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19 commits

Author SHA1 Message Date
Wanda 8e6ae9e6e0 Implement RFC 38: Component signature immutability. 
Fixes #996.
 2023-12-11 19:51:32 +00:00
Wanda 6ad0d21cc9 Implement RFC 37: Make `Signature` immutable. 
Fixes #995.
 2023-12-11 19:01:32 +00:00
Catherine b9c2404f22 lib.wiring: make values of In and Out be strings "In" and "Out". 
Their `str()` and `repr()` values are already that; and the 0 and 1
don't make sense. The RFC leaves it unspecified.
 2023-12-11 18:04:37 +00:00
Wanda 422ba9ea51 lib.wiring: use tracer to obtain default Signature path and src_loc. 
Fixes #987.
 2023-12-07 21:50:34 +00:00
Catherine 120375dabe lib.wiring: fix __repr__ for PureInterface subclasses. 
Fixes #988.
 2023-12-05 04:46:11 +00:00
Wanda 0cdcab0fbb Implement RFC 34: Rename amaranth.lib.wiring.Interface to PureInterface. 2023-12-04 21:41:47 +00:00
Wanda ab6503e352 lib.wiring: add __repr__ to Interface. 2023-12-03 02:00:20 +00:00
Catherine 04f906965a lib.wiring: in is_compliant(sig, obj), check that obj is an interface object with that signature. 
Fixes #935.
 2023-11-27 18:50:41 +00:00
Catherine 8b48af6de8 lib.wiring: make sig.members += actually work. 2023-11-27 15:42:24 +00:00
Catherine a2e87b370e lib.wiring: fix typo in Signature.flatten. 2023-11-27 15:42:24 +00:00
Catherine 74e613b49d lib.wiring: expand flipped object forwarding to respect @property and del. 
Although `@property` is the most common case, any descriptors are now
properly supported.

The special casing of methods goes away as they work by having functions
implement the descriptor protocol. (`__get__` has some special behavior
to make this possible.)

This is some of the most cursed code I have ever written, yet it is
obviously necessary.
 2023-11-26 12:53:59 +00:00
William D. Jones abd74ead55 lib.wiring: flip sub-interfaces accessed via FlippedInterface. 2023-11-22 03:07:41 +00:00
Wanda e53d78474f test_lib_wiring: squash UnusedElaboratable warnings. 2023-10-24 20:18:16 +00:00
Wanda 470477a88f lib.wiring: fix Component.signature on subclasses without annotations. 
On Python <3.10, classes without annotations do not get an
`__annotations__` member at all, so the `getattr` on a subclass falls
back to the parent class `__annotations__`, attempting to create
signature members twice.  Fix that by looking at the `__dict__` instead.
 2023-10-08 22:49:47 +00:00
Catherine a90bc7b91a lib.wiring: create flipped interface from flipped signature. 
Fixes #914.

Co-authored-by: Nelson Gauthier <nelson.gauthier@gmail.com>
 2023-09-27 11:17:29 +00:00
Catherine 87fbcedecf lib.wiring: implement Signature.flatten. 2023-09-04 19:05:49 +00:00
Catherine f28b20fc84 lib.wiring: ensure flipped(flipped(intf)) is intf. 2023-09-01 05:42:04 +00:00
Catherine 44d5fac01c lib.wiring: fix equality of FlippedSignature with other object. 
Fixes #882.
 2023-08-31 19:26:07 +00:00
Catherine 4ffadff20d lib.wiring: implement amaranth-lang/rfcs#2. 
Co-authored-by: Charlotte <charlotte@lottia.net>
 2023-08-22 16:22:09 +00:00