1 /* Demangler for g++ V3 ABI.
2 Copyright (C) 2003-2018 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor <ian@wasabisystems.com>.
5 This file is part of the libiberty library, which is part of GCC.
7 This file is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
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
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.
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
28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
31 /* This code implements a demangler for the g++ V3 ABI. The ABI is
32 described on this web page:
33 http://www.codesourcery.com/cxx-abi/abi.html#mangling
35 This code was written while looking at the demangler written by
36 Alex Samuel <samuel@codesourcery.com>.
38 This code first pulls the mangled name apart into a list of
39 components, and then walks the list generating the demangled
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)
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)
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)
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
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
64 cplus_demangle_print_callback
65 and other functions defined in the file cp-demint.c.
67 This file also defines some other functions and variables which are
68 only to be used by the file cp-demint.c.
70 Preprocessor macros you can define while compiling this file:
73 If defined, this file defines the following functions, q.v.:
74 char *__cxa_demangle (const char *mangled, char *buf, size_t *len,
76 int __gcclibcxx_demangle_callback (const char *,
78 (const char *, size_t, void *),
80 instead of cplus_demangle_v3[_callback]() and
81 java_demangle_v3[_callback]().
84 If defined, this file defines only __cxa_demangle() and
85 __gcclibcxx_demangle_callback(), and no other publically visible
86 functions or variables.
89 If defined, this file defines a main() function which demangles
90 any arguments, or, if none, demangles stdin.
93 If defined, turns on debugging mode, which prints information on
94 stdout about the mangled string. This is not generally useful.
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. */
101 #if defined (_AIX) && !defined (__GNUC__)
123 # define alloca __builtin_alloca
125 extern char *alloca ();
126 # endif /* __GNUC__ */
128 #endif /* HAVE_ALLOCA_H */
134 # define INT_MAX (int)(((unsigned int) ~0) >> 1) /* 0x7FFFFFFF */
137 #include "ansidecl.h"
138 #include "libiberty.h"
139 #include "demangle.h"
140 #include "cp-demangle.h"
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
148 #define CP_STATIC_IF_GLIBCPP_V3 static
150 #define cplus_demangle_fill_name d_fill_name
151 static int d_fill_name (struct demangle_component *, const char *, int);
153 #define cplus_demangle_fill_extended_operator d_fill_extended_operator
155 d_fill_extended_operator (struct demangle_component *, int,
156 struct demangle_component *);
158 #define cplus_demangle_fill_ctor d_fill_ctor
160 d_fill_ctor (struct demangle_component *, enum gnu_v3_ctor_kinds,
161 struct demangle_component *);
163 #define cplus_demangle_fill_dtor d_fill_dtor
165 d_fill_dtor (struct demangle_component *, enum gnu_v3_dtor_kinds,
166 struct demangle_component *);
168 #define cplus_demangle_mangled_name d_mangled_name
169 static struct demangle_component *d_mangled_name (struct d_info *, int);
171 #define cplus_demangle_type d_type
172 static struct demangle_component *d_type (struct d_info *);
174 #define cplus_demangle_print d_print
175 static char *d_print (int, struct demangle_component *, int, size_t *);
177 #define cplus_demangle_print_callback d_print_callback
178 static int d_print_callback (int, struct demangle_component *,
179 demangle_callbackref, void *);
181 #define cplus_demangle_init_info d_init_info
182 static void d_init_info (const char *, int, size_t, struct d_info *);
184 #else /* ! defined(IN_GLIBCPP_V3) */
185 #define CP_STATIC_IF_GLIBCPP_V3
186 #endif /* ! defined(IN_GLIBCPP_V3) */
188 /* See if the compiler supports dynamic arrays. */
191 #define CP_DYNAMIC_ARRAYS
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__) */
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
207 As of this writing this file has the following undefined references
208 when compiled with -DIN_GLIBCPP_V3: realloc, free, memcpy, strcpy,
211 #define IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
212 #define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z')
213 #define IS_LOWER(c) ((c) >= 'a' && (c) <= 'z')
215 /* The prefix prepended by GCC to an identifier represnting the
216 anonymous namespace. */
217 #define ANONYMOUS_NAMESPACE_PREFIX "_GLOBAL_"
218 #define ANONYMOUS_NAMESPACE_PREFIX_LEN \
219 (sizeof (ANONYMOUS_NAMESPACE_PREFIX) - 1)
221 /* Information we keep for the standard substitutions. */
223 struct d_standard_sub_info
225 /* The code for this substitution. */
227 /* The simple string it expands to. */
228 const char *simple_expansion;
229 /* The length of the simple expansion. */
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;
234 /* The length of the full expansion. */
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;
240 /* The length of set_last_name. */
241 int set_last_name_len;
244 /* Accessors for subtrees of struct demangle_component. */
246 #define d_left(dc) ((dc)->u.s_binary.left)
247 #define d_right(dc) ((dc)->u.s_binary.right)
249 /* A list of templates. This is used while printing. */
251 struct d_print_template
253 /* Next template on the list. */
254 struct d_print_template *next;
256 const struct demangle_component *template_decl;
259 /* A list of type modifiers. This is used while printing. */
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;
267 struct demangle_component *mod;
268 /* Whether this modifier was printed. */
270 /* The list of templates which applies to this modifier. */
271 struct d_print_template *templates;
274 /* We use these structures to hold information during printing. */
276 struct d_growable_string
278 /* Buffer holding the result. */
280 /* Current length of data in buffer. */
282 /* Allocated size of buffer. */
284 /* Set to 1 if we had a memory allocation failure. */
285 int allocation_failure;
288 /* Stack of components, innermost first, used to avoid loops. */
290 struct d_component_stack
292 /* This component. */
293 const struct demangle_component *dc;
294 /* This component's parent. */
295 const struct d_component_stack *parent;
298 /* A demangle component and some scope captured when it was first
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;
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. */
314 struct d_info_checkpoint
322 /* Maximum number of times d_print_comp may be called recursively. */
323 #define MAX_RECURSION_COUNT 1024
325 enum { D_PRINT_BUFFER_LENGTH = 256 };
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. */
333 /* The last character printed, saved individually so that it survives
336 /* Callback function to handle demangled buffer flush. */
337 demangle_callbackref callback;
338 /* Opaque callback argument. */
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.),
344 struct d_print_mod *modifiers;
345 /* Set to 1 if we saw a demangling error. */
346 int demangle_failure;
347 /* Number of times d_print_comp was recursively called. Should not
348 be bigger than MAX_RECURSION_COUNT. */
350 /* Non-zero if we're printing a lambda argument. A template
351 parameter reference actually means 'auto'. */
353 /* The current index into any template argument packs we are using
354 for printing, or -1 to print the whole pack. */
356 /* Number of d_print_flush calls so far. */
357 unsigned long int flush_count;
358 /* Stack of components, innermost first, used to avoid loops. */
359 const struct d_component_stack *component_stack;
360 /* Array of saved scopes for evaluating substitutions. */
361 struct d_saved_scope *saved_scopes;
362 /* Index of the next unused saved scope in the above array. */
363 int next_saved_scope;
364 /* Number of saved scopes in the above array. */
365 int num_saved_scopes;
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;
372 /* The nearest enclosing template, if any. */
373 const struct demangle_component *current_template;
376 #ifdef CP_DEMANGLE_DEBUG
377 static void d_dump (struct demangle_component *, int);
380 static struct demangle_component *
381 d_make_empty (struct d_info *);
383 static struct demangle_component *
384 d_make_comp (struct d_info *, enum demangle_component_type,
385 struct demangle_component *,
386 struct demangle_component *);
388 static struct demangle_component *
389 d_make_name (struct d_info *, const char *, int);
391 static struct demangle_component *
392 d_make_demangle_mangled_name (struct d_info *, const char *);
394 static struct demangle_component *
395 d_make_builtin_type (struct d_info *,
396 const struct demangle_builtin_type_info *);
398 static struct demangle_component *
399 d_make_operator (struct d_info *,
400 const struct demangle_operator_info *);
402 static struct demangle_component *
403 d_make_extended_operator (struct d_info *, int,
404 struct demangle_component *);
406 static struct demangle_component *
407 d_make_ctor (struct d_info *, enum gnu_v3_ctor_kinds,
408 struct demangle_component *);
410 static struct demangle_component *
411 d_make_dtor (struct d_info *, enum gnu_v3_dtor_kinds,
412 struct demangle_component *);
414 static struct demangle_component *
415 d_make_template_param (struct d_info *, int);
417 static struct demangle_component *
418 d_make_sub (struct d_info *, const char *, int);
421 has_return_type (struct demangle_component *);
424 is_ctor_dtor_or_conversion (struct demangle_component *);
426 static struct demangle_component *d_encoding (struct d_info *, int);
428 static struct demangle_component *d_name (struct d_info *);
430 static struct demangle_component *d_nested_name (struct d_info *);
432 static struct demangle_component *d_prefix (struct d_info *);
434 static struct demangle_component *d_unqualified_name (struct d_info *);
436 static struct demangle_component *d_source_name (struct d_info *);
438 static int d_number (struct d_info *);
440 static struct demangle_component *d_identifier (struct d_info *, int);
442 static struct demangle_component *d_operator_name (struct d_info *);
444 static struct demangle_component *d_special_name (struct d_info *);
446 static struct demangle_component *d_parmlist (struct d_info *);
448 static int d_call_offset (struct d_info *, int);
450 static struct demangle_component *d_ctor_dtor_name (struct d_info *);
452 static struct demangle_component **
453 d_cv_qualifiers (struct d_info *, struct demangle_component **, int);
455 static struct demangle_component *
456 d_ref_qualifier (struct d_info *, struct demangle_component *);
458 static struct demangle_component *
459 d_function_type (struct d_info *);
461 static struct demangle_component *
462 d_bare_function_type (struct d_info *, int);
464 static struct demangle_component *
465 d_class_enum_type (struct d_info *);
467 static struct demangle_component *d_array_type (struct d_info *);
469 static struct demangle_component *d_vector_type (struct d_info *);
471 static struct demangle_component *
472 d_pointer_to_member_type (struct d_info *);
474 static struct demangle_component *
475 d_template_param (struct d_info *);
477 static struct demangle_component *d_template_args (struct d_info *);
478 static struct demangle_component *d_template_args_1 (struct d_info *);
480 static struct demangle_component *
481 d_template_arg (struct d_info *);
483 static struct demangle_component *d_expression (struct d_info *);
485 static struct demangle_component *d_expr_primary (struct d_info *);
487 static struct demangle_component *d_local_name (struct d_info *);
489 static int d_discriminator (struct d_info *);
491 static struct demangle_component *d_lambda (struct d_info *);
493 static struct demangle_component *d_unnamed_type (struct d_info *);
495 static struct demangle_component *
496 d_clone_suffix (struct d_info *, struct demangle_component *);
499 d_add_substitution (struct d_info *, struct demangle_component *);
501 static struct demangle_component *d_substitution (struct d_info *, int);
503 static void d_checkpoint (struct d_info *, struct d_info_checkpoint *);
505 static void d_backtrack (struct d_info *, struct d_info_checkpoint *);
507 static void d_growable_string_init (struct d_growable_string *, size_t);
510 d_growable_string_resize (struct d_growable_string *, size_t);
513 d_growable_string_append_buffer (struct d_growable_string *,
514 const char *, size_t);
516 d_growable_string_callback_adapter (const char *, size_t, void *);
519 d_print_init (struct d_print_info *, demangle_callbackref, void *,
520 const struct demangle_component *);
522 static inline void d_print_error (struct d_print_info *);
524 static inline int d_print_saw_error (struct d_print_info *);
526 static inline void d_print_flush (struct d_print_info *);
528 static inline void d_append_char (struct d_print_info *, char);
530 static inline void d_append_buffer (struct d_print_info *,
531 const char *, size_t);
533 static inline void d_append_string (struct d_print_info *, const char *);
535 static inline char d_last_char (struct d_print_info *);
538 d_print_comp (struct d_print_info *, int, struct demangle_component *);
541 d_print_java_identifier (struct d_print_info *, const char *, int);
544 d_print_mod_list (struct d_print_info *, int, struct d_print_mod *, int);
547 d_print_mod (struct d_print_info *, int, struct demangle_component *);
550 d_print_function_type (struct d_print_info *, int,
551 struct demangle_component *,
552 struct d_print_mod *);
555 d_print_array_type (struct d_print_info *, int,
556 struct demangle_component *,
557 struct d_print_mod *);
560 d_print_expr_op (struct d_print_info *, int, struct demangle_component *);
562 static void d_print_cast (struct d_print_info *, int,
563 struct demangle_component *);
564 static void d_print_conversion (struct d_print_info *, int,
565 struct demangle_component *);
567 static int d_demangle_callback (const char *, int,
568 demangle_callbackref, void *);
569 static char *d_demangle (const char *, int, size_t *);
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
581 /* True iff TYPE is a demangling component representing a
582 function-type-qualifier. */
585 is_fnqual_component_type (enum demangle_component_type type)
589 FNQUAL_COMPONENT_CASE:
598 #ifdef CP_DEMANGLE_DEBUG
601 d_dump (struct demangle_component *dc, int indent)
608 printf ("failed demangling\n");
612 for (i = 0; i < indent; ++i)
617 case DEMANGLE_COMPONENT_NAME:
618 printf ("name '%.*s'\n", dc->u.s_name.len, dc->u.s_name.s);
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);
625 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
626 printf ("template parameter %ld\n", dc->u.s_number.number);
628 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
629 printf ("function parameter %ld\n", dc->u.s_number.number);
631 case DEMANGLE_COMPONENT_CTOR:
632 printf ("constructor %d\n", (int) dc->u.s_ctor.kind);
633 d_dump (dc->u.s_ctor.name, indent + 2);
635 case DEMANGLE_COMPONENT_DTOR:
636 printf ("destructor %d\n", (int) dc->u.s_dtor.kind);
637 d_dump (dc->u.s_dtor.name, indent + 2);
639 case DEMANGLE_COMPONENT_SUB_STD:
640 printf ("standard substitution %s\n", dc->u.s_string.string);
642 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
643 printf ("builtin type %s\n", dc->u.s_builtin.type->name);
645 case DEMANGLE_COMPONENT_OPERATOR:
646 printf ("operator %s\n", dc->u.s_operator.op->name);
648 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
649 printf ("extended operator with %d args\n",
650 dc->u.s_extended_operator.args);
651 d_dump (dc->u.s_extended_operator.name, indent + 2);
654 case DEMANGLE_COMPONENT_QUAL_NAME:
655 printf ("qualified name\n");
657 case DEMANGLE_COMPONENT_LOCAL_NAME:
658 printf ("local name\n");
660 case DEMANGLE_COMPONENT_TYPED_NAME:
661 printf ("typed name\n");
663 case DEMANGLE_COMPONENT_TEMPLATE:
664 printf ("template\n");
666 case DEMANGLE_COMPONENT_VTABLE:
669 case DEMANGLE_COMPONENT_VTT:
672 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
673 printf ("construction vtable\n");
675 case DEMANGLE_COMPONENT_TYPEINFO:
676 printf ("typeinfo\n");
678 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
679 printf ("typeinfo name\n");
681 case DEMANGLE_COMPONENT_TYPEINFO_FN:
682 printf ("typeinfo function\n");
684 case DEMANGLE_COMPONENT_THUNK:
687 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
688 printf ("virtual thunk\n");
690 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
691 printf ("covariant thunk\n");
693 case DEMANGLE_COMPONENT_JAVA_CLASS:
694 printf ("java class\n");
696 case DEMANGLE_COMPONENT_GUARD:
699 case DEMANGLE_COMPONENT_REFTEMP:
700 printf ("reference temporary\n");
702 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
703 printf ("hidden alias\n");
705 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
706 printf ("transaction clone\n");
708 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
709 printf ("non-transaction clone\n");
711 case DEMANGLE_COMPONENT_RESTRICT:
712 printf ("restrict\n");
714 case DEMANGLE_COMPONENT_VOLATILE:
715 printf ("volatile\n");
717 case DEMANGLE_COMPONENT_CONST:
720 case DEMANGLE_COMPONENT_RESTRICT_THIS:
721 printf ("restrict this\n");
723 case DEMANGLE_COMPONENT_VOLATILE_THIS:
724 printf ("volatile this\n");
726 case DEMANGLE_COMPONENT_CONST_THIS:
727 printf ("const this\n");
729 case DEMANGLE_COMPONENT_REFERENCE_THIS:
730 printf ("reference this\n");
732 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
733 printf ("rvalue reference this\n");
735 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
736 printf ("transaction_safe this\n");
738 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
739 printf ("vendor type qualifier\n");
741 case DEMANGLE_COMPONENT_POINTER:
742 printf ("pointer\n");
744 case DEMANGLE_COMPONENT_REFERENCE:
745 printf ("reference\n");
747 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
748 printf ("rvalue reference\n");
750 case DEMANGLE_COMPONENT_COMPLEX:
751 printf ("complex\n");
753 case DEMANGLE_COMPONENT_IMAGINARY:
754 printf ("imaginary\n");
756 case DEMANGLE_COMPONENT_VENDOR_TYPE:
757 printf ("vendor type\n");
759 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
760 printf ("function type\n");
762 case DEMANGLE_COMPONENT_ARRAY_TYPE:
763 printf ("array type\n");
765 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
766 printf ("pointer to member type\n");
768 case DEMANGLE_COMPONENT_FIXED_TYPE:
769 printf ("fixed-point type, accum? %d, sat? %d\n",
770 dc->u.s_fixed.accum, dc->u.s_fixed.sat);
771 d_dump (dc->u.s_fixed.length, indent + 2);
773 case DEMANGLE_COMPONENT_ARGLIST:
774 printf ("argument list\n");
776 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
777 printf ("template argument list\n");
779 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
780 printf ("initializer list\n");
782 case DEMANGLE_COMPONENT_CAST:
785 case DEMANGLE_COMPONENT_CONVERSION:
786 printf ("conversion operator\n");
788 case DEMANGLE_COMPONENT_NULLARY:
789 printf ("nullary operator\n");
791 case DEMANGLE_COMPONENT_UNARY:
792 printf ("unary operator\n");
794 case DEMANGLE_COMPONENT_BINARY:
795 printf ("binary operator\n");
797 case DEMANGLE_COMPONENT_BINARY_ARGS:
798 printf ("binary operator arguments\n");
800 case DEMANGLE_COMPONENT_TRINARY:
801 printf ("trinary operator\n");
803 case DEMANGLE_COMPONENT_TRINARY_ARG1:
804 printf ("trinary operator arguments 1\n");
806 case DEMANGLE_COMPONENT_TRINARY_ARG2:
807 printf ("trinary operator arguments 1\n");
809 case DEMANGLE_COMPONENT_LITERAL:
810 printf ("literal\n");
812 case DEMANGLE_COMPONENT_LITERAL_NEG:
813 printf ("negative literal\n");
815 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
816 printf ("java resource\n");
818 case DEMANGLE_COMPONENT_COMPOUND_NAME:
819 printf ("compound name\n");
821 case DEMANGLE_COMPONENT_CHARACTER:
822 printf ("character '%c'\n", dc->u.s_character.character);
824 case DEMANGLE_COMPONENT_NUMBER:
