gcc-4_6_3-mobile/include/demangle.h

   1 /* Defs for interface to demanglers.
   2    Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002,
   3    2003, 2004, 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License
   7    as published by the Free Software Foundation; either version 2, or
   8    (at your option) any later version.
   9
  10    In addition to the permissions in the GNU Library General Public
  11    License, the Free Software Foundation gives you unlimited
  12    permission to link the compiled version of this file into
  13    combinations with other programs, and to distribute those
  14    combinations without any restriction coming from the use of this
  15    file.  (The Library Public License restrictions do apply in other
  16    respects; for example, they cover modification of the file, and
  17    distribution when not linked into a combined executable.)
  18
  19    This program is distributed in the hope that it will be useful, but
  20    WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22    Library General Public License for more details.
  23
  24    You should have received a copy of the GNU Library General Public
  25    License along with this program; if not, write to the Free Software
  26    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  27    02110-1301, USA.  */
  28
  29
  30 #if !defined (DEMANGLE_H)
  31 #define DEMANGLE_H
  32
  33 #include "libiberty.h"
  34
  35 #ifdef __cplusplus
  36 extern "C" {
  37 #endif /* __cplusplus */
  38
  39 /* Options passed to cplus_demangle (in 2nd parameter). */
  40
  41 #define DMGL_NO_OPTS     0              /* For readability... */
  42 #define DMGL_PARAMS      (1 << 0)       /* Include function args */
  43 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
  44 #define DMGL_JAVA        (1 << 2)       /* Demangle as Java rather than C++. */
  45 #define DMGL_VERBOSE     (1 << 3)       /* Include implementation details.  */
  46 #define DMGL_TYPES       (1 << 4)       /* Also try to demangle type encodings.  */
  47 #define DMGL_RET_POSTFIX (1 << 5)       /* Print function return types (when
  48                                            present) after function signature */
  49
  50 #define DMGL_AUTO        (1 << 8)
  51 #define DMGL_GNU         (1 << 9)
  52 #define DMGL_LUCID       (1 << 10)
  53 #define DMGL_ARM         (1 << 11)
  54 #define DMGL_HP          (1 << 12)       /* For the HP aCC compiler;
  55                                             same as ARM except for
  56                                             template arguments, etc. */
  57 #define DMGL_EDG         (1 << 13)
  58 #define DMGL_GNU_V3      (1 << 14)
  59 #define DMGL_GNAT        (1 << 15)
  60
  61 /* If none of these are set, use 'current_demangling_style' as the default. */
  62 #define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU|DMGL_LUCID|DMGL_ARM|DMGL_HP|DMGL_EDG|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT)
  63
  64 /* Enumeration of possible demangling styles.
  65
  66    Lucid and ARM styles are still kept logically distinct, even though
  67    they now both behave identically.  The resulting style is actual the
  68    union of both.  I.E. either style recognizes both "__pt__" and "__rf__"
  69    for operator "->", even though the first is lucid style and the second
  70    is ARM style. (FIXME?) */
  71
  72 extern enum demangling_styles
  73 {
  74   no_demangling = -1,
  75   unknown_demangling = 0,
  76   auto_demangling = DMGL_AUTO,
  77   gnu_demangling = DMGL_GNU,
  78   lucid_demangling = DMGL_LUCID,
  79   arm_demangling = DMGL_ARM,
  80   hp_demangling = DMGL_HP,
  81   edg_demangling = DMGL_EDG,
  82   gnu_v3_demangling = DMGL_GNU_V3,
  83   java_demangling = DMGL_JAVA,
  84   gnat_demangling = DMGL_GNAT
  85 } current_demangling_style;
  86
  87 /* Define string names for the various demangling styles. */
  88
  89 #define NO_DEMANGLING_STYLE_STRING            "none"
  90 #define AUTO_DEMANGLING_STYLE_STRING          "auto"
