Trait Unit 

pub unsafe trait Unit
where
    Self: Default + Sized,
{
    type Item: ArrayType<Self> + Copy + From<Self> + Send + Sync + 'static;
}

A marker trait for unit types.

It is derived automatically for types without fields that have NullArray as ArrayType, and used as a trait bound on the methods that are used to support deriving Array for these types.

Safety

This trait is unsafe because the compiler can’t verify that it only gets implemented by unit types.

Required Associated Types

type Item: ArrayType<Self> + Copy + From<Self> + Send + Sync + 'static

This is the item that is returned

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.

Implementations on Foreign Types

impl Unit for ()

type Item = ()

Implementors