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LibJS: Implement the Temporal.Duration relative-to ZonedDateTime options

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Timothy Flynn 2024-11-25 08:40:25 -05:00 • committed by Andreas Kling
commit 18f95434bc
Notes: github-actions[bot] 2024-11-26 10:04:10 +00:00
9 changed files with 296 additions and 35 deletions
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26
Libraries/LibJS/Runtime/Temporal/DurationConstructor.cpp
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@ -9,6 +9,7 @@
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
#include <LibJS/Runtime/Temporal/Duration.h>
#include <LibJS/Runtime/Temporal/DurationConstructor.h>
#include <LibJS/Runtime/Temporal/ZonedDateTime.h>
namespace JS::Temporal {
@ -149,12 +150,25 @@ JS_DEFINE_NATIVE_FUNCTION(DurationConstructor::compare)
// 12. If zonedRelativeTo is not undefined, and either TemporalUnitCategory(largestUnit1) or TemporalUnitCategory(largestUnit2) is date, then
if (zoned_relative_to && (temporal_unit_category(largest_unit1) == UnitCategory::Date || temporal_unit_category(largest_unit2) == UnitCategory::Date)) {
// FIXME: a. Let timeZone be zonedRelativeTo.[[TimeZone]].
// FIXME: b. Let calendar be zonedRelativeTo.[[Calendar]].
// FIXME: c. Let after1 be ? AddZonedDateTime(zonedRelativeTo.[[EpochNanoseconds]], timeZone, calendar, duration1, constrain).
// FIXME: d. Let after2 be ? AddZonedDateTime(zonedRelativeTo.[[EpochNanoseconds]], timeZone, calendar, duration2, constrain).
// FIXME: e. If after1 > after2, return 1𝔽.
// FIXME: f. If after1 < after2, return -1𝔽.
// a. Let timeZone be zonedRelativeTo.[[TimeZone]].
auto const time_zone = zoned_relative_to->time_zone();
// b. Let calendar be zonedRelativeTo.[[Calendar]].
auto const& calendar = zoned_relative_to->calendar();
// c. Let after1 be ? AddZonedDateTime(zonedRelativeTo.[[EpochNanoseconds]], timeZone, calendar, duration1, CONSTRAIN).
auto after1 = TRY(add_zoned_date_time(vm, zoned_relative_to->epoch_nanoseconds()->big_integer(), time_zone, calendar, duration1, Overflow::Constrain));
// d. Let after2 be ? AddZonedDateTime(zonedRelativeTo.[[EpochNanoseconds]], timeZone, calendar, duration2, CONSTRAIN).
auto after2 = TRY(add_zoned_date_time(vm, zoned_relative_to->epoch_nanoseconds()->big_integer(), time_zone, calendar, duration2, Overflow::Constrain));
// e. If after1 > after2, return 1𝔽.
if (after1 > after2)
return 1;
// f. If after1 < after2, return -1𝔽.
if (after1 < after2)
return -1;
// g. Return +0𝔽.
return 0;