Scope operators?

[IAMK]

In c++, I can use :: to refer to a variable with the same name 1 level up. How do I do this in AutoIT?

Example code:

Script.au3:

#include "Function.au3"

Global $number = 0

incrementNumber(5)

Function.au3:

Func incrementNumber($number)
    ::$number = $number + 1
EndFunc

Thank you in advance.

[kaisies]

Global means any function can directly access. Variables as parameters are local only. You can use byref like func(byref $v) to refer to a variable with its local name, but effect the global value. 

Edited November 16, 2018 by kaisies

[IAMK]

@kaisies That won't work here.

1- There is a global variable and a local variable with the same name.
2- I do not want to pass the variable ByRef.

Think of it this way:
You have a set of buttons you can press. 1, 2, 3, 4 and 5.
You use PressNextButton(ByRef $buttonNum) to press button 1, then increment and press button 2, then 3, etc...
You also can pass any number you want to e.g. PressButton(4) which will press button 4, but then when you use PressNextButton(ByRef $buttonNum) it will continue from the last button you pressed using PressNextButton().

Think of it as a script where you can press any button you want by using PressButton($num), but at the end of the day, you need to use PressNextButton(ByRef $num) to navigate through all the buttons.

Note: I do not wish to change any parameters or variables. I just want to make it explicit that I am scoping the global variable over the local variable.

[BrewManNH]

11 hours ago, IAMK said:

I just want to make it explicit that I am scoping the global variable over the local variable.

That's not possible in AutoIt. If you have a global variable and a local variable with the same name and act on the variable name, you're acting on the local version of it. 

Global $Variable1 = 1
Test($Variable1)
ConsoleWrite("$Variable1 = " & $Variable1 & " outside the function" & @CRLF)
Func Test($Variable1)
    $Variable1 += 1
    ConsoleWrite("$Variable1 = " & $Variable1 & " inside the function" & @CRLF)
EndFunc   ;==>Test

 

[IAMK]

@BrewManNH　Well, that's lame. Guess I have to start naming my variables differently in function files and pass an extra variable into my function.

Thanks.

Edited November 16, 2018 by IAMK

[Earthshine]

Well this isn’t c++

TonyC?