1 /* Defs for interface to demanglers.
2 Copyright (C) 1992-2018 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License
6 as published by the Free Software Foundation; either version 2, or
7 (at your option) any later version.
9 In addition to the permissions in the GNU Library General Public
10 License, the Free Software Foundation gives you unlimited
11 permission to link the compiled version of this file into
12 combinations with other programs, and to distribute those
13 combinations without any restriction coming from the use of this
14 file. (The Library Public License restrictions do apply in other
15 respects; for example, they cover modification of the file, and
16 distribution when not linked into a combined executable.)
18 This program is distributed in the hope that it will be useful, but
19 WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 Library General Public License for more details.
23 You should have received a copy of the GNU Library General Public
24 License along with this program; if not, write to the Free Software
25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
29 #if !defined (DEMANGLE_H)
32 #include "libiberty.h"
36 #endif /* __cplusplus */
38 /* Options passed to cplus_demangle (in 2nd parameter). */
40 #define DMGL_NO_OPTS 0 /* For readability... */
41 #define DMGL_PARAMS (1 << 0) /* Include function args */
42 #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
43 #define DMGL_JAVA (1 << 2) /* Demangle as Java rather than C++. */
44 #define DMGL_VERBOSE (1 << 3) /* Include implementation details. */
45 #define DMGL_TYPES (1 << 4) /* Also try to demangle type encodings. */
46 #define DMGL_RET_POSTFIX (1 << 5) /* Print function return types (when
47 present) after function signature.
48 It applies only to the toplevel
50 #define DMGL_RET_DROP (1 << 6) /* Suppress printing function return
51 types, even if present. It applies
52 only to the toplevel function type.
55 #define DMGL_AUTO (1 << 8)
56 #define DMGL_GNU (1 << 9)
57 #define DMGL_LUCID (1 << 10)
58 #define DMGL_ARM (1 << 11)
59 #define DMGL_HP (1 << 12) /* For the HP aCC compiler;
60 same as ARM except for
61 template arguments, etc. */
62 #define DMGL_EDG (1 << 13)
63 #define DMGL_GNU_V3 (1 << 14)
64 #define DMGL_GNAT (1 << 15)
65 #define DMGL_DLANG (1 << 16)
66 #define DMGL_RUST (1 << 17) /* Rust wraps GNU_V3 style mangling. */
68 /* If none of these are set, use 'current_demangling_style' as the default. */
69 #define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU|DMGL_LUCID|DMGL_ARM|DMGL_HP|DMGL_EDG|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT|DMGL_DLANG|DMGL_RUST)
71 /* Enumeration of possible demangling styles.
73 Lucid and ARM styles are still kept logically distinct, even though
74 they now both behave identically. The resulting style is actual the
75 union of both. I.E. either style recognizes both "__pt__" and "__rf__"
76 for operator "->", even though the first is lucid style and the second
77 is ARM style. (FIXME?) */
79 extern enum demangling_styles
82 unknown_demangling = 0,
83 auto_demangling = DMGL_AUTO,
84 gnu_demangling = DMGL_GNU,
85 lucid_demangling = DMGL_LUCID,
86 arm_demangling = DMGL_ARM,
87 hp_demangling = DMGL_HP,
88 edg_demangling = DMGL_EDG,
89 gnu_v3_demangling = DMGL_GNU_V3,
90 java_demangling = DMGL_JAVA,
91 gnat_demangling = DMGL_GNAT,
92 dlang_demangling = DMGL_DLANG,
93 rust_demangling = DMGL_RUST
94 } current_demangling_style;
96 /* Define string names for the various demangling styles. */
