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))
2727 /* We can get an unqualified name as an expression in the case of
2728 a dependent member access, i.e. decltype(T().i). */
2729 struct demangle_component *name = d_unqualified_name (di);
2732 if (d_peek_char (di) == 'I')
2733 return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
2734 d_template_args (di));
2740 struct demangle_component *op;
2743 op = d_operator_name (di);
2747 if (op->type == DEMANGLE_COMPONENT_OPERATOR)
2748 di->expansion += op->u.s_operator.op->len - 2;
2750 if (op->type == DEMANGLE_COMPONENT_OPERATOR
2751 && strcmp (op->u.s_operator.op->code, "st") == 0)
2752 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
2753 cplus_demangle_type (di));
2759 case DEMANGLE_COMPONENT_OPERATOR:
2760 args = op->u.s_operator.op->args;
2762 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
2763 args = op->u.s_extended_operator.args;
2765 case DEMANGLE_COMPONENT_CAST:
2774 struct demangle_component *operand;
2775 if (op->type == DEMANGLE_COMPONENT_CAST
2776 && d_check_char (di, '_'))
2777 operand = d_exprlist (di);
2779 operand = d_expression (di);
2780 return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
2785 struct demangle_component *left;
2786 struct demangle_component *right;
2788 left = d_expression (di);
2789 if (!strcmp (op->u.s_operator.op->code, "cl"))
2790 right = d_exprlist (di);
2792 right = d_expression (di);
2794 return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op,
2796 DEMANGLE_COMPONENT_BINARY_ARGS,
2801 struct demangle_component *first;
2802 struct demangle_component *second;
2804 first = d_expression (di);
2805 second = d_expression (di);
2806 return d_make_comp (di, DEMANGLE_COMPONENT_TRINARY, op,
2808 DEMANGLE_COMPONENT_TRINARY_ARG1,
2811 DEMANGLE_COMPONENT_TRINARY_ARG2,
2813 d_expression (di))));
2821 /* <expr-primary> ::= L <type> <(value) number> E
2822 ::= L <type> <(value) float> E
2823 ::= L <mangled-name> E
2826 static struct demangle_component *
2827 d_expr_primary (struct d_info *di)
2829 struct demangle_component *ret;
2831 if (! d_check_char (di, 'L'))
2833 if (d_peek_char (di) == '_'
2834 /* Workaround for G++ bug; see comment in write_template_arg. */
2835 || d_peek_char (di) == 'Z')
2836 ret = cplus_demangle_mangled_name (di, 0);
2839 struct demangle_component *type;
2840 enum demangle_component_type t;
2843 type = cplus_demangle_type (di);
2847 /* If we have a type we know how to print, we aren't going to
2848 print the type name itself. */
2849 if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
2850 && type->u.s_builtin.type->print != D_PRINT_DEFAULT)
2851 di->expansion -= type->u.s_builtin.type->len;
2853 /* Rather than try to interpret the literal value, we just
2854 collect it as a string. Note that it's possible to have a
2855 floating point literal here. The ABI specifies that the
2856 format of such literals is machine independent. That's fine,
2857 but what's not fine is that versions of g++ up to 3.2 with
2858 -fabi-version=1 used upper case letters in the hex constant,
2859 and dumped out gcc's internal representation. That makes it
2860 hard to tell where the constant ends, and hard to dump the
2861 constant in any readable form anyhow. We don't attempt to
2862 handle these cases. */
2864 t = DEMANGLE_COMPONENT_LITERAL;
2865 if (d_peek_char (di) == 'n')
2867 t = DEMANGLE_COMPONENT_LITERAL_NEG;
2871 while (d_peek_char (di) != 'E')
2873 if (d_peek_char (di) == '\0')
2877 ret = d_make_comp (di, t, type, d_make_name (di, s, d_str (di) - s));
2879 if (! d_check_char (di, 'E'))
2884 /* <local-name> ::= Z <(function) encoding> E <(entity) name> [<discriminator>]
2885 ::= Z <(function) encoding> E s [<discriminator>]
2888 static struct demangle_component *
2889 d_local_name (struct d_info *di)
2891 struct demangle_component *function;
2893 if (! d_check_char (di, 'Z'))
2896 function = d_encoding (di, 0);
2898 if (! d_check_char (di, 'E'))
2901 if (d_peek_char (di) == 's')
2904 if (! d_discriminator (di))
2906 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function,
2907 d_make_name (di, "string literal",
2908 sizeof "string literal" - 1));
2912 struct demangle_component *name;
2915 if (d_peek_char (di) == 'd')
2917 /* Default argument scope: d <number> _. */
2919 num = d_compact_number (di);
2928 /* Lambdas and unnamed types have internal discriminators. */
2929 case DEMANGLE_COMPONENT_LAMBDA:
2930 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
2933 if (! d_discriminator (di))
2937 name = d_make_default_arg (di, num, name);
2938 return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
2942 /* <discriminator> ::= _ <(non-negative) number>
2944 We demangle the discriminator, but we don't print it out. FIXME:
2945 We should print it out in verbose mode. */
2948 d_discriminator (struct d_info *di)
2952 if (d_peek_char (di) != '_')
2955 discrim = d_number (di);
2961 /* <closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _ */
2963 static struct demangle_component *
2964 d_lambda (struct d_info *di)
2966 struct demangle_component *tl;
2967 struct demangle_component *ret;
2970 if (! d_check_char (di, 'U'))
2972 if (! d_check_char (di, 'l'))
2975 tl = d_parmlist (di);
2979 if (! d_check_char (di, 'E'))
2982 num = d_compact_number (di);
2986 ret = d_make_empty (di);
2989 ret->type = DEMANGLE_COMPONENT_LAMBDA;
2990 ret->u.s_unary_num.sub = tl;
2991 ret->u.s_unary_num.num = num;
2994 if (! d_add_substitution (di, ret))
3000 /* <unnamed-type-name> ::= Ut [ <nonnegative number> ] _ */
3002 static struct demangle_component *
3003 d_unnamed_type (struct d_info *di)
3005 struct demangle_component *ret;
3008 if (! d_check_char (di, 'U'))
3010 if (! d_check_char (di, 't'))
3013 num = d_compact_number (di);
3017 ret = d_make_empty (di);
3020 ret->type = DEMANGLE_COMPONENT_UNNAMED_TYPE;
3021 ret->u.s_number.number = num;
3024 if (! d_add_substitution (di, ret))
3030 /* Add a new substitution. */
3033 d_add_substitution (struct d_info *di, struct demangle_component *dc)
3037 if (di->next_sub >= di->num_subs)
3039 di->subs[di->next_sub] = dc;
3044 /* <substitution> ::= S <seq-id> _
3054 If PREFIX is non-zero, then this type is being used as a prefix in
3055 a qualified name. In this case, for the standard substitutions, we
3056 need to check whether we are being used as a prefix for a
3057 constructor or destructor, and return a full template name.
3058 Otherwise we will get something like std::iostream::~iostream()
3059 which does not correspond particularly well to any function which
3060 actually appears in the source.
