So it's essentially saving you the trouble of having to put code into an "int main()" and putting declarations before it?
And then attempt to run the code after every line you type. Are there other examples of REPLs that work like this rather than all the state of execution being held in the REPL like I imagine Python does do it?
Can it Tab-complete identifiers I introduce in it? Actually, I suppose it's a single 115 LoC bash script, and I really don't mean to dunk on it, it's a neat little experiment. It just kinda made me wonder what REPLs are made for, for the first time. :D
Like I imagine a very basic "interactive" coding session (for any language) could also be achieved by having an editor open and saving after each line, or having that done automatically, and then in another terminal some script watches for those changes and compiles/interprets/runs it.
A REPL like python's is more like... having a debugger attached to your program, but it just sits at a breakpoint and let's you tell it what code to run next, and you can inspect variable contents and such.
Seems like languages that compile to machine code don't work all that well for REPLing, eh.