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jaberwacky

Question about AU3Check result.

8 posts in this topic

When I run AU3Check on this line:

GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM, 0, "Segoe UI", $main_gui, $CLEARTYPE_QUALITY)

I get this result:

>"C:\Program Files (x86)\AutoIt3\SciTE\AutoIt3Wrapper\AutoIt3Wrapper.exe" /run /prod /ErrorStdOut /in "D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3" /UserParams    
+>10:12:41 Starting AutoIt3Wrapper v.2.2.0.2 SciTE v.3.4.1.0   Keyboard:00000409  OS:WIN_7/Service Pack 1  CPU:X64 OS:X64    Environment(Language:0409)
+>         SciTEDir => C:\Program Files (x86)\AutoIt3\SciTE   UserDir => C:\Users\Matthew\AppData\Local\AutoIt v3\SciTE\AutoIt3Wrapper   SCITE_USERHOME => C:\Users\Matthew\AppData\Local\AutoIt v3\SciTE 
>Running AU3Check (3.3.13.0)  from:C:\Program Files (x86)\AutoIt3  input:D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3
"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,55) : warning: $FW_MEDIUM: possibly used before declaration.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,101) : warning: $CLEARTYPE_QUALITY: possibly used before declaration.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM, 0, "Segoe UI", $main_gui, $CLEARTYPE_QUALITY)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,55) : error: $FW_MEDIUM: undeclared global variable.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,101) : error: $CLEARTYPE_QUALITY: undeclared global variable.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM, 0, "Segoe UI", $main_gui, $CLEARTYPE_QUALITY)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3 - 2 error(s), 2 warning(s)
!>10:12:42 AU3Check ended. Press F4 to jump to next error.rc:2
+>10:12:42 AutoIt3Wrapper Finished.
>Exit code: 2    Time: 1.139

Two warnings and two errors about the same two issues.  Is this to be expected?

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#2 ·  Posted (edited)

First you have two time info about "possibly used before declaration":

>Running AU3Check (3.3.13.0)  from:C:\Program Files (x86)\AutoIt3  input:D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3
"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,55) : warning: $FW_MEDIUM: possibly used before declaration.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,101) : warning: $CLEARTYPE_QUALITY: possibly used before declaration.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM, 0, "Segoe UI", $main_gui, $CLEARTYPE_QUALITY)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^

then you have info about "undeclared global variable."

"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,55) : error: $FW_MEDIUM: undeclared global variable.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,101) : error: $CLEARTYPE_QUALITY: undeclared global variable.
GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM, 0, "Segoe UI", $main_gui, $CLEARTYPE_QUALITY)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^

I think AU3Check checks script on the occurrence of these two different events in two different runs / functions.
So I think this is expected. 
But the last word belongs not to me.
 
mLipok
 
 
EDIT:
 

Two warnings and two errors about the same two issues.  Is this to be expected?

 

these are two different events but located in this same place.

Edited by mLipok

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OK, so AU3Check clearly demonstrates that the two variables are indeed undeclared.  Au3Check thus throws two errors.  Logically it should only follow that the warnings are redundant.  These are two separate issues but closely related.

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#4 ·  Posted (edited)

I was thinking about this.
 
 

"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,55) : error: $FW_MEDIUM: undeclared global variable.

GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM,

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^

"D:\Programming\AutoIt\My Scripts\Testdisk GUI\GUI.au3"(29,101) : error: $CLEARTYPE_QUALITY: undeclared global variable.

GUISetFont((8.5 / GetDPI_Ratio($main_gui)), $FW_MEDIUM, 0, "Segoe UI", $main_gui, $CLEARTYPE_QUALITY)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^

And here are my questions:

Is this indeed are global variable ?
How Au3Check know this are Global/Local variable ?
Ever, these two types of messages appear separately, ie one without the other ? EDIT: I mean "possibly used before declaration" and "undeclared global variable"

Edited by mLipok

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Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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#5 ·  Posted (edited)

Yes this is expected as au3check does one sequential pass through the code.
The warning is when the actual statement is interpreted and the Error is a conclusion at the end.

To simplify it: This triggers the warning and error for $B:

$A = $B

This triggers only the warning for $B

$A = $B
$B = 1

Jos

Edited by Jos

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I prefer it as it is now, Au3Check shouting at me when I make a stupid mistakes. You don't know how often though?!

1 person likes this

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Your explanation was the answer to my 3 questions.
for the first and second question, I came to the conclusion:
Au3Check not know this, but take into account that since there was no declaration within the function assumes that the programmer should presumably be a global variable.

btw.

I like both messages.


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My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

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IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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It isn't really irrelevant if people like these double Error/Warnings or not .... it is what it is as au3check doesn't understand Autoit3 script flows, so it interprets the code line for line and gives warnings (or error) it finds in lines, but at the same time builds a table of variables which it processes at the end to also spit out the Errors line shown.

The "Global" in the error is maybe not always relevant and could be also "local" in some occasions, but again isn't that relevant. The only important thing is you are told that the Variable isn't declared at all.

Jos 


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