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Diffstat (limited to 'testsuite/tests/th/TH_recursiveDo.hs')
| -rw-r--r-- | testsuite/tests/th/TH_recursiveDo.hs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/testsuite/tests/th/TH_recursiveDo.hs b/testsuite/tests/th/TH_recursiveDo.hs new file mode 100644 index 0000000000..f193cf7088 --- /dev/null +++ b/testsuite/tests/th/TH_recursiveDo.hs @@ -0,0 +1,18 @@ +{-# LANGUAGE RecursiveDo #-} +import Data.IORef +import Language.Haskell.TH +import Language.Haskell.TH.Syntax +import TH_recursiveDoImport + +main = testRec >> testMdo + +testRec = do + putStrLn $(lift . pprint =<< recIO) + -- Test that we got the expected structure. + SelfRef r1 <- $(recIO) + r2 <- readIORef r1 + SelfRef r1' <- readIORef r2 + print (r1 == r1') + +testMdo = + putStrLn $(lift . pprint =<< mdoIO) |