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trait Memoizable[F[_]] extends Serializable with Type[F]

A type-class for F[A] monads that are suspendable and whose evaluation can be memoized, along with a guarantee that the captured side-effects only happen once.

The memoize operation takes an F[_] instance and returns a new F that guarantees that its evaluation and all related side-effects only happen once, with the results to be reused on subsequent evaluations.

Note that the memoize operation can be a no-op. For example Scala's Future doesn't need to do anything special as memoization happens by default and idempotency is guaranteed.

Self Type
Instance[F]
Source
Memoizable.scala
Linear Supertypes
Type[F], Type[F], Type[F], Type[F], Type[F], Serializable, Serializable, AnyRef, Any
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  1. Memoizable
  2. Type
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  5. Type
  6. Type
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  8. Serializable
  9. AnyRef
  10. Any
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Visibility
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Abstract Value Members

  1. implicit abstract def applicative: Applicative[F]
    Definition Classes
    Type
  2. implicit abstract def functor: Functor[F]
    Definition Classes
    Type
  3. abstract def memoize[A](fa: F[A]): F[A]
  4. implicit abstract def monad: Monad[F]
    Definition Classes
    Type
  5. implicit abstract def monadEval: MonadEval[F]
    Definition Classes
    Type
  6. implicit abstract def suspendable: Suspendable[F]
    Definition Classes
    Type

Concrete Value Members

  1. def evalOnce[A](a: ⇒ A): F[A]