Struct icu_provider_adapters::fork::predicates::MissingDataKeyPredicate

#[non_exhaustive]
pub struct MissingDataKeyPredicate;

A predicate that allows forking providers to search for a provider that supports a particular data key.

This is normally used implicitly by ForkByKeyProvider.

Trait Implementations

impl Debug for MissingDataKeyPredicate

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

Formats the value using the given formatter.

impl ForkByErrorPredicate for MissingDataKeyPredicate

const UNIT_ERROR: DataErrorKind = DataErrorKind::MissingDataKey

The error to return if there are zero providers.

fn test(&self, _: DataKey, _: Option<DataRequest<'_>>, err: DataError) -> bool

This function is called when a data request fails and there are additional providers that could possibly fulfill the request.

impl PartialEq for MissingDataKeyPredicate

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for MissingDataKeyPredicate

impl StructuralPartialEq for MissingDataKeyPredicate