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authorGravatar Matthieu Sozeau <matthieu.sozeau@inria.fr>2014-10-02 23:48:23 +0200
committerGravatar Matthieu Sozeau <matthieu.sozeau@inria.fr>2014-10-02 23:57:22 +0200
commita0e47bcf277d11ec7d2272bc5167fee898ad9016 (patch)
treee4323e150457f947400cd26c84ef294f33c1da97 /kernel/modops.mli
parent0c320e79ba30bf567d4ca194bc114d733baf76e5 (diff)
Implement module subtyping for polymorphic constants (errors on
inductives). The implementation constant should have the a universe instance of the same length, we assume the universes are in the same order and we check that the definition does not add any constraints to the expected ones. This fixes bug #3670.
Diffstat (limited to 'kernel/modops.mli')
-rw-r--r--kernel/modops.mli5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/modops.mli b/kernel/modops.mli
index a71e28d6e..63d71a566 100644
--- a/kernel/modops.mli
+++ b/kernel/modops.mli
@@ -94,6 +94,7 @@ type signature_mismatch_error =
| NotConvertibleConstructorField of Id.t
| NotConvertibleBodyField
| NotConvertibleTypeField of env * types * types
+ | PolymorphicStatusExpected of bool
| NotSameConstructorNamesField
| NotSameInductiveNameInBlockField
| FiniteInductiveFieldExpected of bool
@@ -103,6 +104,10 @@ type signature_mismatch_error =
| RecordProjectionsExpected of Name.t list
| NotEqualInductiveAliases
| NoTypeConstraintExpected
+ | IncompatibleInstances
+ | IncompatibleUniverses of Univ.univ_inconsistency
+ | IncompatiblePolymorphism of env * types * types
+ | IncompatibleConstraints of Univ.constraints
type module_typing_error =
| SignatureMismatch of