1 /*
2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3  *
4  * This code is free software; you can redistribute it and/or modify it
5  * under the terms of the GNU General Public License version 2 only, as
6  * published by the Free Software Foundation.  Oracle designates this
7  * particular file as subject to the "Classpath" exception as provided
8  * by Oracle in the LICENSE file that accompanied this code.
9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
22  * questions.
23  */
24 
25 /*
26  * This file is available under and governed by the GNU General Public
27  * License version 2 only, as published by the Free Software Foundation.
28  * However, the following notice accompanied the original version of this
29  * file:
30  *
31  * ASM: a very small and fast Java bytecode manipulation framework
32  * Copyright (c) 2000-2011 INRIA, France Telecom
33  * All rights reserved.
34  *
35  * Redistribution and use in source and binary forms, with or without
36  * modification, are permitted provided that the following conditions
37  * are met:
38  * 1. Redistributions of source code must retain the above copyright
39  *    notice, this list of conditions and the following disclaimer.
40  * 2. Redistributions in binary form must reproduce the above copyright
41  *    notice, this list of conditions and the following disclaimer in the
42  *    documentation and/or other materials provided with the distribution.
43  * 3. Neither the name of the copyright holders nor the names of its
44  *    contributors may be used to endorse or promote products derived from
45  *    this software without specific prior written permission.
46  *
47  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
48  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
51  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
52  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
53  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
54  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
55  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
56  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
57  * THE POSSIBILITY OF SUCH DAMAGE.
58  */
59 package jdk.internal.org.objectweb.asm.commons;
60 
61 import jdk.internal.org.objectweb.asm.AnnotationVisitor;
62 import jdk.internal.org.objectweb.asm.Opcodes;
63 
64 /**
65  * An {@link AnnotationVisitor} that remaps types with a {@link Remapper}.
66  *
67  * @author Eugene Kuleshov
68  */
69 public class AnnotationRemapper extends AnnotationVisitor {
70 
71     /** The remapper used to remap the types in the visited annotation. */
72     protected final Remapper remapper;
73 
74     /**
75       * Constructs a new {@link AnnotationRemapper}. <i>Subclasses must not use this constructor</i>.
76       * Instead, they must use the {@link #AnnotationRemapper(int,AnnotationVisitor,Remapper)} version.
77       *
78       * @param annotationVisitor the annotation visitor this remapper must deleted to.
79       * @param remapper the remapper to use to remap the types in the visited annotation.
80       */
AnnotationRemapper(final AnnotationVisitor annotationVisitor, final Remapper remapper)81     public AnnotationRemapper(final AnnotationVisitor annotationVisitor, final Remapper remapper) {
82         this(Opcodes.ASM7, annotationVisitor, remapper);
83     }
84 
85     /**
86       * Constructs a new {@link AnnotationRemapper}.
87       *
88       * @param api the ASM API version supported by this remapper. Must be one of {@link
89       *     jdk.internal.org.objectweb.asm.Opcodes#ASM4}, {@link jdk.internal.org.objectweb.asm.Opcodes#ASM5} or {@link
90       *     jdk.internal.org.objectweb.asm.Opcodes#ASM6}.
91       * @param annotationVisitor the annotation visitor this remapper must deleted to.
92       * @param remapper the remapper to use to remap the types in the visited annotation.
93       */
AnnotationRemapper( final int api, final AnnotationVisitor annotationVisitor, final Remapper remapper)94     protected AnnotationRemapper(
95             final int api, final AnnotationVisitor annotationVisitor, final Remapper remapper) {
96         super(api, annotationVisitor);
97         this.remapper = remapper;
98     }
99 
100     @Override
visit(final String name, final Object value)101     public void visit(final String name, final Object value) {
102         super.visit(name, remapper.mapValue(value));
103     }
104 
105     @Override
visitEnum(final String name, final String descriptor, final String value)106     public void visitEnum(final String name, final String descriptor, final String value) {
107         super.visitEnum(name, remapper.mapDesc(descriptor), value);
108     }
109 
110     @Override
visitAnnotation(final String name, final String descriptor)111     public AnnotationVisitor visitAnnotation(final String name, final String descriptor) {
112         AnnotationVisitor annotationVisitor = super.visitAnnotation(name, remapper.mapDesc(descriptor));
113         if (annotationVisitor == null) {
114             return null;
115         } else {
116             return annotationVisitor == av
117                     ? this
118                     : new AnnotationRemapper(api, annotationVisitor, remapper);
119         }
120     }
121 
122     @Override
visitArray(final String name)123     public AnnotationVisitor visitArray(final String name) {
124         AnnotationVisitor annotationVisitor = super.visitArray(name);
125         if (annotationVisitor == null) {
126             return null;
127         } else {
128             return annotationVisitor == av
129                     ? this
130                     : new AnnotationRemapper(api, annotationVisitor, remapper);
131         }
132     }
133 }
134