rust/tests/coverage/issue-93054.rs

31 lines
643 B
Rust

#![allow(dead_code, unreachable_code)]
// Regression test for #93054: Functions using uninhabited types often only have a single,
// unreachable basic block which doesn't get instrumented. This should not cause llvm-cov to fail.
// Since these kinds functions can't be invoked anyway, it's ok to not have coverage data for them.
// compile-flags: --edition=2021
enum Never {}
impl Never {
fn foo(self) {
match self {}
make().map(|never| match never {});
}
fn bar(&self) {
match *self {}
}
}
async fn foo2(never: Never) {
match never {}
}
fn make() -> Option<Never> {
None
}
fn main() {}