viewcvs.cgi/driver/cduce.ml

open Location
open Ident

ifdef ML_INTERFACE then module ML = Ml_ocaml;;

exception InvalidInputFilename of string
exception InvalidObjectFilename of string

(* if set to false toplevel exception aren't cought. 
 * Useful for debugging with OCAMLRUNPARAM="b" *)
let catch_exceptions = true

(* retuns a filename without the suffix suff if any *) 
let prefix filename suff =
  if Filename.check_suffix filename suff then
    try
      Filename.chop_extension filename
    with Invalid_argument filename -> failwith "Not a point in the suffix?"
  else filename

let toplevel = ref false
let verbose = ref false

let typing_env = State.ref "Cduce.typing_env" Builtin.env
let compile_env = State.ref "Cduce.compile_env" Compile.empty

let get_global_value cenv v =
  Eval.var (Compile.find v !compile_env)

let get_global_type v =
  Typer.find_value v !typing_env

let enter_global_value x v t =
  typing_env := Typer.enter_value x t !typing_env;
  compile_env := Compile.enter_global !compile_env x; 
  Eval.push v
  
let rec is_abstraction = function
  | Ast.Abstraction _ -> true
  | Ast.LocatedExpr (_,e) -> is_abstraction e
  | _ -> false

let print_norm ppf d = 
  Location.protect ppf 
    (fun ppf -> Types.Print.print ppf ((*Types.normalize*) d))

let print_sample ppf s =
  Location.protect ppf
    (fun ppf -> Sample.print ppf s)

let print_protect ppf s =
  Location.protect ppf (fun ppf -> Format.fprintf ppf "%s" s)

let print_value ppf v =
  Location.protect ppf (fun ppf -> Value.print ppf v)

let dump_value ppf x t v =
  Format.fprintf ppf "@[val %a : @[%a = %a@]@]@."
    U.print (Id.value x) print_norm t print_value v

let dump_env ppf tenv cenv =
  Format.fprintf ppf "Types:%a@." Typer.dump_types tenv;
  Format.fprintf ppf "Namespace prefixes:@\n%a" Typer.dump_ns tenv;
  Format.fprintf ppf "Namespace prefixes used for pretty-printing:@.%t"
    Ns.InternalPrinter.dump;
  Format.fprintf ppf "Schemas: %s@."
    (String.concat " " (List.map U.get_str (Typer.get_schema_names ())));
  Format.fprintf ppf "Values:@.";
  Typer.iter_values tenv
    (fun x t -> dump_value ppf x t (get_global_value cenv x))

let directive_help ppf =
  Format.fprintf ppf
"Toplevel directives:
  #quit;;                 quit the interpreter
  #env;;                  dump current environment
  #reinit_ns;;            reinitialize namespace processing
  #help;;                 shows this help message
  #dump_value <expr>;;    dump an XML-ish representation of the resulting
                          value of a given expression
  #print_schema <name>;;
  #print_type <name>;;
"

