]> git.ipfire.org Git - thirdparty/gcc.git/blame - libiberty/cp-demangle.c
projects / thirdparty / gcc.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Add a recursion limit to libiberty's demangling code. The limit is enabled by defaul...
[thirdparty/gcc.git] / libiberty / cp-demangle.c
CommitLineData
bd6946d1 1/* Demangler for g++ V3 ABI.
85ec4feb 2 Copyright (C) 2003-2018 Free Software Foundation, Inc.
bd6946d1 3 Written by Ian Lance Taylor <ian@wasabisystems.com>.
69afa80d 4
2b81b2c9 5 This file is part of the libiberty library, which is part of GCC.
759e8187 6
2b81b2c9 7 This file is free software; you can redistribute it and/or modify
69afa80d
AS		 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
b3dd43df
MM		 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
69afa80d
AS		 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
ee58dffd 28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
69afa80d
AS		 29*/
30
a51753e4
ILT		 31/* This code implements a demangler for the g++ V3 ABI. The ABI is
32 described on this web page:
b2353e59 33 https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling
a51753e4
ILT		 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)
456cc5cf
SB		 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)
a51753e4
ILT		 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
5e777af5
ILT		 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
456cc5cf 57 demangle_callbackref
5e777af5
ILT		 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
456cc5cf 64 cplus_demangle_print_callback
5e777af5
ILT		 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
a51753e4
ILT		 70 Preprocessor macros you can define while compiling this file:
71
72 IN_LIBGCC2
456cc5cf 73 If defined, this file defines the following functions, q.v.:
a51753e4
ILT		 74 char *__cxa_demangle (const char *mangled, char *buf, size_t *len,
75 int *status)
456cc5cf
SB		 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]().
a51753e4
ILT		 82
83 IN_GLIBCPP_V3
456cc5cf
SB		 84 If defined, this file defines only __cxa_demangle() and
85 __gcclibcxx_demangle_callback(), and no other publically visible
86 functions or variables.
a51753e4
ILT		 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.
76d96a5a
MM		 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. */
a51753e4 100
456cc5cf
SB		 101#if defined (_AIX) && !defined (__GNUC__)
102 #pragma alloca
103#endif
104
69afa80d
AS		 105#ifdef HAVE_CONFIG_H
106#include "config.h"
107#endif
108
bd6946d1 109#include <stdio.h>
8502a100 110
69afa80d
AS		 111#ifdef HAVE_STDLIB_H
112#include <stdlib.h>
113#endif
69afa80d
AS		 114#ifdef HAVE_STRING_H
115#include <string.h>
116#endif
117
456cc5cf
SB		 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
bfbc839a
MB		 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
69afa80d
AS		 137#include "ansidecl.h"
138#include "libiberty.h"
7eb23b1f 139#include "demangle.h"
5e777af5
ILT		 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
9486db4f 151static int d_fill_name (struct demangle_component *, const char *, int);
5e777af5
ILT		 152
153#define cplus_demangle_fill_extended_operator d_fill_extended_operator
154static int
9486db4f
GDR		 155d_fill_extended_operator (struct demangle_component *, int,
156 struct demangle_component *);
5e777af5
ILT		 157
158#define cplus_demangle_fill_ctor d_fill_ctor
159static int
9486db4f
GDR		 160d_fill_ctor (struct demangle_component *, enum gnu_v3_ctor_kinds,
161 struct demangle_component *);
5e777af5
ILT		 162
163#define cplus_demangle_fill_dtor d_fill_dtor
164static int
9486db4f
GDR		 165d_fill_dtor (struct demangle_component *, enum gnu_v3_dtor_kinds,
166 struct demangle_component *);
5e777af5
ILT		 167
168#define cplus_demangle_mangled_name d_mangled_name
9486db4f 169static struct demangle_component *d_mangled_name (struct d_info *, int);
5e777af5
ILT		 170
171#define cplus_demangle_type d_type
9486db4f 172static struct demangle_component *d_type (struct d_info *);
5e777af5
ILT		 173
174#define cplus_demangle_print d_print
a46586c3 175static char *d_print (int, struct demangle_component *, int, size_t *);
5e777af5 176
456cc5cf 177#define cplus_demangle_print_callback d_print_callback
a46586c3 178static int d_print_callback (int, struct demangle_component *,
456cc5cf
SB		 179 demangle_callbackref, void *);
180
5e777af5 181#define cplus_demangle_init_info d_init_info
9486db4f 182static void d_init_info (const char *, int, size_t, struct d_info *);
5e777af5
ILT		 183
184#else /* ! defined(IN_GLIBCPP_V3) */
185#define CP_STATIC_IF_GLIBCPP_V3
186#endif /* ! defined(IN_GLIBCPP_V3) */
69afa80d 187
2d6c4025
ILT		 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
a51753e4
ILT		 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.
bd6946d1 206
a51753e4 207 As of this writing this file has the following undefined references
456cc5cf
SB		 208 when compiled with -DIN_GLIBCPP_V3: realloc, free, memcpy, strcpy,
209 strcat, strlen. */
bd6946d1 210
bd6946d1 211#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
a51753e4
ILT		 212#define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z')
213#define IS_LOWER(c) ((c) >= 'a' && (c) <= 'z')
051664b0 214
31e0ab1f
AS		 215/* The prefix prepended by GCC to an identifier represnting the
216 anonymous namespace. */
217#define ANONYMOUS_NAMESPACE_PREFIX "_GLOBAL_"
bd6946d1
ILT		 218#define ANONYMOUS_NAMESPACE_PREFIX_LEN \
219 (sizeof (ANONYMOUS_NAMESPACE_PREFIX) - 1)
31e0ab1f 220
374caa50
ILT		 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;
2d6c4025
ILT		 229 /* The length of the simple expansion. */
230 int simple_len;
374caa50
ILT		 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;
2d6c4025
ILT		 234 /* The length of the full expansion. */
235 int full_len;
374caa50
ILT		 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;
2d6c4025
ILT		 240 /* The length of set_last_name. */
241 int set_last_name_len;
374caa50
ILT		 242};
243
5e777af5 244/* Accessors for subtrees of struct demangle_component. */
69afa80d 245
bd6946d1
ILT		 246#define d_left(dc) ((dc)->u.s_binary.left)
247#define d_right(dc) ((dc)->u.s_binary.right)
248
bd6946d1 249/* A list of templates. This is used while printing. */
69afa80d 250
bd6946d1
ILT		 251struct d_print_template
252{
253 /* Next template on the list. */
254 struct d_print_template *next;
255 /* This template. */
d7cf8390 256 const struct demangle_component *template_decl;
bd6946d1 257};
69afa80d 258
bd6946d1 259/* A list of type modifiers. This is used while printing. */
69afa80d 260
bd6946d1
ILT		 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. */
a46586c3 267 struct demangle_component *mod;
bd6946d1
ILT		 268 /* Whether this modifier was printed. */
269 int printed;
81dc098b
ILT		 270 /* The list of templates which applies to this modifier. */
271 struct d_print_template *templates;
bd6946d1 272};
69afa80d 273
456cc5cf 274/* We use these structures to hold information during printing. */
bd6946d1 275
456cc5cf 276struct d_growable_string
bd6946d1 277{
bd6946d1
ILT		 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;
456cc5cf
SB		 284 /* Set to 1 if we had a memory allocation failure. */
285 int allocation_failure;
286};
287
861c3495
GB		 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
c24d86bc
GB		 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
85d09f61
CC		 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;
85d09f61
CC		 319 int expansion;
320};
321
6b086d35
MW		 322/* Maximum number of times d_print_comp may be called recursively. */
323#define MAX_RECURSION_COUNT 1024
324
456cc5cf
SB		 325enum { D_PRINT_BUFFER_LENGTH = 256 };
326struct d_print_info
327{
456cc5cf
SB		 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;
bd6946d1
ILT		 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;
456cc5cf
SB		 345 /* Set to 1 if we saw a demangling error. */
346 int demangle_failure;
6b086d35
MW		 347 /* Number of times d_print_comp was recursively called. Should not
348 be bigger than MAX_RECURSION_COUNT. */
349 int recursion;
8e09a726
NS		 350 /* Non-zero if we're printing a lambda argument. A template
351 parameter reference actually means 'auto'. */
352 int is_lambda_arg;
38179091 353 /* The current index into any template argument packs we are using
7864eaaf 354 for printing, or -1 to print the whole pack. */
38179091 355 int pack_index;
9c4d7e52
JJ		 356 /* Number of d_print_flush calls so far. */
357 unsigned long int flush_count;
861c3495
GB		 358 /* Stack of components, innermost first, used to avoid loops. */
359 const struct d_component_stack *component_stack;
c24d86bc
GB		 360 /* Array of saved scopes for evaluating substitutions. */
361 struct d_saved_scope *saved_scopes;
0a15a50e
GB		 362 /* Index of the next unused saved scope in the above array. */
363 int next_saved_scope;
c24d86bc
GB		 364 /* Number of saved scopes in the above array. */
365 int num_saved_scopes;
0a15a50e
GB		 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;
85d09f61
CC		 372 /* The nearest enclosing template, if any. */
373 const struct demangle_component *current_template;
bd6946d1 374};
7dce2eff 375
69afa80d 376#ifdef CP_DEMANGLE_DEBUG
9486db4f 377static void d_dump (struct demangle_component *, int);
69afa80d 378#endif
5e777af5
ILT		 379
380static struct demangle_component *
9486db4f 381d_make_empty (struct d_info *);
5e777af5
ILT		 382
383static struct demangle_component *
9486db4f
GDR		 384d_make_comp (struct d_info *, enum demangle_component_type,
385 struct demangle_component *,
386 struct demangle_component *);
5e777af5
ILT		 387
388static struct demangle_component *
9486db4f 389d_make_name (struct d_info *, const char *, int);
5e777af5 390
431f321f
L		 391static struct demangle_component *
392d_make_demangle_mangled_name (struct d_info *, const char *);
393
5e777af5 394static struct demangle_component *
9486db4f
GDR		 395d_make_builtin_type (struct d_info *,
396 const struct demangle_builtin_type_info *);
5e777af5
ILT		 397
398static struct demangle_component *
9486db4f
GDR		 399d_make_operator (struct d_info *,
400 const struct demangle_operator_info *);
5e777af5
ILT		 401
402static struct demangle_component *
9486db4f
GDR		 403d_make_extended_operator (struct d_info *, int,
404 struct demangle_component *);
5e777af5
ILT		 405
406static struct demangle_component *
9486db4f
GDR		 407d_make_ctor (struct d_info *, enum gnu_v3_ctor_kinds,
408 struct demangle_component *);
5e777af5
ILT		 409
410static struct demangle_component *
9486db4f
GDR		 411d_make_dtor (struct d_info *, enum gnu_v3_dtor_kinds,
412 struct demangle_component *);
5e777af5
ILT		 413
414static struct demangle_component *
bfbc839a 415d_make_template_param (struct d_info *, int);
5e777af5
ILT		 416
417static struct demangle_component *
9486db4f 418d_make_sub (struct d_info *, const char *, int);
5e777af5
ILT		 419
420static int
9486db4f 421has_return_type (struct demangle_component *);
5e777af5
ILT		 422
423static int
9486db4f 424is_ctor_dtor_or_conversion (struct demangle_component *);
5e777af5 425
9486db4f 426static struct demangle_component *d_encoding (struct d_info *, int);
5e777af5 427
7cd7dbda 428static struct demangle_component *d_name (struct d_info *);
5e777af5 429
9486db4f 430static struct demangle_component *d_nested_name (struct d_info *);
5e777af5 431
9486db4f 432static struct demangle_component *d_prefix (struct d_info *);
5e777af5 433
9486db4f 434static struct demangle_component *d_unqualified_name (struct d_info *);
5e777af5 435
9486db4f 436static struct demangle_component *d_source_name (struct d_info *);
5e777af5 437
bfbc839a 438static int d_number (struct d_info *);
5e777af5 439
bfbc839a 440static struct demangle_component *d_identifier (struct d_info *, int);
5e777af5 441
9486db4f 442static struct demangle_component *d_operator_name (struct d_info *);
5e777af5 443
9486db4f 444static struct demangle_component *d_special_name (struct d_info *);
5e777af5 445
51dc6603
JM		 446static struct demangle_component *d_parmlist (struct d_info *);
447
9486db4f 448static int d_call_offset (struct d_info *, int);
5e777af5 449
9486db4f 450static struct demangle_component *d_ctor_dtor_name (struct d_info *);
5e777af5
ILT		 451
452static struct demangle_component **
9486db4f 453d_cv_qualifiers (struct d_info *, struct demangle_component **, int);
5e777af5 454
9eb85f27
JM		 455static struct demangle_component *
456d_ref_qualifier (struct d_info *, struct demangle_component *);
457
5e777af5 458static struct demangle_component *
9486db4f 459d_function_type (struct d_info *);
5e777af5
ILT		 460
461static struct demangle_component *
9486db4f 462d_bare_function_type (struct d_info *, int);
5e777af5
ILT		 463
464static struct demangle_component *
9486db4f 465d_class_enum_type (struct d_info *);
5e777af5 466
9486db4f 467static struct demangle_component *d_array_type (struct d_info *);
5e777af5 468
abfe01ce
JM		 469static struct demangle_component *d_vector_type (struct d_info *);
470
5e777af5 471static struct demangle_component *
9486db4f 472d_pointer_to_member_type (struct d_info *);
5e777af5
ILT		 473
474static struct demangle_component *
9486db4f 475d_template_param (struct d_info *);
5e777af5 476
9486db4f 477static struct demangle_component *d_template_args (struct d_info *);
34bbc4c5 478static struct demangle_component *d_template_args_1 (struct d_info *);
5e777af5
ILT		 479
480static struct demangle_component *
9486db4f 481d_template_arg (struct d_info *);
5e777af5 482
9486db4f 483static struct demangle_component *d_expression (struct d_info *);
5e777af5 484
9486db4f 485static struct demangle_component *d_expr_primary (struct d_info *);
5e777af5 486
7cd7dbda 487static struct demangle_component *d_local_name (struct d_info *);
5e777af5 488
9486db4f 489static int d_discriminator (struct d_info *);
5e777af5 490
d5f4eddd
JM		 491static struct demangle_component *d_lambda (struct d_info *);
492
493static struct demangle_component *d_unnamed_type (struct d_info *);
494
2d2b02c4
CC		 495static struct demangle_component *
496d_clone_suffix (struct d_info *, struct demangle_component *);
497
5e777af5 498static int
9486db4f 499d_add_substitution (struct d_info *, struct demangle_component *);
5e777af5 500
9486db4f 501static struct demangle_component *d_substitution (struct d_info *, int);
5e777af5 502
85d09f61
CC		 503static void d_checkpoint (struct d_info *, struct d_info_checkpoint *);
504
505static void d_backtrack (struct d_info *, struct d_info_checkpoint *);
506
456cc5cf 507static void d_growable_string_init (struct d_growable_string *, size_t);
5e777af5 508
456cc5cf
SB		 509static inline void
510d_growable_string_resize (struct d_growable_string *, size_t);
5e777af5 511
456cc5cf
SB		 512static inline void
513d_growable_string_append_buffer (struct d_growable_string *,
514 const char *, size_t);
5e777af5 515static void
456cc5cf
SB		 516d_growable_string_callback_adapter (const char *, size_t, void *);
517
518static void
0a15a50e
GB		 519d_print_init (struct d_print_info *, demangle_callbackref, void *,
520 const struct demangle_component *);
456cc5cf
SB		 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);
5e777af5 529
456cc5cf
SB		 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 *);
5e777af5
ILT		 536
537static void
a46586c3 538d_print_comp (struct d_print_info *, int, struct demangle_component *);
5e777af5
ILT		 539
540static void
9486db4f 541d_print_java_identifier (struct d_print_info *, const char *, int);
5e777af5
ILT		 542
543static void
743a99db 544d_print_mod_list (struct d_print_info *, int, struct d_print_mod *, int);
5e777af5
ILT		 545
546static void
a46586c3 547d_print_mod (struct d_print_info *, int, struct demangle_component *);
5e777af5
ILT		 548
549static void
743a99db 550d_print_function_type (struct d_print_info *, int,
a46586c3 551 struct demangle_component *,
9486db4f 552 struct d_print_mod *);
5e777af5
ILT		 553
554static void
743a99db 555d_print_array_type (struct d_print_info *, int,
a46586c3 556 struct demangle_component *,
9486db4f 557 struct d_print_mod *);
5e777af5
ILT		 558
559static void
a46586c3 560d_print_expr_op (struct d_print_info *, int, struct demangle_component *);
5e777af5 561
921da198 562static void d_print_cast (struct d_print_info *, int,
a46586c3 563 struct demangle_component *);
921da198 564static void d_print_conversion (struct d_print_info *, int,
a46586c3 565 struct demangle_component *);
5e777af5 566
456cc5cf
SB		 567static int d_demangle_callback (const char *, int,
568 demangle_callbackref, void *);
9486db4f 569static char *d_demangle (const char *, int, size_t *);
bd6946d1 570
51dc6603
JM		 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
9d89efeb
NS		 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
69afa80d 598#ifdef CP_DEMANGLE_DEBUG
bd6946d1
ILT		 599
600static void
9486db4f 601d_dump (struct demangle_component *dc, int indent)
69afa80d
AS		 602{
603 int i;
69afa80d 604
bd6946d1 605 if (dc == NULL)
456cc5cf
SB		 606 {
607 if (indent == 0)
608 printf ("failed demangling\n");
609 return;
610 }
bd6946d1
ILT		 611
612 for (i = 0; i < indent; ++i)
613 putchar (' ');
614
615 switch (dc->type)
616 {
5e777af5 617 case DEMANGLE_COMPONENT_NAME:
bd6946d1
ILT		 618 printf ("name '%.*s'\n", dc->u.s_name.len, dc->u.s_name.s);
619 return;
7dbb85a7
JM		 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;
5e777af5 625 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
bd6946d1
ILT		 626 printf ("template parameter %ld\n", dc->u.s_number.number);
627 return;
4be5c72c
JM		 628 case DEMANGLE_COMPONENT_TPARM_OBJ:
629 printf ("template parameter object\n");
630 break;
bc2eed9a
PA		 631 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
632 printf ("function parameter %ld\n", dc->u.s_number.number);
633 return;
5e777af5 634 case DEMANGLE_COMPONENT_CTOR:
bd6946d1
ILT		 635 printf ("constructor %d\n", (int) dc->u.s_ctor.kind);
636 d_dump (dc->u.s_ctor.name, indent + 2);
637 return;
5e777af5 638 case DEMANGLE_COMPONENT_DTOR:
bd6946d1
ILT		 639 printf ("destructor %d\n", (int) dc->u.s_dtor.kind);
640 d_dump (dc->u.s_dtor.name, indent + 2);
641 return;
5e777af5 642 case DEMANGLE_COMPONENT_SUB_STD:
bd6946d1
ILT		 643 printf ("standard substitution %s\n", dc->u.s_string.string);
644 return;
5e777af5 645 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
bd6946d1
ILT		 646 printf ("builtin type %s\n", dc->u.s_builtin.type->name);
647 return;
5e777af5 648 case DEMANGLE_COMPONENT_OPERATOR:
bd6946d1
ILT		 649 printf ("operator %s\n", dc->u.s_operator.op->name);
650 return;
5e777af5 651 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
bd6946d1
ILT		 652 printf ("extended operator with %d args\n",
653 dc->u.s_extended_operator.args);
654 d_dump (dc->u.s_extended_operator.name, indent + 2);
655 return;
656
5e777af5 657 case DEMANGLE_COMPONENT_QUAL_NAME:
bd6946d1
ILT		 658 printf ("qualified name\n");
659 break;
5e777af5 660 case DEMANGLE_COMPONENT_LOCAL_NAME:
a91d1af0
ILT		 661 printf ("local name\n");
662 break;
5e777af5 663 case DEMANGLE_COMPONENT_TYPED_NAME:
bd6946d1
ILT		 664 printf ("typed name\n");
665 break;
5e777af5 666 case DEMANGLE_COMPONENT_TEMPLATE:
bd6946d1
ILT		 667 printf ("template\n");
668 break;
5e777af5 669 case DEMANGLE_COMPONENT_VTABLE:
bd6946d1
ILT		 670 printf ("vtable\n");
671 break;
5e777af5 672 case DEMANGLE_COMPONENT_VTT:
bd6946d1
ILT		 673 printf ("VTT\n");
674 break;
5e777af5 675 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
bd6946d1
ILT		 676 printf ("construction vtable\n");
677 break;
5e777af5 678 case DEMANGLE_COMPONENT_TYPEINFO:
bd6946d1
ILT		 679 printf ("typeinfo\n");
680 break;
5e777af5 681 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
bd6946d1
ILT		 682 printf ("typeinfo name\n");
683 break;
5e777af5 684 case DEMANGLE_COMPONENT_TYPEINFO_FN:
bd6946d1
ILT		 685 printf ("typeinfo function\n");
686 break;
5e777af5 687 case DEMANGLE_COMPONENT_THUNK:
bd6946d1
ILT		 688 printf ("thunk\n");
689 break;
5e777af5 690 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
bd6946d1
ILT		 691 printf ("virtual thunk\n");
692 break;
5e777af5 693 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
bd6946d1
ILT		 694 printf ("covariant thunk\n");
695 break;
5e777af5 696 case DEMANGLE_COMPONENT_JAVA_CLASS:
bd6946d1
ILT		 697 printf ("java class\n");
698 break;
5e777af5 699 case DEMANGLE_COMPONENT_GUARD:
bd6946d1
ILT		 700 printf ("guard\n");
701 break;
5e777af5 702 case DEMANGLE_COMPONENT_REFTEMP:
bd6946d1
ILT		 703 printf ("reference temporary\n");
704 break;
15da2806
RH		 705 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
706 printf ("hidden alias\n");
707 break;
0a35513e
AH		 708 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
709 printf ("transaction clone\n");
710 break;
711 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
712 printf ("non-transaction clone\n");
713 break;
5e777af5 714 case DEMANGLE_COMPONENT_RESTRICT:
bd6946d1
ILT		 715 printf ("restrict\n");
716 break;
5e777af5 717 case DEMANGLE_COMPONENT_VOLATILE:
bd6946d1
ILT		 718 printf ("volatile\n");
719 break;
5e777af5 720 case DEMANGLE_COMPONENT_CONST:
bd6946d1
ILT		 721 printf ("const\n");
722 break;
5e777af5 723 case DEMANGLE_COMPONENT_RESTRICT_THIS:
a51753e4
ILT		 724 printf ("restrict this\n");
725 break;
5e777af5 726 case DEMANGLE_COMPONENT_VOLATILE_THIS:
a51753e4
ILT		 727 printf ("volatile this\n");
728 break;
5e777af5 729 case DEMANGLE_COMPONENT_CONST_THIS:
a51753e4
ILT		 730 printf ("const this\n");
731 break;
9eb85f27
JM		 732 case DEMANGLE_COMPONENT_REFERENCE_THIS:
733 printf ("reference this\n");
734 break;
735 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
736 printf ("rvalue reference this\n");
737 break;
b8fd7909
JM		 738 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
739 printf ("transaction_safe this\n");
740 break;
5e777af5 741 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
bd6946d1
ILT		 742 printf ("vendor type qualifier\n");
743 break;
5e777af5 744 case DEMANGLE_COMPONENT_POINTER:
bd6946d1
ILT		 745 printf ("pointer\n");
746 break;
5e777af5 747 case DEMANGLE_COMPONENT_REFERENCE:
bd6946d1
ILT		 748 printf ("reference\n");
749 break;
1ab28be5
DG		 750 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
751 printf ("rvalue reference\n");
752 break;
5e777af5 753 case DEMANGLE_COMPONENT_COMPLEX:
bd6946d1
ILT		 754 printf ("complex\n");
755 break;
5e777af5 756 case DEMANGLE_COMPONENT_IMAGINARY:
bd6946d1
ILT		 757 printf ("imaginary\n");
758 break;
5e777af5 759 case DEMANGLE_COMPONENT_VENDOR_TYPE:
bd6946d1
ILT		 760 printf ("vendor type\n");
761 break;
5e777af5 762 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
bd6946d1
ILT		 763 printf ("function type\n");
764 break;
5e777af5 765 case DEMANGLE_COMPONENT_ARRAY_TYPE:
bd6946d1
ILT		 766 printf ("array type\n");
767 break;
5e777af5 768 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
bd6946d1
ILT		 769 printf ("pointer to member type\n");
770 break;
07523e7c 771 case DEMANGLE_COMPONENT_FIXED_TYPE:
606f9e78
AB		 772 printf ("fixed-point type, accum? %d, sat? %d\n",
773 dc->u.s_fixed.accum, dc->u.s_fixed.sat);
76d96a5a 774 d_dump (dc->u.s_fixed.length, indent + 2);
07523e7c 775 break;
5e777af5 776 case DEMANGLE_COMPONENT_ARGLIST:
bd6946d1
ILT		 777 printf ("argument list\n");
778 break;
5e777af5 779 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
bd6946d1
ILT		 780 printf ("template argument list\n");
781 break;
4b6aaa99
JM		 782 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
783 printf ("initializer list\n");
784 break;
5e777af5 785 case DEMANGLE_COMPONENT_CAST:
bd6946d1
ILT		 786 printf ("cast\n");
787 break;
921da198
PA		 788 case DEMANGLE_COMPONENT_CONVERSION:
789 printf ("conversion operator\n");
790 break;
4b6aaa99
JM		 791 case DEMANGLE_COMPONENT_NULLARY:
792 printf ("nullary operator\n");
793 break;
5e777af5 794 case DEMANGLE_COMPONENT_UNARY:
bd6946d1
ILT		 795 printf ("unary operator\n");
796 break;
5e777af5 797 case DEMANGLE_COMPONENT_BINARY:
bd6946d1
ILT		 798 printf ("binary operator\n");
799 break;
5e777af5 800 case DEMANGLE_COMPONENT_BINARY_ARGS:
bd6946d1
ILT		 801 printf ("binary operator arguments\n");
802 break;
5e777af5 803 case DEMANGLE_COMPONENT_TRINARY:
bd6946d1
ILT		 804 printf ("trinary operator\n");
805 break;
5e777af5 806 case DEMANGLE_COMPONENT_TRINARY_ARG1:
bd6946d1
ILT		 807 printf ("trinary operator arguments 1\n");
808 break;
5e777af5 809 case DEMANGLE_COMPONENT_TRINARY_ARG2:
bd6946d1
ILT		 810 printf ("trinary operator arguments 1\n");
811 break;
5e777af5 812 case DEMANGLE_COMPONENT_LITERAL:
bd6946d1
ILT		 813 printf ("literal\n");
814 break;
5e777af5 815 case DEMANGLE_COMPONENT_LITERAL_NEG:
374caa50
ILT		 816 printf ("negative literal\n");
817 break;
e5df4fb1
DD		 818 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
819 printf ("java resource\n");
820 break;
821 case DEMANGLE_COMPONENT_COMPOUND_NAME:
822 printf ("compound name\n");
823 break;
824 case DEMANGLE_COMPONENT_CHARACTER:
825 printf ("character '%c'\n", dc->u.s_character.character);
826 return;
bc2eed9a
PA		 827 case DEMANGLE_COMPONENT_NUMBER:
828 printf ("number %ld\n", dc->u.s_number.number);
829 return;
5a3d7e74
JM		 830 case DEMANGLE_COMPONENT_DECLTYPE:
831 printf ("decltype\n");
832 break;
38179091
JM		 833 case DEMANGLE_COMPONENT_PACK_EXPANSION:
834 printf ("pack expansion\n");
835 break;
7c424acd
JM		 836 case DEMANGLE_COMPONENT_TLS_INIT:
837 printf ("tls init function\n");
838 break;
839 case DEMANGLE_COMPONENT_TLS_WRAPPER:
840 printf ("tls wrapper function\n");
841 break;
622aac0b
JM		 842 case DEMANGLE_COMPONENT_DEFAULT_ARG:
843 printf ("default argument %d\n", dc->u.s_unary_num.num);
844 d_dump (dc->u.s_unary_num.sub, indent+2);
845 return;
846 case DEMANGLE_COMPONENT_LAMBDA:
847 printf ("lambda %d\n", dc->u.s_unary_num.num);
848 d_dump (dc->u.s_unary_num.sub, indent+2);
849 return;
69afa80d
AS		 850 }
851
bd6946d1
ILT		 852 d_dump (d_left (dc), indent + 2);
853 d_dump (d_right (dc), indent + 2);
854}
855
856#endif /* CP_DEMANGLE_DEBUG */
857
5e777af5
ILT		 858/* Fill in a DEMANGLE_COMPONENT_NAME. */
859
860CP_STATIC_IF_GLIBCPP_V3
861int
9486db4f 862cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
5e777af5
ILT		 863{
864 if (p == NULL || s == NULL || len == 0)
865 return 0;
9905ca97 866 p->d_printing = 0;
5e777af5
ILT		 867 p->type = DEMANGLE_COMPONENT_NAME;
868 p->u.s_name.s = s;
869 p->u.s_name.len = len;
870 return 1;
871}
872
873/* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
874
875CP_STATIC_IF_GLIBCPP_V3
876int
9486db4f
GDR		 877cplus_demangle_fill_extended_operator (struct demangle_component *p, int args,
878 struct demangle_component *name)
5e777af5
ILT		 879{
880 if (p == NULL || args < 0 || name == NULL)
881 return 0;
9905ca97 882 p->d_printing = 0;
5e777af5
ILT		 883 p->type = DEMANGLE_COMPONENT_EXTENDED_OPERATOR;
884 p->u.s_extended_operator.args = args;
885 p->u.s_extended_operator.name = name;
886 return 1;
887}
888
889/* Fill in a DEMANGLE_COMPONENT_CTOR. */
890
891CP_STATIC_IF_GLIBCPP_V3
892int
9486db4f
GDR		 893cplus_demangle_fill_ctor (struct demangle_component *p,
894 enum gnu_v3_ctor_kinds kind,
895 struct demangle_component *name)
5e777af5
ILT		 896{
897 if (p == NULL
898 || name == NULL
7859dde7 899 || (int) kind < gnu_v3_complete_object_ctor
0a35513e 900 || (int) kind > gnu_v3_object_ctor_group)
5e777af5 901 return 0;
9905ca97 902 p->d_printing = 0;
5e777af5
ILT		 903 p->type = DEMANGLE_COMPONENT_CTOR;
904 p->u.s_ctor.kind = kind;
905 p->u.s_ctor.name = name;
906 return 1;
907}
908
909/* Fill in a DEMANGLE_COMPONENT_DTOR. */
910
911CP_STATIC_IF_GLIBCPP_V3
912int
9486db4f
GDR		 913cplus_demangle_fill_dtor (struct demangle_component *p,
914 enum gnu_v3_dtor_kinds kind,
915 struct demangle_component *name)
