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Примеры ошибок, обнаруженных с помощью …

Примеры ошибок, обнаруженных с помощью диагностики V3003

V3003. The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence.


SharpDevelop

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 773, 798. DockableContent.cs 773


protected override bool CanExecuteCommand(ICommand command)
{
  ....
  }
  else if (command == DockableContentCommands.ShowAsDocument)
  {
    if (State == DockableContentState.Document)
    {
      return false;
    }
  }
  ....
  else if (command == DockableContentCommands.ShowAsDocument)
  {
    if (State == DockableContentState.Document)
    {
      return false;
    }
  }
  ....
}

Microsoft Code Contracts

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 1200, 1210. OutputPrettyCS.cs 1200


public enum TypeConstraint
{
  NONE,
  CLASS,     // <=
  STRUCT,    // <=
  BASECLASS,
}

public void Output(OutputHelper oh)
{
  Contract.Requires(oh != null);

  oh.Output("where ", false);
  mParent.OutputName(oh);
  oh.Output(" : ", false);
  //** base class
  bool comma = false;
  if (mTypeConstraint == TypeConstraint.CLASS)       // <=
  {
    oh.Output("class", false);
    comma = true;
  }
  else if (mTypeConstraint == TypeConstraint.STRUCT)
  {
    oh.Output("struct", false);
    comma = true;
  }
  else if (mTypeConstraint == TypeConstraint.CLASS)  // <=
  {
    oh.Output(mClassConstraint, false);
    comma = true;
  }
}

Xamarin.Forms

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 28, 30. Xamarin.Forms.Platform.Android SwitchRenderer.cs 28


public override SizeRequest
GetDesiredSize(int widthConstraint, int heightConstraint)
{
  ....
  int width = widthConstraint;
  if (widthConstraint <= 0)
    width = (int)Context.GetThemeAttributeDp(
                  global::Android.Resource
                                 .Attribute
                                 .SwitchMinWidth);
  else if (widthConstraint <= 0)
    width = 100;
  ....
}

Similar errors can be found in some other places:

  • V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 26, 28. Xamarin.Forms.Platform.Android SwitchRenderer.cs 26

WPF samples by Microsoft

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 418, 422. txtserializerwriter.cs 418


public int Compare(GlyphRun a, GlyphRun b)
{
  ....
  if (aPoint.Y > bPoint.Y)      // <=
  {
    return -1;
  }
  else if (aPoint.Y > bPoint.Y) // <=
  {
    result = 1;
  }
  else if (aPoint.X < bPoint.X)
  {
    result = -1;
  }
  else if (aPoint.X > bPoint.X)
  {
    result = 1;
  }
  ....
}

Old NASA World Wind (C#)

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 2111, 2197. KMLImporter.cs 2111


private static void WebUpdate(....)
{
  ....
  if (ver != version)          // <=
  {
    ....
  }
  else if (ver != version)    // <=
  {
    ....
  }
}

Old NASA World Wind (C#)

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 4503, 4607. GPSTracker.cs 4503


public bool LoadSettings(....)
{
 ....
 if (bSet)
 {
   while(true)
   {
     line = sr.ReadLine();
     if (line==null || line.StartsWith("END UI CONTROLS"))
       break;
     ....
     if (line.StartsWith("comboBoxAPRSInternetServer=")) // <=
       ....
     else
     ....
     if (line.StartsWith("checkBoxNoDelay="))            // <=
       ....
     else
     if (line.StartsWith("checkBoxNoDelay="))            // <=
       ....
     ....
     else
     if (line.StartsWith("comboBoxAPRSInternetServer=")) // <=
     ....
   }
   ....
 }
 ....
}

Similar errors can be found in some other places:

  • V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 4527, 4530. GPSTracker.cs 4527

Mono

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 597, 599. Hwnd.cs 597


public Point MenuOrigin {
  get {
    ....
    if (this.title_style == TitleStyle.Normal)  {        // <=
      pt.Y += caption_height;
    } else if (this.title_style == TitleStyle.Normal)  { // <=
      pt.Y += tool_caption_height;
    }
    ....
}

Media Portal 2

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 452, 462. Scanner.cs 452


private object ScanNumber()
{
  ....
  if (style == NumberStyles.Integer)
  {
    int ivalue;
    if (int.TryParse(num, out ivalue))
      return ivalue;
    ....
  }
  else if (style == NumberStyles.Integer) // <=
  {
    return double.Parse(num);
  }
  ....
}

The condition of both "if" statements is completely equivalent, so the second "if" body will never been executed.


PascalABC.NET

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 597, 631. ParserTools SyntaxTreeComparer.cs 597


public void CompareInternal(....)
{
  ....
  if (left is ident)
    CompareInternal(left as ident, right as ident);
  ....
  else if (left is int64_const)
    CompareInternal(left as int64_const, right as int64_const);
  ....
  else if (left is int64_const)
    CompareInternal(left as int64_const, right as int64_const);
  ....
}

Similar errors can be found in some other places:

  • V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 1599, 1611. ParserTools SyntaxTreeComparer.cs 1599
  • V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 1611, 1615. ParserTools SyntaxTreeComparer.cs 1611
  • V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 103, 209. SyntaxVisitors SimplePrettyPrinterVisitor.cs 103

SubtitleEdit

V3003 CWE-570 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 300, 302. SubStationAlphaStyles.cs 300


public static void AddStyle(ListView lv, SsaStyle ssaStyle,
  Subtitle subtitle, bool isSubstationAlpha)
{
  ....
  if (ssaStyle.Bold || ssaStyle.Italic)
    subItem.Font = new Font(...., FontStyle.Bold |
                                  FontStyle.Italic);
  else if (ssaStyle.Bold)
    subItem.Font = new Font(...., FontStyle.Bold);
  else if (ssaStyle.Italic)
    subItem.Font = new Font(...., FontStyle.Italic);
  else if (ssaStyle.Italic)
    subItem.Font = new Font(...., FontStyle.Regular);
  ....
}

