From 5b8b02cd060097c3c980b0498257c30eda1ad207 Mon Sep 17 00:00:00 2001 From: Gaëtan Gilbert Date: Tue, 5 Dec 2017 20:22:14 +0100 Subject: Fix #6323: stronger restrict universe context vs abstract. In the test we do [let X : Type@{i} := Set in ...] with Set abstracted. The constraint [Set < i] was lost in the abstract. Universes of a monomorphic reference [c] are considered to appear in the term [c]. --- vernac/classes.ml | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'vernac/classes.ml') diff --git a/vernac/classes.ml b/vernac/classes.ml index cb1d2f7c7..3e47f881c 100644 --- a/vernac/classes.ml +++ b/vernac/classes.ml @@ -114,9 +114,10 @@ let instance_hook k info global imps ?hook cst = let declare_instance_constant k info global imps ?hook id decl poly evm term termtype = let kind = IsDefinition Instance in - let evm = - let levels = Univ.LSet.union (Univops.universes_of_constr termtype) - (Univops.universes_of_constr term) in + let evm = + let env = Global.env () in + let levels = Univ.LSet.union (Univops.universes_of_constr env termtype) + (Univops.universes_of_constr env term) in Evd.restrict_universe_context evm levels in let uctx = Evd.check_univ_decl ~poly evm decl in -- cgit v1.2.3