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-rw-r--r--testsuite/tests/deriving/should_compile/Roles4.hs15
1 files changed, 15 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_compile/Roles4.hs b/testsuite/tests/deriving/should_compile/Roles4.hs
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+++ b/testsuite/tests/deriving/should_compile/Roles4.hs
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+{-# LANGUAGE RoleAnnotations #-}
+
+module Roles4 where
+
+class C1 a@N where
+ meth1 :: a -> a
+
+class C2 a@R where
+ meth2 :: a -> a
+
+type Syn1 a@N = [a]
+
+class C3 a where
+ meth3 :: a -> Syn1 a
+