sealed abstract class ContT[M[_], A, +B] extends Serializable
This is a continuation transformer based on the ContT in the Haskell package Control.Monad.Cont
This is reasonably straight-forward except that to make a tailRecM implementation we leverage the Defer type class to obtain stack-safety.
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- ContT.scala
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- final def eval(implicit M: Applicative[M], D: Defer[M], ev: <:<[B, A]): M[A]
- final def flatMap[C](fn: (B) ⇒ ContT[M, A, C])(implicit M: Defer[M]): ContT[M, A, C]
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isInstanceOf[T0]: Boolean
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- final def map[C](fn: (B) ⇒ C)(implicit M: Defer[M]): ContT[M, A, C]
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final
def
mapCont(fn: (M[A]) ⇒ M[A]): ContT[M, A, B]
c.mapCont(f).run(g) == f(c.run(g))
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def
withCont[C](fn: ((C) ⇒ M[A]) ⇒ (B) ⇒ M[A]): ContT[M, A, C]
cont.withCont(f).run(cb) == cont.run(f(cb))