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nkpart/deriving_strategies.txt

Created January 23, 2018 02:12
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deriving_strategies.txt
Prelude> :set -XDerivingStrategies
Prelude> :set -XGeneralizedNewtypeDeriving
Prelude> newtype Foo = Foo Int deriving newtype Show
Prelude> Foo 3
3
Prelude> newtype BFoo = BFoo Int deriving Show
Prelude> BFoo 3
BFoo 3
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