1*e4b17023SJohn Marino /* GNU Objective C Runtime selector implementation - Private functions
2*e4b17023SJohn Marino Copyright (C) 2010 Free Software Foundation, Inc.
3*e4b17023SJohn Marino Contributed by Nicola Pero <nicola.pero@meta-innovation.com>
4*e4b17023SJohn Marino
5*e4b17023SJohn Marino This file is part of GCC.
6*e4b17023SJohn Marino
7*e4b17023SJohn Marino GCC is free software; you can redistribute it and/or modify it under the
8*e4b17023SJohn Marino terms of the GNU General Public License as published by the Free Software
9*e4b17023SJohn Marino Foundation; either version 3, or (at your option) any later version.
10*e4b17023SJohn Marino
11*e4b17023SJohn Marino GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12*e4b17023SJohn Marino WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13*e4b17023SJohn Marino FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
14*e4b17023SJohn Marino details.
15*e4b17023SJohn Marino
16*e4b17023SJohn Marino Under Section 7 of GPL version 3, you are granted additional
17*e4b17023SJohn Marino permissions described in the GCC Runtime Library Exception, version
18*e4b17023SJohn Marino 3.1, as published by the Free Software Foundation.
19*e4b17023SJohn Marino
20*e4b17023SJohn Marino You should have received a copy of the GNU General Public License and
21*e4b17023SJohn Marino a copy of the GCC Runtime Library Exception along with this program;
22*e4b17023SJohn Marino see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23*e4b17023SJohn Marino <http://www.gnu.org/licenses/>. */
24*e4b17023SJohn Marino
25*e4b17023SJohn Marino #ifndef __objc_private_selector_INCLUDE_GNU
26*e4b17023SJohn Marino #define __objc_private_selector_INCLUDE_GNU
27*e4b17023SJohn Marino
28*e4b17023SJohn Marino /* Private runtime functions that may go away or be rewritten or
29*e4b17023SJohn Marino replaced. */
30*e4b17023SJohn Marino
31*e4b17023SJohn Marino /* Definition of a selector. Selectors themselves are not unique, but
32*e4b17023SJohn Marino the sel_id is a unique identifier. */
33*e4b17023SJohn Marino struct objc_selector
34*e4b17023SJohn Marino {
35*e4b17023SJohn Marino void *sel_id;
36*e4b17023SJohn Marino const char *sel_types;
37*e4b17023SJohn Marino };
38*e4b17023SJohn Marino
39*e4b17023SJohn Marino /* An inline, fast version of sel_isEqual(). */
40*e4b17023SJohn Marino inline static BOOL
sel_eq(SEL s1,SEL s2)41*e4b17023SJohn Marino sel_eq (SEL s1, SEL s2)
42*e4b17023SJohn Marino {
43*e4b17023SJohn Marino if (s1 == 0 || s2 == 0)
44*e4b17023SJohn Marino return s1 == s2;
45*e4b17023SJohn Marino else
46*e4b17023SJohn Marino return s1->sel_id == s2->sel_id;
47*e4b17023SJohn Marino }
48*e4b17023SJohn Marino
49*e4b17023SJohn Marino /* Number of selectors stored in each of the selector tables. */
50*e4b17023SJohn Marino extern unsigned int __objc_selector_max_index;
51*e4b17023SJohn Marino
52*e4b17023SJohn Marino /* Initialize the selector tables. This must be called by init.c. */
53*e4b17023SJohn Marino void __objc_init_selector_tables(void);
54*e4b17023SJohn Marino
55*e4b17023SJohn Marino /* Various private functions to register selectors. */
56*e4b17023SJohn Marino void __objc_register_selectors_from_class(Class);
57*e4b17023SJohn Marino void __objc_register_selectors_from_list (struct objc_method_list *);
58*e4b17023SJohn Marino void __objc_register_selectors_from_description_list
59*e4b17023SJohn Marino (struct objc_method_description_list *method_list);
60*e4b17023SJohn Marino void __objc_register_selectors_from_module (struct objc_selector *selectors);
61*e4b17023SJohn Marino
62*e4b17023SJohn Marino /* Return whether a selector is mapped or not ("mapped" meaning that
63*e4b17023SJohn Marino it has been inserted into the selector table). This is private as
64*e4b17023SJohn Marino only the runtime should ever encounter or need to know about
65*e4b17023SJohn Marino unmapped selectors. */
66*e4b17023SJohn Marino BOOL sel_is_mapped (SEL aSel);
67*e4b17023SJohn Marino
68*e4b17023SJohn Marino /* Return selector representing name without registering it if it
69*e4b17023SJohn Marino doesn't exist. Typically used internally by the runtime when it's
70*e4b17023SJohn Marino looking up methods that may or may not exist (such as +initialize)
71*e4b17023SJohn Marino in the most efficient way. */
72*e4b17023SJohn Marino SEL
73*e4b17023SJohn Marino sel_get_any_uid (const char *name);
74*e4b17023SJohn Marino
75*e4b17023SJohn Marino #endif /* not __objc_private_selector_INCLUDE_GNU */
76