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Within LTS Haskell 24.6 (ghc-9.10.2)

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  1. deriveElmDef :: Options -> Name -> Q [Dec]

    servant-elm Servant.Elm

    Just derive the elm-bridge definitions for generating the serialization/deserialization code. It must be kept synchronized with the Haskell code manually.

  2. deriveEnumerable :: Name -> Q [Dec]

    size-based Control.Enumerable

    No documentation available.

  3. deriveEnumerable' :: ConstructorDeriv -> Q [Dec]

    size-based Control.Enumerable

    Derive an instance of Enumberable with Template Haskell, with rules for some specific constructors

  4. deriveByParam :: Int -> Fix SRTree -> Fix SRTree

    srtree Data.SRTree.Derivative

    Symbolic derivative by a parameter

  5. deriveByVar :: Int -> Fix SRTree -> Fix SRTree

    srtree Data.SRTree.Derivative

    Symbolic derivative by a variable

  6. deriveSymmetryOperation :: (Monad m, Integral a) => (SymbolSenseVectorOrientation -> m String) -> SymbolSenseVectorOrientation -> m (Matrix (Ratio a))

    symmetry-operations-symbols Data.Matrix.SymmetryOperationsSymbols.Calc

    No documentation available.

  7. deriveJSON' :: Name -> Q [Dec]

    telegram-bot-api Telegram.Bot.API.Internal.Utils

    No documentation available.

  8. deriveGTraversable :: Name -> Q [Dec]

    traverse-with-class Data.Generics.Traversable.TH

    Example usage: 

    data MyType = MyType

deriveGTraversable ''MyType
    It tries to create the necessary instance constraints, but is not very smart about it For tricky types, it may fail or produce an overconstrained instance. In that case, write the instance declaration yourself and use gtraverseExpr to derive the implementation: 
    data MyType a = MyType

instance GTraversable (MyType a) where
gtraverse = $(gtraverseExpr ''MyType)

  9. derivePathInfo :: Name -> Q [Dec]

    web-routes-th Web.Routes.TH

    use Template Haskell to create PathInfo instances for a type. 

    $(derivePathInfo ''SiteURL)
    Uses the standard formatter by default.

  10. derivePathInfo' :: (String -> String) -> Name -> Q [Dec]

    web-routes-th Web.Routes.TH

    use Template Haskell to create PathInfo instances for a type. This variant allows the user to supply a function that transforms the constructor name to a prettier rendering. It is important that the transformation function generates a unique output for each input. For example, simply converting the string to all lower case is not acceptable, because then FooBar and Foobar would be indistinguishable. 

    $(derivePathInfo' standard ''SiteURL)
    see also: standard

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