  91 #define GNU_DEMANGLING_STYLE_STRING           "gnu"
  92 #define LUCID_DEMANGLING_STYLE_STRING         "lucid"
  93 #define ARM_DEMANGLING_STYLE_STRING           "arm"
  94 #define HP_DEMANGLING_STYLE_STRING            "hp"
  95 #define EDG_DEMANGLING_STYLE_STRING           "edg"
  96 #define GNU_V3_DEMANGLING_STYLE_STRING        "gnu-v3"
  97 #define JAVA_DEMANGLING_STYLE_STRING          "java"
  98 #define GNAT_DEMANGLING_STYLE_STRING          "gnat"
  99
 100 /* Some macros to test what demangling style is active. */
 101
 102 #define CURRENT_DEMANGLING_STYLE current_demangling_style
 103 #define AUTO_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_AUTO)
 104 #define GNU_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU)
 105 #define LUCID_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_LUCID)
 106 #define ARM_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_ARM)
 107 #define HP_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_HP)
 108 #define EDG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_EDG)
 109 #define GNU_V3_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU_V3)
 110 #define JAVA_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_JAVA)
 111 #define GNAT_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNAT)
 112
 113 /* Provide information about the available demangle styles. This code is
 114    pulled from gdb into libiberty because it is useful to binutils also.  */
 115
 116 extern const struct demangler_engine
 117 {
 118   const char *const demangling_style_name;
 119   const enum demangling_styles demangling_style;
 120   const char *const demangling_style_doc;
 121 } libiberty_demanglers[];
 122
 123 extern char *
 124 cplus_demangle (const char *mangled, int options);
 125
 126 extern int
 127 cplus_demangle_opname (const char *opname, char *result, int options);
 128
 129 extern const char *
 130 cplus_mangle_opname (const char *opname, int options);
 131
 132 /* Note: This sets global state.  FIXME if you care about multi-threading. */
 133
 134 extern void
 135 set_cplus_marker_for_demangling (int ch);
 136
 137 extern enum demangling_styles
 138 cplus_demangle_set_style (enum demangling_styles style);
 139
 140 extern enum demangling_styles
 141 cplus_demangle_name_to_style (const char *name);
 142
 143 /* Callback typedef for allocation-less demangler interfaces. */
 144 typedef void (*demangle_callbackref) (const char *, size_t, void *);
 145
 146 /* V3 ABI demangling entry points, defined in cp-demangle.c.  Callback
 147    variants return non-zero on success, zero on error.  char* variants
 148    return a string allocated by malloc on success, NULL on error.  */
 149 extern int
 150 cplus_demangle_v3_callback (const char *mangled, int options,
 151                             demangle_callbackref callback, void *opaque);
 152
 153 extern char*
 154 cplus_demangle_v3 (const char *mangled, int options);
 155
 156 extern int
 157 java_demangle_v3_callback (const char *mangled,
 158                            demangle_callbackref callback, void *opaque);
 159
 160 extern char*
 161 java_demangle_v3 (const char *mangled);
 162
 163 char *
 164 ada_demangle (const char *mangled, int options);
 165
 166 enum gnu_v3_ctor_kinds {
 167   gnu_v3_complete_object_ctor = 1,
 168   gnu_v3_base_object_ctor,
 169   gnu_v3_complete_object_allocating_ctor
 170 };
 171
 172 /* Return non-zero iff NAME is the mangled form of a constructor name
 173    in the G++ V3 ABI demangling style.  Specifically, return an `enum
 174    gnu_v3_ctor_kinds' value indicating what kind of constructor
 175    it is.  */
 176 extern enum gnu_v3_ctor_kinds
 177         is_gnu_v3_mangled_ctor (const char *name);
 178
 179
 180 enum gnu_v3_dtor_kinds {
 181   gnu_v3_deleting_dtor = 1,
 182   gnu_v3_complete_object_dtor,
 183   gnu_v3_base_object_dtor
 184 };
 185
 186 /* Return non-zero iff NAME is the mangled form of a destructor name
 187    in the G++ V3 ABI demangling style.  Specifically, return an `enum
