Showing the changes to java/pkg/sun/reflect/generics/scope/ClassScope.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2003, 2004, Oracle and/or its affiliates. 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. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.reflect.generics.scope; | |
| 27 | + | |
| 28 | +import java.lang.reflect.Constructor; | |
| 29 | +import java.lang.reflect.Method; | |
| 30 | + | |
| 31 | + | |
| 32 | +/** | |
| 33 | + * This class represents the scope containing the type variables of | |
| 34 | + * a class. | |
| 35 | + */ | |
| 36 | +public class ClassScope extends AbstractScope<Class<?>> implements Scope { | |
| 37 | + | |
| 38 | + // constructor is private to enforce use of factory method | |
| 39 | + private ClassScope(Class<?> c){ | |
| 40 | + super(c); | |
| 41 | + } | |
| 42 | + | |
| 43 | + /** | |
| 44 | + * Overrides the abstract method in the superclass. | |
| 45 | + * @return the enclosing scope | |
| 46 | + */ | |
| 47 | + protected Scope computeEnclosingScope() { | |
| 48 | + Class<?> receiver = getRecvr(); | |
| 49 | + | |
| 50 | + Method m = receiver.getEnclosingMethod(); | |
| 51 | + if (m != null) | |
| 52 | + // Receiver is a local or anonymous class enclosed in a | |
| 53 | + // method. | |
| 54 | + return MethodScope.make(m); | |
| 55 | + | |
| 56 | + Constructor<?> cnstr = receiver.getEnclosingConstructor(); | |
| 57 | + if (cnstr != null) | |
| 58 | + // Receiver is a local or anonymous class enclosed in a | |
| 59 | + // constructor. | |
| 60 | + return ConstructorScope.make(cnstr); | |
| 61 | + | |
| 62 | + Class<?> c = receiver.getEnclosingClass(); | |
| 63 | + // if there is a declaring class, recvr is a member class | |
| 64 | + // and its enclosing scope is that of the declaring class | |
| 65 | + if (c != null) | |
| 66 | + // Receiver is a local class, an anonymous class, or a | |
| 67 | + // member class (static or not). | |
| 68 | + return ClassScope.make(c); | |
| 69 | + | |
| 70 | + // otherwise, recvr is a top level class, and it has no real | |
| 71 | + // enclosing scope. | |
| 72 | + return DummyScope.make(); | |
| 73 | + } | |
| 74 | + | |
| 75 | + /** | |
| 76 | + * Factory method. Takes a <tt>Class</tt> object and creates a | |
| 77 | + * scope for it. | |
| 78 | + * @param c - a Class whose scope we want to obtain | |
| 79 | + * @return The type-variable scope for the class c | |
| 80 | + */ | |
| 81 | + public static ClassScope make(Class<?> c) { return new ClassScope(c);} | |
| 82 | + | |
| 83 | +} | |