1 /* Demangler for g++ V3 ABI.
2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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 /* The options passed to the demangler. */
283 /* Fixed-length allocated buffer for demangled data, flushed to the
284 callback with a NUL termination once full. */
285 char buf[D_PRINT_BUFFER_LENGTH];
286 /* Current length of data in buffer. */
288 /* The last character printed, saved individually so that it survives
291 /* Callback function to handle demangled buffer flush. */
292 demangle_callbackref callback;
293 /* Opaque callback argument. */
295 /* The current list of templates, if any. */
296 struct d_print_template *templates;
297 /* The current list of modifiers (e.g., pointer, reference, etc.),
299 struct d_print_mod *modifiers;
300 /* Set to 1 if we saw a demangling error. */
301 int demangle_failure;
302 /* The current index into any template argument packs we are using
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_builtin_type (struct d_info *,
324 const struct demangle_builtin_type_info *);
326 static struct demangle_component *
327 d_make_operator (struct d_info *,
328 const struct demangle_operator_info *);
330 static struct demangle_component *
331 d_make_extended_operator (struct d_info *, int,
332 struct demangle_component *);
334 static struct demangle_component *
335 d_make_ctor (struct d_info *, enum gnu_v3_ctor_kinds,
336 struct demangle_component *);
338 static struct demangle_component *
339 d_make_dtor (struct d_info *, enum gnu_v3_dtor_kinds,
340 struct demangle_component *);
342 static struct demangle_component *
343 d_make_template_param (struct d_info *, long);
345 static struct demangle_component *
346 d_make_sub (struct d_info *, const char *, int);
349 has_return_type (struct demangle_component *);
352 is_ctor_dtor_or_conversion (struct demangle_component *);
354 static struct demangle_component *d_encoding (struct d_info *, int);
356 static struct demangle_component *d_name (struct d_info *);
358 static struct demangle_component *d_nested_name (struct d_info *);
360 static struct demangle_component *d_prefix (struct d_info *);
362 static struct demangle_component *d_unqualified_name (struct d_info *);
364 static struct demangle_component *d_source_name (struct d_info *);
366 static long d_number (struct d_info *);
368 static struct demangle_component *d_identifier (struct d_info *, int);
370 static struct demangle_component *d_operator_name (struct d_info *);
372 static struct demangle_component *d_special_name (struct d_info *);
374 static int d_call_offset (struct d_info *, int);
376 static struct demangle_component *d_ctor_dtor_name (struct d_info *);
378 static struct demangle_component **
379 d_cv_qualifiers (struct d_info *, struct demangle_component **, int);
381 static struct demangle_component *
382 d_function_type (struct d_info *);
384 static struct demangle_component *
385 d_bare_function_type (struct d_info *, int);
387 static struct demangle_component *
388 d_class_enum_type (struct d_info *);
390 static struct demangle_component *d_array_type (struct d_info *);
392 static struct demangle_component *d_vector_type (struct d_info *);
394 static struct demangle_component *
395 d_pointer_to_member_type (struct d_info *);
397 static struct demangle_component *
398 d_template_param (struct d_info *);
400 static struct demangle_component *d_template_args (struct d_info *);
402 static struct demangle_component *
403 d_template_arg (struct d_info *);
405 static struct demangle_component *d_expression (struct d_info *);
407 static struct demangle_component *d_expr_primary (struct d_info *);
409 static struct demangle_component *d_local_name (struct d_info *);
411 static int d_discriminator (struct d_info *);
413 static struct demangle_component *d_lambda (struct d_info *);
415 static struct demangle_component *d_unnamed_type (struct d_info *);
418 d_add_substitution (struct d_info *, struct demangle_component *);
420 static struct demangle_component *d_substitution (struct d_info *, int);
422 static void d_growable_string_init (struct d_growable_string *, size_t);
425 d_growable_string_resize (struct d_growable_string *, size_t);
428 d_growable_string_append_buffer (struct d_growable_string *,
429 const char *, size_t);
431 d_growable_string_callback_adapter (const char *, size_t, void *);
434 d_print_init (struct d_print_info *, int, demangle_callbackref, void *);
436 static inline void d_print_error (struct d_print_info *);
438 static inline int d_print_saw_error (struct d_print_info *);
440 static inline void d_print_flush (struct d_print_info *);
442 static inline void d_append_char (struct d_print_info *, char);
444 static inline void d_append_buffer (struct d_print_info *,
445 const char *, size_t);
447 static inline void d_append_string (struct d_print_info *, const char *);
449 static inline char d_last_char (struct d_print_info *);
452 d_print_comp (struct d_print_info *, const struct demangle_component *);
455 d_print_java_identifier (struct d_print_info *, const char *, int);
458 d_print_mod_list (struct d_print_info *, struct d_print_mod *, int);
461 d_print_mod (struct d_print_info *, const struct demangle_component *);
464 d_print_function_type (struct d_print_info *,
465 const struct demangle_component *,
466 struct d_print_mod *);
469 d_print_array_type (struct d_print_info *,
470 const struct demangle_component *,
471 struct d_print_mod *);
474 d_print_expr_op (struct d_print_info *, const struct demangle_component *);
477 d_print_cast (struct d_print_info *, const struct demangle_component *);
479 static int d_demangle_callback (const char *, int,
480 demangle_callbackref, void *);
481 static char *d_demangle (const char *, int, size_t *);
483 #ifdef CP_DEMANGLE_DEBUG
486 d_dump (struct demangle_component *dc, int indent)
493 printf ("failed demangling\n");
497 for (i = 0; i < indent; ++i)
502 case DEMANGLE_COMPONENT_NAME:
503 printf ("name '%.*s'\n", dc->u.s_name.len, dc->u.s_name.s);
505 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
506 printf ("template parameter %ld\n", dc->u.s_number.number);
508 case DEMANGLE_COMPONENT_CTOR:
509 printf ("constructor %d\n", (int) dc->u.s_ctor.kind);
510 d_dump (dc->u.s_ctor.name, indent + 2);
512 case DEMANGLE_COMPONENT_DTOR:
513 printf ("destructor %d\n", (int) dc->u.s_dtor.kind);
514 d_dump (dc->u.s_dtor.name, indent + 2);
516 case DEMANGLE_COMPONENT_SUB_STD:
517 printf ("standard substitution %s\n", dc->u.s_string.string);
519 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
520 printf ("builtin type %s\n", dc->u.s_builtin.type->name);
522 case DEMANGLE_COMPONENT_OPERATOR:
523 printf ("operator %s\n", dc->u.s_operator.op->name);
525 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
526 printf ("extended operator with %d args\n",
527 dc->u.s_extended_operator.args);
528 d_dump (dc->u.s_extended_operator.name, indent + 2);
531 case DEMANGLE_COMPONENT_QUAL_NAME:
532 printf ("qualified name\n");
534 case DEMANGLE_COMPONENT_LOCAL_NAME:
535 printf ("local name\n");
537 case DEMANGLE_COMPONENT_TYPED_NAME:
538 printf ("typed name\n");
540 case DEMANGLE_COMPONENT_TEMPLATE:
541 printf ("template\n");
543 case DEMANGLE_COMPONENT_VTABLE:
546 case DEMANGLE_COMPONENT_VTT:
549 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
550 printf ("construction vtable\n");
552 case DEMANGLE_COMPONENT_TYPEINFO:
553 printf ("typeinfo\n");
555 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
556 printf ("typeinfo name\n");
558 case DEMANGLE_COMPONENT_TYPEINFO_FN:
559 printf ("typeinfo function\n");
561 case DEMANGLE_COMPONENT_THUNK:
564 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
565 printf ("virtual thunk\n");
567 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
568 printf ("covariant thunk\n");
570 case DEMANGLE_COMPONENT_JAVA_CLASS:
571 printf ("java class\n");
573 case DEMANGLE_COMPONENT_GUARD:
576 case DEMANGLE_COMPONENT_REFTEMP:
577 printf ("reference temporary\n");
579 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
580 printf ("hidden alias\n");
582 case DEMANGLE_COMPONENT_RESTRICT:
583 printf ("restrict\n");
585 case DEMANGLE_COMPONENT_VOLATILE:
586 printf ("volatile\n");
588 case DEMANGLE_COMPONENT_CONST:
591 case DEMANGLE_COMPONENT_RESTRICT_THIS:
592 printf ("restrict this\n");
594 case DEMANGLE_COMPONENT_VOLATILE_THIS:
595 printf ("volatile this\n");
597 case DEMANGLE_COMPONENT_CONST_THIS:
598 printf ("const this\n");
600 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
601 printf ("vendor type qualifier\n");
603 case DEMANGLE_COMPONENT_POINTER:
604 printf ("pointer\n");
606 case DEMANGLE_COMPONENT_REFERENCE:
607 printf ("reference\n");
609 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
610 printf ("rvalue reference\n");
612 case DEMANGLE_COMPONENT_COMPLEX:
613 printf ("complex\n");
615 case DEMANGLE_COMPONENT_IMAGINARY:
616 printf ("imaginary\n");
618 case DEMANGLE_COMPONENT_VENDOR_TYPE:
619 printf ("vendor type\n");
621 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
622 printf ("function type\n");
624 case DEMANGLE_COMPONENT_ARRAY_TYPE:
625 printf ("array type\n");
627 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