 188    gnu_v3_dtor_kinds' value, indicating what kind of destructor
 189    it is.  */
 190 extern enum gnu_v3_dtor_kinds
 191         is_gnu_v3_mangled_dtor (const char *name);
 192
 193 /* The V3 demangler works in two passes.  The first pass builds a tree
 194    representation of the mangled name, and the second pass turns the
 195    tree representation into a demangled string.  Here we define an
 196    interface to permit a caller to build their own tree
 197    representation, which they can pass to the demangler to get a
 198    demangled string.  This can be used to canonicalize user input into
 199    something which the demangler might output.  It could also be used
 200    by other demanglers in the future.  */
 201
 202 /* These are the component types which may be found in the tree.  Many
 203    component types have one or two subtrees, referred to as left and
 204    right (a component type with only one subtree puts it in the left
 205    subtree).  */
 206
 207 enum demangle_component_type
 208 {
 209   /* A name, with a length and a pointer to a string.  */
 210   DEMANGLE_COMPONENT_NAME,
 211   /* A qualified name.  The left subtree is a class or namespace or
 212      some such thing, and the right subtree is a name qualified by
 213      that class.  */
 214   DEMANGLE_COMPONENT_QUAL_NAME,
 215   /* A local name.  The left subtree describes a function, and the
 216      right subtree is a name which is local to that function.  */
 217   DEMANGLE_COMPONENT_LOCAL_NAME,
 218   /* A typed name.  The left subtree is a name, and the right subtree
 219      describes that name as a function.  */
 220   DEMANGLE_COMPONENT_TYPED_NAME,
 221   /* A template.  The left subtree is a template name, and the right
 222      subtree is a template argument list.  */
 223   DEMANGLE_COMPONENT_TEMPLATE,
 224   /* A template parameter.  This holds a number, which is the template
 225      parameter index.  */
 226   DEMANGLE_COMPONENT_TEMPLATE_PARAM,
 227   /* A function parameter.  This holds a number, which is the index.  */
 228   DEMANGLE_COMPONENT_FUNCTION_PARAM,
 229   /* A constructor.  This holds a name and the kind of
 230      constructor.  */
 231   DEMANGLE_COMPONENT_CTOR,
 232   /* A destructor.  This holds a name and the kind of destructor.  */
 233   DEMANGLE_COMPONENT_DTOR,
 234   /* A vtable.  This has one subtree, the type for which this is a
 235      vtable.  */
 236   DEMANGLE_COMPONENT_VTABLE,
 237   /* A VTT structure.  This has one subtree, the type for which this
 238      is a VTT.  */
 239   DEMANGLE_COMPONENT_VTT,
 240   /* A construction vtable.  The left subtree is the type for which
 241      this is a vtable, and the right subtree is the derived type for
 242      which this vtable is built.  */
 243   DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE,
 244   /* A typeinfo structure.  This has one subtree, the type for which
 245      this is the tpeinfo structure.  */
 246   DEMANGLE_COMPONENT_TYPEINFO,
 247   /* A typeinfo name.  This has one subtree, the type for which this
 248      is the typeinfo name.  */
 249   DEMANGLE_COMPONENT_TYPEINFO_NAME,
 250   /* A typeinfo function.  This has one subtree, the type for which
 251      this is the tpyeinfo function.  */
 252   DEMANGLE_COMPONENT_TYPEINFO_FN,
 253   /* A thunk.  This has one subtree, the name for which this is a
 254      thunk.  */
 255   DEMANGLE_COMPONENT_THUNK,
 256   /* A virtual thunk.  This has one subtree, the name for which this
 257      is a virtual thunk.  */
 258   DEMANGLE_COMPONENT_VIRTUAL_THUNK,
 259   /* A covariant thunk.  This has one subtree, the name for which this
 260      is a covariant thunk.  */
 261   DEMANGLE_COMPONENT_COVARIANT_THUNK,
 262   /* A Java class.  This has one subtree, the type.  */
 263   DEMANGLE_COMPONENT_JAVA_CLASS,
 264   /* A guard variable.  This has one subtree, the name for which this
 265      is a guard variable.  */
 266   DEMANGLE_COMPONENT_GUARD,