5e777af5
ILT		 916{
917 if (p == NULL
918 || name == NULL
7859dde7 919 || (int) kind < gnu_v3_deleting_dtor
0a35513e 920 || (int) kind > gnu_v3_object_dtor_group)
5e777af5 921 return 0;
9905ca97 922 p->d_printing = 0;
5e777af5
ILT		 923 p->type = DEMANGLE_COMPONENT_DTOR;
924 p->u.s_dtor.kind = kind;
925 p->u.s_dtor.name = name;
926 return 1;
927}
928
bd6946d1
ILT		 929/* Add a new component. */
930
5e777af5 931static struct demangle_component *
9486db4f 932d_make_empty (struct d_info *di)
bd6946d1 933{
5e777af5 934 struct demangle_component *p;
bd6946d1
ILT		 935
936 if (di->next_comp >= di->num_comps)
937 return NULL;
938 p = &di->comps[di->next_comp];
a46586c3 939 p->d_printing = 0;
bd6946d1
ILT		 940 ++di->next_comp;
941 return p;
942}
943
944/* Add a new generic component. */
945
5e777af5 946static struct demangle_component *
9486db4f
GDR		 947d_make_comp (struct d_info *di, enum demangle_component_type type,
948 struct demangle_component *left,
949 struct demangle_component *right)
bd6946d1 950{
5e777af5 951 struct demangle_component *p;
bd6946d1
ILT		 952
953 /* We check for errors here. A typical error would be a NULL return
81dc098b
ILT		 954 from a subroutine. We catch those here, and return NULL
955 upward. */
bd6946d1
ILT		 956 switch (type)
957 {
958 /* These types require two parameters. */
5e777af5
ILT		 959 case DEMANGLE_COMPONENT_QUAL_NAME:
960 case DEMANGLE_COMPONENT_LOCAL_NAME:
961 case DEMANGLE_COMPONENT_TYPED_NAME:
7dbb85a7 962 case DEMANGLE_COMPONENT_TAGGED_NAME:
5e777af5 963 case DEMANGLE_COMPONENT_TEMPLATE:
d4f3ce5c 964 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
5e777af5
ILT		 965 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
966 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
967 case DEMANGLE_COMPONENT_UNARY:
968 case DEMANGLE_COMPONENT_BINARY:
969 case DEMANGLE_COMPONENT_BINARY_ARGS:
970 case DEMANGLE_COMPONENT_TRINARY:
971 case DEMANGLE_COMPONENT_TRINARY_ARG1:
5e777af5
ILT		 972 case DEMANGLE_COMPONENT_LITERAL:
973 case DEMANGLE_COMPONENT_LITERAL_NEG:
e5df4fb1 974 case DEMANGLE_COMPONENT_COMPOUND_NAME:
abfe01ce 975 case DEMANGLE_COMPONENT_VECTOR_TYPE:
2d2b02c4 976 case DEMANGLE_COMPONENT_CLONE:
bd6946d1
ILT		 977 if (left == NULL || right == NULL)
978 return NULL;
979 break;
980
981 /* These types only require one parameter. */
5e777af5
ILT		 982 case DEMANGLE_COMPONENT_VTABLE:
983 case DEMANGLE_COMPONENT_VTT:
5e777af5
ILT		 984 case DEMANGLE_COMPONENT_TYPEINFO:
985 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
986 case DEMANGLE_COMPONENT_TYPEINFO_FN:
987 case DEMANGLE_COMPONENT_THUNK:
988 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
989 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
990 case DEMANGLE_COMPONENT_JAVA_CLASS:
991 case DEMANGLE_COMPONENT_GUARD:
7c424acd
JM		 992 case DEMANGLE_COMPONENT_TLS_INIT:
993 case DEMANGLE_COMPONENT_TLS_WRAPPER:
5e777af5 994 case DEMANGLE_COMPONENT_REFTEMP:
15da2806 995 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
0a35513e
AH		 996 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
997 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
5e777af5
ILT		 998 case DEMANGLE_COMPONENT_POINTER:
999 case DEMANGLE_COMPONENT_REFERENCE:
1ab28be5 1000 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5e777af5
ILT		 1001 case DEMANGLE_COMPONENT_COMPLEX:
1002 case DEMANGLE_COMPONENT_IMAGINARY:
1003 case DEMANGLE_COMPONENT_VENDOR_TYPE:
5e777af5 1004 case DEMANGLE_COMPONENT_CAST:
921da198 1005 case DEMANGLE_COMPONENT_CONVERSION:
e5df4fb1 1006 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
5a3d7e74 1007 case DEMANGLE_COMPONENT_DECLTYPE:
38179091 1008 case DEMANGLE_COMPONENT_PACK_EXPANSION:
23b1a789
JK		 1009 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
1010 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
4b6aaa99
JM		 1011 case DEMANGLE_COMPONENT_NULLARY:
1012 case DEMANGLE_COMPONENT_TRINARY_ARG2:
4be5c72c 1013 case DEMANGLE_COMPONENT_TPARM_OBJ:
bd6946d1
ILT		 1014 if (left == NULL)
1015 return NULL;
1016 break;
1017
1018 /* This needs a right parameter, but the left parameter can be
1019 empty. */
5e777af5 1020 case DEMANGLE_COMPONENT_ARRAY_TYPE:
4b6aaa99 1021 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
bd6946d1
ILT		 1022 if (right == NULL)
1023 return NULL;
1024 break;
1025
1026 /* These are allowed to have no parameters--in some cases they
1027 will be filled in later. */
5e777af5
ILT		 1028 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
1029 case DEMANGLE_COMPONENT_RESTRICT:
1030 case DEMANGLE_COMPONENT_VOLATILE:
1031 case DEMANGLE_COMPONENT_CONST:
38179091
JM		 1032 case DEMANGLE_COMPONENT_ARGLIST:
1033 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
51dc6603 1034 FNQUAL_COMPONENT_CASE:
bd6946d1
ILT		 1035 break;
1036
1037 /* Other types should not be seen here. */
1038 default:
1039 return NULL;
69afa80d 1040 }
bd6946d1 1041
5e777af5 1042 p = d_make_empty (di);
bd6946d1 1043 if (p != NULL)
69afa80d 1044 {
5e777af5 1045 p->type = type;
bd6946d1
ILT		 1046 p->u.s_binary.left = left;
1047 p->u.s_binary.right = right;
69afa80d 1048 }
bd6946d1
ILT		 1049 return p;
1050}
69afa80d 1051
431f321f
L		 1052/* Add a new demangle mangled name component. */
1053
1054static struct demangle_component *
1055d_make_demangle_mangled_name (struct d_info *di, const char *s)
1056{
1057 if (d_peek_char (di) != '_' || d_peek_next_char (di) != 'Z')
1058 return d_make_name (di, s, strlen (s));
1059 d_advance (di, 2);
1060 return d_encoding (di, 0);
1061}
1062
bd6946d1 1063/* Add a new name component. */
051664b0 1064
5e777af5 1065static struct demangle_component *
9486db4f 1066d_make_name (struct d_info *di, const char *s, int len)
bd6946d1 1067{
5e777af5 1068 struct demangle_component *p;
051664b0 1069
5e777af5
ILT		 1070 p = d_make_empty (di);
1071 if (! cplus_demangle_fill_name (p, s, len))
a51753e4 1072 return NULL;
bd6946d1 1073 return p;
69afa80d
AS		 1074}
1075
bd6946d1 1076/* Add a new builtin type component. */
69afa80d 1077
5e777af5 1078static struct demangle_component *
9486db4f
GDR		 1079d_make_builtin_type (struct d_info *di,
1080 const struct demangle_builtin_type_info *type)
69afa80d 1081{
5e777af5 1082 struct demangle_component *p;
bd6946d1 1083
81dc098b
ILT		 1084 if (type == NULL)
1085 return NULL;
5e777af5 1086 p = d_make_empty (di);
bd6946d1 1087 if (p != NULL)
5e777af5
ILT		 1088 {
1089 p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
1090 p->u.s_builtin.type = type;
1091 }
bd6946d1
ILT		 1092 return p;
1093}
69afa80d 1094
bd6946d1 1095/* Add a new operator component. */
69afa80d 1096
5e777af5 1097static struct demangle_component *
9486db4f 1098d_make_operator (struct d_info *di, const struct demangle_operator_info *op)
69afa80d 1099{
5e777af5 1100 struct demangle_component *p;
bd6946d1 1101
5e777af5 1102 p = d_make_empty (di);
bd6946d1 1103 if (p != NULL)
5e777af5
ILT		 1104 {
1105 p->type = DEMANGLE_COMPONENT_OPERATOR;
1106 p->u.s_operator.op = op;
1107 }
bd6946d1 1108 return p;
69afa80d
AS		 1109}
1110
bd6946d1 1111/* Add a new extended operator component. */
69afa80d 1112
5e777af5 1113static struct demangle_component *
9486db4f
GDR		 1114d_make_extended_operator (struct d_info *di, int args,
1115 struct demangle_component *name)
69afa80d 1116{
5e777af5 1117 struct demangle_component *p;
051664b0 1118
5e777af5
ILT		 1119 p = d_make_empty (di);
1120 if (! cplus_demangle_fill_extended_operator (p, args, name))
81dc098b 1121 return NULL;
bd6946d1 1122 return p;
69afa80d
AS		 1123}
1124
d5f4eddd
JM		 1125static struct demangle_component *
1126d_make_default_arg (struct d_info *di, int num,
1127 struct demangle_component *sub)
1128{
1129 struct demangle_component *p = d_make_empty (di);
1130 if (p)
1131 {
1132 p->type = DEMANGLE_COMPONENT_DEFAULT_ARG;
1133 p->u.s_unary_num.num = num;
1134 p->u.s_unary_num.sub = sub;
1135 }
1136 return p;
1137}
1138
bd6946d1 1139/* Add a new constructor component. */
69afa80d 1140
5e777af5 1141static struct demangle_component *
9486db4f
GDR		 1142d_make_ctor (struct d_info *di, enum gnu_v3_ctor_kinds kind,
1143 struct demangle_component *name)
69afa80d 1144{
5e777af5 1145 struct demangle_component *p;
bd6946d1 1146
5e777af5
ILT		 1147 p = d_make_empty (di);
1148 if (! cplus_demangle_fill_ctor (p, kind, name))
81dc098b 1149 return NULL;
bd6946d1 1150 return p;
69afa80d
AS		 1151}
1152
bd6946d1 1153/* Add a new destructor component. */
69afa80d 1154
5e777af5 1155static struct demangle_component *
9486db4f
GDR		 1156d_make_dtor (struct d_info *di, enum gnu_v3_dtor_kinds kind,
1157 struct demangle_component *name)
69afa80d 1158{
5e777af5 1159 struct demangle_component *p;
bd6946d1 1160
5e777af5
ILT		 1161 p = d_make_empty (di);
1162 if (! cplus_demangle_fill_dtor (p, kind, name))
81dc098b 1163 return NULL;
bd6946d1 1164 return p;
69afa80d
AS		 1165}
1166
bd6946d1 1167/* Add a new template parameter. */
0870bfd6 1168
5e777af5 1169static struct demangle_component *
bfbc839a 1170d_make_template_param (struct d_info *di, int i)
0870bfd6 1171{
5e777af5 1172 struct demangle_component *p;
bd6946d1 1173
5e777af5 1174 p = d_make_empty (di);
bd6946d1 1175 if (p != NULL)
5e777af5
ILT		 1176 {
1177 p->type = DEMANGLE_COMPONENT_TEMPLATE_PARAM;
1178 p->u.s_number.number = i;
1179 }
bd6946d1 1180 return p;
0870bfd6
AS		 1181}
1182
448545cb
JM		 1183/* Add a new function parameter. */
1184
1185static struct demangle_component *
bfbc839a 1186d_make_function_param (struct d_info *di, int i)
448545cb
JM		 1187{
1188 struct demangle_component *p;
1189
1190 p = d_make_empty (di);
1191 if (p != NULL)
1192 {
1193 p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM;
1194 p->u.s_number.number = i;
1195 }
1196 return p;
1197}
1198
bd6946d1 1199/* Add a new standard substitution component. */
0870bfd6 1200
5e777af5 1201static struct demangle_component *
9486db4f 1202d_make_sub (struct d_info *di, const char *name, int len)
0870bfd6 1203{
5e777af5 1204 struct demangle_component *p;
bd6946d1 1205
5e777af5 1206 p = d_make_empty (di);
bd6946d1 1207 if (p != NULL)
2d6c4025 1208 {
5e777af5 1209 p->type = DEMANGLE_COMPONENT_SUB_STD;
2d6c4025
ILT		 1210 p->u.s_string.string = name;
1211 p->u.s_string.len = len;
1212 }
bd6946d1 1213 return p;
0870bfd6
AS		 1214}
1215
2d2b02c4 1216/* <mangled-name> ::= _Z <encoding> [<clone-suffix>]*
81dc098b
ILT		 1217
1218 TOP_LEVEL is non-zero when called at the top level. */
0870bfd6 1219
5e777af5
ILT		 1220CP_STATIC_IF_GLIBCPP_V3
1221struct demangle_component *
9486db4f 1222cplus_demangle_mangled_name (struct d_info *di, int top_level)
0870bfd6 1223{
2d2b02c4
CC		 1224 struct demangle_component *p;
1225
448545cb
JM		 1226 if (! d_check_char (di, '_')
1227 /* Allow missing _ if not at toplevel to work around a
1228 bug in G++ abi-version=2 mangling; see the comment in
1229 write_template_arg. */
1230 && top_level)
bd6946d1 1231 return NULL;
5165f125 1232 if (! d_check_char (di, 'Z'))
bd6946d1 1233 return NULL;
2d2b02c4
CC		 1234 p = d_encoding (di, top_level);
1235
1236 /* If at top level and parsing parameters, check for a clone
1237 suffix. */
1238 if (top_level && (di->options & DMGL_PARAMS) != 0)
1239 while (d_peek_char (di) == '.'
1240 && (IS_LOWER (d_peek_next_char (di))
1241 || d_peek_next_char (di) == '_'
1242 || IS_DIGIT (d_peek_next_char (di))))
1243 p = d_clone_suffix (di, p);
1244
1245 return p;
0870bfd6
AS		 1246}
1247
bd6946d1
ILT		 1248/* Return whether a function should have a return type. The argument
1249 is the function name, which may be qualified in various ways. The
1250 rules are that template functions have return types with some
1251 exceptions, function types which are not part of a function name
1252 mangling have return types with some exceptions, and non-template
1253 function names do not have return types. The exceptions are that
1254 constructors, destructors, and conversion operators do not have
1255 return types. */
0870bfd6
AS		 1256
1257static int
9486db4f 1258has_return_type (struct demangle_component *dc)
0870bfd6 1259{
bd6946d1
ILT		 1260 if (dc == NULL)
1261 return 0;
1262 switch (dc->type)
1263 {
1264 default:
1265 return 0;
7cd7dbda
NS		 1266 case DEMANGLE_COMPONENT_LOCAL_NAME:
1267 return has_return_type (d_right (dc));
5e777af5 1268 case DEMANGLE_COMPONENT_TEMPLATE:
bd6946d1 1269 return ! is_ctor_dtor_or_conversion (d_left (dc));
51dc6603 1270 FNQUAL_COMPONENT_CASE:
0ba5c8a2 1271 return has_return_type (d_left (dc));
bd6946d1 1272 }
0870bfd6
AS		 1273}
1274
bd6946d1
ILT		 1275/* Return whether a name is a constructor, a destructor, or a
1276 conversion operator. */
69afa80d
AS		 1277
1278static int
9486db4f 1279is_ctor_dtor_or_conversion (struct demangle_component *dc)
69afa80d 1280{
bd6946d1
ILT		 1281 if (dc == NULL)
1282 return 0;
1283 switch (dc->type)
1284 {
1285 default:
1286 return 0;
5e777af5
ILT		 1287 case DEMANGLE_COMPONENT_QUAL_NAME:
1288 case DEMANGLE_COMPONENT_LOCAL_NAME:
bd6946d1 1289 return is_ctor_dtor_or_conversion (d_right (dc));
5e777af5
ILT		 1290 case DEMANGLE_COMPONENT_CTOR:
1291 case DEMANGLE_COMPONENT_DTOR:
921da198 1292 case DEMANGLE_COMPONENT_CONVERSION:
bd6946d1
ILT		 1293 return 1;
1294 }
69afa80d
AS		 1295}
1296
bd6946d1
ILT		 1297/* <encoding> ::= <(function) name> <bare-function-type>
1298 ::= <(data) name>
ad07f5e5
ILT		 1299 ::= <special-name>
1300
1301 TOP_LEVEL is non-zero when called at the top level, in which case
1302 if DMGL_PARAMS is not set we do not demangle the function
1303 parameters. We only set this at the top level, because otherwise
1304 we would not correctly demangle names in local scopes. */
69afa80d 1305
5e777af5 1306static struct demangle_component *
9486db4f 1307d_encoding (struct d_info *di, int top_level)
69afa80d 1308{
bd6946d1 1309 char peek = d_peek_char (di);
7cd7dbda 1310 struct demangle_component *dc;
051664b0 1311
bd6946d1 1312 if (peek == 'G' || peek == 'T')
7cd7dbda 1313 dc = d_special_name (di);
bd6946d1 1314 else
051664b0 1315 {
7cd7dbda 1316 dc = d_name (di);
81dc098b 1317
7cd7dbda
NS		 1318 if (!dc)
1319 /* Failed already. */;
1320 else if (top_level && (di->options & DMGL_PARAMS) == 0)
81dc098b
ILT		 1321 {
1322 /* Strip off any initial CV-qualifiers, as they really apply
1323 to the `this' parameter, and they were not output by the
1324 v2 demangler without DMGL_PARAMS. */
7cd7dbda 1325 while (is_fnqual_component_type (dc->type))
81dc098b 1326 dc = d_left (dc);
e4796f1c 1327
5e777af5 1328 /* If the top level is a DEMANGLE_COMPONENT_LOCAL_NAME, then
51dc6603 1329 there may be function-qualifiers on its right argument which
5e777af5
ILT		 1330 really apply here; this happens when parsing a class
1331 which is local to a function. */
1332 if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
7cd7dbda
NS		 1333 while (is_fnqual_component_type (d_right (dc)->type))
1334 d_right (dc) = d_left (d_right (dc));
1335 }
1336 else
1337 {
1338 peek = d_peek_char (di);
1339 if (peek != '\0' && peek != 'E')
e4796f1c 1340 {
7cd7dbda 1341 struct demangle_component *ftype;
e4796f1c 1342
7cd7dbda
NS		 1343 ftype = d_bare_function_type (di, has_return_type (dc));
1344 if (ftype)
68aac47f
NS		 1345 {
1346 /* If this is a non-top-level local-name, clear the
1347 return type, so it doesn't confuse the user by
1348 being confused with the return type of whaever
1349 this is nested within. */
1350 if (!top_level && dc->type == DEMANGLE_COMPONENT_LOCAL_NAME
1351 && ftype->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
1352 d_left (ftype) = NULL;
1353
1354 dc = d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME,
1355 dc, ftype);
1356 }
7cd7dbda
NS		 1357 else
1358 dc = NULL;
1359 }
81dc098b 1360 }
051664b0 1361 }
7cd7dbda
NS		 1362
1363 return dc;
bd6946d1
ILT		 1364}
1365
7dbb85a7
JM		 1366/* <tagged-name> ::= <name> B <source-name> */
1367
1368static struct demangle_component *
1369d_abi_tags (struct d_info *di, struct demangle_component *dc)
1370{
68bac640 1371 struct demangle_component *hold_last_name;
7dbb85a7 1372 char peek;
68bac640
ILT		 1373
1374 /* Preserve the last name, so the ABI tag doesn't clobber it. */
1375 hold_last_name = di->last_name;
1376
7dbb85a7
JM		 1377 while (peek = d_peek_char (di),
1378 peek == 'B')
1379 {
1380 struct demangle_component *tag;
1381 d_advance (di, 1);
1382 tag = d_source_name (di);
1383 dc = d_make_comp (di, DEMANGLE_COMPONENT_TAGGED_NAME, dc, tag);
1384 }
68bac640
ILT		 1385
1386 di->last_name = hold_last_name;
1387
7dbb85a7
JM		 1388 return dc;
1389}
1390
bd6946d1
ILT		 1391/* <name> ::= <nested-name>
1392 ::= <unscoped-name>
1393 ::= <unscoped-template-name> <template-args>
1394 ::= <local-name>
1395
1396 <unscoped-name> ::= <unqualified-name>
1397 ::= St <unqualified-name>
69afa80d 1398
bd6946d1
ILT		 1399 <unscoped-template-name> ::= <unscoped-name>
1400 ::= <substitution>
1401*/
1402
5e777af5 1403static struct demangle_component *
7cd7dbda 1404d_name (struct d_info *di)
bd6946d1
ILT		 1405{
1406 char peek = d_peek_char (di);
5e777af5 1407 struct demangle_component *dc;
bd6946d1
ILT		 1408
1409 switch (peek)
69afa80d 1410 {
bd6946d1 1411 case 'N':
c61e8502 1412 return d_nested_name (di);
bd6946d1
ILT		 1413
1414 case 'Z':
7cd7dbda 1415 return d_local_name (di);
bd6946d1 1416
d5f4eddd 1417 case 'U':
c61e8502 1418 return d_unqualified_name (di);
d5f4eddd 1419
bd6946d1
ILT		 1420 case 'S':
1421 {
1422 int subst;
1423
1424 if (d_peek_next_char (di) != 't')
1425 {
374caa50 1426 dc = d_substitution (di, 0);
bd6946d1
ILT		 1427 subst = 1;
1428 }
1429 else
1430 {
1431 d_advance (di, 2);
5e777af5
ILT		 1432 dc = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME,
1433 d_make_name (di, "std", 3),
bd6946d1 1434 d_unqualified_name (di));
2d6c4025 1435 di->expansion += 3;
bd6946d1
ILT		 1436 subst = 0;
1437 }
1438
1439 if (d_peek_char (di) != 'I')
1440 {
1441 /* The grammar does not permit this case to occur if we
1442 called d_substitution() above (i.e., subst == 1). We
1443 don't bother to check. */
1444 }
1445 else
1446 {
1447 /* This is <template-args>, which means that we just saw
1448 <unscoped-template-name>, which is a substitution
1449 candidate if we didn't just get it from a
1450 substitution. */
1451 if (! subst)
1452 {
1453 if (! d_add_substitution (di, dc))
1454 return NULL;
1455 }
5e777af5
ILT		 1456 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1457 d_template_args (di));
bd6946d1
ILT		 1458 }
1459
c61e8502 1460 return dc;
bd6946d1
ILT		 1461 }
1462
ea0882a0 1463 case 'L':
bd6946d1
ILT		 1464 default:
1465 dc = d_unqualified_name (di);
1466 if (d_peek_char (di) == 'I')
051664b0 1467 {
bd6946d1
ILT		 1468 /* This is <template-args>, which means that we just saw
1469 <unscoped-template-name>, which is a substitution
1470 candidate. */
1471 if (! d_add_substitution (di, dc))
1472 return NULL;
5e777af5
ILT		 1473 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1474 d_template_args (di));
051664b0 1475 }
c61e8502 1476 return dc;
69afa80d 1477 }
bd6946d1 1478}
69afa80d 1479
9eb85f27
JM		 1480/* <nested-name> ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E
1481 ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix> <template-args> E
bd6946d1 1482*/
69afa80d 1483
5e777af5 1484static struct demangle_component *
9486db4f 1485d_nested_name (struct d_info *di)
bd6946d1 1486{
5e777af5
ILT		 1487 struct demangle_component *ret;
1488 struct demangle_component **pret;
9eb85f27 1489 struct demangle_component *rqual;
051664b0 1490
5165f125 1491 if (! d_check_char (di, 'N'))
bd6946d1 1492 return NULL;
69afa80d 1493
a51753e4 1494 pret = d_cv_qualifiers (di, &ret, 1);
bd6946d1
ILT		 1495 if (pret == NULL)
1496 return NULL;
1497
9eb85f27
JM		 1498 /* Parse the ref-qualifier now and then attach it
1499 once we have something to attach it to. */
1500 rqual = d_ref_qualifier (di, NULL);
1501
bd6946d1
ILT		 1502 *pret = d_prefix (di);
1503 if (*pret == NULL)
1504 return NULL;
69afa80d 1505
9eb85f27
JM		 1506 if (rqual)
1507 {
1508 d_left (rqual) = ret;
1509 ret = rqual;
1510 }
1511
5165f125 1512 if (! d_check_char (di, 'E'))
69afa80d
AS		 1513 return NULL;
1514
bd6946d1 1515 return ret;
69afa80d
AS		 1516}
1517
bd6946d1
ILT		 1518/* <prefix> ::= <prefix> <unqualified-name>
1519 ::= <template-prefix> <template-args>
1520 ::= <template-param>
4bbff96e 1521 ::= <decltype>
bd6946d1
ILT		 1522 ::=
1523 ::= <substitution>
69afa80d 1524
bd6946d1
ILT		 1525 <template-prefix> ::= <prefix> <(template) unqualified-name>
1526 ::= <template-param>
1527 ::= <substitution>
1528*/
1529
5e777af5 1530static struct demangle_component *
9486db4f 1531d_prefix (struct d_info *di)
69afa80d 1532{
5e777af5 1533 struct demangle_component *ret = NULL;
69afa80d 1534
bd6946d1 1535 while (1)
69afa80d 1536 {
bd6946d1 1537 char peek;
5e777af5
ILT		 1538 enum demangle_component_type comb_type;
1539 struct demangle_component *dc;
bd6946d1
ILT		 1540
1541 peek = d_peek_char (di);
1542 if (peek == '\0')
1543 return NULL;
1544
1545 /* The older code accepts a <local-name> here, but I don't see
1546 that in the grammar. The older code does not accept a
1547 <template-param> here. */
69afa80d 1548
5e777af5 1549 comb_type = DEMANGLE_COMPONENT_QUAL_NAME;
4bbff96e
JM		 1550 if (peek == 'D')
1551 {
1552 char peek2 = d_peek_next_char (di);
1553 if (peek2 == 'T' || peek2 == 't')
1554 /* Decltype. */
1555 dc = cplus_demangle_type (di);
1556 else
1557 /* Destructor name. */
1558 dc = d_unqualified_name (di);
1559 }
1560 else if (IS_DIGIT (peek)
a51753e4 1561 || IS_LOWER (peek)
bd6946d1 1562 || peek == 'C'
d5f4eddd 1563 || peek == 'U'
a2aa65f0 1564 || peek == 'L')
bd6946d1
ILT		 1565 dc = d_unqualified_name (di);
1566 else if (peek == 'S')
374caa50 1567 dc = d_substitution (di, 1);
bd6946d1
ILT		 1568 else if (peek == 'I')
1569 {
1570 if (ret == NULL)
1571 return NULL;
5e777af5 1572 comb_type = DEMANGLE_COMPONENT_TEMPLATE;
bd6946d1
ILT		 1573 dc = d_template_args (di);
1574 }
1575 else if (peek == 'T')
1576 dc = d_template_param (di);
1577 else if (peek == 'E')
1578 return ret;
d5f4eddd
JM		 1579 else if (peek == 'M')
1580 {
1581 /* Initializer scope for a lambda. We don't need to represent
1582 this; the normal code will just treat the variable as a type
1583 scope, which gives appropriate output. */
1584 if (ret == NULL)
1585 return NULL;
1586 d_advance (di, 1);
1587 continue;
1588 }
bd6946d1
ILT		 1589 else
1590 return NULL;
1591
1592 if (ret == NULL)
1593 ret = dc;
69afa80d 1594 else
bd6946d1
ILT		 1595 ret = d_make_comp (di, comb_type, ret, dc);
1596
1597 if (peek != 'S' && d_peek_char (di) != 'E')
1598 {
1599 if (! d_add_substitution (di, ret))
1600 return NULL;
1601 }
69afa80d
AS		 1602 }
1603}
1604
bd6946d1
ILT		 1605/* <unqualified-name> ::= <operator-name>
1606 ::= <ctor-dtor-name>
1607 ::= <source-name>
a2aa65f0
GK		 1608 ::= <local-source-name>
1609
1610 <local-source-name> ::= L <source-name> <discriminator>
bd6946d1 1611*/
69afa80d 1612
5e777af5 1613static struct demangle_component *
9486db4f 1614d_unqualified_name (struct d_info *di)
69afa80d 1615{
c61e8502 1616 struct demangle_component *ret;
bd6946d1
ILT		 1617 char peek;
1618
1619 peek = d_peek_char (di);
1620 if (IS_DIGIT (peek))
c61e8502 1621 ret = d_source_name (di);
a51753e4 1622 else if (IS_LOWER (peek))
2d6c4025 1623 {
4bbc35f3
MT		 1624 if (peek == 'o' && d_peek_next_char (di) == 'n')
1625 d_advance (di, 2);
2d6c4025 1626 ret = d_operator_name (di);
5e777af5 1627 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR)
c93ea196
JM		 1628 {
1629 di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2;
1630 if (!strcmp (ret->u.s_operator.op->code, "li"))
1631 ret = d_make_comp (di, DEMANGLE_COMPONENT_UNARY, ret,
1632 d_source_name (di));
1633 }
2d6c4025 1634 }
bd6946d1 1635 else if (peek == 'C' || peek == 'D')
c61e8502 1636 ret = d_ctor_dtor_name (di);
a2aa65f0
GK		 1637 else if (peek == 'L')
1638 {
a2aa65f0
GK		 1639 d_advance (di, 1);
1640
1641 ret = d_source_name (di);
1642 if (ret == NULL)
1643 return NULL;
1644 if (! d_discriminator (di))
1645 return NULL;
a2aa65f0 1646 }
d5f4eddd
JM		 1647 else if (peek == 'U')
1648 {
1649 switch (d_peek_next_char (di))
1650 {
1651 case 'l':
c61e8502
JM		 1652 ret = d_lambda (di);
1653 break;
d5f4eddd 1654 case 't':
c61e8502
JM		 1655 ret = d_unnamed_type (di);
1656 break;
d5f4eddd
JM		 1657 default:
1658 return NULL;
1659 }
1660 }
bd6946d1 1661 else
051664b0 1662 return NULL;
c61e8502
JM		 1663
1664 if (d_peek_char (di) == 'B')
1665 ret = d_abi_tags (di, ret);
1666 return ret;
69afa80d
AS		 1667}
1668
bd6946d1 1669/* <source-name> ::= <(positive length) number> <identifier> */
69afa80d 1670
5e777af5 1671static struct demangle_component *
9486db4f 1672d_source_name (struct d_info *di)
69afa80d 1673{
bfbc839a 1674 int len;
5e777af5 1675 struct demangle_component *ret;
bd6946d1
ILT		 1676
1677 len = d_number (di);
1678 if (len <= 0)
1679 return NULL;
1680 ret = d_identifier (di, len);
1681 di->last_name = ret;
1682 return ret;
69afa80d
AS		 1683}
1684
bd6946d1 1685/* number ::= [n] <(non-negative decimal integer)> */
69afa80d 1686
bfbc839a 1687static int
9486db4f 1688d_number (struct d_info *di)
69afa80d 1689{
2d6c4025 1690 int negative;
bd6946d1 1691 char peek;
bfbc839a 1692 int ret;
69afa80d 1693
2d6c4025 1694 negative = 0;
bd6946d1
ILT		 1695 peek = d_peek_char (di);
1696 if (peek == 'n')
1697 {
2d6c4025 1698 negative = 1;
bd6946d1
ILT		 1699 d_advance (di, 1);
1700 peek = d_peek_char (di);
1701 }
69afa80d 1702
bd6946d1
ILT		 1703 ret = 0;
1704 while (1)
69afa80d 1705 {
bd6946d1 1706 if (! IS_DIGIT (peek))
2d6c4025
ILT		 1707 {
1708 if (negative)
1709 ret = - ret;
1710 return ret;
1711 }
de3b531c
JW		 1712 if (ret > ((INT_MAX - (peek - '0')) / 10))
1713 return -1;
bd6946d1
ILT		 1714 ret = ret * 10 + peek - '0';
1715 d_advance (di, 1);
1716 peek = d_peek_char (di);
69afa80d 1717 }
69afa80d
AS		 1718}
1719
abfe01ce
JM		 1720/* Like d_number, but returns a demangle_component. */
1721
1722static struct demangle_component *
1723d_number_component (struct d_info *di)
1724{
1725 struct demangle_component *ret = d_make_empty (di);
1726 if (ret)
1727 {
1728 ret->type = DEMANGLE_COMPONENT_NUMBER;
1729 ret->u.s_number.number = d_number (di);
1730 }
1731 return ret;
1732}
1733
bd6946d1 1734/* identifier ::= <(unqualified source code identifier)> */
69afa80d 1735
5e777af5 1736static struct demangle_component *
bfbc839a 1737d_identifier (struct d_info *di, int len)
69afa80d 1738{
bd6946d1 1739 const char *name;
69afa80d 1740
bd6946d1 1741 name = d_str (di);
2d6c4025
ILT		 1742
1743 if (di->send - name < len)
1744 return NULL;
1745
bd6946d1 1746 d_advance (di, len);
69afa80d 1747
2307e075
ILT		 1748 /* A Java mangled name may have a trailing '$' if it is a C++
1749 keyword. This '$' is not included in the length count. We just
1750 ignore the '$'. */
1751 if ((di->options & DMGL_JAVA) != 0
1752 && d_peek_char (di) == '$')
1753 d_advance (di, 1);
1754
bd6946d1
ILT		 1755 /* Look for something which looks like a gcc encoding of an
1756 anonymous namespace, and replace it with a more user friendly
1757 name. */
bfbc839a 1758 if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2
bd6946d1
ILT		 1759 && memcmp (name, ANONYMOUS_NAMESPACE_PREFIX,
1760 ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0)
69afa80d 1761 {
bd6946d1
ILT		 1762 const char *s;
1763
1764 s = name + ANONYMOUS_NAMESPACE_PREFIX_LEN;
1765 if ((*s == '.' || *s == '_' || *s == '$')
1766 && s[1] == 'N')
2d6c4025
ILT		 1767 {
1768 di->expansion -= len - sizeof "(anonymous namespace)";
1769 return d_make_name (di, "(anonymous namespace)",
1770 sizeof "(anonymous namespace)" - 1);
1771 }
69afa80d 1772 }
bd6946d1
ILT		 1773
1774 return d_make_name (di, name, len);
69afa80d
AS		 1775}
1776
bd6946d1
ILT		 1777/* operator_name ::= many different two character encodings.
