author | darcy |
Thu, 13 Dec 2018 19:06:11 +0100 | |
changeset 53023 | 6879069d9d94 |
parent 50892 | a5557f24b4d4 |
child 55382 | 30b1b7b4dd86 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package javax.lang.model.util; |
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|
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import javax.annotation.processing.SupportedSourceVersion; |
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import javax.lang.model.SourceVersion; |
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import javax.lang.model.type.IntersectionType; |
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import static javax.lang.model.SourceVersion.*; |
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/** |
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* A simple visitor of types with default behavior appropriate for |
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* source versions {@link SourceVersion#RELEASE_9 RELEASE_9} through |
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* {@link SourceVersion#RELEASE_13 RELEASE_13}. |
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* |
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* Visit methods corresponding to {@code RELEASE_9} and earlier |
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* language constructs call {@link #defaultAction defaultAction}, |
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* passing their arguments to {@code defaultAction}'s corresponding |
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* parameters. |
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* |
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* <p> Methods in this class may be overridden subject to their |
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* general contract. Note that annotating methods in concrete |
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* subclasses with {@link java.lang.Override @Override} will help |
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* ensure that methods are overridden as intended. |
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* |
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* <p> <b>WARNING:</b> The {@code TypeVisitor} interface implemented |
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* by this class may have methods added to it in the future to |
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* accommodate new, currently unknown, language structures added to |
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* future versions of the Java™ programming language. |
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* Therefore, methods whose names begin with {@code "visit"} may be |
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* added to this class in the future; to avoid incompatibilities, |
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* classes which extend this class should not declare any instance |
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* methods with names beginning with {@code "visit"}. |
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* |
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* <p>When such a new visit method is added, the default |
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* implementation in this class will be to call the {@link |
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* #visitUnknown visitUnknown} method. A new simple type visitor |
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* class will also be introduced to correspond to the new language |
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* level; this visitor will have different default behavior for the |
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* visit method in question. When the new visitor is introduced, all |
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* or portions of this visitor may be deprecated. |
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* |
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* @param <R> the return type of this visitor's methods. Use {@link |
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* Void} for visitors that do not need to return results. |
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* @param <P> the type of the additional parameter to this visitor's |
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* methods. Use {@code Void} for visitors that do not need an |
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* additional parameter. |
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* |
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* @see SimpleTypeVisitor6 |
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* @see SimpleTypeVisitor7 |
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* @see SimpleTypeVisitor8 |
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* @since 9 |
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*/ |
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@SupportedSourceVersion(RELEASE_13) |
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public class SimpleTypeVisitor9<R, P> extends SimpleTypeVisitor8<R, P> { |
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/** |
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* Constructor for concrete subclasses; uses {@code null} for the |
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* default value. |
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*/ |
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protected SimpleTypeVisitor9(){ |
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super(null); |
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} |
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/** |
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* Constructor for concrete subclasses; uses the argument for the |
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* default value. |
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* |
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* @param defaultValue the value to assign to {@link #DEFAULT_VALUE} |
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*/ |
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protected SimpleTypeVisitor9(R defaultValue){ |
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super(defaultValue); |
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} |
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} |