Mercurial > hg > truffle
annotate src/share/vm/oops/klassOop.hpp @ 2137:ffd725ff6943
Merge
author | johnc |
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date | Thu, 13 Jan 2011 17:19:21 -0800 |
parents | f95d63e2154a |
children | c7f3d0b4570f |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OOPS_KLASSOOP_HPP |
26 #define SHARE_VM_OOPS_KLASSOOP_HPP | |
27 | |
28 #include "oops/oop.hpp" | |
29 | |
0 | 30 // A klassOop is the C++ equivalent of a Java class. |
31 // Part of a klassOopDesc is a Klass which handle the | |
32 // dispatching for the C++ method calls. | |
33 | |
34 // klassOop object layout: | |
35 // [header ] | |
36 // [klass_field] | |
37 // [KLASS ] | |
38 | |
39 class klassOopDesc : public oopDesc { | |
40 public: | |
41 // size operation | |
42 static int header_size() { return sizeof(klassOopDesc)/HeapWordSize; } | |
43 | |
44 // support for code generation | |
45 static int klass_part_offset_in_bytes() { return sizeof(klassOopDesc); } | |
46 | |
47 // returns the Klass part containing dispatching behavior | |
48 Klass* klass_part() { return (Klass*)((address)this + klass_part_offset_in_bytes()); } | |
49 }; | |
1972 | 50 |
51 #endif // SHARE_VM_OOPS_KLASSOOP_HPP |