[flake8-pyi] Fix false positive in __all__ (PYI053)#26872
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Summary -- This PR fixes a false positive on long strings in `__all__`. These strings correspond to existing exported symbols and are out of the stub author's control. I initially hoped that we could use the existing `Semantic::in_dunder_all_definition`, but this is only set in `Checker::visit_exports` and used for adding global references, so the flag is no longer set when the rule runs in `Checker::visit_expr`. I found another similar piece of existing code in `Checker::handle_node_store` and factored that out into a `Checker` helper method. Test Plan -- New mdtest
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Summary
This PR fixes a false positive on long strings in
__all__. These strings correspond to existingexported symbols and are out of the stub author's control.
I initially hoped that we could use the existing
Semantic::in_dunder_all_definition, but this isonly set in
Checker::visit_exportsand used for adding global references, so the flag is no longerset when the rule runs in
Checker::visit_expr.I found another similar piece of existing code in
Checker::handle_node_storeand factored that outinto a
Checkerhelper method.Test Plan
New mdtest