Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/runtime/StackValueCollection.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/StackValueCollection.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,54 @@ +/* + * Copyright 2001-2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.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)); } +}