blob: 436bb76ca2e392e1f69647a6f2630eb8398fa295 (
plain)
1
2
3
4
5
6
|
gadtSyntaxFail003.hs:7:5:
Data constructor `C1' has existential type variables, a context, or a specialised result type
(Use -XExistentialQuantification or -XGADTs to allow this)
In the definition of data constructor `C1'
In the data type declaration for `Foo'
|