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LibJS: Implement Temporal.PlainTime.prototype.since/until
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github-actions[bot]
2024-11-24 00:37:42 +00:00
Author: https://github.com/trflynn89
Commit: 85eef698b9
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2535
6 changed files with 244 additions and 0 deletions
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@ -606,6 +606,38 @@ Time round_time(Time const& time, u64 increment, Unit unit, RoundingMode roundin
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VERIFY_NOT_REACHED();
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}
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// 4.5.17 DifferenceTemporalPlainTime ( operation, temporalTime, other, options ), https://tc39.es/proposal-temporal/#sec-temporal-differencetemporalplaintime
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ThrowCompletionOr<GC::Ref<Duration>> difference_temporal_plain_time(VM& vm, DurationOperation operation, PlainTime const& temporal_time, Value other_value, Value options)
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{
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// 1. Set other to ? ToTemporalTime(other).
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auto other = TRY(to_temporal_time(vm, other_value));
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// 2. Let resolvedOptions be ? GetOptionsObject(options).
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auto resolved_options = TRY(get_options_object(vm, options));
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// 3. Let settings be ? GetDifferenceSettings(operation, resolvedOptions, TIME, « », NANOSECOND, HOUR).
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auto settings = TRY(get_difference_settings(vm, operation, resolved_options, UnitGroup::Time, {}, Unit::Nanosecond, Unit::Hour));
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// 4. Let timeDuration be DifferenceTime(temporalTime.[[Time]], other.[[Time]]).
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auto time_duration = difference_time(temporal_time.time(), other->time());
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// 5. Set timeDuration to ! RoundTimeDuration(timeDuration, settings.[[RoundingIncrement]], settings.[[SmallestUnit]], settings.[[RoundingMode]]).
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time_duration = MUST(round_time_duration(vm, time_duration, Crypto::UnsignedBigInteger { settings.rounding_increment }, settings.smallest_unit, settings.rounding_mode));
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// 6. Let duration be ! CombineDateAndTimeDuration(ZeroDateDuration(), timeDuration).
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auto duration = MUST(combine_date_and_time_duration(vm, zero_date_duration(vm), move(time_duration)));
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// 7. Let result be ! TemporalDurationFromInternal(duration, settings.[[LargestUnit]]).
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auto result = MUST(temporal_duration_from_internal(vm, duration, settings.largest_unit));
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// 8. If operation is SINCE, set result to CreateNegatedTemporalDuration(result).
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if (operation == DurationOperation::Since)
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result = create_negated_temporal_duration(vm, result);
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// 9. Return result.
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return result;
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}
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// 4.5.18 AddDurationToTime ( operation, temporalTime, temporalDurationLike ), https://tc39.es/proposal-temporal/#sec-temporal-adddurationtotime
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ThrowCompletionOr<GC::Ref<PlainTime>> add_duration_to_time(VM& vm, ArithmeticOperation operation, PlainTime const& temporal_time, Value temporal_duration_like)
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{
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