Struct IdentityKind 

pub struct IdentityKind;

The Kind marker for the Identity monad.

This unit struct is used to implement the Kind traits (Functor, Apply, Applicative, Monad, Bind) for Identity.

Trait Implementations

impl<T: 'static> Applicative<T> for IdentityKind

fn pure(value: T) -> Identity<T>

Lifts a value T into Identity<T>.

impl<A, B> Apply<A, B> for IdentityKind

where A: 'static, B: 'static,

fn apply( value_container: Identity<A>, function_container: Identity<RcFn<A, B>>, ) -> Identity<B>

Applies a wrapped function Identity<RcFn<A, B>> to a wrapped value Identity<A>.

impl<A, B> Bind<A, B> for IdentityKind

where A: 'static, B: 'static,

fn bind(input: Identity<A>, func: impl FnMut(A) -> Identity<B>) -> Identity<B>

Applies a function A -> Identity<B> to the value inside Identity<A>. Effectively, it unwraps the value, applies the function, and returns the new Identity<B>.

impl Clone for IdentityKind

fn clone(&self) -> IdentityKind

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for IdentityKind

impl Debug for IdentityKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for IdentityKind

fn default() -> IdentityKind

Returns the “default value” for a type.

impl Eq for IdentityKind

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

fn map(input: Identity<A>, func: impl FnMut(A) -> B) -> Identity<B>

Applies a function to the value inside Identity. Identity(a) becomes Identity(func(a)).

impl Hash for IdentityKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Kind for IdentityKind

type Of<T> = Identity<T>

The concrete type resulting from applying this Kind (type constructor) to a type argument Arg.

impl<A: 'static> Monad<A> for IdentityKind

fn join(mma: Identity<Identity<A>>) -> Identity<A>

Flattens Identity<Identity<A>> to Identity<A>. This simply unwraps the outer Identity.

impl Ord for IdentityKind

fn cmp(&self, other: &IdentityKind) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for IdentityKind

fn eq(&self, other: &IdentityKind) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for IdentityKind

fn partial_cmp(&self, other: &IdentityKind) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for IdentityKind