Ticket #2824: Foo.hs
| File Foo.hs, 430 bytes (added by jcheney, 4 years ago) |
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| Line | |
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| 1 | {-# LANGUAGE UndecidableInstances #-} |
| 2 | {-# LANGUAGE FlexibleInstances #-} |
| 3 | {-# LANGUAGE MultiParamTypeClasses #-} |
| 4 | {-# LANGUAGE TemplateHaskell #-} |
| 5 | |
| 6 | -- "causes" the problem |
| 7 | ---{-# LANGUAGE Generics #-} |
| 8 | |
| 9 | module Foo where |
| 10 | |
| 11 | import Data.Generics.SYB.WithClass.Basics |
| 12 | import Data.Generics.SYB.WithClass.Context |
| 13 | import Data.Generics.SYB.WithClass.Instances() |
| 14 | import Data.Generics.SYB.WithClass.Derive |
| 15 | |
| 16 | |
| 17 | data Foo = Foo |
| 18 | $(derive [''Foo]) |
| 19 |
