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1
11 package org.eclipse.jdt.internal.ui.search;
12
13 import java.util.ArrayList  ;
14 import java.util.Collection ;
15 import java.util.Iterator ;
16 import java.util.List ;
17
18 import org.eclipse.jface.text.BadLocationException;
19 import org.eclipse.jface.text.IDocument;
20 import org.eclipse.jface.text.IRegion;
21
22 import org.eclipse.search.ui.text.Match;
23
24 import org.eclipse.jdt.core.IJavaElement;
25 import org.eclipse.jdt.core.dom.ASTNode;
26 import org.eclipse.jdt.core.dom.ASTVisitor;
27 import org.eclipse.jdt.core.dom.AbstractTypeDeclaration;
28 import org.eclipse.jdt.core.dom.AnonymousClassDeclaration;
29 import org.eclipse.jdt.core.dom.CompilationUnit;
30 import org.eclipse.jdt.core.dom.IMethodBinding;
31 import org.eclipse.jdt.core.dom.ITypeBinding;
32 import org.eclipse.jdt.core.dom.MethodDeclaration;
33 import org.eclipse.jdt.core.dom.Name;
34 import org.eclipse.jdt.core.dom.Type;
35 import org.eclipse.jdt.core.dom.TypeDeclarationStatement;
36
37 import org.eclipse.jdt.internal.corext.dom.ASTNodes;
38 import org.eclipse.jdt.internal.corext.dom.Bindings;
39 import org.eclipse.jdt.internal.corext.dom.NodeFinder;
40
41
42
47 public class ImplementOccurrencesFinder implements org.eclipse.jdt.internal.ui.search.IOccurrencesFinder {
48
49
50 private class MethodVisitor extends ASTVisitor {
51
52
55 public boolean visit(MethodDeclaration node) {
56 IMethodBinding binding= node.resolveBinding();
57 if (binding != null) {
58 IMethodBinding method= Bindings.findOverriddenMethodInHierarchy(fSelectedType, binding);
59 if (method != null)
60 fResult.add(node.getName());
61 }
62 return super.visit(node);
63 }
64
65
68 public boolean visit(AnonymousClassDeclaration node) {
69 return false;
71 }
72
73
76 public boolean visit(TypeDeclarationStatement node) {
77 return false;
79 }
80 }
81
82
83 private ASTNode fStart;
84 private List fResult;
85 private ASTNode fSelectedNode;
86 private ITypeBinding fSelectedType;
87
88 public ImplementOccurrencesFinder() {
89 fResult= new ArrayList ();
90 }
91
92 public String initialize(CompilationUnit root, int offset, int length) {
93 return initialize(root, NodeFinder.perform(root, offset, length));
94 }
95
96 public String initialize(CompilationUnit root, ASTNode node) {
97 if (!(node instanceof Name))
98 return SearchMessages.ImplementOccurrencesFinder_invalidTarget;
99
100 fSelectedNode= ASTNodes.getNormalizedNode(node);
101 if (!(fSelectedNode instanceof Type))
102 return SearchMessages.ImplementOccurrencesFinder_invalidTarget;
103
104 ASTNode typeDeclaration= fSelectedNode.getParent();
105 if (!(typeDeclaration instanceof AbstractTypeDeclaration))
106 return SearchMessages.ImplementOccurrencesFinder_invalidTarget;
107
108 fSelectedType= ((Type)fSelectedNode).resolveBinding();
109 if (fSelectedType == null)
110 return SearchMessages.ImplementOccurrencesFinder_invalidTarget;
111
112 fStart= typeDeclaration;
113 return null;
114 }
115
116
119 public List perform() {
120 fStart.accept(new MethodVisitor());
121 if (fSelectedNode != null)
122 fResult.add(fSelectedNode);
123
124 return fResult;
125 }
126
127 public void collectOccurrenceMatches(IJavaElement element, IDocument document, Collection resultingMatches) {
128 for (Iterator iter= fResult.iterator(); iter.hasNext();) {
129 ASTNode node= (ASTNode) iter.next();
130 int startPosition= node.getStartPosition();
131 int length= node.getLength();
132 try {
133 int line= document.getLineOfOffset(startPosition);
134 IRegion region= document.getLineInformation(line);
135 String lineContents= document.get(region.getOffset(), region.getLength()).trim();
136 JavaElementLine groupKey= new JavaElementLine(element, line, lineContents);
137 resultingMatches.add(new Match(groupKey, startPosition, length));
138 } catch (BadLocationException e) {
139 }
141 }
142 }
143
144
147 public String getJobLabel() {
148 return SearchMessages.ImplementOccurrencesFinder_searchfor ;
149 }
150
151 public String getElementName() {
152 if (fSelectedNode != null) {
153 return ASTNodes.asString(fSelectedNode);
154 }
155 return null;
156 }
157
158 public String getUnformattedPluralLabel() {
159 return SearchMessages.ImplementOccurrencesFinder_label_plural;
160 }
161
162 public String getUnformattedSingularLabel() {
163 return SearchMessages.ImplementOccurrencesFinder_label_singular;
164 }
165
166 public void releaseAST() {
167 fStart= null;
168 fSelectedType= null;
169 }
170
171 }
172 |
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