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LibJS: Change total_duration_nanoseconds() from JS to Crypto BigInts
This removes a bunch of silly wrapping and unwrapping of Crypto SignedBigInteger values in JS BigInt objects, which isn't even intended by the spec - it just wants us to take an integer value, not a BigInt specifically. Nice opportunity to remove a couple of allocations. :^)
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3 changed files with 18 additions and 24 deletions
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@ -394,14 +394,12 @@ ThrowCompletionOr<double> calculate_offset_shift(GlobalObject& global_object, Va
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}
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// 7.5.17 TotalDurationNanoseconds ( days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, offsetShift ), https://tc39.es/proposal-temporal/#sec-temporal-totaldurationnanoseconds
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BigInt* total_duration_nanoseconds(GlobalObject& global_object, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, BigInt const& nanoseconds, double offset_shift)
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Crypto::SignedBigInteger total_duration_nanoseconds(double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, Crypto::SignedBigInteger const& nanoseconds, double offset_shift)
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{
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auto& vm = global_object.vm();
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VERIFY(offset_shift == trunc(offset_shift));
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// 1. Set nanoseconds to ℝ(nanoseconds).
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auto result_nanoseconds = nanoseconds.big_integer();
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auto result_nanoseconds = nanoseconds;
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// TODO: Add a way to create SignedBigIntegers from doubles with full precision and remove this restriction
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VERIFY(AK::is_within_range<i64>(days) && AK::is_within_range<i64>(hours) && AK::is_within_range<i64>(minutes) && AK::is_within_range<i64>(seconds) && AK::is_within_range<i64>(milliseconds) && AK::is_within_range<i64>(microseconds));
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@ -422,7 +420,7 @@ BigInt* total_duration_nanoseconds(GlobalObject& global_object, double days, dou
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// 7. Set microseconds to ℝ(microseconds) + milliseconds × 1000.
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auto total_microseconds = Crypto::SignedBigInteger::create_from(microseconds).plus(total_milliseconds.multiplied_by(Crypto::UnsignedBigInteger(1000)));
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// 8. Return nanoseconds + microseconds × 1000.
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return js_bigint(vm, result_nanoseconds.plus(total_microseconds.multiplied_by(Crypto::UnsignedBigInteger(1000))));
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return result_nanoseconds.plus(total_microseconds.multiplied_by(Crypto::UnsignedBigInteger(1000)));
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}
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// 7.5.18 BalanceDuration ( days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, largestUnit [ , relativeTo ] ), https://tc39.es/proposal-temporal/#sec-temporal-balanceduration
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@ -432,7 +430,7 @@ ThrowCompletionOr<TimeDurationRecord> balance_duration(GlobalObject& global_obje
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// 1. If relativeTo is not present, set relativeTo to undefined.
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Crypto::SignedBigInteger total_nanoseconds;
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BigInt* total_nanoseconds_bigint;
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// 2. If Type(relativeTo) is Object and relativeTo has an [[InitializedTemporalZonedDateTime]] internal slot, then
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if (relative_to && is<ZonedDateTime>(*relative_to)) {
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auto& relative_to_zoned_date_time = static_cast<ZonedDateTime&>(*relative_to);
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@ -441,24 +439,24 @@ ThrowCompletionOr<TimeDurationRecord> balance_duration(GlobalObject& global_obje
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auto* end_ns = TRY(add_zoned_date_time(global_object, relative_to_zoned_date_time.nanoseconds(), &relative_to_zoned_date_time.time_zone(), relative_to_zoned_date_time.calendar(), 0, 0, 0, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds.big_integer().to_double()));
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// b. Set nanoseconds to endNs − relativeTo.[[Nanoseconds]].
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total_nanoseconds = end_ns->big_integer().minus(relative_to_zoned_date_time.nanoseconds().big_integer());
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total_nanoseconds_bigint = js_bigint(vm, end_ns->big_integer().minus(relative_to_zoned_date_time.nanoseconds().big_integer()));
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}
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// 3. Else,
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else {
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// a. Set nanoseconds to ℤ(! TotalDurationNanoseconds(days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, 0)).
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total_nanoseconds = total_duration_nanoseconds(global_object, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, 0)->big_integer();
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total_nanoseconds_bigint = js_bigint(vm, total_duration_nanoseconds(days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds.big_integer(), 0));
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}
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// 4. If largestUnit is one of "year", "month", "week", or "day", then
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if (largest_unit.is_one_of("year"sv, "month"sv, "week"sv, "day"sv)) {
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// a. Let result be ? NanosecondsToDays(nanoseconds, relativeTo).
