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
objcp_start_struct(location_t loc ATTRIBUTE_UNUSED,enum tree_code code ATTRIBUTE_UNUSED,tree name)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
objcp_finish_struct(location_t loc ATTRIBUTE_UNUSED,tree t,tree fieldlist,tree attributes)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
objcp_finish_function(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
objcp_xref_tag(enum tree_code code ATTRIBUTE_UNUSED,tree name)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
objcp_comptypes(tree type1,tree type2)95 objcp_comptypes (tree type1, tree type2)
96 {
97 return comptypes (type1, type2, COMPARE_STRICT);
98 }
99
100 tree
objcp_begin_compound_stmt(int flags ATTRIBUTE_UNUSED)101 objcp_begin_compound_stmt (int flags ATTRIBUTE_UNUSED)
102 {
103 return begin_compound_stmt (0);
104 }
105
106 tree
objcp_end_compound_stmt(tree stmt,int flags ATTRIBUTE_UNUSED)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