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LibJS: Implement Temporal AO BalanceDuration

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Shannon Booth 2024-01-10 20:50:56 +13:00 • committed by Andreas Kling
parent 276930185a
commit c4f37c1bfa
2 changed files with 19 additions and 0 deletions
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18
Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp
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@ -458,6 +458,24 @@ ThrowCompletionOr<double> calculate_offset_shift(VM& vm, Value relative_to_value
return offset_after - offset_before;
}
// 7.5.17 BalanceTimeDuration ( days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, largestUnit ), https://tc39.es/proposal-temporal/#sec-temporal-balancetimeduration
ThrowCompletionOr<TimeDurationRecord> balance_time_duration(VM& vm, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, Crypto::SignedBigInteger const& nanoseconds, StringView largest_unit)
{
// 1. Let balanceResult be BalancePossiblyInfiniteTimeDuration(days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, largestUnit).
auto balance_result = balance_possibly_infinite_time_duration(vm, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, largest_unit);
// 2. If balanceResult is positive overflow or negative overflow, then
if (balance_result.has<Overflow>()) {
// a. Throw a RangeError exception.
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidDuration);
}
// 3. Else,
else {
// a. Return balanceResult.
return balance_result.get<TimeDurationRecord>();
}
}
// 7.5.17 TotalDurationNanoseconds ( days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, offsetShift ), https://tc39.es/proposal-temporal/#sec-temporal-totaldurationnanoseconds
Crypto::SignedBigInteger total_duration_nanoseconds(double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, Crypto::SignedBigInteger const& nanoseconds, double offset_shift)
{

1
Userland/Libraries/LibJS/Runtime/Temporal/Duration.h
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@ -133,6 +133,7 @@ ThrowCompletionOr<Duration*> create_temporal_duration(VM&, double years, double
Duration* create_negated_temporal_duration(VM&, Duration const& duration);
ThrowCompletionOr<double> calculate_offset_shift(VM&, Value relative_to_value, double years, double months, double weeks, double days);
Crypto::SignedBigInteger total_duration_nanoseconds(double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, Crypto::SignedBigInteger const& nanoseconds, double offset_shift);
ThrowCompletionOr<TimeDurationRecord> balance_time_duration(VM& vm, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, Crypto::SignedBigInteger const& nanoseconds, StringView largest_unit);
ThrowCompletionOr<TimeDurationRecord> balance_duration(VM&, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, Crypto::SignedBigInteger const& nanoseconds, StringView largest_unit, Object* relative_to = nullptr);
enum class Overflow {