Primitive GHC types with unlifted types inside. There used
to be a module named Data.Primitive.UnliftedArray in the
primitive library. However, it turns out that it is impossible
to write such an API safely in versions of GHC before 8.10.1, thanks
to some nasty interactions between unsafe coercions and the foreign
function interface. This package also uses a somewhat different,
and more flexible, approach than that module did.
Changes
Changelog
All notable changes to this project will be documented in this file.
Change the order of the type arguments to UnliftedArray_ and
MutableUnliftedArray_. This makes the library work better with
the typeclasses in the contiguous library.
2.0.0.0 – 2023-06-27
Use legitimate unlifted primitive types and operations, only supporting
GHC 9.4 and newer.
1.0.0.0 – 2020-11-02
Redo everything. This uses unsafeCoerce# a lot to coerce between
lifted and unlifted types. Stay on the 0.1.x.x series unless you need
something from this newer version.
0.1.3.0 – 2020-01-23
Add PrimUnlifted instances for ShortText and ShortByteString.
Add singletonUnliftedArray.
0.1.2.0 – 2019-07-08
Add PrimUnlifted instances for MVar, IORef, and STRef.
