-
Notifications
You must be signed in to change notification settings - Fork 153
/
Copy pathV8ContextImpl.cpp
4955 lines (4007 loc) · 181 KB
/
V8ContextImpl.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
#include "ClearScriptV8Native.h"
//-----------------------------------------------------------------------------
// support for v8::Maybe and v8::MaybeLocal
//-----------------------------------------------------------------------------
class FromMaybeScope final
{
};
//-----------------------------------------------------------------------------
class FromMaybeFailure final
{
};
//-----------------------------------------------------------------------------
template <typename T>
inline T FromMaybe(FromMaybeScope& /*scope*/, const v8::Maybe<T>& maybe)
{
T result;
if (maybe.To(&result))
{
return result;
}
throw FromMaybeFailure();
}
//-----------------------------------------------------------------------------
template <typename T>
inline v8::Local<T> FromMaybe(FromMaybeScope& /*scope*/, const v8::MaybeLocal<T>& maybe)
{
v8::Local<T> result;
if (maybe.ToLocal(&result))
{
return result;
}
throw FromMaybeFailure();
}
//-----------------------------------------------------------------------------
template <typename T>
inline T FromMaybeDefault(const v8::Maybe<T>& maybe, const T& defaultValue = T())
{
return maybe.FromMaybe(defaultValue);
}
//-----------------------------------------------------------------------------
template <typename T>
inline v8::Local<T> FromMaybeDefault(const v8::MaybeLocal<T>& maybe, const v8::Local<T>& defaultValue = v8::Local<T>())
{
return maybe.FromMaybe(defaultValue);
}
//-----------------------------------------------------------------------------
#define FROM_MAYBE_TRY \
{ \
DISABLE_WARNING(4456) /* declaration hides previous local declaration */ \
FromMaybeScope t_FromMaybeScope; \
DEFAULT_WARNING(4456) \
try \
{
#define FROM_MAYBE_CATCH \
IGNORE_UNUSED(t_FromMaybeScope); \
} \
catch (const FromMaybeFailure&) \
{ \
#define FROM_MAYBE_END \
IGNORE_UNUSED(t_FromMaybeScope); \
} \
}
#define FROM_MAYBE_CATCH_CONSUME \
FROM_MAYBE_CATCH \
FROM_MAYBE_END
#define FROM_MAYBE(...) \
(::FromMaybe(t_FromMaybeScope, __VA_ARGS__))
#define FROM_MAYBE_DEFAULT(...) \
(::FromMaybeDefault(__VA_ARGS__))
//-----------------------------------------------------------------------------
// local helper functions
//-----------------------------------------------------------------------------
inline v8::Local<v8::String> ValueAsString(const v8::Local<v8::Value>& hValue)
{
if (hValue.IsEmpty())
{
return v8::Local<v8::String>();
}
if (hValue->IsString())
{
return hValue.As<v8::String>();
}
if (hValue->IsStringObject())
{
return hValue.As<v8::StringObject>()->ValueOf();
}
return v8::Local<v8::String>();
}
//-----------------------------------------------------------------------------
inline v8::Local<v8::Object> ValueAsObject(const v8::Local<v8::Value>& hValue)
{
return (!hValue.IsEmpty() && hValue->IsObject()) ? hValue.As<v8::Object>() : v8::Local<v8::Object>();
}
//-----------------------------------------------------------------------------
inline v8::Local<v8::External> ValueAsExternal(const v8::Local<v8::Value>& hValue)
{
return (!hValue.IsEmpty() && hValue->IsExternal()) ? hValue.As<v8::External>() : v8::Local<v8::External>();
}
//-----------------------------------------------------------------------------
inline v8::Local<v8::BigInt> ValueAsBigInt(const v8::Local<v8::Value>& hValue)
{
if (hValue.IsEmpty())
{
return v8::Local<v8::BigInt>();
}
if (hValue->IsBigInt())
{
return hValue.As<v8::BigInt>();
}
if (hValue->IsBigIntObject())
{
return hValue.As<v8::BigIntObject>()->ValueOf();
}
return v8::Local<v8::BigInt>();
}
//-----------------------------------------------------------------------------
inline bool TryGetValueAsBoolean(const SharedPtr<V8IsolateImpl>& spIsolateImpl, const v8::Local<v8::Value>& hValue, bool& value)
{
if (hValue.IsEmpty())
{
return false;
}
if (hValue->IsBoolean())
{
value = spIsolateImpl->BooleanValue(hValue);
return true;
}
if (hValue->IsBooleanObject())
{
value = hValue.As<v8::BooleanObject>()->ValueOf();
return true;
}
return false;
}
//-----------------------------------------------------------------------------
