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;
    | _ -> assert false

let () = 
  try List.iter phrase (prog ())
  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			\| _ -> assert false
32
33			let () =
34			try List.iter phrase (prog ())
35			with exn -> print_exn ppf exn
36