Global variable cannot be updated in function

[elbywong]

Hi there, I am the newbie of Autoit and deal with some issue when I am implementing the Autoit script. Can anyone help to check whether my concept or implementation is wrong or not? 

I have a <main.au3> file that contains the global variables named as "caseNo" and "caseTitle" which the variables will call in another function file named as <CommonFunc.au3>. But, the variables only able to update within the <main.au3> but not <CommonFunc.au3>.

In <main.au3>, I am trying to update the variables and the log file can show the changes of variables. For example, the string value of "CaseNo" can change from "Case01" into "Case06". However, when I am trying to capture the variables from <CommonFunc.au3> into log file, the variable of "caseNo" and "caseTitle" are both cached in "Case01" and its own title.

Can anyone help to investigate and advise on it? I am so confused and trapped into this issue for two days which I cannot figure out what went wrong....

 

 

 

main.au3

CommonFunc_modified.au3

[jchd]

Do you invoke any function in CommonFunc from either
#include <login.au3> ; case 1
#include <deleteProject.au3> ; case 6
or from some other UDF you include?

If yes, then realize that at this point your global variables aren't declared yet.

[elbywong]

10 minutes ago, jchd said:

Do you invoke any function in CommonFunc from either
#include <login.au3> ; case 1
#include <deleteProject.au3> ; case 6
or from some other UDF you include?

If yes, then realize that at this point your global variables aren't declared yet.

I have included all of the cases and plus with the <CommonFUnc.au3> into the <main.au3> already. I think the global variables suppose declared in <main.au3> and inherit to <CommunFunc.au3> as well 

[jchd]

Stop thinking forward! AutoIt uses an interpretor, it isn't a compiled language.

When AutoIt processes includes up to CommonFunc it has not yet seen declarations placed some lines after that in Main. So there is no "inheritance" possible from line 200 in line 100. When interpretor processes line 100, it can have no idea what's declared in line 200 because it can't "see" forward.

[elbywong]

1 minute ago, jchd said:

Stop thinking forward! AutoIt uses an interpretor, it isn't a compiled language.

When AutoIt processes includes up to CommonFunc it has not yet seen declarations placed some lines after that in Main. So there is no "inheritance" possible from line 200 in line 100. When interpretor processes line 100, it can have no idea what's declared in line 200 because it can't "see" forward.

So, you are now suggesting me to include the case into <CommonFUnc.au3> as well? I am getting a little bit lost 

[jchd]

Only you know what you mean by "case".

What I'm saying is that: in your #includes if you have any active statement (not within a function) referencing variables which are only defined after then you'll fall into "variable not defined" trap.

[Juvigy]

Define and declare ALL your global variables in the beginning of your master script.