inline bool TryGetValueAsNumber(v8::Local<v8::Context> hContext, const v8::Local<v8::Value>& hValue, double& value)
{
if (hValue.IsEmpty())
{
return false;
}
FROM_MAYBE_TRY
if (hValue->IsNumber())
{
value = FROM_MAYBE(hValue->NumberValue(hContext));
return true;
}
if (hValue->IsNumberObject())
{
value = hValue.As<v8::NumberObject>()->ValueOf();
return true;
}
FROM_MAYBE_CATCH_CONSUME
return false;
}
//-----------------------------------------------------------------------------
template <typename TInfo>
inline V8ContextImpl* GetContextImplFromHolder(const TInfo& info)
{
auto hHolder = info.HolderV2();
if (!hHolder.IsEmpty() && hHolder->InternalFieldCount() > 0)
{
auto hField = hHolder->GetInternalField(0);
if (!hField.IsEmpty() && hField->IsValue() && !hField.template As<v8::Value>()->IsUndefined())
{
return static_cast<V8ContextImpl*>(hHolder->GetAlignedPointerFromInternalField(0));
}
}
return nullptr;
}
//-----------------------------------------------------------------------------
template <typename TInfo>
inline V8ContextImpl* GetContextImplFromData(const TInfo& info)
{
auto hContextImpl = ::ValueAsExternal(info.Data());
return !hContextImpl.IsEmpty() ? static_cast<V8ContextImpl*>(hContextImpl->Value()) : nullptr;
}
//-----------------------------------------------------------------------------
template <typename TVariable, typename TValue>
inline void SetIfSameType(TVariable& /*variable*/, TValue /*value*/)
{
}
//-----------------------------------------------------------------------------
template <typename TVariable>
inline void SetIfSameType(TVariable& variable, TVariable value)
{
variable = value;
}
//-----------------------------------------------------------------------------
template <typename T>
inline v8::Intercepted GetCallbackStatus(const T& /*value*/)
{
return v8::Intercepted::kYes;
}
//-----------------------------------------------------------------------------
template <typename T>
inline v8::Intercepted GetCallbackStatus(const v8::Local<T>& hValue)
{
return hValue.IsEmpty() ? v8::Intercepted::kNo : v8::Intercepted::kYes;
}
//-----------------------------------------------------------------------------
template <typename TInfo, typename TResult, typename TStatus>
inline void ProcessCallbackResult(const TResult& result, const TInfo& info, TStatus& status)
{
::SetIfSameType(status, ::GetCallbackStatus(result));
info.GetReturnValue().Set(result);
}
//-----------------------------------------------------------------------------
template <typename TInfo, typename TStatus>
inline void ProcessVoidCallbackResult(const TInfo& info, TStatus& status)
{
IGNORE_UNUSED(info);
::SetIfSameType(status, v8::Intercepted::kYes);
}
//-----------------------------------------------------------------------------
// V8ContextImpl implementation
//-----------------------------------------------------------------------------
#define BEGIN_ISOLATE_SCOPE \
{ \
DISABLE_WARNING(4456) /* declaration hides previous local declaration */ \
V8IsolateImpl::Scope t_IsolateScope(*m_spIsolateImpl); \
DEFAULT_WARNING(4456)
#define END_ISOLATE_SCOPE \
IGNORE_UNUSED(t_IsolateScope); \
}
#define BEGIN_CONTEXT_SCOPE \
{ \
DISABLE_WARNING(4456) /* declaration hides previous local declaration */ \
Scope t_ContextScope(this); \
DEFAULT_WARNING(4456)
#define END_CONTEXT_SCOPE \
IGNORE_UNUSED(t_ContextScope); \
}
#define BEGIN_EXECUTION_SCOPE \
{ \
DISABLE_WARNING(4456) /* declaration hides previous local declaration */ \
V8IsolateImpl::ExecutionScope t_ExecutionScope(*m_spIsolateImpl); \
V8IsolateImpl::TryCatch t_TryCatch(*m_spIsolateImpl); \
DEFAULT_WARNING(4456)
#define END_EXECUTION_SCOPE \
IGNORE_UNUSED(t_TryCatch); \
IGNORE_UNUSED(t_ExecutionScope); \
}
#define EXECUTION_STARTED \
(t_ExecutionScope.ExecutionStarted())
#define BEGIN_DOCUMENT_SCOPE(DOCUMENT_INFO) \
{ \
DISABLE_WARNING(4456) /* declaration hides previous local declaration */ \
V8IsolateImpl::DocumentScope t_DocumentScope(*m_spIsolateImpl, DOCUMENT_INFO); \
DEFAULT_WARNING(4456)
#define END_DOCUMENT_SCOPE \
IGNORE_UNUSED(t_DocumentScope); \
}
#define VERIFY(RESULT) \
(Verify(t_ExecutionScope, t_TryCatch, RESULT))
#define VERIFY_MAYBE(RESULT) \
VERIFY(FROM_MAYBE_DEFAULT(RESULT))
#define VERIFY_CHECKPOINT() \
