ocaml/tools/read_cmt.ml

98 lines
3.9 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 GNU Lesser General Public License version 2.1, with the *)
(* special exception on linking described in the file LICENSE. *)
(* *)
(**************************************************************************)
let gen_annot = ref false
let gen_ml = ref false
let print_info_arg = ref false
let target_filename = ref None
let arg_list = [
"-o", Arg.String (fun s -> target_filename := Some s),
" FILE (or -) : dump to file FILE (or stdout)";
"-annot", Arg.Set gen_annot, " : generate the corresponding .annot file";
"-src", Arg.Set gen_ml,
" : convert .cmt or .cmti back to source code (without comments)";
"-info", Arg.Set print_info_arg, " : print information on the file";
]
let arg_usage =
"read_cmt [OPTIONS] FILE.cmt : read FILE.cmt and print related information"
let dummy_crc = String.make 32 '-'
let print_info cmt =
let open Cmt_format in
Printf.printf "module name: %s\n" cmt.cmt_modname;
begin match cmt.cmt_annots with
Packed (_, list) ->
Printf.printf "pack: %s\n" (String.concat " " list)
| Implementation _ -> Printf.printf "kind: implementation\n"
| Interface _ -> Printf.printf "kind: interface\n"
| Partial_implementation _ ->
Printf.printf "kind: implementation with errors\n"
| Partial_interface _ -> Printf.printf "kind: interface with errors\n"
end;
Printf.printf "command: %s\n"
(String.concat " " (Array.to_list cmt.cmt_args));
begin match cmt.cmt_sourcefile with
None -> ()
| Some name ->
Printf.printf "sourcefile: %s\n" name;
end;
Printf.printf "build directory: %s\n" cmt.cmt_builddir;
List.iter (Printf.printf "load path: %s\n%!") cmt.cmt_loadpath;
begin
match cmt.cmt_source_digest with
None -> ()
| Some digest ->
Printf.printf "source digest: %s\n" (Digest.to_hex digest);
end;
begin
match cmt.cmt_interface_digest with
None -> ()
| Some digest ->
Printf.printf "interface digest: %s\n" (Digest.to_hex digest);
end;
List.iter (fun (name, crco) ->
let crc =
match crco with
None -> dummy_crc
| Some crc -> Digest.to_hex crc
in
Printf.printf "import: %s %s\n" name crc;
) (List.sort compare cmt.cmt_imports);
Printf.printf "%!";
()
let _ =
Clflags.annotations := true;
Arg.parse arg_list (fun filename ->
if
Filename.check_suffix filename ".cmt" ||
Filename.check_suffix filename ".cmti"
then begin
(* init_path(); *)
let cmt = Cmt_format.read_cmt filename in
if !gen_annot then Cmt2annot.gen_annot !target_filename filename cmt;
if !gen_ml then Cmt2annot.gen_ml !target_filename filename cmt;
if !print_info_arg || not (!gen_ml || !gen_annot) then print_info cmt;
end else begin
Printf.fprintf stderr
"Error: the file's extension must be .cmt or .cmti.\n%!";
Arg.usage arg_list arg_usage
end
) arg_usage