1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
(*
Stephen Weeks found this bug in which a type error results in a crash.
Now fixed by checking each top-level declaration rather than the topdec
as a whole.
*)
(* This should give a type error rather than crashing. *)
val b = ref false
val r = ref NONE
functor F (type t
val x: t
val f: t -> string) =
struct
val _ =
if !b
then print (concat [f (valOf (! r)), "\n"])
else (b := true; r := SOME x)
end
structure S = F (type t = int
val x = 13
val f = Int.toString)
structure S = F (type t = real
val x = 13.0
val f = Real.toString);
|
