mirror of https://github.com/voidlizard/hbs2
30 lines
763 B
Haskell
30 lines
763 B
Haskell
module HBS2.Prelude.Plated
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( module HBS2.Prelude.Plated
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, module HBS2.Prelude
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, module Data.Data
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, module Data.Generics.Uniplate.Operations
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, Generic
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) where
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import Data.Data
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import Data.Generics.Uniplate.Data()
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import Data.Generics.Uniplate.Operations
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import GHC.Generics()
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import Safe
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import HBS2.Prelude
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uniLastMay :: forall to from . (Data from, Data to) => from -> Maybe to
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uniLastMay = lastMay . universeBi
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uniLastDef :: forall from to . (Data from, Data to) => to -> from -> to
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uniLastDef d = lastDef d . universeBi
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uniFirstMay :: forall to from . (Data from, Data to) => from -> Maybe to
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uniFirstMay = headMay . universeBi
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uniFirstDef :: forall from to . (Data from, Data to) => to -> from -> to
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uniFirstDef d = headDef d . universeBi
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