Struct Discriminant

pub struct Discriminant<T>(/* private fields */);

Opaque type representing the discriminant of an enum.

See the discriminant function in this module for more information.

Trait Implementations

impl<A> Arbitrary for Discriminant<A>

where A: Arbitrary,

type Parameters = <A as Arbitrary>::Parameters

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = Map<<A as Arbitrary>::Strategy, fn(_: A) -> Discriminant<A>>

The type of Strategy used to generate values of type Self.

fn arbitrary_with( args: <Discriminant<A> as Arbitrary>::Parameters, ) -> <Discriminant<A> as Arbitrary>::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl<A> ArbitraryF1<A> for Discriminant<A>

where A: Debug + 'static,

type Parameters = ()

The type of parameters that lift1_with accepts for configuration of the lifted and generated Strategy. Parameters must implement Default.

fn lift1_with<S>( base: S, _args: <Discriminant<A> as ArbitraryF1<A>>::Parameters, ) -> BoxedStrategy<Discriminant<A>>

where S: Strategy<Value = A> + 'static,

Lifts a given Strategy to a new Strategy for the (presumably) bigger type. This is useful for lifting a Strategy for SomeType to a container such as Vec of SomeType. The composite strategy is passed the arguments given in args.

fn lift1<AS>(base: AS) -> BoxedStrategy<Self>

where AS: Strategy<Value = A> + 'static,

Lifts a given Strategy to a new Strategy for the (presumably) bigger type. This is useful for lifting a Strategy for SomeType to a container such as Vec<SomeType>.

impl<T> Clone for Discriminant<T>

fn clone(&self) -> Discriminant<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Debug for Discriminant<T>

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<T> Hash for Discriminant<T>

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T> PartialEq for Discriminant<T>

fn eq(&self, rhs: &Discriminant<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> Copy for Discriminant<T>

impl<T> Eq for Discriminant<T>