let rec print_exn ppf = function
  | Location (loc, w, exn) ->
      Format.fprintf ppf "Error %a:@." Location.print_loc (loc,w);
      Format.fprintf ppf "%a" Location.html_hilight (loc,w); 
      print_exn ppf exn
  | Value.CDuceExn v ->
      Format.fprintf ppf "Uncaught CDuce exception: @[%a@]@."
        print_value v
  | Typer.WrongLabel (t,l) ->
      Format.fprintf ppf "Wrong record selection; field %a " 
        Label.print (LabelPool.value l);
      Format.fprintf ppf "not present in an expression of type:@.%a@."
        print_norm t
  | Typer.ShouldHave (t,msg) ->
      Format.fprintf ppf "This expression should have type:@.%a@.%a@." 
        print_norm t
        print_protect msg
  | Typer.ShouldHave2 (t1,msg,t2) ->
      Format.fprintf ppf "This expression should have type:@.%a@.%a %a@." 
        print_norm t1
        print_protect msg
        print_norm t2
  | Typer.Error s ->
      Format.fprintf ppf "%a@." print_protect s
  | Typer.Constraint (s,t) ->
      Format.fprintf ppf "This expression should have type:@.%a@." 
        print_norm t;
      Format.fprintf ppf "but its inferred type is:@.%a@." 
        print_norm s;
      Format.fprintf ppf "which is not a subtype, as shown by the sample:@.%a@." 
        print_sample (Sample.get (Types.diff s t))
  | Typer.NonExhaustive t ->
      Format.fprintf ppf "This pattern matching is not exhaustive@.";
      Format.fprintf ppf "Residual type:@.%a@."
        print_norm t;
      Format.fprintf ppf "Sample:@.%a@." print_sample (Sample.get t)
  | Typer.UnboundId (x,tn) ->
      Format.fprintf ppf "Unbound identifier %a%s@." U.print (Id.value x)
        (if tn then " (it is a type name)" else "")
  | Ulexer.Error (i,j,s) ->
      let loc = Location.loc_of_pos (i,j), `Full in
      Format.fprintf ppf "Error %a:@." Location.print_loc loc;
      Format.fprintf ppf "%a%s" Location.html_hilight loc s
  | Parser.Error s | Stream.Error s -> 
      Format.fprintf ppf "Parsing error: %a@." print_protect s
  | Librarian.InconsistentCrc id ->
      Format.fprintf ppf "Link error:@.";
      let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
      Format.fprintf ppf "Inconsistent checksum (compilation unit: %s)@."
        name
  | Librarian.NoImplementation id ->
      Format.fprintf ppf "Link error:@.";
      let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
      Format.fprintf ppf "No implementation found for compilation unit: %s@."
        name
  | Librarian.Loop id ->
      Format.fprintf ppf "Compilation error:@.";
      let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
      Format.fprintf ppf "Loop between compilation unit (compilation unit: %s)@."
        name
  | InvalidInputFilename f ->
      Format.fprintf ppf "Compilation error:@.";
      Format.fprintf ppf "Source filename must have extension .cd@.";
  | InvalidObjectFilename f ->
      Format.fprintf ppf "Compilation error:@.";
      Format.fprintf ppf "Object filename must have extension .cdo and no path@.";
  | Librarian.InvalidObject f ->
      Format.fprintf ppf "Invalid object file %s@." f
  | Librarian.CannotOpen f ->
      Format.fprintf ppf "Cannot open file %s@." f
  | Location.Generic s ->
      Format.fprintf ppf "%a@." print_protect s
  | exn ->
(*      raise exn *)
      Format.fprintf ppf "%a@." print_protect (Printexc.to_string exn)


let eval_quiet tenv cenv e = 
  let (e,_) = Typer.type_expr tenv e in
  let e = Compile.compile_eval cenv e in 
  Eval.expr e

let debug ppf tenv cenv = function
  | `Subtype (t1,t2) ->
      Format.fprintf ppf "[DEBUG:subtype]@.";
      let t1 = Types.descr (Typer.typ tenv t1)
      and t2 = Types.descr (Typer.typ tenv t2) in
      let s = Types.subtype t1 t2 in
      Format.fprintf ppf "%a %a %a : %b@." print_norm t1 print_protect "<=" print_norm t2 s
  | `Sample t ->
      Format.fprintf ppf "[DEBUG:sample]@.";
      (try
         let t = Types.descr (Typer.typ tenv t) in
         Format.fprintf ppf "%a@." print_sample (Sample.get t)
       with Not_found ->
         Format.fprintf ppf "Empty type : no sample !@.")
  | `Filter (t,p) -> 
      Format.fprintf ppf "[DEBUG:filter]@.";
      let t = Typer.typ tenv t
      and p = Typer.pat tenv p in
      let f = Patterns.filter (Types.descr t) p in
      List.iter (fun (x,t) ->
                   Format.fprintf ppf " %a:%a@." U.print (Id.value x)
                     print_norm (Types.descr t)) f
  | `Accept p ->
      Format.fprintf ppf "[DEBUG:accept]@.";
      let p = Typer.pat tenv p in
      let t = Patterns.accept p in
      Format.fprintf ppf " %a@." Types.Print.print (Types.descr t)
  | `Compile (t,pl) ->
      Format.fprintf ppf "[DEBUG:compile]@.";
      let t = Typer.typ tenv t
      and pl = List.map (Typer.pat tenv) pl in
      Patterns.Compile.debug_compile ppf t pl
  | `Explain (t,e) ->
      Format.fprintf ppf "[DEBUG:explain]@.";
      let t = Typer.typ tenv t in
      (match Explain.explain (Types.descr t) (eval_quiet tenv cenv e) with
         | Some p ->
             Format.fprintf ppf "Explanation: @[%a@]@." 
               Explain.print_path p
         | None ->
             Format.fprintf ppf "Explanation: value has given type@.")


