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src/share/vm/oops/klassOop.hpp@c89f86385056 (annotated)

src/share/vm/oops/klassOop.hpp

Fri, 20 Mar 2009 23:19:36 -0700

author

jrose

date

Fri, 20 Mar 2009 23:19:36 -0700

changeset 1100

c89f86385056

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6814659: separable cleanups and subroutines for 6655638
Summary: preparatory but separable changes for method handles
Reviewed-by: kvn, never

duke@435	1	/*
duke@435	2	* Copyright 1997-2002 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// A klassOop is the C++ equivalent of a Java class.
duke@435	26	// Part of a klassOopDesc is a Klass which handle the
duke@435	27	// dispatching for the C++ method calls.
duke@435	28
duke@435	29	// klassOop object layout:
duke@435	30	// [header ]
duke@435	31	// [klass_field]
duke@435	32	// [KLASS ]
duke@435	33
duke@435	34	class klassOopDesc : public oopDesc {
duke@435	35	public:
duke@435	36	// size operation
duke@435	37	static int header_size() { return sizeof(klassOopDesc)/HeapWordSize; }
duke@435	38
duke@435	39	// support for code generation
duke@435	40	static int klass_part_offset_in_bytes() { return sizeof(klassOopDesc); }
duke@435	41
duke@435	42	// returns the Klass part containing dispatching behavior
duke@435	43	Klass* klass_part() { return (Klass*)((address)this + klass_part_offset_in_bytes()); }
duke@435	44	};