1 /* 2 * Copyright (c) 2010, 2020, 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.lang.model.element.*; 29 import javax.annotation.processing.SupportedSourceVersion; 30 import javax.lang.model.SourceVersion; 31 import static javax.lang.model.SourceVersion.*; 32 33 /** 34 * A simple visitor of program elements with default behavior 35 * appropriate for the {@link SourceVersion#RELEASE_7 RELEASE_7} 36 * source version. 37 * 38 * Visit methods corresponding to {@code RELEASE_7} and earlier 39 * language constructs call {@link #defaultAction defaultAction}, 40 * passing their arguments to {@code defaultAction}'s corresponding 41 * parameters. 42 * 43 * @apiNote 44 * Methods in this class may be overridden subject to their general 45 * contract. 46 * 47 * @param <R> the return type of this visitor's methods. Use {@code Void} 48 * for visitors that do not need to return results. 49 * @param <P> the type of the additional parameter to this visitor's methods. Use {@code Void} 50 * for visitors that do not need an additional parameter. 51 * 52 * @see <a href="SimpleElementVisitor6.html#note_for_subclasses"> 53 * <strong>Compatibility note for subclasses</strong></a> 54 * @see SimpleElementVisitor6 55 * @see SimpleElementVisitor8 56 * @see SimpleElementVisitor9 57 * @see SimpleElementVisitor14 58 * @since 1.7 59 */ 60 @SupportedSourceVersion(RELEASE_7) 61 public class SimpleElementVisitor7<R, P> extends SimpleElementVisitor6<R, P> { 62 /** 63 * Constructor for concrete subclasses; uses {@code null} for the 64 * default value. 65 * 66 * @deprecated Release 7 is obsolete; update to a visitor for a newer 67 * release level. 68 */ 69 @Deprecated(since="12") SimpleElementVisitor7()70 protected SimpleElementVisitor7(){ 71 super(null); // Superclass constructor deprecated too 72 } 73 74 /** 75 * Constructor for concrete subclasses; uses the argument for the 76 * default value. 77 * 78 * @param defaultValue the value to assign to {@link #DEFAULT_VALUE} 79 * 80 * @deprecated Release 7 is obsolete; update to a visitor for a newer 81 * release level. 82 */ 83 @Deprecated(since="12") SimpleElementVisitor7(R defaultValue)84 protected SimpleElementVisitor7(R defaultValue){ 85 super(defaultValue); // Superclass constructor deprecated too 86 } 87 88 /** 89 * {@inheritDoc} 90 * 91 * @implSpec This implementation calls {@code defaultAction}. 92 * 93 * @param e {@inheritDoc} 94 * @param p {@inheritDoc} 95 * @return {@inheritDoc} 96 */ 97 @Override visitVariable(VariableElement e, P p)98 public R visitVariable(VariableElement e, P p) { 99 return defaultAction(e, p); 100 } 101 } 102