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.annotation.processing.SupportedSourceVersion; 29 import javax.lang.model.SourceVersion; 30 import javax.lang.model.element.*; 31 import static javax.lang.model.SourceVersion.*; 32 33 /** 34 * A visitor of program elements based on their {@linkplain 35 * ElementKind kind} with default behavior appropriate for the {@link 36 * SourceVersion#RELEASE_7 RELEASE_7} source version. For {@linkplain 37 * Element elements} <code><i>Xyz</i></code> that may have more than one 38 * kind, the <code>visit<i>Xyz</i></code> methods in this class delegate 39 * to the <code>visit<i>Xyz</i>As<i>Kind</i></code> method corresponding to the 40 * first argument's kind. The <code>visit<i>Xyz</i>As<i>Kind</i></code> methods 41 * call {@link #defaultAction defaultAction}, passing their arguments 42 * to {@code defaultAction}'s corresponding parameters. 43 * 44 * @apiNote 45 * Methods in this class may be overridden subject to their 46 * general contract. 47 * 48 * @param <R> the return type of this visitor's methods. Use {@link 49 * Void} for visitors that do not need to return results. 50 * @param <P> the type of the additional parameter to this visitor's 51 * methods. Use {@code Void} for visitors that do not need an 52 * additional parameter. 53 * 54 * @see <a href="ElementKindVisitor6.html#note_for_subclasses"> 55 * <strong>Compatibility note for subclasses</strong></a> 56 * @see ElementKindVisitor6 57 * @see ElementKindVisitor8 58 * @see ElementKindVisitor9 59 * @see ElementKindVisitor14 60 * @since 1.7 61 */ 62 @SupportedSourceVersion(RELEASE_7) 63 public class ElementKindVisitor7<R, P> extends ElementKindVisitor6<R, P> { 64 /** 65 * Constructor for concrete subclasses; uses {@code null} for the 66 * default value. 67 * 68 * @deprecated Release 7 is obsolete; update to a visitor for a newer 69 * release level. 70 */ 71 @Deprecated(since="12") 72 protected ElementKindVisitor7() { 73 super(null); // Superclass constructor deprecated too 74 } 75 76 /** 77 * Constructor for concrete subclasses; uses the argument for the 78 * default value. 79 * 80 * @param defaultValue the value to assign to {@link #DEFAULT_VALUE} 81 * 82 * @deprecated Release 7 is obsolete; update to a visitor for a newer 83 * release level. 84 */ 85 @Deprecated(since="12") 86 protected ElementKindVisitor7(R defaultValue) { 87 super(defaultValue); // Superclass constructor deprecated too 88 } 89 90 /** 91 * {@inheritDoc} 92 * 93 * @implSpec This implementation calls {@code defaultAction}. 94 * 95 * @param e {@inheritDoc} 96 * @param p {@inheritDoc} 97 * @return the result of {@code defaultAction} 98 */ 99 @Override 100 public R visitVariableAsResourceVariable(VariableElement e, P p) { 101 return defaultAction(e, p); 102 } 103 }