pub fn voter_index_fn_owned<T: MinerConfig>(
cache: BTreeMap<T::AccountId, usize>,
) -> impl Fn(&T::AccountId) -> Option<SolutionVoterIndexOf<T>>
Expand description
Create a function that returns the index of a voter in the snapshot.
Same as voter_index_fn
but the returned function owns all its necessary data; nothing is
borrowed.