98 #define NO_DEMANGLING_STYLE_STRING "none"
99 #define AUTO_DEMANGLING_STYLE_STRING "auto"
100 #define GNU_DEMANGLING_STYLE_STRING "gnu"
101 #define LUCID_DEMANGLING_STYLE_STRING "lucid"
102 #define ARM_DEMANGLING_STYLE_STRING "arm"
103 #define HP_DEMANGLING_STYLE_STRING "hp"
104 #define EDG_DEMANGLING_STYLE_STRING "edg"
105 #define GNU_V3_DEMANGLING_STYLE_STRING "gnu-v3"
106 #define JAVA_DEMANGLING_STYLE_STRING "java"
107 #define GNAT_DEMANGLING_STYLE_STRING "gnat"
108 #define DLANG_DEMANGLING_STYLE_STRING "dlang"
109 #define RUST_DEMANGLING_STYLE_STRING "rust"
111 /* Some macros to test what demangling style is active. */
113 #define CURRENT_DEMANGLING_STYLE current_demangling_style
114 #define AUTO_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_AUTO)
115 #define GNU_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU)
116 #define LUCID_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_LUCID)
117 #define ARM_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_ARM)
118 #define HP_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_HP)
119 #define EDG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_EDG)
120 #define GNU_V3_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU_V3)
121 #define JAVA_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_JAVA)
122 #define GNAT_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNAT)
123 #define DLANG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_DLANG)
124 #define RUST_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_RUST)
126 /* Provide information about the available demangle styles. This code is
127 pulled from gdb into libiberty because it is useful to binutils also. */
129 extern const struct demangler_engine
131 const char *const demangling_style_name;
132 const enum demangling_styles demangling_style;
133 const char *const demangling_style_doc;
134 } libiberty_demanglers[];
137 cplus_demangle (const char *mangled, int options);
140 cplus_demangle_opname (const char *opname, char *result, int options);
143 cplus_mangle_opname (const char *opname, int options);
145 /* Note: This sets global state. FIXME if you care about multi-threading. */
148 set_cplus_marker_for_demangling (int ch);
150 extern enum demangling_styles
151 cplus_demangle_set_style (enum demangling_styles style);
153 extern enum demangling_styles
154 cplus_demangle_name_to_style (const char *name);
156 /* Callback typedef for allocation-less demangler interfaces. */
157 typedef void (*demangle_callbackref) (const char *, size_t, void *);
159 /* V3 ABI demangling entry points, defined in cp-demangle.c. Callback
160 variants return non-zero on success, zero on error. char* variants
161 return a string allocated by malloc on success, NULL on error. */
163 cplus_demangle_v3_callback (const char *mangled, int options,
164 demangle_callbackref callback, void *opaque);
167 cplus_demangle_v3 (const char *mangled, int options);
170 java_demangle_v3_callback (const char *mangled,
171 demangle_callbackref callback, void *opaque);
174 java_demangle_v3 (const char *mangled);
177 ada_demangle (const char *mangled, int options);
180 dlang_demangle (const char *mangled, int options);
182 /* Returns non-zero iff MANGLED is a rust mangled symbol. MANGLED must
183 already have been demangled through cplus_demangle_v3. If this function
184 returns non-zero then MANGLED can be demangled (in-place) using
185 RUST_DEMANGLE_SYM. */
187 rust_is_mangled (const char *mangled);
189 /* Demangles SYM (in-place) if RUST_IS_MANGLED returned non-zero for SYM.
