1 /* Process the ObjC-specific declarations and variables for
2 the Objective-C++ compiler.
3 Copyright (C) 2005-2016 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 "cp-tree.h"
26
27 #include "c-family/c-objc.h"
28 #include "objcp-decl.h"
29
30 /* Hacks to simulate start_struct() and finish_struct(). */
31
32 tree
objcp_start_struct(location_t loc ATTRIBUTE_UNUSED,enum tree_code code ATTRIBUTE_UNUSED,tree name)33 objcp_start_struct (location_t loc ATTRIBUTE_UNUSED,
34 enum tree_code code ATTRIBUTE_UNUSED, tree name)
35 {
36 tree s;
37 /* The idea here is to mimic the actions that the C++ parser takes when
38 constructing 'extern "C" struct NAME {'. */
39 push_lang_context (lang_name_c);
40
41 if (!name)
42 name = make_anon_name ();
43
44 s = xref_tag (record_type, name, ts_global, 0);
45 CLASSTYPE_DECLARED_CLASS (s) = 0; /* this is a 'struct', not a 'class'. */
46 xref_basetypes (s, NULL_TREE); /* no base classes here! */
47
48 return begin_class_definition (s);
49 }
50
51 tree
objcp_finish_struct(location_t loc ATTRIBUTE_UNUSED,tree t,tree fieldlist,tree attributes)52 objcp_finish_struct (location_t loc ATTRIBUTE_UNUSED,
53 tree t, tree fieldlist, tree attributes)
54 {
55 tree field, next_field;
56
57 for (field = fieldlist; field; field = next_field)
58 {
59 next_field = TREE_CHAIN (field); /* insert one field at a time; */
60 TREE_CHAIN (field) = NULL_TREE; /* otherwise, grokfield croaks. */
61 finish_member_declaration (field);
62 }
63 t = finish_struct (t, attributes);
64
65 /* If we are inside an @interface and are generating the list of
66 ivars, we need to check for duplicate ivars.
67 */
68 if (fieldlist)
69 objc_detect_field_duplicates (true);
70
71 pop_lang_context ();
72
73 return t;
74 }
75
76 void
objcp_finish_function(void)77 objcp_finish_function (void)
78 {
79 /* The C++ flavor of 'finish_function' does not generate RTL -- one has
80 to call 'expand_or_defer_fn' to do that. */
81 expand_or_defer_fn (finish_function (0));
82 }
83
84 tree
objcp_xref_tag(enum tree_code code ATTRIBUTE_UNUSED,tree name)85 objcp_xref_tag (enum tree_code code ATTRIBUTE_UNUSED, tree name)
86 {
87 return xref_tag (record_type, name, ts_global, false);
88 }
89
90 int
objcp_comptypes(tree type1,tree type2)91 objcp_comptypes (tree type1, tree type2)
92 {
93 return comptypes (type1, type2, COMPARE_STRICT);
94 }
95
96 tree
objcp_begin_compound_stmt(int flags ATTRIBUTE_UNUSED)97 objcp_begin_compound_stmt (int flags ATTRIBUTE_UNUSED)
98 {
99 return begin_compound_stmt (0);
100 }
101
102 tree
objcp_end_compound_stmt(tree stmt,int flags ATTRIBUTE_UNUSED)103 objcp_end_compound_stmt (tree stmt, int flags ATTRIBUTE_UNUSED)
104 {
105 /* The following has been snarfed from
106 cp/semantics.c:finish_compound_stmt(). */
107 if (TREE_CODE (stmt) == BIND_EXPR)
108 BIND_EXPR_BODY (stmt) = do_poplevel (BIND_EXPR_BODY (stmt));
109 else if (STATEMENT_LIST_NO_SCOPE (stmt))
110 stmt = pop_stmt_list (stmt);
111 else
112 stmt = do_poplevel (stmt);
113
114 return stmt;
115 }
116