[Libreoffice-bugs] [Bug 121101] New: Function parameter can duplicate dimension variable declaration

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=121101

            Bug ID: 121101
           Summary: Function parameter can duplicate dimension variable
                    declaration
           Product: LibreOffice
           Version: 6.1.1.2 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: BASIC
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: tony.sultana at pm.me

Description:
The following code has a parameter declared with the same name of a variable
declared with Dim in the function.  The Dim statement resets the variable to
its default initialization (e.g. double, variant).  If a second Dim statement
is added to declare v again then a compiling error is produced.

Sub test(v As Double)
        Dim v As Double 
        v = 1
End Sub

I believe the correct behavior should be a compiling error that the variable is
already declared in the function parameter list so that it cannot be declared
with a Dim statement.  This is the same error as if two Dim statements were
added to the function.

Steps to Reproduce:
1.Enter subroutine described
2.Enable watch on variable v
3.Monitor value in debug mode and note hat no error occurs

Actual Results:
The variable v is dimensioned replacing the function parameter definition

Expected Results:
A compiling error should have been produced as BASIC syntax error 'Variable is
already defined'



Reproducible: Always


User Profile Reset: No



Additional Info:
[Information automatically included from LibreOffice]
Locale: en-US
Module: BasicIDE
[Information guessed from browser]
OS: Linux (All)
OS is 64bit: yes

This has been tested on Win10 LO 6.1.2 and Linux Debian LO 6.1.3.
Version: 6.1.3.1
Build ID: 1:6.1.3~rc1-2
CPU threads: 8; OS: Linux 4.9; UI render: default; VCL: gtk3; 
Locale: en-US (en_US.UTF-8); Calc: group threaded

Version: 6.1.1.2 (x64)
Build ID: 5d19a1bfa650b796764388cd8b33a5af1f5baa1b
CPU threads: 4; OS: Windows 10.0; UI render: default; 
Locale: en-US (en_US); Calc: group threaded

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