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1
55
56 package org.apache.bsf.engines.javascript;
57
58 import org.mozilla.javascript.*;
59 import org.mozilla.javascript.debug.*;
60
61 import org.apache.bsf.debug.*;
62 import org.apache.bsf.debug.jsdi.*;
63
64 import java.rmi.RemoteException  ;
65
70
71 public class JsContextStub
72 extends org.apache.bsf.debug.util.Skeleton
73 implements JsContext {
74
75 RhinoContextProxy m_rcp;
76 RhinoEngineDebugger m_rhinoDbg;
77 DebugFrame m_frame;
78 int m_frameno;
79 boolean m_atBreakpoint;
80 boolean m_invalid;
81
82
85 public JsContextStub(RhinoContextProxy rcp, DebugFrame frame, int frameno)
86 throws RemoteException {
87 super(org.apache.bsf.debug.util.DebugConstants.JS_CONTEXT_TID);
88
89 m_rhinoDbg = rcp.getRhinoEngineDebugger();
90 m_rcp = rcp;
91 m_frame = frame;
92 m_frameno = frameno;
93 m_invalid = false;
94 m_atBreakpoint = true;
95 }
96 void atBreakpoint(boolean atbrkpt) {
98 m_atBreakpoint = atbrkpt;
99 }
100 public JsObject bind(String id) throws RemoteException {
101 try {
102 Context.enter();
103 Scriptable obj = m_frame.getVariableObject();
104 Object prop;
105 while (obj != null) {
106 Scriptable m = obj;
107 do {
108 if (m.has(id, obj))
109 return m_rhinoDbg.marshallScriptable(obj);
110 m = m.getPrototype();
111 } while (m != null);
112 obj = obj.getParentScope();
113 }
114 throw new JsdiException("Name not in scope.");
115 } finally {
116 Context.exit();
117 }
118 }
119 public JsCode getCode() {
121 if (m_invalid)
122 throw new JsdiException("This context no longer exists.");
123 if (!m_atBreakpoint)
124 throw new JsdiException("Resumed context, can't get the code.");
125
126 try {
127 Context.enter();
128 return null;
129 } finally {
130 Context.exit();
131 }
132 }
133 public int getDepth() {
134 return m_frameno;
135 }
136 public JsEngine getEngine() {
138 RhinoEngineDebugger redbg;
139 redbg = m_rcp.getRhinoEngineDebugger();
140 return (JsEngine) redbg.getDebugInterface();
141
142 }
143 public int getLineNumber() {
145 if (m_invalid)
146 throw new JsdiException("This context no longer exists.");
147 if (!m_atBreakpoint)
148 throw new JsdiException("Resumed context, can't get line number.");
149
150 try {
151 Context.enter();
152 return m_frame.getLineNumber();
153 } finally {
154 Context.exit();
155 }
156 }
157 public JsObject getScope() throws RemoteException {
159
160 if (m_invalid)
161 throw new JsdiException("This context no longer exists.");
162 if (!m_atBreakpoint)
163 throw new JsdiException("Resumed context, can't get line number.");
164
165 try {
166 Context.enter();
167 Scriptable varobj = m_frame.getVariableObject();
168 JsObject scope = m_rhinoDbg.marshallScriptable(varobj);
169 return scope;
170 } finally {
171 Context.exit();
172 }
173 }
174 public String getSourceName() {
176 if (m_invalid)
177 throw new JsdiException("This context no longer exists.");
178 if (!m_atBreakpoint)
179 throw new JsdiException("Resumed context, can't get line number.");
180
181 try {
182 Context.enter();
183 return m_frame.getSourceName();
184 } finally {
185 Context.exit();
186 }
187 }
188 public JsObject getThis() throws RemoteException {
190
191 if (m_invalid)
192 throw new JsdiException("This context no longer exists.");
193 if (!m_atBreakpoint)
194 throw new JsdiException("Resumed context, can't get line number.");
195
196 try {
197 Context.enter();
198 JsObject thisobj = null;
199 Scriptable obj = null;
200 NativeCall call = null;
201 Scriptable varobj = m_frame.getVariableObject();
202 if (varobj instanceof NativeCall) {
203 call = (NativeCall) varobj;
204 obj = call.getThisObj();
205 thisobj = m_rhinoDbg.marshallScriptable(varobj);
206 }
207 return thisobj;
208 } finally {
209 Context.exit();
210 }
211 }
212 void invalidate() {
214 m_invalid = true;
215 }
216 public boolean isEvalContext() {
218 if (m_invalid)
219 throw new JsdiException("This context no longer exists.");
220 if (!m_atBreakpoint)
221 throw new JsdiException("Resumed context, can't get line number.");
222
223 try {
224 Context.enter();
225 return false;
226 } finally {
227 Context.exit();
228 }
229 }
230 public boolean isFunctionContext() {
232 if (m_invalid)
233 throw new JsdiException("This context no longer exists.");
234 if (!m_atBreakpoint)
235 throw new JsdiException("Resumed context, can't get line number.");
236
237 try {
238 Context.enter();
239 return false;
240 } finally {
241 Context.exit();
242 }
243 }
244 public boolean isScriptContext() {
246 if (m_invalid)
247 throw new JsdiException("This context no longer exists.");
248 if (!m_atBreakpoint)
249 throw new JsdiException("Resumed context, can't get line number.");
250 try {
251 Context.enter();
252 return true;
253 } finally {
254 Context.exit();
255 }
256 }
257 public Object lookupName(String name) {
258
259 try {
260 Context.enter();
261 Scriptable obj = m_frame.getVariableObject();
262 Object prop;
263 while (obj != null) {
264 Scriptable m = obj;
265 do {
266 Object result = m.get(name, obj);
267 if (result != Scriptable.NOT_FOUND)
268 return result;
269 m = m.getPrototype();
270 } while (m != null);
271 obj = obj.getParentScope();
272 }
273 throw new JsdiException("Name is not in scope.");
274 } finally {
275 Context.exit();
276 }
277 }
278
281 public Object lookupName(Scriptable scopeChain, String id) {
282
283 try {
284 Context.enter();
285 Scriptable obj = scopeChain;
286 Object prop;
287 while (obj != null) {
288 Scriptable m = obj;
289 do {
290 Object result = m.get(id, obj);
291 if (result != Scriptable.NOT_FOUND)
292 return result;
293 m = m.getPrototype();
294 } while (m != null);
295 obj = obj.getParentScope();
296 }
297 return null;
298 } finally {
299 Context.exit();
300 }
301 }
302 }
303 |
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