1 /* Demangler for g++ V3 ABI.
2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
3 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor <ian@wasabisystems.com>.
6 This file is part of the libiberty library, which is part of GCC.
8 This file is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 In addition to the permissions in the GNU General Public License, the
14 Free Software Foundation gives you unlimited permission to link the
15 compiled version of this file into combinations with other programs,
16 and to distribute those combinations without any restriction coming
17 from the use of this file. (The General Public License restrictions
18 do apply in other respects; for example, they cover modification of
19 the file, and distribution when not linked into a combined
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
32 /* This code implements a demangler for the g++ V3 ABI. The ABI is
33 described on this web page:
34 http://www.codesourcery.com/cxx-abi/abi.html#mangling
36 This code was written while looking at the demangler written by
37 Alex Samuel <samuel@codesourcery.com>.
39 This code first pulls the mangled name apart into a list of
40 components, and then walks the list generating the demangled
43 This file will normally define the following functions, q.v.:
44 char *cplus_demangle_v3(const char *mangled, int options)
45 char *java_demangle_v3(const char *mangled)
46 int cplus_demangle_v3_callback(const char *mangled, int options,
47 demangle_callbackref callback)
48 int java_demangle_v3_callback(const char *mangled,
49 demangle_callbackref callback)
50 enum gnu_v3_ctor_kinds is_gnu_v3_mangled_ctor (const char *name)
51 enum gnu_v3_dtor_kinds is_gnu_v3_mangled_dtor (const char *name)
53 Also, the interface to the component list is public, and defined in
54 demangle.h. The interface consists of these types, which are
55 defined in demangle.h:
56 enum demangle_component_type
57 struct demangle_component
59 and these functions defined in this file:
60 cplus_demangle_fill_name
61 cplus_demangle_fill_extended_operator
62 cplus_demangle_fill_ctor
63 cplus_demangle_fill_dtor
65 cplus_demangle_print_callback
66 and other functions defined in the file cp-demint.c.
68 This file also defines some other functions and variables which are
69 only to be used by the file cp-demint.c.
71 Preprocessor macros you can define while compiling this file:
74 If defined, this file defines the following functions, q.v.:
75 char *__cxa_demangle (const char *mangled, char *buf, size_t *len,
77 int __gcclibcxx_demangle_callback (const char *,
79 (const char *, size_t, void *),
81 instead of cplus_demangle_v3[_callback]() and
82 java_demangle_v3[_callback]().
85 If defined, this file defines only __cxa_demangle() and
86 __gcclibcxx_demangle_callback(), and no other publically visible
87 functions or variables.
90 If defined, this file defines a main() function which demangles
91 any arguments, or, if none, demangles stdin.
94 If defined, turns on debugging mode, which prints information on
95 stdout about the mangled string. This is not generally useful.
98 #if defined (_AIX) && !defined (__GNUC__)
120 # define alloca __builtin_alloca
122 extern char *alloca ();
123 # endif /* __GNUC__ */
125 #endif /* HAVE_ALLOCA_H */
127 #include "ansidecl.h"
128 #include "libiberty.h"
129 #include "demangle.h"
130 #include "cp-demangle.h"
132 /* If IN_GLIBCPP_V3 is defined, some functions are made static. We
133 also rename them via #define to avoid compiler errors when the
134 static definition conflicts with the extern declaration in a header
138 #define CP_STATIC_IF_GLIBCPP_V3 static
140 #define cplus_demangle_fill_name d_fill_name
141 static int d_fill_name (struct demangle_component *, const char *, int);
143 #define cplus_demangle_fill_extended_operator d_fill_extended_operator
145 d_fill_extended_operator (struct demangle_component *, int,
146 struct demangle_component *);
148 #define cplus_demangle_fill_ctor d_fill_ctor
150 d_fill_ctor (struct demangle_component *, enum gnu_v3_ctor_kinds,
151 struct demangle_component *);
153 #define cplus_demangle_fill_dtor d_fill_dtor
155 d_fill_dtor (struct demangle_component *, enum gnu_v3_dtor_kinds,
156 struct demangle_component *);
158 #define cplus_demangle_mangled_name d_mangled_name
159 static struct demangle_component *d_mangled_name (struct d_info *, int);
161 #define cplus_demangle_type d_type
162 static struct demangle_component *d_type (struct d_info *);
164 #define cplus_demangle_print d_print
165 static char *d_print (int, const struct demangle_component *, int, size_t *);
167 #define cplus_demangle_print_callback d_print_callback
168 static int d_print_callback (int, const struct demangle_component *,
169 demangle_callbackref, void *);
171 #define cplus_demangle_init_info d_init_info
172 static void d_init_info (const char *, int, size_t, struct d_info *);
174 #else /* ! defined(IN_GLIBCPP_V3) */
175 #define CP_STATIC_IF_GLIBCPP_V3
176 #endif /* ! defined(IN_GLIBCPP_V3) */
178 /* See if the compiler supports dynamic arrays. */
181 #define CP_DYNAMIC_ARRAYS
184 #ifdef __STDC_VERSION__
185 #if __STDC_VERSION__ >= 199901L
186 #define CP_DYNAMIC_ARRAYS
187 #endif /* __STDC__VERSION >= 199901L */
188 #endif /* defined (__STDC_VERSION__) */
189 #endif /* defined (__STDC__) */
190 #endif /* ! defined (__GNUC__) */
192 /* We avoid pulling in the ctype tables, to prevent pulling in
193 additional unresolved symbols when this code is used in a library.
194 FIXME: Is this really a valid reason? This comes from the original
197 As of this writing this file has the following undefined references
198 when compiled with -DIN_GLIBCPP_V3: realloc, free, memcpy, strcpy,
201 #define IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
202 #define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z')
203 #define IS_LOWER(c) ((c) >= 'a' && (c) <= 'z')
205 /* The prefix prepended by GCC to an identifier represnting the
206 anonymous namespace. */
207 #define ANONYMOUS_NAMESPACE_PREFIX "_GLOBAL_"
208 #define ANONYMOUS_NAMESPACE_PREFIX_LEN \
209 (sizeof (ANONYMOUS_NAMESPACE_PREFIX) - 1)
211 /* Information we keep for the standard substitutions. */
213 struct d_standard_sub_info
215 /* The code for this substitution. */
217 /* The simple string it expands to. */
218 const char *simple_expansion;
219 /* The length of the simple expansion. */
221 /* The results of a full, verbose, expansion. This is used when
222 qualifying a constructor/destructor, or when in verbose mode. */
223 const char *full_expansion;
224 /* The length of the full expansion. */
226 /* What to set the last_name field of d_info to; NULL if we should
227 not set it. This is only relevant when qualifying a
228 constructor/destructor. */
229 const char *set_last_name;
230 /* The length of set_last_name. */
231 int set_last_name_len;
234 /* Accessors for subtrees of struct demangle_component. */
236 #define d_left(dc) ((dc)->u.s_binary.left)
237 #define d_right(dc) ((dc)->u.s_binary.right)
239 /* A list of templates. This is used while printing. */
241 struct d_print_template
243 /* Next template on the list. */
244 struct d_print_template *next;
246 const struct demangle_component *template_decl;
249 /* A list of type modifiers. This is used while printing. */
253 /* Next modifier on the list. These are in the reverse of the order
254 in which they appeared in the mangled string. */
255 struct d_print_mod *next;
257 const struct demangle_component *mod;
258 /* Whether this modifier was printed. */
260 /* The list of templates which applies to this modifier. */
261 struct d_print_template *templates;
264 /* We use these structures to hold information during printing. */
266 struct d_growable_string
268 /* Buffer holding the result. */
270 /* Current length of data in buffer. */
272 /* Allocated size of buffer. */
274 /* Set to 1 if we had a memory allocation failure. */
275 int allocation_failure;
278 enum { D_PRINT_BUFFER_LENGTH = 256 };
281 /* Fixed-length allocated buffer for demangled data, flushed to the
282 callback with a NUL termination once full. */
283 char buf[D_PRINT_BUFFER_LENGTH];
284 /* Current length of data in buffer. */
286 /* The last character printed, saved individually so that it survives
289 /* Callback function to handle demangled buffer flush. */
290 demangle_callbackref callback;
291 /* Opaque callback argument. */
293 /* The current list of templates, if any. */
294 struct d_print_template *templates;
295 /* The current list of modifiers (e.g., pointer, reference, etc.),
297 struct d_print_mod *modifiers;
298 /* Set to 1 if we saw a demangling error. */
299 int demangle_failure;
300 /* The current index into any template argument packs we are using
303 /* Number of d_print_flush calls so far. */
304 unsigned long int flush_count;
307 #ifdef CP_DEMANGLE_DEBUG
308 static void d_dump (struct demangle_component *, int);
311 static struct demangle_component *
312 d_make_empty (struct d_info *);
314 static struct demangle_component *
315 d_make_comp (struct d_info *, enum demangle_component_type,
316 struct demangle_component *,
317 struct demangle_component *);
319 static struct demangle_component *
320 d_make_name (struct d_info *, const char *, int);
322 static struct demangle_component *
323 d_make_demangle_mangled_name (struct d_info *, const char *);
325 static struct demangle_component *
326 d_make_builtin_type (struct d_info *,
327 const struct demangle_builtin_type_info *);
329 static struct demangle_component *
330 d_make_operator (struct d_info *,
331 const struct demangle_operator_info *);
333 static struct demangle_component *
334 d_make_extended_operator (struct d_info *, int,
335 struct demangle_component *);
337 static struct demangle_component *
338 d_make_ctor (struct d_info *, enum gnu_v3_ctor_kinds,
339 struct demangle_component *);
341 static struct demangle_component *
342 d_make_dtor (struct d_info *, enum gnu_v3_dtor_kinds,
343 struct demangle_component *);
345 static struct demangle_component *
346 d_make_template_param (struct d_info *, long);
348 static struct demangle_component *
349 d_make_sub (struct d_info *, const char *, int);
352 has_return_type (struct demangle_component *);
355 is_ctor_dtor_or_conversion (struct demangle_component *);
357 static struct demangle_component *d_encoding (struct d_info *, int);
359 static struct demangle_component *d_name (struct d_info *);
361 static struct demangle_component *d_nested_name (struct d_info *);
363 static struct demangle_component *d_prefix (struct d_info *);
365 static struct demangle_component *d_unqualified_name (struct d_info *);
367 static struct demangle_component *d_source_name (struct d_info *);
369 static long d_number (struct d_info *);
371 static struct demangle_component *d_identifier (struct d_info *, int);
373 static struct demangle_component *d_operator_name (struct d_info *);
375 static struct demangle_component *d_special_name (struct d_info *);
377 static int d_call_offset (struct d_info *, int);
379 static struct demangle_component *d_ctor_dtor_name (struct d_info *);
381 static struct demangle_component **
382 d_cv_qualifiers (struct d_info *, struct demangle_component **, int);
384 static struct demangle_component *
385 d_function_type (struct d_info *);
387 static struct demangle_component *
388 d_bare_function_type (struct d_info *, int);
390 static struct demangle_component *
391 d_class_enum_type (struct d_info *);
393 static struct demangle_component *d_array_type (struct d_info *);
395 static struct demangle_component *d_vector_type (struct d_info *);
397 static struct demangle_component *
398 d_pointer_to_member_type (struct d_info *);
400 static struct demangle_component *
401 d_template_param (struct d_info *);
403 static struct demangle_component *d_template_args (struct d_info *);
405 static struct demangle_component *
406 d_template_arg (struct d_info *);
408 static struct demangle_component *d_expression (struct d_info *);
410 static struct demangle_component *d_expr_primary (struct d_info *);
412 static struct demangle_component *d_local_name (struct d_info *);
414 static int d_discriminator (struct d_info *);
416 static struct demangle_component *d_lambda (struct d_info *);
418 static struct demangle_component *d_unnamed_type (struct d_info *);
420 static struct demangle_component *
421 d_clone_suffix (struct d_info *, struct demangle_component *);
424 d_add_substitution (struct d_info *, struct demangle_component *);
426 static struct demangle_component *d_substitution (struct d_info *, int);
428 static void d_growable_string_init (struct d_growable_string *, size_t);
431 d_growable_string_resize (struct d_growable_string *, size_t);
434 d_growable_string_append_buffer (struct d_growable_string *,
435 const char *, size_t);
437 d_growable_string_callback_adapter (const char *, size_t, void *);
440 d_print_init (struct d_print_info *, demangle_callbackref, void *);
442 static inline void d_print_error (struct d_print_info *);
444 static inline int d_print_saw_error (struct d_print_info *);
446 static inline void d_print_flush (struct d_print_info *);
448 static inline void d_append_char (struct d_print_info *, char);
450 static inline void d_append_buffer (struct d_print_info *,
451 const char *, size_t);
453 static inline void d_append_string (struct d_print_info *, const char *);
455 static inline char d_last_char (struct d_print_info *);
458 d_print_comp (struct d_print_info *, int, const struct demangle_component *);
461 d_print_java_identifier (struct d_print_info *, const char *, int);
464 d_print_mod_list (struct d_print_info *, int, struct d_print_mod *, int);
467 d_print_mod (struct d_print_info *, int, const struct demangle_component *);
470 d_print_function_type (struct d_print_info *, int,
471 const struct demangle_component *,
472 struct d_print_mod *);
475 d_print_array_type (struct d_print_info *, int,
476 const struct demangle_component *,