(Verify(t_ExecutionScope, t_TryCatch))
#define CALLBACK_RETURN(RESULT) \
BEGIN_COMPOUND_MACRO \
::ProcessCallbackResult(RESULT, info, t_CallbackStatus); \
return; \
END_COMPOUND_MACRO
#define CALLBACK_RETURN_VOID() \
BEGIN_COMPOUND_MACRO \
::ProcessVoidCallbackResult(info, t_CallbackStatus); \
return; \
END_COMPOUND_MACRO
#define CALLBACK_ENTER \
auto t_CallbackStatus = v8::Intercepted::kNo; \
([&] () noexcept -> void \
{ \
#define CALLBACK_EXIT \
} \
)(); \
return t_CallbackStatus;
constexpr enum class DummyCallbackStatus {} t_CallbackStatus {};
//-----------------------------------------------------------------------------
static std::atomic<size_t> s_InstanceCount(0);
//-----------------------------------------------------------------------------
V8ContextImpl::V8ContextImpl(V8IsolateImpl* pIsolateImpl, const StdString& name):
V8ContextImpl(SharedPtr<V8IsolateImpl>(pIsolateImpl), name, Options())
{
}
//-----------------------------------------------------------------------------
V8ContextImpl::V8ContextImpl(SharedPtr<V8IsolateImpl>&& spIsolateImpl, const StdString& name, const Options& options):
m_Name(name),
m_spIsolateImpl(std::move(spIsolateImpl)),
m_DateTimeConversionEnabled(::HasFlag(options.Flags, Flags::EnableDateTimeConversion)),
m_HideHostExceptions(::HasFlag(options.Flags, Flags::HideHostExceptions)),
m_AllowHostObjectConstructorCall(false),
m_ChangedTimerResolution(false),
m_pvV8ObjectCache(nullptr)
{
VerifyNotOutOfMemory();
if (::HasAllFlags(options.Flags, Flags::AddPerformanceObject, Flags::SetTimerResolution))
{
m_ChangedTimerResolution = HighResolutionClock::SetTimerResolution();
}
auto timeOrigin = HighResolutionClock::GetMillisecondsSinceUnixEpoch();
m_RelativeTimeOrigin = HighResolutionClock::GetRelativeMilliseconds();
BEGIN_ISOLATE_SCOPE
FROM_MAYBE_TRY
if (::HasFlag(options.Flags, Flags::DisableGlobalMembers))
{
m_hContext = CreatePersistent(CreateContext());
}
else
{
auto hGlobalTemplate = CreateObjectTemplate();
hGlobalTemplate->SetInternalFieldCount(1);
hGlobalTemplate->SetHandler(v8::NamedPropertyHandlerConfiguration(GetGlobalProperty, SetGlobalProperty, QueryGlobalProperty, DeleteGlobalProperty, GetGlobalPropertyNames, v8::Local<v8::Value>(), v8::PropertyHandlerFlags::kNonMasking));
hGlobalTemplate->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetGlobalProperty, SetGlobalProperty, QueryGlobalProperty, DeleteGlobalProperty, GetGlobalPropertyIndices));
m_hContext = CreatePersistent(CreateContext(nullptr, hGlobalTemplate));
if (!m_hContext.IsEmpty())
{
auto hGlobal = m_hContext->Global();
if (!hGlobal.IsEmpty() && (hGlobal->InternalFieldCount() > 0))
{
hGlobal->SetAlignedPointerInInternalField(0, this);
}
}
}
if (m_hContext.IsEmpty())
{
throw FromMaybeFailure();
}
auto hContextImpl = CreateExternal(this);
v8::Local<v8::FunctionTemplate> hGetHostObjectIteratorFunction;
v8::Local<v8::FunctionTemplate> hGetHostObjectAsyncIteratorFunction;
v8::Local<v8::FunctionTemplate> hGetFastHostObjectIteratorFunction;
v8::Local<v8::FunctionTemplate> hGetFastHostObjectAsyncIteratorFunction;
v8::Local<v8::FunctionTemplate> hGetHostObjectJsonFunction;
v8::Local<v8::FunctionTemplate> hHostDelegateToFunctionFunction;
BEGIN_CONTEXT_SCOPE
m_hContext->SetAlignedPointerInEmbedderData(1, this);
m_hIsHostObjectKey = CreatePersistent(CreateSymbol());
ASSERT_EVAL(FROM_MAYBE(m_hContext->Global()->Set(m_hContext, CreateString("isHostObjectKey"), m_hIsHostObjectKey)));
m_hModuleResultKey = CreatePersistent(CreateSymbol());
ASSERT_EVAL(FROM_MAYBE(m_hContext->Global()->Set(m_hContext, CreateString("moduleResultKey"), m_hModuleResultKey)));
ASSERT_EVAL(FROM_MAYBE(m_hContext->Global()->Set(m_hContext, CreateString("getPromiseState"), FROM_MAYBE(v8::Function::New(m_hContext, GetPromiseStateCallback, hContextImpl)))));
ASSERT_EVAL(FROM_MAYBE(m_hContext->Global()->Set(m_hContext, CreateString("getPromiseResult"), FROM_MAYBE(v8::Function::New(m_hContext, GetPromiseResultCallback, hContextImpl)))));
m_hMissingPropertyValue = CreatePersistent(CreateSymbol());
m_hHostExceptionKey = CreatePersistent(CreateString("hostException"));
m_hCacheKey = CreatePersistent(CreatePrivate());
m_hAccessTokenKey = CreatePersistent(CreatePrivate());
