cargo-llvm-cov

Rust: Cargo subcommand to easily use LLVM source-based code coverage

cargo-llvm-cov is a Cargo subcommand to easily use LLVM source-based code coverage. This is a wrapper around rustc instrument-coverage command and provides: - Generate very precise coverage data. (line, region, and branch coverage. branch coverage is currently optional and requires nightly, etc) - Support `cargo test`, `cargo run`, and `cargo nextest` with command-line interface compatible with cargo. - Support for proc-macro, including coverage of UI tests. - Support for doc tests. (this is currently optional and requires nightly. - Fast because it does not introduce extra layers between rustc, cargo, and llvm-tools.