diff options
Diffstat (limited to 'engine/evd.ml')
| -rw-r--r-- | engine/evd.ml | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/engine/evd.ml b/engine/evd.ml index 899f935489..5d50472696 100644 --- a/engine/evd.ml +++ b/engine/evd.ml @@ -145,6 +145,7 @@ sig val make : econstr list -> t val none : unit -> t val repr : named_context_val -> Filter.t -> t -> econstr list + val is_identity : econstr list -> t -> bool end = struct type t = econstr list option ref @@ -155,6 +156,9 @@ struct let fsign = Filter.filter_list filter (named_context_of_val sign) in List.map (NamedDecl.get_id %> mkVar) fsign | Some s -> s + let is_identity l s = match !s with + | None -> false + | Some s -> s == l end (* The kinds of existential variables are now defined in [Evar_kinds] *) @@ -281,7 +285,9 @@ let evar_instance_array test_id info args = instrec filter (evar_context info) args let make_evar_instance_array info args = - evar_instance_array (NamedDecl.get_id %> isVarId) info args + if Identity.is_identity args info.evar_identity then [] + else + evar_instance_array (NamedDecl.get_id %> isVarId) info args let instantiate_evar_array info c args = let inst = make_evar_instance_array info args in |