Newbie question, but how does AutoIT read the script?

So I got this script with Some while, some Ifs and some functions.

I am curious how AutoIT reads them? Can autoIT read two segments of a script file at the same time or does it only go through step by step?

Like for example If I do something like this:


example()
example2()

Func example
while
----Some code here
wend
endfunc
func example2
While
---Some code here
wend
endfunc

My question is basically, if I call "example" will autoIT only read within the functions While-Wend or will it also execute Example2 and read those while/wends at the same time?

Maybe my explanation is bad, if so ill try and correct it.
Thanks for any answers.