Module core_extensions::phantom

Available on crate feature phantom only.

PhantomData-related items.

Structs

AndPhantom

A pair of PhantomData<T> and T. useful for infering the type of the value from a PhantomData.

AndPhantomCov

A pair of PhantomData<fn() -> T> and T. useful for infering the type of the value from a PhantomData.

CovariantPhantomData

Contains PhantomData<fn() -> T>, required to return a PhantomData<fn() -> T> from the as_covariant_phantom const function.

Traits

AsPhantomData

For getting a PhantomData<Self> with a variety of lifetime variances.

Functions

as_covariant_phantom

Gets the PhantomData<fn() -> T> of the passed in T.

as_phantom

Gets the PhantomData of the passed in type.

Type Definitions

ContraVariantPhantom

Type alias for a contravariant PhantomData, without drop check.

CovariantPhantom

Type alias for a variant PhantomData, without drop check.

InvariantPhantom

Type alias for an invariant PhantomData.

InvariantRefPhantom

Type alias for an PhantomData with an invariant lifetime.

VariantDropPhantom

Type alias for a variant PhantomData with drop check.