| /* |
| * 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.bugs; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.JavaTokenType; |
| import com.intellij.psi.PsiExpression; |
| import com.intellij.psi.PsiPolyadicExpression; |
| import com.intellij.psi.PsiType; |
| import com.intellij.psi.tree.IElementType; |
| 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.NotNull; |
| |
| public class NonShortCircuitBooleanInspection extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getID() { |
| return "NonShortCircuitBooleanExpression"; |
| } |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("non.short.circuit.boolean.expression.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message("non.short.circuit.boolean.expression.problem.descriptor"); |
| } |
| |
| @Override |
| public InspectionGadgetsFix buildFix(Object... infos) { |
| return new NonShortCircuitBooleanFix(); |
| } |
| |
| private static class NonShortCircuitBooleanFix |
| extends InspectionGadgetsFix { |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message("non.short.circuit.boolean.expression.replace.quickfix"); |
| } |
| |
| @NotNull |
| @Override |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) throws IncorrectOperationException { |
| final PsiPolyadicExpression expression = (PsiPolyadicExpression)descriptor.getPsiElement(); |
| final IElementType tokenType = expression.getOperationTokenType(); |
| final String operandText = getShortCircuitOperand(tokenType); |
| final PsiExpression[] operands = expression.getOperands(); |
| final StringBuilder newExpression = new StringBuilder(); |
| for (PsiExpression operand : operands) { |
| if (newExpression.length() != 0) { |
| newExpression.append(operandText); |
| } |
| newExpression.append(operand.getText()); |
| } |
| PsiReplacementUtil.replaceExpression(expression, newExpression.toString()); |
| } |
| |
| private static String getShortCircuitOperand(IElementType tokenType) { |
| if (tokenType.equals(JavaTokenType.AND)) { |
| return "&&"; |
| } |
| else { |
| return "||"; |
| } |
| } |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new NonShortCircuitBooleanVisitor(); |
| } |
| |
| private static class NonShortCircuitBooleanVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitPolyadicExpression(PsiPolyadicExpression expression) { |
| super.visitPolyadicExpression(expression); |
| final IElementType tokenType = expression.getOperationTokenType(); |
| if (!tokenType.equals(JavaTokenType.AND) && !tokenType.equals(JavaTokenType.OR)) { |
| return; |
| } |
| final PsiType type = expression.getType(); |
| if (type == null) { |
| return; |
| } |
| if (!type.equals(PsiType.BOOLEAN)) { |
| return; |
| } |
| registerError(expression); |
| } |
| } |
| } |