case-study/jdt-before/core extension/org/eclipse/jdt/internal/corext/dom/JdtASTMatcher.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.corext.dom;
  12
  13 import org.eclipse.core.runtime.Assert;
  14
  15 import org.eclipse.jdt.core.dom.ASTMatcher;
  16 import org.eclipse.jdt.core.dom.ASTNode;
  17 import org.eclipse.jdt.core.dom.IBinding;
  18 import org.eclipse.jdt.core.dom.SimpleName;
  19
  20 public class JdtASTMatcher extends ASTMatcher {
  21
  22         @Override
  23         public boolean match(SimpleName node, Object other) {
  24                 boolean isomorphic= super.match(node, other);
  25                 if (! isomorphic || !(other instanceof SimpleName))
  26                         return false;
  27                 SimpleName name= (SimpleName)other;
  28                 IBinding nodeBinding= node.resolveBinding();
  29                 IBinding otherBinding= name.resolveBinding();
  30                 if (nodeBinding == null) {
  31                         if (otherBinding != null) {
  32                                 return false;
  33                         }
  34                 } else {
  35                         if (nodeBinding != otherBinding) {
  36                                 return false;
  37                         }
  38                 }
  39                 if (node.resolveTypeBinding() != name.resolveTypeBinding())
  40                         return false;
  41                 return true;
  42         }
  43
  44         public static boolean doNodesMatch(ASTNode one, ASTNode other) {
  45                 Assert.isNotNull(one);
  46                 Assert.isNotNull(other);
  47
  48                 return one.subtreeMatch(new JdtASTMatcher(), other);
  49         }
  50 }