viewcvs.cgi/driver/cduce.ml

open Location

let input = Stream.of_channel stdin
let ppf = Format.std_formatter
let prog () = 
  try Parser.prog input
  with
    | Stdpp.Exc_located (loc, e) -> 
        raise (Location (loc, e))

let rec print_exn ppf = function
  | Location ((i,j), exn) ->
      Format.fprintf ppf "Error at chars %i-%i@\n" i j;
      print_exn ppf exn
  | Typer.Constraint (s,t,msg) ->
      Format.fprintf ppf "%s@\n" msg;
      Format.fprintf ppf "%a is not a subtype of %a@\n" 
        Types.Print.print_descr s 
        Types.Print.print_descr t;
      Format.fprintf ppf "as shown by %a@\n" 
        Types.Print.print_sample (Types.Sample.get (Types.diff s t))
  | exn ->
      Format.fprintf ppf "%s@\n" (Printexc.to_string exn)

let phrase ph =
  match ph.descr with
    | Ast.EvalStatement e ->
        let (fv,e) = Typer.expr e in
        let t = Typer.compute_type Typer.Env.empty e in
        Format.fprintf ppf "%a@\n" Types.Print.print_descr t;
    | Ast.TypeDecl _ -> ()
    | _ -> assert false

let () = 
  try 
    let p = prog () in
    let type_decls = 
      List.fold_left
        (fun accu ph -> match ph.descr with
           | Ast.TypeDecl (x,t) -> (x,t) :: accu
           | _ -> accu
        ) [] p in
    Typer.register_global_types type_decls;
    List.iter phrase p
  with exn -> print_exn ppf exn
        
1	abate	10	open Location
2
3			let input = Stream.of_channel stdin
4			let ppf = Format.std_formatter
5			let prog () =
6			try Parser.prog input
7			with
8			\| Stdpp.Exc_located (loc, e) ->
9			raise (Location (loc, e))
10
11			let rec print_exn ppf = function
12			\| Location ((i,j), exn) ->
13			Format.fprintf ppf "Error at chars %i-%i@\n" i j;
14			print_exn ppf exn
15			\| Typer.Constraint (s,t,msg) ->
16			Format.fprintf ppf "%s@\n" msg;
17			Format.fprintf ppf "%a is not a subtype of %a@\n"
18			Types.Print.print_descr s
19			Types.Print.print_descr t;
20			Format.fprintf ppf "as shown by %a@\n"
21			Types.Print.print_sample (Types.Sample.get (Types.diff s t))
22			\| exn ->
23			Format.fprintf ppf "%s@\n" (Printexc.to_string exn)
24
25			let phrase ph =
26			match ph.descr with
27			\| Ast.EvalStatement e ->
28			let (fv,e) = Typer.expr e in
29			let t = Typer.compute_type Typer.Env.empty e in
30			Format.fprintf ppf "%a@\n" Types.Print.print_descr t;
31	abate	13	\| Ast.TypeDecl _ -> ()
32	abate	10	\| _ -> assert false
33
34			let () =
35	abate	13	try
36			let p = prog () in
37			let type_decls =
38			List.fold_left
39			(fun accu ph -> match ph.descr with
40			\| Ast.TypeDecl (x,t) -> (x,t) :: accu
41			\| _ -> accu
42			) [] p in
43			Typer.register_global_types type_decls;
44			List.iter phrase p
45	abate	10	with exn -> print_exn ppf exn
46