rust/tests/ui/matches.stderr

error: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
  --> $DIR/matches.rs:21:5
   |
21 | /     match ExprNode::Butterflies {
22 | |         ExprNode::ExprAddrOf => Some(&NODE),
23 | |         _ => { let x = 5; None },
24 | |     }
   | |_____^ help: try this: `if let ExprNode::ExprAddrOf = ExprNode::Butterflies { Some(&NODE) } else { let x = 5; None }`
   |
   = note: `-D single-match-else` implied by `-D warnings`

error: this boolean expression can be simplified
  --> $DIR/matches.rs:51:11
   |
51 |     match test && test {
   |           ^^^^^^^^^^^^ help: try: `test`
   |
   = note: `-D nonminimal-bool` implied by `-D warnings`

error: you seem to be trying to match on a boolean expression
  --> $DIR/matches.rs:30:5
   |
30 | /     match test {
31 | |         true => 0,
32 | |         false => 42,
33 | |     };
   | |_____^ help: consider using an if/else expression: `if test { 0 } else { 42 }`
   |
   = note: `-D match-bool` implied by `-D warnings`

error: you seem to be trying to match on a boolean expression
  --> $DIR/matches.rs:36:5
   |
36 | /     match option == 1 {
37 | |         true => 1,
38 | |         false => 0,
39 | |     };
   | |_____^ help: consider using an if/else expression: `if option == 1 { 1 } else { 0 }`

error: you seem to be trying to match on a boolean expression
  --> $DIR/matches.rs:41:5
   |
41 | /     match test {
42 | |         true => (),
43 | |         false => { println!("Noooo!"); }
44 | |     };
   | |_____^ help: consider using an if/else expression: `if !test { println!("Noooo!"); }`

error: you seem to be trying to match on a boolean expression
  --> $DIR/matches.rs:46:5
   |
46 | /     match test {
47 | |         false => { println!("Noooo!"); }
48 | |         _ => (),
49 | |     };
   | |_____^ help: consider using an if/else expression: `if !test { println!("Noooo!"); }`

error: you seem to be trying to match on a boolean expression
  --> $DIR/matches.rs:51:5
   |
51 | /     match test && test {
52 | |         false => { println!("Noooo!"); }
53 | |         _ => (),
54 | |     };
   | |_____^ help: consider using an if/else expression: `if !(test && test) { println!("Noooo!"); }`

error: equal expressions as operands to `&&`
  --> $DIR/matches.rs:51:11
   |
51 |     match test && test {
   |           ^^^^^^^^^^^^
   |
   = note: `-D eq-op` implied by `-D warnings`

error: you seem to be trying to match on a boolean expression
  --> $DIR/matches.rs:56:5
   |
56 | /     match test {
57 | |         false => { println!("Noooo!"); }
58 | |         true => { println!("Yes!"); }
59 | |     };
   | |_____^ help: consider using an if/else expression: `if test { println!("Yes!"); } else { println!("Noooo!"); }`

error: you don't need to add `&` to all patterns
  --> $DIR/matches.rs:72:9
   |
72 | /         match v {
73 | |             &Some(v) => println!("{:?}", v),
74 | |             &None => println!("none"),
75 | |         }
   | |_________^
   |
   = note: `-D match-ref-pats` implied by `-D warnings`
help: instead of prefixing all patterns with `&`, you can dereference the expression
   |
72 |         match *v {
73 |             Some(v) => println!("{:?}", v),
74 |             None => println!("none"),
   |

error: you don't need to add `&` to all patterns
  --> $DIR/matches.rs:82:5
   |
82 | /     match tup {
83 | |         &(v, 1) => println!("{}", v),
84 | |         _ => println!("none"),
85 | |     }
   | |_____^
help: instead of prefixing all patterns with `&`, you can dereference the expression
   |
82 |     match *tup {
83 |         (v, 1) => println!("{}", v),
   |

error: you don't need to add `&` to both the expression and the patterns
  --> $DIR/matches.rs:88:5
   |
88 | /     match &w {
89 | |         &Some(v) => println!("{:?}", v),
90 | |         &None => println!("none"),
91 | |     }
   | |_____^
help: try
   |
88 |     match w {
89 |         Some(v) => println!("{:?}", v),
90 |         None => println!("none"),
   |

error: you don't need to add `&` to all patterns
   --> $DIR/matches.rs:99:5
    |
99  | /     if let &None = a {
100 | |         println!("none");
101 | |     }
    | |_____^
help: instead of prefixing all patterns with `&`, you can dereference the expression
    |
99  |     if let None = *a {
    |

error: you don't need to add `&` to both the expression and the patterns
   --> $DIR/matches.rs:104:5
    |
104 | /     if let &None = &b {
105 | |         println!("none");
106 | |     }
    | |_____^
help: try
    |
104 |     if let None = b {
    |