825 printf ("number %ld\n", dc->u.s_number.number);
827 case DEMANGLE_COMPONENT_DECLTYPE:
828 printf ("decltype\n");
830 case DEMANGLE_COMPONENT_PACK_EXPANSION:
831 printf ("pack expansion\n");
833 case DEMANGLE_COMPONENT_TLS_INIT:
834 printf ("tls init function\n");
836 case DEMANGLE_COMPONENT_TLS_WRAPPER:
837 printf ("tls wrapper function\n");
839 case DEMANGLE_COMPONENT_DEFAULT_ARG:
840 printf ("default argument %d\n", dc->u.s_unary_num.num);
841 d_dump (dc->u.s_unary_num.sub, indent+2);
843 case DEMANGLE_COMPONENT_LAMBDA:
844 printf ("lambda %d\n", dc->u.s_unary_num.num);
845 d_dump (dc->u.s_unary_num.sub, indent+2);
849 d_dump (d_left (dc), indent + 2);
850 d_dump (d_right (dc), indent + 2);
853 #endif /* CP_DEMANGLE_DEBUG */
855 /* Fill in a DEMANGLE_COMPONENT_NAME. */
857 CP_STATIC_IF_GLIBCPP_V3
859 cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
861 if (p == NULL || s == NULL || len == 0)
864 p->type = DEMANGLE_COMPONENT_NAME;
866 p->u.s_name.len = len;
870 /* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
872 CP_STATIC_IF_GLIBCPP_V3
874 cplus_demangle_fill_extended_operator (struct demangle_component *p, int args,
875 struct demangle_component *name)
877 if (p == NULL || args < 0 || name == NULL)
880 p->type = DEMANGLE_COMPONENT_EXTENDED_OPERATOR;
881 p->u.s_extended_operator.args = args;
882 p->u.s_extended_operator.name = name;
886 /* Fill in a DEMANGLE_COMPONENT_CTOR. */
888 CP_STATIC_IF_GLIBCPP_V3
890 cplus_demangle_fill_ctor (struct demangle_component *p,
891 enum gnu_v3_ctor_kinds kind,
892 struct demangle_component *name)
896 || (int) kind < gnu_v3_complete_object_ctor
897 || (int) kind > gnu_v3_object_ctor_group)
900 p->type = DEMANGLE_COMPONENT_CTOR;
901 p->u.s_ctor.kind = kind;
902 p->u.s_ctor.name = name;
906 /* Fill in a DEMANGLE_COMPONENT_DTOR. */
908 CP_STATIC_IF_GLIBCPP_V3
910 cplus_demangle_fill_dtor (struct demangle_component *p,
911 enum gnu_v3_dtor_kinds kind,
912 struct demangle_component *name)
916 || (int) kind < gnu_v3_deleting_dtor
917 || (int) kind > gnu_v3_object_dtor_group)
920 p->type = DEMANGLE_COMPONENT_DTOR;
921 p->u.s_dtor.kind = kind;
922 p->u.s_dtor.name = name;
926 /* Add a new component. */
928 static struct demangle_component *
929 d_make_empty (struct d_info *di)
931 struct demangle_component *p;
933 if (di->next_comp >= di->num_comps)
935 p = &di->comps[di->next_comp];
941 /* Add a new generic component. */
943 static struct demangle_component *
944 d_make_comp (struct d_info *di, enum demangle_component_type type,
945 struct demangle_component *left,
946 struct demangle_component *right)
948 struct demangle_component *p;
950 /* We check for errors here. A typical error would be a NULL return
951 from a subroutine. We catch those here, and return NULL
955 /* These types require two parameters. */
956 case DEMANGLE_COMPONENT_QUAL_NAME:
957 case DEMANGLE_COMPONENT_LOCAL_NAME:
958 case DEMANGLE_COMPONENT_TYPED_NAME:
959 case DEMANGLE_COMPONENT_TAGGED_NAME:
960 case DEMANGLE_COMPONENT_TEMPLATE:
961 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
962 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
963 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
964 case DEMANGLE_COMPONENT_UNARY:
965 case DEMANGLE_COMPONENT_BINARY:
966 case DEMANGLE_COMPONENT_BINARY_ARGS:
967 case DEMANGLE_COMPONENT_TRINARY:
968 case DEMANGLE_COMPONENT_TRINARY_ARG1:
969 case DEMANGLE_COMPONENT_LITERAL:
970 case DEMANGLE_COMPONENT_LITERAL_NEG:
971 case DEMANGLE_COMPONENT_COMPOUND_NAME:
972 case DEMANGLE_COMPONENT_VECTOR_TYPE:
973 case DEMANGLE_COMPONENT_CLONE:
974 if (left == NULL || right == NULL)
978 /* These types only require one parameter. */
979 case DEMANGLE_COMPONENT_VTABLE:
980 case DEMANGLE_COMPONENT_VTT:
981 case DEMANGLE_COMPONENT_TYPEINFO:
982 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
983 case DEMANGLE_COMPONENT_TYPEINFO_FN:
984 case DEMANGLE_COMPONENT_THUNK:
985 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
986 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
987 case DEMANGLE_COMPONENT_JAVA_CLASS:
988 case DEMANGLE_COMPONENT_GUARD:
989 case DEMANGLE_COMPONENT_TLS_INIT:
990 case DEMANGLE_COMPONENT_TLS_WRAPPER:
991 case DEMANGLE_COMPONENT_REFTEMP:
992 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
993 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
994 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
995 case DEMANGLE_COMPONENT_POINTER:
996 case DEMANGLE_COMPONENT_REFERENCE:
997 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
998 case DEMANGLE_COMPONENT_COMPLEX:
999 case DEMANGLE_COMPONENT_IMAGINARY:
1000 case DEMANGLE_COMPONENT_VENDOR_TYPE:
1001 case DEMANGLE_COMPONENT_CAST:
1002 case DEMANGLE_COMPONENT_CONVERSION:
1003 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
1004 case DEMANGLE_COMPONENT_DECLTYPE:
1005 case DEMANGLE_COMPONENT_PACK_EXPANSION:
1006 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
1007 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
1008 case DEMANGLE_COMPONENT_NULLARY:
1009 case DEMANGLE_COMPONENT_TRINARY_ARG2:
1014 /* This needs a right parameter, but the left parameter can be
1016 case DEMANGLE_COMPONENT_ARRAY_TYPE:
1017 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
1022 /* These are allowed to have no parameters--in some cases they
1023 will be filled in later. */
1024 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
1025 case DEMANGLE_COMPONENT_RESTRICT:
1026 case DEMANGLE_COMPONENT_VOLATILE:
1027 case DEMANGLE_COMPONENT_CONST:
1028 case DEMANGLE_COMPONENT_ARGLIST:
1029 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
1030 FNQUAL_COMPONENT_CASE:
1033 /* Other types should not be seen here. */
1038 p = d_make_empty (di);
1042 p->u.s_binary.left = left;
1043 p->u.s_binary.right = right;
1048 /* Add a new demangle mangled name component. */
1050 static struct demangle_component *
1051 d_make_demangle_mangled_name (struct d_info *di, const char *s)
1053 if (d_peek_char (di) != '_' || d_peek_next_char (di) != 'Z')
1054 return d_make_name (di, s, strlen (s));
1056 return d_encoding (di, 0);
1059 /* Add a new name component. */
1061 static struct demangle_component *
1062 d_make_name (struct d_info *di, const char *s, int len)
1064 struct demangle_component *p;
1066 p = d_make_empty (di);
1067 if (! cplus_demangle_fill_name (p, s, len))
1072 /* Add a new builtin type component. */
1074 static struct demangle_component *
1075 d_make_builtin_type (struct d_info *di,
1076 const struct demangle_builtin_type_info *type)
1078 struct demangle_component *p;
1082 p = d_make_empty (di);
1085 p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
1086 p->u.s_builtin.type = type;
1091 /* Add a new operator component. */
1093 static struct demangle_component *
1094 d_make_operator (struct d_info *di, const struct demangle_operator_info *op)
1096 struct demangle_component *p;
1098 p = d_make_empty (di);
1101 p->type = DEMANGLE_COMPONENT_OPERATOR;
1102 p->u.s_operator.op = op;
1107 /* Add a new extended operator component. */
1109 static struct demangle_component *
1110 d_make_extended_operator (struct d_info *di, int args,
1111 struct demangle_component *name)
1113 struct demangle_component *p;
1115 p = d_make_empty (di);
1116 if (! cplus_demangle_fill_extended_operator (p, args, name))
1121 static struct demangle_component *
1122 d_make_default_arg (struct d_info *di, int num,
1123 struct demangle_component *sub)
1125 struct demangle_component *p = d_make_empty (di);
1128 p->type = DEMANGLE_COMPONENT_DEFAULT_ARG;
1129 p->u.s_unary_num.num = num;
1130 p->u.s_unary_num.sub = sub;
1135 /* Add a new constructor component. */
1137 static struct demangle_component *
1138 d_make_ctor (struct d_info *di, enum gnu_v3_ctor_kinds kind,
1139 struct demangle_component *name)
1141 struct demangle_component *p;
1143 p = d_make_empty (di);
1144 if (! cplus_demangle_fill_ctor (p, kind, name))
1149 /* Add a new destructor component. */
1151 static struct demangle_component *
1152 d_make_dtor (struct d_info *di, enum gnu_v3_dtor_kinds kind,
1153 struct demangle_component *name)
1155 struct demangle_component *p;
1157 p = d_make_empty (di);
1158 if (! cplus_demangle_fill_dtor (p, kind, name))
1163 /* Add a new template parameter. */
1165 static struct demangle_component *
1166 d_make_template_param (struct d_info *di, int i)
1168 struct demangle_component *p;
1170 p = d_make_empty (di);
1173 p->type = DEMANGLE_COMPONENT_TEMPLATE_PARAM;
1174 p->u.s_number.number = i;
1179 /* Add a new function parameter. */
1181 static struct demangle_component *
1182 d_make_function_param (struct d_info *di, int i)
1184 struct demangle_component *p;
1186 p = d_make_empty (di);
1189 p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM;
1190 p->u.s_number.number = i;
1195 /* Add a new standard substitution component. */
1197 static struct demangle_component *
1198 d_make_sub (struct d_info *di, const char *name, int len)
1200 struct demangle_component *p;
1202 p = d_make_empty (di);
1205 p->type = DEMANGLE_COMPONENT_SUB_STD;
1206 p->u.s_string.string = name;
1207 p->u.s_string.len = len;
1212 /* <mangled-name> ::= _Z <encoding> [<clone-suffix>]*
1214 TOP_LEVEL is non-zero when called at the top level. */
1216 CP_STATIC_IF_GLIBCPP_V3
1217 struct demangle_component *
1218 cplus_demangle_mangled_name (struct d_info *di, int top_level)
1220 struct demangle_component *p;
1222 if (! d_check_char (di, '_')
1223 /* Allow missing _ if not at toplevel to work around a
1224 bug in G++ abi-version=2 mangling; see the comment in
1225 write_template_arg. */
1228 if (! d_check_char (di, 'Z'))
1230 p = d_encoding (di, top_level);
1232 /* If at top level and parsing parameters, check for a clone
1234 if (top_level && (di->options & DMGL_PARAMS) != 0)
1235 while (d_peek_char (di) == '.'
1236 && (IS_LOWER (d_peek_next_char (di))
1237 || d_peek_next_char (di) == '_'
1238 || IS_DIGIT (d_peek_next_char (di))))
1239 p = d_clone_suffix (di, p);
1244 /* Return whether a function should have a return type. The argument
1245 is the function name, which may be qualified in various ways. The
1246 rules are that template functions have return types with some
1247 exceptions, function types which are not part of a function name
1248 mangling have return types with some exceptions, and non-template
1249 function names do not have return types. The exceptions are that
1250 constructors, destructors, and conversion operators do not have
1254 has_return_type (struct demangle_component *dc)
1262 case DEMANGLE_COMPONENT_LOCAL_NAME:
1263 return has_return_type (d_right (dc));
1264 case DEMANGLE_COMPONENT_TEMPLATE:
1265 return ! is_ctor_dtor_or_conversion (d_left (dc));
1266 FNQUAL_COMPONENT_CASE:
1267 return has_return_type (d_left (dc));
1271 /* Return whether a name is a constructor, a destructor, or a
1272 conversion operator. */
1275 is_ctor_dtor_or_conversion (struct demangle_component *dc)
1283 case DEMANGLE_COMPONENT_QUAL_NAME:
1284 case DEMANGLE_COMPONENT_LOCAL_NAME:
1285 return is_ctor_dtor_or_conversion (d_right (dc));
1286 case DEMANGLE_COMPONENT_CTOR:
1287 case DEMANGLE_COMPONENT_DTOR:
1288 case DEMANGLE_COMPONENT_CONVERSION:
1293 /* <encoding> ::= <(function) name> <bare-function-type>
1297 TOP_LEVEL is non-zero when called at the top level, in which case
1298 if DMGL_PARAMS is not set we do not demangle the function
1299 parameters. We only set this at the top level, because otherwise
1300 we would not correctly demangle names in local scopes. */
1302 static struct demangle_component *
1303 d_encoding (struct d_info *di, int top_level)
1305 char peek = d_peek_char (di);
1306 struct demangle_component *dc;
1308 if (peek == 'G' || peek == 'T')
1309 dc = d_special_name (di);
1315 /* Failed already. */;
1316 else if (top_level && (di->options & DMGL_PARAMS) == 0)
1318 /* Strip off any initial CV-qualifiers, as they really apply
1319 to the `this' parameter, and they were not output by the
1320 v2 demangler without DMGL_PARAMS. */
1321 while (is_fnqual_component_type (dc->type))
1324 /* If the top level is a DEMANGLE_COMPONENT_LOCAL_NAME, then
1325 there may be function-qualifiers on its right argument which
1326 really apply here; this happens when parsing a class
1327 which is local to a function. */
1328 if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
1329 while (is_fnqual_component_type (d_right (dc)->type))
1330 d_right (dc) = d_left (d_right (dc));
1334 peek = d_peek_char (di);
1335 if (peek != '\0' && peek != 'E')
1337 struct demangle_component *ftype;
1339 ftype = d_bare_function_type (di, has_return_type (dc));
1342 /* If this is a non-top-level local-name, clear the
1343 return type, so it doesn't confuse the user by
1344 being confused with the return type of whaever
1345 this is nested within. */
1346 if (!top_level && dc->type == DEMANGLE_COMPONENT_LOCAL_NAME
1347 && ftype->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
1348 d_left (ftype) = NULL;
1350 dc = d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME,
1362 /* <tagged-name> ::= <name> B <source-name> */
1364 static struct demangle_component *
1365 d_abi_tags (struct d_info *di, struct demangle_component *dc)
1367 struct demangle_component *hold_last_name;
1370 /* Preserve the last name, so the ABI tag doesn't clobber it. */
1371 hold_last_name = di->last_name;
1373 while (peek = d_peek_char (di),
1376 struct demangle_component *tag;
1378 tag = d_source_name (di);
1379 dc = d_make_comp (di, DEMANGLE_COMPONENT_TAGGED_NAME, dc, tag);
1382 di->last_name = hold_last_name;
1387 /* <name> ::= <nested-name>
1389 ::= <unscoped-template-name> <template-args>
1392 <unscoped-name> ::= <unqualified-name>
1393 ::= St <unqualified-name>
1395 <unscoped-template-name> ::= <unscoped-name>
1399 static struct demangle_component *
1400 d_name (struct d_info *di)
1402 char peek = d_peek_char (di);
1403 struct demangle_component *dc;
1408 return d_nested_name (di);
1411 return d_local_name (di);
1414 return d_unqualified_name (di);
1420 if (d_peek_next_char (di) != 't')
1422 dc = d_substitution (di, 0);
1428 dc = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME,
1429 d_make_name (di, "std", 3),
1430 d_unqualified_name (di));
1435 if (d_peek_char (di) != 'I')
1437 /* The grammar does not permit this case to occur if we
1438 called d_substitution() above (i.e., subst == 1). We
1439 don't bother to check. */
1443 /* This is <template-args>, which means that we just saw
1444 <unscoped-template-name>, which is a substitution
1445 candidate if we didn't just get it from a
1449 if (! d_add_substitution (di, dc))
1452 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1453 d_template_args (di));
1461 dc = d_unqualified_name (di);
1462 if (d_peek_char (di) == 'I')
1464 /* This is <template-args>, which means that we just saw
1465 <unscoped-template-name>, which is a substitution
1467 if (! d_add_substitution (di, dc))
1469 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1470 d_template_args (di));
1476 /* <nested-name> ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E
1477 ::= N [<CV-qualifiers>] [<ref-qualifier>] <template-prefix> <template-args> E
1480 static struct demangle_component *
1481 d_nested_name (struct d_info *di)
1483 struct demangle_component *ret;
1484 struct demangle_component **pret;
1485 struct demangle_component *rqual;
1487 if (! d_check_char (di, 'N'))
1490 pret = d_cv_qualifiers (di, &ret, 1);
1494 /* Parse the ref-qualifier now and then attach it
1495 once we have something to attach it to. */
1496 rqual = d_ref_qualifier (di, NULL);
1498 *pret = d_prefix (di);
1504 d_left (rqual) = ret;
1508 if (! d_check_char (di, 'E'))
1514 /* <prefix> ::= <prefix> <unqualified-name>
1515 ::= <template-prefix> <template-args>
1516 ::= <template-param>
1521 <template-prefix> ::= <prefix> <(template) unqualified-name>
1522 ::= <template-param>
1526 static struct demangle_component *
1527 d_prefix (struct d_info *di)
1529 struct demangle_component *ret = NULL;
1534 enum demangle_component_type comb_type;
1535 struct demangle_component *dc;
1537 peek = d_peek_char (di);
1541 /* The older code accepts a <local-name> here, but I don't see
1542 that in the grammar. The older code does not accept a
1543 <template-param> here. */
1545 comb_type = DEMANGLE_COMPONENT_QUAL_NAME;
1548 char peek2 = d_peek_next_char (di);
1549 if (peek2 == 'T' || peek2 == 't')
1551 dc = cplus_demangle_type (di);
1553 /* Destructor name. */
1554 dc = d_unqualified_name (di);
1556 else if (IS_DIGIT (peek)
1561 dc = d_unqualified_name (di);
1562 else if (peek == 'S')
1563 dc = d_substitution (di, 1);
1564 else if (peek == 'I')
1568 comb_type = DEMANGLE_COMPONENT_TEMPLATE;
1569 dc = d_template_args (di);
1571 else if (peek == 'T')
1572 dc = d_template_param (di);
1573 else if (peek == 'E')
1575 else if (peek == 'M')
1577 /* Initializer scope for a lambda. We don't need to represent
1578 this; the normal code will just treat the variable as a type
1579 scope, which gives appropriate output. */
1591 ret = d_make_comp (di, comb_type, ret, dc);
1593 if (peek != 'S' && d_peek_char (di) != 'E')
1595 if (! d_add_substitution (di, ret))
1601 /* <unqualified-name> ::= <operator-name>
1602 ::= <ctor-dtor-name>
1604 ::= <local-source-name>
1606 <local-source-name> ::= L <source-name> <discriminator>
1609 static struct demangle_component *
1610 d_unqualified_name (struct d_info *di)
1612 struct demangle_component *ret;
1615 peek = d_peek_char (di);
1616 if (IS_DIGIT (peek))
1617 ret = d_source_name (di);
1618 else if (IS_LOWER (peek))
1620 if (peek == 'o' && d_peek_next_char (di) == 'n')
1622 ret = d_operator_name (di);
1623 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR)
1625 di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2;
1626 if (!strcmp (ret->u.s_operator.op->code, "li"))
1627 ret = d_make_comp (di, DEMANGLE_COMPONENT_UNARY, ret,
1628 d_source_name (di));
1631 else if (peek == 'C' || peek == 'D')
1632 ret = d_ctor_dtor_name (di);
1633 else if (peek == 'L')
1637 ret = d_source_name (di);
1640 if (! d_discriminator (di))
1643 else if (peek == 'U')
1645 switch (d_peek_next_char (di))
1648 ret = d_lambda (di);
1651 ret = d_unnamed_type (di);
1660 if (d_peek_char (di) == 'B')
1661 ret = d_abi_tags (di, ret);
1665 /* <source-name> ::= <(positive length) number> <identifier> */
1667 static struct demangle_component *
1668 d_source_name (struct d_info *di)
1671 struct demangle_component *ret;
1673 len = d_number (di);
1676 ret = d_identifier (di, len);
1677 di->last_name = ret;
1681 /* number ::= [n] <(non-negative decimal integer)> */
1684 d_number (struct d_info *di)
1691 peek = d_peek_char (di);
1696 peek = d_peek_char (di);
1702 if (! IS_DIGIT (peek))
1708 if (ret > ((INT_MAX - (peek - '0')) / 10))
1710 ret = ret * 10 + peek - '0';
1712 peek = d_peek_char (di);
1716 /* Like d_number, but returns a demangle_component. */
1718 static struct demangle_component *
1719 d_number_component (struct d_info *di)
1721 struct demangle_component *ret = d_make_empty (di);
1724 ret->type = DEMANGLE_COMPONENT_NUMBER;
1725 ret->u.s_number.number = d_number (di);
1730 /* identifier ::= <(unqualified source code identifier)> */
1732 static struct demangle_component *
1733 d_identifier (struct d_info *di, int len)
1739 if (di->send - name < len)
1742 d_advance (di, len);
1744 /* A Java mangled name may have a trailing '$' if it is a C++
1745 keyword. This '$' is not included in the length count. We just
1747 if ((di->options & DMGL_JAVA) != 0
1748 && d_peek_char (di) == '$')
1751 /* Look for something which looks like a gcc encoding of an
1752 anonymous namespace, and replace it with a more user friendly
1754 if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2
1755 && memcmp (name, ANONYMOUS_NAMESPACE_PREFIX,
1756 ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0)
1760 s = name + ANONYMOUS_NAMESPACE_PREFIX_LEN;
1761 if ((*s == '.' || *s == '_' || *s == '$')
1764 di->expansion -= len - sizeof "(anonymous namespace)";
1765 return d_make_name (di, "(anonymous namespace)",
1766 sizeof "(anonymous namespace)" - 1);
1770 return d_make_name (di, name, len);
1773 /* operator_name ::= many different two character encodings.