1778 ::= cv <type>
1779 ::= v <digit> <source-name>
49f2da1a
JM		 1780
1781 This list is sorted for binary search. */
69afa80d 1782
2d6c4025
ILT		 1783#define NL(s) s, (sizeof s) - 1
1784
5e777af5
ILT		 1785CP_STATIC_IF_GLIBCPP_V3
1786const struct demangle_operator_info cplus_demangle_operators[] =
bd6946d1 1787{
2d6c4025
ILT		 1788 { "aN", NL ("&="), 2 },
1789 { "aS", NL ("="), 2 },
1790 { "aa", NL ("&&"), 2 },
1791 { "ad", NL ("&"), 1 },
1792 { "an", NL ("&"), 2 },
49f2da1a
JM		 1793 { "at", NL ("alignof "), 1 },
1794 { "az", NL ("alignof "), 1 },
aefa74bd 1795 { "cc", NL ("const_cast"), 2 },
5a3d7e74 1796 { "cl", NL ("()"), 2 },
2d6c4025
ILT		 1797 { "cm", NL (","), 2 },
1798 { "co", NL ("~"), 1 },
1799 { "dV", NL ("/="), 2 },
4b6aaa99 1800 { "da", NL ("delete[] "), 1 },
aefa74bd 1801 { "dc", NL ("dynamic_cast"), 2 },
2d6c4025 1802 { "de", NL ("*"), 1 },
4b6aaa99
JM		 1803 { "dl", NL ("delete "), 1 },
1804 { "ds", NL (".*"), 2 },
38179091 1805 { "dt", NL ("."), 2 },
2d6c4025
ILT		 1806 { "dv", NL ("/"), 2 },
1807 { "eO", NL ("^="), 2 },
1808 { "eo", NL ("^"), 2 },
1809 { "eq", NL ("=="), 2 },
7864eaaf
JM		 1810 { "fL", NL ("..."), 3 },
1811 { "fR", NL ("..."), 3 },
1812 { "fl", NL ("..."), 2 },
1813 { "fr", NL ("..."), 2 },
2d6c4025 1814 { "ge", NL (">="), 2 },
4b6aaa99 1815 { "gs", NL ("::"), 1 },
2d6c4025
ILT		 1816 { "gt", NL (">"), 2 },
1817 { "ix", NL ("[]"), 2 },
1818 { "lS", NL ("<<="), 2 },
1819 { "le", NL ("<="), 2 },
c93ea196 1820 { "li", NL ("operator\"\" "), 1 },
2d6c4025
ILT		 1821 { "ls", NL ("<<"), 2 },
1822 { "lt", NL ("<"), 2 },
1823 { "mI", NL ("-="), 2 },
1824 { "mL", NL ("*="), 2 },
1825 { "mi", NL ("-"), 2 },
1826 { "ml", NL ("*"), 2 },
1827 { "mm", NL ("--"), 1 },
4b6aaa99 1828 { "na", NL ("new[]"), 3 },
2d6c4025
ILT		 1829 { "ne", NL ("!="), 2 },
1830 { "ng", NL ("-"), 1 },
1831 { "nt", NL ("!"), 1 },
4b6aaa99 1832 { "nw", NL ("new"), 3 },
2d6c4025
ILT		 1833 { "oR", NL ("|="), 2 },
1834 { "oo", NL ("||"), 2 },
1835 { "or", NL ("|"), 2 },
1836 { "pL", NL ("+="), 2 },
1837 { "pl", NL ("+"), 2 },
1838 { "pm", NL ("->*"), 2 },
1839 { "pp", NL ("++"), 1 },
1840 { "ps", NL ("+"), 1 },
1841 { "pt", NL ("->"), 2 },
1842 { "qu", NL ("?"), 3 },
1843 { "rM", NL ("%="), 2 },
1844 { "rS", NL (">>="), 2 },
aefa74bd 1845 { "rc", NL ("reinterpret_cast"), 2 },
2d6c4025
ILT		 1846 { "rm", NL ("%"), 2 },
1847 { "rs", NL (">>"), 2 },
34bbc4c5
JM		 1848 { "sP", NL ("sizeof..."), 1 },
1849 { "sZ", NL ("sizeof..."), 1 },
aefa74bd 1850 { "sc", NL ("static_cast"), 2 },
2d6c4025 1851 { "st", NL ("sizeof "), 1 },
5e777af5 1852 { "sz", NL ("sizeof "), 1 },
4b6aaa99
JM		 1853 { "tr", NL ("throw"), 0 },
1854 { "tw", NL ("throw "), 1 },
5e777af5 1855 { NULL, NULL, 0, 0 }
bd6946d1 1856};
69afa80d 1857
5e777af5 1858static struct demangle_component *
9486db4f 1859d_operator_name (struct d_info *di)
69afa80d 1860{
bd6946d1
ILT		 1861 char c1;
1862 char c2;
69afa80d 1863
bd6946d1
ILT		 1864 c1 = d_next_char (di);
1865 c2 = d_next_char (di);
1866 if (c1 == 'v' && IS_DIGIT (c2))
1867 return d_make_extended_operator (di, c2 - '0', d_source_name (di));
1868 else if (c1 == 'c' && c2 == 'v')
85d09f61
CC		 1869 {
1870 struct demangle_component *type;
1871 int was_conversion = di->is_conversion;
921da198 1872 struct demangle_component *res;
85d09f61
CC		 1873
1874 di->is_conversion = ! di->is_expression;
1875 type = cplus_demangle_type (di);
921da198
PA		 1876 if (di->is_conversion)
1877 res = d_make_comp (di, DEMANGLE_COMPONENT_CONVERSION, type, NULL);
1878 else
1879 res = d_make_comp (di, DEMANGLE_COMPONENT_CAST, type, NULL);
85d09f61 1880 di->is_conversion = was_conversion;
921da198 1881 return res;
85d09f61 1882 }
bd6946d1 1883 else
69afa80d 1884 {
5e777af5 1885 /* LOW is the inclusive lower bound. */
bd6946d1 1886 int low = 0;
5e777af5
ILT		 1887 /* HIGH is the exclusive upper bound. We subtract one to ignore
1888 the sentinel at the end of the array. */
1889 int high = ((sizeof (cplus_demangle_operators)
1890 / sizeof (cplus_demangle_operators[0]))
1891 - 1);
69afa80d 1892
bd6946d1
ILT		 1893 while (1)
1894 {
1895 int i;
5e777af5 1896 const struct demangle_operator_info *p;
69afa80d 1897
bd6946d1 1898 i = low + (high - low) / 2;
5e777af5 1899 p = cplus_demangle_operators + i;
69afa80d 1900
bd6946d1
ILT		 1901 if (c1 == p->code[0] && c2 == p->code[1])
1902 return d_make_operator (di, p);
1903
1904 if (c1 < p->code[0] || (c1 == p->code[0] && c2 < p->code[1]))
1905 high = i;
1906 else
1907 low = i + 1;
1908 if (low == high)
1909 return NULL;
1910 }
1911 }
69afa80d
AS		 1912}
1913
e5df4fb1
DD		 1914static struct demangle_component *
1915d_make_character (struct d_info *di, int c)
1916{
1917 struct demangle_component *p;
1918 p = d_make_empty (di);
1919 if (p != NULL)
1920 {
1921 p->type = DEMANGLE_COMPONENT_CHARACTER;
1922 p->u.s_character.character = c;
1923 }
1924 return p;
1925}
1926
1927static struct demangle_component *
1928d_java_resource (struct d_info *di)
1929{
1930 struct demangle_component *p = NULL;
1931 struct demangle_component *next = NULL;
bfbc839a 1932 int len, i;
e5df4fb1
DD		 1933 char c;
1934 const char *str;
1935
1936 len = d_number (di);
1937 if (len <= 1)
1938 return NULL;
1939
1940 /* Eat the leading '_'. */
1941 if (d_next_char (di) != '_')
1942 return NULL;
1943 len--;
1944
1945 str = d_str (di);
1946 i = 0;
1947
1948 while (len > 0)
1949 {
1950 c = str[i];
1951 if (!c)
1952 return NULL;
1953
1954 /* Each chunk is either a '$' escape... */
1955 if (c == '$')
1956 {
1957 i++;
1958 switch (str[i++])
1959 {
1960 case 'S':
1961 c = '/';
1962 break;
1963 case '_':
1964 c = '.';
1965 break;
1966 case '$':
1967 c = '$';
1968 break;
1969 default:
1970 return NULL;
1971 }
1972 next = d_make_character (di, c);
1973 d_advance (di, i);
1974 str = d_str (di);
1975 len -= i;
1976 i = 0;
1977 if (next == NULL)
1978 return NULL;
1979 }
1980 /* ... or a sequence of characters. */
1981 else
1982 {
1983 while (i < len && str[i] && str[i] != '$')
1984 i++;
1985
1986 next = d_make_name (di, str, i);
1987 d_advance (di, i);
1988 str = d_str (di);
1989 len -= i;
1990 i = 0;
1991 if (next == NULL)
1992 return NULL;
1993 }
1994
1995 if (p == NULL)
1996 p = next;
1997 else
1998 {
1999 p = d_make_comp (di, DEMANGLE_COMPONENT_COMPOUND_NAME, p, next);
2000 if (p == NULL)
2001 return NULL;
2002 }
2003 }
2004
2005 p = d_make_comp (di, DEMANGLE_COMPONENT_JAVA_RESOURCE, p, NULL);
2006
2007 return p;
2008}
2009
bd6946d1
ILT		 2010/* <special-name> ::= TV <type>
2011 ::= TT <type>
2012 ::= TI <type>
2013 ::= TS <type>
4be5c72c 2014 ::= TA <template-arg>
bd6946d1
ILT		 2015 ::= GV <(object) name>
2016 ::= T <call-offset> <(base) encoding>
2017 ::= Tc <call-offset> <call-offset> <(base) encoding>
2018 Also g++ extensions:
2019 ::= TC <type> <(offset) number> _ <(base) type>
2020 ::= TF <type>
2021 ::= TJ <type>
2022 ::= GR <name>
15da2806 2023 ::= GA <encoding>
e5df4fb1 2024 ::= Gr <resource name>
0a35513e
AH		 2025 ::= GTt <encoding>
2026 ::= GTn <encoding>
bd6946d1 2027*/
69afa80d 2028
5e777af5 2029static struct demangle_component *
9486db4f 2030d_special_name (struct d_info *di)
69afa80d 2031{
2d6c4025 2032 di->expansion += 20;
5165f125 2033 if (d_check_char (di, 'T'))
051664b0 2034 {
bd6946d1
ILT		 2035 switch (d_next_char (di))
2036 {
2037 case 'V':
2d6c4025 2038 di->expansion -= 5;
5e777af5
ILT		 2039 return d_make_comp (di, DEMANGLE_COMPONENT_VTABLE,
2040 cplus_demangle_type (di), NULL);
bd6946d1 2041 case 'T':
2d6c4025 2042 di->expansion -= 10;
5e777af5
ILT		 2043 return d_make_comp (di, DEMANGLE_COMPONENT_VTT,
2044 cplus_demangle_type (di), NULL);
bd6946d1 2045 case 'I':
5e777af5
ILT		 2046 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO,
2047 cplus_demangle_type (di), NULL);
bd6946d1 2048 case 'S':
5e777af5
ILT		 2049 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_NAME,
2050 cplus_demangle_type (di), NULL);
69afa80d 2051
bd6946d1
ILT		 2052 case 'h':
2053 if (! d_call_offset (di, 'h'))
2054 return NULL;
5e777af5
ILT		 2055 return d_make_comp (di, DEMANGLE_COMPONENT_THUNK,
2056 d_encoding (di, 0), NULL);
69afa80d 2057
bd6946d1
ILT		 2058 case 'v':
2059 if (! d_call_offset (di, 'v'))
2060 return NULL;
5e777af5
ILT		 2061 return d_make_comp (di, DEMANGLE_COMPONENT_VIRTUAL_THUNK,
2062 d_encoding (di, 0), NULL);
69afa80d 2063
bd6946d1
ILT		 2064 case 'c':
2065 if (! d_call_offset (di, '\0'))
2066 return NULL;
2067 if (! d_call_offset (di, '\0'))
2068 return NULL;
5e777af5
ILT		 2069 return d_make_comp (di, DEMANGLE_COMPONENT_COVARIANT_THUNK,
2070 d_encoding (di, 0), NULL);
69afa80d 2071
bd6946d1
ILT		 2072 case 'C':
2073 {
5e777af5 2074 struct demangle_component *derived_type;
bfbc839a 2075 int offset;
5e777af5 2076 struct demangle_component *base_type;
bd6946d1 2077
5e777af5 2078 derived_type = cplus_demangle_type (di);
bd6946d1
ILT		 2079 offset = d_number (di);
2080 if (offset < 0)
2081 return NULL;
5165f125 2082 if (! d_check_char (di, '_'))
bd6946d1 2083 return NULL;
5e777af5 2084 base_type = cplus_demangle_type (di);
bd6946d1
ILT		 2085 /* We don't display the offset. FIXME: We should display
2086 it in verbose mode. */
2d6c4025 2087 di->expansion += 5;
5e777af5
ILT		 2088 return d_make_comp (di, DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
2089 base_type, derived_type);
bd6946d1 2090 }
69afa80d 2091
bd6946d1 2092 case 'F':
5e777af5
ILT		 2093 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_FN,
2094 cplus_demangle_type (di), NULL);
bd6946d1 2095 case 'J':
5e777af5
ILT		 2096 return d_make_comp (di, DEMANGLE_COMPONENT_JAVA_CLASS,
2097 cplus_demangle_type (di), NULL);
69afa80d 2098
7c424acd
JM		 2099 case 'H':
2100 return d_make_comp (di, DEMANGLE_COMPONENT_TLS_INIT,
7cd7dbda 2101 d_name (di), NULL);
7c424acd
JM		 2102
2103 case 'W':
2104 return d_make_comp (di, DEMANGLE_COMPONENT_TLS_WRAPPER,
7cd7dbda 2105 d_name (di), NULL);
7c424acd 2106
4be5c72c
JM		 2107 case 'A':
2108 return d_make_comp (di, DEMANGLE_COMPONENT_TPARM_OBJ,
2109 d_template_arg (di), NULL);
2110
bd6946d1
ILT		 2111 default:
2112 return NULL;
2113 }
69afa80d 2114 }
5165f125 2115 else if (d_check_char (di, 'G'))
69afa80d 2116 {
bd6946d1
ILT		 2117 switch (d_next_char (di))
2118 {
2119 case 'V':
fa0cdfb6 2120 return d_make_comp (di, DEMANGLE_COMPONENT_GUARD,
7cd7dbda 2121 d_name (di), NULL);
bd6946d1
ILT		 2122
2123 case 'R':
b25dd954 2124 {
7cd7dbda 2125 struct demangle_component *name = d_name (di);
b25dd954
JM		 2126 return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, name,
2127 d_number_component (di));
2128 }
bd6946d1 2129
15da2806
RH		 2130 case 'A':
2131 return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS,
2132 d_encoding (di, 0), NULL);
2133
0a35513e
AH		 2134 case 'T':
2135 switch (d_next_char (di))
2136 {
2137 case 'n':
2138 return d_make_comp (di, DEMANGLE_COMPONENT_NONTRANSACTION_CLONE,
2139 d_encoding (di, 0), NULL);
2140 default:
2141 /* ??? The proposal is that other letters (such as 'h') stand
2142 for different variants of transaction cloning, such as
2143 compiling directly for hardware transaction support. But
2144 they still should all be transactional clones of some sort
2145 so go ahead and call them that. */
2146 case 't':
2147 return d_make_comp (di, DEMANGLE_COMPONENT_TRANSACTION_CLONE,
2148 d_encoding (di, 0), NULL);
2149 }
2150
e5df4fb1
DD		 2151 case 'r':
2152 return d_java_resource (di);
2153
bd6946d1
ILT		 2154 default:
2155 return NULL;
2156 }
69afa80d 2157 }
bd6946d1
ILT		 2158 else
2159 return NULL;
69afa80d
AS		 2160}
2161
bd6946d1
ILT		 2162/* <call-offset> ::= h <nv-offset> _
2163 ::= v <v-offset> _
69afa80d 2164
bd6946d1 2165 <nv-offset> ::= <(offset) number>
69afa80d 2166
bd6946d1 2167 <v-offset> ::= <(offset) number> _ <(virtual offset) number>
69afa80d 2168
bd6946d1
ILT		 2169 The C parameter, if not '\0', is a character we just read which is
2170 the start of the <call-offset>.
69afa80d 2171
bd6946d1
ILT		 2172 We don't display the offset information anywhere. FIXME: We should
2173 display it in verbose mode. */
69afa80d 2174
bd6946d1 2175static int
9486db4f 2176d_call_offset (struct d_info *di, int c)
69afa80d 2177{
bd6946d1
ILT		 2178 if (c == '\0')
2179 c = d_next_char (di);
69afa80d 2180
bd6946d1 2181 if (c == 'h')
0b167d51 2182 d_number (di);
bd6946d1 2183 else if (c == 'v')
69afa80d 2184 {
0b167d51 2185 d_number (di);
5165f125 2186 if (! d_check_char (di, '_'))
bd6946d1 2187 return 0;
0b167d51 2188 d_number (di);
69afa80d 2189 }
bd6946d1
ILT		 2190 else
2191 return 0;
69afa80d 2192
5165f125 2193 if (! d_check_char (di, '_'))
bd6946d1 2194 return 0;
69afa80d 2195
bd6946d1 2196 return 1;
69afa80d
AS		 2197}
2198
bd6946d1
ILT		 2199/* <ctor-dtor-name> ::= C1
2200 ::= C2
2201 ::= C3
2202 ::= D0
2203 ::= D1
2204 ::= D2
2205*/
2206
5e777af5 2207static struct demangle_component *
9486db4f 2208d_ctor_dtor_name (struct d_info *di)
bd6946d1 2209{
2d6c4025
ILT		 2210 if (di->last_name != NULL)
2211 {
5e777af5 2212 if (di->last_name->type == DEMANGLE_COMPONENT_NAME)
2d6c4025 2213 di->expansion += di->last_name->u.s_name.len;
5e777af5 2214 else if (di->last_name->type == DEMANGLE_COMPONENT_SUB_STD)
2d6c4025
ILT		 2215 di->expansion += di->last_name->u.s_string.len;
2216 }
5165f125 2217 switch (d_peek_char (di))
bd6946d1
ILT		 2218 {
2219 case 'C':
2220 {
2221 enum gnu_v3_ctor_kinds kind;
31f7f784
JM		 2222 int inheriting = 0;
2223
2224 if (d_peek_next_char (di) == 'I')
2225 {
2226 inheriting = 1;
2227 d_advance (di, 1);
2228 }
bd6946d1 2229
5165f125 2230 switch (d_peek_next_char (di))
bd6946d1
ILT		 2231 {
2232 case '1':
2233 kind = gnu_v3_complete_object_ctor;
2234 break;
2235 case '2':
2236 kind = gnu_v3_base_object_ctor;
2237 break;
2238 case '3':
2239 kind = gnu_v3_complete_object_allocating_ctor;
2240 break;
1f26ac87
JM		 2241 case '4':
2242 kind = gnu_v3_unified_ctor;
2243 break;
0a35513e
AH		 2244 case '5':
2245 kind = gnu_v3_object_ctor_group;
2246 break;
bd6946d1
ILT		 2247 default:
2248 return NULL;
2249 }
31f7f784 2250
5165f125 2251 d_advance (di, 2);
31f7f784
JM		 2252
2253 if (inheriting)
2254 cplus_demangle_type (di);
2255
bd6946d1
ILT		 2256 return d_make_ctor (di, kind, di->last_name);
2257 }
2258
2259 case 'D':
2260 {
2261 enum gnu_v3_dtor_kinds kind;
2262
5165f125 2263 switch (d_peek_next_char (di))
bd6946d1
ILT		 2264 {
2265 case '0':
2266 kind = gnu_v3_deleting_dtor;
2267 break;
2268 case '1':
2269 kind = gnu_v3_complete_object_dtor;
2270 break;
2271 case '2':
2272 kind = gnu_v3_base_object_dtor;
2273 break;
1f26ac87
JM		 2274 /* digit '3' is not used */
2275 case '4':
2276 kind = gnu_v3_unified_dtor;
2277 break;
0a35513e
AH		 2278 case '5':
2279 kind = gnu_v3_object_dtor_group;
2280 break;
bd6946d1
ILT		 2281 default:
2282 return NULL;
2283 }
5165f125 2284 d_advance (di, 2);
bd6946d1
ILT		 2285 return d_make_dtor (di, kind, di->last_name);
2286 }
69afa80d 2287
bd6946d1
ILT		 2288 default:
2289 return NULL;
2290 }
2291}
69afa80d 2292
51dc6603
JM		 2293/* True iff we're looking at an order-insensitive type-qualifier, including
2294 function-type-qualifiers. */
2295
2296static int
2297next_is_type_qual (struct d_info *di)
2298{
2299 char peek = d_peek_char (di);
2300 if (peek == 'r' || peek == 'V' || peek == 'K')
2301 return 1;
2302 if (peek == 'D')
2303 {
2304 peek = d_peek_next_char (di);
2305 if (peek == 'x' || peek == 'o' || peek == 'O' || peek == 'w')
2306 return 1;
2307 }
2308 return 0;
2309}
2310
bd6946d1
ILT		 2311/* <type> ::= <builtin-type>
2312 ::= <function-type>
2313 ::= <class-enum-type>
2314 ::= <array-type>
2315 ::= <pointer-to-member-type>
2316 ::= <template-param>
2317 ::= <template-template-param> <template-args>
2318 ::= <substitution>
2319 ::= <CV-qualifiers> <type>
2320 ::= P <type>
2321 ::= R <type>
1ab28be5 2322 ::= O <type> (C++0x)
bd6946d1
ILT		 2323 ::= C <type>
2324 ::= G <type>
2325 ::= U <source-name> <type>
2326
2327 <builtin-type> ::= various one letter codes
2328 ::= u <source-name>
2329*/
69afa80d 2330
5e777af5
ILT		 2331CP_STATIC_IF_GLIBCPP_V3
2332const struct demangle_builtin_type_info
2333cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT] =
bd6946d1 2334{
31058ee3 2335 /* a */ { NL ("signed char"), NL ("signed char"), D_PRINT_DEFAULT },
2d6c4025 2336 /* b */ { NL ("bool"), NL ("boolean"), D_PRINT_BOOL },
31058ee3
ILT		 2337 /* c */ { NL ("char"), NL ("byte"), D_PRINT_DEFAULT },
2338 /* d */ { NL ("double"), NL ("double"), D_PRINT_FLOAT },
2339 /* e */ { NL ("long double"), NL ("long double"), D_PRINT_FLOAT },
2340 /* f */ { NL ("float"), NL ("float"), D_PRINT_FLOAT },
2341 /* g */ { NL ("__float128"), NL ("__float128"), D_PRINT_FLOAT },
2342 /* h */ { NL ("unsigned char"), NL ("unsigned char"), D_PRINT_DEFAULT },
2d6c4025 2343 /* i */ { NL ("int"), NL ("int"), D_PRINT_INT },
31058ee3 2344 /* j */ { NL ("unsigned int"), NL ("unsigned"), D_PRINT_UNSIGNED },
2d6c4025
ILT		 2345 /* k */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2346 /* l */ { NL ("long"), NL ("long"), D_PRINT_LONG },
31058ee3 2347 /* m */ { NL ("unsigned long"), NL ("unsigned long"), D_PRINT_UNSIGNED_LONG },
2d6c4025 2348 /* n */ { NL ("__int128"), NL ("__int128"), D_PRINT_DEFAULT },
31058ee3
ILT		 2349 /* o */ { NL ("unsigned __int128"), NL ("unsigned __int128"),
2350 D_PRINT_DEFAULT },
38179091
JM		 2351 /* p */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2352 /* q */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2353 /* r */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
31058ee3
ILT		 2354 /* s */ { NL ("short"), NL ("short"), D_PRINT_DEFAULT },
2355 /* t */ { NL ("unsigned short"), NL ("unsigned short"), D_PRINT_DEFAULT },
38179091 2356 /* u */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2d6c4025 2357 /* v */ { NL ("void"), NL ("void"), D_PRINT_VOID },
31058ee3
ILT		 2358 /* w */ { NL ("wchar_t"), NL ("char"), D_PRINT_DEFAULT },
2359 /* x */ { NL ("long long"), NL ("long"), D_PRINT_LONG_LONG },
2360 /* y */ { NL ("unsigned long long"), NL ("unsigned long long"),
2361 D_PRINT_UNSIGNED_LONG_LONG },
2d6c4025 2362 /* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT },
38179091
JM		 2363 /* 26 */ { NL ("decimal32"), NL ("decimal32"), D_PRINT_DEFAULT },
2364 /* 27 */ { NL ("decimal64"), NL ("decimal64"), D_PRINT_DEFAULT },
2365 /* 28 */ { NL ("decimal128"), NL ("decimal128"), D_PRINT_DEFAULT },
2366 /* 29 */ { NL ("half"), NL ("half"), D_PRINT_FLOAT },
2367 /* 30 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT },
2368 /* 31 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT },
14c2101d
JM		 2369 /* 32 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"),
2370 D_PRINT_DEFAULT },
bd6946d1 2371};
69afa80d 2372
5e777af5
ILT		 2373CP_STATIC_IF_GLIBCPP_V3
2374struct demangle_component *
9486db4f 2375cplus_demangle_type (struct d_info *di)
69afa80d 2376{
bd6946d1 2377 char peek;
5e777af5 2378 struct demangle_component *ret;
bd6946d1
ILT		 2379 int can_subst;
2380
2381 /* The ABI specifies that when CV-qualifiers are used, the base type
2382 is substitutable, and the fully qualified type is substitutable,
2383 but the base type with a strict subset of the CV-qualifiers is
2384 not substitutable. The natural recursive implementation of the
2385 CV-qualifiers would cause subsets to be substitutable, so instead
2386 we pull them all off now.
2387
81dc098b
ILT		 2388 FIXME: The ABI says that order-insensitive vendor qualifiers
2389 should be handled in the same way, but we have no way to tell
2390 which vendor qualifiers are order-insensitive and which are
2391 order-sensitive. So we just assume that they are all
2392 order-sensitive. g++ 3.4 supports only one vendor qualifier,
2393 __vector, and it treats it as order-sensitive when mangling
2394 names. */
bd6946d1 2395
51dc6603 2396 if (next_is_type_qual (di))
bd6946d1 2397 {
5e777af5 2398 struct demangle_component **pret;
69afa80d 2399
a51753e4 2400 pret = d_cv_qualifiers (di, &ret, 0);
81dc098b
ILT		 2401 if (pret == NULL)
2402 return NULL;
0861bec8
JM		 2403 if (d_peek_char (di) == 'F')
2404 {
2405 /* cv-qualifiers before a function type apply to 'this',
2406 so avoid adding the unqualified function type to
2407 the substitution list. */
2408 *pret = d_function_type (di);
2409 }
2410 else
2411 *pret = cplus_demangle_type (di);
2412 if (!*pret)
9eb85f27
JM		 2413 return NULL;
2414 if ((*pret)->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS
2415 || (*pret)->type == DEMANGLE_COMPONENT_REFERENCE_THIS)
2416 {
2417 /* Move the ref-qualifier outside the cv-qualifiers so that
2418 they are printed in the right order. */
2419 struct demangle_component *fn = d_left (*pret);
2420 d_left (*pret) = ret;
2421 ret = *pret;
2422 *pret = fn;
2423 }
2424 if (! d_add_substitution (di, ret))
bd6946d1
ILT		 2425 return NULL;
2426 return ret;
2427 }
1056d228 2428
bd6946d1 2429 can_subst = 1;
69afa80d 2430
51dc6603 2431 peek = d_peek_char (di);
a440fd19 2432 switch (peek)
69afa80d 2433 {
bd6946d1
ILT		 2434 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
2435 case 'h': case 'i': case 'j': case 'l': case 'm': case 'n':
2436 case 'o': case 's': case 't':
2437 case 'v': case 'w': case 'x': case 'y': case 'z':
5e777af5
ILT		 2438 ret = d_make_builtin_type (di,
2439 &cplus_demangle_builtin_types[peek - 'a']);
2d6c4025 2440 di->expansion += ret->u.s_builtin.type->len;
bd6946d1
ILT		 2441 can_subst = 0;
2442 d_advance (di, 1);
2443 break;
2444
2445 case 'u':
2446 d_advance (di, 1);
5e777af5
ILT		 2447 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE,
2448 d_source_name (di), NULL);
bd6946d1
ILT		 2449 break;
2450
2451 case 'F':
2452 ret = d_function_type (di);
69afa80d
AS		 2453 break;
2454
bd6946d1
ILT		 2455 case '0': case '1': case '2': case '3': case '4':
2456 case '5': case '6': case '7': case '8': case '9':
2457 case 'N':
69afa80d 2458 case 'Z':
bd6946d1 2459 ret = d_class_enum_type (di);
69afa80d
AS		 2460 break;
2461
bd6946d1
ILT		 2462 case 'A':
2463 ret = d_array_type (di);
2464 break;
2465
2466 case 'M':
2467 ret = d_pointer_to_member_type (di);
2468 break;
2469
2470 case 'T':
2471 ret = d_template_param (di);
2472 if (d_peek_char (di) == 'I')
bece74bd 2473 {
85d09f61
CC		 2474 /* This may be <template-template-param> <template-args>.
2475 If this is the type for a conversion operator, we can
2476 have a <template-template-param> here only by following
2477 a derivation like this:
2478
2479 <nested-name>
2480 -> <template-prefix> <template-args>
2481 -> <prefix> <template-unqualified-name> <template-args>
2482 -> <unqualified-name> <template-unqualified-name> <template-args>
2483 -> <source-name> <template-unqualified-name> <template-args>
2484 -> <source-name> <operator-name> <template-args>
2485 -> <source-name> cv <type> <template-args>
2486 -> <source-name> cv <template-template-param> <template-args> <template-args>
2487
2488 where the <template-args> is followed by another.
2489 Otherwise, we must have a derivation like this:
2490
2491 <nested-name>
2492 -> <template-prefix> <template-args>
2493 -> <prefix> <template-unqualified-name> <template-args>
2494 -> <unqualified-name> <template-unqualified-name> <template-args>
2495 -> <source-name> <template-unqualified-name> <template-args>
2496 -> <source-name> <operator-name> <template-args>
2497 -> <source-name> cv <type> <template-args>
2498 -> <source-name> cv <template-param> <template-args>
2499
2500 where we need to leave the <template-args> to be processed
2501 by d_prefix (following the <template-prefix>).