 267   /* A reference temporary.  This has one subtree, the name for which
 268      this is a temporary.  */
 269   DEMANGLE_COMPONENT_REFTEMP,
 270   /* A hidden alias.  This has one subtree, the encoding for which it
 271      is providing alternative linkage.  */
 272   DEMANGLE_COMPONENT_HIDDEN_ALIAS,
 273   /* A standard substitution.  This holds the name of the
 274      substitution.  */
 275   DEMANGLE_COMPONENT_SUB_STD,
 276   /* The restrict qualifier.  The one subtree is the type which is
 277      being qualified.  */
 278   DEMANGLE_COMPONENT_RESTRICT,
 279   /* The volatile qualifier.  The one subtree is the type which is
 280      being qualified.  */
 281   DEMANGLE_COMPONENT_VOLATILE,
 282   /* The const qualifier.  The one subtree is the type which is being
 283      qualified.  */
 284   DEMANGLE_COMPONENT_CONST,
 285   /* The restrict qualifier modifying a member function.  The one
 286      subtree is the type which is being qualified.  */
 287   DEMANGLE_COMPONENT_RESTRICT_THIS,
 288   /* The volatile qualifier modifying a member function.  The one
 289      subtree is the type which is being qualified.  */
 290   DEMANGLE_COMPONENT_VOLATILE_THIS,
 291   /* The const qualifier modifying a member function.  The one subtree
 292      is the type which is being qualified.  */
 293   DEMANGLE_COMPONENT_CONST_THIS,
 294   /* A vendor qualifier.  The left subtree is the type which is being
 295      qualified, and the right subtree is the name of the
 296      qualifier.  */
 297   DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL,
 298   /* A pointer.  The one subtree is the type which is being pointed
 299      to.  */
 300   DEMANGLE_COMPONENT_POINTER,
 301   /* A reference.  The one subtree is the type which is being
 302      referenced.  */
 303   DEMANGLE_COMPONENT_REFERENCE,
 304   /* C++0x: An rvalue reference.  The one subtree is the type which is
 305      being referenced.  */
 306   DEMANGLE_COMPONENT_RVALUE_REFERENCE,
 307   /* A complex type.  The one subtree is the base type.  */
 308   DEMANGLE_COMPONENT_COMPLEX,
 309   /* An imaginary type.  The one subtree is the base type.  */
 310   DEMANGLE_COMPONENT_IMAGINARY,
 311   /* A builtin type.  This holds the builtin type information.  */
 312   DEMANGLE_COMPONENT_BUILTIN_TYPE,
 313   /* A vendor's builtin type.  This holds the name of the type.  */
 314   DEMANGLE_COMPONENT_VENDOR_TYPE,
 315   /* A function type.  The left subtree is the return type.  The right
 316      subtree is a list of ARGLIST nodes.  Either or both may be
 317      NULL.  */
 318   DEMANGLE_COMPONENT_FUNCTION_TYPE,
 319   /* An array type.  The left subtree is the dimension, which may be
 320      NULL, or a string (represented as DEMANGLE_COMPONENT_NAME), or an
 321      expression.  The right subtree is the element type.  */
 322   DEMANGLE_COMPONENT_ARRAY_TYPE,
 323   /* A pointer to member type.  The left subtree is the class type,
 324      and the right subtree is the member type.  CV-qualifiers appear
 325      on the latter.  */
 326   DEMANGLE_COMPONENT_PTRMEM_TYPE,
 327   /* A fixed-point type.  */
 328   DEMANGLE_COMPONENT_FIXED_TYPE,
 329   /* A vector type.  The left subtree is the number of elements,
 330      the right subtree is the element type.  */
 331   DEMANGLE_COMPONENT_VECTOR_TYPE,
 332   /* An argument list.  The left subtree is the current argument, and
 333      the right subtree is either NULL or another ARGLIST node.  */
 334   DEMANGLE_COMPONENT_ARGLIST,
 335   /* A template argument list.  The left subtree is the current
 336      template argument, and the right subtree is either NULL or
 337      another TEMPLATE_ARGLIST node.  */
 338   DEMANGLE_COMPONENT_TEMPLATE_ARGLIST,
 339   /* An operator.  This holds information about a standard
 340      operator.  */
 341   DEMANGLE_COMPONENT_OPERATOR,
 342   /* An extended operator.  This holds the number of arguments, and
 343      the name of the extended operator.  */
