Factorio Combinator Compiler

The only supported types right now are:

int a 32 bit integer, the same type that factorio uses for signals.
boolean either true or false.
n-tuple. Tuples are a typed, fixed-size, ordered list of elements. E.g. (int, boolean, (int, int)) is a tuple with 3 values. First, an int, second a boolean, third another tuple (int, int).
fixedp<N> is a 32 bit binary fixed point number in the Q(32-N).N format (https://en.wikipedia.org/wiki/Q_(number_format))
Arrays of types that are 32bit wide. I.e. int[] or fixedp<N>[].

The return statement must the last statement in a function. Right now that's not enforced, but having multiple return statements, or returning in a while loop will break things.
Function calls to void functions don't work correctly

ToDo