viewcvs.cgi/driver/cduce.ml

open Location
open Ident

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 quiet = ref false
let toplevel = ref false

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

let do_compile = ref false

let get_global_value v =
  if !do_compile 
  then Eval.L.var (Compile.find v !compile_env)
  else Eval.find_value v !eval_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;

  if !do_compile 
  then (compile_env := Compile.enter_global !compile_env x; Eval.L.push v)
  else eval_env := Eval.enter_value x v !eval_env
  
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 =
  Format.fprintf ppf "Types:%a@." Typer.dump_types !typing_env;
  Format.fprintf ppf "Namespace prefixes:@\n%a" Typer.dump_ns !typing_env;
  Format.fprintf ppf "Namespace prefixes used for pretty-printing:@.%t"
    Ns.InternalPrinter.dump;
  Format.fprintf ppf "Schemas: %s@."
    (String.concat " " (Typer.get_schema_names ()));
  Format.fprintf ppf "Values:@.";
  Typer.iter_values !typing_env
    (fun x t -> dump_value ppf x t (get_global_value 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 display ppf l =
  if not !quiet then
    List.iter
      (fun (x,t) -> dump_value ppf x t (get_global_value x))
      l

let eval ppf e =
  let (e,t) = Typer.type_expr !typing_env e in
  
  if not !quiet then
    Location.dump_loc ppf (e.Typed.exp_loc,`Full);

  let v =   
    if !do_compile then
      let e = Compile.compile_eval !compile_env e in 
      Eval.L.expr e
    else
      Eval.eval !eval_env e
  in
  if not !quiet then
    Format.fprintf ppf "- : @[@[%a@] =@ @[%a@]@]@." 
      print_norm t print_value v; 
  v
  
let let_decl ppf p e =
  let (tenv,decl,typs) = Typer.type_let_decl !typing_env p e in
  
  let () =
    if !do_compile then
      let (env,decl) = Compile.compile_let_decl !compile_env decl in
      Eval.L.eval decl;
      compile_env := env
    else
      eval_env := Eval.eval_let_decl !eval_env decl
  in
  typing_env := tenv;
  display ppf typs
  

let let_funs ppf funs =
  let (tenv,funs,typs) = Typer.type_let_funs !typing_env funs in
  
  let () =
    if !do_compile then
      let (env,funs) = Compile.compile_rec_funs !compile_env funs in
      Eval.L.eval funs;
      compile_env := env;
    else 
      eval_env := Eval.eval_rec_funs !eval_env funs 
  in
  typing_env := tenv;
  display ppf typs


let debug ppf = function
  | `Subtype (t1,t2) ->
      Format.fprintf ppf "[DEBUG:subtype]@.";
      let t1 = Types.descr (Typer.typ !typing_env t1)
      and t2 = Types.descr (Typer.typ !typing_env 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 !typing_env 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 !typing_env t
      and p = Typer.pat !typing_env 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 !typing_env 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 !typing_env t
      and pl = List.map (Typer.pat !typing_env) pl in
      Patterns.Compile.debug_compile ppf t pl
  | `Explain (t,e) ->
      Format.fprintf ppf "[DEBUG:explain]@.";
      let t = Typer.typ !typing_env t in
      (match Explain.explain (Types.descr t) (eval ppf e) with
         | Some p ->
             Format.fprintf ppf "Explanation: @[%a@]@." 
               Explain.print_path p
         | None ->
             Format.fprintf ppf "Explanation: value has given type@.")


let rec collect_funs ppf accu = function
  | { descr = Ast.FunDecl e } :: rest -> collect_funs ppf (e::accu) rest
  | rest -> let_funs ppf accu; rest

let rec collect_types ppf accu = function
  | { descr = Ast.TypeDecl (x,t) } :: rest -> 
      collect_types ppf ((x,t) :: accu) rest
  | rest ->
      typing_env := 
        Typer.enter_types (Typer.type_defs !typing_env accu) !typing_env;
      rest

let flush_stdout () = Format.fprintf Format.std_formatter "@."