190 If RUST_IS_MANGLED returned zero for SYM then RUST_DEMANGLE_SYM might
191 replace characters that cannot be demangled with '?' and might truncate
192 SYM. After calling RUST_DEMANGLE_SYM SYM might be shorter, but never
195 rust_demangle_sym (char *sym);
197 /* Demangles MANGLED if it was GNU_V3 and then RUST mangled, otherwise
198 returns NULL. Uses CPLUS_DEMANGLE_V3, RUST_IS_MANGLED and
199 RUST_DEMANGLE_SYM. Returns a new string that is owned by the caller. */
201 rust_demangle (const char *mangled, int options);
203 enum gnu_v3_ctor_kinds {
204 gnu_v3_complete_object_ctor = 1,
205 gnu_v3_base_object_ctor,
206 gnu_v3_complete_object_allocating_ctor,
207 /* These are not part of the V3 ABI. Unified constructors are generated
208 as a speed-for-space optimization when the -fdeclone-ctor-dtor option
209 is used, and are always internal symbols. */
211 gnu_v3_object_ctor_group
214 /* Return non-zero iff NAME is the mangled form of a constructor name
215 in the G++ V3 ABI demangling style. Specifically, return an `enum
216 gnu_v3_ctor_kinds' value indicating what kind of constructor
218 extern enum gnu_v3_ctor_kinds
219 is_gnu_v3_mangled_ctor (const char *name);
222 enum gnu_v3_dtor_kinds {
223 gnu_v3_deleting_dtor = 1,
224 gnu_v3_complete_object_dtor,
225 gnu_v3_base_object_dtor,
226 /* These are not part of the V3 ABI. Unified destructors are generated
227 as a speed-for-space optimization when the -fdeclone-ctor-dtor option
228 is used, and are always internal symbols. */
230 gnu_v3_object_dtor_group
233 /* Return non-zero iff NAME is the mangled form of a destructor name
234 in the G++ V3 ABI demangling style. Specifically, return an `enum
235 gnu_v3_dtor_kinds' value, indicating what kind of destructor
237 extern enum gnu_v3_dtor_kinds
238 is_gnu_v3_mangled_dtor (const char *name);
240 /* The V3 demangler works in two passes. The first pass builds a tree
241 representation of the mangled name, and the second pass turns the
242 tree representation into a demangled string. Here we define an
243 interface to permit a caller to build their own tree
244 representation, which they can pass to the demangler to get a
245 demangled string. This can be used to canonicalize user input into
246 something which the demangler might output. It could also be used
247 by other demanglers in the future. */
249 /* These are the component types which may be found in the tree. Many
250 component types have one or two subtrees, referred to as left and
251 right (a component type with only one subtree puts it in the left
254 enum demangle_component_type
256 /* A name, with a length and a pointer to a string. */
257 DEMANGLE_COMPONENT_NAME,
258 /* A qualified name. The left subtree is a class or namespace or
259 some such thing, and the right subtree is a name qualified by
261 DEMANGLE_COMPONENT_QUAL_NAME,
262 /* A local name. The left subtree describes a function, and the
263 right subtree is a name which is local to that function. */
264 DEMANGLE_COMPONENT_LOCAL_NAME,
265 /* A typed name. The left subtree is a name, and the right subtree
266 describes that name as a function. */
267 DEMANGLE_COMPONENT_TYPED_NAME,
268 /* A template. The left subtree is a template name, and the right
269 subtree is a template argument list. */
270 DEMANGLE_COMPONENT_TEMPLATE,
271 /* A template parameter. This holds a number, which is the template
273 DEMANGLE_COMPONENT_TEMPLATE_PARAM,
274 /* A function parameter. This holds a number, which is the index. */
275 DEMANGLE_COMPONENT_FUNCTION_PARAM,
276 /* A constructor. This holds a name and the kind of
278 DEMANGLE_COMPONENT_CTOR,
