/*
 * 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          <afuchs@cs.umd.edu>
 *  Avik Chaudhuri      <avik@cs.umd.edu>
 *
 * 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 org.scandroid.flow.types.FlowType;

@SuppressWarnings("rawtypes")
public class DomainElement {
  // the code element in question
  // alternate framing: the /current/ fact about the element
  public final CodeElement codeElement;
  // the taint (probably from some other point in the code) that affects the
  // code element in question
  // alternate framing: the /initial/ fact about the element
  public final FlowType taintSource;

  public DomainElement(CodeElement codeElement, FlowType taintSource) {
    this.codeElement = codeElement;
    this.taintSource = taintSource;
  }
  /*
  @Override
  public boolean equals(Object other) {
  	if (other == null || !(other instanceof DomainElement))
  		return false;
  	DomainElement otherDE = (DomainElement) other;
  	if (taintSource != null) {
  		return codeElement.equals(otherDE.codeElement)
  				&& taintSource.equals(otherDE.taintSource);
  	}
  	return codeElement.equals(otherDE.codeElement)
  			&& otherDE.taintSource == null;
  }

  @Override
  public int hashCode() {
  	if (taintSource == null)
  		return codeElement.hashCode();
  	return codeElement.hashCode() ^ taintSource.hashCode();
  }
  */

  @Override
  public String toString() {
    return codeElement.toString() + ", " + taintSource;
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((codeElement == null) ? 0 : codeElement.hashCode());
    result = prime * result + ((taintSource == null) ? 0 : taintSource.hashCode());
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) return true;
    if (obj == null) return false;
    if (getClass() != obj.getClass()) return false;
    DomainElement other = (DomainElement) obj;
    if (codeElement == null) {
      if (other.codeElement != null) return false;
    } else if (!codeElement.equals(other.codeElement)) return false;
    if (taintSource == null) {
      if (other.taintSource != null) return false;
    } else if (!taintSource.equals(other.taintSource)) return false;
    return true;
  }
}
