ocaml/testsuite/tests/prim-revapply/revapply.ml

31 lines
1.2 KiB
OCaml

(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* Fabrice Le Fessant, INRIA Saclay *)
(* *)
(* Copyright 2012 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
external ( |> ) : 'a -> ('a -> 'b) -> 'b = "%revapply"
let f x = x + x
let g x = x * x
let h x = x + 1
let add x y = x + y
let _ =
List.iter (fun x ->
print_int x; print_newline ()
)
[
3 |> f; (* 6 *)
3 |> f |> g; (* 36 *)
3 |> g |> f; (* 18 *)
3 |> f |> g |> h; (* 37 *)
3 |> add 2 |> add 3 |> f |> g |> add 4; (* 260 *)
]