3063 static const struct d_standard_sub_info standard_subs[] =
3068 { 'a', NL ("std::allocator"),
3069 NL ("std::allocator"),
3071 { 'b', NL ("std::basic_string"),
3072 NL ("std::basic_string"),
3073 NL ("basic_string") },
3074 { 's', NL ("std::string"),
3075 NL ("std::basic_string<char, std::char_traits<char>, std::allocator<char> >"),
3076 NL ("basic_string") },
3077 { 'i', NL ("std::istream"),
3078 NL ("std::basic_istream<char, std::char_traits<char> >"),
3079 NL ("basic_istream") },
3080 { 'o', NL ("std::ostream"),
3081 NL ("std::basic_ostream<char, std::char_traits<char> >"),
3082 NL ("basic_ostream") },
3083 { 'd', NL ("std::iostream"),
3084 NL ("std::basic_iostream<char, std::char_traits<char> >"),
3085 NL ("basic_iostream") }
3088 static struct demangle_component *
3089 d_substitution (struct d_info *di, int prefix)
3093 if (! d_check_char (di, 'S'))
3096 c = d_next_char (di);
3097 if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
3106 unsigned int new_id;
3109 new_id = id * 36 + c - '0';
3110 else if (IS_UPPER (c))
3111 new_id = id * 36 + c - 'A' + 10;
3117 c = d_next_char (di);
3124 if (id >= (unsigned int) di->next_sub)
3129 return di->subs[id];
3134 const struct d_standard_sub_info *p;
3135 const struct d_standard_sub_info *pend;
3137 verbose = (di->options & DMGL_VERBOSE) != 0;
3138 if (! verbose && prefix)
3142 peek = d_peek_char (di);
3143 if (peek == 'C' || peek == 'D')
3147 pend = (&standard_subs[0]
3148 + sizeof standard_subs / sizeof standard_subs[0]);
3149 for (p = &standard_subs[0]; p < pend; ++p)
3156 if (p->set_last_name != NULL)
3157 di->last_name = d_make_sub (di, p->set_last_name,
3158 p->set_last_name_len);
3161 s = p->full_expansion;
3166 s = p->simple_expansion;
3167 len = p->simple_len;
3169 di->expansion += len;
3170 return d_make_sub (di, s, len);
3178 /* Initialize a growable string. */
3181 d_growable_string_init (struct d_growable_string *dgs, size_t estimate)
3186 dgs->allocation_failure = 0;
3189 d_growable_string_resize (dgs, estimate);
3192 /* Grow a growable string to a given size. */
3195 d_growable_string_resize (struct d_growable_string *dgs, size_t need)
3200 if (dgs->allocation_failure)
3203 /* Start allocation at two bytes to avoid any possibility of confusion
3204 with the special value of 1 used as a return in *palc to indicate
3205 allocation failures. */
3206 newalc = dgs->alc > 0 ? dgs->alc : 2;
3207 while (newalc < need)
3210 newbuf = (char *) realloc (dgs->buf, newalc);
3217 dgs->allocation_failure = 1;
3224 /* Append a buffer to a growable string. */
3227 d_growable_string_append_buffer (struct d_growable_string *dgs,
3228 const char *s, size_t l)
3232 need = dgs->len + l + 1;
3233 if (need > dgs->alc)
3234 d_growable_string_resize (dgs, need);
3236 if (dgs->allocation_failure)
3239 memcpy (dgs->buf + dgs->len, s, l);
3240 dgs->buf[dgs->len + l] = '\0';
3244 /* Bridge growable strings to the callback mechanism. */
3247 d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
3249 struct d_growable_string *dgs = (struct d_growable_string*) opaque;
3251 d_growable_string_append_buffer (dgs, s, l);
3254 /* Initialize a print information structure. */
3257 d_print_init (struct d_print_info *dpi, int options,
3258 demangle_callbackref callback, void *opaque)
3260 dpi->options = options;
3262 dpi->last_char = '\0';
3263 dpi->templates = NULL;
3264 dpi->modifiers = NULL;
3266 dpi->callback = callback;
3267 dpi->opaque = opaque;
3269 dpi->demangle_failure = 0;
3272 /* Indicate that an error occurred during printing, and test for error. */
3275 d_print_error (struct d_print_info *dpi)
3277 dpi->demangle_failure = 1;
3281 d_print_saw_error (struct d_print_info *dpi)
3283 return dpi->demangle_failure != 0;
3286 /* Flush buffered characters to the callback. */
3289 d_print_flush (struct d_print_info *dpi)
3291 dpi->buf[dpi->len] = '\0';
3292 dpi->callback (dpi->buf, dpi->len, dpi->opaque);
3296 /* Append characters and buffers for printing. */
3299 d_append_char (struct d_print_info *dpi, char c)
3301 if (dpi->len == sizeof (dpi->buf) - 1)
3302 d_print_flush (dpi);
3304 dpi->buf[dpi->len++] = c;
3309 d_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
3313 for (i = 0; i < l; i++)
3314 d_append_char (dpi, s[i]);
3318 d_append_string (struct d_print_info *dpi, const char *s)
3320 d_append_buffer (dpi, s, strlen (s));
3324 d_append_num (struct d_print_info *dpi, long l)
3327 sprintf (buf,"%ld", l);
3328 d_append_string (dpi, buf);
3332 d_last_char (struct d_print_info *dpi)
3334 return dpi->last_char;
3337 /* Turn components into a human readable string. OPTIONS is the
3338 options bits passed to the demangler. DC is the tree to print.
3339 CALLBACK is a function to call to flush demangled string segments
3340 as they fill the intermediate buffer, and OPAQUE is a generalized
3341 callback argument. On success, this returns 1. On failure,
3342 it returns 0, indicating a bad parse. It does not use heap
3343 memory to build an output string, so cannot encounter memory
3344 allocation failure. */
3346 CP_STATIC_IF_GLIBCPP_V3
3348 cplus_demangle_print_callback (int options,
3349 const struct demangle_component *dc,
3350 demangle_callbackref callback, void *opaque)
3352 struct d_print_info dpi;
3354 d_print_init (&dpi, options, callback, opaque);
3356 d_print_comp (&dpi, dc);
3358 d_print_flush (&dpi);
3360 return ! d_print_saw_error (&dpi);
3363 /* Turn components into a human readable string. OPTIONS is the
3364 options bits passed to the demangler. DC is the tree to print.
3365 ESTIMATE is a guess at the length of the result. This returns a
3366 string allocated by malloc, or NULL on error. On success, this
3367 sets *PALC to the size of the allocated buffer. On failure, this
3368 sets *PALC to 0 for a bad parse, or to 1 for a memory allocation
3371 CP_STATIC_IF_GLIBCPP_V3
3373 cplus_demangle_print (int options, const struct demangle_component *dc,
3374 int estimate, size_t *palc)
3376 struct d_growable_string dgs;
3378 d_growable_string_init (&dgs, estimate);
3380 if (! cplus_demangle_print_callback (options, dc,
3381 d_growable_string_callback_adapter,
3389 *palc = dgs.allocation_failure ? 1 : dgs.alc;
3393 /* Returns the I'th element of the template arglist ARGS, or NULL on
3396 static struct demangle_component *
3397 d_index_template_argument (struct demangle_component *args, int i)
3399 struct demangle_component *a;
3405 if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3411 if (i != 0 || a == NULL)
3417 /* Returns the template argument from the current context indicated by DC,
3418 which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */
3420 static struct demangle_component *
3421 d_lookup_template_argument (struct d_print_info *dpi,
3422 const struct demangle_component *dc)
3424 if (dpi->templates == NULL)
3426 d_print_error (dpi);
3430 return d_index_template_argument
3431 (d_right (dpi->templates->template_decl),
3432 dc->u.s_number.number);
3435 /* Returns a template argument pack used in DC (any will do), or NULL. */
3437 static struct demangle_component *
3438 d_find_pack (struct d_print_info *dpi,
3439 const struct demangle_component *dc)
3441 struct demangle_component *a;
3447 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
3448 a = d_lookup_template_argument (dpi, dc);
3449 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3453 case DEMANGLE_COMPONENT_PACK_EXPANSION:
3456 case DEMANGLE_COMPONENT_NAME:
3457 case DEMANGLE_COMPONENT_OPERATOR:
3458 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
3459 case DEMANGLE_COMPONENT_SUB_STD:
3460 case DEMANGLE_COMPONENT_CHARACTER:
3461 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
3464 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
3465 return d_find_pack (dpi, dc->u.s_extended_operator.name);
3466 case DEMANGLE_COMPONENT_CTOR:
3467 return d_find_pack (dpi, dc->u.s_ctor.name);
3468 case DEMANGLE_COMPONENT_DTOR:
3469 return d_find_pack (dpi, dc->u.s_dtor.name);
3472 a = d_find_pack (dpi, d_left (dc));
