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(* TEST_BELOW
(* Blank lines added here to preserve locations. *)
*)
type expr =
[ `Abs of string * expr
| `App of expr * expr
]
class type exp =
object
method eval : (string, exp) Hashtbl.t -> expr
end;;
class app e1 e2 : exp =
object
val l = e1
val r = e2
method eval env =
match l with
| `Abs(var,body) ->
Hashtbl.add env var r;
body
| _ -> `App(l,r);
end
(* TEST
flags = " -w -a ";
ocamlc_byte_exit_status = "2";
setup-ocamlc.byte-build-env;
ocamlc.byte;
check-ocamlc.byte-output;
*)
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