Wed, 27 Apr 2016 01:34:52 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2010, 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. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package javax.lang.model.util; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import javax.annotation.processing.SupportedSourceVersion; |
aoqi@0 | 29 | import javax.lang.model.SourceVersion; |
aoqi@0 | 30 | import static javax.lang.model.SourceVersion.*; |
aoqi@0 | 31 | |
aoqi@0 | 32 | |
aoqi@0 | 33 | /** |
aoqi@0 | 34 | * A skeletal visitor of program elements with default behavior |
aoqi@0 | 35 | * appropriate for the {@link SourceVersion#RELEASE_7 RELEASE_7} |
aoqi@0 | 36 | * source version. |
aoqi@0 | 37 | * |
aoqi@0 | 38 | * <p> <b>WARNING:</b> The {@code ElementVisitor} interface |
aoqi@0 | 39 | * implemented by this class may have methods added to it in the |
aoqi@0 | 40 | * future to accommodate new, currently unknown, language structures |
aoqi@0 | 41 | * added to future versions of the Java™ programming language. |
aoqi@0 | 42 | * Therefore, methods whose names begin with {@code "visit"} may be |
aoqi@0 | 43 | * added to this class in the future; to avoid incompatibilities, |
aoqi@0 | 44 | * classes which extend this class should not declare any instance |
aoqi@0 | 45 | * methods with names beginning with {@code "visit"}. |
aoqi@0 | 46 | * |
aoqi@0 | 47 | * <p>When such a new visit method is added, the default |
aoqi@0 | 48 | * implementation in this class will be to call the {@link |
aoqi@0 | 49 | * #visitUnknown visitUnknown} method. A new abstract element visitor |
aoqi@0 | 50 | * class will also be introduced to correspond to the new language |
aoqi@0 | 51 | * level; this visitor will have different default behavior for the |
aoqi@0 | 52 | * visit method in question. When the new visitor is introduced, all |
aoqi@0 | 53 | * or portions of this visitor may be deprecated. |
aoqi@0 | 54 | * |
aoqi@0 | 55 | * <p>Note that adding a default implementation of a new visit method |
aoqi@0 | 56 | * in a visitor class will occur instead of adding a <em>default |
aoqi@0 | 57 | * method</em> directly in the visitor interface since a Java SE 8 |
aoqi@0 | 58 | * language feature cannot be used to this version of the API since |
aoqi@0 | 59 | * this version is required to be runnable on Java SE 7 |
aoqi@0 | 60 | * implementations. Future versions of the API that are only required |
aoqi@0 | 61 | * to run on Java SE 8 and later may take advantage of default methods |
aoqi@0 | 62 | * in this situation. |
aoqi@0 | 63 | * |
aoqi@0 | 64 | * @param <R> the return type of this visitor's methods. Use {@link |
aoqi@0 | 65 | * Void} for visitors that do not need to return results. |
aoqi@0 | 66 | * @param <P> the type of the additional parameter to this visitor's |
aoqi@0 | 67 | * methods. Use {@code Void} for visitors that do not need an |
aoqi@0 | 68 | * additional parameter. |
aoqi@0 | 69 | * |
aoqi@0 | 70 | * @see AbstractElementVisitor6 |
aoqi@0 | 71 | * @see AbstractElementVisitor8 |
aoqi@0 | 72 | * @since 1.7 |
aoqi@0 | 73 | */ |
aoqi@0 | 74 | @SupportedSourceVersion(RELEASE_7) |
aoqi@0 | 75 | public abstract class AbstractElementVisitor7<R, P> extends AbstractElementVisitor6<R, P> { |
aoqi@0 | 76 | /** |
aoqi@0 | 77 | * Constructor for concrete subclasses to call. |
aoqi@0 | 78 | */ |
aoqi@0 | 79 | protected AbstractElementVisitor7(){ |
aoqi@0 | 80 | super(); |
aoqi@0 | 81 | } |
aoqi@0 | 82 | } |