3475 return d_find_pack (dpi, d_right (dc));
3479 /* Returns the length of the template argument pack DC. */
3482 d_pack_length (const struct demangle_component *dc)
3485 while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST
3486 && d_left (dc) != NULL)
3494 /* DC is a component of a mangled expression. Print it, wrapped in parens
3498 d_print_subexpr (struct d_print_info *dpi,
3499 const struct demangle_component *dc)
3502 if (dc->type == DEMANGLE_COMPONENT_NAME
3503 || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM)
3506 d_append_char (dpi, '(');
3507 d_print_comp (dpi, dc);
3509 d_append_char (dpi, ')');
3512 /* Subroutine to handle components. */
3515 d_print_comp (struct d_print_info *dpi,
3516 const struct demangle_component *dc)
3520 d_print_error (dpi);
3523 if (d_print_saw_error (dpi))
3528 case DEMANGLE_COMPONENT_NAME:
3529 if ((dpi->options & DMGL_JAVA) == 0)
3530 d_append_buffer (dpi, dc->u.s_name.s, dc->u.s_name.len);
3532 d_print_java_identifier (dpi, dc->u.s_name.s, dc->u.s_name.len);
3535 case DEMANGLE_COMPONENT_QUAL_NAME:
3536 case DEMANGLE_COMPONENT_LOCAL_NAME:
3537 d_print_comp (dpi, d_left (dc));
3538 if ((dpi->options & DMGL_JAVA) == 0)
3539 d_append_string (dpi, "::");
3541 d_append_char (dpi, '.');
3542 d_print_comp (dpi, d_right (dc));
3545 case DEMANGLE_COMPONENT_TYPED_NAME:
3547 struct d_print_mod *hold_modifiers;
3548 struct demangle_component *typed_name;
3549 struct d_print_mod adpm[4];
3551 struct d_print_template dpt;
3553 /* Pass the name down to the type so that it can be printed in
3554 the right place for the type. We also have to pass down
3555 any CV-qualifiers, which apply to the this parameter. */
3556 hold_modifiers = dpi->modifiers;
3559 typed_name = d_left (dc);
3560 while (typed_name != NULL)
3562 if (i >= sizeof adpm / sizeof adpm[0])
3564 d_print_error (dpi);
3568 adpm[i].next = dpi->modifiers;
3569 dpi->modifiers = &adpm[i];
3570 adpm[i].mod = typed_name;
3571 adpm[i].printed = 0;
3572 adpm[i].templates = dpi->templates;
3575 if (typed_name->type != DEMANGLE_COMPONENT_RESTRICT_THIS
3576 && typed_name->type != DEMANGLE_COMPONENT_VOLATILE_THIS
3577 && typed_name->type != DEMANGLE_COMPONENT_CONST_THIS)
3580 typed_name = d_left (typed_name);
3583 if (typed_name == NULL)
3585 d_print_error (dpi);
3589 /* If typed_name is a template, then it applies to the
3590 function type as well. */
3591 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
3593 dpt.next = dpi->templates;
3594 dpi->templates = &dpt;
3595 dpt.template_decl = typed_name;
3598 /* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then
3599 there may be CV-qualifiers on its right argument which
3600 really apply here; this happens when parsing a class which
3601 is local to a function. */
3602 if (typed_name->type == DEMANGLE_COMPONENT_LOCAL_NAME)
3604 struct demangle_component *local_name;
3606 local_name = d_right (typed_name);
3607 if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
3608 local_name = local_name->u.s_unary_num.sub;
3609 while (local_name->type == DEMANGLE_COMPONENT_RESTRICT_THIS
3610 || local_name->type == DEMANGLE_COMPONENT_VOLATILE_THIS
3611 || local_name->type == DEMANGLE_COMPONENT_CONST_THIS)
3613 if (i >= sizeof adpm / sizeof adpm[0])
3615 d_print_error (dpi);
3619 adpm[i] = adpm[i - 1];
3620 adpm[i].next = &adpm[i - 1];
3621 dpi->modifiers = &adpm[i];
3623 adpm[i - 1].mod = local_name;
3624 adpm[i - 1].printed = 0;
3625 adpm[i - 1].templates = dpi->templates;
3628 local_name = d_left (local_name);
3632 d_print_comp (dpi, d_right (dc));
3634 if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
3635 dpi->templates = dpt.next;
3637 /* If the modifiers didn't get printed by the type, print them
3642 if (! adpm[i].printed)
3644 d_append_char (dpi, ' ');
3645 d_print_mod (dpi, adpm[i].mod);
3649 dpi->modifiers = hold_modifiers;
3654 case DEMANGLE_COMPONENT_TEMPLATE:
3656 struct d_print_mod *hold_dpm;
3657 struct demangle_component *dcl;
3659 /* Don't push modifiers into a template definition. Doing so
3660 could give the wrong definition for a template argument.
3661 Instead, treat the template essentially as a name. */
3663 hold_dpm = dpi->modifiers;
3664 dpi->modifiers = NULL;
3668 if ((dpi->options & DMGL_JAVA) != 0
3669 && dcl->type == DEMANGLE_COMPONENT_NAME
3670 && dcl->u.s_name.len == 6
3671 && strncmp (dcl->u.s_name.s, "JArray", 6) == 0)
3673 /* Special-case Java arrays, so that JArray<TYPE> appears
3674 instead as TYPE[]. */
3676 d_print_comp (dpi, d_right (dc));
3677 d_append_string (dpi, "[]");
3681 d_print_comp (dpi, dcl);
3682 if (d_last_char (dpi) == '<')
3683 d_append_char (dpi, ' ');
3684 d_append_char (dpi, '<');
3685 d_print_comp (dpi, d_right (dc));
3686 /* Avoid generating two consecutive '>' characters, to avoid
3687 the C++ syntactic ambiguity. */
3688 if (d_last_char (dpi) == '>')
3689 d_append_char (dpi, ' ');
3690 d_append_char (dpi, '>');
3693 dpi->modifiers = hold_dpm;
3698 case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
3700 struct d_print_template *hold_dpt;
3701 struct demangle_component *a = d_lookup_template_argument (dpi, dc);
3703 if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
3704 a = d_index_template_argument (a, dpi->pack_index);
3708 d_print_error (dpi);
3712 /* While processing this parameter, we need to pop the list of
3713 templates. This is because the template parameter may
3714 itself be a reference to a parameter of an outer
3717 hold_dpt = dpi->templates;
3718 dpi->templates = hold_dpt->next;
3720 d_print_comp (dpi, a);
3722 dpi->templates = hold_dpt;
3727 case DEMANGLE_COMPONENT_CTOR:
3728 d_print_comp (dpi, dc->u.s_ctor.name);
3731 case DEMANGLE_COMPONENT_DTOR:
3732 d_append_char (dpi, '~');
3733 d_print_comp (dpi, dc->u.s_dtor.name);
3736 case DEMANGLE_COMPONENT_VTABLE:
3737 d_append_string (dpi, "vtable for ");
3738 d_print_comp (dpi, d_left (dc));
3741 case DEMANGLE_COMPONENT_VTT:
3742 d_append_string (dpi, "VTT for ");
3743 d_print_comp (dpi, d_left (dc));
3746 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
3747 d_append_string (dpi, "construction vtable for ");
3748 d_print_comp (dpi, d_left (dc));
3749 d_append_string (dpi, "-in-");
3750 d_print_comp (dpi, d_right (dc));
3753 case DEMANGLE_COMPONENT_TYPEINFO:
3754 d_append_string (dpi, "typeinfo for ");
3755 d_print_comp (dpi, d_left (dc));
3758 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
3759 d_append_string (dpi, "typeinfo name for ");
3760 d_print_comp (dpi, d_left (dc));
3763 case DEMANGLE_COMPONENT_TYPEINFO_FN:
3764 d_append_string (dpi, "typeinfo fn for ");
3765 d_print_comp (dpi, d_left (dc));
3768 case DEMANGLE_COMPONENT_THUNK:
3769 d_append_string (dpi, "non-virtual thunk to ");
3770 d_print_comp (dpi, d_left (dc));
3773 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
3774 d_append_string (dpi, "virtual thunk to ");
3775 d_print_comp (dpi, d_left (dc));
3778 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
3779 d_append_string (dpi, "covariant return thunk to ");
3780 d_print_comp (dpi, d_left (dc));
3783 case DEMANGLE_COMPONENT_JAVA_CLASS:
3784 d_append_string (dpi, "java Class for ");
3785 d_print_comp (dpi, d_left (dc));
3788 case DEMANGLE_COMPONENT_GUARD:
3789 d_append_string (dpi, "guard variable for ");
3790 d_print_comp (dpi, d_left (dc));
3793 case DEMANGLE_COMPONENT_REFTEMP:
3794 d_append_string (dpi, "reference temporary for ");
3795 d_print_comp (dpi, d_left (dc));
3798 case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
3799 d_append_string (dpi, "hidden alias for ");
3800 d_print_comp (dpi, d_left (dc));
3803 case DEMANGLE_COMPONENT_SUB_STD:
3804 d_append_buffer (dpi, dc->u.s_string.string, dc->u.s_string.len);
3807 case DEMANGLE_COMPONENT_RESTRICT:
3808 case DEMANGLE_COMPONENT_VOLATILE:
3809 case DEMANGLE_COMPONENT_CONST:
3811 struct d_print_mod *pdpm;
3813 /* When printing arrays, it's possible to have cases where the
3814 same CV-qualifier gets pushed on the stack multiple times.
