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-rw-r--r--testsuite/tests/deriving/should_fail/drvfail008.hs14
1 files changed, 14 insertions, 0 deletions
diff --git a/testsuite/tests/deriving/should_fail/drvfail008.hs b/testsuite/tests/deriving/should_fail/drvfail008.hs
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index 0000000000..af8628b4d5
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+++ b/testsuite/tests/deriving/should_fail/drvfail008.hs
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+-- Should fail without GeneralizedNewtypeDeriving
+-- Succeeds with GeneralizedNewtypeDeriving
+
+module ShouldFail where
+
+import Control.Monad.State
+
+data S = S Int
+
+newtype M a = M (StateT S IO a) deriving( Monad )
+
+
+
+