Repository navigation
Expand file tree
/
Copy pathJSObjectRef.cpp
More file actions
880 lines (750 loc) · 29.3 KB
/
Copy pathJSObjectRef.cpp
File metadata and controls
880 lines (750 loc) · 29.3 KB
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
/*
* Copyright (C) 2006-2020 Apple Inc. All rights reserved.
* Copyright (C) 2008 Kelvin W Sherlock (ksherlock@gmail.com)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "JSObjectRef.h"
#include "JSObjectRefPrivate.h"
#include "APICast.h"
#include "APIUtils.h"
#include "DateConstructor.h"
#include "ErrorConstructor.h"
#include "Exception.h"
#include "FunctionConstructor.h"
#include "Identifier.h"
#include "InitializeThreading.h"
#include "JSAPIWrapperObject.h"
#include "JSArray.h"
#include "JSCInlines.h"
#include "JSCallbackConstructor.h"
#include "JSCallbackFunction.h"
#include "JSCallbackObject.h"
#include "JSClassRef.h"
#include "JSFunction.h"
#include "JSGlobalObject.h"
#include "JSObject.h"
#include "JSPromise.h"
#include "JSRetainPtr.h"
#include "JSString.h"
#include "JSValueRef.h"
#include "ObjectConstructor.h"
#include "ObjectPrototype.h"
#include "PropertyNameArray.h"
#include "ProxyObject.h"
#include "RegExpConstructor.h"
#if ENABLE(REMOTE_INSPECTOR)
#include "JSGlobalObjectInspectorController.h"
#endif
using namespace JSC;
JSClassRef JSClassCreate(const JSClassDefinition* definition)
{
initializeThreading();
auto jsClass = (definition->attributes & kJSClassAttributeNoAutomaticPrototype)
? OpaqueJSClass::createNoAutomaticPrototype(definition)
: OpaqueJSClass::create(definition);
return &jsClass.leakRef();
}
JSClassRef JSClassRetain(JSClassRef jsClass)
{
jsClass->ref();
return jsClass;
}
void JSClassRelease(JSClassRef jsClass)
{
jsClass->deref();
}
JSObjectRef JSObjectMake(JSContextRef ctx, JSClassRef jsClass, void* data)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
if (!jsClass)
return toRef(constructEmptyObject(globalObject));
JSCallbackObject<JSNonFinalObject>* object = JSCallbackObject<JSNonFinalObject>::create(globalObject, globalObject->callbackObjectStructure(), jsClass, data);
if (JSObject* prototype = jsClass->prototype(globalObject))
object->setPrototypeDirect(vm, prototype);
return toRef(object);
}
JSObjectRef JSObjectMakeFunctionWithCallback(JSContextRef ctx, JSStringRef name, JSObjectCallAsFunctionCallback callAsFunction)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
return toRef(JSCallbackFunction::create(vm, globalObject, callAsFunction, name ? name->string() : "anonymous"_s));
}
JSObjectRef JSObjectMakeConstructor(JSContextRef ctx, JSClassRef jsClass, JSObjectCallAsConstructorCallback callAsConstructor)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
JSValue jsPrototype = jsClass ? jsClass->prototype(globalObject) : 0;
if (!jsPrototype)
jsPrototype = globalObject->objectPrototype();
JSCallbackConstructor* constructor = JSCallbackConstructor::create(globalObject, globalObject->callbackConstructorStructure(), jsClass, callAsConstructor);
constructor->putDirect(vm, vm.propertyNames->prototype, jsPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
return toRef(constructor);
}
JSObjectRef JSObjectMakeFunction(JSContextRef ctx, JSStringRef name, unsigned parameterCount, const JSStringRef parameterNames[], JSStringRef body, JSStringRef sourceURL, int startingLineNumber, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
startingLineNumber = std::max(1, startingLineNumber);
Identifier nameID = name ? name->identifier(&vm) : Identifier::fromString(vm, "anonymous");
MarkedArgumentBuffer args;
for (unsigned i = 0; i < parameterCount; i++)
args.append(jsString(vm, parameterNames[i]->string()));
args.append(jsString(vm, body->string()));
if (UNLIKELY(args.hasOverflowed())) {
auto throwScope = DECLARE_THROW_SCOPE(vm);
throwOutOfMemoryError(globalObject, throwScope);
handleExceptionIfNeeded(scope, ctx, exception);
return 0;
}
auto sourceURLString = sourceURL ? sourceURL->string() : String();
JSObject* result = constructFunction(globalObject, args, nameID, SourceOrigin { sourceURLString }, sourceURLString, TextPosition(OrdinalNumber::fromOneBasedInt(startingLineNumber), OrdinalNumber()));
