Enum ConversionError 

pub enum ConversionError {
    UtcHistoryUnsupported,
    InvalidLeapSecond,
    OutOfRange,
    Ut1HorizonExceeded,
    NonFinite,
    UtcBeforeDefinition,
}

Conversion error surface.

Variants are payload-free in v1 to keep the matrix small; they may carry context in later phases if a concrete call-site demands it.

Variants

UtcHistoryUnsupported

The active UTC history or policy cannot represent the requested date.

InvalidLeapSecond

A leap-second label does not correspond to a leap second in the compiled UTC history.

OutOfRange

The converted value leaves the representable range of the target.

Ut1HorizonExceeded

A UT1 conversion was requested outside the horizon of the configured ΔT model or observed-data source.

NonFinite

Input or arithmetic produced NaN or ±∞.

UtcBeforeDefinition

The requested date precedes 1961-01-01, before which UTC was not defined as an international standard.

The crate can back-extrapolate the first official UTC-TAI segment to cover older civil labels, but that extrapolation is not historically defined UTC and is therefore opt-in. Pass a context built with crate::TimeContext::allow_pre_definition_utc to enable it.

Trait Implementations

impl Clone for ConversionError

fn clone(&self) -> ConversionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConversionError

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

Formats the value using the given formatter.

impl Display for ConversionError

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

Formats the value using the given formatter.

impl Error for ConversionError

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

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

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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 ConversionError

fn eq(&self, other: &ConversionError) -> 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 ConversionError

impl Eq for ConversionError

impl StructuralPartialEq for ConversionError