src/test/run-make/coverage-reports/expected_show_coverage.partial_eq.txt

   1     1|       |// This test confirms an earlier problem was resolved, supporting the MIR graph generated by the
   2     2|       |// structure of this test.
   3     3|       |
   4     4|      2|#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
   5                        ^0            ^0      ^0     ^1       ^1 ^0^0
   6   ------------------
   7   | Unexecuted instantiation: <partial_eq::Version as core::cmp::PartialEq>::ne
   8   ------------------
   9   | Unexecuted instantiation: <partial_eq::Version as core::cmp::PartialEq>::eq
  10   ------------------
  11     5|       |pub struct Version {
  12     6|       |    major: usize,
  13     7|       |    minor: usize,
  14     8|       |    patch: usize,
  15     9|       |}
  16    10|       |
  17    11|       |impl Version {
  18    12|      2|    pub fn new(major: usize, minor: usize, patch: usize) -> Self {
  19    13|      2|        Self {
  20    14|      2|            major,
  21    15|      2|            minor,
  22    16|      2|            patch,
  23    17|      2|        }
  24    18|      2|    }
  25    19|       |}
  26    20|       |
  27    21|      1|fn main() {
  28    22|      1|    let version_3_2_1 = Version::new(3, 2, 1);
  29    23|      1|    let version_3_3_0 = Version::new(3, 3, 0);
  30    24|      1|
  31    25|      1|    println!("{:?} < {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 < version_3_3_0);
  32    26|      1|}
  33    27|       |
  34    28|       |/*
  35    29|       |
  36    30|       |This test verifies a bug was fixed that otherwise generated this error:
  37    31|       |
  38    32|       |thread 'rustc' panicked at 'No counters provided the source_hash for function:
  39    33|       |    Instance {
  40    34|       |        def: Item(WithOptConstParam {
  41    35|       |            did: DefId(0:101 ~ autocfg[c44a]::version::{impl#2}::partial_cmp),
  42    36|       |            const_param_did: None
  43    37|       |        }),
  44    38|       |        substs: []
  45    39|       |    }'
  46    40|       |The `PartialOrd` derived by `Version` happened to generate a MIR that generated coverage
  47    41|       |without a code region associated with any `Counter`. Code regions were associated with at least
  48    42|       |one expression, which is allowed, but the `function_source_hash` was only passed to the codegen
  49    43|       |(coverage mapgen) phase from a `Counter`s code region. A new method was added to pass the
  50    44|       |`function_source_hash` without a code region, if necessary.
  51    45|       |
  52    46|       |*/
  53