Module Std_kernel.Monad

module Monad: Monad

module type Basic = sig .. end

module type Infix = sig .. end

module type S = sig .. end

module Make: functor (M : Basic) -> sig .. end

module type Basic2 = sig .. end

Multi parameter monad.

module type Infix2 = sig .. end

Same as Infix, except the monad type has two arguments.

module type S2 = sig .. end

The same as S except the monad type has two arguments.

module Check_S2_refines_S: functor (X : S) -> sig .. end

module Make2: functor (M : Basic2) -> sig .. end

t >>= f returns a computation that sequences the computations represented by two monad elements. The resulting computation first does t to yield a value v, and then runs the computation returned by f v.

t >>| f is t >>= (fun a -> return (f a)).

A monad is an abstraction of the concept of sequencing of computations. A value of type 'a monad represents a computation that returns a value of type 'a.

bind t f = t >>= f

return v returns the (trivial) computation that returns v.

map t ~f is t >>| f.

join t is t >>= (fun t' -> t').

ignore t = map t ~f:(fun _ -> ()).

Multi parameter monad. The second parameter get unified across all the computation. This is used to encode monads working on a multi parameter data structure like (('a,'b result)).

Same as Infix, except the monad type has two arguments. The second is always just passed through.

The same as S except the monad type has two arguments. The second is always just passed through.