let rec phrases ppf phs = match phs with
  | { descr = Ast.FunDecl _ } :: _ -> 
      phrases ppf (collect_funs ppf [] phs)
  | { descr = Ast.TypeDecl (_,_) } :: _ ->
      phrases ppf (collect_types ppf [] phs)
  | { descr = Ast.SchemaDecl (name, schema) } :: rest ->
      Typer.register_schema name schema;
      phrases ppf rest
  | { descr = Ast.Namespace (pr,ns) } :: rest ->
      typing_env := Typer.enter_ns pr ns !typing_env;
      phrases ppf rest
  | { descr = Ast.Using (x,cu) } :: rest ->
      Librarian.import cu;
      Librarian.run Value.nil cu;
      typing_env := Typer.enter_cu x cu !typing_env;
      phrases ppf rest
  | { descr = Ast.EvalStatement e } :: rest ->
      ignore (eval ppf e);
      phrases ppf rest
  | { descr = Ast.LetDecl (p,e) } :: rest ->
      let_decl ppf p e;
      phrases ppf rest
  | { descr = Ast.Debug l } :: rest -> 
      debug ppf l; 
      phrases ppf rest
  | { descr = Ast.Directive `Quit } :: rest ->
      if !toplevel then raise End_of_file;
      phrases ppf rest
  | { descr = Ast.Directive `Env } :: rest ->
      dump_env ppf;
      phrases ppf rest
  | { descr = Ast.Directive (`Print_schema schema) } :: rest ->
      Schema_common.print_schema ppf (Typer.get_schema schema);
      flush_stdout ();
      phrases ppf rest
  | { descr = Ast.Directive (`Print_type name) } :: rest ->
      Typer.dump_type Format.std_formatter !typing_env name;
      flush_stdout ();
      phrases ppf rest
  | { descr = Ast.Directive (`Print_schema_type schema_ref) } :: rest ->
      Typer.dump_schema_type Format.std_formatter schema_ref;
      flush_stdout ();
      phrases ppf rest
  | { descr = Ast.Directive `Reinit_ns } :: rest ->
      Typer.set_ns_table_for_printer !typing_env;
      phrases ppf rest
  | { descr = Ast.Directive `Help } :: rest ->
      directive_help ppf;
      phrases ppf rest
  | { descr = Ast.Directive (`Dump pexpr) } :: rest ->
      Format.fprintf ppf "%a@."
        Value.dump_xml (Eval.eval !eval_env
          (fst (Typer.type_expr !typing_env pexpr)));
      phrases ppf rest
  | [] -> ()

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

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 id src;
    Librarian.save id 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 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

