diff -r 000000000000 -r 959103a6100f test/tools/javac/processing/model/type/NoTypes.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/processing/model/type/NoTypes.java Wed Apr 27 01:34:52 2016 +0800 @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2006, 2011, 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 7025809 + * @summary Test the NoTypes: VOID, PACKAGE, NONE + * @author Scott Seligman + * @library /tools/javac/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 annoTypes, + RoundEnvironment round) { + if (!round.processingOver()) + doit(annoTypes, round); + return true; + } + + private void doit(Set 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 ElementScanner { + @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 + * the latest TypeKindVisitor properly dispatches on it. + */ + private void verifyKind(TypeKind kind, TypeMirror type) { + class Vis extends TypeKindVisitor { + @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() {} + } +}