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GHC 9.14.1 · lts/ghc-9.14.x · 3e2d568 · 2026-10-11

Modulevoid-0.7.4Haskell98

Data.Void.Unsafe

  • 2 values
  • Packagevoid-0.7.4
  • Exports2
  • LanguageHaskell98
  • LicenceBSD-3-Clause
  • SourceUnsafe.hs
valueunsafeVacuous :: Functor f => f Void -> f a
#

If Void is uninhabited then any Functor that holds only values of the type Void is holding no values.

This is only safe for valid functors that do not perform GADT-like analysis on the argument.

valueunsafeVacuousM :: Monad m => m Void -> m a
#

If Void is uninhabited then any Monad that holds values of type Void is holding no values.

This is only safe for valid monads that do not perform GADT-like analysis on the argument.