279 /* A destructor. This holds a name and the kind of destructor. */
280 DEMANGLE_COMPONENT_DTOR,
281 /* A vtable. This has one subtree, the type for which this is a
283 DEMANGLE_COMPONENT_VTABLE,
284 /* A VTT structure. This has one subtree, the type for which this
286 DEMANGLE_COMPONENT_VTT,
287 /* A construction vtable. The left subtree is the type for which
288 this is a vtable, and the right subtree is the derived type for
289 which this vtable is built. */
290 DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
291 /* A typeinfo structure. This has one subtree, the type for which
292 this is the tpeinfo structure. */
293 DEMANGLE_COMPONENT_TYPEINFO,
294 /* A typeinfo name. This has one subtree, the type for which this
295 is the typeinfo name. */
296 DEMANGLE_COMPONENT_TYPEINFO_NAME,
297 /* A typeinfo function. This has one subtree, the type for which
298 this is the tpyeinfo function. */
299 DEMANGLE_COMPONENT_TYPEINFO_FN,
300 /* A thunk. This has one subtree, the name for which this is a
302 DEMANGLE_COMPONENT_THUNK,
303 /* A virtual thunk. This has one subtree, the name for which this
304 is a virtual thunk. */
305 DEMANGLE_COMPONENT_VIRTUAL_THUNK,
306 /* A covariant thunk. This has one subtree, the name for which this
307 is a covariant thunk. */
308 DEMANGLE_COMPONENT_COVARIANT_THUNK,
309 /* A Java class. This has one subtree, the type. */
310 DEMANGLE_COMPONENT_JAVA_CLASS,
311 /* A guard variable. This has one subtree, the name for which this
312 is a guard variable. */
313 DEMANGLE_COMPONENT_GUARD,
314 /* The init and wrapper functions for C++11 thread_local variables. */
315 DEMANGLE_COMPONENT_TLS_INIT,
316 DEMANGLE_COMPONENT_TLS_WRAPPER,
317 /* A reference temporary. This has one subtree, the name for which
318 this is a temporary. */
319 DEMANGLE_COMPONENT_REFTEMP,
320 /* A hidden alias. This has one subtree, the encoding for which it
321 is providing alternative linkage. */
322 DEMANGLE_COMPONENT_HIDDEN_ALIAS,
323 /* A standard substitution. This holds the name of the
325 DEMANGLE_COMPONENT_SUB_STD,
326 /* The restrict qualifier. The one subtree is the type which is
328 DEMANGLE_COMPONENT_RESTRICT,
329 /* The volatile qualifier. The one subtree is the type which is
331 DEMANGLE_COMPONENT_VOLATILE,
332 /* The const qualifier. The one subtree is the type which is being
334 DEMANGLE_COMPONENT_CONST,
335 /* The restrict qualifier modifying a member function. The one
336 subtree is the type which is being qualified. */
337 DEMANGLE_COMPONENT_RESTRICT_THIS,
338 /* The volatile qualifier modifying a member function. The one
339 subtree is the type which is being qualified. */
340 DEMANGLE_COMPONENT_VOLATILE_THIS,
341 /* The const qualifier modifying a member function. The one subtree
342 is the type which is being qualified. */
343 DEMANGLE_COMPONENT_CONST_THIS,
344 /* C++11 A reference modifying a member function. The one subtree is the
345 type which is being referenced. */
346 DEMANGLE_COMPONENT_REFERENCE_THIS,
347 /* C++11: An rvalue reference modifying a member function. The one
348 subtree is the type which is being referenced. */
349 DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS,
350 /* A vendor qualifier. The left subtree is the type which is being
351 qualified, and the right subtree is the name of the
353 DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
354 /* A pointer. The one subtree is the type which is being pointed
356 DEMANGLE_COMPONENT_POINTER,
357 /* A reference. The one subtree is the type which is being
359 DEMANGLE_COMPONENT_REFERENCE,
360 /* C++0x: An rvalue reference. The one subtree is the type which is
