src/test/codegen/coverage-experiments/src/for.rs

   1 #[inline(always)]
   2 pub fn __incr_cov<T>(_region_loc: &str, /*index: u32,*/ result: T) -> T {
   3     result
   4 }
   5
   6 fn main() {
   7     for countdown in __incr_cov("start", 10..0) {
   8         let _ = countdown;
   9         __incr_cov("top of for", ());
  10     }
  11 }
  12
  13 // LOWERED TO HIR:
  14 //
  15 // fn main() {
  16 //   {
  17 //       let _t =
  18 //           match ::std::iter::IntoIterator::into_iter(__incr_cov("start",
  19 //                                                                 ::std::ops::Range{start:
  20 //                                                                                       10,
  21 //                                                                                   end:
  22 //                                                                                       0,}))
  23 //               {
  24 //               mut iter =>
  25 //               loop  {
  26 //                   let mut __next;
  27 //                   match ::std::iter::Iterator::next(&mut iter) {
  28 //                       ::std::option::Option::Some(val) =>
  29 //                       __next = val,
  30 //                       ::std::option::Option::None => break ,
  31 //                   }
  32 //                   let countdown = __next;
  33 //                   {
  34 //                       let _ = countdown;
  35 //                       __incr_cov("top of for", ());
  36 //                   }
  37 //               },
  38 //           };
  39 //       _t
  40 //   }
  41 // }