3815 We only need to print it once. */
3817 for (pdpm = dpi->modifiers; pdpm != NULL; pdpm = pdpm->next)
3819 if (! pdpm->printed)
3821 if (pdpm->mod->type != DEMANGLE_COMPONENT_RESTRICT
3822 && pdpm->mod->type != DEMANGLE_COMPONENT_VOLATILE
3823 && pdpm->mod->type != DEMANGLE_COMPONENT_CONST)
3825 if (pdpm->mod->type == dc->type)
3827 d_print_comp (dpi, d_left (dc));
3834 case DEMANGLE_COMPONENT_RESTRICT_THIS:
3835 case DEMANGLE_COMPONENT_VOLATILE_THIS:
3836 case DEMANGLE_COMPONENT_CONST_THIS:
3837 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
3838 case DEMANGLE_COMPONENT_POINTER:
3839 case DEMANGLE_COMPONENT_REFERENCE:
3840 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
3841 case DEMANGLE_COMPONENT_COMPLEX:
3842 case DEMANGLE_COMPONENT_IMAGINARY:
3844 /* We keep a list of modifiers on the stack. */
3845 struct d_print_mod dpm;
3847 dpm.next = dpi->modifiers;
3848 dpi->modifiers = &dpm;
3851 dpm.templates = dpi->templates;
3853 d_print_comp (dpi, d_left (dc));
3855 /* If the modifier didn't get printed by the type, print it
3858 d_print_mod (dpi, dc);
3860 dpi->modifiers = dpm.next;
3865 case DEMANGLE_COMPONENT_BUILTIN_TYPE:
3866 if ((dpi->options & DMGL_JAVA) == 0)
3867 d_append_buffer (dpi, dc->u.s_builtin.type->name,
3868 dc->u.s_builtin.type->len);
3870 d_append_buffer (dpi, dc->u.s_builtin.type->java_name,
3871 dc->u.s_builtin.type->java_len);
3874 case DEMANGLE_COMPONENT_VENDOR_TYPE:
3875 d_print_comp (dpi, d_left (dc));
3878 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
3880 if ((dpi->options & DMGL_RET_POSTFIX) != 0)
3881 d_print_function_type (dpi, dc, dpi->modifiers);
3883 /* Print return type if present */
3884 if (d_left (dc) != NULL)
3886 struct d_print_mod dpm;
3888 /* We must pass this type down as a modifier in order to
3889 print it in the right location. */
3890 dpm.next = dpi->modifiers;
3891 dpi->modifiers = &dpm;
3894 dpm.templates = dpi->templates;
3896 d_print_comp (dpi, d_left (dc));
3898 dpi->modifiers = dpm.next;
3903 /* In standard prefix notation, there is a space between the
3904 return type and the function signature. */
3905 if ((dpi->options & DMGL_RET_POSTFIX) == 0)
3906 d_append_char (dpi, ' ');
3909 if ((dpi->options & DMGL_RET_POSTFIX) == 0)
3910 d_print_function_type (dpi, dc, dpi->modifiers);
3915 case DEMANGLE_COMPONENT_ARRAY_TYPE:
3917 struct d_print_mod *hold_modifiers;
3918 struct d_print_mod adpm[4];
3920 struct d_print_mod *pdpm;
3922 /* We must pass this type down as a modifier in order to print
3923 multi-dimensional arrays correctly. If the array itself is
3924 CV-qualified, we act as though the element type were
3925 CV-qualified. We do this by copying the modifiers down
3926 rather than fiddling pointers, so that we don't wind up
3927 with a d_print_mod higher on the stack pointing into our
3928 stack frame after we return. */
3930 hold_modifiers = dpi->modifiers;
3932 adpm[0].next = hold_modifiers;
3933 dpi->modifiers = &adpm[0];
3935 adpm[0].printed = 0;
3936 adpm[0].templates = dpi->templates;
3939 pdpm = hold_modifiers;
3941 && (pdpm->mod->type == DEMANGLE_COMPONENT_RESTRICT
3942 || pdpm->mod->type == DEMANGLE_COMPONENT_VOLATILE
3943 || pdpm->mod->type == DEMANGLE_COMPONENT_CONST))
3945 if (! pdpm->printed)
3947 if (i >= sizeof adpm / sizeof adpm[0])
3949 d_print_error (dpi);
3954 adpm[i].next = dpi->modifiers;
3955 dpi->modifiers = &adpm[i];
3963 d_print_comp (dpi, d_right (dc));
3965 dpi->modifiers = hold_modifiers;
3967 if (adpm[0].printed)
3973 d_print_mod (dpi, adpm[i].mod);
3976 d_print_array_type (dpi, dc, dpi->modifiers);
3981 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
3982 case DEMANGLE_COMPONENT_VECTOR_TYPE:
3984 struct d_print_mod dpm;
3986 dpm.next = dpi->modifiers;
3987 dpi->modifiers = &dpm;
3990 dpm.templates = dpi->templates;
3992 d_print_comp (dpi, d_right (dc));
3994 /* If the modifier didn't get printed by the type, print it
3997 d_print_mod (dpi, dc);
3999 dpi->modifiers = dpm.next;
4004 case DEMANGLE_COMPONENT_FIXED_TYPE:
4005 if (dc->u.s_fixed.sat)
4006 d_append_string (dpi, "_Sat ");
4007 /* Don't print "int _Accum". */
4008 if (dc->u.s_fixed.length->u.s_builtin.type
4009 != &cplus_demangle_builtin_types['i'-'a'])
4011 d_print_comp (dpi, dc->u.s_fixed.length);
4012 d_append_char (dpi, ' ');
4014 if (dc->u.s_fixed.accum)
4015 d_append_string (dpi, "_Accum");
4017 d_append_string (dpi, "_Fract");
4020 case DEMANGLE_COMPONENT_ARGLIST:
4021 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
4022 if (d_left (dc) != NULL)
4023 d_print_comp (dpi, d_left (dc));
4024 if (d_right (dc) != NULL)
4027 d_append_string (dpi, ", ");
4029 d_print_comp (dpi, d_right (dc));
4030 /* If that didn't print anything (which can happen with empty
4031 template argument packs), remove the comma and space. */
4032 if (dpi->len == len)
4037 case DEMANGLE_COMPONENT_OPERATOR:
4041 d_append_string (dpi, "operator");
4042 c = dc->u.s_operator.op->name[0];
4044 d_append_char (dpi, ' ');
4045 d_append_buffer (dpi, dc->u.s_operator.op->name,
4046 dc->u.s_operator.op->len);
4050 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
4051 d_append_string (dpi, "operator ");
4052 d_print_comp (dpi, dc->u.s_extended_operator.name);
4055 case DEMANGLE_COMPONENT_CAST:
4056 d_append_string (dpi, "operator ");
4057 d_print_cast (dpi, dc);
4060 case DEMANGLE_COMPONENT_UNARY:
4061 if (d_left (dc)->type != DEMANGLE_COMPONENT_CAST)
4062 d_print_expr_op (dpi, d_left (dc));
4065 d_append_char (dpi, '(');
4066 d_print_cast (dpi, d_left (dc));
4067 d_append_char (dpi, ')');
4069 d_print_subexpr (dpi, d_right (dc));
4072 case DEMANGLE_COMPONENT_BINARY:
4073 if (d_right (dc)->type != DEMANGLE_COMPONENT_BINARY_ARGS)
4075 d_print_error (dpi);
4079 /* We wrap an expression which uses the greater-than operator in
4080 an extra layer of parens so that it does not get confused
4081 with the '>' which ends the template parameters. */
4082 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
4083 && d_left (dc)->u.s_operator.op->len == 1
4084 && d_left (dc)->u.s_operator.op->name[0] == '>')
4085 d_append_char (dpi, '(');
4087 d_print_subexpr (dpi, d_left (d_right (dc)));
4088 if (strcmp (d_left (dc)->u.s_operator.op->code, "ix") == 0)
4090 d_append_char (dpi, '[');
4091 d_print_comp (dpi, d_right (d_right (dc)));
4092 d_append_char (dpi, ']');
4096 if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") != 0)
4097 d_print_expr_op (dpi, d_left (dc));
