8e3633f55a
This PR replaces most of the hard-coded AST definitions with a generation script, similar to what happens in `rust_python_formatter`. I've replaced every "rote" definition that I could find, where the content is entirely boilerplate and only depends on what syntax nodes there are and which groups they belong to. This is a pretty massive diff, but it's entirely a refactoring. It should make absolutely no changes to the API or implementation. In particular, this required adding some configuration knobs that let us override default auto-generated names where they don't line up with types that we created previously by hand. ## Test plan There should be no changes outside of the `rust_python_ast` crate, which verifies that there were no API changes as a result of the auto-generation. Aggressive `cargo clippy` and `uvx pre-commit` runs after each commit in the branch. --------- Co-authored-by: Micha Reiser <micha@reiser.io> Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> |
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| resources/test/fixtures | ||
| src | ||
| tests | ||
| Cargo.toml | ||
| CONTRIBUTING.md | ||
| generate.py | ||
| orphan_rules_in_the_formatter.svg | ||
| README.md | ||
Ruff Formatter
The Ruff formatter is an extremely fast Python code formatter that ships as part of the ruff
CLI.
Goals
The formatter is designed to be a drop-in replacement for Black, but with an excessive focus on performance and direct integration with Ruff.
Specifically, the formatter is intended to emit near-identical output when run over Black-formatted code. When run over extensive Black-formatted projects like Django and Zulip, > 99.9% of lines are formatted identically. When migrating an existing project from Black to Ruff, you should expect to see a few differences on the margins, but the vast majority of your code should be unchanged.
If you identify deviations in your project, spot-check them against the intentional deviations enumerated below, as well as the unintentional deviations filed in the issue tracker. If you've identified a new deviation, please file an issue.
When run over non-Black-formatted code, the formatter makes some different decisions than Black, and so more deviations should be expected, especially around the treatment of end-of-line comments. For details, see Style Guide.
Getting started
Head to The Ruff Formatter for usage instructions and a comparison to Black.