/* * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8172910 * @summary Test behavior of default methods on visitors. * @modules java.compiler */ import java.util.List; import javax.lang.model.SourceVersion; import javax.lang.model.element.*; import javax.lang.model.type.*; import javax.lang.model.util.*; /** * Verify expected behavior of default methods on visitors. */ public class TestVisitorDefaults { public static void main(String... args) { DirectElementVisitorChild dvc = new DirectElementVisitorChild(); if (!"visitUnknown".equals(dvc.visitModule(null, null))) { throw new RuntimeException("Problem with DirectElementVisitorChild"); } if (!"visit".equals(dvc.visit(null))) { throw new RuntimeException("Problem with DirectElementVisitorChild"); } IndirectElementVisitorChild ivc = new IndirectElementVisitorChild(); if (!"visitUnknown".equals(ivc.visitModule(null, null))) { throw new RuntimeException("Problem with IndirectElementVisitorChild"); } DirectTypeVisitorChild dtvc = new DirectTypeVisitorChild(); if (!"visit".equals(dtvc.visit(null))) { throw new RuntimeException("Problem with DirectTypeVisitorChild"); } DirectAnnotationVisitorChild davc = new DirectAnnotationVisitorChild(); if (!"visit".equals(davc.visit(null))) { throw new RuntimeException("Problem with DirectAnnotationVisitorChild"); } } private static class DirectElementVisitorChild implements ElementVisitor { public DirectElementVisitorChild() { super(); } @Override public String visitModule(ModuleElement e, Object o) { return ElementVisitor.super.visitModule(e, null); } @Override public String visitUnknown(Element e, Object o) { return "visitUnknown"; } @Override public String visit(Element e) { return ElementVisitor.super.visit(e); } @Override public String visit(Element e, Object o) { return "visit"; } @Override public String visitExecutable(ExecutableElement e, Object o) { return throwUOE(); } @Override public String visitPackage(PackageElement e, Object o) { return throwUOE(); } @Override public String visitType(TypeElement e, Object o) { return throwUOE(); } @Override public String visitTypeParameter(TypeParameterElement e, Object o) { return throwUOE(); } @Override public String visitVariable(VariableElement e, Object o) { return throwUOE(); } } private static class IndirectElementVisitorChild extends AbstractElementVisitor6 { public IndirectElementVisitorChild() { super(); } @Override public String visitModule(ModuleElement e, Object o) { return super.visitModule(e, o); } @Override public String visitUnknown(Element e, Object o) { return "visitUnknown"; } @Override public String visitExecutable(ExecutableElement e, Object o) { return throwUOE(); } @Override public String visitPackage(PackageElement e, Object o) { return throwUOE(); } @Override public String visitType(TypeElement e, Object o) { return throwUOE(); } @Override public String visitTypeParameter(TypeParameterElement e, Object o) { return throwUOE(); } @Override public String visitVariable(VariableElement e, Object o) { return throwUOE(); } } private static class DirectTypeVisitorChild implements TypeVisitor { public DirectTypeVisitorChild() { super(); } @Override public String visit(TypeMirror t) { return TypeVisitor.super.visit(t); } @Override public String visit(TypeMirror t, Object o) { return "visit"; } @Override public String visitUnknown(TypeMirror t, Object o) { return throwUOE(); } @Override public String visitArray(ArrayType t, Object o) { return throwUOE(); } @Override public String visitDeclared(DeclaredType t, Object o) { return throwUOE(); } @Override public String visitError(ErrorType t, Object o) { return throwUOE(); } @Override public String visitExecutable(ExecutableType t, Object o) { return throwUOE(); } @Override public String visitIntersection(IntersectionType t, Object o) { return throwUOE(); } @Override public String visitNoType(NoType t, Object o) { return throwUOE(); } @Override public String visitNull(NullType t, Object o) { return throwUOE(); } @Override public String visitPrimitive(PrimitiveType t, Object o) { return throwUOE(); } @Override public String visitTypeVariable(TypeVariable t, Object o) { return throwUOE(); } @Override public String visitUnion(UnionType t, Object o) { return throwUOE(); } @Override public String visitWildcard(WildcardType t, Object o) { return throwUOE(); } } private static class DirectAnnotationVisitorChild implements AnnotationValueVisitor { @Override public String visit(AnnotationValue av) { return AnnotationValueVisitor.super.visit(av); } @Override public String visit(AnnotationValue av, Object o) { return "visit"; } @Override public String visitAnnotation(AnnotationMirror a, Object o) { return throwUOE(); } @Override public String visitArray(List vals, Object o) { return throwUOE(); } @Override public String visitBoolean(boolean b, Object o) { return throwUOE(); } @Override public String visitByte(byte b, Object o) { return throwUOE(); } @Override public String visitChar(char c, Object o) { return throwUOE(); } @Override public String visitDouble(double d, Object o) { return throwUOE(); } @Override public String visitEnumConstant(VariableElement c, Object o) { return throwUOE(); } @Override public String visitFloat(float f, Object o) { return throwUOE(); } @Override public String visitInt(int i, Object o) { return throwUOE(); } @Override public String visitLong(long i, Object o) { return throwUOE(); } @Override public String visitShort(short s, Object o) { return throwUOE(); } @Override public String visitString(String s, Object o) { return throwUOE(); } @Override public String visitType(TypeMirror t, Object o) { return throwUOE(); } @Override public String visitUnknown(AnnotationValue av, Object o) { return throwUOE(); } } private static String throwUOE() { throw new UnsupportedOperationException(); } }