| /* |
| * Copyright 2000-2013 JetBrains s.r.o. |
| * |
| * 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.naming; |
| |
| import com.intellij.psi.PsiClass; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| public class ClassNameSameAsAncestorNameInspectionBase extends BaseInspection { |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "class.name.same.as.ancestor.name.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "class.name.same.as.ancestor.name.problem.descriptor"); |
| } |
| |
| @Override |
| protected boolean buildQuickFixesOnlyForOnTheFlyErrors() { |
| return true; |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new ClassNameSameAsAncestorNameVisitor(); |
| } |
| |
| private static class ClassNameSameAsAncestorNameVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitClass(@NotNull PsiClass aClass) { |
| // no call to super, so it doesn't drill down into inner classes |
| final String className = aClass.getName(); |
| if (className == null) { |
| return; |
| } |
| final Set<PsiClass> alreadyVisited = new HashSet<PsiClass>(8); |
| final PsiClass[] supers = aClass.getSupers(); |
| for (final PsiClass aSuper : supers) { |
| if (hasMatchingName(aSuper, className, alreadyVisited)) { |
| registerClassError(aClass); |
| } |
| } |
| } |
| |
| private static boolean hasMatchingName(PsiClass aSuper, |
| String className, |
| Set<PsiClass> alreadyVisited) { |
| if (aSuper == null) { |
| return false; |
| } |
| if (alreadyVisited.contains(aSuper)) { |
| return false; |
| } |
| alreadyVisited.add(aSuper); |
| final String superName = aSuper.getName(); |
| if (className.equals(superName)) { |
| return true; |
| } |
| final PsiClass[] supers = aSuper.getSupers(); |
| for (PsiClass aSupers : supers) { |
| if (hasMatchingName(aSupers, className, alreadyVisited)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| } |