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Within LTS Haskell 24.58 (ghc-9.10.3)

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  1. foldFixM :: (Monad m, Traversable t) => (t a -> m a) -> Fix t -> m a

    data-fix Data.Fix

    Monadic foldFix.

  2. hoistFix :: Functor f => (forall a . () => f a -> g a) -> Fix f -> Fix g

    data-fix Data.Fix

    Change base functor in Fix.

  3. hoistFix' :: Functor g => (forall a . () => f a -> g a) -> Fix f -> Fix g

    data-fix Data.Fix

    Like hoistFix but fmapping over g.

  4. unFix :: Fix (f :: Type -> Type) -> f (Fix f)

    data-fix Data.Fix

    No documentation available.

  5. unfoldFix :: Functor f => (a -> f a) -> a -> Fix f

    data-fix Data.Fix

    Unfold Fix. 

    >>> unfoldFix (\i -> if i < 4 then Cons i (i + 1) else Nil) (0 :: Int)
Fix (Cons 0 (Fix (Cons 1 (Fix (Cons 2 (Fix (Cons 3 (Fix Nil))))))))

  6. unfoldFixM :: (Monad m, Traversable t) => (a -> m (t a)) -> a -> m (Fix t)

    data-fix Data.Fix

    Monadic anamorphism.

  7. unwrapFix :: Fix f -> f (Fix f)

    data-fix Data.Fix

    Unwrap Fix. 

    >>> let x = unfoldFix (\i -> if i < 3 then Cons i (i + 1) else Nil) (0 :: Int)

>>> unwrapFix x
Cons 0 (Fix (Cons 1 (Fix (Cons 2 (Fix Nil)))))

  8. wrapFix :: f (Fix f) -> Fix f

    data-fix Data.Fix

    Wrap Fix. 

    >>> let x = unfoldFix (\i -> if i < 3 then Cons i (i + 1) else Nil) (0 :: Int)

>>> wrapFix (Cons 10 x)
Fix (Cons 10 (Fix (Cons 0 (Fix (Cons 1 (Fix (Cons 2 (Fix Nil))))))))

  9. compactFixupPointers# :: Addr# -> Addr# -> State# RealWorld -> (# State# RealWorld, Compact#, Addr# #)

    ghc-internal GHC.Internal.Base

    Given the pointer to the first block of a CNF and the address of the root object in the old address space, fix up the internal pointers inside the CNF to account for a different position in memory than when it was serialized. This method must be called exactly once after importing a serialized CNF. It returns the new CNF and the new adjusted root address.

  10. data FixIOException

    ghc-internal GHC.Internal.Control.Exception.Base

    The exception thrown when an infinite cycle is detected in fixIO.

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