628 printf ("pointer to member type\n");
630 case DEMANGLE_COMPONENT_FIXED_TYPE:
631 printf ("fixed-point type\n");
633 case DEMANGLE_COMPONENT_ARGLIST:
634 printf ("argument list\n");
636 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
637 printf ("template argument list\n");
639 case DEMANGLE_COMPONENT_CAST:
642 case DEMANGLE_COMPONENT_UNARY:
643 printf ("unary operator\n");
645 case DEMANGLE_COMPONENT_BINARY:
646 printf ("binary operator\n");
648 case DEMANGLE_COMPONENT_BINARY_ARGS:
649 printf ("binary operator arguments\n");
651 case DEMANGLE_COMPONENT_TRINARY:
652 printf ("trinary operator\n");
654 case DEMANGLE_COMPONENT_TRINARY_ARG1:
655 printf ("trinary operator arguments 1\n");
657 case DEMANGLE_COMPONENT_TRINARY_ARG2:
658 printf ("trinary operator arguments 1\n");
660 case DEMANGLE_COMPONENT_LITERAL:
661 printf ("literal\n");
663 case DEMANGLE_COMPONENT_LITERAL_NEG:
664 printf ("negative literal\n");
666 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
667 printf ("java resource\n");
669 case DEMANGLE_COMPONENT_COMPOUND_NAME:
670 printf ("compound name\n");
672 case DEMANGLE_COMPONENT_CHARACTER:
673 printf ("character '%c'\n", dc->u.s_character.character);
675 case DEMANGLE_COMPONENT_DECLTYPE:
676 printf ("decltype\n");
678 case DEMANGLE_COMPONENT_PACK_EXPANSION:
679 printf ("pack expansion\n");
683 d_dump (d_left (dc), indent + 2);
684 d_dump (d_right (dc), indent + 2);
687 #endif /* CP_DEMANGLE_DEBUG */
689 /* Fill in a DEMANGLE_COMPONENT_NAME. */
691 CP_STATIC_IF_GLIBCPP_V3
693 cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
695 if (p == NULL || s == NULL || len == 0)
697 p->type = DEMANGLE_COMPONENT_NAME;
699 p->u.s_name.len = len;
703 /* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
705 CP_STATIC_IF_GLIBCPP_V3
707 cplus_demangle_fill_extended_operator (struct demangle_component *p, int args,
708 struct demangle_component *name)
710 if (p == NULL || args < 0 || name == NULL)
712 p->type = DEMANGLE_COMPONENT_EXTENDED_OPERATOR;
713 p->u.s_extended_operator.args = args;
714 p->u.s_extended_operator.name = name;
718 /* Fill in a DEMANGLE_COMPONENT_CTOR. */
720 CP_STATIC_IF_GLIBCPP_V3
722 cplus_demangle_fill_ctor (struct demangle_component *p,
723 enum gnu_v3_ctor_kinds kind,
724 struct demangle_component *name)
728 || (int) kind < gnu_v3_complete_object_ctor
729 || (int) kind > gnu_v3_complete_object_allocating_ctor)
731 p->type = DEMANGLE_COMPONENT_CTOR;
732 p->u.s_ctor.kind = kind;
733 p->u.s_ctor.name = name;
737 /* Fill in a DEMANGLE_COMPONENT_DTOR. */
739 CP_STATIC_IF_GLIBCPP_V3
741 cplus_demangle_fill_dtor (struct demangle_component *p,
742 enum gnu_v3_dtor_kinds kind,
743 struct demangle_component *name)
747 || (int) kind < gnu_v3_deleting_dtor
748 || (int) kind > gnu_v3_base_object_dtor)
750 p->type = DEMANGLE_COMPONENT_DTOR;
751 p->u.s_dtor.kind = kind;
752 p->u.s_dtor.name = name;
756 /* Add a new component. */
758 static struct demangle_component *
759 d_make_empty (struct d_info *di)
761 struct demangle_component *p;
763 if (di->next_comp >= di->num_comps)
765 p = &di->comps[di->next_comp];
770 /* Add a new generic component. */
772 static struct demangle_component *
773 d_make_comp (struct d_info *di, enum demangle_component_type type,
774 struct demangle_component *left,
775 struct demangle_component *right)
777 struct demangle_component *p;
779 /* We check for errors here. A typical error would be a NULL return
780 from a subroutine. We catch those here, and return NULL
784 /* These types require two parameters. */
785 case DEMANGLE_COMPONENT_QUAL_NAME:
786 case DEMANGLE_COMPONENT_LOCAL_NAME:
787 case DEMANGLE_COMPONENT_TYPED_NAME:
788 case DEMANGLE_COMPONENT_TEMPLATE:
789 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
790 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
791 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
792 case DEMANGLE_COMPONENT_UNARY:
793 case DEMANGLE_COMPONENT_BINARY:
794 case DEMANGLE_COMPONENT_BINARY_ARGS:
795 case DEMANGLE_COMPONENT_TRINARY:
796 case DEMANGLE_COMPONENT_TRINARY_ARG1:
797 case DEMANGLE_COMPONENT_TRINARY_ARG2:
798 case DEMANGLE_COMPONENT_LITERAL:
799 case DEMANGLE_COMPONENT_LITERAL_NEG:
800 case DEMANGLE_COMPONENT_COMPOUND_NAME:
801 case DEMANGLE_COMPONENT_VECTOR_TYPE:
802 if (left == NULL || right == NULL)
806 /* These types only require one parameter. */
807 case DEMANGLE_COMPONENT_VTABLE:
808 case DEMANGLE_COMPONENT_VTT:
809 case DEMANGLE_COMPONENT_TYPEINFO:
810 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
811 case DEMANGLE_COMPONENT_TYPEINFO_FN:
812 case DEMANGLE_COMPONENT_THUNK:
813 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
814 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
815 case DEMANGLE_COMPONENT_JAVA_CLASS:
816 case DEMANGLE_COMPONENT_GUARD:
817 case DEMANGLE_COMPONENT_REFTEMP:
818 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
819 case DEMANGLE_COMPONENT_POINTER:
820 case DEMANGLE_COMPONENT_REFERENCE:
821 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
822 case DEMANGLE_COMPONENT_COMPLEX:
823 case DEMANGLE_COMPONENT_IMAGINARY:
824 case DEMANGLE_COMPONENT_VENDOR_TYPE:
825 case DEMANGLE_COMPONENT_CAST:
826 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
827 case DEMANGLE_COMPONENT_DECLTYPE:
828 case DEMANGLE_COMPONENT_PACK_EXPANSION:
829 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
830 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
835 /* This needs a right parameter, but the left parameter can be
837 case DEMANGLE_COMPONENT_ARRAY_TYPE:
842 /* These are allowed to have no parameters--in some cases they
843 will be filled in later. */
844 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
845 case DEMANGLE_COMPONENT_RESTRICT:
846 case DEMANGLE_COMPONENT_VOLATILE:
847 case DEMANGLE_COMPONENT_CONST:
848 case DEMANGLE_COMPONENT_RESTRICT_THIS:
849 case DEMANGLE_COMPONENT_VOLATILE_THIS:
850 case DEMANGLE_COMPONENT_CONST_THIS:
851 case DEMANGLE_COMPONENT_ARGLIST:
852 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
855 /* Other types should not be seen here. */
860 p = d_make_empty (di);
864 p->u.s_binary.left = left;
865 p->u.s_binary.right = right;
870 /* Add a new name component. */
872 static struct demangle_component *
873 d_make_name (struct d_info *di, const char *s, int len)
875 struct demangle_component *p;
877 p = d_make_empty (di);
878 if (! cplus_demangle_fill_name (p, s, len))
883 /* Add a new builtin type component. */
885 static struct demangle_component *
886 d_make_builtin_type (struct d_info *di,
887 const struct demangle_builtin_type_info *type)
889 struct demangle_component *p;
893 p = d_make_empty (di);
896 p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
897 p->u.s_builtin.type = type;
902 /* Add a new operator component. */
904 static struct demangle_component *
905 d_make_operator (struct d_info *di, const struct demangle_operator_info *op)
907 struct demangle_component *p;
909 p = d_make_empty (di);
912 p->type = DEMANGLE_COMPONENT_OPERATOR;
913 p->u.s_operator.op = op;
918 /* Add a new extended operator component. */
920 static struct demangle_component *
921 d_make_extended_operator (struct d_info *di, int args,
922 struct demangle_component *name)
924 struct demangle_component *p;
926 p = d_make_empty (di);
927 if (! cplus_demangle_fill_extended_operator (p, args, name))
932 static struct demangle_component *
933 d_make_default_arg (struct d_info *di, int num,
934 struct demangle_component *sub)
936 struct demangle_component *p = d_make_empty (di);
939 p->type = DEMANGLE_COMPONENT_DEFAULT_ARG;
940 p->u.s_unary_num.num = num;
941 p->u.s_unary_num.sub = sub;
946 /* Add a new constructor component. */
948 static struct demangle_component *
949 d_make_ctor (struct d_info *di, enum gnu_v3_ctor_kinds kind,
950 struct demangle_component *name)
952 struct demangle_component *p;
954 p = d_make_empty (di);
955 if (! cplus_demangle_fill_ctor (p, kind, name))
960 /* Add a new destructor component. */
962 static struct demangle_component *
963 d_make_dtor (struct d_info *di, enum gnu_v3_dtor_kinds kind,
964 struct demangle_component *name)
966 struct demangle_component *p;
968 p = d_make_empty (di);
969 if (! cplus_demangle_fill_dtor (p, kind, name))
974 /* Add a new template parameter. */
976 static struct demangle_component *
977 d_make_template_param (struct d_info *di, long i)
979 struct demangle_component *p;
981 p = d_make_empty (di);
984 p->type = DEMANGLE_COMPONENT_TEMPLATE_PARAM;
985 p->u.s_number.number = i;
990 /* Add a new function parameter. */
992 static struct demangle_component *
993 d_make_function_param (struct d_info *di, long i)
995 struct demangle_component *p;
997 p = d_make_empty (di);
1000 p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM;
1001 p->u.s_number.number = i;
1006 /* Add a new standard substitution component. */
1008 static struct demangle_component *
1009 d_make_sub (struct d_info *di, const char *name, int len)
1011 struct demangle_component *p;
1013 p = d_make_empty (di);
1016 p->type = DEMANGLE_COMPONENT_SUB_STD;
1017 p->u.s_string.string = name;
1018 p->u.s_string.len = len;
1023 /* <mangled-name> ::= _Z <encoding>
1025 TOP_LEVEL is non-zero when called at the top level. */
