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|
(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* 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 file ppf inputfile parse_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 buffer = ast_magic then true
else if String.sub buffer 0 9 = String.sub ast_magic 0 9 then
raise Outdated_version
else false
with
Outdated_version ->
Misc.fatal_error "Ocaml and preprocessor have incompatible versions"
| _ -> false
in
let ast =
try
if is_ast_file then begin
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_value ic
end else begin
seek_in ic 0;
Location.input_name := inputfile;
let lexbuf = Lexing.from_channel ic in
Location.init lexbuf inputfile;
parse_fun lexbuf
end
with x -> close_in ic; raise x
in
close_in ic;
ast
|
