Merge PR #11424: Check instance length in type_of_{inductive,constructor}

Reviewed-by: ppedrot

2 files changed, 19 insertions, 0 deletions

diff --git a/test-suite/output/PrintAssumptions.out b/test-suite/output/PrintAssumptions.out
index 3f4d5ef58c..190c34262f 100644
--- a/test-suite/output/PrintAssumptions.out
+++ b/test-suite/output/PrintAssumptions.out
@@ -3,6 +3,10 @@ foo : nat
 Axioms:
 foo : nat
 Axioms:
+bli : Type
+Axioms:
+bli : Type
+Axioms:
 extensionality : forall (P Q : Type) (f g : P -> Q),
                  (forall x : P, f x = g x) -> f = g
 Axioms:
diff --git a/test-suite/output/PrintAssumptions.v b/test-suite/output/PrintAssumptions.v
index 3d4dfe603d..4c980fddba 100644
--- a/test-suite/output/PrintAssumptions.v
+++ b/test-suite/output/PrintAssumptions.v
@@ -30,6 +30,21 @@ Module P := N M.
 Print Assumptions M.bar. (* Should answer: foo *)
 Print Assumptions P.bar. (* Should answer: foo *)
 
+(* Print Assumptions used empty instances on polymorphic inductives *)
+Module Poly.
+
+  Set Universe Polymorphism.
+  Axiom bli : Type.
+
+  Definition bla := bli -> bli.
+
+  Inductive blo : bli -> Type := .
+
+  Print Assumptions bla.
+  Print Assumptions blo.
+
+End Poly.
+
 
 (* The original test-case of the bug-report *)