m_hInternalUseOnly = CreatePersistent(CreateString("The invoked function is for ClearScript internal use only"));
m_hStackKey = CreatePersistent(CreateString("stack"));
m_hObjectNotInvocable = CreatePersistent(CreateString("The object does not support invocation"));
m_hMethodOrPropertyNotFound = CreatePersistent(CreateString("Method or property not found"));
m_hPropertyValueNotInvocable = CreatePersistent(CreateString("The property value does not support invocation"));
m_hInvalidModuleRequest = CreatePersistent(CreateString("Invalid module load request"));
m_hConstructorKey = CreatePersistent(CreateString("constructor"));
m_hSetModuleResultKey = CreatePersistent(CreateString("setResult"));
hGetHostObjectIteratorFunction = CreateFunctionTemplate(GetHostObjectIterator, hContextImpl);
hGetHostObjectAsyncIteratorFunction = CreateFunctionTemplate(GetHostObjectAsyncIterator, hContextImpl);
hGetFastHostObjectIteratorFunction = CreateFunctionTemplate(GetFastHostObjectIterator, hContextImpl);
hGetFastHostObjectAsyncIteratorFunction = CreateFunctionTemplate(GetFastHostObjectAsyncIterator, hContextImpl);
hGetHostObjectJsonFunction = CreateFunctionTemplate(GetHostObjectJson, hContextImpl);
hHostDelegateToFunctionFunction = CreateFunctionTemplate(CreateFunctionForHostDelegate, hContextImpl);
m_hAccessToken = CreatePersistent(CreateObject());
m_hFlushFunction = CreatePersistent(FROM_MAYBE(v8::Function::New(m_hContext, FlushCallback)));
m_hTerminationException = CreatePersistent(v8::Exception::Error(CreateString("Script execution was interrupted")));
if (::HasFlag(options.Flags, Flags::AddPerformanceObject))
{
auto hPerformance = CreateObject();
ASSERT_EVAL(FROM_MAYBE(hPerformance->DefineOwnProperty(m_hContext, CreateString("timeOrigin"), CreateNumber(timeOrigin), ::CombineFlags(v8::ReadOnly, v8::DontDelete))));
ASSERT_EVAL(FROM_MAYBE(hPerformance->DefineOwnProperty(m_hContext, CreateString("now"), FROM_MAYBE(v8::Function::New(m_hContext, PerformanceNowCallback, hContextImpl)), ::CombineFlags(v8::ReadOnly, v8::DontDelete))));
ASSERT_EVAL(FROM_MAYBE(hPerformance->DefineOwnProperty(m_hContext, CreateString("sleep"), FROM_MAYBE(v8::Function::New(m_hContext, PerformanceSleepCallback, hContextImpl)), ::CombineFlags(v8::ReadOnly, v8::DontDelete))));
ASSERT_EVAL(FROM_MAYBE(m_hContext->Global()->DefineOwnProperty(m_hContext, CreateString("Performance"), hPerformance, v8::DontEnum)));
}
END_CONTEXT_SCOPE
auto hToJSON = CreateString("toJSON");
m_hHostObjectTemplate = CreatePersistent(CreateFunctionTemplate());
m_hHostObjectTemplate->SetClassName(CreateString("HostObject"));
m_hHostObjectTemplate->SetCallHandler(HostObjectConstructorCallHandler, hContextImpl);
m_hHostObjectTemplate->InstanceTemplate()->SetHandler(v8::NamedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyNames, hContextImpl, v8::PropertyHandlerFlags::kNone));
m_hHostObjectTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyIndices, hContextImpl));
m_hHostObjectTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetHostObjectIteratorFunction);
m_hHostObjectTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetHostObjectAsyncIteratorFunction);
m_hHostObjectTemplate->PrototypeTemplate()->Set(hToJSON, hGetHostObjectJsonFunction, ::CombineFlags(v8::ReadOnly, v8::DontDelete, v8::DontEnum));
m_hHostInvocableTemplate = CreatePersistent(CreateFunctionTemplate());
m_hHostInvocableTemplate->SetClassName(CreateString("HostInvocable"));
m_hHostInvocableTemplate->SetCallHandler(HostObjectConstructorCallHandler, hContextImpl);
m_hHostInvocableTemplate->InstanceTemplate()->SetHandler(v8::NamedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyNames, hContextImpl, v8::PropertyHandlerFlags::kNone));
m_hHostInvocableTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyIndices, hContextImpl));
m_hHostInvocableTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetHostObjectIteratorFunction);
m_hHostInvocableTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetHostObjectAsyncIteratorFunction);
m_hHostInvocableTemplate->PrototypeTemplate()->Set(hToJSON, hGetHostObjectJsonFunction, ::CombineFlags(v8::ReadOnly, v8::DontDelete, v8::DontEnum));
m_hHostInvocableTemplate->InstanceTemplate()->SetCallAsFunctionHandler(InvokeHostObject, hContextImpl);