1775 ::= v <digit> <source-name>
1777 This list is sorted for binary search. */
1779 #define NL(s) s, (sizeof s) - 1
1781 CP_STATIC_IF_GLIBCPP_V3
1782 const struct demangle_operator_info cplus_demangle_operators[] =
1784 { "aN", NL ("&="), 2 },
1785 { "aS", NL ("="), 2 },
1786 { "aa", NL ("&&"), 2 },
1787 { "ad", NL ("&"), 1 },
1788 { "an", NL ("&"), 2 },
1789 { "at", NL ("alignof "), 1 },
1790 { "az", NL ("alignof "), 1 },
1791 { "cc", NL ("const_cast"), 2 },
1792 { "cl", NL ("()"), 2 },
1793 { "cm", NL (","), 2 },
1794 { "co", NL ("~"), 1 },
1795 { "dV", NL ("/="), 2 },
1796 { "da", NL ("delete[] "), 1 },
1797 { "dc", NL ("dynamic_cast"), 2 },
1798 { "de", NL ("*"), 1 },
1799 { "dl", NL ("delete "), 1 },
1800 { "ds", NL (".*"), 2 },
1801 { "dt", NL ("."), 2 },
1802 { "dv", NL ("/"), 2 },
1803 { "eO", NL ("^="), 2 },
1804 { "eo", NL ("^"), 2 },
1805 { "eq", NL ("=="), 2 },
1806 { "fL", NL ("..."), 3 },
1807 { "fR", NL ("..."), 3 },
1808 { "fl", NL ("..."), 2 },
1809 { "fr", NL ("..."), 2 },
1810 { "ge", NL (">="), 2 },
1811 { "gs", NL ("::"), 1 },
1812 { "gt", NL (">"), 2 },
1813 { "ix", NL ("[]"), 2 },
1814 { "lS", NL ("<<="), 2 },
1815 { "le", NL ("<="), 2 },
1816 { "li", NL ("operator\"\" "), 1 },
1817 { "ls", NL ("<<"), 2 },
1818 { "lt", NL ("<"), 2 },
1819 { "mI", NL ("-="), 2 },
1820 { "mL", NL ("*="), 2 },
1821 { "mi", NL ("-"), 2 },
1822 { "ml", NL ("*"), 2 },
1823 { "mm", NL ("--"), 1 },
1824 { "na", NL ("new[]"), 3 },
1825 { "ne", NL ("!="), 2 },
1826 { "ng", NL ("-"), 1 },
1827 { "nt", NL ("!"), 1 },
1828 { "nw", NL ("new"), 3 },
1829 { "oR", NL ("|="), 2 },
1830 { "oo", NL ("||"), 2 },
1831 { "or", NL ("|"), 2 },
1832 { "pL", NL ("+="), 2 },
1833 { "pl", NL ("+"), 2 },
1834 { "pm", NL ("->*"), 2 },
1835 { "pp", NL ("++"), 1 },
1836 { "ps", NL ("+"), 1 },
1837 { "pt", NL ("->"), 2 },
1838 { "qu", NL ("?"), 3 },
1839 { "rM", NL ("%="), 2 },
1840 { "rS", NL (">>="), 2 },
1841 { "rc", NL ("reinterpret_cast"), 2 },
1842 { "rm", NL ("%"), 2 },
1843 { "rs", NL (">>"), 2 },
1844 { "sP", NL ("sizeof..."), 1 },
1845 { "sZ", NL ("sizeof..."), 1 },
1846 { "sc", NL ("static_cast"), 2 },
1847 { "st", NL ("sizeof "), 1 },
1848 { "sz", NL ("sizeof "), 1 },
1849 { "tr", NL ("throw"), 0 },
1850 { "tw", NL ("throw "), 1 },
1851 { NULL, NULL, 0, 0 }
1854 static struct demangle_component *
1855 d_operator_name (struct d_info *di)
1860 c1 = d_next_char (di);
1861 c2 = d_next_char (di);
1862 if (c1 == 'v' && IS_DIGIT (c2))
1863 return d_make_extended_operator (di, c2 - '0', d_source_name (di));
1864 else if (c1 == 'c' && c2 == 'v')
1866 struct demangle_component *type;
1867 int was_conversion = di->is_conversion;
1868 struct demangle_component *res;
1870 di->is_conversion = ! di->is_expression;
1871 type = cplus_demangle_type (di);
1872 if (di->is_conversion)
1873 res = d_make_comp (di, DEMANGLE_COMPONENT_CONVERSION, type, NULL);
1875 res = d_make_comp (di, DEMANGLE_COMPONENT_CAST, type, NULL);
1876 di->is_conversion = was_conversion;
1881 /* LOW is the inclusive lower bound. */
1883 /* HIGH is the exclusive upper bound. We subtract one to ignore
1884 the sentinel at the end of the array. */
1885 int high = ((sizeof (cplus_demangle_operators)
1886 / sizeof (cplus_demangle_operators[0]))
1892 const struct demangle_operator_info *p;
1894 i = low + (high - low) / 2;
1895 p = cplus_demangle_operators + i;
1897 if (c1 == p->code[0] && c2 == p->code[1])
1898 return d_make_operator (di, p);
1900 if (c1 < p->code[0] || (c1 == p->code[0] && c2 < p->code[1]))
1910 static struct demangle_component *
1911 d_make_character (struct d_info *di, int c)
1913 struct demangle_component *p;
1914 p = d_make_empty (di);
1917 p->type = DEMANGLE_COMPONENT_CHARACTER;
1918 p->u.s_character.character = c;
1923 static struct demangle_component *
1924 d_java_resource (struct d_info *di)
1926 struct demangle_component *p = NULL;
1927 struct demangle_component *next = NULL;
1932 len = d_number (di);
1936 /* Eat the leading '_'. */
1937 if (d_next_char (di) != '_')
1950 /* Each chunk is either a '$' escape... */
1968 next = d_make_character (di, c);
1976 /* ... or a sequence of characters. */
1979 while (i < len && str[i] && str[i] != '$')
1982 next = d_make_name (di, str, i);
1995 p = d_make_comp (di, DEMANGLE_COMPONENT_COMPOUND_NAME, p, next);
2001 p = d_make_comp (di, DEMANGLE_COMPONENT_JAVA_RESOURCE, p, NULL);
2006 /* <special-name> ::= TV <type>
2010 ::= GV <(object) name>
2011 ::= T <call-offset> <(base) encoding>
2012 ::= Tc <call-offset> <call-offset> <(base) encoding>
2013 Also g++ extensions:
2014 ::= TC <type> <(offset) number> _ <(base) type>
2019 ::= Gr <resource name>
2024 static struct demangle_component *
2025 d_special_name (struct d_info *di)
2027 di->expansion += 20;
2028 if (d_check_char (di, 'T'))
2030 switch (d_next_char (di))
2034 return d_make_comp (di, DEMANGLE_COMPONENT_VTABLE,
2035 cplus_demangle_type (di), NULL);
2037 di->expansion -= 10;
2038 return d_make_comp (di, DEMANGLE_COMPONENT_VTT,
2039 cplus_demangle_type (di), NULL);
2041 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO,
2042 cplus_demangle_type (di), NULL);
2044 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_NAME,
2045 cplus_demangle_type (di), NULL);
2048 if (! d_call_offset (di, 'h'))
2050 return d_make_comp (di, DEMANGLE_COMPONENT_THUNK,
2051 d_encoding (di, 0), NULL);
2054 if (! d_call_offset (di, 'v'))
2056 return d_make_comp (di, DEMANGLE_COMPONENT_VIRTUAL_THUNK,
2057 d_encoding (di, 0), NULL);
2060 if (! d_call_offset (di, '\0'))
2062 if (! d_call_offset (di, '\0'))
2064 return d_make_comp (di, DEMANGLE_COMPONENT_COVARIANT_THUNK,
2065 d_encoding (di, 0), NULL);
2069 struct demangle_component *derived_type;
2071 struct demangle_component *base_type;
2073 derived_type = cplus_demangle_type (di);
2074 offset = d_number (di);
2077 if (! d_check_char (di, '_'))
2079 base_type = cplus_demangle_type (di);
2080 /* We don't display the offset. FIXME: We should display
2081 it in verbose mode. */
2083 return d_make_comp (di, DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
2084 base_type, derived_type);
2088 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_FN,
2089 cplus_demangle_type (di), NULL);
2091 return d_make_comp (di, DEMANGLE_COMPONENT_JAVA_CLASS,
2092 cplus_demangle_type (di), NULL);
2095 return d_make_comp (di, DEMANGLE_COMPONENT_TLS_INIT,
2099 return d_make_comp (di, DEMANGLE_COMPONENT_TLS_WRAPPER,
2106 else if (d_check_char (di, 'G'))
2108 switch (d_next_char (di))
2111 return d_make_comp (di, DEMANGLE_COMPONENT_GUARD,
2116 struct demangle_component *name = d_name (di);
2117 return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, name,
2118 d_number_component (di));
2122 return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS,
2123 d_encoding (di, 0), NULL);
2126 switch (d_next_char (di))
2129 return d_make_comp (di, DEMANGLE_COMPONENT_NONTRANSACTION_CLONE,
2130 d_encoding (di, 0), NULL);
2132 /* ??? The proposal is that other letters (such as 'h') stand
2133 for different variants of transaction cloning, such as
2134 compiling directly for hardware transaction support. But
2135 they still should all be transactional clones of some sort
2136 so go ahead and call them that. */
2138 return d_make_comp (di, DEMANGLE_COMPONENT_TRANSACTION_CLONE,
2139 d_encoding (di, 0), NULL);
2143 return d_java_resource (di);
2153 /* <call-offset> ::= h <nv-offset> _
2156 <nv-offset> ::= <(offset) number>
2158 <v-offset> ::= <(offset) number> _ <(virtual offset) number>
2160 The C parameter, if not '\0', is a character we just read which is
2161 the start of the <call-offset>.
2163 We don't display the offset information anywhere. FIXME: We should
2164 display it in verbose mode. */
2167 d_call_offset (struct d_info *di, int c)
2170 c = d_next_char (di);
2177 if (! d_check_char (di, '_'))
2184 if (! d_check_char (di, '_'))
2190 /* <ctor-dtor-name> ::= C1
2198 static struct demangle_component *
2199 d_ctor_dtor_name (struct d_info *di)
2201 if (di->last_name != NULL)
2203 if (di->last_name->type == DEMANGLE_COMPONENT_NAME)
2204 di->expansion += di->last_name->u.s_name.len;
2205 else if (di->last_name->type == DEMANGLE_COMPONENT_SUB_STD)
2206 di->expansion += di->last_name->u.s_string.len;
2208 switch (d_peek_char (di))
2212 enum gnu_v3_ctor_kinds kind;
2215 if (d_peek_next_char (di) == 'I')
2221 switch (d_peek_next_char (di))
2224 kind = gnu_v3_complete_object_ctor;
2227 kind = gnu_v3_base_object_ctor;
2230 kind = gnu_v3_complete_object_allocating_ctor;
2233 kind = gnu_v3_unified_ctor;
2236 kind = gnu_v3_object_ctor_group;
2245 cplus_demangle_type (di);
2247 return d_make_ctor (di, kind, di->last_name);
2252 enum gnu_v3_dtor_kinds kind;
2254 switch (d_peek_next_char (di))
2257 kind = gnu_v3_deleting_dtor;
2260 kind = gnu_v3_complete_object_dtor;
2263 kind = gnu_v3_base_object_dtor;
2265 /* digit '3' is not used */
2267 kind = gnu_v3_unified_dtor;
2270 kind = gnu_v3_object_dtor_group;
2276 return d_make_dtor (di, kind, di->last_name);
2284 /* True iff we're looking at an order-insensitive type-qualifier, including
2285 function-type-qualifiers. */
2288 next_is_type_qual (struct d_info *di)
2290 char peek = d_peek_char (di);
2291 if (peek == 'r' || peek == 'V' || peek == 'K')
2295 peek = d_peek_next_char (di);
2296 if (peek == 'x' || peek == 'o' || peek == 'O' || peek == 'w')
2302 /* <type> ::= <builtin-type>
2304 ::= <class-enum-type>
2306 ::= <pointer-to-member-type>
2307 ::= <template-param>
2308 ::= <template-template-param> <template-args>
2310 ::= <CV-qualifiers> <type>
2313 ::= O <type> (C++0x)
2316 ::= U <source-name> <type>
2318 <builtin-type> ::= various one letter codes
2322 CP_STATIC_IF_GLIBCPP_V3
2323 const struct demangle_builtin_type_info
2324 cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT] =
2326 /* a */ { NL ("signed char"), NL ("signed char"), D_PRINT_DEFAULT },
2327 /* b */ { NL ("bool"), NL ("boolean"), D_PRINT_BOOL },
2328 /* c */ { NL ("char"), NL ("byte"), D_PRINT_DEFAULT },
2329 /* d */ { NL ("double"), NL ("double"), D_PRINT_FLOAT },
2330 /* e */ { NL ("long double"), NL ("long double"), D_PRINT_FLOAT },
2331 /* f */ { NL ("float"), NL ("float"), D_PRINT_FLOAT },
2332 /* g */ { NL ("__float128"), NL ("__float128"), D_PRINT_FLOAT },
2333 /* h */ { NL ("unsigned char"), NL ("unsigned char"), D_PRINT_DEFAULT },
2334 /* i */ { NL ("int"), NL ("int"), D_PRINT_INT },
2335 /* j */ { NL ("unsigned int"), NL ("unsigned"), D_PRINT_UNSIGNED },
2336 /* k */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2337 /* l */ { NL ("long"), NL ("long"), D_PRINT_LONG },
2338 /* m */ { NL ("unsigned long"), NL ("unsigned long"), D_PRINT_UNSIGNED_LONG },
2339 /* n */ { NL ("__int128"), NL ("__int128"), D_PRINT_DEFAULT },
2340 /* o */ { NL ("unsigned __int128"), NL ("unsigned __int128"),
2342 /* p */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2343 /* q */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2344 /* r */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2345 /* s */ { NL ("short"), NL ("short"), D_PRINT_DEFAULT },
2346 /* t */ { NL ("unsigned short"), NL ("unsigned short"), D_PRINT_DEFAULT },
2347 /* u */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2348 /* v */ { NL ("void"), NL ("void"), D_PRINT_VOID },
2349 /* w */ { NL ("wchar_t"), NL ("char"), D_PRINT_DEFAULT },
2350 /* x */ { NL ("long long"), NL ("long"), D_PRINT_LONG_LONG },
2351 /* y */ { NL ("unsigned long long"), NL ("unsigned long long"),
2352 D_PRINT_UNSIGNED_LONG_LONG },
2353 /* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT },
2354 /* 26 */ { NL ("decimal32"), NL ("decimal32"), D_PRINT_DEFAULT },
2355 /* 27 */ { NL ("decimal64"), NL ("decimal64"), D_PRINT_DEFAULT },
2356 /* 28 */ { NL ("decimal128"), NL ("decimal128"), D_PRINT_DEFAULT },
2357 /* 29 */ { NL ("half"), NL ("half"), D_PRINT_FLOAT },
2358 /* 30 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT },
2359 /* 31 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT },
2360 /* 32 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"),
2364 CP_STATIC_IF_GLIBCPP_V3
2365 struct demangle_component *
2366 cplus_demangle_type (struct d_info *di)
2369 struct demangle_component *ret;
2372 /* The ABI specifies that when CV-qualifiers are used, the base type
2373 is substitutable, and the fully qualified type is substitutable,
2374 but the base type with a strict subset of the CV-qualifiers is
2375 not substitutable. The natural recursive implementation of the
2376 CV-qualifiers would cause subsets to be substitutable, so instead
2377 we pull them all off now.
2379 FIXME: The ABI says that order-insensitive vendor qualifiers
2380 should be handled in the same way, but we have no way to tell
2381 which vendor qualifiers are order-insensitive and which are
2382 order-sensitive. So we just assume that they are all
2383 order-sensitive. g++ 3.4 supports only one vendor qualifier,
2384 __vector, and it treats it as order-sensitive when mangling
2387 if (next_is_type_qual (di))
2389 struct demangle_component **pret;
2391 pret = d_cv_qualifiers (di, &ret, 0);
2394 if (d_peek_char (di) == 'F')
2396 /* cv-qualifiers before a function type apply to 'this',
2397 so avoid adding the unqualified function type to
2398 the substitution list. */
2399 *pret = d_function_type (di);
2402 *pret = cplus_demangle_type (di);
2405 if ((*pret)->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS
2406 || (*pret)->type == DEMANGLE_COMPONENT_REFERENCE_THIS)
2408 /* Move the ref-qualifier outside the cv-qualifiers so that
2409 they are printed in the right order. */
2410 struct demangle_component *fn = d_left (*pret);
2411 d_left (*pret) = ret;
2415 if (! d_add_substitution (di, ret))
2422 peek = d_peek_char (di);
2425 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
2426 case 'h': case 'i': case 'j': case 'l': case 'm': case 'n':
2427 case 'o': case 's': case 't':
2428 case 'v': case 'w': case 'x': case 'y': case 'z':
2429 ret = d_make_builtin_type (di,
2430 &cplus_demangle_builtin_types[peek - 'a']);
2431 di->expansion += ret->u.s_builtin.type->len;
2438 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE,
2439 d_source_name (di), NULL);
2443 ret = d_function_type (di);
2446 case '0': case '1': case '2': case '3': case '4':
2447 case '5': case '6': case '7': case '8': case '9':
2450 ret = d_class_enum_type (di);
2454 ret = d_array_type (di);
2458 ret = d_pointer_to_member_type (di);
2462 ret = d_template_param (di);
2463 if (d_peek_char (di) == 'I')
2465 /* This may be <template-template-param> <template-args>.
2466 If this is the type for a conversion operator, we can
2467 have a <template-template-param> here only by following
2468 a derivation like this:
2471 -> <template-prefix> <template-args>
2472 -> <prefix> <template-unqualified-name> <template-args>
2473 -> <unqualified-name> <template-unqualified-name> <template-args>
2474 -> <source-name> <template-unqualified-name> <template-args>
2475 -> <source-name> <operator-name> <template-args>
2476 -> <source-name> cv <type> <template-args>
2477 -> <source-name> cv <template-template-param> <template-args> <template-args>
2479 where the <template-args> is followed by another.
2480 Otherwise, we must have a derivation like this:
2483 -> <template-prefix> <template-args>
2484 -> <prefix> <template-unqualified-name> <template-args>
2485 -> <unqualified-name> <template-unqualified-name> <template-args>
2486 -> <source-name> <template-unqualified-name> <template-args>
2487 -> <source-name> <operator-name> <template-args>
2488 -> <source-name> cv <type> <template-args>
2489 -> <source-name> cv <template-param> <template-args>
2491 where we need to leave the <template-args> to be processed
2492 by d_prefix (following the <template-prefix>).