1027 CP_STATIC_IF_GLIBCPP_V3
1028 struct demangle_component *
1029 cplus_demangle_mangled_name (struct d_info *di, int top_level)
1031 if (! d_check_char (di, '_')
1032 /* Allow missing _ if not at toplevel to work around a
1033 bug in G++ abi-version=2 mangling; see the comment in
1034 write_template_arg. */
1037 if (! d_check_char (di, 'Z'))
1039 return d_encoding (di, top_level);
1042 /* Return whether a function should have a return type. The argument
1043 is the function name, which may be qualified in various ways. The
1044 rules are that template functions have return types with some
1045 exceptions, function types which are not part of a function name
1046 mangling have return types with some exceptions, and non-template
1047 function names do not have return types. The exceptions are that
1048 constructors, destructors, and conversion operators do not have
1052 has_return_type (struct demangle_component *dc)
1060 case DEMANGLE_COMPONENT_TEMPLATE:
1061 return ! is_ctor_dtor_or_conversion (d_left (dc));
1062 case DEMANGLE_COMPONENT_RESTRICT_THIS:
1063 case DEMANGLE_COMPONENT_VOLATILE_THIS:
1064 case DEMANGLE_COMPONENT_CONST_THIS:
1065 return has_return_type (d_left (dc));
1069 /* Return whether a name is a constructor, a destructor, or a
1070 conversion operator. */
1073 is_ctor_dtor_or_conversion (struct demangle_component *dc)
1081 case DEMANGLE_COMPONENT_QUAL_NAME:
1082 case DEMANGLE_COMPONENT_LOCAL_NAME:
1083 return is_ctor_dtor_or_conversion (d_right (dc));
1084 case DEMANGLE_COMPONENT_CTOR:
1085 case DEMANGLE_COMPONENT_DTOR:
1086 case DEMANGLE_COMPONENT_CAST:
1091 /* <encoding> ::= <(function) name> <bare-function-type>
1095 TOP_LEVEL is non-zero when called at the top level, in which case
1096 if DMGL_PARAMS is not set we do not demangle the function
1097 parameters. We only set this at the top level, because otherwise
1098 we would not correctly demangle names in local scopes. */
1100 static struct demangle_component *
1101 d_encoding (struct d_info *di, int top_level)
1103 char peek = d_peek_char (di);
1105 if (peek == 'G' || peek == 'T')
1106 return d_special_name (di);
1109 struct demangle_component *dc;
1113 if (dc != NULL && top_level && (di->options & DMGL_PARAMS) == 0)
1115 /* Strip off any initial CV-qualifiers, as they really apply
1116 to the `this' parameter, and they were not output by the
1117 v2 demangler without DMGL_PARAMS. */
1118 while (dc->type == DEMANGLE_COMPONENT_RESTRICT_THIS
1119 || dc->type == DEMANGLE_COMPONENT_VOLATILE_THIS
1120 || dc->type == DEMANGLE_COMPONENT_CONST_THIS)
1123 /* If the top level is a DEMANGLE_COMPONENT_LOCAL_NAME, then
1124 there may be CV-qualifiers on its right argument which
1125 really apply here; this happens when parsing a class
1126 which is local to a function. */
1127 if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
1129 struct demangle_component *dcr;
1132 while (dcr->type == DEMANGLE_COMPONENT_RESTRICT_THIS
1133 || dcr->type == DEMANGLE_COMPONENT_VOLATILE_THIS
1134 || dcr->type == DEMANGLE_COMPONENT_CONST_THIS)
1136 dc->u.s_binary.right = dcr;
1142 peek = d_peek_char (di);
1143 if (dc == NULL || peek == '\0' || peek == 'E')
1145 return d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME, dc,
1146 d_bare_function_type (di, has_return_type (dc)));
1150 /* <name> ::= <nested-name>
1152 ::= <unscoped-template-name> <template-args>
1155 <unscoped-name> ::= <unqualified-name>
1156 ::= St <unqualified-name>
1158 <unscoped-template-name> ::= <unscoped-name>
1162 static struct demangle_component *
1163 d_name (struct d_info *di)
1165 char peek = d_peek_char (di);
1166 struct demangle_component *dc;
1171 return d_nested_name (di);
1174 return d_local_name (di);
1178 return d_unqualified_name (di);
1184 if (d_peek_next_char (di) != 't')
1186 dc = d_substitution (di, 0);
1192 dc = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME,
1193 d_make_name (di, "std", 3),
1194 d_unqualified_name (di));
1199 if (d_peek_char (di) != 'I')
1201 /* The grammar does not permit this case to occur if we
1202 called d_substitution() above (i.e., subst == 1). We
1203 don't bother to check. */
1207 /* This is <template-args>, which means that we just saw
1208 <unscoped-template-name>, which is a substitution
1209 candidate if we didn't just get it from a
1213 if (! d_add_substitution (di, dc))
1216 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1217 d_template_args (di));
1224 dc = d_unqualified_name (di);
1225 if (d_peek_char (di) == 'I')
1227 /* This is <template-args>, which means that we just saw
1228 <unscoped-template-name>, which is a substitution
1230 if (! d_add_substitution (di, dc))
1232 dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
1233 d_template_args (di));
1239 /* <nested-name> ::= N [<CV-qualifiers>] <prefix> <unqualified-name> E
1240 ::= N [<CV-qualifiers>] <template-prefix> <template-args> E
1243 static struct demangle_component *
1244 d_nested_name (struct d_info *di)
1246 struct demangle_component *ret;
1247 struct demangle_component **pret;
1249 if (! d_check_char (di, 'N'))
1252 pret = d_cv_qualifiers (di, &ret, 1);
1256 *pret = d_prefix (di);
1260 if (! d_check_char (di, 'E'))
1266 /* <prefix> ::= <prefix> <unqualified-name>
1267 ::= <template-prefix> <template-args>
1268 ::= <template-param>
1272 <template-prefix> ::= <prefix> <(template) unqualified-name>
1273 ::= <template-param>
1277 static struct demangle_component *
1278 d_prefix (struct d_info *di)
1280 struct demangle_component *ret = NULL;
1285 enum demangle_component_type comb_type;
1286 struct demangle_component *dc;
1288 peek = d_peek_char (di);
1292 /* The older code accepts a <local-name> here, but I don't see
1293 that in the grammar. The older code does not accept a
1294 <template-param> here. */
1296 comb_type = DEMANGLE_COMPONENT_QUAL_NAME;
1303 dc = d_unqualified_name (di);
1304 else if (peek == 'S')
1305 dc = d_substitution (di, 1);
1306 else if (peek == 'I')
1310 comb_type = DEMANGLE_COMPONENT_TEMPLATE;
1311 dc = d_template_args (di);
1313 else if (peek == 'T')
1314 dc = d_template_param (di);
1315 else if (peek == 'E')
1317 else if (peek == 'M')
1319 /* Initializer scope for a lambda. We don't need to represent
1320 this; the normal code will just treat the variable as a type
1321 scope, which gives appropriate output. */
1333 ret = d_make_comp (di, comb_type, ret, dc);
1335 if (peek != 'S' && d_peek_char (di) != 'E')
1337 if (! d_add_substitution (di, ret))
1343 /* <unqualified-name> ::= <operator-name>
1344 ::= <ctor-dtor-name>
1346 ::= <local-source-name>
1348 <local-source-name> ::= L <source-name> <discriminator>
1351 static struct demangle_component *
1352 d_unqualified_name (struct d_info *di)
1356 peek = d_peek_char (di);
1357 if (IS_DIGIT (peek))
1358 return d_source_name (di);
1359 else if (IS_LOWER (peek))
1361 struct demangle_component *ret;
1363 ret = d_operator_name (di);
1364 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR)
1365 di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2;
1368 else if (peek == 'C' || peek == 'D')
1369 return d_ctor_dtor_name (di);
1370 else if (peek == 'L')
1372 struct demangle_component * ret;
1376 ret = d_source_name (di);
1379 if (! d_discriminator (di))
1383 else if (peek == 'U')
1385 switch (d_peek_next_char (di))
1388 return d_lambda (di);
1390 return d_unnamed_type (di);
1399 /* <source-name> ::= <(positive length) number> <identifier> */
1401 static struct demangle_component *
1402 d_source_name (struct d_info *di)
1405 struct demangle_component *ret;
1407 len = d_number (di);
1410 ret = d_identifier (di, len);
1411 di->last_name = ret;
1415 /* number ::= [n] <(non-negative decimal integer)> */
1418 d_number (struct d_info *di)
1425 peek = d_peek_char (di);
1430 peek = d_peek_char (di);
1436 if (! IS_DIGIT (peek))
1442 ret = ret * 10 + peek - '0';
1444 peek = d_peek_char (di);
1448 /* Like d_number, but returns a demangle_component. */
1450 static struct demangle_component *
1451 d_number_component (struct d_info *di)
1453 struct demangle_component *ret = d_make_empty (di);
1456 ret->type = DEMANGLE_COMPONENT_NUMBER;
1457 ret->u.s_number.number = d_number (di);
1462 /* identifier ::= <(unqualified source code identifier)> */
1464 static struct demangle_component *
1465 d_identifier (struct d_info *di, int len)
1471 if (di->send - name < len)
1474 d_advance (di, len);
1476 /* A Java mangled name may have a trailing '$' if it is a C++
1477 keyword. This '$' is not included in the length count. We just
1479 if ((di->options & DMGL_JAVA) != 0
1480 && d_peek_char (di) == '$')
1483 /* Look for something which looks like a gcc encoding of an
1484 anonymous namespace, and replace it with a more user friendly
1486 if (len >= (int) ANONYMOUS_NAMESPACE_PREFIX_LEN + 2
1487 && memcmp (name, ANONYMOUS_NAMESPACE_PREFIX,
1488 ANONYMOUS_NAMESPACE_PREFIX_LEN) == 0)
1492 s = name + ANONYMOUS_NAMESPACE_PREFIX_LEN;
1493 if ((*s == '.' || *s == '_' || *s == '$')
1496 di->expansion -= len - sizeof "(anonymous namespace)";
1497 return d_make_name (di, "(anonymous namespace)",
1498 sizeof "(anonymous namespace)" - 1);
1502 return d_make_name (di, name, len);
1505 /* operator_name ::= many different two character encodings.
