| /******************************************************************************* |
| * Copyright (c) 2005, 2009 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Bjorn Freeman-Benson - initial API and implementation |
| * Pawel Piech (Wind River) - ported PDA Virtual Machine to Java (Bug 261400) |
| *******************************************************************************/ |
| package org.eclipse.debug.examples.core.pda.model; |
| |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.model.IValue; |
| import org.eclipse.debug.core.model.IVariable; |
| |
| /** |
| * A value on the data stack |
| */ |
| public class PDAStackValue extends PDADebugElement implements IValue { |
| |
| final private PDAThread fThread; |
| final private String fValue; |
| final private int fIndex; |
| |
| /** |
| * Constructs a value that appears on the data stack |
| * |
| * @param target debug target |
| * @param value value on the stack |
| * @param index index on the stack |
| */ |
| public PDAStackValue(PDAThread thread, String value, int index) { |
| super(thread.getDebugTarget()); |
| fThread = thread; |
| fValue = value; |
| fIndex = index; |
| } |
| |
| public PDAThread getThread() { |
| return fThread; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IValue#getValueString() |
| */ |
| public String getValueString() throws DebugException { |
| return fValue; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IValue#isAllocated() |
| */ |
| public boolean isAllocated() throws DebugException { |
| return true; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IValue#getVariables() |
| */ |
| public IVariable[] getVariables() throws DebugException { |
| return new IVariable[0]; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IValue#hasVariables() |
| */ |
| public boolean hasVariables() throws DebugException { |
| return false; |
| } |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IValue#getReferenceTypeName() |
| */ |
| public String getReferenceTypeName() throws DebugException { |
| return null; |
| } |
| /* |
| * (non-Javadoc) |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| public boolean equals(Object obj) { |
| return obj instanceof PDAStackValue && |
| ((PDAStackValue)obj).fValue.equals(fValue) && |
| ((PDAStackValue)obj).fIndex == fIndex; |
| } |
| /* |
| * (non-Javadoc) |
| * @see java.lang.Object#hashCode() |
| */ |
| public int hashCode() { |
| return super.hashCode() + fIndex; |
| } |
| } |