let flush_ppf ppf = Format.fprintf ppf "@."

let directive ppf tenv cenv = function
  | `Debug d ->
      debug ppf tenv cenv d
  | `Quit ->
      (if !toplevel then raise End_of_file)
  | `Env ->
      dump_env ppf tenv cenv
  | `Print_schema schema ->
      Schema_common.print_schema ppf (Typer.get_schema schema);
      flush_ppf ppf
  | `Print_type name ->
      Typer.dump_type ppf tenv name;
      flush_ppf ppf
  | `Print_schema_type schema_ref ->
      Typer.dump_schema_type ppf schema_ref;
      flush_ppf ppf
  | `Reinit_ns ->
      Typer.set_ns_table_for_printer tenv
  | `Help ->
      directive_help ppf
  | `Dump pexpr ->
      Value.dump_xml ppf (eval_quiet tenv cenv pexpr);
      flush_ppf ppf

let print_id_opt ppf = function
  | None -> Format.fprintf ppf "-"
  | Some id -> Format.fprintf ppf "val %a" U.print (Id.value id)

let print_value_opt ppf = function
  | None -> ()
  | Some v -> Format.fprintf ppf " = %a" print_value v

let show ppf id t v =
  Format.fprintf ppf "@[%a : @[%a%a@]@]@."
    print_id_opt id 
    print_norm t 
    print_value_opt v

let phrases ppf phs =
  let (tenv,cenv,_) = 
    Compile.comp_unit 
      ~run:true ~show:(show ppf) 
      ~loading:(fun cu -> Librarian.import cu; Librarian.run Value.nil cu)
      ~directive:(directive ppf)
      !typing_env !compile_env phs in
  typing_env := tenv;
  compile_env := cenv

let catch_exn ppf_err exn =
  if not catch_exceptions then raise exn;
  match exn with
  | (End_of_file | Failure _ | Not_found | Invalid_argument _ | Sys.Break) 
      as e -> 
      raise e
  | exn -> 
      print_exn ppf_err exn;
      Format.fprintf ppf_err "@."

let parse rule input =
  try Parser.localize_exn (fun () -> rule input)
  with e -> Parser.sync (); raise e

let run rule ppf ppf_err input =
  try phrases ppf (parse rule input); true
  with exn -> catch_exn ppf_err exn; false

let script = run Parser.prog
let topinput = run Parser.top_phrases

ifdef ML_INTERFACE then 
  let check_ml cu id out_dir out =
    let fnam = String.copy cu in
    String.set fnam 0 ( Char.lowercase ( String.get fnam 0 ) );
    try
      let name = fnam ^ ".cmi" in
      let file = List.find ( 
        fun dir -> Sys.file_exists ( Filename.concat dir name ) 
      ) !Librarian.obj_path in
      if file = "" then raise Not_found;
      let file = Filename.concat file name in
      let ml_cu = ML.CompUnit.from_bytecode file cu
      and cd_cu = Ml_cduce.CompUnit.from_types_cu cu id in
      Ml_checker.run ml_cu cd_cu;
      let out = open_out ( Filename.concat out_dir (cu ^ ".ml") ) in
      let fmt = Format.formatter_of_out_channel out in
      Ml_generator.ML.generate fmt ml_cu cd_cu;
      close_out out;
    with Not_found -> ( 
      let name = fnam ^ ".mli" in
      let file = List.find (
        fun dir -> Sys.file_exists ( Filename.concat dir name )
      ) !Librarian.obj_path in
      if file <> "" then Format.eprintf "Warning: found %s.mli but no %s.cmi: forgotten compilation?@." fnam fnam;
    )
else 
  let check_ml cu id out_dir out = ();;

