| /* |
| * 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.psi.*; |
| import com.intellij.refactoring.util.RefactoringUtil; |
| import com.intellij.util.IncorrectOperationException; |
| |
| /** |
| * @author dsl |
| */ |
| public class SafeDeleteFieldWriteReference extends SafeDeleteReferenceUsageInfo { |
| private final PsiAssignmentExpression myExpression; |
| |
| public SafeDeleteFieldWriteReference(PsiAssignmentExpression expr, PsiField referencedElement) { |
| super(expr, referencedElement, safeRemoveRHS(expr)); |
| myExpression = expr; |
| } |
| |
| private static boolean safeRemoveRHS(PsiAssignmentExpression expression) { |
| final PsiExpression rExpression = expression.getRExpression(); |
| final PsiElement parent = expression.getParent(); |
| return RefactoringUtil.verifySafeCopyExpression(rExpression) == RefactoringUtil.EXPR_COPY_SAFE |
| && parent instanceof PsiExpressionStatement |
| && ((PsiExpressionStatement) parent).getExpression() == expression; |
| } |
| |
| public void deleteElement() throws IncorrectOperationException { |
| myExpression.getParent().delete(); |
| } |
| |
| } |