2494 The <template-template-param> part is a substitution
2496 if (! di->is_conversion)
2498 if (! d_add_substitution (di, ret))
2500 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2501 d_template_args (di));
2505 struct demangle_component *args;
2506 struct d_info_checkpoint checkpoint;
2508 d_checkpoint (di, &checkpoint);
2509 args = d_template_args (di);
2510 if (d_peek_char (di) == 'I')
2512 if (! d_add_substitution (di, ret))
2514 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2518 d_backtrack (di, &checkpoint);
2524 /* If this is a special substitution, then it is the start of
2525 <class-enum-type>. */
2529 peek_next = d_peek_next_char (di);
2530 if (IS_DIGIT (peek_next)
2532 || IS_UPPER (peek_next))
2534 ret = d_substitution (di, 0);
2535 /* The substituted name may have been a template name and
2536 may be followed by tepmlate args. */
2537 if (d_peek_char (di) == 'I')
2538 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2539 d_template_args (di));
2545 ret = d_class_enum_type (di);
2546 /* If the substitution was a complete type, then it is not
2547 a new substitution candidate. However, if the
2548 substitution was followed by template arguments, then
2549 the whole thing is a substitution candidate. */
2550 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_SUB_STD)
2558 ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE,
2559 cplus_demangle_type (di), NULL);
2564 ret = d_make_comp (di, DEMANGLE_COMPONENT_POINTER,
2565 cplus_demangle_type (di), NULL);
2570 ret = d_make_comp (di, DEMANGLE_COMPONENT_REFERENCE,
2571 cplus_demangle_type (di), NULL);
2576 ret = d_make_comp (di, DEMANGLE_COMPONENT_COMPLEX,
2577 cplus_demangle_type (di), NULL);
2582 ret = d_make_comp (di, DEMANGLE_COMPONENT_IMAGINARY,
2583 cplus_demangle_type (di), NULL);
2588 ret = d_source_name (di);
2589 if (d_peek_char (di) == 'I')
2590 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2591 d_template_args (di));
2592 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
2593 cplus_demangle_type (di), ret);
2599 peek = d_next_char (di);
2604 /* decltype (expression) */
2605 ret = d_make_comp (di, DEMANGLE_COMPONENT_DECLTYPE,
2606 d_expression (di), NULL);
2607 if (ret && d_next_char (di) != 'E')
2613 /* Pack expansion. */
2614 ret = d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
2615 cplus_demangle_type (di), NULL);
2621 ret = d_make_name (di, "auto", 4);
2624 /* decltype(auto) */
2625 ret = d_make_name (di, "decltype(auto)", 14);
2629 /* 32-bit decimal floating point */
2630 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);
2631 di->expansion += ret->u.s_builtin.type->len;
2635 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[27]);
2636 di->expansion += ret->u.s_builtin.type->len;
2640 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[28]);
2641 di->expansion += ret->u.s_builtin.type->len;
2644 /* 16-bit half-precision FP */
2645 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]);
2646 di->expansion += ret->u.s_builtin.type->len;
2650 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
2651 di->expansion += ret->u.s_builtin.type->len;
2655 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
2656 di->expansion += ret->u.s_builtin.type->len;
2660 /* Fixed point types. DF<int bits><length><fract bits><sat> */
2661 ret = d_make_empty (di);
2662 ret->type = DEMANGLE_COMPONENT_FIXED_TYPE;
2663 if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di))))
2664 /* For demangling we don't care about the bits. */
2666 ret->u.s_fixed.length = cplus_demangle_type (di);
2667 if (ret->u.s_fixed.length == NULL)
2670 peek = d_next_char (di);
2671 ret->u.s_fixed.sat = (peek == 's');
2675 ret = d_vector_type (di);
2680 /* decltype(nullptr) */
2681 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[32]);
2682 di->expansion += ret->u.s_builtin.type->len;
2696 if (! d_add_substitution (di, ret))
2703 /* <CV-qualifiers> ::= [r] [V] [K] [Dx] */
2705 static struct demangle_component **
2706 d_cv_qualifiers (struct d_info *di,
2707 struct demangle_component **pret, int member_fn)
2709 struct demangle_component **pstart;
2713 peek = d_peek_char (di);
2714 while (next_is_type_qual (di))
2716 enum demangle_component_type t;
2717 struct demangle_component *right = NULL;
2723 ? DEMANGLE_COMPONENT_RESTRICT_THIS
2724 : DEMANGLE_COMPONENT_RESTRICT);
2725 di->expansion += sizeof "restrict";
2727 else if (peek == 'V')
2730 ? DEMANGLE_COMPONENT_VOLATILE_THIS
2731 : DEMANGLE_COMPONENT_VOLATILE);
2732 di->expansion += sizeof "volatile";
2734 else if (peek == 'K')
2737 ? DEMANGLE_COMPONENT_CONST_THIS
2738 : DEMANGLE_COMPONENT_CONST);
2739 di->expansion += sizeof "const";
2743 peek = d_next_char (di);
2746 t = DEMANGLE_COMPONENT_TRANSACTION_SAFE;
2747 di->expansion += sizeof "transaction_safe";
2749 else if (peek == 'o'
2752 t = DEMANGLE_COMPONENT_NOEXCEPT;
2753 di->expansion += sizeof "noexcept";
2756 right = d_expression (di);
2759 if (! d_check_char (di, 'E'))
2763 else if (peek == 'w')
2765 t = DEMANGLE_COMPONENT_THROW_SPEC;
2766 di->expansion += sizeof "throw";
2767 right = d_parmlist (di);
2770 if (! d_check_char (di, 'E'))
2777 *pret = d_make_comp (di, t, NULL, right);
2780 pret = &d_left (*pret);
2782 peek = d_peek_char (di);
2785 if (!member_fn && peek == 'F')
2787 while (pstart != pret)
2789 switch ((*pstart)->type)
2791 case DEMANGLE_COMPONENT_RESTRICT:
2792 (*pstart)->type = DEMANGLE_COMPONENT_RESTRICT_THIS;
2794 case DEMANGLE_COMPONENT_VOLATILE:
2795 (*pstart)->type = DEMANGLE_COMPONENT_VOLATILE_THIS;
2797 case DEMANGLE_COMPONENT_CONST:
2798 (*pstart)->type = DEMANGLE_COMPONENT_CONST_THIS;
2803 pstart = &d_left (*pstart);
2810 /* <ref-qualifier> ::= R
2813 static struct demangle_component *
2814 d_ref_qualifier (struct d_info *di, struct demangle_component *sub)
2816 struct demangle_component *ret = sub;
2819 peek = d_peek_char (di);
2820 if (peek == 'R' || peek == 'O')
2822 enum demangle_component_type t;
2825 t = DEMANGLE_COMPONENT_REFERENCE_THIS;
2826 di->expansion += sizeof "&";
2830 t = DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS;
2831 di->expansion += sizeof "&&";
2835 ret = d_make_comp (di, t, ret, NULL);
2841 /* <function-type> ::= F [Y] <bare-function-type> [<ref-qualifier>] [T] E */
2843 static struct demangle_component *
2844 d_function_type (struct d_info *di)
2846 struct demangle_component *ret;
2848 if (! d_check_char (di, 'F'))
2850 if (d_peek_char (di) == 'Y')
2852 /* Function has C linkage. We don't print this information.
2853 FIXME: We should print it in verbose mode. */
2856 ret = d_bare_function_type (di, 1);
2857 ret = d_ref_qualifier (di, ret);
2859 if (! d_check_char (di, 'E'))
2866 static struct demangle_component *
2867 d_parmlist (struct d_info *di)
2869 struct demangle_component *tl;
2870 struct demangle_component **ptl;
2876 struct demangle_component *type;
2878 char peek = d_peek_char (di);
2879 if (peek == '\0' || peek == 'E' || peek == '.')
2881 if ((peek == 'R' || peek == 'O')
2882 && d_peek_next_char (di) == 'E')
2883 /* Function ref-qualifier, not a ref prefix for a parameter type. */
2885 type = cplus_demangle_type (di);
2888 *ptl = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, type, NULL);
2891 ptl = &d_right (*ptl);
2894 /* There should be at least one parameter type besides the optional
2895 return type. A function which takes no arguments will have a
2896 single parameter type void. */
2900 /* If we have a single parameter type void, omit it. */
2901 if (d_right (tl) == NULL
2902 && d_left (tl)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2903 && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID)
2905 di->expansion -= d_left (tl)->u.s_builtin.type->len;
2912 /* <bare-function-type> ::= [J]<type>+ */
2914 static struct demangle_component *
2915 d_bare_function_type (struct d_info *di, int has_return_type)
2917 struct demangle_component *return_type;
2918 struct demangle_component *tl;
2921 /* Detect special qualifier indicating that the first argument
2922 is the return type. */
2923 peek = d_peek_char (di);
2927 has_return_type = 1;
2930 if (has_return_type)
2932 return_type = cplus_demangle_type (di);
2933 if (return_type == NULL)
2939 tl = d_parmlist (di);
2943 return d_make_comp (di, DEMANGLE_COMPONENT_FUNCTION_TYPE,
2947 /* <class-enum-type> ::= <name> */
2949 static struct demangle_component *
2950 d_class_enum_type (struct d_info *di)
2955 /* <array-type> ::= A <(positive dimension) number> _ <(element) type>
2956 ::= A [<(dimension) expression>] _ <(element) type>
2959 static struct demangle_component *
2960 d_array_type (struct d_info *di)
2963 struct demangle_component *dim;
2965 if (! d_check_char (di, 'A'))
2968 peek = d_peek_char (di);
2971 else if (IS_DIGIT (peek))
2979 peek = d_peek_char (di);
2981 while (IS_DIGIT (peek));
2982 dim = d_make_name (di, s, d_str (di) - s);
2988 dim = d_expression (di);
2993 if (! d_check_char (di, '_'))
2996 return d_make_comp (di, DEMANGLE_COMPONENT_ARRAY_TYPE, dim,
2997 cplus_demangle_type (di));
3000 /* <vector-type> ::= Dv <number> _ <type>
3001 ::= Dv _ <expression> _ <type> */
3003 static struct demangle_component *
3004 d_vector_type (struct d_info *di)
3007 struct demangle_component *dim;
3009 peek = d_peek_char (di);
3013 dim = d_expression (di);
3016 dim = d_number_component (di);
3021 if (! d_check_char (di, '_'))
3024 return d_make_comp (di, DEMANGLE_COMPONENT_VECTOR_TYPE, dim,
3025 cplus_demangle_type (di));
3028 /* <pointer-to-member-type> ::= M <(class) type> <(member) type> */
3030 static struct demangle_component *
3031 d_pointer_to_member_type (struct d_info *di)
3033 struct demangle_component *cl;
3034 struct demangle_component *mem;
3036 if (! d_check_char (di, 'M'))
3039 cl = cplus_demangle_type (di);
3043 /* The ABI says, "The type of a non-static member function is considered
3044 to be different, for the purposes of substitution, from the type of a
3045 namespace-scope or static member function whose type appears
3046 similar. The types of two non-static member functions are considered
3047 to be different, for the purposes of substitution, if the functions
3048 are members of different classes. In other words, for the purposes of
3049 substitution, the class of which the function is a member is
3050 considered part of the type of function."
3052 For a pointer to member function, this call to cplus_demangle_type
3053 will end up adding a (possibly qualified) non-member function type to
3054 the substitution table, which is not correct; however, the member
3055 function type will never be used in a substitution, so putting the
3056 wrong type in the substitution table is harmless. */
3058 mem = cplus_demangle_type (di);
3062 return d_make_comp (di, DEMANGLE_COMPONENT_PTRMEM_TYPE, cl, mem);
3065 /* <non-negative number> _ */
3068 d_compact_number (struct d_info *di)
3071 if (d_peek_char (di) == '_')
3073 else if (d_peek_char (di) == 'n')
3076 num = d_number (di) + 1;
3078 if (num < 0 || ! d_check_char (di, '_'))
3083 /* <template-param> ::= T_
3084 ::= T <(parameter-2 non-negative) number> _
3087 static struct demangle_component *
3088 d_template_param (struct d_info *di)
3092 if (! d_check_char (di, 'T'))
3095 param = d_compact_number (di);
3099 return d_make_template_param (di, param);
3102 /* <template-args> ::= I <template-arg>+ E */
3104 static struct demangle_component *
3105 d_template_args (struct d_info *di)
3107 if (d_peek_char (di) != 'I'
3108 && d_peek_char (di) != 'J')
3112 return d_template_args_1 (di);
3115 /* <template-arg>* E */
3117 static struct demangle_component *
3118 d_template_args_1 (struct d_info *di)
3120 struct demangle_component *hold_last_name;
3121 struct demangle_component *al;
3122 struct demangle_component **pal;
3124 /* Preserve the last name we saw--don't let the template arguments
3125 clobber it, as that would give us the wrong name for a subsequent
3126 constructor or destructor. */
3127 hold_last_name = di->last_name;
3129 if (d_peek_char (di) == 'E')
3131 /* An argument pack can be empty. */
3133 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL);
3140 struct demangle_component *a;
3142 a = d_template_arg (di);
3146 *pal = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, a, NULL);
3149 pal = &d_right (*pal);
3151 if (d_peek_char (di) == 'E')
3158 di->last_name = hold_last_name;
3163 /* <template-arg> ::= <type>
3164 ::= X <expression> E
3168 static struct demangle_component *
3169 d_template_arg (struct d_info *di)
3171 struct demangle_component *ret;
3173 switch (d_peek_char (di))
3177 ret = d_expression (di);
3178 if (! d_check_char (di, 'E'))
3183 return d_expr_primary (di);
3187 /* An argument pack. */
3188 return d_template_args (di);
3191 return cplus_demangle_type (di);
3195 /* Parse a sequence of expressions until we hit the terminator
3198 static struct demangle_component *
3199 d_exprlist (struct d_info *di, char terminator)
3201 struct demangle_component *list = NULL;
3202 struct demangle_component **p = &list;
3204 if (d_peek_char (di) == terminator)
3207 return d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, NULL, NULL);
3212 struct demangle_component *arg = d_expression (di);
3216 *p = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, arg, NULL);
3221 if (d_peek_char (di) == terminator)
3231 /* Returns nonzero iff OP is an operator for a C++ cast: const_cast,
3232 dynamic_cast, static_cast or reinterpret_cast. */
3235 op_is_new_cast (struct demangle_component *op)
3237 const char *code = op->u.s_operator.op->code;
3238 return (code[1] == 'c'
3239 && (code[0] == 's' || code[0] == 'd'
3240 || code[0] == 'c' || code[0] == 'r'));
3243 /* <expression> ::= <(unary) operator-name> <expression>
3244 ::= <(binary) operator-name> <expression> <expression>
3245 ::= <(trinary) operator-name> <expression> <expression> <expression>
3246 ::= cl <expression>+ E
3248 ::= <template-param>
3249 ::= sr <type> <unqualified-name>
3250 ::= sr <type> <unqualified-name> <template-args>
3254 static inline struct demangle_component *
3255 d_expression_1 (struct d_info *di)
3259 peek = d_peek_char (di);
3261 return d_expr_primary (di);
3262 else if (peek == 'T')
3263 return d_template_param (di);
3264 else if (peek == 's' && d_peek_next_char (di) == 'r')
3266 struct demangle_component *type;
3267 struct demangle_component *name;
3270 type = cplus_demangle_type (di);
3271 name = d_unqualified_name (di);
3272 if (d_peek_char (di) != 'I')
3273 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type, name);
3275 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type,
3276 d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
3277 d_template_args (di)));
3279 else if (peek == 's' && d_peek_next_char (di) == 'p')
3282 return d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
3283 d_expression_1 (di), NULL);
3285 else if (peek == 'f' && d_peek_next_char (di) == 'p')
3287 /* Function parameter used in a late-specified return type. */
3290 if (d_peek_char (di) == 'T')
3292 /* 'this' parameter. */
3298 index = d_compact_number (di);
3299 if (index == INT_MAX || index == -1)
3303 return d_make_function_param (di, index);
3305 else if (IS_DIGIT (peek)
3306 || (peek == 'o' && d_peek_next_char (di) == 'n'))
3308 /* We can get an unqualified name as an expression in the case of
3309 a dependent function call, i.e. decltype(f(t)). */
3310 struct demangle_component *name;
3313 /* operator-function-id, i.e. operator+(t). */
3316 name = d_unqualified_name (di);
3319 if (d_peek_char (di) == 'I')
3320 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
3321 d_template_args (di));
3325 else if ((peek == 'i' || peek == 't')
3326 && d_peek_next_char (di) == 'l')
3328 /* Brace-enclosed initializer list, untyped or typed. */
3329 struct demangle_component *type = NULL;
3331 type = cplus_demangle_type (di);
3332 if (!d_peek_next_char (di))
3335 return d_make_comp (di, DEMANGLE_COMPONENT_INITIALIZER_LIST,
3336 type, d_exprlist (di, 'E'));
3340 struct demangle_component *op;
3341 const char *code = NULL;
3344 op = d_operator_name (di);
3348 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
3350 code = op->u.s_operator.op->code;
3351 di->expansion += op->u.s_operator.op->len - 2;
3352 if (strcmp (code, "st") == 0)
3353 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
3354 cplus_demangle_type (di));
3361 case DEMANGLE_COMPONENT_OPERATOR:
3362 args = op->u.s_operator.op->args;
3364 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
3365 args = op->u.s_extended_operator.args;
3367 case DEMANGLE_COMPONENT_CAST:
3375 return d_make_comp (di, DEMANGLE_COMPONENT_NULLARY, op, NULL);
3379 struct demangle_component *operand;
3382 if (code && (code[0] == 'p' || code[0] == 'm')
3383 && code[1] == code[0])
3384 /* pp_ and mm_ are the prefix variants. */
3385 suffix = !d_check_char (di, '_');
3387 if (op->type == DEMANGLE_COMPONENT_CAST
3388 && d_check_char (di, '_'))
3389 operand = d_exprlist (di, 'E');
3390 else if (code && !strcmp (code, "sP"))
3391 operand = d_template_args_1 (di);
3393 operand = d_expression_1 (di);
3396 /* Indicate the suffix variant for d_print_comp. */
3397 operand = d_make_comp (di, DEMANGLE_COMPONENT_BINARY_ARGS,
3400 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op, operand);
3404 struct demangle_component *left;
3405 struct demangle_component *right;
3409 if (op_is_new_cast (op))
3410 left = cplus_demangle_type (di);
3411 else if (code[0] == 'f')
3412 /* fold-expression. */
3413 left = d_operator_name (di);
3415 left = d_expression_1 (di);
3416 if (!strcmp (code, "cl"))
3417 right = d_exprlist (di, 'E');
3418 else if (!strcmp (code, "dt") || !strcmp (code, "pt"))
3420 right = d_unqualified_name (di);
3421 if (d_peek_char (di) == 'I')
3422 right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE,
3423 right, d_template_args (di));
3426 right = d_expression_1 (di);
3428 return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op,
3430 DEMANGLE_COMPONENT_BINARY_ARGS,
3435 struct demangle_component *first;
3436 struct demangle_component *second;
3437 struct demangle_component *third;
3441 else if (!strcmp (code, "qu"))
3443 /* ?: expression. */
3444 first = d_expression_1 (di);
3445 second = d_expression_1 (di);
3446 third = d_expression_1 (di);
3450 else if (code[0] == 'f')
3452 /* fold-expression. */
3453 first = d_operator_name (di);
3454 second = d_expression_1 (di);
3455 third = d_expression_1 (di);
3459 else if (code[0] == 'n')
3461 /* new-expression. */
3462 if (code[1] != 'w' && code[1] != 'a')
3464 first = d_exprlist (di, '_');
3465 second = cplus_demangle_type (di);
3466 if (d_peek_char (di) == 'E')
3471 else if (d_peek_char (di) == 'p'
3472 && d_peek_next_char (di) == 'i')
3474 /* Parenthesized initializer. */
3476 third = d_exprlist (di, 'E');
3478 else if (d_peek_char (di) == 'i'
3479 && d_peek_next_char (di) == 'l')
3480 /* initializer-list. */
3481 third = d_expression_1 (di);
3487 return d_make_comp (di, DEMANGLE_COMPONENT_TRINARY, op,
3489 DEMANGLE_COMPONENT_TRINARY_ARG1,
3492 DEMANGLE_COMPONENT_TRINARY_ARG2,
3501 static struct demangle_component *
3502 d_expression (struct d_info *di)
3504 struct demangle_component *ret;
3505 int was_expression = di->is_expression;
3507 di->is_expression = 1;
3508 ret = d_expression_1 (di);
3509 di->is_expression = was_expression;
3513 /* <expr-primary> ::= L <type> <(value) number> E
3514 ::= L <type> <(value) float> E
3515 ::= L <mangled-name> E
3518 static struct demangle_component *
3519 d_expr_primary (struct d_info *di)
3521 struct demangle_component *ret;
3523 if (! d_check_char (di, 'L'))
3525 if (d_peek_char (di) == '_'
3526 /* Workaround for G++ bug; see comment in write_template_arg. */
3527 || d_peek_char (di) == 'Z')
3528 ret = cplus_demangle_mangled_name (di, 0);
3531 struct demangle_component *type;
3532 enum demangle_component_type t;
3535 type = cplus_demangle_type (di);
3539 /* If we have a type we know how to print, we aren't going to
3540 print the type name itself. */
3541 if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
3542 && type->u.s_builtin.type->print != D_PRINT_DEFAULT)
3543 di->expansion -= type->u.s_builtin.type->len;
3545 /* Rather than try to interpret the literal value, we just
3546 collect it as a string. Note that it's possible to have a
3547 floating point literal here. The ABI specifies that the
3548 format of such literals is machine independent. That's fine,
3549 but what's not fine is that versions of g++ up to 3.2 with
3550 -fabi-version=1 used upper case letters in the hex constant,
3551 and dumped out gcc's internal representation. That makes it
3552 hard to tell where the constant ends, and hard to dump the
3553 constant in any readable form anyhow. We don't attempt to
3554 handle these cases. */
3556 t = DEMANGLE_COMPONENT_LITERAL;
3557 if (d_peek_char (di) == 'n')
3559 t = DEMANGLE_COMPONENT_LITERAL_NEG;
3563 while (d_peek_char (di) != 'E')
3565 if (d_peek_char (di) == '\0')
3569 ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s));
3571 if (! d_check_char (di, 'E'))
3576 /* <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>]
3577 ::= Z <(function) encoding> E s [<discriminator>]
3578 ::= Z <(function) encoding> E d [<parameter> number>] _ <entity name>
3581 static struct demangle_component *
3582 d_local_name (struct d_info *di)
3584 struct demangle_component *function;
3585 struct demangle_component *name;
3587 if (! d_check_char (di, 'Z'))
3590 function = d_encoding (di, 0);
3594 if (! d_check_char (di, 'E'))
3597 if (d_peek_char (di) == 's')
3600 if (! d_discriminator (di))
3602 name = d_make_name (di, "string literal", sizeof "string literal" - 1);
3608 if (d_peek_char (di) == 'd')
3610 /* Default argument scope: d <number> _. */
3612 num = d_compact_number (di);
3620 /* Lambdas and unnamed types have internal discriminators
3621 and are not functions. */
3622 && name->type != DEMANGLE_COMPONENT_LAMBDA
3623 && name->type != DEMANGLE_COMPONENT_UNNAMED_TYPE)
3625 /* Read and ignore an optional discriminator. */
3626 if (! d_discriminator (di))
3631 name = d_make_default_arg (di, num, name);
3634 /* Elide the return type of the containing function so as to not
3635 confuse the user thinking it is the return type of whatever local
3636 function we might be containing. */
3637 if (function->type == DEMANGLE_COMPONENT_TYPED_NAME
3638 && d_right (function)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
3639 d_left (d_right (function)) = NULL;
3641 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
3644 /* <discriminator> ::= _ <number> # when number < 10
3645 ::= __ <number> _ # when number >= 10
3647 <discriminator> ::= _ <number> # when number >=10
3648 is also accepted to support gcc versions that wrongly mangled that way.
