Struct serde_closure::FnOnce

pub struct FnOnce<E, F> { /* fields omitted */ }

A struct representing a serializable closure, created by the FnOnce macro. Implements std::ops::FnOnce, serde's Serialize and Deserialize, and various convenience traits.

It is generic over E: a tuple of the environment variables passed to the FnOnce macro; and F: the signature of closure as coerced to a function pointer.

See the readme for examples.

Trait Implementations

impl<E, T> Copy for FnOnce<E, T> where
    E: Copy, 

impl<E, T> Ord for FnOnce<E, T> where
    E: Ord, 

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<E, T> Clone for FnOnce<E, T> where
    E: Clone, 

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<E, T> PartialEq<FnOnce<E, T>> for FnOnce<E, T> where
    E: PartialEq, 

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<E, T, F, O> FnOnce<T> for FnOnce<E, F> where
    F: FnOnce(E, T) -> O, 

type Output = O

The returned type after the call operator is used.

extern "rust-call" fn call_once(self, args: T) -> Self::Output

🔬 This is a nightly-only experimental API. (fn_traits)

Performs the call operation.

impl<E, T> Eq for FnOnce<E, T> where
    E: Eq, 

impl<E, T> PartialOrd<FnOnce<E, T>> for FnOnce<E, T> where
    E: PartialOrd, 

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

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

#[must_use] fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use] fn le(&self, other: &Rhs) -> bool

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

#[must_use] fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use] fn ge(&self, other: &Rhs) -> bool

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

impl<E, T> Debug for FnOnce<E, T> where
    E: Debug, 

fn fmt(&self, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<E, T> Hash for FnOnce<E, T> where
    E: Hash, 

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, 

Feeds a slice of this type into the given [Hasher].

impl<E, F> Serialize for FnOnce<E, F> where
    E: Serialize,
    F: 'static, 

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

Serialize this value into the given Serde serializer.

impl<'de, E, F> Deserialize<'de> for FnOnce<E, F> where
    E: Deserialize<'de>,
    F: 'static, 

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.