1	abate	10	open Location
2	abate	225	open Ident
3	abate	10
4	abate	723	exception InvalidInputFilename of string
5			exception InvalidObjectFilename of string
6
7	abate	746	(* if set to false toplevel exception aren't cought. Useful for debugging with
8			* OCAMLRUNPARAM="b" *)
9			let catch_exceptions = true
10
11	abate	707	(* retuns a filename without the suffix suff if any *)
12			let prefix filename suff =
13			if Filename.check_suffix filename suff then
14			try
15			Filename.chop_extension filename
16			with Invalid_argument filename -> failwith "Not a point in the suffix?"
17			else filename
18
19	abate	217	let quiet = ref false
20	abate	446	let toplevel = ref false
21	abate	217
22	abate	686	let typing_env = State.ref "Cduce.typing_env" Builtin.env
23	abate	695	let eval_env = State.ref "Cduce.eval_env" Eval.empty
24	abate	692	let compile_env = State.ref "Cduce.compile_env" Compile.empty
25	abate	431
26	abate	692	let do_compile = ref false
27
28			let get_global_value v =
29			if !do_compile
30	abate	698	then Eval.L.var (Compile.find v !compile_env)
31	abate	695	else Eval.find_value v !eval_env
32	abate	692
33			let get_global_type v =
34			Typer.find_value v !typing_env
35
36	abate	368	let enter_global_value x v t =
37	abate	692	typing_env := Typer.enter_value x t !typing_env;
38	abate	368
39	abate	692	if !do_compile
40			then (compile_env := Compile.enter_global !compile_env x; Eval.L.push v)
41	abate	695	else eval_env := Eval.enter_value x v !eval_env
42	abate	692
43	abate	332	let rec is_abstraction = function
44			\| Ast.Abstraction _ -> true
45			\| Ast.LocatedExpr (_,e) -> is_abstraction e
46			\| _ -> false
47
48	abate	29	let print_norm ppf d =
49	abate	92	Location.protect ppf
50	abate	367	(fun ppf -> Types.Print.print ppf ((Types.normalize) d))
51	abate	29
52	abate	423	let print_sample ppf s =
53			Location.protect ppf
54			(fun ppf -> Sample.print ppf s)
55
56	abate	541	let print_protect ppf s =
57			Location.protect ppf (fun ppf -> Format.fprintf ppf "%s" s)
58	abate	423
59	abate	92	let print_value ppf v =
60			Location.protect ppf (fun ppf -> Value.print ppf v)
61
62	abate	695	let dump_value ppf x t v =
63			Format.fprintf ppf "@[val %a : @[%a = %a@]@]@."
64			U.print (Id.value x) print_norm t print_value v
65
66	abate	107	let dump_env ppf =
67	abate	686	Format.fprintf ppf "Types:%a@." Typer.dump_types !typing_env;
68			Format.fprintf ppf "Namespace prefixes:@\n%a" Typer.dump_ns !typing_env;
69	abate	553	Format.fprintf ppf "Namespace prefixes used for pretty-printing:@.%t"
70	abate	552	Ns.InternalPrinter.dump;
71	abate	788	Format.fprintf ppf "Schemas: %s@."
72			(String.concat " " (Typer.get_schema_names ()));
73	abate	691	Format.fprintf ppf "Values:@.";
74	abate	695	Typer.iter_values !typing_env
75			(fun x t -> dump_value ppf x t (get_global_value x))
76	abate	107
77	abate	702	let directive_help ppf =
78			Format.fprintf ppf
79			"Toplevel directives:
80	abate	788	#quit;; quit the interpreter
81			#env;; dump current environment
82			#reinit_ns;; reinitialize namespace processing
83			#help;; shows this help message
84			#dump_value <expr>;; dump an XML-ish representation of the resulting
85			value of a given expression
86			#print_schema <name>;;
87			#print_type <name>;;
88	abate	702	"
89
90	abate	10	let rec print_exn ppf = function
91	abate	522	\| Location (loc, w, exn) ->
92			Format.fprintf ppf "Error %a:@." Location.print_loc (loc,w);
93	abate	622	Format.fprintf ppf "%a" Location.html_hilight (loc,w);
94	abate	91	print_exn ppf exn
95	abate	64	\| Value.CDuceExn v ->
96	abate	433	Format.fprintf ppf "Uncaught CDuce exception: @[%a@]@."
97	abate	92	print_value v
98	abate	26	\| Typer.WrongLabel (t,l) ->
99	abate	529	Format.fprintf ppf "Wrong record selection; field %a "
100	abate	542	Label.print (LabelPool.value l);
101	abate	529	Format.fprintf ppf "not present in an expression of type:@.%a@."
102	abate	29	print_norm t