1507 ::= v <digit> <source-name>
1510 #define NL(s) s, (sizeof s) - 1
1512 CP_STATIC_IF_GLIBCPP_V3
1513 const struct demangle_operator_info cplus_demangle_operators[] =
1515 { "aN", NL ("&="), 2 },
1516 { "aS", NL ("="), 2 },
1517 { "aa", NL ("&&"), 2 },
1518 { "ad", NL ("&"), 1 },
1519 { "an", NL ("&"), 2 },
1520 { "cl", NL ("()"), 2 },
1521 { "cm", NL (","), 2 },
1522 { "co", NL ("~"), 1 },
1523 { "dV", NL ("/="), 2 },
1524 { "da", NL ("delete[]"), 1 },
1525 { "de", NL ("*"), 1 },
1526 { "dl", NL ("delete"), 1 },
1527 { "dt", NL ("."), 2 },
1528 { "dv", NL ("/"), 2 },
1529 { "eO", NL ("^="), 2 },
1530 { "eo", NL ("^"), 2 },
1531 { "eq", NL ("=="), 2 },
1532 { "ge", NL (">="), 2 },
1533 { "gt", NL (">"), 2 },
1534 { "ix", NL ("[]"), 2 },
1535 { "lS", NL ("<<="), 2 },
1536 { "le", NL ("<="), 2 },
1537 { "ls", NL ("<<"), 2 },
1538 { "lt", NL ("<"), 2 },
1539 { "mI", NL ("-="), 2 },
1540 { "mL", NL ("*="), 2 },
1541 { "mi", NL ("-"), 2 },
1542 { "ml", NL ("*"), 2 },
1543 { "mm", NL ("--"), 1 },
1544 { "na", NL ("new[]"), 1 },
1545 { "ne", NL ("!="), 2 },
1546 { "ng", NL ("-"), 1 },
1547 { "nt", NL ("!"), 1 },
1548 { "nw", NL ("new"), 1 },
1549 { "oR", NL ("|="), 2 },
1550 { "oo", NL ("||"), 2 },
1551 { "or", NL ("|"), 2 },
1552 { "pL", NL ("+="), 2 },
1553 { "pl", NL ("+"), 2 },
1554 { "pm", NL ("->*"), 2 },
1555 { "pp", NL ("++"), 1 },
1556 { "ps", NL ("+"), 1 },
1557 { "pt", NL ("->"), 2 },
1558 { "qu", NL ("?"), 3 },
1559 { "rM", NL ("%="), 2 },
1560 { "rS", NL (">>="), 2 },
1561 { "rm", NL ("%"), 2 },
1562 { "rs", NL (">>"), 2 },
1563 { "st", NL ("sizeof "), 1 },
1564 { "sz", NL ("sizeof "), 1 },
1565 { "at", NL ("alignof "), 1 },
1566 { "az", NL ("alignof "), 1 },
1567 { NULL, NULL, 0, 0 }
1570 static struct demangle_component *
1571 d_operator_name (struct d_info *di)
1576 c1 = d_next_char (di);
1577 c2 = d_next_char (di);
1578 if (c1 == 'v' && IS_DIGIT (c2))
1579 return d_make_extended_operator (di, c2 - '0', d_source_name (di));
1580 else if (c1 == 'c' && c2 == 'v')
1581 return d_make_comp (di, DEMANGLE_COMPONENT_CAST,
1582 cplus_demangle_type (di), NULL);
1585 /* LOW is the inclusive lower bound. */
1587 /* HIGH is the exclusive upper bound. We subtract one to ignore
1588 the sentinel at the end of the array. */
1589 int high = ((sizeof (cplus_demangle_operators)
1590 / sizeof (cplus_demangle_operators[0]))
1596 const struct demangle_operator_info *p;
1598 i = low + (high - low) / 2;
1599 p = cplus_demangle_operators + i;
1601 if (c1 == p->code[0] && c2 == p->code[1])
1602 return d_make_operator (di, p);
1604 if (c1 < p->code[0] || (c1 == p->code[0] && c2 < p->code[1]))
1614 static struct demangle_component *
1615 d_make_character (struct d_info *di, int c)
1617 struct demangle_component *p;
1618 p = d_make_empty (di);
1621 p->type = DEMANGLE_COMPONENT_CHARACTER;
1622 p->u.s_character.character = c;
1627 static struct demangle_component *
1628 d_java_resource (struct d_info *di)
1630 struct demangle_component *p = NULL;
1631 struct demangle_component *next = NULL;
1636 len = d_number (di);
1640 /* Eat the leading '_'. */
1641 if (d_next_char (di) != '_')
1654 /* Each chunk is either a '$' escape... */
1672 next = d_make_character (di, c);
1680 /* ... or a sequence of characters. */
1683 while (i < len && str[i] && str[i] != '$')
1686 next = d_make_name (di, str, i);
1699 p = d_make_comp (di, DEMANGLE_COMPONENT_COMPOUND_NAME, p, next);
1705 p = d_make_comp (di, DEMANGLE_COMPONENT_JAVA_RESOURCE, p, NULL);
1710 /* <special-name> ::= TV <type>
1714 ::= GV <(object) name>
1715 ::= T <call-offset> <(base) encoding>
1716 ::= Tc <call-offset> <call-offset> <(base) encoding>
1717 Also g++ extensions:
1718 ::= TC <type> <(offset) number> _ <(base) type>
1723 ::= Gr <resource name>
1726 static struct demangle_component *
1727 d_special_name (struct d_info *di)
1729 di->expansion += 20;
1730 if (d_check_char (di, 'T'))
1732 switch (d_next_char (di))
1736 return d_make_comp (di, DEMANGLE_COMPONENT_VTABLE,
1737 cplus_demangle_type (di), NULL);
1739 di->expansion -= 10;
1740 return d_make_comp (di, DEMANGLE_COMPONENT_VTT,
1741 cplus_demangle_type (di), NULL);
1743 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO,
1744 cplus_demangle_type (di), NULL);
1746 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_NAME,
1747 cplus_demangle_type (di), NULL);
1750 if (! d_call_offset (di, 'h'))
1752 return d_make_comp (di, DEMANGLE_COMPONENT_THUNK,
1753 d_encoding (di, 0), NULL);
1756 if (! d_call_offset (di, 'v'))
1758 return d_make_comp (di, DEMANGLE_COMPONENT_VIRTUAL_THUNK,
1759 d_encoding (di, 0), NULL);
1762 if (! d_call_offset (di, '\0'))
1764 if (! d_call_offset (di, '\0'))
1766 return d_make_comp (di, DEMANGLE_COMPONENT_COVARIANT_THUNK,
1767 d_encoding (di, 0), NULL);
1771 struct demangle_component *derived_type;
1773 struct demangle_component *base_type;
1775 derived_type = cplus_demangle_type (di);
1776 offset = d_number (di);
1779 if (! d_check_char (di, '_'))
1781 base_type = cplus_demangle_type (di);
1782 /* We don't display the offset. FIXME: We should display
1783 it in verbose mode. */
1785 return d_make_comp (di, DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
1786 base_type, derived_type);
1790 return d_make_comp (di, DEMANGLE_COMPONENT_TYPEINFO_FN,
1791 cplus_demangle_type (di), NULL);
1793 return d_make_comp (di, DEMANGLE_COMPONENT_JAVA_CLASS,
1794 cplus_demangle_type (di), NULL);
1800 else if (d_check_char (di, 'G'))
1802 switch (d_next_char (di))
1805 return d_make_comp (di, DEMANGLE_COMPONENT_GUARD, d_name (di), NULL);
1808 return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, d_name (di),
1812 return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS,
1813 d_encoding (di, 0), NULL);
1816 return d_java_resource (di);
1826 /* <call-offset> ::= h <nv-offset> _
1829 <nv-offset> ::= <(offset) number>
1831 <v-offset> ::= <(offset) number> _ <(virtual offset) number>
1833 The C parameter, if not '\0', is a character we just read which is
1834 the start of the <call-offset>.
