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.Opcodes;
22 import org.objectweb.asm.signature.SignatureVisitor;
23
24 /**
25 * Computes the set of classes referenced by visited code.
26 * Inspired by <code>org.objectweb.asm.depend.DependencyVisitor</code> in the ASM dependencies example.
27 *
28 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
29 */
30 public class DefaultSignatureVisitor extends SignatureVisitor {
31 private final ResultCollector resultCollector;
32 private final String usedByClass;
33
34 /**
35 * <p>Constructor for DefaultSignatureVisitor.</p>
36 *
37 * @param resultCollector a {@link org.apache.maven.shared.dependency.analyzer.asm.ResultCollector} object.
38 */
39 public DefaultSignatureVisitor(ResultCollector resultCollector, String usedByClass) {
40 super(Opcodes.ASM9);
41 this.resultCollector = resultCollector;
42 this.usedByClass = usedByClass;
43 }
44
45 /** {@inheritDoc} */
46 @Override
47 public void visitClassType(final String name) {
48 resultCollector.addName(usedByClass, name);
49 }
50
51 /** {@inheritDoc} */
52 @Override
53 public void visitInnerClassType(final String name) {
54 resultCollector.addName(usedByClass, name);
55 }
56 }