Trait proptest::arbitrary::functor::ArbitraryF1
source · pub trait ArbitraryF1<A: Debug>: Debug + Sized {
type Parameters: Default;
// Required method
fn lift1_with<AS>(base: AS, args: Self::Parameters) -> BoxedStrategy<Self>
where AS: Strategy<Value = A> + 'static;
// Provided method
fn lift1<AS>(base: AS) -> BoxedStrategy<Self>
where AS: Strategy<Value = A> + 'static { ... }
}Expand description
ArbitraryF1 lets you lift a Strategy to unary
type constructors such as Box, Vec, and Option.
The trait corresponds to
Haskell QuickCheck’s Arbitrary1 type class.
Required Associated Types§
sourcetype Parameters: Default
type Parameters: Default
The type of parameters that lift1_with accepts for
configuration of the lifted and generated Strategy. Parameters
must implement Default.
Required Methods§
sourcefn lift1_with<AS>(base: AS, args: Self::Parameters) -> BoxedStrategy<Self>where
AS: Strategy<Value = A> + 'static,
fn lift1_with<AS>(base: AS, args: Self::Parameters) -> BoxedStrategy<Self>where
AS: Strategy<Value = A> + 'static,
Provided Methods§
sourcefn lift1<AS>(base: AS) -> BoxedStrategy<Self>where
AS: Strategy<Value = A> + 'static,
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>.
Calling this for the type X is the equivalent of using
X::lift1_with(base, Default::default()).
This method is defined in the trait for optimization for the default if you want to do that. It is a logic error to not preserve the semantics when overriding.
Object Safety§
This trait is not object safe.