477 struct d_print_mod *);
480 d_print_expr_op (struct d_print_info *, int, const struct demangle_component *);
483 d_print_cast (struct d_print_info *, int, const struct demangle_component *);
485 static int d_demangle_callback (const char *, int,
486 demangle_callbackref, void *);
487 static char *d_demangle (const char *, int, size_t *);
489 #ifdef CP_DEMANGLE_DEBUG
492 d_dump (struct demangle_component *dc, int indent)
499 printf ("failed demangling\n");
503 for (i = 0; i < indent; ++i)
508 case DEMANGLE_COMPONENT_NAME:
509 printf ("name '%.*s'\n", dc->u.s_name.len, dc->u.s_name.s);
511 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
512 printf ("template parameter %ld\n", dc->u.s_number.number);
514 case DEMANGLE_COMPONENT_CTOR:
515 printf ("constructor %d\n", (int) dc->u.s_ctor.kind);
516 d_dump (dc->u.s_ctor.name, indent + 2);
518 case DEMANGLE_COMPONENT_DTOR:
519 printf ("destructor %d\n", (int) dc->u.s_dtor.kind);
520 d_dump (dc->u.s_dtor.name, indent + 2);
522 case DEMANGLE_COMPONENT_SUB_STD:
523 printf ("standard substitution %s\n", dc->u.s_string.string);
525 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
526 printf ("builtin type %s\n", dc->u.s_builtin.type->name);
528 case DEMANGLE_COMPONENT_OPERATOR:
529 printf ("operator %s\n", dc->u.s_operator.op->name);
531 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
532 printf ("extended operator with %d args\n",
533 dc->u.s_extended_operator.args);
534 d_dump (dc->u.s_extended_operator.name, indent + 2);
537 case DEMANGLE_COMPONENT_QUAL_NAME:
538 printf ("qualified name\n");
540 case DEMANGLE_COMPONENT_LOCAL_NAME:
541 printf ("local name\n");
543 case DEMANGLE_COMPONENT_TYPED_NAME:
544 printf ("typed name\n");
546 case DEMANGLE_COMPONENT_TEMPLATE:
547 printf ("template\n");
549 case DEMANGLE_COMPONENT_VTABLE:
552 case DEMANGLE_COMPONENT_VTT:
555 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
556 printf ("construction vtable\n");
558 case DEMANGLE_COMPONENT_TYPEINFO:
559 printf ("typeinfo\n");
561 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
562 printf ("typeinfo name\n");
564 case DEMANGLE_COMPONENT_TYPEINFO_FN:
565 printf ("typeinfo function\n");
567 case DEMANGLE_COMPONENT_THUNK:
570 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
571 printf ("virtual thunk\n");
573 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
574 printf ("covariant thunk\n");
576 case DEMANGLE_COMPONENT_JAVA_CLASS:
577 printf ("java class\n");
579 case DEMANGLE_COMPONENT_GUARD:
582 case DEMANGLE_COMPONENT_REFTEMP:
583 printf ("reference temporary\n");
585 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
586 printf ("hidden alias\n");
588 case DEMANGLE_COMPONENT_RESTRICT:
589 printf ("restrict\n");
591 case DEMANGLE_COMPONENT_VOLATILE:
592 printf ("volatile\n");
594 case DEMANGLE_COMPONENT_CONST:
597 case DEMANGLE_COMPONENT_RESTRICT_THIS:
598 printf ("restrict this\n");
600 case DEMANGLE_COMPONENT_VOLATILE_THIS:
601 printf ("volatile this\n");
603 case DEMANGLE_COMPONENT_CONST_THIS:
604 printf ("const this\n");
606 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
607 printf ("vendor type qualifier\n");
609 case DEMANGLE_COMPONENT_POINTER:
610 printf ("pointer\n");
612 case DEMANGLE_COMPONENT_REFERENCE:
613 printf ("reference\n");
615 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
616 printf ("rvalue reference\n");
618 case DEMANGLE_COMPONENT_COMPLEX:
619 printf ("complex\n");
621 case DEMANGLE_COMPONENT_IMAGINARY:
622 printf ("imaginary\n");
624 case DEMANGLE_COMPONENT_VENDOR_TYPE:
625 printf ("vendor type\n");
627 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
628 printf ("function type\n");
630 case DEMANGLE_COMPONENT_ARRAY_TYPE:
631 printf ("array type\n");
633 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
634 printf ("pointer to member type\n");
636 case DEMANGLE_COMPONENT_FIXED_TYPE:
637 printf ("fixed-point type\n");
639 case DEMANGLE_COMPONENT_ARGLIST:
640 printf ("argument list\n");
642 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
643 printf ("template argument list\n");
645 case DEMANGLE_COMPONENT_CAST:
648 case DEMANGLE_COMPONENT_UNARY:
649 printf ("unary operator\n");
651 case DEMANGLE_COMPONENT_BINARY:
652 printf ("binary operator\n");
654 case DEMANGLE_COMPONENT_BINARY_ARGS:
655 printf ("binary operator arguments\n");
657 case DEMANGLE_COMPONENT_TRINARY:
658 printf ("trinary operator\n");
660 case DEMANGLE_COMPONENT_TRINARY_ARG1:
661 printf ("trinary operator arguments 1\n");
663 case DEMANGLE_COMPONENT_TRINARY_ARG2:
664 printf ("trinary operator arguments 1\n");
666 case DEMANGLE_COMPONENT_LITERAL:
667 printf ("literal\n");
669 case DEMANGLE_COMPONENT_LITERAL_NEG:
670 printf ("negative literal\n");
672 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
673 printf ("java resource\n");
675 case DEMANGLE_COMPONENT_COMPOUND_NAME:
676 printf ("compound name\n");
678 case DEMANGLE_COMPONENT_CHARACTER:
679 printf ("character '%c'\n", dc->u.s_character.character);
681 case DEMANGLE_COMPONENT_DECLTYPE:
682 printf ("decltype\n");
684 case DEMANGLE_COMPONENT_PACK_EXPANSION:
685 printf ("pack expansion\n");
689 d_dump (d_left (dc), indent + 2);
690 d_dump (d_right (dc), indent + 2);
693 #endif /* CP_DEMANGLE_DEBUG */
695 /* Fill in a DEMANGLE_COMPONENT_NAME. */
697 CP_STATIC_IF_GLIBCPP_V3
699 cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
701 if (p == NULL || s == NULL || len == 0)
703 p->type = DEMANGLE_COMPONENT_NAME;
705 p->u.s_name.len = len;
709 /* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
711 CP_STATIC_IF_GLIBCPP_V3
713 cplus_demangle_fill_extended_operator (struct demangle_component *p, int args,
714 struct demangle_component *name)
716 if (p == NULL || args < 0 || name == NULL)
718 p->type = DEMANGLE_COMPONENT_EXTENDED_OPERATOR;
719 p->u.s_extended_operator.args = args;
720 p->u.s_extended_operator.name = name;
724 /* Fill in a DEMANGLE_COMPONENT_CTOR. */
726 CP_STATIC_IF_GLIBCPP_V3
728 cplus_demangle_fill_ctor (struct demangle_component *p,
729 enum gnu_v3_ctor_kinds kind,
730 struct demangle_component *name)
734 || (int) kind < gnu_v3_complete_object_ctor
735 || (int) kind > gnu_v3_complete_object_allocating_ctor)
737 p->type = DEMANGLE_COMPONENT_CTOR;
738 p->u.s_ctor.kind = kind;
739 p->u.s_ctor.name = name;
743 /* Fill in a DEMANGLE_COMPONENT_DTOR. */
745 CP_STATIC_IF_GLIBCPP_V3
747 cplus_demangle_fill_dtor (struct demangle_component *p,
748 enum gnu_v3_dtor_kinds kind,
749 struct demangle_component *name)
753 || (int) kind < gnu_v3_deleting_dtor
754 || (int) kind > gnu_v3_base_object_dtor)
756 p->type = DEMANGLE_COMPONENT_DTOR;
757 p->u.s_dtor.kind = kind;
758 p->u.s_dtor.name = name;
762 /* Add a new component. */
764 static struct demangle_component *
765 d_make_empty (struct d_info *di)
767 struct demangle_component *p;
769 if (di->next_comp >= di->num_comps)
771 p = &di->comps[di->next_comp];
776 /* Add a new generic component. */
778 static struct demangle_component *
779 d_make_comp (struct d_info *di, enum demangle_component_type type,
780 struct demangle_component *left,
781 struct demangle_component *right)
783 struct demangle_component *p;
785 /* We check for errors here. A typical error would be a NULL return
786 from a subroutine. We catch those here, and return NULL
790 /* These types require two parameters. */
791 case DEMANGLE_COMPONENT_QUAL_NAME:
792 case DEMANGLE_COMPONENT_LOCAL_NAME:
793 case DEMANGLE_COMPONENT_TYPED_NAME:
794 case DEMANGLE_COMPONENT_TEMPLATE:
795 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
796 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
797 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
798 case DEMANGLE_COMPONENT_UNARY:
799 case DEMANGLE_COMPONENT_BINARY:
800 case DEMANGLE_COMPONENT_BINARY_ARGS:
801 case DEMANGLE_COMPONENT_TRINARY:
802 case DEMANGLE_COMPONENT_TRINARY_ARG1:
803 case DEMANGLE_COMPONENT_TRINARY_ARG2:
804 case DEMANGLE_COMPONENT_LITERAL:
805 case DEMANGLE_COMPONENT_LITERAL_NEG:
806 case DEMANGLE_COMPONENT_COMPOUND_NAME:
807 case DEMANGLE_COMPONENT_VECTOR_TYPE:
808 case DEMANGLE_COMPONENT_CLONE:
809 if (left == NULL || right == NULL)
813 /* These types only require one parameter. */
814 case DEMANGLE_COMPONENT_VTABLE:
815 case DEMANGLE_COMPONENT_VTT:
816 case DEMANGLE_COMPONENT_TYPEINFO:
817 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
818 case DEMANGLE_COMPONENT_TYPEINFO_FN:
819 case DEMANGLE_COMPONENT_THUNK:
820 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
821 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
822 case DEMANGLE_COMPONENT_JAVA_CLASS:
823 case DEMANGLE_COMPONENT_GUARD:
824 case DEMANGLE_COMPONENT_REFTEMP:
825 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
826 case DEMANGLE_COMPONENT_POINTER:
827 case DEMANGLE_COMPONENT_REFERENCE:
828 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
829 case DEMANGLE_COMPONENT_COMPLEX:
830 case DEMANGLE_COMPONENT_IMAGINARY:
831 case DEMANGLE_COMPONENT_VENDOR_TYPE:
832 case DEMANGLE_COMPONENT_CAST:
833 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
834 case DEMANGLE_COMPONENT_DECLTYPE:
835 case DEMANGLE_COMPONENT_PACK_EXPANSION:
836 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
837 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
842 /* This needs a right parameter, but the left parameter can be
844 case DEMANGLE_COMPONENT_ARRAY_TYPE:
849 /* These are allowed to have no parameters--in some cases they
850 will be filled in later. */
851 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
852 case DEMANGLE_COMPONENT_RESTRICT:
853 case DEMANGLE_COMPONENT_VOLATILE:
854 case DEMANGLE_COMPONENT_CONST:
855 case DEMANGLE_COMPONENT_RESTRICT_THIS:
856 case DEMANGLE_COMPONENT_VOLATILE_THIS:
857 case DEMANGLE_COMPONENT_CONST_THIS:
858 case DEMANGLE_COMPONENT_ARGLIST:
859 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
862 /* Other types should not be seen here. */
867 p = d_make_empty (di);
871 p->u.s_binary.left = left;
872 p->u.s_binary.right = right;
877 /* Add a new demangle mangled name component. */
879 static struct demangle_component *
880 d_make_demangle_mangled_name (struct d_info *di, const char *s)
882 if (d_peek_char (di) != '_' || d_peek_next_char (di) != 'Z')
883 return d_make_name (di, s, strlen (s));
885 return d_encoding (di, 0);
888 /* Add a new name component. */
890 static struct demangle_component *
891 d_make_name (struct d_info *di, const char *s, int len)
893 struct demangle_component *p;
895 p = d_make_empty (di);
896 if (! cplus_demangle_fill_name (p, s, len))
901 /* Add a new builtin type component. */
903 static struct demangle_component *
904 d_make_builtin_type (struct d_info *di,
905 const struct demangle_builtin_type_info *type)
907 struct demangle_component *p;
911 p = d_make_empty (di);
914 p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
915 p->u.s_builtin.type = type;
920 /* Add a new operator component. */
922 static struct demangle_component *
923 d_make_operator (struct d_info *di, const struct demangle_operator_info *op)
925 struct demangle_component *p;
927 p = d_make_empty (di);
930 p->type = DEMANGLE_COMPONENT_OPERATOR;
931 p->u.s_operator.op = op;
936 /* Add a new extended operator component. */
938 static struct demangle_component *
939 d_make_extended_operator (struct d_info *di, int args,
940 struct demangle_component *name)
942 struct demangle_component *p;
944 p = d_make_empty (di);
945 if (! cplus_demangle_fill_extended_operator (p, args, name))
950 static struct demangle_component *
951 d_make_default_arg (struct d_info *di, int num,
952 struct demangle_component *sub)
954 struct demangle_component *p = d_make_empty (di);
957 p->type = DEMANGLE_COMPONENT_DEFAULT_ARG;
958 p->u.s_unary_num.num = num;
959 p->u.s_unary_num.sub = sub;
964 /* Add a new constructor component. */
966 static struct demangle_component *
967 d_make_ctor (struct d_info *di, enum gnu_v3_ctor_kinds kind,
968 struct demangle_component *name)
970 struct demangle_component *p;
972 p = d_make_empty (di);
973 if (! cplus_demangle_fill_ctor (p, kind, name))
978 /* Add a new destructor component. */
980 static struct demangle_component *
981 d_make_dtor (struct d_info *di, enum gnu_v3_dtor_kinds kind,
982 struct demangle_component *name)
984 struct demangle_component *p;
986 p = d_make_empty (di);
987 if (! cplus_demangle_fill_dtor (p, kind, name))
992 /* Add a new template parameter. */
994 static struct demangle_component *
995 d_make_template_param (struct d_info *di, long i)
997 struct demangle_component *p;
999 p = d_make_empty (di);
1002 p->type = DEMANGLE_COMPONENT_TEMPLATE_PARAM;
1003 p->u.s_number.number = i;
1008 /* Add a new function parameter. */
1010 static struct demangle_component *
1011 d_make_function_param (struct d_info *di, long i)
1013 struct demangle_component *p;
1015 p = d_make_empty (di);
1018 p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM;
1019 p->u.s_number.number = i;
1024 /* Add a new standard substitution component. */
1026 static struct demangle_component *
1027 d_make_sub (struct d_info *di, const char *name, int len)
1029 struct demangle_component *p;
1031 p = d_make_empty (di);
1034 p->type = DEMANGLE_COMPONENT_SUB_STD;
1035 p->u.s_string.string = name;
1036 p->u.s_string.len = len;
1041 /* <mangled-name> ::= _Z <encoding> [<clone-suffix>]*
1043 TOP_LEVEL is non-zero when called at the top level. */
1045 CP_STATIC_IF_GLIBCPP_V3
1046 struct demangle_component *
1047 cplus_demangle_mangled_name (struct d_info *di, int top_level)
1049 struct demangle_component *p;
1051 if (! d_check_char (di, '_')
1052 /* Allow missing _ if not at toplevel to work around a
1053 bug in G++ abi-version=2 mangling; see the comment in
1054 write_template_arg. */
1057 if (! d_check_char (di, 'Z'))
1059 p = d_encoding (di, top_level);
1061 /* If at top level and parsing parameters, check for a clone
1063 if (top_level && (di->options & DMGL_PARAMS) != 0)
1064 while (d_peek_char (di) == '.'
