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authorFumiaki Kinoshita <fumiexcel@gmail.com>2020-07-15 21:12:07 +0900
committerMarge Bot <ben+marge-bot@smart-cactus.org>2020-10-14 18:06:12 -0400
commite60ae8a38394370fd8818ad004a101466fc7d2dc (patch)
tree6eff280150db65ae373aba5d50f550180b99983b /testsuite/tests/mdo
parentbf2411a3c198cb2df93a9e0aa0c3b8297f47058d (diff)
downloadhaskell-e60ae8a38394370fd8818ad004a101466fc7d2dc.tar.gz
Add -Wnoncanonical-{monad,monoid}-instances to standardWarnings
------------------------- Metric Decrease: T12425 Metric Increase: T17516 -------------------------
Diffstat (limited to 'testsuite/tests/mdo')
-rw-r--r--testsuite/tests/mdo/should_fail/mdofail004.hs3
1 files changed, 1 insertions, 2 deletions
diff --git a/testsuite/tests/mdo/should_fail/mdofail004.hs b/testsuite/tests/mdo/should_fail/mdofail004.hs
index 929785423c..a313747e8a 100644
--- a/testsuite/tests/mdo/should_fail/mdofail004.hs
+++ b/testsuite/tests/mdo/should_fail/mdofail004.hs
@@ -19,11 +19,10 @@ instance Functor X where
fmap = liftM
instance Applicative X where
- pure = return
+ pure = X
(<*>) = ap
instance Monad X where
- return = X
(X a) >>= f = f a
z :: X [Int]