| /* |
| * Copyright 2003-2007 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.errorhandling; |
| |
| import com.intellij.psi.*; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.psiutils.ControlFlowUtils; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class InstanceofCatchParameterInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "instanceof.catch.parameter.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "instanceof.catch.parameter.problem.descriptor"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new InstanceofCatchParameterVisitor(); |
| } |
| |
| private static class InstanceofCatchParameterVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitInstanceOfExpression( |
| @NotNull PsiInstanceOfExpression exp) { |
| super.visitInstanceOfExpression(exp); |
| if (!ControlFlowUtils.isInCatchBlock(exp)) { |
| return; |
| } |
| final PsiExpression operand = exp.getOperand(); |
| if (!(operand instanceof PsiReferenceExpression)) { |
| return; |
| } |
| final PsiReferenceExpression ref = (PsiReferenceExpression)operand; |
| final PsiElement referent = ref.resolve(); |
| if (!(referent instanceof PsiParameter)) { |
| return; |
| } |
| final PsiParameter parameter = (PsiParameter)referent; |
| if (!(parameter.getDeclarationScope() instanceof PsiCatchSection)) { |
| return; |
| } |
| registerError(exp); |
| } |
| } |
| } |