let compile src out_dir =
  try
    if not (Filename.check_suffix src ".cd")
    then raise (InvalidInputFilename src);
    let cu = Filename.chop_suffix (Filename.basename src) ".cd" in
    let out_dir = 
      match out_dir with
        | None -> Filename.dirname src
        | Some x -> x in
    let out = Filename.concat out_dir (cu ^ ".cdo") in
    let id = Types.CompUnit.mk (U.mk_latin1 cu) in
    Librarian.compile !verbose id src;
    Librarian.save id out;
    check_ml cu id out_dir out;
    exit 0
  with exn -> catch_exn Format.err_formatter exn; exit 1
  
let compile_run src argv =
  try
    if not (Filename.check_suffix src ".cd")
    then raise (InvalidInputFilename src);
    let cu = Filename.chop_suffix (Filename.basename src) ".cd" in
    let id = Types.CompUnit.mk (U.mk_latin1 cu) in
    Librarian.compile !verbose id src;
    Librarian.run argv id
  with exn -> catch_exn Format.err_formatter exn; exit 1

let run obj argv =  
  try
    if not (Filename.check_suffix obj ".cdo") || (Filename.basename obj <> obj)
    then raise (InvalidObjectFilename obj);
    let cu = Filename.chop_suffix (Filename.basename obj) ".cdo" in
    let id = Types.CompUnit.mk (U.mk_latin1 cu) in
    Librarian.import id;
    Librarian.run argv id
  with exn -> catch_exn Format.err_formatter exn; exit 1


