| /* |
| * Copyright (c) 2006, 2010, 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 6418666 6423973 6453386 |
| * @summary Test the NoTypes: VOID, PACKAGE, NONE |
| * @author Scott Seligman |
| * @library ../../../lib |
| * @build JavacTestingAbstractProcessor |
| * @compile -g NoTypes.java |
| * @compile -processor NoTypes -proc:only NoTypes.java |
| */ |
| |
| import java.util.Set; |
| import javax.annotation.processing.*; |
| import javax.lang.model.SourceVersion; |
| import javax.lang.model.element.*; |
| import javax.lang.model.type.*; |
| import javax.lang.model.util.*; |
| |
| import static javax.lang.model.type.TypeKind.*; |
| |
| public class NoTypes extends JavacTestingAbstractProcessor { |
| public boolean process(Set<? extends TypeElement> annoTypes, |
| RoundEnvironment round) { |
| if (!round.processingOver()) |
| doit(annoTypes, round); |
| return true; |
| } |
| |
| private void doit(Set<? extends TypeElement> annoTypes, |
| RoundEnvironment round) { |
| |
| // The superclass of Object is NONE. |
| TypeElement object = elements.getTypeElement("java.lang.Object"); |
| verifyKind(NONE, object.getSuperclass()); |
| |
| // The enclosing type of a top-level class is NONE |
| verifyKind(NONE, ((DeclaredType)object.asType()).getEnclosingType()); |
| |
| // The superclass of an interface is NONE. |
| TypeElement i = elements.getTypeElement("NoTypes.I"); |
| verifyKind(NONE, i.getSuperclass()); |
| |
| // The type of a package is PACKAGE. |
| Element pkg = i.getEnclosingElement().getEnclosingElement(); |
| verifyKind(PACKAGE, pkg.asType()); |
| |
| // A package isn't enclosed. Not yet, anyway. |
| if (pkg.getEnclosingElement() != null) |
| throw new AssertionError(); |
| |
| verifyKind(VOID, types.getNoType(VOID)); |
| verifyKind(NONE, types.getNoType(NONE)); |
| |
| // The return type of a constructor or void method is VOID. |
| class Scanner extends ElementScanner7<Void, Void> { |
| @Override |
| public Void visitExecutable(ExecutableElement e, Void p) { |
| verifyKind(VOID, e.getReturnType()); |
| ExecutableType t = (ExecutableType) e.asType(); |
| verifyKind(VOID, t.getReturnType()); |
| return null; |
| } |
| } |
| TypeElement c = elements.getTypeElement("NoTypes.C"); |
| new Scanner().scan(c); |
| } |
| |
| /** |
| * Verify that a NoType instance is of a particular kind, |
| * and that TypeKindVisitor7 properly dispatches on it. |
| */ |
| private void verifyKind(TypeKind kind, TypeMirror type) { |
| class Vis extends TypeKindVisitor7<TypeKind, Void> { |
| @Override |
| public TypeKind visitNoTypeAsVoid(NoType t, Void p) { |
| return VOID; |
| } |
| @Override |
| public TypeKind visitNoTypeAsPackage(NoType t, Void p) { |
| return PACKAGE; |
| } |
| @Override |
| public TypeKind visitNoTypeAsNone(NoType t, Void p) { |
| return NONE; |
| } |
| } |
| if (kind != type.getKind() || kind != new Vis().visit(type)) |
| throw new AssertionError(); |
| } |
| |
| |
| // Fodder for the tests |
| |
| interface I { |
| } |
| |
| class C { |
| C() {} |
| void m() {} |
| } |
| } |