tests/mir-opt/early_otherwise_branch_68867.rs

   1 // unit-test: EarlyOtherwiseBranch
   2
   3 // FIXME: This test was broken by the derefer change.
   4
   5 // example from #68867
   6 type CSSFloat = f32;
   7
   8 pub enum ViewportPercentageLength {
   9     Vw(CSSFloat),
  10     Vh(CSSFloat),
  11     Vmin(CSSFloat),
  12     Vmax(CSSFloat),
  13 }
  14
  15 // EMIT_MIR early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff
  16 #[no_mangle]
  17 pub extern "C" fn try_sum(
  18     x: &ViewportPercentageLength,
  19     other: &ViewportPercentageLength,
  20 ) -> Result<ViewportPercentageLength, ()> {
  21     use self::ViewportPercentageLength::*;
  22     Ok(match (x, other) {
  23         (&Vw(one), &Vw(other)) => Vw(one + other),
  24         (&Vh(one), &Vh(other)) => Vh(one + other),
  25         (&Vmin(one), &Vmin(other)) => Vmin(one + other),
  26         (&Vmax(one), &Vmax(other)) => Vmax(one + other),
  27         _ => return Err(()),
  28     })
  29 }
  30
  31 fn main() {
  32     try_sum(&ViewportPercentageLength::Vw(1.0), &ViewportPercentageLength::Vw(2.0));
  33 }