diff options
Diffstat (limited to 'compiler/Values.ml')
| -rw-r--r-- | compiler/Values.ml | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/compiler/Values.ml b/compiler/Values.ml index 6af59087..e737103a 100644 --- a/compiler/Values.ml +++ b/compiler/Values.ml @@ -920,9 +920,29 @@ type abs_kind = See the explanations for [SynthInput]. *) - | Loop of LoopId.id (** The abstraction corresponds to a loop *) + | Loop of (LoopId.id * RegionGroupId.id option) + (** The abstraction corresponds to a loop. + + The region group id is initially [None]. + After we computed a fixed point, we give a unique region group + identifier for each loop abstraction. + *) [@@deriving show, ord] +(** Ancestor for {!abs} iter visitor *) +class ['self] iter_abs_base = + object (_self : 'self) + inherit [_] iter_typed_avalue + method visit_abs_kind : 'env -> abs_kind -> unit = fun _ _ -> () + end + +(** Ancestor for {!abs} map visitor *) +class ['self] map_abs_base = + object (_self : 'self) + inherit [_] map_typed_avalue + method visit_abs_kind : 'env -> abs_kind -> abs_kind = fun _ x -> x + end + (** Abstractions model the parts in the borrow graph where the borrowing relations have been abstracted because of a function call. @@ -931,8 +951,8 @@ type abs_kind = *) type abs = { abs_id : abstraction_id; - kind : (abs_kind[@opaque]); - can_end : (bool[@opaque]); + kind : abs_kind; + can_end : bool; (** Controls whether the region can be ended or not. This allows to "pin" some regions, and is useful when generating @@ -959,7 +979,7 @@ type abs = { { name = "iter_abs"; variety = "iter"; - ancestors = [ "iter_typed_avalue" ]; + ancestors = [ "iter_abs_base" ]; nude = true (* Don't inherit {!VisitorsRuntime.iter} *); concrete = true; }, @@ -967,7 +987,7 @@ type abs = { { name = "map_abs"; variety = "map"; - ancestors = [ "map_typed_avalue" ]; + ancestors = [ "map_abs_base" ]; nude = true (* Don't inherit {!VisitorsRuntime.iter} *); concrete = true; }] |