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https://github.com/RGBCube/serenity
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LibJS: Add a bunch of Temporal Abstract Operations
These will allow us to (partially) implement
Temporal.Instant.prototype.{until, since}
This commit is contained in:
Idan Horowitz
Linus Groh
parent
bcdad57670
commit
24b78fff7d
8 changed files with 373 additions and 1 deletions
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@ -10,6 +10,7 @@
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#include <LibJS/Runtime/Temporal/AbstractOperations.h>
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#include <LibJS/Runtime/Temporal/Duration.h>
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#include <LibJS/Runtime/Temporal/DurationConstructor.h>
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#include <LibJS/Runtime/Temporal/ZonedDateTime.h>
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namespace JS::Temporal {
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@ -269,6 +270,182 @@ Duration* create_temporal_duration(GlobalObject& global_object, double years, do
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return object;
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}
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// 7.5.10 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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{
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auto& vm = global_object.vm();
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// 1. Assert: offsetShift is an integer.
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VERIFY(offset_shift == trunc(offset_shift));
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// 2. Set nanoseconds to ℝ(nanoseconds).
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auto result_nanoseconds = nanoseconds.big_integer();
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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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// 3. If days ≠ 0, then
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if (days != 0) {
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// a. Set nanoseconds to nanoseconds − offsetShift.
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result_nanoseconds = result_nanoseconds.minus(Crypto::SignedBigInteger::create_from(offset_shift));
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}
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// 4. Set hours to ℝ(hours) + ℝ(days) × 24.
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auto total_hours = Crypto::SignedBigInteger::create_from(hours).plus(Crypto::SignedBigInteger::create_from(days).multiplied_by(Crypto::UnsignedBigInteger(24)));
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// 5. Set minutes to ℝ(minutes) + hours × 60.
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auto total_minutes = Crypto::SignedBigInteger::create_from(minutes).plus(total_hours.multiplied_by(Crypto::UnsignedBigInteger(60)));
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// 6. Set seconds to ℝ(seconds) + minutes × 60.
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auto total_seconds = Crypto::SignedBigInteger::create_from(seconds).plus(total_minutes.multiplied_by(Crypto::UnsignedBigInteger(60)));
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// 7. Set milliseconds to ℝ(milliseconds) + seconds × 1000.
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auto total_milliseconds = Crypto::SignedBigInteger::create_from(milliseconds).plus(total_seconds.multiplied_by(Crypto::UnsignedBigInteger(1000)));
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// 8. 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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// 9. 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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}
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// 7.5.11 BalanceDuration ( days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, largestUnit [ , relativeTo ] ), https://tc39.es/proposal-temporal/#sec-temporal-balanceduration
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Optional<BalancedDuration> balance_duration(GlobalObject& global_object, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, BigInt const& nanoseconds, String const& largest_unit, Object* relative_to)
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{
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auto& vm = global_object.vm();
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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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// 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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// a. Let endNs be ? AddZonedDateTime(relativeTo.[[Nanoseconds]], relativeTo.[[TimeZone]], relativeTo.[[Calendar]], 0, 0, 0, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds).
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TODO();
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if (vm.exception())
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return {};
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// b. Set nanoseconds to endNs − relativeTo.[[Nanoseconds]].
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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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}
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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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TODO();
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if (vm.exception())
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return {};
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// b. Set days to result.[[Days]].
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// c. Set nanoseconds to result.[[Nanoseconds]].
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}
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// 5. Else,
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else {
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// a. Set days to 0.
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days = 0;
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}
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// 6. Set hours, minutes, seconds, milliseconds, and microseconds to 0.
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hours = 0;
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minutes = 0;
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seconds = 0;
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milliseconds = 0;
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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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// 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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// 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, "day"sv, "hour"sv)) {
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// a. Set microseconds to floor(nanoseconds / 1000).
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auto nanoseconds_division_result = total_nanoseconds.divided_by(Crypto::UnsignedBigInteger(1000));
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// b. Set nanoseconds to nanoseconds modulo 1000.
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result_nanoseconds = nanoseconds_division_result.remainder.to_double();
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// c. Set milliseconds to floor(microseconds / 1000).
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auto microseconds_division_result = nanoseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(1000));
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// d. Set microseconds to microseconds modulo 1000.
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microseconds = microseconds_division_result.remainder.to_double();
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// e. Set seconds to floor(milliseconds / 1000).
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auto milliseconds_division_result = microseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(1000));
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// f. Set milliseconds to milliseconds modulo 1000.
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milliseconds = milliseconds_division_result.remainder.to_double();
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// g. Set minutes to floor(seconds / 60).
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auto seconds_division_result = milliseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(60));
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// h. Set seconds to seconds modulo 60.
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seconds = seconds_division_result.remainder.to_double();
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// i. Set hours to floor(minutes / 60).
