| /* |
| * Copyright 2003-2010 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.controlflow; |
| |
| import com.intellij.psi.PsiDoWhileStatement; |
| import com.intellij.psi.PsiForStatement; |
| import com.intellij.psi.PsiStatement; |
| import com.intellij.psi.PsiWhileStatement; |
| 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 InfiniteLoopStatementInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "infinite.loop.statement.display.name"); |
| } |
| |
| @Override |
| public boolean isEnabledByDefault() { |
| return true; |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "infinite.loop.statement.problem.descriptor"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new InfiniteLoopStatementsVisitor(); |
| } |
| |
| private static class InfiniteLoopStatementsVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitForStatement( |
| @NotNull PsiForStatement statement) { |
| super.visitForStatement(statement); |
| checkStatement(statement); |
| } |
| |
| @Override |
| public void visitWhileStatement( |
| @NotNull PsiWhileStatement statement) { |
| super.visitWhileStatement(statement); |
| checkStatement(statement); |
| } |
| |
| @Override |
| public void visitDoWhileStatement( |
| @NotNull PsiDoWhileStatement statement) { |
| super.visitDoWhileStatement(statement); |
| checkStatement(statement); |
| } |
| |
| private void checkStatement(PsiStatement statement) { |
| if (ControlFlowUtils.statementMayCompleteNormally(statement)) { |
| return; |
| } |
| if (ControlFlowUtils.statementContainsReturn(statement)) { |
| return; |
| } |
| if (ControlFlowUtils.statementContainsSystemExit(statement)) { |
| return; |
| } |
| registerStatementError(statement); |
| } |
| } |
| } |