m_hHostDelegateTemplate = CreatePersistent(CreateFunctionTemplate());
m_hHostDelegateTemplate->SetClassName(CreateString("HostDelegate"));
m_hHostDelegateTemplate->SetCallHandler(HostObjectConstructorCallHandler, hContextImpl);
m_hHostDelegateTemplate->InstanceTemplate()->SetHandler(v8::NamedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyNames, hContextImpl, v8::PropertyHandlerFlags::kNone));
m_hHostDelegateTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyIndices, hContextImpl));
m_hHostDelegateTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetHostObjectIteratorFunction);
m_hHostDelegateTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetHostObjectAsyncIteratorFunction);
m_hHostDelegateTemplate->PrototypeTemplate()->Set(hToJSON, hGetHostObjectJsonFunction, ::CombineFlags(v8::ReadOnly, v8::DontDelete, v8::DontEnum));
m_hHostDelegateTemplate->InstanceTemplate()->SetCallAsFunctionHandler(InvokeHostObject, hContextImpl);
m_hHostDelegateTemplate->InstanceTemplate()->SetHostDelegate(); // instructs our patched V8 typeof implementation to return "function"
m_hHostDelegateTemplate->PrototypeTemplate()->Set(CreateString("toFunction"), hHostDelegateToFunctionFunction);
m_hFastHostObjectTemplate = CreatePersistent(CreateFunctionTemplate());
m_hFastHostObjectTemplate->SetClassName(CreateString("FastHostObject"));
m_hFastHostObjectTemplate->SetCallHandler(HostObjectConstructorCallHandler, hContextImpl);
m_hFastHostObjectTemplate->InstanceTemplate()->SetHandler(v8::NamedPropertyHandlerConfiguration(GetFastHostObjectProperty, SetFastHostObjectProperty, QueryFastHostObjectProperty, DeleteFastHostObjectProperty, GetFastHostObjectPropertyNames, hContextImpl, v8::PropertyHandlerFlags::kNone));
m_hFastHostObjectTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetFastHostObjectProperty, SetFastHostObjectProperty, QueryFastHostObjectProperty, DeleteFastHostObjectProperty, GetFastHostObjectPropertyIndices, hContextImpl));
m_hFastHostObjectTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetFastHostObjectIteratorFunction);
m_hFastHostObjectTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetFastHostObjectAsyncIteratorFunction);
m_hFastHostFunctionTemplate = CreatePersistent(CreateFunctionTemplate());
m_hFastHostFunctionTemplate->SetClassName(CreateString("FastHostFunction"));
m_hFastHostFunctionTemplate->SetCallHandler(HostObjectConstructorCallHandler, hContextImpl);
m_hFastHostFunctionTemplate->InstanceTemplate()->SetHandler(v8::NamedPropertyHandlerConfiguration(GetFastHostObjectProperty, SetFastHostObjectProperty, QueryFastHostObjectProperty, DeleteFastHostObjectProperty, GetFastHostObjectPropertyNames, hContextImpl, v8::PropertyHandlerFlags::kNone));
m_hFastHostFunctionTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetFastHostObjectProperty, SetFastHostObjectProperty, QueryFastHostObjectProperty, DeleteFastHostObjectProperty, GetFastHostObjectPropertyIndices, hContextImpl));
m_hFastHostFunctionTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetFastHostObjectIteratorFunction);
m_hFastHostFunctionTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetFastHostObjectAsyncIteratorFunction);
m_hFastHostFunctionTemplate->InstanceTemplate()->SetCallAsFunctionHandler(InvokeFastHostObject, hContextImpl);
m_hFastHostFunctionTemplate->InstanceTemplate()->SetHostDelegate(); // instructs our patched V8 typeof implementation to return "function"
m_hFastHostFunctionTemplate->PrototypeTemplate()->Set(CreateString("toFunction"), hHostDelegateToFunctionFunction);
m_pvV8ObjectCache = HostObjectUtil::CreateV8ObjectCache();
m_spIsolateImpl->AddContext(this, options);
FROM_MAYBE_CATCH
Teardown();
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("The V8 runtime cannot initialize the script engine because a script exception is pending")), false);
FROM_MAYBE_END
END_ISOLATE_SCOPE
++s_InstanceCount;
}
//-----------------------------------------------------------------------------
size_t V8ContextImpl::GetInstanceCount()
{
return s_InstanceCount;
}
//-----------------------------------------------------------------------------
size_t V8ContextImpl::GetMaxIsolateHeapSize()
{
return m_spIsolateImpl->GetMaxHeapSize();
}