2502
2503 The <template-template-param> part is a substitution
bd6946d1 2504 candidate. */
85d09f61
CC		 2505 if (! di->is_conversion)
2506 {
2507 if (! d_add_substitution (di, ret))
2508 return NULL;
2509 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2510 d_template_args (di));
2511 }
2512 else
2513 {
2514 struct demangle_component *args;
2515 struct d_info_checkpoint checkpoint;
2516
2517 d_checkpoint (di, &checkpoint);
2518 args = d_template_args (di);
2519 if (d_peek_char (di) == 'I')
2520 {
2521 if (! d_add_substitution (di, ret))
2522 return NULL;
2523 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2524 args);
2525 }
2526 else
2527 d_backtrack (di, &checkpoint);
2528 }
bece74bd 2529 }
bd6946d1
ILT		 2530 break;
2531
2532 case 'S':
2533 /* If this is a special substitution, then it is the start of
2534 <class-enum-type>. */
2535 {
2536 char peek_next;
d01ce591 2537
bd6946d1
ILT		 2538 peek_next = d_peek_next_char (di);
2539 if (IS_DIGIT (peek_next)
2540 || peek_next == '_'
a51753e4 2541 || IS_UPPER (peek_next))
bd6946d1 2542 {
374caa50 2543 ret = d_substitution (di, 0);
bd6946d1
ILT		 2544 /* The substituted name may have been a template name and
2545 may be followed by tepmlate args. */
2546 if (d_peek_char (di) == 'I')
5e777af5 2547 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
bd6946d1
ILT		 2548 d_template_args (di));
2549 else
2550 can_subst = 0;
2551 }
2552 else
2553 {
2554 ret = d_class_enum_type (di);
2555 /* If the substitution was a complete type, then it is not
2556 a new substitution candidate. However, if the
2557 substitution was followed by template arguments, then
2558 the whole thing is a substitution candidate. */
5e777af5 2559 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_SUB_STD)
bd6946d1
ILT		 2560 can_subst = 0;
2561 }
2562 }
69afa80d
AS		 2563 break;
2564
1ab28be5
DG		 2565 case 'O':
2566 d_advance (di, 1);
2567 ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE,
2568 cplus_demangle_type (di), NULL);
2569 break;
2570
bd6946d1
ILT		 2571 case 'P':
2572 d_advance (di, 1);
5e777af5
ILT		 2573 ret = d_make_comp (di, DEMANGLE_COMPONENT_POINTER,
2574 cplus_demangle_type (di), NULL);
bd6946d1 2575 break;
69afa80d 2576
bd6946d1
ILT		 2577 case 'R':
2578 d_advance (di, 1);
5e777af5 2579 ret = d_make_comp (di, DEMANGLE_COMPONENT_REFERENCE,
1ab28be5 2580 cplus_demangle_type (di), NULL);
bd6946d1 2581 break;
69afa80d 2582
bd6946d1
ILT		 2583 case 'C':
2584 d_advance (di, 1);
5e777af5
ILT		 2585 ret = d_make_comp (di, DEMANGLE_COMPONENT_COMPLEX,
2586 cplus_demangle_type (di), NULL);
bd6946d1
ILT		 2587 break;
2588
2589 case 'G':
2590 d_advance (di, 1);
5e777af5
ILT		 2591 ret = d_make_comp (di, DEMANGLE_COMPONENT_IMAGINARY,
2592 cplus_demangle_type (di), NULL);
bd6946d1 2593 break;
69afa80d 2594
bd6946d1
ILT		 2595 case 'U':
2596 d_advance (di, 1);
2597 ret = d_source_name (di);
603eaec4
JM		 2598 if (d_peek_char (di) == 'I')
2599 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2600 d_template_args (di));
5e777af5
ILT		 2601 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
2602 cplus_demangle_type (di), ret);
69afa80d 2603 break;
bd6946d1 2604
5a3d7e74
JM		 2605 case 'D':
2606 can_subst = 0;
2607 d_advance (di, 1);
2608 peek = d_next_char (di);
2609 switch (peek)
2610 {
2611 case 'T':
2612 case 't':
2613 /* decltype (expression) */
2614 ret = d_make_comp (di, DEMANGLE_COMPONENT_DECLTYPE,
2615 d_expression (di), NULL);
2616 if (ret && d_next_char (di) != 'E')
2617 ret = NULL;
49f2da1a 2618 can_subst = 1;
5a3d7e74
JM		 2619 break;
2620
2621 case 'p':
2622 /* Pack expansion. */
38179091
JM		 2623 ret = d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
2624 cplus_demangle_type (di), NULL);
49f2da1a 2625 can_subst = 1;
38179091 2626 break;
c19267cb
JM		 2627
2628 case 'a':
2629 /* auto */
2630 ret = d_make_name (di, "auto", 4);
2631 break;
816f4314
JJ		 2632 case 'c':
2633 /* decltype(auto) */
2634 ret = d_make_name (di, "decltype(auto)", 14);
2635 break;
2636
5a3d7e74 2637 case 'f':
38179091
JM		 2638 /* 32-bit decimal floating point */
2639 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);
5a3d7e74
JM		 2640 di->expansion += ret->u.s_builtin.type->len;
2641 break;
2642 case 'd':
38179091
JM		 2643 /* 64-bit DFP */
2644 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[27]);
5a3d7e74
JM		 2645 di->expansion += ret->u.s_builtin.type->len;
2646 break;
2647 case 'e':
2648 /* 128-bit DFP */
38179091 2649 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[28]);
5a3d7e74
JM		 2650 di->expansion += ret->u.s_builtin.type->len;
2651 break;
2652 case 'h':
2653 /* 16-bit half-precision FP */
38179091
JM		 2654 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]);
2655 di->expansion += ret->u.s_builtin.type->len;
2656 break;
2657 case 's':
2658 /* char16_t */
2659 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
2660 di->expansion += ret->u.s_builtin.type->len;
2661 break;
2662 case 'i':
2663 /* char32_t */
2664 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
5a3d7e74
JM		 2665 di->expansion += ret->u.s_builtin.type->len;
2666 break;
07523e7c
JM		 2667
2668 case 'F':
2669 /* Fixed point types. DF<int bits><length><fract bits><sat> */
2670 ret = d_make_empty (di);
2671 ret->type = DEMANGLE_COMPONENT_FIXED_TYPE;
2672 if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di))))
2673 /* For demangling we don't care about the bits. */
2674 d_number (di);
2675 ret->u.s_fixed.length = cplus_demangle_type (di);
79b754d4
ILT		 2676 if (ret->u.s_fixed.length == NULL)
2677 return NULL;
07523e7c
JM		 2678 d_number (di);
2679 peek = d_next_char (di);
2680 ret->u.s_fixed.sat = (peek == 's');
2681 break;
381009fe 2682
abfe01ce
JM		 2683 case 'v':
2684 ret = d_vector_type (di);
49f2da1a 2685 can_subst = 1;
abfe01ce
JM		 2686 break;
2687
14c2101d
JM		 2688 case 'n':
2689 /* decltype(nullptr) */
2690 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[32]);
2691 di->expansion += ret->u.s_builtin.type->len;
2692 break;
2693
381009fe
BE		 2694 default:
2695 return NULL;
5a3d7e74
JM		 2696 }
2697 break;
2698
bd6946d1
ILT		 2699 default:
2700 return NULL;
69afa80d
AS		 2701 }
2702
bd6946d1
ILT		 2703 if (can_subst)
2704 {
2705 if (! d_add_substitution (di, ret))
2706 return NULL;
2707 }
69afa80d 2708
bd6946d1
ILT		 2709 return ret;
2710}
69afa80d 2711
b8fd7909 2712/* <CV-qualifiers> ::= [r] [V] [K] [Dx] */
69afa80d 2713
5e777af5 2714static struct demangle_component **
9486db4f
GDR		 2715d_cv_qualifiers (struct d_info *di,
2716 struct demangle_component **pret, int member_fn)
69afa80d 2717{
d58818f7 2718 struct demangle_component **pstart;
69afa80d
AS		 2719 char peek;
2720
d58818f7 2721 pstart = pret;
bd6946d1 2722 peek = d_peek_char (di);
51dc6603 2723 while (next_is_type_qual (di))
69afa80d 2724 {
5e777af5 2725 enum demangle_component_type t;
51dc6603 2726 struct demangle_component *right = NULL;
0870bfd6 2727
bd6946d1
ILT		 2728 d_advance (di, 1);
2729 if (peek == 'r')
2d6c4025 2730 {
5e777af5
ILT		 2731 t = (member_fn
2732 ? DEMANGLE_COMPONENT_RESTRICT_THIS
2733 : DEMANGLE_COMPONENT_RESTRICT);
2d6c4025
ILT		 2734 di->expansion += sizeof "restrict";
2735 }
bd6946d1 2736 else if (peek == 'V')
2d6c4025 2737 {
5e777af5
ILT		 2738 t = (member_fn
2739 ? DEMANGLE_COMPONENT_VOLATILE_THIS
2740 : DEMANGLE_COMPONENT_VOLATILE);
2d6c4025
ILT		 2741 di->expansion += sizeof "volatile";
2742 }
b8fd7909 2743 else if (peek == 'K')
2d6c4025 2744 {
5e777af5
ILT		 2745 t = (member_fn
2746 ? DEMANGLE_COMPONENT_CONST_THIS
2747 : DEMANGLE_COMPONENT_CONST);
2d6c4025
ILT		 2748 di->expansion += sizeof "const";
2749 }
b8fd7909
JM		 2750 else
2751 {
51dc6603
JM		 2752 peek = d_next_char (di);
2753 if (peek == 'x')
2754 {
2755 t = DEMANGLE_COMPONENT_TRANSACTION_SAFE;
2756 di->expansion += sizeof "transaction_safe";
2757 }
2758 else if (peek == 'o'
2759 || peek == 'O')
2760 {
2761 t = DEMANGLE_COMPONENT_NOEXCEPT;
2762 di->expansion += sizeof "noexcept";
2763 if (peek == 'O')
2764 {
2765 right = d_expression (di);
2766 if (right == NULL)
2767 return NULL;
2768 if (! d_check_char (di, 'E'))
2769 return NULL;
2770 }
2771 }
2772 else if (peek == 'w')
2773 {
2774 t = DEMANGLE_COMPONENT_THROW_SPEC;
2775 di->expansion += sizeof "throw";
2776 right = d_parmlist (di);
2777 if (right == NULL)
2778 return NULL;
2779 if (! d_check_char (di, 'E'))
2780 return NULL;
2781 }
2782 else
2783 return NULL;
b8fd7909 2784 }
69afa80d 2785
51dc6603 2786 *pret = d_make_comp (di, t, NULL, right);
bd6946d1
ILT		 2787 if (*pret == NULL)
2788 return NULL;
2789 pret = &d_left (*pret);
69afa80d 2790
bd6946d1
ILT		 2791 peek = d_peek_char (di);
2792 }
69afa80d 2793
d58818f7
ILT		 2794 if (!member_fn && peek == 'F')
2795 {
2796 while (pstart != pret)
2797 {
2798 switch ((*pstart)->type)
2799 {
2800 case DEMANGLE_COMPONENT_RESTRICT:
2801 (*pstart)->type = DEMANGLE_COMPONENT_RESTRICT_THIS;
2802 break;
2803 case DEMANGLE_COMPONENT_VOLATILE:
2804 (*pstart)->type = DEMANGLE_COMPONENT_VOLATILE_THIS;
2805 break;
2806 case DEMANGLE_COMPONENT_CONST:
2807 (*pstart)->type = DEMANGLE_COMPONENT_CONST_THIS;
2808 break;
2809 default:
2810 break;
2811 }
2812 pstart = &d_left (*pstart);
2813 }
2814 }
2815
bd6946d1
ILT		 2816 return pret;
2817}
69afa80d 2818
9eb85f27
JM		 2819/* <ref-qualifier> ::= R
2820 ::= O */
2821
2822static struct demangle_component *
2823d_ref_qualifier (struct d_info *di, struct demangle_component *sub)
2824{
2825 struct demangle_component *ret = sub;
2826 char peek;
2827
2828 peek = d_peek_char (di);
2829 if (peek == 'R' || peek == 'O')
2830 {
2831 enum demangle_component_type t;
2832 if (peek == 'R')
2833 {
2834 t = DEMANGLE_COMPONENT_REFERENCE_THIS;
2835 di->expansion += sizeof "&";
2836 }
2837 else
2838 {
2839 t = DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS;
2840 di->expansion += sizeof "&&";
2841 }
2842 d_advance (di, 1);
2843
2844 ret = d_make_comp (di, t, ret, NULL);
2845 }
2846
2847 return ret;
2848}
2849
b8fd7909 2850/* <function-type> ::= F [Y] <bare-function-type> [<ref-qualifier>] [T] E */
69afa80d 2851
5e777af5 2852static struct demangle_component *
9486db4f 2853d_function_type (struct d_info *di)
69afa80d 2854{
e96d1d8c 2855 struct demangle_component *ret = NULL;
69afa80d 2856
e96d1d8c 2857 if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0)
bd6946d1 2858 {
e96d1d8c
NC		 2859 if (di->recursion_level > DEMANGLE_RECURSION_LIMIT)
2860 /* FIXME: There ought to be a way to report
2861 that the recursion limit has been reached. */
2862 return NULL;
2863
2864 di->recursion_level ++;
bd6946d1 2865 }
9eb85f27 2866
e96d1d8c
NC		 2867 if (d_check_char (di, 'F'))
2868 {
2869 if (d_peek_char (di) == 'Y')
2870 {
2871 /* Function has C linkage. We don't print this information.
2872 FIXME: We should print it in verbose mode. */
2873 d_advance (di, 1);
2874 }
2875 ret = d_bare_function_type (di, 1);
2876 ret = d_ref_qualifier (di, ret);
2877
2878 if (! d_check_char (di, 'E'))
2879 ret = NULL;
2880 }
2881
2882 if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0)
2883 di->recursion_level --;
bd6946d1
ILT		 2884 return ret;
2885}
e282c9c9 2886
d5f4eddd 2887/* <type>+ */
69afa80d 2888
5e777af5 2889static struct demangle_component *
d5f4eddd 2890d_parmlist (struct d_info *di)
bd6946d1 2891{
5e777af5
ILT		 2892 struct demangle_component *tl;
2893 struct demangle_component **ptl;
92aed1cb 2894
bd6946d1
ILT		 2895 tl = NULL;
2896 ptl = &tl;
69afa80d
AS		 2897 while (1)
2898 {
5e777af5 2899 struct demangle_component *type;
69afa80d 2900
d5f4eddd 2901 char peek = d_peek_char (di);
2d2b02c4 2902 if (peek == '\0' || peek == 'E' || peek == '.')
bd6946d1 2903 break;
9eb85f27
JM		 2904 if ((peek == 'R' || peek == 'O')
2905 && d_peek_next_char (di) == 'E')
2906 /* Function ref-qualifier, not a ref prefix for a parameter type. */
2907 break;
5e777af5 2908 type = cplus_demangle_type (di);
bd6946d1
ILT		 2909 if (type == NULL)
2910 return NULL;
d5f4eddd
JM		 2911 *ptl = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, type, NULL);
2912 if (*ptl == NULL)
2913 return NULL;
2914 ptl = &d_right (*ptl);
69afa80d 2915 }
69afa80d 2916
bd6946d1
ILT		 2917 /* There should be at least one parameter type besides the optional
2918 return type. A function which takes no arguments will have a
2919 single parameter type void. */
2920 if (tl == NULL)
2921 return NULL;
69afa80d 2922
bd6946d1
ILT		 2923 /* If we have a single parameter type void, omit it. */
2924 if (d_right (tl) == NULL
5e777af5 2925 && d_left (tl)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
bd6946d1 2926 && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID)
2d6c4025
ILT		 2927 {
2928 di->expansion -= d_left (tl)->u.s_builtin.type->len;
d5f4eddd 2929 d_left (tl) = NULL;
2d6c4025 2930 }
69afa80d 2931
d5f4eddd
JM		 2932 return tl;
2933}
2934
2935/* <bare-function-type> ::= [J]<type>+ */
2936
2937static struct demangle_component *
2938d_bare_function_type (struct d_info *di, int has_return_type)
2939{
2940 struct demangle_component *return_type;
2941 struct demangle_component *tl;
2942 char peek;
2943
2944 /* Detect special qualifier indicating that the first argument
2945 is the return type. */
2946 peek = d_peek_char (di);
2947 if (peek == 'J')
2948 {
2949 d_advance (di, 1);
2950 has_return_type = 1;
2951 }
2952
2953 if (has_return_type)
2954 {
2955 return_type = cplus_demangle_type (di);
2956 if (return_type == NULL)
2957 return NULL;
2958 }
2959 else
2960 return_type = NULL;
2961
2962 tl = d_parmlist (di);
2963 if (tl == NULL)
2964 return NULL;
2965
2966 return d_make_comp (di, DEMANGLE_COMPONENT_FUNCTION_TYPE,
2967 return_type, tl);
bd6946d1 2968}
69afa80d 2969
bd6946d1 2970/* <class-enum-type> ::= <name> */
69afa80d 2971
5e777af5 2972static struct demangle_component *
9486db4f 2973d_class_enum_type (struct d_info *di)
bd6946d1 2974{
7cd7dbda 2975 return d_name (di);
bd6946d1 2976}
1056d228 2977
bd6946d1
ILT		 2978/* <array-type> ::= A <(positive dimension) number> _ <(element) type>
2979 ::= A [<(dimension) expression>] _ <(element) type>
2980*/
1056d228 2981
5e777af5 2982static struct demangle_component *
9486db4f 2983d_array_type (struct d_info *di)
bd6946d1
ILT		 2984{
2985 char peek;
5e777af5 2986 struct demangle_component *dim;
1056d228 2987
5165f125 2988 if (! d_check_char (di, 'A'))
bd6946d1
ILT		 2989 return NULL;
2990
2991 peek = d_peek_char (di);
2992 if (peek == '_')
2993 dim = NULL;
2994 else if (IS_DIGIT (peek))
1056d228 2995 {
bd6946d1 2996 const char *s;
1056d228 2997
bd6946d1
ILT		 2998 s = d_str (di);
2999 do
3000 {
3001 d_advance (di, 1);
3002 peek = d_peek_char (di);
3003 }
3004 while (IS_DIGIT (peek));
3005 dim = d_make_name (di, s, d_str (di) - s);
81dc098b
ILT		 3006 if (dim == NULL)
3007 return NULL;
1056d228 3008 }
69afa80d 3009 else
bd6946d1
ILT		 3010 {
3011 dim = d_expression (di);
3012 if (dim == NULL)
3013 return NULL;
3014 }
69afa80d 3015
5165f125 3016 if (! d_check_char (di, '_'))
bd6946d1 3017 return NULL;
69afa80d 3018
5e777af5
ILT		 3019 return d_make_comp (di, DEMANGLE_COMPONENT_ARRAY_TYPE, dim,
3020 cplus_demangle_type (di));
bd6946d1 3021}
69afa80d 3022
abfe01ce
JM		 3023/* <vector-type> ::= Dv <number> _ <type>
3024 ::= Dv _ <expression> _ <type> */
3025
3026static struct demangle_component *
3027d_vector_type (struct d_info *di)
3028{
3029 char peek;
3030 struct demangle_component *dim;
3031
3032 peek = d_peek_char (di);
3033 if (peek == '_')
3034 {
3035 d_advance (di, 1);
3036 dim = d_expression (di);
3037 }
3038 else
3039 dim = d_number_component (di);
3040
3041 if (dim == NULL)
3042 return NULL;
3043
3044 if (! d_check_char (di, '_'))
3045 return NULL;
3046
3047 return d_make_comp (di, DEMANGLE_COMPONENT_VECTOR_TYPE, dim,
3048 cplus_demangle_type (di));
3049}
3050
bd6946d1 3051/* <pointer-to-member-type> ::= M <(class) type> <(member) type> */
69afa80d 3052
5e777af5 3053static struct demangle_component *
9486db4f 3054d_pointer_to_member_type (struct d_info *di)
69afa80d 3055{
5e777af5
ILT		 3056 struct demangle_component *cl;
3057 struct demangle_component *mem;
69afa80d 3058
5165f125 3059 if (! d_check_char (di, 'M'))
bd6946d1 3060 return NULL;
69afa80d 3061
5e777af5 3062 cl = cplus_demangle_type (di);
0861bec8 3063 if (cl == NULL)
771904f1 3064 return NULL;
69afa80d 3065
0861bec8
JM		 3066 /* The ABI says, "The type of a non-static member function is considered
3067 to be different, for the purposes of substitution, from the type of a
3068 namespace-scope or static member function whose type appears
3069 similar. The types of two non-static member functions are considered
3070 to be different, for the purposes of substitution, if the functions
3071 are members of different classes. In other words, for the purposes of
3072 substitution, the class of which the function is a member is
3073 considered part of the type of function."
3074
3075 For a pointer to member function, this call to cplus_demangle_type
3076 will end up adding a (possibly qualified) non-member function type to
3077 the substitution table, which is not correct; however, the member
3078 function type will never be used in a substitution, so putting the
3079 wrong type in the substitution table is harmless. */
3080
3081 mem = cplus_demangle_type (di);
3082 if (mem == NULL)
3083 return NULL;
022d4166 3084
5e777af5 3085 return d_make_comp (di, DEMANGLE_COMPONENT_PTRMEM_TYPE, cl, mem);
69afa80d
AS		 3086}
3087
d5f4eddd
JM		 3088/* <non-negative number> _ */
3089
bfbc839a 3090static int
d5f4eddd
JM		 3091d_compact_number (struct d_info *di)
3092{
bfbc839a 3093 int num;
d5f4eddd
JM		 3094 if (d_peek_char (di) == '_')
3095 num = 0;
3096 else if (d_peek_char (di) == 'n')
3097 return -1;
3098 else
3099 num = d_number (di) + 1;
3100
bfbc839a 3101 if (num < 0 || ! d_check_char (di, '_'))
d5f4eddd
JM		 3102 return -1;
3103 return num;
3104}
3105
bd6946d1
ILT		 3106/* <template-param> ::= T_
3107 ::= T <(parameter-2 non-negative) number> _
3108*/
69afa80d 3109
5e777af5 3110static struct demangle_component *
9486db4f 3111d_template_param (struct d_info *di)
69afa80d 3112{
bfbc839a 3113 int param;
69afa80d 3114
5165f125 3115 if (! d_check_char (di, 'T'))
bd6946d1 3116 return NULL;
69afa80d 3117
d5f4eddd
JM		 3118 param = d_compact_number (di);
3119 if (param < 0)
bd6946d1 3120 return NULL;
69afa80d 3121
bd6946d1 3122 return d_make_template_param (di, param);
69afa80d
AS		 3123}
3124
bd6946d1
ILT		 3125/* <template-args> ::= I <template-arg>+ E */
3126
5e777af5 3127static struct demangle_component *
9486db4f 3128d_template_args (struct d_info *di)
34bbc4c5
JM		 3129{
3130 if (d_peek_char (di) != 'I'
3131 && d_peek_char (di) != 'J')
3132 return NULL;
3133 d_advance (di, 1);
3134
3135 return d_template_args_1 (di);
3136}
3137
3138/* <template-arg>* E */
3139
3140static struct demangle_component *
3141d_template_args_1 (struct d_info *di)
69afa80d 3142{
5e777af5
ILT		 3143 struct demangle_component *hold_last_name;
3144 struct demangle_component *al;
3145 struct demangle_component **pal;
69afa80d 3146
bd6946d1
ILT		 3147 /* Preserve the last name we saw--don't let the template arguments
3148 clobber it, as that would give us the wrong name for a subsequent
3149 constructor or destructor. */
3150 hold_last_name = di->last_name;
69afa80d 3151
38179091
JM		 3152 if (d_peek_char (di) == 'E')
3153 {
3154 /* An argument pack can be empty. */
3155 d_advance (di, 1);
3156 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL);
3157 }
3158
bd6946d1
ILT		 3159 al = NULL;
3160 pal = &al;
69afa80d
AS		 3161 while (1)
3162 {
5e777af5 3163 struct demangle_component *a;
bd6946d1
ILT		 3164
3165 a = d_template_arg (di);
3166 if (a == NULL)
3167 return NULL;
3168
5e777af5 3169 *pal = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, a, NULL);
81dc098b
ILT		 3170 if (*pal == NULL)
3171 return NULL;
bd6946d1
ILT		 3172 pal = &d_right (*pal);
3173
3174 if (d_peek_char (di) == 'E')
051664b0 3175 {
bd6946d1
ILT		 3176 d_advance (di, 1);
3177 break;
051664b0 3178 }
69afa80d
AS		 3179 }
3180
bd6946d1
ILT		 3181 di->last_name = hold_last_name;
3182
3183 return al;
69afa80d
AS		 3184}
3185
bd6946d1
ILT		 3186/* <template-arg> ::= <type>
3187 ::= X <expression> E
3188 ::= <expr-primary>
3189*/
69afa80d 3190
5e777af5 3191static struct demangle_component *
9486db4f 3192d_template_arg (struct d_info *di)
69afa80d 3193{
5e777af5 3194 struct demangle_component *ret;
051664b0 3195
bd6946d1 3196 switch (d_peek_char (di))
69afa80d 3197 {
bd6946d1
ILT		 3198 case 'X':
3199 d_advance (di, 1);
3200 ret = d_expression (di);
5165f125 3201 if (! d_check_char (di, 'E'))
bd6946d1
ILT		 3202 return NULL;
3203 return ret;
28a34ec1 3204
bd6946d1
ILT		 3205 case 'L':
3206 return d_expr_primary (di);
69afa80d 3207
38179091 3208 case 'I':
4b6aaa99 3209 case 'J':
38179091
JM		 3210 /* An argument pack. */
3211 return d_template_args (di);
3212
bd6946d1 3213 default:
5e777af5 3214 return cplus_demangle_type (di);
31e0ab1f 3215 }
69afa80d
AS		 3216}
3217
4b6aaa99
JM		 3218/* Parse a sequence of expressions until we hit the terminator
3219 character. */
5a3d7e74
JM		 3220
3221static struct demangle_component *
4b6aaa99 3222d_exprlist (struct d_info *di, char terminator)
5a3d7e74
JM		 3223{
3224 struct demangle_component *list = NULL;
3225 struct demangle_component **p = &list;
3226
4b6aaa99 3227 if (d_peek_char (di) == terminator)
38179091
JM		 3228 {
3229 d_advance (di, 1);
3230 return d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, NULL, NULL);
3231 }
3232
5a3d7e74
JM		 3233 while (1)
3234 {
3235 struct demangle_component *arg = d_expression (di);
3236 if (arg == NULL)
3237 return NULL;
3238
3239 *p = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, arg, NULL);
3240 if (*p == NULL)
3241 return NULL;
3242 p = &d_right (*p);
3243
4b6aaa99 3244 if (d_peek_char (di) == terminator)
5a3d7e74
JM		 3245 {
3246 d_advance (di, 1);
3247 break;
3248 }
3249 }
3250
3251 return list;
3252}
3253
aefa74bd
JM		 3254/* Returns nonzero iff OP is an operator for a C++ cast: const_cast,
3255 dynamic_cast, static_cast or reinterpret_cast. */
3256
3257static int
3258op_is_new_cast (struct demangle_component *op)
3259{
3260 const char *code = op->u.s_operator.op->code;
3261 return (code[1] == 'c'
3262 && (code[0] == 's' || code[0] == 'd'
3263 || code[0] == 'c' || code[0] == 'r'));
3264}
3265
bd6946d1
ILT		 3266/* <expression> ::= <(unary) operator-name> <expression>
3267 ::= <(binary) operator-name> <expression> <expression>
3268 ::= <(trinary) operator-name> <expression> <expression> <expression>
5a3d7e74 3269 ::= cl <expression>+ E
bd6946d1
ILT		 3270 ::= st <type>
3271 ::= <template-param>
3272 ::= sr <type> <unqualified-name>
3273 ::= sr <type> <unqualified-name> <template-args>
3274 ::= <expr-primary>
3275*/
3276
85d09f61
CC		 3277static inline struct demangle_component *
3278d_expression_1 (struct d_info *di)
69afa80d 3279{
bd6946d1 3280 char peek;
69afa80d 3281
bd6946d1
ILT		 3282 peek = d_peek_char (di);
3283 if (peek == 'L')
3284 return d_expr_primary (di);
3285 else if (peek == 'T')
3286 return d_template_param (di);
3287 else if (peek == 's' && d_peek_next_char (di) == 'r')
69afa80d 3288 {
5e777af5
ILT		 3289 struct demangle_component *type;
3290 struct demangle_component *name;
69afa80d 3291
bd6946d1 3292 d_advance (di, 2);
5e777af5 3293 type = cplus_demangle_type (di);
bd6946d1
ILT		 3294 name = d_unqualified_name (di);
3295 if (d_peek_char (di) != 'I')
5e777af5 3296 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type, name);
bd6946d1 3297 else
5e777af5
ILT		 3298 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type,
3299 d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
bd6946d1 3300 d_template_args (di)));
5d69ba1f 3301 }
6afcfe0a
JM		 3302 else if (peek == 's' && d_peek_next_char (di) == 'p')
3303 {
3304 d_advance (di, 2);
3305 return d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
85d09f61 3306 d_expression_1 (di), NULL);
6afcfe0a 3307 }
448545cb 3308 else if (peek == 'f' && d_peek_next_char (di) == 'p')
5a3d7e74 3309 {
448545cb
JM		 3310 /* Function parameter used in a late-specified return type. */
3311 int index;
5a3d7e74 3312 d_advance (di, 2);
a517066d
JM		 3313 if (d_peek_char (di) == 'T')
3314 {
3315 /* 'this' parameter. */
3316 d_advance (di, 1);
3317 index = 0;
3318 }
3319 else
3320 {
bfbc839a
MB		 3321 index = d_compact_number (di);
3322 if (index == INT_MAX || index == -1)
a517066d 3323 return NULL;
e1fe3c69 3324 index++;
a517066d 3325 }
448545cb 3326 return d_make_function_param (di, index);
5a3d7e74 3327 }
f000c6a7
JM		 3328 else if (IS_DIGIT (peek)
3329 || (peek == 'o' && d_peek_next_char (di) == 'n'))
38179091
JM		 3330 {
3331 /* We can get an unqualified name as an expression in the case of
f000c6a7
JM		 3332 a dependent function call, i.e. decltype(f(t)). */
3333 struct demangle_component *name;
3334
3335 if (peek == 'o')
3336 /* operator-function-id, i.e. operator+(t). */
3337 d_advance (di, 2);
3338
3339 name = d_unqualified_name (di);
38179091
JM		 3340 if (name == NULL)
3341 return NULL;
3342 if (d_peek_char (di) == 'I')
3343 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
3344 d_template_args (di));
3345 else
3346 return name;
3347 }
4b6aaa99
JM		 3348 else if ((peek == 'i' || peek == 't')
3349 && d_peek_next_char (di) == 'l')
3350 {
3351 /* Brace-enclosed initializer list, untyped or typed. */
3352 struct demangle_component *type = NULL;
4be5c72c 3353 d_advance (di, 2);
4b6aaa99
JM		 3354 if (peek == 't')
3355 type = cplus_demangle_type (di);
76d96a5a
MM		 3356 if (!d_peek_next_char (di))
3357 return NULL;
4b6aaa99
JM		 3358 return d_make_comp (di, DEMANGLE_COMPONENT_INITIALIZER_LIST,
3359 type, d_exprlist (di, 'E'));
3360 }
bd6946d1 3361 else
69afa80d 3362 {
5e777af5 3363 struct demangle_component *op;
4b6aaa99 3364 const char *code = NULL;
bd6946d1 3365 int args;
69afa80d 3366
bd6946d1
ILT		 3367 op = d_operator_name (di);
3368 if (op == NULL)
3369 return NULL;
69afa80d 3370
5e777af5 3371 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
4b6aaa99
JM		 3372 {
3373 code = op->u.s_operator.op->code;
3374 di->expansion += op->u.s_operator.op->len - 2;
3375 if (strcmp (code, "st") == 0)
3376 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
3377 cplus_demangle_type (di));
3378 }
69afa80d 3379
bd6946d1
ILT		 3380 switch (op->type)
3381 {
3382 default:
3383 return NULL;
5e777af5 3384 case DEMANGLE_COMPONENT_OPERATOR:
bd6946d1
ILT		 3385 args = op->u.s_operator.op->args;
3386 break;
5e777af5 3387 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
bd6946d1
ILT		 3388 args = op->u.s_extended_operator.args;
3389 break;
5e777af5 3390 case DEMANGLE_COMPONENT_CAST:
30471e01 3391 args = 1;
bd6946d1
ILT		 3392 break;
3393 }
3394
3395 switch (args)
3396 {
4b6aaa99
JM		 3397 case 0:
3398 return d_make_comp (di, DEMANGLE_COMPONENT_NULLARY, op, NULL);
3399
bd6946d1 3400 case 1:
448545cb
JM		 3401 {
3402 struct demangle_component *operand;
4b6aaa99
JM		 3403 int suffix = 0;
3404
3405 if (code && (code[0] == 'p' || code[0] == 'm')
3406 && code[1] == code[0])
3407 /* pp_ and mm_ are the prefix variants. */
3408 suffix = !d_check_char (di, '_');
3409
448545cb
JM		 3410 if (op->type == DEMANGLE_COMPONENT_CAST
3411 && d_check_char (di, '_'))
4b6aaa99 3412 operand = d_exprlist (di, 'E');
34bbc4c5
JM		 3413 else if (code && !strcmp (code, "sP"))
3414 operand = d_template_args_1 (di);
448545cb 3415 else
85d09f61 3416 operand = d_expression_1 (di);
4b6aaa99
JM		 3417
3418 if (suffix)
3419 /* Indicate the suffix variant for d_print_comp. */
7cd7dbda
NS		 3420 operand = d_make_comp (di, DEMANGLE_COMPONENT_BINARY_ARGS,
3421 operand, operand);
3422
3423 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op, operand);
448545cb 3424 }
bd6946d1
ILT		 3425 case 2:
3426 {
5e777af5 3427 struct demangle_component *left;
5a3d7e74 3428 struct demangle_component *right;
bd6946d1 3429
76d96a5a
MM		 3430 if (code == NULL)
3431 return NULL;
aefa74bd
JM		 3432 if (op_is_new_cast (op))
3433 left = cplus_demangle_type (di);
7864eaaf
JM		 3434 else if (code[0] == 'f')
3435 /* fold-expression. */
3436 left = d_operator_name (di);
aefa74bd 3437 else
85d09f61 3438 left = d_expression_1 (di);
f000c6a7 3439 if (!strcmp (code, "cl"))
4b6aaa99 3440 right = d_exprlist (di, 'E');
f000c6a7
JM		 3441 else if (!strcmp (code, "dt") || !strcmp (code, "pt"))
3442 {
3443 right = d_unqualified_name (di);
3444 if (d_peek_char (di) == 'I')
3445 right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE,
3446 right, d_template_args (di));
3447 }
5a3d7e74 3448 else
85d09f61 3449 right = d_expression_1 (di);
5a3d7e74 3450
5e777af5
ILT		 3451 return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op,
3452 d_make_comp (di,
3453 DEMANGLE_COMPONENT_BINARY_ARGS,
5a3d7e74 3454 left, right));
bd6946d1
ILT		 3455 }
3456 case 3:
3457 {
5e777af5
ILT		 3458 struct demangle_component *first;
3459 struct demangle_component *second;
4b6aaa99 3460 struct demangle_component *third;
bd6946d1 3461
76d96a5a
MM		 3462 if (code == NULL)
3463 return NULL;
3464 else if (!strcmp (code, "qu"))
4b6aaa99
JM		 3465 {
3466 /* ?: expression. */
85d09f61
CC		 3467 first = d_expression_1 (di);
3468 second = d_expression_1 (di);
3469 third = d_expression_1 (di);
168126e5
MW		 3470 if (third == NULL)
3471 return NULL;
4b6aaa99 3472 }
7864eaaf
JM		 3473 else if (code[0] == 'f')
3474 {
3475 /* fold-expression. */
3476 first = d_operator_name (di);
3477 second = d_expression_1 (di);
3478 third = d_expression_1 (di);
168126e5
MW		 3479 if (third == NULL)
3480 return NULL;
7864eaaf 3481 }
4b6aaa99
JM		 3482 else if (code[0] == 'n')
3483 {
3484 /* new-expression. */
3485 if (code[1] != 'w' && code[1] != 'a')
3486 return NULL;
3487 first = d_exprlist (di, '_');
3488 second = cplus_demangle_type (di);
3489 if (d_peek_char (di) == 'E')
3490 {
3491 d_advance (di, 1);
3492 third = NULL;
3493 }
3494 else if (d_peek_char (di) == 'p'
3495 && d_peek_next_char (di) == 'i')
3496 {
3497 /* Parenthesized initializer. */
3498 d_advance (di, 2);
3499 third = d_exprlist (di, 'E');
3500 }
3501 else if (d_peek_char (di) == 'i'
3502 && d_peek_next_char (di) == 'l')
3503 /* initializer-list. */
85d09f61 3504 third = d_expression_1 (di);
4b6aaa99
JM		 3505 else
3506 return NULL;
3507 }
3508 else
3509 return NULL;
5e777af5
ILT		 3510 return d_make_comp (di, DEMANGLE_COMPONENT_TRINARY, op,
3511 d_make_comp (di,
3512 DEMANGLE_COMPONENT_TRINARY_ARG1,
3513 first,
bd6946d1 3514 d_make_comp (di,
5e777af5 3515 DEMANGLE_COMPONENT_TRINARY_ARG2,
4b6aaa99 3516 second, third)));
bd6946d1
ILT		 3517 }
3518 default:
3519 return NULL;
3520 }
69afa80d
AS		 3521 }
3522}
3523
85d09f61
CC		 3524static struct demangle_component *
3525d_expression (struct d_info *di)
3526{
3527 struct demangle_component *ret;
3528 int was_expression = di->is_expression;
3529
3530 di->is_expression = 1;
3531 ret = d_expression_1 (di);
3532 di->is_expression = was_expression;
3533 return ret;
3534}
3535
bd6946d1
ILT		 3536/* <expr-primary> ::= L <type> <(value) number> E
3537 ::= L <type> <(value) float> E
3538 ::= L <mangled-name> E
3539*/
92a16bbe 3540
5e777af5 3541static struct demangle_component *
9486db4f 3542d_expr_primary (struct d_info *di)
92a16bbe 3543{
5e777af5 3544 struct demangle_component *ret;
92a16bbe 3545
5165f125 3546 if (! d_check_char (di, 'L'))
bd6946d1 3547 return NULL;
448545cb
JM		 3548 if (d_peek_char (di) == '_'
3549 /* Workaround for G++ bug; see comment in write_template_arg. */
3550 || d_peek_char (di) == 'Z')
5e777af5 3551 ret = cplus_demangle_mangled_name (di, 0);
bd6946d1 3552 else
92a16bbe 3553 {
5e777af5
ILT		 3554 struct demangle_component *type;
3555 enum demangle_component_type t;
bd6946d1
ILT		 3556 const char *s;
3557
5e777af5 3558 type = cplus_demangle_type (di);
00a5aa9c
ILT		 3559 if (type == NULL)
3560 return NULL;
bd6946d1 3561
2d6c4025
ILT		 3562 /* If we have a type we know how to print, we aren't going to
3563 print the type name itself. */
5e777af5 3564 if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2d6c4025
ILT		 3565 && type->u.s_builtin.type->print != D_PRINT_DEFAULT)
3566 di->expansion -= type->u.s_builtin.type->len;
3567
bd6946d1
ILT		 3568 /* Rather than try to interpret the literal value, we just
3569 collect it as a string. Note that it's possible to have a
3570 floating point literal here. The ABI specifies that the
3571 format of such literals is machine independent. That's fine,
3572 but what's not fine is that versions of g++ up to 3.2 with
3573 -fabi-version=1 used upper case letters in the hex constant,
3574 and dumped out gcc's internal representation. That makes it
3575 hard to tell where the constant ends, and hard to dump the
3576 constant in any readable form anyhow. We don't attempt to
3577 handle these cases. */
3578
5e777af5 3579 t = DEMANGLE_COMPONENT_LITERAL;
374caa50
ILT		 3580 if (d_peek_char (di) == 'n')
3581 {
5e777af5 3582 t = DEMANGLE_COMPONENT_LITERAL_NEG;
374caa50
ILT		 3583 d_advance (di, 1);
3584 }
bd6946d1
ILT		 3585 s = d_str (di);
3586 while (d_peek_char (di) != 'E')
8c7262af
ILT		 3587 {
3588 if (d_peek_char (di) == '\0')
3589 return NULL;
3590 d_advance (di, 1);
3591 }
374caa50 3592 ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s));
bd6946d1 3593 }
5165f125 3594 if (! d_check_char (di, 'E'))
bd6946d1
ILT		 3595 return NULL;
3596 return ret;
92a16bbe
AS		 3597}
3598
bd6946d1
ILT		 3599/* <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>]
3600 ::= Z <(function) encoding> E s [<discriminator>]
622aac0b 3601 ::= Z <(function) encoding> E d [<parameter> number>] _ <entity name>
bd6946d1 3602*/
92a16bbe 3603
5e777af5 3604static struct demangle_component *
7cd7dbda 3605d_local_name (struct d_info *di)
92a16bbe 3606{
5e777af5 3607 struct demangle_component *function;
9d89efeb 3608 struct demangle_component *name;
92a16bbe 3609
5165f125 3610 if (! d_check_char (di, 'Z'))
bd6946d1 3611 return NULL;
92a16bbe 3612
ad07f5e5 3613 function = d_encoding (di, 0);
7cd7dbda
NS		 3614 if (!function)
3615 return NULL;
92a16bbe 3616
5165f125 3617 if (! d_check_char (di, 'E'))
bd6946d1 3618 return NULL;
92a16bbe 3619
bd6946d1 3620 if (d_peek_char (di) == 's')
92a16bbe 3621 {
bd6946d1
ILT		 3622 d_advance (di, 1);
3623 if (! d_discriminator (di))
3624 return NULL;
9d89efeb 3625 name = d_make_name (di, "string literal", sizeof "string literal" - 1);
92a16bbe 3626 }
bd6946d1 3627 else
92a16bbe 3628 {
d5f4eddd
JM		 3629 int num = -1;
3630
3631 if (d_peek_char (di) == 'd')
3632 {
3633 /* Default argument scope: d <number> _. */
3634 d_advance (di, 1);
3635 num = d_compact_number (di);
3636 if (num < 0)
3637 return NULL;
3638 }
92a16bbe 3639
7cd7dbda 3640 name = d_name (di);
fa0cdfb6 3641
9d89efeb 3642 if (name
fa0cdfb6
NS		 3643 /* Lambdas and unnamed types have internal discriminators
3644 and are not functions. */
9d89efeb 3645 && name->type != DEMANGLE_COMPONENT_LAMBDA
fa0cdfb6
NS		 3646 && name->type != DEMANGLE_COMPONENT_UNNAMED_TYPE)
3647 {
fa0cdfb6
NS		 3648 /* Read and ignore an optional discriminator. */
3649 if (! d_discriminator (di))
3650 return NULL;
3651 }
9d89efeb 3652
d5f4eddd
JM		 3653 if (num >= 0)
3654 name = d_make_default_arg (di, num, name);
92a16bbe 3655 }
9d89efeb 3656
68aac47f
NS		 3657 /* Elide the return type of the containing function so as to not
3658 confuse the user thinking it is the return type of whatever local
3659 function we might be containing. */
3660 if (function->type == DEMANGLE_COMPONENT_TYPED_NAME
3661 && d_right (function)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
3662 d_left (d_right (function)) = NULL;
3663
9d89efeb 3664 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
92a16bbe
AS		 3665}
3666
f6efea51
MT		 3667/* <discriminator> ::= _ <number> # when number < 10
3668 ::= __ <number> _ # when number >= 10
3669
3670 <discriminator> ::= _ <number> # when number >=10
3671 is also accepted to support gcc versions that wrongly mangled that way.
