diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/redundant_pattern_matching_ipaddr.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/redundant_pattern_matching_ipaddr.rs | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/redundant_pattern_matching_ipaddr.rs b/src/tools/clippy/tests/ui/redundant_pattern_matching_ipaddr.rs new file mode 100644 index 000000000..678d91ce9 --- /dev/null +++ b/src/tools/clippy/tests/ui/redundant_pattern_matching_ipaddr.rs @@ -0,0 +1,91 @@ +// run-rustfix + +#![warn(clippy::all)] +#![warn(clippy::redundant_pattern_matching)] +#![allow(unused_must_use, clippy::needless_bool, clippy::match_like_matches_macro)] + +use std::net::{ + IpAddr::{self, V4, V6}, + Ipv4Addr, Ipv6Addr, +}; + +fn main() { + let ipaddr: IpAddr = V4(Ipv4Addr::LOCALHOST); + if let V4(_) = &ipaddr {} + + if let V4(_) = V4(Ipv4Addr::LOCALHOST) {} + + if let V6(_) = V6(Ipv6Addr::LOCALHOST) {} + + while let V4(_) = V4(Ipv4Addr::LOCALHOST) {} + + while let V6(_) = V6(Ipv6Addr::LOCALHOST) {} + + if V4(Ipv4Addr::LOCALHOST).is_ipv4() {} + + if V6(Ipv6Addr::LOCALHOST).is_ipv6() {} + + if let V4(ipaddr) = V4(Ipv4Addr::LOCALHOST) { + println!("{}", ipaddr); + } + + match V4(Ipv4Addr::LOCALHOST) { + V4(_) => true, + V6(_) => false, + }; + + match V4(Ipv4Addr::LOCALHOST) { + V4(_) => false, + V6(_) => true, + }; + + match V6(Ipv6Addr::LOCALHOST) { + V4(_) => false, + V6(_) => true, + }; + + match V6(Ipv6Addr::LOCALHOST) { + V4(_) => true, + V6(_) => false, + }; + + let _ = if let V4(_) = V4(Ipv4Addr::LOCALHOST) { + true + } else { + false + }; + + ipaddr_const(); + + let _ = if let V4(_) = gen_ipaddr() { + 1 + } else if let V6(_) = gen_ipaddr() { + 2 + } else { + 3 + }; +} + +fn gen_ipaddr() -> IpAddr { + V4(Ipv4Addr::LOCALHOST) +} + +const fn ipaddr_const() { + if let V4(_) = V4(Ipv4Addr::LOCALHOST) {} + + if let V6(_) = V6(Ipv6Addr::LOCALHOST) {} + + while let V4(_) = V4(Ipv4Addr::LOCALHOST) {} + + while let V6(_) = V6(Ipv6Addr::LOCALHOST) {} + + match V4(Ipv4Addr::LOCALHOST) { + V4(_) => true, + V6(_) => false, + }; + + match V6(Ipv6Addr::LOCALHOST) { + V4(_) => false, + V6(_) => true, + }; +} |