1065 && (IS_LOWER (d_peek_next_char (di))
1066 || d_peek_next_char (di) == '_'
1067 || IS_DIGIT (d_peek_next_char (di))))
1068 p = d_clone_suffix (di, p);
1073 /* Return whether a function should have a return type. The argument
1074 is the function name, which may be qualified in various ways. The
1075 rules are that template functions have return types with some
1076 exceptions, function types which are not part of a function name
1077 mangling have return types with some exceptions, and non-template
1078 function names do not have return types. The exceptions are that
1079 constructors, destructors, and conversion operators do not have
1083 has_return_type (struct demangle_component *dc)
1091 case DEMANGLE_COMPONENT_TEMPLATE:
1092 return ! is_ctor_dtor_or_conversion (d_left (dc));
1093 case DEMANGLE_COMPONENT_RESTRICT_THIS:
1094 case DEMANGLE_COMPONENT_VOLATILE_THIS:
1095 case DEMANGLE_COMPONENT_CONST_THIS:
1096 return has_return_type (d_left (dc));
1100 /* Return whether a name is a constructor, a destructor, or a
1101 conversion operator. */
1104 is_ctor_dtor_or_conversion (struct demangle_component *dc)
1112 case DEMANGLE_COMPONENT_QUAL_NAME:
1113 case DEMANGLE_COMPONENT_LOCAL_NAME:
1114 return is_ctor_dtor_or_conversion (d_right (dc));
1115 case DEMANGLE_COMPONENT_CTOR:
1116 case DEMANGLE_COMPONENT_DTOR:
1117 case DEMANGLE_COMPONENT_CAST:
1122 /* <encoding> ::= <(function) name> <bare-function-type>
1126 TOP_LEVEL is non-zero when called at the top level, in which case
1127 if DMGL_PARAMS is not set we do not demangle the function
1128 parameters. We only set this at the top level, because otherwise
1129 we would not correctly demangle names in local scopes. */
1131 static struct demangle_component *
1132 d_encoding (struct d_info *di, int top_level)
1134 char peek = d_peek_char (di);
1136 if (peek == 'G' || peek == 'T')
1137 return d_special_name (di);
1140 struct demangle_component *dc;
1144 if (dc != NULL && top_level && (di->options & DMGL_PARAMS) == 0)
1146 /* Strip off any initial CV-qualifiers, as they really apply
1147 to the `this' parameter, and they were not output by the
1148 v2 demangler without DMGL_PARAMS. */
1149 while (dc->type == DEMANGLE_COMPONENT_RESTRICT_THIS
1150 || dc->type == DEMANGLE_COMPONENT_VOLATILE_THIS
1151 || dc->type == DEMANGLE_COMPONENT_CONST_THIS)
1154 /* If the top level is a DEMANGLE_COMPONENT_LOCAL_NAME, then
1155 there may be CV-qualifiers on its right argument which
1156 really apply here; this happens when parsing a class
1157 which is local to a function. */
1158 if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
1160 struct demangle_component *dcr;
1163 while (dcr->type == DEMANGLE_COMPONENT_RESTRICT_THIS
1164 || dcr->type == DEMANGLE_COMPONENT_VOLATILE_THIS
1165 || dcr->type == DEMANGLE_COMPONENT_CONST_THIS)
1167 dc->u.s_binary.right = dcr;
1173 peek = d_peek_char (di);
1174 if (dc == NULL || peek == '\0' || peek == 'E')
1176 return d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME, dc,
1177 d_bare_function_type (di, has_return_type (dc)));
1181 /* <name> ::= <nested-name>
1183 ::= <unscoped-template-name> <template-args>
1186 <unscoped-name> ::= <unqualified-name>
1187 ::= St <unqualified-name>
1189 <unscoped-template-name> ::= <unscoped-name>
1193 static struct demangle_component *
1194 d_name (struct d_info *di)
1196 char peek = d_peek_char (di);
1197 struct demangle_component *dc;
1202 return d_nested_name (di);
1205 return d_local_name (di);
1209 return d_unqualified_name (di);
1215 if (d_peek_next_char (di) != 't')
1217 dc = d_substitution (di, 0);
1223 dc = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME,
1224 d_make_name (di, "std", 3),
1225 d_unqualified_name (di));
1230 if (d_peek_char (di) != 'I')
1232 /* The grammar does not permit this case to occur if we
1233 called d_substitution() above (i.e., subst == 1). We
1234 don't bother to check. */
1238 /* This is <template-args>, which means that we just saw
1239 <unscoped-template-name>, which is a substitution
1240 candidate if we didn't just get it from a
1244 if (! d_add_substitution (di, dc))
1247 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1248 d_template_args (di));
1255 dc = d_unqualified_name (di);
1256 if (d_peek_char (di) == 'I')
1258 /* This is <template-args>, which means that we just saw
1259 <unscoped-template-name>, which is a substitution
1261 if (! d_add_substitution (di, dc))
1263 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1264 d_template_args (di));
1270 /* <nested-name> ::= N [<CV-qualifiers>] <prefix> <unqualified-name> E
1271 ::= N [<CV-qualifiers>] <template-prefix> <template-args> E
1274 static struct demangle_component *
1275 d_nested_name (struct d_info *di)
1277 struct demangle_component *ret;
1278 struct demangle_component **pret;
1280 if (! d_check_char (di, 'N'))
1283 pret = d_cv_qualifiers (di, &ret, 1);
1287 *pret = d_prefix (di);
1291 if (! d_check_char (di, 'E'))
1297 /* <prefix> ::= <prefix> <unqualified-name>
1298 ::= <template-prefix> <template-args>
1299 ::= <template-param>
1304 <template-prefix> ::= <prefix> <(template) unqualified-name>
1305 ::= <template-param>
1309 static struct demangle_component *
1310 d_prefix (struct d_info *di)
1312 struct demangle_component *ret = NULL;
1317 enum demangle_component_type comb_type;
1318 struct demangle_component *dc;
1320 peek = d_peek_char (di);
1324 /* The older code accepts a <local-name> here, but I don't see
1325 that in the grammar. The older code does not accept a
1326 <template-param> here. */
1328 comb_type = DEMANGLE_COMPONENT_QUAL_NAME;
1331 char peek2 = d_peek_next_char (di);
1332 if (peek2 == 'T' || peek2 == 't')
1334 dc = cplus_demangle_type (di);
1336 /* Destructor name. */
1337 dc = d_unqualified_name (di);
1339 else if (IS_DIGIT (peek)
1344 dc = d_unqualified_name (di);
1345 else if (peek == 'S')
1346 dc = d_substitution (di, 1);
1347 else if (peek == 'I')
1351 comb_type = DEMANGLE_COMPONENT_TEMPLATE;
1352 dc = d_template_args (di);
1354 else if (peek == 'T')
1355 dc = d_template_param (di);
1356 else if (peek == 'E')
1358 else if (peek == 'M')
1360 /* Initializer scope for a lambda. We don't need to represent
1361 this; the normal code will just treat the variable as a type
1362 scope, which gives appropriate output. */
1374 ret = d_make_comp (di, comb_type, ret, dc);
1376 if (peek != 'S' && d_peek_char (di) != 'E')
1378 if (! d_add_substitution (di, ret))
1384 /* <unqualified-name> ::= <operator-name>
1385 ::= <ctor-dtor-name>
1387 ::= <local-source-name>
1389 <local-source-name> ::= L <source-name> <discriminator>
1392 static struct demangle_component *
1393 d_unqualified_name (struct d_info *di)
1397 peek = d_peek_char (di);
1398 if (IS_DIGIT (peek))
1399 return d_source_name (di);
1400 else if (IS_LOWER (peek))
1402 struct demangle_component *ret;
1404 ret = d_operator_name (di);
1405 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR)
1406 di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2;
1409 else if (peek == 'C' || peek == 'D')
1410 return d_ctor_dtor_name (di);
1411 else if (peek == 'L')
1413 struct demangle_component * ret;
1417 ret = d_source_name (di);
1420 if (! d_discriminator (di))
1424 else if (peek == 'U')
1426 switch (d_peek_next_char (di))
1429 return d_lambda (di);
1431 return d_unnamed_type (di);
1440 /* <source-name> ::= <(positive length) number> <identifier> */
1442 static struct demangle_component *
1443 d_source_name (struct d_info *di)
1446 struct demangle_component *ret;
1448 len = d_number (di);
1451 ret = d_identifier (di, len);
1452 di->last_name = ret;
1456 /* number ::= [n] <(non-negative decimal integer)> */
1459 d_number (struct d_info *di)
1466 peek = d_peek_char (di);
1471 peek = d_peek_char (di);
1477 if (! IS_DIGIT (peek))
1483 ret = ret * 10 + peek - '0';
1485 peek = d_peek_char (di);
1489 /* Like d_number, but returns a demangle_component. */
1491 static struct demangle_component *
1492 d_number_component (struct d_info *di)
1494 struct demangle_component *ret = d_make_empty (di);
1497 ret->type = DEMANGLE_COMPONENT_NUMBER;
1498 ret->u.s_number.number = d_number (di);
1503 /* identifier ::= <(unqualified source code identifier)> */
1505 static struct demangle_component *
1506 d_identifier (struct d_info *di, int len)
1512 if (di->send - name < len)
1515 d_advance (di, len);
1517 /* A Java mangled name may have a trailing '$' if it is a C++
1518 keyword. This '$' is not included in the length count. We just
1520 if ((di->options & DMGL_JAVA) != 0
1521 && d_peek_char (di) == '$')
1524 /* Look for something which looks like a gcc encoding of an
1525 anonymous namespace, and replace it with a more user friendly
1527 if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2
1528 && memcmp (name, ANONYMOUS_NAMESPACE_PREFIX,
1529 ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0)
1533 s = name + ANONYMOUS_NAMESPACE_PREFIX_LEN;
1534 if ((*s == '.' || *s == '_' || *s == '$')
1537 di->expansion -= len - sizeof "(anonymous namespace)";
1538 return d_make_name (di, "(anonymous namespace)",
1539 sizeof "(anonymous namespace)" - 1);
1543 return d_make_name (di, name, len);
1546 /* operator_name ::= many different two character encodings.
1548 ::= v <digit> <source-name>
1551 #define NL(s) s, (sizeof s) - 1
1553 CP_STATIC_IF_GLIBCPP_V3
1554 const struct demangle_operator_info cplus_demangle_operators[] =
1556 { "aN", NL ("&="), 2 },
1557 { "aS", NL ("="), 2 },
1558 { "aa", NL ("&&"), 2 },
1559 { "ad", NL ("&"), 1 },
1560 { "an", NL ("&"), 2 },
1561 { "cl", NL ("()"), 2 },
1562 { "cm", NL (","), 2 },
1563 { "co", NL ("~"), 1 },
1564 { "dV", NL ("/="), 2 },
1565 { "da", NL ("delete[]"), 1 },
1566 { "de", NL ("*"), 1 },
1567 { "dl", NL ("delete"), 1 },
1568 { "dt", NL ("."), 2 },
1569 { "dv", NL ("/"), 2 },
1570 { "eO", NL ("^="), 2 },
1571 { "eo", NL ("^"), 2 },
1572 { "eq", NL ("=="), 2 },
1573 { "ge", NL (">="), 2 },
1574 { "gt", NL (">"), 2 },
1575 { "ix", NL ("[]"), 2 },
1576 { "lS", NL ("<<="), 2 },
1577 { "le", NL ("<="), 2 },
1578 { "ls", NL ("<<"), 2 },
1579 { "lt", NL ("<"), 2 },
1580 { "mI", NL ("-="), 2 },
1581 { "mL", NL ("*="), 2 },
1582 { "mi", NL ("-"), 2 },
1583 { "ml", NL ("*"), 2 },
1584 { "mm", NL ("--"), 1 },
1585 { "na", NL ("new[]"), 1 },
1586 { "ne", NL ("!="), 2 },
1587 { "ng", NL ("-"), 1 },
1588 { "nt", NL ("!"), 1 },
1589 { "nw", NL ("new"), 1 },
1590 { "oR", NL ("|="), 2 },
1591 { "oo", NL ("||"), 2 },
1592 { "or", NL ("|"), 2 },
1593 { "pL", NL ("+="), 2 },
1594 { "pl", NL ("+"), 2 },
1595 { "pm", NL ("->*"), 2 },
1596 { "pp", NL ("++"), 1 },
1597 { "ps", NL ("+"), 1 },
1598 { "pt", NL ("->"), 2 },
1599 { "qu", NL ("?"), 3 },
1600 { "rM", NL ("%="), 2 },
1601 { "rS", NL (">>="), 2 },
1602 { "rm", NL ("%"), 2 },
1603 { "rs", NL (">>"), 2 },
1604 { "st", NL ("sizeof "), 1 },
1605 { "sz", NL ("sizeof "), 1 },
1606 { "at", NL ("alignof "), 1 },
1607 { "az", NL ("alignof "), 1 },
1608 { NULL, NULL, 0, 0 }
1611 static struct demangle_component *
1612 d_operator_name (struct d_info *di)
1617 c1 = d_next_char (di);
1618 c2 = d_next_char (di);
1619 if (c1 == 'v' && IS_DIGIT (c2))
1620 return d_make_extended_operator (di, c2 - '0', d_source_name (di));
1621 else if (c1 == 'c' && c2 == 'v')
1622 return d_make_comp (di, DEMANGLE_COMPONENT_CAST,
1623 cplus_demangle_type (di), NULL);
1626 /* LOW is the inclusive lower bound. */
1628 /* HIGH is the exclusive upper bound. We subtract one to ignore
1629 the sentinel at the end of the array. */
1630 int high = ((sizeof (cplus_demangle_operators)
1631 / sizeof (cplus_demangle_operators[0]))
1637 const struct demangle_operator_info *p;
1639 i = low + (high - low) / 2;
1640 p = cplus_demangle_operators + i;
1642 if (c1 == p->code[0] && c2 == p->code[1])
1643 return d_make_operator (di, p);
1645 if (c1 < p->code[0] || (c1 == p->code[0] && c2 < p->code[1]))
1655 static struct demangle_component *
1656 d_make_character (struct d_info *di, int c)
1658 struct demangle_component *p;
1659 p = d_make_empty (di);
1662 p->type = DEMANGLE_COMPONENT_CHARACTER;
1663 p->u.s_character.character = c;
1668 static struct demangle_component *
1669 d_java_resource (struct d_info *di)
1671 struct demangle_component *p = NULL;
1672 struct demangle_component *next = NULL;
1677 len = d_number (di);
1681 /* Eat the leading '_'. */
1682 if (d_next_char (di) != '_')
1695 /* Each chunk is either a '$' escape... */
1713 next = d_make_character (di, c);
1721 /* ... or a sequence of characters. */
1724 while (i < len && str[i] && str[i] != '$')
1727 next = d_make_name (di, str, i);
1740 p = d_make_comp (di, DEMANGLE_COMPONENT_COMPOUND_NAME, p, next);
1746 p = d_make_comp (di, DEMANGLE_COMPONENT_JAVA_RESOURCE, p, NULL);
1751 /* <special-name> ::= TV <type>
1755 ::= GV <(object) name>
1756 ::= T <call-offset> <(base) encoding>
1757 ::= Tc <call-offset> <call-offset> <(base) encoding>
1758 Also g++ extensions:
1759 ::= TC <type> <(offset) number> _ <(base) type>
1764 ::= Gr <resource name>
1767 static struct demangle_component *
1768 d_special_name (struct d_info *di)
1770 di->expansion += 20;
1771 if (d_check_char (di, 'T'))
1773 switch (d_next_char (di))
1777 return d_make_comp (di, DEMANGLE_COMPONENT_VTABLE,
1778 cplus_demangle_type (di), NULL);
1780 di->expansion -= 10;
1781 return d_make_comp (di, DEMANGLE_COMPONENT_VTT,
1782 cplus_demangle_type (di), NULL);
1784 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO,
1785 cplus_demangle_type (di), NULL);
1787 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_NAME,
1788 cplus_demangle_type (di), NULL);
1791 if (! d_call_offset (di, 'h'))
1793 return d_make_comp (di, DEMANGLE_COMPONENT_THUNK,
1794 d_encoding (di, 0), NULL);
1797 if (! d_call_offset (di, 'v'))
1799 return d_make_comp (di, DEMANGLE_COMPONENT_VIRTUAL_THUNK,
1800 d_encoding (di, 0), NULL);
1803 if (! d_call_offset (di, '\0'))
1805 if (! d_call_offset (di, '\0'))
1807 return d_make_comp (di, DEMANGLE_COMPONENT_COVARIANT_THUNK,
1808 d_encoding (di, 0), NULL);
1812 struct demangle_component *derived_type;
1814 struct demangle_component *base_type;
1816 derived_type = cplus_demangle_type (di);
1817 offset = d_number (di);
1820 if (! d_check_char (di, '_'))
1822 base_type = cplus_demangle_type (di);
1823 /* We don't display the offset. FIXME: We should display
1824 it in verbose mode. */
1826 return d_make_comp (di, DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
1827 base_type, derived_type);
1831 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_FN,
1832 cplus_demangle_type (di), NULL);
1834 return d_make_comp (di, DEMANGLE_COMPONENT_JAVA_CLASS,
1835 cplus_demangle_type (di), NULL);
1841 else if (d_check_char (di, 'G'))
1843 switch (d_next_char (di))
1846 return d_make_comp (di, DEMANGLE_COMPONENT_GUARD, d_name (di), NULL);
1849 return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, d_name (di),
1853 return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS,
1854 d_encoding (di, 0), NULL);
1857 return d_java_resource (di);
1867 /* <call-offset> ::= h <nv-offset> _
1870 <nv-offset> ::= <(offset) number>
1872 <v-offset> ::= <(offset) number> _ <(virtual offset) number>
1874 The C parameter, if not '\0', is a character we just read which is
1875 the start of the <call-offset>.
1877 We don't display the offset information anywhere. FIXME: We should
1878 display it in verbose mode. */
1881 d_call_offset (struct d_info *di, int c)
1884 c = d_next_char (di);
1891 if (! d_check_char (di, '_'))
1898 if (! d_check_char (di, '_'))
1904 /* <ctor-dtor-name> ::= C1
1912 static struct demangle_component *
1913 d_ctor_dtor_name (struct d_info *di)
1915 if (di->last_name != NULL)
1917 if (di->last_name->type == DEMANGLE_COMPONENT_NAME)
1918 di->expansion += di->last_name->u.s_name.len;
1919 else if (di->last_name->type == DEMANGLE_COMPONENT_SUB_STD)
1920 di->expansion += di->last_name->u.s_string.len;
1922 switch (d_peek_char (di))
1926 enum gnu_v3_ctor_kinds kind;
1928 switch (d_peek_next_char (di))
1931 kind = gnu_v3_complete_object_ctor;
1934 kind = gnu_v3_base_object_ctor;
1937 kind = gnu_v3_complete_object_allocating_ctor;
1943 return d_make_ctor (di, kind, di->last_name);
1948 enum gnu_v3_dtor_kinds kind;
1950 switch (d_peek_next_char (di))
1953 kind = gnu_v3_deleting_dtor;
1956 kind = gnu_v3_complete_object_dtor;
1959 kind = gnu_v3_base_object_dtor;
1965 return d_make_dtor (di, kind, di->last_name);
1973 /* <type> ::= <builtin-type>
1975 ::= <class-enum-type>
1977 ::= <pointer-to-member-type>
1978 ::= <template-param>
1979 ::= <template-template-param> <template-args>
1981 ::= <CV-qualifiers> <type>
1984 ::= O <type> (C++0x)
1987 ::= U <source-name> <type>
1989 <builtin-type> ::= various one letter codes
1993 CP_STATIC_IF_GLIBCPP_V3
1994 const struct demangle_builtin_type_info
1995 cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT] =
1997 /* a */ { NL ("signed char"), NL ("signed char"), D_PRINT_DEFAULT },
1998 /* b */ { NL ("bool"), NL ("boolean"), D_PRINT_BOOL },
1999 /* c */ { NL ("char"), NL ("byte"), D_PRINT_DEFAULT },
2000 /* d */ { NL ("double"), NL ("double"), D_PRINT_FLOAT },
2001 /* e */ { NL ("long double"), NL ("long double"), D_PRINT_FLOAT },
2002 /* f */ { NL ("float"), NL ("float"), D_PRINT_FLOAT },
2003 /* g */ { NL ("__float128"), NL ("__float128"), D_PRINT_FLOAT },
2004 /* h */ { NL ("unsigned char"), NL ("unsigned char"), D_PRINT_DEFAULT },
2005 /* i */ { NL ("int"), NL ("int"), D_PRINT_INT },
2006 /* j */ { NL ("unsigned int"), NL ("unsigned"), D_PRINT_UNSIGNED },
2007 /* k */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2008 /* l */ { NL ("long"), NL ("long"), D_PRINT_LONG },
2009 /* m */ { NL ("unsigned long"), NL ("unsigned long"), D_PRINT_UNSIGNED_LONG },
2010 /* n */ { NL ("__int128"), NL ("__int128"), D_PRINT_DEFAULT },
2011 /* o */ { NL ("unsigned __int128"), NL ("unsigned __int128"),
2013 /* p */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2014 /* q */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2015 /* r */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2016 /* s */ { NL ("short"), NL ("short"), D_PRINT_DEFAULT },
2017 /* t */ { NL ("unsigned short"), NL ("unsigned short"), D_PRINT_DEFAULT },
2018 /* u */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
2019 /* v */ { NL ("void"), NL ("void"), D_PRINT_VOID },
2020 /* w */ { NL ("wchar_t"), NL ("char"), D_PRINT_DEFAULT },
2021 /* x */ { NL ("long long"), NL ("long"), D_PRINT_LONG_LONG },
2022 /* y */ { NL ("unsigned long long"), NL ("unsigned long long"),
2023 D_PRINT_UNSIGNED_LONG_LONG },
2024 /* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT },
2025 /* 26 */ { NL ("decimal32"), NL ("decimal32"), D_PRINT_DEFAULT },
2026 /* 27 */ { NL ("decimal64"), NL ("decimal64"), D_PRINT_DEFAULT },
2027 /* 28 */ { NL ("decimal128"), NL ("decimal128"), D_PRINT_DEFAULT },
2028 /* 29 */ { NL ("half"), NL ("half"), D_PRINT_FLOAT },
2029 /* 30 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT },
2030 /* 31 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT },
2031 /* 32 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"),
2035 CP_STATIC_IF_GLIBCPP_V3
2036 struct demangle_component *
2037 cplus_demangle_type (struct d_info *di)
2040 struct demangle_component *ret;
2043 /* The ABI specifies that when CV-qualifiers are used, the base type
2044 is substitutable, and the fully qualified type is substitutable,
2045 but the base type with a strict subset of the CV-qualifiers is
2046 not substitutable. The natural recursive implementation of the
2047 CV-qualifiers would cause subsets to be substitutable, so instead
2048 we pull them all off now.