69afa80d 3672
bd6946d1
ILT		 3673 We demangle the discriminator, but we don't print it out. FIXME:
3674 We should print it out in verbose mode. */
92a16bbe 3675
bd6946d1 3676static int
9486db4f 3677d_discriminator (struct d_info *di)
bd6946d1 3678{
f6efea51 3679 int discrim, num_underscores = 1;
92a16bbe 3680
bd6946d1
ILT		 3681 if (d_peek_char (di) != '_')
3682 return 1;
3683 d_advance (di, 1);
f6efea51
MT		 3684 if (d_peek_char (di) == '_')
3685 {
3686 ++num_underscores;
3687 d_advance (di, 1);
3688 }
3689
bd6946d1
ILT		 3690 discrim = d_number (di);
3691 if (discrim < 0)
3692 return 0;
f6efea51
MT		 3693 if (num_underscores > 1 && discrim >= 10)
3694 {
3695 if (d_peek_char (di) == '_')
3696 d_advance (di, 1);
3697 else
3698 return 0;
3699 }
3700
bd6946d1
ILT		 3701 return 1;
3702}
69afa80d 3703
d5f4eddd
JM		 3704/* <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ */
3705
3706static struct demangle_component *
3707d_lambda (struct d_info *di)
3708{
3709 struct demangle_component *tl;
3710 struct demangle_component *ret;
3711 int num;
3712
3713 if (! d_check_char (di, 'U'))
3714 return NULL;
3715 if (! d_check_char (di, 'l'))
3716 return NULL;
3717
3718 tl = d_parmlist (di);
3719 if (tl == NULL)
3720 return NULL;
3721
3722 if (! d_check_char (di, 'E'))
3723 return NULL;
3724
3725 num = d_compact_number (di);
3726 if (num < 0)
3727 return NULL;
3728
3729 ret = d_make_empty (di);
3730 if (ret)
3731 {
3732 ret->type = DEMANGLE_COMPONENT_LAMBDA;
3733 ret->u.s_unary_num.sub = tl;
3734 ret->u.s_unary_num.num = num;
3735 }
3736
3737 if (! d_add_substitution (di, ret))
3738 return NULL;
3739
3740 return ret;
3741}
3742
3743/* <unnamed-type-name> ::= Ut [ <nonnegative number> ] _ */
3744
3745static struct demangle_component *
3746d_unnamed_type (struct d_info *di)
3747{
3748 struct demangle_component *ret;
bfbc839a 3749 int num;
d5f4eddd
JM		 3750
3751 if (! d_check_char (di, 'U'))
3752 return NULL;
3753 if (! d_check_char (di, 't'))
3754 return NULL;
3755
3756 num = d_compact_number (di);
3757 if (num < 0)
3758 return NULL;
3759
3760 ret = d_make_empty (di);
3761 if (ret)
3762 {
3763 ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE;
3764 ret->u.s_number.number = num;
3765 }
3766
3767 if (! d_add_substitution (di, ret))
3768 return NULL;
3769
3770 return ret;
3771}
3772
2d2b02c4
CC		 3773/* <clone-suffix> ::= [ . <clone-type-identifier> ] [ . <nonnegative number> ]*
3774*/
3775
3776static struct demangle_component *
3777d_clone_suffix (struct d_info *di, struct demangle_component *encoding)
3778{
3779 const char *suffix = d_str (di);
3780 const char *pend = suffix;
3781 struct demangle_component *n;
3782
3783 if (*pend == '.' && (IS_LOWER (pend[1]) || pend[1] == '_'))
3784 {
3785 pend += 2;
3786 while (IS_LOWER (*pend) || *pend == '_')
3787 ++pend;
3788 }
3789 while (*pend == '.' && IS_DIGIT (pend[1]))
3790 {
3791 pend += 2;
3792 while (IS_DIGIT (*pend))
3793 ++pend;
3794 }
3795 d_advance (di, pend - suffix);
3796 n = d_make_name (di, suffix, pend - suffix);
3797 return d_make_comp (di, DEMANGLE_COMPONENT_CLONE, encoding, n);
3798}
3799
bd6946d1 3800/* Add a new substitution. */
69afa80d 3801
bd6946d1 3802static int
9486db4f 3803d_add_substitution (struct d_info *di, struct demangle_component *dc)
69afa80d 3804{
81dc098b
ILT		 3805 if (dc == NULL)
3806 return 0;
bd6946d1
ILT		 3807 if (di->next_sub >= di->num_subs)
3808 return 0;
3809 di->subs[di->next_sub] = dc;
3810 ++di->next_sub;
3811 return 1;
3812}
3813
3814/* <substitution> ::= S <seq-id> _
3815 ::= S_
3816 ::= St
3817 ::= Sa
3818 ::= Sb
3819 ::= Ss
3820 ::= Si
3821 ::= So
3822 ::= Sd
374caa50
ILT		 3823
3824 If PREFIX is non-zero, then this type is being used as a prefix in
3825 a qualified name. In this case, for the standard substitutions, we
3826 need to check whether we are being used as a prefix for a
3827 constructor or destructor, and return a full template name.
3828 Otherwise we will get something like std::iostream::~iostream()
3829 which does not correspond particularly well to any function which
3830 actually appears in the source.
bd6946d1 3831*/
69afa80d 3832
374caa50
ILT		 3833static const struct d_standard_sub_info standard_subs[] =
3834{
2d6c4025
ILT		 3835 { 't', NL ("std"),
3836 NL ("std"),
3837 NULL, 0 },
3838 { 'a', NL ("std::allocator"),
3839 NL ("std::allocator"),
3840 NL ("allocator") },
3841 { 'b', NL ("std::basic_string"),
3842 NL ("std::basic_string"),
3843 NL ("basic_string") },
3844 { 's', NL ("std::string"),
3845 NL ("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
3846 NL ("basic_string") },
3847 { 'i', NL ("std::istream"),
3848 NL ("std::basic_istream<char, std::char_traits<char> >"),
3849 NL ("basic_istream") },
3850 { 'o', NL ("std::ostream"),
3851 NL ("std::basic_ostream<char, std::char_traits<char> >"),
3852 NL ("basic_ostream") },
3853 { 'd', NL ("std::iostream"),
3854 NL ("std::basic_iostream<char, std::char_traits<char> >"),
3855 NL ("basic_iostream") }
374caa50
ILT		 3856};
3857
5e777af5 3858static struct demangle_component *
9486db4f 3859d_substitution (struct d_info *di, int prefix)
bd6946d1
ILT		 3860{
3861 char c;
69afa80d 3862
5165f125 3863 if (! d_check_char (di, 'S'))
bd6946d1 3864 return NULL;
056400f1 3865
bd6946d1 3866 c = d_next_char (di);
a51753e4 3867 if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
69afa80d 3868 {
eeda7b98 3869 unsigned int id;
69afa80d 3870
bd6946d1
ILT		 3871 id = 0;
3872 if (c != '_')
69afa80d 3873 {
bd6946d1 3874 do
69afa80d 3875 {
eeda7b98
ILT		 3876 unsigned int new_id;
3877
bd6946d1 3878 if (IS_DIGIT (c))
eeda7b98 3879 new_id = id * 36 + c - '0';
a51753e4 3880 else if (IS_UPPER (c))
eeda7b98 3881 new_id = id * 36 + c - 'A' + 10;
bd6946d1
ILT		 3882 else
3883 return NULL;
eeda7b98 3884 if (new_id < id)
53e3e587 3885 return NULL;
eeda7b98 3886 id = new_id;
bd6946d1 3887 c = d_next_char (di);
69afa80d 3888 }
bd6946d1 3889 while (c != '_');
69afa80d 3890
bd6946d1 3891 ++id;
69afa80d 3892 }
69afa80d 3893
eeda7b98 3894 if (id >= (unsigned int) di->next_sub)
bd6946d1 3895 return NULL;
69afa80d 3896
bd6946d1 3897 return di->subs[id];
69afa80d 3898 }
bd6946d1 3899 else
69afa80d 3900 {
374caa50
ILT		 3901 int verbose;
3902 const struct d_standard_sub_info *p;
3903 const struct d_standard_sub_info *pend;
3904
3905 verbose = (di->options & DMGL_VERBOSE) != 0;
3906 if (! verbose && prefix)
7dce2eff 3907 {
374caa50
ILT		 3908 char peek;
3909
3910 peek = d_peek_char (di);
3911 if (peek == 'C' || peek == 'D')
3912 verbose = 1;
69afa80d 3913 }
374caa50
ILT		 3914
3915 pend = (&standard_subs[0]
3916 + sizeof standard_subs / sizeof standard_subs[0]);
3917 for (p = &standard_subs[0]; p < pend; ++p)
3918 {
3919 if (c == p->code)
3920 {
2d6c4025
ILT		 3921 const char *s;
3922 int len;
99e77371 3923 struct demangle_component *dc;
2d6c4025 3924
374caa50 3925 if (p->set_last_name != NULL)
2d6c4025
ILT		 3926 di->last_name = d_make_sub (di, p->set_last_name,
3927 p->set_last_name_len);
374caa50 3928 if (verbose)
2d6c4025
ILT		 3929 {
3930 s = p->full_expansion;
3931 len = p->full_len;
3932 }
374caa50 3933 else
2d6c4025
ILT		 3934 {
3935 s = p->simple_expansion;
3936 len = p->simple_len;
3937 }
3938 di->expansion += len;
99e77371 3939 dc = d_make_sub (di, s, len);
00eaaa50
JM		 3940 if (d_peek_char (di) == 'B')
3941 {
3942 /* If there are ABI tags on the abbreviation, it becomes
3943 a substitution candidate. */
99e77371 3944 dc = d_abi_tags (di, dc);
13b6ef76
MW		 3945 if (! d_add_substitution (di, dc))
3946 return NULL;
00eaaa50 3947 }
99e77371 3948 return dc;
374caa50
ILT		 3949 }
3950 }
3951
3952 return NULL;
69afa80d 3953 }
69afa80d
AS		 3954}
3955
85d09f61
CC		 3956static void
3957d_checkpoint (struct d_info *di, struct d_info_checkpoint *checkpoint)
3958{
3959 checkpoint->n = di->n;
3960 checkpoint->next_comp = di->next_comp;
3961 checkpoint->next_sub = di->next_sub;
85d09f61
CC		 3962 checkpoint->expansion = di->expansion;
3963}
3964
3965static void
3966d_backtrack (struct d_info *di, struct d_info_checkpoint *checkpoint)
3967{
3968 di->n = checkpoint->n;
3969 di->next_comp = checkpoint->next_comp;
3970 di->next_sub = checkpoint->next_sub;
85d09f61
CC		 3971 di->expansion = checkpoint->expansion;
3972}
3973
456cc5cf 3974/* Initialize a growable string. */
69afa80d 3975
bd6946d1 3976static void
456cc5cf 3977d_growable_string_init (struct d_growable_string *dgs, size_t estimate)
bd6946d1 3978{
456cc5cf
SB		 3979 dgs->buf = NULL;
3980 dgs->len = 0;
3981 dgs->alc = 0;
3982 dgs->allocation_failure = 0;
69afa80d 3983
456cc5cf
SB		 3984 if (estimate > 0)
3985 d_growable_string_resize (dgs, estimate);
3986}
3987
3988/* Grow a growable string to a given size. */
3989
3990static inline void
3991d_growable_string_resize (struct d_growable_string *dgs, size_t need)
3992{
3993 size_t newalc;
3994 char *newbuf;
3995
3996 if (dgs->allocation_failure)
81dc098b 3997 return;
0870bfd6 3998
456cc5cf
SB		 3999 /* Start allocation at two bytes to avoid any possibility of confusion
4000 with the special value of 1 used as a return in *palc to indicate
4001 allocation failures. */
4002 newalc = dgs->alc > 0 ? dgs->alc : 2;
4003 while (newalc < need)
4004 newalc <<= 1;
4005
4006 newbuf = (char *) realloc (dgs->buf, newalc);
4007 if (newbuf == NULL)
4008 {
4009 free (dgs->buf);
4010 dgs->buf = NULL;
4011 dgs->len = 0;
4012 dgs->alc = 0;
4013 dgs->allocation_failure = 1;
4014 return;
31e0ab1f 4015 }
456cc5cf
SB		 4016 dgs->buf = newbuf;
4017 dgs->alc = newalc;
bd6946d1 4018}
820555e6 4019
456cc5cf 4020/* Append a buffer to a growable string. */
820555e6 4021
456cc5cf
SB		 4022static inline void
4023d_growable_string_append_buffer (struct d_growable_string *dgs,
4024 const char *s, size_t l)
bd6946d1 4025{
456cc5cf 4026 size_t need;
820555e6 4027
456cc5cf
SB		 4028 need = dgs->len + l + 1;
4029 if (need > dgs->alc)
4030 d_growable_string_resize (dgs, need);
4031
4032 if (dgs->allocation_failure)
4033 return;
4034
4035 memcpy (dgs->buf + dgs->len, s, l);
4036 dgs->buf[dgs->len + l] = '\0';
4037 dgs->len += l;
69afa80d
AS		 4038}
4039
456cc5cf 4040/* Bridge growable strings to the callback mechanism. */
bd6946d1
ILT		 4041
4042static void
456cc5cf 4043d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
69afa80d 4044{
456cc5cf 4045 struct d_growable_string *dgs = (struct d_growable_string*) opaque;
69afa80d 4046
456cc5cf 4047 d_growable_string_append_buffer (dgs, s, l);
69afa80d
AS		 4048}
4049
0a15a50e
GB		 4050/* Walk the tree, counting the number of templates encountered, and
4051 the number of times a scope might be saved. These counts will be
4052 used to allocate data structures for d_print_comp, so the logic
4053 here must mirror the logic d_print_comp will use. It is not
4054 important that the resulting numbers are exact, so long as they
4055 are larger than the actual numbers encountered. */
4056
4057static void
4058d_count_templates_scopes (int *num_templates, int *num_scopes,
4059 const struct demangle_component *dc)
4060{
4061 if (dc == NULL)
4062 return;
4063
4064 switch (dc->type)
4065 {
4066 case DEMANGLE_COMPONENT_NAME:
4067 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
4068 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
4069 case DEMANGLE_COMPONENT_SUB_STD:
4070 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
4071 case DEMANGLE_COMPONENT_OPERATOR:
4072 case DEMANGLE_COMPONENT_CHARACTER:
4073 case DEMANGLE_COMPONENT_NUMBER:
4074 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
4075 break;
4076
4077 case DEMANGLE_COMPONENT_TEMPLATE:
4078 (*num_templates)++;
4079 goto recurse_left_right;
4080
4081 case DEMANGLE_COMPONENT_REFERENCE:
4082 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
4083 if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
4084 (*num_scopes)++;
4085 goto recurse_left_right;
4086
4087 case DEMANGLE_COMPONENT_QUAL_NAME:
4088 case DEMANGLE_COMPONENT_LOCAL_NAME:
4089 case DEMANGLE_COMPONENT_TYPED_NAME:
4090 case DEMANGLE_COMPONENT_VTABLE:
4091 case DEMANGLE_COMPONENT_VTT:
4092 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
4093 case DEMANGLE_COMPONENT_TYPEINFO:
4094 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
4095 case DEMANGLE_COMPONENT_TYPEINFO_FN:
4096 case DEMANGLE_COMPONENT_THUNK:
4097 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
4098 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
4099 case DEMANGLE_COMPONENT_JAVA_CLASS:
4100 case DEMANGLE_COMPONENT_GUARD:
4101 case DEMANGLE_COMPONENT_TLS_INIT:
4102 case DEMANGLE_COMPONENT_TLS_WRAPPER:
4103 case DEMANGLE_COMPONENT_REFTEMP:
4104 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
4105 case DEMANGLE_COMPONENT_RESTRICT:
4106 case DEMANGLE_COMPONENT_VOLATILE:
4107 case DEMANGLE_COMPONENT_CONST:
4108 case DEMANGLE_COMPONENT_RESTRICT_THIS:
4109 case DEMANGLE_COMPONENT_VOLATILE_THIS:
4110 case DEMANGLE_COMPONENT_CONST_THIS:
4111 case DEMANGLE_COMPONENT_REFERENCE_THIS:
4112 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
b8fd7909 4113 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
51dc6603
JM		 4114 case DEMANGLE_COMPONENT_NOEXCEPT:
4115 case DEMANGLE_COMPONENT_THROW_SPEC:
0a15a50e
GB		 4116 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
4117 case DEMANGLE_COMPONENT_POINTER:
4118 case DEMANGLE_COMPONENT_COMPLEX:
4119 case DEMANGLE_COMPONENT_IMAGINARY:
4120 case DEMANGLE_COMPONENT_VENDOR_TYPE:
4121 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
4122 case DEMANGLE_COMPONENT_ARRAY_TYPE:
4123 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
0a15a50e
GB		 4124 case DEMANGLE_COMPONENT_VECTOR_TYPE:
4125 case DEMANGLE_COMPONENT_ARGLIST:
4126 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
4be5c72c 4127 case DEMANGLE_COMPONENT_TPARM_OBJ:
0a15a50e
GB		 4128 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
4129 case DEMANGLE_COMPONENT_CAST:
921da198 4130 case DEMANGLE_COMPONENT_CONVERSION:
0a15a50e
GB		 4131 case DEMANGLE_COMPONENT_NULLARY:
4132 case DEMANGLE_COMPONENT_UNARY:
4133 case DEMANGLE_COMPONENT_BINARY:
4134 case DEMANGLE_COMPONENT_BINARY_ARGS:
4135 case DEMANGLE_COMPONENT_TRINARY:
4136 case DEMANGLE_COMPONENT_TRINARY_ARG1:
4137 case DEMANGLE_COMPONENT_TRINARY_ARG2:
4138 case DEMANGLE_COMPONENT_LITERAL:
4139 case DEMANGLE_COMPONENT_LITERAL_NEG:
4140 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
4141 case DEMANGLE_COMPONENT_COMPOUND_NAME:
4142 case DEMANGLE_COMPONENT_DECLTYPE:
4143 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
4144 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
4145 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4146 case DEMANGLE_COMPONENT_TAGGED_NAME:
4147 case DEMANGLE_COMPONENT_CLONE:
4148 recurse_left_right:
4149 d_count_templates_scopes (num_templates, num_scopes,
4150 d_left (dc));
4151 d_count_templates_scopes (num_templates, num_scopes,
4152 d_right (dc));
4153 break;
4154
4155 case DEMANGLE_COMPONENT_CTOR:
4156 d_count_templates_scopes (num_templates, num_scopes,
4157 dc->u.s_ctor.name);
4158 break;
4159
4160 case DEMANGLE_COMPONENT_DTOR:
4161 d_count_templates_scopes (num_templates, num_scopes,
4162 dc->u.s_dtor.name);
4163 break;
4164
4165 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4166 d_count_templates_scopes (num_templates, num_scopes,
4167 dc->u.s_extended_operator.name);
4168 break;
4169
606f9e78
AB		 4170 case DEMANGLE_COMPONENT_FIXED_TYPE:
4171 d_count_templates_scopes (num_templates, num_scopes,
4172 dc->u.s_fixed.length);
4173 break;
4174
0a15a50e
GB		 4175 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
4176 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
4177 d_count_templates_scopes (num_templates, num_scopes,
4178 d_left (dc));
4179 break;
4180
4181 case DEMANGLE_COMPONENT_LAMBDA:
4182 case DEMANGLE_COMPONENT_DEFAULT_ARG:
4183 d_count_templates_scopes (num_templates, num_scopes,
4184 dc->u.s_unary_num.sub);
4185 break;
4186 }
4187}
4188
456cc5cf 4189/* Initialize a print information structure. */
69afa80d 4190
bd6946d1 4191static void
743a99db 4192d_print_init (struct d_print_info *dpi, demangle_callbackref callback,
0a15a50e 4193 void *opaque, const struct demangle_component *dc)
456cc5cf 4194{
456cc5cf
SB		 4195 dpi->len = 0;
4196 dpi->last_char = '\0';
4197 dpi->templates = NULL;
4198 dpi->modifiers = NULL;
f2e6f32e 4199 dpi->pack_index = 0;
9c4d7e52 4200 dpi->flush_count = 0;
456cc5cf
SB		 4201
4202 dpi->callback = callback;
4203 dpi->opaque = opaque;
4204
4205 dpi->demangle_failure = 0;
6b086d35 4206 dpi->recursion = 0;
8e09a726 4207 dpi->is_lambda_arg = 0;
c24d86bc 4208
861c3495
GB		 4209 dpi->component_stack = NULL;
4210
c24d86bc 4211 dpi->saved_scopes = NULL;
0a15a50e 4212 dpi->next_saved_scope = 0;
c24d86bc 4213 dpi->num_saved_scopes = 0;
c24d86bc 4214
0a15a50e
GB		 4215 dpi->copy_templates = NULL;
4216 dpi->next_copy_template = 0;
4217 dpi->num_copy_templates = 0;
c24d86bc 4218
0a15a50e
GB		 4219 d_count_templates_scopes (&dpi->num_copy_templates,
4220 &dpi->num_saved_scopes, dc);
4221 dpi->num_copy_templates *= dpi->num_saved_scopes;
c24d86bc 4222
0a15a50e 4223 dpi->current_template = NULL;
456cc5cf
SB		 4224}
4225
4226/* Indicate that an error occurred during printing, and test for error. */
4227
4228static inline void
9486db4f 4229d_print_error (struct d_print_info *dpi)
3b60dd8e 4230{
456cc5cf
SB		 4231 dpi->demangle_failure = 1;
4232}
4233
4234static inline int
4235d_print_saw_error (struct d_print_info *dpi)
4236{
4237 return dpi->demangle_failure != 0;
4238}
4239
4240/* Flush buffered characters to the callback. */
4241
4242static inline void
4243d_print_flush (struct d_print_info *dpi)
4244{
4245 dpi->buf[dpi->len] = '\0';
4246 dpi->callback (dpi->buf, dpi->len, dpi->opaque);
4247 dpi->len = 0;
9c4d7e52 4248 dpi->flush_count++;
456cc5cf
SB		 4249}
4250
4251/* Append characters and buffers for printing. */
4252
4253static inline void
4254d_append_char (struct d_print_info *dpi, char c)
4255{
4256 if (dpi->len == sizeof (dpi->buf) - 1)
4257 d_print_flush (dpi);
4258
4259 dpi->buf[dpi->len++] = c;
4260 dpi->last_char = c;
4261}
4262
4263static inline void
4264d_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
4265{
4266 size_t i;
4267
4268 for (i = 0; i < l; i++)
4269 d_append_char (dpi, s[i]);
4270}
4271
4272static inline void
4273d_append_string (struct d_print_info *dpi, const char *s)
4274{
4275 d_append_buffer (dpi, s, strlen (s));
4276}
4277
d5f4eddd 4278static inline void
bfbc839a 4279d_append_num (struct d_print_info *dpi, int l)
d5f4eddd
JM		 4280{
4281 char buf[25];
bfbc839a 4282 sprintf (buf,"%d", l);
d5f4eddd
JM		 4283 d_append_string (dpi, buf);
4284}
4285
456cc5cf
SB		 4286static inline char
4287d_last_char (struct d_print_info *dpi)
4288{
4289 return dpi->last_char;
4290}
4291
4292/* Turn components into a human readable string. OPTIONS is the
4293 options bits passed to the demangler. DC is the tree to print.
4294 CALLBACK is a function to call to flush demangled string segments
4295 as they fill the intermediate buffer, and OPAQUE is a generalized
4296 callback argument. On success, this returns 1. On failure,
4297 it returns 0, indicating a bad parse. It does not use heap
4298 memory to build an output string, so cannot encounter memory
4299 allocation failure. */
4300
4301CP_STATIC_IF_GLIBCPP_V3
4302int
4303cplus_demangle_print_callback (int options,
a46586c3 4304 struct demangle_component *dc,
456cc5cf
SB		 4305 demangle_callbackref callback, void *opaque)
4306{
4307 struct d_print_info dpi;
4308
0a15a50e 4309 d_print_init (&dpi, callback, opaque, dc);
456cc5cf 4310
0a15a50e
GB		 4311 {
4312#ifdef CP_DYNAMIC_ARRAYS
3f393853
BM		 4313 /* Avoid zero-length VLAs, which are prohibited by the C99 standard
4314 and flagged as errors by Address Sanitizer. */
4315 __extension__ struct d_saved_scope scopes[(dpi.num_saved_scopes > 0)
4316 ? dpi.num_saved_scopes : 1];
4317 __extension__ struct d_print_template temps[(dpi.num_copy_templates > 0)
4318 ? dpi.num_copy_templates : 1];
0a15a50e
GB		 4319
4320 dpi.saved_scopes = scopes;
4321 dpi.copy_templates = temps;
4322#else
4323 dpi.saved_scopes = alloca (dpi.num_saved_scopes
4324 * sizeof (*dpi.saved_scopes));
4325 dpi.copy_templates = alloca (dpi.num_copy_templates
4326 * sizeof (*dpi.copy_templates));
4327#endif
4328
4329 d_print_comp (&dpi, options, dc);
4330 }
456cc5cf
SB		 4331
4332 d_print_flush (&dpi);
4333
0a15a50e 4334 return ! d_print_saw_error (&dpi);
bd6946d1 4335}
3b60dd8e 4336
2d6c4025
ILT		 4337/* Turn components into a human readable string. OPTIONS is the
4338 options bits passed to the demangler. DC is the tree to print.