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
result = 0;
return toRef(result);
}
JSObjectRef JSObjectMakeArray(JSContextRef ctx, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* result;
if (argumentCount) {
MarkedArgumentBuffer argList;
for (size_t i = 0; i < argumentCount; ++i)
argList.append(toJS(globalObject, arguments[i]));
if (UNLIKELY(argList.hasOverflowed())) {
auto throwScope = DECLARE_THROW_SCOPE(vm);
throwOutOfMemoryError(globalObject, throwScope);
handleExceptionIfNeeded(scope, ctx, exception);
return 0;
}
result = constructArray(globalObject, static_cast<ArrayAllocationProfile*>(0), argList);
} else
result = constructEmptyArray(globalObject, 0);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
result = 0;
return toRef(result);
}
JSObjectRef JSObjectMakeDate(JSContextRef ctx, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
MarkedArgumentBuffer argList;
for (size_t i = 0; i < argumentCount; ++i)
argList.append(toJS(globalObject, arguments[i]));
if (UNLIKELY(argList.hasOverflowed())) {
auto throwScope = DECLARE_THROW_SCOPE(vm);
throwOutOfMemoryError(globalObject, throwScope);
handleExceptionIfNeeded(scope, ctx, exception);
return 0;
}
JSObject* result = constructDate(globalObject, JSValue(), argList);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
result = 0;
return toRef(result);
}
JSObjectRef JSObjectMakeError(JSContextRef ctx, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSValue message = argumentCount ? toJS(globalObject, arguments[0]) : jsUndefined();
Structure* errorStructure = globalObject->errorStructure();
JSObject* result = ErrorInstance::create(globalObject, errorStructure, message);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
result = 0;
return toRef(result);
}
JSObjectRef JSObjectMakeRegExp(JSContextRef ctx, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
MarkedArgumentBuffer argList;
for (size_t i = 0; i < argumentCount; ++i)
argList.append(toJS(globalObject, arguments[i]));
if (UNLIKELY(argList.hasOverflowed())) {
auto throwScope = DECLARE_THROW_SCOPE(vm);
throwOutOfMemoryError(globalObject, throwScope);
handleExceptionIfNeeded(scope, ctx, exception);
return 0;
}
JSObject* result = constructRegExp(globalObject, argList);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
result = 0;
return toRef(result);
}
JSObjectRef JSObjectMakeDeferredPromise(JSContextRef ctx, JSObjectRef* resolve, JSObjectRef* reject, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return nullptr;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(globalObject);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSPromise::DeferredData data = JSPromise::createDeferredData(globalObject, globalObject->promiseConstructor());
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
return nullptr;
if (resolve)
*resolve = toRef(data.resolve);
if (reject)
*reject = toRef(data.reject);
return toRef(data.promise);
}
JSValueRef JSObjectGetPrototype(JSContextRef ctx, JSObjectRef object)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
JSLockHolder locker(globalObject);
JSObject* jsObject = toJS(object);
return toRef(globalObject, jsObject->getPrototypeDirect(globalObject->vm()));
}
void JSObjectSetPrototype(JSContextRef ctx, JSObjectRef object, JSValueRef value)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
JSValue jsValue = toJS(globalObject, value);
jsObject->setPrototype(vm, globalObject, jsValue.isObject() ? jsValue : jsNull());
handleExceptionIfNeeded(scope, ctx, nullptr);
}
bool JSObjectHasProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return false;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
JSObject* jsObject = toJS(object);
return jsObject->hasProperty(globalObject, propertyName->identifier(&vm));
}
JSValueRef JSObjectGetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception)
{
if (!ctx || !object) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
JSValue jsValue = jsObject->get(globalObject, propertyName->identifier(&vm));
handleExceptionIfNeeded(scope, ctx, exception);
return toRef(globalObject, jsValue);
}
void JSObjectSetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef value, JSPropertyAttributes attributes, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
Identifier name(propertyName->identifier(&vm));
JSValue jsValue = toJS(globalObject, value);
bool doesNotHaveProperty = attributes && !jsObject->hasProperty(globalObject, name);
if (LIKELY(!scope.exception())) {
if (doesNotHaveProperty) {
PropertyDescriptor desc(jsValue, attributes);
jsObject->methodTable(vm)->defineOwnProperty(jsObject, globalObject, name, desc, false);
} else {
PutPropertySlot slot(jsObject);
jsObject->methodTable(vm)->put(jsObject, globalObject, name, jsValue, slot);
}
}
handleExceptionIfNeeded(scope, ctx, exception);
}
bool JSObjectHasPropertyForKey(JSContextRef ctx, JSObjectRef object, JSValueRef key, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return false;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
Identifier ident = toJS(globalObject, key).toPropertyKey(globalObject);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
return false;
bool result = jsObject->hasProperty(globalObject, ident);
handleExceptionIfNeeded(scope, ctx, exception);
return result;
}
JSValueRef JSObjectGetPropertyForKey(JSContextRef ctx, JSObjectRef object, JSValueRef key, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return nullptr;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
Identifier ident = toJS(globalObject, key).toPropertyKey(globalObject);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
return nullptr;
JSValue jsValue = jsObject->get(globalObject, ident);
handleExceptionIfNeeded(scope, ctx, exception);
return toRef(globalObject, jsValue);
}
void JSObjectSetPropertyForKey(JSContextRef ctx, JSObjectRef object, JSValueRef key, JSValueRef value, JSPropertyAttributes attributes, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
JSValue jsValue = toJS(globalObject, value);
Identifier ident = toJS(globalObject, key).toPropertyKey(globalObject);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
return;
bool doesNotHaveProperty = attributes && !jsObject->hasProperty(globalObject, ident);
if (LIKELY(!scope.exception())) {
if (doesNotHaveProperty) {
PropertyDescriptor desc(jsValue, attributes);
jsObject->methodTable(vm)->defineOwnProperty(jsObject, globalObject, ident, desc, false);
} else {
PutPropertySlot slot(jsObject);
jsObject->methodTable(vm)->put(jsObject, globalObject, ident, jsValue, slot);
}
}
handleExceptionIfNeeded(scope, ctx, exception);
}
bool JSObjectDeletePropertyForKey(JSContextRef ctx, JSObjectRef object, JSValueRef key, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return false;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
Identifier ident = toJS(globalObject, key).toPropertyKey(globalObject);
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
return false;
bool result = JSCell::deleteProperty(jsObject, globalObject, ident);
handleExceptionIfNeeded(scope, ctx, exception);
return result;
}
JSValueRef JSObjectGetPropertyAtIndex(JSContextRef ctx, JSObjectRef object, unsigned propertyIndex, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
JSValue jsValue = jsObject->get(globalObject, propertyIndex);
handleExceptionIfNeeded(scope, ctx, exception);
return toRef(globalObject, jsValue);
}
void JSObjectSetPropertyAtIndex(JSContextRef ctx, JSObjectRef object, unsigned propertyIndex, JSValueRef value, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
JSValue jsValue = toJS(globalObject, value);
jsObject->methodTable(vm)->putByIndex(jsObject, globalObject, propertyIndex, jsValue, false);
handleExceptionIfNeeded(scope, ctx, exception);
}
bool JSObjectDeleteProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return false;
}
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
JSObject* jsObject = toJS(object);
bool result = JSCell::deleteProperty(jsObject, globalObject, propertyName->identifier(&vm));
handleExceptionIfNeeded(scope, ctx, exception);
return result;
}
// API objects have private properties, which may get accessed during destruction. This
// helper lets us get the ClassInfo of an API object from a function that may get called
// during destruction.
