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author | David Terei <davidterei@gmail.com> | 2011-07-20 11:09:03 -0700 |
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committer | David Terei <davidterei@gmail.com> | 2011-07-20 11:26:35 -0700 |
commit | 16514f272fb42af6e9c7674a9bd6c9dce369231f (patch) | |
tree | e4f332b45fe65e2a7a2451be5674f887b42bf199 /testsuite/tests/deSugar/should_compile/T3263-1.hs | |
parent | ebd422aed41048476aa61dd4c520d43becd78682 (diff) | |
download | haskell-16514f272fb42af6e9c7674a9bd6c9dce369231f.tar.gz |
Move tests from tests/ghc-regress/* to just tests/*
Diffstat (limited to 'testsuite/tests/deSugar/should_compile/T3263-1.hs')
-rw-r--r-- | testsuite/tests/deSugar/should_compile/T3263-1.hs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/testsuite/tests/deSugar/should_compile/T3263-1.hs b/testsuite/tests/deSugar/should_compile/T3263-1.hs new file mode 100644 index 0000000000..74249cd663 --- /dev/null +++ b/testsuite/tests/deSugar/should_compile/T3263-1.hs @@ -0,0 +1,36 @@ +-- Trac #3263. New kind of warning on ignored monadic bindings + +module T3263 where + +nullM :: IO () +nullM = return () + +nonNullM :: IO Int +nonNullM = return 10 + +-- No warning +t1 = do + nonNullM + +-- No warning +t2 = nonNullM + +-- No warning +t3 = do + nullM + nonNullM + +-- Warning +t4 = do + nonNullM + nullM + +-- No warning +t5 = do + _ <- nonNullM + nullM + +-- Warning +t6 = mdo + nonNullM + nullM
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