/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.jikesrvm.compilers.opt.util;
import java.util.Iterator;
import org.jikesrvm.util.LinkedListRVM;
public final class Queue<T> implements Iterable<T> {
private final LinkedListRVM<T> elements = new LinkedListRVM<T>();
public Queue() { }
public Queue(T e) {
elements.add(e);
}
public T insert(T e) {
elements.add(e); // Insert at tail
return e;
}
public T remove() {
return elements.remove(0); // Remove from head
}
public boolean isEmpty() {
return elements.isEmpty();
}
@Override
public Iterator<T> iterator() {
return elements.iterator();
}
}