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-rw-r--r--testsuite/tests/rename/should_compile/T3901.hs16
1 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/rename/should_compile/T3901.hs b/testsuite/tests/rename/should_compile/T3901.hs
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+++ b/testsuite/tests/rename/should_compile/T3901.hs
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+{-# LANGUAGE RecordWildCards, TransformListComp, NamedFieldPuns #-}
+
+module T3901 where
+
+import GHC.Exts (groupWith)
+
+data Rec = Rec {a :: Int} deriving (Show)
+
+recs1 = [a | Rec {a=a} <- [Rec 1], then group by a using groupWith]
+
+recs2 = [a | Rec {a} <- [Rec 1], then group by a using groupWith]
+
+recs3 = [a | Rec {..} <- [Rec 1], then group by a using groupWith]
+
+recs4 :: [[Int]]
+recs4 = [a | Rec {..} <- [Rec 1], then group by a using groupWith]