1/* 2 * Copyright (c) 2001, 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 25package sun.jvm.hotspot.debugger.cdbg.basic; 26 27import sun.jvm.hotspot.debugger.*; 28import sun.jvm.hotspot.debugger.cdbg.*; 29 30public class BasicArrayType extends BasicType implements ArrayType { 31 private Type elementType; 32 private int length; 33 34 public BasicArrayType(String name, Type elementType, int sizeInBytes) { 35 this(name, elementType, sizeInBytes, 0, 0); 36 } 37 38 private BasicArrayType(String name, Type elementType, int sizeInBytes, int length, int cvAttributes) { 39 super(name, sizeInBytes, cvAttributes); 40 this.elementType = elementType; 41 this.length = length; 42 } 43 44 public ArrayType asArray() { return this; } 45 46 public Type getElementType() { return elementType; } 47 public int getLength() { return length; } 48 49 Type resolveTypes(BasicCDebugInfoDataBase db, ResolveListener listener) { 50 super.resolveTypes(db, listener); 51 elementType = db.resolveType(this, elementType, listener, "resolving array element type"); 52 // FIXME: need to figure out whether we have to align object sizes 53 // ourselves (see below) 54 if (!((BasicType) elementType).isLazy()) { 55 length = getSize() / elementType.getSize(); 56 } 57 return this; 58 } 59 60 public void iterateObject(Address a, ObjectVisitor v, FieldIdentifier f) { 61 // What kind of iteration are we doing? If the end user requested 62 // iteration over a given array at a given address, the field 63 // identifier will be null, and we should descend and iterate 64 // through the array. Otherwise, we are already iterating through 65 // an object, and it is up to the end user whether to descend into 66 // the embedded object. 67 68 if (f == null) { 69 v.enterType(this, a); 70 for (int i = 0; i < getLength(); i++) { 71 // FIXME: need to figure out whether we need to align object 72 // sizes ourselves (i.e., round up to doubleword size) or 73 // whether that reported in the debug info is already aligned 74 // (in Microsoft's compiler, I think the struct alignment is 75 // an option, so it's possible that there is nothing we are 76 // allowed to do here) 77 ((BasicType) getElementType()).iterateObject(a.addOffsetTo(i * getElementType().getSize()), 78 v, 79 new BasicIndexableFieldIdentifier(getElementType(), i)); 80 } 81 v.exitType(); 82 } else { 83 v.doArray(f, a); 84 } 85 } 86 87 protected Type createCVVariant(int cvAttributes) { 88 return new BasicArrayType(getName(), getElementType(), getSize(), getLength(), cvAttributes); 89 } 90 91 public void visit(TypeVisitor v) { 92 v.doArrayType(this); 93 } 94} 95