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2025-05-06coverage: Only merge adjacent coverage spansZalathar-6/+7
This also removes some manipulation of the function signature span that only made sense in the context of merging non-adjacent spans.
2025-05-06coverage-dump: Dump filenames instead of global file IDs (and bless)Zalathar-2/+2
2025-01-16coverage: Completely overhaul counter assignment, using node-flow graphsZalathar-4/+6
2024-12-23Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, ↵Zalathar-4/+4
r=wesleywiser" This reverts commit 1d35638dc38dbfbf1cc2a9823135dfcf3c650169, reversing changes made to f23a80a4c2fbca593b64e70f5970368824b4c5e9.
2024-12-16Stabilize #[coverage] attributeltdk-4/+4
2024-12-05Stabilize noop_wakerEric Holk-4/+4
Co-authored-by: zachs18 <8355914+zachs18@users.noreply.github.com>
2024-10-11coverage: Include the highest counter ID seen in `.cov-map` dumpsZalathar-0/+2
When making changes that have a large impact on coverage counter creation, this makes it easier to see whether the number of physical counters has changed. (The highest counter ID seen in coverage maps is not necessarily the same as the number of physical counters actually used by the instrumented code, but it's the best approximation we can get from looking only at the coverage maps, and it should be reasonably accurate in most cases.)
2024-09-10coverage: Extract `executor::block_on` from several async coverage testsZalathar-12/+4
By moving `block_on` to an auxiliary crate, we avoid having to keep a separate copy of it in every async test. (This also incorporates some small tweaks to the headers in `await_ready.rs`.)
2024-09-06coverage: Treat await similar to a macroJonathan Conder-5/+4
Currently `await` is only counted towards coverage if the containing function is suspended and resumed at least once. This is because it expands to code which contains a branch on the discriminant of `Poll`. By treating it like a branching macro (e.g. `assert!`), these implementation details will be hidden from the coverage results.
2024-09-06coverage: Add test to codify existing behaviorJonathan Conder-0/+26
Currently `await` is only counted towards coverage if the containing function is suspended and resumed at least once. A future commit will fix this and update the test to reflect the new behavior.