATILE_THIS:
611fc3d0 5884 d_append_string (dpi, " volatile");
1b4974e7 5885 return;
f95cb811 5886 case DEMANGLE_COMPONENT_CONST:
5887 case DEMANGLE_COMPONENT_CONST_THIS:
611fc3d0 5888 d_append_string (dpi, " const");
1b4974e7 5889 return;
6d02e6b2 5890 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
5891 d_append_string (dpi, " transaction_safe");
5892 return;
2e9e9363 5893 case DEMANGLE_COMPONENT_NOEXCEPT:
5894 d_append_string (dpi, " noexcept");
5895 if (d_right (mod))
5896 {
5897 d_append_char (dpi, '(');
5898 d_print_comp (dpi, options, d_right (mod));
5899 d_append_char (dpi, ')');
5900 }
5901 return;
5902 case DEMANGLE_COMPONENT_THROW_SPEC:
5903 d_append_string (dpi, " throw");
5904 if (d_right (mod))
5905 {
5906 d_append_char (dpi, '(');
5907 d_print_comp (dpi, options, d_right (mod));
5908 d_append_char (dpi, ')');
5909 }
5910 return;
f95cb811 5911 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
1b4974e7 5912 d_append_char (dpi, ' ');
ce673d9a 5913 d_print_comp (dpi, options, d_right (mod));
1b4974e7 5914 return;
f95cb811 5915 case DEMANGLE_COMPONENT_POINTER:
1b4974e7 5916 /* There is no pointer symbol in Java. */
ce673d9a 5917 if ((options & DMGL_JAVA) == 0)
1b4974e7 5918 d_append_char (dpi, '*');
5919 return;
1189258f 5920 case DEMANGLE_COMPONENT_REFERENCE_THIS:
5921 /* For the ref-qualifier, put a space before the &. */
5922 d_append_char (dpi, ' ');
e3533433 5923 /* FALLTHRU */
f95cb811 5924 case DEMANGLE_COMPONENT_REFERENCE:
1b4974e7 5925 d_append_char (dpi, '&');
5926 return;
1189258f 5927 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
5928 d_append_char (dpi, ' ');
e3533433 5929 /* FALLTHRU */
c4692e04 5930 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5931 d_append_string (dpi, "&&");
5932 return;
f95cb811 5933 case DEMANGLE_COMPONENT_COMPLEX:
611fc3d0 5934 d_append_string (dpi, "complex ");
1b4974e7 5935 return;
f95cb811 5936 case DEMANGLE_COMPONENT_IMAGINARY:
611fc3d0 5937 d_append_string (dpi, "imaginary ");
1b4974e7 5938 return;
f95cb811 5939 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
3c87c5c3 5940 if (d_last_char (dpi) != '(')
1b4974e7 5941 d_append_char (dpi, ' ');
ce673d9a 5942 d_print_comp (dpi, options, d_left (mod));
611fc3d0 5943 d_append_string (dpi, "::*");
1b4974e7 5944 return;
f95cb811 5945 case DEMANGLE_COMPONENT_TYPED_NAME:
ce673d9a 5946 d_print_comp (dpi, options, d_left (mod));
1b4974e7 5947 return;
29e2e80a 5948 case DEMANGLE_COMPONENT_VECTOR_TYPE:
2c69eb5f 5949 d_append_string (dpi, " __vector(");
ce673d9a 5950 d_print_comp (dpi, options, d_left (mod));
2c69eb5f 5951 d_append_char (dpi, ')');
29e2e80a 5952 return;
5953
1b4974e7 5954 default:
5955 /* Otherwise, we have something that won't go back on the
5956 modifier stack, so we can just print it. */
ce673d9a 5957 d_print_comp (dpi, options, mod);
1b4974e7 5958 return;
5959 }
5960}
168d63e5 5961
1b4974e7 5962/* Print a function type, except for the return type. */
168d63e5 5963
1b4974e7 5964static void
ce673d9a 5965d_print_function_type (struct d_print_info *dpi, int options,
a664c62c 5966 struct demangle_component *dc,
d94aaf66 5967 struct d_print_mod *mods)
168d63e5 5968{
c1ea6f0c 5969 int need_paren;
a86aec34 5970 int need_space;
c1ea6f0c 5971 struct d_print_mod *p;
77097adf 5972 struct d_print_mod *hold_modifiers;
c1ea6f0c 5973
5974 need_paren = 0;
a86aec34 5975 need_space = 0;
c1ea6f0c 5976 for (p = mods; p != NULL; p = p->next)
1b4974e7 5977 {
c1ea6f0c 5978 if (p->printed)
5979 break;
168d63e5 5980
c1ea6f0c 5981 switch (p->mod->type)
1b4974e7 5982 {