2050 FIXME: The ABI says that order-insensitive vendor qualifiers
2051 should be handled in the same way, but we have no way to tell
2052 which vendor qualifiers are order-insensitive and which are
2053 order-sensitive. So we just assume that they are all
2054 order-sensitive. g++ 3.4 supports only one vendor qualifier,
2055 __vector, and it treats it as order-sensitive when mangling
2058 peek = d_peek_char (di);
2059 if (peek == 'r' || peek == 'V' || peek == 'K')
2061 struct demangle_component **pret;
2063 pret = d_cv_qualifiers (di, &ret, 0);
2066 *pret = cplus_demangle_type (di);
2067 if (! *pret || ! d_add_substitution (di, ret))
2076 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
2077 case 'h': case 'i': case 'j': case 'l': case 'm': case 'n':
2078 case 'o': case 's': case 't':
2079 case 'v': case 'w': case 'x': case 'y': case 'z':
2080 ret = d_make_builtin_type (di,
2081 &cplus_demangle_builtin_types[peek - 'a']);
2082 di->expansion += ret->u.s_builtin.type->len;
2089 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE,
2090 d_source_name (di), NULL);
2094 ret = d_function_type (di);
2097 case '0': case '1': case '2': case '3': case '4':
2098 case '5': case '6': case '7': case '8': case '9':
2101 ret = d_class_enum_type (di);
2105 ret = d_array_type (di);
2109 ret = d_pointer_to_member_type (di);
2113 ret = d_template_param (di);
2114 if (d_peek_char (di) == 'I')
2116 /* This is <template-template-param> <template-args>. The
2117 <template-template-param> part is a substitution
2119 if (! d_add_substitution (di, ret))
2121 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2122 d_template_args (di));
2127 /* If this is a special substitution, then it is the start of
2128 <class-enum-type>. */
2132 peek_next = d_peek_next_char (di);
2133 if (IS_DIGIT (peek_next)
2135 || IS_UPPER (peek_next))
2137 ret = d_substitution (di, 0);
2138 /* The substituted name may have been a template name and
2139 may be followed by tepmlate args. */
2140 if (d_peek_char (di) == 'I')
2141 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2142 d_template_args (di));
2148 ret = d_class_enum_type (di);
2149 /* If the substitution was a complete type, then it is not
2150 a new substitution candidate. However, if the
2151 substitution was followed by template arguments, then
2152 the whole thing is a substitution candidate. */
2153 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_SUB_STD)
2161 ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE,
2162 cplus_demangle_type (di), NULL);
2167 ret = d_make_comp (di, DEMANGLE_COMPONENT_POINTER,
2168 cplus_demangle_type (di), NULL);
2173 ret = d_make_comp (di, DEMANGLE_COMPONENT_REFERENCE,
2174 cplus_demangle_type (di), NULL);
2179 ret = d_make_comp (di, DEMANGLE_COMPONENT_COMPLEX,
2180 cplus_demangle_type (di), NULL);
2185 ret = d_make_comp (di, DEMANGLE_COMPONENT_IMAGINARY,
2186 cplus_demangle_type (di), NULL);
2191 ret = d_source_name (di);
2192 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
2193 cplus_demangle_type (di), ret);
2199 peek = d_next_char (di);
2204 /* decltype (expression) */
2205 ret = d_make_comp (di, DEMANGLE_COMPONENT_DECLTYPE,
2206 d_expression (di), NULL);
2207 if (ret && d_next_char (di) != 'E')
2212 /* Pack expansion. */
2213 ret = d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
2214 cplus_demangle_type (di), NULL);
2218 /* 32-bit decimal floating point */
2219 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);
2220 di->expansion += ret->u.s_builtin.type->len;
2224 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[27]);
2225 di->expansion += ret->u.s_builtin.type->len;
2229 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[28]);
2230 di->expansion += ret->u.s_builtin.type->len;
2233 /* 16-bit half-precision FP */
2234 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]);
2235 di->expansion += ret->u.s_builtin.type->len;
2239 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
2240 di->expansion += ret->u.s_builtin.type->len;
2244 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
2245 di->expansion += ret->u.s_builtin.type->len;
2249 /* Fixed point types. DF<int bits><length><fract bits><sat> */
2250 ret = d_make_empty (di);
2251 ret->type = DEMANGLE_COMPONENT_FIXED_TYPE;
2252 if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di))))
2253 /* For demangling we don't care about the bits. */
2255 ret->u.s_fixed.length = cplus_demangle_type (di);
2256 if (ret->u.s_fixed.length == NULL)
2259 peek = d_next_char (di);
2260 ret->u.s_fixed.sat = (peek == 's');
2264 ret = d_vector_type (di);
2268 /* decltype(nullptr) */
2269 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[32]);
2270 di->expansion += ret->u.s_builtin.type->len;
2284 if (! d_add_substitution (di, ret))
2291 /* <CV-qualifiers> ::= [r] [V] [K] */
2293 static struct demangle_component **
2294 d_cv_qualifiers (struct d_info *di,
2295 struct demangle_component **pret, int member_fn)
2297 struct demangle_component **pstart;
2301 peek = d_peek_char (di);
2302 while (peek == 'r' || peek == 'V' || peek == 'K')
2304 enum demangle_component_type t;
2310 ? DEMANGLE_COMPONENT_RESTRICT_THIS
2311 : DEMANGLE_COMPONENT_RESTRICT);
2312 di->expansion += sizeof "restrict";
2314 else if (peek == 'V')
2317 ? DEMANGLE_COMPONENT_VOLATILE_THIS
2318 : DEMANGLE_COMPONENT_VOLATILE);
2319 di->expansion += sizeof "volatile";
2324 ? DEMANGLE_COMPONENT_CONST_THIS
2325 : DEMANGLE_COMPONENT_CONST);
2326 di->expansion += sizeof "const";
2329 *pret = d_make_comp (di, t, NULL, NULL);
2332 pret = &d_left (*pret);
2334 peek = d_peek_char (di);
2337 if (!member_fn && peek == 'F')
2339 while (pstart != pret)
2341 switch ((*pstart)->type)
2343 case DEMANGLE_COMPONENT_RESTRICT:
2344 (*pstart)->type = DEMANGLE_COMPONENT_RESTRICT_THIS;
2346 case DEMANGLE_COMPONENT_VOLATILE:
2347 (*pstart)->type = DEMANGLE_COMPONENT_VOLATILE_THIS;
2349 case DEMANGLE_COMPONENT_CONST:
2350 (*pstart)->type = DEMANGLE_COMPONENT_CONST_THIS;
2355 pstart = &d_left (*pstart);
2362 /* <function-type> ::= F [Y] <bare-function-type> E */
2364 static struct demangle_component *
2365 d_function_type (struct d_info *di)
2367 struct demangle_component *ret;
2369 if (! d_check_char (di, 'F'))
2371 if (d_peek_char (di) == 'Y')
2373 /* Function has C linkage. We don't print this information.
2374 FIXME: We should print it in verbose mode. */
2377 ret = d_bare_function_type (di, 1);
2378 if (! d_check_char (di, 'E'))
2385 static struct demangle_component *
2386 d_parmlist (struct d_info *di)
2388 struct demangle_component *tl;
2389 struct demangle_component **ptl;
2395 struct demangle_component *type;
2397 char peek = d_peek_char (di);
2398 if (peek == '\0' || peek == 'E' || peek == '.')
2400 type = cplus_demangle_type (di);
2403 *ptl = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, type, NULL);
2406 ptl = &d_right (*ptl);
2409 /* There should be at least one parameter type besides the optional
2410 return type. A function which takes no arguments will have a
2411 single parameter type void. */
2415 /* If we have a single parameter type void, omit it. */
2416 if (d_right (tl) == NULL
2417 && d_left (tl)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2418 && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID)
2420 di->expansion -= d_left (tl)->u.s_builtin.type->len;
2427 /* <bare-function-type> ::= [J]<type>+ */
2429 static struct demangle_component *
2430 d_bare_function_type (struct d_info *di, int has_return_type)
2432 struct demangle_component *return_type;
2433 struct demangle_component *tl;
2436 /* Detect special qualifier indicating that the first argument
2437 is the return type. */
2438 peek = d_peek_char (di);
2442 has_return_type = 1;
2445 if (has_return_type)
2447 return_type = cplus_demangle_type (di);
2448 if (return_type == NULL)
2454 tl = d_parmlist (di);
2458 return d_make_comp (di, DEMANGLE_COMPONENT_FUNCTION_TYPE,
2462 /* <class-enum-type> ::= <name> */
2464 static struct demangle_component *
2465 d_class_enum_type (struct d_info *di)
2470 /* <array-type> ::= A <(positive dimension) number> _ <(element) type>
2471 ::= A [<(dimension) expression>] _ <(element) type>
2474 static struct demangle_component *
2475 d_array_type (struct d_info *di)
2478 struct demangle_component *dim;
2480 if (! d_check_char (di, 'A'))
2483 peek = d_peek_char (di);
2486 else if (IS_DIGIT (peek))
2494 peek = d_peek_char (di);
2496 while (IS_DIGIT (peek));
2497 dim = d_make_name (di, s, d_str (di) - s);
2503 dim = d_expression (di);
2508 if (! d_check_char (di, '_'))
2511 return d_make_comp (di, DEMANGLE_COMPONENT_ARRAY_TYPE, dim,
2512 cplus_demangle_type (di));
2515 /* <vector-type> ::= Dv <number> _ <type>
2516 ::= Dv _ <expression> _ <type> */
2518 static struct demangle_component *
2519 d_vector_type (struct d_info *di)
2522 struct demangle_component *dim;
2524 peek = d_peek_char (di);
2528 dim = d_expression (di);
2531 dim = d_number_component (di);
2536 if (! d_check_char (di, '_'))
2539 return d_make_comp (di, DEMANGLE_COMPONENT_VECTOR_TYPE, dim,
2540 cplus_demangle_type (di));
2543 /* <pointer-to-member-type> ::= M <(class) type> <(member) type> */
2545 static struct demangle_component *
2546 d_pointer_to_member_type (struct d_info *di)
2548 struct demangle_component *cl;
2549 struct demangle_component *mem;
2550 struct demangle_component **pmem;
2552 if (! d_check_char (di, 'M'))
2555 cl = cplus_demangle_type (di);
2557 /* The ABI specifies that any type can be a substitution source, and
2558 that M is followed by two types, and that when a CV-qualified
2559 type is seen both the base type and the CV-qualified types are
2560 substitution sources. The ABI also specifies that for a pointer
2561 to a CV-qualified member function, the qualifiers are attached to
2562 the second type. Given the grammar, a plain reading of the ABI
2563 suggests that both the CV-qualified member function and the
2564 non-qualified member function are substitution sources. However,
2565 g++ does not work that way. g++ treats only the CV-qualified
2566 member function as a substitution source. FIXME. So to work
2567 with g++, we need to pull off the CV-qualifiers here, in order to
2568 avoid calling add_substitution() in cplus_demangle_type(). But
2569 for a CV-qualified member which is not a function, g++ does
2570 follow the ABI, so we need to handle that case here by calling
2571 d_add_substitution ourselves. */
2573 pmem = d_cv_qualifiers (di, &mem, 1);
2576 *pmem = cplus_demangle_type (di);
2580 if (pmem != &mem && (*pmem)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE)
2582 if (! d_add_substitution (di, mem))
2586 return d_make_comp (di, DEMANGLE_COMPONENT_PTRMEM_TYPE, cl, mem);
2589 /* <non-negative number> _ */
2592 d_compact_number (struct d_info *di)
2595 if (d_peek_char (di) == '_')
2597 else if (d_peek_char (di) == 'n')
2600 num = d_number (di) + 1;
2602 if (! d_check_char (di, '_'))
2607 /* <template-param> ::= T_
2608 ::= T <(parameter-2 non-negative) number> _
2611 static struct demangle_component *
2612 d_template_param (struct d_info *di)
2616 if (! d_check_char (di, 'T'))
2619 param = d_compact_number (di);
2625 return d_make_template_param (di, param);
2628 /* <template-args> ::= I <template-arg>+ E */
2630 static struct demangle_component *
2631 d_template_args (struct d_info *di)
2633 struct demangle_component *hold_last_name;
2634 struct demangle_component *al;
2635 struct demangle_component **pal;
2637 /* Preserve the last name we saw--don't let the template arguments
2638 clobber it, as that would give us the wrong name for a subsequent
2639 constructor or destructor. */
2640 hold_last_name = di->last_name;
2642 if (! d_check_char (di, 'I'))
2645 if (d_peek_char (di) == 'E')
2647 /* An argument pack can be empty. */
2649 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL);
2656 struct demangle_component *a;
2658 a = d_template_arg (di);
2662 *pal = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, a, NULL);
2665 pal = &d_right (*pal);
2667 if (d_peek_char (di) == 'E')
2674 di->last_name = hold_last_name;
2679 /* <template-arg> ::= <type>
2680 ::= X <expression> E
2684 static struct demangle_component *
2685 d_template_arg (struct d_info *di)
2687 struct demangle_component *ret;
2689 switch (d_peek_char (di))
2693 ret = d_expression (di);
2694 if (! d_check_char (di, 'E'))
2699 return d_expr_primary (di);
2702 /* An argument pack. */
2703 return d_template_args (di);
2706 return cplus_demangle_type (di);
2710 /* Subroutine of <expression> ::= cl <expression>+ E */
2712 static struct demangle_component *
2713 d_exprlist (struct d_info *di)
2715 struct demangle_component *list = NULL;
2716 struct demangle_component **p = &list;
2718 if (d_peek_char (di) == 'E')
2721 return d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, NULL, NULL);
2726 struct demangle_component *arg = d_expression (di);
2730 *p = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, arg, NULL);
2735 if (d_peek_char (di) == 'E')
2745 /* <expression> ::= <(unary) operator-name> <expression>
2746 ::= <(binary) operator-name> <expression> <expression>
2747 ::= <(trinary) operator-name> <expression> <expression> <expression>
2748 ::= cl <expression>+ E
2750 ::= <template-param>
2751 ::= sr <type> <unqualified-name>
2752 ::= sr <type> <unqualified-name> <template-args>
2756 static struct demangle_component *
2757 d_expression (struct d_info *di)
2761 peek = d_peek_char (di);
2763 return d_expr_primary (di);
2764 else if (peek == 'T')
2765 return d_template_param (di);
2766 else if (peek == 's' && d_peek_next_char (di) == 'r')
2768 struct demangle_component *type;
2769 struct demangle_component *name;
2772 type = cplus_demangle_type (di);
2773 name = d_unqualified_name (di);
