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1
11
12 package org.eclipse.jdt.internal.corext.refactoring.rename;
13
14 import java.util.HashSet  ;
15 import java.util.Iterator ;
16 import java.util.Set ;
17
18 import org.eclipse.core.runtime.Assert;
19
20 import org.eclipse.jdt.core.dom.ASTNode;
21 import org.eclipse.jdt.core.dom.ASTVisitor;
22 import org.eclipse.jdt.core.dom.CompilationUnit;
23 import org.eclipse.jdt.core.dom.IBinding;
24 import org.eclipse.jdt.core.dom.Javadoc;
25 import org.eclipse.jdt.core.dom.SimpleName;
26 import org.eclipse.jdt.core.dom.VariableDeclaration;
27
28 import org.eclipse.jdt.internal.corext.dom.ASTNodes;
29
30
31 public class TempOccurrenceAnalyzer extends ASTVisitor {
32
33 private Set fReferenceNodes;
34
35 private Set fJavadocNodes;
36
37 private VariableDeclaration fTempDeclaration;
38 private IBinding fTempBinding;
39 private boolean fAnalyzeJavadoc;
40
41 private boolean fIsInJavadoc;
42
43 public TempOccurrenceAnalyzer(VariableDeclaration tempDeclaration, boolean analyzeJavadoc){
44 Assert.isNotNull(tempDeclaration);
45 fReferenceNodes= new HashSet ();
46 fJavadocNodes= new HashSet ();
47 fAnalyzeJavadoc= analyzeJavadoc;
48 fTempDeclaration= tempDeclaration;
49 fTempBinding= tempDeclaration.resolveBinding();
50 fIsInJavadoc= false;
51 }
52
53 public void perform() {
54 ASTNode cuNode= ASTNodes.getParent(fTempDeclaration, CompilationUnit.class);
55 cuNode.accept(this);
56 }
57
58 public int[] getReferenceOffsets(){
59 int[] offsets= new int[fReferenceNodes.size()];
60 addOffsets(offsets, 0, fReferenceNodes);
61 return offsets;
62 }
63
64 public int[] getReferenceAndJavadocOffsets(){
65 int[] offsets= new int[fReferenceNodes.size() + fJavadocNodes.size()];
66 addOffsets(offsets, 0, fReferenceNodes);
67 addOffsets(offsets, fReferenceNodes.size(), fJavadocNodes);
68 return offsets;
69 }
70
71 private void addOffsets(int[] offsets, int start, Set nodeSet) {
72 int i= start;
73 for (Iterator iter= nodeSet.iterator(); iter.hasNext(); i++) {
74 ASTNode node= (ASTNode) iter.next();
75 offsets[i]= node.getStartPosition();
76 }
77 }
78
79 public int getNumberOfReferences() {
80 return fReferenceNodes.size();
81 }
82
83 public SimpleName[] getReferenceNodes() {
84 return (SimpleName[]) fReferenceNodes.toArray(new SimpleName[fReferenceNodes.size()]);
85 }
86
87 public SimpleName[] getJavadocNodes() {
88 return (SimpleName[]) fJavadocNodes.toArray(new SimpleName[fJavadocNodes.size()]);
89 }
90
91 public SimpleName[] getReferenceAndDeclarationNodes() {
92 SimpleName[] nodes= (SimpleName[]) fReferenceNodes.toArray(new SimpleName[fReferenceNodes.size() + 1]);
93 nodes[fReferenceNodes.size()]= fTempDeclaration.getName();
94 return nodes;
95 }
96
97
99 public boolean visit(Javadoc node) {
100 if (fAnalyzeJavadoc)
101 fIsInJavadoc= true;
102 return fAnalyzeJavadoc;
103 }
104
105 public void endVisit(Javadoc node) {
106 fIsInJavadoc= false;
107 }
108
109 public boolean visit(SimpleName node){
110 if (node.getParent() instanceof VariableDeclaration){
111 if (((VariableDeclaration)node.getParent()).getName() == node)
112 return true; }
114
115 if (fTempBinding != null && fTempBinding == node.resolveBinding()) {
116 if (fIsInJavadoc)
117 fJavadocNodes.add(node);
118 else
119 fReferenceNodes.add(node);
120 }
121
122 return true;
123 }
124 }
125 |
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