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| author | David Terei <davidterei@gmail.com> | 2011-07-20 11:09:03 -0700 |
|---|---|---|
| committer | David Terei <davidterei@gmail.com> | 2011-07-20 11:26:35 -0700 |
| commit | 16514f272fb42af6e9c7674a9bd6c9dce369231f (patch) | |
| tree | e4f332b45fe65e2a7a2451be5674f887b42bf199 /testsuite/tests/indexed-types/should_compile/T2850.hs | |
| parent | ebd422aed41048476aa61dd4c520d43becd78682 (diff) | |
| download | haskell-16514f272fb42af6e9c7674a9bd6c9dce369231f.tar.gz | |
Move tests from tests/ghc-regress/* to just tests/*
Diffstat (limited to 'testsuite/tests/indexed-types/should_compile/T2850.hs')
| -rw-r--r-- | testsuite/tests/indexed-types/should_compile/T2850.hs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/testsuite/tests/indexed-types/should_compile/T2850.hs b/testsuite/tests/indexed-types/should_compile/T2850.hs new file mode 100644 index 0000000000..bdb423b6eb --- /dev/null +++ b/testsuite/tests/indexed-types/should_compile/T2850.hs @@ -0,0 +1,21 @@ +{-# LANGUAGE GeneralizedNewtypeDeriving, TypeFamilies, FlexibleContexts, FlexibleInstances #-}
+
+module T2850 where
+
+class K a where
+ bar :: a -> a
+
+class K (B a) => M a where
+ data B a :: *
+ foo :: B a -> B a
+
+instance M Bool where
+ data B Bool = B1Bool Bool | B2Bool Bool
+ foo = id
+
+instance K (B Bool) where
+ bar = id
+
+instance M Int where
+ newtype B Int = BInt (B Bool) deriving K
+ foo = id
|