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authorGravatar Matthieu Sozeau <matthieu.sozeau@inria.fr>2017-11-20 18:43:31 +0100
committerGravatar Matthieu Sozeau <mattam@mattam.org>2017-11-22 11:14:46 +0100
commit2db70092d63065be8a5902764e0d1d5f1ea01e6c (patch)
tree478c124734b6444141378a1df22488f77b2102c7 /engine/uState.mli
parent2a857da2a88855a6c9f0fa7e48a8700c1613e0c7 (diff)
Fix universe polymorphic Program obligations.
The universes of the obligations should all be non-algebraic as they might appear in instances of other obligations and instances only take non-algebraic universes as arguments.
Diffstat (limited to 'engine/uState.mli')
-rw-r--r--engine/uState.mli5
1 files changed, 5 insertions, 0 deletions
diff --git a/engine/uState.mli b/engine/uState.mli
index b31e94b28..1c906fcb2 100644
--- a/engine/uState.mli
+++ b/engine/uState.mli
@@ -104,6 +104,11 @@ val add_global_univ : t -> Univ.Level.t -> t
universe. Otherwise the variable is just made flexible. *)
val make_flexible_variable : t -> algebraic:bool -> Univ.Level.t -> t
+(** Turn all undefined flexible algebraic variables into simply flexible
+ ones. Can be used in case the variables might appear in universe instances
+ (typically for polymorphic program obligations). *)
+val make_flexible_nonalgebraic : t -> t
+
val is_sort_variable : t -> Sorts.t -> Univ.Level.t option
val normalize_variables : t -> Univ.universe_subst * t