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authorManuel M T Chakravarty <chak@cse.unsw.edu.au>2008-10-02 05:50:02 +0000
committerManuel M T Chakravarty <chak@cse.unsw.edu.au>2008-10-02 05:50:02 +0000
commit5bbdbfa2ded52f3c41cb501288d696b0de05a0a6 (patch)
tree35d777644a95771ae5c666ef8246f2e0ee03e76c /testsuite/tests/ghc-regress/indexed-types/should_compile/T2291.hs
parent21607c1615cfbaaf18ac36782140ec7575c7c98b (diff)
downloadhaskell-5bbdbfa2ded52f3c41cb501288d696b0de05a0a6.tar.gz
TFs: T2291
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diff --git a/testsuite/tests/ghc-regress/indexed-types/should_compile/T2291.hs b/testsuite/tests/ghc-regress/indexed-types/should_compile/T2291.hs
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+++ b/testsuite/tests/ghc-regress/indexed-types/should_compile/T2291.hs
@@ -0,0 +1,15 @@
+{-# OPTIONS_GHC -fglasgow-exts #-}
+module Small where
+
+class CoCCC k where
+ type Coexp k :: * -> * -> *
+ type Sum k :: * -> * -> *
+ coapply :: k b (Sum k (Coexp k a b) a)
+ cocurry :: k c (Sum k a b) -> k (Coexp k b c) a
+ uncocurry :: k (Coexp k b c) a -> k c (Sum k a b)
+
+{-# RULES
+"cocurry coapply" cocurry coapply = id
+"cocurry . uncocurry" cocurry . uncocurry = id
+"uncocurry . cocurry" uncocurry . cocurry = id
+ #-}