let dump_env ppf = dump_env ppf !typing_env !compile_env
1	open Location
2	open Ident
3
4	ifdef ML_INTERFACE then module ML = Ml_ocaml;;
5
6	exception InvalidInputFilename of string
7	exception InvalidObjectFilename of string
8
9	(* if set to false toplevel exception aren't cought.
10	* Useful for debugging with OCAMLRUNPARAM="b" *)
11	let catch_exceptions = true
12
13	(* retuns a filename without the suffix suff if any *)
14	let prefix filename suff =
15	if Filename.check_suffix filename suff then
16	try
17	Filename.chop_extension filename
18	with Invalid_argument filename -> failwith "Not a point in the suffix?"
19	else filename
20
21	let toplevel = ref false
22	let verbose = ref false
23
24	let typing_env = State.ref "Cduce.typing_env" Builtin.env
25	let compile_env = State.ref "Cduce.compile_env" Compile.empty
26
27	let get_global_value cenv v =
28	Eval.var (Compile.find v !compile_env)
29
30	let get_global_type v =
31	Typer.find_value v !typing_env
32
33	let enter_global_value x v t =
34	typing_env := Typer.enter_value x t !typing_env;
35	compile_env := Compile.enter_global !compile_env x;
36	Eval.push v
37
38	let rec is_abstraction = function
39	\| Ast.Abstraction _ -> true
40	\| Ast.LocatedExpr (_,e) -> is_abstraction e
41	\| _ -> false
42
43	let print_norm ppf d =
44	Location.protect ppf
45	(fun ppf -> Types.Print.print ppf ((Types.normalize) d))
46
47	let print_sample ppf s =
48	Location.protect ppf
49	(fun ppf -> Sample.print ppf s)
50
51	let print_protect ppf s =
52	Location.protect ppf (fun ppf -> Format.fprintf ppf "%s" s)
53
54	let print_value ppf v =
55	Location.protect ppf (fun ppf -> Value.print ppf v)
56
57	let dump_value ppf x t v =
58	Format.fprintf ppf "@[val %a : @[%a = %a@]@]@."
59	U.print (Id.value x) print_norm t print_value v
60
61	let dump_env ppf tenv cenv =
62	Format.fprintf ppf "Types:%a@." Typer.dump_types tenv;
63	Format.fprintf ppf "Namespace prefixes:@\n%a" Typer.dump_ns tenv;
64	Format.fprintf ppf "Namespace prefixes used for pretty-printing:@.%t"
65	Ns.InternalPrinter.dump;
66	Format.fprintf ppf "Schemas: %s@."
67	(String.concat " " (List.map U.get_str (Typer.get_schema_names ())));
68	Format.fprintf ppf "Values:@.";
69	Typer.iter_values tenv
70	(fun x t -> dump_value ppf x t (get_global_value cenv x))
71
72	let directive_help ppf =
73	Format.fprintf ppf
74	"Toplevel directives:
75	#quit;; quit the interpreter
76	#env;; dump current environment
77	#reinit_ns;; reinitialize namespace processing
78	#help;; shows this help message
79	#dump_value <expr>;; dump an XML-ish representation of the resulting
80	value of a given expression
81	#print_schema <name>;;
82	#print_type <name>;;
83	"
84
85	let rec print_exn ppf = function
86	\| Location (loc, w, exn) ->
87	Format.fprintf ppf "Error %a:@." Location.print_loc (loc,w);
88	Format.fprintf ppf "%a" Location.html_hilight (loc,w);
89	print_exn ppf exn
90	\| Value.CDuceExn v ->
91	Format.fprintf ppf "Uncaught CDuce exception: @[%a@]@."
92	print_value v
93	\| Typer.WrongLabel (t,l) ->
94	Format.fprintf ppf "Wrong record selection; field %a "
95	Label.print (LabelPool.value l);
96	Format.fprintf ppf "not present in an expression of type:@.%a@."
97	print_norm t
98	\| Typer.ShouldHave (t,msg) ->
99	Format.fprintf ppf "This expression should have type:@.%a@.%a@."
100	print_norm t
101	print_protect msg
102	\| Typer.ShouldHave2 (t1,msg,t2) ->
103	Format.fprintf ppf "This expression should have type:@.%a@.%a %a@."
104	print_norm t1
105	print_protect msg
106	print_norm t2
107	\| Typer.Error s ->
108	Format.fprintf ppf "%a@." print_protect s
109	\| Typer.Constraint (s,t) ->
110	Format.fprintf ppf "This expression should have type:@.%a@."
111	print_norm t;
112	Format.fprintf ppf "but its inferred type is:@.%a@."
113	print_norm s;
114	Format.fprintf ppf "which is not a subtype, as shown by the sample:@.%a@."
115	print_sample (Sample.get (Types.diff s t))
116	\| Typer.NonExhaustive t ->
117	Format.fprintf ppf "This pattern matching is not exhaustive@.";
118	Format.fprintf ppf "Residual type:@.%a@."
119	print_norm t;
