1 /* Process the ObjC-specific declarations and variables for 2 the Objective-C++ compiler. 3 Copyright (C) 2005, 2007, 2010 Free Software Foundation, Inc. 4 Contributed by Ziemowit Laski <zlaski@apple.com> 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it under 9 the terms of the GNU General Public License as published by the Free 10 Software Foundation; either version 3, or (at your option) any later 11 version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16 for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 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 "hashtab.h" 29 30 #include "c-family/c-objc.h" 31 #include "objc-act.h" 32 #include "objcp-decl.h" 33 34 /* Hacks to simulate start_struct() and finish_struct(). */ 35 36 tree 37 objcp_start_struct (location_t loc ATTRIBUTE_UNUSED, 38 enum tree_code code ATTRIBUTE_UNUSED, tree name) 39 { 40 tree s; 41 /* The idea here is to mimic the actions that the C++ parser takes when 42 constructing 'extern "C" struct NAME {'. */ 43 push_lang_context (lang_name_c); 44 45 if (!name) 46 name = make_anon_name (); 47 48 s = xref_tag (record_type, name, ts_global, 0); 49 CLASSTYPE_DECLARED_CLASS (s) = 0; /* this is a 'struct', not a 'class'. */ 50 xref_basetypes (s, NULL_TREE); /* no base classes here! */ 51 52 return begin_class_definition (s); 53 } 54 55 tree 56 objcp_finish_struct (location_t loc ATTRIBUTE_UNUSED, 57 tree t, tree fieldlist, tree attributes) 58 { 59 tree field, next_field; 60 61 for (field = fieldlist; field; field = next_field) 62 { 63 next_field = TREE_CHAIN (field); /* insert one field at a time; */ 64 TREE_CHAIN (field) = NULL_TREE; /* otherwise, grokfield croaks. */ 65 finish_member_declaration (field); 66 } 67 t = finish_struct (t, attributes); 68 69 /* If we are inside an @interface and are generating the list of 70 ivars, we need to check for duplicate ivars. 71 */ 72 if (fieldlist) 73 objc_detect_field_duplicates (true); 74 75 pop_lang_context (); 76 77 return t; 78 } 79 80 void 81 objcp_finish_function (void) 82 { 83 /* The C++ flavor of 'finish_function' does not generate RTL -- one has 84 to call 'expand_or_defer_fn' to do that. */ 85 expand_or_defer_fn (finish_function (0)); 86 } 87 88 tree 89 objcp_xref_tag (enum tree_code code ATTRIBUTE_UNUSED, tree name) 90 { 91 return xref_tag (record_type, name, ts_global, false); 92 } 93 94 int 95 objcp_comptypes (tree type1, tree type2) 96 { 97 return comptypes (type1, type2, COMPARE_STRICT); 98 } 99 100 tree 101 objcp_begin_compound_stmt (int flags ATTRIBUTE_UNUSED) 102 { 103 return begin_compound_stmt (0); 104 } 105 106 tree 107 objcp_end_compound_stmt (tree stmt, int flags ATTRIBUTE_UNUSED) 108 { 109 /* The following has been snarfed from 110 cp/semantics.c:finish_compound_stmt(). */ 111 if (TREE_CODE (stmt) == BIND_EXPR) 112 BIND_EXPR_BODY (stmt) = do_poplevel (BIND_EXPR_BODY (stmt)); 113 else if (STATEMENT_LIST_NO_SCOPE (stmt)) 114 stmt = pop_stmt_list (stmt); 115 else 116 stmt = do_poplevel (stmt); 117 118 return stmt; 119 } 120