4098 d_print_subexpr (dpi, d_right (d_right (dc)));
4101 if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
4102 && d_left (dc)->u.s_operator.op->len == 1
4103 && d_left (dc)->u.s_operator.op->name[0] == '>')
4104 d_append_char (dpi, ')');
4108 case DEMANGLE_COMPONENT_BINARY_ARGS:
4109 /* We should only see this as part of DEMANGLE_COMPONENT_BINARY. */
4110 d_print_error (dpi);
4113 case DEMANGLE_COMPONENT_TRINARY:
4114 if (d_right (dc)->type != DEMANGLE_COMPONENT_TRINARY_ARG1
4115 || d_right (d_right (dc))->type != DEMANGLE_COMPONENT_TRINARY_ARG2)
4117 d_print_error (dpi);
4120 d_print_subexpr (dpi, d_left (d_right (dc)));
4121 d_print_expr_op (dpi, d_left (dc));
4122 d_print_subexpr (dpi, d_left (d_right (d_right (dc))));
4123 d_append_string (dpi, " : ");
4124 d_print_subexpr (dpi, d_right (d_right (d_right (dc))));
4127 case DEMANGLE_COMPONENT_TRINARY_ARG1:
4128 case DEMANGLE_COMPONENT_TRINARY_ARG2:
4129 /* We should only see these are part of DEMANGLE_COMPONENT_TRINARY. */
4130 d_print_error (dpi);
4133 case DEMANGLE_COMPONENT_LITERAL:
4134 case DEMANGLE_COMPONENT_LITERAL_NEG:
4136 enum d_builtin_type_print tp;
4138 /* For some builtin types, produce simpler output. */
4139 tp = D_PRINT_DEFAULT;
4140 if (d_left (dc)->type == DEMANGLE_COMPONENT_BUILTIN_TYPE)
4142 tp = d_left (dc)->u.s_builtin.type->print;
4146 case D_PRINT_UNSIGNED:
4148 case D_PRINT_UNSIGNED_LONG:
4149 case D_PRINT_LONG_LONG:
4150 case D_PRINT_UNSIGNED_LONG_LONG:
4151 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME)
4153 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
4154 d_append_char (dpi, '-');
4155 d_print_comp (dpi, d_right (dc));
4160 case D_PRINT_UNSIGNED:
4161 d_append_char (dpi, 'u');
4164 d_append_char (dpi, 'l');
4166 case D_PRINT_UNSIGNED_LONG:
4167 d_append_string (dpi, "ul");
4169 case D_PRINT_LONG_LONG:
4170 d_append_string (dpi, "ll");
4172 case D_PRINT_UNSIGNED_LONG_LONG:
4173 d_append_string (dpi, "ull");
4181 if (d_right (dc)->type == DEMANGLE_COMPONENT_NAME
4182 && d_right (dc)->u.s_name.len == 1
4183 && dc->type == DEMANGLE_COMPONENT_LITERAL)
4185 switch (d_right (dc)->u.s_name.s[0])
4188 d_append_string (dpi, "false");
4191 d_append_string (dpi, "true");
4204 d_append_char (dpi, '(');
4205 d_print_comp (dpi, d_left (dc));
4206 d_append_char (dpi, ')');
4207 if (dc->type == DEMANGLE_COMPONENT_LITERAL_NEG)
4208 d_append_char (dpi, '-');
4209 if (tp == D_PRINT_FLOAT)
4210 d_append_char (dpi, '[');
4211 d_print_comp (dpi, d_right (dc));
4212 if (tp == D_PRINT_FLOAT)
4213 d_append_char (dpi, ']');
4217 case DEMANGLE_COMPONENT_NUMBER:
4218 d_append_num (dpi, dc->u.s_number.number);
4221 case DEMANGLE_COMPONENT_JAVA_RESOURCE:
4222 d_append_string (dpi, "java resource ");
4223 d_print_comp (dpi, d_left (dc));
4226 case DEMANGLE_COMPONENT_COMPOUND_NAME:
4227 d_print_comp (dpi, d_left (dc));
4228 d_print_comp (dpi, d_right (dc));
4231 case DEMANGLE_COMPONENT_CHARACTER:
4232 d_append_char (dpi, dc->u.s_character.character);
4235 case DEMANGLE_COMPONENT_DECLTYPE:
4236 d_append_string (dpi, "decltype (");
4237 d_print_comp (dpi, d_left (dc));
4238 d_append_char (dpi, ')');
4241 case DEMANGLE_COMPONENT_PACK_EXPANSION:
4245 struct demangle_component *a = d_find_pack (dpi, d_left (dc));
4248 /* d_find_pack won't find anything if the only packs involved
4249 in this expansion are function parameter packs; in that
4250 case, just print the pattern and "...". */
4251 d_print_subexpr (dpi, d_left (dc));
4252 d_append_string (dpi, "...");
4256 len = d_pack_length (a);
4258 for (i = 0; i < len; ++i)
4260 dpi->pack_index = i;
4261 d_print_comp (dpi, dc);
4263 d_append_string (dpi, ", ");
4268 case DEMANGLE_COMPONENT_FUNCTION_PARAM:
4269 d_append_string (dpi, "{parm#");
4270 d_append_num (dpi, dc->u.s_number.number + 1);
4271 d_append_char (dpi, '}');
4274 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
4275 d_append_string (dpi, "global constructors keyed to ");
4276 d_print_comp (dpi, dc->u.s_binary.left);
4279 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
4280 d_append_string (dpi, "global destructors keyed to ");
4281 d_print_comp (dpi, dc->u.s_binary.left);
4284 case DEMANGLE_COMPONENT_LAMBDA:
4285 d_append_string (dpi, "{lambda(");
4286 d_print_comp (dpi, dc->u.s_unary_num.sub);
4287 d_append_string (dpi, ")#");
4288 d_append_num (dpi, dc->u.s_unary_num.num + 1);
4289 d_append_char (dpi, '}');
4292 case DEMANGLE_COMPONENT_UNNAMED_TYPE:
4293 d_append_string (dpi, "{unnamed type#");
4294 d_append_num (dpi, dc->u.s_number.number + 1);
4295 d_append_char (dpi, '}');
4299 d_print_error (dpi);
4304 /* Print a Java dentifier. For Java we try to handle encoded extended
4305 Unicode characters. The C++ ABI doesn't mention Unicode encoding,
4306 so we don't it for C++. Characters are encoded as
4310 d_print_java_identifier (struct d_print_info *dpi, const char *name, int len)
4316 for (p = name; p < end; ++p)
4327 for (q = p + 3; q < end; ++q)
4333 else if (*q >= 'A' && *q <= 'F')
4334 dig = *q - 'A' + 10;
4335 else if (*q >= 'a' && *q <= 'f')
4336 dig = *q - 'a' + 10;
4342 /* If the Unicode character is larger than 256, we don't try
4343 to deal with it here. FIXME. */
4344 if (q < end && *q == '_' && c < 256)
4346 d_append_char (dpi, c);
4352 d_append_char (dpi, *p);
4356 /* Print a list of modifiers. SUFFIX is 1 if we are printing
4357 qualifiers on this after printing a function. */
4360 d_print_mod_list (struct d_print_info *dpi,
4361 struct d_print_mod *mods, int suffix)
4363 struct d_print_template *hold_dpt;
4365 if (mods == NULL || d_print_saw_error (dpi))
4370 && (mods->mod->type == DEMANGLE_COMPONENT_RESTRICT_THIS
4371 || mods->mod->type == DEMANGLE_COMPONENT_VOLATILE_THIS
4372 || mods->mod->type == DEMANGLE_COMPONENT_CONST_THIS)))
4374 d_print_mod_list (dpi, mods->next, suffix);
4380 hold_dpt = dpi->templates;
4381 dpi->templates = mods->templates;
4383 if (mods->mod->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
4385 d_print_function_type (dpi, mods->mod, mods->next);
4386 dpi->templates = hold_dpt;
4389 else if (mods->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
4391 d_print_array_type (dpi, mods->mod, mods->next);
4392 dpi->templates = hold_dpt;
4395 else if (mods->mod->type == DEMANGLE_COMPONENT_LOCAL_NAME)
4397 struct d_print_mod *hold_modifiers;
4398 struct demangle_component *dc;
4400 /* When this is on the modifier stack, we have pulled any
