Trait Pure

pub trait Pure<A> {
    // Required method
    fn pure(value: A) -> Self;
}

Pure lets you construct a value of type F<A> from a single value of A.

For instance:

• Option::pure(5) returns Some(5).
• Result::pure(5) returns Ok(5).
• Vec::pure(5) returns vec![5].

Required Methods

fn pure(value: A) -> Self

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> Pure<A> for Option<A>

fn pure(value: A) -> Self

impl<A> Pure<A> for Vec<A>

fn pure(value: A) -> Self

impl<A, E> Pure<A> for Result<A, E>

fn pure(value: A) -> Self

Implementors

impl<'a, A> Pure<A> for Effect<'a, A>

where A: 'a,

impl<'a, A: 'a, E> Pure<A> for IO<'a, A, E>