a86aec34 5983 case DEMANGLE_COMPONENT_POINTER:
5984 case DEMANGLE_COMPONENT_REFERENCE:
c4692e04 5985 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
a86aec34 5986 need_paren = 1;
5987 break;
f95cb811 5988 case DEMANGLE_COMPONENT_RESTRICT:
5989 case DEMANGLE_COMPONENT_VOLATILE:
5990 case DEMANGLE_COMPONENT_CONST:
5991 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
f95cb811 5992 case DEMANGLE_COMPONENT_COMPLEX:
5993 case DEMANGLE_COMPONENT_IMAGINARY:
5994 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
a86aec34 5995 need_space = 1;
c1ea6f0c 5996 need_paren = 1;
5997 break;
2e9e9363 5998 FNQUAL_COMPONENT_CASE:
3c87c5c3 5999 break;
c1ea6f0c 6000 default:
6001 break;
1b4974e7 6002 }
c1ea6f0c 6003 if (need_paren)
6004 break;
6005 }
168d63e5 6006
c1ea6f0c 6007 if (need_paren)
3c87c5c3 6008 {
a86aec34 6009 if (! need_space)
3c87c5c3 6010 {
a86aec34 6011 if (d_last_char (dpi) != '('
6012 && d_last_char (dpi) != '*')
6013 need_space = 1;
3c87c5c3 6014 }
a86aec34 6015 if (need_space && d_last_char (dpi) != ' ')
6016 d_append_char (dpi, ' ');
3c87c5c3 6017 d_append_char (dpi, '(');
6018 }
168d63e5 6019
77097adf 6020 hold_modifiers = dpi->modifiers;
6021 dpi->modifiers = NULL;
6022
ce673d9a 6023 d_print_mod_list (dpi, options, mods, 0);
168d63e5 6024
c1ea6f0c 6025 if (need_paren)
6026 d_append_char (dpi, ')');
168d63e5 6027
1b4974e7 6028 d_append_char (dpi, '(');
168d63e5 6029
1b4974e7 6030 if (d_right (dc) != NULL)
ce673d9a 6031 d_print_comp (dpi, options, d_right (dc));
168d63e5 6032
1b4974e7 6033 d_append_char (dpi, ')');
3c87c5c3 6034
ce673d9a 6035 d_print_mod_list (dpi, options, mods, 1);
77097adf 6036
6037 dpi->modifiers = hold_modifiers;
1b4974e7 6038}
168d63e5 6039
1b4974e7 6040/* Print an array type, except for the element type. */
168d63e5 6041
1b4974e7 6042static void
ce673d9a 6043d_print_array_type (struct d_print_info *dpi, int options,
a664c62c 6044 struct demangle_component *dc,
d94aaf66 6045 struct d_print_mod *mods)
1b4974e7 6046{
6047 int need_space;
168d63e5 6048
1b4974e7 6049 need_space = 1;
6050 if (mods != NULL)
168d63e5 6051 {
1b4974e7 6052 int need_paren;
6053 struct d_print_mod *p;
140d75d7 6054
1b4974e7 6055 need_paren = 0;
6056 for (p = mods; p != NULL; p = p->next)
168d63e5 6057 {
6ff4434d 6058 if (! p->printed)
168d63e5 6059 {
6ff4434d 6060 if (p->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
6061 {
6062 need_space = 0;
6063 break;
6064 }
6065 else
6066 {
6067 need_paren = 1;
6068 need_space = 1;
6069 break;
6070 }
168d63e5 6071 }
1b4974e7 6072 }
168d63e5 6073
1b4974e7 6074 if (need_paren)
611fc3d0 6075 d_append_string (dpi, " (");
168d63e5 6076
ce673d9a 6077 d_print_mod_list (dpi, options, mods, 0);
168d63e5 6078
1b4974e7 6079 if (need_paren)
6080 d_append_char (dpi, ')');
6081 }
168d63e5 6082
1b4974e7 6083 if (need_space)
6084 d_append_char (dpi, ' ');
140d75d7 6085
1b4974e7 6086 d_append_char (dpi, '[');
140d75d7 6087
1b4974e7 6088 if (d_left (dc) != NULL)
ce673d9a 6089 d_print_comp (dpi, options, d_left (dc));
168d63e5 6090
1b4974e7 6091 d_append_char (dpi, ']');
6092}
168d63e5 6093
1b4974e7 6094/* Print an operator in an expression. */
168d63e5 6095
1b4974e7 6096static void
ce673d9a 6097d_print_expr_op (struct d_print_info *dpi, int options,
a664c62c 6098 struct demangle_component *dc)
1b4974e7 6099{
f95cb811 6100 if (dc->type == DEMANGLE_COMPONENT_OPERATOR)
2c0843db 6101 d_append_buffer (dpi, dc->u.s_operator.op->name,
6102 dc->u.s_operator.op->len);
1b4974e7 6103 else
ce673d9a 6104 d_print_comp (dpi, options, dc);
168d63e5 6105}
6106
1b4974e7 6107/* Print a cast. */