103	abate	19	\| Typer.ShouldHave (t,msg) ->
104	abate	622	Format.fprintf ppf "This expression should have type:@.%a@.%a@."
105	abate	29	print_norm t
106	abate	622	print_protect msg
107	abate	355	\| Typer.ShouldHave2 (t1,msg,t2) ->
108	abate	622	Format.fprintf ppf "This expression should have type:@.%a@.%a %a@."
109	abate	355	print_norm t1
110	abate	622	print_protect msg
111	abate	355	print_norm t2
112	abate	421	\| Typer.Error s ->
113	abate	622	Format.fprintf ppf "%a@." print_protect s
114	abate	421	\| Typer.Constraint (s,t) ->
115	abate	433	Format.fprintf ppf "This expression should have type:@.%a@."
116	abate	29	print_norm t;
117	abate	433	Format.fprintf ppf "but its inferred type is:@.%a@."
118	abate	29	print_norm s;
119	abate	433	Format.fprintf ppf "which is not a subtype, as shown by the sample:@.%a@."
120	abate	423	print_sample (Sample.get (Types.diff s t))
121	abate	17	\| Typer.NonExhaustive t ->
122	abate	433	Format.fprintf ppf "This pattern matching is not exhaustive@.";
123			Format.fprintf ppf "Residual type:@.%a@."
124	abate	29	print_norm t;
125	abate	433	Format.fprintf ppf "Sample:@.%a@." print_sample (Sample.get t)
126	abate	656	\| Typer.UnboundId (x,tn) ->
127			Format.fprintf ppf "Unbound identifier %a%s@." U.print (Id.value x)
128			(if tn then " (it is a type name)" else "")
129	abate	668	\| Ulexer.Error (i,j,s) ->
130			let loc = Location.loc_of_pos (i,j), `Full in
131			Format.fprintf ppf "Error %a:@." Location.print_loc loc;
132			Format.fprintf ppf "%a%s" Location.html_hilight loc s
133	abate	90	\| Parser.Error s \| Stream.Error s ->
134	abate	622	Format.fprintf ppf "Parsing error: %a@." print_protect s
135	abate	723	\| Librarian.InconsistentCrc id ->
136			Format.fprintf ppf "Link error:@.";
137			let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
138			Format.fprintf ppf "Inconsistent checksum (compilation unit: %s)@."
139			name
140			\| Librarian.NoImplementation id ->
141			Format.fprintf ppf "Link error:@.";
142			let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
143			Format.fprintf ppf "No implementation found for compilation unit: %s@."
144			name
145			\| Librarian.Loop id ->
146			Format.fprintf ppf "Compilation error:@.";
147			let name = Encodings.Utf8.to_string (Types.CompUnit.value id) in
148			Format.fprintf ppf "Loop between compilation unit (compilation unit: %s)@."
149			name
150			\| InvalidInputFilename f ->
151			Format.fprintf ppf "Compilation error:@.";
152			Format.fprintf ppf "Source filename must have extension .cd@.";
153			\| InvalidObjectFilename f ->
154			Format.fprintf ppf "Compilation error:@.";
155	abate	724	Format.fprintf ppf "Object filename must have extension .cdo and no path@.";
156	abate	723	\| Librarian.InvalidObject f ->
157			Format.fprintf ppf "Invalid object file %s@." f
158			\| Librarian.CannotOpen f ->
159			Format.fprintf ppf "Cannot open file %s@." f
160	abate	91	\| Location.Generic s ->
161	abate	622	Format.fprintf ppf "%a@." print_protect s
162	abate	10	\| exn ->
163	abate	403	(* raise exn *)
164	abate	622	Format.fprintf ppf "%a@." print_protect (Printexc.to_string exn)
165	abate	10
166	abate	694
167	abate	695	let display ppf l =
168			if not !quiet then
169			List.iter
170			(fun (x,t) -> dump_value ppf x t (get_global_value x))
171			l
172	abate	694
173			let eval ppf e =
174	abate	698	let (e,t) = Typer.type_expr !typing_env e in
175	abate	694
176			if not !quiet then
177			Location.dump_loc ppf (e.Typed.exp_loc,`Full);
178	abate	695
179			let v =
180			if !do_compile then
181	abate	698	let e = Compile.compile_eval !compile_env e in
182			Eval.L.expr e
183	abate	695	else
184			Eval.eval !eval_env e
185			in
186			if not !quiet then
187			Format.fprintf ppf "- : @[@[%a@] =@ @[%a@]@]@."
188			print_norm t print_value v;
189			v
190	abate	694
191	abate	695	let let_decl ppf p e =
192	abate	698	let (tenv,decl,typs) = Typer.type_let_decl !typing_env p e in
193	abate	694
194	abate	695	let () =
