Using Fennel language with Defold

[aytos]

@TheKing0x9

Forced returns really become a blocker when you start coding gui scripts. Gui Scripts init function throws an error when a return statement is encountered in its init method. As a follow up, the guiscript is not initialized and hence won’t work at all.

I asked about solution for function with empty return (compared to return nil) on Fennel IRC channel. It seems that (values) at the end of function block with no arguments seems to be best solution (thanks mrichards42).

(fn _G.init [self]
    (your_code)
    (values))

This will create return with no arguments in Lua code. Guess this should be used for all callback functions (init(), on_input(), on_message()) for safety reasons.