[all-commits] [llvm/llvm-project] ff812a: [lldb/test] Add _excluded_variant_combinations hoo...

[Med Ismail Bennani via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ff812a578f236d3554750391041146a6781a9f55
      https://github.com/llvm/llvm-project/commit/ff812a578f236d3554750391041146a6781a9f55
  Author: Med Ismail Bennani <ismail at bennani.ma>
  Date:   2026-06-03 (Wed, 03 Jun 2026)

  Changed paths:
    M lldb/packages/Python/lldbsuite/test/lldbtest.py

  Log Message:
  -----------
  [lldb/test] Add _excluded_variant_combinations hook in lldbtest (#201459)

Add a module-scope hook that LLDBTestCaseFactory consults during variant
expansion so the suite can declare combinations of variant axis values
that should never be generated. Each entry in
`_excluded_variant_combinations` is a dict mapping variant_name ->
value; the helper `_is_excluded_variant_combination(method,
variant_name, value_name)` returns True when assigning the given
variant=value to the method would produce a combination matching every
entry. `_expand_test_variants` checks the predicate before generating
each copy and drops the variant entirely so excluded crosses don't
appear in the test matrix at all.

This is a suite-wide per-axis-combination analogue of
NO_DEBUG_INFO_TESTCASE: instead of collapsing the entire debug-info axis
for one test class, it lets the suite declare narrowly that any variant
carrying e.g. {"swift_module_importer": "noclang", "swift_embedded":
"swiftembed"} should be dropped, regardless of which source method or
test class generated it. Useful when a subset of the variant matrix is
known broken (or simply redundant) without resorting to broad @skipIf /
@expectedFailureAll decorators on each affected method.

The list starts empty; the first downstream consumer
(swiftlang/llvm-project) adds the noclang × swiftembed cross at the same
time it registers the swift_module_importer / swift_embedded variants.

Signed-off-by: Med Ismail Bennani <ismail at bennani.ma>



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