blob: 63eaa382dc05f8ba4aca95ee2f6ac61a573abb58 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
Set Universe Polymorphism.
(** Tests for module subtyping of polymorphic terms *)
Module Type S.
Section Foo.
Universes i j.
Constraint i <= j.
Parameter foo : Type@{i} -> Type@{j}.
End Foo.
End S.
(** Same constraints *)
Module OK_1.
Definition foo@{i j} (A : Type@{i}) : Type@{j} := A.
End OK_1.
Module OK_1_Test : S := OK_1.
(** More general constraints *)
Module OK_2.
Inductive X@{i} : Type@{i} :=.
Definition foo@{i j} (A : Type@{i}) : Type@{j} := X@{j}.
End OK_2.
Module OK_2_Test : S := OK_2.
(** Wrong instance length *)
Module KO_1.
Definition foo@{i} (A : Type@{i}) : Type@{i} := A.
End KO_1.
Fail Module KO_Test_1 : S := KO_1.
(** Less general constraints *)
Module KO_2.
Section Foo.
Universe i j.
Constraint i < j.
Definition foo (A : Type@{i}) : Type@{j} := A.
End Foo.
End KO_2.
Fail Module KO_Test_2 : S := KO_2.
(** Less general constraints *)
Module KO_3.
Section Foo.
Universe i j.
Constraint i = j.
Definition foo (A : Type@{i}) : Type@{j} := A.
End Foo.
End KO_3.
Fail Module KO_Test_3 : S := KO_3.
|