error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:15:5 | LL | / match x { LL | | Some(y) => { LL | | println!("{:?}", y); LL | | }, LL | | _ => (), LL | | }; | |_____^ | = note: `-D clippy::single-match` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::single_match)]` help: try | LL ~ if let Some(y) = x { LL + println!("{:?}", y); LL ~ }; | error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:23:5 | LL | / match x { LL | | // Note the missing block braces. LL | | // We suggest `if let Some(y) = x { .. }` because the macro LL | | // is expanded before we can do anything. LL | | Some(y) => println!("{:?}", y), LL | | _ => (), LL | | } | |_____^ help: try: `if let Some(y) = x { println!("{:?}", y) }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:32:5 | LL | / match z { LL | | (2..=3, 7..=9) => dummy(), LL | | _ => {}, LL | | }; | |_____^ help: try: `if let (2..=3, 7..=9) = z { dummy() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:61:5 | LL | / match x { LL | | Some(y) => dummy(), LL | | None => (), LL | | }; | |_____^ help: try: `if let Some(y) = x { dummy() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:66:5 | LL | / match y { LL | | Ok(y) => dummy(), LL | | Err(..) => (), LL | | }; | |_____^ help: try: `if let Ok(y) = y { dummy() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:73:5 | LL | / match c { LL | | Cow::Borrowed(..) => dummy(), LL | | Cow::Owned(..) => (), LL | | }; | |_____^ help: try: `if let Cow::Borrowed(..) = c { dummy() }` error: you seem to be trying to use `match` for an equality check. Consider using `if` --> tests/ui/single_match.rs:94:5 | LL | / match x { LL | | "test" => println!(), LL | | _ => (), LL | | } | |_____^ help: try: `if x == "test" { println!() }` error: you seem to be trying to use `match` for an equality check. Consider using `if` --> tests/ui/single_match.rs:107:5 | LL | / match x { LL | | Foo::A => println!(), LL | | _ => (), LL | | } | |_____^ help: try: `if x == Foo::A { println!() }` error: you seem to be trying to use `match` for an equality check. Consider using `if` --> tests/ui/single_match.rs:113:5 | LL | / match x { LL | | FOO_C => println!(), LL | | _ => (), LL | | } | |_____^ help: try: `if x == FOO_C { println!() }` error: you seem to be trying to use `match` for an equality check. Consider using `if` --> tests/ui/single_match.rs:118:5 | LL | / match &&x { LL | | Foo::A => println!(), LL | | _ => (), LL | | } | |_____^ help: try: `if x == Foo::A { println!() }` error: you seem to be trying to use `match` for an equality check. Consider using `if` --> tests/ui/single_match.rs:124:5 | LL | / match &x { LL | | Foo::A => println!(), LL | | _ => (), LL | | } | |_____^ help: try: `if x == &Foo::A { println!() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:141:5 | LL | / match x { LL | | Bar::A => println!(), LL | | _ => (), LL | | } | |_____^ help: try: `if let Bar::A = x { println!() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:149:5 | LL | / match x { LL | | None => println!(), LL | | _ => (), LL | | }; | |_____^ help: try: `if let None = x { println!() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:171:5 | LL | / match x { LL | | (Some(_), _) => {}, LL | | (None, _) => {}, LL | | } | |_____^ help: try: `if let (Some(_), _) = x {}` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:177:5 | LL | / match x { LL | | (Some(E::V), _) => todo!(), LL | | (_, _) => {}, LL | | } | |_____^ help: try: `if let (Some(E::V), _) = x { todo!() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:183:5 | LL | / match (Some(42), Some(E::V), Some(42)) { LL | | (.., Some(E::V), _) => {}, LL | | (..) => {}, LL | | } | |_____^ help: try: `if let (.., Some(E::V), _) = (Some(42), Some(E::V), Some(42)) {}` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:255:5 | LL | / match bar { LL | | Some(v) => unsafe { LL | | let r = &v as *const i32; LL | | println!("{}", *r); LL | | }, LL | | _ => {}, LL | | } | |_____^ | help: try | LL ~ if let Some(v) = bar { unsafe { LL + let r = &v as *const i32; LL + println!("{}", *r); LL + } } | error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:263:5 | LL | / match bar { LL | | #[rustfmt::skip] LL | | Some(v) => { LL | | unsafe { ... | LL | | _ => {}, LL | | } | |_____^ | help: try | LL ~ if let Some(v) = bar { LL + unsafe { LL + let r = &v as *const i32; LL + println!("{}", *r); LL + } LL + } | error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:343:5 | LL | / match Ok::<_, u32>(Some(A)) { LL | | Ok(Some(A)) => println!(), LL | | Err(_) | Ok(None | Some(_)) => {}, LL | | } | |_____^ help: try: `if let Ok(Some(A)) = Ok::<_, u32>(Some(A)) { println!() }` error: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let` --> tests/ui/single_match.rs:358:5 | LL | / match &Some(A) { LL | | Some(A | B) => println!(), LL | | None | Some(_) => {}, LL | | } | |_____^ help: try: `if let Some(A | B) = &Some(A) { println!() }` error: this pattern is irrefutable, `match` is useless --> tests/ui/single_match.rs:371:5 | LL | / match DATA { LL | | DATA => println!(), LL | | _ => {}, LL | | } | |_____^ help: try: `println!();` error: this pattern is irrefutable, `match` is useless --> tests/ui/single_match.rs:376:5 | LL | / match CONST_I32 { LL | | CONST_I32 => println!(), LL | | _ => {}, LL | | } | |_____^ help: try: `println!();` error: this pattern is irrefutable, `match` is useless --> tests/ui/single_match.rs:382:5 | LL | / match i { LL | | i => { LL | | let a = 1; LL | | let b = 2; LL | | }, LL | | _ => {}, LL | | } | |_____^ | help: try | LL ~ { LL + let a = 1; LL + let b = 2; LL + } | error: this pattern is irrefutable, `match` is useless --> tests/ui/single_match.rs:390:5 | LL | / match i { LL | | i => {}, LL | | _ => {}, LL | | } | |_____^ help: `match` expression can be removed error: this pattern is irrefutable, `match` is useless --> tests/ui/single_match.rs:395:5 | LL | / match i { LL | | i => (), LL | | _ => (), LL | | } | |_____^ help: `match` expression can be removed error: this pattern is irrefutable, `match` is useless --> tests/ui/single_match.rs:400:5 | LL | / match CONST_I32 { LL | | CONST_I32 => println!(), LL | | _ => {}, LL | | } | |_____^ help: try: `println!()` error: aborting due to 26 previous errors