3650 We demangle the discriminator, but we don't print it out. FIXME:
3651 We should print it out in verbose mode. */
3654 d_discriminator (struct d_info *di)
3656 int discrim, num_underscores = 1;
3658 if (d_peek_char (di) != '_')
3661 if (d_peek_char (di) == '_')
3667 discrim = d_number (di);
3670 if (num_underscores > 1 && discrim >= 10)
3672 if (d_peek_char (di) == '_')
3681 /* <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ */
3683 static struct demangle_component *
3684 d_lambda (struct d_info *di)
3686 struct demangle_component *tl;
3687 struct demangle_component *ret;
3690 if (! d_check_char (di, 'U'))
3692 if (! d_check_char (di, 'l'))
3695 tl = d_parmlist (di);
3699 if (! d_check_char (di, 'E'))
3702 num = d_compact_number (di);
3706 ret = d_make_empty (di);
3709 ret->type = DEMANGLE_COMPONENT_LAMBDA;
3710 ret->u.s_unary_num.sub = tl;
3711 ret->u.s_unary_num.num = num;
3714 if (! d_add_substitution (di, ret))
3720 /* <unnamed-type-name> ::= Ut [ <nonnegative number> ] _ */
3722 static struct demangle_component *
3723 d_unnamed_type (struct d_info *di)
3725 struct demangle_component *ret;
3728 if (! d_check_char (di, 'U'))
3730 if (! d_check_char (di, 't'))
3733 num = d_compact_number (di);
3737 ret = d_make_empty (di);
3740 ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE;
3741 ret->u.s_number.number = num;
3744 if (! d_add_substitution (di, ret))
3750 /* <clone-suffix> ::= [ . <clone-type-identifier> ] [ . <nonnegative number> ]*
3753 static struct demangle_component *
3754 d_clone_suffix (struct d_info *di, struct demangle_component *encoding)
3756 const char *suffix = d_str (di);
3757 const char *pend = suffix;
3758 struct demangle_component *n;
3760 if (*pend == '.' && (IS_LOWER (pend[1]) || pend[1] == '_'))
3763 while (IS_LOWER (*pend) || *pend == '_')
3766 while (*pend == '.' && IS_DIGIT (pend[1]))
3769 while (IS_DIGIT (*pend))
3772 d_advance (di, pend - suffix);
3773 n = d_make_name (di, suffix, pend - suffix);
3774 return d_make_comp (di, DEMANGLE_COMPONENT_CLONE, encoding, n);
3777 /* Add a new substitution. */
3780 d_add_substitution (struct d_info *di, struct demangle_component *dc)
3784 if (di->next_sub >= di->num_subs)
3786 di->subs[di->next_sub] = dc;
3791 /* <substitution> ::= S <seq-id> _
3801 If PREFIX is non-zero, then this type is being used as a prefix in
3802 a qualified name. In this case, for the standard substitutions, we
3803 need to check whether we are being used as a prefix for a
3804 constructor or destructor, and return a full template name.
3805 Otherwise we will get something like std::iostream::~iostream()
3806 which does not correspond particularly well to any function which
3807 actually appears in the source.
3810 static const struct d_standard_sub_info standard_subs[] =
3815 { 'a', NL ("std::allocator"),
3816 NL ("std::allocator"),
3818 { 'b', NL ("std::basic_string"),
3819 NL ("std::basic_string"),
3820 NL ("basic_string") },
3821 { 's', NL ("std::string"),
3822 NL ("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
3823 NL ("basic_string") },
3824 { 'i', NL ("std::istream"),
3825 NL ("std::basic_istream<char, std::char_traits<char> >"),
3826 NL ("basic_istream") },
3827 { 'o', NL ("std::ostream"),
3828 NL ("std::basic_ostream<char, std::char_traits<char> >"),
3829 NL ("basic_ostream") },
3830 { 'd', NL ("std::iostream"),
3831 NL ("std::basic_iostream<char, std::char_traits<char> >"),
3832 NL ("basic_iostream") }
3835 static struct demangle_component *
3836 d_substitution (struct d_info *di, int prefix)
3840 if (! d_check_char (di, 'S'))
3843 c = d_next_char (di);
3844 if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
3853 unsigned int new_id;
3856 new_id = id * 36 + c - '0';
3857 else if (IS_UPPER (c))
3858 new_id = id * 36 + c - 'A' + 10;
3864 c = d_next_char (di);
3871 if (id >= (unsigned int) di->next_sub)
3874 return di->subs[id];
3879 const struct d_standard_sub_info *p;
3880 const struct d_standard_sub_info *pend;
3882 verbose = (di->options & DMGL_VERBOSE) != 0;
3883 if (! verbose && prefix)
3887 peek = d_peek_char (di);
3888 if (peek == 'C' || peek == 'D')
3892 pend = (&standard_subs[0]
3893 + sizeof standard_subs / sizeof standard_subs[0]);
3894 for (p = &standard_subs[0]; p < pend; ++p)
3900 struct demangle_component *dc;
3902 if (p->set_last_name != NULL)
3903 di->last_name = d_make_sub (di, p->set_last_name,
3904 p->set_last_name_len);
3907 s = p->full_expansion;
3912 s = p->simple_expansion;
3913 len = p->simple_len;
3915 di->expansion += len;
3916 dc = d_make_sub (di, s, len);
3917 if (d_peek_char (di) == 'B')
3919 /* If there are ABI tags on the abbreviation, it becomes
3920 a substitution candidate. */
3921 dc = d_abi_tags (di, dc);
3922 if (! d_add_substitution (di, dc))
3934 d_checkpoint (struct d_info *di, struct d_info_checkpoint *checkpoint)
3936 checkpoint->n = di->n;
3937 checkpoint->next_comp = di->next_comp;
3938 checkpoint->next_sub = di->next_sub;
3939 checkpoint->expansion = di->expansion;
3943 d_backtrack (struct d_info *di, struct d_info_checkpoint *checkpoint)
3945 di->n = checkpoint->n;
3946 di->next_comp = checkpoint->next_comp;
3947 di->next_sub = checkpoint->next_sub;
3948 di->expansion = checkpoint->expansion;
3951 /* Initialize a growable string. */
3954 d_growable_string_init (struct d_growable_string *dgs, size_t estimate)
3959 dgs->allocation_failure = 0;
3962 d_growable_string_resize (dgs, estimate);
3965 /* Grow a growable string to a given size. */
3968 d_growable_string_resize (struct d_growable_string *dgs, size_t need)
3973 if (dgs->allocation_failure)
3976 /* Start allocation at two bytes to avoid any possibility of confusion
3977 with the special value of 1 used as a return in *palc to indicate
3978 allocation failures. */
3979 newalc = dgs->alc > 0 ? dgs->alc : 2;
3980 while (newalc < need)
3983 newbuf = (char *) realloc (dgs->buf, newalc);
3990 dgs->allocation_failure = 1;
3997 /* Append a buffer to a growable string. */
4000 d_growable_string_append_buffer (struct d_growable_string *dgs,
4001 const char *s, size_t l)
4005 need = dgs->len + l + 1;
4006 if (need > dgs->alc)
4007 d_growable_string_resize (dgs, need);
4009 if (dgs->allocation_failure)
4012 memcpy (dgs->buf + dgs->len, s, l);
4013 dgs->buf[dgs->len + l] = '\0';
4017 /* Bridge growable strings to the callback mechanism. */
4020 d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
4022 struct d_growable_string *dgs = (struct d_growable_string*) opaque;
4024 d_growable_string_append_buffer (dgs, s, l);
4027 /* Walk the tree, counting the number of templates encountered, and
4028 the number of times a scope might be saved. These counts will be
4029 used to allocate data structures for d_print_comp, so the logic
4030 here must mirror the logic d_print_comp will use. It is not
4031 important that the resulting numbers are exact, so long as they
4032 are larger than the actual numbers encountered. */
4035 d_count_templates_scopes (int *num_templates, int *num_scopes,
4036 const struct demangle_component *dc)
4043 case DEMANGLE_COMPONENT_NAME:
4044 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
4045 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
4046 case DEMANGLE_COMPONENT_SUB_STD:
4047 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
4048 case DEMANGLE_COMPONENT_OPERATOR:
4049 case DEMANGLE_COMPONENT_CHARACTER:
4050 case DEMANGLE_COMPONENT_NUMBER:
4051 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
4054 case DEMANGLE_COMPONENT_TEMPLATE:
4056 goto recurse_left_right;
4058 case DEMANGLE_COMPONENT_REFERENCE:
4059 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
4060 if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
4062 goto recurse_left_right;
4064 case DEMANGLE_COMPONENT_QUAL_NAME:
4065 case DEMANGLE_COMPONENT_LOCAL_NAME:
4066 case DEMANGLE_COMPONENT_TYPED_NAME:
4067 case DEMANGLE_COMPONENT_VTABLE:
4068 case DEMANGLE_COMPONENT_VTT:
4069 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
4070 case DEMANGLE_COMPONENT_TYPEINFO:
4071 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
4072 case DEMANGLE_COMPONENT_TYPEINFO_FN:
4073 case DEMANGLE_COMPONENT_THUNK:
4074 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
4075 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
4076 case DEMANGLE_COMPONENT_JAVA_CLASS:
4077 case DEMANGLE_COMPONENT_GUARD:
4078 case DEMANGLE_COMPONENT_TLS_INIT:
4079 case DEMANGLE_COMPONENT_TLS_WRAPPER:
4080 case DEMANGLE_COMPONENT_REFTEMP:
4081 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
4082 case DEMANGLE_COMPONENT_RESTRICT:
4083 case DEMANGLE_COMPONENT_VOLATILE:
4084 case DEMANGLE_COMPONENT_CONST:
4085 case DEMANGLE_COMPONENT_RESTRICT_THIS:
4086 case DEMANGLE_COMPONENT_VOLATILE_THIS:
4087 case DEMANGLE_COMPONENT_CONST_THIS:
4088 case DEMANGLE_COMPONENT_REFERENCE_THIS:
4089 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
4090 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
4091 case DEMANGLE_COMPONENT_NOEXCEPT:
4092 case DEMANGLE_COMPONENT_THROW_SPEC:
4093 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
4094 case DEMANGLE_COMPONENT_POINTER:
4095 case DEMANGLE_COMPONENT_COMPLEX:
4096 case DEMANGLE_COMPONENT_IMAGINARY:
4097 case DEMANGLE_COMPONENT_VENDOR_TYPE:
4098 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
4099 case DEMANGLE_COMPONENT_ARRAY_TYPE:
4100 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
4101 case DEMANGLE_COMPONENT_VECTOR_TYPE:
4102 case DEMANGLE_COMPONENT_ARGLIST:
4103 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
4104 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
4105 case DEMANGLE_COMPONENT_CAST:
4106 case DEMANGLE_COMPONENT_CONVERSION:
4107 case DEMANGLE_COMPONENT_NULLARY:
4108 case DEMANGLE_COMPONENT_UNARY:
4109 case DEMANGLE_COMPONENT_BINARY:
4110 case DEMANGLE_COMPONENT_BINARY_ARGS:
4111 case DEMANGLE_COMPONENT_TRINARY:
4112 case DEMANGLE_COMPONENT_TRINARY_ARG1:
4113 case DEMANGLE_COMPONENT_TRINARY_ARG2:
4114 case DEMANGLE_COMPONENT_LITERAL:
4115 case DEMANGLE_COMPONENT_LITERAL_NEG:
4116 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
4117 case DEMANGLE_COMPONENT_COMPOUND_NAME:
4118 case DEMANGLE_COMPONENT_DECLTYPE:
4119 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
4120 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
4121 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4122 case DEMANGLE_COMPONENT_TAGGED_NAME:
4123 case DEMANGLE_COMPONENT_CLONE:
4125 d_count_templates_scopes (num_templates, num_scopes,
4127 d_count_templates_scopes (num_templates, num_scopes,
4131 case DEMANGLE_COMPONENT_CTOR:
4132 d_count_templates_scopes (num_templates, num_scopes,
4136 case DEMANGLE_COMPONENT_DTOR:
4137 d_count_templates_scopes (num_templates, num_scopes,
4141 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4142 d_count_templates_scopes (num_templates, num_scopes,
4143 dc->u.s_extended_operator.name);
4146 case DEMANGLE_COMPONENT_FIXED_TYPE:
4147 d_count_templates_scopes (num_templates, num_scopes,
4148 dc->u.s_fixed.length);
4151 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
4152 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
4153 d_count_templates_scopes (num_templates, num_scopes,
4157 case DEMANGLE_COMPONENT_LAMBDA:
4158 case DEMANGLE_COMPONENT_DEFAULT_ARG:
4159 d_count_templates_scopes (num_templates, num_scopes,
4160 dc->u.s_unary_num.sub);
4165 /* Initialize a print information structure. */
4168 d_print_init (struct d_print_info *dpi, demangle_callbackref callback,
4169 void *opaque, const struct demangle_component *dc)
4172 dpi->last_char = '\0';
4173 dpi->templates = NULL;
4174 dpi->modifiers = NULL;
4175 dpi->pack_index = 0;
4176 dpi->flush_count = 0;
4178 dpi->callback = callback;
4179 dpi->opaque = opaque;
4181 dpi->demangle_failure = 0;
4183 dpi->is_lambda_arg = 0;
4185 dpi->component_stack = NULL;
4187 dpi->saved_scopes = NULL;
4188 dpi->next_saved_scope = 0;
4189 dpi->num_saved_scopes = 0;
4191 dpi->copy_templates = NULL;
4192 dpi->next_copy_template = 0;
4193 dpi->num_copy_templates = 0;
4195 d_count_templates_scopes (&dpi->num_copy_templates,
4196 &dpi->num_saved_scopes, dc);
4197 dpi->num_copy_templates *= dpi->num_saved_scopes;
4199 dpi->current_template = NULL;
4202 /* Indicate that an error occurred during printing, and test for error. */
4205 d_print_error (struct d_print_info *dpi)
4207 dpi->demangle_failure = 1;
4211 d_print_saw_error (struct d_print_info *dpi)
4213 return dpi->demangle_failure != 0;
4216 /* Flush buffered characters to the callback. */
4219 d_print_flush (struct d_print_info *dpi)
4221 dpi->buf[dpi->len] = '\0';
4222 dpi->callback (dpi->buf, dpi->len, dpi->opaque);
4227 /* Append characters and buffers for printing. */
4230 d_append_char (struct d_print_info *dpi, char c)
4232 if (dpi->len == sizeof (dpi->buf) - 1)
4233 d_print_flush (dpi);
4235 dpi->buf[dpi->len++] = c;
4240 d_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
4244 for (i = 0; i < l; i++)
4245 d_append_char (dpi, s[i]);
4249 d_append_string (struct d_print_info *dpi, const char *s)
4251 d_append_buffer (dpi, s, strlen (s));
4255 d_append_num (struct d_print_info *dpi, int l)
4258 sprintf (buf,"%d", l);
4259 d_append_string (dpi, buf);
4263 d_last_char (struct d_print_info *dpi)
4265 return dpi->last_char;
4268 /* Turn components into a human readable string. OPTIONS is the
4269 options bits passed to the demangler. DC is the tree to print.
4270 CALLBACK is a function to call to flush demangled string segments
4271 as they fill the intermediate buffer, and OPAQUE is a generalized
4272 callback argument. On success, this returns 1. On failure,
4273 it returns 0, indicating a bad parse. It does not use heap
4274 memory to build an output string, so cannot encounter memory
4275 allocation failure. */
4277 CP_STATIC_IF_GLIBCPP_V3
4279 cplus_demangle_print_callback (int options,
4280 struct demangle_component *dc,
4281 demangle_callbackref callback, void *opaque)
4283 struct d_print_info dpi;
4285 d_print_init (&dpi, callback, opaque, dc);
4288 #ifdef CP_DYNAMIC_ARRAYS
4289 /* Avoid zero-length VLAs, which are prohibited by the C99 standard
4290 and flagged as errors by Address Sanitizer. */
4291 __extension__ struct d_saved_scope scopes[(dpi.num_saved_scopes > 0)
4292 ? dpi.num_saved_scopes : 1];
4293 __extension__ struct d_print_template temps[(dpi.num_copy_templates > 0)
4294 ? dpi.num_copy_templates : 1];
4296 dpi.saved_scopes = scopes;
4297 dpi.copy_templates = temps;
4299 dpi.saved_scopes = alloca (dpi.num_saved_scopes
4300 * sizeof (*dpi.saved_scopes));
4301 dpi.copy_templates = alloca (dpi.num_copy_templates
4302 * sizeof (*dpi.copy_templates));
4305 d_print_comp (&dpi, options, dc);
4308 d_print_flush (&dpi);
4310 return ! d_print_saw_error (&dpi);
4313 /* Turn components into a human readable string. OPTIONS is the
4314 options bits passed to the demangler. DC is the tree to print.
