| /* |
| * Copyright 2000-2014 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.siyeh.ig.javabeans; |
| |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PropertyUtil; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.psiutils.EquivalenceChecker; |
| import com.siyeh.ig.psiutils.ParenthesesUtils; |
| import org.jetbrains.annotations.Nls; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author Bas Leijdekkers |
| */ |
| public class PropertyValueSetToItselfInspection extends BaseInspection { |
| |
| @Nls |
| @NotNull |
| @Override |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("property.value.set.to.itself.display.name"); |
| } |
| |
| @NotNull |
| @Override |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message("property.value.set.to.itself.display.name"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new PropertyValueSetToItselfVisitor(); |
| } |
| |
| private static class PropertyValueSetToItselfVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitMethodCallExpression(PsiMethodCallExpression expression) { |
| super.visitMethodCallExpression(expression); |
| final PsiExpressionList argumentList1 = expression.getArgumentList(); |
| final PsiExpression[] arguments1 = argumentList1.getExpressions(); |
| if (arguments1.length != 1) { |
| return; |
| } |
| final PsiExpression argument = arguments1[0]; |
| if (!(argument instanceof PsiMethodCallExpression)) { |
| return; |
| } |
| final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression)argument; |
| final PsiExpressionList argumentList2 = methodCallExpression.getArgumentList(); |
| final PsiExpression[] arguments2 = argumentList2.getExpressions(); |
| if (arguments2.length != 0) { |
| return; |
| } |
| final PsiReferenceExpression methodExpression1 = expression.getMethodExpression(); |
| final PsiExpression qualifierExpression1 = ParenthesesUtils.stripParentheses(methodExpression1.getQualifierExpression()); |
| final PsiReferenceExpression methodExpression2 = methodCallExpression.getMethodExpression(); |
| final PsiExpression qualifierExpression2 = ParenthesesUtils.stripParentheses(methodExpression2.getQualifierExpression()); |
| if (qualifierExpression1 instanceof PsiReferenceExpression && qualifierExpression2 instanceof PsiReferenceExpression) { |
| if (!EquivalenceChecker.expressionsAreEquivalent(qualifierExpression1, qualifierExpression2)) { |
| return; |
| } |
| } |
| else if((qualifierExpression1 != null && |
| !(qualifierExpression1 instanceof PsiThisExpression) && |
| !(qualifierExpression1 instanceof PsiSuperExpression)) |
| || |
| qualifierExpression2 != null && |
| !(qualifierExpression2 instanceof PsiThisExpression) && |
| !(qualifierExpression2 instanceof PsiSuperExpression)) { |
| return; |
| } |
| final PsiMethod method1 = expression.resolveMethod(); |
| final PsiField fieldOfSetter = PropertyUtil.getFieldOfSetter(method1); |
| if (fieldOfSetter == null) { |
| return; |
| } |
| final PsiMethod method2 = methodCallExpression.resolveMethod(); |
| final PsiField fieldOfGetter = PropertyUtil.getFieldOfGetter(method2); |
| if (!fieldOfSetter.equals(fieldOfGetter)) { |
| return; |
| } |
| registerMethodCallError(expression); |
| } |
| } |
| } |