gdb/cp-support.h

   1 /* Helper routines for C++ support in GDB.
   2    Copyright (C) 2002-2020 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 "gdbsupport/gdb_vecs.h"
  29 #include "gdb_obstack.h"
  30 #include "gdbsupport/array-view.h"
  31 #include <vector>
  32
  33 /* Opaque declarations.  */
  34
  35 struct symbol;
  36 struct block;
  37 struct buildsym_compunit;
  38 struct objfile;
  39 struct type;
  40 struct demangle_component;
  41 struct using_direct;
  42
  43 /* A string representing the name of the anonymous namespace used in GDB.  */
  44
  45 #define CP_ANONYMOUS_NAMESPACE_STR "(anonymous namespace)"
  46
  47 /* The length of the string representing the anonymous namespace.  */
  48
  49 #define CP_ANONYMOUS_NAMESPACE_LEN 21
  50
  51 /* A string representing the start of an operator name.  */
  52
  53 #define CP_OPERATOR_STR "operator"
  54
  55 /* The length of CP_OPERATOR_STR.  */
  56
  57 #define CP_OPERATOR_LEN 8
  58
  59 /* The result of parsing a name.  */
  60
  61 struct demangle_parse_info
  62 {
  63   demangle_parse_info ();
  64
  65   ~demangle_parse_info ();
  66
  67   /* The memory used during the parse.  */
  68   struct demangle_info *info;
  69
  70   /* The result of the parse.  */
  71   struct demangle_component *tree;
  72
  73   /* Any temporary memory used during typedef replacement.  */
  74   struct obstack obstack;
  75 };
  76
  77
  78 /* Functions from cp-support.c.  */
  79
  80 extern gdb::unique_xmalloc_ptr<char> cp_canonicalize_string
  81   (const char *string);
  82
  83 extern gdb::unique_xmalloc_ptr<char> cp_canonicalize_string_no_typedefs
  84   (const char *string);
  85
  86 typedef const char *(canonicalization_ftype) (struct type *, void *);
  87
  88 extern gdb::unique_xmalloc_ptr<char> cp_canonicalize_string_full
  89   (const char *string, canonicalization_ftype *finder, void *data);
  90
  91 extern char *cp_class_name_from_physname (const char *physname);
  92
  93 extern char *method_name_from_physname (const char *physname);
  94
  95 extern unsigned int cp_find_first_component (const char *name);
  96
  97 extern unsigned int cp_entire_prefix_len (const char *name);
  98
  99 extern gdb::unique_xmalloc_ptr<char> cp_func_name (const char *full_name);
 100
 101 extern gdb::unique_xmalloc_ptr<char> cp_remove_params
 102   (const char *demanged_name);
 103
 104 /* DEMANGLED_NAME is the name of a function, (optionally) including
 105    parameters and (optionally) a return type.  Return the name of the
 106    function without parameters or return type, or NULL if we can not
 107    parse the name.  If COMPLETION_MODE is true, then tolerate a
 108    non-existing or unbalanced parameter list.  */
 109 extern gdb::unique_xmalloc_ptr<char> cp_remove_params_if_any
 110   (const char *demangled_name, bool completion_mode);
 111
 112 extern std::vector<symbol *> make_symbol_overload_list (const char *,
 113                                                         const char *);
 114
 115 extern void add_symbol_overload_list_adl
 116   (gdb::array_view<type *> arg_types,
 117    const char *func_name,
 118    std::vector<symbol *> *overload_list);
 119
 120 extern struct type *cp_lookup_rtti_type (const char *name,
 121                                          const struct block *block);
 122
 123 /* Produce an unsigned hash value from SEARCH_NAME that is compatible
 124    with cp_symbol_name_matches.  Only the last component in
 125    "foo::bar::function()" is considered for hashing purposes (i.e.,
 126    the entire prefix is skipped), so that later on looking up for
 127    "function" or "bar::function" in all namespaces is possible.  */
 128 extern unsigned int cp_search_name_hash (const char *search_name);
 129
 130 /* Implement the "get_symbol_name_matcher" language_defn method for C++.  */
 131 extern symbol_name_matcher_ftype *cp_get_symbol_name_matcher
 132   (const lookup_name_info &lookup_name);
 133
 134 /* Functions/variables from cp-namespace.c.  */
 135
 136 extern int cp_is_in_anonymous (const char *symbol_name);
 137
 138 extern void cp_scan_for_anonymous_namespaces (struct buildsym_compunit *,
 139                                               const struct symbol *symbol,
 140                                               struct objfile *objfile);
 141
 142 extern struct block_symbol cp_lookup_symbol_nonlocal
 143      (const struct language_defn *langdef,
 144       const char *name,
 145       const struct block *block,
 146       const domain_enum domain);
 147
 148 extern struct block_symbol
 149   cp_lookup_symbol_namespace (const char *the_namespace,
 150                               const char *name,
 151                               const struct block *block,
 152                               const domain_enum domain);
 153
 154 extern struct block_symbol cp_lookup_symbol_imports_or_template
 155      (const char *scope,
 156       const char *name,
 157       const struct block *block,
 158       const domain_enum domain);
 159
 160 extern struct block_symbol
 161   cp_lookup_nested_symbol (struct type *parent_type,
 162                            const char *nested_name,
 163                            const struct block *block,
 164                            const domain_enum domain);
 165
 166 struct type *cp_lookup_transparent_type (const char *name);
 167
 168 /* See description in cp-namespace.c.  */
 169
 170 struct type *cp_find_type_baseclass_by_name (struct type *parent_type,
 171                                              const char *name);
 172
 173 /* Functions from cp-name-parser.y.  */
 174
 175 extern std::unique_ptr<demangle_parse_info> cp_demangled_name_to_comp
 176      (const char *demangled_name, std::string *errmsg);
 177
 178 extern gdb::unique_xmalloc_ptr<char> cp_comp_to_string
 179   (struct demangle_component *result, int estimated_len);
 180
 181 extern void cp_merge_demangle_parse_infos (struct demangle_parse_info *,
 182                                            struct demangle_component *,
 183                                            struct demangle_parse_info *);
 184
 185 /* The list of "maint cplus" commands.  */
 186
 187 extern struct cmd_list_element *maint_cplus_cmd_list;
 188
 189 /* A wrapper for bfd_demangle.  */
 190
 191 char *gdb_demangle (const char *name, int options);
 192
 193 #endif /* CP_SUPPORT_H */