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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_DEBUG_LIVEEDIT_H_ | 5 #ifndef V8_DEBUG_LIVEEDIT_H_ |
6 #define V8_DEBUG_LIVEEDIT_H_ | 6 #define V8_DEBUG_LIVEEDIT_H_ |
7 | 7 |
8 | 8 |
9 // Live Edit feature implementation. | 9 // Live Edit feature implementation. |
10 // User should be able to change script on already running VM. This feature | 10 // User should be able to change script on already running VM. This feature |
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76 | 76 |
77 static bool SetAfterBreakTarget(Debug* debug); | 77 static bool SetAfterBreakTarget(Debug* debug); |
78 | 78 |
79 MUST_USE_RESULT static MaybeHandle<JSArray> GatherCompileInfo( | 79 MUST_USE_RESULT static MaybeHandle<JSArray> GatherCompileInfo( |
80 Handle<Script> script, | 80 Handle<Script> script, |
81 Handle<String> source); | 81 Handle<String> source); |
82 | 82 |
83 static void ReplaceFunctionCode(Handle<JSArray> new_compile_info_array, | 83 static void ReplaceFunctionCode(Handle<JSArray> new_compile_info_array, |
84 Handle<JSArray> shared_info_array); | 84 Handle<JSArray> shared_info_array); |
85 | 85 |
86 static void FixupScript(Handle<Script> script, int max_function_literal_id); | 86 static void FunctionSourceUpdated(Handle<JSArray> shared_info_array); |
87 | |
88 static void FunctionSourceUpdated(Handle<JSArray> shared_info_array, | |
89 int new_function_literal_id); | |
90 | 87 |
91 // Updates script field in FunctionSharedInfo. | 88 // Updates script field in FunctionSharedInfo. |
92 static void SetFunctionScript(Handle<JSValue> function_wrapper, | 89 static void SetFunctionScript(Handle<JSValue> function_wrapper, |
93 Handle<Object> script_handle); | 90 Handle<Object> script_handle); |
94 | 91 |
95 static void PatchFunctionPositions(Handle<JSArray> shared_info_array, | 92 static void PatchFunctionPositions(Handle<JSArray> shared_info_array, |
96 Handle<JSArray> position_change_array); | 93 Handle<JSArray> position_change_array); |
97 | 94 |
98 // For a script updates its source field. If old_script_name is provided | 95 // For a script updates its source field. If old_script_name is provided |
99 // (i.e. is a String), also creates a copy of the script with its original | 96 // (i.e. is a String), also creates a copy of the script with its original |
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274 // from JavaScript. It contains Code object, which is kept wrapped | 271 // from JavaScript. It contains Code object, which is kept wrapped |
275 // into a BlindReference for sanitizing reasons. | 272 // into a BlindReference for sanitizing reasons. |
276 class FunctionInfoWrapper : public JSArrayBasedStruct<FunctionInfoWrapper> { | 273 class FunctionInfoWrapper : public JSArrayBasedStruct<FunctionInfoWrapper> { |
277 public: | 274 public: |
278 explicit FunctionInfoWrapper(Handle<JSArray> array) | 275 explicit FunctionInfoWrapper(Handle<JSArray> array) |
279 : JSArrayBasedStruct<FunctionInfoWrapper>(array) { | 276 : JSArrayBasedStruct<FunctionInfoWrapper>(array) { |
280 } | 277 } |
281 | 278 |
282 void SetInitialProperties(Handle<String> name, int start_position, | 279 void SetInitialProperties(Handle<String> name, int start_position, |
283 int end_position, int param_num, int literal_count, | 280 int end_position, int param_num, int literal_count, |
284 int parent_index, int function_literal_id); | 281 int parent_index); |
285 | 282 |
286 void SetFunctionScopeInfo(Handle<Object> scope_info_array) { | 283 void SetFunctionScopeInfo(Handle<Object> scope_info_array) { |
287 this->SetField(kFunctionScopeInfoOffset_, scope_info_array); | 284 this->SetField(kFunctionScopeInfoOffset_, scope_info_array); |
288 } | 285 } |
289 | 286 |
290 void SetSharedFunctionInfo(Handle<SharedFunctionInfo> info); | 287 void SetSharedFunctionInfo(Handle<SharedFunctionInfo> info); |
291 | 288 |
292 Handle<SharedFunctionInfo> GetSharedFunctionInfo(); | 289 Handle<SharedFunctionInfo> GetSharedFunctionInfo(); |
293 | 290 |
294 int GetLiteralCount() { | 291 int GetLiteralCount() { |
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307 | 304 |
308 private: | 305 private: |
309 static const int kFunctionNameOffset_ = 0; | 306 static const int kFunctionNameOffset_ = 0; |
310 static const int kStartPositionOffset_ = 1; | 307 static const int kStartPositionOffset_ = 1; |
311 static const int kEndPositionOffset_ = 2; | 308 static const int kEndPositionOffset_ = 2; |
312 static const int kParamNumOffset_ = 3; | 309 static const int kParamNumOffset_ = 3; |
313 static const int kFunctionScopeInfoOffset_ = 4; | 310 static const int kFunctionScopeInfoOffset_ = 4; |
314 static const int kParentIndexOffset_ = 5; | 311 static const int kParentIndexOffset_ = 5; |
315 static const int kSharedFunctionInfoOffset_ = 6; | 312 static const int kSharedFunctionInfoOffset_ = 6; |
316 static const int kLiteralNumOffset_ = 7; | 313 static const int kLiteralNumOffset_ = 7; |
317 static const int kFunctionLiteralIdOffset_ = 8; | 314 static const int kSize_ = 8; |
318 static const int kSize_ = 9; | |
319 | 315 |
320 friend class JSArrayBasedStruct<FunctionInfoWrapper>; | 316 friend class JSArrayBasedStruct<FunctionInfoWrapper>; |
321 }; | 317 }; |
322 | 318 |
323 | 319 |
324 // Wraps SharedFunctionInfo along with some of its fields for passing it | 320 // Wraps SharedFunctionInfo along with some of its fields for passing it |
325 // back to JavaScript. SharedFunctionInfo object itself is additionally | 321 // back to JavaScript. SharedFunctionInfo object itself is additionally |
326 // wrapped into BlindReference for sanitizing reasons. | 322 // wrapped into BlindReference for sanitizing reasons. |
327 class SharedInfoWrapper : public JSArrayBasedStruct<SharedInfoWrapper> { | 323 class SharedInfoWrapper : public JSArrayBasedStruct<SharedInfoWrapper> { |
328 public: | 324 public: |
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353 static const int kSharedInfoOffset_ = 3; | 349 static const int kSharedInfoOffset_ = 3; |
354 static const int kSize_ = 4; | 350 static const int kSize_ = 4; |
355 | 351 |
356 friend class JSArrayBasedStruct<SharedInfoWrapper>; | 352 friend class JSArrayBasedStruct<SharedInfoWrapper>; |
357 }; | 353 }; |
358 | 354 |
359 } // namespace internal | 355 } // namespace internal |
360 } // namespace v8 | 356 } // namespace v8 |
361 | 357 |
362 #endif /* V8_DEBUG_LIVEEDIT_H_ */ | 358 #endif /* V8_DEBUG_LIVEEDIT_H_ */ |
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