168d63e5 6108
1b4974e7 6109static void
ce673d9a 6110d_print_cast (struct d_print_info *dpi, int options,
a664c62c 6111 struct demangle_component *dc)
88845c03 6112{
6113 d_print_comp (dpi, options, d_left (dc));
6114}
6115
6116/* Print a conversion operator. */
6117
6118static void
6119d_print_conversion (struct d_print_info *dpi, int options,
a664c62c 6120 struct demangle_component *dc)
168d63e5 6121{
f89ffc3b 6122 struct d_print_template dpt;
c1ea6f0c 6123
88845c03 6124 /* For a conversion operator, we need the template parameters from
f89ffc3b 6125 the enclosing template in scope for processing the type. */
6126 if (dpi->current_template != NULL)
6127 {
1b4974e7 6128 dpt.next = dpi->templates;
6129 dpi->templates = &dpt;
f89ffc3b 6130 dpt.template_decl = dpi->current_template;
6131 }
6b45c28d 6132
f89ffc3b 6133 if (d_left (dc)->type != DEMANGLE_COMPONENT_TEMPLATE)
6134 {
6135 d_print_comp (dpi, options, d_left (dc));
6136 if (dpi->current_template != NULL)
6137 dpi->templates = dpt.next;
6138 }
6139 else
6140 {
ce673d9a 6141 d_print_comp (dpi, options, d_left (d_left (dc)));
6b45c28d 6142
f89ffc3b 6143 /* For a templated cast operator, we need to remove the template
6144 parameters from scope after printing the operator name,
6145 so we need to handle the template printing here. */
6146 if (dpi->current_template != NULL)
6147 dpi->templates = dpt.next;
168d63e5 6148
3c87c5c3 6149 if (d_last_char (dpi) == '<')
6150 d_append_char (dpi, ' ');
1b4974e7 6151 d_append_char (dpi, '<');
ce673d9a 6152 d_print_comp (dpi, options, d_right (d_left (dc)));
1b4974e7 6153 /* Avoid generating two consecutive '>' characters, to avoid
6154 the C++ syntactic ambiguity. */
3c87c5c3 6155 if (d_last_char (dpi) == '>')
1b4974e7 6156 d_append_char (dpi, ' ');
6157 d_append_char (dpi, '>');
168d63e5 6158 }
1b4974e7 6159}
6160
6161/* Initialize the information structure we use to pass around
6162 information. */
6163
f95cb811 6164CP_STATIC_IF_GLIBCPP_V3
6165void
d94aaf66 6166cplus_demangle_init_info (const char *mangled, int options, size_t len,
6167 struct d_info *di)
168d63e5 6168{
1b4974e7 6169 di->s = mangled;
2c0843db 6170 di->send = mangled + len;
1b4974e7 6171 di->options = options;
168d63e5 6172
1b4974e7 6173 di->n = mangled;
6174
6175 /* We can not need more components than twice the number of chars in
6176 the mangled string. Most components correspond directly to
6177 chars, but the ARGLIST types are exceptions. */
6178 di->num_comps = 2 * len;
1b4974e7 6179 di->next_comp = 0;
6180
6181 /* Similarly, we can not need more substitutions than there are
c1ea6f0c 6182 chars in the mangled string. */
6183 di->num_subs = len;
1b4974e7 6184 di->next_sub = 0;
6185
6186 di->last_name = NULL;
6187
2c0843db 6188 di->expansion = 0;
f89ffc3b 6189 di->is_expression = 0;
6190 di->is_conversion = 0;
168d63e5 6191}
6192
611fc3d0 6193/* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI
6194 mangled name, return strings in repeated callback giving the demangled
6195 name. OPTIONS is the usual libiberty demangler options. On success,
6196 this returns 1. On failure, returns 0. */
168d63e5 6197
611fc3d0 6198static int
6199d_demangle_callback (const char *mangled, int options,
6200 demangle_callbackref callback, void *opaque)
168d63e5 6201{
7ddff01e 6202 enum
6203 {
6204 DCT_TYPE,
6205 DCT_MANGLED,
6206 DCT_GLOBAL_CTORS,
6207 DCT_GLOBAL_DTORS
6208 }
6209 type;
1b4974e7 6210 struct d_info di;
f95cb811 6211 struct demangle_component *dc;
611fc3d0 6212 int status;
1b4974e7 6213
6214 if (mangled[0] == '_' && mangled[1] == 'Z')
