| /* |
| * Copyright 2003-2009 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.codeInspection.ProblemDescriptor; |
| import com.intellij.codeInspection.ui.SingleCheckboxOptionsPanel; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.util.IncorrectOperationException; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.InspectionGadgetsFix; |
| import com.siyeh.ig.PsiReplacementUtil; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| import javax.swing.*; |
| |
| public class ForLoopReplaceableByWhileInspection extends BaseInspection { |
| |
| /** |
| * @noinspection PublicField |
| */ |
| public boolean m_ignoreLoopsWithoutConditions = false; |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "for.loop.replaceable.by.while.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String getID() { |
| return "ForLoopReplaceableByWhile"; |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "for.loop.replaceable.by.while.problem.descriptor"); |
| } |
| |
| @Override |
| public JComponent createOptionsPanel() { |
| return new SingleCheckboxOptionsPanel(InspectionGadgetsBundle.message( |
| "for.loop.replaceable.by.while.ignore.option"), |
| this, "m_ignoreLoopsWithoutConditions"); |
| } |
| |
| @Override |
| public InspectionGadgetsFix buildFix(Object... infos) { |
| return new ReplaceForByWhileFix(); |
| } |
| |
| private static class ReplaceForByWhileFix extends InspectionGadgetsFix { |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message( |
| "for.loop.replaceable.by.while.replace.quickfix"); |
| } |
| |
| @NotNull |
| @Override |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) |
| throws IncorrectOperationException { |
| final PsiElement forKeywordElement = descriptor.getPsiElement(); |
| final PsiForStatement forStatement = |
| (PsiForStatement)forKeywordElement.getParent(); |
| assert forStatement != null; |
| final PsiExpression condition = forStatement.getCondition(); |
| final PsiStatement body = forStatement.getBody(); |
| final String bodyText; |
| if (body == null) { |
| bodyText = ""; |
| } |
| else { |
| bodyText = body.getText(); |
| } |
| @NonNls final String whileStatement; |
| if (condition == null) { |
| whileStatement = "while(true)" + bodyText; |
| } |
| else { |
| whileStatement = "while(" + condition.getText() + ')' + |
| bodyText; |
| } |
| PsiReplacementUtil.replaceStatement(forStatement, whileStatement); |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new ForLoopReplaceableByWhileVisitor(); |
| } |
| |
| private class ForLoopReplaceableByWhileVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitForStatement( |
| @NotNull PsiForStatement statement) { |
| super.visitForStatement(statement); |
| final PsiStatement initialization = statement.getInitialization(); |
| if (initialization != null && |
| !(initialization instanceof PsiEmptyStatement)) { |
| return; |
| } |
| final PsiStatement update = statement.getUpdate(); |
| if (update != null && !(update instanceof PsiEmptyStatement)) { |
| return; |
| } |
| if (m_ignoreLoopsWithoutConditions) { |
| final PsiExpression condition = statement.getCondition(); |
| if (condition == null) { |
| return; |
| } |
| final String conditionText = condition.getText(); |
| if (PsiKeyword.TRUE.equals(conditionText)) { |
| return; |
| } |
| } |
| registerStatementError(statement); |
| } |
| } |
| } |