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ocaml/experimental/garrigue/objvariant.diff

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? objvariants-3.09.1.diffs
? objvariants.diffs
Index: btype.ml
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/btype.ml,v
retrieving revision 1.37.4.1
diff -u -r1.37.4.1 btype.ml
--- btype.ml 5 Dec 2005 13:18:42 -0000 1.37.4.1
+++ btype.ml 16 Jan 2006 02:23:14 -0000
@@ -177,7 +177,8 @@
Tvariant row -> iter_row f row
| Tvar | Tunivar | Tsubst _ | Tconstr _ ->
Misc.may (fun (_,l) -> List.iter f l) row.row_name;
- List.iter f row.row_bound
+ List.iter f row.row_bound;
+ List.iter (fun (s,k,t) -> f t) row.row_object
| _ -> assert false
let iter_type_expr f ty =
@@ -224,7 +225,9 @@
| Some (path, tl) -> Some (path, List.map f tl) in
{ row_fields = fields; row_more = more;
row_bound = !bound; row_fixed = row.row_fixed && fixed;
- row_closed = row.row_closed; row_name = name; }
+ row_closed = row.row_closed; row_name = name;
+ row_object = List.map (fun (s,k,t) -> (s,k,f t)) row.row_object;
+ }
let rec copy_kind = function
Fvar{contents = Some k} -> copy_kind k
Index: ctype.ml
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/ctype.ml,v
retrieving revision 1.197.2.6
diff -u -r1.197.2.6 ctype.ml
--- ctype.ml 15 Dec 2005 02:28:38 -0000 1.197.2.6
+++ ctype.ml 16 Jan 2006 02:23:15 -0000
@@ -1421,7 +1421,7 @@
newgenty
(Tvariant
{row_fields = fields; row_closed = closed; row_more = newvar();
- row_bound = []; row_fixed = false; row_name = None })
+ row_bound = []; row_fixed = false; row_name = None; row_object=[]})
(**** Unification ****)
@@ -1724,8 +1724,11 @@
else None
in
let bound = row1.row_bound @ row2.row_bound in
+ let opairs, _, miss2 = associate_fields row1.row_object row2.row_object in
+ let row_object = row1.row_object @ miss2 in
let row0 = {row_fields = []; row_more = more; row_bound = bound;
- row_closed = closed; row_fixed = fixed; row_name = name} in
+ row_closed = closed; row_fixed = fixed; row_name = name;
+ row_object = row_object } in
let set_more row rest =
let rest =
if closed then
@@ -1758,6 +1761,18 @@
raise (Unify ((mkvariant [l,f1] true,
mkvariant [l,f2] true) :: trace)))
pairs;
+ List.iter (fun (s,_,ty1,_,ty2) -> unify env ty1 ty2) opairs;
+ if row_object <> [] then begin
+ List.iter
+ (fun (l,f) ->
+ match row_field_repr f with
+ Rpresent (Some ty) ->
+ let fi = build_fields generic_level row_object (newgenvar()) in
+ unify env (newgenty (Tobject (fi, ref None))) ty
+ | Rpresent None -> raise (Unify [])
+ | _ -> ())
+ (row_repr row1).row_fields
+ end;
with exn ->
log_type rm1; rm1.desc <- md1; log_type rm2; rm2.desc <- md2; raise exn
end
@@ -2789,7 +2804,8 @@
let row =
{ row_fields = List.map fst fields; row_more = newvar();
row_bound = !bound; row_closed = posi; row_fixed = false;
- row_name = if c > Unchanged then None else row.row_name }
+ row_name = if c > Unchanged then None else row.row_name;
+ row_object = [] }
in
(newty (Tvariant row), Changed)
| Tobject (t1, _) ->
Index: oprint.ml
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/oprint.ml,v
retrieving revision 1.22
diff -u -r1.22 oprint.ml
--- oprint.ml 23 Mar 2005 03:08:37 -0000 1.22
+++ oprint.ml 16 Jan 2006 02:23:15 -0000
@@ -185,7 +185,7 @@
fprintf ppf "@[<2>< %a >@]" (print_fields rest) fields
| Otyp_stuff s -> fprintf ppf "%s" s
| Otyp_var (ng, s) -> fprintf ppf "'%s%s" (if ng then "_" else "") s
- | Otyp_variant (non_gen, row_fields, closed, tags) ->
+ | Otyp_variant (non_gen, row_fields, closed, tags, obj) ->
let print_present ppf =
function
None | Some [] -> ()
@@ -198,12 +198,17 @@
ppf fields
| Ovar_name (id, tyl) ->
fprintf ppf "@[%a%a@]" print_typargs tyl print_ident id
+ and print_object ppf obj =
+ if obj <> [] then
+ fprintf ppf "@ as @[<2>< %a >@]" (print_fields (Some false)) obj
in
- fprintf ppf "%s[%s@[<hv>@[<hv>%a@]%a ]@]" (if non_gen then "_" else "")
