Pour obtenir une clé
d'essai remplissez le formulaire ci-dessous
Demandez des tariffs
Nouvelle licence
Renouvellement de licence
--Sélectionnez la devise--
USD
EUR
RUB
* En cliquant sur ce bouton, vous acceptez notre politique de confidentialité

Free PVS-Studio license for Microsoft MVP specialists
To get the licence for your open-source project, please fill out this form
** En cliquant sur ce bouton, vous acceptez notre politique de confidentialité.

I am interested to try it on the platforms:
** En cliquant sur ce bouton, vous acceptez notre politique de confidentialité.

Message submitted.

Your message has been sent. We will email you at


If you haven't received our response, please do the following:
check your Spam/Junk folder and click the "Not Spam" button for our message.
This way, you won't miss messages from our team in the future.

>
>
>
Examples of errors detected by the V315…

Examples of errors detected by the V3153 diagnostic

V3153. Dereferencing the result of null-conditional access operator can lead to NullReferenceException.


MSBuild

V3153 Enumerating the result of null-conditional access operator can lead to NullReferenceException. Consider inspecting: properties?.Keys. MockEngine.cs 159


public void LogTelemetry(string eventName,
                         IDictionary<string, string> properties)
{
  string message
           = $"Received telemetry event '{eventName}'{Environment.NewLine}";

  foreach (string key in properties?.Keys)
  {
    message += $"  Property '{key}' = '{properties[key]}'{Environment.NewLine}";
  }
  ....
}

Nethermind

V3153 Enumerating the result of null-conditional access operator can lead to NullReferenceException. NLogLogger.cs 50


public NLogLogger(....)
{
  ....

  foreach (FileTarget target in global::NLog.LogManager
                                            .Configuration
                                           ?.AllTargets
                                            .OfType<FileTarget>())
    ....
}

.NET Compiler Platform ("Roslyn")

V3153 Enumerating the result of null-conditional access operator can lead to NullReferenceException. CompletionSource.cs 482


private ImmutableArray<char>
GetExcludedCommitCharacters(ImmutableArray<RoslynCompletionItem> roslynItems)
{
  var hashSet = new HashSet<char>();
  foreach (var roslynItem in roslynItems)
  {
    foreach (var rule in roslynItem.Rules?.FilterCharacterRules)  // <=
    {
      if (rule.Kind == CharacterSetModificationKind.Add)
      {
        foreach (var c in rule.Characters)
        {
          hashSet.Add(c);
        }
      }
    }
  }

  return hashSet.ToImmutableArray();
}

Barotrauma

V3153 Enumerating the result of null-conditional access operator can lead to NullReferenceException. Voting.cs 181


public void ClientRead(IReadMessage inc)
{
  ....
  foreach (GUIComponent item in
           GameMain.NetLobbyScreen?.SubList?.Content?.Children)    // <=
  {
    if (item.UserData != null && item.UserData is SubmarineInfo)
    {
      serversubs.Add(item.UserData as SubmarineInfo);
    }
  }
  ....
}

Orleans

V3153 Enumerating the result of null-conditional access operator can lead to NullReferenceException. Silo.cs 180


public Silo(ILocalSiloDetails siloDetails, IServiceProvider services)
{
  ....
  foreach (ILifecycleParticipant<ISiloLifecycle> participant
             in namedLifecycleParticipantCollection?.GetServices(this.Services)
                                                   ?.Select(....))
  {
    participant?.Participate(this.siloLifecycle);
  }
  ....
}

AvalonStudio

V3153 Enumerating the result of null-conditional access operator can lead to NullReferenceException. BreakPointMargin.cs 46


public override void Render(DrawingContext context)
{
  ....
  foreach (var breakPoint in _manager?.OfType<Breakpoint>().Where(....))
  {
    ....
  }
  ....
}

Unicorn with delicious cookie
Nous utilisons des cookies pour améliorer votre expérience de navigation. En savoir plus
Accepter