| /* |
| * Copyright 2003-2011 Dave Griffith, Bas Leijdekkers |
| * |
| * 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.abstraction; |
| |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class InstanceofThisInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("instanceof.check.for.this.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message("instanceof.check.for.this.problem.descriptor"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new InstanceofThisVisitor(); |
| } |
| |
| private static class InstanceofThisVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitThisExpression(@NotNull PsiThisExpression thisValue) { |
| super.visitThisExpression(thisValue); |
| if (thisValue.getQualifier() != null) { |
| return; |
| } |
| final PsiElement parent = |
| PsiTreeUtil.skipParentsOfType(thisValue, PsiParenthesizedExpression.class, |
| PsiConditionalExpression.class, PsiTypeCastExpression.class); |
| if (!(parent instanceof PsiInstanceOfExpression)) { |
| return; |
| } |
| registerError(thisValue); |
| } |
| } |
| } |