4315 ESTIMATE is a guess at the length of the result. This returns a
4316 string allocated by malloc, or NULL on error. On success, this
4317 sets *PALC to the size of the allocated buffer. On failure, this
4318 sets *PALC to 0 for a bad parse, or to 1 for a memory allocation
4321 CP_STATIC_IF_GLIBCPP_V3
4323 cplus_demangle_print (int options, struct demangle_component *dc,
4324 int estimate, size_t *palc)
4326 struct d_growable_string dgs;
4328 d_growable_string_init (&dgs, estimate);
4330 if (! cplus_demangle_print_callback (options, dc,
4331 d_growable_string_callback_adapter,
4339 *palc = dgs.allocation_failure ? 1 : dgs.alc;
4343 /* Returns the I'th element of the template arglist ARGS, or NULL on
4344 failure. If I is negative, return the entire arglist. */
4346 static struct demangle_component *
4347 d_index_template_argument (struct demangle_component *args, int i)
4349 struct demangle_component *a;
4352 /* Print the whole argument pack. */
4359 if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4365 if (i != 0 || a == NULL)
4371 /* Returns the template argument from the current context indicated by DC,
4372 which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */
4374 static struct demangle_component *
4375 d_lookup_template_argument (struct d_print_info *dpi,
4376 const struct demangle_component *dc)
4378 if (dpi->templates == NULL)
4380 d_print_error (dpi);
4384 return d_index_template_argument
4385 (d_right (dpi->templates->template_decl),
4386 dc->u.s_number.number);
4389 /* Returns a template argument pack used in DC (any will do), or NULL. */
4391 static struct demangle_component *
4392 d_find_pack (struct d_print_info *dpi,
4393 const struct demangle_component *dc)
4395 struct demangle_component *a;
4401 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
4402 a = d_lookup_template_argument (dpi, dc);
4403 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4407 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4410 case DEMANGLE_COMPONENT_LAMBDA:
4411 case DEMANGLE_COMPONENT_NAME:
4412 case DEMANGLE_COMPONENT_TAGGED_NAME:
4413 case DEMANGLE_COMPONENT_OPERATOR:
4414 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
4415 case DEMANGLE_COMPONENT_SUB_STD:
4416 case DEMANGLE_COMPONENT_CHARACTER:
4417 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
4418 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
4419 case DEMANGLE_COMPONENT_FIXED_TYPE:
4420 case DEMANGLE_COMPONENT_DEFAULT_ARG:
4421 case DEMANGLE_COMPONENT_NUMBER:
4424 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4425 return d_find_pack (dpi, dc->u.s_extended_operator.name);
4426 case DEMANGLE_COMPONENT_CTOR:
4427 return d_find_pack (dpi, dc->u.s_ctor.name);
4428 case DEMANGLE_COMPONENT_DTOR:
4429 return d_find_pack (dpi, dc->u.s_dtor.name);
4432 a = d_find_pack (dpi, d_left (dc));
4435 return d_find_pack (dpi, d_right (dc));
4439 /* Returns the length of the template argument pack DC. */
4442 d_pack_length (const struct demangle_component *dc)
4445 while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST
4446 && d_left (dc) != NULL)
4454 /* Returns the number of template args in DC, expanding any pack expansions
4458 d_args_length (struct d_print_info *dpi, const struct demangle_component *dc)
4461 for (; dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST;
4464 struct demangle_component *elt = d_left (dc);
4467 if (elt->type == DEMANGLE_COMPONENT_PACK_EXPANSION)
4469 struct demangle_component *a = d_find_pack (dpi, d_left (elt));
4470 count += d_pack_length (a);
4478 /* DC is a component of a mangled expression. Print it, wrapped in parens
4482 d_print_subexpr (struct d_print_info *dpi, int options,
4483 struct demangle_component *dc)
4486 if (dc->type == DEMANGLE_COMPONENT_NAME
4487 || dc->type == DEMANGLE_COMPONENT_QUAL_NAME
4488 || dc->type == DEMANGLE_COMPONENT_INITIALIZER_LIST
4489 || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM)
4492 d_append_char (dpi, '(');
4493 d_print_comp (dpi, options, dc);
4495 d_append_char (dpi, ')');
4498 /* Save the current scope. */
4501 d_save_scope (struct d_print_info *dpi,
4502 const struct demangle_component *container)
4504 struct d_saved_scope *scope;
4505 struct d_print_template *src, **link;
4507 if (dpi->next_saved_scope >= dpi->num_saved_scopes)
4509 d_print_error (dpi);
4512 scope = &dpi->saved_scopes[dpi->next_saved_scope];
4513 dpi->next_saved_scope++;
4515 scope->container = container;
4516 link = &scope->templates;
4518 for (src = dpi->templates; src != NULL; src = src->next)
4520 struct d_print_template *dst;
4522 if (dpi->next_copy_template >= dpi->num_copy_templates)
4524 d_print_error (dpi);
4527 dst = &dpi->copy_templates[dpi->next_copy_template];
4528 dpi->next_copy_template++;
4530 dst->template_decl = src->template_decl;
4538 /* Attempt to locate a previously saved scope. Returns NULL if no
4539 corresponding saved scope was found. */
4541 static struct d_saved_scope *
4542 d_get_saved_scope (struct d_print_info *dpi,
4543 const struct demangle_component *container)
4547 for (i = 0; i < dpi->next_saved_scope; i++)
4548 if (dpi->saved_scopes[i].container == container)
4549 return &dpi->saved_scopes[i];
4554 /* If DC is a C++17 fold-expression, print it and return true; otherwise
4558 d_maybe_print_fold_expression (struct d_print_info *dpi, int options,
4559 struct demangle_component *dc)
4561 struct demangle_component *ops, *operator_, *op1, *op2;
4564 const char *fold_code = d_left (dc)->u.s_operator.op->code;
4565 if (fold_code[0] != 'f')
4569 operator_ = d_left (ops);
4570 op1 = d_right (ops);
4572 if (op1->type == DEMANGLE_COMPONENT_TRINARY_ARG2)
4574 op2 = d_right (op1);
4578 /* Print the whole pack. */
4579 save_idx = dpi->pack_index;
4580 dpi->pack_index = -1;
4582 switch (fold_code[1])
4584 /* Unary left fold, (... + X). */
4586 d_append_string (dpi, "(...");
4587 d_print_expr_op (dpi, options, operator_);
4588 d_print_subexpr (dpi, options, op1);
4589 d_append_char (dpi, ')');
4592 /* Unary right fold, (X + ...). */
4594 d_append_char (dpi, '(');
4595 d_print_subexpr (dpi, options, op1);
4596 d_print_expr_op (dpi, options, operator_);
4597 d_append_string (dpi, "...)");
4600 /* Binary left fold, (42 + ... + X). */
4602 /* Binary right fold, (X + ... + 42). */
4604 d_append_char (dpi, '(');
4605 d_print_subexpr (dpi, options, op1);
4606 d_print_expr_op (dpi, options, operator_);
4607 d_append_string (dpi, "...");
4608 d_print_expr_op (dpi, options, operator_);
4609 d_print_subexpr (dpi, options, op2);
4610 d_append_char (dpi, ')');
4614 dpi->pack_index = save_idx;
4618 /* Subroutine to handle components. */
4621 d_print_comp_inner (struct d_print_info *dpi, int options,
4622 struct demangle_component *dc)
4624 /* Magic variable to let reference smashing skip over the next modifier
4625 without needing to modify *dc. */
4626 struct demangle_component *mod_inner = NULL;
4628 /* Variable used to store the current templates while a previously
4629 captured scope is used. */
4630 struct d_print_template *saved_templates;
4632 /* Nonzero if templates have been stored in the above variable. */
4633 int need_template_restore = 0;
4637 d_print_error (dpi);
4640 if (d_print_saw_error (dpi))
4645 case DEMANGLE_COMPONENT_NAME:
4646 if ((options & DMGL_JAVA) == 0)
4647 d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len);
4649 d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len);
4652 case DEMANGLE_COMPONENT_TAGGED_NAME:
4653 d_print_comp (dpi, options, d_left (dc));
4654 d_append_string (dpi, "[abi:");
4655 d_print_comp (dpi, options, d_right (dc));
4656 d_append_char (dpi, ']');
4659 case DEMANGLE_COMPONENT_QUAL_NAME:
4660 case DEMANGLE_COMPONENT_LOCAL_NAME:
4661 d_print_comp (dpi, options, d_left (dc));
4662 if ((options & DMGL_JAVA) == 0)
4663 d_append_string (dpi, "::");
4665 d_append_char (dpi, '.');
4667 struct demangle_component *local_name = d_right (dc);
4668 if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4670 d_append_string (dpi, "{default arg#");
4671 d_append_num (dpi, local_name->u.s_unary_num.num + 1);
4672 d_append_string (dpi, "}::");
4673 local_name = local_name->u.s_unary_num.sub;
4675 d_print_comp (dpi, options, local_name);
4679 case DEMANGLE_COMPONENT_TYPED_NAME:
4681 struct d_print_mod *hold_modifiers;
4682 struct demangle_component *typed_name;
4683 struct d_print_mod adpm[4];
4685 struct d_print_template dpt;
4687 /* Pass the name down to the type so that it can be printed in
4688 the right place for the type. We also have to pass down
4689 any CV-qualifiers, which apply to the this parameter. */
4690 hold_modifiers = dpi->modifiers;
4693 typed_name = d_left (dc);
4694 while (typed_name != NULL)
4696 if (i >= sizeof adpm / sizeof adpm[0])
4698 d_print_error (dpi);
4702 adpm[i].next = dpi->modifiers;
4703 dpi->modifiers = &adpm[i];
4704 adpm[i].mod = typed_name;
4705 adpm[i].printed = 0;
4706 adpm[i].templates = dpi->templates;
4709 if (!is_fnqual_component_type (typed_name->type))
4712 typed_name = d_left (typed_name);
4715 if (typed_name == NULL)
4717 d_print_error (dpi);
4721 /* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then
4722 there may be CV-qualifiers on its right argument which
4723 really apply here; this happens when parsing a class that
4724 is local to a function. */
4725 if (typed_name->type == DEMANGLE_COMPONENT_LOCAL_NAME)
4727 typed_name = d_right (typed_name);
4728 if (typed_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4729 typed_name = typed_name->u.s_unary_num.sub;
4730 if (typed_name == NULL)
4732 d_print_error (dpi);
4735 while (is_fnqual_component_type (typed_name->type))
4737 if (i >= sizeof adpm / sizeof adpm[0])
4739 d_print_error (dpi);
4743 adpm[i] = adpm[i - 1];
4744 adpm[i].next = &adpm[i - 1];
4745 dpi->modifiers = &adpm[i];
4747 adpm[i - 1].mod = typed_name;
4748 adpm[i - 1].printed = 0;
4749 adpm[i - 1].templates = dpi->templates;
4752 typed_name = d_left (typed_name);
4756 /* If typed_name is a template, then it applies to the
4757 function type as well. */
4758 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
4760 dpt.next = dpi->templates;
4761 dpi->templates = &dpt;
4762 dpt.template_decl = typed_name;
4765 d_print_comp (dpi, options, d_right (dc));
4767 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
4768 dpi->templates = dpt.next;
4770 /* If the modifiers didn't get printed by the type, print them
4775 if (! adpm[i].printed)
4777 d_append_char (dpi, ' ');
4778 d_print_mod (dpi, options, adpm[i].mod);
4782 dpi->modifiers = hold_modifiers;
4787 case DEMANGLE_COMPONENT_TEMPLATE:
4789 struct d_print_mod *hold_dpm;
4790 struct demangle_component *dcl;
4791 const struct demangle_component *hold_current;
4793 /* This template may need to be referenced by a cast operator
4794 contained in its subtree. */
4795 hold_current = dpi->current_template;
4796 dpi->current_template = dc;
4798 /* Don't push modifiers into a template definition. Doing so
4799 could give the wrong definition for a template argument.
4800 Instead, treat the template essentially as a name. */
4802 hold_dpm = dpi->modifiers;
4803 dpi->modifiers = NULL;
4807 if ((options & DMGL_JAVA) != 0
4808 && dcl->type == DEMANGLE_COMPONENT_NAME
4809 && dcl->u.s_name.len == 6
4810 && strncmp (dcl->u.s_name.s, "JArray", 6) == 0)
4812 /* Special-case Java arrays, so that JArray<TYPE> appears
4813 instead as TYPE[]. */
4815 d_print_comp (dpi, options, d_right (dc));
4816 d_append_string (dpi, "[]");
4820 d_print_comp (dpi, options, dcl);
4821 if (d_last_char (dpi) == '<')
4822 d_append_char (dpi, ' ');
4823 d_append_char (dpi, '<');
4824 d_print_comp (dpi, options, d_right (dc));
4825 /* Avoid generating two consecutive '>' characters, to avoid
4826 the C++ syntactic ambiguity. */
4827 if (d_last_char (dpi) == '>')
4828 d_append_char (dpi, ' ');
4829 d_append_char (dpi, '>');
4832 dpi->modifiers = hold_dpm;
4833 dpi->current_template = hold_current;
4838 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
4839 if (dpi->is_lambda_arg)
4841 /* Show the template parm index, as that's how g++ displays
4842 these, and future proofs us against potential
4843 '[]<typename T> (T *a, T *b) {...}'. */
4844 d_append_buffer (dpi, "auto:", 5);
4845 d_append_num (dpi, dc->u.s_number.number + 1);
4849 struct d_print_template *hold_dpt;
4850 struct demangle_component *a = d_lookup_template_argument (dpi, dc);
4852 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
4853 a = d_index_template_argument (a, dpi->pack_index);
4857 d_print_error (dpi);
4861 /* While processing this parameter, we need to pop the list
4862 of templates. This is because the template parameter may
4863 itself be a reference to a parameter of an outer
4866 hold_dpt = dpi->templates;
4867 dpi->templates = hold_dpt->next;
4869 d_print_comp (dpi, options, a);
4871 dpi->templates = hold_dpt;
4875 case DEMANGLE_COMPONENT_CTOR:
4876 d_print_comp (dpi, options, dc->u.s_ctor.name);
4879 case DEMANGLE_COMPONENT_DTOR:
4880 d_append_char (dpi, '~');
4881 d_print_comp (dpi, options, dc->u.s_dtor.name);
4884 case DEMANGLE_COMPONENT_VTABLE:
4885 d_append_string (dpi, "vtable for ");
4886 d_print_comp (dpi, options, d_left (dc));
4889 case DEMANGLE_COMPONENT_VTT:
4890 d_append_string (dpi, "VTT for ");
4891 d_print_comp (dpi, options, d_left (dc));
4894 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
4895 d_append_string (dpi, "construction vtable for ");
4896 d_print_comp (dpi, options, d_left (dc));
4897 d_append_string (dpi, "-in-");
4898 d_print_comp (dpi, options, d_right (dc));
4901 case DEMANGLE_COMPONENT_TYPEINFO:
4902 d_append_string (dpi, "typeinfo for ");
4903 d_print_comp (dpi, options, d_left (dc));
4906 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
4907 d_append_string (dpi, "typeinfo name for ");
4908 d_print_comp (dpi, options, d_left (dc));
4911 case DEMANGLE_COMPONENT_TYPEINFO_FN:
4912 d_append_string (dpi, "typeinfo fn for ");
4913 d_print_comp (dpi, options, d_left (dc));
4916 case DEMANGLE_COMPONENT_THUNK:
4917 d_append_string (dpi, "non-virtual thunk to ");
4918 d_print_comp (dpi, options, d_left (dc));
4921 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
4922 d_append_string (dpi, "virtual thunk to ");
4923 d_print_comp (dpi, options, d_left (dc));
4926 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
4927 d_append_string (dpi, "covariant return thunk to ");
4928 d_print_comp (dpi, options, d_left (dc));
4931 case DEMANGLE_COMPONENT_JAVA_CLASS:
4932 d_append_string (dpi, "java Class for ");
4933 d_print_comp (dpi, options, d_left (dc));
4936 case DEMANGLE_COMPONENT_GUARD:
4937 d_append_string (dpi, "guard variable for ");
4938 d_print_comp (dpi, options, d_left (dc));
4941 case DEMANGLE_COMPONENT_TLS_INIT:
4942 d_append_string (dpi, "TLS init function for ");
4943 d_print_comp (dpi, options, d_left (dc));
4946 case DEMANGLE_COMPONENT_TLS_WRAPPER:
4947 d_append_string (dpi, "TLS wrapper function for ");
4948 d_print_comp (dpi, options, d_left (dc));
4951 case DEMANGLE_COMPONENT_REFTEMP:
4952 d_append_string (dpi, "reference temporary #");
4953 d_print_comp (dpi, options, d_right (dc));
4954 d_append_string (dpi, " for ");
4955 d_print_comp (dpi, options, d_left (dc));
4958 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
4959 d_append_string (dpi, "hidden alias for ");
4960 d_print_comp (dpi, options, d_left (dc));
4963 case DEMANGLE_COMPONENT_TRANSACTION_CLONE:
4964 d_append_string (dpi, "transaction clone for ");
4965 d_print_comp (dpi, options, d_left (dc));
4968 case DEMANGLE_COMPONENT_NONTRANSACTION_CLONE:
4969 d_append_string (dpi, "non-transaction clone for ");
4970 d_print_comp (dpi, options, d_left (dc));
4973 case DEMANGLE_COMPONENT_SUB_STD:
4974 d_append_buffer (dpi, dc->u.s_string.string, dc->u.s_string.len);
4977 case DEMANGLE_COMPONENT_RESTRICT:
4978 case DEMANGLE_COMPONENT_VOLATILE:
4979 case DEMANGLE_COMPONENT_CONST:
4981 struct d_print_mod *pdpm;
4983 /* When printing arrays, it's possible to have cases where the
4984 same CV-qualifier gets pushed on the stack multiple times.
4985 We only need to print it once. */
4987 for (pdpm = dpi->modifiers; pdpm != NULL; pdpm = pdpm->next)
4989 if (! pdpm->printed)
4991 if (pdpm->mod->type != DEMANGLE_COMPONENT_RESTRICT
4992 && pdpm->mod->type != DEMANGLE_COMPONENT_VOLATILE
4993 && pdpm->mod->type != DEMANGLE_COMPONENT_CONST)
4995 if (pdpm->mod->type == dc->type)
4997 d_print_comp (dpi, options, d_left (dc));
5005 case DEMANGLE_COMPONENT_REFERENCE:
5006 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5008 /* Handle reference smashing: & + && = &. */
5009 struct demangle_component *sub = d_left (dc);
5010 if (!dpi->is_lambda_arg
5011 && sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
5013 struct d_saved_scope *scope = d_get_saved_scope (dpi, sub);
5014 struct demangle_component *a;
5018 /* This is the first time SUB has been traversed.
5019 We need to capture the current templates so
5020 they can be restored if SUB is reentered as a
5022 d_save_scope (dpi, sub);
5023 if (d_print_saw_error (dpi))
5028 const struct d_component_stack *dcse;
5029 int found_self_or_parent = 0;
5031 /* This traversal is reentering SUB as a substition.