static const ClassInfo* classInfoPrivate(JSObject* jsObject)
{
VM& vm = jsObject->vm();
if (vm.currentlyDestructingCallbackObject != jsObject)
return jsObject->classInfo(vm);
return vm.currentlyDestructingCallbackObjectClassInfo;
}
void* JSObjectGetPrivate(JSObjectRef object)
{
JSObject* jsObject = uncheckedToJS(object);
VM& vm = jsObject->vm();
const ClassInfo* classInfo = classInfoPrivate(jsObject);
// Get wrapped object if proxied
if (classInfo->isSubClassOf(JSProxy::info())) {
jsObject = static_cast<JSProxy*>(jsObject)->target();
classInfo = jsObject->classInfo(vm);
}
if (classInfo->isSubClassOf(JSCallbackObject<JSGlobalObject>::info()))
return static_cast<JSCallbackObject<JSGlobalObject>*>(jsObject)->getPrivate();
if (classInfo->isSubClassOf(JSCallbackObject<JSNonFinalObject>::info()))
return static_cast<JSCallbackObject<JSNonFinalObject>*>(jsObject)->getPrivate();
#if JSC_OBJC_API_ENABLED
if (classInfo->isSubClassOf(JSCallbackObject<JSAPIWrapperObject>::info()))
return static_cast<JSCallbackObject<JSAPIWrapperObject>*>(jsObject)->getPrivate();
#endif
return 0;
}
bool JSObjectSetPrivate(JSObjectRef object, void* data)
{
JSObject* jsObject = uncheckedToJS(object);
VM& vm = jsObject->vm();
const ClassInfo* classInfo = classInfoPrivate(jsObject);
// Get wrapped object if proxied
if (classInfo->isSubClassOf(JSProxy::info())) {
jsObject = static_cast<JSProxy*>(jsObject)->target();
classInfo = jsObject->classInfo(vm);
}
if (classInfo->isSubClassOf(JSCallbackObject<JSGlobalObject>::info())) {
static_cast<JSCallbackObject<JSGlobalObject>*>(jsObject)->setPrivate(data);
return true;
}
if (classInfo->isSubClassOf(JSCallbackObject<JSNonFinalObject>::info())) {
static_cast<JSCallbackObject<JSNonFinalObject>*>(jsObject)->setPrivate(data);
return true;
}
#if JSC_OBJC_API_ENABLED
if (classInfo->isSubClassOf(JSCallbackObject<JSAPIWrapperObject>::info())) {
static_cast<JSCallbackObject<JSAPIWrapperObject>*>(jsObject)->setPrivate(data);
return true;
}
#endif
return false;
}
JSValueRef JSObjectGetPrivateProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName)
{
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
JSObject* jsObject = toJS(object);
JSValue result;
Identifier name(propertyName->identifier(&vm));
// Get wrapped object if proxied
if (jsObject->inherits<JSProxy>(vm))
jsObject = jsCast<JSProxy*>(jsObject)->target();
if (jsObject->inherits<JSCallbackObject<JSGlobalObject>>(vm))
result = jsCast<JSCallbackObject<JSGlobalObject>*>(jsObject)->getPrivateProperty(name);
else if (jsObject->inherits<JSCallbackObject<JSNonFinalObject>>(vm))
result = jsCast<JSCallbackObject<JSNonFinalObject>*>(jsObject)->getPrivateProperty(name);
#if JSC_OBJC_API_ENABLED
else if (jsObject->inherits<JSCallbackObject<JSAPIWrapperObject>>(vm))
result = jsCast<JSCallbackObject<JSAPIWrapperObject>*>(jsObject)->getPrivateProperty(name);
#endif
return toRef(globalObject, result);
}
bool JSObjectSetPrivateProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef value)
{
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
JSObject* jsObject = toJS(object);
JSValue jsValue = value ? toJS(globalObject, value) : JSValue();
Identifier name(propertyName->identifier(&vm));
// Get wrapped object if proxied
if (jsObject->inherits<JSProxy>(vm))
jsObject = jsCast<JSProxy*>(jsObject)->target();
if (jsObject->inherits<JSCallbackObject<JSGlobalObject>>(vm)) {
jsCast<JSCallbackObject<JSGlobalObject>*>(jsObject)->setPrivateProperty(vm, name, jsValue);
return true;
}
if (jsObject->inherits<JSCallbackObject<JSNonFinalObject>>(vm)) {
jsCast<JSCallbackObject<JSNonFinalObject>*>(jsObject)->setPrivateProperty(vm, name, jsValue);
return true;
}
#if JSC_OBJC_API_ENABLED
