cp-lang.c revision 259268 
1/* Language-dependent hooks for C++.
2   Copyright 2001, 2002, 2004 Free Software Foundation, Inc.
3   Contributed by Alexandre Oliva  <aoliva@redhat.com>
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GCC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING.  If not, write to
19the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20Boston, MA 02110-1301, USA.  */
21
22#include "config.h"
23#include "system.h"
24#include "coretypes.h"
25#include "tm.h"
26#include "tree.h"
27#include "cp-tree.h"
28#include "c-common.h"
29#include "toplev.h"
30#include "langhooks.h"
31#include "langhooks-def.h"
32#include "diagnostic.h"
33#include "debug.h"
34#include "cp-objcp-common.h"
35#include "hashtab.h"
36
37enum c_language_kind c_language = clk_cxx;
38static void cp_init_ts (void);
39
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.  */
42
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_GENERIC_TYPE_P
48#define LANG_HOOKS_GENERIC_TYPE_P class_tmpl_impl_spec_p
49#undef LANG_HOOKS_DECL_PRINTABLE_NAME
50#define LANG_HOOKS_DECL_PRINTABLE_NAME	cxx_printable_name
51#undef LANG_HOOKS_FOLD_OBJ_TYPE_REF
52#define LANG_HOOKS_FOLD_OBJ_TYPE_REF cp_fold_obj_type_ref
53#undef LANG_HOOKS_INIT_TS
54#define LANG_HOOKS_INIT_TS cp_init_ts
55
56/* Each front end provides its own lang hook initializer.  */
57const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
58
59/* Tree code classes.  */
60
61#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
62
63const enum tree_code_class tree_code_type[] = {
64#include "tree.def"
65  tcc_exceptional,
66#include "c-common.def"
67  tcc_exceptional,
68#include "cp-tree.def"
69};
70#undef DEFTREECODE
71
72/* Table indexed by tree code giving number of expression
73   operands beyond the fixed part of the node structure.
74   Not used for types or decls.  */
75
76#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
77
78const unsigned char tree_code_length[] = {
79#include "tree.def"
80  0,
81#include "c-common.def"
82  0,
83#include "cp-tree.def"
84};
85#undef DEFTREECODE
86
87/* Names of tree components.
88   Used for printing out the tree and error messages.  */
89#define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
90
91const char *const tree_code_name[] = {
92#include "tree.def"
93  "@@dummy",
94#include "c-common.def"
95  "@@dummy",
96#include "cp-tree.def"
97};
98#undef DEFTREECODE
99
100/* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
101   there should be very few routines below.  */
102
103/* The following function does something real, but only in Objective-C++.  */
104
105tree
106objcp_tsubst_copy_and_build (tree t ATTRIBUTE_UNUSED,
107			     tree args ATTRIBUTE_UNUSED,
108			     tsubst_flags_t complain ATTRIBUTE_UNUSED,
109			     tree in_decl ATTRIBUTE_UNUSED,
110			     bool function_p ATTRIBUTE_UNUSED)
111{
112  return NULL_TREE;
113}
114
115
116static void
117cp_init_ts (void)
118{
119  tree_contains_struct[NAMESPACE_DECL][TS_DECL_NON_COMMON] = 1;
120  tree_contains_struct[USING_DECL][TS_DECL_NON_COMMON] = 1;
121  tree_contains_struct[TEMPLATE_DECL][TS_DECL_NON_COMMON] = 1;
122
123  tree_contains_struct[NAMESPACE_DECL][TS_DECL_WITH_VIS] = 1;
124  tree_contains_struct[USING_DECL][TS_DECL_WITH_VIS] = 1;
125  tree_contains_struct[TEMPLATE_DECL][TS_DECL_WITH_VIS] = 1;
126
127  tree_contains_struct[NAMESPACE_DECL][TS_DECL_WRTL] = 1;
128  tree_contains_struct[USING_DECL][TS_DECL_WRTL] = 1;
129  tree_contains_struct[TEMPLATE_DECL][TS_DECL_WRTL] = 1;
130
131  tree_contains_struct[NAMESPACE_DECL][TS_DECL_COMMON] = 1;
132  tree_contains_struct[USING_DECL][TS_DECL_COMMON] = 1;
133  tree_contains_struct[TEMPLATE_DECL][TS_DECL_COMMON] = 1;
134
135  tree_contains_struct[NAMESPACE_DECL][TS_DECL_MINIMAL] = 1;
136  tree_contains_struct[USING_DECL][TS_DECL_MINIMAL] = 1;
137  tree_contains_struct[TEMPLATE_DECL][TS_DECL_MINIMAL] = 1;
138
139  init_shadowed_var_for_decl ();
140
141}
142
143void
144finish_file (void)
145{
146  cp_finish_file ();
147}
148
149#include "gtype-cp.h"
150