src/test/ui/suggestions/as-ref.stderr

   1 error[E0308]: mismatched types
   2   --> $DIR/as-ref.rs:7:29
   3    |
   4 LL |     opt.map(|arg| takes_ref(arg));
   5    |         ---       --------- ^^^ expected `&Foo`, found struct `Foo`
   6    |         |         |
   7    |         |         arguments to this function are incorrect
   8    |         help: consider using `as_ref` instead: `as_ref().map`
   9    |
  10 note: function defined here
  11   --> $DIR/as-ref.rs:3:4
  12    |
  13 LL | fn takes_ref(_: &Foo) {}
  14    |    ^^^^^^^^^ -------
  15
  16 error[E0308]: mismatched types
  17   --> $DIR/as-ref.rs:8:39
  18    |
  19 LL |     opt.and_then(|arg| Some(takes_ref(arg)));
  20    |         --------            --------- ^^^ expected `&Foo`, found struct `Foo`
  21    |         |                   |
  22    |         |                   arguments to this function are incorrect
  23    |         help: consider using `as_ref` instead: `as_ref().and_then`
  24    |
  25 note: function defined here
  26   --> $DIR/as-ref.rs:3:4
  27    |
  28 LL | fn takes_ref(_: &Foo) {}
  29    |    ^^^^^^^^^ -------
  30
  31 error[E0308]: mismatched types
  32   --> $DIR/as-ref.rs:10:29
  33    |
  34 LL |     opt.map(|arg| takes_ref(arg));
  35    |         ---       --------- ^^^ expected `&Foo`, found struct `Foo`
  36    |         |         |
  37    |         |         arguments to this function are incorrect
  38    |         help: consider using `as_ref` instead: `as_ref().map`
  39    |
  40 note: function defined here
  41   --> $DIR/as-ref.rs:3:4
  42    |
  43 LL | fn takes_ref(_: &Foo) {}
  44    |    ^^^^^^^^^ -------
  45
  46 error[E0308]: mismatched types
  47   --> $DIR/as-ref.rs:11:37
  48    |
  49 LL |     opt.and_then(|arg| Ok(takes_ref(arg)));
  50    |         --------          --------- ^^^ expected `&Foo`, found struct `Foo`
  51    |         |                 |
  52    |         |                 arguments to this function are incorrect
  53    |         help: consider using `as_ref` instead: `as_ref().and_then`
  54    |
  55 note: function defined here
  56   --> $DIR/as-ref.rs:3:4
  57    |
  58 LL | fn takes_ref(_: &Foo) {}
  59    |    ^^^^^^^^^ -------
  60
  61 error[E0308]: mismatched types
  62   --> $DIR/as-ref.rs:13:29
  63    |
  64 LL |     let y: Option<&usize> = x;
  65    |            --------------   ^
  66    |            |                |
  67    |            |                expected enum `Option`, found `&Option<usize>`
  68    |            |                help: you can convert from `&Option<T>` to `Option<&T>` using `.as_ref()`: `x.as_ref()`
  69    |            expected due to this
  70    |
  71    = note:   expected enum `Option<&usize>`
  72            found reference `&Option<usize>`
  73
  74 error[E0308]: mismatched types
  75   --> $DIR/as-ref.rs:15:37
  76    |
  77 LL |     let y: Result<&usize, &usize> = x;
  78    |            ----------------------   ^ expected enum `Result`, found reference
  79    |            |
  80    |            expected due to this
  81    |
  82    = note:   expected enum `Result<&usize, &usize>`
  83            found reference `&Result<usize, usize>`
  84 help: you can convert from `&Result<T, E>` to `Result<&T, &E>` using `.as_ref()`
  85    |
  86 LL |     let y: Result<&usize, &usize> = x.as_ref();
  87    |                                     ~~~~~~~~~~
  88
  89 error[E0308]: mismatched types
  90   --> $DIR/as-ref.rs:19:36
  91    |
  92 LL |     let y: Result<&usize, usize> = x;
  93    |            ---------------------   ^ expected enum `Result`, found reference
  94    |            |
  95    |            expected due to this
  96    |
  97    = note:   expected enum `Result<&usize, usize>`
  98            found reference `&Result<usize, usize>`
  99
 100 error: aborting due to 7 previous errors
 101
 102 For more information about this error, try `rustc --explain E0308`.