(* kernel version: basic, relative, global *)
(* note : ufficial basic lambda-delta *)
-type uri = Item.uri
-type id = Item.id
+type uri = Entity.uri
+type id = Entity.id
+type attrs = Entity.attrs
-type attr = Name of bool * id (* real?, name *)
- | Apix of int (* additional position index *)
-
-type attrs = attr list
-
-type bind = Void (* exclusion *)
- | Abst of term (* abstraction *)
- | Abbr of term (* abbreviation *)
+type bind = Void of attrs (* attrs *)
+ | Abst of attrs * term (* attrs, type *)
+ | Abbr of attrs * term (* attrs, body *)
and term = Sort of attrs * int (* attrs, hierarchy index *)
| LRef of attrs * int (* attrs, position index *)
| GRef of attrs * uri (* attrs, reference *)
| Cast of attrs * term * term (* attrs, type, term *)
| Appl of attrs * term * term (* attrs, argument, function *)
- | Bind of attrs * bind * term (* attrs, binder, scope *)
+ | Bind of bind * term (* binder, scope *)
-type obj = bind Item.obj (* age, uri, binder *)
+type entity = term Entity.entity (* attrs, uri, binder *)
-type item = bind Item.item
+type lenv = Null
+(* Cons: tail, relative local environment, binder *)
+ | Cons of lenv * lenv option * bind
-type context = Null
-(* Cons: tail, relative context, attrs, binder *)
- | Cons of context * context option * attrs * bind
+(* helpers ******************************************************************)
-type message = (context, term) Log.item list
+let mk_uri root s =
+ String.concat "/" ["ld:"; "brg"; root; s ^ ".ld"]
(* Currified constructors ***************************************************)
-let abst w = Abst w
+let abst a w = Abst (a, w)
-let abbr v = Abbr v
+let abbr a v = Abbr (a, v)
let lref a i = LRef (a, i)
let appl a u t = Appl (a, u, t)
-let bind a b t = Bind (a, b, t)
+let bind b t = Bind (b, t)
-let bind_abst a u t = Bind (a, Abst u, t)
+let bind_abst a u t = Bind (Abst (a, u), t)
-let bind_abbr a v t = Bind (a, Abbr v, t)
+let bind_abbr a v t = Bind (Abbr (a, v), t)
-(* context handling functions ***********************************************)
+(* local environment handling functions *************************************)
-let empty_context = Null
+let empty_lenv = Null
-let push f es ?c a b =
- let es = Cons (es, c, a, b) in f es
+let push f es ?c b =
+ let es = Cons (es, c, b) in f es
let get err f es i =
let rec aux j = function
- | Null -> err i
- | Cons (tl, None, a, b) when j = 0 -> f tl a b
- | Cons (_, Some c, a, b) when j = 0 -> f c a b
- | Cons (tl, _, _, _) -> aux (pred j) tl
+ | Null -> err ()
+ | Cons (tl, None, b) when j = 0 -> f tl b
+ | Cons (_, Some c, b) when j = 0 -> f c b
+ | Cons (tl, _, _) -> aux (pred j) tl
in
aux i es
let rec rev_iter f map = function
- | Null -> f ()
- | Cons (tl, None, a, b) ->
- let f () = map f tl a b in rev_iter f map tl
- | Cons (tl, Some c, a, b) ->
- let f () = map f c a b in rev_iter f map tl
+ | Null -> f ()
+ | Cons (tl, None, b) ->
+ let f _ = map f tl b in rev_iter f map tl
+ | Cons (tl, Some c, b) ->
+ let f _ = map f c b in rev_iter f map tl
let rec fold_left f map x = function
- | Null -> f x
- | Cons (tl, _, a, b) ->
+ | Null -> f x
+ | Cons (tl, _, b) ->
let f x = fold_left f map x tl in
- map f x a b
-
-let rec name err f = function
- | [] -> err ()
- | Name (r, n) :: _ -> f n r
- | _ :: tl -> name err f tl
-
-let rec apix err f = function
- | [] -> err ()
- | Apix i :: _ -> f i
- | _ :: tl -> apix err f tl
+ map f x b