diff options
| author |  Matthieu Sozeau <matthieu.sozeau@inria.fr> | 2015-09-30 18:30:44 +0200 |
|---|---|---|
| committer |  Matthieu Sozeau <mattam@mattam.org> | 2015-10-02 15:54:12 +0200 |
| commit | e5cbf1ef44449f60eec3bb3c52d08b2943283279 (patch) | |
| tree | 14986335359c4c4385c1b65b887f757e3a520591 /kernel/subtyping.ml | |
| parent | 2dc998e153922fffa907342871917963ad421e45 (diff) | |
Univs: fix subtyping of polymorphic parameters.
Diffstat (limited to 'kernel/subtyping.ml')
| -rw-r--r-- | kernel/subtyping.ml | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/subtyping.ml b/kernel/subtyping.ml index db155e6c8..463e28a1c 100644 --- a/kernel/subtyping.ml +++ b/kernel/subtyping.ml @@ -311,9 +311,12 @@ let check_constant cst env mp1 l info1 cb2 spec2 subst1 subst2 = try (* The environment with the expected universes plus equality of the body instances with the expected instance *) - let env = Environ.add_constraints cstrs env in - (* Check that the given definition does not add any constraint over - the expected ones, so that it can be used in place of the original. *) + let ctxi = Univ.Instance.append inst1 inst2 in + let ctx = Univ.UContext.make (ctxi, cstrs) in + let env = Environ.push_context ctx env in + (* Check that the given definition does not add any constraint over + the expected ones, so that it can be used in place of + the original. *) if Univ.check_constraints ctx1 (Environ.universes env) then cstrs, env, inst2 else error (IncompatibleConstraints ctx1) |