//-----------------------------------------------------------------------------
void V8ContextImpl::SetMaxIsolateHeapSize(size_t value)
{
m_spIsolateImpl->SetMaxHeapSize(value);
}
//-----------------------------------------------------------------------------
double V8ContextImpl::GetIsolateHeapSizeSampleInterval()
{
return m_spIsolateImpl->GetHeapSizeSampleInterval();
}
//-----------------------------------------------------------------------------
void V8ContextImpl::SetIsolateHeapSizeSampleInterval(double value)
{
m_spIsolateImpl->SetHeapSizeSampleInterval(value);
}
//-----------------------------------------------------------------------------
size_t V8ContextImpl::GetMaxIsolateStackUsage()
{
return m_spIsolateImpl->GetMaxStackUsage();
}
//-----------------------------------------------------------------------------
void V8ContextImpl::SetMaxIsolateStackUsage(size_t value)
{
m_spIsolateImpl->SetMaxStackUsage(value);
}
//-----------------------------------------------------------------------------
void V8ContextImpl::CallWithLock(CallWithLockCallback* pCallback, void* pvAction)
{
VerifyNotOutOfMemory();
BEGIN_ISOLATE_SCOPE
(*pCallback)(pvAction);
END_ISOLATE_SCOPE
}
//-----------------------------------------------------------------------------
void V8ContextImpl::CallWithLockWithArg(CallWithLockWithArgCallback* pCallback, void* pvAction, void* pvArg)
{
VerifyNotOutOfMemory();
BEGIN_ISOLATE_SCOPE
(*pCallback)(pvAction, pvArg);
END_ISOLATE_SCOPE
}
//-----------------------------------------------------------------------------
V8Value V8ContextImpl::GetRootObject()
{
BEGIN_CONTEXT_SCOPE
return ExportValue(m_hContext->Global());
END_CONTEXT_SCOPE
}
//-----------------------------------------------------------------------------
void V8ContextImpl::SetGlobalProperty(const StdString& name, const V8Value& value, bool globalMembers)
{
BEGIN_CONTEXT_SCOPE
FROM_MAYBE_TRY
auto hName = FROM_MAYBE(CreateString(name));
auto hValue = ::ValueAsObject(ImportValue(value));
v8::Local<v8::Object> hOldValue;
if (FROM_MAYBE(m_hContext->Global()->HasOwnProperty(m_hContext, hName)))
{
hOldValue = ::ValueAsObject(FROM_MAYBE(m_hContext->Global()->GetRealNamedProperty(m_hContext, hName)));
}
auto result = FROM_MAYBE(m_hContext->Global()->DefineOwnProperty(m_hContext, hName, hValue, v8::ReadOnly));
if (result && globalMembers && !hValue.IsEmpty())
{
if (!hOldValue.IsEmpty())
{
for (auto it = m_GlobalMembersStack.begin(); it != m_GlobalMembersStack.end(); it++)
{
if (it->first == name)
{
Dispose(it->second);
m_GlobalMembersStack.erase(it);
break;
}
}
}
m_GlobalMembersStack.emplace_back(name, CreatePersistent(hValue));
}
FROM_MAYBE_CATCH
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("The V8 runtime cannot perform the requested operation because a script exception is pending")), false);
FROM_MAYBE_END
END_CONTEXT_SCOPE
}
//-----------------------------------------------------------------------------
void V8ContextImpl::AwaitDebuggerAndPause()
{
m_spIsolateImpl->AwaitDebuggerAndPause();
}
//-----------------------------------------------------------------------------
void V8ContextImpl::CancelAwaitDebugger()
{
m_spIsolateImpl->CancelAwaitDebugger();
}
//-----------------------------------------------------------------------------
V8Value V8ContextImpl::Execute(const V8DocumentInfo& documentInfo, const StdString& code, bool evaluate)
{
BEGIN_CONTEXT_SCOPE
BEGIN_DOCUMENT_SCOPE(documentInfo)
BEGIN_EXECUTION_SCOPE
FROM_MAYBE_TRY
auto codeDigest = code.GetDigest();
v8::ScriptCompiler::Source source(FROM_MAYBE(CreateString(code)), CreateScriptOrigin(documentInfo));
v8::Local<v8::Value> hResult;
if (documentInfo.IsModule())
{
auto hModule = GetCachedModule(documentInfo.GetUniqueId(), codeDigest);
if (hModule.IsEmpty())
{
hModule = VERIFY_MAYBE(CompileModule(&source));
if (hModule.IsEmpty())
{
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Module compilation failed; no additional information was provided by the V8 runtime")), false);
}
CacheModule(documentInfo, codeDigest, hModule);
}
if (hModule->GetStatus() == v8::Module::kUninstantiated)
{
ASSERT_EVAL(VERIFY_MAYBE(hModule->InstantiateModule(m_hContext, V8IsolateImpl::ModuleResolveCallback)));
}
