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
|
// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
namespace runtime {
extern transitioning runtime
ObjectIsExtensible(implicit context: Context)(Object): Object;
extern transitioning runtime
JSReceiverPreventExtensionsThrow(implicit context: Context)(JSReceiver):
Object;
extern transitioning runtime
JSReceiverPreventExtensionsDontThrow(implicit context: Context)(JSReceiver):
Object;
extern transitioning runtime
JSReceiverGetPrototypeOf(implicit context: Context)(JSReceiver): Object;
extern transitioning runtime
JSReceiverSetPrototypeOfThrow(implicit context: Context)(JSReceiver, Object):
Object;
extern transitioning runtime
JSReceiverSetPrototypeOfDontThrow(implicit context:
Context)(JSReceiver, Object): Object;
} // namespace runtime
namespace object {
transitioning macro
ObjectIsExtensible(implicit context: Context)(object: Object): Object {
const objectJSReceiver = Cast<JSReceiver>(object) otherwise return False;
const objectJSProxy = Cast<JSProxy>(objectJSReceiver)
otherwise return runtime::ObjectIsExtensible(objectJSReceiver);
return proxy::ProxyIsExtensible(objectJSProxy);
}
transitioning macro
ObjectPreventExtensionsThrow(implicit context: Context)(object: Object):
Object {
const objectJSReceiver = Cast<JSReceiver>(object) otherwise return object;
const objectJSProxy = Cast<JSProxy>(objectJSReceiver)
otherwise return runtime::JSReceiverPreventExtensionsThrow(
objectJSReceiver);
proxy::ProxyPreventExtensions(objectJSProxy, True);
return objectJSReceiver;
}
transitioning macro
ObjectPreventExtensionsDontThrow(implicit context: Context)(object: Object):
Object {
const objectJSReceiver = Cast<JSReceiver>(object) otherwise return False;
const objectJSProxy = Cast<JSProxy>(objectJSReceiver)
otherwise return runtime::JSReceiverPreventExtensionsDontThrow(
objectJSReceiver);
return proxy::ProxyPreventExtensions(objectJSProxy, False);
}
transitioning macro
ObjectGetPrototypeOf(implicit context: Context)(object: Object): Object {
const objectJSReceiver: JSReceiver = ToObject_Inline(context, object);
return object::JSReceiverGetPrototypeOf(objectJSReceiver);
}
transitioning macro
JSReceiverGetPrototypeOf(implicit context: Context)(object: JSReceiver):
Object {
const objectJSProxy = Cast<JSProxy>(object)
otherwise return runtime::JSReceiverGetPrototypeOf(object);
return proxy::ProxyGetPrototypeOf(objectJSProxy);
}
transitioning macro
ObjectSetPrototypeOfThrow(implicit context: Context)(
object: Object, proto: Object): Object {
const objectJSReceiver = Cast<JSReceiver>(object) otherwise return object;
const objectJSProxy = Cast<JSProxy>(objectJSReceiver)
otherwise return runtime::JSReceiverSetPrototypeOfThrow(
objectJSReceiver, proto);
proxy::ProxySetPrototypeOf(objectJSProxy, proto, True);
return objectJSReceiver;
}
transitioning macro
ObjectSetPrototypeOfDontThrow(implicit context: Context)(
object: Object, proto: Object): Object {
const objectJSReceiver = Cast<JSReceiver>(object) otherwise return False;
const objectJSProxy = Cast<JSProxy>(objectJSReceiver)
otherwise return runtime::JSReceiverSetPrototypeOfDontThrow(
objectJSReceiver, proto);
return proxy::ProxySetPrototypeOf(objectJSProxy, proto, False);
}
} // namespace object
namespace object_isextensible {
// ES6 section 19.1.2.11 Object.isExtensible ( O )
transitioning javascript builtin ObjectIsExtensible(
js-implicit context: Context)(_receiver: Object, object: Object): Object {
return object::ObjectIsExtensible(object);
}
} // namespace object_isextensible
namespace object_preventextensions {
// ES6 section 19.1.2.11 Object.isExtensible ( O )
transitioning javascript builtin ObjectPreventExtensions(
js-implicit context: Context)(_receiver: Object, object: Object): Object {
return object::ObjectPreventExtensionsThrow(object);
}
} // namespace object_preventextensions
namespace object_getprototypeof {
// ES6 section 19.1.2.9 Object.getPrototypeOf ( O )
transitioning javascript builtin ObjectGetPrototypeOf(
js-implicit context: Context)(_receiver: Object, object: Object): Object {
return object::ObjectGetPrototypeOf(object);
}
} // namespace object_getprototypeof
namespace object_setprototypeof {
// ES6 section 19.1.2.21 Object.setPrototypeOf ( O, proto )
transitioning javascript builtin ObjectSetPrototypeOf(
js-implicit context:
Context)(_receiver: Object, object: Object, proto: Object): Object {
// 1. Set O to ? RequireObjectCoercible(O).
RequireObjectCoercible(object, 'Object.setPrototypeOf');
// 2. If Type(proto) is neither Object nor Null, throw a TypeError
// exception.
// 3. If Type(O) is not Object, return O.
// 4. Let status be ? O.[[SetPrototypeOf]](proto).
// 5. If status is false, throw a TypeError exception.
// 6. Return O.
if (proto == Null || Is<JSReceiver>(proto)) {
return object::ObjectSetPrototypeOfThrow(object, proto);
}
ThrowTypeError(kProtoObjectOrNull, proto);
}
} // namespace object_setprototypeof
|
