Build(deps): Bump leynos/shared-actions/.github/actions/generate-coverage from 4d696e72fff6db49f34302ccf119ba978f1032c9 to 57a33fa65e329db7edc81ece661f1a2e1d39868f

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
       # the work and the CodeScene upload for the same commit.
       - name: Test and Measure Coverage
         if: ${{ github.event_name == 'pull_request' }}
-        uses: leynos/shared-actions/.github/actions/generate-coverage@4d696e72fff6db49f34302ccf119ba978f1032c9
+        uses: leynos/shared-actions/.github/actions/generate-coverage@57a33fa65e329db7edc81ece661f1a2e1d39868f
         with:
           output-path: coverage.xml
           format: cobertura

.github/workflows/coverage-main.yml

@@ -43,7 +43,7 @@ jobs:
 
 
       - name: Generate coverage
-        uses: leynos/shared-actions/.github/actions/generate-coverage@4d696e72fff6db49f34302ccf119ba978f1032c9
+        uses: leynos/shared-actions/.github/actions/generate-coverage@57a33fa65e329db7edc81ece661f1a2e1d39868f
         with:
           output-path: coverage.xml
           format: cobertura

README.md

@@ -78,7 +78,7 @@ ______________________________________________________________________
 
 ## Features
 
-Twelve pylint messages:
+Thirteen pylint messages:
 
 - `prefer-structural-pattern-matching` (R9101) — `isinstance` dispatch on
   one subject should be a `match` statement with class patterns.
@@ -98,7 +98,9 @@ Twelve pylint messages:
 - `prefer-snapshot-assertion` (R9108) and `prefer-snapshot-substring`
   (R9109) — tests asserting against large inline literals or repeatedly probing
   substrings should use a syrupy snapshot.
-- `prefer-type-statement` (R9111) — module-level type aliases should use
+- `prefer-slots-for-dataclass` (R9111) — closed standard-library dataclasses
+  should request generated slots or declare an explicit slot layout.
+- `prefer-type-statement` (R9112) — module-level type aliases should use
   the PEP 695 `type` statement on a 3.12+ baseline.
 - `redundant-future-annotations` (C9112) — `from __future__ import annotations`
   should be removed on a 3.14+ baseline, where deferred evaluation is the

df12_python_lints/__init__.py

@@ -1,7 +1,7 @@
 """df12-python-lints: pylint checkers for df12 Python conventions.
 
-The package is a pylint plugin. Loading it registers nine checkers
-providing twelve messages:
+The package is a pylint plugin. Loading it registers ten checkers
+providing thirteen messages:
 
 - ``prefer-structural-pattern-matching`` (R9101) flags ``isinstance``
   dispatch chains better expressed as ``match`` statements;
@@ -22,7 +22,9 @@
 - ``prefer-snapshot-assertion`` (R9108) with
   ``prefer-snapshot-substring`` (R9109) flag test assertions better
   expressed as syrupy snapshots; and
-- ``prefer-type-statement`` (R9111) flags module-level type aliases
+- ``prefer-slots-for-dataclass`` (R9111) flags closed standard-library
+  dataclasses that do not request or declare slots;
+- ``prefer-type-statement`` (R9112) flags module-level type aliases
   better declared with the PEP 695 ``type`` statement, while
   ``redundant-future-annotations`` (C9112) flags ``from __future__
   import annotations`` on a 3.14+ baseline; both respect pylint's
@@ -46,6 +48,7 @@
 
 from .assert_messages import AssertMessageChecker
 from .constant_chain import ConstantChainChecker
+from .dataclass_slots import DataclassSlotsChecker
 from .future_annotations import FutureAnnotationsChecker
 from .match_dispatch import MatchDispatchChecker
 from .reexports import ReexportAssignmentChecker
@@ -60,6 +63,7 @@
 __all__ = [
     "AssertMessageChecker",
     "ConstantChainChecker",
+    "DataclassSlotsChecker",
     "FutureAnnotationsChecker",
     "MatchDispatchChecker",
     "ReexportAssignmentChecker",
@@ -83,6 +87,7 @@ def register(linter: PyLinter) -> None:
     linter.register_checker(MatchDispatchChecker(linter))
     linter.register_checker(AssertMessageChecker(linter))
     linter.register_checker(ConstantChainChecker(linter))
+    linter.register_checker(DataclassSlotsChecker(linter))
     linter.register_checker(TrivialWrapperChecker(linter))
     linter.register_checker(ReexportAssignmentChecker(linter))
     linter.register_checker(SuppressionCommentChecker(linter))