Trait Comonad

pub trait Comonad<A, B>: Extend<A, B> + Extract<A> { }

A Comonad is the opposite of a Monad, and also anything which implements Extend and Extract.

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<W, A, B> Comonad<A, B> for W

where W: Extend<A, B> + Extract<A>,