mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-18 00:53:31 +00:00
302 lines
9.5 KiB
Text
302 lines
9.5 KiB
Text
error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
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--> $DIR/matches.rs:31:5
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31 | / match ExprNode::Butterflies {
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32 | | ExprNode::ExprAddrOf => Some(&NODE),
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33 | | _ => { let x = 5; None },
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34 | | }
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| |_____^ help: try this: `if let ExprNode::ExprAddrOf = ExprNode::Butterflies { Some(&NODE) } else { let x = 5; None }`
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= note: `-D clippy::single-match-else` implied by `-D warnings`
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error: you don't need to add `&` to all patterns
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--> $DIR/matches.rs:40:9
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40 | / match v {
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41 | | &Some(v) => println!("{:?}", v),
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42 | | &None => println!("none"),
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43 | | }
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| |_________^
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= note: `-D clippy::match-ref-pats` implied by `-D warnings`
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help: instead of prefixing all patterns with `&`, you can dereference the expression
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40 | match *v {
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41 | Some(v) => println!("{:?}", v),
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42 | None => println!("none"),
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error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
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--> $DIR/matches.rs:50:5
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50 | / match tup {
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51 | | &(v, 1) => println!("{}", v),
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52 | | _ => println!("none"),
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53 | | }
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| |_____^ help: try this: `if let &(v, 1) = tup { println!("{}", v) } else { println!("none") }`
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error: you don't need to add `&` to all patterns
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--> $DIR/matches.rs:50:5
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50 | / match tup {
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51 | | &(v, 1) => println!("{}", v),
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52 | | _ => println!("none"),
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53 | | }
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| |_____^
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help: instead of prefixing all patterns with `&`, you can dereference the expression
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50 | match *tup {
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51 | (v, 1) => println!("{}", v),
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error: you don't need to add `&` to both the expression and the patterns
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--> $DIR/matches.rs:56:5
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56 | / match &w {
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57 | | &Some(v) => println!("{:?}", v),
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58 | | &None => println!("none"),
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59 | | }
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| |_____^
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help: try
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56 | match w {
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57 | Some(v) => println!("{:?}", v),
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58 | None => println!("none"),
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error: you don't need to add `&` to all patterns
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--> $DIR/matches.rs:67:5
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67 | / if let &None = a {
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68 | | println!("none");
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69 | | }
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| |_____^
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help: instead of prefixing all patterns with `&`, you can dereference the expression
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67 | if let None = *a {
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| ^^^^ ^^
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error: you don't need to add `&` to both the expression and the patterns
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--> $DIR/matches.rs:72:5
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72 | / if let &None = &b {
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73 | | println!("none");
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74 | | }
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| |_____^
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help: try
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72 | if let None = b {
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| ^^^^ ^
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error: Err(_) will match all errors, maybe not a good idea
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--> $DIR/matches.rs:83:9
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83 | Err(_) => panic!("err")
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| ^^^^^^
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= note: `-D clippy::match-wild-err-arm` implied by `-D warnings`
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= note: to remove this warning, match each error separately or use unreachable macro
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:82:18
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82 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: `-D clippy::match-same-arms` implied by `-D warnings`
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note: same as this
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--> $DIR/matches.rs:81:18
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81 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:81:18
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81 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: Err(_) will match all errors, maybe not a good idea
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--> $DIR/matches.rs:89:9
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89 | Err(_) => {panic!()}
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| ^^^^^^
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= note: to remove this warning, match each error separately or use unreachable macro
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:88:18
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88 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:87:18
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87 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:87:18
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87 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: Err(_) will match all errors, maybe not a good idea
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--> $DIR/matches.rs:95:9
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95 | Err(_) => {panic!();}
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| ^^^^^^
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= note: to remove this warning, match each error separately or use unreachable macro
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:94:18
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94 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:93:18
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93 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:93:18
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93 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:101:18
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101 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:100:18
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100 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:100:18
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100 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:108:18
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108 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:107:18
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107 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:107:18
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107 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:114:18
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114 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:113:18
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113 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:113:18
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113 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:120:18
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120 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:119:18
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119 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:119:18
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119 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:141:29
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141 | (Ok(_), Some(x)) => println!("ok {}", x),
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| ^^^^^^^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:140:29
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140 | (Ok(x), Some(_)) => println!("ok {}", x),
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| ^^^^^^^^^^^^^^^^^^^^
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note: consider refactoring into `(Ok(x), Some(_)) | (Ok(_), Some(x))`
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--> $DIR/matches.rs:140:29
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140 | (Ok(x), Some(_)) => println!("ok {}", x),
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| ^^^^^^^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: this `match` has identical arm bodies
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--> $DIR/matches.rs:156:18
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156 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:155:18
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155 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: consider refactoring into `Ok(3) | Ok(_)`
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--> $DIR/matches.rs:155:18
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155 | Ok(3) => println!("ok"),
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| ^^^^^^^^^^^^^^
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= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
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error: use as_ref() instead
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--> $DIR/matches.rs:163:33
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163 | let borrowed: Option<&()> = match owned {
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| _________________________________^
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164 | | None => None,
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165 | | Some(ref v) => Some(v),
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166 | | };
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| |_____^ help: try this: `owned.as_ref()`
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= note: `-D clippy::match-as-ref` implied by `-D warnings`
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error: use as_mut() instead
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--> $DIR/matches.rs:169:39
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169 | let borrow_mut: Option<&mut ()> = match mut_owned {
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| _______________________________________^
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170 | | None => None,
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171 | | Some(ref mut v) => Some(v),
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172 | | };
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| |_____^ help: try this: `mut_owned.as_mut()`
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error: aborting due to 21 previous errors
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