diff options
Diffstat (limited to 'test-suite/bugs/closed/3315.v')
-rw-r--r-- | test-suite/bugs/closed/3315.v | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/3315.v b/test-suite/bugs/closed/3315.v new file mode 100644 index 000000000..1aebb5ad2 --- /dev/null +++ b/test-suite/bugs/closed/3315.v @@ -0,0 +1,36 @@ +Set Universe Polymorphism. +Set Primitive Projections. +Record sigT {A : Type} (P : A -> Type) := existT { projT1 : A; projT2 : P projT1 }. +Arguments existT {A} _ _ _. +Definition unpack_sigma' {A} {P : A -> Type} (Q : sigT P -> Type) (u : sigT P) : + Q (existT _ (projT1 u) (projT2 u)) -> Q u + := + fun H => + (let (x,p) as u return (Q (existT _ (projT1 u) (projT2 u)) -> Q u) := u in fun x : Q (existT _ _ p) => x) H. (* success *) +Definition unpack_sigma {A} {P : A -> Type} (Q : sigT P -> Type) (u : sigT P) : + Q (existT _ (projT1 u) (projT2 u)) -> Q u + := + fun H => + (let (x,p) as u return (Q (existT _ (projT1 u) (projT2 u)) -> Q u) := u in fun x => x) H. +(* Toplevel input, characters 219-229: +Error: +In environment +A : Type +P : A -> Type +Q : sigT P -> Type +u : sigT P +H : Q {| projT1 := projT1 u; projT2 := projT2 u |} +x : A +p : P x +The term + "fun + x : Q + {| + projT1 := projT1 {| projT1 := x; projT2 := p |}; + projT2 := projT2 {| projT1 := x; projT2 := p |} |} => x" has type + "Q + {| + projT1 := projT1 {| projT1 := x; projT2 := p |}; + projT2 := projT2 {| projT1 := x; projT2 := p |} |} -> +... " +*) |