4339 ESTIMATE is a guess at the length of the result. This returns a
4340 string allocated by malloc, or NULL on error. On success, this
4341 sets *PALC to the size of the allocated buffer. On failure, this
4342 sets *PALC to 0 for a bad parse, or to 1 for a memory allocation
4343 failure. */
69afa80d 4344
5e777af5
ILT		 4345CP_STATIC_IF_GLIBCPP_V3
4346char *
a46586c3 4347cplus_demangle_print (int options, struct demangle_component *dc,
9486db4f 4348 int estimate, size_t *palc)
bd6946d1 4349{
456cc5cf 4350 struct d_growable_string dgs;
69afa80d 4351
456cc5cf 4352 d_growable_string_init (&dgs, estimate);
69afa80d 4353
456cc5cf
SB		 4354 if (! cplus_demangle_print_callback (options, dc,
4355 d_growable_string_callback_adapter,
4356 &dgs))
69afa80d 4357 {
456cc5cf
SB		 4358 free (dgs.buf);
4359 *palc = 0;
bd6946d1 4360 return NULL;
69afa80d 4361 }
69afa80d 4362
456cc5cf
SB		 4363 *palc = dgs.allocation_failure ? 1 : dgs.alc;
4364 return dgs.buf;
69afa80d
AS		 4365}
4366
38179091 4367/* Returns the I'th element of the template arglist ARGS, or NULL on
7864eaaf 4368 failure. If I is negative, return the entire arglist. */
38179091
JM		 4369
4370static struct demangle_component *
4371d_index_template_argument (struct demangle_component *args, int i)
4372{
4373 struct demangle_component *a;
4374
7864eaaf
JM		 4375 if (i < 0)
4376 /* Print the whole argument pack. */
4377 return args;
4378
38179091
JM		 4379 for (a = args;
4380 a != NULL;
4381 a = d_right (a))
4382 {
4383 if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4384 return NULL;
4385 if (i <= 0)
4386 break;
4387 --i;
4388 }
4389 if (i != 0 || a == NULL)
4390 return NULL;
4391
4392 return d_left (a);
4393}
4394
4395/* Returns the template argument from the current context indicated by DC,
4396 which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */
4397
4398static struct demangle_component *
4399d_lookup_template_argument (struct d_print_info *dpi,
4400 const struct demangle_component *dc)
4401{
4402 if (dpi->templates == NULL)
4403 {
4404 d_print_error (dpi);
4405 return NULL;
4406 }
4407
4408 return d_index_template_argument
4409 (d_right (dpi->templates->template_decl),
4410 dc->u.s_number.number);
4411}
4412
4413/* Returns a template argument pack used in DC (any will do), or NULL. */
4414
4415static struct demangle_component *
4416d_find_pack (struct d_print_info *dpi,
4417 const struct demangle_component *dc)
4418{
4419 struct demangle_component *a;
4420 if (dc == NULL)
4421 return NULL;
4422
4423 switch (dc->type)
4424 {
4425 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
4426 a = d_lookup_template_argument (dpi, dc);
4427 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4428 return a;
4429 return NULL;
4430
4431 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4432 return NULL;
4433
48255616 4434 case DEMANGLE_COMPONENT_LAMBDA:
38179091 4435 case DEMANGLE_COMPONENT_NAME:
7dbb85a7 4436 case DEMANGLE_COMPONENT_TAGGED_NAME:
38179091
JM		 4437 case DEMANGLE_COMPONENT_OPERATOR:
4438 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
4439 case DEMANGLE_COMPONENT_SUB_STD:
4440 case DEMANGLE_COMPONENT_CHARACTER:
6afcfe0a 4441 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
d931f693 4442 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
76d96a5a
MM		 4443 case DEMANGLE_COMPONENT_FIXED_TYPE:
4444 case DEMANGLE_COMPONENT_DEFAULT_ARG:
4445 case DEMANGLE_COMPONENT_NUMBER:
38179091
JM		 4446 return NULL;
4447
4448 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4449 return d_find_pack (dpi, dc->u.s_extended_operator.name);
4450 case DEMANGLE_COMPONENT_CTOR:
4451 return d_find_pack (dpi, dc->u.s_ctor.name);
4452 case DEMANGLE_COMPONENT_DTOR:
4453 return d_find_pack (dpi, dc->u.s_dtor.name);
4454
4455 default:
4456 a = d_find_pack (dpi, d_left (dc));
4457 if (a)
4458 return a;
4459 return d_find_pack (dpi, d_right (dc));
4460 }
4461}
4462
4463/* Returns the length of the template argument pack DC. */
4464
4465static int
4466d_pack_length (const struct demangle_component *dc)
4467{
4468 int count = 0;
4469 while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST
4470 && d_left (dc) != NULL)
4471 {
4472 ++count;
4473 dc = d_right (dc);
4474 }
4475 return count;
4476}
4477
34bbc4c5
JM		 4478/* Returns the number of template args in DC, expanding any pack expansions
4479 found there. */
4480
4481static int
4482d_args_length (struct d_print_info *dpi, const struct demangle_component *dc)
4483{
4484 int count = 0;
4485 for (; dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST;
4486 dc = d_right (dc))
4487 {
4488 struct demangle_component *elt = d_left (dc);
4489 if (elt == NULL)
4490 break;
4491 if (elt->type == DEMANGLE_COMPONENT_PACK_EXPANSION)
4492 {
4493 struct demangle_component *a = d_find_pack (dpi, d_left (elt));
4494 count += d_pack_length (a);
4495 }
4496 else
4497 ++count;
4498 }
4499 return count;
4500}
4501
38179091
JM		 4502/* DC is a component of a mangled expression. Print it, wrapped in parens
4503 if needed. */
4504
4505static void
743a99db 4506d_print_subexpr (struct d_print_info *dpi, int options,
a46586c3 4507 struct demangle_component *dc)
38179091
JM		 4508{
4509 int simple = 0;
6afcfe0a 4510 if (dc->type == DEMANGLE_COMPONENT_NAME
4b6aaa99
JM		 4511 || dc->type == DEMANGLE_COMPONENT_QUAL_NAME
4512 || dc->type == DEMANGLE_COMPONENT_INITIALIZER_LIST
6afcfe0a 4513 || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM)
38179091
JM		 4514 simple = 1;
4515 if (!simple)
4516 d_append_char (dpi, '(');
743a99db 4517 d_print_comp (dpi, options, dc);
38179091
JM		 4518 if (!simple)
4519 d_append_char (dpi, ')');
4520}
4521
0a15a50e 4522/* Save the current scope. */
c24d86bc 4523
0a15a50e
GB		 4524static void
4525d_save_scope (struct d_print_info *dpi,
4526 const struct demangle_component *container)
c24d86bc 4527{
0a15a50e
GB		 4528 struct d_saved_scope *scope;
4529 struct d_print_template *src, **link;
4530
4531 if (dpi->next_saved_scope >= dpi->num_saved_scopes)
4532 {
4533 d_print_error (dpi);
4534 return;
4535 }
4536 scope = &dpi->saved_scopes[dpi->next_saved_scope];
4537 dpi->next_saved_scope++;
4538
4539 scope->container = container;
4540 link = &scope->templates;
c24d86bc
GB		 4541
4542 for (src = dpi->templates; src != NULL; src = src->next)
4543 {
0a15a50e 4544 struct d_print_template *dst;
c24d86bc 4545
0a15a50e 4546 if (dpi->next_copy_template >= dpi->num_copy_templates)
c24d86bc
GB		 4547 {
4548 d_print_error (dpi);
0a15a50e 4549 return;
c24d86bc 4550 }
0a15a50e
GB		 4551 dst = &dpi->copy_templates[dpi->next_copy_template];
4552 dpi->next_copy_template++;
c24d86bc
GB		 4553
4554 dst->template_decl = src->template_decl;
4555 *link = dst;
4556 link = &dst->next;
4557 }
4558
4559 *link = NULL;
0a15a50e
GB		 4560}
4561
4562/* Attempt to locate a previously saved scope. Returns NULL if no
4563 corresponding saved scope was found. */
4564
4565static struct d_saved_scope *
4566d_get_saved_scope (struct d_print_info *dpi,
4567 const struct demangle_component *container)
4568{
4569 int i;
4570
4571 for (i = 0; i < dpi->next_saved_scope; i++)
4572 if (dpi->saved_scopes[i].container == container)
4573 return &dpi->saved_scopes[i];
c24d86bc 4574
0a15a50e 4575 return NULL;
c24d86bc
GB		 4576}
4577
7864eaaf
JM		 4578/* If DC is a C++17 fold-expression, print it and return true; otherwise
4579 return false. */
4580
4581static int
4582d_maybe_print_fold_expression (struct d_print_info *dpi, int options,
a46586c3 4583 struct demangle_component *dc)
7864eaaf 4584{
a46586c3 4585 struct demangle_component *ops, *operator_, *op1, *op2;
7864eaaf
JM		 4586 int save_idx;
4587
4588 const char *fold_code = d_left (dc)->u.s_operator.op->code;
4589 if (fold_code[0] != 'f')
4590 return 0;
4591
4592 ops = d_right (dc);
4593 operator_ = d_left (ops);
4594 op1 = d_right (ops);
4595 op2 = 0;
4596 if (op1->type == DEMANGLE_COMPONENT_TRINARY_ARG2)
4597 {
4598 op2 = d_right (op1);
4599 op1 = d_left (op1);
4600 }
4601
4602 /* Print the whole pack. */
4603 save_idx = dpi->pack_index;
4604 dpi->pack_index = -1;
4605
4606 switch (fold_code[1])
4607 {
4608 /* Unary left fold, (... + X). */
4609 case 'l':
4610 d_append_string (dpi, "(...");
4611 d_print_expr_op (dpi, options, operator_);
4612 d_print_subexpr (dpi, options, op1);
4613 d_append_char (dpi, ')');
4614 break;
4615
4616 /* Unary right fold, (X + ...). */
4617 case 'r':
4618 d_append_char (dpi, '(');
4619 d_print_subexpr (dpi, options, op1);
4620 d_print_expr_op (dpi, options, operator_);
4621 d_append_string (dpi, "...)");
4622 break;
4623
4624 /* Binary left fold, (42 + ... + X). */
4625 case 'L':
4626 /* Binary right fold, (X + ... + 42). */
4627 case 'R':
4628 d_append_char (dpi, '(');
4629 d_print_subexpr (dpi, options, op1);
4630 d_print_expr_op (dpi, options, operator_);
4631 d_append_string (dpi, "...");
4632 d_print_expr_op (dpi, options, operator_);
4633 d_print_subexpr (dpi, options, op2);
4634 d_append_char (dpi, ')');
4635 break;
4636 }
4637
4638 dpi->pack_index = save_idx;
4639 return 1;
4640}
4641
bd6946d1 4642/* Subroutine to handle components. */
69afa80d 4643
bd6946d1 4644static void
861c3495 4645d_print_comp_inner (struct d_print_info *dpi, int options,
a46586c3 4646 struct demangle_component *dc)
69afa80d 4647{
dd70e080
JM		 4648 /* Magic variable to let reference smashing skip over the next modifier
4649 without needing to modify *dc. */
a46586c3 4650 struct demangle_component *mod_inner = NULL;
dd70e080 4651
c24d86bc
GB		 4652 /* Variable used to store the current templates while a previously
4653 captured scope is used. */
4654 struct d_print_template *saved_templates;
4655
4656 /* Nonzero if templates have been stored in the above variable. */
4657 int need_template_restore = 0;
4658
bd6946d1 4659 if (dc == NULL)
69afa80d 4660 {
bd6946d1
ILT		 4661 d_print_error (dpi);
4662 return;
69afa80d 4663 }
bd6946d1
ILT		 4664 if (d_print_saw_error (dpi))
4665 return;
69afa80d 4666
bd6946d1 4667 switch (dc->type)
69afa80d 4668 {
5e777af5 4669 case DEMANGLE_COMPONENT_NAME:
743a99db 4670 if ((options & DMGL_JAVA) == 0)
2d6c4025
ILT		 4671 d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len);
4672 else
4673 d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len);
bd6946d1 4674 return;
69afa80d 4675
7dbb85a7
JM		 4676 case DEMANGLE_COMPONENT_TAGGED_NAME:
4677 d_print_comp (dpi, options, d_left (dc));
4678 d_append_string (dpi, "[abi:");
4679 d_print_comp (dpi, options, d_right (dc));
4680 d_append_char (dpi, ']');
4681 return;
4682
5e777af5
ILT		 4683 case DEMANGLE_COMPONENT_QUAL_NAME:
4684 case DEMANGLE_COMPONENT_LOCAL_NAME:
743a99db
JK		 4685 d_print_comp (dpi, options, d_left (dc));
4686 if ((options & DMGL_JAVA) == 0)
456cc5cf 4687 d_append_string (dpi, "::");
2d6c4025
ILT		 4688 else
4689 d_append_char (dpi, '.');
622aac0b
JM		 4690 {
4691 struct demangle_component *local_name = d_right (dc);
4692 if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4693 {
4694 d_append_string (dpi, "{default arg#");
4695 d_append_num (dpi, local_name->u.s_unary_num.num + 1);
4696 d_append_string (dpi, "}::");
4697 local_name = local_name->u.s_unary_num.sub;
4698 }
4699 d_print_comp (dpi, options, local_name);
4700 }
bd6946d1 4701 return;
69afa80d 4702
5e777af5 4703 case DEMANGLE_COMPONENT_TYPED_NAME:
bd6946d1 4704 {
a51753e4 4705 struct d_print_mod *hold_modifiers;
5e777af5 4706 struct demangle_component *typed_name;
a51753e4
ILT		 4707 struct d_print_mod adpm[4];
4708 unsigned int i;
bd6946d1
ILT		 4709 struct d_print_template dpt;
4710
4711 /* Pass the name down to the type so that it can be printed in
a51753e4
ILT		 4712 the right place for the type. We also have to pass down
4713 any CV-qualifiers, which apply to the this parameter. */
4714 hold_modifiers = dpi->modifiers;
448545cb 4715 dpi->modifiers = 0;
a51753e4 4716 i = 0;
bd6946d1 4717 typed_name = d_left (dc);
a51753e4
ILT		 4718 while (typed_name != NULL)
4719 {
4720 if (i >= sizeof adpm / sizeof adpm[0])
4721 {
4722 d_print_error (dpi);
4723 return;
4724 }
bd6946d1 4725
a51753e4
ILT		 4726 adpm[i].next = dpi->modifiers;
4727 dpi->modifiers = &adpm[i];
4728 adpm[i].mod = typed_name;
4729 adpm[i].printed = 0;
4730 adpm[i].templates = dpi->templates;
4731 ++i;
4732
51dc6603 4733 if (!is_fnqual_component_type (typed_name->type))
a51753e4
ILT		 4734 break;
4735
4736 typed_name = d_left (typed_name);
4737 }
bd6946d1 4738
ac847e32
MS		 4739 if (typed_name == NULL)
4740 {
4741 d_print_error (dpi);
4742 return;
4743 }
4744
5e777af5
ILT		 4745 /* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then
4746 there may be CV-qualifiers on its right argument which
7cd7dbda 4747 really apply here; this happens when parsing a class that
5e777af5
ILT		 4748 is local to a function. */
4749 if (typed_name->type == DEMANGLE_COMPONENT_LOCAL_NAME)
a91d1af0 4750 {
7cd7dbda
NS		 4751 typed_name = d_right (typed_name);
4752 if (typed_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4753 typed_name = typed_name->u.s_unary_num.sub;
4754 if (typed_name == NULL)
76d96a5a
MM		 4755 {
4756 d_print_error (dpi);
4757 return;
4758 }
7cd7dbda 4759 while (is_fnqual_component_type (typed_name->type))
a91d1af0
ILT		 4760 {
4761 if (i >= sizeof adpm / sizeof adpm[0])
4762 {
4763 d_print_error (dpi);
4764 return;
4765 }
4766
4767 adpm[i] = adpm[i - 1];
4768 adpm[i].next = &adpm[i - 1];
4769 dpi->modifiers = &adpm[i];
4770
7cd7dbda 4771 adpm[i - 1].mod = typed_name;
a91d1af0
ILT		 4772 adpm[i - 1].printed = 0;
4773 adpm[i - 1].templates = dpi->templates;
4774 ++i;
4775
7cd7dbda 4776 typed_name = d_left (typed_name);
a91d1af0
ILT		 4777 }
4778 }
4779
7cd7dbda
NS		 4780 /* If typed_name is a template, then it applies to the
4781 function type as well. */
4782 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
4783 {
4784 dpt.next = dpi->templates;
4785 dpi->templates = &dpt;
4786 dpt.template_decl = typed_name;
4787 }
4788
743a99db 4789 d_print_comp (dpi, options, d_right (dc));
1056d228 4790
5e777af5 4791 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
bd6946d1 4792 dpi->templates = dpt.next;
69afa80d 4793
a51753e4 4794 /* If the modifiers didn't get printed by the type, print them
bd6946d1 4795 now. */
a51753e4 4796 while (i > 0)
bd6946d1 4797 {
a51753e4
ILT		 4798 --i;
4799 if (! adpm[i].printed)
4800 {
4801 d_append_char (dpi, ' ');
743a99db 4802 d_print_mod (dpi, options, adpm[i].mod);
a51753e4 4803 }
bd6946d1 4804 }
69afa80d 4805
a51753e4 4806 dpi->modifiers = hold_modifiers;
69afa80d 4807
bd6946d1
ILT		 4808 return;
4809 }
69afa80d 4810
5e777af5 4811 case DEMANGLE_COMPONENT_TEMPLATE:
81dc098b
ILT		 4812 {
4813 struct d_print_mod *hold_dpm;
456cc5cf 4814 struct demangle_component *dcl;
85d09f61
CC		 4815 const struct demangle_component *hold_current;
4816
4817 /* This template may need to be referenced by a cast operator
4818 contained in its subtree. */
4819 hold_current = dpi->current_template;
4820 dpi->current_template = dc;
81dc098b
ILT		 4821
4822 /* Don't push modifiers into a template definition. Doing so
4823 could give the wrong definition for a template argument.
4824 Instead, treat the template essentially as a name. */
4825
4826 hold_dpm = dpi->modifiers;
4827 dpi->modifiers = NULL;
4828
456cc5cf
SB		 4829 dcl = d_left (dc);
4830
743a99db 4831 if ((options & DMGL_JAVA) != 0
456cc5cf
SB		 4832 && dcl->type == DEMANGLE_COMPONENT_NAME
4833 && dcl->u.s_name.len == 6
4834 && strncmp (dcl->u.s_name.s, "JArray", 6) == 0)
4835 {
4836 /* Special-case Java arrays, so that JArray<TYPE> appears
4837 instead as TYPE[]. */
4838
743a99db 4839 d_print_comp (dpi, options, d_right (dc));
456cc5cf
SB		 4840 d_append_string (dpi, "[]");
4841 }
4842 else
4843 {
743a99db 4844 d_print_comp (dpi, options, dcl);
456cc5cf
SB		 4845 if (d_last_char (dpi) == '<')
4846 d_append_char (dpi, ' ');
4847 d_append_char (dpi, '<');
743a99db 4848 d_print_comp (dpi, options, d_right (dc));
456cc5cf
SB		 4849 /* Avoid generating two consecutive '>' characters, to avoid
4850 the C++ syntactic ambiguity. */
4851 if (d_last_char (dpi) == '>')
4852 d_append_char (dpi, ' ');
4853 d_append_char (dpi, '>');
4854 }
81dc098b
ILT		 4855
4856 dpi->modifiers = hold_dpm;
85d09f61 4857 dpi->current_template = hold_current;
81dc098b
ILT		 4858
4859 return;
4860 }
bd6946d1 4861
5e777af5 4862 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
8e09a726
NS		 4863 if (dpi->is_lambda_arg)
4864 {
4865 /* Show the template parm index, as that's how g++ displays
4866 these, and future proofs us against potential
4867 '[]<typename T> (T *a, T *b) {...}'. */
4868 d_append_buffer (dpi, "auto:", 5);
4869 d_append_num (dpi, dc->u.s_number.number + 1);
4870 }
4871 else
4872 {
4873 struct d_print_template *hold_dpt;
4874 struct demangle_component *a = d_lookup_template_argument (dpi, dc);
38179091 4875
8e09a726
NS		 4876 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4877 a = d_index_template_argument (a, dpi->pack_index);
0870bfd6 4878
8e09a726
NS		 4879 if (a == NULL)
4880 {
4881 d_print_error (dpi);
4882 return;
4883 }
0870bfd6 4884
8e09a726
NS		 4885 /* While processing this parameter, we need to pop the list
4886 of templates. This is because the template parameter may
4887 itself be a reference to a parameter of an outer
4888 template. */
69afa80d 4889
8e09a726
NS		 4890 hold_dpt = dpi->templates;
4891 dpi->templates = hold_dpt->next;
051664b0 4892
8e09a726 4893 d_print_comp (dpi, options, a);
0870bfd6 4894
8e09a726
NS		 4895 dpi->templates = hold_dpt;
4896 }
4897 return;
69afa80d 4898
4be5c72c
JM		 4899 case DEMANGLE_COMPONENT_TPARM_OBJ:
4900 d_append_string (dpi, "template parameter object for ");
4901 d_print_comp (dpi, options, d_left (dc));
4902 return;
4903
5e777af5 4904 case DEMANGLE_COMPONENT_CTOR:
743a99db 4905 d_print_comp (dpi, options, dc->u.s_ctor.name);
bd6946d1
ILT		 4906 return;
4907
5e777af5 4908 case DEMANGLE_COMPONENT_DTOR:
bd6946d1 4909 d_append_char (dpi, '~');
743a99db 4910 d_print_comp (dpi, options, dc->u.s_dtor.name);
bd6946d1
ILT		 4911 return;
4912
5e777af5 4913 case DEMANGLE_COMPONENT_VTABLE:
456cc5cf 4914 d_append_string (dpi, "vtable for ");
743a99db 4915 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4916 return;
4917
5e777af5 4918 case DEMANGLE_COMPONENT_VTT:
456cc5cf 4919 d_append_string (dpi, "VTT for ");
743a99db 4920 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4921 return;
4922
5e777af5 4923 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
456cc5cf 4924 d_append_string (dpi, "construction vtable for ");
743a99db 4925 d_print_comp (dpi, options, d_left (dc));
456cc5cf 4926 d_append_string (dpi, "-in-");
743a99db 4927 d_print_comp (dpi, options, d_right (dc));
bd6946d1
ILT		 4928 return;
4929
5e777af5 4930 case DEMANGLE_COMPONENT_TYPEINFO:
456cc5cf 4931 d_append_string (dpi, "typeinfo for ");
743a99db 4932 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4933 return;
4934
5e777af5 4935 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
456cc5cf 4936 d_append_string (dpi, "typeinfo name for ");
743a99db 4937 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4938 return;
4939
5e777af5 4940 case DEMANGLE_COMPONENT_TYPEINFO_FN:
456cc5cf 4941 d_append_string (dpi, "typeinfo fn for ");
743a99db 4942 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4943 return;
4944
5e777af5 4945 case DEMANGLE_COMPONENT_THUNK:
456cc5cf 4946 d_append_string (dpi, "non-virtual thunk to ");
743a99db 4947 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4948 return;
4949
5e777af5 4950 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
456cc5cf 4951 d_append_string (dpi, "virtual thunk to ");
743a99db 4952 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4953 return;
4954
5e777af5 4955 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
456cc5cf 4956 d_append_string (dpi, "covariant return thunk to ");
743a99db 4957 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4958 return;
4959
5e777af5 4960 case DEMANGLE_COMPONENT_JAVA_CLASS:
456cc5cf 4961 d_append_string (dpi, "java Class for ");
743a99db 4962 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4963 return;
4964
5e777af5 4965 case DEMANGLE_COMPONENT_GUARD:
456cc5cf 4966 d_append_string (dpi, "guard variable for ");
743a99db 4967 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4968 return;
4969
7c424acd
JM		 4970 case DEMANGLE_COMPONENT_TLS_INIT:
4971 d_append_string (dpi, "TLS init function for ");
4972 d_print_comp (dpi, options, d_left (dc));
4973 return;
4974
4975 case DEMANGLE_COMPONENT_TLS_WRAPPER:
4976 d_append_string (dpi, "TLS wrapper function for ");
4977 d_print_comp (dpi, options, d_left (dc));
4978 return;
4979
5e777af5 4980 case DEMANGLE_COMPONENT_REFTEMP:
b25dd954
JM		 4981 d_append_string (dpi, "reference temporary #");
4982 d_print_comp (dpi, options, d_right (dc));
4983 d_append_string (dpi, " for ");
743a99db 4984 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 4985 return;
4986
15da2806 4987 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
456cc5cf 4988 d_append_string (dpi, "hidden alias for ");
743a99db 4989 d_print_comp (dpi, options, d_left (dc));
15da2806
RH		 4990 return;
4991
0a35513e
AH		 4992 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
4993 d_append_string (dpi, "transaction clone for ");
4994 d_print_comp (dpi, options, d_left (dc));
4995 return;
4996
4997 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
4998 d_append_string (dpi, "non-transaction clone for ");
4999 d_print_comp (dpi, options, d_left (dc));
5000 return;
5001
5e777af5 5002 case DEMANGLE_COMPONENT_SUB_STD:
2d6c4025 5003 d_append_buffer (dpi, dc->u.s_string.string, dc->u.s_string.len);
bd6946d1
ILT		 5004 return;
5005
5e777af5
ILT		 5006 case DEMANGLE_COMPONENT_RESTRICT:
5007 case DEMANGLE_COMPONENT_VOLATILE:
5008 case DEMANGLE_COMPONENT_CONST:
80a19ac8
ILT		 5009 {
5010 struct d_print_mod *pdpm;
5011
5012 /* When printing arrays, it's possible to have cases where the
5013 same CV-qualifier gets pushed on the stack multiple times.
5014 We only need to print it once. */
5015
5016 for (pdpm = dpi->modifiers; pdpm != NULL; pdpm = pdpm->next)
5017 {
5018 if (! pdpm->printed)
5019 {
5020 if (pdpm->mod->type != DEMANGLE_COMPONENT_RESTRICT
5021 && pdpm->mod->type != DEMANGLE_COMPONENT_VOLATILE
5022 && pdpm->mod->type != DEMANGLE_COMPONENT_CONST)
5023 break;
5024 if (pdpm->mod->type == dc->type)
5025 {
743a99db 5026 d_print_comp (dpi, options, d_left (dc));
80a19ac8
ILT		 5027 return;
5028 }
5029 }
5030 }
5031 }
dd70e080
JM		 5032 goto modifier;
5033
5034 case DEMANGLE_COMPONENT_REFERENCE:
5035 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5036 {
5037 /* Handle reference smashing: & + && = &. */
a46586c3 5038 struct demangle_component *sub = d_left (dc);
8e09a726
NS		 5039 if (!dpi->is_lambda_arg
5040 && sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
dd70e080 5041 {
0a15a50e 5042 struct d_saved_scope *scope = d_get_saved_scope (dpi, sub);
c24d86bc 5043 struct demangle_component *a;
c24d86bc
GB		 5044
5045 if (scope == NULL)
5046 {
5047 /* This is the first time SUB has been traversed.
5048 We need to capture the current templates so
5049 they can be restored if SUB is reentered as a
5050 substitution. */
0a15a50e 5051 d_save_scope (dpi, sub);
c24d86bc
GB		 5052 if (d_print_saw_error (dpi))
5053 return;
5054 }
5055 else
5056 {
861c3495
GB		 5057 const struct d_component_stack *dcse;
5058 int found_self_or_parent = 0;
5059
c24d86bc 5060 /* This traversal is reentering SUB as a substition.