if (jsObject->inherits<JSCallbackObject<JSAPIWrapperObject>>(vm)) {
jsCast<JSCallbackObject<JSAPIWrapperObject>*>(jsObject)->setPrivateProperty(vm, name, jsValue);
return true;
}
#endif
return false;
}
bool JSObjectDeletePrivateProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName)
{
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
JSObject* jsObject = toJS(object);
Identifier name(propertyName->identifier(&vm));
// Get wrapped object if proxied
if (jsObject->inherits<JSProxy>(vm))
jsObject = jsCast<JSProxy*>(jsObject)->target();
if (jsObject->inherits<JSCallbackObject<JSGlobalObject>>(vm)) {
jsCast<JSCallbackObject<JSGlobalObject>*>(jsObject)->deletePrivateProperty(name);
return true;
}
if (jsObject->inherits<JSCallbackObject<JSNonFinalObject>>(vm)) {
jsCast<JSCallbackObject<JSNonFinalObject>*>(jsObject)->deletePrivateProperty(name);
return true;
}
#if JSC_OBJC_API_ENABLED
if (jsObject->inherits<JSCallbackObject<JSAPIWrapperObject>>(vm)) {
jsCast<JSCallbackObject<JSAPIWrapperObject>*>(jsObject)->deletePrivateProperty(name);
return true;
}
#endif
return false;
}
bool JSObjectIsFunction(JSContextRef ctx, JSObjectRef object)
{
if (!object)
return false;
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
CallData callData;
JSCell* cell = toJS(object);
return cell->methodTable(vm)->getCallData(cell, callData) != CallType::None;
}
JSValueRef JSObjectCallAsFunction(JSContextRef ctx, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
if (!object)
return 0;
JSObject* jsObject = toJS(object);
JSObject* jsThisObject = toJS(thisObject);
if (!jsThisObject)
jsThisObject = globalObject->globalThis();
MarkedArgumentBuffer argList;
for (size_t i = 0; i < argumentCount; i++)
argList.append(toJS(globalObject, arguments[i]));
if (UNLIKELY(argList.hasOverflowed())) {
auto throwScope = DECLARE_THROW_SCOPE(vm);
throwOutOfMemoryError(globalObject, throwScope);
handleExceptionIfNeeded(scope, ctx, exception);
return 0;
}
CallData callData;
CallType callType = jsObject->methodTable(vm)->getCallData(jsObject, callData);
if (callType == CallType::None)
return 0;
JSValueRef result = toRef(globalObject, profiledCall(globalObject, ProfilingReason::API, jsObject, callType, callData, jsThisObject, argList));
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
result = 0;
return result;
}
bool JSObjectIsConstructor(JSContextRef ctx, JSObjectRef object)
{
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
if (!object)
return false;
return toJS(object)->isConstructor(vm);
}
JSObjectRef JSObjectCallAsConstructor(JSContextRef ctx, JSObjectRef object, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
JSGlobalObject* globalObject = toJS(ctx);
VM& vm = globalObject->vm();
JSLockHolder locker(vm);
auto scope = DECLARE_CATCH_SCOPE(vm);
if (!object)
return 0;
JSObject* jsObject = toJS(object);
ConstructData constructData;
ConstructType constructType = jsObject->methodTable(vm)->getConstructData(jsObject, constructData);
if (constructType == ConstructType::None)
return 0;
MarkedArgumentBuffer argList;
for (size_t i = 0; i < argumentCount; i++)
argList.append(toJS(globalObject, arguments[i]));
if (UNLIKELY(argList.hasOverflowed())) {
auto throwScope = DECLARE_THROW_SCOPE(vm);
throwOutOfMemoryError(globalObject, throwScope);
handleExceptionIfNeeded(scope, ctx, exception);
return 0;
}
JSObjectRef result = toRef(profiledConstruct(globalObject, ProfilingReason::API, jsObject, constructType, constructData, argList));
if (handleExceptionIfNeeded(scope, ctx, exception) == ExceptionStatus::DidThrow)
result = 0;
return result;
}
struct OpaqueJSPropertyNameArray {
WTF_MAKE_FAST_ALLOCATED;
public:
// FIXME: Why not inherit from RefCounted?