5032 If we are not beneath SUB or DC in the tree then we
5033 need to restore SUB's template stack temporarily. */
5034 for (dcse = dpi->component_stack; dcse != NULL;
5035 dcse = dcse->parent)
5039 && dcse != dpi->component_stack))
5041 found_self_or_parent = 1;
5046 if (!found_self_or_parent)
5048 saved_templates = dpi->templates;
5049 dpi->templates = scope->templates;
5050 need_template_restore = 1;
5054 a = d_lookup_template_argument (dpi, sub);
5055 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
5056 a = d_index_template_argument (a, dpi->pack_index);
5060 if (need_template_restore)
5061 dpi->templates = saved_templates;
5063 d_print_error (dpi);
5070 if (sub->type == DEMANGLE_COMPONENT_REFERENCE
5071 || sub->type == dc->type)
5073 else if (sub->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE)
5074 mod_inner = d_left (sub);
5078 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
5079 case DEMANGLE_COMPONENT_POINTER:
5080 case DEMANGLE_COMPONENT_COMPLEX:
5081 case DEMANGLE_COMPONENT_IMAGINARY:
5082 FNQUAL_COMPONENT_CASE:
5085 /* We keep a list of modifiers on the stack. */
5086 struct d_print_mod dpm;
5088 dpm.next = dpi->modifiers;
5089 dpi->modifiers = &dpm;
5092 dpm.templates = dpi->templates;
5095 mod_inner = d_left (dc);
5097 d_print_comp (dpi, options, mod_inner);
5099 /* If the modifier didn't get printed by the type, print it
5102 d_print_mod (dpi, options, dc);
5104 dpi->modifiers = dpm.next;
5106 if (need_template_restore)
5107 dpi->templates = saved_templates;
5112 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
5113 if ((options & DMGL_JAVA) == 0)
5114 d_append_buffer (dpi, dc->u.s_builtin.type->name,
5115 dc->u.s_builtin.type->len);
5117 d_append_buffer (dpi, dc->u.s_builtin.type->java_name,
5118 dc->u.s_builtin.type->java_len);
5121 case DEMANGLE_COMPONENT_VENDOR_TYPE:
5122 d_print_comp (dpi, options, d_left (dc));
5125 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
5127 if ((options & DMGL_RET_POSTFIX) != 0)
5128 d_print_function_type (dpi,
5129 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5130 dc, dpi->modifiers);
5132 /* Print return type if present */
5133 if (d_left (dc) != NULL && (options & DMGL_RET_POSTFIX) != 0)
5134 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5136 else if (d_left (dc) != NULL && (options & DMGL_RET_DROP) == 0)
5138 struct d_print_mod dpm;
5140 /* We must pass this type down as a modifier in order to
5141 print it in the right location. */
5142 dpm.next = dpi->modifiers;
5143 dpi->modifiers = &dpm;
5146 dpm.templates = dpi->templates;
5148 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5151 dpi->modifiers = dpm.next;
5156 /* In standard prefix notation, there is a space between the
5157 return type and the function signature. */
5158 if ((options & DMGL_RET_POSTFIX) == 0)
5159 d_append_char (dpi, ' ');
5162 if ((options & DMGL_RET_POSTFIX) == 0)
5163 d_print_function_type (dpi,
5164 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
5165 dc, dpi->modifiers);
5170 case DEMANGLE_COMPONENT_ARRAY_TYPE:
5172 struct d_print_mod *hold_modifiers;
5173 struct d_print_mod adpm[4];
5175 struct d_print_mod *pdpm;
5177 /* We must pass this type down as a modifier in order to print
5178 multi-dimensional arrays correctly. If the array itself is
5179 CV-qualified, we act as though the element type were
5180 CV-qualified. We do this by copying the modifiers down
5181 rather than fiddling pointers, so that we don't wind up
5182 with a d_print_mod higher on the stack pointing into our
5183 stack frame after we return. */
5185 hold_modifiers = dpi->modifiers;
5187 adpm[0].next = hold_modifiers;
5188 dpi->modifiers = &adpm[0];
5190 adpm[0].printed = 0;
5191 adpm[0].templates = dpi->templates;
5194 pdpm = hold_modifiers;
5196 && (pdpm->mod->type == DEMANGLE_COMPONENT_RESTRICT
5197 || pdpm->mod->type == DEMANGLE_COMPONENT_VOLATILE
5198 || pdpm->mod->type == DEMANGLE_COMPONENT_CONST))
5200 if (! pdpm->printed)
5202 if (i >= sizeof adpm / sizeof adpm[0])
5204 d_print_error (dpi);
5209 adpm[i].next = dpi->modifiers;
5210 dpi->modifiers = &adpm[i];
5218 d_print_comp (dpi, options, d_right (dc));
5220 dpi->modifiers = hold_modifiers;
5222 if (adpm[0].printed)
5228 d_print_mod (dpi, options, adpm[i].mod);
5231 d_print_array_type (dpi, options, dc, dpi->modifiers);
5236 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
5237 case DEMANGLE_COMPONENT_VECTOR_TYPE:
5239 struct d_print_mod dpm;
5241 dpm.next = dpi->modifiers;
5242 dpi->modifiers = &dpm;
5245 dpm.templates = dpi->templates;
5247 d_print_comp (dpi, options, d_right (dc));
5249 /* If the modifier didn't get printed by the type, print it
5252 d_print_mod (dpi, options, dc);
5254 dpi->modifiers = dpm.next;
5259 case DEMANGLE_COMPONENT_FIXED_TYPE:
5260 if (dc->u.s_fixed.sat)
5261 d_append_string (dpi, "_Sat ");
5262 /* Don't print "int _Accum". */
5263 if (dc->u.s_fixed.length->u.s_builtin.type
5264 != &cplus_demangle_builtin_types['i'-'a'])
5266 d_print_comp (dpi, options, dc->u.s_fixed.length);
5267 d_append_char (dpi, ' ');
5269 if (dc->u.s_fixed.accum)
5270 d_append_string (dpi, "_Accum");
5272 d_append_string (dpi, "_Fract");
5275 case DEMANGLE_COMPONENT_ARGLIST:
5276 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
5277 if (d_left (dc) != NULL)
5278 d_print_comp (dpi, options, d_left (dc));
5279 if (d_right (dc) != NULL)
5282 unsigned long int flush_count;
5283 /* Make sure ", " isn't flushed by d_append_string, otherwise
5284 dpi->len -= 2 wouldn't work. */
5285 if (dpi->len >= sizeof (dpi->buf) - 2)
5286 d_print_flush (dpi);
5287 d_append_string (dpi, ", ");
5289 flush_count = dpi->flush_count;
5290 d_print_comp (dpi, options, d_right (dc));
5291 /* If that didn't print anything (which can happen with empty
5292 template argument packs), remove the comma and space. */
5293 if (dpi->flush_count == flush_count && dpi->len == len)
5298 case DEMANGLE_COMPONENT_INITIALIZER_LIST:
5300 struct demangle_component *type = d_left (dc);
5301 struct demangle_component *list = d_right (dc);
5304 d_print_comp (dpi, options, type);
5305 d_append_char (dpi, '{');
5306 d_print_comp (dpi, options, list);
5307 d_append_char (dpi, '}');
5311 case DEMANGLE_COMPONENT_OPERATOR:
5313 const struct demangle_operator_info *op = dc->u.s_operator.op;
5316 d_append_string (dpi, "operator");
5317 /* Add a space before new/delete. */
5318 if (IS_LOWER (op->name[0]))
5319 d_append_char (dpi, ' ');
5320 /* Omit a trailing space. */
5321 if (op->name[len-1] == ' ')
5323 d_append_buffer (dpi, op->name, len);
5327 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
5328 d_append_string (dpi, "operator ");
5329 d_print_comp (dpi, options, dc->u.s_extended_operator.name);
5332 case DEMANGLE_COMPONENT_CONVERSION:
5333 d_append_string (dpi, "operator ");
5334 d_print_conversion (dpi, options, dc);
5337 case DEMANGLE_COMPONENT_NULLARY:
5338 d_print_expr_op (dpi, options, d_left (dc));
5341 case DEMANGLE_COMPONENT_UNARY:
5343 struct demangle_component *op = d_left (dc);
5344 struct demangle_component *operand = d_right (dc);
5345 const char *code = NULL;
5347 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
5349 code = op->u.s_operator.op->code;
5350 if (!strcmp (code, "ad"))
5352 /* Don't print the argument list for the address of a
5354 if (operand->type == DEMANGLE_COMPONENT_TYPED_NAME
5355 && d_left (operand)->type == DEMANGLE_COMPONENT_QUAL_NAME
5356 && d_right (operand)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
5357 operand = d_left (operand);
5359 if (operand->type == DEMANGLE_COMPONENT_BINARY_ARGS)
5361 /* This indicates a suffix operator. */
5362 operand = d_left (operand);
5363 d_print_subexpr (dpi, options, operand);
5364 d_print_expr_op (dpi, options, op);
5369 /* For sizeof..., just print the pack length. */
5370 if (code && !strcmp (code, "sZ"))
5372 struct demangle_component *a = d_find_pack (dpi, operand);
5373 int len = d_pack_length (a);
5374 d_append_num (dpi, len);
5377 else if (code && !strcmp (code, "sP"))
5379 int len = d_args_length (dpi, operand);
5380 d_append_num (dpi, len);
5384 if (op->type != DEMANGLE_COMPONENT_CAST)
5385 d_print_expr_op (dpi, options, op);
5388 d_append_char (dpi, '(');
5389 d_print_cast (dpi, options, op);
5390 d_append_char (dpi, ')');
5392 if (code && !strcmp (code, "gs"))
5393 /* Avoid parens after '::'. */
5394 d_print_comp (dpi, options, operand);
5395 else if (code && !strcmp (code, "st"))
5396 /* Always print parens for sizeof (type). */
5398 d_append_char (dpi, '(');
5399 d_print_comp (dpi, options, operand);
5400 d_append_char (dpi, ')');
5403 d_print_subexpr (dpi, options, operand);
5407 case DEMANGLE_COMPONENT_BINARY:
5408 if (d_right (dc)->type != DEMANGLE_COMPONENT_BINARY_ARGS)
5410 d_print_error (dpi);
5414 if (op_is_new_cast (d_left (dc)))
5416 d_print_expr_op (dpi, options, d_left (dc));
5417 d_append_char (dpi, '<');
5418 d_print_comp (dpi, options, d_left (d_right (dc)));
5419 d_append_string (dpi, ">(");
5420 d_print_comp (dpi, options, d_right (d_right (dc)));
5421 d_append_char (dpi, ')');
5425 if (d_maybe_print_fold_expression (dpi, options, dc))
5428 /* We wrap an expression which uses the greater-than operator in
5429 an extra layer of parens so that it does not get confused
5430 with the '>' which ends the template parameters. */
5431 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
5432 && d_left (dc)->u.s_operator.op->len == 1
5433 && d_left (dc)->u.s_operator.op->name[0] == '>')
5434 d_append_char (dpi, '(');
5436 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") == 0
5437 && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_TYPED_NAME)
5439 /* Function call used in an expression should not have printed types
5440 of the function arguments. Values of the function arguments still
5441 get printed below. */
5443 const struct demangle_component *func = d_left (d_right (dc));
5445 if (d_right (func)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE)
5446 d_print_error (dpi);
5447 d_print_subexpr (dpi, options, d_left (func));
5450 d_print_subexpr (dpi, options, d_left (d_right (dc)));
5451 if (strcmp (d_left (dc)->u.s_operator.op->code, "ix") == 0)
5453 d_append_char (dpi, '[');
5454 d_print_comp (dpi, options, d_right (d_right (dc)));
5455 d_append_char (dpi, ']');
5459 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") != 0)
5460 d_print_expr_op (dpi, options, d_left (dc));
5461 d_print_subexpr (dpi, options, d_right (d_right (dc)));
5464 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
5465 && d_left (dc)->u.s_operator.op->len == 1
5466 && d_left (dc)->u.s_operator.op->name[0] == '>')
5467 d_append_char (dpi, ')');
5471 case DEMANGLE_COMPONENT_BINARY_ARGS:
5472 /* We should only see this as part of DEMANGLE_COMPONENT_BINARY. */
5473 d_print_error (dpi);
5476 case DEMANGLE_COMPONENT_TRINARY:
5477 if (d_right (dc)->type != DEMANGLE_COMPONENT_TRINARY_ARG1
5478 || d_right (d_right (dc))->type != DEMANGLE_COMPONENT_TRINARY_ARG2)
5480 d_print_error (dpi);
5483 if (d_maybe_print_fold_expression (dpi, options, dc))
5486 struct demangle_component *op = d_left (dc);
5487 struct demangle_component *first = d_left (d_right (dc));
5488 struct demangle_component *second = d_left (d_right (d_right (dc)));
5489 struct demangle_component *third = d_right (d_right (d_right (dc)));
5491 if (!strcmp (op->u.s_operator.op->code, "qu"))
5493 d_print_subexpr (dpi, options, first);
5494 d_print_expr_op (dpi, options, op);
5495 d_print_subexpr (dpi, options, second);
5496 d_append_string (dpi, " : ");
5497 d_print_subexpr (dpi, options, third);
5501 d_append_string (dpi, "new ");
5502 if (d_left (first) != NULL)
5504 d_print_subexpr (dpi, options, first);
5505 d_append_char (dpi, ' ');
5507 d_print_comp (dpi, options, second);
5509 d_print_subexpr (dpi, options, third);
5514 case DEMANGLE_COMPONENT_TRINARY_ARG1:
5515 case DEMANGLE_COMPONENT_TRINARY_ARG2:
5516 /* We should only see these are part of DEMANGLE_COMPONENT_TRINARY. */
5517 d_print_error (dpi);
5520 case DEMANGLE_COMPONENT_LITERAL:
5521 case DEMANGLE_COMPONENT_LITERAL_NEG:
5523 enum d_builtin_type_print tp;
5525 /* For some builtin types, produce simpler output. */
5526 tp = D_PRINT_DEFAULT;
5527 if (d_left (dc)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE)
5529 tp = d_left (dc)->u.s_builtin.type->print;
5533 case D_PRINT_UNSIGNED:
5535 case D_PRINT_UNSIGNED_LONG:
5536 case D_PRINT_LONG_LONG:
5537 case D_PRINT_UNSIGNED_LONG_LONG:
5538 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME)
5540 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
5541 d_append_char (dpi, '-');
5542 d_print_comp (dpi, options, d_right (dc));
5547 case D_PRINT_UNSIGNED:
5548 d_append_char (dpi, 'u');
5551 d_append_char (dpi, 'l');
5553 case D_PRINT_UNSIGNED_LONG:
5554 d_append_string (dpi, "ul");
5556 case D_PRINT_LONG_LONG:
5557 d_append_string (dpi, "ll");
5559 case D_PRINT_UNSIGNED_LONG_LONG:
5560 d_append_string (dpi, "ull");
5568 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME
5569 && d_right (dc)->u.s_name.len == 1
5570 && dc->type == DEMANGLE_COMPONENT_LITERAL)
5572 switch (d_right (dc)->u.s_name.s[0])
5575 d_append_string (dpi, "false");
5578 d_append_string (dpi, "true");
5591 d_append_char (dpi, '(');
5592 d_print_comp (dpi, options, d_left (dc));
5593 d_append_char (dpi, ')');
5594 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
5595 d_append_char (dpi, '-');
5596 if (tp == D_PRINT_FLOAT)
5597 d_append_char (dpi, '[');
5598 d_print_comp (dpi, options, d_right (dc));
5599 if (tp == D_PRINT_FLOAT)
5600 d_append_char (dpi, ']');
5604 case DEMANGLE_COMPONENT_NUMBER:
5605 d_append_num (dpi, dc->u.s_number.number);
5608 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
5609 d_append_string (dpi, "java resource ");
5610 d_print_comp (dpi, options, d_left (dc));
5613 case DEMANGLE_COMPONENT_COMPOUND_NAME:
5614 d_print_comp (dpi, options, d_left (dc));
5615 d_print_comp (dpi, options, d_right (dc));
5618 case DEMANGLE_COMPONENT_CHARACTER:
5619 d_append_char (dpi, dc->u.s_character.character);
5622 case DEMANGLE_COMPONENT_DECLTYPE:
5623 d_append_string (dpi, "decltype (");
5624 d_print_comp (dpi, options, d_left (dc));
5625 d_append_char (dpi, ')');
5628 case DEMANGLE_COMPONENT_PACK_EXPANSION:
5632 struct demangle_component *a = d_find_pack (dpi, d_left (dc));
5635 /* d_find_pack won't find anything if the only packs involved
5636 in this expansion are function parameter packs; in that
5637 case, just print the pattern and "...". */
5638 d_print_subexpr (dpi, options, d_left (dc));
5639 d_append_string (dpi, "...");
5643 len = d_pack_length (a);
5645 for (i = 0; i < len; ++i)
5647 dpi->pack_index = i;
5648 d_print_comp (dpi, options, dc);
5650 d_append_string (dpi, ", ");
5655 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
5657 long num = dc->u.s_number.number;
5659 d_append_string (dpi, "this");
5662 d_append_string (dpi, "{parm#");
5663 d_append_num (dpi, num);
5664 d_append_char (dpi, '}');
5669 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
5670 d_append_string (dpi, "global constructors keyed to ");
5671 d_print_comp (dpi, options, dc->u.s_binary.left);
5674 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
5675 d_append_string (dpi, "global destructors keyed to ");
5676 d_print_comp (dpi, options, dc->u.s_binary.left);
5679 case DEMANGLE_COMPONENT_LAMBDA:
5680 d_append_string (dpi, "{lambda(");
5681 /* Generic lambda auto parms are mangled as the template type
5683 dpi->is_lambda_arg++;
5684 d_print_comp (dpi, options, dc->u.s_unary_num.sub);
5685 dpi->is_lambda_arg--;
5686 d_append_string (dpi, ")#");
5687 d_append_num (dpi, dc->u.s_unary_num.num + 1);
5688 d_append_char (dpi, '}');
5691 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
5692 d_append_string (dpi, "{unnamed type#");
5693 d_append_num (dpi, dc->u.s_number.number + 1);
5694 d_append_char (dpi, '}');
5697 case DEMANGLE_COMPONENT_CLONE:
5698 d_print_comp (dpi, options, d_left (dc));
5699 d_append_string (dpi, " [clone ");
5700 d_print_comp (dpi, options, d_right (dc));
5701 d_append_char (dpi, ']');
5705 d_print_error (dpi);
5711 d_print_comp (struct d_print_info *dpi, int options,
5712 struct demangle_component *dc)
5714 struct d_component_stack self;
5715 if (dc == NULL || dc->d_printing > 1 || dpi->recursion > MAX_RECURSION_COUNT)
5717 d_print_error (dpi);
5725 self.parent = dpi->component_stack;
5726 dpi->component_stack = &self;
5728 d_print_comp_inner (dpi, options, dc);
5730 dpi->component_stack = self.parent;
5735 /* Print a Java dentifier. For Java we try to handle encoded extended
5736 Unicode characters. The C++ ABI doesn't mention Unicode encoding,
5737 so we don't it for C++. Characters are encoded as
5741 d_print_java_identifier (struct d_print_info *dpi, const char *name, int len)
5747 for (p = name; p < end; ++p)
5758 for (q = p + 3; q < end; ++q)
5764 else if (*q >= 'A' && *q <= 'F')
5765 dig = *q - 'A' + 10;
5766 else if (*q >= 'a' && *q <= 'f')
5767 dig = *q - 'a' + 10;
5773 /* If the Unicode character is larger than 256, we don't try
5774 to deal with it here. FIXME. */
5775 if (q < end && *q == '_' && c < 256)
5777 d_append_char (dpi, c);
5783 d_append_char (dpi, *p);
5787 /* Print a list of modifiers. SUFFIX is 1 if we are printing
5788 qualifiers on this after printing a function. */
5791 d_print_mod_list (struct d_print_info *dpi, int options,
5792 struct d_print_mod *mods, int suffix)
5794 struct d_print_template *hold_dpt;
5796 if (mods == NULL || d_print_saw_error (dpi))
5801 && (is_fnqual_component_type (mods->mod->type))))
5803 d_print_mod_list (dpi, options, mods->next, suffix);
5809 hold_dpt = dpi->templates;
5810 dpi->templates = mods->templates;
5812 if (mods->mod->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
5814 d_print_function_type (dpi, options, mods->mod, mods->next);
5815 dpi->templates = hold_dpt;
5818 else if (mods->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
5820 d_print_array_type (dpi, options, mods->mod, mods->next);
5821 dpi->templates = hold_dpt;
5824 else if (mods->mod->type == DEMANGLE_COMPONENT_LOCAL_NAME)
5826 struct d_print_mod *hold_modifiers;
5827 struct demangle_component *dc;
5829 /* When this is on the modifier stack, we have pulled any
5830 qualifiers off the right argument already. Otherwise, we
5831 print it as usual, but don't let the left argument see any
5834 hold_modifiers = dpi->modifiers;
5835 dpi->modifiers = NULL;
5836 d_print_comp (dpi, options, d_left (mods->mod));
5837 dpi->modifiers = hold_modifiers;
5839 if ((options & DMGL_JAVA) == 0)
5840 d_append_string (dpi, "::");
5842 d_append_char (dpi, '.');
5844 dc = d_right (mods->mod);
5846 if (dc->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
5848 d_append_string (dpi, "{default arg#");
5849 d_append_num (dpi, dc->u.s_unary_num.num + 1);
5850 d_append_string (dpi, "}::");
5851 dc = dc->u.s_unary_num.sub;
5854 while (is_fnqual_component_type (dc->type))
5857 d_print_comp (dpi, options, dc);
5859 dpi->templates = hold_dpt;
5863 d_print_mod (dpi, options, mods->mod);
5865 dpi->templates = hold_dpt;
5867 d_print_mod_list (dpi, options, mods->next, suffix);
5870 /* Print a modifier. */
5873 d_print_mod (struct d_print_info *dpi, int options,
5874 struct demangle_component *mod)
5878 case DEMANGLE_COMPONENT_RESTRICT:
