HKCD is executing using the following command:
js lib/main.js [INPUT_FILE]
You can also pass the -d flag to print out debug information.
HKCD is made up of three basic modules: Parser, TypeChecker, CodeGenerator. Each of the modules can be executed individually using the same syntax as specified above (replacing main.js with the module name). There is also a Compiler module which simply drives the execution of the three individual modules (main.js is just a wrapper around Compiler.js).