Created
February 15, 2012 20:53
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Monad and Functor definitions
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| trait Functor[M[_]] { | |
| def map[T,P >: T, U](source: M[T])(f: P => U): M[U]; | |
| } | |
| trait Monad[M[_]] { | |
| def apply[T](data: T): M[T] | |
| def flatten[T](m: M[M[T]]): M[T] | |
| final def flatMap [T, P>: T, U](source: M[T])(t: P => M[U])(implicit f: Functor[M]): M[U] = { | |
| flatten(f.map(source)(t)) | |
| } | |
| } |
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