Thu, 07 Nov 2013 20:11:56 -0800
8027730: Fix release-8 type visitors to support intersection types
Reviewed-by: jjg, jlahoda, sogoel
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | */ |
aoqi@0 | 23 | |
aoqi@0 | 24 | /* |
aoqi@0 | 25 | * @test |
aoqi@0 | 26 | * @bug 8027730 |
aoqi@0 | 27 | * @summary Test visitor support for intersection types |
aoqi@0 | 28 | */ |
aoqi@0 | 29 | |
aoqi@0 | 30 | import java.lang.annotation.Annotation; |
aoqi@0 | 31 | import java.util.List; |
aoqi@0 | 32 | import javax.lang.model.element.*; |
aoqi@0 | 33 | import javax.lang.model.type.*; |
aoqi@0 | 34 | import javax.lang.model.util.*; |
aoqi@0 | 35 | |
aoqi@0 | 36 | public class TestIntersectionTypeVisitors { |
aoqi@0 | 37 | public static void main(String... args) throws Exception { |
aoqi@0 | 38 | IntersectionType it = new TestIntersectionType(); |
aoqi@0 | 39 | |
aoqi@0 | 40 | boolean result = it.accept(new TypeKindVisitor8Child(), null) && |
aoqi@0 | 41 | it.accept(new SimpleTypeVisitor8Child(), null) && |
aoqi@0 | 42 | it.accept(new SimpleTypeVisitor6Child(), null); |
aoqi@0 | 43 | |
aoqi@0 | 44 | if (!result) |
aoqi@0 | 45 | throw new RuntimeException(); |
aoqi@0 | 46 | } |
aoqi@0 | 47 | |
aoqi@0 | 48 | static class TestIntersectionType implements IntersectionType { |
aoqi@0 | 49 | TestIntersectionType() {} |
aoqi@0 | 50 | |
aoqi@0 | 51 | @Override |
aoqi@0 | 52 | public List<? extends TypeMirror> getBounds() { |
aoqi@0 | 53 | throw new UnsupportedOperationException(); |
aoqi@0 | 54 | } |
aoqi@0 | 55 | |
aoqi@0 | 56 | @Override |
aoqi@0 | 57 | public <R,P> R accept(TypeVisitor<R,P> v, |
aoqi@0 | 58 | P p) { |
aoqi@0 | 59 | return v.visitIntersection(this, p); |
aoqi@0 | 60 | } |
aoqi@0 | 61 | |
aoqi@0 | 62 | @Override |
aoqi@0 | 63 | public TypeKind getKind() { |
aoqi@0 | 64 | return TypeKind.INTERSECTION; |
aoqi@0 | 65 | } |
aoqi@0 | 66 | |
aoqi@0 | 67 | @Override |
aoqi@0 | 68 | public <A extends Annotation> A getAnnotation(Class<A> annotationType) { |
aoqi@0 | 69 | throw new UnsupportedOperationException(); |
aoqi@0 | 70 | } |
aoqi@0 | 71 | |
aoqi@0 | 72 | @Override |
aoqi@0 | 73 | public List<? extends AnnotationMirror> getAnnotationMirrors() { |
aoqi@0 | 74 | throw new UnsupportedOperationException(); |
aoqi@0 | 75 | } |
aoqi@0 | 76 | |
aoqi@0 | 77 | @Override |
aoqi@0 | 78 | public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType) { |
aoqi@0 | 79 | throw new UnsupportedOperationException(); |
aoqi@0 | 80 | } |
aoqi@0 | 81 | } |
aoqi@0 | 82 | |
aoqi@0 | 83 | static class TypeKindVisitor8Child extends TypeKindVisitor8<Boolean, Void> { |
aoqi@0 | 84 | TypeKindVisitor8Child() { |
aoqi@0 | 85 | super(false); |
aoqi@0 | 86 | } |
aoqi@0 | 87 | |
aoqi@0 | 88 | @Override |
aoqi@0 | 89 | public Boolean visitIntersection(IntersectionType t, Void p) { |
aoqi@0 | 90 | super.visitIntersection(t, p); // Make sure overridden method doesn't throw an exception |
aoqi@0 | 91 | return true; |
aoqi@0 | 92 | } |
aoqi@0 | 93 | } |
aoqi@0 | 94 | |
aoqi@0 | 95 | static class SimpleTypeVisitor8Child extends SimpleTypeVisitor8<Boolean, Void> { |
aoqi@0 | 96 | SimpleTypeVisitor8Child() { |
aoqi@0 | 97 | super(false); |
aoqi@0 | 98 | } |
aoqi@0 | 99 | |
aoqi@0 | 100 | @Override |
aoqi@0 | 101 | public Boolean visitIntersection(IntersectionType t, Void p) { |
aoqi@0 | 102 | super.visitIntersection(t, p); // Make sure overridden method doesn't throw an exception |
aoqi@0 | 103 | return true; |
aoqi@0 | 104 | } |
aoqi@0 | 105 | } |
aoqi@0 | 106 | |
aoqi@0 | 107 | static class SimpleTypeVisitor6Child extends SimpleTypeVisitor6<Boolean, Void> { |
aoqi@0 | 108 | SimpleTypeVisitor6Child() { |
aoqi@0 | 109 | super(false); |
aoqi@0 | 110 | } |
aoqi@0 | 111 | |
aoqi@0 | 112 | @Override |
aoqi@0 | 113 | public Boolean visitIntersection(IntersectionType t, Void p) { |
aoqi@0 | 114 | try { |
aoqi@0 | 115 | super.visitIntersection(t, p); |
aoqi@0 | 116 | return false; |
aoqi@0 | 117 | } catch (UnknownTypeException ute) { |
aoqi@0 | 118 | return true; // Expected |
aoqi@0 | 119 | } |
aoqi@0 | 120 | } |
aoqi@0 | 121 | } |
aoqi@0 | 122 | } |