tests/ui/label/label_misspelled.rs

   1 #![warn(unused_labels)]
   2
   3 fn main() {
   4     'while_loop: while true { //~ WARN denote infinite loops with
   5         //~^ WARN unused label
   6         while_loop;
   7         //~^ ERROR cannot find value `while_loop` in this scope
   8     };
   9     'while_let: while let Some(_) = Some(()) {
  10         //~^ WARN unused label
  11         while_let;
  12         //~^ ERROR cannot find value `while_let` in this scope
  13     }
  14     'for_loop: for _ in 0..3 {
  15         //~^ WARN unused label
  16         for_loop;
  17         //~^ ERROR cannot find value `for_loop` in this scope
  18     };
  19     'LOOP: loop {
  20         //~^ WARN unused label
  21         LOOP;
  22         //~^ ERROR cannot find value `LOOP` in this scope
  23     };
  24 }
  25
  26 fn foo() {
  27     'LOOP: loop {
  28         break LOOP;
  29         //~^ ERROR cannot find value `LOOP` in this scope
  30     };
  31     'while_loop: while true { //~ WARN denote infinite loops with
  32         break while_loop;
  33         //~^ ERROR cannot find value `while_loop` in this scope
  34     };
  35     'while_let: while let Some(_) = Some(()) {
  36         break while_let;
  37         //~^ ERROR cannot find value `while_let` in this scope
  38     }
  39     'for_loop: for _ in 0..3 {
  40         break for_loop;
  41         //~^ ERROR cannot find value `for_loop` in this scope
  42     };
  43 }
  44
  45 fn bar() {
  46     let foo = ();
  47     'while_loop: while true { //~ WARN denote infinite loops with
  48         //~^ WARN unused label
  49         break foo;
  50         //~^ ERROR `break` with value from a `while` loop
  51     };
  52     'while_let: while let Some(_) = Some(()) {
  53         //~^ WARN unused label
  54         break foo;
  55         //~^ ERROR `break` with value from a `while` loop
  56     }
  57     'for_loop: for _ in 0..3 {
  58         //~^ WARN unused label
  59         break foo;
  60         //~^ ERROR `break` with value from a `for` loop
  61     };
  62 }