ocaml/toplevel/topmain.ml

91 lines
4.0 KiB
OCaml

(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 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 Clflags
let usage = "Usage: ocaml <options> <object-files> [script-file]\noptions are:"
let preload_objects = ref []
let prepare ppf =
Toploop.set_paths ();
try
let res =
List.for_all (Topdirs.load_file ppf) (List.rev !preload_objects) in
!Toploop.toplevel_startup_hook ();
res
with x ->
try Errors.report_error ppf x; false
with x ->
Format.fprintf ppf "Uncaught exception: %s\n" (Printexc.to_string x);
false
let file_argument name =
let ppf = Format.err_formatter in
if Filename.check_suffix name ".cmo" || Filename.check_suffix name ".cma"
then preload_objects := name :: !preload_objects
else
begin
let newargs = Array.sub Sys.argv !Arg.current
(Array.length Sys.argv - !Arg.current)
in
if prepare ppf && Toploop.run_script ppf name newargs
then exit 0
else exit 2
end
let main () =
Arg.parse [
"-I", Arg.String(fun dir ->
let dir = Misc.expand_directory Config.standard_library dir in
include_dirs := dir :: !include_dirs),
"<dir> Add <dir> to the list of include directories";
"-labels", Arg.Clear classic, " Labels commute (default)";
"-noassert", Arg.Set noassert, " Do not compile assertion checks";
"-nolabels", Arg.Set classic, " Ignore labels and do not commute";
"-nostdlib", Arg.Set no_std_include,
" do not add default directory to the list of include directories";
"-principal", Arg.Set principal, " Check principality of type inference";
"-rectypes", Arg.Set recursive_types, " Allow arbitrary recursive types";
"-unsafe", Arg.Set fast, " No bound checking on array and string access";
"-w", Arg.String (Warnings.parse_options false),
"<flags> Enable or disable warnings according to <flags>:\n\
\032 A/a enable/disable all warnings\n\
\032 C/c enable/disable suspicious comment\n\
\032 D/d enable/disable deprecated features\n\
\032 E/e enable/disable fragile match\n\
\032 F/f enable/disable partially applied function\n\
\032 L/l enable/disable labels omitted in application\n\
\032 M/m enable/disable overriden method\n\
\032 P/p enable/disable partial match\n\
\032 S/s enable/disable non-unit statement\n\
\032 U/u enable/disable unused match case\n\
\032 V/v enable/disable hidden instance variable\n\
\032 X/x enable/disable all other warnings\n\
\032 default setting is \"Ale\"\n\
\032 (all warnings but labels and fragile match enabled)";
"-warn-error" , Arg.String (Warnings.parse_options true),
"<flags> Enable or disable fatal warnings according to <flags>\n\
\032 (see option -w for the list of flags)\n\
\032 default setting is a (all warnings are non-fatal)";
"-dparsetree", Arg.Set dump_parsetree, " (undocumented)";
"-drawlambda", Arg.Set dump_rawlambda, " (undocumented)";
"-dlambda", Arg.Set dump_lambda, " (undocumented)";
"-dinstr", Arg.Set dump_instr, " (undocumented)";
] file_argument usage;
if not (prepare Format.err_formatter) then exit 2;
Toploop.loop Format.std_formatter