Mercurial > hg > truffle
comparison src/share/vm/classfile/defaultMethods.hpp @ 6934:4735d2c84362
7200776: Implement default methods in interfaces
Summary: Add generic type analysis and default method selection algorithms
Reviewed-by: coleenp, acorn
author | kamg |
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date | Thu, 11 Oct 2012 12:25:42 -0400 |
parents | |
children | 36b97be47bde |
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6921:a1b8cf9cf970 | 6934:4735d2c84362 |
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1 /* | |
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef SHARE_VM_CLASSFILE_DEFAULTMETHODS_HPP | |
26 #define SHARE_VM_CLASSFILE_DEFAULTMETHODS_HPP | |
27 | |
28 #include "runtime/handles.hpp" | |
29 #include "utilities/growableArray.hpp" | |
30 #include "utilities/exceptions.hpp" | |
31 | |
32 class InstanceKlass; | |
33 class Symbol; | |
34 class Method; | |
35 | |
36 class DefaultMethods : AllStatic { | |
37 public: | |
38 | |
39 // Analyzes class and determines which default methods are inherited | |
40 // from interfaces (and has no other implementation). For each method | |
41 // (and each different signature the method could have), create an | |
42 // "overpass" method that is an instance method that redirects to the | |
43 // default method. Overpass methods are added to the methods lists for | |
44 // the class. | |
45 static void generate_default_methods( | |
46 InstanceKlass* klass, GrowableArray<Method*>* mirandas, TRAPS); | |
47 | |
48 | |
49 // Called during linking when an invokespecial to an direct interface | |
50 // method is found. Selects and returns a method if there is a unique | |
51 // default method in the 'super_iface' part of the hierarchy which is | |
52 // also a candidate default for 'this_klass'. Otherwise throws an AME. | |
53 static Method* find_super_default( | |
54 Klass* this_klass, Klass* super_iface, | |
55 Symbol* method_name, Symbol* method_sig, TRAPS); | |
56 }; | |
57 | |
58 #endif // SHARE_VM_CLASSFILE_DEFAULTMETHODS_HPP |