Cypress Frankenfeld iamcypress@gmail.com Julian Ceipek julian.ceipek@gmail.com Aman Kapur amankapur91@gmail.com

We present to you JAC, a runtime code injection language.

Run the interpreter:

sml
CM.make "func.cm";
NetShell.netshell 9000;

And in another shell, run the file-watcher:

pip install -r requirements.txt
python watcher.py localhost:9000 

Now create any file with the extension .jac in the same directory as watcher.py. Any time you edit and save this file, the python script will detect that it has changed, and will send the new code to the interpreter, which will detect and insert changes. The interpreter will automatically lex, parse, and evaluate any code it receives from the watcher.