1836 We don't display the offset information anywhere. FIXME: We should
1837 display it in verbose mode. */
1840 d_call_offset (struct d_info *di, int c)
1843 c = d_next_char (di);
1850 if (! d_check_char (di, '_'))
1857 if (! d_check_char (di, '_'))
1863 /* <ctor-dtor-name> ::= C1
1871 static struct demangle_component *
1872 d_ctor_dtor_name (struct d_info *di)
1874 if (di->last_name != NULL)
1876 if (di->last_name->type == DEMANGLE_COMPONENT_NAME)
1877 di->expansion += di->last_name->u.s_name.len;
1878 else if (di->last_name->type == DEMANGLE_COMPONENT_SUB_STD)
1879 di->expansion += di->last_name->u.s_string.len;
1881 switch (d_peek_char (di))
1885 enum gnu_v3_ctor_kinds kind;
1887 switch (d_peek_next_char (di))
1890 kind = gnu_v3_complete_object_ctor;
1893 kind = gnu_v3_base_object_ctor;
1896 kind = gnu_v3_complete_object_allocating_ctor;
1902 return d_make_ctor (di, kind, di->last_name);
1907 enum gnu_v3_dtor_kinds kind;
1909 switch (d_peek_next_char (di))
1912 kind = gnu_v3_deleting_dtor;
1915 kind = gnu_v3_complete_object_dtor;
1918 kind = gnu_v3_base_object_dtor;
1924 return d_make_dtor (di, kind, di->last_name);
1932 /* <type> ::= <builtin-type>
1934 ::= <class-enum-type>
1936 ::= <pointer-to-member-type>
1937 ::= <template-param>
1938 ::= <template-template-param> <template-args>
1940 ::= <CV-qualifiers> <type>
1943 ::= O <type> (C++0x)
1946 ::= U <source-name> <type>
1948 <builtin-type> ::= various one letter codes
1952 CP_STATIC_IF_GLIBCPP_V3
1953 const struct demangle_builtin_type_info
1954 cplus_demangle_builtin_types[D_BUILTIN_TYPE_COUNT] =
1956 /* a */ { NL ("signed char"), NL ("signed char"), D_PRINT_DEFAULT },
1957 /* b */ { NL ("bool"), NL ("boolean"), D_PRINT_BOOL },
1958 /* c */ { NL ("char"), NL ("byte"), D_PRINT_DEFAULT },
1959 /* d */ { NL ("double"), NL ("double"), D_PRINT_FLOAT },
1960 /* e */ { NL ("long double"), NL ("long double"), D_PRINT_FLOAT },
1961 /* f */ { NL ("float"), NL ("float"), D_PRINT_FLOAT },
1962 /* g */ { NL ("__float128"), NL ("__float128"), D_PRINT_FLOAT },
1963 /* h */ { NL ("unsigned char"), NL ("unsigned char"), D_PRINT_DEFAULT },
1964 /* i */ { NL ("int"), NL ("int"), D_PRINT_INT },
1965 /* j */ { NL ("unsigned int"), NL ("unsigned"), D_PRINT_UNSIGNED },
1966 /* k */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
1967 /* l */ { NL ("long"), NL ("long"), D_PRINT_LONG },
1968 /* m */ { NL ("unsigned long"), NL ("unsigned long"), D_PRINT_UNSIGNED_LONG },
1969 /* n */ { NL ("__int128"), NL ("__int128"), D_PRINT_DEFAULT },
1970 /* o */ { NL ("unsigned __int128"), NL ("unsigned __int128"),
1972 /* p */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
1973 /* q */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
1974 /* r */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
1975 /* s */ { NL ("short"), NL ("short"), D_PRINT_DEFAULT },
1976 /* t */ { NL ("unsigned short"), NL ("unsigned short"), D_PRINT_DEFAULT },
1977 /* u */ { NULL, 0, NULL, 0, D_PRINT_DEFAULT },
1978 /* v */ { NL ("void"), NL ("void"), D_PRINT_VOID },
1979 /* w */ { NL ("wchar_t"), NL ("char"), D_PRINT_DEFAULT },
1980 /* x */ { NL ("long long"), NL ("long"), D_PRINT_LONG_LONG },
1981 /* y */ { NL ("unsigned long long"), NL ("unsigned long long"),
1982 D_PRINT_UNSIGNED_LONG_LONG },
1983 /* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT },
1984 /* 26 */ { NL ("decimal32"), NL ("decimal32"), D_PRINT_DEFAULT },
1985 /* 27 */ { NL ("decimal64"), NL ("decimal64"), D_PRINT_DEFAULT },
1986 /* 28 */ { NL ("decimal128"), NL ("decimal128"), D_PRINT_DEFAULT },
1987 /* 29 */ { NL ("half"), NL ("half"), D_PRINT_FLOAT },
1988 /* 30 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT },
1989 /* 31 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT },
1992 CP_STATIC_IF_GLIBCPP_V3
1993 struct demangle_component *
1994 cplus_demangle_type (struct d_info *di)
1997 struct demangle_component *ret;
2000 /* The ABI specifies that when CV-qualifiers are used, the base type
2001 is substitutable, and the fully qualified type is substitutable,
2002 but the base type with a strict subset of the CV-qualifiers is
2003 not substitutable. The natural recursive implementation of the
2004 CV-qualifiers would cause subsets to be substitutable, so instead
2005 we pull them all off now.
2007 FIXME: The ABI says that order-insensitive vendor qualifiers
2008 should be handled in the same way, but we have no way to tell
2009 which vendor qualifiers are order-insensitive and which are
2010 order-sensitive. So we just assume that they are all
2011 order-sensitive. g++ 3.4 supports only one vendor qualifier,
2012 __vector, and it treats it as order-sensitive when mangling
2015 peek = d_peek_char (di);
2016 if (peek == 'r' || peek == 'V' || peek == 'K')
2018 struct demangle_component **pret;
2020 pret = d_cv_qualifiers (di, &ret, 0);
2023 *pret = cplus_demangle_type (di);
2024 if (! *pret || ! d_add_substitution (di, ret))
2033 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
2034 case 'h': case 'i': case 'j': case 'l': case 'm': case 'n':
2035 case 'o': case 's': case 't':
2036 case 'v': case 'w': case 'x': case 'y': case 'z':
2037 ret = d_make_builtin_type (di,
2038 &cplus_demangle_builtin_types[peek - 'a']);
2039 di->expansion += ret->u.s_builtin.type->len;
2046 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE,
2047 d_source_name (di), NULL);
2051 ret = d_function_type (di);
2054 case '0': case '1': case '2': case '3': case '4':
2055 case '5': case '6': case '7': case '8': case '9':
2058 ret = d_class_enum_type (di);
2062 ret = d_array_type (di);
2066 ret = d_pointer_to_member_type (di);
2070 ret = d_template_param (di);
2071 if (d_peek_char (di) == 'I')
2073 /* This is <template-template-param> <template-args>. The
2074 <template-template-param> part is a substitution
2076 if (! d_add_substitution (di, ret))
2078 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2079 d_template_args (di));
2084 /* If this is a special substitution, then it is the start of
2085 <class-enum-type>. */
2089 peek_next = d_peek_next_char (di);
2090 if (IS_DIGIT (peek_next)
2092 || IS_UPPER (peek_next))
2094 ret = d_substitution (di, 0);
2095 /* The substituted name may have been a template name and
2096 may be followed by tepmlate args. */
2097 if (d_peek_char (di) == 'I')
2098 ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
2099 d_template_args (di));
2105 ret = d_class_enum_type (di);
2106 /* If the substitution was a complete type, then it is not
2107 a new substitution candidate. However, if the
2108 substitution was followed by template arguments, then
2109 the whole thing is a substitution candidate. */
2110 if (ret != NULL && ret->type == DEMANGLE_COMPONENT_SUB_STD)
2118 ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE,
2119 cplus_demangle_type (di), NULL);
2124 ret = d_make_comp (di, DEMANGLE_COMPONENT_POINTER,
2125 cplus_demangle_type (di), NULL);
2130 ret = d_make_comp (di, DEMANGLE_COMPONENT_REFERENCE,
2131 cplus_demangle_type (di), NULL);
2136 ret = d_make_comp (di, DEMANGLE_COMPONENT_COMPLEX,
2137 cplus_demangle_type (di), NULL);
2142 ret = d_make_comp (di, DEMANGLE_COMPONENT_IMAGINARY,
2143 cplus_demangle_type (di), NULL);
2148 ret = d_source_name (di);
2149 ret = d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
2150 cplus_demangle_type (di), ret);
2156 peek = d_next_char (di);
2161 /* decltype (expression) */
2162 ret = d_make_comp (di, DEMANGLE_COMPONENT_DECLTYPE,
2163 d_expression (di), NULL);
2164 if (ret && d_next_char (di) != 'E')
2169 /* Pack expansion. */
2170 ret = d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
2171 cplus_demangle_type (di), NULL);
2175 /* 32-bit decimal floating point */
2176 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);
2177 di->expansion += ret->u.s_builtin.type->len;
2181 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[27]);
2182 di->expansion += ret->u.s_builtin.type->len;
2186 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[28]);
2187 di->expansion += ret->u.s_builtin.type->len;
2190 /* 16-bit half-precision FP */
2191 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]);
2192 di->expansion += ret->u.s_builtin.type->len;
2196 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
2197 di->expansion += ret->u.s_builtin.type->len;
2201 ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
2202 di->expansion += ret->u.s_builtin.type->len;
2206 /* Fixed point types. DF<int bits><length><fract bits><sat> */
2207 ret = d_make_empty (di);
2208 ret->type = DEMANGLE_COMPONENT_FIXED_TYPE;
2209 if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di))))
2210 /* For demangling we don't care about the bits. */
2212 ret->u.s_fixed.length = cplus_demangle_type (di);
2213 if (ret->u.s_fixed.length == NULL)
2216 peek = d_next_char (di);
2217 ret->u.s_fixed.sat = (peek == 's');
2221 ret = d_vector_type (di);
2235 if (! d_add_substitution (di, ret))
2242 /* <CV-qualifiers> ::= [r] [V] [K] */
2244 static struct demangle_component **
2245 d_cv_qualifiers (struct d_info *di,
2246 struct demangle_component **pret, int member_fn)
2250 peek = d_peek_char (di);
2251 while (peek == 'r' || peek == 'V' || peek == 'K')
2253 enum demangle_component_type t;
2259 ? DEMANGLE_COMPONENT_RESTRICT_THIS
2260 : DEMANGLE_COMPONENT_RESTRICT);
2261 di->expansion += sizeof "restrict";
2263 else if (peek == 'V')
2266 ? DEMANGLE_COMPONENT_VOLATILE_THIS
2267 : DEMANGLE_COMPONENT_VOLATILE);
2268 di->expansion += sizeof "volatile";
2273 ? DEMANGLE_COMPONENT_CONST_THIS
2274 : DEMANGLE_COMPONENT_CONST);
2275 di->expansion += sizeof "const";
2278 *pret = d_make_comp (di, t, NULL, NULL);
2281 pret = &d_left (*pret);
2283 peek = d_peek_char (di);
2289 /* <function-type> ::= F [Y] <bare-function-type> E */
2291 static struct demangle_component *
2292 d_function_type (struct d_info *di)
2294 struct demangle_component *ret;
2296 if (! d_check_char (di, 'F'))
2298 if (d_peek_char (di) == 'Y')
2300 /* Function has C linkage. We don't print this information.
