mirror of
https://github.com/idris-lang/Idris2.git
synced 2024-12-21 02:31:50 +03:00
49 lines
955 B
Idris
49 lines
955 B
Idris
data Foo : Type where [noHints]
|
|
A : Foo
|
|
B : Foo
|
|
|
|
findA : {auto foo : Foo} -> String
|
|
findA {foo = A} = "Found an A"
|
|
findA {foo = _} = "Failed to find an A"
|
|
|
|
Baz : String -> Type
|
|
Baz s = s = "Found an A"
|
|
|
|
baz : (s : String ** Baz s)
|
|
baz = let %hint arg : Foo
|
|
arg = A
|
|
in (findA ** Refl)
|
|
|
|
interface Gnu where
|
|
constructor MkGnu
|
|
hasFoo : Foo
|
|
|
|
findB : Gnu => String
|
|
findB = case hasFoo of
|
|
B => "Found a B"
|
|
_ => "Failed to find a B"
|
|
|
|
Bar : String -> Type
|
|
Bar s = s = "Found a B"
|
|
|
|
bar : (s : String ** Bar s)
|
|
bar = let %hint arg : Gnu
|
|
arg = MkGnu B
|
|
in (findB ** Refl)
|
|
|
|
interface Gnat a where
|
|
constructor MkGnat
|
|
makeFoo : a -> Foo
|
|
|
|
record More where
|
|
constructor MkMore
|
|
0 Ty : Type
|
|
|
|
%unbound_implicits off
|
|
bug : forall a . a -> (s : String ** Bar s)
|
|
bug {a} x = let M : More
|
|
M = MkMore a
|
|
%hint arg : Gnat (Ty M)
|
|
arg = MkGnat (const B)
|
|
in (findB ** Refl)
|