861c3495
GB		 5061 If we are not beneath SUB or DC in the tree then we
5062 need to restore SUB's template stack temporarily. */
5063 for (dcse = dpi->component_stack; dcse != NULL;
5064 dcse = dcse->parent)
5065 {
5066 if (dcse->dc == sub
5067 || (dcse->dc == dc
5068 && dcse != dpi->component_stack))
5069 {
5070 found_self_or_parent = 1;
5071 break;
5072 }
5073 }
5074
5075 if (!found_self_or_parent)
5076 {
5077 saved_templates = dpi->templates;
5078 dpi->templates = scope->templates;
5079 need_template_restore = 1;
5080 }
c24d86bc
GB		 5081 }
5082
5083 a = d_lookup_template_argument (dpi, sub);
dd70e080
JM		 5084 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
5085 a = d_index_template_argument (a, dpi->pack_index);
f2e6f32e
ILT		 5086
5087 if (a == NULL)
5088 {
c24d86bc
GB		 5089 if (need_template_restore)
5090 dpi->templates = saved_templates;
5091
f2e6f32e
ILT		 5092 d_print_error (dpi);
5093 return;
5094 }
5095
dd70e080
JM		 5096 sub = a;
5097 }
5098
5099 if (sub->type == DEMANGLE_COMPONENT_REFERENCE
5100 || sub->type == dc->type)
5101 dc = sub;
5102 else if (sub->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE)
5103 mod_inner = d_left (sub);
5104 }
80a19ac8 5105 /* Fall through. */
dd70e080 5106
5e777af5
ILT		 5107 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
5108 case DEMANGLE_COMPONENT_POINTER:
5e777af5
ILT		 5109 case DEMANGLE_COMPONENT_COMPLEX:
5110 case DEMANGLE_COMPONENT_IMAGINARY:
51dc6603 5111 FNQUAL_COMPONENT_CASE:
dd70e080 5112 modifier:
bd6946d1
ILT		 5113 {
5114 /* We keep a list of modifiers on the stack. */
5115 struct d_print_mod dpm;
69afa80d 5116
bd6946d1
ILT		 5117 dpm.next = dpi->modifiers;
5118 dpi->modifiers = &dpm;
5119 dpm.mod = dc;
5120 dpm.printed = 0;
81dc098b 5121 dpm.templates = dpi->templates;
69afa80d 5122
dd70e080
JM		 5123 if (!mod_inner)
5124 mod_inner = d_left (dc);
5125
5126 d_print_comp (dpi, options, mod_inner);
0870bfd6 5127
bd6946d1
ILT		 5128 /* If the modifier didn't get printed by the type, print it
5129 now. */
5130 if (! dpm.printed)
743a99db 5131 d_print_mod (dpi, options, dc);
69afa80d 5132
bd6946d1 5133 dpi->modifiers = dpm.next;
69afa80d 5134
c24d86bc
GB		 5135 if (need_template_restore)
5136 dpi->templates = saved_templates;
5137
bd6946d1
ILT		 5138 return;
5139 }
69afa80d 5140
5e777af5 5141 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
743a99db 5142 if ((options & DMGL_JAVA) == 0)
2d6c4025
ILT		 5143 d_append_buffer (dpi, dc->u.s_builtin.type->name,
5144 dc->u.s_builtin.type->len);
bd6946d1 5145 else
2d6c4025
ILT		 5146 d_append_buffer (dpi, dc->u.s_builtin.type->java_name,
5147 dc->u.s_builtin.type->java_len);
bd6946d1 5148 return;
69afa80d 5149
5e777af5 5150 case DEMANGLE_COMPONENT_VENDOR_TYPE:
743a99db 5151 d_print_comp (dpi, options, d_left (dc));
bd6946d1 5152 return;
69afa80d 5153
5e777af5 5154 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
bd6946d1 5155 {
743a99db 5156 if ((options & DMGL_RET_POSTFIX) != 0)
f019462c
JK		 5157 d_print_function_type (dpi,
5158 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5159 dc, dpi->modifiers);
92aed1cb
TL		 5160
5161 /* Print return type if present */
5fe8e1e9
JK		 5162 if (d_left (dc) != NULL && (options & DMGL_RET_POSTFIX) != 0)
5163 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5164 d_left (dc));
5165 else if (d_left (dc) != NULL && (options & DMGL_RET_DROP) == 0)
bd6946d1
ILT		 5166 {
5167 struct d_print_mod dpm;
69afa80d 5168
bd6946d1
ILT		 5169 /* We must pass this type down as a modifier in order to
5170 print it in the right location. */
bd6946d1
ILT		 5171 dpm.next = dpi->modifiers;
5172 dpi->modifiers = &dpm;
5173 dpm.mod = dc;
5174 dpm.printed = 0;
81dc098b 5175 dpm.templates = dpi->templates;
69afa80d 5176
f019462c
JK		 5177 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5178 d_left (dc));
69afa80d 5179
bd6946d1 5180 dpi->modifiers = dpm.next;
69afa80d 5181
bd6946d1
ILT		 5182 if (dpm.printed)
5183 return;
69afa80d 5184
92aed1cb
TL		 5185 /* In standard prefix notation, there is a space between the
5186 return type and the function signature. */
743a99db 5187 if ((options & DMGL_RET_POSTFIX) == 0)
92aed1cb 5188 d_append_char (dpi, ' ');
bd6946d1 5189 }
69afa80d 5190
743a99db 5191 if ((options & DMGL_RET_POSTFIX) == 0)
f019462c
JK		 5192 d_print_function_type (dpi,
5193 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5194 dc, dpi->modifiers);
051664b0 5195
bd6946d1
ILT		 5196 return;
5197 }
69afa80d 5198
5e777af5 5199 case DEMANGLE_COMPONENT_ARRAY_TYPE:
bd6946d1 5200 {
80a19ac8
ILT		 5201 struct d_print_mod *hold_modifiers;
5202 struct d_print_mod adpm[4];
5203 unsigned int i;
5204 struct d_print_mod *pdpm;
69afa80d 5205
bd6946d1 5206 /* We must pass this type down as a modifier in order to print
80a19ac8
ILT		 5207 multi-dimensional arrays correctly. If the array itself is
5208 CV-qualified, we act as though the element type were
5209 CV-qualified. We do this by copying the modifiers down
5210 rather than fiddling pointers, so that we don't wind up
5211 with a d_print_mod higher on the stack pointing into our
5212 stack frame after we return. */
051664b0 5213
80a19ac8
ILT		 5214 hold_modifiers = dpi->modifiers;
5215
5216 adpm[0].next = hold_modifiers;
5217 dpi->modifiers = &adpm[0];
5218 adpm[0].mod = dc;
5219 adpm[0].printed = 0;
5220 adpm[0].templates = dpi->templates;
5221
5222 i = 1;
5223 pdpm = hold_modifiers;
5224 while (pdpm != NULL
5225 && (pdpm->mod->type == DEMANGLE_COMPONENT_RESTRICT
5226 || pdpm->mod->type == DEMANGLE_COMPONENT_VOLATILE
5227 || pdpm->mod->type == DEMANGLE_COMPONENT_CONST))
5228 {
5229 if (! pdpm->printed)
5230 {
5231 if (i >= sizeof adpm / sizeof adpm[0])
5232 {
5233 d_print_error (dpi);
5234 return;
5235 }
5236
5237 adpm[i] = *pdpm;
5238 adpm[i].next = dpi->modifiers;
5239 dpi->modifiers = &adpm[i];
5240 pdpm->printed = 1;
5241 ++i;
5242 }
5243
5244 pdpm = pdpm->next;
5245 }
69afa80d 5246
743a99db 5247 d_print_comp (dpi, options, d_right (dc));
69afa80d 5248
80a19ac8 5249 dpi->modifiers = hold_modifiers;
69afa80d 5250
80a19ac8 5251 if (adpm[0].printed)
bd6946d1 5252 return;
69afa80d 5253
80a19ac8
ILT		 5254 while (i > 1)
5255 {
5256 --i;
743a99db 5257 d_print_mod (dpi, options, adpm[i].mod);
80a19ac8
ILT		 5258 }
5259
743a99db 5260 d_print_array_type (dpi, options, dc, dpi->modifiers);
69afa80d 5261
bd6946d1
ILT		 5262 return;
5263 }
69afa80d 5264
5e777af5 5265 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
abfe01ce 5266 case DEMANGLE_COMPONENT_VECTOR_TYPE:
bd6946d1 5267 {
bd6946d1
ILT		 5268 struct d_print_mod dpm;
5269
bd6946d1
ILT		 5270 dpm.next = dpi->modifiers;
5271 dpi->modifiers = &dpm;
5272 dpm.mod = dc;
5273 dpm.printed = 0;
81dc098b 5274 dpm.templates = dpi->templates;
bd6946d1 5275
743a99db 5276 d_print_comp (dpi, options, d_right (dc));
bd6946d1
ILT		 5277
5278 /* If the modifier didn't get printed by the type, print it
5279 now. */
5280 if (! dpm.printed)
743a99db 5281 d_print_mod (dpi, options, dc);
69afa80d 5282
bd6946d1 5283 dpi->modifiers = dpm.next;
69afa80d 5284
bd6946d1
ILT		 5285 return;
5286 }
69afa80d 5287
07523e7c
JM		 5288 case DEMANGLE_COMPONENT_FIXED_TYPE:
5289 if (dc->u.s_fixed.sat)
5290 d_append_string (dpi, "_Sat ");
5291 /* Don't print "int _Accum". */
5292 if (dc->u.s_fixed.length->u.s_builtin.type
5293 != &cplus_demangle_builtin_types['i'-'a'])
5294 {
743a99db 5295 d_print_comp (dpi, options, dc->u.s_fixed.length);
07523e7c
JM		 5296 d_append_char (dpi, ' ');
5297 }
5298 if (dc->u.s_fixed.accum)
5299 d_append_string (dpi, "_Accum");
5300 else
5301 d_append_string (dpi, "_Fract");
5302 return;
5303
5e777af5
ILT		 5304 case DEMANGLE_COMPONENT_ARGLIST:
5305 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
38179091 5306 if (d_left (dc) != NULL)
743a99db 5307 d_print_comp (dpi, options, d_left (dc));
bd6946d1
ILT		 5308 if (d_right (dc) != NULL)
5309 {
a77f94e2 5310 size_t len;
9c4d7e52
JJ		 5311 unsigned long int flush_count;
5312 /* Make sure ", " isn't flushed by d_append_string, otherwise
5313 dpi->len -= 2 wouldn't work. */
5314 if (dpi->len >= sizeof (dpi->buf) - 2)
5315 d_print_flush (dpi);
456cc5cf 5316 d_append_string (dpi, ", ");
a77f94e2 5317 len = dpi->len;
9c4d7e52 5318 flush_count = dpi->flush_count;
743a99db 5319 d_print_comp (dpi, options, d_right (dc));
a77f94e2
JM		 5320 /* If that didn't print anything (which can happen with empty
5321 template argument packs), remove the comma and space. */
9c4d7e52 5322 if (dpi->flush_count == flush_count && dpi->len == len)
a77f94e2 5323 dpi->len -= 2;
bd6946d1
ILT		 5324 }
5325 return;
69afa80d 5326
4b6aaa99
JM		 5327 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
5328 {
5329 struct demangle_component *type = d_left (dc);
5330 struct demangle_component *list = d_right (dc);
5331
5332 if (type)
5333 d_print_comp (dpi, options, type);
5334 d_append_char (dpi, '{');
5335 d_print_comp (dpi, options, list);
5336 d_append_char (dpi, '}');
5337 }
5338 return;
5339
5e777af5 5340 case DEMANGLE_COMPONENT_OPERATOR:
bd6946d1 5341 {
3abbe458
JM		 5342 const struct demangle_operator_info *op = dc->u.s_operator.op;
5343 int len = op->len;
bd6946d1 5344
456cc5cf 5345 d_append_string (dpi, "operator");
3abbe458
JM		 5346 /* Add a space before new/delete. */
5347 if (IS_LOWER (op->name[0]))
bd6946d1 5348 d_append_char (dpi, ' ');
3abbe458
JM		 5349 /* Omit a trailing space. */
5350 if (op->name[len-1] == ' ')
5351 --len;
5352 d_append_buffer (dpi, op->name, len);
bd6946d1
ILT		 5353 return;
5354 }
69afa80d 5355
5e777af5 5356 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
456cc5cf 5357 d_append_string (dpi, "operator ");
743a99db 5358 d_print_comp (dpi, options, dc->u.s_extended_operator.name);
bd6946d1 5359 return;
69afa80d 5360
921da198 5361 case DEMANGLE_COMPONENT_CONVERSION:
456cc5cf 5362 d_append_string (dpi, "operator ");
921da198 5363 d_print_conversion (dpi, options, dc);
bd6946d1 5364 return;
69afa80d 5365
4b6aaa99
JM		 5366 case DEMANGLE_COMPONENT_NULLARY:
5367 d_print_expr_op (dpi, options, d_left (dc));
5368 return;
5369
5e777af5 5370 case DEMANGLE_COMPONENT_UNARY:
4b6aaa99
JM		 5371 {
5372 struct demangle_component *op = d_left (dc);
5373 struct demangle_component *operand = d_right (dc);
5374 const char *code = NULL;
cb0ad104 5375
4b6aaa99
JM		 5376 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
5377 {
5378 code = op->u.s_operator.op->code;
5379 if (!strcmp (code, "ad"))
5380 {
5381 /* Don't print the argument list for the address of a
5382 function. */
5383 if (operand->type == DEMANGLE_COMPONENT_TYPED_NAME
5384 && d_left (operand)->type == DEMANGLE_COMPONENT_QUAL_NAME
5385 && d_right (operand)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
5386 operand = d_left (operand);
5387 }
5388 if (operand->type == DEMANGLE_COMPONENT_BINARY_ARGS)
5389 {
5390 /* This indicates a suffix operator. */
5391 operand = d_left (operand);
5392 d_print_subexpr (dpi, options, operand);
5393 d_print_expr_op (dpi, options, op);
5394 return;
5395 }
5396 }
cb0ad104 5397
34bbc4c5
JM		 5398 /* For sizeof..., just print the pack length. */
5399 if (code && !strcmp (code, "sZ"))
5400 {
5401 struct demangle_component *a = d_find_pack (dpi, operand);
5402 int len = d_pack_length (a);
5403 d_append_num (dpi, len);
5404 return;
5405 }
5406 else if (code && !strcmp (code, "sP"))
5407 {
5408 int len = d_args_length (dpi, operand);
5409 d_append_num (dpi, len);
5410 return;
5411 }
5412
4b6aaa99
JM		 5413 if (op->type != DEMANGLE_COMPONENT_CAST)
5414 d_print_expr_op (dpi, options, op);
5415 else
5416 {
5417 d_append_char (dpi, '(');
5418 d_print_cast (dpi, options, op);
5419 d_append_char (dpi, ')');
5420 }
5421 if (code && !strcmp (code, "gs"))
5422 /* Avoid parens after '::'. */
5423 d_print_comp (dpi, options, operand);
5424 else if (code && !strcmp (code, "st"))
5425 /* Always print parens for sizeof (type). */
5426 {
5427 d_append_char (dpi, '(');
5428 d_print_comp (dpi, options, operand);
5429 d_append_char (dpi, ')');
5430 }
5431 else
5432 d_print_subexpr (dpi, options, operand);
5433 }
bd6946d1
ILT		 5434 return;
5435
5e777af5
ILT		 5436 case DEMANGLE_COMPONENT_BINARY:
5437 if (d_right (dc)->type != DEMANGLE_COMPONENT_BINARY_ARGS)
69afa80d 5438 {
bd6946d1
ILT		 5439 d_print_error (dpi);
5440 return;
69afa80d 5441 }
a51753e4 5442
aefa74bd
JM		 5443 if (op_is_new_cast (d_left (dc)))
5444 {
5445 d_print_expr_op (dpi, options, d_left (dc));
5446 d_append_char (dpi, '<');
5447 d_print_comp (dpi, options, d_left (d_right (dc)));
5448 d_append_string (dpi, ">(");
5449 d_print_comp (dpi, options, d_right (d_right (dc)));
5450 d_append_char (dpi, ')');
5451 return;
5452 }
5453
7864eaaf
JM		 5454 if (d_maybe_print_fold_expression (dpi, options, dc))
5455 return;
5456
a51753e4
ILT		 5457 /* We wrap an expression which uses the greater-than operator in
5458 an extra layer of parens so that it does not get confused
5459 with the '>' which ends the template parameters. */
5e777af5 5460 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
2d6c4025
ILT		 5461 && d_left (dc)->u.s_operator.op->len == 1
5462 && d_left (dc)->u.s_operator.op->name[0] == '>')
a51753e4
ILT		 5463 d_append_char (dpi, '(');
5464
cb0ad104
JK		 5465 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") == 0
5466 && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_TYPED_NAME)
5467 {
5468 /* Function call used in an expression should not have printed types
5469 of the function arguments. Values of the function arguments still
5470 get printed below. */
5471
5472 const struct demangle_component *func = d_left (d_right (dc));
5473
5474 if (d_right (func)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE)
5475 d_print_error (dpi);
5476 d_print_subexpr (dpi, options, d_left (func));
5477 }
5478 else
5479 d_print_subexpr (dpi, options, d_left (d_right (dc)));
4d43dcde
JM		 5480 if (strcmp (d_left (dc)->u.s_operator.op->code, "ix") == 0)
5481 {
5482 d_append_char (dpi, '[');
743a99db 5483 d_print_comp (dpi, options, d_right (d_right (dc)));
4d43dcde
JM		 5484 d_append_char (dpi, ']');
5485 }
5486 else
5487 {
5488 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") != 0)
743a99db
JK		 5489 d_print_expr_op (dpi, options, d_left (dc));
5490 d_print_subexpr (dpi, options, d_right (d_right (dc)));
4d43dcde 5491 }
a51753e4 5492
5e777af5 5493 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
2d6c4025
ILT		 5494 && d_left (dc)->u.s_operator.op->len == 1
5495 && d_left (dc)->u.s_operator.op->name[0] == '>')
a51753e4
ILT		 5496 d_append_char (dpi, ')');
5497
bd6946d1
ILT		 5498 return;
5499
5e777af5
ILT		 5500 case DEMANGLE_COMPONENT_BINARY_ARGS:
5501 /* We should only see this as part of DEMANGLE_COMPONENT_BINARY. */
bd6946d1
ILT		 5502 d_print_error (dpi);
5503 return;
5504
5e777af5
ILT		 5505 case DEMANGLE_COMPONENT_TRINARY:
5506 if (d_right (dc)->type != DEMANGLE_COMPONENT_TRINARY_ARG1
5507 || d_right (d_right (dc))->type != DEMANGLE_COMPONENT_TRINARY_ARG2)
bd6946d1
ILT		 5508 {
5509 d_print_error (dpi);
5510 return;
5511 }
7864eaaf
JM		 5512 if (d_maybe_print_fold_expression (dpi, options, dc))
5513 return;
4b6aaa99
JM		 5514 {
5515 struct demangle_component *op = d_left (dc);
5516 struct demangle_component *first = d_left (d_right (dc));
5517 struct demangle_component *second = d_left (d_right (d_right (dc)));
5518 struct demangle_component *third = d_right (d_right (d_right (dc)));
5519
5520 if (!strcmp (op->u.s_operator.op->code, "qu"))
5521 {
5522 d_print_subexpr (dpi, options, first);
5523 d_print_expr_op (dpi, options, op);
5524 d_print_subexpr (dpi, options, second);
5525 d_append_string (dpi, " : ");
5526 d_print_subexpr (dpi, options, third);
5527 }
5528 else
5529 {
5530 d_append_string (dpi, "new ");
5531 if (d_left (first) != NULL)
5532 {
5533 d_print_subexpr (dpi, options, first);
5534 d_append_char (dpi, ' ');
5535 }
5536 d_print_comp (dpi, options, second);
5537 if (third)
5538 d_print_subexpr (dpi, options, third);
5539 }
5540 }
bd6946d1
ILT		 5541 return;
5542
5e777af5
ILT		 5543 case DEMANGLE_COMPONENT_TRINARY_ARG1:
5544 case DEMANGLE_COMPONENT_TRINARY_ARG2:
5545 /* We should only see these are part of DEMANGLE_COMPONENT_TRINARY. */
bd6946d1
ILT		 5546 d_print_error (dpi);
5547 return;
5548
5e777af5
ILT		 5549 case DEMANGLE_COMPONENT_LITERAL:
5550 case DEMANGLE_COMPONENT_LITERAL_NEG:
31058ee3
ILT		 5551 {
5552 enum d_builtin_type_print tp;
bd6946d1 5553
31058ee3
ILT		 5554 /* For some builtin types, produce simpler output. */
5555 tp = D_PRINT_DEFAULT;
5556 if (d_left (dc)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE)
5557 {
5558 tp = d_left (dc)->u.s_builtin.type->print;
5559 switch (tp)
5560 {
5561 case D_PRINT_INT:
5562 case D_PRINT_UNSIGNED:
5563 case D_PRINT_LONG:
5564 case D_PRINT_UNSIGNED_LONG:
5565 case D_PRINT_LONG_LONG:
5566 case D_PRINT_UNSIGNED_LONG_LONG:
5567 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME)
5568 {
5569 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
5570 d_append_char (dpi, '-');
743a99db 5571 d_print_comp (dpi, options, d_right (dc));
31058ee3
ILT		 5572 switch (tp)
5573 {
5574 default:
5575 break;
5576 case D_PRINT_UNSIGNED:
5577 d_append_char (dpi, 'u');
5578 break;
5579 case D_PRINT_LONG:
5580 d_append_char (dpi, 'l');
5581 break;
5582 case D_PRINT_UNSIGNED_LONG:
456cc5cf 5583 d_append_string (dpi, "ul");
31058ee3
ILT		 5584 break;
5585 case D_PRINT_LONG_LONG:
456cc5cf 5586 d_append_string (dpi, "ll");
31058ee3
ILT		 5587 break;
5588 case D_PRINT_UNSIGNED_LONG_LONG:
456cc5cf 5589 d_append_string (dpi, "ull");
31058ee3
ILT		 5590 break;
5591 }
5592 return;
5593 }
5594 break;
69afa80d 5595
31058ee3
ILT		 5596 case D_PRINT_BOOL:
5597 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME
5598 && d_right (dc)->u.s_name.len == 1
5599 && dc->type == DEMANGLE_COMPONENT_LITERAL)
5600 {
5601 switch (d_right (dc)->u.s_name.s[0])
5602 {
5603 case '0':
456cc5cf 5604 d_append_string (dpi, "false");
31058ee3
ILT		 5605 return;
5606 case '1':
456cc5cf 5607 d_append_string (dpi, "true");
31058ee3
ILT		 5608 return;
5609 default:
5610 break;
5611 }
5612 }
5613 break;
051664b0 5614
31058ee3
ILT		 5615 default:
5616 break;
5617 }
5618 }
69afa80d 5619
31058ee3 5620 d_append_char (dpi, '(');
743a99db 5621 d_print_comp (dpi, options, d_left (dc));
31058ee3
ILT		 5622 d_append_char (dpi, ')');
5623 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
5624 d_append_char (dpi, '-');
5625 if (tp == D_PRINT_FLOAT)
5626 d_append_char (dpi, '[');
743a99db 5627 d_print_comp (dpi, options, d_right (dc));
31058ee3
ILT		 5628 if (tp == D_PRINT_FLOAT)
5629 d_append_char (dpi, ']');
5630 }
bd6946d1 5631 return;
69afa80d 5632
abfe01ce
JM		 5633 case DEMANGLE_COMPONENT_NUMBER:
5634 d_append_num (dpi, dc->u.s_number.number);
5635 return;
5636
e5df4fb1
DD		 5637 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
5638 d_append_string (dpi, "java resource ");
743a99db 5639 d_print_comp (dpi, options, d_left (dc));
e5df4fb1
DD		 5640 return;
5641
5642 case DEMANGLE_COMPONENT_COMPOUND_NAME:
743a99db
JK		 5643 d_print_comp (dpi, options, d_left (dc));
5644 d_print_comp (dpi, options, d_right (dc));
e5df4fb1
DD		 5645 return;
5646
5647 case DEMANGLE_COMPONENT_CHARACTER:
5648 d_append_char (dpi, dc->u.s_character.character);
5649 return;
5650
5a3d7e74
JM		 5651 case DEMANGLE_COMPONENT_DECLTYPE:
5652 d_append_string (dpi, "decltype (");
743a99db 5653 d_print_comp (dpi, options, d_left (dc));
5a3d7e74
JM		 5654 d_append_char (dpi, ')');
5655 return;
5656
38179091
JM		 5657 case DEMANGLE_COMPONENT_PACK_EXPANSION:
5658 {
6afcfe0a 5659 int len;
38179091 5660 int i;
6afcfe0a
JM		 5661 struct demangle_component *a = d_find_pack (dpi, d_left (dc));
5662 if (a == NULL)
5663 {
5664 /* d_find_pack won't find anything if the only packs involved
5665 in this expansion are function parameter packs; in that
5666 case, just print the pattern and "...". */
743a99db 5667 d_print_subexpr (dpi, options, d_left (dc));
6afcfe0a
JM		 5668 d_append_string (dpi, "...");
5669 return;
5670 }
38179091 5671
6afcfe0a 5672 len = d_pack_length (a);
38179091
JM		 5673 dc = d_left (dc);
5674 for (i = 0; i < len; ++i)
5675 {
5676 dpi->pack_index = i;
743a99db 5677 d_print_comp (dpi, options, dc);
38179091
JM		 5678 if (i < len-1)
5679 d_append_string (dpi, ", ");
5680 }
5681 }
5682 return;
5683
448545cb 5684 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
a517066d
JM		 5685 {
5686 long num = dc->u.s_number.number;
5687 if (num == 0)
5688 d_append_string (dpi, "this");
5689 else
5690 {
5691 d_append_string (dpi, "{parm#");
5692 d_append_num (dpi, num);
5693 d_append_char (dpi, '}');
5694 }
5695 }
d5f4eddd 5696 return;
448545cb 5697
23b1a789
JK		 5698 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
5699 d_append_string (dpi, "global constructors keyed to ");
743a99db 5700 d_print_comp (dpi, options, dc->u.s_binary.left);
23b1a789
JK		 5701 return;
5702
5703 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
5704 d_append_string (dpi, "global destructors keyed to ");
743a99db 5705 d_print_comp (dpi, options, dc->u.s_binary.left);
23b1a789
JK		 5706 return;
5707
d5f4eddd
JM		 5708 case DEMANGLE_COMPONENT_LAMBDA:
5709 d_append_string (dpi, "{lambda(");
8e09a726
NS		 5710 /* Generic lambda auto parms are mangled as the template type
5711 parm they are. */
5712 dpi->is_lambda_arg++;
743a99db 5713 d_print_comp (dpi, options, dc->u.s_unary_num.sub);
8e09a726 5714 dpi->is_lambda_arg--;
d5f4eddd
JM		 5715 d_append_string (dpi, ")#");
5716 d_append_num (dpi, dc->u.s_unary_num.num + 1);
5717 d_append_char (dpi, '}');
5718 return;
5719
5720 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
5721 d_append_string (dpi, "{unnamed type#");
5722 d_append_num (dpi, dc->u.s_number.number + 1);
5723 d_append_char (dpi, '}');
5724 return;
5725
2d2b02c4
CC		 5726 case DEMANGLE_COMPONENT_CLONE:
5727 d_print_comp (dpi, options, d_left (dc));
5728 d_append_string (dpi, " [clone ");
5729 d_print_comp (dpi, options, d_right (dc));
5730 d_append_char (dpi, ']');
5731 return;
5732
bd6946d1
ILT		 5733 default:
5734 d_print_error (dpi);
5735 return;
5736 }
69afa80d
AS		 5737}
5738
861c3495
GB		 5739static void
5740d_print_comp (struct d_print_info *dpi, int options,
a46586c3 5741 struct demangle_component *dc)
861c3495
GB		 5742{
5743 struct d_component_stack self;
6b086d35 5744 if (dc == NULL || dc->d_printing > 1 || dpi->recursion > MAX_RECURSION_COUNT)
a46586c3
MW		 5745 {
5746 d_print_error (dpi);
5747 return;
5748 }
6b086d35
MW		 5749
5750 dc->d_printing++;
5751 dpi->recursion++;
861c3495
GB		 5752
5753 self.dc = dc;
5754 self.parent = dpi->component_stack;
5755 dpi->component_stack = &self;
5756
5757 d_print_comp_inner (dpi, options, dc);
5758
5759 dpi->component_stack = self.parent;
a46586c3 5760 dc->d_printing--;
6b086d35 5761 dpi->recursion--;
861c3495
GB		 5762}
5763
2d6c4025
ILT		 5764/* Print a Java dentifier. For Java we try to handle encoded extended
5765 Unicode characters. The C++ ABI doesn't mention Unicode encoding,
5766 so we don't it for C++. Characters are encoded as
5767 __U<hex-char>+_. */
69afa80d 5768
bd6946d1 5769static void
9486db4f 5770d_print_java_identifier (struct d_print_info *dpi, const char *name, int len)
69afa80d 5771{
2d6c4025
ILT		 5772 const char *p;
5773 const char *end;
69afa80d 5774
2d6c4025
ILT		 5775 end = name + len;
5776 for (p = name; p < end; ++p)
5777 {
5778 if (end - p > 3
5779 && p[0] == '_'
5780 && p[1] == '_'
5781 && p[2] == 'U')
69afa80d 5782 {
2d6c4025
ILT		 5783 unsigned long c;
5784 const char *q;
5785
5786 c = 0;
5787 for (q = p + 3; q < end; ++q)
bd6946d1 5788 {
2d6c4025
ILT		 5789 int dig;
5790
5791 if (IS_DIGIT (*q))
5792 dig = *q - '0';
5793 else if (*q >= 'A' && *q <= 'F')
5794 dig = *q - 'A' + 10;
5795 else if (*q >= 'a' && *q <= 'f')
5796 dig = *q - 'a' + 10;
5797 else
5798 break;
69afa80d 5799
2d6c4025
ILT		 5800 c = c * 16 + dig;
5801 }
5802 /* If the Unicode character is larger than 256, we don't try
5803 to deal with it here. FIXME. */
5804 if (q < end && *q == '_' && c < 256)
5805 {
5806 d_append_char (dpi, c);
5807 p = q;
5808 continue;
bd6946d1 5809 }
bd6946d1 5810 }
2d6c4025
ILT		 5811
5812 d_append_char (dpi, *p);
69afa80d 5813 }
69afa80d
AS		 5814}
5815
a51753e4
ILT		 5816/* Print a list of modifiers. SUFFIX is 1 if we are printing
5817 qualifiers on this after printing a function. */
69afa80d 5818
bd6946d1 5819static void
743a99db 5820d_print_mod_list (struct d_print_info *dpi, int options,
9486db4f 5821 struct d_print_mod *mods, int suffix)
69afa80d 5822{
81dc098b
ILT		 5823 struct d_print_template *hold_dpt;
5824
a51753e4 5825 if (mods == NULL || d_print_saw_error (dpi))
bd6946d1 5826 return;
69afa80d 5827
a51753e4
ILT		 5828 if (mods->printed
5829 || (! suffix
51dc6603 5830 && (is_fnqual_component_type (mods->mod->type))))
a51753e4 5831 {
743a99db 5832 d_print_mod_list (dpi, options, mods->next, suffix);
a51753e4
ILT		 5833 return;
5834 }
5835
81dc098b
ILT		 5836 mods->printed = 1;
5837
5838 hold_dpt = dpi->templates;
5839 dpi->templates = mods->templates;
5840
5e777af5 5841 if (mods->mod->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
69afa80d 5842 {
743a99db 5843 d_print_function_type (dpi, options, mods->mod, mods->next);
81dc098b 5844 dpi->templates = hold_dpt;
bd6946d1
ILT		 5845 return;
5846 }
5e777af5 5847 else if (mods->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
bd6946d1 5848 {
743a99db 5849 d_print_array_type (dpi, options, mods->mod, mods->next);
81dc098b 5850 dpi->templates = hold_dpt;
bd6946d1
ILT		 5851 return;
5852 }
5e777af5 5853 else if (mods->mod->type == DEMANGLE_COMPONENT_LOCAL_NAME)
a91d1af0
ILT		 5854 {
5855 struct d_print_mod *hold_modifiers;
5e777af5 5856 struct demangle_component *dc;
a91d1af0
ILT		 5857
5858 /* When this is on the modifier stack, we have pulled any
5859 qualifiers off the right argument already. Otherwise, we
5860 print it as usual, but don't let the left argument see any
5861 modifiers. */
5862
5863 hold_modifiers = dpi->modifiers;
5864 dpi->modifiers = NULL;
743a99db 5865 d_print_comp (dpi, options, d_left (mods->mod));
a91d1af0
ILT		 5866 dpi->modifiers = hold_modifiers;
5867
743a99db 5868 if ((options & DMGL_JAVA) == 0)
456cc5cf 5869 d_append_string (dpi, "::");
2d6c4025
ILT		 5870 else
5871 d_append_char (dpi, '.');
a91d1af0
ILT		 5872
5873 dc = d_right (mods->mod);
d5f4eddd
JM		 5874
5875 if (dc->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
5876 {
5877 d_append_string (dpi, "{default arg#");
5878 d_append_num (dpi, dc->u.s_unary_num.num + 1);
5879 d_append_string (dpi, "}::");
5880 dc = dc->u.s_unary_num.sub;
5881 }
5882
51dc6603 5883 while (is_fnqual_component_type (dc->type))
a91d1af0
ILT		 5884 dc = d_left (dc);
5885
743a99db 5886 d_print_comp (dpi, options, dc);
a91d1af0
ILT		 5887
5888 dpi->templates = hold_dpt;
5889 return;
5890 }
69afa80d 5891
743a99db 5892 d_print_mod (dpi, options, mods->mod);
69afa80d 5893
81dc098b
ILT		 5894 dpi->templates = hold_dpt;
5895
743a99db 5896 d_print_mod_list (dpi, options, mods->next, suffix);
69afa80d 5897}
81dc098b 5898
bd6946d1 5899/* Print a modifier. */
69afa80d 5900
bd6946d1 5901static void
743a99db 5902d_print_mod (struct d_print_info *dpi, int options,
a46586c3 5903 struct demangle_component *mod)
bd6946d1
ILT		 5904{
5905 switch (mod->type)
5906 {
5e777af5
ILT		 5907 case DEMANGLE_COMPONENT_RESTRICT:
5908 case DEMANGLE_COMPONENT_RESTRICT_THIS:
456cc5cf 5909 d_append_string (dpi, " restrict");
bd6946d1 5910 return;
5e777af5
ILT		 5911 case DEMANGLE_COMPONENT_VOLATILE:
5912 case DEMANGLE_COMPONENT_VOLATILE_THIS:
456cc5cf 5913 d_append_string (dpi, " volatile");
bd6946d1 5914 return;
5e777af5
ILT		 5915 case DEMANGLE_COMPONENT_CONST:
5916 case DEMANGLE_COMPONENT_CONST_THIS:
456cc5cf 5917 d_append_string (dpi, " const");
bd6946d1 5918 return;
b8fd7909
JM		 5919 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
5920 d_append_string (dpi, " transaction_safe");
5921 return;
51dc6603
JM		 5922 case DEMANGLE_COMPONENT_NOEXCEPT:
5923 d_append_string (dpi, " noexcept");
5924 if (d_right (mod))
5925 {
5926 d_append_char (dpi, '(');
5927 d_print_comp (dpi, options, d_right (mod));
5928 d_append_char (dpi, ')');
5929 }
5930 return;
5931 case DEMANGLE_COMPONENT_THROW_SPEC:
5932 d_append_string (dpi, " throw");
5933 if (d_right (mod))
5934 {
5935 d_append_char (dpi, '(');
5936 d_print_comp (dpi, options, d_right (mod));
5937 d_append_char (dpi, ')');
5938 }
5939 return;
5e777af5 5940 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
bd6946d1 5941 d_append_char (dpi, ' ');
743a99db 5942 d_print_comp (dpi, options, d_right (mod));
bd6946d1 5943 return;
5e777af5 5944 case DEMANGLE_COMPONENT_POINTER:
bd6946d1 5945 /* There is no pointer symbol in Java. */
743a99db 5946 if ((options & DMGL_JAVA) == 0)
bd6946d1
ILT		 5947 d_append_char (dpi, '*');