7ddff01e 6215 type = DCT_MANGLED;
1b4974e7 6216 else if (strncmp (mangled, "_GLOBAL_", 8) == 0
6217 && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$')
6218 && (mangled[9] == 'D' || mangled[9] == 'I')
6219 && mangled[10] == '_')
7ddff01e 6220 type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS;
168d63e5 6221 else
6222 {
1b4974e7 6223 if ((options & DMGL_TYPES) == 0)
611fc3d0 6224 return 0;
7ddff01e 6225 type = DCT_TYPE;
168d63e5 6226 }
6227
611fc3d0 6228 cplus_demangle_init_info (mangled, options, strlen (mangled), &di);
140d75d7 6229
2c0843db 6230 {
6231#ifdef CP_DYNAMIC_ARRAYS
f95cb811 6232 __extension__ struct demangle_component comps[di.num_comps];
6233 __extension__ struct demangle_component *subs[di.num_subs];
2c0843db 6234
611fc3d0 6235 di.comps = comps;
6236 di.subs = subs;
2c0843db 6237#else
611fc3d0 6238 di.comps = alloca (di.num_comps * sizeof (*di.comps));
6239 di.subs = alloca (di.num_subs * sizeof (*di.subs));
2c0843db 6240#endif
6241
7ddff01e 6242 switch (type)
6243 {
6244 case DCT_TYPE:
6245 dc = cplus_demangle_type (&di);
6246 break;
6247 case DCT_MANGLED:
6248 dc = cplus_demangle_mangled_name (&di, 1);
6249 break;
6250 case DCT_GLOBAL_CTORS:
6251 case DCT_GLOBAL_DTORS:
6252 d_advance (&di, 11);
6253 dc = d_make_comp (&di,
6254 (type == DCT_GLOBAL_CTORS
6255 ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS
6256 : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS),
6400c038 6257 d_make_demangle_mangled_name (&di, d_str (&di)),
7ddff01e 6258 NULL);
6259 d_advance (&di, strlen (d_str (&di)));
6260 break;
91cb463c 6261 default:
6262 abort (); /* We have listed all the cases. */
7ddff01e 6263 }
1b4974e7 6264
2c0843db 6265 /* If DMGL_PARAMS is set, then if we didn't consume the entire
6266 mangled string, then we didn't successfully demangle it. If
6267 DMGL_PARAMS is not set, we didn't look at the trailing
6268 parameters. */
6269 if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0')
6270 dc = NULL;
72983aaa 6271
1b4974e7 6272#ifdef CP_DEMANGLE_DEBUG
611fc3d0 6273 d_dump (dc, 0);
1b4974e7 6274#endif
6275
611fc3d0 6276 status = (dc != NULL)
6277 ? cplus_demangle_print_callback (options, dc, callback, opaque)
6278 : 0;
6279 }
140d75d7 6280
611fc3d0 6281 return status;
6282}
140d75d7 6283
611fc3d0 6284/* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled
6285 name, return a buffer allocated with malloc holding the demangled
6286 name. OPTIONS is the usual libiberty demangler options. On
6287 success, this sets *PALC to the allocated size of the returned
6288 buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for
6289 a memory allocation failure, and returns NULL. */
2c0843db 6290
611fc3d0 6291static char *
6292d_demangle (const char *mangled, int options, size_t *palc)
6293{
6294 struct d_growable_string dgs;
6295 int status;
140d75d7 6296
611fc3d0 6297 d_growable_string_init (&dgs, 0);
6298
6299 status = d_demangle_callback (mangled, options,
6300 d_growable_string_callback_adapter, &dgs);
6301 if (status == 0)
6302 {
6303 free (dgs.buf);
6304 *palc = 0;
6305 return NULL;
6306 }
6307
db80fc3f 6308 *palc = dgs.allocation_failure ? 1 : dgs.alc;
611fc3d0 6309 return dgs.buf;
168d63e5 6310}
6311
5acfe29d 6312#if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
1b4974e7 6313
d94aaf66 6314extern char *__cxa_demangle (const char *, char *, size_t *, int *);
140d75d7 6315
1b4974e7 6316/* ia64 ABI-mandated entry point in the C++ runtime library for
6317 performing demangling. MANGLED_NAME is a NUL-terminated character
6318 string containing the name to be demangled.