2301 FIXME: We should print it in verbose mode. */
2304 ret = d_bare_function_type (di, 1);
2305 if (! d_check_char (di, 'E'))
2312 static struct demangle_component *
2313 d_parmlist (struct d_info *di)
2315 struct demangle_component *tl;
2316 struct demangle_component **ptl;
2322 struct demangle_component *type;
2324 char peek = d_peek_char (di);
2325 if (peek == '\0' || peek == 'E')
2327 type = cplus_demangle_type (di);
2330 *ptl = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, type, NULL);
2333 ptl = &d_right (*ptl);
2336 /* There should be at least one parameter type besides the optional
2337 return type. A function which takes no arguments will have a
2338 single parameter type void. */
2342 /* If we have a single parameter type void, omit it. */
2343 if (d_right (tl) == NULL
2344 && d_left (tl)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2345 && d_left (tl)->u.s_builtin.type->print == D_PRINT_VOID)
2347 di->expansion -= d_left (tl)->u.s_builtin.type->len;
2354 /* <bare-function-type> ::= [J]<type>+ */
2356 static struct demangle_component *
2357 d_bare_function_type (struct d_info *di, int has_return_type)
2359 struct demangle_component *return_type;
2360 struct demangle_component *tl;
2363 /* Detect special qualifier indicating that the first argument
2364 is the return type. */
2365 peek = d_peek_char (di);
2369 has_return_type = 1;
2372 if (has_return_type)
2374 return_type = cplus_demangle_type (di);
2375 if (return_type == NULL)
2381 tl = d_parmlist (di);
2385 return d_make_comp (di, DEMANGLE_COMPONENT_FUNCTION_TYPE,
2389 /* <class-enum-type> ::= <name> */
2391 static struct demangle_component *
2392 d_class_enum_type (struct d_info *di)
2397 /* <array-type> ::= A <(positive dimension) number> _ <(element) type>
2398 ::= A [<(dimension) expression>] _ <(element) type>
2401 static struct demangle_component *
2402 d_array_type (struct d_info *di)
2405 struct demangle_component *dim;
2407 if (! d_check_char (di, 'A'))
2410 peek = d_peek_char (di);
2413 else if (IS_DIGIT (peek))
2421 peek = d_peek_char (di);
2423 while (IS_DIGIT (peek));
2424 dim = d_make_name (di, s, d_str (di) - s);
2430 dim = d_expression (di);
2435 if (! d_check_char (di, '_'))
2438 return d_make_comp (di, DEMANGLE_COMPONENT_ARRAY_TYPE, dim,
2439 cplus_demangle_type (di));
2442 /* <vector-type> ::= Dv <number> _ <type>
2443 ::= Dv _ <expression> _ <type> */
2445 static struct demangle_component *
2446 d_vector_type (struct d_info *di)
2449 struct demangle_component *dim;
2451 peek = d_peek_char (di);
2455 dim = d_expression (di);
2458 dim = d_number_component (di);
2463 if (! d_check_char (di, '_'))
2466 return d_make_comp (di, DEMANGLE_COMPONENT_VECTOR_TYPE, dim,
2467 cplus_demangle_type (di));
2470 /* <pointer-to-member-type> ::= M <(class) type> <(member) type> */
2472 static struct demangle_component *
2473 d_pointer_to_member_type (struct d_info *di)
2475 struct demangle_component *cl;
2476 struct demangle_component *mem;
2477 struct demangle_component **pmem;
2479 if (! d_check_char (di, 'M'))
2482 cl = cplus_demangle_type (di);
2484 /* The ABI specifies that any type can be a substitution source, and
2485 that M is followed by two types, and that when a CV-qualified
2486 type is seen both the base type and the CV-qualified types are
2487 substitution sources. The ABI also specifies that for a pointer
2488 to a CV-qualified member function, the qualifiers are attached to
2489 the second type. Given the grammar, a plain reading of the ABI
2490 suggests that both the CV-qualified member function and the
2491 non-qualified member function are substitution sources. However,
2492 g++ does not work that way. g++ treats only the CV-qualified
2493 member function as a substitution source. FIXME. So to work
2494 with g++, we need to pull off the CV-qualifiers here, in order to
2495 avoid calling add_substitution() in cplus_demangle_type(). But
2496 for a CV-qualified member which is not a function, g++ does
2497 follow the ABI, so we need to handle that case here by calling
2498 d_add_substitution ourselves. */
2500 pmem = d_cv_qualifiers (di, &mem, 1);
2503 *pmem = cplus_demangle_type (di);
2507 if (pmem != &mem && (*pmem)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE)
2509 if (! d_add_substitution (di, mem))
2513 return d_make_comp (di, DEMANGLE_COMPONENT_PTRMEM_TYPE, cl, mem);
2516 /* <non-negative number> _ */
2519 d_compact_number (struct d_info *di)
2522 if (d_peek_char (di) == '_')
2524 else if (d_peek_char (di) == 'n')
2527 num = d_number (di) + 1;
2529 if (! d_check_char (di, '_'))
2534 /* <template-param> ::= T_
2535 ::= T <(parameter-2 non-negative) number> _
2538 static struct demangle_component *
2539 d_template_param (struct d_info *di)
2543 if (! d_check_char (di, 'T'))
2546 param = d_compact_number (di);
2552 return d_make_template_param (di, param);
2555 /* <template-args> ::= I <template-arg>+ E */
2557 static struct demangle_component *
2558 d_template_args (struct d_info *di)
2560 struct demangle_component *hold_last_name;
2561 struct demangle_component *al;
2562 struct demangle_component **pal;
2564 /* Preserve the last name we saw--don't let the template arguments
2565 clobber it, as that would give us the wrong name for a subsequent
2566 constructor or destructor. */
2567 hold_last_name = di->last_name;
2569 if (! d_check_char (di, 'I'))
2572 if (d_peek_char (di) == 'E')
2574 /* An argument pack can be empty. */
2576 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL);
2583 struct demangle_component *a;
2585 a = d_template_arg (di);
2589 *pal = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, a, NULL);
2592 pal = &d_right (*pal);
2594 if (d_peek_char (di) == 'E')
2601 di->last_name = hold_last_name;
2606 /* <template-arg> ::= <type>
2607 ::= X <expression> E
2611 static struct demangle_component *
2612 d_template_arg (struct d_info *di)
2614 struct demangle_component *ret;
2616 switch (d_peek_char (di))
2620 ret = d_expression (di);
2621 if (! d_check_char (di, 'E'))
2626 return d_expr_primary (di);
2629 /* An argument pack. */
2630 return d_template_args (di);
2633 return cplus_demangle_type (di);
2637 /* Subroutine of <expression> ::= cl <expression>+ E */
2639 static struct demangle_component *
2640 d_exprlist (struct d_info *di)
2642 struct demangle_component *list = NULL;
2643 struct demangle_component **p = &list;
2645 if (d_peek_char (di) == 'E')
2648 return d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, NULL, NULL);
2653 struct demangle_component *arg = d_expression (di);
2657 *p = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, arg, NULL);
2662 if (d_peek_char (di) == 'E')
2672 /* <expression> ::= <(unary) operator-name> <expression>
2673 ::= <(binary) operator-name> <expression> <expression>
2674 ::= <(trinary) operator-name> <expression> <expression> <expression>
2675 ::= cl <expression>+ E
2677 ::= <template-param>
2678 ::= sr <type> <unqualified-name>
2679 ::= sr <type> <unqualified-name> <template-args>
2683 static struct demangle_component *
2684 d_expression (struct d_info *di)
2688 peek = d_peek_char (di);
2690 return d_expr_primary (di);
2691 else if (peek == 'T')
2692 return d_template_param (di);
2693 else if (peek == 's' && d_peek_next_char (di) == 'r')
2695 struct demangle_component *type;
2696 struct demangle_component *name;
2699 type = cplus_demangle_type (di);
2700 name = d_unqualified_name (di);
2701 if (d_peek_char (di) != 'I')
