1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.shared.dependency.analyzer.asm;
20
21 import org.objectweb.asm.AnnotationVisitor;
22 import org.objectweb.asm.Opcodes;
23 import org.objectweb.asm.Type;
24
25 /**
26 * Computes the set of classes referenced by visited code.
27 * Inspired by <code>org.objectweb.asm.depend.DependencyVisitor</code> in the ASM dependencies example.
28 *
29 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
30 */
31 public class DefaultAnnotationVisitor extends AnnotationVisitor {
32 private final ResultCollector resultCollector;
33
34 /**
35 * <p>Constructor for DefaultAnnotationVisitor.</p>
36 *
37 * @param resultCollector a {@link org.apache.maven.shared.dependency.analyzer.asm.ResultCollector} object.
38 */
39 public DefaultAnnotationVisitor(ResultCollector resultCollector) {
40 super(Opcodes.ASM9);
41 this.resultCollector = resultCollector;
42 }
43
44 /** {@inheritDoc} */
45 @Override
46 public void visit(final String name, final Object value) {
47 if (value instanceof Type) {
48 resultCollector.addType((Type) value);
49 }
50 }
51
52 /** {@inheritDoc} */
53 @Override
54 public void visitEnum(final String name, final String desc, final String value) {
55 resultCollector.addDesc(desc);
56 }
57
58 /** {@inheritDoc} */
59 @Override
60 public AnnotationVisitor visitAnnotation(final String name, final String desc) {
61 resultCollector.addDesc(desc);
62
63 return this;
64 }
65
66 /** {@inheritDoc} */
67 @Override
68 public AnnotationVisitor visitArray(final String name) {
69 return this;
70 }
71 }