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26 commits

Author SHA1 Message Date
Catherine 57612f1dce lib.enum: add Enum wrappers that allow specifying shape. 
See #756 and amaranth-lang/rfcs#3.
 2023-02-28 13:00:41 +00:00
Catherine ef2e9fa809 hdl.ast: Value.matches() with no arguments should return C(1). 
The behavior of the following must be always the same:
- `with m.Switch(v): with m.Case(*pats):`
- `with m.If(v.matches(*pats)):`
 2023-02-28 09:09:27 +00:00
Catherine 58721ee4fe hdl: implement constant-castable expressions. 
See #755 and amaranth-lang/rfcs#4.
 2023-02-27 22:38:38 +00:00
Catherine bef2052c1e hdl.ast: implement Value.__pos__. 2023-02-27 22:31:17 +00:00
Catherine 5a79c351e3 Remove features deprecated in version 0.3. 2023-01-31 21:38:27 +00:00
Catherine 7044e09110 hdl.ast: remove Shape<>tuple comparisons. 
See #691.

I missed this in commit 29502442.
 2023-01-31 15:23:06 +00:00
Catherine 29502442fb hdl.ast: remove Shape<>tuple casts. 
Closes #691.
 2023-01-31 12:58:29 +00:00
Arusekk de6b69370f hdl.ast: Do not warn on int Enums in Cat. 
This aligns with the behavior for plain Enums.
 2023-01-22 23:40:39 +00:00
Arusekk 58a0c68279 hdl.ast: allow typed int enums in Value.cast. 2023-01-22 23:40:39 +00:00
Catherine bf16acf2f0 hdl.ast: implement ShapeCastable (like ValueCastable). 
Refs #693.
 2022-09-24 07:19:03 +00:00
Catherine 0723f6bac9 hdl.ast: recursively cast ValueCastable objects to values. 2022-09-24 07:18:57 +00:00
whitequark b452e0e871 hdl.ast: support division and modulo with negative divisor. 
Fixes #621.

This commit bumps the Yosys version requirement to >=0.10.
 2021-12-11 10:25:48 +00:00
whitequark 44b8bd29af hdl.ast: warn on bare integer value used in Cat()/Repl(). 
Fixes #639.
 2021-12-11 08:18:33 +00:00
whitequark de7c9acb19 _utils: don't crash trying to flatten() strings. 
Fixes #614.
 2021-12-11 07:39:35 +00:00
whitequark 909a3b8be7 Rename nMigen to Amaranth HDL. 2021-12-10 10:34:13 +00:00
whitequark 11914a1e67 hdl.ast: improve interaction of ValueCastable with custom __getattr__. 
Avoid calling `__getattr__("_ValueCastable__lowered_to")` when
a ValueCastable has custom `__getattr__` implementation; this avoids
the need for downstream code to be aware of this implementataion
detail.
 2021-10-03 20:28:07 +00:00
whitequark e88d283ed3 hdl.ast: simplify Mux implementation. 2021-10-02 14:18:02 +00:00
whitequark 65499d5c45 hdl.ast: add tests for casting bare integers in {Cat,Repl}. 2021-10-02 13:18:11 +00:00
Robin Ole Heinemann b38b2cdad7 test.test_hdl_ast.OperatorTestCase: remove duplicate test_bool 2021-05-18 20:18:55 +00:00
Robin Ole Heinemann 2d85f888d6 tests: rename tests with duplicate names 2021-05-18 20:18:55 +00:00
whitequark c30dcea24d hdl.ast: handle int subclasses as slice start/stop values. 
Fixes #601.
 2021-03-18 23:52:23 +00:00
whitequark 818c8bc464 hdl.ast: normalize case values to two's complement, not signed binary. 
This was an especially insidious bug because the minus character is
valid in case values but has a completely different meaning (wildcard
rather than sign).

Fixes #559.
 2020-12-12 12:42:12 +00:00
whitequark bde37fe2f2 hdl.ast: deprecate UserValue in favor of ValueCastable. 
Closes #527.
 2020-11-06 02:21:53 +00:00
awygle 06c734992f
hdl.ast: implement ValueCastable. 
Closes RFC issue #355.
 2020-11-06 00:20:54 +00:00
whitequark fde242aa47 hdl.ast: clarify exception message for out of bounds indexing. 
Fixes #488.
 2020-08-27 01:14:05 +00:00
whitequark 67b957d4f4 tests: move out of the main package. 
Compared to tests in the repository root, tests in the package have
many downsides:
  * Unless explicitly excluded in find_packages(), tests and their
    support code effectively become a part of public API.
    This, unfortunately, happened with FHDLTestCase, which was never
    intended for downstream use.
  * Even if explicitly excluded from the setuptools package, using
    an editable install, or setting PYTHONPATH still allows accessing
    the tests.
  * Having a sub-package that is present in the source tree but not
    exported (or, worse, exported only sometimes) is confusing.
  * The name `nmigen.test` cannot be used for anything else, such as
    testing utilities that *are* intended for downstream use.
 2020-08-27 00:33:31 +00:00
Renamed from nmigen/test/test_hdl_ast.py (Browse further)