| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.refactoring.safeDelete.usageInfo; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.TypeConversionUtil; |
| import com.intellij.util.ArrayUtilRt; |
| import com.intellij.util.IncorrectOperationException; |
| |
| /** |
| * @author ven |
| */ |
| public class SafeDeleteExtendsClassUsageInfo extends SafeDeleteReferenceUsageInfo { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.refactoring.safeDelete.usageInfo.SafeDeleteExtendsClassUsageInfo"); |
| private final PsiClass myExtendingClass; |
| private final PsiSubstitutor mySubstitutor; |
| |
| public SafeDeleteExtendsClassUsageInfo(final PsiJavaCodeReferenceElement reference, PsiClass refClass, PsiClass extendingClass) { |
| super(reference, refClass, true); |
| myExtendingClass = extendingClass; |
| mySubstitutor = TypeConversionUtil.getClassSubstitutor(refClass, myExtendingClass, PsiSubstitutor.EMPTY); |
| LOG.assertTrue(mySubstitutor != null); |
| } |
| |
| public PsiClass getReferencedElement() { |
| return (PsiClass)super.getReferencedElement(); |
| } |
| |
| public void deleteElement() throws IncorrectOperationException { |
| final PsiElement parent = getElement().getParent(); |
| LOG.assertTrue(parent instanceof PsiReferenceList); |
| final PsiClass refClass = getReferencedElement(); |
| final PsiElementFactory elementFactory = JavaPsiFacade.getInstance(refClass.getProject()).getElementFactory(); |
| |
| final PsiReferenceList extendsList = refClass.getExtendsList(); |
| final PsiReferenceList extendingImplementsList = myExtendingClass.getImplementsList(); |
| if (extendsList != null) { |
| final PsiClassType[] referenceTypes = extendsList.getReferencedTypes(); |
| final PsiReferenceList listToAddExtends = refClass.isInterface() == myExtendingClass.isInterface() || myExtendingClass instanceof PsiTypeParameter ? myExtendingClass.getExtendsList() : extendingImplementsList; |
| final PsiClassType[] existingRefTypes = listToAddExtends.getReferencedTypes(); |
| for (PsiClassType referenceType : referenceTypes) { |
| if (ArrayUtilRt.find(existingRefTypes, referenceType) > -1) continue; |
| listToAddExtends.add(elementFactory.createReferenceElementByType((PsiClassType)mySubstitutor.substitute(referenceType))); |
| } |
| } |
| |
| final PsiReferenceList implementsList = refClass.getImplementsList(); |
| if (implementsList != null) { |
| final PsiClassType[] existingRefTypes = extendingImplementsList.getReferencedTypes(); |
| PsiClassType[] referenceTypes = implementsList.getReferencedTypes(); |
| for (PsiClassType referenceType : referenceTypes) { |
| if (ArrayUtilRt.find(existingRefTypes, referenceType) > -1) continue; |
| extendingImplementsList.add(elementFactory.createReferenceElementByType((PsiClassType)mySubstitutor.substitute(referenceType))); |
| } |
| } |
| |
| getElement().delete(); |
| } |
| |
| public boolean isSafeDelete() { |
| if (getElement() == null) return false; |
| final PsiClass refClass = getReferencedElement(); |
| if (refClass.getExtendsListTypes().length > 0) { |
| final PsiReferenceList listToAddExtends = refClass.isInterface() == myExtendingClass.isInterface() ? myExtendingClass.getExtendsList() : |
| myExtendingClass.getImplementsList(); |
| if (listToAddExtends == null) return false; |
| } |
| |
| if (refClass.getImplementsListTypes().length > 0) { |
| if (myExtendingClass.getImplementsList() == null) return false; |
| } |
| |
| return true; |
| } |
| } |