195			if !do_compile then
196			let (env,decl) = Compile.compile_let_decl !compile_env decl in
197	abate	698	Eval.L.eval decl;
198	abate	695	compile_env := env
199			else
200			eval_env := Eval.eval_let_decl !eval_env decl
201			in
202	abate	698	typing_env := tenv;
203	abate	695	display ppf typs
204
205	abate	694
206	abate	695	let let_funs ppf funs =
207	abate	698	let (tenv,funs,typs) = Typer.type_let_funs !typing_env funs in
208	abate	695
209			let () =
210			if !do_compile then
211			let (env,funs) = Compile.compile_rec_funs !compile_env funs in
212	abate	698	Eval.L.eval funs;
213	abate	695	compile_env := env;
214			else
215			eval_env := Eval.eval_rec_funs !eval_env funs
216			in
217	abate	698	typing_env := tenv;
218	abate	695	display ppf typs
219
220
221	abate	90	let debug ppf = function
222	abate	224	\| `Subtype (t1,t2) ->
223	abate	433	Format.fprintf ppf "[DEBUG:subtype]@.";
224	abate	686	let t1 = Types.descr (Typer.typ !typing_env t1)
225			and t2 = Types.descr (Typer.typ !typing_env t2) in
226	abate	541	let s = Types.subtype t1 t2 in
227			Format.fprintf ppf "%a %a %a : %b@." print_norm t1 print_protect "<=" print_norm t2 s
228	abate	407	\| `Sample t ->
229	abate	433	Format.fprintf ppf "[DEBUG:sample]@.";
230			(try
231	abate	686	let t = Types.descr (Typer.typ !typing_env t) in
232	abate	433	Format.fprintf ppf "%a@." print_sample (Sample.get t)
233			with Not_found ->
234			Format.fprintf ppf "Empty type : no sample !@.")
235	abate	43	\| `Filter (t,p) ->
236	abate	433	Format.fprintf ppf "[DEBUG:filter]@.";
237	abate	686	let t = Typer.typ !typing_env t
238			and p = Typer.pat !typing_env p in
239	abate	43	let f = Patterns.filter (Types.descr t) p in
240			List.iter (fun (x,t) ->
241	abate	433	Format.fprintf ppf " %a:%a@." U.print (Id.value x)
242	abate	43	print_norm (Types.descr t)) f
243			\| `Accept p ->
244	abate	433	Format.fprintf ppf "[DEBUG:accept]@.";
245	abate	686	let p = Typer.pat !typing_env p in
246	abate	43	let t = Patterns.accept p in
247	abate	433	Format.fprintf ppf " %a@." Types.Print.print (Types.descr t)
248	abate	43	\| `Compile (t,pl) ->
249	abate	433	Format.fprintf ppf "[DEBUG:compile]@.";
250	abate	686	let t = Typer.typ !typing_env t
251			and pl = List.map (Typer.pat !typing_env) pl in
252	abate	149	Patterns.Compile.debug_compile ppf t pl
253	abate	694	\| `Explain (t,e) ->
254			Format.fprintf ppf "[DEBUG:explain]@.";
255			let t = Typer.typ !typing_env t in
256			(match Explain.explain (Types.descr t) (eval ppf e) with
257			\| Some p ->
258			Format.fprintf ppf "Explanation: @[%a@]@."
259			Explain.print_path p
260			\| None ->
261			Format.fprintf ppf "Explanation: value has given type@.")
262	abate	66
263	abate	695
264	abate	431	let rec collect_funs ppf accu = function
265	abate	695	\| { descr = Ast.FunDecl e } :: rest -> collect_funs ppf (e::accu) rest
266			\| rest -> let_funs ppf accu; rest
267	abate	692
268	abate	431	let rec collect_types ppf accu = function
269			\| { descr = Ast.TypeDecl (x,t) } :: rest ->
270			collect_types ppf ((x,t) :: accu) rest
271			\| rest ->
272	abate	686	typing_env :=
273			Typer.enter_types (Typer.type_defs !typing_env accu) !typing_env;
274	abate	431	rest
275	abate	66
276	abate	788	let flush_stdout () = Format.fprintf Format.std_formatter "@."
277	abate	694
278	abate	431	let rec phrases ppf phs = match phs with
279			\| { descr = Ast.FunDecl _ } :: _ ->
280			phrases ppf (collect_funs ppf [] phs)
281			\| { descr = Ast.TypeDecl (_,_) } :: _ ->
282			phrases ppf (collect_types ppf [] phs)
283	abate	501	\| { descr = Ast.SchemaDecl (name, schema) } :: rest ->
284			Typer.register_schema name schema;
285			phrases ppf rest
286	abate	529	\| { descr = Ast.Namespace (pr,ns) } :: rest ->
287	abate	686	typing_env := Typer.enter_ns pr ns !typing_env;
288	abate	529	phrases ppf rest
289	abate	713	\| { descr = Ast.Using (x,cu) } :: rest ->
290	abate	714	Librarian.import cu;
