|
1
11 package org.eclipse.jdt.internal.core;
12
13 import java.util.HashMap  ;
14
15 import org.eclipse.core.resources.IResource;
16 import org.eclipse.core.runtime.IPath;
17 import org.eclipse.core.runtime.IProgressMonitor;
18 import org.eclipse.jdt.core.*;
19 import org.eclipse.jdt.core.IJavaElement;
20 import org.eclipse.jdt.core.JavaModelException;
21 import org.eclipse.jdt.core.WorkingCopyOwner;
22 import org.eclipse.jdt.internal.core.util.MementoTokenizer;
23 import org.eclipse.jdt.internal.core.util.Util;
24
25
26 public class LocalVariable extends SourceRefElement implements ILocalVariable {
27
28 String name;
29 public int declarationSourceStart, declarationSourceEnd;
30 public int nameStart, nameEnd;
31 String typeSignature;
32
33 public LocalVariable(
34 JavaElement parent,
35 String name,
36 int declarationSourceStart,
37 int declarationSourceEnd,
38 int nameStart,
39 int nameEnd,
40 String typeSignature) {
41
42 super(parent);
43 this.name = name;
44 this.declarationSourceStart = declarationSourceStart;
45 this.declarationSourceEnd = declarationSourceEnd;
46 this.nameStart = nameStart;
47 this.nameEnd = nameEnd;
48 this.typeSignature = typeSignature;
49 }
50
51 protected void closing(Object info) {
52 }
54
55 protected Object createElementInfo() {
56 return null;
58 }
59
60 public boolean equals(Object o) {
61 if (!(o instanceof LocalVariable)) return false;
62 LocalVariable other = (LocalVariable)o;
63 return
64 this.declarationSourceStart == other.declarationSourceStart
65 && this.declarationSourceEnd == other.declarationSourceEnd
66 && this.nameStart == other.nameStart
67 && this.nameEnd == other.nameEnd
68 && super.equals(o);
69 }
70
71 public boolean exists() {
72 return this.parent.exists(); }
74
75 protected void generateInfos(Object info, HashMap newElements, IProgressMonitor pm) {
76 }
78
79 public IJavaElement getHandleFromMemento(String token, MementoTokenizer memento, WorkingCopyOwner owner) {
80 switch (token.charAt(0)) {
81 case JEM_COUNT:
82 return getHandleUpdatingCountFromMemento(memento, owner);
83 }
84 return this;
85 }
86
87
90 protected void getHandleMemento(StringBuffer buff) {
91 ((JavaElement)getParent()).getHandleMemento(buff);
92 buff.append(getHandleMementoDelimiter());
93 buff.append(this.name);
94 buff.append(JEM_COUNT);
95 buff.append(this.declarationSourceStart);
96 buff.append(JEM_COUNT);
97 buff.append(this.declarationSourceEnd);
98 buff.append(JEM_COUNT);
99 buff.append(this.nameStart);
100 buff.append(JEM_COUNT);
101 buff.append(this.nameEnd);
102 buff.append(JEM_COUNT);
103 buff.append(this.typeSignature);
104 if (this.occurrenceCount > 1) {
105 buff.append(JEM_COUNT);
106 buff.append(this.occurrenceCount);
107 }
108 }
109
110 protected char getHandleMementoDelimiter() {
111 return JavaElement.JEM_LOCALVARIABLE;
112 }
113
114 public IResource getCorrespondingResource() {
115 return null;
116 }
117
118 public String getElementName() {
119 return this.name;
120 }
121
122 public int getElementType() {
123 return LOCAL_VARIABLE;
124 }
125
126 public ISourceRange getNameRange() {
127 return new SourceRange(this.nameStart, this.nameEnd-this.nameStart+1);
128 }
129
130 public IPath getPath() {
131 return this.parent.getPath();
132 }
133
134 public IResource getResource() {
135 return this.parent.getResource();
136 }
137
138
141 public String getSource() throws JavaModelException {
142 IOpenable openable = this.parent.getOpenableParent();
143 IBuffer buffer = openable.getBuffer();
144 if (buffer == null) {
145 return null;
146 }
147 ISourceRange range = getSourceRange();
148 int offset = range.getOffset();
149 int length = range.getLength();
150 if (offset == -1 || length == 0 ) {
151 return null;
152 }
153 try {
154 return buffer.getText(offset, length);
155 } catch(RuntimeException e) {
156 return null;
157 }
158 }
159
160
163 public ISourceRange getSourceRange() {
164 return new SourceRange(this.declarationSourceStart, this.declarationSourceEnd-this.declarationSourceStart+1);
165 }
166
167 public String getTypeSignature() {
168 return this.typeSignature;
169 }
170
171 public IResource getUnderlyingResource() throws JavaModelException {
172 return this.parent.getUnderlyingResource();
173 }
174
175 public int hashCode() {
176 return Util.combineHashCodes(this.parent.hashCode(), this.nameStart);
177 }
178
179 public boolean isStructureKnown() throws JavaModelException {
180 return true;
181 }
182
183 protected void toStringInfo(int tab, StringBuffer buffer, Object info, boolean showResolvedInfo) {
184 buffer.append(this.tabString(tab));
185 if (info != NO_INFO) {
186 buffer.append(Signature.toString(this.getTypeSignature()));
187 buffer.append(" "); }
189 toStringName(buffer);
190 }
191 }
192 |
Popular Tags |
Java API By Example, From Geeks To Geeks.