Trait object_merge::MergeCombineByKey

pub trait MergeCombineByKey {
    type Elem;

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

Merge and combine the elements in two containers using a custom function for getting the key that should be used for each element. This allows merging and combining Vec.

Required Associated Types

type Elem

Required Methods

fn merge_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> MergeCombineByKey for Option<T>where
    T: MergeCombineByKey + Clone,

type Elem = <T as MergeCombineByKey>::Elem

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

impl<T> MergeCombineByKey for Vec<T>where
    T: Merge + Clone,

type Elem = T

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

Implementors