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1
19
20 package org.netbeans.modules.java.codegen;
21
22 import java.util.*;
23 import java.lang.reflect.Modifier  ;
24
25 import javax.swing.text.Position ;
26 import javax.swing.text.StyledDocument ;
27
28 import org.openide.src.*;
29 import org.openide.text.CloneableEditorSupport;
30 import org.openide.text.PositionBounds;
31 import org.openide.text.PositionRef;
32
33 import org.netbeans.modules.java.bridge.Binding;
34
35
40 class Method extends Member implements Binding.Method {
41 boolean constructor;
42 String preexistingBody;
43
44 public Method(ConstructorElement el, SourceText s) {
45 super(el, s);
46 constructor = (!(el instanceof MethodElement));
47 }
48
49 public void create(PositionBounds b) throws SourceException {
50 super.create(b);
51 preexistingBody = null;
52 }
53
54 protected int classifyProperty(String name) {
55 if (name == PROP_BODY)
56 return CLASS_BODY;
57 else
58 return CLASS_HEADER;
59 }
60
61 private MethodElement cloneMethod() {
62 MethodElement el = new MethodElement();
63 copyProperties(el);
64 try {
65 el.setReturn(((MethodElement)getElement()).getReturn());
66 } catch (SourceException ex) {
67 }
69 return el;
70 }
71
72 protected Element cloneElement() {
73 Element orig = getElement();
74 ConstructorElement el = orig instanceof MethodElement ?
75 new MethodElement() : new ConstructorElement();
76 copyProperties(el);
77 return el;
78 }
79
80 protected void copyProperties(ConstructorElement target) {
81 ConstructorElement my = (ConstructorElement)getElement();
82 try {
83 target.setName(my.getName());
84 target.setParameters(my.getParameters());
85 target.setModifiers(my.getModifiers());
86 target.setExceptions(my.getExceptions());
87 if (my instanceof MethodElement)
88 ((MethodElement)target).setReturn(((MethodElement)my).getReturn());
89 } catch (SourceException ex) {
90 }
92 }
93
94
95
97 public void changeExceptions(Identifier[] exceptions) throws SourceException {
98 if (!source.isGeneratorEnabled())
99 return;
100 ConstructorElement el = (ConstructorElement)cloneElement();
101 el.setExceptions(exceptions);
102 regenerateHeader(el);
103 }
104
105
107 public void changeParameters(MethodParameter[] params) throws SourceException {
108 if (!source.isGeneratorEnabled())
109 return;
110 ConstructorElement el = (ConstructorElement)cloneElement();
111 el.setParameters(params);
112 regenerateHeader(el);
113 }
114
115
117 public void changeReturnType(Type type) throws SourceException {
118 if (!source.isGeneratorEnabled())
119 return;
120 MethodElement el = cloneMethod();
121 el.setReturn(type);
122 regenerateHeader(el);
123 }
124
125
128 public void changeModifiers(int newMods) throws SourceException {
129 if (!source.isGeneratorEnabled())
130 return;
131
132 ConstructorElement el = (ConstructorElement)cloneElement();
133 boolean isAbstract = Modifier.isAbstract(el.getModifiers());
134 boolean newAbstract = Modifier.isAbstract(newMods);
135 el.setModifiers(newMods);
136 regenerateHeader(el);
137 if (isAbstract!=newAbstract) {
138 if (newAbstract)
139 el.setBody(null);
140 else {
141 if (((ConstructorElement)getElement()).getBody()!=null)
142 return;
143 el.setBody("");
144 }
145 regenerateBody(el);
146 }
147 }
148
149 protected void regenerateBody(Element bean) throws SourceException {
150 ConstructorElement now = (ConstructorElement)bean;
151 ConstructorElement el = (ConstructorElement)getElement();
152 boolean existed = el.getBody() != null;
153 String newBody = now.getBody();
154
155 if (existed && newBody == null) {
156 makeAbstract();
157 } else if (!existed && newBody != null) {
158 createBody(newBody);
159 } else if (existed) {
160 changeBody(newBody);
161 }
162 }
163
164
166 public void createBody(String bodyText) throws SourceException {
167 if (!source.isGeneratorEnabled())
168 return;
169 final StyledDocument doc = findDocument();
170 final String s = CodeGenerator.normalizeBody(
171 ElementBinding.convertNewlines(bodyText), true);
172
173 source.runAtomic(getElement(), new ExceptionRunnable() {
174 public void run() throws Exception {
175 int afterHeader = headerBounds.getEnd().getOffset();
176 String text = CodeGenerator.formatText(doc, afterHeader,
177 " " + s); int end = afterHeader + text.length();
179
180 CloneableEditorSupport supp = source.getEditorSupport();
181 doc.insertString(afterHeader, text, null);
182 bodyBounds = new PositionBounds(
183 supp.createPositionRef(afterHeader + 1, Position.Bias.Forward),
184 supp.createPositionRef(end, Position.Bias.Backward)
185 );
186 doc.remove(end, wholeBounds.getEnd().getOffset() - end);
187 }
188 });
189 }
190
191
193 public String getBodyContent() throws SourceException {
194 if (preexistingBody != null)
195 return preexistingBody;
196
197 if (bodyBounds != null) {
198 return CodeGenerator.readTextBounds(bodyBounds);
199 } else {
200 return null;
201 }
202 }
203
204
207 public void makeAbstract() throws SourceException {
208 final StyledDocument doc = findDocument();
209
210 if (!source.isGeneratorEnabled())
211 return;
212 source.runAtomic(getElement(), new ExceptionRunnable() {
213 public void run() throws Exception {
214 int afterHeader = headerBounds.getEnd().getOffset();
215 int end = wholeBounds.getEnd().getOffset();
216
217 doc.insertString(afterHeader, ";", null); doc.remove(afterHeader + 1, end - afterHeader);
219 bodyBounds = null;
220
221 }
224 });
225 }
226
227
230 public void changeBody(String bodyString) throws SourceException {
231 if (!source.isGeneratorEnabled())
232 return;
233 final String normalized = CodeGenerator.normalizeBody(
234 ElementBinding.convertNewlines(bodyString), false)+"}"; final ElementBinding b = this;
236
237 source.runAtomic(getElement(), new ExceptionRunnable() {
238 public void run() throws Exception {
239 String formatted = CodeGenerator.formatText(
240 CodeGenerator.getDocument(b),
241 bodyBounds.getBegin(),
242 normalized);
243 String formattedBody = formatted.substring(0,formatted.lastIndexOf('}'));
244 CodeGenerator.fillTextBounds(bodyBounds,formattedBody);
245 }
246 });
247 }
248
249
252 public void updateFrom(Binding other) {
253 }
254
255 public void copyBody(String bodyString) {
256 preexistingBody = bodyString;
257 }
258 }
259 |
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