refurb

In addition to some of the other answers about the match statement, mCoding has this excellent video[0] explaining the match statement, specifically using it to match complex AST trees, like Refurb does. Note, not all of these checks use the match statement[1], sometimes it is more verbose to use a match statement vs a normal if/else statement. [0]: https://youtu.be/ASRqxDGutpA?t=470 [1]: https://github.com/dosisod/refurb/blob/master/refurb/checks/...

Thank you! I have found that pattern matching has made this project a whole lot easier. One of the other cool features about this project is how the check() functions are loaded based off the type of the node argument: https://github.com/dosisod/refurb/blob/master/refurb/loader.... This also supports type unions, so you can register your check for binary and unary expressions by typing node as `BinaryExpr | UnaryExpr`.

This is the largest codebase I've seen that makes extensive use of the new Python match: statement introduced in Python 3.10 - example: https://github.com/dosisod/refurb/blob/master/refurb/checks/...