 344   DEMANGLE_COMPONENT_EXTENDED_OPERATOR,
 345   /* A typecast, represented as a unary operator.  The one subtree is
 346      the type to which the argument should be cast.  */
 347   DEMANGLE_COMPONENT_CAST,
 348   /* A unary expression.  The left subtree is the operator, and the
 349      right subtree is the single argument.  */
 350   DEMANGLE_COMPONENT_UNARY,
 351   /* A binary expression.  The left subtree is the operator, and the
 352      right subtree is a BINARY_ARGS.  */
 353   DEMANGLE_COMPONENT_BINARY,
 354   /* Arguments to a binary expression.  The left subtree is the first
 355      argument, and the right subtree is the second argument.  */
 356   DEMANGLE_COMPONENT_BINARY_ARGS,
 357   /* A trinary expression.  The left subtree is the operator, and the
 358      right subtree is a TRINARY_ARG1.  */
 359   DEMANGLE_COMPONENT_TRINARY,
 360   /* Arguments to a trinary expression.  The left subtree is the first
 361      argument, and the right subtree is a TRINARY_ARG2.  */
 362   DEMANGLE_COMPONENT_TRINARY_ARG1,
 363   /* More arguments to a trinary expression.  The left subtree is the
 364      second argument, and the right subtree is the third argument.  */
 365   DEMANGLE_COMPONENT_TRINARY_ARG2,
 366   /* A literal.  The left subtree is the type, and the right subtree
 367      is the value, represented as a DEMANGLE_COMPONENT_NAME.  */
 368   DEMANGLE_COMPONENT_LITERAL,
 369   /* A negative literal.  Like LITERAL, but the value is negated.
 370      This is a minor hack: the NAME used for LITERAL points directly
 371      to the mangled string, but since negative numbers are mangled
 372      using 'n' instead of '-', we want a way to indicate a negative
 373      number which involves neither modifying the mangled string nor
 374      allocating a new copy of the literal in memory.  */
 375   DEMANGLE_COMPONENT_LITERAL_NEG,
 376   /* A libgcj compiled resource.  The left subtree is the name of the
 377      resource.  */
 378   DEMANGLE_COMPONENT_JAVA_RESOURCE,
 379   /* A name formed by the concatenation of two parts.  The left
 380      subtree is the first part and the right subtree the second.  */
 381   DEMANGLE_COMPONENT_COMPOUND_NAME,
 382   /* A name formed by a single character.  */
 383   DEMANGLE_COMPONENT_CHARACTER,
 384   /* A number.  */
 385   DEMANGLE_COMPONENT_NUMBER,
 386   /* A decltype type.  */
 387   DEMANGLE_COMPONENT_DECLTYPE,
 388   /* Global constructors keyed to name.  */
 389   DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS,
 390   /* Global destructors keyed to name.  */
 391   DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS,
 392   /* A lambda closure type.  */
 393   DEMANGLE_COMPONENT_LAMBDA,
 394   /* A default argument scope.  */
 395   DEMANGLE_COMPONENT_DEFAULT_ARG,
 396   /* An unnamed type.  */
 397   DEMANGLE_COMPONENT_UNNAMED_TYPE,
 398   /* A pack expansion.  */
 399   DEMANGLE_COMPONENT_PACK_EXPANSION,
 400   /* A cloned function.  */
 401   DEMANGLE_COMPONENT_CLONE
 402 };
 403
 404 /* Types which are only used internally.  */
 405
 406 struct demangle_operator_info;
 407 struct demangle_builtin_type_info;
 408
 409 /* A node in the tree representation is an instance of a struct
 410    demangle_component.  Note that the field names of the struct are
 411    not well protected against macros defined by the file including
 412    this one.  We can fix this if it ever becomes a problem.  */
 413
 414 struct demangle_component
 415 {
 416   /* The type of this component.  */
 417   enum demangle_component_type type;
 418
 419   union
 420   {
 421     /* For DEMANGLE_COMPONENT_NAME.  */
 422     struct
 423     {
 424       /* A pointer to the name (which need not NULL terminated) and
 425          its length.  */
 426       const char *s;
 427       int len;
 428     } s_name;
 429
 430     /* For DEMANGLE_COMPONENT_OPERATOR.  */
 431     struct
 432     {
 433       /* Operator.  */
 434       const struct demangle_operator_info *op;
 435     } s_operator;
 436
