content: /*******************************************************************************
   * Copyright (c) 2000, 2007 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.dom.fragments;
  
  import org.eclipse.core.runtime.Assert;
  import org.eclipse.text.edits.TextEditGroup;
  import org.eclipse.wst.jsdt.core.dom.ASTNode;
  import org.eclipse.wst.jsdt.core.dom.rewrite.ASTRewrite;
  import org.eclipse.wst.jsdt.internal.corext.dom.JdtASTMatcher;
  
  class SimpleFragment extends ASTFragment {
  	private final ASTNode fNode;
  
  	SimpleFragment(ASTNode node) {
  		Assert.isNotNull(node);
  		fNode= node;
  	}
  
  	public IASTFragment[] getMatchingFragmentsWithNode(ASTNode node) {
  		if (! JdtASTMatcher.doNodesMatch(getAssociatedNode(), node))
  			return new IASTFragment[0];
  
  		IASTFragment match= ASTFragmentFactory.createFragmentForFullSubtree(node);
  		Assert.isTrue(match.matches(this) || this.matches(match));
  		return new IASTFragment[] { match };
  	}
  
  	public boolean matches(IASTFragment other) {
  		return other.getClass().equals(getClass()) && JdtASTMatcher.doNodesMatch(other.getAssociatedNode(), getAssociatedNode());
  	}
  
  	public IASTFragment[] getSubFragmentsMatching(IASTFragment toMatch) {
  		return ASTMatchingFragmentFinder.findMatchingFragments(getAssociatedNode(), (ASTFragment) toMatch);
  	}
  
  	public int getStartPosition() {
  		return fNode.getStartPosition();
  	}
  
  	public int getLength() {
  		return fNode.getLength();
  	}
  
  	public ASTNode getAssociatedNode() {
  		return fNode;
  	}
  	
  	public void replace(ASTRewrite rewrite, ASTNode replacement, TextEditGroup textEditGroup) {
  		rewrite.replace(fNode, replacement, textEditGroup);
  	}
  
  	public int hashCode() {
  		return fNode.hashCode();
  	}
  
  	public boolean equals(Object obj) {
  		if (this == obj)
  			return true;
  		if (obj == null)
  			return false;
  		if (getClass() != obj.getClass())
  			return false;
  		SimpleFragment other= (SimpleFragment) obj;
  		return fNode.equals(other.fNode);
  	}
  	
  }
  