1 /* 2 * Copyright (c) 2019, 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 javax.lang.model.util; 27 28 import javax.annotation.processing.SupportedSourceVersion; 29 import javax.lang.model.SourceVersion; 30 import static javax.lang.model.SourceVersion.*; 31 32 /** 33 * A skeletal visitor of types with default behavior appropriate for the 34 * {@link SourceVersion#RELEASE_14 RELEASE_14} source version. 35 * 36 * <p> <b>WARNING:</b> The {@code TypeVisitor} interface implemented 37 * by this class may have methods added to it in the future to 38 * accommodate new, currently unknown, language structures added to 39 * future versions of the Java™ programming language. 40 * Therefore, methods whose names begin with {@code "visit"} may be 41 * added to this class in the future; to avoid incompatibilities, 42 * classes which extend this class should not declare any instance 43 * methods with names beginning with {@code "visit"}. 44 * 45 * <p>When such a new visit method is added, the default 46 * implementation in this class will be to call the {@link 47 * #visitUnknown visitUnknown} method. A new abstract type visitor 48 * class will also be introduced to correspond to the new language 49 * level; this visitor will have different default behavior for the 50 * visit method in question. When the new visitor is introduced, all 51 * or portions of this visitor may be deprecated. 52 * 53 * @param <R> the return type of this visitor's methods. Use {@link 54 * Void} for visitors that do not need to return results. 55 * @param <P> the type of the additional parameter to this visitor's 56 * methods. Use {@code Void} for visitors that do not need an 57 * additional parameter. 58 * 59 * @see AbstractTypeVisitor6 60 * @see AbstractTypeVisitor7 61 * @see AbstractTypeVisitor8 62 * @see AbstractTypeVisitor9 63 * @since 14 64 */ 65 @SupportedSourceVersion(RELEASE_15) 66 public abstract class AbstractTypeVisitor14<R, P> extends AbstractTypeVisitor9<R, P> { 67 /** 68 * Constructor for concrete subclasses to call. 69 */ 70 protected AbstractTypeVisitor14() { 71 super(); 72 } 73 }