| /* |
| * Copyright (c) 2001, 2003, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| package sun.jvm.hotspot.runtime; |
| |
| import java.util.*; |
| |
| import sun.jvm.hotspot.debugger.*; |
| |
| public class StackValueCollection { |
| private List list; |
| |
| public StackValueCollection() { list = new ArrayList(); } |
| public StackValueCollection(int length) { list = new ArrayList(length); } |
| |
| public void add(StackValue val) { list.add(val); } |
| public int size() { return list.size(); } |
| public boolean isEmpty() { return (size() == 0); } |
| public StackValue get(int i) { return (StackValue) list.get(i); } |
| |
| // Get typed locals/expressions |
| // FIXME: must figure out whether word swapping is necessary on x86 |
| public boolean booleanAt(int slot) { return (int)get(slot).getInteger() != 0; } |
| public byte byteAt(int slot) { return (byte) get(slot).getInteger(); } |
| public char charAt(int slot) { return (char) get(slot).getInteger(); } |
| public short shortAt(int slot) { return (short) get(slot).getInteger(); } |
| public int intAt(int slot) { return (int) get(slot).getInteger(); } |
| public long longAt(int slot) { return VM.getVM().buildLongFromIntsPD((int) get(slot).getInteger(), |
| (int) get(slot+1).getInteger()); } |
| public OopHandle oopHandleAt(int slot) { return get(slot).getObject(); } |
| public float floatAt(int slot) { return Float.intBitsToFloat(intAt(slot)); } |
| public double doubleAt(int slot) { return Double.longBitsToDouble(longAt(slot)); } |
| } |
