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  1. kindRep_maybe :: HasDebugCallStack => Kind -> Maybe RuntimeRepType

    ghc-lib-parser GHC.Core.Type

    Given a kind (TYPE rr) or (CONSTRAINT rr), extract its RuntimeRep classifier rr. For example, kindRep_maybe * = Just LiftedRep Returns Nothing if the kind is not of form (TYPE rr)

  2. levityType_maybe :: LevityType -> Maybe Levity

    ghc-lib-parser GHC.Core.Type

    levityType_maybe takes a Type of kind Levity, and returns its levity May not be possible for a type variable or type family application

  3. mkBoxedRepApp_maybe :: LevityType -> Maybe Type

    ghc-lib-parser GHC.Core.Type

    Given a Levity, apply BoxedRep to it On the fly, rewrite BoxedRep Lifted --> liftedRepTy (a synonym) BoxedRep Unlifted --> unliftedRepTy (ditto) See Note [TYPE and CONSTRAINT] in GHC.Builtin.Types.Prim. See Note [Using synonyms to compress types] in GHC.Core.Type

  4. mkCONSTRAINTapp_maybe :: RuntimeRepType -> Maybe Type

    ghc-lib-parser GHC.Core.Type

    Just like mkTYPEapp_maybe

  5. mkTYPEapp_maybe :: RuntimeRepType -> Maybe Type

    ghc-lib-parser GHC.Core.Type

    Given a RuntimeRep, applies TYPE to it. On the fly it rewrites TYPE LiftedRep --> liftedTypeKind (a synonym) TYPE UnliftedRep --> unliftedTypeKind (ditto) TYPE ZeroBitRep --> zeroBitTypeKind (ditto) NB: no need to check for TYPE (BoxedRep Lifted), TYPE (BoxedRep Unlifted) because those inner types should already have been rewritten to LiftedRep and UnliftedRep respectively, by mkTyConApp see Note [TYPE and CONSTRAINT] in GHC.Builtin.Types.Prim. See Note [Using synonyms to compress types] in GHC.Core.Type

  6. mkTupleRepApp_maybe :: Type -> Maybe Type

    ghc-lib-parser GHC.Core.Type

    Given a `[RuntimeRep]`, apply TupleRep to it On the fly, rewrite TupleRep [] -> zeroBitRepTy (a synonym) See Note [TYPE and CONSTRAINT] in GHC.Builtin.Types.Prim. See Note [Using synonyms to compress types] in GHC.Core.Type

  7. namedPiTyBinder_maybe :: PiTyBinder -> Maybe TyCoVar

    ghc-lib-parser GHC.Core.Type

    No documentation available.

  8. repGetTyVar_maybe :: Type -> Maybe TyVar

    ghc-lib-parser GHC.Core.Type

    Attempts to obtain the type variable underlying a Type, without any expansion

  9. runtimeRepLevity_maybe :: RuntimeRepType -> Maybe Levity

    ghc-lib-parser GHC.Core.Type

    Check whether a type (usually of kind RuntimeRep) is lifted, unlifted, or unknown. Returns Nothing if the type isn't of kind RuntimeRep. `runtimeRepLevity_maybe rr` returns:

    • `Just Lifted` if rr is `LiftedRep :: RuntimeRep`
    • `Just Unlifted` if rr is definitely unlifted, e.g. IntRep
    • Nothing if not known (e.g. it's a type variable or a type family application).

  10. sORTKind_maybe :: Kind -> Maybe (TypeOrConstraint, Type)

    ghc-lib-parser GHC.Core.Type

    No documentation available.

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