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LibJS: Add fast path TimeZone conversion to PlainDate#toZonedDateTime
This is a normative chane in the Temporal spec.
See: fcab1af
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2 changed files with 42 additions and 12 deletions
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@ -525,23 +525,33 @@ JS_DEFINE_NATIVE_FUNCTION(PlainDatePrototype::to_zoned_date_time)
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// 3. If Type(item) is Object, then
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if (item.is_object()) {
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// a. Let timeZoneLike be ? Get(item, "timeZone").
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auto time_zone_like = TRY(item.as_object().get(vm.names.timeZone));
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// b. If timeZoneLike is undefined, then
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if (time_zone_like.is_undefined()) {
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// i. Let timeZone be ? ToTemporalTimeZone(item).
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time_zone = TRY(to_temporal_time_zone(vm, item));
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// a. If item has an [[InitializedTemporalTimeZone]] internal slot, then
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if (is<TimeZone>(item.as_object())) {
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// i. Let timeZone be item.
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time_zone = &item.as_object();
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// ii. Let temporalTime be undefined.
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}
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// c. Else,
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// b. Else,
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else {
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// i. Let timeZone be ? ToTemporalTimeZone(timeZoneLike).
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time_zone = TRY(to_temporal_time_zone(vm, time_zone_like));
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// i. Let timeZoneLike be ? Get(item, "timeZone").
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auto time_zone_like = TRY(item.as_object().get(vm.names.timeZone));
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// ii. Let temporalTime be ? Get(item, "plainTime").
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temporal_time_value = TRY(item.as_object().get(vm.names.plainTime));
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// ii. If timeZoneLike is undefined, then
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if (time_zone_like.is_undefined()) {
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// 1. Let timeZone be ? ToTemporalTimeZone(item).
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time_zone = TRY(to_temporal_time_zone(vm, item));
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// 2. Let temporalTime be undefined.
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}
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// iii. Else,
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else {
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// 1. Let timeZone be ? ToTemporalTimeZone(timeZoneLike).
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time_zone = TRY(to_temporal_time_zone(vm, time_zone_like));
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// 2. Let temporalTime be ? Get(item, "plainTime").
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temporal_time_value = TRY(item.as_object().get(vm.names.plainTime));
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}
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}
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}
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// 4. Else,
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