Swift implementation of executable semantics of Carbon.

1. Have Swift installed and in your path.
2. git submodule update --init

make build

make test

make test 2>&1 | sed -Ee 's/.*"(.*)", (.*)\.\.<(.*)\)\).*/\1:\2:{\2-\3}/g'

make Sources/Parser.swift
open Package.swift

Note that if you modify Sources/Parser.citron, or when you pull new changes from GitHub, you'll need to run the make command above again before proceeding.

Try to ensure you've tested all the interesting code paths!

Use these instructions from Xcode, or from the command-line

make test-lcov

to generate .build/coverage.lcov, a standard coverage format. If you use Emacs, you can inspect it using the coverlay package. If you have a different tool that reads the json format created by the swift test command by default, it's

make test-jcov

You'll find the output in .build/debug/codecov/CarbonInterpreter.json.

If you install MinGW, you can use make Sources/Parser.swift followed by swift build or swift test, with the same caveat as for Xcode users: if you modify Sources/Parser.citron, and when you pull new changes from GitHub, you'll need to run the make command again before proceeding. If you don't want to install MinGW, you should be able to read the simple Makefile to figure out how to build citron and use it to "manually" generate Sources/Parser.swift from Sources/Parser.citron.