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
|
/*
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TypeCasts.h>
#include <LibCrypto/BigInt/UnsignedBigInteger.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Temporal/Instant.h>
#include <LibJS/Runtime/Temporal/InstantConstructor.h>
namespace JS::Temporal {
// 8.1 The Temporal.Instant Constructor, https://tc39.es/proposal-temporal/#sec-temporal-instant-constructor
InstantConstructor::InstantConstructor(Realm& realm)
: NativeFunction(realm.vm().names.Instant.as_string(), *realm.intrinsics().function_prototype())
{
}
ThrowCompletionOr<void> InstantConstructor::initialize(Realm& realm)
{
MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
auto& vm = this->vm();
// 8.2.1 Temporal.Instant.prototype, https://tc39.es/proposal-temporal/#sec-temporal.instant.prototype
define_direct_property(vm.names.prototype, realm.intrinsics().temporal_instant_prototype(), 0);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(realm, vm.names.from, from, 1, attr);
define_native_function(realm, vm.names.fromEpochSeconds, from_epoch_seconds, 1, attr);
define_native_function(realm, vm.names.fromEpochMilliseconds, from_epoch_milliseconds, 1, attr);
define_native_function(realm, vm.names.fromEpochMicroseconds, from_epoch_microseconds, 1, attr);
define_native_function(realm, vm.names.fromEpochNanoseconds, from_epoch_nanoseconds, 1, attr);
define_native_function(realm, vm.names.compare, compare, 2, attr);
define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
return {};
}
// 8.1.1 Temporal.Instant ( epochNanoseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant
ThrowCompletionOr<Value> InstantConstructor::call()
{
auto& vm = this->vm();
// 1. If NewTarget is undefined, then
// a. Throw a TypeError exception.
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Temporal.Instant");
}
// 8.1.1 Temporal.Instant ( epochNanoseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant
ThrowCompletionOr<NonnullGCPtr<Object>> InstantConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
// 2. Let epochNanoseconds be ? ToBigInt(epochNanoseconds).
auto* epoch_nanoseconds = TRY(vm.argument(0).to_bigint(vm));
// 3. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds))
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
// 4. Return ? CreateTemporalInstant(epochNanoseconds, NewTarget).
return *TRY(create_temporal_instant(vm, *epoch_nanoseconds, &new_target));
}
// 8.2.2 Temporal.Instant.from ( item ), https://tc39.es/proposal-temporal/#sec-temporal.instant.from
JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from)
{
auto item = vm.argument(0);
// 1. If Type(item) is Object and item has an [[InitializedTemporalInstant]] internal slot, then
if (item.is_object() && is<Instant>(item.as_object())) {
// a. Return ! CreateTemporalInstant(item.[[Nanoseconds]]).
return MUST(create_temporal_instant(vm, BigInt::create(vm, static_cast<Instant&>(item.as_object()).nanoseconds().big_integer())));
}
// 2. Return ? ToTemporalInstant(item).
return TRY(to_temporal_instant(vm, item));
}
// 8.2.3 Temporal.Instant.fromEpochSeconds ( epochSeconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochseconds
JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_seconds)
{
// 1. Set epochSeconds to ? ToNumber(epochSeconds).
auto epoch_seconds_value = TRY(vm.argument(0).to_number(vm));
// 2. Set epochSeconds to ? NumberToBigInt(epochSeconds).
auto* epoch_seconds = TRY(number_to_bigint(vm, epoch_seconds_value));
// 3. Let epochNanoseconds be epochSeconds × 10^9ℤ.
auto epoch_nanoseconds = BigInt::create(vm, epoch_seconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000'000 }));
// 4. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
if (!is_valid_epoch_nanoseconds(epoch_nanoseconds))
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
// 5. Return ! CreateTemporalInstant(epochNanoseconds).
return MUST(create_temporal_instant(vm, epoch_nanoseconds));
}
// 8.2.4 Temporal.Instant.fromEpochMilliseconds ( epochMilliseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochmilliseconds
JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_milliseconds)
{
// 1. Set epochMilliseconds to ? ToNumber(epochMilliseconds).
auto epoch_milliseconds_value = TRY(vm.argument(0).to_number(vm));
// 2. Set epochMilliseconds to ? NumberToBigInt(epochMilliseconds).
auto* epoch_milliseconds = TRY(number_to_bigint(vm, epoch_milliseconds_value));
// 3. Let epochNanoseconds be epochMilliseconds × 10^6ℤ.
auto epoch_nanoseconds = BigInt::create(vm, epoch_milliseconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000 }));
// 4. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
if (!is_valid_epoch_nanoseconds(epoch_nanoseconds))
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
// 5. Return ! CreateTemporalInstant(epochNanoseconds).
return MUST(create_temporal_instant(vm, epoch_nanoseconds));
}
// 8.2.5 Temporal.Instant.fromEpochMicroseconds ( epochMicroseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochmicroseconds
JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_microseconds)
{
// 1. Set epochMicroseconds to ? ToBigInt(epochMicroseconds).
auto* epoch_microseconds = TRY(vm.argument(0).to_bigint(vm));
// 2. Let epochNanoseconds be epochMicroseconds × 1000ℤ.
auto epoch_nanoseconds = BigInt::create(vm, epoch_microseconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000 }));
// 3. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
if (!is_valid_epoch_nanoseconds(epoch_nanoseconds))
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
// 4. Return ! CreateTemporalInstant(epochNanoseconds).
return MUST(create_temporal_instant(vm, epoch_nanoseconds));
}
// 8.2.6 Temporal.Instant.fromEpochNanoseconds ( epochNanoseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochnanoseconds
JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_nanoseconds)
{
// 1. Set epochNanoseconds to ? ToBigInt(epochNanoseconds).
auto* epoch_nanoseconds = TRY(vm.argument(0).to_bigint(vm));
// 2. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds))
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
// 3. Return ! CreateTemporalInstant(epochNanoseconds).
return MUST(create_temporal_instant(vm, *epoch_nanoseconds));
}
// 8.2.7 Temporal.Instant.compare ( one, two ), https://tc39.es/proposal-temporal/#sec-temporal.instant.compare
JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::compare)
{
// 1. Set one to ? ToTemporalInstant(one).
auto* one = TRY(to_temporal_instant(vm, vm.argument(0)));
// 2. Set two to ? ToTemporalInstant(two).
auto* two = TRY(to_temporal_instant(vm, vm.argument(1)));
// 3. Return 𝔽(! CompareEpochNanoseconds(one.[[Nanoseconds]], two.[[Nanoseconds]])).
return Value(compare_epoch_nanoseconds(one->nanoseconds(), two->nanoseconds()));
}
}
|