SubtitleEdit

V3003 CWE-570 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 113, 115. SsaStyle.cs 113


public string ToRawSsa(string styleFormat)
{
  var sb = new StringBuilder();
  sb.Append("Style: ");
  var format = ....;
  for (int i = 0; i < format.Length; i++)
  {
    string f = format[i].Trim();
    if (f == "name")
      sb.Append(Name);
    ....
    else if (f == "shadow")    // <=
      sb.Append(OutlineWidth); // <=
    else if (f == "shadow")    // <=
      sb.Append(ShadowWidth);  // <=
    ....
  }
  ....
}

Similar errors can be found in some other places:

  • V3003 CWE-570 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 268, 270. ExportCustomTextFormat.cs 268
  • V3003 CWE-570 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 278, 280. ExportCustomTextFormat.cs 278
  • V3003 CWE-570 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 220, 252. SetSyncPoint.cs 220
  • And 6 additional diagnostic messages.

Infer.NET

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 1719, 1727. Compiler CodeRecognizer.cs 1719


private void ForEachPrefix(IExpression expr,
                           Action<IExpression> action)
{
  if (....)
  ....
  else if (expr is IUnaryExpression)
    ForEachPrefix(((IUnaryExpression)expr).Expression, action);
  else if (expr is IAddressReferenceExpression)
    ForEachPrefix(((IAddressReferenceExpression)expr).Expression, action);
  ....
  else if (expr is IUnaryExpression)
    ForEachPrefix(((IUnaryExpression)expr).Expression, action);
  else if (expr is IAddressReferenceExpression)
    ForEachPrefix(((IAddressReferenceExpression)expr).Expression, action)
  ....
}

Similar errors can be found in some other places:

  • V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 1721, 1729. Compiler CodeRecognizer.cs 1721

.NET Core Libraries (CoreFX)

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 381, 396. ImportContext.cs 381


internal void Depends(XmlSchemaObject item, ArrayList refs)
{
  ....
  if (content is XmlSchemaSimpleTypeRestriction) // <=
  {
    baseType = ((XmlSchemaSimpleTypeRestriction)content).BaseType;
    baseName = ((XmlSchemaSimpleTypeRestriction)content).BaseTypeName;
  }
  else if (content is XmlSchemaSimpleTypeList)
  {
    ....
  }
  else if (content is XmlSchemaSimpleTypeRestriction) // <=
  {
    baseName = ((XmlSchemaSimpleTypeRestriction)content).BaseTypeName;
  }
  ....
}

Azure PowerShell

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 152, 163. GetAzureRmRecoveryServicesBackupProtectionPolicy.cs 152


public override void ExecuteCmdlet()
{
  ....
  if( WorkloadType == Models.WorkloadType.AzureVM )
  {
    ....
  }
  ....
  else if( WorkloadType == Models.WorkloadType.AzureFiles )
  {
    if( BackupManagementType != Models.BackupManagementType.AzureStorage )
    {
      throw new ArgumentException(
        Resources.AzureFileUnsupportedBackupManagementTypeException );
    }
    serviceClientProviderType = ServiceClientHelpers.
      GetServiceClientProviderType( Models.WorkloadType.AzureFiles );
  }
  else if( WorkloadType == Models.WorkloadType.AzureFiles )
  {
    if( BackupManagementType != Models.BackupManagementType.AzureStorage )
    {
      throw new ArgumentException(
        Resources.AzureFileUnsupportedBackupManagementTypeException );
    }
    serviceClientProviderType = ServiceClientHelpers.
      GetServiceClientProviderType( Models.WorkloadType.AzureFiles );
  }
  ....
}

Ryujinx

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 26, 30. ZbcSetTableArguments.cs 26


public uint this[int index]
{
    get
    {
        if (index == 0)
        {
            return element0;
        }
        else if (index == 1)
        {
            return element1;
        }
        else if (index == 2)
        {
            return element2;
        }
        else if (index == 2)
        {
            return element3;
        }

        throw new IndexOutOfRangeException();
    }
}

LINQ to DB

V3003 The use of 'if (A) {...} else if (A) {...}' pattern was detected. There is a probability of logical error presence. Check lines: 256, 273. SqlPredicate.cs 256


public ISqlPredicate Reduce(EvaluationContext context)
{
  ....
  if (Operator == Operator.Equal)
  {
    ....
  }
  else
  if (Operator == Operator.NotEqual)
  {
    search.Conditions.Add(
      new SqlCondition(false, predicate, true));
    search.Conditions.Add(
      new SqlCondition(false, new IsNull(Expr1, false), false));
    search.Conditions.Add(
      new SqlCondition(false, new IsNull(Expr2, true), true));
    search.Conditions.Add(
      new SqlCondition(false, new IsNull(Expr1, true), false));
    search.Conditions.Add(
      new SqlCondition(false, new IsNull(Expr2, false), false));
  }
  else
  if (Operator == Operator.LessOrEqual || Operator == Operator.GreaterOrEqual)
  {
    ....
  }
  else if (Operator == Operator.NotEqual)
  {
    search.Conditions.Add(
      new SqlCondition(false, predicate, true));
    search.Conditions.Add(
      new SqlCondition(false, new IsNull(Expr1, false), false));
    search.Conditions.Add(
      new SqlCondition(false, new IsNull(Expr2, false), false));
  }
  else
  {
    ....
  }
  ....
}