/*
* Author: C.Williams
*
* Copyright (c) 2004 RubyPeople.
*
* This file is part of the Ruby Development Tools (RDT) plugin for eclipse. You
* can get copy of the GPL along with further information about RubyPeople and
* third party software bundled with RDT in the file
* org.rubypeople.rdt.core_x.x.x/RDT.license or otherwise at
* http://www.rubypeople.org/RDT.license.
*
* RDT is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* RDT 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 for more details.
*
* You should have received a copy of the GNU General Public License along with
* RDT; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA
*/
package org.rubypeople.rdt.internal.core;
import java.util.ArrayList;
import java.util.List;
import org.rubypeople.rdt.core.IRubyElement;
/**
* @author Chris
*
*/
public class HandleStack {
private List stack = new ArrayList();
public HandleStack() {}
public RubyElement pop() {
if (stack.isEmpty()) return null;
return (RubyElement) stack.remove(stack.size() - 1);
}
public void push(IRubyElement element) {
stack.add(element);
}
public RubyElement peek() {
if (stack.isEmpty()) return null;
return (RubyElement) stack.get(stack.size() - 1);
}
}