/*******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* 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 com.ibm.wala.ipa.callgraph;
/**
* A placeholder for strong typing.
*/
public interface ContextItem {
public class Value<T> implements ContextItem {
private final T v;
public Value(T v) {
this.v = v;
}
public T getValue() {
return v;
}
public static <T> Value make(T v) {
return new Value<T>(v);
}
@Override
public int hashCode() {
return 31 + ((v == null) ? 0 : v.hashCode());
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Value other = (Value) obj;
if (v == null) {
if (other.v != null)
return false;
} else if (!v.equals(other.v))
return false;
return true;
}
}
}