140d75d7 6319
6320 OUTPUT_BUFFER is a region of memory, allocated with malloc, of
6321 *LENGTH bytes, into which the demangled name is stored. If
6322 OUTPUT_BUFFER is not long enough, it is expanded using realloc.
6323 OUTPUT_BUFFER may instead be NULL; in that case, the demangled name
1b4974e7 6324 is placed in a region of memory allocated with malloc.
140d75d7 6325
611fc3d0 6326 If LENGTH is non-NULL, the length of the buffer containing the
1b4974e7 6327 demangled name, is placed in *LENGTH.
140d75d7 6328
6329 The return value is a pointer to the start of the NUL-terminated
6330 demangled name, or NULL if the demangling fails. The caller is
1b4974e7 6331 responsible for deallocating this memory using free.
140d75d7 6332
6333 *STATUS is set to one of the following values:
6334 0: The demangling operation succeeded.
1b4974e7 6335 -1: A memory allocation failure occurred.
140d75d7 6336 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
6337 -3: One of the arguments is invalid.
6338
1b4974e7 6339 The demangling is performed using the C++ ABI mangling rules, with
140d75d7 6340 GNU extensions. */
6341
6342char *
d94aaf66 6343__cxa_demangle (const char *mangled_name, char *output_buffer,
6344 size_t *length, int *status)
140d75d7 6345{
1b4974e7 6346 char *demangled;
6347 size_t alc;
140d75d7 6348
1b4974e7 6349 if (mangled_name == NULL)
6350 {
dbe9febb 6351 if (status != NULL)
6352 *status = -3;
140d75d7 6353 return NULL;
6354 }
140d75d7 6355
1b4974e7 6356 if (output_buffer != NULL && length == NULL)
140d75d7 6357 {
dbe9febb 6358 if (status != NULL)
6359 *status = -3;
6360 return NULL;
6361 }
6362
d87adc77 6363 demangled = d_demangle (mangled_name, DMGL_PARAMS | DMGL_TYPES, &alc);
1b4974e7 6364
6365 if (demangled == NULL)
140d75d7 6366 {
dbe9febb 6367 if (status != NULL)
6368 {
6369 if (alc == 1)
6370 *status = -1;
6371 else
6372 *status = -2;
6373 }
140d75d7 6374 return NULL;
6375 }
1b4974e7 6376
6377 if (output_buffer == NULL)
6378 {
6379 if (length != NULL)
6380 *length = alc;
6381 }
140d75d7 6382 else
140d75d7 6383 {
1b4974e7 6384 if (strlen (demangled) < *length)
6385 {
6386 strcpy (output_buffer, demangled);
6387 free (demangled);
6388 demangled = output_buffer;
6389 }
6390 else
6391 {
6392 free (output_buffer);
6393 *length = alc;
6394 }
140d75d7 6395 }
1b4974e7 6396
dbe9febb 6397 if (status != NULL)
6398 *status = 0;
1b4974e7 6399
6400 return demangled;
140d75d7 6401}
6402
611fc3d0 6403extern int __gcclibcxx_demangle_callback (const char *,
6404 void (*)
6405 (const char *, size_t, void *),
6406 void *);
6407
6408/* Alternative, allocationless entry point in the C++ runtime library
6409 for performing demangling. MANGLED_NAME is a NUL-terminated character
6410 string containing the name to be demangled.
6411
6412 CALLBACK is a callback function, called with demangled string
6413 segments as demangling progresses; it is called at least once,
6414 but may be called more than once. OPAQUE is a generalized pointer
6415 used as a callback argument.
6416
6417 The return code is one of the following values, equivalent to
6418 the STATUS values of __cxa_demangle() (excluding -1, since this
6419 function performs no memory allocations):
6420 0: The demangling operation succeeded.
6421 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
6422 -3: One of the arguments is invalid.
