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LibJS: Implement TODO()'d parts of balance_duration()

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Massive :yakstack:, so I understand why it was skipped in the first
place :^)
This commit is contained in:
Linus Groh 2021-11-02 00:14:47 +01:00
parent 17fd08d752
commit d49bbb1da3
11 changed files with 320 additions and 6 deletions
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29
Userland/Libraries/LibJS/Runtime/Temporal/AbstractOperations.cpp
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@ -533,6 +533,35 @@ String larger_of_two_temporal_units(StringView unit1, StringView unit2)
return "nanosecond"sv;
}
// 13.24 MergeLargestUnitOption ( options, largestUnit ), https://tc39.es/proposal-temporal/#sec-temporal-mergelargestunitoption
ThrowCompletionOr<Object*> merge_largest_unit_option(GlobalObject& global_object, Object& options, String largest_unit)
{
auto& vm = global_object.vm();
// 1. Let merged be ! OrdinaryObjectCreate(%Object.prototype%).
auto* merged = Object::create(global_object, global_object.object_prototype());
// 2. Let keys be ? EnumerableOwnPropertyNames(options, key).
auto keys = TRY(options.enumerable_own_property_names(Object::PropertyKind::Key));
// 3. For each element nextKey of keys, do
for (auto& key : keys) {
auto next_key = PropertyKey::from_value(global_object, key);
// a. Let propValue be ? Get(options, nextKey).
auto prop_value = TRY(options.get(next_key));
// b. Perform ! CreateDataPropertyOrThrow(merged, nextKey, propValue).
MUST(merged->create_data_property_or_throw(next_key, prop_value));
}
// 4. Perform ! CreateDataPropertyOrThrow(merged, "largestUnit", largestUnit).
MUST(merged->create_data_property_or_throw(vm.names.largestUnit, js_string(vm, move(largest_unit))));
// 5. Return merged.
return merged;
}
// 13.25 MaximumTemporalDurationRoundingIncrement ( unit ), https://tc39.es/proposal-temporal/#sec-temporal-maximumtemporaldurationroundingincrement
Optional<u16> maximum_temporal_duration_rounding_increment(StringView unit)
{