/*******************************************************************************
* Copyright (c) 2005, 2011 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
*******************************************************************************/
package org.eclipse.jdt.internal.debug.eval.ast.instructions;
import org.eclipse.core.runtime.CoreException;
/**
* Duplicate the top element of the stack
*
* Element ...
*
* ->
*
* Element Element ...
*
*/
public class Dup extends SimpleInstruction {
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jdt.internal.debug.eval.ast.instructions.Instruction#execute
* ()
*/
@Override
public void execute() throws CoreException {
Object element = pop();
push(element);
push(element);
}
@Override
public String toString() {
return "Dup"; //$NON-NLS-1$
}
}