5948 return;
9eb85f27
JM		 5949 case DEMANGLE_COMPONENT_REFERENCE_THIS:
5950 /* For the ref-qualifier, put a space before the &. */
5951 d_append_char (dpi, ' ');
191816a3 5952 /* FALLTHRU */
5e777af5 5953 case DEMANGLE_COMPONENT_REFERENCE:
bd6946d1
ILT		 5954 d_append_char (dpi, '&');
5955 return;
9eb85f27
JM		 5956 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
5957 d_append_char (dpi, ' ');
191816a3 5958 /* FALLTHRU */
1ab28be5
DG		 5959 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5960 d_append_string (dpi, "&&");
5961 return;
5e777af5 5962 case DEMANGLE_COMPONENT_COMPLEX:
456cc5cf 5963 d_append_string (dpi, "complex ");
bd6946d1 5964 return;
5e777af5 5965 case DEMANGLE_COMPONENT_IMAGINARY:
456cc5cf 5966 d_append_string (dpi, "imaginary ");
bd6946d1 5967 return;
5e777af5 5968 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
a51753e4 5969 if (d_last_char (dpi) != '(')
bd6946d1 5970 d_append_char (dpi, ' ');
743a99db 5971 d_print_comp (dpi, options, d_left (mod));
456cc5cf 5972 d_append_string (dpi, "::*");
bd6946d1 5973 return;
5e777af5 5974 case DEMANGLE_COMPONENT_TYPED_NAME:
743a99db 5975 d_print_comp (dpi, options, d_left (mod));
bd6946d1 5976 return;
abfe01ce 5977 case DEMANGLE_COMPONENT_VECTOR_TYPE:
ce30e6fd 5978 d_append_string (dpi, " __vector(");
743a99db 5979 d_print_comp (dpi, options, d_left (mod));
ce30e6fd 5980 d_append_char (dpi, ')');
abfe01ce
JM		 5981 return;
5982
bd6946d1
ILT		 5983 default:
5984 /* Otherwise, we have something that won't go back on the
5985 modifier stack, so we can just print it. */
743a99db 5986 d_print_comp (dpi, options, mod);
bd6946d1
ILT		 5987 return;
5988 }
5989}
69afa80d 5990
bd6946d1 5991/* Print a function type, except for the return type. */
69afa80d 5992
bd6946d1 5993static void
743a99db 5994d_print_function_type (struct d_print_info *dpi, int options,
a46586c3 5995 struct demangle_component *dc,
9486db4f 5996 struct d_print_mod *mods)
69afa80d 5997{
81dc098b 5998 int need_paren;
31058ee3 5999 int need_space;
81dc098b 6000 struct d_print_mod *p;
a91d1af0 6001 struct d_print_mod *hold_modifiers;
81dc098b
ILT		 6002
6003 need_paren = 0;
31058ee3 6004 need_space = 0;
81dc098b 6005 for (p = mods; p != NULL; p = p->next)
bd6946d1 6006 {
81dc098b
ILT		 6007 if (p->printed)
6008 break;
69afa80d 6009
81dc098b 6010 switch (p->mod->type)
bd6946d1 6011 {
31058ee3
ILT		 6012 case DEMANGLE_COMPONENT_POINTER:
6013 case DEMANGLE_COMPONENT_REFERENCE:
1ab28be5 6014 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
31058ee3
ILT		 6015 need_paren = 1;
6016 break;
5e777af5
ILT		 6017 case DEMANGLE_COMPONENT_RESTRICT:
6018 case DEMANGLE_COMPONENT_VOLATILE:
6019 case DEMANGLE_COMPONENT_CONST:
6020 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
5e777af5
ILT		 6021 case DEMANGLE_COMPONENT_COMPLEX:
6022 case DEMANGLE_COMPONENT_IMAGINARY:
6023 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
31058ee3 6024 need_space = 1;
81dc098b
ILT		 6025 need_paren = 1;
6026 break;
51dc6603 6027 FNQUAL_COMPONENT_CASE:
a51753e4 6028 break;
81dc098b
ILT		 6029 default:
6030 break;
bd6946d1 6031 }
81dc098b
ILT		 6032 if (need_paren)
6033 break;
6034 }
69afa80d 6035
81dc098b 6036 if (need_paren)
a51753e4 6037 {
31058ee3 6038 if (! need_space)
a51753e4 6039 {
31058ee3
ILT		 6040 if (d_last_char (dpi) != '('
6041 && d_last_char (dpi) != '*')
6042 need_space = 1;
a51753e4 6043 }
31058ee3
ILT		 6044 if (need_space && d_last_char (dpi) != ' ')
6045 d_append_char (dpi, ' ');
a51753e4
ILT		 6046 d_append_char (dpi, '(');
6047 }
69afa80d 6048
a91d1af0
ILT		 6049 hold_modifiers = dpi->modifiers;
6050 dpi->modifiers = NULL;
6051
743a99db 6052 d_print_mod_list (dpi, options, mods, 0);
69afa80d 6053
81dc098b
ILT		 6054 if (need_paren)
6055 d_append_char (dpi, ')');
69afa80d 6056
bd6946d1 6057 d_append_char (dpi, '(');
69afa80d 6058
bd6946d1 6059 if (d_right (dc) != NULL)
743a99db 6060 d_print_comp (dpi, options, d_right (dc));
69afa80d 6061
bd6946d1 6062 d_append_char (dpi, ')');
a51753e4 6063
743a99db 6064 d_print_mod_list (dpi, options, mods, 1);
a91d1af0
ILT		 6065
6066 dpi->modifiers = hold_modifiers;
bd6946d1 6067}
69afa80d 6068
bd6946d1 6069/* Print an array type, except for the element type. */
69afa80d 6070
bd6946d1 6071static void
743a99db 6072d_print_array_type (struct d_print_info *dpi, int options,
a46586c3 6073 struct demangle_component *dc,
9486db4f 6074 struct d_print_mod *mods)
bd6946d1
ILT		 6075{
6076 int need_space;
69afa80d 6077
bd6946d1
ILT		 6078 need_space = 1;
6079 if (mods != NULL)
69afa80d 6080 {
bd6946d1
ILT		 6081 int need_paren;
6082 struct d_print_mod *p;
051664b0 6083
bd6946d1
ILT		 6084 need_paren = 0;
6085 for (p = mods; p != NULL; p = p->next)
69afa80d 6086 {
80a19ac8 6087 if (! p->printed)
69afa80d 6088 {
80a19ac8
ILT		 6089 if (p->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
6090 {
6091 need_space = 0;
6092 break;
6093 }
6094 else
6095 {
6096 need_paren = 1;
6097 need_space = 1;
6098 break;
6099 }
69afa80d 6100 }
bd6946d1 6101 }
69afa80d 6102
bd6946d1 6103 if (need_paren)
456cc5cf 6104 d_append_string (dpi, " (");
69afa80d 6105
743a99db 6106 d_print_mod_list (dpi, options, mods, 0);
69afa80d 6107
bd6946d1
ILT		 6108 if (need_paren)
6109 d_append_char (dpi, ')');
6110 }
69afa80d 6111
bd6946d1
ILT		 6112 if (need_space)
6113 d_append_char (dpi, ' ');
051664b0 6114
bd6946d1 6115 d_append_char (dpi, '[');
051664b0 6116
bd6946d1 6117 if (d_left (dc) != NULL)
743a99db 6118 d_print_comp (dpi, options, d_left (dc));
69afa80d 6119
bd6946d1
ILT		 6120 d_append_char (dpi, ']');
6121}
69afa80d 6122
bd6946d1 6123/* Print an operator in an expression. */
69afa80d 6124
bd6946d1 6125static void
743a99db 6126d_print_expr_op (struct d_print_info *dpi, int options,
a46586c3 6127 struct demangle_component *dc)
bd6946d1 6128{
5e777af5 6129 if (dc->type == DEMANGLE_COMPONENT_OPERATOR)
2d6c4025
ILT		 6130 d_append_buffer (dpi, dc->u.s_operator.op->name,
6131 dc->u.s_operator.op->len);
bd6946d1 6132 else
743a99db 6133 d_print_comp (dpi, options, dc);
69afa80d
AS		 6134}
6135
bd6946d1 6136/* Print a cast. */
69afa80d 6137
bd6946d1 6138static void
743a99db 6139d_print_cast (struct d_print_info *dpi, int options,
a46586c3 6140 struct demangle_component *dc)
921da198
PA		 6141{
6142 d_print_comp (dpi, options, d_left (dc));
6143}
6144
6145/* Print a conversion operator. */
6146
6147static void
6148d_print_conversion (struct d_print_info *dpi, int options,
a46586c3 6149 struct demangle_component *dc)
69afa80d 6150{
85d09f61 6151 struct d_print_template dpt;
81dc098b 6152
921da198 6153 /* For a conversion operator, we need the template parameters from
85d09f61
CC		 6154 the enclosing template in scope for processing the type. */
6155 if (dpi->current_template != NULL)
6156 {
bd6946d1
ILT		 6157 dpt.next = dpi->templates;
6158 dpi->templates = &dpt;
85d09f61
CC		 6159 dpt.template_decl = dpi->current_template;
6160 }
820555e6 6161
85d09f61
CC		 6162 if (d_left (dc)->type != DEMANGLE_COMPONENT_TEMPLATE)
6163 {
6164 d_print_comp (dpi, options, d_left (dc));
6165 if (dpi->current_template != NULL)
6166 dpi->templates = dpt.next;
6167 }
6168 else
6169 {
743a99db 6170 d_print_comp (dpi, options, d_left (d_left (dc)));
820555e6 6171
85d09f61
CC		 6172 /* For a templated cast operator, we need to remove the template
6173 parameters from scope after printing the operator name,
6174 so we need to handle the template printing here. */
6175 if (dpi->current_template != NULL)
6176 dpi->templates = dpt.next;
69afa80d 6177
a51753e4
ILT		 6178 if (d_last_char (dpi) == '<')
6179 d_append_char (dpi, ' ');
bd6946d1 6180 d_append_char (dpi, '<');
743a99db 6181 d_print_comp (dpi, options, d_right (d_left (dc)));
bd6946d1
ILT		 6182 /* Avoid generating two consecutive '>' characters, to avoid
6183 the C++ syntactic ambiguity. */
a51753e4 6184 if (d_last_char (dpi) == '>')
bd6946d1
ILT		 6185 d_append_char (dpi, ' ');
6186 d_append_char (dpi, '>');
69afa80d 6187 }
bd6946d1
ILT		 6188}
6189
6190/* Initialize the information structure we use to pass around
6191 information. */
6192
5e777af5
ILT		 6193CP_STATIC_IF_GLIBCPP_V3
6194void
9486db4f
GDR		 6195cplus_demangle_init_info (const char *mangled, int options, size_t len,
6196 struct d_info *di)
69afa80d 6197{
bd6946d1 6198 di->s = mangled;
2d6c4025 6199 di->send = mangled + len;
bd6946d1 6200 di->options = options;
69afa80d 6201
bd6946d1
ILT		 6202 di->n = mangled;
6203
6204 /* We can not need more components than twice the number of chars in
6205 the mangled string. Most components correspond directly to
6206 chars, but the ARGLIST types are exceptions. */
6207 di->num_comps = 2 * len;
bd6946d1
ILT		 6208 di->next_comp = 0;
6209
6210 /* Similarly, we can not need more substitutions than there are
81dc098b
ILT		 6211 chars in the mangled string. */
6212 di->num_subs = len;
bd6946d1
ILT		 6213 di->next_sub = 0;
6214
6215 di->last_name = NULL;
6216
2d6c4025 6217 di->expansion = 0;
85d09f61
CC		 6218 di->is_expression = 0;
6219 di->is_conversion = 0;
e96d1d8c 6220 di->recursion_level = 0;
69afa80d
AS		 6221}
6222
456cc5cf
SB		 6223/* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI
6224 mangled name, return strings in repeated callback giving the demangled
6225 name. OPTIONS is the usual libiberty demangler options. On success,
6226 this returns 1. On failure, returns 0. */
69afa80d 6227
456cc5cf
SB		 6228static int
6229d_demangle_callback (const char *mangled, int options,
6230 demangle_callbackref callback, void *opaque)
69afa80d 6231{
23b1a789
JK		 6232 enum
6233 {
6234 DCT_TYPE,
6235 DCT_MANGLED,
6236 DCT_GLOBAL_CTORS,
6237 DCT_GLOBAL_DTORS
6238 }
6239 type;
bd6946d1 6240 struct d_info di;
5e777af5 6241 struct demangle_component *dc;
456cc5cf 6242 int status;
bd6946d1
ILT		 6243
6244 if (mangled[0] == '_' && mangled[1] == 'Z')
23b1a789 6245 type = DCT_MANGLED;
bd6946d1
ILT		 6246 else if (strncmp (mangled, "_GLOBAL_", 8) == 0
6247 && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$')
6248 && (mangled[9] == 'D' || mangled[9] == 'I')
6249 && mangled[10] == '_')
23b1a789 6250 type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS;
69afa80d
AS		 6251 else
6252 {
bd6946d1 6253 if ((options & DMGL_TYPES) == 0)
456cc5cf 6254 return 0;
23b1a789 6255 type = DCT_TYPE;
69afa80d
AS		 6256 }
6257
456cc5cf 6258 cplus_demangle_init_info (mangled, options, strlen (mangled), &di);
051664b0 6259
e96d1d8c
NC		 6260 /* PR 87675 - Check for a mangled string that is so long
6261 that we do not have enough stack space to demangle it. */
6262 if (((options & DMGL_NO_RECURSE_LIMIT) == 0)
6263 /* This check is a bit arbitrary, since what we really want to do is to
6264 compare the sizes of the di.comps and di.subs arrays against the
6265 amount of stack space remaining. But there is no portable way to do
6266 this, so instead we use the recursion limit as a guide to the maximum
6267 size of the arrays. */
6268 && (unsigned long) di.num_comps > DEMANGLE_RECURSION_LIMIT)
6269 {
6270 /* FIXME: We need a way to indicate that a stack limit has been reached. */
6271 return 0;
6272 }
6273
2d6c4025
ILT		 6274 {
6275#ifdef CP_DYNAMIC_ARRAYS
5e777af5
ILT		 6276 __extension__ struct demangle_component comps[di.num_comps];
6277 __extension__ struct demangle_component *subs[di.num_subs];
2d6c4025 6278
456cc5cf
SB		 6279 di.comps = comps;
6280 di.subs = subs;
2d6c4025 6281#else
456cc5cf
SB		 6282 di.comps = alloca (di.num_comps * sizeof (*di.comps));
6283 di.subs = alloca (di.num_subs * sizeof (*di.subs));
2d6c4025
ILT		 6284#endif
6285
23b1a789
JK		 6286 switch (type)
6287 {
6288 case DCT_TYPE:
6289 dc = cplus_demangle_type (&di);
6290 break;
6291 case DCT_MANGLED:
6292 dc = cplus_demangle_mangled_name (&di, 1);
6293 break;
6294 case DCT_GLOBAL_CTORS:
6295 case DCT_GLOBAL_DTORS:
6296 d_advance (&di, 11);
6297 dc = d_make_comp (&di,
6298 (type == DCT_GLOBAL_CTORS
6299 ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS
6300 : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS),
431f321f 6301 d_make_demangle_mangled_name (&di, d_str (&di)),
23b1a789
JK		 6302 NULL);
6303 d_advance (&di, strlen (d_str (&di)));
6304 break;
e191f502
TS		 6305 default:
6306 abort (); /* We have listed all the cases. */
23b1a789 6307 }
bd6946d1 6308
2d6c4025
ILT		 6309 /* If DMGL_PARAMS is set, then if we didn't consume the entire
6310 mangled string, then we didn't successfully demangle it. If
6311 DMGL_PARAMS is not set, we didn't look at the trailing
6312 parameters. */
6313 if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0')
6314 dc = NULL;
f26deb3d 6315
bd6946d1 6316#ifdef CP_DEMANGLE_DEBUG
456cc5cf 6317 d_dump (dc, 0);
bd6946d1
ILT		 6318#endif
6319
456cc5cf
SB		 6320 status = (dc != NULL)
6321 ? cplus_demangle_print_callback (options, dc, callback, opaque)
6322 : 0;
6323 }
051664b0 6324
456cc5cf
SB		 6325 return status;
6326}
051664b0 6327
456cc5cf
SB		 6328/* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled
6329 name, return a buffer allocated with malloc holding the demangled
6330 name. OPTIONS is the usual libiberty demangler options. On
6331 success, this sets *PALC to the allocated size of the returned
6332 buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for
6333 a memory allocation failure, and returns NULL. */
2d6c4025 6334
456cc5cf
SB		 6335static char *
6336d_demangle (const char *mangled, int options, size_t *palc)
6337{
6338 struct d_growable_string dgs;
6339 int status;
051664b0 6340
456cc5cf
SB		 6341 d_growable_string_init (&dgs, 0);
6342
6343 status = d_demangle_callback (mangled, options,
6344 d_growable_string_callback_adapter, &dgs);
6345 if (status == 0)
6346 {
6347 free (dgs.buf);
6348 *palc = 0;
6349 return NULL;
6350 }
6351
9b2adcdb 6352 *palc = dgs.allocation_failure ? 1 : dgs.alc;
456cc5cf 6353 return dgs.buf;
69afa80d
AS		 6354}
6355
bd7e6f2d 6356#if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
bd6946d1 6357
9486db4f 6358extern char *__cxa_demangle (const char *, char *, size_t *, int *);
051664b0 6359
bd6946d1
ILT		 6360/* ia64 ABI-mandated entry point in the C++ runtime library for
6361 performing demangling. MANGLED_NAME is a NUL-terminated character
6362 string containing the name to be demangled.
051664b0
AS		 6363
6364 OUTPUT_BUFFER is a region of memory, allocated with malloc, of
6365 *LENGTH bytes, into which the demangled name is stored. If
6366 OUTPUT_BUFFER is not long enough, it is expanded using realloc.
6367 OUTPUT_BUFFER may instead be NULL; in that case, the demangled name
bd6946d1 6368 is placed in a region of memory allocated with malloc.
051664b0 6369
456cc5cf 6370 If LENGTH is non-NULL, the length of the buffer containing the
bd6946d1 6371 demangled name, is placed in *LENGTH.
051664b0
AS		 6372
6373 The return value is a pointer to the start of the NUL-terminated
6374 demangled name, or NULL if the demangling fails. The caller is
bd6946d1 6375 responsible for deallocating this memory using free.
051664b0
AS		 6376
6377 *STATUS is set to one of the following values:
6378 0: The demangling operation succeeded.
bd6946d1 6379 -1: A memory allocation failure occurred.
051664b0
AS		 6380 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
6381 -3: One of the arguments is invalid.
6382
bd6946d1 6383 The demangling is performed using the C++ ABI mangling rules, with
051664b0
AS		 6384 GNU extensions. */
6385
6386char *
9486db4f
GDR		 6387__cxa_demangle (const char *mangled_name, char *output_buffer,
6388 size_t *length, int *status)
051664b0 6389{
bd6946d1
ILT		 6390 char *demangled;
6391 size_t alc;
051664b0 6392
bd6946d1
ILT		 6393 if (mangled_name == NULL)
6394 {
4a368ffd
ILT		 6395 if (status != NULL)
6396 *status = -3;
051664b0
AS		 6397 return NULL;
6398 }
051664b0 6399
bd6946d1 6400 if (output_buffer != NULL && length == NULL)
051664b0 6401 {
4a368ffd
ILT		 6402 if (status != NULL)
6403 *status = -3;
6404 return NULL;
6405 }
6406
dbd6ec2b 6407 demangled = d_demangle (mangled_name, DMGL_PARAMS | DMGL_TYPES, &alc);
bd6946d1
ILT		 6408
6409 if (demangled == NULL)
051664b0 6410 {
4a368ffd
ILT		 6411 if (status != NULL)
6412 {
6413 if (alc == 1)
6414 *status = -1;
6415 else
6416 *status = -2;
6417 }
051664b0
AS		 6418 return NULL;
6419 }
bd6946d1
ILT		 6420
6421 if (output_buffer == NULL)
6422 {
6423 if (length != NULL)
6424 *length = alc;
6425 }
051664b0 6426 else
051664b0 6427 {
bd6946d1
ILT		 6428 if (strlen (demangled) < *length)
6429 {
6430 strcpy (output_buffer, demangled);
6431 free (demangled);
6432 demangled = output_buffer;
6433 }
6434 else
6435 {
6436 free (output_buffer);
6437 *length = alc;
6438 }
051664b0 6439 }
bd6946d1 6440
4a368ffd
ILT		 6441 if (status != NULL)
6442 *status = 0;
bd6946d1
ILT		 6443
6444 return demangled;
051664b0
AS		 6445}
6446
456cc5cf
SB		 6447extern int __gcclibcxx_demangle_callback (const char *,
6448 void (*)
6449 (const char *, size_t, void *),
6450 void *);
6451
6452/* Alternative, allocationless entry point in the C++ runtime library
6453 for performing demangling. MANGLED_NAME is a NUL-terminated character
6454 string containing the name to be demangled.
6455
6456 CALLBACK is a callback function, called with demangled string
6457 segments as demangling progresses; it is called at least once,
6458 but may be called more than once. OPAQUE is a generalized pointer
6459 used as a callback argument.
6460
6461 The return code is one of the following values, equivalent to
6462 the STATUS values of __cxa_demangle() (excluding -1, since this
6463 function performs no memory allocations):
6464 0: The demangling operation succeeded.
6465 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
6466 -3: One of the arguments is invalid.
6467
6468 The demangling is performed using the C++ ABI mangling rules, with
6469 GNU extensions. */
6470
6471int
6472__gcclibcxx_demangle_callback (const char *mangled_name,
6473 void (*callback) (const char *, size_t, void *),
6474 void *opaque)
6475{
6476 int status;
6477
6478 if (mangled_name == NULL || callback == NULL)
6479 return -3;
6480
6481 status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES,
6482 callback, opaque);
6483 if (status == 0)
6484 return -2;
6485
6486 return 0;
6487}
6488
bd7e6f2d 6489#else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */
051664b0 6490
bd6946d1
ILT		 6491/* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI
6492 mangled name, return a buffer allocated with malloc holding the
6493 demangled name. Otherwise, return NULL. */
69afa80d
AS		 6494
6495char *
456cc5cf 6496cplus_demangle_v3 (const char *mangled, int options)
69afa80d 6497{
bd6946d1 6498 size_t alc;
b5d1497d 6499
bd6946d1 6500 return d_demangle (mangled, options, &alc);
69afa80d
AS		 6501}
6502
456cc5cf
SB		 6503int
6504cplus_demangle_v3_callback (const char *mangled, int options,
6505 demangle_callbackref callback, void *opaque)
6506{
6507 return d_demangle_callback (mangled, options, callback, opaque);
6508}
6509
3b60dd8e
BM		 6510/* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling
6511 conventions, but the output formatting is a little different.
456cc5cf
SB		 6512 This instructs the C++ demangler not to emit pointer characters ("*"), to
6513 use Java's namespace separator symbol ("." instead of "::"), and to output
6514 JArray<TYPE> as TYPE[]. */
3b60dd8e
BM		 6515
6516char *
456cc5cf 6517java_demangle_v3 (const char *mangled)
3b60dd8e 6518{
bd6946d1 6519 size_t alc;
3b60dd8e 6520
456cc5cf
SB		 6521 return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, &alc);
6522}
a8f55e51 6523
456cc5cf
SB		 6524int
6525java_demangle_v3_callback (const char *mangled,
6526 demangle_callbackref callback, void *opaque)
6527{
6528 return d_demangle_callback (mangled,
6529 DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX,
6530 callback, opaque);
3b60dd8e
BM		 6531}
6532
bd7e6f2d 6533#endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */
051664b0 6534
84326592 6535#ifndef IN_GLIBCPP_V3
bd6946d1
ILT		 6536
6537/* Demangle a string in order to find out whether it is a constructor
6538 or destructor. Return non-zero on success. Set *CTOR_KIND and
6539 *DTOR_KIND appropriately. */
6540
6541static int
9486db4f
GDR		 6542is_ctor_or_dtor (const char *mangled,
6543 enum gnu_v3_ctor_kinds *ctor_kind,
6544 enum gnu_v3_dtor_kinds *dtor_kind)
7dce2eff 6545{
bd6946d1 6546 struct d_info di;
5e777af5 6547 struct demangle_component *dc;
a51753e4 6548 int ret;
7dce2eff 6549
bd6946d1
ILT		 6550 *ctor_kind = (enum gnu_v3_ctor_kinds) 0;
6551 *dtor_kind = (enum gnu_v3_dtor_kinds) 0;
6552
5e777af5 6553 cplus_demangle_init_info (mangled, DMGL_GNU_V3, strlen (mangled), &di);
7dce2eff 6554
2d6c4025
ILT		 6555 {
6556#ifdef CP_DYNAMIC_ARRAYS
5e777af5
ILT		 6557 __extension__ struct demangle_component comps[di.num_comps];
6558 __extension__ struct demangle_component *subs[di.num_subs];
2d6c4025 6559
456cc5cf
SB		 6560 di.comps = comps;
6561 di.subs = subs;
2d6c4025 6562#else
456cc5cf
SB		 6563 di.comps = alloca (di.num_comps * sizeof (*di.comps));
6564 di.subs = alloca (di.num_subs * sizeof (*di.subs));
2d6c4025 6565#endif
bd6946d1 6566
5e777af5 6567 dc = cplus_demangle_mangled_name (&di, 1);
8d686df2 6568
2d6c4025
ILT		 6569 /* Note that because we did not pass DMGL_PARAMS, we don't expect
6570 to demangle the entire string. */
7dce2eff 6571
2d6c4025
ILT		 6572 ret = 0;
6573 while (dc != NULL)
6574 {
6575 switch (dc->type)
6576 {
9eb85f27
JM		 6577 /* These cannot appear on a constructor or destructor. */
6578 case DEMANGLE_COMPONENT_RESTRICT_THIS:
6579 case DEMANGLE_COMPONENT_VOLATILE_THIS:
6580 case DEMANGLE_COMPONENT_CONST_THIS:
6581 case DEMANGLE_COMPONENT_REFERENCE_THIS:
6582 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
2d6c4025
ILT		 6583 default:
6584 dc = NULL;
6585 break;
5e777af5
ILT		 6586 case DEMANGLE_COMPONENT_TYPED_NAME:
6587 case DEMANGLE_COMPONENT_TEMPLATE:
2d6c4025
ILT		 6588 dc = d_left (dc);
6589 break;
5e777af5
ILT		 6590 case DEMANGLE_COMPONENT_QUAL_NAME:
6591 case DEMANGLE_COMPONENT_LOCAL_NAME:
2d6c4025
ILT		 6592 dc = d_right (dc);
6593 break;
5e777af5 6594 case DEMANGLE_COMPONENT_CTOR:
2d6c4025
ILT		 6595 *ctor_kind = dc->u.s_ctor.kind;
6596 ret = 1;
6597 dc = NULL;
6598 break;
5e777af5 6599 case DEMANGLE_COMPONENT_DTOR:
2d6c4025
ILT		 6600 *dtor_kind = dc->u.s_dtor.kind;
6601 ret = 1;
6602 dc = NULL;
6603 break;
6604 }
6605 }
2d6c4025 6606 }
a51753e4
ILT		 6607
6608 return ret;
7dce2eff
JB		 6609}
6610
bd6946d1
ILT		 6611/* Return whether NAME is the mangled form of a g++ V3 ABI constructor
6612 name. A non-zero return indicates the type of constructor. */
7dce2eff 6613
7dce2eff 6614enum gnu_v3_ctor_kinds
9486db4f 6615is_gnu_v3_mangled_ctor (const char *name)
7dce2eff 6616{
bd6946d1
ILT		 6617 enum gnu_v3_ctor_kinds ctor_kind;
6618 enum gnu_v3_dtor_kinds dtor_kind;
7dce2eff 6619
bd6946d1 6620 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
f08b7eee 6621 return (enum gnu_v3_ctor_kinds) 0;
bd6946d1 6622 return ctor_kind;
7dce2eff
JB		 6623}
6624
6625
bd6946d1
ILT		 6626/* Return whether NAME is the mangled form of a g++ V3 ABI destructor
6627 name. A non-zero return indicates the type of destructor. */
6628
7dce2eff 6629enum gnu_v3_dtor_kinds
9486db4f 6630is_gnu_v3_mangled_dtor (const char *name)
7dce2eff 6631{
bd6946d1
ILT		 6632 enum gnu_v3_ctor_kinds ctor_kind;
6633 enum gnu_v3_dtor_kinds dtor_kind;
7dce2eff 6634
bd6946d1 6635 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
f08b7eee 6636 return (enum gnu_v3_dtor_kinds) 0;
bd6946d1 6637 return dtor_kind;
7dce2eff
JB		 6638}
6639
bd6946d1 6640#endif /* IN_GLIBCPP_V3 */
7dce2eff 6641
69afa80d
AS		 6642#ifdef STANDALONE_DEMANGLER
6643
6644#include "getopt.h"
bd6946d1
ILT		 6645#include "dyn-string.h"
6646
93079c81 6647static void print_usage (FILE* fp, int exit_value);
69afa80d 6648
bd6946d1
ILT		 6649#define IS_ALPHA(CHAR) \
6650 (((CHAR) >= 'a' && (CHAR) <= 'z') \
6651 || ((CHAR) >= 'A' && (CHAR) <= 'Z'))
69afa80d
AS		 6652
6653/* Non-zero if CHAR is a character than can occur in a mangled name. */
3faa108c 6654#define is_mangled_char(CHAR) \
31e0ab1f
AS		 6655 (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \
6656 || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$')
69afa80d
AS		 6657
6658/* The name of this program, as invoked. */
6659const char* program_name;
6660
6661/* Prints usage summary to FP and then exits with EXIT_VALUE. */
6662
6663static void
9486db4f 6664print_usage (FILE* fp, int exit_value)
69afa80d
AS		 6665{
6666 fprintf (fp, "Usage: %s [options] [names ...]\n", program_name);
d01ce591 6667 fprintf (fp, "Options:\n");
69afa80d 6668 fprintf (fp, " -h,--help Display this message.\n");
ad07f5e5 6669 fprintf (fp, " -p,--no-params Don't display function parameters\n");
69afa80d
AS		 6670 fprintf (fp, " -v,--verbose Produce verbose demanglings.\n");
6671 fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n");
6672
6673 exit (exit_value);
6674}
6675
6676/* Option specification for getopt_long. */
5e65297b 6677static const struct option long_options[] =
69afa80d 6678{
ad07f5e5
ILT		 6679 { "help", no_argument, NULL, 'h' },
6680 { "no-params", no_argument, NULL, 'p' },
6681 { "verbose", no_argument, NULL, 'v' },
6682 { NULL, no_argument, NULL, 0 },
69afa80d
AS		 6683};
6684
6685/* Main entry for a demangling filter executable. It will demangle
6686 its command line arguments, if any. If none are provided, it will
6687 filter stdin to stdout, replacing any recognized mangled C++ names
6688 with their demangled equivalents. */
6689
6690int
9486db4f 6691main (int argc, char *argv[])
69afa80d 6692{
69afa80d
AS		 6693 int i;
6694 int opt_char;
bd6946d1 6695 int options = DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES;
69afa80d
AS		 6696
6697 /* Use the program name of this program, as invoked. */
6698 program_name = argv[0];
6699
6700 /* Parse options. */
6701 do
6702 {
ad07f5e5 6703 opt_char = getopt_long (argc, argv, "hpv", long_options, NULL);
69afa80d
AS		 6704 switch (opt_char)
6705 {
6706 case '?': /* Unrecognized option. */
6707 print_usage (stderr, 1);
6708 break;
6709
6710 case 'h':
6711 print_usage (stdout, 0);
6712 break;
6713
ad07f5e5
ILT		 6714 case 'p':
6715 options &= ~ DMGL_PARAMS;
6716 break;
6717
69afa80d 6718 case 'v':
bd6946d1 6719 options |= DMGL_VERBOSE;
69afa80d
AS		 6720 break;
6721 }
6722 }
6723 while (opt_char != -1);
6724
6725 if (optind == argc)
6726 /* No command line arguments were provided. Filter stdin. */
6727 {
6728 dyn_string_t mangled = dyn_string_new (3);
bd6946d1 6729 char *s;
69afa80d
AS		 6730
6731 /* Read all of input. */
6732 while (!feof (stdin))
6733 {
bd6946d1 6734 char c;
69afa80d
AS		 6735
6736 /* Pile characters into mangled until we hit one that can't
6737 occur in a mangled name. */
6738 c = getchar ();
6739 while (!feof (stdin) && is_mangled_char (c))
6740 {
6741 dyn_string_append_char (mangled, c);
6742 if (feof (stdin))
6743 break;
6744 c = getchar ();
6745 }
6746
bd6946d1 6747 if (dyn_string_length (mangled) > 0)
051664b0 6748 {
4a368ffd
ILT		 6749#ifdef IN_GLIBCPP_V3
6750 s = __cxa_demangle (dyn_string_buf (mangled), NULL, NULL, NULL);
6751#else
bd6946d1 6752 s = cplus_demangle_v3 (dyn_string_buf (mangled), options);
4a368ffd 6753#endif
bd6946d1
ILT		 6754
6755 if (s != NULL)
6756 {
6757 fputs (s, stdout);
6758 free (s);
6759 }
6760 else
6761 {
6762 /* It might not have been a mangled name. Print the
6763 original text. */
6764 fputs (dyn_string_buf (mangled), stdout);
6765 }
6766
6767 dyn_string_clear (mangled);
051664b0 6768 }
69afa80d
AS		 6769
6770 /* If we haven't hit EOF yet, we've read one character that
6771 can't occur in a mangled name, so print it out. */
6772 if (!feof (stdin))
6773 putchar (c);
69afa80d
AS		 6774 }
6775
6776 dyn_string_delete (mangled);
69afa80d
AS		 6777 }
6778 else
6779 /* Demangle command line arguments. */
6780 {
69afa80d
AS		 6781 /* Loop over command line arguments. */
6782 for (i = optind; i < argc; ++i)
6783 {
bd6946d1 6784 char *s;
4a368ffd
ILT		 6785#ifdef IN_GLIBCPP_V3
6786 int status;
6787#endif
bd6946d1 6788
69afa80d 6789 /* Attempt to demangle. */
4a368ffd
ILT		 6790#ifdef IN_GLIBCPP_V3
6791 s = __cxa_demangle (argv[i], NULL, NULL, &status);
6792#else
bd6946d1 6793 s = cplus_demangle_v3 (argv[i], options);
4a368ffd 6794#endif
69afa80d
AS		 6795
6796 /* If it worked, print the demangled name. */
bd6946d1 6797 if (s != NULL)
051664b0 6798 {
bd6946d1
ILT		 6799 printf ("%s\n", s);
6800 free (s);
051664b0 6801 }
bd6946d1 6802 else
4a368ffd
ILT		 6803 {
6804#ifdef IN_GLIBCPP_V3
6805 fprintf (stderr, "Failed: %s (status %d)\n", argv[i], status);
6806#else
6807 fprintf (stderr, "Failed: %s\n", argv[i]);
6808#endif
6809 }
69afa80d 6810 }
69afa80d
AS		 6811 }
6812
6813 return 0;
6814}
6815
6816#endif /* STANDALONE_DEMANGLER */
Mirror of https://gcc.gnu.org/git/gcc.git