| /* |
| * Copyright (c) 2010, 2017, 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.annotation.processing.SupportedSourceVersion; |
| import javax.lang.model.type.*; |
| |
| import static javax.lang.model.SourceVersion.*; |
| |
| /** |
| * A skeletal visitor of types with default behavior appropriate for |
| * the {@link javax.lang.model.SourceVersion#RELEASE_7 RELEASE_7} |
| * source version. |
| * |
| * <p> <b>WARNING:</b> 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"}. |
| * |
| * <p>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 abstract type 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 <R> the return type of this visitor's methods. Use {@link |
| * Void} for visitors that do not need to return results. |
| * @param <P> the type of the additional parameter to this visitor's |
| * methods. Use {@code Void} for visitors that do not need an |
| * additional parameter. |
| * |
| * @see AbstractTypeVisitor6 |
| * @see AbstractTypeVisitor8 |
| * @see AbstractTypeVisitor9 |
| * @since 1.7 |
| */ |
| @SupportedSourceVersion(RELEASE_7) |
| public abstract class AbstractTypeVisitor7<R, P> extends AbstractTypeVisitor6<R, P> { |
| /** |
| * Constructor for concrete subclasses to call. |
| */ |
| @SuppressWarnings("deprecation") // Superclass constructor deprecated |
| protected AbstractTypeVisitor7() { |
| super(); |
| } |
| |
| /** |
| * Visits a {@code UnionType} in a manner defined by a subclass. |
| * |
| * @param t {@inheritDoc} |
| * @param p {@inheritDoc} |
| * @return the result of the visit as defined by a subclass |
| */ |
| @Override |
| public abstract R visitUnion(UnionType t, P p); |
| } |