src/test/ui/borrowck/borrowck-uninit-in-assignop.rs

   1 // Tests that the use of uninitialized variable in assignment operator
   2 // expression is detected.
   3
   4 pub fn main() {
   5     let x: isize;
   6     x += 1; //~ ERROR use of possibly-uninitialized variable: `x`
   7
   8     let x: isize;
   9     x -= 1; //~ ERROR use of possibly-uninitialized variable: `x`
  10
  11     let x: isize;
  12     x *= 1; //~ ERROR use of possibly-uninitialized variable: `x`
  13
  14     let x: isize;
  15     x /= 1; //~ ERROR use of possibly-uninitialized variable: `x`
  16
  17     let x: isize;
  18     x %= 1; //~ ERROR use of possibly-uninitialized variable: `x`
  19
  20     let x: isize;
  21     x ^= 1; //~ ERROR use of possibly-uninitialized variable: `x`
  22
  23     let x: isize;
  24     x &= 1; //~ ERROR use of possibly-uninitialized variable: `x`
  25
  26     let x: isize;
  27     x |= 1; //~ ERROR use of possibly-uninitialized variable: `x`
  28
  29     let x: isize;
  30     x <<= 1;    //~ ERROR use of possibly-uninitialized variable: `x`
  31
  32     let x: isize;
  33     x >>= 1;    //~ ERROR use of possibly-uninitialized variable: `x`
  34 }