2774 if (d_peek_char (di) != 'I')
2775 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type, name);
2777 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type,
2778 d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
2779 d_template_args (di)));
2781 else if (peek == 's' && d_peek_next_char (di) == 'p')
2784 return d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
2785 d_expression (di), NULL);
2787 else if (peek == 'f' && d_peek_next_char (di) == 'p')
2789 /* Function parameter used in a late-specified return type. */
2792 if (d_peek_char (di) == 'T')
2794 /* 'this' parameter. */
2800 index = d_compact_number (di) + 1;
2804 return d_make_function_param (di, index);
2806 else if (IS_DIGIT (peek)
2807 || (peek == 'o' && d_peek_next_char (di) == 'n'))
2809 /* We can get an unqualified name as an expression in the case of
2810 a dependent function call, i.e. decltype(f(t)). */
2811 struct demangle_component *name;
2814 /* operator-function-id, i.e. operator+(t). */
2817 name = d_unqualified_name (di);
2820 if (d_peek_char (di) == 'I')
2821 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
2822 d_template_args (di));
2828 struct demangle_component *op;
2831 op = d_operator_name (di);
2835 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
2836 di->expansion += op->u.s_operator.op->len - 2;
2838 if (op->type == DEMANGLE_COMPONENT_OPERATOR
2839 && strcmp (op->u.s_operator.op->code, "st") == 0)
2840 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
2841 cplus_demangle_type (di));
2847 case DEMANGLE_COMPONENT_OPERATOR:
2848 args = op->u.s_operator.op->args;
2850 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
2851 args = op->u.s_extended_operator.args;
2853 case DEMANGLE_COMPONENT_CAST:
2862 struct demangle_component *operand;
2863 if (op->type == DEMANGLE_COMPONENT_CAST
2864 && d_check_char (di, '_'))
2865 operand = d_exprlist (di);
2867 operand = d_expression (di);
2868 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
2873 struct demangle_component *left;
2874 struct demangle_component *right;
2875 const char *code = op->u.s_operator.op->code;
2877 left = d_expression (di);
2878 if (!strcmp (code, "cl"))
2879 right = d_exprlist (di);
2880 else if (!strcmp (code, "dt") || !strcmp (code, "pt"))
2882 right = d_unqualified_name (di);
2883 if (d_peek_char (di) == 'I')
2884 right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE,
2885 right, d_template_args (di));
2888 right = d_expression (di);
2890 return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op,
2892 DEMANGLE_COMPONENT_BINARY_ARGS,
2897 struct demangle_component *first;
2898 struct demangle_component *second;
2900 first = d_expression (di);
2901 second = d_expression (di);
2902 return d_make_comp (di, DEMANGLE_COMPONENT_TRINARY, op,
2904 DEMANGLE_COMPONENT_TRINARY_ARG1,
2907 DEMANGLE_COMPONENT_TRINARY_ARG2,
2909 d_expression (di))));
2917 /* <expr-primary> ::= L <type> <(value) number> E
2918 ::= L <type> <(value) float> E
2919 ::= L <mangled-name> E
2922 static struct demangle_component *
2923 d_expr_primary (struct d_info *di)
2925 struct demangle_component *ret;
2927 if (! d_check_char (di, 'L'))
2929 if (d_peek_char (di) == '_'
2930 /* Workaround for G++ bug; see comment in write_template_arg. */
2931 || d_peek_char (di) == 'Z')
2932 ret = cplus_demangle_mangled_name (di, 0);
2935 struct demangle_component *type;
2936 enum demangle_component_type t;
2939 type = cplus_demangle_type (di);
2943 /* If we have a type we know how to print, we aren't going to
2944 print the type name itself. */
2945 if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2946 && type->u.s_builtin.type->print != D_PRINT_DEFAULT)
2947 di->expansion -= type->u.s_builtin.type->len;
2949 /* Rather than try to interpret the literal value, we just
2950 collect it as a string. Note that it's possible to have a
2951 floating point literal here. The ABI specifies that the
2952 format of such literals is machine independent. That's fine,
2953 but what's not fine is that versions of g++ up to 3.2 with
2954 -fabi-version=1 used upper case letters in the hex constant,
2955 and dumped out gcc's internal representation. That makes it
2956 hard to tell where the constant ends, and hard to dump the
2957 constant in any readable form anyhow. We don't attempt to
2958 handle these cases. */
2960 t = DEMANGLE_COMPONENT_LITERAL;
2961 if (d_peek_char (di) == 'n')
2963 t = DEMANGLE_COMPONENT_LITERAL_NEG;
2967 while (d_peek_char (di) != 'E')
2969 if (d_peek_char (di) == '\0')
2973 ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s));
2975 if (! d_check_char (di, 'E'))
2980 /* <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>]
2981 ::= Z <(function) encoding> E s [<discriminator>]
2984 static struct demangle_component *
2985 d_local_name (struct d_info *di)
2987 struct demangle_component *function;
2989 if (! d_check_char (di, 'Z'))
2992 function = d_encoding (di, 0);
2994 if (! d_check_char (di, 'E'))
2997 if (d_peek_char (di) == 's')
3000 if (! d_discriminator (di))
3002 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function,
3003 d_make_name (di, "string literal",
3004 sizeof "string literal" - 1));
3008 struct demangle_component *name;
3011 if (d_peek_char (di) == 'd')
3013 /* Default argument scope: d <number> _. */
3015 num = d_compact_number (di);
3024 /* Lambdas and unnamed types have internal discriminators. */
3025 case DEMANGLE_COMPONENT_LAMBDA:
3026 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
3029 if (! d_discriminator (di))
3033 name = d_make_default_arg (di, num, name);
3034 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
3038 /* <discriminator> ::= _ <(non-negative) number>
3040 We demangle the discriminator, but we don't print it out. FIXME:
3041 We should print it out in verbose mode. */
3044 d_discriminator (struct d_info *di)
3048 if (d_peek_char (di) != '_')
3051 discrim = d_number (di);
3057 /* <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ */
3059 static struct demangle_component *
3060 d_lambda (struct d_info *di)
3062 struct demangle_component *tl;
3063 struct demangle_component *ret;
3066 if (! d_check_char (di, 'U'))
3068 if (! d_check_char (di, 'l'))
3071 tl = d_parmlist (di);
3075 if (! d_check_char (di, 'E'))
3078 num = d_compact_number (di);
3082 ret = d_make_empty (di);
3085 ret->type = DEMANGLE_COMPONENT_LAMBDA;
3086 ret->u.s_unary_num.sub = tl;
3087 ret->u.s_unary_num.num = num;
3090 if (! d_add_substitution (di, ret))
3096 /* <unnamed-type-name> ::= Ut [ <nonnegative number> ] _ */
3098 static struct demangle_component *
3099 d_unnamed_type (struct d_info *di)
3101 struct demangle_component *ret;
3104 if (! d_check_char (di, 'U'))
3106 if (! d_check_char (di, 't'))
3109 num = d_compact_number (di);
3113 ret = d_make_empty (di);
3116 ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE;
3117 ret->u.s_number.number = num;
3120 if (! d_add_substitution (di, ret))
3126 /* <clone-suffix> ::= [ . <clone-type-identifier> ] [ . <nonnegative number> ]*
3129 static struct demangle_component *
3130 d_clone_suffix (struct d_info *di, struct demangle_component *encoding)
3132 const char *suffix = d_str (di);
3133 const char *pend = suffix;
3134 struct demangle_component *n;
3136 if (*pend == '.' && (IS_LOWER (pend[1]) || pend[1] == '_'))
3139 while (IS_LOWER (*pend) || *pend == '_')
3142 while (*pend == '.' && IS_DIGIT (pend[1]))
3145 while (IS_DIGIT (*pend))
3148 d_advance (di, pend - suffix);
3149 n = d_make_name (di, suffix, pend - suffix);
3150 return d_make_comp (di, DEMANGLE_COMPONENT_CLONE, encoding, n);
3153 /* Add a new substitution. */
3156 d_add_substitution (struct d_info *di, struct demangle_component *dc)
3160 if (di->next_sub >= di->num_subs)
3162 di->subs[di->next_sub] = dc;
3167 /* <substitution> ::= S <seq-id> _
3177 If PREFIX is non-zero, then this type is being used as a prefix in
3178 a qualified name. In this case, for the standard substitutions, we
3179 need to check whether we are being used as a prefix for a
3180 constructor or destructor, and return a full template name.
3181 Otherwise we will get something like std::iostream::~iostream()
3182 which does not correspond particularly well to any function which
3183 actually appears in the source.
3186 static const struct d_standard_sub_info standard_subs[] =
3191 { 'a', NL ("std::allocator"),
3192 NL ("std::allocator"),
3194 { 'b', NL ("std::basic_string"),
3195 NL ("std::basic_string"),
3196 NL ("basic_string") },
3197 { 's', NL ("std::string"),
3198 NL ("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
3199 NL ("basic_string") },
3200 { 'i', NL ("std::istream"),
3201 NL ("std::basic_istream<char, std::char_traits<char> >"),
3202 NL ("basic_istream") },
3203 { 'o', NL ("std::ostream"),
3204 NL ("std::basic_ostream<char, std::char_traits<char> >"),
3205 NL ("basic_ostream") },
3206 { 'd', NL ("std::iostream"),
3207 NL ("std::basic_iostream<char, std::char_traits<char> >"),
3208 NL ("basic_iostream") }
3211 static struct demangle_component *
3212 d_substitution (struct d_info *di, int prefix)
3216 if (! d_check_char (di, 'S'))
3219 c = d_next_char (di);
3220 if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
3229 unsigned int new_id;
3232 new_id = id * 36 + c - '0';
3233 else if (IS_UPPER (c))
3234 new_id = id * 36 + c - 'A' + 10;
3240 c = d_next_char (di);
3247 if (id >= (unsigned int) di->next_sub)
3252 return di->subs[id];
3257 const struct d_standard_sub_info *p;
3258 const struct d_standard_sub_info *pend;
3260 verbose = (di->options & DMGL_VERBOSE) != 0;
3261 if (! verbose && prefix)
3265 peek = d_peek_char (di);
3266 if (peek == 'C' || peek == 'D')
3270 pend = (&standard_subs[0]
3271 + sizeof standard_subs / sizeof standard_subs[0]);
3272 for (p = &standard_subs[0]; p < pend; ++p)
3279 if (p->set_last_name != NULL)
3280 di->last_name = d_make_sub (di, p->set_last_name,
3281 p->set_last_name_len);
3284 s = p->full_expansion;
3289 s = p->simple_expansion;
3290 len = p->simple_len;
3292 di->expansion += len;
3293 return d_make_sub (di, s, len);
3301 /* Initialize a growable string. */
3304 d_growable_string_init (struct d_growable_string *dgs, size_t estimate)
3309 dgs->allocation_failure = 0;
3312 d_growable_string_resize (dgs, estimate);
3315 /* Grow a growable string to a given size. */
3318 d_growable_string_resize (struct d_growable_string *dgs, size_t need)
3323 if (dgs->allocation_failure)
3326 /* Start allocation at two bytes to avoid any possibility of confusion
3327 with the special value of 1 used as a return in *palc to indicate
3328 allocation failures. */
3329 newalc = dgs->alc > 0 ? dgs->alc : 2;
3330 while (newalc < need)
3333 newbuf = (char *) realloc (dgs->buf, newalc);
3340 dgs->allocation_failure = 1;
3347 /* Append a buffer to a growable string. */
3350 d_growable_string_append_buffer (struct d_growable_string *dgs,
3351 const char *s, size_t l)
3355 need = dgs->len + l + 1;
3356 if (need > dgs->alc)
3357 d_growable_string_resize (dgs, need);
3359 if (dgs->allocation_failure)
3362 memcpy (dgs->buf + dgs->len, s, l);
3363 dgs->buf[dgs->len + l] = '\0';
3367 /* Bridge growable strings to the callback mechanism. */
3370 d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
3372 struct d_growable_string *dgs = (struct d_growable_string*) opaque;
3374 d_growable_string_append_buffer (dgs, s, l);
3377 /* Initialize a print information structure. */
3380 d_print_init (struct d_print_info *dpi, demangle_callbackref callback,
3384 dpi->last_char = '\0';
3385 dpi->templates = NULL;
3386 dpi->modifiers = NULL;
3387 dpi->pack_index = 0;
3388 dpi->flush_count = 0;
3390 dpi->callback = callback;
3391 dpi->opaque = opaque;
3393 dpi->demangle_failure = 0;
3396 /* Indicate that an error occurred during printing, and test for error. */
3399 d_print_error (struct d_print_info *dpi)
3401 dpi->demangle_failure = 1;
3405 d_print_saw_error (struct d_print_info *dpi)
3407 return dpi->demangle_failure != 0;
3410 /* Flush buffered characters to the callback. */
3413 d_print_flush (struct d_print_info *dpi)
3415 dpi->buf[dpi->len] = '\0';
3416 dpi->callback (dpi->buf, dpi->len, dpi->opaque);
3421 /* Append characters and buffers for printing. */
3424 d_append_char (struct d_print_info *dpi, char c)
3426 if (dpi->len == sizeof (dpi->buf) - 1)
3427 d_print_flush (dpi);
3429 dpi->buf[dpi->len++] = c;
3434 d_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
3438 for (i = 0; i < l; i++)
3439 d_append_char (dpi, s[i]);
3443 d_append_string (struct d_print_info *dpi, const char *s)
3445 d_append_buffer (dpi, s, strlen (s));
3449 d_append_num (struct d_print_info *dpi, long l)
3452 sprintf (buf,"%ld", l);
3453 d_append_string (dpi, buf);
3457 d_last_char (struct d_print_info *dpi)
3459 return dpi->last_char;
3462 /* Turn components into a human readable string. OPTIONS is the
3463 options bits passed to the demangler. DC is the tree to print.
3464 CALLBACK is a function to call to flush demangled string segments
3465 as they fill the intermediate buffer, and OPAQUE is a generalized
3466 callback argument. On success, this returns 1. On failure,
3467 it returns 0, indicating a bad parse. It does not use heap
3468 memory to build an output string, so cannot encounter memory
3469 allocation failure. */
3471 CP_STATIC_IF_GLIBCPP_V3
3473 cplus_demangle_print_callback (int options,
3474 const struct demangle_component *dc,
3475 demangle_callbackref callback, void *opaque)
3477 struct d_print_info dpi;
3479 d_print_init (&dpi, callback, opaque);
3481 d_print_comp (&dpi, options, dc);
3483 d_print_flush (&dpi);
3485 return ! d_print_saw_error (&dpi);
3488 /* Turn components into a human readable string. OPTIONS is the
3489 options bits passed to the demangler. DC is the tree to print.
