usb-tools/amaranth
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity

docs/changes: add changes from RFC 4.

Browse source
This commit is contained in:
Catherine 2023-02-28 09:04:31 +00:00
parent 58721ee4fe
commit 9aeb22311f
1 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
docs/changes.rst
View file

@ -30,14 +30,19 @@ Language changes
* Added: :class:`ShapeCastable`, similar to :class:`ValueCastable`.
* Added: :meth:`Value.as_signed` and :meth:`Value.as_unsigned` can be used on left-hand side of assignment (with no difference in behavior).
* Added: :meth:`Const.cast`, evaluating constant-castable values and returning a :class:`Const`. (`RFC 4`_)
* Added: :meth:`Value.matches` and ``with m.Case():`` accept any constant-castable objects. (`RFC 4`_)
* Changed: :meth:`Value.cast` casts :class:`ValueCastable` objects recursively.
* Changed: :meth:`Value.cast` treats instances of classes derived from both :class:`enum.Enum` and :class:`int` (including :class:`enum.IntEnum`) as enumerations rather than integers.
* Changed: :class:`Cat` accepts instances of classes derived from both :class:`enum.Enum` and :class:`int` (including :class:`enum.IntEnum`) without warning.
* Deprecated: :meth:`Const.normalize`. (`RFC 5 <https://amaranth-lang.org/rfcs/0005-remove-const-normalize.html>`_)
* Deprecated: :meth:`Const.normalize`. (`RFC 5`_)
* Removed: (deprecated in 0.1) casting of :class:`Shape` to and from a ``(width, signed)`` tuple.
* Removed: (deprecated in 0.3) :class:`ast.UserValue`.
* Removed: (deprecated in 0.3) support for ``# nmigen:`` linter instructions at the beginning of file.
.. _RFC 4: https://amaranth-lang.org/rfcs/0004-const-castable-exprs.html
.. _RFC 5: https://amaranth-lang.org/rfcs/0005-remove-const-normalize.html
Toolchain changes
-----------------