rust/tests/ui/wildcard_enum_match_arm.rs

102 lines
2.6 KiB
Rust

// run-rustfix
#![deny(clippy::wildcard_enum_match_arm)]
#![allow(
unreachable_code,
unused_variables,
dead_code,
clippy::single_match,
clippy::wildcard_in_or_patterns
)]
use std::io::ErrorKind;
#[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 => {},
_ => {},
};
// We need to use an enum not defined in this test because non_exhaustive is ignored for the
// purposes of dead code analysis within a crate.
let error_kind = ErrorKind::NotFound;
match error_kind {
ErrorKind::NotFound => {},
_ => {},
}
match error_kind {
ErrorKind::NotFound => {},
ErrorKind::PermissionDenied => {},
ErrorKind::ConnectionRefused => {},
ErrorKind::ConnectionReset => {},
ErrorKind::ConnectionAborted => {},
ErrorKind::NotConnected => {},
ErrorKind::AddrInUse => {},
ErrorKind::AddrNotAvailable => {},
ErrorKind::BrokenPipe => {},
ErrorKind::AlreadyExists => {},
ErrorKind::WouldBlock => {},
ErrorKind::InvalidInput => {},
ErrorKind::InvalidData => {},
ErrorKind::TimedOut => {},
ErrorKind::WriteZero => {},
ErrorKind::Interrupted => {},
ErrorKind::Other => {},
ErrorKind::UnexpectedEof => {},
_ => {},
}
}