Examples of errors detected by the V3005 diagnostic.

V3005. The 'x' variable is assigned to itself.


Umbraco

V3005 The 'member.UpdateDate' variable is assigned to itself. MemberService.cs 114


public void SavePassword(IMember member, string password)
{
  ....
  member.RawPasswordValue = result.RawPasswordValue;
  member.LastPasswordChangeDate = result.LastPasswordChangeDate;
  member.UpdateDate = member.UpdateDate;
}

Identical errors can be found in some other places:

  • V3005 The 'user.UpdateDate' variable is assigned to itself. UserService.cs 269

SharpDevelop

V3005 The 'linearGradientBrush.GradientStops' variable is assigned to itself. BrushEditor.cs 120


void DetermineCurrentKind()
{
  .....
  else if (Brush is LinearGradientBrush) {
    linearGradientBrush = Brush as LinearGradientBrush;
    radialGradientBrush.GradientStops =
      linearGradientBrush.GradientStops;
    CurrentKind = BrushEditorKind.Linear;
  }
  else if (Brush is RadialGradientBrush) {
    radialGradientBrush = Brush as RadialGradientBrush;
    linearGradientBrush.GradientStops =      // <=
      linearGradientBrush.GradientStops;     // <=
    CurrentKind = BrushEditorKind.Radial;
  }
}

Most likely this is what should be written here: linearGradientBrush.GradientStops = radialGradientBrush.GradientStops;


SharpDevelop

V3005 The 'this.WhiteSpaceText' variable is assigned to itself. WhitespaceNode.cs 65


public WhitespaceNode(string whiteSpaceText,
                      TextLocation startLocation)
{
  this.WhiteSpaceText = WhiteSpaceText;
  this.startLocation = startLocation;
}

Lower case 'w' should have been used instead of capital 'W'. Correct variant: this.WhiteSpaceText = whiteSpaceText;


MonoDevelop

V3005 The 'MacroCharacter' variable is assigned to itself. Mono.TextEditor ViMacro.cs 57


public ViMacro (char macroCharacter) {
  MacroCharacter = MacroCharacter;
}

public char MacroCharacter {get; set;}

MonoDevelop

V3005 The 'MarkCharacter' variable is assigned to itself. Mono.TextEditor ViMark.cs 45


public ViMark (char markCharacter) {
  MarkCharacter = MarkCharacter;
}

public char MarkCharacter {get; set;}

MonoDevelop

V3005 The 'this.WhiteSpaceText' variable is assigned to itself. ICSharpCode.NRefactory.CSharp WhitespaceNode.cs 65


public WhitespaceNode(string whiteSpaceText,
                      TextLocation startLocation)
{
  this.WhiteSpaceText = WhiteSpaceText;
  this.startLocation = startLocation;
}

public string WhiteSpaceText { get; set; }

MonoDevelop

V3005 The 'iconMargin.IsVisible' variable is assigned to itself. MonoDevelop.HexEditor HexEditor.cs 241


void OptionsChanged (object sender, EventArgs e)
{
  gutterMargin.IsVisible = Options.ShowLineNumberMargin;
  iconMargin.IsVisible = iconMargin.IsVisible;
  ....
}

public bool IsVisible { get; set; }

IronPython and IronRuby

V3005 The 'd["latin1"]' variable is assigned to itself. StringOps.cs 1905


private static Dictionary<string, EncodingInfoWrapper>
  MakeCodecsDict() {
  ....
  switch (normalizedName) {
    case "iso_8859_1":
      d["8859"] = d["latin_1"] = d["latin1"] =
      d["iso 8859_1"] = d["iso8859_1"] = d["cp819"] =
      d["819"] = d["latin"] = d["latin1"] = d["l1"] =
      encs[i];
      break;
  ....
}

.NET Compiler Platform ("Roslyn")

