rust/tests/coverage/while_early_ret.rs

44 lines
1.1 KiB
Rust

#![allow(unused_assignments)]
//@ failure-status: 1
#[rustfmt::skip]
fn main() -> Result<(), u8> {
let mut countdown = 10;
while
countdown
>
0
{
if
countdown
<
5
{
return
if
countdown
>
8
{
Ok(())
}
else
{
Err(1)
}
;
}
countdown
-=
1
;
}
Ok(())
}
// ISSUE(77553): Originally, this test had `Err(1)` on line 22 (instead of `Ok(())`) and
// `std::process::exit(2)` on line 26 (instead of `Err(1)`); and this worked as expected on Linux
// and MacOS. But on Windows (MSVC, at least), the call to `std::process::exit()` exits the program
// without saving the InstrProf coverage counters. The use of `std::process:exit()` is not critical
// to the coverage test for early returns, but this is a limitation that should be fixed.