From f72a67569ec8cb9160d161699302b67919da5686 Mon Sep 17 00:00:00 2001 From: Matthieu Sozeau Date: Thu, 27 Jul 2017 14:54:41 +0200 Subject: Allow declaring universe constraints at definition level. Introduce a "+" modifier for universe and constraint declarations to indicate that these can be extended in the final definition/proof. By default [Definition f] is equivalent to [Definition f@{+|+}], i.e universes can be introduced and constraints as well. For [f@{}] or [f@{i j}], the constraints can be extended, no universe introduced, to maintain compatibility with existing developments. Use [f@{i j | }] to indicate that no constraint (nor universe) can be introduced. These kind of definitions could benefit from asynchronous processing. Declarations of universe binders and constraints also works for monomorphic definitions. --- engine/uState.mli | 3 +++ 1 file changed, 3 insertions(+) (limited to 'engine/uState.mli') diff --git a/engine/uState.mli b/engine/uState.mli index d198fbfbe..ba0305869 100644 --- a/engine/uState.mli +++ b/engine/uState.mli @@ -44,6 +44,9 @@ val subst : t -> Universes.universe_opt_subst val ugraph : t -> UGraph.t (** The current graph extended with the local constraints *) +val initial_graph : t -> UGraph.t +(** The initial graph with just the declarations of new universes. *) + val algebraics : t -> Univ.LSet.t (** The subset of unification variables that can be instantiated with algebraic universes as they appear in inferred types only. *) -- cgit v1.2.3