Struct Identity 

pub struct Identity<A>(pub A);

Wraps a value.

The Identity type represents a trivial wrapper around a value. It is the simplest possible container. It is often used as a base case for higher-kinded types or when a container is required but no additional effect is needed.

Higher-Kinded Type Representation

The higher-kinded representation of this type constructor is IdentityBrand, which is fully polymorphic over the wrapped value type.

Serialization

This type supports serialization and deserialization via serde when the serde feature is enabled.

Type Parameters

• A: The type of the wrapped value.

Fields

• 0: The wrapped value.

Examples

use fp_library::types::*;

let x = Identity(5);
assert_eq!(x.0, 5);

Tuple Fields

0: A

Trait Implementations

impl<A: Clone> Clone for Identity<A>

fn clone(&self) -> Identity<A>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<A: Debug> Debug for Identity<A>

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

Formats the value using the given formatter.

impl<A: Default> Default for Identity<A>

fn default() -> Identity<A>

Returns the “default value” for a type.

impl<'de, A> Deserialize<'de> for Identity<A>

where A: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<A: Hash> Hash for Identity<A>

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<A: Ord> Ord for Identity<A>

fn cmp(&self, other: &Identity<A>) -> 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<A: PartialEq> PartialEq for Identity<A>

fn eq(&self, other: &Identity<A>) -> 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<A: PartialOrd> PartialOrd for Identity<A>

fn partial_cmp(&self, other: &Identity<A>) -> 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<A> Serialize for Identity<A>

where A: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<A: Copy> Copy for Identity<A>

impl<A: Eq> Eq for Identity<A>

impl<A> StructuralPartialEq for Identity<A>