ocaml/camlp4/Camlp4Parsers/Camlp4AstLoader.ml

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2.0 KiB
OCaml

(****************************************************************************)
(* *)
(* OCaml *)
(* *)
(* INRIA Rocquencourt *)
(* *)
(* Copyright 2006 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed under *)
(* the terms of the GNU Library General Public License, with the special *)
(* exception on linking described in LICENSE at the top of the OCaml *)
(* source tree. *)
(* *)
(****************************************************************************)
(* Authors:
* - Daniel de Rauglaudre: initial version
* - Nicolas Pouillard: refactoring
*)
open Camlp4; (* -*- camlp4r -*- *)
module Id = struct
value name = "Camlp4AstLoader";
value version = Sys.ocaml_version;
end;
module Make (Ast : Camlp4.Sig.Ast) = struct
module Ast = Ast;
value parse ast_magic ?directive_handler:(_) _loc strm =
let str =
let buf = Buffer.create 2047 in
let () = Stream.iter (Buffer.add_char buf) strm
in Buffer.contents buf in
let magic_len = String.length ast_magic in
let buffer = String.create magic_len in
do {
String.blit str 0 buffer 0 magic_len;
if buffer = ast_magic then ()
else failwith (Format.sprintf "Bad magic: %S vs %S" buffer ast_magic);
Marshal.from_string str magic_len;
};
open Camlp4.PreCast;
value parse_implem = parse Camlp4_config.camlp4_ast_impl_magic_number;
value parse_interf = parse Camlp4_config.camlp4_ast_intf_magic_number;
end;
let module M = Camlp4.Register.Parser Id Make in ();