src/test/run-pass/borrowck/two-phase-bin-ops.rs

   1 // run-pass
   2 use std::ops::{AddAssign, SubAssign, MulAssign, DivAssign, RemAssign};
   3 use std::ops::{BitAndAssign, BitOrAssign, BitXorAssign, ShlAssign, ShrAssign};
   4
   5 struct A(i32);
   6
   7 macro_rules! trivial_binop {
   8     ($Trait:ident, $m:ident) => {
   9         impl $Trait<i32> for A { fn $m(&mut self, rhs: i32) { self.0 = rhs; } }
  10     }
  11 }
  12
  13 trivial_binop!(AddAssign, add_assign);
  14 trivial_binop!(SubAssign, sub_assign);
  15 trivial_binop!(MulAssign, mul_assign);
  16 trivial_binop!(DivAssign, div_assign);
  17 trivial_binop!(RemAssign, rem_assign);
  18 trivial_binop!(BitAndAssign, bitand_assign);
  19 trivial_binop!(BitOrAssign, bitor_assign);
  20 trivial_binop!(BitXorAssign, bitxor_assign);
  21 trivial_binop!(ShlAssign, shl_assign);
  22 trivial_binop!(ShrAssign, shr_assign);
  23
  24 fn main() {
  25     let mut a = A(10);
  26     a += a.0;
  27     a -= a.0;
  28     a *= a.0;
  29     a /= a.0;
  30     a &= a.0;
  31     a |= a.0;
  32     a ^= a.0;
  33     a <<= a.0;
  34     a >>= a.0;
  35 }