diff options
| author |  Pierre-Marie Pédrot <pierre-marie.pedrot@inria.fr> | 2015-12-04 21:46:12 +0100 |
|---|---|---|
| committer | Pierre-Marie Pédrot <pierre-marie.pedrot@inria.fr> | 2015-12-04 21:55:31 +0100 |
| commit | 153d77d00ccbacf22aa5d70ca2c1cacab2749339 (patch) | |
| tree | 98997d190ad1b45f3096473c1015feae55b64efe /lib/future.ml | |
| parent | 0aba678e885fa53fa649de59eb1d06b4af3a847c (diff) | |
Specializing the Dyn module to each usecase.
Actually, we never mix the various uses of each dynamic type created through
the Dyn module. To enforce this statically, we functorize the Dyn module so
that we recover a fresh instance at each use point.
Diffstat (limited to 'lib/future.ml')
| -rw-r--r-- | lib/future.ml | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/future.ml b/lib/future.ml index 78a158264..b6012ed20 100644 --- a/lib/future.ml +++ b/lib/future.ml @@ -7,8 +7,9 @@ (************************************************************************) (* To deal with side effects we have to save/restore the system state *) -let freeze = ref (fun () -> assert false : unit -> Dyn.t) -let unfreeze = ref (fun _ -> () : Dyn.t -> unit) +type freeze +let freeze = ref (fun () -> assert false : unit -> freeze) +let unfreeze = ref (fun _ -> () : freeze -> unit) let set_freeze f g = freeze := f; unfreeze := g let not_ready_msg = ref (fun name -> @@ -58,7 +59,7 @@ type 'a assignement = [ `Val of 'a | `Exn of Exninfo.iexn | `Comp of 'a computat and 'a comp = | Delegated of (unit -> unit) | Closure of (unit -> 'a) - | Val of 'a * Dyn.t option + | Val of 'a * freeze option | Exn of Exninfo.iexn (* Invariant: this exception is always "fixed" as in fix_exn *) and 'a comput = |