Source file sigs.ml
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module type FUNCTOR = sig type +'a t end
type (+'a, 't) io
type ('l, 'r) either = L of 'l | R of 'r
type 't impl =
{ bind : 'a 'b. ('a, 't) io -> ('a -> ('b, 't) io) -> ('b, 't) io
; return : 'a. 'a -> ('a, 't) io }
type ('flow, 's) rdwr =
{ rd : 'flow -> bytes -> int -> int -> (int, 's) io
; wr : 'flow -> string -> int -> int -> (unit, 's) io }
module type X = sig
type +'a s
type t
external inj : 'a s -> ('a, t) io = "%identity"
external prj : ('a, t) io -> 'a s = "%identity"
end
module Common = struct
type t
external inj : 'a -> 'b = "%identity"
external prj : 'a -> 'b = "%identity"
end
module Make (T : FUNCTOR) = struct
type 'a s = 'a T.t
include Common
end