6423
6424 The demangling is performed using the C++ ABI mangling rules, with
6425 GNU extensions. */
6426
6427int
6428__gcclibcxx_demangle_callback (const char *mangled_name,
6429 void (*callback) (const char *, size_t, void *),
6430 void *opaque)
6431{
6432 int status;
6433
6434 if (mangled_name == NULL || callback == NULL)
6435 return -3;
6436
6437 status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES,
6438 callback, opaque);
6439 if (status == 0)
6440 return -2;
6441
6442 return 0;
6443}
6444
5acfe29d 6445#else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */
140d75d7 6446
1b4974e7 6447/* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI
6448 mangled name, return a buffer allocated with malloc holding the
6449 demangled name. Otherwise, return NULL. */
168d63e5 6450
6451char *
611fc3d0 6452cplus_demangle_v3 (const char *mangled, int options)
168d63e5 6453{
1b4974e7 6454 size_t alc;
cf0ad6a8 6455
1b4974e7 6456 return d_demangle (mangled, options, &alc);
168d63e5 6457}
6458
611fc3d0 6459int
6460cplus_demangle_v3_callback (const char *mangled, int options,
6461 demangle_callbackref callback, void *opaque)
6462{
6463 return d_demangle_callback (mangled, options, callback, opaque);
6464}
6465
1c1033dd 6466/* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling
6467 conventions, but the output formatting is a little different.
611fc3d0 6468 This instructs the C++ demangler not to emit pointer characters ("*"), to
6469 use Java's namespace separator symbol ("." instead of "::"), and to output
6470 JArray<TYPE> as TYPE[]. */
1c1033dd 6471
6472char *
611fc3d0 6473java_demangle_v3 (const char *mangled)
1c1033dd 6474{
1b4974e7 6475 size_t alc;
1c1033dd 6476
611fc3d0 6477 return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, &alc);
6478}
87591c4a 6479
611fc3d0 6480int
6481java_demangle_v3_callback (const char *mangled,
6482 demangle_callbackref callback, void *opaque)
6483{
6484 return d_demangle_callback (mangled,
6485 DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX,
6486 callback, opaque);
1c1033dd 6487}
6488
5acfe29d 6489#endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */
140d75d7 6490
c62ef5b5 6491#ifndef IN_GLIBCPP_V3
1b4974e7 6492
6493/* Demangle a string in order to find out whether it is a constructor
6494 or destructor. Return non-zero on success. Set *CTOR_KIND and
6495 *DTOR_KIND appropriately. */
6496
6497static int
d94aaf66 6498is_ctor_or_dtor (const char *mangled,
6499 enum gnu_v3_ctor_kinds *ctor_kind,
6500 enum gnu_v3_dtor_kinds *dtor_kind)
3a18c9fc 6501{
1b4974e7 6502 struct d_info di;
f95cb811 6503 struct demangle_component *dc;
3c87c5c3 6504 int ret;
3a18c9fc 6505
1b4974e7 6506 *ctor_kind = (enum gnu_v3_ctor_kinds) 0;
6507 *dtor_kind = (enum gnu_v3_dtor_kinds) 0;
6508
f95cb811 6509 cplus_demangle_init_info (mangled, DMGL_GNU_V3, strlen (mangled), &di);
3a18c9fc 6510
2c0843db 6511 {
6512#ifdef CP_DYNAMIC_ARRAYS
f95cb811 6513 __extension__ struct demangle_component comps[di.num_comps];
6514 __extension__ struct demangle_component *subs[di.num_subs];
2c0843db 6515
611fc3d0 6516 di.comps = comps;
6517 di.subs = subs;
2c0843db 6518#else
611fc3d0 6519 di.comps = alloca (di.num_comps * sizeof (*di.comps));
6520 di.subs = alloca (di.num_subs * sizeof (*di.subs));
2c0843db 6521#endif
1b4974e7 6522
f95cb811 6523 dc = cplus_demangle_mangled_name (&di, 1);
08d5ae10 6524
2c0843db 6525 /* Note that because we did not pass DMGL_PARAMS, we don't expect
6526 to demangle the entire string. */
3a18c9fc 6527
2c0843db 6528 ret = 0;
6529 while (dc != NULL)
6530 {
6531 switch (dc->type)
