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hdl._dsl: improve error message on m.domains.cd_foo = ....

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Fixes #1331.
This commit is contained in:
Wanda 2024-04-15 02:25:46 +02:00 • committed by Catherine
parent 8c1c9f2d26
commit 625dac376a
2 changed files with 13 additions and 4 deletions
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8
amaranth/hdl/_dsl.py
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@ -191,9 +191,11 @@ class _ModuleBuilderDomainSet:
raise TypeError("Only clock domains may be added to `m.domains`, not {!r}"
.format(domain))
if domain.name != name:
raise NameError("Clock domain name {!r} must match name in `m.domains.{} += ...` "
"syntax"
.format(domain.name, name))
if name == "cd_" + domain.name:
raise NameError(f"Domain name should not be prefixed with 'cd_' in `m.domains`, "
f"use `m.domains.{domain.name} = ...` instead")
raise NameError(f"Clock domain name {domain.name!r} must match name in "
f"`m.domains.{name} = ...` syntax")
self._builder._add_domain(domain)