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|
(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Daniel de Rauglaudre, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 2002 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. *)
(* *)
(***********************************************************************)
(* $Id$ *)
open Format
exception Error
(* Optionally preprocess a source file *)
let preprocess sourcefile =
match !Clflags.preprocessor with
None -> sourcefile
| Some pp ->
let tmpfile = Filename.temp_file "camlpp" "" in
let comm = Printf.sprintf "%s %s > %s"
pp (Filename.quote sourcefile) tmpfile
in
if Ccomp.command comm <> 0 then begin
Misc.remove_file tmpfile;
raise Error;
end;
tmpfile
let remove_preprocessed inputfile =
match !Clflags.preprocessor with
None -> ()
| Some _ -> Misc.remove_file inputfile
let remove_preprocessed_if_ast inputfile =
match !Clflags.preprocessor with
None -> ()
| Some _ ->
if inputfile <> !Location.input_name then Misc.remove_file inputfile
(* Parse a file or get a dumped syntax tree in it *)
exception Outdated_version
let input_intf_file ic magic =
if magic = Config.ast_intf_magic_number then
(input_value ic : Parsetree.signature)
else
raise Cmi_format.No_such_magic
let input_impl_file ic magic =
if magic = Config.ast_impl_magic_number then
(input_value ic : Parsetree.structure)
else
raise Cmi_format.No_such_magic
let file ppf inputfile parse_fun input_fun ast_magic =
let ic = open_in_bin inputfile in
let is_ast_file =
try
let buffer = String.create (String.length ast_magic) in
really_input ic buffer 0 (String.length ast_magic);
if String.sub buffer 0 9 = String.sub ast_magic 0 9 then
Some buffer
else None
with
| _ -> None
in
let ast =
try
match is_ast_file with
Some magic ->
if !Clflags.fast then
fprintf ppf "@[Warning: %s@]@."
"option -unsafe used with a preprocessor returning a syntax tree";
Location.input_name := input_value ic;
input_fun ic magic
| None ->
seek_in ic 0;
Location.input_name := inputfile;
let lexbuf = Lexing.from_channel ic in
Location.init lexbuf inputfile;
parse_fun lexbuf
with
| Cmi_format.No_such_magic -> (* replace Outdated_version *)
close_in ic;
Misc.fatal_error "Ocaml and preprocessor have incompatible versions"
| x -> close_in ic; raise x
in
close_in ic;
ast
|