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auto minutes_division_result = milliseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(60));
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hours = minutes_division_result.quotient.to_double();
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// j. Set minutes to minutes modulo 60.
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minutes = minutes_division_result.remainder.to_double();
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}
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// 11. Else if largestUnit is "minute", then
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else if (largest_unit == "minute"sv) {
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// a. Set microseconds to floor(nanoseconds / 1000).
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auto nanoseconds_division_result = total_nanoseconds.divided_by(Crypto::UnsignedBigInteger(1000));
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// b. Set nanoseconds to nanoseconds modulo 1000.
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result_nanoseconds = nanoseconds_division_result.remainder.to_double();
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// c. Set milliseconds to floor(microseconds / 1000).
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auto microseconds_division_result = nanoseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(1000));
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// d. Set microseconds to microseconds modulo 1000.
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microseconds = microseconds_division_result.remainder.to_double();
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// e. Set seconds to floor(milliseconds / 1000).
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auto milliseconds_division_result = microseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(1000));
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// f. Set milliseconds to milliseconds modulo 1000.
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milliseconds = milliseconds_division_result.remainder.to_double();
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// g. Set minutes to floor(seconds / 60).
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auto seconds_division_result = milliseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(60));
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minutes = seconds_division_result.quotient.to_double();
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// h. Set seconds to seconds modulo 60.
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seconds = seconds_division_result.remainder.to_double();
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}
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// 12. Else if largestUnit is "second", then
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else if (largest_unit == "second"sv) {
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// a. Set microseconds to floor(nanoseconds / 1000).
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auto nanoseconds_division_result = total_nanoseconds.divided_by(Crypto::UnsignedBigInteger(1000));
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// b. Set nanoseconds to nanoseconds modulo 1000.
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result_nanoseconds = nanoseconds_division_result.remainder.to_double();
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// c. Set milliseconds to floor(microseconds / 1000).
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auto microseconds_division_result = nanoseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(1000));
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// d. Set microseconds to microseconds modulo 1000.
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microseconds = microseconds_division_result.remainder.to_double();
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// e. Set seconds to floor(milliseconds / 1000).
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auto milliseconds_division_result = microseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(1000));
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seconds = milliseconds_division_result.quotient.to_double();
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// f. Set milliseconds to milliseconds modulo 1000.
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milliseconds = milliseconds_division_result.remainder.to_double();
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}
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// 13. Else if largestUnit is "millisecond", then
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else if (largest_unit == "millisecond"sv) {
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// a. Set microseconds to floor(nanoseconds / 1000).
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auto nanoseconds_division_result = total_nanoseconds.divided_by(Crypto::UnsignedBigInteger(1000));
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// b. Set nanoseconds to nanoseconds modulo 1000.
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result_nanoseconds = nanoseconds_division_result.remainder.to_double();
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// c. Set milliseconds to floor(microseconds / 1000).
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auto microseconds_division_result = nanoseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(1000));
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milliseconds = microseconds_division_result.quotient.to_double();
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// d. Set microseconds to microseconds modulo 1000.
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microseconds = microseconds_division_result.remainder.to_double();
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}
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// 14. Else if largestUnit is "microsecond", then
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else if (largest_unit == "microsecond"sv) {
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// a. Set microseconds to floor(nanoseconds / 1000).
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auto nanoseconds_division_result = total_nanoseconds.divided_by(Crypto::UnsignedBigInteger(1000));
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microseconds = nanoseconds_division_result.quotient.to_double();
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// b. Set nanoseconds to nanoseconds modulo 1000.
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result_nanoseconds = nanoseconds_division_result.remainder.to_double();
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}
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// 15. Else,
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else {
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// a. Assert: largestUnit is "nanosecond".
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VERIFY(largest_unit == "nanosecond"sv);
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}
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// 16. Return the Record { [[Days]]: 𝔽(days), [[Hours]]: 𝔽(hours × sign), [[Minutes]]: 𝔽(minutes × sign), [[Seconds]]: 𝔽(seconds × sign), [[Milliseconds]]: 𝔽(milliseconds × sign), [[Microseconds]]: 𝔽(microseconds × sign), [[Nanoseconds]]: 𝔽(nanoseconds × sign) }.
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return BalancedDuration { .days = days, .hours = hours * sign, .minutes = minutes * sign, .seconds = seconds * sign, .milliseconds = milliseconds * sign, .microseconds = microseconds * sign, .nanoseconds = result_nanoseconds * sign };
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}
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// 7.5.19 ToLimitedTemporalDuration ( temporalDurationLike, disallowedFields ),https://tc39.es/proposal-temporal/#sec-temporal-tolimitedtemporalduration
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Optional<TemporalDuration> to_limited_temporal_duration(GlobalObject& global_object, Value temporal_duration_like, Vector<StringView> const& disallowed_fields)
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{
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