// run-rustfix #![deny(clippy::wildcard_enum_match_arm)] #![allow(unreachable_code, unused_variables)] #[derive(Clone, Copy, Debug, Eq, PartialEq)] enum Color { Red, Green, Blue, Rgb(u8, u8, u8), Cyan, } impl Color { fn is_monochrome(self) -> bool { match self { Color::Red | Color::Green | Color::Blue => true, Color::Rgb(r, g, b) => r | g == 0 || r | b == 0 || g | b == 0, Color::Cyan => false, } } } fn main() { let color = Color::Rgb(0, 0, 127); match color { Color::Red => println!("Red"), _ => eprintln!("Not red"), }; match color { Color::Red => println!("Red"), _not_red => eprintln!("Not red"), }; let _str = match color { Color::Red => "Red".to_owned(), not_red => format!("{:?}", not_red), }; match color { Color::Red => {}, Color::Green => {}, Color::Blue => {}, Color::Cyan => {}, c if c.is_monochrome() => {}, Color::Rgb(_, _, _) => {}, }; let _str = match color { Color::Red => "Red", c @ Color::Green | c @ Color::Blue | c @ Color::Rgb(_, _, _) | c @ Color::Cyan => "Not red", }; match color { Color::Rgb(r, _, _) if r > 0 => "Some red", _ => "No red", }; match color { Color::Red | Color::Green | Color::Blue | Color::Cyan => {}, Color::Rgb(..) => {}, }; let x: u8 = unimplemented!(); match x { 0 => {}, 140 => {}, _ => {}, }; }