[Bug 57563] New: vbscript: mid() throws when passed VT_EMPTY instead of returning empty string

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57563

            Bug ID: 57563
           Summary: vbscript: mid() throws when passed VT_EMPTY instead of
                    returning empty string
           Product: Wine
           Version: 9.4
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: vbscript
          Assignee: wine-bugs(a)winehq.org
          Reporter: francisdb(a)gmail.com
      Distribution: ---

Dim Uninitialized(1)
Wscript.Echo "Uninitialized(0) = " & Uninitialized(0)
Wscript.Echo "TypeName(Uninitialized(0)) = " & TypeName(Uninitialized(0))
Dim t: t = mid(Uninitialized(0),1,2)
Wscript.Echo "t = " & t
Wscript.Echo "TypeName(t) = " & TypeName(t)

Wine

/opt/wine-devel/bin/wine cscript test.vbs
Uninitialized(0) =
TypeName(Uninitialized(0)) = Empty
0120:fixme:wscript:ActiveScriptSite_OnScriptError ()


Windows

cscript //Nologo test2.vbs
Uninitialized(0) = 
TypeName(Uninitialized(0)) = Empty
t = 
TypeName(t) = String

[Done] exited with code=0 in 0.061 seconds

Related code:
https://gitlab.winehq.org/wine/wine/-/blob/master/dlls/vbscript/global.c?ref...

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