Source code: com/puppycrawl/tools/checkstyle/checks/usage/transmogrify/ReferenceCounter.java
1
2 // Transmogrify License
3 //
4 // Copyright (c) 2001, ThoughtWorks, Inc.
5 // All rights reserved.
6 // Redistribution and use in source and binary forms, with or without
7 // modification, are permitted provided that the following conditions
8 // are met:
9 // - Redistributions of source code must retain the above copyright notice,
10 // this list of conditions and the following disclaimer.
11 // - Redistributions in binary form must reproduce the above copyright
12 // notice, this list of conditions and the following disclaimer in the
13 // documentation and/or other materials provided with the distribution.
14 // Neither the name of the ThoughtWorks, Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from this
16 // software without specific prior written permission.
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 // TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
27 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 package com.puppycrawl.tools.checkstyle.checks.usage.transmogrify;
30
31 import java.io.File;
32 import java.util.ArrayList;
33 import java.util.Iterator;
34 import java.util.List;
35 import java.util.ListIterator;
36
37 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
38
39 /**
40 * This class is for counting the reference
41 */
42 public class ReferenceCounter extends ReferenceTool {
43 private List _references = new ArrayList();
44 private List _resolvedReferences = new ArrayList();
45 private List _unresolvedReferences = new ArrayList();
46
47 public ReferenceCounter(SymbolTable table) {
48 super(table.getTree());
49 countReferences();
50 }
51
52 /**
53 * Return the number of references
54 */
55 public int numberOfReferences() {
56 return _references.size();
57 }
58
59 /**
60 * Return the number of resolved references
61 */
62 public int numberOfResolvedReferences() {
63 return _resolvedReferences.size();
64 }
65
66 public int numberOfUnresolvedReferences() {
67 return _unresolvedReferences.size();
68 }
69
70 public ListIterator getUnresolvedReferences() {
71 return _unresolvedReferences.listIterator();
72 }
73
74 private void countReferences() {
75 handleNode( _tree );
76 }
77
78 protected void handleNode( SymTabAST node ) {
79 if (node.getType() == TokenTypes.IDENT && node.isMeaningful()) {
80 _references.add( node );
81 if (node.getDefinition() != null && !(node.getDefinition() instanceof UnknownClass)) {
82 _resolvedReferences.add( node );
83 }
84 else {
85 _unresolvedReferences.add( node );
86 }
87 }
88 walkChildren( node );
89 }
90 }