Trait object_merge::CombineByKey

pub trait CombineByKey {
    type Elem;
    fn combine_by_key<F, K>(&mut self, template: &Self, get_key: F)
    where
        F: FnMut(&Self::Elem) -> K,
        K: Hash + Eq;
}

Combine and deduplicate items in a container that allows duplicates normally (such as Vec) while preserving the original element order.

Associated Types

type Elem

Required Methods

fn combine_by_key<F, K>(&mut self, template: &Self, get_key: F) where
    F: FnMut(&Self::Elem) -> K,
    K: Hash + Eq, 

Implementations on Foreign Types

impl<T> CombineByKey for Option<T> where     T: CombineByKey + Clone,

type Elem = T::Elem

fn combine_by_key<F, K>(&mut self, template: &Self, get_key: F) where     F: FnMut(&Self::Elem) -> K,     K: Hash + Eq,

impl<T> CombineByKey for Vec<T> where     T: Clone,

type Elem = T

fn combine_by_key<F, K>(&mut self, template: &Self, get_key: F) where     F: FnMut(&Self::Elem) -> K,     K: Hash + Eq,

Implementors