if (hModule->GetStatus() == v8::Module::kInstantiated)
{
hResult = VERIFY_MAYBE(hModule->Evaluate(m_hContext));
if (hResult->IsPromise())
{
auto hPromise = hResult.As<v8::Promise>();
if (hModule->IsGraphAsync() || (hPromise->State() == v8::Promise::PromiseState::kPending))
{
v8::Local<v8::Object> hMetaHolder;
if (TryGetCachedModuleMetaHolder(hModule, hMetaHolder))
{
if (m_hGetModuleResultFunction.IsEmpty())
{
auto hEngineInternal = FROM_MAYBE(m_hContext->Global()->Get(m_hContext, CreateString("EngineInternal"))).As<v8::Object>();
m_hGetModuleResultFunction = CreatePersistent(FROM_MAYBE(hEngineInternal->Get(m_hContext, CreateString("getModuleResult"))).As<v8::Function>());
}
v8::Local<v8::Value> args[] = { hResult, hMetaHolder };
hResult = FROM_MAYBE(m_hGetModuleResultFunction->Call(m_hContext, GetUndefined(), 2, args));
}
}
else if (hPromise->State() == v8::Promise::PromiseState::kFulfilled)
{
hResult = hPromise->Result();
if (evaluate && (hResult.IsEmpty() || hResult->IsUndefined()))
{
v8::Local<v8::Object> hMetaHolder;
if (TryGetCachedModuleMetaHolder(hModule, hMetaHolder))
{
auto hMeta = ::ValueAsObject(FROM_MAYBE(hMetaHolder->Get(m_hContext, 0)));
if (!hMeta.IsEmpty())
{
hResult = FROM_MAYBE(hMeta->Get(m_hContext, m_hModuleResultKey));
}
}
}
}
else if (hPromise->State() == v8::Promise::PromiseState::kRejected)
{
auto hException = hPromise->Result();
if (hException->IsObject())
{
auto hExceptionObject = hException.As<v8::Object>();
auto hHostException = FROM_MAYBE(hExceptionObject->Get(m_hContext, m_hHostExceptionKey));
throw V8Exception(V8Exception::Type::General, m_Name, CreateStdString(hExceptionObject), CreateStdString(FROM_MAYBE(hExceptionObject->Get(m_hContext, m_hStackKey))), EXECUTION_STARTED, ExportValue(hException), ExportValue(hHostException));
}
throw V8Exception(V8Exception::Type::General, m_Name, CreateStdString(hException), StdString(), EXECUTION_STARTED, ExportValue(hException), V8Value(V8Value::Undefined));
}
}
}
else
{
evaluate = false;
}
}
else
{
auto hScript = GetCachedScript(documentInfo.GetUniqueId(), codeDigest);
if (hScript.IsEmpty())
{
hScript = VERIFY_MAYBE(CompileUnboundScript(&source));
if (hScript.IsEmpty())
{
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Script compilation failed; no additional information was provided by the V8 runtime")), false);
}
CacheScript(documentInfo, codeDigest, hScript);
}
hResult = VERIFY_MAYBE(hScript->BindToCurrentContext()->Run(m_hContext));
}
if (!evaluate)
{
hResult = GetUndefined();
}
return ExportValue(hResult);
FROM_MAYBE_CATCH
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("The V8 runtime cannot perform the requested operation because a script exception is pending")), EXECUTION_STARTED);
FROM_MAYBE_END
END_EXECUTION_SCOPE
END_DOCUMENT_SCOPE
END_CONTEXT_SCOPE
}
//-----------------------------------------------------------------------------
V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code)
{
BEGIN_CONTEXT_SCOPE
BEGIN_DOCUMENT_SCOPE(documentInfo)
BEGIN_EXECUTION_SCOPE
FROM_MAYBE_TRY
auto codeDigest = code.GetDigest();
v8::ScriptCompiler::Source source(FROM_MAYBE(CreateString(code)), CreateScriptOrigin(documentInfo));
std::unique_ptr<V8ScriptHolder> upScriptHolder;
if (documentInfo.IsModule())
{
auto hModule = GetCachedModule(documentInfo.GetUniqueId(), codeDigest);
if (hModule.IsEmpty())
{
hModule = VERIFY_MAYBE(CompileModule(&source));
if (hModule.IsEmpty())
{
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Module compilation failed; no additional information was provided by the V8 runtime")), false);
}
CacheModule(documentInfo, codeDigest, hModule);
}
upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hModule)), documentInfo, codeDigest, std::move(code)));
}
else
{
auto hScript = GetCachedScript(documentInfo.GetUniqueId(), codeDigest);
if (hScript.IsEmpty())
{
hScript = VERIFY_MAYBE(CompileUnboundScript(&source));
if (hScript.IsEmpty())
{
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Script compilation failed; no additional information was provided by the V8 runtime")), false);
}
CacheScript(documentInfo, codeDigest, hScript);
}
upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hScript)), documentInfo, codeDigest));
}
return upScriptHolder.release();
FROM_MAYBE_CATCH
