blob: f144b2e24785b72ff8f20df2b9f73c2d949b0900 (
plain)
1
2
3
4
5
6
7
|
gadtSyntaxFail002.hs:9:5: error:
• Data constructor ‘C2’ has existential type variables, a context, or a specialised result type
C2 :: forall a. a -> Char -> Foo a a
(Enable ExistentialQuantification or GADTs to allow this)
• In the definition of data constructor ‘C2’
In the data type declaration for ‘Foo’
|
