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Musing re "use of unassigned var" warning
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Musing re "use of unassigned var" warning 25 Nov 2020 19:30 #16759

  • FFF's Avatar

  • FFF

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    • Above warning i get for code like:
    LOCAL aFiles AS FileSystemInfo[]
...
TRY
	aFiles:= aDirs[i]:GetFileSystemInfos("*."+ cExtension) 
CATCH
	System.Environment.Exit(0)
END TRY
...
FOR j:=1 UPTO aFiles:Length
...
    AFAIU, aFiles CAN'T be used, if the assignment fails - the app will dissappear prior to using the var.

    Initializing aFiles further up would remove the warning, but would i really gain something?
    Regards
    Karl (X# 2.7; Xide 1.27; W8.1/64 German)

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    Musing re "use of unassigned var" warning 25 Nov 2020 20:55 #16760

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  • robert

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  • Posts: 2023
    • Karl,
    The compiler does not really know that System.Environment.Exit(0) will abort the app.
    I would assign NULL in the declaration to get rid of the warning:

    LOCAL aFiles := NULL AS FileSystemInfo[]

    Robert
    XSharp Development Team
    The Netherlands

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