A swift port/variation following on the content from Bob Nystrom's Crafting Interpreters
This is a hobby project to go through the book and do some learning, so don't count on anything here.
You can open Package.swift in Xcode and run tests there and inspect code coverage. If you want to run do this all from the command line (or a CI pipeline), then I've made a script to make this easier.
./codecov-report.sh
Runs the tests with --enable-code-coverage, and using xcrun to determine a location (macOS only currently) for the binary and uses llvm-cov and lcov to generate an HTML report in the directory coverage.
To set up CLI tooling (lcov) for the report generation:
brew install lcov
docker run -it --rm --platform linux/amd64 -v "$PWD:$PWD" -w "$PWD" -e QEMU_CPU=max swift:5.3 swift test