6532 {
1189258f 6533 /* These cannot appear on a constructor or destructor. */
6534 case DEMANGLE_COMPONENT_RESTRICT_THIS:
6535 case DEMANGLE_COMPONENT_VOLATILE_THIS:
6536 case DEMANGLE_COMPONENT_CONST_THIS:
6537 case DEMANGLE_COMPONENT_REFERENCE_THIS:
6538 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
2c0843db 6539 default:
6540 dc = NULL;
6541 break;
f95cb811 6542 case DEMANGLE_COMPONENT_TYPED_NAME:
6543 case DEMANGLE_COMPONENT_TEMPLATE:
2c0843db 6544 dc = d_left (dc);
6545 break;
f95cb811 6546 case DEMANGLE_COMPONENT_QUAL_NAME:
6547 case DEMANGLE_COMPONENT_LOCAL_NAME:
2c0843db 6548 dc = d_right (dc);
6549 break;
f95cb811 6550 case DEMANGLE_COMPONENT_CTOR:
2c0843db 6551 *ctor_kind = dc->u.s_ctor.kind;
6552 ret = 1;
6553 dc = NULL;
6554 break;
f95cb811 6555 case DEMANGLE_COMPONENT_DTOR:
2c0843db 6556 *dtor_kind = dc->u.s_dtor.kind;
6557 ret = 1;
6558 dc = NULL;
6559 break;
6560 }
6561 }
2c0843db 6562 }
3c87c5c3 6563
6564 return ret;
3a18c9fc 6565}
6566
1b4974e7 6567/* Return whether NAME is the mangled form of a g++ V3 ABI constructor
6568 name. A non-zero return indicates the type of constructor. */
3a18c9fc 6569
3a18c9fc 6570enum gnu_v3_ctor_kinds
d94aaf66 6571is_gnu_v3_mangled_ctor (const char *name)
3a18c9fc 6572{
1b4974e7 6573 enum gnu_v3_ctor_kinds ctor_kind;
6574 enum gnu_v3_dtor_kinds dtor_kind;
3a18c9fc 6575
1b4974e7 6576 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
05455547 6577 return (enum gnu_v3_ctor_kinds) 0;
1b4974e7 6578 return ctor_kind;
3a18c9fc 6579}
6580
6581
1b4974e7 6582/* Return whether NAME is the mangled form of a g++ V3 ABI destructor
6583 name. A non-zero return indicates the type of destructor. */
6584
3a18c9fc 6585enum gnu_v3_dtor_kinds
d94aaf66 6586is_gnu_v3_mangled_dtor (const char *name)
3a18c9fc 6587{
1b4974e7 6588 enum gnu_v3_ctor_kinds ctor_kind;
6589 enum gnu_v3_dtor_kinds dtor_kind;
3a18c9fc 6590
1b4974e7 6591 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
05455547 6592 return (enum gnu_v3_dtor_kinds) 0;
1b4974e7 6593 return dtor_kind;
3a18c9fc 6594}
6595
1b4974e7 6596#endif /* IN_GLIBCPP_V3 */
3a18c9fc 6597
168d63e5 6598#ifdef STANDALONE_DEMANGLER
6599
6600#include "getopt.h"
1b4974e7 6601#include "dyn-string.h"
6602
320d4d0a 6603static void print_usage (FILE* fp, int exit_value);
168d63e5 6604
1b4974e7 6605#define IS_ALPHA(CHAR) \
6606 (((CHAR) >= 'a' && (CHAR) <= 'z') \
6607 || ((CHAR) >= 'A' && (CHAR) <= 'Z'))
168d63e5 6608
6609/* Non-zero if CHAR is a character than can occur in a mangled name. */
7ae7b54c 6610#define is_mangled_char(CHAR) \
40e00cb0 6611 (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \
6612 || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$')
168d63e5 6613
6614/* The name of this program, as invoked. */
6615const char* program_name;
6616
6617/* Prints usage summary to FP and then exits with EXIT_VALUE. */
6618
6619static void
d94aaf66 6620print_usage (FILE* fp, int exit_value)
168d63e5 6621{
6622 fprintf (fp, "Usage: %s [options] [names ...]\n", program_name);
62c2feed 6623 fprintf (fp, "Options:\n");
168d63e5 6624 fprintf (fp, " -h,--help Display this message.\n");
55faa696 6625 fprintf (fp, " -p,--no-params Don't display function parameters\n");
168d63e5 6626 fprintf (fp, " -v,--verbose Produce verbose demanglings.\n");
6627 fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n");
6628
6629 exit (exit_value);
6630}
6631
6632/* Option specification for getopt_long. */
c077395f 6633static const struct option long_options[] =
168d63e5 6634{
55faa696 6635 { "help", no_argument, NULL, 'h' },
6636 { "no-params", no_argument, NULL, 'p' },