3490 ESTIMATE is a guess at the length of the result. This returns a
3491 string allocated by malloc, or NULL on error. On success, this
3492 sets *PALC to the size of the allocated buffer. On failure, this
3493 sets *PALC to 0 for a bad parse, or to 1 for a memory allocation
3496 CP_STATIC_IF_GLIBCPP_V3
3498 cplus_demangle_print (int options, const struct demangle_component *dc,
3499 int estimate, size_t *palc)
3501 struct d_growable_string dgs;
3503 d_growable_string_init (&dgs, estimate);
3505 if (! cplus_demangle_print_callback (options, dc,
3506 d_growable_string_callback_adapter,
3514 *palc = dgs.allocation_failure ? 1 : dgs.alc;
3518 /* Returns the I'th element of the template arglist ARGS, or NULL on
3521 static struct demangle_component *
3522 d_index_template_argument (struct demangle_component *args, int i)
3524 struct demangle_component *a;
3530 if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3536 if (i != 0 || a == NULL)
3542 /* Returns the template argument from the current context indicated by DC,
3543 which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */
3545 static struct demangle_component *
3546 d_lookup_template_argument (struct d_print_info *dpi,
3547 const struct demangle_component *dc)
3549 if (dpi->templates == NULL)
3551 d_print_error (dpi);
3555 return d_index_template_argument
3556 (d_right (dpi->templates->template_decl),
3557 dc->u.s_number.number);
3560 /* Returns a template argument pack used in DC (any will do), or NULL. */
3562 static struct demangle_component *
3563 d_find_pack (struct d_print_info *dpi,
3564 const struct demangle_component *dc)
3566 struct demangle_component *a;
3572 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
3573 a = d_lookup_template_argument (dpi, dc);
3574 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3578 case DEMANGLE_COMPONENT_PACK_EXPANSION:
3581 case DEMANGLE_COMPONENT_LAMBDA:
3582 case DEMANGLE_COMPONENT_NAME:
3583 case DEMANGLE_COMPONENT_OPERATOR:
3584 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
3585 case DEMANGLE_COMPONENT_SUB_STD:
3586 case DEMANGLE_COMPONENT_CHARACTER:
3587 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
3590 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
3591 return d_find_pack (dpi, dc->u.s_extended_operator.name);
3592 case DEMANGLE_COMPONENT_CTOR:
3593 return d_find_pack (dpi, dc->u.s_ctor.name);
3594 case DEMANGLE_COMPONENT_DTOR:
3595 return d_find_pack (dpi, dc->u.s_dtor.name);
3598 a = d_find_pack (dpi, d_left (dc));
3601 return d_find_pack (dpi, d_right (dc));
3605 /* Returns the length of the template argument pack DC. */
3608 d_pack_length (const struct demangle_component *dc)
3611 while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST
3612 && d_left (dc) != NULL)
3620 /* DC is a component of a mangled expression. Print it, wrapped in parens
3624 d_print_subexpr (struct d_print_info *dpi, int options,
3625 const struct demangle_component *dc)
3628 if (dc->type == DEMANGLE_COMPONENT_NAME
3629 || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM)
3632 d_append_char (dpi, '(');
3633 d_print_comp (dpi, options, dc);
3635 d_append_char (dpi, ')');
3638 /* Subroutine to handle components. */
3641 d_print_comp (struct d_print_info *dpi, int options,
3642 const struct demangle_component *dc)
3644 /* Magic variable to let reference smashing skip over the next modifier
3645 without needing to modify *dc. */
3646 const struct demangle_component *mod_inner = NULL;
3650 d_print_error (dpi);
3653 if (d_print_saw_error (dpi))
3658 case DEMANGLE_COMPONENT_NAME:
3659 if ((options & DMGL_JAVA) == 0)
3660 d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len);
3662 d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len);
3665 case DEMANGLE_COMPONENT_QUAL_NAME:
3666 case DEMANGLE_COMPONENT_LOCAL_NAME:
3667 d_print_comp (dpi, options, d_left (dc));
3668 if ((options & DMGL_JAVA) == 0)
3669 d_append_string (dpi, "::");
3671 d_append_char (dpi, '.');
3672 d_print_comp (dpi, options, d_right (dc));
3675 case DEMANGLE_COMPONENT_TYPED_NAME:
3677 struct d_print_mod *hold_modifiers;
3678 struct demangle_component *typed_name;
3679 struct d_print_mod adpm[4];
3681 struct d_print_template dpt;
3683 /* Pass the name down to the type so that it can be printed in
3684 the right place for the type. We also have to pass down
3685 any CV-qualifiers, which apply to the this parameter. */
3686 hold_modifiers = dpi->modifiers;
3689 typed_name = d_left (dc);
3690 while (typed_name != NULL)
3692 if (i >= sizeof adpm / sizeof adpm[0])
3694 d_print_error (dpi);
3698 adpm[i].next = dpi->modifiers;
3699 dpi->modifiers = &adpm[i];
3700 adpm[i].mod = typed_name;
3701 adpm[i].printed = 0;
3702 adpm[i].templates = dpi->templates;
3705 if (typed_name->type != DEMANGLE_COMPONENT_RESTRICT_THIS
3706 && typed_name->type != DEMANGLE_COMPONENT_VOLATILE_THIS
3707 && typed_name->type != DEMANGLE_COMPONENT_CONST_THIS)
3710 typed_name = d_left (typed_name);
3713 if (typed_name == NULL)
3715 d_print_error (dpi);
3719 /* If typed_name is a template, then it applies to the
3720 function type as well. */
3721 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
3723 dpt.next = dpi->templates;
3724 dpi->templates = &dpt;
3725 dpt.template_decl = typed_name;
3728 /* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then
3729 there may be CV-qualifiers on its right argument which
3730 really apply here; this happens when parsing a class which
3731 is local to a function. */
3732 if (typed_name->type == DEMANGLE_COMPONENT_LOCAL_NAME)
3734 struct demangle_component *local_name;
3736 local_name = d_right (typed_name);
3737 if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
3738 local_name = local_name->u.s_unary_num.sub;
3739 while (local_name->type == DEMANGLE_COMPONENT_RESTRICT_THIS
3740 || local_name->type == DEMANGLE_COMPONENT_VOLATILE_THIS
3741 || local_name->type == DEMANGLE_COMPONENT_CONST_THIS)
3743 if (i >= sizeof adpm / sizeof adpm[0])
3745 d_print_error (dpi);
3749 adpm[i] = adpm[i - 1];
3750 adpm[i].next = &adpm[i - 1];
3751 dpi->modifiers = &adpm[i];
3753 adpm[i - 1].mod = local_name;
3754 adpm[i - 1].printed = 0;
3755 adpm[i - 1].templates = dpi->templates;
3758 local_name = d_left (local_name);
3762 d_print_comp (dpi, options, d_right (dc));
3764 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
3765 dpi->templates = dpt.next;
3767 /* If the modifiers didn't get printed by the type, print them
3772 if (! adpm[i].printed)
3774 d_append_char (dpi, ' ');
3775 d_print_mod (dpi, options, adpm[i].mod);
3779 dpi->modifiers = hold_modifiers;
3784 case DEMANGLE_COMPONENT_TEMPLATE:
3786 struct d_print_mod *hold_dpm;
3787 struct demangle_component *dcl;
3789 /* Don't push modifiers into a template definition. Doing so
3790 could give the wrong definition for a template argument.
3791 Instead, treat the template essentially as a name. */
3793 hold_dpm = dpi->modifiers;
3794 dpi->modifiers = NULL;
3798 if ((options & DMGL_JAVA) != 0
3799 && dcl->type == DEMANGLE_COMPONENT_NAME
3800 && dcl->u.s_name.len == 6
3801 && strncmp (dcl->u.s_name.s, "JArray", 6) == 0)
3803 /* Special-case Java arrays, so that JArray<TYPE> appears
3804 instead as TYPE[]. */
3806 d_print_comp (dpi, options, d_right (dc));
3807 d_append_string (dpi, "[]");
3811 d_print_comp (dpi, options, dcl);
3812 if (d_last_char (dpi) == '<')
3813 d_append_char (dpi, ' ');
3814 d_append_char (dpi, '<');
3815 d_print_comp (dpi, options, d_right (dc));
3816 /* Avoid generating two consecutive '>' characters, to avoid
3817 the C++ syntactic ambiguity. */
3818 if (d_last_char (dpi) == '>')
3819 d_append_char (dpi, ' ');
3820 d_append_char (dpi, '>');
3823 dpi->modifiers = hold_dpm;
3828 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
3830 struct d_print_template *hold_dpt;
3831 struct demangle_component *a = d_lookup_template_argument (dpi, dc);
3833 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3834 a = d_index_template_argument (a, dpi->pack_index);
3838 d_print_error (dpi);
3842 /* While processing this parameter, we need to pop the list of
3843 templates. This is because the template parameter may
3844 itself be a reference to a parameter of an outer
3847 hold_dpt = dpi->templates;
3848 dpi->templates = hold_dpt->next;
3850 d_print_comp (dpi, options, a);
3852 dpi->templates = hold_dpt;
3857 case DEMANGLE_COMPONENT_CTOR:
3858 d_print_comp (dpi, options, dc->u.s_ctor.name);
3861 case DEMANGLE_COMPONENT_DTOR:
3862 d_append_char (dpi, '~');
3863 d_print_comp (dpi, options, dc->u.s_dtor.name);
3866 case DEMANGLE_COMPONENT_VTABLE:
3867 d_append_string (dpi, "vtable for ");
3868 d_print_comp (dpi, options, d_left (dc));
3871 case DEMANGLE_COMPONENT_VTT:
3872 d_append_string (dpi, "VTT for ");
3873 d_print_comp (dpi, options, d_left (dc));
3876 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
3877 d_append_string (dpi, "construction vtable for ");
3878 d_print_comp (dpi, options, d_left (dc));
3879 d_append_string (dpi, "-in-");
3880 d_print_comp (dpi, options, d_right (dc));
3883 case DEMANGLE_COMPONENT_TYPEINFO:
3884 d_append_string (dpi, "typeinfo for ");
3885 d_print_comp (dpi, options, d_left (dc));
3888 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
3889 d_append_string (dpi, "typeinfo name for ");
3890 d_print_comp (dpi, options, d_left (dc));
3893 case DEMANGLE_COMPONENT_TYPEINFO_FN:
3894 d_append_string (dpi, "typeinfo fn for ");
3895 d_print_comp (dpi, options, d_left (dc));
3898 case DEMANGLE_COMPONENT_THUNK:
3899 d_append_string (dpi, "non-virtual thunk to ");
3900 d_print_comp (dpi, options, d_left (dc));
3903 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
3904 d_append_string (dpi, "virtual thunk to ");
3905 d_print_comp (dpi, options, d_left (dc));
3908 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
3909 d_append_string (dpi, "covariant return thunk to ");
3910 d_print_comp (dpi, options, d_left (dc));
3913 case DEMANGLE_COMPONENT_JAVA_CLASS:
3914 d_append_string (dpi, "java Class for ");
3915 d_print_comp (dpi, options, d_left (dc));
3918 case DEMANGLE_COMPONENT_GUARD:
3919 d_append_string (dpi, "guard variable for ");
3920 d_print_comp (dpi, options, d_left (dc));
3923 case DEMANGLE_COMPONENT_REFTEMP:
3924 d_append_string (dpi, "reference temporary for ");
3925 d_print_comp (dpi, options, d_left (dc));
3928 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
3929 d_append_string (dpi, "hidden alias for ");
3930 d_print_comp (dpi, options, d_left (dc));
3933 case DEMANGLE_COMPONENT_SUB_STD:
3934 d_append_buffer (dpi, dc->u.s_string.string, dc->u.s_string.len);
3937 case DEMANGLE_COMPONENT_RESTRICT:
3938 case DEMANGLE_COMPONENT_VOLATILE:
3939 case DEMANGLE_COMPONENT_CONST:
3941 struct d_print_mod *pdpm;
3943 /* When printing arrays, it's possible to have cases where the
3944 same CV-qualifier gets pushed on the stack multiple times.
3945 We only need to print it once. */
3947 for (pdpm = dpi->modifiers; pdpm != NULL; pdpm = pdpm->next)
3949 if (! pdpm->printed)
3951 if (pdpm->mod->type != DEMANGLE_COMPONENT_RESTRICT
3952 && pdpm->mod->type != DEMANGLE_COMPONENT_VOLATILE
3953 && pdpm->mod->type != DEMANGLE_COMPONENT_CONST)
3955 if (pdpm->mod->type == dc->type)
3957 d_print_comp (dpi, options, d_left (dc));
3965 case DEMANGLE_COMPONENT_REFERENCE:
3966 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
3968 /* Handle reference smashing: & + && = &. */
3969 const struct demangle_component *sub = d_left (dc);
3970 if (sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
3972 struct demangle_component *a = d_lookup_template_argument (dpi, sub);
3973 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3974 a = d_index_template_argument (a, dpi->pack_index);
3978 d_print_error (dpi);
3985 if (sub->type == DEMANGLE_COMPONENT_REFERENCE
3986 || sub->type == dc->type)
3988 else if (sub->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE)
3989 mod_inner = d_left (sub);
3993 case DEMANGLE_COMPONENT_RESTRICT_THIS:
3994 case DEMANGLE_COMPONENT_VOLATILE_THIS:
3995 case DEMANGLE_COMPONENT_CONST_THIS:
3996 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
3997 case DEMANGLE_COMPONENT_POINTER:
3998 case DEMANGLE_COMPONENT_COMPLEX:
3999 case DEMANGLE_COMPONENT_IMAGINARY:
4002 /* We keep a list of modifiers on the stack. */
4003 struct d_print_mod dpm;
4005 dpm.next = dpi->modifiers;
4006 dpi->modifiers = &dpm;
4009 dpm.templates = dpi->templates;
4012 mod_inner = d_left (dc);
4014 d_print_comp (dpi, options, mod_inner);
4016 /* If the modifier didn't get printed by the type, print it
4019 d_print_mod (dpi, options, dc);
4021 dpi->modifiers = dpm.next;
4026 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
4027 if ((options & DMGL_JAVA) == 0)
4028 d_append_buffer (dpi, dc->u.s_builtin.type->name,
4029 dc->u.s_builtin.type->len);
4031 d_append_buffer (dpi, dc->u.s_builtin.type->java_name,
4032 dc->u.s_builtin.type->java_len);
4035 case DEMANGLE_COMPONENT_VENDOR_TYPE:
4036 d_print_comp (dpi, options, d_left (dc));
4039 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
4041 if ((options & DMGL_RET_POSTFIX) != 0)
4042 d_print_function_type (dpi,
4043 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
4044 dc, dpi->modifiers);
4046 /* Print return type if present */
4047 if (d_left (dc) != NULL && (options & DMGL_RET_POSTFIX) != 0)
4048 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
4050 else if (d_left (dc) != NULL && (options & DMGL_RET_DROP) == 0)
4052 struct d_print_mod dpm;
4054 /* We must pass this type down as a modifier in order to
4055 print it in the right location. */
4056 dpm.next = dpi->modifiers;
4057 dpi->modifiers = &dpm;
4060 dpm.templates = dpi->templates;
4062 d_print_comp (dpi, options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
4065 dpi->modifiers = dpm.next;
4070 /* In standard prefix notation, there is a space between the
4071 return type and the function signature. */
4072 if ((options & DMGL_RET_POSTFIX) == 0)
4073 d_append_char (dpi, ' ');
4076 if ((options & DMGL_RET_POSTFIX) == 0)
4077 d_print_function_type (dpi,
4078 options & ~(DMGL_RET_POSTFIX | DMGL_RET_DROP),
4079 dc, dpi->modifiers);
4084 case DEMANGLE_COMPONENT_ARRAY_TYPE:
4086 struct d_print_mod *hold_modifiers;
4087 struct d_print_mod adpm[4];
4089 struct d_print_mod *pdpm;
4091 /* We must pass this type down as a modifier in order to print
4092 multi-dimensional arrays correctly. If the array itself is
4093 CV-qualified, we act as though the element type were
4094 CV-qualified. We do this by copying the modifiers down
4095 rather than fiddling pointers, so that we don't wind up
4096 with a d_print_mod higher on the stack pointing into our
4097 stack frame after we return. */
4099 hold_modifiers = dpi->modifiers;
4101 adpm[0].next = hold_modifiers;
4102 dpi->modifiers = &adpm[0];
4104 adpm[0].printed = 0;
4105 adpm[0].templates = dpi->templates;
4108 pdpm = hold_modifiers;
4110 && (pdpm->mod->type == DEMANGLE_COMPONENT_RESTRICT
4111 || pdpm->mod->type == DEMANGLE_COMPONENT_VOLATILE
4112 || pdpm->mod->type == DEMANGLE_COMPONENT_CONST))
4114 if (! pdpm->printed)
4116 if (i >= sizeof adpm / sizeof adpm[0])
4118 d_print_error (dpi);
4123 adpm[i].next = dpi->modifiers;
4124 dpi->modifiers = &adpm[i];
4132 d_print_comp (dpi, options, d_right (dc));
4134 dpi->modifiers = hold_modifiers;
4136 if (adpm[0].printed)
4142 d_print_mod (dpi, options, adpm[i].mod);
4145 d_print_array_type (dpi, options, dc, dpi->modifiers);
4150 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
4151 case DEMANGLE_COMPONENT_VECTOR_TYPE:
4153 struct d_print_mod dpm;
4155 dpm.next = dpi->modifiers;
4156 dpi->modifiers = &dpm;
4159 dpm.templates = dpi->templates;
4161 d_print_comp (dpi, options, d_right (dc));
4163 /* If the modifier didn't get printed by the type, print it
4166 d_print_mod (dpi, options, dc);
4168 dpi->modifiers = dpm.next;
4173 case DEMANGLE_COMPONENT_FIXED_TYPE:
4174 if (dc->u.s_fixed.sat)
4175 d_append_string (dpi, "_Sat ");
4176 /* Don't print "int _Accum". */
4177 if (dc->u.s_fixed.length->u.s_builtin.type
4178 != &cplus_demangle_builtin_types['i'-'a'])
4180 d_print_comp (dpi, options, dc->u.s_fixed.length);
4181 d_append_char (dpi, ' ');
4183 if (dc->u.s_fixed.accum)
4184 d_append_string (dpi, "_Accum");
4186 d_append_string (dpi, "_Fract");
4189 case DEMANGLE_COMPONENT_ARGLIST:
4190 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
4191 if (d_left (dc) != NULL)
4192 d_print_comp (dpi, options, d_left (dc));
4193 if (d_right (dc) != NULL)
4196 unsigned long int flush_count;
4197 /* Make sure ", " isn't flushed by d_append_string, otherwise
4198 dpi->len -= 2 wouldn't work. */
4199 if (dpi->len >= sizeof (dpi->buf) - 2)
4200 d_print_flush (dpi);
4201 d_append_string (dpi, ", ");
4203 flush_count = dpi->flush_count;
4204 d_print_comp (dpi, options, d_right (dc));
4205 /* If that didn't print anything (which can happen with empty
4206 template argument packs), remove the comma and space. */
4207 if (dpi->flush_count == flush_count && dpi->len == len)
4212 case DEMANGLE_COMPONENT_OPERATOR:
4216 d_append_string (dpi, "operator");
4217 c = dc->u.s_operator.op->name[0];
4219 d_append_char (dpi, ' ');
4220 d_append_buffer (dpi, dc->u.s_operator.op->name,
4221 dc->u.s_operator.op->len);
4225 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4226 d_append_string (dpi, "operator ");
4227 d_print_comp (dpi, options, dc->u.s_extended_operator.name);
4230 case DEMANGLE_COMPONENT_CAST:
4231 d_append_string (dpi, "operator ");
4232 d_print_cast (dpi, options, dc);
4235 case DEMANGLE_COMPONENT_UNARY:
4236 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
4237 && d_left (dc)->u.s_operator.op->len == 1
4238 && d_left (dc)->u.s_operator.op->name[0] == '&'
4239 && d_right (dc)->type == DEMANGLE_COMPONENT_TYPED_NAME
4240 && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_QUAL_NAME
4241 && d_right (d_right (dc))->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
4243 /* Address of a function (therefore in an expression context) must
4244 have its argument list suppressed.
