Struct MarkerNotFoundPredicate 

#[non_exhaustive]
pub struct MarkerNotFoundPredicate;

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

This is normally used implicitly by ForkByMarkerProvider.

Trait Implementations

impl Debug for MarkerNotFoundPredicate

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

Formats the value using the given formatter.

impl ForkByErrorPredicate for MarkerNotFoundPredicate

const UNIT_ERROR: DataErrorKind = DataErrorKind::MarkerNotFound

The error to return if there are zero providers.

fn test( &self, _: DataMarkerInfo, _: 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 MarkerNotFoundPredicate

fn eq(&self, other: &MarkerNotFoundPredicate) -> 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 Eq for MarkerNotFoundPredicate

impl StructuralPartialEq for MarkerNotFoundPredicate