Trait Nullability 

pub trait Nullability: Sealed {
    type Item<T>;
    type Collection<T, Buffer: BufferType>;

    const NULLABLE: bool;
}

Nullability trait for nullable and non-nullable type constructors

Required Associated Constants

const NULLABLE: bool

true iff this is Nullable.

Required Associated Types

type Item<T>

Constructor for nullable and non-nullable items.

Generic over an item T.

type Collection<T, Buffer: BufferType>

Constructor for nullable and non-nullable collections.

Generic over a collection T and a BufferType.

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.

Implementors

impl Nullability for NonNullable

const NULLABLE: bool = false

type Item<T> = T

type Collection<T, Buffer: BufferType> = T

impl Nullability for Nullable

const NULLABLE: bool = true

type Item<T> = Option<T>

type Collection<T, Buffer: BufferType> = Validity<T, Buffer>