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authorDavid Terei <davidterei@gmail.com>2011-07-20 11:09:03 -0700
committerDavid Terei <davidterei@gmail.com>2011-07-20 11:26:35 -0700
commit16514f272fb42af6e9c7674a9bd6c9dce369231f (patch)
treee4f332b45fe65e2a7a2451be5674f887b42bf199 /testsuite/tests/indexed-types/should_compile/Col.hs
parentebd422aed41048476aa61dd4c520d43becd78682 (diff)
downloadhaskell-16514f272fb42af6e9c7674a9bd6c9dce369231f.tar.gz
Move tests from tests/ghc-regress/* to just tests/*
Diffstat (limited to 'testsuite/tests/indexed-types/should_compile/Col.hs')
-rw-r--r--testsuite/tests/indexed-types/should_compile/Col.hs16
1 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/indexed-types/should_compile/Col.hs b/testsuite/tests/indexed-types/should_compile/Col.hs
new file mode 100644
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--- /dev/null
+++ b/testsuite/tests/indexed-types/should_compile/Col.hs
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+{-# LANGUAGE TypeFamilies #-}
+
+module Col where
+
+type family Elem c
+
+type instance Elem [e] = e
+
+class Col c where
+ singleton :: Elem c -> c
+ add :: c -> Elem c -> c
+
+instance Col [e] where
+ singleton = \x -> [x]
+ add = flip (:)
+