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GHC 9.14.1 · lts/ghc-9.14.x · 45dd537 · 2026-10-11

Moduleeither-n-0.1.0.0Haskell2010

Data.Lens.Injection.Injection11

The eleventh injection of a sum type, as a prism. The sum-type dual of Control.Lens.Field11.

  • 1 class
  • Packageeither-n-0.1.0.0
  • Exports1
  • LanguageHaskell2010
  • LicenceBSD-3-Clause
  • SourceInjection11.hs
classclass Injection11 s t a b | s -> a, t -> b, s b -> t, t a -> s where
#

Access the eleventh constructor of a sum type.

Where Control.Lens._11 is the eleventh projection out of a product, _I11 is the eleventh injection into a sum.

The default implementation is the prism to the eleventh constructor of a Generic type, injection (Proxy :: Proxy 10).

Example3 expressions
data T = C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | C10 | C11 Int | C12 deriving (Show, Generic)instance Injection11 T T Int IntC11 1 ^? _I11Just 1
Example1 expression
C12 ^? _I11Nothing
Example1 expression
_I11 # 1 :: TC11 1

Methods