error: some ranges overlap
   --> $DIR/matches.rs:113:9
    |
113 |         0 ... 10 => println!("0 ... 10"),
    |         ^^^^^^^^
    |
    = note: `-D match-overlapping-arm` implied by `-D warnings`
note: overlaps with this
   --> $DIR/matches.rs:114:9
    |
114 |         0 ... 11 => println!("0 ... 11"),
    |         ^^^^^^^^

error: some ranges overlap
   --> $DIR/matches.rs:119:9
    |
119 |         0 ... 5 => println!("0 ... 5"),
    |         ^^^^^^^
    |
note: overlaps with this
   --> $DIR/matches.rs:121:9
    |
121 |         FOO ... 11 => println!("0 ... 11"),
    |         ^^^^^^^^^^

error: some ranges overlap
   --> $DIR/matches.rs:127:9
    |
127 |         0 ... 5 => println!("0 ... 5"),
    |         ^^^^^^^
    |
note: overlaps with this
   --> $DIR/matches.rs:126:9
    |
126 |         2 => println!("2"),
    |         ^

error: some ranges overlap
   --> $DIR/matches.rs:133:9
    |
133 |         0 ... 2 => println!("0 ... 2"),
    |         ^^^^^^^
    |
note: overlaps with this
   --> $DIR/matches.rs:132:9
    |
132 |         2 => println!("2"),
    |         ^

error: some ranges overlap
   --> $DIR/matches.rs:156:9
    |
156 |         0 .. 11 => println!("0 .. 11"),
    |         ^^^^^^^
    |
note: overlaps with this
   --> $DIR/matches.rs:157:9
    |
157 |         0 ... 11 => println!("0 ... 11"),
    |         ^^^^^^^^

error: Err(_) will match all errors, maybe not a good idea
   --> $DIR/matches.rs:174:9
    |
174 |         Err(_) => panic!("err")
    |         ^^^^^^
    |
    = note: `-D match-wild-err-arm` implied by `-D warnings`
    = note: to remove this warning, match each error seperately or use unreachable macro

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:173:18
    |
173 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
    = note: `-D match-same-arms` implied by `-D warnings`
note: same as this
   --> $DIR/matches.rs:172:18
    |
172 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:172:18
    |
172 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: Err(_) will match all errors, maybe not a good idea
   --> $DIR/matches.rs:180:9
    |
180 |         Err(_) => {panic!()}
    |         ^^^^^^
    |
    = note: to remove this warning, match each error seperately or use unreachable macro

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:179:18
    |
179 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:178:18
    |
178 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:178:18
    |
178 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: Err(_) will match all errors, maybe not a good idea
   --> $DIR/matches.rs:186:9
    |
186 |         Err(_) => {panic!();}
    |         ^^^^^^
    |
    = note: to remove this warning, match each error seperately or use unreachable macro

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:185:18
    |
185 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:184:18
    |
184 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:184:18
    |
184 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:192:18
    |
192 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:191:18
    |
191 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:191:18
    |
191 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:199:18
    |
199 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:198:18
    |
198 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:198:18
    |
198 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:205:18
    |
205 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:204:18
    |
204 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:204:18
    |
204 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:211:18
    |
211 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:210:18
    |
210 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:210:18
    |
210 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:232:29
    |
232 |         (Ok(_), Some(x)) => println!("ok {}", x),
    |                             ^^^^^^^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:231:29
    |
231 |         (Ok(x), Some(_)) => println!("ok {}", x),
    |                             ^^^^^^^^^^^^^^^^^^^^
note: consider refactoring into `(Ok(x), Some(_)) | (Ok(_), Some(x))`
   --> $DIR/matches.rs:231:29
    |
231 |         (Ok(x), Some(_)) => println!("ok {}", x),
    |                             ^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: this `match` has identical arm bodies
   --> $DIR/matches.rs:247:18
    |
247 |         Ok(_) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    |
note: same as this
   --> $DIR/matches.rs:246:18
    |
246 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
note: consider refactoring into `Ok(3) | Ok(_)`
   --> $DIR/matches.rs:246:18
    |
246 |         Ok(3) => println!("ok"),
    |                  ^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: use as_ref() instead
   --> $DIR/matches.rs:254:33
    |
254 |       let borrowed: Option<&()> = match owned {
    |  _________________________________^
255 | |         None => None,
256 | |         Some(ref v) => Some(v),
257 | |     };
    | |_____^ help: try this: `owned.as_ref()`
    |
    = note: `-D match-as-ref` implied by `-D warnings`

error: use as_mut() instead
   --> $DIR/matches.rs:260:39
    |
260 |       let borrow_mut: Option<&mut ()> = match mut_owned {
    |  _______________________________________^
261 | |         None => None,
262 | |         Some(ref mut v) => Some(v),
263 | |     };
    | |_____^ help: try this: `mut_owned.as_mut()`

error: aborting due to 33 previous errors