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LocalIncidenceIdentity

Trait LocalIncidenceIdentity 

Source
pub trait LocalIncidenceIdentity: CanonicalIncidenceIdentity {
    // Required method
    fn local_incidence_id(
        &self,
        canonical: Self::CanonicalIncidenceId,
    ) -> Option<Self::IncidenceId>;
}
Expand description

Optional canonical-to-local incidence identity capability.

This reverse lookup is separate from CanonicalIncidenceIdentity because it may require extra memory or may be partial for filtered and projected views.

§Performance

Lookup should be O(1) unless an implementation documents a weaker contract.

Required Methods§

Source

fn local_incidence_id( &self, canonical: Self::CanonicalIncidenceId, ) -> Option<Self::IncidenceId>

Returns the visible local incidence for canonical, if present.

§Performance

Expected O(1) unless the implementation documents otherwise.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§