RealWorld -package:stateref -package:pvar -package:ghc-prim -package:base

data RealWorld
vector Data.Vector.Generic.Mutable Data.Vector.Mutable Data.Vector.Primitive.Mutable Data.Vector.Storable.Mutable Data.Vector.Unboxed.Mutable, primitive Control.Monad.Primitive, foldl Control.Foldl, base-prelude BasePrelude, proto-lens Data.ProtoLens.Encoding.Growing, massiv Data.Massiv.Array.Mutable, rebase Rebase.Prelude, massiv-test Test.Massiv.Utils, mutable-containers Data.Mutable, prim-uniq Data.Unique.Prim Data.Unique.Tag, declarative Numeric.MCMC, termonad Termonad.Prelude
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#.
data RealWorld
open-witness Data.OpenWitness Data.OpenWitness.ST
The s type for running OW in IO.
realWorldPrimIdKey :: Unique
ghc GHC.Builtin.Names, ghc-lib-parser GHC.Builtin.Names
realWorldTyConKey :: Unique
ghc GHC.Builtin.Names, ghc-lib-parser GHC.Builtin.Names
realWorldStatePrimTy :: Type
ghc GHC.Builtin.Types.Prim, ghc-lib-parser GHC.Builtin.Types.Prim
realWorldTy :: Type
ghc GHC.Builtin.Types.Prim, ghc-lib-parser GHC.Builtin.Types.Prim
realWorldTyCon :: TyCon
ghc GHC.Builtin.Types.Prim, ghc-lib-parser GHC.Builtin.Types.Prim
realWorldPrimId :: Id
ghc GHC.Types.Id.Make, ghc-lib-parser GHC.Types.Id.Make
realWorldDesign :: T
midi Sound.MIDI.Manufacturer
package realworldhaskell
Uses
Not on Stackage, so not searched. The Real World Haskell Book
package acme-realworld
Uses
Not on Stackage, so not searched. Primitives for manipulating the state of the universe