| /* |
| * Copyright 2000-2009 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.intellij.codeInspection.sameReturnValue; |
| |
| import com.intellij.analysis.AnalysisScope; |
| import com.intellij.codeInsight.daemon.GroupNames; |
| import com.intellij.codeInspection.*; |
| import com.intellij.codeInspection.reference.*; |
| import com.intellij.psi.PsiMethod; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author max |
| */ |
| public class SameReturnValueInspection extends GlobalJavaBatchInspectionTool { |
| @Override |
| @Nullable |
| public CommonProblemDescriptor[] checkElement(@NotNull RefEntity refEntity, @NotNull AnalysisScope scope, @NotNull InspectionManager manager, @NotNull GlobalInspectionContext globalContext, |
| @NotNull ProblemDescriptionsProcessor processor) { |
| if (refEntity instanceof RefMethod) { |
| final RefMethod refMethod = (RefMethod)refEntity; |
| |
| if (refMethod.isConstructor()) return null; |
| if (refMethod.hasSuperMethods()) return null; |
| |
| String returnValue = refMethod.getReturnValueIfSame(); |
| if (returnValue != null) { |
| final String message; |
| if (refMethod.getDerivedMethods().isEmpty()) { |
| message = InspectionsBundle.message("inspection.same.return.value.problem.descriptor", "<code>" + returnValue + "</code>"); |
| } else if (refMethod.hasBody()) { |
| message = InspectionsBundle.message("inspection.same.return.value.problem.descriptor1", "<code>" + returnValue + "</code>"); |
| } else { |
| message = InspectionsBundle.message("inspection.same.return.value.problem.descriptor2", "<code>" + returnValue + "</code>"); |
| } |
| |
| return new ProblemDescriptor[] {manager.createProblemDescriptor(refMethod.getElement().getNavigationElement(), message, false, null, ProblemHighlightType.GENERIC_ERROR_OR_WARNING)}; |
| } |
| } |
| |
| return null; |
| } |
| |
| |
| @Override |
| protected boolean queryExternalUsagesRequests(@NotNull final RefManager manager, @NotNull final GlobalJavaInspectionContext globalContext, |
| @NotNull final ProblemDescriptionsProcessor processor) { |
| manager.iterate(new RefJavaVisitor() { |
| @Override public void visitElement(@NotNull RefEntity refEntity) { |
| if (refEntity instanceof RefElement && processor.getDescriptions(refEntity) != null) { |
| refEntity.accept(new RefJavaVisitor() { |
| @Override public void visitMethod(@NotNull final RefMethod refMethod) { |
| globalContext.enqueueDerivedMethodsProcessor(refMethod, new GlobalJavaInspectionContext.DerivedMethodsProcessor() { |
| @Override |
| public boolean process(PsiMethod derivedMethod) { |
| processor.ignoreElement(refMethod); |
| return false; |
| } |
| }); |
| } |
| }); |
| } |
| } |
| }); |
| |
| return false; |
| } |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionsBundle.message("inspection.same.return.value.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String getGroupDisplayName() { |
| return GroupNames.DECLARATION_REDUNDANCY; |
| } |
| |
| @Override |
| @NotNull |
| public String getShortName() { |
| return "SameReturnValue"; |
| } |
| } |