rust/tests/coverage/while_early_ret.coverage

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LL| |#![allow(unused_assignments)]
LL| |// failure-status: 1
LL| |
LL| 1|fn main() -> Result<(), u8> {
LL| 1| let mut countdown = 10;
LL| | while
LL| 7| countdown
LL| 7| >
LL| 7| 0
LL| | {
LL| | if
LL| 7| countdown
LL| 7| <
LL| 7| 5
LL| | {
LL| | return
LL| | if
LL| 1| countdown
LL| 1| >
LL| 1| 8
LL| | {
LL| 0| Ok(())
LL| | }
LL| | else
LL| | {
LL| 1| Err(1)
LL| | }
LL| | ;
LL| 6| }
LL| 6| countdown
LL| 6| -=
LL| 6| 1
LL| | ;
LL| | }
LL| 0| Ok(())
LL| 1|}
LL| |
LL| |// ISSUE(77553): Originally, this test had `Err(1)` on line 22 (instead of `Ok(())`) and
LL| |// `std::process::exit(2)` on line 26 (instead of `Err(1)`); and this worked as expected on Linux
LL| |// and MacOS. But on Windows (MSVC, at least), the call to `std::process::exit()` exits the program
LL| |// without saving the InstrProf coverage counters. The use of `std::process:exit()` is not critical
LL| |// to the coverage test for early returns, but this is a limitation that should be fixed.