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use crate::time::Duration;
#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
pub struct Instant(Duration);
#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
pub struct SystemTime(Duration);
pub const UNIX_EPOCH: SystemTime = SystemTime(Duration::from_secs(0));
impl Instant {
pub fn now() -> Instant {
panic!("time not implemented on this platform")
}
pub fn checked_sub_instant(&self, other: &Instant) -> Option<Duration> {
self.0.checked_sub(other.0)
}
pub fn checked_add_duration(&self, other: &Duration) -> Option<Instant> {
Some(Instant(self.0.checked_add(*other)?))
}
pub fn checked_sub_duration(&self, other: &Duration) -> Option<Instant> {
Some(Instant(self.0.checked_sub(*other)?))
}
}
impl SystemTime {
pub fn now() -> SystemTime {
panic!("time not implemented on this platform")
}
pub fn sub_time(&self, other: &SystemTime) -> Result<Duration, Duration> {
self.0.checked_sub(other.0).ok_or_else(|| other.0 - self.0)
}
pub fn checked_add_duration(&self, other: &Duration) -> Option<SystemTime> {
Some(SystemTime(self.0.checked_add(*other)?))
}
pub fn checked_sub_duration(&self, other: &Duration) -> Option<SystemTime> {
Some(SystemTime(self.0.checked_sub(*other)?))
}
}
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