2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Calculate finalization of classes and entities by
23 * inspecting the class hierarchy.
24 * @author Michael Beck
34 DEBUG_ONLY(static firm_dbg_module_t *dbg;)
36 static void do_finalization(type_or_ent tore, void *env)
38 ir_type *glob_tp = (ir_type*)env;
40 if (is_type(tore.typ)) {
41 ir_type *cls = tore.typ;
43 if (!is_Class_type(cls))
46 if (is_class_final(cls))
48 if (get_class_n_subtypes(cls) == 0) {
49 /* Note that we set the final property even for the
50 frame/global types this way. Should not made any problems. */
51 set_class_final(cls, 1);
52 DB((dbg, LEVEL_1, " made final Class %s\n",
53 get_class_name(cls)));
56 ir_entity *ent = tore.ent;
59 if (is_entity_final(ent))
62 owner = get_entity_owner(ent);
63 /* beware of array entities */
64 if (! is_Class_type(owner) || owner == glob_tp)
67 if (is_class_final(owner)) {
68 assert(get_entity_n_overwrittenby(ent) == 0);
69 set_entity_final(ent, 1);
70 DB((dbg, LEVEL_1, " made final %s::%s\n",
71 get_compound_name(owner), get_entity_name(ent)));
72 } else if (get_entity_n_overwrittenby(ent) == 0) {
73 set_entity_final(ent, 1);
74 DB((dbg, LEVEL_1, " made final %s::%s\n",
75 get_compound_name(owner), get_entity_name(ent)));
80 void types_calc_finalization(void)
82 if (! get_opt_closed_world())
85 FIRM_DBG_REGISTER(dbg, "firm.tr.finalization");
87 /* types must be visited before their entities */
88 type_walk(do_finalization, NULL, get_glob_type());