Bug Report T582571
Visible to All Users

Code Analysis - The Possible Null Reference diagnostic incorrectly processes single line if statements

created 7 years ago

Please see: Control flow statements "If", "For", "For Each", "Do", "While", "Select" and "Try" should not be nested too deeply

In connection with NullReference-Checks its often the situation that I "lose" one or more levels for implementing complex constructs.
To solve this problem it should be sufficient to check at the beginning of a method all parameters and early exit to reduce the complexity.
The NullReferenceException-Check should take this into account.

Visual Basic
Function Foo(param As String) As Integer If param Is Nothing Then Return 0 'CRR0027 Return param.Length End Function Sub Bar(param1 As String, param2 As String) If param1 Is Nothing Then Return If param2 Is Nothing Then Return 'Do something ... 'CRR0027 Dim length As Integer = param1.Length + param2.Length '... End Sub
Comments (1)
DevExpress Support Team 7 years ago

    Hi Robert,
    Thanks for the code snippet.
    We are working on this issue now and will notify you when we have any results.

    Answers approved by DevExpress Support

    created 7 years ago

    We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

    Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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