4246 unary operator ... dc
4247 operator & ... d_left (dc)
4248 typed name ... d_right (dc)
4249 qualified name ... d_left (d_right (dc))
4251 function type ... d_right (d_right (dc))
4255 d_print_expr_op (dpi, options, d_left (dc));
4256 d_print_comp (dpi, options, d_left (d_right (dc)));
4259 else if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
4260 && d_left (dc)->u.s_operator.op->len == 1
4261 && d_left (dc)->u.s_operator.op->name[0] == '&'
4262 && d_right (dc)->type == DEMANGLE_COMPONENT_QUAL_NAME)
4264 /* Keep also already processed variant without the argument list.
4266 unary operator ... dc
4267 operator & ... d_left (dc)
4268 qualified name ... d_right (dc)
4271 d_print_expr_op (dpi, options, d_left (dc));
4272 d_print_comp (dpi, options, d_right (dc));
4275 else if (d_left (dc)->type != DEMANGLE_COMPONENT_CAST)
4276 d_print_expr_op (dpi, options, d_left (dc));
4279 d_append_char (dpi, '(');
4280 d_print_cast (dpi, options, d_left (dc));
4281 d_append_char (dpi, ')');
4283 d_print_subexpr (dpi, options, d_right (dc));
4286 case DEMANGLE_COMPONENT_BINARY:
4287 if (d_right (dc)->type != DEMANGLE_COMPONENT_BINARY_ARGS)
4289 d_print_error (dpi);
4293 /* We wrap an expression which uses the greater-than operator in
4294 an extra layer of parens so that it does not get confused
4295 with the '>' which ends the template parameters. */
4296 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
4297 && d_left (dc)->u.s_operator.op->len == 1
4298 && d_left (dc)->u.s_operator.op->name[0] == '>')
4299 d_append_char (dpi, '(');
4301 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") == 0
4302 && d_left (d_right (dc))->type == DEMANGLE_COMPONENT_TYPED_NAME)
4304 /* Function call used in an expression should not have printed types
4305 of the function arguments. Values of the function arguments still
4306 get printed below. */
4308 const struct demangle_component *func = d_left (d_right (dc));
4310 if (d_right (func)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE)
4311 d_print_error (dpi);
4312 d_print_subexpr (dpi, options, d_left (func));
4315 d_print_subexpr (dpi, options, d_left (d_right (dc)));
4316 if (strcmp (d_left (dc)->u.s_operator.op->code, "ix") == 0)
4318 d_append_char (dpi, '[');
4319 d_print_comp (dpi, options, d_right (d_right (dc)));
4320 d_append_char (dpi, ']');
4324 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") != 0)
4325 d_print_expr_op (dpi, options, d_left (dc));
4326 d_print_subexpr (dpi, options, d_right (d_right (dc)));
4329 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
4330 && d_left (dc)->u.s_operator.op->len == 1
4331 && d_left (dc)->u.s_operator.op->name[0] == '>')
4332 d_append_char (dpi, ')');
4336 case DEMANGLE_COMPONENT_BINARY_ARGS:
4337 /* We should only see this as part of DEMANGLE_COMPONENT_BINARY. */
4338 d_print_error (dpi);
4341 case DEMANGLE_COMPONENT_TRINARY:
4342 if (d_right (dc)->type != DEMANGLE_COMPONENT_TRINARY_ARG1
4343 || d_right (d_right (dc))->type != DEMANGLE_COMPONENT_TRINARY_ARG2)
4345 d_print_error (dpi);
4348 d_print_subexpr (dpi, options, d_left (d_right (dc)));
4349 d_print_expr_op (dpi, options, d_left (dc));
4350 d_print_subexpr (dpi, options, d_left (d_right (d_right (dc))));
4351 d_append_string (dpi, " : ");
4352 d_print_subexpr (dpi, options, d_right (d_right (d_right (dc))));
4355 case DEMANGLE_COMPONENT_TRINARY_ARG1:
4356 case DEMANGLE_COMPONENT_TRINARY_ARG2:
4357 /* We should only see these are part of DEMANGLE_COMPONENT_TRINARY. */
4358 d_print_error (dpi);
4361 case DEMANGLE_COMPONENT_LITERAL:
4362 case DEMANGLE_COMPONENT_LITERAL_NEG:
4364 enum d_builtin_type_print tp;
4366 /* For some builtin types, produce simpler output. */
4367 tp = D_PRINT_DEFAULT;
4368 if (d_left (dc)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE)
4370 tp = d_left (dc)->u.s_builtin.type->print;
4374 case D_PRINT_UNSIGNED:
4376 case D_PRINT_UNSIGNED_LONG:
4377 case D_PRINT_LONG_LONG:
4378 case D_PRINT_UNSIGNED_LONG_LONG:
4379 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME)
4381 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
4382 d_append_char (dpi, '-');
4383 d_print_comp (dpi, options, d_right (dc));
4388 case D_PRINT_UNSIGNED:
4389 d_append_char (dpi, 'u');
4392 d_append_char (dpi, 'l');
4394 case D_PRINT_UNSIGNED_LONG:
4395 d_append_string (dpi, "ul");
4397 case D_PRINT_LONG_LONG:
4398 d_append_string (dpi, "ll");
4400 case D_PRINT_UNSIGNED_LONG_LONG:
4401 d_append_string (dpi, "ull");
4409 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME
4410 && d_right (dc)->u.s_name.len == 1
4411 && dc->type == DEMANGLE_COMPONENT_LITERAL)
4413 switch (d_right (dc)->u.s_name.s[0])
4416 d_append_string (dpi, "false");
4419 d_append_string (dpi, "true");
4432 d_append_char (dpi, '(');
4433 d_print_comp (dpi, options, d_left (dc));
4434 d_append_char (dpi, ')');
4435 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
4436 d_append_char (dpi, '-');
4437 if (tp == D_PRINT_FLOAT)
4438 d_append_char (dpi, '[');
4439 d_print_comp (dpi, options, d_right (dc));
4440 if (tp == D_PRINT_FLOAT)
4441 d_append_char (dpi, ']');
4445 case DEMANGLE_COMPONENT_NUMBER:
4446 d_append_num (dpi, dc->u.s_number.number);
4449 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
4450 d_append_string (dpi, "java resource ");
4451 d_print_comp (dpi, options, d_left (dc));
4454 case DEMANGLE_COMPONENT_COMPOUND_NAME:
4455 d_print_comp (dpi, options, d_left (dc));
4456 d_print_comp (dpi, options, d_right (dc));
4459 case DEMANGLE_COMPONENT_CHARACTER:
4460 d_append_char (dpi, dc->u.s_character.character);
4463 case DEMANGLE_COMPONENT_DECLTYPE:
4464 d_append_string (dpi, "decltype (");
4465 d_print_comp (dpi, options, d_left (dc));
4466 d_append_char (dpi, ')');
4469 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4473 struct demangle_component *a = d_find_pack (dpi, d_left (dc));
4476 /* d_find_pack won't find anything if the only packs involved
4477 in this expansion are function parameter packs; in that
4478 case, just print the pattern and "...". */
4479 d_print_subexpr (dpi, options, d_left (dc));
4480 d_append_string (dpi, "...");
4484 len = d_pack_length (a);
4486 for (i = 0; i < len; ++i)
4488 dpi->pack_index = i;
4489 d_print_comp (dpi, options, dc);
4491 d_append_string (dpi, ", ");
4496 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
4498 long num = dc->u.s_number.number;
4500 d_append_string (dpi, "this");
4503 d_append_string (dpi, "{parm#");
4504 d_append_num (dpi, num);
4505 d_append_char (dpi, '}');
4510 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
4511 d_append_string (dpi, "global constructors keyed to ");
4512 d_print_comp (dpi, options, dc->u.s_binary.left);
4515 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
4516 d_append_string (dpi, "global destructors keyed to ");
4517 d_print_comp (dpi, options, dc->u.s_binary.left);
4520 case DEMANGLE_COMPONENT_LAMBDA:
4521 d_append_string (dpi, "{lambda(");
4522 d_print_comp (dpi, options, dc->u.s_unary_num.sub);
4523 d_append_string (dpi, ")#");
4524 d_append_num (dpi, dc->u.s_unary_num.num + 1);
4525 d_append_char (dpi, '}');
4528 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
4529 d_append_string (dpi, "{unnamed type#");
4530 d_append_num (dpi, dc->u.s_number.number + 1);
4531 d_append_char (dpi, '}');
4534 case DEMANGLE_COMPONENT_CLONE:
4535 d_print_comp (dpi, options, d_left (dc));
4536 d_append_string (dpi, " [clone ");
4537 d_print_comp (dpi, options, d_right (dc));
4538 d_append_char (dpi, ']');
4542 d_print_error (dpi);
4547 /* Print a Java dentifier. For Java we try to handle encoded extended
4548 Unicode characters. The C++ ABI doesn't mention Unicode encoding,
4549 so we don't it for C++. Characters are encoded as
4553 d_print_java_identifier (struct d_print_info *dpi, const char *name, int len)
4559 for (p = name; p < end; ++p)
4570 for (q = p + 3; q < end; ++q)
4576 else if (*q >= 'A' && *q <= 'F')
4577 dig = *q - 'A' + 10;
4578 else if (*q >= 'a' && *q <= 'f')
4579 dig = *q - 'a' + 10;
4585 /* If the Unicode character is larger than 256, we don't try
4586 to deal with it here. FIXME. */
4587 if (q < end && *q == '_' && c < 256)
4589 d_append_char (dpi, c);
4595 d_append_char (dpi, *p);
4599 /* Print a list of modifiers. SUFFIX is 1 if we are printing
4600 qualifiers on this after printing a function. */
4603 d_print_mod_list (struct d_print_info *dpi, int options,
4604 struct d_print_mod *mods, int suffix)
4606 struct d_print_template *hold_dpt;
4608 if (mods == NULL || d_print_saw_error (dpi))
4613 && (mods->mod->type == DEMANGLE_COMPONENT_RESTRICT_THIS
4614 || mods->mod->type == DEMANGLE_COMPONENT_VOLATILE_THIS
4615 || mods->mod->type == DEMANGLE_COMPONENT_CONST_THIS)))
4617 d_print_mod_list (dpi, options, mods->next, suffix);
4623 hold_dpt = dpi->templates;
4624 dpi->templates = mods->templates;
4626 if (mods->mod->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
4628 d_print_function_type (dpi, options, mods->mod, mods->next);
4629 dpi->templates = hold_dpt;
4632 else if (mods->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
4634 d_print_array_type (dpi, options, mods->mod, mods->next);
4635 dpi->templates = hold_dpt;
4638 else if (mods->mod->type == DEMANGLE_COMPONENT_LOCAL_NAME)
4640 struct d_print_mod *hold_modifiers;
4641 struct demangle_component *dc;
4643 /* When this is on the modifier stack, we have pulled any
4644 qualifiers off the right argument already. Otherwise, we
4645 print it as usual, but don't let the left argument see any
4648 hold_modifiers = dpi->modifiers;
4649 dpi->modifiers = NULL;
4650 d_print_comp (dpi, options, d_left (mods->mod));
4651 dpi->modifiers = hold_modifiers;
4653 if ((options & DMGL_JAVA) == 0)
4654 d_append_string (dpi, "::");
4656 d_append_char (dpi, '.');
4658 dc = d_right (mods->mod);
4660 if (dc->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4662 d_append_string (dpi, "{default arg#");
4663 d_append_num (dpi, dc->u.s_unary_num.num + 1);
4664 d_append_string (dpi, "}::");
4665 dc = dc->u.s_unary_num.sub;
4668 while (dc->type == DEMANGLE_COMPONENT_RESTRICT_THIS
4669 || dc->type == DEMANGLE_COMPONENT_VOLATILE_THIS
4670 || dc->type == DEMANGLE_COMPONENT_CONST_THIS)
4673 d_print_comp (dpi, options, dc);
4675 dpi->templates = hold_dpt;
4679 d_print_mod (dpi, options, mods->mod);
4681 dpi->templates = hold_dpt;
4683 d_print_mod_list (dpi, options, mods->next, suffix);
4686 /* Print a modifier. */
4689 d_print_mod (struct d_print_info *dpi, int options,
4690 const struct demangle_component *mod)
4694 case DEMANGLE_COMPONENT_RESTRICT:
4695 case DEMANGLE_COMPONENT_RESTRICT_THIS:
4696 d_append_string (dpi, " restrict");
4698 case DEMANGLE_COMPONENT_VOLATILE:
4699 case DEMANGLE_COMPONENT_VOLATILE_THIS:
4700 d_append_string (dpi, " volatile");
4702 case DEMANGLE_COMPONENT_CONST:
4703 case DEMANGLE_COMPONENT_CONST_THIS:
4704 d_append_string (dpi, " const");
4706 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
4707 d_append_char (dpi, ' ');
4708 d_print_comp (dpi, options, d_right (mod));
4710 case DEMANGLE_COMPONENT_POINTER:
4711 /* There is no pointer symbol in Java. */
4712 if ((options & DMGL_JAVA) == 0)
4713 d_append_char (dpi, '*');
4715 case DEMANGLE_COMPONENT_REFERENCE:
4716 d_append_char (dpi, '&');
4718 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
4719 d_append_string (dpi, "&&");
4721 case DEMANGLE_COMPONENT_COMPLEX:
4722 d_append_string (dpi, "complex ");
4724 case DEMANGLE_COMPONENT_IMAGINARY:
4725 d_append_string (dpi, "imaginary ");
4727 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
4728 if (d_last_char (dpi) != '(')
4729 d_append_char (dpi, ' ');
4730 d_print_comp (dpi, options, d_left (mod));
4731 d_append_string (dpi, "::*");
4733 case DEMANGLE_COMPONENT_TYPED_NAME:
4734 d_print_comp (dpi, options, d_left (mod));
4736 case DEMANGLE_COMPONENT_VECTOR_TYPE:
4737 d_append_string (dpi, " __vector(");
4738 d_print_comp (dpi, options, d_left (mod));
4739 d_append_char (dpi, ')');
4743 /* Otherwise, we have something that won't go back on the
4744 modifier stack, so we can just print it. */
4745 d_print_comp (dpi, options, mod);
4750 /* Print a function type, except for the return type. */
4753 d_print_function_type (struct d_print_info *dpi, int options,
4754 const struct demangle_component *dc,
4755 struct d_print_mod *mods)
4759 struct d_print_mod *p;
4760 struct d_print_mod *hold_modifiers;
4764 for (p = mods; p != NULL; p = p->next)
4769 switch (p->mod->type)
4771 case DEMANGLE_COMPONENT_POINTER:
4772 case DEMANGLE_COMPONENT_REFERENCE:
4773 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
4776 case DEMANGLE_COMPONENT_RESTRICT:
4777 case DEMANGLE_COMPONENT_VOLATILE:
4778 case DEMANGLE_COMPONENT_CONST:
4779 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
4780 case DEMANGLE_COMPONENT_COMPLEX:
4781 case DEMANGLE_COMPONENT_IMAGINARY:
4782 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
4786 case DEMANGLE_COMPONENT_RESTRICT_THIS:
4787 case DEMANGLE_COMPONENT_VOLATILE_THIS:
4788 case DEMANGLE_COMPONENT_CONST_THIS:
4801 if (d_last_char (dpi) != '('
4802 && d_last_char (dpi) != '*')
4805 if (need_space && d_last_char (dpi) != ' ')
4806 d_append_char (dpi, ' ');
4807 d_append_char (dpi, '(');
4810 hold_modifiers = dpi->modifiers;
4811 dpi->modifiers = NULL;
4813 d_print_mod_list (dpi, options, mods, 0);
4816 d_append_char (dpi, ')');
4818 d_append_char (dpi, '(');
4820 if (d_right (dc) != NULL)
4821 d_print_comp (dpi, options, d_right (dc));
4823 d_append_char (dpi, ')');
4825 d_print_mod_list (dpi, options, mods, 1);
4827 dpi->modifiers = hold_modifiers;
4830 /* Print an array type, except for the element type. */
4833 d_print_array_type (struct d_print_info *dpi, int options,
4834 const struct demangle_component *dc,
4835 struct d_print_mod *mods)
4843 struct d_print_mod *p;
4846 for (p = mods; p != NULL; p = p->next)
4850 if (p->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
4865 d_append_string (dpi, " (");
4867 d_print_mod_list (dpi, options, mods, 0);
4870 d_append_char (dpi, ')');
4874 d_append_char (dpi, ' ');
4876 d_append_char (dpi, '[');
4878 if (d_left (dc) != NULL)
4879 d_print_comp (dpi, options, d_left (dc));
4881 d_append_char (dpi, ']');
4884 /* Print an operator in an expression. */
4887 d_print_expr_op (struct d_print_info *dpi, int options,
4888 const struct demangle_component *dc)