4401 qualifiers off the right argument already. Otherwise, we
4402 print it as usual, but don't let the left argument see any
4405 hold_modifiers = dpi->modifiers;
4406 dpi->modifiers = NULL;
4407 d_print_comp (dpi, d_left (mods->mod));
4408 dpi->modifiers = hold_modifiers;
4410 if ((dpi->options & DMGL_JAVA) == 0)
4411 d_append_string (dpi, "::");
4413 d_append_char (dpi, '.');
4415 dc = d_right (mods->mod);
4417 if (dc->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
4419 d_append_string (dpi, "{default arg#");
4420 d_append_num (dpi, dc->u.s_unary_num.num + 1);
4421 d_append_string (dpi, "}::");
4422 dc = dc->u.s_unary_num.sub;
4425 while (dc->type == DEMANGLE_COMPONENT_RESTRICT_THIS
4426 || dc->type == DEMANGLE_COMPONENT_VOLATILE_THIS
4427 || dc->type == DEMANGLE_COMPONENT_CONST_THIS)
4430 d_print_comp (dpi, dc);
4432 dpi->templates = hold_dpt;
4436 d_print_mod (dpi, mods->mod);
4438 dpi->templates = hold_dpt;
4440 d_print_mod_list (dpi, mods->next, suffix);
4443 /* Print a modifier. */
4446 d_print_mod (struct d_print_info *dpi,
4447 const struct demangle_component *mod)
4451 case DEMANGLE_COMPONENT_RESTRICT:
4452 case DEMANGLE_COMPONENT_RESTRICT_THIS:
4453 d_append_string (dpi, " restrict");
4455 case DEMANGLE_COMPONENT_VOLATILE:
4456 case DEMANGLE_COMPONENT_VOLATILE_THIS:
4457 d_append_string (dpi, " volatile");
4459 case DEMANGLE_COMPONENT_CONST:
4460 case DEMANGLE_COMPONENT_CONST_THIS:
4461 d_append_string (dpi, " const");
4463 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
4464 d_append_char (dpi, ' ');
4465 d_print_comp (dpi, d_right (mod));
4467 case DEMANGLE_COMPONENT_POINTER:
4468 /* There is no pointer symbol in Java. */
4469 if ((dpi->options & DMGL_JAVA) == 0)
4470 d_append_char (dpi, '*');
4472 case DEMANGLE_COMPONENT_REFERENCE:
4473 d_append_char (dpi, '&');
4475 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
4476 d_append_string (dpi, "&&");
4478 case DEMANGLE_COMPONENT_COMPLEX:
4479 d_append_string (dpi, "complex ");
4481 case DEMANGLE_COMPONENT_IMAGINARY:
4482 d_append_string (dpi, "imaginary ");
4484 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
4485 if (d_last_char (dpi) != '(')
4486 d_append_char (dpi, ' ');
4487 d_print_comp (dpi, d_left (mod));
4488 d_append_string (dpi, "::*");
4490 case DEMANGLE_COMPONENT_TYPED_NAME:
4491 d_print_comp (dpi, d_left (mod));
4493 case DEMANGLE_COMPONENT_VECTOR_TYPE:
4494 d_append_string (dpi, " vector[");
4495 d_print_comp (dpi, d_left (mod));
4496 d_append_char (dpi, ']');
4500 /* Otherwise, we have something that won't go back on the
4501 modifier stack, so we can just print it. */
4502 d_print_comp (dpi, mod);
4507 /* Print a function type, except for the return type. */
4510 d_print_function_type (struct d_print_info *dpi,
4511 const struct demangle_component *dc,
4512 struct d_print_mod *mods)
4517 struct d_print_mod *p;
4518 struct d_print_mod *hold_modifiers;
4523 for (p = mods; p != NULL; p = p->next)
4529 switch (p->mod->type)
4531 case DEMANGLE_COMPONENT_POINTER:
4532 case DEMANGLE_COMPONENT_REFERENCE:
4533 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
4536 case DEMANGLE_COMPONENT_RESTRICT:
4537 case DEMANGLE_COMPONENT_VOLATILE:
4538 case DEMANGLE_COMPONENT_CONST:
4539 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
4540 case DEMANGLE_COMPONENT_COMPLEX:
4541 case DEMANGLE_COMPONENT_IMAGINARY:
4542 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
4546 case DEMANGLE_COMPONENT_RESTRICT_THIS:
4547 case DEMANGLE_COMPONENT_VOLATILE_THIS:
4548 case DEMANGLE_COMPONENT_CONST_THIS:
4557 if (d_left (dc) != NULL && ! saw_mod)
4564 if (d_last_char (dpi) != '('
4565 && d_last_char (dpi) != '*')
4568 if (need_space && d_last_char (dpi) != ' ')
4569 d_append_char (dpi, ' ');
4570 d_append_char (dpi, '(');
4573 hold_modifiers = dpi->modifiers;
4574 dpi->modifiers = NULL;
4576 d_print_mod_list (dpi, mods, 0);
4579 d_append_char (dpi, ')');
4581 d_append_char (dpi, '(');
4583 if (d_right (dc) != NULL)
4584 d_print_comp (dpi, d_right (dc));
4586 d_append_char (dpi, ')');
4588 d_print_mod_list (dpi, mods, 1);
4590 dpi->modifiers = hold_modifiers;
4593 /* Print an array type, except for the element type. */
4596 d_print_array_type (struct d_print_info *dpi,
4597 const struct demangle_component *dc,
4598 struct d_print_mod *mods)
4606 struct d_print_mod *p;
4609 for (p = mods; p != NULL; p = p->next)
4613 if (p->mod->type == DEMANGLE_COMPONENT_ARRAY_TYPE)
4628 d_append_string (dpi, " (");
4630 d_print_mod_list (dpi, mods, 0);
4633 d_append_char (dpi, ')');
4637 d_append_char (dpi, ' ');
4639 d_append_char (dpi, '[');
4641 if (d_left (dc) != NULL)
4642 d_print_comp (dpi, d_left (dc));
4644 d_append_char (dpi, ']');
4647 /* Print an operator in an expression. */
4650 d_print_expr_op (struct d_print_info *dpi,
4651 const struct demangle_component *dc)
4653 if (dc->type == DEMANGLE_COMPONENT_OPERATOR)
4654 d_append_buffer (dpi, dc->u.s_operator.op->name,
4655 dc->u.s_operator.op->len);
4657 d_print_comp (dpi, dc);
4663 d_print_cast (struct d_print_info *dpi,
4664 const struct demangle_component *dc)
4666 if (d_left (dc)->type != DEMANGLE_COMPONENT_TEMPLATE)
4667 d_print_comp (dpi, d_left (dc));
4670 struct d_print_mod *hold_dpm;
4671 struct d_print_template dpt;
4673 /* It appears that for a templated cast operator, we need to put
4674 the template parameters in scope for the operator name, but
4675 not for the parameters. The effect is that we need to handle
4676 the template printing here. */
4678 hold_dpm = dpi->modifiers;
4679 dpi->modifiers = NULL;
4681 dpt.next = dpi->templates;
4682 dpi->templates = &dpt;
4683 dpt.template_decl = d_left (dc);
4685 d_print_comp (dpi, d_left (d_left (dc)));
4687 dpi->templates = dpt.next;
4689 if (d_last_char (dpi) == '<')
4690 d_append_char (dpi, ' ');
4691 d_append_char (dpi, '<');
4692 d_print_comp (dpi, d_right (d_left (dc)));
4693 /* Avoid generating two consecutive '>' characters, to avoid
4694 the C++ syntactic ambiguity. */
4695 if (d_last_char (dpi) == '>')
4696 d_append_char (dpi, ' ');
4697 d_append_char (dpi, '>');
4699 dpi->modifiers = hold_dpm;
4703 /* Initialize the information structure we use to pass around
4706 CP_STATIC_IF_GLIBCPP_V3
4708 cplus_demangle_init_info (const char *mangled, int options, size_t len,
4712 di->send = mangled + len;
4713 di->options = options;
4717 /* We can not need more components than twice the number of chars in
4718 the mangled string. Most components correspond directly to