6637 { "verbose", no_argument, NULL, 'v' },
6638 { NULL, no_argument, NULL, 0 },
168d63e5 6639};
6640
6641/* Main entry for a demangling filter executable. It will demangle
6642 its command line arguments, if any. If none are provided, it will
6643 filter stdin to stdout, replacing any recognized mangled C++ names
6644 with their demangled equivalents. */
6645
6646int
d94aaf66 6647main (int argc, char *argv[])
168d63e5 6648{
168d63e5 6649 int i;
6650 int opt_char;
1b4974e7 6651 int options = DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES;
168d63e5 6652
6653 /* Use the program name of this program, as invoked. */
6654 program_name = argv[0];
6655
6656 /* Parse options. */
6657 do
6658 {
55faa696 6659 opt_char = getopt_long (argc, argv, "hpv", long_options, NULL);
168d63e5 6660 switch (opt_char)
6661 {
6662 case '?': /* Unrecognized option. */
6663 print_usage (stderr, 1);
6664 break;
6665
6666 case 'h':
6667 print_usage (stdout, 0);
6668 break;
6669
55faa696 6670 case 'p':
6671 options &= ~ DMGL_PARAMS;
6672 break;
6673
168d63e5 6674 case 'v':
1b4974e7 6675 options |= DMGL_VERBOSE;
168d63e5 6676 break;
6677 }
6678 }
6679 while (opt_char != -1);
6680
6681 if (optind == argc)
6682 /* No command line arguments were provided. Filter stdin. */
6683 {
6684 dyn_string_t mangled = dyn_string_new (3);
1b4974e7 6685 char *s;
168d63e5 6686
6687 /* Read all of input. */
6688 while (!feof (stdin))
6689 {
1b4974e7 6690 char c;
168d63e5 6691
6692 /* Pile characters into mangled until we hit one that can't
6693 occur in a mangled name. */
6694 c = getchar ();
6695 while (!feof (stdin) && is_mangled_char (c))
6696 {
6697 dyn_string_append_char (mangled, c);
6698 if (feof (stdin))
6699 break;
6700 c = getchar ();
6701 }
6702
1b4974e7 6703 if (dyn_string_length (mangled) > 0)
140d75d7 6704 {
dbe9febb 6705#ifdef IN_GLIBCPP_V3
6706 s = __cxa_demangle (dyn_string_buf (mangled), NULL, NULL, NULL);
6707#else
1b4974e7 6708 s = cplus_demangle_v3 (dyn_string_buf (mangled), options);
dbe9febb 6709#endif
1b4974e7 6710
6711 if (s != NULL)
6712 {
6713 fputs (s, stdout);
6714 free (s);
6715 }
6716 else
6717 {
6718 /* It might not have been a mangled name. Print the
6719 original text. */
6720 fputs (dyn_string_buf (mangled), stdout);
6721 }
6722
6723 dyn_string_clear (mangled);
140d75d7 6724 }
168d63e5 6725
6726 /* If we haven't hit EOF yet, we've read one character that
6727 can't occur in a mangled name, so print it out. */
6728 if (!feof (stdin))
6729 putchar (c);
168d63e5 6730 }
6731
6732 dyn_string_delete (mangled);
168d63e5 6733 }
6734 else
6735 /* Demangle command line arguments. */
6736 {
168d63e5 6737 /* Loop over command line arguments. */
6738 for (i = optind; i < argc; ++i)
6739 {
1b4974e7 6740 char *s;
dbe9febb 6741#ifdef IN_GLIBCPP_V3
6742 int status;
6743#endif
1b4974e7 6744
168d63e5 6745 /* Attempt to demangle. */
dbe9febb 6746#ifdef IN_GLIBCPP_V3
6747 s = __cxa_demangle (argv[i], NULL, NULL, &status);
6748#else
1b4974e7 6749 s = cplus_demangle_v3 (argv[i], options);
dbe9febb 6750#endif
168d63e5 6751
6752 /* If it worked, print the demangled name. */
1b4974e7 6753 if (s != NULL)
140d75d7 6754 {
1b4974e7 6755 printf ("%s\n", s);
6756 free (s);
140d75d7 6757 }
1b4974e7 6758 else
dbe9febb 6759 {
6760#ifdef IN_GLIBCPP_V3
6761 fprintf (stderr, "Failed: %s (status %d)\n", argv[i], status);
6762#else
6763 fprintf (stderr, "Failed: %s\n", argv[i]);
6764#endif
6765 }
168d63e5 6766 }
168d63e5 6767 }
6768
6769 return 0;
6770}
6771
6772#endif /* STANDALONE_DEMANGLER */
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