291			Librarian.run Value.nil cu;
292	abate	713	typing_env := Typer.enter_cu x cu !typing_env;
293			phrases ppf rest
294	abate	431	\| { descr = Ast.EvalStatement e } :: rest ->
295	abate	694	ignore (eval ppf e);
296	abate	431	phrases ppf rest
297			\| { descr = Ast.LetDecl (p,e) } :: rest ->
298	abate	695	let_decl ppf p e;
299	abate	431	phrases ppf rest
300			\| { descr = Ast.Debug l } :: rest ->
301	abate	541	debug ppf l;
302	abate	431	phrases ppf rest
303	abate	446	\| { descr = Ast.Directive `Quit } :: rest ->
304			if !toplevel then raise End_of_file;
305			phrases ppf rest
306			\| { descr = Ast.Directive `Env } :: rest ->
307			dump_env ppf;
308			phrases ppf rest
309	abate	788	\| { descr = Ast.Directive (`Print_schema schema) } :: rest ->
310			Schema_common.print_schema ppf (Typer.get_schema schema);
311			flush_stdout ();
312			phrases ppf rest
313			\| { descr = Ast.Directive (`Print_type name) } :: rest ->
314			Typer.dump_type Format.std_formatter !typing_env name;
315			flush_stdout ();
316			phrases ppf rest
317			\| { descr = Ast.Directive (`Print_schema_type schema_ref) } :: rest ->
318			Typer.dump_schema_type Format.std_formatter schema_ref;
319			flush_stdout ();
320			phrases ppf rest
321	abate	553	\| { descr = Ast.Directive `Reinit_ns } :: rest ->
322	abate	686	Typer.set_ns_table_for_printer !typing_env;
323	abate	553	phrases ppf rest
324	abate	702	\| { descr = Ast.Directive `Help } :: rest ->
325			directive_help ppf;
326			phrases ppf rest
327	abate	746	\| { descr = Ast.Directive (`Dump pexpr) } :: rest ->
328			Format.fprintf ppf "%a@."
329			Value.dump_xml (Eval.eval !eval_env
330			(fst (Typer.type_expr !typing_env pexpr)));
331			phrases ppf rest
332	abate	431	\| [] -> ()
333	abate	90
334	abate	746	let catch_exn ppf_err exn =
335			if not catch_exceptions then raise exn;
336			match exn with
337	abate	698	\| (End_of_file \| Failure _ \| Not_found \| Invalid_argument _ \| Sys.Break)
338			as e ->
339			raise e
340			\| exn ->
341			print_exn ppf_err exn;
342			Format.fprintf ppf_err "@."
343
344			let parse rule input =
345	abate	792	try Parser.localize_exn (fun () -> rule input)
346			with e -> Parser.sync (); raise e
347	abate	698
348	abate	431	let run rule ppf ppf_err input =
349	abate	792	try phrases ppf (parse rule input); true
350	abate	698	with exn -> catch_exn ppf_err exn; false
351	abate	21
352	abate	431	let script = run Parser.prog
353	abate	446	let topinput = run Parser.top_phrases
354	abate	691
355	abate	723	let compile src out_dir =
356	abate	698	try
357	abate	723	if not (Filename.check_suffix src ".cd")
358			then raise (InvalidInputFilename src);
359			let cu = Filename.chop_suffix (Filename.basename src) ".cd" in
360			let out_dir =
361			match out_dir with
362			\| None -> Filename.dirname src
363			\| Some x -> x in
364			let out = Filename.concat out_dir (cu ^ ".cdo") in
365			let id = Types.CompUnit.mk (U.mk_latin1 cu) in
366			Librarian.compile id src;
367			Librarian.save id out;
368	abate	713	exit 0
369	abate	698	with exn -> catch_exn Format.err_formatter exn; exit 1
370
371			let compile_run src argv =
372	abate	713	try
373	abate	723	if not (Filename.check_suffix src ".cd")
374			then raise (InvalidInputFilename src);
375			let cu = Filename.chop_suffix (Filename.basename src) ".cd" in
376			let id = Types.CompUnit.mk (U.mk_latin1 cu) in
377			Librarian.compile id src;
378	abate	713	Librarian.run argv id
379			with exn -> catch_exn Format.err_formatter exn; exit 1
380	abate	698
381			let run obj argv =
382	abate	713	try
383	abate	724	if not (Filename.check_suffix obj ".cdo") \|\| (Filename.basename obj <> obj)
384	abate	723	then raise (InvalidObjectFilename obj);
385			let cu = Filename.chop_suffix (Filename.basename obj) ".cdo" in
386			let id = Types.CompUnit.mk (U.mk_latin1 cu) in
387	abate	713	Librarian.import id;
388			Librarian.run argv id
389			with exn -> catch_exn Format.err_formatter exn; exit 1
390	abate	698