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// This test confirms an earlier problem was resolved, supporting the MIR graph generated by the
// structure of this test.
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct Version {
major: usize,
minor: usize,
patch: usize,
}
impl Version {
pub fn new(major: usize, minor: usize, patch: usize) -> Self {
Self {
major,
minor,
patch,
}
}
}
fn main() {
let version_3_2_1 = Version::new(3, 2, 1);
let version_3_3_0 = Version::new(3, 3, 0);
println!("{:?} < {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 < version_3_3_0);
}
/*
This test verifies a bug was fixed that otherwise generated this error:
thread 'rustc' panicked at 'No counters provided the source_hash for function:
Instance {
def: Item(WithOptConstParam {
did: DefId(0:101 ~ autocfg[c44a]::version::{impl#2}::partial_cmp),
const_param_did: None
}),
substs: []
}'
The `PartialOrd` derived by `Version` happened to generate a MIR that generated coverage
without a code region associated with any `Counter`. Code regions were associated with at least
one expression, which is allowed, but the `function_source_hash` was only passed to the codegen
(coverage mapgen) phase from a `Counter`s code region. A new method was added to pass the
`function_source_hash` without a code region, if necessary.
*/
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