5879 case DEMANGLE_COMPONENT_RESTRICT_THIS:
5880 d_append_string (dpi, " restrict");
5882 case DEMANGLE_COMPONENT_VOLATILE:
5883 case DEMANGLE_COMPONENT_VOLATILE_THIS:
5884 d_append_string (dpi, " volatile");
5886 case DEMANGLE_COMPONENT_CONST:
5887 case DEMANGLE_COMPONENT_CONST_THIS:
5888 d_append_string (dpi, " const");
5890 case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
5891 d_append_string (dpi, " transaction_safe");
5893 case DEMANGLE_COMPONENT_NOEXCEPT:
5894 d_append_string (dpi, " noexcept");
5897 d_append_char (dpi, '(');
5898 d_print_comp (dpi, options, d_right (mod));
5899 d_append_char (dpi, ')');
5902 case DEMANGLE_COMPONENT_THROW_SPEC:
5903 d_append_string (dpi, " throw");
5906 d_append_char (dpi, '(');
5907 d_print_comp (dpi, options, d_right (mod));
5908 d_append_char (dpi, ')');
5911 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
5912 d_append_char (dpi, ' ');
5913 d_print_comp (dpi, options, d_right (mod));
5915 case DEMANGLE_COMPONENT_POINTER:
5916 /* There is no pointer symbol in Java. */
5917 if ((options & DMGL_JAVA) == 0)
5918 d_append_char (dpi, '*');
5920 case DEMANGLE_COMPONENT_REFERENCE_THIS:
5921 /* For the ref-qualifier, put a space before the &. */
5922 d_append_char (dpi, ' ');
5924 case DEMANGLE_COMPONENT_REFERENCE:
5925 d_append_char (dpi, '&');
5927 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
5928 d_append_char (dpi, ' ');
5930 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5931 d_append_string (dpi, "&&");
5933 case DEMANGLE_COMPONENT_COMPLEX:
5934 d_append_string (dpi, "complex ");
5936 case DEMANGLE_COMPONENT_IMAGINARY:
5937 d_append_string (dpi, "imaginary ");
5939 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
5940 if (d_last_char (dpi) != '(')
5941 d_append_char (dpi, ' ');
5942 d_print_comp (dpi, options, d_left (mod));
5943 d_append_string (dpi, "::*");
5945 case DEMANGLE_COMPONENT_TYPED_NAME:
5946 d_print_comp (dpi, options, d_left (mod));
5948 case DEMANGLE_COMPONENT_VECTOR_TYPE:
5949 d_append_string (dpi, " __vector(");
5950 d_print_comp (dpi, options, d_left (mod));
5951 d_append_char (dpi, ')');
5955 /* Otherwise, we have something that won't go back on the
5956 modifier stack, so we can just print it. */
5957 d_print_comp (dpi, options, mod);
5962 /* Print a function type, except for the return type. */
5965 d_print_function_type (struct d_print_info *dpi, int options,
5966 struct demangle_component *dc,
5967 struct d_print_mod *mods)
5971 struct d_print_mod *p;
5972 struct d_print_mod *hold_modifiers;
5976 for (p = mods; p != NULL; p = p->next)
5981 switch (p->mod->type)
5983 case DEMANGLE_COMPONENT_POINTER:
5984 case DEMANGLE_COMPONENT_REFERENCE:
5985 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
5988 case DEMANGLE_COMPONENT_RESTRICT:
5989 case DEMANGLE_COMPONENT_VOLATILE:
5990 case DEMANGLE_COMPONENT_CONST:
5991 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
5992 case DEMANGLE_COMPONENT_COMPLEX:
5993 case DEMANGLE_COMPONENT_IMAGINARY:
5994 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
5998 FNQUAL_COMPONENT_CASE:
6011 if (d_last_char (dpi) != '('
6012 && d_last_char (dpi) != '*')
6015 if (need_space && d_last_char (dpi) != ' ')
6016 d_append_char (dpi, ' ');
6017 d_append_char (dpi, '(');
6020 hold_modifiers = dpi->modifiers;
6021 dpi->modifiers = NULL;
6023 d_print_mod_list (dpi, options, mods, 0);
6026 d_append_char (dpi, ')');
6028 d_append_char (dpi, '(');
6030 if (d_right (dc) != NULL)
6031 d_print_comp (dpi, options, d_right (dc));
6033 d_append_char (dpi, ')');
6035 d_print_mod_list (dpi, options, mods, 1);
6037 dpi->modifiers = hold_modifiers;
6040 /* Print an array type, except for the element type. */
6043 d_print_array_type (struct d_print_info *dpi, int options,
6044 struct demangle_component *dc,
6045 struct d_print_mod *mods)
6053 struct d_print_mod *p;
6056 for (p = mods; p != NULL; p = p->next)
6060 if (p->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
6075 d_append_string (dpi, " (");
6077 d_print_mod_list (dpi, options, mods, 0);
6080 d_append_char (dpi, ')');
6084 d_append_char (dpi, ' ');
6086 d_append_char (dpi, '[');
6088 if (d_left (dc) != NULL)
6089 d_print_comp (dpi, options, d_left (dc));
6091 d_append_char (dpi, ']');
6094 /* Print an operator in an expression. */
6097 d_print_expr_op (struct d_print_info *dpi, int options,
6098 struct demangle_component *dc)
6100 if (dc->type == DEMANGLE_COMPONENT_OPERATOR)
6101 d_append_buffer (dpi, dc->u.s_operator.op->name,
6102 dc->u.s_operator.op->len);
6104 d_print_comp (dpi, options, dc);
6110 d_print_cast (struct d_print_info *dpi, int options,
6111 struct demangle_component *dc)
6113 d_print_comp (dpi, options, d_left (dc));
6116 /* Print a conversion operator. */
6119 d_print_conversion (struct d_print_info *dpi, int options,
6120 struct demangle_component *dc)
6122 struct d_print_template dpt;
6124 /* For a conversion operator, we need the template parameters from
6125 the enclosing template in scope for processing the type. */
6126 if (dpi->current_template != NULL)
6128 dpt.next = dpi->templates;
6129 dpi->templates = &dpt;
6130 dpt.template_decl = dpi->current_template;
6133 if (d_left (dc)->type != DEMANGLE_COMPONENT_TEMPLATE)
6135 d_print_comp (dpi, options, d_left (dc));
6136 if (dpi->current_template != NULL)
6137 dpi->templates = dpt.next;
6141 d_print_comp (dpi, options, d_left (d_left (dc)));
6143 /* For a templated cast operator, we need to remove the template
6144 parameters from scope after printing the operator name,
6145 so we need to handle the template printing here. */
6146 if (dpi->current_template != NULL)
6147 dpi->templates = dpt.next;
6149 if (d_last_char (dpi) == '<')
6150 d_append_char (dpi, ' ');
6151 d_append_char (dpi, '<');
6152 d_print_comp (dpi, options, d_right (d_left (dc)));
6153 /* Avoid generating two consecutive '>' characters, to avoid
6154 the C++ syntactic ambiguity. */
6155 if (d_last_char (dpi) == '>')
6156 d_append_char (dpi, ' ');
6157 d_append_char (dpi, '>');
6161 /* Initialize the information structure we use to pass around
6164 CP_STATIC_IF_GLIBCPP_V3
6166 cplus_demangle_init_info (const char *mangled, int options, size_t len,
6170 di->send = mangled + len;
6171 di->options = options;
6175 /* We can not need more components than twice the number of chars in
6176 the mangled string. Most components correspond directly to
6177 chars, but the ARGLIST types are exceptions. */
6178 di->num_comps = 2 * len;
6181 /* Similarly, we can not need more substitutions than there are
6182 chars in the mangled string. */
6186 di->last_name = NULL;
6189 di->is_expression = 0;
6190 di->is_conversion = 0;
6193 /* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI
6194 mangled name, return strings in repeated callback giving the demangled
6195 name. OPTIONS is the usual libiberty demangler options. On success,
6196 this returns 1. On failure, returns 0. */
6199 d_demangle_callback (const char *mangled, int options,
6200 demangle_callbackref callback, void *opaque)
6211 struct demangle_component *dc;
6214 if (mangled[0] == '_' && mangled[1] == 'Z')
6216 else if (strncmp (mangled, "_GLOBAL_", 8) == 0
6217 && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$')
6218 && (mangled[9] == 'D' || mangled[9] == 'I')
6219 && mangled[10] == '_')
6220 type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS;
6223 if ((options & DMGL_TYPES) == 0)
6228 cplus_demangle_init_info (mangled, options, strlen (mangled), &di);
6231 #ifdef CP_DYNAMIC_ARRAYS
6232 __extension__ struct demangle_component comps[di.num_comps];
6233 __extension__ struct demangle_component *subs[di.num_subs];
6238 di.comps = alloca (di.num_comps * sizeof (*di.comps));
6239 di.subs = alloca (di.num_subs * sizeof (*di.subs));
6245 dc = cplus_demangle_type (&di);
6248 dc = cplus_demangle_mangled_name (&di, 1);
6250 case DCT_GLOBAL_CTORS:
6251 case DCT_GLOBAL_DTORS:
6252 d_advance (&di, 11);
6253 dc = d_make_comp (&di,
6254 (type == DCT_GLOBAL_CTORS
6255 ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS
6256 : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS),
6257 d_make_demangle_mangled_name (&di, d_str (&di)),
6259 d_advance (&di, strlen (d_str (&di)));
6262 abort (); /* We have listed all the cases. */
6265 /* If DMGL_PARAMS is set, then if we didn't consume the entire
6266 mangled string, then we didn't successfully demangle it. If
6267 DMGL_PARAMS is not set, we didn't look at the trailing
6269 if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0')
6272 #ifdef CP_DEMANGLE_DEBUG
6276 status = (dc != NULL)
6277 ? cplus_demangle_print_callback (options, dc, callback, opaque)
6284 /* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled
6285 name, return a buffer allocated with malloc holding the demangled
6286 name. OPTIONS is the usual libiberty demangler options. On
6287 success, this sets *PALC to the allocated size of the returned
6288 buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for
6289 a memory allocation failure, and returns NULL. */
6292 d_demangle (const char *mangled, int options, size_t *palc)
6294 struct d_growable_string dgs;
6297 d_growable_string_init (&dgs, 0);
6299 status = d_demangle_callback (mangled, options,
6300 d_growable_string_callback_adapter, &dgs);
6308 *palc = dgs.allocation_failure ? 1 : dgs.alc;
6312 #if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
6314 extern char *__cxa_demangle (const char *, char *, size_t *, int *);
6316 /* ia64 ABI-mandated entry point in the C++ runtime library for
6317 performing demangling. MANGLED_NAME is a NUL-terminated character
6318 string containing the name to be demangled.
6320 OUTPUT_BUFFER is a region of memory, allocated with malloc, of
6321 *LENGTH bytes, into which the demangled name is stored. If
6322 OUTPUT_BUFFER is not long enough, it is expanded using realloc.
6323 OUTPUT_BUFFER may instead be NULL; in that case, the demangled name
6324 is placed in a region of memory allocated with malloc.
6326 If LENGTH is non-NULL, the length of the buffer containing the
6327 demangled name, is placed in *LENGTH.
6329 The return value is a pointer to the start of the NUL-terminated
6330 demangled name, or NULL if the demangling fails. The caller is
6331 responsible for deallocating this memory using free.
6333 *STATUS is set to one of the following values:
6334 0: The demangling operation succeeded.
6335 -1: A memory allocation failure occurred.
6336 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
6337 -3: One of the arguments is invalid.
6339 The demangling is performed using the C++ ABI mangling rules, with
6343 __cxa_demangle (const char *mangled_name, char *output_buffer,
6344 size_t *length, int *status)
6349 if (mangled_name == NULL)
6356 if (output_buffer != NULL && length == NULL)
6363 demangled = d_demangle (mangled_name, DMGL_PARAMS | DMGL_TYPES, &alc);
6365 if (demangled == NULL)
6377 if (output_buffer == NULL)
6384 if (strlen (demangled) < *length)
6386 strcpy (output_buffer, demangled);
6388 demangled = output_buffer;
6392 free (output_buffer);
6403 extern int __gcclibcxx_demangle_callback (const char *,
6405 (const char *, size_t, void *),
6408 /* Alternative, allocationless entry point in the C++ runtime library
6409 for performing demangling. MANGLED_NAME is a NUL-terminated character
6410 string containing the name to be demangled.
6412 CALLBACK is a callback function, called with demangled string
6413 segments as demangling progresses; it is called at least once,
6414 but may be called more than once. OPAQUE is a generalized pointer
6415 used as a callback argument.
6417 The return code is one of the following values, equivalent to
6418 the STATUS values of __cxa_demangle() (excluding -1, since this
6419 function performs no memory allocations):
6420 0: The demangling operation succeeded.
6421 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
6422 -3: One of the arguments is invalid.
6424 The demangling is performed using the C++ ABI mangling rules, with
6428 __gcclibcxx_demangle_callback (const char *mangled_name,
6429 void (*callback) (const char *, size_t, void *),
6434 if (mangled_name == NULL || callback == NULL)
6437 status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES,
6445 #else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */
6447 /* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI
6448 mangled name, return a buffer allocated with malloc holding the
6449 demangled name. Otherwise, return NULL. */
6452 cplus_demangle_v3 (const char *mangled, int options)
6456 return d_demangle (mangled, options, &alc);
6460 cplus_demangle_v3_callback (const char *mangled, int options,
6461 demangle_callbackref callback, void *opaque)
6463 return d_demangle_callback (mangled, options, callback, opaque);
6466 /* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling
6467 conventions, but the output formatting is a little different.
6468 This instructs the C++ demangler not to emit pointer characters ("*"), to
6469 use Java's namespace separator symbol ("." instead of "::"), and to output
6470 JArray<TYPE> as TYPE[]. */
6473 java_demangle_v3 (const char *mangled)
6477 return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, &alc);
6481 java_demangle_v3_callback (const char *mangled,
6482 demangle_callbackref callback, void *opaque)
6484 return d_demangle_callback (mangled,
6485 DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX,
6489 #endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */
6491 #ifndef IN_GLIBCPP_V3
6493 /* Demangle a string in order to find out whether it is a constructor
6494 or destructor. Return non-zero on success. Set *CTOR_KIND and
6495 *DTOR_KIND appropriately. */
6498 is_ctor_or_dtor (const char *mangled,
6499 enum gnu_v3_ctor_kinds *ctor_kind,
6500 enum gnu_v3_dtor_kinds *dtor_kind)
6503 struct demangle_component *dc;
6506 *ctor_kind = (enum gnu_v3_ctor_kinds) 0;
6507 *dtor_kind = (enum gnu_v3_dtor_kinds) 0;
6509 cplus_demangle_init_info (mangled, DMGL_GNU_V3, strlen (mangled), &di);
6512 #ifdef CP_DYNAMIC_ARRAYS
6513 __extension__ struct demangle_component comps[di.num_comps];
6514 __extension__ struct demangle_component *subs[di.num_subs];
6519 di.comps = alloca (di.num_comps * sizeof (*di.comps));
6520 di.subs = alloca (di.num_subs * sizeof (*di.subs));
6523 dc = cplus_demangle_mangled_name (&di, 1);
6525 /* Note that because we did not pass DMGL_PARAMS, we don't expect
6526 to demangle the entire string. */
6533 /* These cannot appear on a constructor or destructor. */
6534 case DEMANGLE_COMPONENT_RESTRICT_THIS:
6535 case DEMANGLE_COMPONENT_VOLATILE_THIS:
6536 case DEMANGLE_COMPONENT_CONST_THIS:
6537 case DEMANGLE_COMPONENT_REFERENCE_THIS:
6538 case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
6542 case DEMANGLE_COMPONENT_TYPED_NAME:
6543 case DEMANGLE_COMPONENT_TEMPLATE:
6546 case DEMANGLE_COMPONENT_QUAL_NAME:
6547 case DEMANGLE_COMPONENT_LOCAL_NAME:
6550 case DEMANGLE_COMPONENT_CTOR:
6551 *ctor_kind = dc->u.s_ctor.kind;
6555 case DEMANGLE_COMPONENT_DTOR:
6556 *dtor_kind = dc->u.s_dtor.kind;
6567 /* Return whether NAME is the mangled form of a g++ V3 ABI constructor
6568 name. A non-zero return indicates the type of constructor. */
6570 enum gnu_v3_ctor_kinds
6571 is_gnu_v3_mangled_ctor (const char *name)
6573 enum gnu_v3_ctor_kinds ctor_kind;
6574 enum gnu_v3_dtor_kinds dtor_kind;
6576 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
6577 return (enum gnu_v3_ctor_kinds) 0;
6582 /* Return whether NAME is the mangled form of a g++ V3 ABI destructor
6583 name. A non-zero return indicates the type of destructor. */
6585 enum gnu_v3_dtor_kinds
6586 is_gnu_v3_mangled_dtor (const char *name)
6588 enum gnu_v3_ctor_kinds ctor_kind;
6589 enum gnu_v3_dtor_kinds dtor_kind;
6591 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
6592 return (enum gnu_v3_dtor_kinds) 0;
6596 #endif /* IN_GLIBCPP_V3 */
6598 #ifdef STANDALONE_DEMANGLER
6601 #include "dyn-string.h"
6603 static void print_usage (FILE* fp, int exit_value);
6605 #define IS_ALPHA(CHAR) \
6606 (((CHAR) >= 'a' && (CHAR) <= 'z') \
6607 || ((CHAR) >= 'A' && (CHAR) <= 'Z'))
6609 /* Non-zero if CHAR is a character than can occur in a mangled name. */
6610 #define is_mangled_char(CHAR) \
6611 (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \
6612 || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$')
6614 /* The name of this program, as invoked. */
6615 const char* program_name;
6617 /* Prints usage summary to FP and then exits with EXIT_VALUE. */
6620 print_usage (FILE* fp, int exit_value)
6622 fprintf (fp, "Usage: %s [options] [names ...]\n", program_name);
6623 fprintf (fp, "Options:\n");
6624 fprintf (fp, " -h,--help Display this message.\n");
6625 fprintf (fp, " -p,--no-params Don't display function parameters\n");
6626 fprintf (fp, " -v,--verbose Produce verbose demanglings.\n");
6627 fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n");
6632 /* Option specification for getopt_long. */
6633 static const struct option long_options[] =
6635 { "help", no_argument, NULL, 'h' },
6636 { "no-params", no_argument, NULL, 'p' },
6637 { "verbose", no_argument, NULL, 'v' },
6638 { NULL, no_argument, NULL, 0 },
6641 /* Main entry for a demangling filter executable. It will demangle
6642 its command line arguments, if any. If none are provided, it will
6643 filter stdin to stdout, replacing any recognized mangled C++ names
6644 with their demangled equivalents. */
6647 main (int argc, char *argv[])
6651 int options = DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES;
6653 /* Use the program name of this program, as invoked. */
6654 program_name = argv[0];
6656 /* Parse options. */
6659 opt_char = getopt_long (argc, argv, "hpv", long_options, NULL);
6662 case '?': /* Unrecognized option. */
6663 print_usage (stderr, 1);
6667 print_usage (stdout, 0);
6671 options &= ~ DMGL_PARAMS;
6675 options |= DMGL_VERBOSE;
6679 while (opt_char != -1);
6682 /* No command line arguments were provided. Filter stdin. */
6684 dyn_string_t mangled = dyn_string_new (3);
6687 /* Read all of input. */
6688 while (!feof (stdin))
6692 /* Pile characters into mangled until we hit one that can't
6693 occur in a mangled name. */
6695 while (!feof (stdin) && is_mangled_char (c))
6697 dyn_string_append_char (mangled, c);
6703 if (dyn_string_length (mangled) > 0)
6705 #ifdef IN_GLIBCPP_V3
6706 s = __cxa_demangle (dyn_string_buf (mangled), NULL, NULL, NULL);
6708 s = cplus_demangle_v3 (dyn_string_buf (mangled), options);
6718 /* It might not have been a mangled name. Print the
6720 fputs (dyn_string_buf (mangled), stdout);
6723 dyn_string_clear (mangled);
6726 /* If we haven't hit EOF yet, we've read one character that
6727 can't occur in a mangled name, so print it out. */
6732 dyn_string_delete (mangled);
6735 /* Demangle command line arguments. */
6737 /* Loop over command line arguments. */
6738 for (i = optind; i < argc; ++i)
6741 #ifdef IN_GLIBCPP_V3
6745 /* Attempt to demangle. */
6746 #ifdef IN_GLIBCPP_V3
6747 s = __cxa_demangle (argv[i], NULL, NULL, &status);
6749 s = cplus_demangle_v3 (argv[i], options);
6752 /* If it worked, print the demangled name. */
6760 #ifdef IN_GLIBCPP_V3
6761 fprintf (stderr, "Failed: %s (status %d)\n", argv[i], status);
6763 fprintf (stderr, "Failed: %s\n", argv[i]);
6772 #endif /* STANDALONE_DEMANGLER */