1 /* 2 * Copyright (c) 2000, 2008, 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 package sun.jvm.hotspot.types.basic; 26 27 import sun.jvm.hotspot.debugger.*; 28 import sun.jvm.hotspot.types.*; 29 30 /** A specialization of BasicField which represents a field containing 31 an oop value and which adds typechecked getValue() routines 32 returning OopHandles. */ 33 34 public class BasicOopField extends BasicField implements OopField { 35 36 BasicOopField(OopField oopf)37 public BasicOopField(OopField oopf) { 38 super(oopf); 39 } 40 BasicOopField(BasicTypeDataBase db, Type containingType, String name, Type type, boolean isStatic, long offset, Address staticFieldAddress)41 public BasicOopField(BasicTypeDataBase db, Type containingType, String name, Type type, 42 boolean isStatic, long offset, Address staticFieldAddress) { 43 super(db, containingType, name, type, isStatic, offset, staticFieldAddress); 44 45 if (!type.isOopType()) { 46 throw new WrongTypeException("Type of a BasicOopField must be an oop type"); 47 } 48 } 49 50 /** The field must be nonstatic and the type of the field must be a 51 Java oop, or a WrongTypeException will be thrown. */ getValue(Address addr)52 public OopHandle getValue(Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException { 53 return getOopHandle(addr); 54 } 55 56 /** The field must be static and the type of the field must be a 57 Java oop, or a WrongTypeException will be thrown. */ getValue()58 public OopHandle getValue() throws UnmappedAddressException, UnalignedAddressException, WrongTypeException { 59 return getOopHandle(); 60 } 61 } 62