4719 chars, but the ARGLIST types are exceptions. */
4720 di->num_comps = 2 * len;
4723 /* Similarly, we can not need more substitutions than there are
4724 chars in the mangled string. */
4729 di->last_name = NULL;
4734 /* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI
4735 mangled name, return strings in repeated callback giving the demangled
4736 name. OPTIONS is the usual libiberty demangler options. On success,
4737 this returns 1. On failure, returns 0. */
4740 d_demangle_callback (const char *mangled, int options,
4741 demangle_callbackref callback, void *opaque)
4752 struct demangle_component *dc;
4755 if (mangled[0] == '_' && mangled[1] == 'Z')
4757 else if (strncmp (mangled, "_GLOBAL_", 8) == 0
4758 && (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$')
4759 && (mangled[9] == 'D' || mangled[9] == 'I')
4760 && mangled[10] == '_')
4761 type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS;
4764 if ((options & DMGL_TYPES) == 0)
4769 cplus_demangle_init_info (mangled, options, strlen (mangled), &di);
4772 #ifdef CP_DYNAMIC_ARRAYS
4773 __extension__ struct demangle_component comps[di.num_comps];
4774 __extension__ struct demangle_component *subs[di.num_subs];
4779 di.comps = alloca (di.num_comps * sizeof (*di.comps));
4780 di.subs = alloca (di.num_subs * sizeof (*di.subs));
4786 dc = cplus_demangle_type (&di);
4789 dc = cplus_demangle_mangled_name (&di, 1);
4791 case DCT_GLOBAL_CTORS:
4792 case DCT_GLOBAL_DTORS:
4793 d_advance (&di, 11);
4794 dc = d_make_comp (&di,
4795 (type == DCT_GLOBAL_CTORS
4796 ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS
4797 : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS),
4798 d_make_name (&di, d_str (&di), strlen (d_str (&di))),
4800 d_advance (&di, strlen (d_str (&di)));
4804 /* If DMGL_PARAMS is set, then if we didn't consume the entire
4805 mangled string, then we didn't successfully demangle it. If
4806 DMGL_PARAMS is not set, we didn't look at the trailing
4808 if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0')
4811 #ifdef CP_DEMANGLE_DEBUG
4815 status = (dc != NULL)
4816 ? cplus_demangle_print_callback (options, dc, callback, opaque)
4823 /* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled
4824 name, return a buffer allocated with malloc holding the demangled
4825 name. OPTIONS is the usual libiberty demangler options. On
4826 success, this sets *PALC to the allocated size of the returned
4827 buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for
4828 a memory allocation failure, and returns NULL. */
4831 d_demangle (const char *mangled, int options, size_t *palc)
4833 struct d_growable_string dgs;
4836 d_growable_string_init (&dgs, 0);
4838 status = d_demangle_callback (mangled, options,
4839 d_growable_string_callback_adapter, &dgs);
4847 *palc = dgs.allocation_failure ? 1 : dgs.alc;
4851 #if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
4853 extern char *__cxa_demangle (const char *, char *, size_t *, int *);
4855 /* ia64 ABI-mandated entry point in the C++ runtime library for
4856 performing demangling. MANGLED_NAME is a NUL-terminated character
4857 string containing the name to be demangled.
4859 OUTPUT_BUFFER is a region of memory, allocated with malloc, of
4860 *LENGTH bytes, into which the demangled name is stored. If
4861 OUTPUT_BUFFER is not long enough, it is expanded using realloc.
4862 OUTPUT_BUFFER may instead be NULL; in that case, the demangled name
4863 is placed in a region of memory allocated with malloc.
4865 If LENGTH is non-NULL, the length of the buffer containing the
4866 demangled name, is placed in *LENGTH.
4868 The return value is a pointer to the start of the NUL-terminated
4869 demangled name, or NULL if the demangling fails. The caller is
4870 responsible for deallocating this memory using free.
4872 *STATUS is set to one of the following values:
4873 0: The demangling operation succeeded.
4874 -1: A memory allocation failure occurred.
4875 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
4876 -3: One of the arguments is invalid.
4878 The demangling is performed using the C++ ABI mangling rules, with
4882 __cxa_demangle (const char *mangled_name, char *output_buffer,
4883 size_t *length, int *status)
4888 if (mangled_name == NULL)
4895 if (output_buffer != NULL && length == NULL)
4902 demangled = d_demangle (mangled_name, DMGL_PARAMS | DMGL_TYPES, &alc);
4904 if (demangled == NULL)
4916 if (output_buffer == NULL)
4923 if (strlen (demangled) < *length)
4925 strcpy (output_buffer, demangled);
4927 demangled = output_buffer;
4931 free (output_buffer);
4942 extern int __gcclibcxx_demangle_callback (const char *,
4944 (const char *, size_t, void *),
4947 /* Alternative, allocationless entry point in the C++ runtime library
4948 for performing demangling. MANGLED_NAME is a NUL-terminated character
4949 string containing the name to be demangled.
4951 CALLBACK is a callback function, called with demangled string
4952 segments as demangling progresses; it is called at least once,
4953 but may be called more than once. OPAQUE is a generalized pointer
4954 used as a callback argument.
4956 The return code is one of the following values, equivalent to
4957 the STATUS values of __cxa_demangle() (excluding -1, since this
4958 function performs no memory allocations):
4959 0: The demangling operation succeeded.
4960 -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
4961 -3: One of the arguments is invalid.
4963 The demangling is performed using the C++ ABI mangling rules, with
4967 __gcclibcxx_demangle_callback (const char *mangled_name,
4968 void (*callback) (const char *, size_t, void *),
4973 if (mangled_name == NULL || callback == NULL)
4976 status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES,
4984 #else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */
4986 /* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI
4987 mangled name, return a buffer allocated with malloc holding the
4988 demangled name. Otherwise, return NULL. */
4991 cplus_demangle_v3 (const char *mangled, int options)
4995 return d_demangle (mangled, options, &alc);
4999 cplus_demangle_v3_callback (const char *mangled, int options,
5000 demangle_callbackref callback, void *opaque)
5002 return d_demangle_callback (mangled, options, callback, opaque);
5005 /* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling
5006 conventions, but the output formatting is a little different.
