gdb/cp-support.h

   1 /* Helper routines for C++ support in GDB.
   2    Copyright (C) 2002-2018 Free Software Foundation, Inc.
   3
   4    Contributed by MontaVista Software.
   5    Namespace support contributed by David Carlton.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef CP_SUPPORT_H
  23 #define CP_SUPPORT_H
  24
  25 /* We need this for 'domain_enum', alas...  */
  26
  27 #include "symtab.h"
  28 #include "vec.h"
  29 #include "gdb_vecs.h"
  30 #include "gdb_obstack.h"
  31
  32 /* Opaque declarations.  */
  33
  34 struct symbol;
  35 struct block;
  36 struct buildsym_compunit;
  37 struct objfile;
  38 struct type;
  39 struct demangle_component;
  40 struct using_direct;
  41
  42 /* A string representing the name of the anonymous namespace used in GDB.  */
  43
  44 #define CP_ANONYMOUS_NAMESPACE_STR "(anonymous namespace)"
  45
  46 /* The length of the string representing the anonymous namespace.  */
  47
  48 #define CP_ANONYMOUS_NAMESPACE_LEN 21
  49
  50 /* A string representing the start of an operator name.  */
  51
  52 #define CP_OPERATOR_STR "operator"
  53
  54 /* The length of CP_OPERATOR_STR.  */
  55
  56 #define CP_OPERATOR_LEN 8
  57
  58 /* The result of parsing a name.  */
  59
  60 struct demangle_parse_info
  61 {
  62   demangle_parse_info ();
  63
  64   ~demangle_parse_info ();
  65
  66   /* The memory used during the parse.  */
  67   struct demangle_info *info;
  68
  69   /* The result of the parse.  */
  70   struct demangle_component *tree;
  71
  72   /* Any temporary memory used during typedef replacement.  */
  73   struct obstack obstack;
  74 };
  75
  76
  77 /* Functions from cp-support.c.  */
  78
  79 extern std::string cp_canonicalize_string (const char *string);
  80
  81 extern std::string cp_canonicalize_string_no_typedefs (const char *string);
  82
  83 typedef const char *(canonicalization_ftype) (struct type *, void *);
  84
  85 extern std::string cp_canonicalize_string_full (const char *string,
  86                                                 canonicalization_ftype *finder,
  87                                                 void *data);
  88
  89 extern char *cp_class_name_from_physname (const char *physname);
  90
  91 extern char *method_name_from_physname (const char *physname);
  92
  93 extern unsigned int cp_find_first_component (const char *name);
  94
  95 extern unsigned int cp_entire_prefix_len (const char *name);
  96
  97 extern char *cp_func_name (const char *full_name);
  98
  99 extern gdb::unique_xmalloc_ptr<char> cp_remove_params
 100   (const char *demanged_name);
 101
 102 /* DEMANGLED_NAME is the name of a function, (optionally) including
 103    parameters and (optionally) a return type.  Return the name of the
 104    function without parameters or return type, or NULL if we can not
 105    parse the name.  If COMPLETION_MODE is true, then tolerate a
 106    non-existing or unbalanced parameter list.  */
 107 extern gdb::unique_xmalloc_ptr<char> cp_remove_params_if_any
 108   (const char *demangled_name, bool completion_mode);
 109
 110 extern struct symbol **make_symbol_overload_list (const char *,
 111                                                   const char *);
 112
 113 extern struct symbol **make_symbol_overload_list_adl (struct type **arg_types,
 114                                                       int nargs,
 115                                                       const char *func_name);
 116
 117 extern struct type *cp_lookup_rtti_type (const char *name,
 118                                          struct block *block);
 119
 120 /* Produce an unsigned hash value from SEARCH_NAME that is compatible
 121    with cp_symbol_name_matches.  Only the last component in
 122    "foo::bar::function()" is considered for hashing purposes (i.e.,
 123    the entire prefix is skipped), so that later on looking up for
 124    "function" or "bar::function" in all namespaces is possible.  */
 125 extern unsigned int cp_search_name_hash (const char *search_name);
 126
 127 /* Implement the "la_get_symbol_name_matcher" language_defn method for
 128    C++.  */
 129 extern symbol_name_matcher_ftype *cp_get_symbol_name_matcher
 130   (const lookup_name_info &lookup_name);
 131
 132 /* Functions/variables from cp-namespace.c.  */
 133
 134 extern int cp_is_in_anonymous (const char *symbol_name);
 135
 136 extern void cp_scan_for_anonymous_namespaces (struct buildsym_compunit *,
 137                                               const struct symbol *symbol,
 138                                               struct objfile *objfile);
 139
 140 extern struct block_symbol cp_lookup_symbol_nonlocal
 141      (const struct language_defn *langdef,
 142       const char *name,
 143       const struct block *block,
 144       const domain_enum domain);
 145
 146 extern struct block_symbol
 147   cp_lookup_symbol_namespace (const char *the_namespace,
 148                               const char *name,
 149                               const struct block *block,
 150                               const domain_enum domain);
 151
 152 extern struct block_symbol cp_lookup_symbol_imports_or_template
 153      (const char *scope,
 154       const char *name,
 155       const struct block *block,
 156       const domain_enum domain);
 157
 158 extern struct block_symbol
 159   cp_lookup_nested_symbol (struct type *parent_type,
 160                            const char *nested_name,
 161                            const struct block *block,
 162                            const domain_enum domain);
 163
 164 struct type *cp_lookup_transparent_type (const char *name);
 165
 166 /* See description in cp-namespace.c.  */
 167
 168 struct type *cp_find_type_baseclass_by_name (struct type *parent_type,
 169                                              const char *name);
 170
 171 /* Functions from cp-name-parser.y.  */
 172
 173 extern std::unique_ptr<demangle_parse_info> cp_demangled_name_to_comp
 174      (const char *demangled_name, std::string *errmsg);
 175
 176 extern gdb::unique_xmalloc_ptr<char> cp_comp_to_string
 177   (struct demangle_component *result, int estimated_len);
 178
 179 extern void cp_merge_demangle_parse_infos (struct demangle_parse_info *,
 180                                            struct demangle_component *,
 181                                            struct demangle_parse_info *);
 182
 183 /* The list of "maint cplus" commands.  */
 184
 185 extern struct cmd_list_element *maint_cplus_cmd_list;
 186
 187 /* A wrapper for bfd_demangle.  */
 188
 189 char *gdb_demangle (const char *name, int options);
 190
 191 /* Like gdb_demangle, but suitable for use as la_sniff_from_mangled_name.  */
 192
 193 int gdb_sniff_from_mangled_name (const char *mangled, char **demangled);
 194
 195 #endif /* CP_SUPPORT_H */