src/test/ui/span/issue-39018.rs

   1 pub fn main() {
   2     let x = "Hello " + "World!";
   3     //~^ ERROR cannot add
   4
   5     // Make sure that the span outputs a warning
   6     // for not having an implementation for std::ops::Add
   7     // that won't output for the above string concatenation
   8     let y = World::Hello + World::Goodbye;
   9     //~^ ERROR cannot add
  10
  11     let x = "Hello " + "World!".to_owned();
  12     //~^ ERROR cannot add
  13 }
  14
  15 enum World {
  16     Hello,
  17     Goodbye,
  18 }
  19
  20 fn foo() {
  21     let a = String::new();
  22     let b = String::new();
  23     let c = "";
  24     let d = "";
  25     let e = &a;
  26     let _ = &a + &b; //~ ERROR cannot add
  27     let _ = &a + b; //~ ERROR cannot add
  28     let _ = a + &b; // ok
  29     let _ = a + b; //~ ERROR mismatched types
  30     let _ = e + b; //~ ERROR cannot add
  31     let _ = e + &b; //~ ERROR cannot add
  32     let _ = e + d; //~ ERROR cannot add
  33     let _ = e + &d; //~ ERROR cannot add
  34     let _ = &c + &d; //~ ERROR cannot add
  35     let _ = &c + d; //~ ERROR cannot add
  36     let _ = c + &d; //~ ERROR cannot add
  37     let _ = c + d; //~ ERROR cannot add
  38 }