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Diffstat (limited to 'docs/users_guide/exts/poly_kinds.rst')
| -rw-r--r-- | docs/users_guide/exts/poly_kinds.rst | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/docs/users_guide/exts/poly_kinds.rst b/docs/users_guide/exts/poly_kinds.rst index 5eef04dbd2..f72b20b790 100644 --- a/docs/users_guide/exts/poly_kinds.rst +++ b/docs/users_guide/exts/poly_kinds.rst @@ -9,6 +9,7 @@ Kind polymorphism :implies: :extension:`PolyKinds`, :extension:`DataKinds`, :extension:`KindSignatures` :since: 8.0.1 + :status: Deprecated The extension :extension:`TypeInType` is now deprecated: its sole effect is to switch on :extension:`PolyKinds` @@ -21,6 +22,8 @@ Kind polymorphism :implies: :extension:`KindSignatures` :since: 7.4.1 + :status: Included in :extension:`GHC2021` + Allow kind polymorphic types. This section describes GHC's kind system, as it appears in version 8.0 and beyond. @@ -251,6 +254,7 @@ Complete user-supplied kind signatures and polymorphic recursion :shortdesc: Enable detection of complete user-supplied kind signatures. :since: 8.10.1 + :status: Included in :extension:`Haskell98`, :extension:`Haskell2010` NB! This is a legacy feature, see :extension:`StandaloneKindSignatures` for the modern replacement. @@ -384,6 +388,7 @@ Standalone kind signatures and polymorphic recursion :implies: :extension:`NoCUSKs` :since: 8.10.1 + :status: Included in :extension:`GHC2021` Just as in type inference, kind inference for recursive types can only use *monomorphic* recursion. Consider this (contrived) example: :: @@ -904,6 +909,7 @@ The kind ``Type`` :shortdesc: Treat ``*`` as ``Data.Kind.Type``. :since: 8.6.1 + :status: Included in :extension:`Haskell98`, :extension:`Haskell2010`, :extension:`GHC2021` Treat the unqualified uses of the ``*`` type operator as nullary and desugar to ``Data.Kind.Type``. @@ -1085,5 +1091,3 @@ Examples:: single: TYPE single: levity polymorphism single: representation polymorphism - - |