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/*
 * 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.
 *
 * This file is a derivative of code released under the terms listed below.
 *
 */
/*
 *
 * Copyright (c) 2009-2012,
 *
 *  Adam Fuchs          
 *  Avik Chaudhuri      
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. The names of the contributors may not be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 *
 */

package org.scandroid.domain;

import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
import com.ibm.wala.types.FieldReference;

public class FieldElement extends CodeElement {
  private final FieldReference fieldRef;
  private final InstanceKey object;
  //    private TypeReference object;

  public FieldElement(InstanceKey object, FieldReference fieldRef) {
    this.fieldRef = fieldRef;
    this.object = object;
  }
  //    public FieldElement(TypeReference object, String fieldname)
  //    {
  //        this.fieldname = fieldname;
  //        this.object = object;
  //    }

  public InstanceKey getIK() {
    return object;
  }

  public FieldReference getRef() {
    return fieldRef;
  }

  @Override
  public boolean equals(Object other) {
    if (other != null && other instanceof FieldElement) {
      FieldElement otherFE = (FieldElement) other;
      return object.equals(otherFE.object) && fieldRef.equals(otherFE.fieldRef);
    }
    return false;
  }

  @Override
  public int hashCode() {
    return object.hashCode() * fieldRef.hashCode();
  }

  @Override
  public String toString() {
    return "FieldElement(" + fieldRef.getSignature() + ',' + object + ')';
  }
}