138 lines
4.4 KiB
OCaml
138 lines
4.4 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Objective Caml *)
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(* *)
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(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1996 Institut National de Recherche en Informatique et *)
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(* Automatique. Distributed only by permission. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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(* The batch compiler *)
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open Misc
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open Config
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open Format
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open Typedtree
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(* Initialize the search path.
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The current directory is always searched first,
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then the directories specified with the -I option (in command-line order),
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then the standard library directory. *)
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let init_path () =
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let dirs =
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if !Clflags.thread_safe then
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Filename.concat Config.standard_library "threads" :: !Clflags.include_dirs
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else
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!Clflags.include_dirs in
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load_path := "" :: List.rev (Config.standard_library :: dirs);
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Env.reset_cache()
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(* Return the initial environment in which compilation proceeds. *)
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let initial_env () =
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init_path();
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try
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if !Clflags.nopervasives
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then Env.initial
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else Env.open_pers_signature "Pervasives" Env.initial
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with Not_found ->
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fatal_error "cannot open Pervasives.cmi"
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(* Optionally preprocess a source file *)
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let preprocess sourcefile tmpfile =
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match !Clflags.preprocessor with
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None -> sourcefile
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| Some pp ->
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let comm = pp ^ " " ^ sourcefile ^ " > " ^ tmpfile in
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if Ccomp.command comm <> 0 then begin
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Printf.eprintf "Preprocessing error\n";
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flush stderr;
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exit 2
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end;
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tmpfile
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let remove_preprocessed inputfile =
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match !Clflags.preprocessor with
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None -> ()
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| Some _ -> remove_file inputfile
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(* Parse a file or get a dumped syntax tree in it *)
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exception Outdated_version
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let parse_file inputfile parse_fun ast_magic =
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let ic = open_in_bin inputfile in
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let is_ast_file =
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try
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let buffer = String.create (String.length ast_magic) in
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really_input ic buffer 0 (String.length ast_magic);
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if buffer = ast_magic then true
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else if String.sub buffer 0 9 = String.sub ast_magic 0 9 then
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raise Outdated_version
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else false
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with
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Outdated_version ->
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fatal_error "Ocaml and preprocessor have incompatible versions"
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| _ -> false
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in
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let ast =
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try
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if is_ast_file then begin
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Location.input_name := input_value ic;
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input_value ic
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end else begin
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seek_in ic 0;
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Location.input_name := inputfile;
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parse_fun (Lexing.from_channel ic)
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end
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with x -> close_in ic; raise x
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in
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close_in ic;
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ast
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(* Compile a .mli file *)
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let interface sourcefile =
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let prefixname = Filename.chop_extension sourcefile in
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let modulename = String.capitalize(Filename.basename prefixname) in
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let inputfile = preprocess sourcefile (prefixname ^ ".ppi") in
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let ast = parse_file inputfile Parse.interface ast_intf_magic_number in
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let sg = Typemod.transl_signature (initial_env()) ast in
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if !Clflags.print_types then (Printtyp.signature sg; print_newline());
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Env.save_signature sg modulename (prefixname ^ ".cmi");
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remove_preprocessed inputfile
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(* Compile a .ml file *)
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let print_if flag printer arg =
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if !flag then begin printer arg; print_newline() end;
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arg
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let (++) x f = f x
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let (+++) (x, y) f = (x, f y)
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let implementation sourcefile =
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let prefixname = Filename.chop_extension sourcefile in
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let modulename = String.capitalize(Filename.basename prefixname) in
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let inputfile = preprocess sourcefile (prefixname ^ ".ppo") in
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let env = initial_env() in
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Compilenv.reset modulename;
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parse_file inputfile Parse.implementation ast_impl_magic_number
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++ Typemod.type_implementation sourcefile prefixname modulename env
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++ Translmod.transl_store_implementation modulename
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+++ print_if Clflags.dump_rawlambda Printlambda.lambda
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+++ Simplif.simplify_lambda
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+++ print_if Clflags.dump_lambda Printlambda.lambda
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++ Asmgen.compile_implementation prefixname;
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Compilenv.save_unit_info (prefixname ^ ".cmx");
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remove_preprocessed inputfile
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let c_file name =
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if Ccomp.compile_file name <> 0 then exit 2
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