package algaeff

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Module Algaeff.StateSource

Effects for changing states.

  module S = Algaeff.State.Make (struct type state = int end)

  let forty_two = S.run ~init:100 @@ fun () ->
    print_int (S.get ()); (* this will print out 100 *)
    S.set 42;
    S.get ()

This should be equivalent to Unmonad applying to the standard state monad when continuations are one-shot. (The current implementation uses mutable references and this statement has not been formally proved.)

Sourcemodule type Param = sig ... end

Parameters of state effects.

Sourcemodule type S = sig ... end

Signatures of read effects.

Sourcemodule Make (P : Param) : S with type state = P.state

The implementation of state effects.