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| 1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 137 * debugger takes ownership of the data and will delete it even if there is | 137 * debugger takes ownership of the data and will delete it even if there is |
| 138 * no message handler. | 138 * no message handler. |
| 139 */ | 139 */ |
| 140 virtual ClientData* GetClientData() const = 0; | 140 virtual ClientData* GetClientData() const = 0; |
| 141 | 141 |
| 142 virtual ~Message() {} | 142 virtual ~Message() {} |
| 143 }; | 143 }; |
| 144 | 144 |
| 145 | 145 |
| 146 /** | 146 /** |
| 147 * An event details object passed to the debug event listener. |
| 148 */ |
| 149 class EventDetails { |
| 150 public: |
| 151 /** |
| 152 * Event type. |
| 153 */ |
| 154 virtual DebugEvent GetEvent() const = 0; |
| 155 |
| 156 /** |
| 157 * Access to execution state and event data of the debug event. Don't store |
| 158 * these cross callbacks as their content becomes invalid. |
| 159 */ |
| 160 virtual Handle<Object> GetExecutionState() const = 0; |
| 161 virtual Handle<Object> GetEventData() const = 0; |
| 162 |
| 163 /** |
| 164 * Get the context active when the debug event happened. Note this is not |
| 165 * the current active context as the JavaScript part of the debugger is |
| 166 * running in it's own context which is entered at this point. |
| 167 */ |
| 168 virtual Handle<Context> GetEventContext() const = 0; |
| 169 |
| 170 /** |
| 171 * Client data passed with the corresponding callbak whet it was registered. |
| 172 */ |
| 173 virtual Handle<Value> GetCallbackData() const = 0; |
| 174 |
| 175 virtual ~EventDetails() {} |
| 176 }; |
| 177 |
| 178 |
| 179 /** |
| 147 * Debug event callback function. | 180 * Debug event callback function. |
| 148 * | 181 * |
| 149 * \param event the type of the debug event that triggered the callback | 182 * \param event the type of the debug event that triggered the callback |
| 150 * (enum DebugEvent) | 183 * (enum DebugEvent) |
| 151 * \param exec_state execution state (JavaScript object) | 184 * \param exec_state execution state (JavaScript object) |
| 152 * \param event_data event specific data (JavaScript object) | 185 * \param event_data event specific data (JavaScript object) |
| 153 * \param data value passed by the user to SetDebugEventListener | 186 * \param data value passed by the user to SetDebugEventListener |
| 154 */ | 187 */ |
| 155 typedef void (*EventCallback)(DebugEvent event, | 188 typedef void (*EventCallback)(DebugEvent event, |
| 156 Handle<Object> exec_state, | 189 Handle<Object> exec_state, |
| 157 Handle<Object> event_data, | 190 Handle<Object> event_data, |
| 158 Handle<Value> data); | 191 Handle<Value> data); |
| 159 | 192 |
| 193 /** |
| 194 * Debug event callback function. |
| 195 * |
| 196 * \param event_details object providing information about the debug event |
| 197 * |
| 198 * A EventCallback2 does not take possession of the event data, |
| 199 * and must not rely on the data persisting after the handler returns. |
| 200 */ |
| 201 typedef void (*EventCallback2)(const EventDetails& event_details); |
| 160 | 202 |
| 161 /** | 203 /** |
| 162 * Debug message callback function. | 204 * Debug message callback function. |
| 163 * | 205 * |
| 164 * \param message the debug message handler message object | 206 * \param message the debug message handler message object |
| 165 * \param length length of the message | 207 * \param length length of the message |
| 166 * \param client_data the data value passed when registering the message handl
er | 208 * \param client_data the data value passed when registering the message handl
er |
| 167 | 209 |
| 168 * A MessageHandler does not take posession of the message string, | 210 * A MessageHandler does not take possession of the message string, |
| 169 * and must not rely on the data persisting after the handler returns. | 211 * and must not rely on the data persisting after the handler returns. |
| 170 * | 212 * |
| 171 * This message handler is deprecated. Use MessageHandler2 instead. | 213 * This message handler is deprecated. Use MessageHandler2 instead. |
| 172 */ | 214 */ |
| 173 typedef void (*MessageHandler)(const uint16_t* message, int length, | 215 typedef void (*MessageHandler)(const uint16_t* message, int length, |
| 174 ClientData* client_data); | 216 ClientData* client_data); |
| 175 | 217 |
| 176 /** | 218 /** |
| 177 * Debug message callback function. | 219 * Debug message callback function. |
| 178 * | 220 * |
| 179 * \param message the debug message handler message object | 221 * \param message the debug message handler message object |
| 180 | 222 |
| 181 * A MessageHandler does not take posession of the message data, | 223 * A MessageHandler does not take possession of the message data, |
| 182 * and must not rely on the data persisting after the handler returns. | 224 * and must not rely on the data persisting after the handler returns. |
| 183 */ | 225 */ |
| 184 typedef void (*MessageHandler2)(const Message& message); | 226 typedef void (*MessageHandler2)(const Message& message); |
| 185 | 227 |
| 186 /** | 228 /** |
| 187 * Debug host dispatch callback function. | 229 * Debug host dispatch callback function. |
| 188 */ | 230 */ |
| 189 typedef void (*HostDispatchHandler)(); | 231 typedef void (*HostDispatchHandler)(); |
| 190 | 232 |
| 191 /** | 233 /** |
| 192 * Callback function for the host to ensure debug messages are processed. | 234 * Callback function for the host to ensure debug messages are processed. |
| 193 */ | 235 */ |
| 194 typedef void (*DebugMessageDispatchHandler)(); | 236 typedef void (*DebugMessageDispatchHandler)(); |
| 195 | 237 |
| 196 // Set a C debug event listener. | 238 // Set a C debug event listener. |
| 197 static bool SetDebugEventListener(EventCallback that, | 239 static bool SetDebugEventListener(EventCallback that, |
| 198 Handle<Value> data = Handle<Value>()); | 240 Handle<Value> data = Handle<Value>()); |
| 241 static bool SetDebugEventListener2(EventCallback2 that, |
| 242 Handle<Value> data = Handle<Value>()); |
| 199 | 243 |
| 200 // Set a JavaScript debug event listener. | 244 // Set a JavaScript debug event listener. |
| 201 static bool SetDebugEventListener(v8::Handle<v8::Object> that, | 245 static bool SetDebugEventListener(v8::Handle<v8::Object> that, |
| 202 Handle<Value> data = Handle<Value>()); | 246 Handle<Value> data = Handle<Value>()); |
| 203 | 247 |
| 204 // Break execution of JavaScript. | 248 // Break execution of JavaScript. |
| 205 static void DebugBreak(); | 249 static void DebugBreak(); |
| 206 | 250 |
| 207 // Message based interface. The message protocol is JSON. NOTE the message | 251 // Message based interface. The message protocol is JSON. NOTE the message |
| 208 // handler thread is not supported any more parameter must be false. | 252 // handler thread is not supported any more parameter must be false. |
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| 314 }; | 358 }; |
| 315 | 359 |
| 316 | 360 |
| 317 } // namespace v8 | 361 } // namespace v8 |
| 318 | 362 |
| 319 | 363 |
| 320 #undef EXPORT | 364 #undef EXPORT |
| 321 | 365 |
| 322 | 366 |
| 323 #endif // V8_V8_DEBUG_H_ | 367 #endif // V8_V8_DEBUG_H_ |
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