Trait Functor

pub trait Functor<A, B>: HKT<A, B> {
    // Required method
    fn fmap<F: FnOnce(A) -> B>(self, f: F) -> <Self as HKT<A, B>>::Target;
}

Required Methods

fn fmap<F: FnOnce(A) -> B>(self, f: F) -> <Self as HKT<A, B>>::Target

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.

Implementations on Foreign Types

impl<A, B> Functor<A, B> for Option<A>

fn fmap<F: FnOnce(A) -> B>(self, f: F) -> <Self as HKT<A, B>>::Target

impl<A, B, E> Functor<A, B> for Result<A, E>

fn fmap<F: FnOnce(A) -> B>(self, f: F) -> <Self as HKT<A, B>>::Target

Implementors