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(** Direct implementation of the [Intf_lang] signatures. *)
module Empty : Intf_lang.Empty with type 'a m = 'a = struct
type 'a m = 'a
end
module Sequencing : Intf_lang.Sequencing with type 'a m = 'a = struct
include Empty
let seq x y = y x [@@inline]
let ( let* ) m f = f m [@@inline]
let unit = ()
end
module Lambda : Intf_lang.Lambda with type 'a m = 'a = struct
include Empty
let lam f = f [@@inline]
let app f x = f x [@@inline]
end
module Product : Intf_lang.Product with type 'a m = 'a = struct
include Empty
let prod x y = (x, y) [@@inline]
let fst (x, _) = x [@@inline]
let snd (_, y) = y [@@inline]
end
module Bool : Intf_lang.Bool with type 'a m = 'a = struct
include Empty
let true_ = true
let false_ = false
let ( || ) = ( || )
let ( && ) = ( && )
let dispatch cond k = k cond [@@inline]
end
module Int = struct
include Std.Int
include Empty
let ( = ) (x : int) (y : int) = x = y
let compare (x : int) (y : int) = if x < y then -1 else if x > y then 1 else 0
let ( <> ) (x : int) (y : int) = x <> y
let ( < ) (x : int) (y : int) = x < y
let ( <= ) (x : int) (y : int) = x <= y
let ( > ) (x : int) (y : int) = x > y
let ( >= ) (x : int) (y : int) = x >= y
let of_int x = x
end
module Float = struct
include Std.Float
include Empty
let ( = ) = Float.equal
let ( <> ) (x : float) (y : float) = x <> y
let ( < ) (x : float) (y : float) = x < y
let ( <= ) (x : float) (y : float) = x <= y
let ( > ) (x : float) (y : float) = x > y
let ( >= ) (x : float) (y : float) = x >= y
end
module Complex = struct
include Std.Complex
include Empty
let of_int (x : int) = Complex.{ re = float_of_int x; im = 0.0 }
end
module Rational = struct
include Std.Q
include Empty
end
module String = struct
include Std.String
include Empty
end
module Exn = struct
include Empty
let const exn = exn
let raise_ exn = raise exn
end
module Loop = struct
include Empty
type index = int
let for_ ~start ~stop f =
for i = start to stop do
f i
done
let while_ ~cond f =
while cond () do
f ()
done
end
module Make_enum (X : sig
type t
val enum : t -> int
val all : t array
end) =
struct
include Empty
type t = X.t
let enum = X.enum
let all = X.all
let const x = x
let dispatch x f = f x
end
module Make_storage (X : sig
type t
end) =
struct
include Empty
type t = X.t ref
type elt = X.t
let create x = ref x
let set x e = x := e
let get x = !x
end
module Make_array (X : sig
type t
end) =
struct
type 'a m = 'a
type t = X.t array
type elt = X.t
type index = int
let make = Array.make
let copy = Array.copy
let sub = Array.sub
let length = Array.length
let blit = Array.blit
let get = Array.get
let unsafe_get = Array.unsafe_get
let set = Array.set
let unsafe_set = Array.unsafe_set
end
module Float_storage = struct
include Empty
type t = float ref
type elt = float
let create (x : float) : t = ref x
let set x (e : float) = x := e
let get (x : t) = !x
end
module Make_const (X : sig
type t
end) =
struct
include Empty
type t = X.t
let const x = x
end
module Codegen = Impl_monad.Codegen_identity (Empty) (Sequencing)