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("The V8 runtime cannot perform the requested operation because a script exception is pending")), EXECUTION_STARTED);
FROM_MAYBE_END
END_EXECUTION_SCOPE
END_DOCUMENT_SCOPE
END_CONTEXT_SCOPE
}
//-----------------------------------------------------------------------------
V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes)
{
if (cacheKind == V8CacheKind::None)
{
cacheBytes.clear();
return Compile(documentInfo, std::move(code));
}
BEGIN_CONTEXT_SCOPE
BEGIN_DOCUMENT_SCOPE(documentInfo)
BEGIN_EXECUTION_SCOPE
FROM_MAYBE_TRY
auto codeDigest = code.GetDigest();
v8::ScriptCompiler::Source source(FROM_MAYBE(CreateString(code)), CreateScriptOrigin(documentInfo));
std::unique_ptr<V8ScriptHolder> upScriptHolder;
if (documentInfo.IsModule())
{
auto hModule = GetCachedModule(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
if (hModule.IsEmpty())
{
hModule = VERIFY_MAYBE(CompileModule(&source));
if (hModule.IsEmpty())
{
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Module compilation failed; no additional information was provided by the V8 runtime")), false);
}
std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hModule->GetUnboundModuleScript()));
if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
{
cacheBytes.resize(upCachedData->length);
memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
}
CacheModule(documentInfo, codeDigest, hModule, cacheBytes);
}
else if (cacheBytes.empty())
{
std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hModule->GetUnboundModuleScript()));
if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
{
cacheBytes.resize(upCachedData->length);
memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
SetCachedModuleCacheBytes(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
}
}
upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hModule)), documentInfo, codeDigest, std::move(code)));
}
else
{
auto hScript = GetCachedScript(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
if (hScript.IsEmpty())
{
hScript = VERIFY_MAYBE(CompileUnboundScript(&source));
if (hScript.IsEmpty())
{
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Script compilation failed; no additional information was provided by the V8 runtime")), false);
}
std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hScript));
if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
{
cacheBytes.resize(upCachedData->length);
memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
}
CacheScript(documentInfo, codeDigest, hScript, cacheBytes);
}
else if (cacheBytes.empty())
{
std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hScript));
if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
{
cacheBytes.resize(upCachedData->length);
memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
SetCachedScriptCacheBytes(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
}
}
upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hScript)), documentInfo, codeDigest));
}
if (!cacheBytes.empty() && documentInfo.IsModule())
{
upScriptHolder->SetCacheBytes(cacheBytes);
}
return upScriptHolder.release();
FROM_MAYBE_CATCH
throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("The V8 runtime cannot perform the requested operation because a script exception is pending")), EXECUTION_STARTED);
FROM_MAYBE_END
END_EXECUTION_SCOPE
END_DOCUMENT_SCOPE
END_CONTEXT_SCOPE
}
//-----------------------------------------------------------------------------
V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted)
{
cacheAccepted = false;
if ((cacheKind == V8CacheKind::None) || cacheBytes.empty())
{
return Compile(documentInfo, std::move(code));
}
BEGIN_CONTEXT_SCOPE
BEGIN_DOCUMENT_SCOPE(documentInfo)
BEGIN_EXECUTION_SCOPE
FROM_MAYBE_TRY
auto codeDigest = code.GetDigest();
auto pCachedData = new v8::ScriptCompiler::CachedData(cacheBytes.data(), static_cast<int>(cacheBytes.size()), v8::ScriptCompiler::CachedData::BufferNotOwned);
v8::ScriptCompiler::Source source(FROM_MAYBE(CreateString(code)), CreateScriptOrigin(documentInfo), pCachedData);
std::unique_ptr<V8ScriptHolder> upScriptHolder;
if (documentInfo.IsModule())
{
auto hModule = GetCachedModule(documentInfo.GetUniqueId(), codeDigest);