Trait spl_pod::option::Nullable

pub trait Nullable:
    PartialEq
    + Pod
    + Sized {
    const NONE: Self;

    // Provided methods
    fn is_none(&self) -> bool { ... }
    fn is_some(&self) -> bool { ... }
}

Trait for types that can be None.

This trait is used to indicate that a type can be None according to a specific value.

Required Associated Constants

const NONE: Self

Value that represents None for the type.

Provided Methods

fn is_none(&self) -> bool

Indicates whether the value is None or not.

fn is_some(&self) -> bool

Indicates whether the value is Some`` value of type T`` or not.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl Nullable for Pubkey

Implementation of Nullable for Pubkey.

const NONE: Self = _

Implementors