1 /* Language-dependent hooks for Objective-C++. 2 Copyright 2005, 2007, 2008 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 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 "objc-act.h" 31 #include "langhooks.h" 32 #include "langhooks-def.h" 33 #include "diagnostic.h" 34 #include "debug.h" 35 #include "cp-objcp-common.h" 36 #include "except.h" 37 38 enum c_language_kind c_language = clk_objcxx; 39 static void objcxx_init_ts (void); 40 static tree objcxx_eh_personality (void); 41 42 /* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h; 43 consequently, there should be very few hooks below. */ 44 45 #undef LANG_HOOKS_NAME 46 #define LANG_HOOKS_NAME "GNU Objective-C++" 47 #undef LANG_HOOKS_INIT 48 #define LANG_HOOKS_INIT objc_init 49 #undef LANG_HOOKS_DECL_PRINTABLE_NAME 50 #define LANG_HOOKS_DECL_PRINTABLE_NAME objc_printable_name 51 #undef LANG_HOOKS_GIMPLIFY_EXPR 52 #define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr 53 #undef LANG_HOOKS_INIT_TS 54 #define LANG_HOOKS_INIT_TS objcxx_init_ts 55 #undef LANG_HOOKS_EH_PERSONALITY 56 #define LANG_HOOKS_EH_PERSONALITY objcxx_eh_personality 57 #undef LANG_HOOKS_EH_RUNTIME_TYPE 58 #define LANG_HOOKS_EH_RUNTIME_TYPE build_eh_type_type 59 60 /* Each front end provides its own lang hook initializer. */ 61 struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER; 62 63 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c; 64 there should be very few (if any) routines below. */ 65 66 tree 67 objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain, 68 tree in_decl, bool function_p ATTRIBUTE_UNUSED) 69 { 70 #define RECURSE(NODE) \ 71 tsubst_copy_and_build (NODE, args, complain, in_decl, \ 72 /*function_p=*/false, \ 73 /*integral_constant_expression_p=*/false) 74 75 /* The following two can only occur in Objective-C++. */ 76 77 switch ((int) TREE_CODE (t)) 78 { 79 case MESSAGE_SEND_EXPR: 80 return objc_finish_message_expr 81 (RECURSE (TREE_OPERAND (t, 0)), 82 TREE_OPERAND (t, 1), /* No need to expand the selector. */ 83 RECURSE (TREE_OPERAND (t, 2))); 84 85 case CLASS_REFERENCE_EXPR: 86 return objc_get_class_reference 87 (RECURSE (TREE_OPERAND (t, 0))); 88 89 default: 90 break; 91 } 92 93 /* Fall back to C++ processing. */ 94 return NULL_TREE; 95 96 #undef RECURSE 97 } 98 99 static void 100 objcxx_init_ts (void) 101 { 102 /* objc decls */ 103 tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_NON_COMMON] = 1; 104 tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_NON_COMMON] = 1; 105 tree_contains_struct[KEYWORD_DECL][TS_DECL_NON_COMMON] = 1; 106 107 tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_WITH_VIS] = 1; 108 tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_WITH_VIS] = 1; 109 tree_contains_struct[KEYWORD_DECL][TS_DECL_WITH_VIS] = 1; 110 111 tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_WRTL] = 1; 112 tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_WRTL] = 1; 113 tree_contains_struct[KEYWORD_DECL][TS_DECL_WRTL] = 1; 114 115 tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_MINIMAL] = 1; 116 tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_MINIMAL] = 1; 117 tree_contains_struct[KEYWORD_DECL][TS_DECL_MINIMAL] = 1; 118 119 tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_COMMON] = 1; 120 tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_COMMON] = 1; 121 tree_contains_struct[KEYWORD_DECL][TS_DECL_COMMON] = 1; 122 123 /* C++ decls */ 124 tree_contains_struct[NAMESPACE_DECL][TS_DECL_NON_COMMON] = 1; 125 tree_contains_struct[USING_DECL][TS_DECL_NON_COMMON] = 1; 126 tree_contains_struct[TEMPLATE_DECL][TS_DECL_NON_COMMON] = 1; 127 128 tree_contains_struct[NAMESPACE_DECL][TS_DECL_WITH_VIS] = 1; 129 tree_contains_struct[USING_DECL][TS_DECL_WITH_VIS] = 1; 130 tree_contains_struct[TEMPLATE_DECL][TS_DECL_WITH_VIS] = 1; 131 132 tree_contains_struct[NAMESPACE_DECL][TS_DECL_WRTL] = 1; 133 tree_contains_struct[USING_DECL][TS_DECL_WRTL] = 1; 134 tree_contains_struct[TEMPLATE_DECL][TS_DECL_WRTL] = 1; 135 136 tree_contains_struct[NAMESPACE_DECL][TS_DECL_COMMON] = 1; 137 tree_contains_struct[USING_DECL][TS_DECL_COMMON] = 1; 138 tree_contains_struct[TEMPLATE_DECL][TS_DECL_COMMON] = 1; 139 140 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; 143 144 init_shadowed_var_for_decl (); 145 } 146 147 static GTY(()) tree objcp_eh_personality_decl; 148 149 static tree 150 objcxx_eh_personality (void) 151 { 152 if (!objcp_eh_personality_decl) 153 objcp_eh_personality_decl 154 = build_personality_function (USING_SJLJ_EXCEPTIONS 155 ? "__gxx_personality_sj0" 156 : "__gxx_personality_v0"); 157 158 return objcp_eh_personality_decl; 159 } 160 161 162 void 163 finish_file (void) 164 { 165 objc_finish_file (); 166 } 167 168 #include "gtype-objcp.h" 169