Examples of errors detected by the V3134 diagnostic

V3134. Shift by N bits is greater than the size of type.

Orleans

V3134 Shift by 41 bits is greater than the size of 'Int32' type of expression '1'. IntegerCodec.cs 611

public static void WriteField<TBufferWriter>
                   (ref Writer<TBufferWriter> writer,
                    uint fieldIdDelta,
                    Type expectedType,
                    long value) where TBufferWriter : IBufferWriter<byte>
{
  ReferenceCodec.MarkValueField(writer.Session);
  if (value <= int.MaxValue && value >= int.MinValue)             // <=
  {
    if (value > 1 << 20 || -value > 1 << 20)
    {
      writer.WriteFieldHeader(fieldIdDelta,
                              expectedType,
                              CodecFieldType,
                              WireType.Fixed32);
      writer.WriteInt32((int)value);
    }
    else
    {
      writer.WriteFieldHeader(fieldIdDelta,
                              expectedType,
                              CodecFieldType,
                              WireType.VarInt);
      writer.WriteVarInt64(value);
    }
  }
  else if (value > 1 << 41 || -value > 1 << 41)                   // <=
  {
    writer.WriteFieldHeader(fieldIdDelta,
                            expectedType,
                            CodecFieldType,
                            WireType.Fixed64);
    writer.WriteInt64(value);
  }
  else
  {
    writer.WriteFieldHeader(fieldIdDelta,
                            expectedType,
                            CodecFieldType,
                            WireType.VarInt);
    writer.WriteVarInt64(value);
  }
}

Discord.NET

V3134 Shift by 32 bits is greater than the size of 'Int32' type of expression '1'. GuildFeature.cs 147

public enum GuildFeature : long
{
  None = 0,
  AnimatedBanner = 1 << 0,
  AnimatedIcon = 1 << 1,
  Banner = 1 << 2,
  ....
  TextInVoiceEnabled = 1 << 32,
  ThreadsEnabled = 1 << 33,
  ThreadsEnabledTesting = 1 << 34,
  ....
  VIPRegions = 1 << 40,
  WelcomeScreenEnabled = 1 << 41,
}

Microsoft PowerToys

V3134 Shift by 48 bits is greater than the size of 'UInt32' type of expression '(uint)fileVersion.ProductMajorPart'. PluginManager.cs 62

public static List<PluginPair> AllPlugins
{
  get
  {
    ....
    try
    {
      // Return a comparable produce version.
      var fileVersion = FileVersionInfo.GetVersionInfo(x.ExecuteFilePath);
      return ((uint)fileVersion.ProductMajorPart << 48)
      | ((uint)fileVersion.ProductMinorPart << 32)
      | ((uint)fileVersion.ProductBuildPart << 16)
      | ((uint)fileVersion.ProductPrivatePart);
      }
    catch (System.IO.FileNotFoundException)
    {
      return 0U;
    }
    ....
  }
}

Similar errors can be found in some other places:

• V3134 Shift by 32 bits is greater than the size of 'UInt32' type of expression '(uint)fileVersion.ProductMinorPart'. PluginManager.cs 63