120	Format.fprintf ppf "Sample:@.%a@." print_sample (Sample.get t)
121	\| Typer.UnboundId (x,tn) ->
122	Format.fprintf ppf "Unbound identifier %a%s@." U.print (Id.value x)
123	(if tn then " (it is a type name)" else "")
124	\| Ulexer.Error (i,j,s) ->
125	let loc = Location.loc_of_pos (i,j), `Full in
126	Format.fprintf ppf "Error %a:@." Location.print_loc loc;
127	Format.fprintf ppf "%a%s" Location.html_hilight loc s
128	\| Parser.Error s \| Stream.Error s ->
129	Format.fprintf ppf "Parsing error: %a@." print_protect s
130	\| Librarian.InconsistentCrc id ->
131	Format.fprintf ppf "Link error:@.";
132	let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
133	Format.fprintf ppf "Inconsistent checksum (compilation unit: %s)@."
134	name
135	\| Librarian.NoImplementation id ->
136	Format.fprintf ppf "Link error:@.";
137	let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
138	Format.fprintf ppf "No implementation found for compilation unit: %s@."
139	name
140	\| Librarian.Loop id ->
141	Format.fprintf ppf "Compilation error:@.";
142	let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
143	Format.fprintf ppf "Loop between compilation unit (compilation unit: %s)@."
144	name
145	\| InvalidInputFilename f ->
146	Format.fprintf ppf "Compilation error:@.";
147	Format.fprintf ppf "Source filename must have extension .cd@.";
148	\| InvalidObjectFilename f ->
149	Format.fprintf ppf "Compilation error:@.";
150	Format.fprintf ppf "Object filename must have extension .cdo and no path@.";
151	\| Librarian.InvalidObject f ->
152	Format.fprintf ppf "Invalid object file %s@." f
153	\| Librarian.CannotOpen f ->
154	Format.fprintf ppf "Cannot open file %s@." f
155	\| Location.Generic s ->
156	Format.fprintf ppf "%a@." print_protect s
157	\| exn ->
158	(* raise exn *)
159	Format.fprintf ppf "%a@." print_protect (Printexc.to_string exn)
160
161
162	let eval_quiet tenv cenv e =
163	let (e,_) = Typer.type_expr tenv e in
164	let e = Compile.compile_eval cenv e in
165	Eval.expr e
166
167	let debug ppf tenv cenv = function
168	\| `Subtype (t1,t2) ->
169	Format.fprintf ppf "[DEBUG:subtype]@.";
170	let t1 = Types.descr (Typer.typ tenv t1)
171	and t2 = Types.descr (Typer.typ tenv t2) in
172	let s = Types.subtype t1 t2 in
173	Format.fprintf ppf "%a %a %a : %b@." print_norm t1 print_protect "<=" print_norm t2 s
174	\| `Sample t ->
175	Format.fprintf ppf "[DEBUG:sample]@.";
176	(try
177	let t = Types.descr (Typer.typ tenv t) in
178	Format.fprintf ppf "%a@." print_sample (Sample.get t)
179	with Not_found ->
180	Format.fprintf ppf "Empty type : no sample !@.")
181	\| `Filter (t,p) ->
182	Format.fprintf ppf "[DEBUG:filter]@.";
183	let t = Typer.typ tenv t
184	and p = Typer.pat tenv p in
185	let f = Patterns.filter (Types.descr t) p in
186	List.iter (fun (x,t) ->
187	Format.fprintf ppf " %a:%a@." U.print (Id.value x)
188	print_norm (Types.descr t)) f
189	\| `Accept p ->
190	Format.fprintf ppf "[DEBUG:accept]@.";
191	let p = Typer.pat tenv p in
192	let t = Patterns.accept p in
193	Format.fprintf ppf " %a@." Types.Print.print (Types.descr t)
194	\| `Compile (t,pl) ->
195	Format.fprintf ppf "[DEBUG:compile]@.";
196	let t = Typer.typ tenv t
197	and pl = List.map (Typer.pat tenv) pl in
198	Patterns.Compile.debug_compile ppf t pl
199	\| `Explain (t,e) ->
200	Format.fprintf ppf "[DEBUG:explain]@.";
201	let t = Typer.typ tenv t in
202	(match Explain.explain (Types.descr t) (eval_quiet tenv cenv e) with
203	\| Some p ->
204	Format.fprintf ppf "Explanation: @[%a@]@."
205	Explain.print_path p
206	\| None ->
207	Format.fprintf ppf "Explanation: value has given type@.")
208
209
210	let flush_ppf ppf = Format.fprintf ppf "@."
211
212	let directive ppf tenv cenv = function
213	\| `Debug d ->
214	debug ppf tenv cenv d
215	\| `Quit ->
216	(if !toplevel then raise End_of_file)
217	\| `Env ->
218	dump_env ppf tenv cenv
219	\| `Print_schema schema ->
220	Schema_common.print_schema ppf (Typer.get_schema schema);
221	flush_ppf ppf
222	\| `Print_type name ->
223	Typer.dump_type ppf tenv name;
224	flush_ppf ppf
