1 /* Language-dependent hooks for C++.
2 Copyright 2001, 2002, 2004 Free Software Foundation, Inc.
3 Contributed by Alexandre Oliva <aoliva@redhat.com>
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
24 #include "coretypes.h"
30 #include "langhooks.h"
31 #include "langhooks-def.h"
32 #include "diagnostic.h"
34 #include "cp-objcp-common.h"
37 enum c_language_kind c_language = clk_cxx;
38 static void cp_init_ts (void);
40 /* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
41 consequently, there should be very few hooks below. */
43 #undef LANG_HOOKS_NAME
44 #define LANG_HOOKS_NAME "GNU C++"
45 #undef LANG_HOOKS_INIT
46 #define LANG_HOOKS_INIT cxx_init
47 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
48 #define LANG_HOOKS_DECL_PRINTABLE_NAME cxx_printable_name
49 #undef LANG_HOOKS_FOLD_OBJ_TYPE_REF
50 #define LANG_HOOKS_FOLD_OBJ_TYPE_REF cp_fold_obj_type_ref
51 #undef LANG_HOOKS_INIT_TS
52 #define LANG_HOOKS_INIT_TS cp_init_ts
54 /* Each front end provides its own lang hook initializer. */
55 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
57 /* Tree code classes. */
59 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
61 const enum tree_code_class tree_code_type[] = {
64 #include "c-common.def"
66 #include "cp-tree.def"
70 /* Table indexed by tree code giving number of expression
71 operands beyond the fixed part of the node structure.
72 Not used for types or decls. */
74 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
76 const unsigned char tree_code_length[] = {
79 #include "c-common.def"
81 #include "cp-tree.def"
85 /* Names of tree components.
86 Used for printing out the tree and error messages. */
87 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
89 const char *const tree_code_name[] = {
92 #include "c-common.def"
94 #include "cp-tree.def"
98 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
99 there should be very few routines below. */
101 /* The following function does something real, but only in Objective-C++. */
104 objcp_tsubst_copy_and_build (tree t ATTRIBUTE_UNUSED,
105 tree args ATTRIBUTE_UNUSED,
106 tsubst_flags_t complain ATTRIBUTE_UNUSED,
107 tree in_decl ATTRIBUTE_UNUSED,
108 bool function_p ATTRIBUTE_UNUSED)
113 static GTY ((if_marked ("tree_map_marked_p"), param_is (struct tree_map)))
114 htab_t shadowed_var_for_decl;
120 tree_contains_struct[NAMESPACE_DECL][TS_DECL_NON_COMMON] = 1;
121 tree_contains_struct[USING_DECL][TS_DECL_NON_COMMON] = 1;
122 tree_contains_struct[TEMPLATE_DECL][TS_DECL_NON_COMMON] = 1;
123 tree_contains_struct[ALIAS_DECL][TS_DECL_NON_COMMON] = 1;
125 tree_contains_struct[NAMESPACE_DECL][TS_DECL_WITH_VIS] = 1;
126 tree_contains_struct[USING_DECL][TS_DECL_WITH_VIS] = 1;
127 tree_contains_struct[TEMPLATE_DECL][TS_DECL_WITH_VIS] = 1;
128 tree_contains_struct[ALIAS_DECL][TS_DECL_WITH_VIS] = 1;
130 tree_contains_struct[NAMESPACE_DECL][TS_DECL_WRTL] = 1;
131 tree_contains_struct[USING_DECL][TS_DECL_WRTL] = 1;
132 tree_contains_struct[TEMPLATE_DECL][TS_DECL_WRTL] = 1;
133 tree_contains_struct[ALIAS_DECL][TS_DECL_WRTL] = 1;
135 tree_contains_struct[NAMESPACE_DECL][TS_DECL_COMMON] = 1;
136 tree_contains_struct[USING_DECL][TS_DECL_COMMON] = 1;
137 tree_contains_struct[TEMPLATE_DECL][TS_DECL_COMMON] = 1;
138 tree_contains_struct[ALIAS_DECL][TS_DECL_COMMON] = 1;
140 tree_contains_struct[NAMESPACE_DECL][TS_DECL_MINIMAL] = 1;
141 tree_contains_struct[USING_DECL][TS_DECL_MINIMAL] = 1;
142 tree_contains_struct[TEMPLATE_DECL][TS_DECL_MINIMAL] = 1;
143 tree_contains_struct[ALIAS_DECL][TS_DECL_MINIMAL] = 1;
145 shadowed_var_for_decl = htab_create_ggc (512, tree_map_hash,
150 /* Lookup a shadowed var for FROM, and return it if we find one. */
153 decl_shadowed_for_var_lookup (tree from)
155 struct tree_map *h, in;
158 h = htab_find_with_hash (shadowed_var_for_decl, &in,
159 htab_hash_pointer (from));
165 /* Insert a mapping FROM->TO in the shadowed var hashtable. */
168 decl_shadowed_for_var_insert (tree from, tree to)
173 h = ggc_alloc (sizeof (struct tree_map));
174 h->hash = htab_hash_pointer (from);
177 loc = htab_find_slot_with_hash (shadowed_var_for_decl, h, h->hash, INSERT);
178 *(struct tree_map **) loc = h;
187 #include "gt-cp-cp-lang.h"
188 #include "gtype-cp.h"