V3005 The 'Name' variable is assigned to itself. AsynchronousOperationListener.DiagnosticAsyncToken.cs 32


public DiagnosticAsyncToken(
  AsynchronousOperationListener listener,
  string name,
  object tag,
  string filePath,
  int lineNumber)
  : base(listener)
{
  Name = Name;
  Tag = tag;
  FilePath = filePath;
  LineNumber = lineNumber;
  StackTrace = PortableShim.StackTrace.GetString();
}

Sony ATF

V3005 The 'ProgressError' variable is assigned to itself. Atf.Gui.Wpf.vs2010 StatusService.cs 24


public ProgressCompleteEventArgs(Exception progressError,
                                 object progressResult,
                                 bool cancelled)
{
  ProgressError = ProgressError;
  ProgressResult = progressResult;
  Cancelled = cancelled;
}

Sony ATF

V3005 The 'window.Left' variable is assigned to itself. Atf.Gui.Wpf.vs2010 DockPanel.cs 706


public double Left { get; set; }

public void ApplyLayout(XmlReader reader)
{
  ....
  FloatingWindow window = new FloatingWindow(
                                this, reader.ReadSubtree());
  ....
  window.Left = window.Left;
  window.Top = window.Top;
  ....
}

Sony ATF

V3005 The 'window.Top' variable is assigned to itself. Atf.Gui.Wpf.vs2010 DockPanel.cs 707


public double Top  { get; set; }

public void ApplyLayout(XmlReader reader)
{
  ....
  FloatingWindow window = new FloatingWindow(
                                this, reader.ReadSubtree());
  ....
  window.Left = window.Left;
  window.Top = window.Top;
  ....
}

Xenko

V3005 The 'hashCode' variable is assigned to itself. SiliconStudio.Xenko ParameterKeys.cs 346


public ParameterComposedKey(ParameterKey key,
                            string name,
                            int indexer)
{
  Key = key;
  Name = name;
  Indexer = indexer;

  unchecked
  {
    hashCode = hashCode = Key.GetHashCode();
    hashCode = (hashCode * 397) ^ Name.GetHashCode();
    hashCode = (hashCode * 397) ^ Indexer;
  }
}

WPF samples by Microsoft

V3005 The 'clipboardInfo.Text' variable is assigned to itself. MainWindow.cs 204


private void DumpAllClipboardContentsInternal()
{
  ....
  if (dataObject == null)
  {
    clipboardInfo.Text =
      clipboardInfo.Text =
        "Can't access clipboard now!
          \n\nPlease click Dump All Clipboard
              Contents button again.";
  }
  else
  {
     ....
}

Old NASA World Wind (C#)

V3005 The 'num1' variable is assigned to itself. PlaceFinder.cs 2011

V3005 The 'num1' variable is assigned to itself. PlaceFinder.cs 2012


public static bool SearchForAddress(....)
{
  double num1;
  long2 = num1 = 0;
  long1 = num1 = num1;  // <=
  lat2  = num1 = num1;  // <=
  lat1 = num1;
  ....
}

MSBuild

V3005 The '_nextProjectId' variable is assigned to itself. LoggingService.cs 325


public int NextProjectId
{
  get
  {
    lock (_lockObject)
    {
      _nextProjectId = _nextProjectId += MaxCPUCount + 2;  // <=
      return _nextProjectId;
    }
  }
}

PascalABC.NET

V3005 The 'miGenerateRealization.Visible' variable is assigned to itself. VisualPascalABCNET OptionsManager.cs 342


public void UpdateUserOptions()
{
  ....
  tsViewIntellisensePanel.Visible =
  .... =
  miGenerateRealization.Visible =
  miGenerateRealization.Visible =
  ....;
}

Identical errors can be found in some other places:

  • V3005 The 'visitNode' variable is assigned to itself. SyntaxVisitors SimplePrettyPrinterVisitor.cs 106


Do you make errors in the code?

Check your code
with PVS-Studio

Static code analysis
for C, C++ and C#

goto PVS-Studio;