5007 This instructs the C++ demangler not to emit pointer characters ("*"), to
5008 use Java's namespace separator symbol ("." instead of "::"), and to output
5009 JArray<TYPE> as TYPE[]. */
5012 java_demangle_v3 (const char *mangled)
5016 return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, &alc);
5020 java_demangle_v3_callback (const char *mangled,
5021 demangle_callbackref callback, void *opaque)
5023 return d_demangle_callback (mangled,
5024 DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX,
5028 #endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */
5030 #ifndef IN_GLIBCPP_V3
5032 /* Demangle a string in order to find out whether it is a constructor
5033 or destructor. Return non-zero on success. Set *CTOR_KIND and
5034 *DTOR_KIND appropriately. */
5037 is_ctor_or_dtor (const char *mangled,
5038 enum gnu_v3_ctor_kinds *ctor_kind,
5039 enum gnu_v3_dtor_kinds *dtor_kind)
5042 struct demangle_component *dc;
5045 *ctor_kind = (enum gnu_v3_ctor_kinds) 0;
5046 *dtor_kind = (enum gnu_v3_dtor_kinds) 0;
5048 cplus_demangle_init_info (mangled, DMGL_GNU_V3, strlen (mangled), &di);
5051 #ifdef CP_DYNAMIC_ARRAYS
5052 __extension__ struct demangle_component comps[di.num_comps];
5053 __extension__ struct demangle_component *subs[di.num_subs];
5058 di.comps = alloca (di.num_comps * sizeof (*di.comps));
5059 di.subs = alloca (di.num_subs * sizeof (*di.subs));
5062 dc = cplus_demangle_mangled_name (&di, 1);
5064 /* Note that because we did not pass DMGL_PARAMS, we don't expect
5065 to demangle the entire string. */
5075 case DEMANGLE_COMPONENT_TYPED_NAME:
5076 case DEMANGLE_COMPONENT_TEMPLATE:
5077 case DEMANGLE_COMPONENT_RESTRICT_THIS:
5078 case DEMANGLE_COMPONENT_VOLATILE_THIS:
5079 case DEMANGLE_COMPONENT_CONST_THIS:
5082 case DEMANGLE_COMPONENT_QUAL_NAME:
5083 case DEMANGLE_COMPONENT_LOCAL_NAME:
5086 case DEMANGLE_COMPONENT_CTOR:
5087 *ctor_kind = dc->u.s_ctor.kind;
5091 case DEMANGLE_COMPONENT_DTOR:
5092 *dtor_kind = dc->u.s_dtor.kind;
5103 /* Return whether NAME is the mangled form of a g++ V3 ABI constructor
5104 name. A non-zero return indicates the type of constructor. */
5106 enum gnu_v3_ctor_kinds
5107 is_gnu_v3_mangled_ctor (const char *name)
5109 enum gnu_v3_ctor_kinds ctor_kind;
5110 enum gnu_v3_dtor_kinds dtor_kind;
5112 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
5113 return (enum gnu_v3_ctor_kinds) 0;
5118 /* Return whether NAME is the mangled form of a g++ V3 ABI destructor
5119 name. A non-zero return indicates the type of destructor. */
5121 enum gnu_v3_dtor_kinds
5122 is_gnu_v3_mangled_dtor (const char *name)
5124 enum gnu_v3_ctor_kinds ctor_kind;
5125 enum gnu_v3_dtor_kinds dtor_kind;
5127 if (! is_ctor_or_dtor (name, &ctor_kind, &dtor_kind))
5128 return (enum gnu_v3_dtor_kinds) 0;
5132 #endif /* IN_GLIBCPP_V3 */
5134 #ifdef STANDALONE_DEMANGLER
5137 #include "dyn-string.h"
5139 static void print_usage (FILE* fp, int exit_value);
5141 #define IS_ALPHA(CHAR) \
5142 (((CHAR) >= 'a' && (CHAR) <= 'z') \
5143 || ((CHAR) >= 'A' && (CHAR) <= 'Z'))
5145 /* Non-zero if CHAR is a character than can occur in a mangled name. */
5146 #define is_mangled_char(CHAR) \
5147 (IS_ALPHA (CHAR) || IS_DIGIT (CHAR) \
5148 || (CHAR) == '_' || (CHAR) == '.' || (CHAR) == '$')
5150 /* The name of this program, as invoked. */
5151 const char* program_name;
5153 /* Prints usage summary to FP and then exits with EXIT_VALUE. */
5156 print_usage (FILE* fp, int exit_value)
5158 fprintf (fp, "Usage: %s [options] [names ...]\n", program_name);
5159 fprintf (fp, "Options:\n");
5160 fprintf (fp, " -h,--help Display this message.\n");
5161 fprintf (fp, " -p,--no-params Don't display function parameters\n");
5162 fprintf (fp, " -v,--verbose Produce verbose demanglings.\n");
5163 fprintf (fp, "If names are provided, they are demangled. Otherwise filters standard input.\n");
5168 /* Option specification for getopt_long. */
5169 static const struct option long_options[] =
5171 { "help", no_argument, NULL, 'h' },
5172 { "no-params", no_argument, NULL, 'p' },
5173 { "verbose", no_argument, NULL, 'v' },
5174 { NULL, no_argument, NULL, 0 },
5177 /* Main entry for a demangling filter executable. It will demangle
5178 its command line arguments, if any. If none are provided, it will
5179 filter stdin to stdout, replacing any recognized mangled C++ names
5180 with their demangled equivalents. */
5183 main (int argc, char *argv[])
5187 int options = DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES;
5189 /* Use the program name of this program, as invoked. */
5190 program_name = argv[0];
5192 /* Parse options. */
5195 opt_char = getopt_long (argc, argv, "hpv", long_options, NULL);
5198 case '?': /* Unrecognized option. */
5199 print_usage (stderr, 1);
5203 print_usage (stdout, 0);
5207 options &= ~ DMGL_PARAMS;
5211 options |= DMGL_VERBOSE;
5215 while (opt_char != -1);
5218 /* No command line arguments were provided. Filter stdin. */
5220 dyn_string_t mangled = dyn_string_new (3);
5223 /* Read all of input. */
5224 while (!feof (stdin))
5228 /* Pile characters into mangled until we hit one that can't
5229 occur in a mangled name. */
5231 while (!feof (stdin) && is_mangled_char (c))
5233 dyn_string_append_char (mangled, c);
5239 if (dyn_string_length (mangled) > 0)
5241 #ifdef IN_GLIBCPP_V3
5242 s = __cxa_demangle (dyn_string_buf (mangled), NULL, NULL, NULL);
5244 s = cplus_demangle_v3 (dyn_string_buf (mangled), options);
5254 /* It might not have been a mangled name. Print the
5256 fputs (dyn_string_buf (mangled), stdout);
5259 dyn_string_clear (mangled);
5262 /* If we haven't hit EOF yet, we've read one character that
5263 can't occur in a mangled name, so print it out. */
5268 dyn_string_delete (mangled);
5271 /* Demangle command line arguments. */
5273 /* Loop over command line arguments. */
5274 for (i = optind; i < argc; ++i)
5277 #ifdef IN_GLIBCPP_V3
5281 /* Attempt to demangle. */
5282 #ifdef IN_GLIBCPP_V3
5283 s = __cxa_demangle (argv[i], NULL, NULL, &status);
5285 s = cplus_demangle_v3 (argv[i], options);
5288 /* If it worked, print the demangled name. */
5296 #ifdef IN_GLIBCPP_V3
5297 fprintf (stderr, "Failed: %s (status %d)\n", argv[i], status);
5299 fprintf (stderr, "Failed: %s\n", argv[i]);
5308 #endif /* STANDALONE_DEMANGLER */