| /* |
| * Copyright 2003-2012 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.visibility; |
| |
| import com.intellij.codeInspection.ui.SingleCheckboxOptionsPanel; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiUtil; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import com.siyeh.ig.psiutils.MethodUtils; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| public class MethodOverloadsParentMethodInspectionBase extends BaseInspection { |
| |
| @SuppressWarnings("PublicField") |
| public boolean reportIncompatibleParameters = false; |
| |
| @Override |
| @NotNull |
| public String getID() { |
| return "MethodOverloadsMethodOfSuperclass"; |
| } |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message("method.overloads.display.name"); |
| } |
| |
| @Override |
| protected boolean buildQuickFixesOnlyForOnTheFlyErrors() { |
| return true; |
| } |
| |
| @Override |
| @NotNull |
| public String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message("method.overloads.problem.descriptor"); |
| } |
| |
| @Nullable |
| @Override |
| public JComponent createOptionsPanel() { |
| return new SingleCheckboxOptionsPanel(InspectionGadgetsBundle.message("method.overloads.report.incompatible.option"), |
| this, "reportIncompatibleParameters"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new MethodOverloadsParentMethodVisitor(); |
| } |
| |
| private class MethodOverloadsParentMethodVisitor extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitMethod(@NotNull PsiMethod method) { |
| if (method.hasModifierProperty(PsiModifier.PRIVATE) || method.hasModifierProperty(PsiModifier.STATIC)) { |
| return; |
| } |
| if (method.getNameIdentifier() == null || method.isConstructor()) { |
| return; |
| } |
| final PsiClass aClass = method.getContainingClass(); |
| if (aClass == null) { |
| return; |
| } |
| if (MethodUtils.hasSuper(method)) { |
| return; |
| } |
| final Set<PsiClass> visitedClasses = new HashSet<PsiClass>(); |
| processSupers(method, aClass, aClass, visitedClasses); |
| } |
| |
| private boolean processSupers(final PsiMethod method, |
| final PsiClass psiClass, |
| final PsiClass initialClass, |
| final Set<PsiClass> visitedClasses) { |
| if (!visitedClasses.add(psiClass)) { |
| return false; |
| } |
| if (initialClass != psiClass && methodOverloads(method, psiClass)) { |
| registerMethodError(method); |
| return true; |
| } |
| else { |
| if (PsiUtil.isLanguageLevel8OrHigher(method)) { |
| for (PsiClass superClass : psiClass.getSupers()) { |
| if (processSupers(method, superClass, initialClass, visitedClasses)) { |
| return true; |
| } |
| } |
| } else { |
| final PsiClass superClass = psiClass.getSuperClass(); |
| if (superClass != null) { |
| return processSupers(method, superClass, initialClass, visitedClasses); |
| } |
| } |
| } |
| return false; |
| } |
| |
| private boolean methodOverloads(PsiMethod method, PsiClass ancestorClass) { |
| final String methodName = method.getName(); |
| final PsiParameterList parameterList = method.getParameterList(); |
| final PsiParameter[] parameters = parameterList.getParameters(); |
| final PsiMethod[] methods = ancestorClass.findMethodsByName(methodName, false); |
| for (final PsiMethod testMethod : methods) { |
| if (!testMethod.hasModifierProperty(PsiModifier.PRIVATE) && |
| !testMethod.hasModifierProperty(PsiModifier.STATIC) && |
| !testMethod.hasModifierProperty(PsiModifier.ABSTRACT) && |
| !isOverriddenInClass(testMethod, method.getContainingClass())) { |
| final PsiParameterList testParameterList = testMethod.getParameterList(); |
| final PsiParameter[] testParameters = testParameterList.getParameters(); |
| if (testParameters.length == parameters.length) { |
| if (reportIncompatibleParameters || parametersAreCompatible(parameters, testParameters)) { |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| private boolean isOverriddenInClass(PsiMethod method, PsiClass aClass) { |
| return aClass.findMethodsBySignature(method, false).length > 0; |
| } |
| |
| private boolean parametersAreCompatible(PsiParameter[] parameters, PsiParameter[] testParameters) { |
| for (int i = 0; i < parameters.length; i++) { |
| final PsiParameter parameter = parameters[i]; |
| final PsiType parameterType = parameter.getType(); |
| final PsiParameter testParameter = testParameters[i]; |
| final PsiType testParameterType = testParameter.getType(); |
| if (!parameterType.isAssignableFrom(testParameterType) && !testParameterType.isAssignableFrom(parameterType)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |
| } |