2702 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type, name);
2704 return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type,
2705 d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
2706 d_template_args (di)));
2708 else if (peek == 's' && d_peek_next_char (di) == 'p')
2711 return d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
2712 d_expression (di), NULL);
2714 else if (peek == 'f' && d_peek_next_char (di) == 'p')
2716 /* Function parameter used in a late-specified return type. */
2719 index = d_compact_number (di);
2723 return d_make_function_param (di, index);
2725 else if (IS_DIGIT (peek)
2726 || (peek == 'o' && d_peek_next_char (di) == 'n'))
2728 /* We can get an unqualified name as an expression in the case of
2729 a dependent function call, i.e. decltype(f(t)). */
2730 struct demangle_component *name;
2733 /* operator-function-id, i.e. operator+(t). */
2736 name = d_unqualified_name (di);
2739 if (d_peek_char (di) == 'I')
2740 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
2741 d_template_args (di));
2747 struct demangle_component *op;
2750 op = d_operator_name (di);
2754 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
2755 di->expansion += op->u.s_operator.op->len - 2;
2757 if (op->type == DEMANGLE_COMPONENT_OPERATOR
2758 && strcmp (op->u.s_operator.op->code, "st") == 0)
2759 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
2760 cplus_demangle_type (di));
2766 case DEMANGLE_COMPONENT_OPERATOR:
2767 args = op->u.s_operator.op->args;
2769 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
2770 args = op->u.s_extended_operator.args;
2772 case DEMANGLE_COMPONENT_CAST:
2781 struct demangle_component *operand;
2782 if (op->type == DEMANGLE_COMPONENT_CAST
2783 && d_check_char (di, '_'))
2784 operand = d_exprlist (di);
2786 operand = d_expression (di);
2787 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
2792 struct demangle_component *left;
2793 struct demangle_component *right;
2794 const char *code = op->u.s_operator.op->code;
2796 left = d_expression (di);
2797 if (!strcmp (code, "cl"))
2798 right = d_exprlist (di);
2799 else if (!strcmp (code, "dt") || !strcmp (code, "pt"))
2801 right = d_unqualified_name (di);
2802 if (d_peek_char (di) == 'I')
2803 right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE,
2804 right, d_template_args (di));
2807 right = d_expression (di);
2809 return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op,
2811 DEMANGLE_COMPONENT_BINARY_ARGS,
2816 struct demangle_component *first;
2817 struct demangle_component *second;
2819 first = d_expression (di);
2820 second = d_expression (di);
2821 return d_make_comp (di, DEMANGLE_COMPONENT_TRINARY, op,
2823 DEMANGLE_COMPONENT_TRINARY_ARG1,
2826 DEMANGLE_COMPONENT_TRINARY_ARG2,
2828 d_expression (di))));
2836 /* <expr-primary> ::= L <type> <(value) number> E
2837 ::= L <type> <(value) float> E
2838 ::= L <mangled-name> E
2841 static struct demangle_component *
2842 d_expr_primary (struct d_info *di)
2844 struct demangle_component *ret;
2846 if (! d_check_char (di, 'L'))
2848 if (d_peek_char (di) == '_'
2849 /* Workaround for G++ bug; see comment in write_template_arg. */
2850 || d_peek_char (di) == 'Z')
2851 ret = cplus_demangle_mangled_name (di, 0);
2854 struct demangle_component *type;
2855 enum demangle_component_type t;
2858 type = cplus_demangle_type (di);
2862 /* If we have a type we know how to print, we aren't going to
2863 print the type name itself. */
2864 if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2865 && type->u.s_builtin.type->print != D_PRINT_DEFAULT)
2866 di->expansion -= type->u.s_builtin.type->len;
2868 /* Rather than try to interpret the literal value, we just
2869 collect it as a string. Note that it's possible to have a
2870 floating point literal here. The ABI specifies that the
2871 format of such literals is machine independent. That's fine,
2872 but what's not fine is that versions of g++ up to 3.2 with
2873 -fabi-version=1 used upper case letters in the hex constant,
2874 and dumped out gcc's internal representation. That makes it
2875 hard to tell where the constant ends, and hard to dump the
2876 constant in any readable form anyhow. We don't attempt to
2877 handle these cases. */
2879 t = DEMANGLE_COMPONENT_LITERAL;
2880 if (d_peek_char (di) == 'n')
2882 t = DEMANGLE_COMPONENT_LITERAL_NEG;
2886 while (d_peek_char (di) != 'E')
2888 if (d_peek_char (di) == '\0')
2892 ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s));
2894 if (! d_check_char (di, 'E'))
2899 /* <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>]
2900 ::= Z <(function) encoding> E s [<discriminator>]
2903 static struct demangle_component *
2904 d_local_name (struct d_info *di)
2906 struct demangle_component *function;
2908 if (! d_check_char (di, 'Z'))
2911 function = d_encoding (di, 0);
2913 if (! d_check_char (di, 'E'))
2916 if (d_peek_char (di) == 's')
2919 if (! d_discriminator (di))
2921 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function,
2922 d_make_name (di, "string literal",
2923 sizeof "string literal" - 1));
2927 struct demangle_component *name;
2930 if (d_peek_char (di) == 'd')
2932 /* Default argument scope: d <number> _. */
2934 num = d_compact_number (di);
2943 /* Lambdas and unnamed types have internal discriminators. */
2944 case DEMANGLE_COMPONENT_LAMBDA:
2945 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
2948 if (! d_discriminator (di))
2952 name = d_make_default_arg (di, num, name);
2953 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
2957 /* <discriminator> ::= _ <(non-negative) number>
2959 We demangle the discriminator, but we don't print it out. FIXME:
2960 We should print it out in verbose mode. */
2963 d_discriminator (struct d_info *di)
2967 if (d_peek_char (di) != '_')
2970 discrim = d_number (di);
2976 /* <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ */
2978 static struct demangle_component *
2979 d_lambda (struct d_info *di)
2981 struct demangle_component *tl;
2982 struct demangle_component *ret;
2985 if (! d_check_char (di, 'U'))
2987 if (! d_check_char (di, 'l'))
2990 tl = d_parmlist (di);
2994 if (! d_check_char (di, 'E'))
2997 num = d_compact_number (di);
3001 ret = d_make_empty (di);
3004 ret->type = DEMANGLE_COMPONENT_LAMBDA;
3005 ret->u.s_unary_num.sub = tl;
3006 ret->u.s_unary_num.num = num;
3009 if (! d_add_substitution (di, ret))
3015 /* <unnamed-type-name> ::= Ut [ <nonnegative number> ] _ */
3017 static struct demangle_component *
3018 d_unnamed_type (struct d_info *di)
3020 struct demangle_component *ret;
3023 if (! d_check_char (di, 'U'))
3025 if (! d_check_char (di, 't'))
3028 num = d_compact_number (di);
3032 ret = d_make_empty (di);
3035 ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE;
3036 ret->u.s_number.number = num;
3039 if (! d_add_substitution (di, ret))
3045 /* Add a new substitution. */
3048 d_add_substitution (struct d_info *di, struct demangle_component *dc)
3052 if (di->next_sub >= di->num_subs)
3054 di->subs[di->next_sub] = dc;
3059 /* <substitution> ::= S <seq-id> _
3069 If PREFIX is non-zero, then this type is being used as a prefix in
3070 a qualified name. In this case, for the standard substitutions, we
3071 need to check whether we are being used as a prefix for a
3072 constructor or destructor, and return a full template name.
3073 Otherwise we will get something like std::iostream::~iostream()
3074 which does not correspond particularly well to any function which
3075 actually appears in the source.
