| /* |
| * Copyright 2003-2014 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.fixes; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.JavaTokenType; |
| import com.intellij.psi.PsiBinaryExpression; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiExpression; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.psi.util.PsiUtil; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.InspectionGadgetsFix; |
| import com.siyeh.ig.PsiReplacementUtil; |
| import com.siyeh.ig.psiutils.ParenthesesUtils; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class EqualityToEqualsFix extends InspectionGadgetsFix { |
| |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message( |
| "object.comparison.replace.quickfix"); |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) { |
| final PsiElement comparisonToken = descriptor.getPsiElement(); |
| final PsiBinaryExpression expression = (PsiBinaryExpression) |
| comparisonToken.getParent(); |
| if (expression == null) { |
| return; |
| } |
| boolean negated = false; |
| final IElementType tokenType = expression.getOperationTokenType(); |
| if (JavaTokenType.NE.equals(tokenType)) { |
| negated = true; |
| } |
| final PsiExpression lhs = expression.getLOperand(); |
| final PsiExpression strippedLhs = |
| ParenthesesUtils.stripParentheses(lhs); |
| if (strippedLhs == null) { |
| return; |
| } |
| final PsiExpression rhs = expression.getROperand(); |
| final PsiExpression strippedRhs = |
| ParenthesesUtils.stripParentheses(rhs); |
| if (strippedRhs == null) { |
| return; |
| } |
| @NonNls final String expString; |
| if (PsiUtil.isLanguageLevel7OrHigher(expression)) { |
| expString = "java.util.Objects.equals(" + strippedLhs.getText() + ',' + strippedRhs.getText() + ')'; |
| } |
| else if (ParenthesesUtils.getPrecedence(strippedLhs) > |
| ParenthesesUtils.METHOD_CALL_PRECEDENCE) { |
| expString = '(' + strippedLhs.getText() + ").equals(" + |
| strippedRhs.getText() + ')'; |
| } |
| else { |
| expString = strippedLhs.getText() + ".equals(" + |
| strippedRhs.getText() + ')'; |
| } |
| @NonNls final String newExpression; |
| if (negated) { |
| newExpression = '!' + expString; |
| } |
| else { |
| newExpression = expString; |
| } |
| PsiReplacementUtil.replaceExpressionAndShorten(expression, newExpression); |
| } |
| } |