frege.run8

Interface Func.U<𝓐,𝓑>

All Superinterfaces:

java.util.concurrent.Callable<Func.U<𝓐,𝓑>>, frege.run.Kind.B<Func.U<?,?>,𝓐,𝓑>, frege.run.Kind.U<Func.U<𝓐,?>,𝓑>, Lazy<Func.U<𝓐,𝓑>>

Enclosing class:

Func

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface Func.U<𝓐,𝓑>
extends Lazy<Func.U<𝓐,𝓑>>, frege.run.Kind.U<Func.U<𝓐,?>,𝓑>, frege.run.Kind.B<Func.U<?,?>,𝓐,𝓑>

Method Summary

Modifier and Type	Method and Description
Lazy<𝓑>	apply(Lazy<𝓐> a)
default Func.U<𝓐,𝓑>	call() Compute the value if it is needed.
default boolean	isShared() Tell if this is shared.

Methods inherited from interface frege.run8.Lazy

asThunk

Method Detail

apply

Lazy<𝓑> apply(Lazy<𝓐> a)

call

default Func.U<𝓐,𝓑> call()

Description copied from interface: Lazy

Compute the value if it is needed.

Specified by:

call in interface java.util.concurrent.Callable<Func.U<𝓐,𝓑>>

Specified by:

call in interface Lazy<Func.U<𝓐,𝓑>>

See Also:

Callable.call()

isShared

default boolean isShared()

Description copied from interface: Lazy

Tell if this is shared.

Data and functions whose Lazy.call() method returns this as well as simple boxes that just hold a value ready to be supplied and Thunks are considered shared.

But a bare lambda expression is assumed to be in need of sharing. For example:

() -> 42

Specified by:

isShared in interface Lazy<Func.U<𝓐,𝓑>>

Returns:

false, if sharing this would make any sense, otherwise true