3078 static const struct d_standard_sub_info standard_subs[] =
3083 { 'a', NL ("std::allocator"),
3084 NL ("std::allocator"),
3086 { 'b', NL ("std::basic_string"),
3087 NL ("std::basic_string"),
3088 NL ("basic_string") },
3089 { 's', NL ("std::string"),
3090 NL ("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
3091 NL ("basic_string") },
3092 { 'i', NL ("std::istream"),
3093 NL ("std::basic_istream<char, std::char_traits<char> >"),
3094 NL ("basic_istream") },
3095 { 'o', NL ("std::ostream"),
3096 NL ("std::basic_ostream<char, std::char_traits<char> >"),
3097 NL ("basic_ostream") },
3098 { 'd', NL ("std::iostream"),
3099 NL ("std::basic_iostream<char, std::char_traits<char> >"),
3100 NL ("basic_iostream") }
3103 static struct demangle_component *
3104 d_substitution (struct d_info *di, int prefix)
3108 if (! d_check_char (di, 'S'))
3111 c = d_next_char (di);
3112 if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
3121 unsigned int new_id;
3124 new_id = id * 36 + c - '0';
3125 else if (IS_UPPER (c))
3126 new_id = id * 36 + c - 'A' + 10;
3132 c = d_next_char (di);
3139 if (id >= (unsigned int) di->next_sub)
3144 return di->subs[id];
3149 const struct d_standard_sub_info *p;
3150 const struct d_standard_sub_info *pend;
3152 verbose = (di->options & DMGL_VERBOSE) != 0;
3153 if (! verbose && prefix)
3157 peek = d_peek_char (di);
3158 if (peek == 'C' || peek == 'D')
3162 pend = (&standard_subs[0]
3163 + sizeof standard_subs / sizeof standard_subs[0]);
3164 for (p = &standard_subs[0]; p < pend; ++p)
3171 if (p->set_last_name != NULL)
3172 di->last_name = d_make_sub (di, p->set_last_name,
3173 p->set_last_name_len);
3176 s = p->full_expansion;
3181 s = p->simple_expansion;
3182 len = p->simple_len;
3184 di->expansion += len;
3185 return d_make_sub (di, s, len);
3193 /* Initialize a growable string. */
3196 d_growable_string_init (struct d_growable_string *dgs, size_t estimate)
3201 dgs->allocation_failure = 0;
3204 d_growable_string_resize (dgs, estimate);
3207 /* Grow a growable string to a given size. */
3210 d_growable_string_resize (struct d_growable_string *dgs, size_t need)
3215 if (dgs->allocation_failure)
3218 /* Start allocation at two bytes to avoid any possibility of confusion
3219 with the special value of 1 used as a return in *palc to indicate
3220 allocation failures. */
3221 newalc = dgs->alc > 0 ? dgs->alc : 2;
3222 while (newalc < need)
3225 newbuf = (char *) realloc (dgs->buf, newalc);
3232 dgs->allocation_failure = 1;
3239 /* Append a buffer to a growable string. */
3242 d_growable_string_append_buffer (struct d_growable_string *dgs,
3243 const char *s, size_t l)
3247 need = dgs->len + l + 1;
3248 if (need > dgs->alc)
3249 d_growable_string_resize (dgs, need);
3251 if (dgs->allocation_failure)
3254 memcpy (dgs->buf + dgs->len, s, l);
3255 dgs->buf[dgs->len + l] = '\0';
3259 /* Bridge growable strings to the callback mechanism. */
3262 d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
3264 struct d_growable_string *dgs = (struct d_growable_string*) opaque;
3266 d_growable_string_append_buffer (dgs, s, l);
3269 /* Initialize a print information structure. */
3272 d_print_init (struct d_print_info *dpi, int options,
3273 demangle_callbackref callback, void *opaque)
3275 dpi->options = options;
3277 dpi->last_char = '\0';
3278 dpi->templates = NULL;
3279 dpi->modifiers = NULL;
3281 dpi->callback = callback;
3282 dpi->opaque = opaque;
3284 dpi->demangle_failure = 0;
3287 /* Indicate that an error occurred during printing, and test for error. */
3290 d_print_error (struct d_print_info *dpi)
3292 dpi->demangle_failure = 1;
3296 d_print_saw_error (struct d_print_info *dpi)
3298 return dpi->demangle_failure != 0;
3301 /* Flush buffered characters to the callback. */
3304 d_print_flush (struct d_print_info *dpi)
3306 dpi->buf[dpi->len] = '\0';
3307 dpi->callback (dpi->buf, dpi->len, dpi->opaque);
3311 /* Append characters and buffers for printing. */
3314 d_append_char (struct d_print_info *dpi, char c)
3316 if (dpi->len == sizeof (dpi->buf) - 1)
3317 d_print_flush (dpi);
3319 dpi->buf[dpi->len++] = c;
3324 d_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
3328 for (i = 0; i < l; i++)
3329 d_append_char (dpi, s[i]);
3333 d_append_string (struct d_print_info *dpi, const char *s)
3335 d_append_buffer (dpi, s, strlen (s));
3339 d_append_num (struct d_print_info *dpi, long l)
3342 sprintf (buf,"%ld", l);
3343 d_append_string (dpi, buf);
3347 d_last_char (struct d_print_info *dpi)
3349 return dpi->last_char;
3352 /* Turn components into a human readable string. OPTIONS is the
3353 options bits passed to the demangler. DC is the tree to print.
3354 CALLBACK is a function to call to flush demangled string segments
3355 as they fill the intermediate buffer, and OPAQUE is a generalized
3356 callback argument. On success, this returns 1. On failure,
3357 it returns 0, indicating a bad parse. It does not use heap
3358 memory to build an output string, so cannot encounter memory
3359 allocation failure. */
3361 CP_STATIC_IF_GLIBCPP_V3
3363 cplus_demangle_print_callback (int options,
3364 const struct demangle_component *dc,
3365 demangle_callbackref callback, void *opaque)
3367 struct d_print_info dpi;
3369 d_print_init (&dpi, options, callback, opaque);
3371 d_print_comp (&dpi, dc);
3373 d_print_flush (&dpi);
3375 return ! d_print_saw_error (&dpi);
3378 /* Turn components into a human readable string. OPTIONS is the
3379 options bits passed to the demangler. DC is the tree to print.
3380 ESTIMATE is a guess at the length of the result. This returns a
3381 string allocated by malloc, or NULL on error. On success, this
3382 sets *PALC to the size of the allocated buffer. On failure, this
3383 sets *PALC to 0 for a bad parse, or to 1 for a memory allocation
3386 CP_STATIC_IF_GLIBCPP_V3
3388 cplus_demangle_print (int options, const struct demangle_component *dc,
3389 int estimate, size_t *palc)
3391 struct d_growable_string dgs;
3393 d_growable_string_init (&dgs, estimate);
3395 if (! cplus_demangle_print_callback (options, dc,
3396 d_growable_string_callback_adapter,
3404 *palc = dgs.allocation_failure ? 1 : dgs.alc;
3408 /* Returns the I'th element of the template arglist ARGS, or NULL on
3411 static struct demangle_component *
3412 d_index_template_argument (struct demangle_component *args, int i)
3414 struct demangle_component *a;
3420 if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3426 if (i != 0 || a == NULL)
3432 /* Returns the template argument from the current context indicated by DC,
3433 which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */
3435 static struct demangle_component *
3436 d_lookup_template_argument (struct d_print_info *dpi,
3437 const struct demangle_component *dc)
3439 if (dpi->templates == NULL)
3441 d_print_error (dpi);
3445 return d_index_template_argument
3446 (d_right (dpi->templates->template_decl),
3447 dc->u.s_number.number);
3450 /* Returns a template argument pack used in DC (any will do), or NULL. */
3452 static struct demangle_component *
3453 d_find_pack (struct d_print_info *dpi,
3454 const struct demangle_component *dc)
3456 struct demangle_component *a;
3462 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
3463 a = d_lookup_template_argument (dpi, dc);
3464 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3468 case DEMANGLE_COMPONENT_PACK_EXPANSION:
3471 case DEMANGLE_COMPONENT_NAME:
3472 case DEMANGLE_COMPONENT_OPERATOR:
3473 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
3474 case DEMANGLE_COMPONENT_SUB_STD:
3475 case DEMANGLE_COMPONENT_CHARACTER:
3476 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
3479 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
3480 return d_find_pack (dpi, dc->u.s_extended_operator.name);
3481 case DEMANGLE_COMPONENT_CTOR:
3482 return d_find_pack (dpi, dc->u.s_ctor.name);
3483 case DEMANGLE_COMPONENT_DTOR:
3484 return d_find_pack (dpi, dc->u.s_dtor.name);
3487 a = d_find_pack (dpi, d_left (dc));
3490 return d_find_pack (dpi, d_right (dc));
3494 /* Returns the length of the template argument pack DC. */
3497 d_pack_length (const struct demangle_component *dc)
3500 while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST
3501 && d_left (dc) != NULL)
3509 /* DC is a component of a mangled expression. Print it, wrapped in parens
3513 d_print_subexpr (struct d_print_info *dpi,
3514 const struct demangle_component *dc)
3517 if (dc->type == DEMANGLE_COMPONENT_NAME
3518 || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM)
3521 d_append_char (dpi, '(');
3522 d_print_comp (dpi, dc);
3524 d_append_char (dpi, ')');
3527 /* Subroutine to handle components. */
3530 d_print_comp (struct d_print_info *dpi,
3531 const struct demangle_component *dc)
3535 d_print_error (dpi);
3538 if (d_print_saw_error (dpi))
3543 case DEMANGLE_COMPONENT_NAME:
3544 if ((dpi->options & DMGL_JAVA) == 0)
3545 d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len);
3547 d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len);
3550 case DEMANGLE_COMPONENT_QUAL_NAME:
3551 case DEMANGLE_COMPONENT_LOCAL_NAME:
3552 d_print_comp (dpi, d_left (dc));
3553 if ((dpi->options & DMGL_JAVA) == 0)