rust/tests/run-coverage/simple_match.coverage

    1|       |#![allow(unused_assignments, unused_variables)]
    2|       |
    3|      1|fn main() {
    4|      1|    // Initialize test constants in a way that cannot be determined at compile time, to ensure
    5|      1|    // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
    6|      1|    // dependent conditions.
    7|      1|    let is_true = std::env::args().len() == 1;
    8|      1|
    9|      1|    let mut countdown = 1;
   10|      1|    if is_true {
   11|      1|        countdown = 0;
   12|      1|    }
                   ^0
   13|       |
   14|       |    for
   15|       |        _
   16|       |    in
   17|      3|        0..2
   18|       |    {
   19|       |        let z
   20|       |        ;
   21|       |        match
   22|      2|            countdown
   23|       |        {
   24|      1|            x
   25|       |            if
   26|      2|                x
   27|      2|                    <
   28|      2|                1
   29|       |            =>
   30|      1|            {
   31|      1|                z = countdown
   32|      1|                ;
   33|      1|                let y = countdown
   34|      1|                ;
   35|      1|                countdown = 10
   36|      1|                ;
   37|      1|            }
   38|       |            _
   39|       |            =>
   40|      1|            {}
   41|       |        }
   42|       |    }
   43|      1|}