1 /*
2 * Copyright (c) 2010, 2012, 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
47 * ensure that methods are overridden as intended.
48 *
49 * <p> <b>WARNING:</b> The {@code ElementVisitor} interface
50 * implemented by this class may have methods added to it or the
51 * {@code ElementKind} {@code enum} used in this case may have
52 * constants added to it in the future to accommodate new, currently
53 * unknown, language structures added to future versions of the
54 * Java™ programming language. Therefore, methods whose names
55 * begin with {@code "visit"} may be added to this class in the
56 * future; to avoid incompatibilities, classes which extend this class
57 * should not declare any instance methods with names beginning with
58 * {@code "visit"}.
59 *
60 * <p>When such a new visit method is added, the default
61 * implementation in this class will be to call the {@link
62 * #visitUnknown visitUnknown} method. A new abstract element kind
63 * visitor class will also be introduced to correspond to the new
64 * language level; this visitor will have different default behavior
65 * for the visit method in question. When the new visitor is
66 * introduced, all or portions of this visitor may be deprecated.
67 *
68 * @param <R> the return type of this visitor's methods. Use {@link
69 * Void} for visitors that do not need to return results.
70 * @param <P> the type of the additional parameter to this visitor's
71 * methods. Use {@code Void} for visitors that do not need an
72 * additional parameter.
73 *
74 * @see ElementKindVisitor6
75 * @see ElementKindVisitor8
76 * @since 1.7
77 */
78 @SupportedSourceVersion(RELEASE_7)
79 public class ElementKindVisitor7<R, P> extends ElementKindVisitor6<R, P> {
80 /**
81 * Constructor for concrete subclasses; uses {@code null} for the
82 * default value.
83 */
84 protected ElementKindVisitor7() {
85 super(null);
86 }
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1 /*
2 * Copyright (c) 2010, 2013, 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
47 * ensure that methods are overridden as intended.
48 *
49 * <p> <b>WARNING:</b> The {@code ElementVisitor} interface
50 * implemented by this class may have methods added to it or the
51 * {@code ElementKind} {@code enum} used in this case may have
52 * constants added to it in the future to accommodate new, currently
53 * unknown, language structures added to future versions of the
54 * Java™ programming language. Therefore, methods whose names
55 * begin with {@code "visit"} may be added to this class in the
56 * future; to avoid incompatibilities, classes which extend this class
57 * should not declare any instance methods with names beginning with
58 * {@code "visit"}.
59 *
60 * <p>When such a new visit method is added, the default
61 * implementation in this class will be to call the {@link
62 * #visitUnknown visitUnknown} method. A new abstract element kind
63 * visitor class will also be introduced to correspond to the new
64 * language level; this visitor will have different default behavior
65 * for the visit method in question. When the new visitor is
66 * introduced, all or portions of this visitor may be deprecated.
67 *
68 * <p>Note that adding a default implementation of a new visit method
69 * in a visitor class will occur instead of adding a <em>default
70 * method</em> directly in the visitor interface since a Java SE 8
71 * language feature cannot be used to this version of the API since
72 * this version is required to be runnable on Java SE 7
73 * implementations. Future versions of the API that are only required
74 * to run on Java SE 8 and later may take advantage of default methods
75 * in this situation.
76 *
77 * @param <R> the return type of this visitor's methods. Use {@link
78 * Void} for visitors that do not need to return results.
79 * @param <P> the type of the additional parameter to this visitor's
80 * methods. Use {@code Void} for visitors that do not need an
81 * additional parameter.
82 *
83 * @see ElementKindVisitor6
84 * @see ElementKindVisitor8
85 * @since 1.7
86 */
87 @SupportedSourceVersion(RELEASE_7)
88 public class ElementKindVisitor7<R, P> extends ElementKindVisitor6<R, P> {
89 /**
90 * Constructor for concrete subclasses; uses {@code null} for the
91 * default value.
92 */
93 protected ElementKindVisitor7() {
94 super(null);
95 }
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