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authorSimon Peyton Jones <simonpj@microsoft.com>2015-02-06 16:38:52 +0000
committerSimon Peyton Jones <simonpj@microsoft.com>2015-02-06 16:38:52 +0000
commit43636e1b8cf4a6d4752a22b098a9edd0759a7600 (patch)
treeb483be0b58a3d42720d507e7aef7726a0a538373 /testsuite/tests/mdo/should_compile/T10004.hs
parent0f75a3f0a15ac26e52dc3477fd6e5bc3cd5c6eca (diff)
downloadhaskell-43636e1b8cf4a6d4752a22b098a9edd0759a7600.tar.gz
Fix Trac #10004: head [] exception when using recursive mdo
Diffstat (limited to 'testsuite/tests/mdo/should_compile/T10004.hs')
-rw-r--r--testsuite/tests/mdo/should_compile/T10004.hs6
1 files changed, 6 insertions, 0 deletions
diff --git a/testsuite/tests/mdo/should_compile/T10004.hs b/testsuite/tests/mdo/should_compile/T10004.hs
new file mode 100644
index 0000000000..8e6200e841
--- /dev/null
+++ b/testsuite/tests/mdo/should_compile/T10004.hs
@@ -0,0 +1,6 @@
+{-# LANGUAGE RecursiveDo #-}
+module T10004 where
+
+bar :: IO ()
+bar = do rec {}
+ return ()