tests/ui/suggestions/return-bindings.stderr

   1 error[E0308]: mismatched types
   2   --> $DIR/return-bindings.rs:3:17
   3    |
   4 LL | fn a(i: i32) -> i32 {}
   5    |    -            ^^^ expected `i32`, found `()`
   6    |    |
   7    |    implicitly returns `()` as its body has no tail or `return` expression
   8    |
   9 help: consider returning the local binding `i`
  10    |
  11 LL | fn a(i: i32) -> i32 { i }
  12    |                       +
  13
  14 error[E0308]: mismatched types
  15   --> $DIR/return-bindings.rs:7:46
  16    |
  17 LL |       let s: String = if let Some(s) = opt_str {
  18    |  ______________________________________________^
  19 LL | |
  20 LL | |     } else {
  21    | |_____^ expected struct `String`, found `()`
  22    |
  23 help: consider returning the local binding `s`
  24    |
  25 LL ~     let s: String = if let Some(s) = opt_str {
  26 LL +         s
  27 LL ~
  28    |
  29
  30 error[E0308]: mismatched types
  31   --> $DIR/return-bindings.rs:14:11
  32    |
  33 LL | fn c() -> Option<i32> {
  34    |    -      ^^^^^^^^^^^ expected enum `Option`, found `()`
  35    |    |
  36    |    implicitly returns `()` as its body has no tail or `return` expression
  37    |
  38    = note:   expected enum `Option<i32>`
  39            found unit type `()`
  40 help: consider returning the local binding `x`
  41    |
  42 LL ~     let x = Some(1);
  43 LL +     x
  44    |
  45
  46 error[E0308]: mismatched types
  47   --> $DIR/return-bindings.rs:20:46
  48    |
  49 LL |       let s: String = if let Some(s) = opt_str {
  50    |  ______________________________________________^
  51 LL | |
  52 LL | |     } else {
  53    | |_____^ expected struct `String`, found `()`
  54    |
  55 help: consider returning the local binding `s`
  56    |
  57 LL ~     let s: String = if let Some(s) = opt_str {
  58 LL +         s
  59 LL ~
  60    |
  61
  62 error[E0308]: `if` and `else` have incompatible types
  63   --> $DIR/return-bindings.rs:30:9
  64    |
  65 LL |       let s = if let Some(s) = opt_str {
  66    |  ______________________________________-
  67 LL | |     } else {
  68    | |_____- expected because of this
  69 LL |           String::new()
  70    |           ^^^^^^^^^^^^^ expected `()`, found struct `String`
  71    |
  72 help: consider returning the local binding `s`
  73    |
  74 LL ~     let s = if let Some(s) = opt_str {
  75 LL +         s
  76 LL ~     } else {
  77    |
  78
  79 error[E0308]: mismatched types
  80   --> $DIR/return-bindings.rs:37:20
  81    |
  82 LL |         Some(s) => {}
  83    |                    ^^ expected struct `String`, found `()`
  84    |
  85 help: consider returning the local binding `s`
  86    |
  87 LL |         Some(s) => { s }
  88    |                      +
  89
  90 error[E0308]: `match` arms have incompatible types
  91   --> $DIR/return-bindings.rs:46:17
  92    |
  93 LL |       let s = match opt_str {
  94    |  _____________-
  95 LL | |         Some(s) => {}
  96    | |                    -- this is found to be of type `()`
  97 LL | |         None => String::new(),
  98    | |                 ^^^^^^^^^^^^^ expected `()`, found struct `String`
  99 LL | |
 100 LL | |     };
 101    | |_____- `match` arms have incompatible types
 102    |
 103 help: consider returning the local binding `s`
 104    |
 105 LL |         Some(s) => { s }
 106    |                      +
 107
 108 error: aborting due to 7 previous errors
 109
 110 For more information about this error, try `rustc --explain E0308`.