/* * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.lang.model.util; import javax.lang.model.type.*; import javax.annotation.processing.SupportedSourceVersion; import static javax.lang.model.element.ElementKind.*; import static javax.lang.model.SourceVersion.*; import javax.lang.model.SourceVersion; /** * A visitor of types based on their {@linkplain TypeKind kind} with * default behavior appropriate for the {@link SourceVersion#RELEASE_7 * RELEASE_7} source version. For {@linkplain * TypeMirror types} XYZ that may have more than one * kind, the visitXYZ methods in this class delegate * to the visitXYZKind method corresponding to the * first argument's kind. The visitXYZKind methods * call {@link #defaultAction defaultAction}, passing their arguments * to {@code defaultAction}'s corresponding parameters. * *
Methods in this class may be overridden subject to their * general contract. Note that annotating methods in concrete * subclasses with {@link java.lang.Override @Override} will help * ensure that methods are overridden as intended. * *
WARNING: The {@code TypeVisitor} interface implemented * by this class may have methods added to it in the future to * accommodate new, currently unknown, language structures added to * future versions of the Java™ programming language. * Therefore, methods whose names begin with {@code "visit"} may be * added to this class in the future; to avoid incompatibilities, * classes which extend this class should not declare any instance * methods with names beginning with {@code "visit"}. * *
When such a new visit method is added, the default
* implementation in this class will be to call the {@link
* #visitUnknown visitUnknown} method. A new type kind visitor class
* will also be introduced to correspond to the new language level;
* this visitor will have different default behavior for the visit
* method in question. When the new visitor is introduced, all or
* portions of this visitor may be deprecated.
*
* @param the type of the additional parameter to this visitor's
* methods. Use {@code Void} for visitors that do not need an
* additional parameter.
*
* @see TypeKindVisitor6
* @since 1.7
*/
@SupportedSourceVersion(RELEASE_7)
public class TypeKindVisitor7