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## Summary This PR contains the first step towards enabling robust first-party, third-party, and standard library import resolution in Ruff (including support for `typeshed`, stub files, native modules, etc.) by porting Pyright's import resolver to Rust. The strategy taken here was to start with a more-or-less direct port of the Pyright's TypeScript resolver. The code is intentionally similar, and the test suite is effectively a superset of Pyright's test suite for its own resolver. Due to the nature of the port, the code is very, very non-idiomatic for Rust. The code is also entirely unused outside of the test suite, and no effort has been made to integrate it with the rest of the codebase. Future work will include: - Refactoring the code (now that it works) to match Rust and Ruff idioms. - Further testing, in practice, to ensure that the resolver can resolve imports in a complex project, when provided with a virtual environment path. - Caching, to minimize filesystem lookups and redundant resolutions. - Integration into Ruff itself (use Ruff's existing settings, find rules that can make use of robust resolution, etc.) |
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