2 ||M|| This file is part of HELM, an Hypertextual, Electronic
3 ||A|| Library of Mathematics, developed at the Computer Science
4 ||T|| Department, University of Bologna, Italy.
6 ||T|| HELM is free software; you can redistribute it and/or
7 ||A|| modify it under the terms of the GNU General Public License
8 \ / version 2 or (at your option) any later version.
9 \ / This software is distributed as is, NO WARRANTY.
10 V_______________________________________________________________ *)
16 module BE = BrgEnvironment
17 module BR = BrgReduction
19 module BV = BrgValidity
21 (* Interface functions ******************************************************)
26 let type_check err f st = function
27 | ra, na, uri, E.Abst t ->
28 let err msg = err (L.Uri uri :: msg) in
30 let e = BE.set_entity (ra, na, uri, E.Abst xt) in f tt e
32 BT.type_of err f st BR.empty_rtm t
33 | ra, na, uri, E.Abbr t ->
34 let err msg = err (L.Uri uri :: msg) in
36 let xt = match xt with
38 | _ -> B.Cast (tt, xt)
40 let e = BE.set_entity (ra, na, uri, E.Abbr xt) in f tt e
42 BT.type_of err f st BR.empty_rtm t
43 | _, _, _, E.Void -> assert false
47 let validate err f st e =
48 let uri, t = match e with
49 | _, _, uri, E.Abst t -> uri, t
50 | _, _, uri, E.Abbr t -> uri, t
51 | _, _, _, E.Void -> assert false
53 let err msg = err (L.Uri uri :: msg) in
54 let f () = let _ = BE.set_entity e in f () in
55 BV.validate err f st BR.empty_rtm t