 437     /* For DEMANGLE_COMPONENT_EXTENDED_OPERATOR.  */
 438     struct
 439     {
 440       /* Number of arguments.  */
 441       int args;
 442       /* Name.  */
 443       struct demangle_component *name;
 444     } s_extended_operator;
 445
 446     /* For DEMANGLE_COMPONENT_FIXED_TYPE.  */
 447     struct
 448     {
 449       /* The length, indicated by a C integer type name.  */
 450       struct demangle_component *length;
 451       /* _Accum or _Fract?  */
 452       short accum;
 453       /* Saturating or not?  */
 454       short sat;
 455     } s_fixed;
 456
 457     /* For DEMANGLE_COMPONENT_CTOR.  */
 458     struct
 459     {
 460       /* Kind of constructor.  */
 461       enum gnu_v3_ctor_kinds kind;
 462       /* Name.  */
 463       struct demangle_component *name;
 464     } s_ctor;
 465
 466     /* For DEMANGLE_COMPONENT_DTOR.  */
 467     struct
 468     {
 469       /* Kind of destructor.  */
 470       enum gnu_v3_dtor_kinds kind;
 471       /* Name.  */
 472       struct demangle_component *name;
 473     } s_dtor;
 474
 475     /* For DEMANGLE_COMPONENT_BUILTIN_TYPE.  */
 476     struct
 477     {
 478       /* Builtin type.  */
 479       const struct demangle_builtin_type_info *type;
 480     } s_builtin;
 481
 482     /* For DEMANGLE_COMPONENT_SUB_STD.  */
 483     struct
 484     {
 485       /* Standard substitution string.  */
 486       const char* string;
 487       /* Length of string.  */
 488       int len;
 489     } s_string;
 490
 491     /* For DEMANGLE_COMPONENT_*_PARAM.  */
 492     struct
 493     {
 494       /* Parameter index.  */
 495       long number;
 496     } s_number;
 497
 498     /* For DEMANGLE_COMPONENT_CHARACTER.  */
 499     struct
 500     {
 501       int character;
 502     } s_character;
 503
 504     /* For other types.  */
 505     struct
 506     {
 507       /* Left (or only) subtree.  */
 508       struct demangle_component *left;
 509       /* Right subtree.  */
 510       struct demangle_component *right;
 511     } s_binary;
 512
 513     struct
 514     {
 515       /* subtree, same place as d_left.  */
 516       struct demangle_component *sub;
 517       /* integer.  */
 518       int num;
 519     } s_unary_num;
 520
 521   } u;
 522 };
 523
 524 /* People building mangled trees are expected to allocate instances of
 525    struct demangle_component themselves.  They can then call one of
 526    the following functions to fill them in.  */
 527
 528 /* Fill in most component types with a left subtree and a right
 529    subtree.  Returns non-zero on success, zero on failure, such as an
 530    unrecognized or inappropriate component type.  */
 531
 532 extern int
 533 cplus_demangle_fill_component (struct demangle_component *fill,
 534                                enum demangle_component_type,
 535                                struct demangle_component *left,
 536                                struct demangle_component *right);
 537
 538 /* Fill in a DEMANGLE_COMPONENT_NAME.  Returns non-zero on success,
 539    zero for bad arguments.  */
 540
 541 extern int
 542 cplus_demangle_fill_name (struct demangle_component *fill,
 543                           const char *, int);
 544
 545 /* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE, using the name of the
 546    builtin type (e.g., "int", etc.).  Returns non-zero on success,
 547    zero if the type is not recognized.  */
 548
 549 extern int
 550 cplus_demangle_fill_builtin_type (struct demangle_component *fill,
 551                                   const char *type_name);
 552
 553 /* Fill in a DEMANGLE_COMPONENT_OPERATOR, using the name of the
 554    operator and the number of arguments which it takes (the latter is
 555    used to disambiguate operators which can be both binary and unary,
 556    such as '-').  Returns non-zero on success, zero if the operator is
 557    not recognized.  */
 558
 559 extern int
 560 cplus_demangle_fill_operator (struct demangle_component *fill,