OpaqueJSPropertyNameArray(VM* vm)
: refCount(0)
, vm(vm)
{
}
unsigned refCount;
VM* vm;
Vector<Ref<OpaqueJSString>> array;
};
JSPropertyNameArrayRef JSObjectCopyPropertyNames(JSContextRef ctx, JSObjectRef object)
{
if (!ctx) {
ASSERT_NOT_REACHED();
return 0;
}
JSGlobalObject* globalObject = toJS(ctx);
JSLockHolder locker(globalObject);
VM& vm = globalObject->vm();
JSObject* jsObject = toJS(object);
JSPropertyNameArrayRef propertyNames = new OpaqueJSPropertyNameArray(&vm);
PropertyNameArray array(vm, PropertyNameMode::Strings, PrivateSymbolMode::Exclude);
jsObject->methodTable(vm)->getPropertyNames(jsObject, globalObject, array, EnumerationMode());
size_t size = array.size();
propertyNames->array.reserveInitialCapacity(size);
for (size_t i = 0; i < size; ++i)
propertyNames->array.uncheckedAppend(OpaqueJSString::tryCreate(array[i].string()).releaseNonNull());
return JSPropertyNameArrayRetain(propertyNames);
}
JSPropertyNameArrayRef JSPropertyNameArrayRetain(JSPropertyNameArrayRef array)
{
++array->refCount;
return array;
}
void JSPropertyNameArrayRelease(JSPropertyNameArrayRef array)
{
if (--array->refCount == 0) {
JSLockHolder locker(array->vm);
delete array;
}
}
size_t JSPropertyNameArrayGetCount(JSPropertyNameArrayRef array)
{
return array->array.size();
}
JSStringRef JSPropertyNameArrayGetNameAtIndex(JSPropertyNameArrayRef array, size_t index)
{
return array->array[static_cast<unsigned>(index)].ptr();
}
void JSPropertyNameAccumulatorAddName(JSPropertyNameAccumulatorRef array, JSStringRef propertyName)
{
PropertyNameArray* propertyNames = toJS(array);
VM& vm = propertyNames->vm();
JSLockHolder locker(vm);
propertyNames->add(propertyName->identifier(&vm));
}
JSObjectRef JSObjectGetProxyTarget(JSObjectRef objectRef)
{
JSObject* object = toJS(objectRef);
if (!object)
return nullptr;
VM& vm = object->vm();
JSLockHolder locker(vm);
JSObject* result = nullptr;
if (JSProxy* proxy = jsDynamicCast<JSProxy*>(vm, object))
result = proxy->target();
else if (ProxyObject* proxy = jsDynamicCast<ProxyObject*>(vm, object))
result = proxy->target();
return toRef(result);
}
JSGlobalContextRef JSObjectGetGlobalContext(JSObjectRef objectRef)
{
JSObject* object = toJS(objectRef);
if (!object)
return nullptr;
return reinterpret_cast<JSGlobalContextRef>(object->globalObject());
}