4890 if (dc->type == DEMANGLE_COMPONENT_OPERATOR)
4891 d_append_buffer (dpi, dc->u.s_operator.op->name,
4892 dc->u.s_operator.op->len);
4894 d_print_comp (dpi, options, dc);
4900 d_print_cast (struct d_print_info *dpi, int options,
4901 const struct demangle_component *dc)
4903 if (d_left (dc)->type != DEMANGLE_COMPONENT_TEMPLATE)
4904 d_print_comp (dpi, options, d_left (dc));
4907 struct d_print_mod *hold_dpm;
4908 struct d_print_template dpt;
4910 /* It appears that for a templated cast operator, we need to put
4911 the template parameters in scope for the operator name, but
4912 not for the parameters. The effect is that we need to handle
4913 the template printing here. */
4915 hold_dpm = dpi->modifiers;
4916 dpi->modifiers = NULL;
4918 dpt.next = dpi->templates;
4919 dpi->templates = &dpt;
4920 dpt.template_decl = d_left (dc);
4922 d_print_comp (dpi, options, d_left (d_left (dc)));
4924 dpi->templates = dpt.next;
4926 if (d_last_char (dpi) == '<')
4927 d_append_char (dpi, ' ');
4928 d_append_char (dpi, '<');
4929 d_print_comp (dpi, options, d_right (d_left (dc)));
4930 /* Avoid generating two consecutive '>' characters, to avoid
4931 the C++ syntactic ambiguity. */
4932 if (d_last_char (dpi) == '>')
4933 d_append_char (dpi, ' ');
4934 d_append_char (dpi, '>');
4936 dpi->modifiers = hold_dpm;
4940 /* Initialize the information structure we use to pass around
4943 CP_STATIC_IF_GLIBCPP_V3
4945 cplus_demangle_init_info (const char *mangled, int options, size_t len,
4949 di->send = mangled + len;
4950 di->options = options;
4954 /* We can not need more components than twice the number of chars in
4955 the mangled string. Most components correspond directly to
4956 chars, but the ARGLIST types are exceptions. */
4957 di->num_comps = 2 * len;
4960 /* Similarly, we can not need more substitutions than there are
4961 chars in the mangled string. */
4966 di->last_name = NULL;
4971 /* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI
4972 mangled name, return strings in repeated callback giving the demangled
4973 name. OPTIONS is the usual libiberty demangler options. On success,
4974 this returns 1. On failure, returns 0. */
4977 d_demangle_callback (const char *mangled, int options,
4978 demangle_callbackref callback, void *opaque)
4989 struct demangle_component *dc;
4992 if (mangled[0] == '_' && mangled[1] == 'Z')
4994 else if (strncmp (mangled, "_GLOBAL_", 8) == 0
4995 && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$')
4996 && (mangled[9] == 'D' || mangled[9] == 'I')
4997 && mangled[10] == '_')
4998 type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS;
5001 if ((options & DMGL_TYPES) == 0)
5006 cplus_demangle_init_info (mangled, options, strlen (mangled), &di);
5009 #ifdef CP_DYNAMIC_ARRAYS
5010 __extension__ struct demangle_component comps[di.num_comps];
5011 __extension__ struct demangle_component *subs[di.num_subs];
5016 di.comps = alloca (di.num_comps * sizeof (*di.comps));
5017 di.subs = alloca (di.num_subs * sizeof (*di.subs));
5023 dc = cplus_demangle_type (&di);
5026 dc = cplus_demangle_mangled_name (&di, 1);
5028 case DCT_GLOBAL_CTORS:
5029 case DCT_GLOBAL_DTORS:
5030 d_advance (&di, 11);
5031 dc = d_make_comp (&di,
5032 (type == DCT_GLOBAL_CTORS
5033 ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS
5034 : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS),
5035 d_make_demangle_mangled_name (&di, d_str (&di)),
5037 d_advance (&di, strlen (d_str (&di)));
5041 /* If DMGL_PARAMS is set, then if we didn't consume the entire
5042 mangled string, then we didn't successfully demangle it. If
5043 DMGL_PARAMS is not set, we didn't look at the trailing
5045 if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0')
5048 #ifdef CP_DEMANGLE_DEBUG
5052 status = (dc != NULL)
5053 ? cplus_demangle_print_callback (options, dc, callback, opaque)
5060 /* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled
5061 name, return a buffer allocated with malloc holding the demangled
5062 name. OPTIONS is the usual libiberty demangler options. On
5063 success, this sets *PALC to the allocated size of the returned
5064 buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for
5065 a memory allocation failure, and returns NULL. */
5068 d_demangle (const char *mangled, int options, size_t *palc)
5070 struct d_growable_string dgs;
5073 d_growable_string_init (&dgs, 0);
5075 status = d_demangle_callback (mangled, options,
5076 d_growable_string_callback_adapter, &dgs);
5084 *palc = dgs.allocation_failure ? 1 : dgs.alc;
5088 #if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
5090 extern char *__cxa_demangle (const char *, char *, size_t *, int *);
5092 /* ia64 ABI-mandated entry point in the C++ runtime library for
5093 performing demangling. MANGLED_NAME is a NUL-terminated character
5094 string containing the name to be demangled.
5096 OUTPUT_BUFFER is a region of memory, allocated with malloc, of
5097 *LENGTH bytes, into which the demangled name is stored. If
5098 OUTPUT_BUFFER is not long enough, it is expanded using realloc.
5099 OUTPUT_BUFFER may instead be NULL; in that case, the demangled name
5100 is placed in a region of memory allocated with malloc.
5102 If LENGTH is non-NULL, the length of the buffer containing the
5103 demangled name, is placed in *LENGTH.
5105 The return value is a pointer to the start of the NUL-terminated
5106 demangled name, or NULL if the demangling fails. The caller is
5107 responsible for deallocating this memory using free.
5109 *STATUS is set to one of the following values:
5110 0: The demangling operation succeeded.
5111 -1: A memory allocation failure occurred.
5112 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
5113 -3: One of the arguments is invalid.
5115 The demangling is performed using the C++ ABI mangling rules, with
5119 __cxa_demangle (const char *mangled_name, char *output_buffer,
5120 size_t *length, int *status)
5125 if (mangled_name == NULL)
5132 if (output_buffer != NULL && length == NULL)
5139 demangled = d_demangle (mangled_name, DMGL_PARAMS | DMGL_TYPES, &alc);
5141 if (demangled == NULL)
5153 if (output_buffer == NULL)
5160 if (strlen (demangled) < *length)
5162 strcpy (output_buffer, demangled);
5164 demangled = output_buffer;
5168 free (output_buffer);
5179 extern int __gcclibcxx_demangle_callback (const char *,
5181 (const char *, size_t, void *),
5184 /* Alternative, allocationless entry point in the C++ runtime library
5185 for performing demangling. MANGLED_NAME is a NUL-terminated character
5186 string containing the name to be demangled.
5188 CALLBACK is a callback function, called with demangled string
5189 segments as demangling progresses; it is called at least once,
5190 but may be called more than once. OPAQUE is a generalized pointer
5191 used as a callback argument.
5193 The return code is one of the following values, equivalent to
5194 the STATUS values of __cxa_demangle() (excluding -1, since this
5195 function performs no memory allocations):
5196 0: The demangling operation succeeded.
5197 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
5198 -3: One of the arguments is invalid.
5200 The demangling is performed using the C++ ABI mangling rules, with
5204 __gcclibcxx_demangle_callback (const char *mangled_name,
5205 void (*callback) (const char *, size_t, void *),
5210 if (mangled_name == NULL || callback == NULL)
5213 status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES,
5221 #else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */
5223 /* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI
5224 mangled name, return a buffer allocated with malloc holding the
5225 demangled name. Otherwise, return NULL. */
5228 cplus_demangle_v3 (const char *mangled, int options)
5232 return d_demangle (mangled, options, &alc);
5236 cplus_demangle_v3_callback (const char *mangled, int options,
5237 demangle_callbackref callback, void *opaque)
5239 return d_demangle_callback (mangled, options, callback, opaque);
5242 /* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling
5243 conventions, but the output formatting is a little different.
5244 This instructs the C++ demangler not to emit pointer characters ("*"), to
5245 use Java's namespace separator symbol ("." instead of "::"), and to output
5246 JArray<TYPE> as TYPE[]. */
5249 java_demangle_v3 (const char *mangled)
5253 return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, &alc);
5257 java_demangle_v3_callback (const char *mangled,
5258 demangle_callbackref callback, void *opaque)
5260 return d_demangle_callback (mangled,
5261 DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX,
5265 #endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */
5267 #ifndef IN_GLIBCPP_V3
5269 /* Demangle a string in order to find out whether it is a constructor
5270 or destructor. Return non-zero on success. Set *CTOR_KIND and
5271 *DTOR_KIND appropriately. */
5274 is_ctor_or_dtor (const char *mangled,
5275 enum gnu_v3_ctor_kinds *ctor_kind,
5276 enum gnu_v3_dtor_kinds *dtor_kind)
5279 struct demangle_component *dc;
5282 *ctor_kind = (enum gnu_v3_ctor_kinds) 0;
5283 *dtor_kind = (enum gnu_v3_dtor_kinds) 0;
5285 cplus_demangle_init_info (mangled, DMGL_GNU_V3, strlen (mangled), &di);
5288 #ifdef CP_DYNAMIC_ARRAYS
5289 __extension__ struct demangle_component comps[di.num_comps];
5290 __extension__ struct demangle_component *subs[di.num_subs];
5295 di.comps = alloca (di.num_comps * sizeof (*di.comps));
5296 di.subs = alloca (di.num_subs * sizeof (*di.subs));
5299 dc = cplus_demangle_mangled_name (&di, 1);
5301 /* Note that because we did not pass DMGL_PARAMS, we don't expect
5302 to demangle the entire string. */
5312 case DEMANGLE_COMPONENT_TYPED_NAME:
5313 case DEMANGLE_COMPONENT_TEMPLATE:
5314 case DEMANGLE_COMPONENT_RESTRICT_THIS:
5315 case DEMANGLE_COMPONENT_VOLATILE_THIS:
5316 case DEMANGLE_COMPONENT_CONST_THIS:
5319 case DEMANGLE_COMPONENT_QUAL_NAME:
5320 case DEMANGLE_COMPONENT_LOCAL_NAME:
5323 case DEMANGLE_COMPONENT_CTOR:
5324 *ctor_kind = dc->u.s_ctor.kind;
5328 case DEMANGLE_COMPONENT_DTOR:
5329 *dtor_kind = dc->u.s_dtor.kind;
5340 /* Return whether NAME is the mangled form of a g++ V3 ABI constructor
5341 name. A non-zero return indicates the type of constructor. */
5343 enum gnu_v3_ctor_kinds
5344 is_gnu_v3_mangled_ctor (const char *name)
5346 enum gnu_v3_ctor_kinds ctor_kind;
5347 enum gnu_v3_dtor_kinds dtor_kind;
5349 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
5350 return (enum gnu_v3_ctor_kinds) 0;
5355 /* Return whether NAME is the mangled form of a g++ V3 ABI destructor
5356 name. A non-zero return indicates the type of destructor. */
5358 enum gnu_v3_dtor_kinds
5359 is_gnu_v3_mangled_dtor (const char *name)
5361 enum gnu_v3_ctor_kinds ctor_kind;
5362 enum gnu_v3_dtor_kinds dtor_kind;
5364 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
5365 return (enum gnu_v3_dtor_kinds) 0;
5369 #endif /* IN_GLIBCPP_V3 */
5371 #ifdef STANDALONE_DEMANGLER
5374 #include "dyn-string.h"
5376 static void print_usage (FILE* fp, int exit_value);
5378 #define IS_ALPHA(CHAR) \
5379 (((CHAR) >= 'a' && (CHAR) <= 'z') \
5380 || ((CHAR) >= 'A' && (CHAR) <= 'Z'))
5382 /* Non-zero if CHAR is a character than can occur in a mangled name. */
5383 #define is_mangled_char(CHAR) \
5384 (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \
5385 || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$')
5387 /* The name of this program, as invoked. */
5388 const char* program_name;
5390 /* Prints usage summary to FP and then exits with EXIT_VALUE. */
5393 print_usage (FILE* fp, int exit_value)
5395 fprintf (fp, "Usage: %s [options] [names ...]\n", program_name);
5396 fprintf (fp, "Options:\n");
5397 fprintf (fp, " -h,--help Display this message.\n");
5398 fprintf (fp, " -p,--no-params Don't display function parameters\n");
5399 fprintf (fp, " -v,--verbose Produce verbose demanglings.\n");
5400 fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n");
5405 /* Option specification for getopt_long. */
5406 static const struct option long_options[] =
5408 { "help", no_argument, NULL, 'h' },
5409 { "no-params", no_argument, NULL, 'p' },
5410 { "verbose", no_argument, NULL, 'v' },
5411 { NULL, no_argument, NULL, 0 },
5414 /* Main entry for a demangling filter executable. It will demangle
5415 its command line arguments, if any. If none are provided, it will
5416 filter stdin to stdout, replacing any recognized mangled C++ names
5417 with their demangled equivalents. */
5420 main (int argc, char *argv[])
5424 int options = DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES;
5426 /* Use the program name of this program, as invoked. */
5427 program_name = argv[0];
5429 /* Parse options. */
5432 opt_char = getopt_long (argc, argv, "hpv", long_options, NULL);
5435 case '?': /* Unrecognized option. */
5436 print_usage (stderr, 1);
5440 print_usage (stdout, 0);
5444 options &= ~ DMGL_PARAMS;
5448 options |= DMGL_VERBOSE;
5452 while (opt_char != -1);
5455 /* No command line arguments were provided. Filter stdin. */
5457 dyn_string_t mangled = dyn_string_new (3);
5460 /* Read all of input. */
5461 while (!feof (stdin))
5465 /* Pile characters into mangled until we hit one that can't
5466 occur in a mangled name. */
5468 while (!feof (stdin) && is_mangled_char (c))
5470 dyn_string_append_char (mangled, c);
5476 if (dyn_string_length (mangled) > 0)
5478 #ifdef IN_GLIBCPP_V3
5479 s = __cxa_demangle (dyn_string_buf (mangled), NULL, NULL, NULL);
5481 s = cplus_demangle_v3 (dyn_string_buf (mangled), options);
5491 /* It might not have been a mangled name. Print the
5493 fputs (dyn_string_buf (mangled), stdout);
5496 dyn_string_clear (mangled);
5499 /* If we haven't hit EOF yet, we've read one character that
5500 can't occur in a mangled name, so print it out. */
5505 dyn_string_delete (mangled);
5508 /* Demangle command line arguments. */
5510 /* Loop over command line arguments. */
5511 for (i = optind; i < argc; ++i)
5514 #ifdef IN_GLIBCPP_V3
5518 /* Attempt to demangle. */
5519 #ifdef IN_GLIBCPP_V3
5520 s = __cxa_demangle (argv[i], NULL, NULL, &status);
5522 s = cplus_demangle_v3 (argv[i], options);
5525 /* If it worked, print the demangled name. */
5533 #ifdef IN_GLIBCPP_V3
5534 fprintf (stderr, "Failed: %s (status %d)\n", argv[i], status);
5536 fprintf (stderr, "Failed: %s\n", argv[i]);
5545 #endif /* STANDALONE_DEMANGLER */