Trait sp_runtime::traits::Lookup[−][src]

pub trait Lookup {
    type Source;
    type Target;
    fn lookup(&self, s: Self::Source) -> Result<Self::Target, LookupError>;
}

Expand description

Means of changing one type into another in a manner dependent on the source type.

Associated Types

type Source

Type to lookup from.

type Target

Type to lookup into.

fn lookup(&self, s: Self::Source) -> Result<Self::Target, LookupError>

Attempt a lookup.

impl<T> Lookup for IdentityLookup<T>