java/java-impl/src/com/intellij/refactoring/util/classMembers/DependentMembersCollector.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.refactoring.util.classMembers;
  17
  18 import com.intellij.psi.*;
  19 import com.intellij.refactoring.classMembers.DependentMembersCollectorBase;
  20
  21 /**
  22 * @author max
  23 */
  24 public class DependentMembersCollector extends DependentMembersCollectorBase<PsiMember, PsiClass> {
  25   public DependentMembersCollector(PsiClass clazz, PsiClass superClass) {
  26     super(clazz, superClass);
  27   }
  28
  29   public void collect(PsiMember member) {
  30     member.accept(getVisitor());
  31   }
  32
  33   private PsiElementVisitor getVisitor() {
  34     return new ClassMemberReferencesVisitor(getClazz()) {
  35       protected void visitClassMemberReferenceElement(PsiMember classMember, PsiJavaCodeReferenceElement classMemberReference) {
  36         if (!existsInSuperClass(classMember)) {
  37           myCollection.add(classMember);
  38         }
  39       }
  40     };
  41   }
  42
  43   private boolean existsInSuperClass(PsiMember classMember) {
  44     if (getSuperClass() == null) return false;
  45     if (!(classMember instanceof PsiMethod)) return false;
  46     final PsiMethod method = ((PsiMethod)classMember);
  47     final PsiMethod methodBySignature = (getSuperClass()).findMethodBySignature(method, true);
  48     return methodBySignature != null;
  49   }
  50 }