RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 23:07:35 +00:00
Code Issues Activity Actions

LibJS: Implement Temporal.Duration.compare

Browse source
This commit is contained in:
Luke Wilde 2021-11-09 18:25:52 +00:00 • committed by Linus Groh
parent 29072f4b09
commit 5e3fe52fc4
3 changed files with 166 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

69
Userland/Libraries/LibJS/Runtime/Temporal/DurationConstructor.cpp
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -29,6 +30,7 @@ void DurationConstructor::initialize(GlobalObject& global_object)
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.from, from, 1, attr);
define_native_function(vm.names.compare, compare, 2, attr);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
}
@ -100,4 +102,71 @@ JS_DEFINE_NATIVE_FUNCTION(DurationConstructor::from)
return TRY(to_temporal_duration(global_object, item));
}
// 7.2.3 Temporal.Duration.compare ( one, two [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.duration.compare
JS_DEFINE_NATIVE_FUNCTION(DurationConstructor::compare)
{
// 1. Set one to ? ToTemporalDuration(one).
auto* one = TRY(to_temporal_duration(global_object, vm.argument(0)));
// 2. Set two to ? ToTemporalDuration(two).
auto* two = TRY(to_temporal_duration(global_object, vm.argument(1)));
// 3. Set options to ? GetOptionsObject(options).
auto* options = TRY(get_options_object(global_object, vm.argument(2)));
// 4. Let relativeTo be ? ToRelativeTemporalObject(options).
auto relative_to = TRY(to_relative_temporal_object(global_object, *options));
// 5. Let shift1 be ? CalculateOffsetShift(relativeTo, one.[[Years]], one.[[Months]], one.[[Weeks]], one.[[Days]], one.[[Hours]], one.[[Minutes]], one.[[Seconds]], one.[[Milliseconds]], one.[[Microseconds]], one.[[Nanoseconds]]).
auto shift1 = TRY(calculate_offset_shift(global_object, relative_to, one->years(), one->months(), one->weeks(), one->days(), one->hours(), one->minutes(), one->seconds(), one->milliseconds(), one->microseconds(), one->nanoseconds()));
// 6. Let shift2 be ? CalculateOffsetShift(relativeTo, two.[[Years]], two.[[Months]], two.[[Weeks]], two.[[Days]], two.[[Hours]], two.[[Minutes]], two.[[Seconds]], two.[[Milliseconds]], two.[[Microseconds]], two.[[Nanoseconds]]).
auto shift2 = TRY(calculate_offset_shift(global_object, relative_to, two->years(), two->months(), two->weeks(), two->days(), two->hours(), two->minutes(), two->seconds(), two->milliseconds(), two->microseconds(), two->nanoseconds()));
double days1;
double days2;
// 7. If any of one.[[Years]], two.[[Years]], one.[[Months]], two.[[Months]], one.[[Weeks]], or two.[[Weeks]] are not 0, then
if (one->years() != 0 || two->years() != 0 || one->months() != 0 || two->months() != 0 || one->weeks() != 0 || two->weeks() != 0) {
// a. Let unbalanceResult1 be ? UnbalanceDurationRelative(one.[[Years]], one.[[Months]], one.[[Weeks]], one.[[Days]], "day", relativeTo).
auto unbalance_result1 = TRY(unbalance_duration_relative(global_object, one->years(), one->months(), one->weeks(), one->days(), "day", relative_to));
// b. Let unbalanceResult2 be ? UnbalanceDurationRelative(two.[[Years]], two.[[Months]], two.[[Weeks]], two.[[Days]], "day", relativeTo).
auto unbalance_result2 = TRY(unbalance_duration_relative(global_object, two->years(), two->months(), two->weeks(), two->days(), "day", relative_to));
// c. Let days1 be unbalanceResult1.[[Days]].
days1 = unbalance_result1.days;
// d. Let days2 be unbalanceResult2.[[Days]].
days2 = unbalance_result2.days;
}
// 8. Else,
else {
// a. Let days1 be one.[[Days]].
days1 = one->days();
// b. Let days2 be two.[[Days]].
days2 = two->days();
}
// 9. Let ns1 be ! TotalDurationNanoseconds(days1, one.[[Hours]], one.[[Minutes]], one.[[Seconds]], one.[[Milliseconds]], one.[[Microseconds]], one.[[Nanoseconds]], shift1).
auto* nanoseconds1_bigint = js_bigint(vm, Crypto::SignedBigInteger::create_from((i64)one->nanoseconds()));
auto* ns1 = total_duration_nanoseconds(global_object, days1, one->hours(), one->minutes(), one->seconds(), one->milliseconds(), one->microseconds(), *nanoseconds1_bigint, shift1);
// 10. Let ns2 be ! TotalDurationNanoseconds(days2, two.[[Hours]], two.[[Minutes]], two.[[Seconds]], two.[[Milliseconds]], two.[[Microseconds]], two.[[Nanoseconds]], shift2).
auto* nanoseconds2_bigint = js_bigint(vm, Crypto::SignedBigInteger::create_from((i64)two->nanoseconds()));
auto* ns2 = total_duration_nanoseconds(global_object, days2, two->hours(), two->minutes(), two->seconds(), two->milliseconds(), two->microseconds(), *nanoseconds2_bigint, shift2);
// 11. If ns1 > ns2, return 1.
if (ns1->big_integer() > ns2->big_integer())
return 1;
// 12. If ns1 < ns2, return −1.
if (ns1->big_integer() < ns2->big_integer())
return -1;
// 13. Return 0.
return 0;
}
}