362 DEMANGLE_COMPONENT_RVALUE_REFERENCE,
363 /* A complex type. The one subtree is the base type. */
364 DEMANGLE_COMPONENT_COMPLEX,
365 /* An imaginary type. The one subtree is the base type. */
366 DEMANGLE_COMPONENT_IMAGINARY,
367 /* A builtin type. This holds the builtin type information. */
368 DEMANGLE_COMPONENT_BUILTIN_TYPE,
369 /* A vendor's builtin type. This holds the name of the type. */
370 DEMANGLE_COMPONENT_VENDOR_TYPE,
371 /* A function type. The left subtree is the return type. The right
372 subtree is a list of ARGLIST nodes. Either or both may be
374 DEMANGLE_COMPONENT_FUNCTION_TYPE,
375 /* An array type. The left subtree is the dimension, which may be
376 NULL, or a string (represented as DEMANGLE_COMPONENT_NAME), or an
377 expression. The right subtree is the element type. */
378 DEMANGLE_COMPONENT_ARRAY_TYPE,
379 /* A pointer to member type. The left subtree is the class type,
380 and the right subtree is the member type. CV-qualifiers appear
382 DEMANGLE_COMPONENT_PTRMEM_TYPE,
383 /* A fixed-point type. */
384 DEMANGLE_COMPONENT_FIXED_TYPE,
385 /* A vector type. The left subtree is the number of elements,
386 the right subtree is the element type. */
387 DEMANGLE_COMPONENT_VECTOR_TYPE,
388 /* An argument list. The left subtree is the current argument, and
389 the right subtree is either NULL or another ARGLIST node. */
390 DEMANGLE_COMPONENT_ARGLIST,
391 /* A template argument list. The left subtree is the current
392 template argument, and the right subtree is either NULL or
393 another TEMPLATE_ARGLIST node. */
394 DEMANGLE_COMPONENT_TEMPLATE_ARGLIST,
395 /* An initializer list. The left subtree is either an explicit type or
396 NULL, and the right subtree is a DEMANGLE_COMPONENT_ARGLIST. */
397 DEMANGLE_COMPONENT_INITIALIZER_LIST,
398 /* An operator. This holds information about a standard
400 DEMANGLE_COMPONENT_OPERATOR,
401 /* An extended operator. This holds the number of arguments, and
402 the name of the extended operator. */
403 DEMANGLE_COMPONENT_EXTENDED_OPERATOR,
404 /* A typecast, represented as a unary operator. The one subtree is
405 the type to which the argument should be cast. */
406 DEMANGLE_COMPONENT_CAST,
407 /* A conversion operator, represented as a unary operator. The one
408 subtree is the type to which the argument should be converted
410 DEMANGLE_COMPONENT_CONVERSION,
411 /* A nullary expression. The left subtree is the operator. */
412 DEMANGLE_COMPONENT_NULLARY,
413 /* A unary expression. The left subtree is the operator, and the
414 right subtree is the single argument. */
415 DEMANGLE_COMPONENT_UNARY,
416 /* A binary expression. The left subtree is the operator, and the
417 right subtree is a BINARY_ARGS. */
418 DEMANGLE_COMPONENT_BINARY,
419 /* Arguments to a binary expression. The left subtree is the first
420 argument, and the right subtree is the second argument. */
421 DEMANGLE_COMPONENT_BINARY_ARGS,
422 /* A trinary expression. The left subtree is the operator, and the
423 right subtree is a TRINARY_ARG1. */
424 DEMANGLE_COMPONENT_TRINARY,
425 /* Arguments to a trinary expression. The left subtree is the first
426 argument, and the right subtree is a TRINARY_ARG2. */
427 DEMANGLE_COMPONENT_TRINARY_ARG1,
428 /* More arguments to a trinary expression. The left subtree is the
429 second argument, and the right subtree is the third argument. */
430 DEMANGLE_COMPONENT_TRINARY_ARG2,
431 /* A literal. The left subtree is the type, and the right subtree
432 is the value, represented as a DEMANGLE_COMPONENT_NAME. */
433 DEMANGLE_COMPONENT_LITERAL,
434 /* A negative literal. Like LITERAL, but the value is negated.
