Trait keyed_set::KeyExtractor

pub trait KeyExtractor<'a, T> {
    type Key: Hash;

    fn extract(&self, from: &'a T) -> Self::Key;
}

Required Associated Types

type Key: Hash

Required Methods

fn extract(&self, from: &'a T) -> Self::Key

Implementations on Foreign Types

impl<'a, T: 'a + Hash> KeyExtractor<'a, T> for ()

type Key = &'a T

fn extract(&self, from: &'a T) -> Self::Key

Implementors

impl<'a, T: 'a, U: Hash, F: Fn(&'a T) -> U> KeyExtractor<'a, T> for F

type Key = U