Enum RoundingError

pub enum RoundingError {
    DurationExceedsTimestamp,
    DurationExceedsLimit,
    TimestampExceedsLimit,
}

An error from rounding by TimeDelta

See: DurationRound

Variants

DurationExceedsTimestamp

Error when the TimeDelta exceeds the TimeDelta from or until the Unix epoch.

Note: this error is not produced anymore.

DurationExceedsLimit

Error when TimeDelta.num_nanoseconds exceeds the limit.

let dt = NaiveDate::from_ymd_opt(2260, 12, 31)
    .unwrap()
    .and_hms_nano_opt(23, 59, 59, 1_75_500_000)
    .unwrap()
    .and_utc();

assert_eq!(
    dt.duration_round(TimeDelta::try_days(300 * 365).unwrap()),
    Err(RoundingError::DurationExceedsLimit)
);

TimestampExceedsLimit

Error when DateTime.timestamp_nanos exceeds the limit.

let dt = Utc.with_ymd_and_hms(2300, 12, 12, 0, 0, 0).unwrap();

assert_eq!(
    dt.duration_round(TimeDelta::try_days(1).unwrap()),
    Err(RoundingError::TimestampExceedsLimit)
);

Trait Implementations

impl Clone for RoundingError

fn clone(&self) -> RoundingError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RoundingError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for RoundingError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for RoundingError

Available on crate feature std only.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for RoundingError

fn eq(&self, other: &RoundingError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for RoundingError

impl Eq for RoundingError

impl StructuralPartialEq for RoundingError

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

• DurationExceedsTimestamp: 0 bytes
• DurationExceedsLimit: 0 bytes
• TimestampExceedsLimit: 0 bytes