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authorBen Gamari <ben@smart-cactus.org>2021-01-05 19:30:24 -0500
committerBen Gamari <ben@smart-cactus.org>2021-01-13 18:39:25 -0500
commite1230ede3d1c77a6916e318aefcd47829e56035c (patch)
tree36b89a8d6fae359a5c5de4887c020a6101bd5cf8 /html-test/src/Bug975.hs
parent9a7e3d6fa3faad2ccb75f7f3e9d9f4bc203a77ca (diff)
parent99f61534a470b84c424fde0835215de6a3b6d721 (diff)
Merge remote-tracking branch 'origin/ghc-9.0' into ghc-head
Diffstat (limited to 'html-test/src/Bug975.hs')
-rw-r--r--html-test/src/Bug975.hs15
1 files changed, 15 insertions, 0 deletions
diff --git a/html-test/src/Bug975.hs b/html-test/src/Bug975.hs
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+{-# LANGUAGE ExplicitForAll #-}
+module Bug973 where
+
+showRead
+ :: forall a b. (Show a, Read b)
+ => a -- ^ this gets turned into a string...
+ -> b -- ^ ...from which this is read
+showRead = read . show
+
+-- | Same as 'showRead', but with type variable order flipped
+showRead'
+ :: forall b a. (Show a, Read b)
+ => a -- ^ this gets turned into a string...
+ -> b -- ^ ...from which this is read
+showRead' = read . show