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auto result = TRY(nanoseconds_to_days(global_object, *js_bigint(vm, total_nanoseconds), relative_to ?: js_undefined()));
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auto result = TRY(nanoseconds_to_days(global_object, *total_nanoseconds_bigint, relative_to ?: js_undefined()));
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// b. Set days to result.[[Days]].
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days = result.days;
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// c. Set nanoseconds to result.[[Nanoseconds]].
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total_nanoseconds = result.nanoseconds->big_integer();
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total_nanoseconds_bigint = result.nanoseconds.cell();
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}
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// 5. Else,
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else {
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@ -473,14 +471,14 @@ ThrowCompletionOr<TimeDurationRecord> balance_duration(GlobalObject& global_obje
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microseconds = 0;
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// 7. Set nanoseconds to ℝ(nanoseconds).
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double result_nanoseconds = total_nanoseconds.to_double();
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auto total_nanoseconds = total_nanoseconds_bigint->big_integer();
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// 8. If nanoseconds < 0, let sign be −1; else, let sign be 1.
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i8 sign = total_nanoseconds.is_negative() ? -1 : 1;
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// 9. Set nanoseconds to abs(nanoseconds).
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total_nanoseconds = Crypto::SignedBigInteger(total_nanoseconds.unsigned_value());
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result_nanoseconds = fabs(result_nanoseconds);
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auto result_nanoseconds = total_nanoseconds.to_double();
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// 10. If largestUnit is "year", "month", "week", "day", or "hour", then
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if (largest_unit.is_one_of("year"sv, "month"sv, "week"sv, "day"sv, "hour"sv)) {
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@ -1162,10 +1160,8 @@ ThrowCompletionOr<RoundedDuration> round_duration(GlobalObject& global_object, d
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// 7. If unit is one of "year", "month", "week", or "day", then
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if (unit.is_one_of("year"sv, "month"sv, "week"sv, "day"sv)) {
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auto* nanoseconds_bigint = js_bigint(vm, Crypto::SignedBigInteger::create_from((i64)nanoseconds));
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// a. Let nanoseconds be ! TotalDurationNanoseconds(0, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, 0).
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nanoseconds_bigint = total_duration_nanoseconds(global_object, 0, hours, minutes, seconds, milliseconds, microseconds, *nanoseconds_bigint, 0);
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auto nanoseconds_bigint = total_duration_nanoseconds(0, hours, minutes, seconds, milliseconds, microseconds, Crypto::SignedBigInteger::create_from((i64)nanoseconds), 0);
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// b. Let intermediate be undefined.
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ZonedDateTime* intermediate = nullptr;
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@ -1177,7 +1173,7 @@ ThrowCompletionOr<RoundedDuration> round_duration(GlobalObject& global_object, d
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}
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// d. Let result be ? NanosecondsToDays(nanoseconds, intermediate).
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auto result = TRY(nanoseconds_to_days(global_object, *nanoseconds_bigint, intermediate));
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auto result = TRY(nanoseconds_to_days(global_object, *js_bigint(vm, nanoseconds_bigint), intermediate));
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// e. Set days to days + result.[[Days]] + result.[[Nanoseconds]] / result.[[DayLength]].
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auto nanoseconds_division_result = result.nanoseconds->big_integer().divided_by(Crypto::UnsignedBigInteger::create_from((u64)result.day_length));
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@ -1555,7 +1551,7 @@ ThrowCompletionOr<DurationRecord> adjust_rounded_duration_days(GlobalObject& glo
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auto& relative_to = static_cast<ZonedDateTime&>(*relative_to_object);
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// 2. Let timeRemainderNs be ! TotalDurationNanoseconds(0, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, 0).
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auto time_remainder_ns = total_duration_nanoseconds(global_object, 0, hours, minutes, seconds, milliseconds, microseconds, *js_bigint(vm, Crypto::SignedBigInteger::create_from((i64)nanoseconds)), 0)->big_integer();
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auto time_remainder_ns = total_duration_nanoseconds(0, hours, minutes, seconds, milliseconds, microseconds, Crypto::SignedBigInteger::create_from((i64)nanoseconds), 0);
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i32 direction;
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