content: /*******************************************************************************
   * Copyright (c) 2000, 2008 IBM Corporation and others.
   * 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 org.eclipse.wst.jsdt.internal.corext.refactoring.typeconstraints2;
  
  import org.eclipse.core.runtime.Assert;
  import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.typeconstraints.CompilationUnitRange;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.typeconstraints.types.TType;
  
  /**
   * A TypeVariable is a ConstraintVariable which stands for a
   * single type reference (in source).
   */
  public final class TypeVariable2 extends ConstraintVariable2 implements ITypeConstraintVariable {
  
  	private final CompilationUnitRange fRange;
  
  	public TypeVariable2(TType type, CompilationUnitRange range) {
  		super(type);
  		Assert.isNotNull(range);
  		fRange= range;
  	}
  	
  	public CompilationUnitRange getRange() {
  		return fRange;
  	}
  	
  	/*
  	 * @see java.lang.Object#hashCode()
  	 */
  	public int hashCode() {
  		return getRange().hashCode() ^ getType().hashCode();
  	}
  	
  	/*
  	 * @see java.lang.Object#equals(java.lang.Object)
  	 */
  	public boolean equals(Object other) {
  		//TODO: unique per construction?  //return this == other;
  		if (this == other)
  			return true;
  		if (other.getClass() != TypeVariable2.class)
  			return false;
  		
  		TypeVariable2 otherTypeVariable= (TypeVariable2) other;
  		return getRange().equals(otherTypeVariable.getRange())
  				&& getType() == otherTypeVariable.getType();
  	}
  
  	public void setCompilationUnit(IJavaScriptUnit unit) {
  		throw new UnsupportedOperationException();
  	}
  
  	public IJavaScriptUnit getCompilationUnit() {
  		return fRange.getCompilationUnit();
  	}
  	
  	public String toString() {
  		return super.toString() + " [" + fRange.getSourceRange().getOffset() + '+' + fRange.getSourceRange().getLength() + ']'; //$NON-NLS-1$
  	}
  }
  