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GHC 9.10.3 · lts/ghc-9.10.x · c74966e · 2026-09-27

Modulevector-0.13.2.0

Data.Vector.Mutable

  • 4 types
  • 1 class
  • 68 values
classclass Monad m => PrimMonad (m :: Type -> Type) where
#

Class of monads which can perform primitive state-transformer actions.

Associated types

Instances18PrimMonad, …
datadata RealWorld
#

RealWorld is deeply magical. It is primitive, but it is not unlifted (hence ptrArg). We never manipulate values of type RealWorld; it's only used in the type system, to parameterise State#.