435 This is a minor hack: the NAME used for LITERAL points directly
436 to the mangled string, but since negative numbers are mangled
437 using 'n' instead of '-', we want a way to indicate a negative
438 number which involves neither modifying the mangled string nor
439 allocating a new copy of the literal in memory. */
440 DEMANGLE_COMPONENT_LITERAL_NEG,
441 /* A libgcj compiled resource. The left subtree is the name of the
443 DEMANGLE_COMPONENT_JAVA_RESOURCE,
444 /* A name formed by the concatenation of two parts. The left
445 subtree is the first part and the right subtree the second. */
446 DEMANGLE_COMPONENT_COMPOUND_NAME,
447 /* A name formed by a single character. */
448 DEMANGLE_COMPONENT_CHARACTER,
450 DEMANGLE_COMPONENT_NUMBER,
451 /* A decltype type. */
452 DEMANGLE_COMPONENT_DECLTYPE,
453 /* Global constructors keyed to name. */
454 DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS,
455 /* Global destructors keyed to name. */
456 DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS,
457 /* A lambda closure type. */
458 DEMANGLE_COMPONENT_LAMBDA,
459 /* A default argument scope. */
460 DEMANGLE_COMPONENT_DEFAULT_ARG,
461 /* An unnamed type. */
462 DEMANGLE_COMPONENT_UNNAMED_TYPE,
463 /* A transactional clone. This has one subtree, the encoding for
464 which it is providing alternative linkage. */
465 DEMANGLE_COMPONENT_TRANSACTION_CLONE,
466 /* A non-transactional clone entry point. In the i386/x86_64 abi,
467 the unmangled symbol of a tm_callable becomes a thunk and the
468 non-transactional function version is mangled thus. */
469 DEMANGLE_COMPONENT_NONTRANSACTION_CLONE,
470 /* A pack expansion. */
471 DEMANGLE_COMPONENT_PACK_EXPANSION,
472 /* A name with an ABI tag. */
473 DEMANGLE_COMPONENT_TAGGED_NAME,
474 /* A transaction-safe function type. */
475 DEMANGLE_COMPONENT_TRANSACTION_SAFE,
476 /* A cloned function. */
477 DEMANGLE_COMPONENT_CLONE,
478 DEMANGLE_COMPONENT_NOEXCEPT,
479 DEMANGLE_COMPONENT_THROW_SPEC
482 /* Types which are only used internally. */
484 struct demangle_operator_info;
485 struct demangle_builtin_type_info;
487 /* A node in the tree representation is an instance of a struct
488 demangle_component. Note that the field names of the struct are
489 not well protected against macros defined by the file including
490 this one. We can fix this if it ever becomes a problem. */
492 struct demangle_component
494 /* The type of this component. */
495 enum demangle_component_type type;
497 /* Guard against recursive component printing.
498 Initialize to zero. Private to d_print_comp.
499 All other fields are final after initialization. */
504 /* For DEMANGLE_COMPONENT_NAME. */
507 /* A pointer to the name (which need not NULL terminated) and
513 /* For DEMANGLE_COMPONENT_OPERATOR. */
517 const struct demangle_operator_info *op;
520 /* For DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */
523 /* Number of arguments. */
526 struct demangle_component *name;
527 } s_extended_operator;
529 /* For DEMANGLE_COMPONENT_FIXED_TYPE. */
532 /* The length, indicated by a C integer type name. */
533 struct demangle_component *length;
534 /* _Accum or _Fract? */
536 /* Saturating or not? */
540 /* For DEMANGLE_COMPONENT_CTOR. */
543 /* Kind of constructor. */
544 enum gnu_v3_ctor_kinds kind;
546 struct demangle_component *name;
549 /* For DEMANGLE_COMPONENT_DTOR. */
552 /* Kind of destructor. */
553 enum gnu_v3_dtor_kinds kind;
555 struct demangle_component *name;
558 /* For DEMANGLE_COMPONENT_BUILTIN_TYPE. */
562 const struct demangle_builtin_type_info *type;
565 /* For DEMANGLE_COMPONENT_SUB_STD. */
568 /* Standard substitution string. */
570 /* Length of string. */
574 /* For DEMANGLE_COMPONENT_*_PARAM. */
577 /* Parameter index. */
581 /* For DEMANGLE_COMPONENT_CHARACTER. */
587 /* For other types. */
590 /* Left (or only) subtree. */
591 struct demangle_component *left;
593 struct demangle_component *right;
598 /* subtree, same place as d_left. */
599 struct demangle_component *sub;
607 /* People building mangled trees are expected to allocate instances of
608 struct demangle_component themselves. They can then call one of
609 the following functions to fill them in. */
611 /* Fill in most component types with a left subtree and a right
612 subtree. Returns non-zero on success, zero on failure, such as an
