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cl_camldefs.ml
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cl_camldefs.ml
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(*
* Copyright (c) 2015 Stefan Krah. All rights reserved.
*
* This file is distributed under the terms of the Q Public License
* version 1.0.
*)
(* Functions in this file are used for running the closure-converted output
through the OCaml type checker (See: ./compile_cconv.sh). *)
exception Value_error
let undef = Obj.magic 0
let nil = Obj.magic 0
let ( ** ) init n =
match init with
[x] -> Array.make n x
| _ -> raise (Invalid_argument "**")
let print_string =
object
val env = ();
method apply = fun s -> Printf.printf "%s" s
end
let print_i64 =
object
val env = ()
method apply = fun x -> Printf.printf "%d\n" x
end
let concat =
object
val env = ()
method apply = fun (a, b) -> a ^ b
end
let ref =
object
val env = ()
method apply = fun x -> { contents = x }
end
let ( ! ) =
object
val env = ()
method apply = fun x -> x.contents
end
let ( := ) =
object
val env = ()
method apply = fun (x, y) -> x.contents <- y
end
let bang = ( ! )
let isdigit =
object
val env = ()
method apply = function
"0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" -> true
| _ -> false
end
let ord =
object
val env = ()
method apply s =
if s = "" then -1
else if String.length s != 1 then raise Value_error
else Char.code s.[0]
end
let getchar =
object
val env = ()
method apply () =
try
let c = input_char stdin in
let b = Bytes.create 1 in
Bytes.set b 0 c;
Bytes.to_string b
with End_of_file -> ""
end
let chr =
object
val env = ()
method apply d =
let c = Char.chr d in
let b = Bytes.create 1 in
Bytes.set b 0 c;
Bytes.to_string b
end