| /* |
| * 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.intellij.codeInspection.compiler; |
| |
| import com.intellij.codeInsight.daemon.JavaErrorMessages; |
| import com.intellij.codeInspection.InspectionsBundle; |
| import com.intellij.codeInspection.ProblemsHolder; |
| import com.intellij.patterns.ElementPattern; |
| import com.intellij.pom.java.LanguageLevel; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.util.PsiUtil; |
| |
| import static com.intellij.patterns.PsiJavaPatterns.psiElement; |
| |
| public class JavacQuirksInspectionVisitor extends JavaElementVisitor { |
| private static final ElementPattern QUALIFIER_REFERENCE = |
| psiElement().withParent(PsiJavaCodeReferenceElement.class).withSuperParent(2, PsiJavaCodeReferenceElement.class); |
| |
| private final ProblemsHolder myHolder; |
| |
| public JavacQuirksInspectionVisitor(ProblemsHolder holder) { |
| myHolder = holder; |
| } |
| |
| @Override |
| public void visitAnnotationArrayInitializer(final PsiArrayInitializerMemberValue initializer) { |
| if (PsiUtil.isLanguageLevel7OrHigher(initializer)) return; |
| final PsiElement lastElement = PsiTreeUtil.skipSiblingsBackward(initializer.getLastChild(), PsiWhiteSpace.class, PsiComment.class); |
| if (lastElement != null && PsiUtil.isJavaToken(lastElement, JavaTokenType.COMMA)) { |
| final String message = InspectionsBundle.message("inspection.compiler.javac.quirks.anno.array.comma.problem"); |
| final String fixName = InspectionsBundle.message("inspection.compiler.javac.quirks.anno.array.comma.fix"); |
| myHolder.registerProblem(lastElement, message, new RemoveElementQuickFix(fixName)); |
| } |
| } |
| |
| @Override |
| public void visitTypeCastExpression(final PsiTypeCastExpression expression) { |
| if (PsiUtil.isLanguageLevel7OrHigher(expression)) return; |
| final PsiTypeElement type = expression.getCastType(); |
| if (type != null) { |
| type.accept(new JavaRecursiveElementWalkingVisitor() { |
| @Override |
| public void visitReferenceParameterList(final PsiReferenceParameterList list) { |
| super.visitReferenceParameterList(list); |
| if (list.getFirstChild() != null && QUALIFIER_REFERENCE.accepts(list)) { |
| final String message = InspectionsBundle.message("inspection.compiler.javac.quirks.qualifier.type.args.problem"); |
| final String fixName = InspectionsBundle.message("inspection.compiler.javac.quirks.qualifier.type.args.fix"); |
| myHolder.registerProblem(list, message, new RemoveElementQuickFix(fixName)); |
| } |
| } |
| }); |
| } |
| } |
| |
| @Override |
| public void visitIdentifier(PsiIdentifier identifier) { |
| super.visitIdentifier(identifier); |
| if (PsiUtil.getLanguageLevel(identifier).isAtLeast(LanguageLevel.JDK_1_8)) { |
| if ("_".equals(identifier.getText())) { |
| myHolder.registerProblem(identifier, JavaErrorMessages.message("underscore.identifier")); |
| } |
| } |
| } |
| } |