225	\| `Print_schema_type schema_ref ->
226	Typer.dump_schema_type ppf schema_ref;
227	flush_ppf ppf
228	\| `Reinit_ns ->
229	Typer.set_ns_table_for_printer tenv
230	\| `Help ->
231	directive_help ppf
232	\| `Dump pexpr ->
233	Value.dump_xml ppf (eval_quiet tenv cenv pexpr);
234	flush_ppf ppf
235
236	let print_id_opt ppf = function
237	\| None -> Format.fprintf ppf "-"
238	\| Some id -> Format.fprintf ppf "val %a" U.print (Id.value id)
239
240	let print_value_opt ppf = function
241	\| None -> ()
242	\| Some v -> Format.fprintf ppf " = %a" print_value v
243
244	let show ppf id t v =
245	Format.fprintf ppf "@[%a : @[%a%a@]@]@."
246	print_id_opt id
247	print_norm t
248	print_value_opt v
249
250	let phrases ppf phs =
251	let (tenv,cenv,_) =
252	Compile.comp_unit
253	~run:true ~show:(show ppf)
254	~loading:(fun cu -> Librarian.import cu; Librarian.run Value.nil cu)
255	~directive:(directive ppf)
256	!typing_env !compile_env phs in
257	typing_env := tenv;
258	compile_env := cenv
259
260	let catch_exn ppf_err exn =
261	if not catch_exceptions then raise exn;
262	match exn with
263	\| (End_of_file \| Failure _ \| Not_found \| Invalid_argument _ \| Sys.Break)
264	as e ->
265	raise e
266	\| exn ->
267	print_exn ppf_err exn;
268	Format.fprintf ppf_err "@."
269
270	let parse rule input =
271	try Parser.localize_exn (fun () -> rule input)
272	with e -> Parser.sync (); raise e
273
274	let run rule ppf ppf_err input =
275	try phrases ppf (parse rule input); true
276	with exn -> catch_exn ppf_err exn; false
277
278	let script = run Parser.prog
279	let topinput = run Parser.top_phrases
280
281	ifdef ML_INTERFACE then
282	let check_ml cu id out_dir out =
283	let fnam = String.copy cu in
284	String.set fnam 0 ( Char.lowercase ( String.get fnam 0 ) );
285	try
286	let name = fnam ^ ".cmi" in
287	let file = List.find (
288	fun dir -> Sys.file_exists ( Filename.concat dir name )
289	) !Librarian.obj_path in
290	if file = "" then raise Not_found;
291	let file = Filename.concat file name in
292	let ml_cu = ML.CompUnit.from_bytecode file cu
293	and cd_cu = Ml_cduce.CompUnit.from_types_cu cu id in
294	Ml_checker.run ml_cu cd_cu;
295	let out = open_out ( Filename.concat out_dir (cu ^ ".ml") ) in
296	let fmt = Format.formatter_of_out_channel out in
297	Ml_generator.ML.generate fmt ml_cu cd_cu;
298	close_out out;
299	with Not_found -> (
300	let name = fnam ^ ".mli" in
301	let file = List.find (
302	fun dir -> Sys.file_exists ( Filename.concat dir name )
303	) !Librarian.obj_path in
304	if file <> "" then Format.eprintf "Warning: found %s.mli but no %s.cmi: forgotten compilation?@." fnam fnam;
305	)
306	else
307	let check_ml cu id out_dir out = ();;
308
309	let compile src out_dir =
310	try
311	if not (Filename.check_suffix src ".cd")
312	then raise (InvalidInputFilename src);
313	let cu = Filename.chop_suffix (Filename.basename src) ".cd" in
314	let out_dir =
315	match out_dir with
316	\| None -> Filename.dirname src
317	\| Some x -> x in
318	let out = Filename.concat out_dir (cu ^ ".cdo") in
319	let id = Types.CompUnit.mk (U.mk_latin1 cu) in
320	Librarian.compile !verbose id src;
321	Librarian.save id out;
322	check_ml cu id out_dir out;
323	exit 0
324	with exn -> catch_exn Format.err_formatter exn; exit 1
325
326	let compile_run src argv =
327	try
328	if not (Filename.check_suffix src ".cd")
329	then raise (InvalidInputFilename src);
330	let cu = Filename.chop_suffix (Filename.basename src) ".cd" in
331	let id = Types.CompUnit.mk (U.mk_latin1 cu) in
332	Librarian.compile !verbose id src;
333	Librarian.run argv id
334	with exn -> catch_exn Format.err_formatter exn; exit 1
335
336	let run obj argv =
337	try
338	if not (Filename.check_suffix obj ".cdo") \|\| (Filename.basename obj <> obj)
339	then raise (InvalidObjectFilename obj);
340	let cu = Filename.chop_suffix (Filename.basename obj) ".cdo" in
341	let id = Types.CompUnit.mk (U.mk_latin1 cu) in
342	Librarian.import id;
343	Librarian.run argv id
344	with exn -> catch_exn Format.err_formatter exn; exit 1
345
346
347	let dump_env ppf = dump_env ppf !typing_env !compile_env