1 /* Language-dependent hooks for Objective-C++.
2 Copyright (C) 2005-2018 Free Software Foundation, Inc.
3 Contributed by Ziemowit Laski <zlaski@apple.com>
4
5 This file is part of GCC.
6
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 3, or (at your option)
10 any later version.
11
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.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 #include "config.h"
22 #include "system.h"
23 #include "coretypes.h"
24 #include "cp-tree.h"
25 #include "c-family/c-objc.h"
26 #include "objc-act.h"
27 #include "langhooks.h"
28 #include "langhooks-def.h"
29 #include "cp-objcp-common.h"
30
31 enum c_language_kind c_language = clk_objcxx;
32 static void objcxx_init_ts (void);
33
34 /* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
35 consequently, there should be very few hooks below. */
36
37 #undef LANG_HOOKS_NAME
38 #define LANG_HOOKS_NAME "GNU Objective-C++"
39 #undef LANG_HOOKS_INIT
40 #define LANG_HOOKS_INIT objc_init
41 #undef LANG_HOOKS_GIMPLIFY_EXPR
42 #define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr
43 #undef LANG_HOOKS_INIT_TS
44 #define LANG_HOOKS_INIT_TS objcxx_init_ts
45
46 /* Each front end provides its own lang hook initializer. */
47 struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
48
49 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
50 there should be very few (if any) routines below. */
51
52 tree
objcp_tsubst_copy_and_build(tree t,tree args,tsubst_flags_t complain,tree in_decl,bool function_p ATTRIBUTE_UNUSED)53 objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain,
54 tree in_decl, bool function_p ATTRIBUTE_UNUSED)
55 {
56 #define RECURSE(NODE) \
57 tsubst_copy_and_build (NODE, args, complain, in_decl, \
58 /*function_p=*/false, \
59 /*integral_constant_expression_p=*/false)
60
61 /* The following two can only occur in Objective-C++. */
62
63 switch ((int) TREE_CODE (t))
64 {
65 case MESSAGE_SEND_EXPR:
66 return objc_finish_message_expr
67 (RECURSE (TREE_OPERAND (t, 0)),
68 TREE_OPERAND (t, 1), /* No need to expand the selector. */
69 RECURSE (TREE_OPERAND (t, 2)), NULL);
70
71 case CLASS_REFERENCE_EXPR:
72 return objc_get_class_reference
73 (RECURSE (TREE_OPERAND (t, 0)));
74
75 default:
76 break;
77 }
78
79 /* Fall back to C++ processing. */
80 return NULL_TREE;
81
82 #undef RECURSE
83 }
84
85 static void
objcxx_init_ts(void)86 objcxx_init_ts (void)
87 {
88 objc_common_init_ts ();
89 cp_common_init_ts ();
90
91 init_shadowed_var_for_decl ();
92 }
93
94 #include "gtype-objcp.h"
95