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/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/Temporal/PlainTime.h>
#include <LibJS/Runtime/Value.h>
namespace JS::Temporal {
// 4.5.5 IsValidTime ( hour, minute, second, millisecond, microsecond, nanosecond ), https://tc39.es/proposal-temporal/#sec-temporal-isvalidtime
bool is_valid_time(u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond)
{
// 1. Assert: hour, minute, second, millisecond, microsecond, and nanosecond are integers.
// 2. If hour < 0 or hour > 23, then
if (hour > 23) {
// a. Return false.
return false;
}
// 3. If minute < 0 or minute > 59, then
if (minute > 59) {
// a. Return false.
return false;
}
// 4. If second < 0 or second > 59, then
if (second > 59) {
// a. Return false.
return false;
}
// 5. If millisecond < 0 or millisecond > 999, then
if (millisecond > 999) {
// a. Return false.
return false;
}
// 6. If microsecond < 0 or microsecond > 999, then
if (microsecond > 999) {
// a. Return false.
return false;
}
// 7. If nanosecond < 0 or nanosecond > 999, then
if (nanosecond > 999) {
// a. Return false.
return false;
}
// 8. Return true.
return true;
}
// 4.5.6 BalanceTime ( hour, minute, second, millisecond, microsecond, nanosecond ), https://tc39.es/proposal-temporal/#sec-temporal-balancetime
DaysAndTime balance_time(i64 hour, i64 minute, i64 second, i64 millisecond, i64 microsecond, i64 nanosecond)
{
// 1. Assert: hour, minute, second, millisecond, microsecond, and nanosecond are integers.
// 2. Set microsecond to microsecond + floor(nanosecond / 1000).
microsecond += nanosecond / 1000;
// 3. Set nanosecond to nanosecond modulo 1000.
nanosecond %= 1000;
// 4. Set millisecond to millisecond + floor(microsecond / 1000).
millisecond += microsecond / 1000;
// 5. Set microsecond to microsecond modulo 1000.
microsecond %= 1000;
// 6. Set second to second + floor(millisecond / 1000).
second += millisecond / 1000;
// 7. Set millisecond to millisecond modulo 1000.
millisecond %= 1000;
// 8. Set minute to minute + floor(second / 60).
minute += second / 60;
// 9. Set second to second modulo 60.
second %= 60;
// 10. Set hour to hour + floor(minute / 60).
hour += minute / 60;
// 11. Set minute to minute modulo 60.
minute %= 60;
// 12. Let days be floor(hour / 24).
u8 days = hour / 24;
// 13. Set hour to hour modulo 24.
hour %= 24;
// 14. Return the new Record { [[Days]]: days, [[Hour]]: hour, [[Minute]]: minute, [[Second]]: second, [[Millisecond]]: millisecond, [[Microsecond]]: microsecond, [[Nanosecond]]: nanosecond }.
return DaysAndTime {
.days = static_cast<i32>(days),
.hour = static_cast<u8>(hour),
.minute = static_cast<u8>(minute),
.second = static_cast<u8>(second),
.millisecond = static_cast<u16>(millisecond),
.microsecond = static_cast<u16>(microsecond),
.nanosecond = static_cast<u16>(nanosecond),
};
}
}
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