diff options
Diffstat (limited to 'kernel/subtyping.ml')
| -rw-r--r-- | kernel/subtyping.ml | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/subtyping.ml b/kernel/subtyping.ml index d64342dbb0..347c30dd64 100644 --- a/kernel/subtyping.ml +++ b/kernel/subtyping.ml @@ -93,10 +93,8 @@ let check_conv_error error why cst poly f env a1 a2 = | Univ.UniverseInconsistency e -> error (IncompatibleUniverses e) let check_polymorphic_instance error env auctx1 auctx2 = - if not (Univ.AUContext.size auctx1 == Univ.AUContext.size auctx2) then - error IncompatibleInstances - else if not (UGraph.check_subtype (Environ.universes env) auctx2 auctx1) then - error (IncompatibleConstraints auctx1) + if not (UGraph.check_subtype (Environ.universes env) auctx2 auctx1) then + error (IncompatibleConstraints { got = auctx1; expect = auctx2; } ) else Environ.push_context ~strict:false (Univ.AUContext.repr auctx2) env |