Trait Reducer 

pub trait Reducer<A>
where
    A: Clone + Send + 'static,
    Self: Sized,
{
    // Required method
    fn reduce(&mut self, action: A) -> Vec<A>;
}

State reducer.

Abstraction Goals

• Separation of concerns: This is only intended to apply actions ot state.
• Make state changes trivialy testable.
• Deterministic state changes.
• Deterministic observe changes of interest (retuned actions).

Required Methods

fn reduce(&mut self, action: A) -> Vec<A>

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