+ fprintf ppf "%s[%s@[<hv>@[<hv>%a@]%a%a ]@]"
+ (if non_gen then "_" else "")
(if closed then if tags = None then " " else "< "
else if tags = None then "> " else "? ")
print_fields row_fields
print_present tags
+ print_object obj
| Otyp_alias _ | Otyp_poly _ | Otyp_arrow _ | Otyp_tuple _ as ty ->
fprintf ppf "@[<1>(%a)@]" print_out_type ty
| Otyp_abstract | Otyp_sum _ | Otyp_record _ | Otyp_manifest (_, _) -> ()
Index: outcometree.mli
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/outcometree.mli,v
retrieving revision 1.14
diff -u -r1.14 outcometree.mli
--- outcometree.mli 23 Mar 2005 03:08:37 -0000 1.14
+++ outcometree.mli 16 Jan 2006 02:23:15 -0000
@@ -59,6 +59,7 @@
| Otyp_var of bool * string
| Otyp_variant of
bool * out_variant * bool * (string list) option
+ * (string * out_type) list
| Otyp_poly of string list * out_type
and out_variant =
| Ovar_fields of (string * bool * out_type list) list
Index: printtyp.ml
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/printtyp.ml,v
retrieving revision 1.139.2.2
diff -u -r1.139.2.2 printtyp.ml
--- printtyp.ml 7 Dec 2005 23:37:27 -0000 1.139.2.2
+++ printtyp.ml 16 Jan 2006 02:23:15 -0000
@@ -244,7 +244,10 @@
visited_objects := px :: !visited_objects;
match row.row_name with
| Some(p, tyl) when namable_row row ->
- List.iter (mark_loops_rec visited) tyl
+ List.iter (mark_loops_rec visited) tyl;
+ if not (static_row row) then
+ List.iter (fun (s,k,t) -> mark_loops_rec visited t)
+ row.row_object
| _ ->
iter_row (mark_loops_rec visited) {row with row_bound = []}
end
@@ -343,25 +346,27 @@
| _ -> false)
fields in
let all_present = List.length present = List.length fields in
+ let static = row.row_closed && all_present in
+ let obj =
+ if static then [] else
+ List.map (fun (s,k,t) -> (s, tree_of_typexp sch t)) row.row_object
+ in
+ let tags = if all_present then None else Some (List.map fst present) in
begin match row.row_name with
| Some(p, tyl) when namable_row row ->
let id = tree_of_path p in
let args = tree_of_typlist sch tyl in
- if row.row_closed && all_present then
+ if static then
Otyp_constr (id, args)
else
let non_gen = is_non_gen sch px in
- let tags =
- if all_present then None else Some (List.map fst present) in
Otyp_variant (non_gen, Ovar_name(tree_of_path p, args),
- row.row_closed, tags)
+ row.row_closed, tags, obj)
| _ ->
- let non_gen =
- not (row.row_closed && all_present) && is_non_gen sch px in
+ let non_gen = not static && is_non_gen sch px in
let fields = List.map (tree_of_row_field sch) fields in
- let tags =
- if all_present then None else Some (List.map fst present) in
- Otyp_variant (non_gen, Ovar_fields fields, row.row_closed, tags)
+ Otyp_variant (non_gen, Ovar_fields fields, row.row_closed,
+ tags, obj)
end
| Tobject (fi, nm) ->
tree_of_typobject sch fi nm
Index: typecore.ml
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/typecore.ml,v
retrieving revision 1.176.2.2
diff -u -r1.176.2.2 typecore.ml
--- typecore.ml 11 Dec 2005 09:56:33 -0000 1.176.2.2
+++ typecore.ml 16 Jan 2006 02:23:15 -0000
@@ -170,7 +170,8 @@
(* Force check of well-formedness *)
unify_pat pat.pat_env pat
(newty(Tvariant{row_fields=[]; row_more=newvar(); row_closed=false;
- row_bound=[]; row_fixed=false; row_name=None}));
+ row_bound=[]; row_fixed=false; row_name=None;
+ row_object=[]}));
| _ -> ()
let rec iter_pattern f p =
@@ -251,7 +252,7 @@
let ty = may_map (build_as_type env) p' in
newty (Tvariant{row_fields=[l, Rpresent ty]; row_more=newvar();
row_bound=[]; row_name=None;
- row_fixed=false; row_closed=false})
+ row_fixed=false; row_closed=false; row_object=[]})
| Tpat_record lpl ->
let lbl = fst(List.hd lpl) in
if lbl.lbl_private = Private then p.pat_type else
@@ -318,7 +319,8 @@
([],[]) fields in
let row =
{ row_fields = List.rev fields; row_more = newvar(); row_bound = !bound;
- row_closed = false; row_fixed = false; row_name = Some (path, tyl) }
