/*
* 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.Enumeration;
class SpaceEffGraphEdgeList implements Enumeration<SpaceEffGraphEdgeList> {
SpaceEffGraphEdge _edge;
SpaceEffGraphEdgeList _next;
SpaceEffGraphEdgeList _prev;
@Override
public boolean hasMoreElements() {
return _next != null;
}
@Override
public SpaceEffGraphEdgeList nextElement() {
SpaceEffGraphEdgeList tmp = _next;
_next = _next._next;
return tmp;
}
public SpaceEffGraphEdge edge() {
return _edge;
}
public SpaceEffGraphEdgeList next() {
return _next;
}
public SpaceEffGraphEdgeList prev() {
return _prev;
}
public boolean inGraphEdgeList(SpaceEffGraphEdge edge) {
SpaceEffGraphEdgeList n = this;
while (n != null) {
if (n._edge == edge) {
return true;
}
n = n._next;
}
return false;
}
}