Trait IsInitNone 

pub trait IsInitNone: OptionalBound + Sealed { }

Marker trait that is implemented for OptionalBound types that are null only initially: once the optional becomes non-null it remains non-null (or it is Bounded).

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl IsInitNone for InitNone

impl<B: IsBounded> IsInitNone for B