+ row_closed = false; row_fixed = false; row_name = Some (path, tyl);
+ row_object = [] }
in
let ty = newty (Tvariant row) in
let gloc = {loc with Location.loc_ghost=true} in
@@ -428,7 +430,8 @@
row_closed = false;
row_more = newvar ();
row_fixed = false;
- row_name = None } in
+ row_name = None;
+ row_object = [] } in
rp {
pat_desc = Tpat_variant(l, arg, row);
pat_loc = sp.ppat_loc;
@@ -976,7 +979,8 @@
row_bound = [];
row_closed = false;
row_fixed = false;
- row_name = None});
+ row_name = None;
+ row_object = []});
exp_env = env }
| Pexp_record(lid_sexp_list, opt_sexp) ->
let ty = newvar() in
@@ -1261,8 +1265,30 @@
assert false
end
| _ ->
- (Texp_send(obj, Tmeth_name met),
- filter_method env met Public obj.exp_type)
+ let obj, met_ty =
+ match expand_head env obj.exp_type with
+ {desc = Tvariant _} ->
+ let exp_ty = newvar () in
+ let met_ty = filter_method env met Public exp_ty in
+ let row =
+ {row_fields=[]; row_more=newvar();
+ row_bound=[]; row_closed=false;
+ row_fixed=false; row_name=None;
+ row_object=[met, Fpresent, met_ty]} in
+ unify_exp env obj (newty (Tvariant row));
+ let prim = Primitive.parse_declaration 1 ["%field1"] in
+ let ty = newty(Tarrow("", obj.exp_type, exp_ty, Cok)) in
+ let vd = {val_type = ty; val_kind = Val_prim prim} in
+ let esnd =
+ {exp_desc=Texp_ident(Path.Pident(Ident.create"snd"), vd);
+ exp_loc = Location.none; exp_type = ty; exp_env = env}
+ in
+ ({obj with exp_type = exp_ty;
+ exp_desc = Texp_apply(esnd,[Some obj, Required])},
+ met_ty)
+ | _ -> (obj, filter_method env met Public obj.exp_type)
+ in
+ (Texp_send(obj, Tmeth_name met), met_ty)
in
if !Clflags.principal then begin
end_def ();
Index: types.ml
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/types.ml,v
retrieving revision 1.25
diff -u -r1.25 types.ml
--- types.ml 9 Dec 2004 12:40:53 -0000 1.25
+++ types.ml 16 Jan 2006 02:23:15 -0000
@@ -44,7 +44,9 @@
row_bound: type_expr list;
row_closed: bool;
row_fixed: bool;
- row_name: (Path.t * type_expr list) option }
+ row_name: (Path.t * type_expr list) option;
+ row_object: (string * field_kind * type_expr) list;
+ }
and row_field =
Rpresent of type_expr option
Index: types.mli
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/types.mli,v
retrieving revision 1.25
diff -u -r1.25 types.mli
--- types.mli 9 Dec 2004 12:40:53 -0000 1.25
+++ types.mli 16 Jan 2006 02:23:15 -0000
@@ -43,7 +43,9 @@
row_bound: type_expr list;
row_closed: bool;
row_fixed: bool;
- row_name: (Path.t * type_expr list) option }
+ row_name: (Path.t * type_expr list) option;
+ row_object: (string * field_kind * type_expr) list;
+ }
and row_field =
Rpresent of type_expr option
Index: typetexp.ml
===================================================================
RCS file: /net/yquem/devel/caml/repository/csl/typing/typetexp.ml,v
retrieving revision 1.54
diff -u -r1.54 typetexp.ml
--- typetexp.ml 22 Jul 2005 06:42:36 -0000 1.54
+++ typetexp.ml 16 Jan 2006 02:23:15 -0000
@@ -215,7 +215,8 @@
in
let row = { row_closed = true; row_fields = fields;
row_bound = !bound; row_name = Some (path, args);
- row_fixed = false; row_more = newvar () } in
+ row_fixed = false; row_more = newvar ();
+ row_object = [] } in
let static = Btype.static_row row in
let row =
if static then row else
@@ -262,7 +263,7 @@
let mkfield l f =
newty (Tvariant {row_fields=[l,f]; row_more=newvar();
row_bound=[]; row_closed=true;
- row_fixed=false; row_name=None}) in
+ row_fixed=false; row_name=None; row_object=[]}) in
let add_typed_field loc l f fields =
try
let f' = List.assoc l fields in
@@ -345,7 +346,7 @@
let row =
{ row_fields = List.rev fields; row_more = newvar ();
row_bound = !bound; row_closed = closed;
- row_fixed = false; row_name = !name } in
+ row_fixed = false; row_name = !name; row_object = [] } in
let static = Btype.static_row row in
let row =
if static then row else
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