Trait Mergeable 

pub trait Mergeable {
    type MergeStrategy;

    // Required method
    fn merge(strategy: &Self::MergeStrategy, a: Self, b: Self) -> Self;
}

Allows merging two values according to a strategy.

Required Associated Types

type MergeStrategy

Required Methods

fn merge(strategy: &Self::MergeStrategy, a: Self, b: Self) -> Self

Merge two values. a is the “accumulated/existing” value, b is the “incoming” one.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Mergeable for Subject

type MergeStrategy = SubjectMergeStrategy