Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/processing/model/type/NoTypes.java
test/tools/javac/processing/model/type/NoTypes.java
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| 1 /* | |
| 2 * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 6418666 6423973 6453386 | |
| 27 * @summary Test the NoTypes: VOID, PACKAGE, NONE | |
| 28 * @author Scott Seligman | |
| 29 * @compile -g NoTypes.java | |
| 30 * @compile -processor NoTypes -proc:only NoTypes.java | |
| 31 */ | |
| 32 | |
| 33 import java.util.Set; | |
| 34 import javax.annotation.processing.*; | |
| 35 import javax.lang.model.SourceVersion; | |
| 36 import javax.lang.model.element.*; | |
| 37 import javax.lang.model.type.*; | |
| 38 import javax.lang.model.util.*; | |
| 39 | |
| 40 import static javax.lang.model.type.TypeKind.*; | |
| 41 | |
| 42 | |
| 43 @SupportedSourceVersion(SourceVersion.RELEASE_6) | |
| 44 @SupportedAnnotationTypes("*") | |
| 45 public class NoTypes extends AbstractProcessor { | |
| 46 | |
| 47 Elements elements; | |
| 48 Types types; | |
| 49 | |
| 50 public void init(ProcessingEnvironment penv) { | |
| 51 super.init(penv); | |
| 52 elements = penv.getElementUtils(); | |
| 53 types = penv.getTypeUtils(); | |
| 54 } | |
| 55 | |
| 56 public boolean process(Set<? extends TypeElement> annoTypes, | |
| 57 RoundEnvironment round) { | |
| 58 if (!round.processingOver()) | |
| 59 doit(annoTypes, round); | |
| 60 return true; | |
| 61 } | |
| 62 | |
| 63 private void doit(Set<? extends TypeElement> annoTypes, | |
| 64 RoundEnvironment round) { | |
| 65 | |
| 66 // The superclass of Object is NONE. | |
| 67 TypeElement object = elements.getTypeElement("java.lang.Object"); | |
| 68 verifyKind(NONE, object.getSuperclass()); | |
| 69 | |
| 70 // The enclosing type of a top-level class is NONE | |
| 71 verifyKind(NONE, ((DeclaredType)object.asType()).getEnclosingType()); | |
| 72 | |
| 73 // The superclass of an interface is NONE. | |
| 74 TypeElement i = elements.getTypeElement("NoTypes.I"); | |
| 75 verifyKind(NONE, i.getSuperclass()); | |
| 76 | |
| 77 // The type of a package is PACKAGE. | |
| 78 Element pkg = i.getEnclosingElement().getEnclosingElement(); | |
| 79 verifyKind(PACKAGE, pkg.asType()); | |
| 80 | |
| 81 // A package isn't enclosed. Not yet, anyway. | |
| 82 if (pkg.getEnclosingElement() != null) | |
| 83 throw new AssertionError(); | |
| 84 | |
| 85 verifyKind(VOID, types.getNoType(VOID)); | |
| 86 verifyKind(NONE, types.getNoType(NONE)); | |
| 87 | |
| 88 // The return type of a constructor or void method is VOID. | |
| 89 class Scanner extends ElementScanner6<Void, Void> { | |
| 90 @Override | |
| 91 public Void visitExecutable(ExecutableElement e, Void p) { | |
| 92 verifyKind(VOID, e.getReturnType()); | |
| 93 ExecutableType t = (ExecutableType) e.asType(); | |
| 94 verifyKind(VOID, t.getReturnType()); | |
| 95 return null; | |
| 96 } | |
| 97 } | |
| 98 TypeElement c = elements.getTypeElement("NoTypes.C"); | |
| 99 new Scanner().scan(c); | |
| 100 } | |
| 101 | |
| 102 /** | |
| 103 * Verify that a NoType instance is of a particular kind, | |
| 104 * and that TypeKindVisitor6 properly dispatches on it. | |
| 105 */ | |
| 106 private void verifyKind(TypeKind kind, TypeMirror type) { | |
| 107 class Vis extends TypeKindVisitor6<TypeKind, Void> { | |
| 108 @Override | |
| 109 public TypeKind visitNoTypeAsVoid(NoType t, Void p) { | |
| 110 return VOID; | |
| 111 } | |
| 112 @Override | |
| 113 public TypeKind visitNoTypeAsPackage(NoType t, Void p) { | |
| 114 return PACKAGE; | |
| 115 } | |
| 116 @Override | |
| 117 public TypeKind visitNoTypeAsNone(NoType t, Void p) { | |
| 118 return NONE; | |
| 119 } | |
| 120 } | |
| 121 if (kind != type.getKind() || kind != new Vis().visit(type)) | |
| 122 throw new AssertionError(); | |
| 123 } | |
| 124 | |
| 125 | |
| 126 // Fodder for the tests | |
| 127 | |
| 128 interface I { | |
| 129 } | |
| 130 | |
| 131 class C { | |
| 132 C() {} | |
| 133 void m() {} | |
| 134 } | |
| 135 } |
