diff options
Diffstat (limited to 'engine/uState.ml')
| -rw-r--r-- | engine/uState.ml | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/engine/uState.ml b/engine/uState.ml index 01a479821..123b64314 100644 --- a/engine/uState.ml +++ b/engine/uState.ml @@ -11,20 +11,8 @@ open CErrors open Util open Names -module StringOrd = struct type t = string let compare = String.compare end -module UNameMap = struct +module UNameMap = String.Map - include Map.Make(StringOrd) - - let union s t = - if s == t then s - else - merge (fun k l r -> - match l, r with - | Some _, _ -> l - | _, _ -> r) s t -end - type uinfo = { uname : string option; uloc : Loc.t option; @@ -59,12 +47,20 @@ let is_empty ctx = Univ.ContextSet.is_empty ctx.uctx_local && Univ.LMap.is_empty ctx.uctx_univ_variables +let uname_union s t = + if s == t then s + else + UNameMap.merge (fun k l r -> + match l, r with + | Some _, _ -> l + | _, _ -> r) s t + let union ctx ctx' = if ctx == ctx' then ctx else if is_empty ctx' then ctx else let local = Univ.ContextSet.union ctx.uctx_local ctx'.uctx_local in - let names = UNameMap.union (fst ctx.uctx_names) (fst ctx'.uctx_names) in + let names = uname_union (fst ctx.uctx_names) (fst ctx'.uctx_names) in let newus = Univ.LSet.diff (Univ.ContextSet.levels ctx'.uctx_local) (Univ.ContextSet.levels ctx.uctx_local) in let newus = Univ.LSet.diff newus (Univ.LMap.domain ctx.uctx_univ_variables) in |