diff -r fd16c54261b3 -r 06bc494ca11e langtools/test/tools/javac/processing/model/type/NoTypes.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/langtools/test/tools/javac/processing/model/type/NoTypes.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,135 @@ +/* + * Copyright 2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.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 + * @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.*; + + +@SupportedSourceVersion(SourceVersion.RELEASE_6) +@SupportedAnnotationTypes("*") +public class NoTypes extends AbstractProcessor { + + Elements elements; + Types types; + + public void init(ProcessingEnvironment penv) { + super.init(penv); + elements = penv.getElementUtils(); + types = penv.getTypeUtils(); + } + + 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 ElementScanner6 { + @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 TypeKindVisitor6 properly dispatches on it. + */ + private void verifyKind(TypeKind kind, TypeMirror type) { + class Vis extends TypeKindVisitor6 { + @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() {} + } +}