3f72d4d630
There's only one test currently. I also updated the lint doc with a 'good' example and changed the lint help text a bit. cc #2038
283 lines
8.7 KiB
Plaintext
283 lines
8.7 KiB
Plaintext
error: you don't need to add `&` to all patterns
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--> $DIR/matches.rs:26:9
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26 | / match v {
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27 | | &Some(v) => println!("{:?}", v),
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28 | | &None => println!("none"),
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29 | | }
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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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26 | match *v {
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27 | Some(v) => println!("{:?}", v),
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28 | None => println!("none"),
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error: you don't need to add `&` to all patterns
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--> $DIR/matches.rs:36:5
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36 | / match tup {
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37 | | &(v, 1) => println!("{}", v),
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38 | | _ => println!("none"),
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39 | | }
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| |_____^
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help: instead of prefixing all patterns with `&`, you can dereference the expression
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36 | match *tup {
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37 | (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:42:5
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42 | / match &w {
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43 | | &Some(v) => println!("{:?}", v),
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44 | | &None => println!("none"),
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45 | | }
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| |_____^
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help: try
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42 | match w {
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43 | Some(v) => println!("{:?}", v),
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44 | None => println!("none"),
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error: you don't need to add `&` to all patterns
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--> $DIR/matches.rs:53:5
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53 | / if let &None = a {
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54 | | println!("none");
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55 | | }
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| |_____^
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help: instead of prefixing all patterns with `&`, you can dereference the expression
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53 | 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:58:5
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58 | / if let &None = &b {
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59 | | println!("none");
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60 | | }
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| |_____^
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help: try
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58 | 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:69:9
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69 | 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:68:18
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68 | 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:67:18
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67 | 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:67:18
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67 | 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:75:9
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75 | 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:74:18
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74 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:73:18
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73 | 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:73:18
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73 | 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:81:9
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81 | 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:80:18
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80 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:79:18
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79 | 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:79:18
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79 | 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:87:18
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87 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:86:18
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86 | 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:86:18
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86 | 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: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:100:18
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100 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:99:18
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99 | 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:99:18
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99 | 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:106:18
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106 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:105:18
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105 | 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:105:18
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105 | 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:127:29
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127 | (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:126:29
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126 | (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:126:29
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126 | (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:142:18
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142 | Ok(_) => println!("ok"),
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| ^^^^^^^^^^^^^^
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note: same as this
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--> $DIR/matches.rs:141:18
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141 | 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:141:18
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141 | 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:149:33
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149 | let borrowed: Option<&()> = match owned {
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| _________________________________^
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150 | | None => None,
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151 | | Some(ref v) => Some(v),
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152 | | };
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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:155:39
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155 | let borrow_mut: Option<&mut ()> = match mut_owned {
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| _______________________________________^
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156 | | None => None,
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157 | | Some(ref mut v) => Some(v),
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158 | | };
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| |_____^ help: try this: `mut_owned.as_mut()`
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error: aborting due to 19 previous errors
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