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| author |  Matthieu Sozeau <mattam@mattam.org> | 2017-07-27 14:54:41 +0200 |
|---|---|---|
| committer | Matthieu Sozeau <mattam@mattam.org> | 2017-09-19 10:28:03 +0200 |
| commit | f72a67569ec8cb9160d161699302b67919da5686 (patch) | |
| tree | a86642e048c3ac571829e6b1eb6f3d53a34d3db0 /engine/uState.mli | |
| parent | fc587e75d2d5d6e67365a9bc3a13ba5c86aba87b (diff) | |
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.
Diffstat (limited to 'engine/uState.mli')
| -rw-r--r-- | engine/uState.mli | 3 |
1 files changed, 3 insertions, 0 deletions
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. *) |