 561                               const char *opname, int args);
 562
 563 /* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR, providing the
 564    number of arguments and the name.  Returns non-zero on success,
 565    zero for bad arguments.  */
 566
 567 extern int
 568 cplus_demangle_fill_extended_operator (struct demangle_component *fill,
 569                                        int numargs,
 570                                        struct demangle_component *nm);
 571
 572 /* Fill in a DEMANGLE_COMPONENT_CTOR.  Returns non-zero on success,
 573    zero for bad arguments.  */
 574
 575 extern int
 576 cplus_demangle_fill_ctor (struct demangle_component *fill,
 577                           enum gnu_v3_ctor_kinds kind,
 578                           struct demangle_component *name);
 579
 580 /* Fill in a DEMANGLE_COMPONENT_DTOR.  Returns non-zero on success,
 581    zero for bad arguments.  */
 582
 583 extern int
 584 cplus_demangle_fill_dtor (struct demangle_component *fill,
 585                           enum gnu_v3_dtor_kinds kind,
 586                           struct demangle_component *name);
 587
 588 /* This function translates a mangled name into a struct
 589    demangle_component tree.  The first argument is the mangled name.
 590    The second argument is DMGL_* options.  This returns a pointer to a
 591    tree on success, or NULL on failure.  On success, the third
 592    argument is set to a block of memory allocated by malloc.  This
 593    block should be passed to free when the tree is no longer
 594    needed.  */
 595
 596 extern struct demangle_component *
 597 cplus_demangle_v3_components (const char *mangled, int options, void **mem);
 598
 599 /* This function takes a struct demangle_component tree and returns
 600    the corresponding demangled string.  The first argument is DMGL_*
 601    options.  The second is the tree to demangle.  The third is a guess
 602    at the length of the demangled string, used to initially allocate
 603    the return buffer.  The fourth is a pointer to a size_t.  On
 604    success, this function returns a buffer allocated by malloc(), and
 605    sets the size_t pointed to by the fourth argument to the size of
 606    the allocated buffer (not the length of the returned string).  On
 607    failure, this function returns NULL, and sets the size_t pointed to
 608    by the fourth argument to 0 for an invalid tree, or to 1 for a
 609    memory allocation error.  */
 610
 611 extern char *
 612 cplus_demangle_print (int options,
 613                       const struct demangle_component *tree,
 614                       int estimated_length,
 615                       size_t *p_allocated_size);
 616
 617 /* This function takes a struct demangle_component tree and passes back
 618    a demangled string in one or more calls to a callback function.
 619    The first argument is DMGL_* options.  The second is the tree to
 620    demangle.  The third is a pointer to a callback function; on each call
 621    this receives an element of the demangled string, its length, and an
 622    opaque value.  The fourth is the opaque value passed to the callback.
 623    The callback is called once or more to return the full demangled
 624    string.  The demangled element string is always nul-terminated, though
 625    its length is also provided for convenience.  In contrast to
 626    cplus_demangle_print(), this function does not allocate heap memory
 627    to grow output strings (except perhaps where alloca() is implemented
 628    by malloc()), and so is normally safe for use where the heap has been
 629    corrupted.  On success, this function returns 1; on failure, 0.  */
 630
 631 extern int
 632 cplus_demangle_print_callback (int options,
 633                                const struct demangle_component *tree,
 634                                demangle_callbackref callback, void *opaque);
 635
 636 #ifdef __cplusplus
 637 }
 638 #endif /* __cplusplus */
 639
 640 #endif  /* DEMANGLE_H */