package rescriptdep

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A dependency analyzer for ReScript modules

Install 

dune-project
 Dependency

github.com Readme Changelog MIT License Edit opam file Versions (3)

Authors

  1. W
    Woonki Moon

Maintainers

  1. W
    Woonki Moon

Sources

0.2.0.tar.gz
md5=ee82c85fb01239fb6b617b23521c1441
sha512=726c28f71ccb0ded5c3e15079ab3c95f635aa24f7c2ae6f8557c3677a11f42f7c4b8f406517ac3694c1bf1b06927eacd930938d01adb7d20c3b36135b0b395b7

doc/src/rescriptdep.vendor/cmi_format.ml.html

Source file cmi_format.ml

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(**************************************************************************)
(*                                                                        *)
(*                                 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 GNU Lesser General Public License version 2.1, with the          *)
(*   special exception on linking described in the file LICENSE.          *)
(*                                                                        *)
(**************************************************************************)

type pers_flags = Deprecated of string

type error =
  | Not_an_interface of string
  | Wrong_version_interface of string * string
  | Corrupted_interface of string

exception Error of error

type cmi_infos = {
  cmi_name : string;
  cmi_sign : Types.signature_item list;
  cmi_crcs : (string * Digest.t option) list;
  cmi_flags : pers_flags list;
}

let input_cmi ic =
  let name, sign = input_value ic in
  let crcs = input_value ic in
  let flags = input_value ic in
  { cmi_name = name; cmi_sign = sign; cmi_crcs = crcs; cmi_flags = flags }

let read_cmi filename =
  let ic = open_in_bin filename in
  try
    let buffer =
      really_input_string ic (String.length Config.cmi_magic_number)
    in
    if buffer <> Config.cmi_magic_number then (
      close_in ic;
      let pre_len = String.length Config.cmi_magic_number - 3 in
      if
        String.sub buffer 0 pre_len
        = String.sub Config.cmi_magic_number 0 pre_len
      then
        let msg =
          if buffer < Config.cmi_magic_number then "an older" else "a newer"
        in
        raise (Error (Wrong_version_interface (filename, msg)))
      else raise (Error (Not_an_interface filename)));
    let cmi = input_cmi ic in
    close_in ic;
    cmi
  with
  | End_of_file | Failure _ ->
      close_in ic;
      raise (Error (Corrupted_interface filename))
  | Error e ->
      close_in ic;
      raise (Error e)