613 unrecognized or inappropriate component type. */
616 cplus_demangle_fill_component (struct demangle_component *fill,
617 enum demangle_component_type,
618 struct demangle_component *left,
619 struct demangle_component *right);
621 /* Fill in a DEMANGLE_COMPONENT_NAME. Returns non-zero on success,
622 zero for bad arguments. */
625 cplus_demangle_fill_name (struct demangle_component *fill,
628 /* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE, using the name of the
629 builtin type (e.g., "int", etc.). Returns non-zero on success,
630 zero if the type is not recognized. */
633 cplus_demangle_fill_builtin_type (struct demangle_component *fill,
634 const char *type_name);
636 /* Fill in a DEMANGLE_COMPONENT_OPERATOR, using the name of the
637 operator and the number of arguments which it takes (the latter is
638 used to disambiguate operators which can be both binary and unary,
639 such as '-'). Returns non-zero on success, zero if the operator is
643 cplus_demangle_fill_operator (struct demangle_component *fill,
644 const char *opname, int args);
646 /* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR, providing the
647 number of arguments and the name. Returns non-zero on success,
648 zero for bad arguments. */
651 cplus_demangle_fill_extended_operator (struct demangle_component *fill,
653 struct demangle_component *nm);
655 /* Fill in a DEMANGLE_COMPONENT_CTOR. Returns non-zero on success,
656 zero for bad arguments. */
659 cplus_demangle_fill_ctor (struct demangle_component *fill,
660 enum gnu_v3_ctor_kinds kind,
661 struct demangle_component *name);
663 /* Fill in a DEMANGLE_COMPONENT_DTOR. Returns non-zero on success,
664 zero for bad arguments. */
667 cplus_demangle_fill_dtor (struct demangle_component *fill,
668 enum gnu_v3_dtor_kinds kind,
669 struct demangle_component *name);
671 /* This function translates a mangled name into a struct
672 demangle_component tree. The first argument is the mangled name.
673 The second argument is DMGL_* options. This returns a pointer to a
674 tree on success, or NULL on failure. On success, the third
675 argument is set to a block of memory allocated by malloc. This
676 block should be passed to free when the tree is no longer
679 extern struct demangle_component *
680 cplus_demangle_v3_components (const char *mangled, int options, void **mem);
682 /* This function takes a struct demangle_component tree and returns
683 the corresponding demangled string. The first argument is DMGL_*
684 options. The second is the tree to demangle. The third is a guess
685 at the length of the demangled string, used to initially allocate
686 the return buffer. The fourth is a pointer to a size_t. On
687 success, this function returns a buffer allocated by malloc(), and
688 sets the size_t pointed to by the fourth argument to the size of
689 the allocated buffer (not the length of the returned string). On
690 failure, this function returns NULL, and sets the size_t pointed to
691 by the fourth argument to 0 for an invalid tree, or to 1 for a
692 memory allocation error. */
695 cplus_demangle_print (int options,
696 struct demangle_component *tree,
697 int estimated_length,
698 size_t *p_allocated_size);
700 /* This function takes a struct demangle_component tree and passes back
701 a demangled string in one or more calls to a callback function.
702 The first argument is DMGL_* options. The second is the tree to
703 demangle. The third is a pointer to a callback function; on each call
704 this receives an element of the demangled string, its length, and an
705 opaque value. The fourth is the opaque value passed to the callback.
706 The callback is called once or more to return the full demangled
707 string. The demangled element string is always nul-terminated, though
708 its length is also provided for convenience. In contrast to
709 cplus_demangle_print(), this function does not allocate heap memory
710 to grow output strings (except perhaps where alloca() is implemented
711 by malloc()), and so is normally safe for use where the heap has been
712 corrupted. On success, this function returns 1; on failure, 0. */
715 cplus_demangle_print_callback (int options,
716 struct demangle_component *tree,
717 demangle_callbackref callback, void *opaque);
721 #endif /* __cplusplus */
723 #endif /* DEMANGLE_H */