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Examples of errors detected by the V305…

Examples of errors detected by the V3057 diagnostic

V3057. Function receives an odd argument.


Unity3D

V3057 Invalid regular expression patern in constructor. Inspect the first argument. AssetBundleDemo ExecuteInternalMono.cs 48


class ExecuteInternalMono
{
  private static readonly Regex UnsafeCharsWindows =
    new Regex("[^A-Za-z0-9\\_\\-\\.\\:\\,\\/\\@\\\\]"); // <=

  ....
}

MSBuild

V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. Utilities.cs 328


internal static string CreateToolsVersionListString(....)
{
  ....
  if (toolsVersionList.Length > 0)
  {
    toolsVersionList = toolsVersionList.Substring(0,
      toolsVersionList.Length - 2);
  }
  ....
}

Similar errors can be found in some other places:

  • V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. SolutionFile.cs 1217
  • V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. XMake.cs 2929
  • V3057 The 'Remove' function could receive the '-1' value while non-negative value is expected. Inspect the first argument. BootstrapperBuilder.cs 767

Orchard CMS

V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. ContentIdentity.cs 139


.... GetIdentityKeyValue(....) {
  ....
  var indexOfEquals = identityEntry.IndexOf("=");
  if (indexOfEquals < 0) return null;

  var key = identityEntry.Substring(1, indexOfEquals - 1);

  ....
}

Similar errors can be found in some other places:

  • V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. CommandParametersParser.cs 18
  • V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. CommandStep.cs 73

Umbraco

V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. ContentExtensions.cs 82


internal static CultureInfo GetCulture(....)
{
  ....
  var pos = route.IndexOf('/');
  domain = pos == 0
    ? null
    : domainHelper.DomainForNode(
      int.Parse(route.Substring(0, pos)), current)
      .UmbracoDomain;
  ....
}

Similar errors can be found in some other places:

  • V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the first argument. DefaultUrlProvider.cs 81
  • V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the second argument. DefaultUrlProvider.cs 84
  • V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the first argument. DefaultUrlProvider.cs 126
  • And 7 additional diagnostic messages.

Umbraco

V3057 The 'DateTime' constructor receives the '0' value while positive value is expected. Inspect the second argument. DateTimeExtensions.cs 24


public static DateTime TruncateTo(this DateTime dt,
  DateTruncate truncateTo)
{
  if (truncateTo == DateTruncate.Year)
    return new DateTime(dt.Year, 0, 0);
  if (truncateTo == DateTruncate.Month)
    return new DateTime(dt.Year, dt.Month, 0);
  ....
}

Similar errors can be found in some other places:

  • V3057 The 'DateTime' constructor receives the '0' value while positive value is expected. Inspect the third argument. DateTimeExtensions.cs 24
  • V3057 The 'DateTime' constructor receives the '0' value while positive value is expected. Inspect the third argument. DateTimeExtensions.cs 26

QuantConnect Lean

V3057 The 'Substring' function could receive the '-1' value while non-negative value is expected. Inspect the first argument. StringExtensions.cs 311


public static string SafeSubstring(this string value,
                                   int startIndex,
                                   int length)
{
  if (string.IsNullOrEmpty(value))
  {
    return value;
  }

  if (startIndex > value.Length - 1)
  {
    return string.Empty;
  }

  if (startIndex < -1)
  {
    startIndex = 0;
  }

  return value.Substring(startIndex,
                         Math.Min(length, value.Length - startIndex));
}

DotNetNuke

V3057 The 'Combine' function is expected to receive a valid path string. Inspect the second argument. PortalController.cs 3538


private void ParseTemplateInternal(...., string templatePath, ....)
{
  ....
  string path = Path.Combine(templatePath, "admin.template");
  if (!File.Exists(path))
  {
    // if the template is a merged copy of a localized templte the
    // admin.template may be one director up
    path = Path.Combine(templatePath, "..\admin.template");
  }
  ....
}

DotNetNuke

V3057 The 'Remove' function could receive the '-1' value while non-negative value is expected. Inspect the first argument. StackTraceDetailPatternConverter.cs 67


internal override string GetMethodInformation(MethodItem method)
{
  ....
  string param = string.Empty;
  string[] names = method.Parameters;
  StringBuilder sb = new StringBuilder();
  if (names != null && names.GetUpperBound(0) > 0)
  {
    for (int i = 0; i <= names.GetUpperBound(0); i++)
    {
      sb.AppendFormat("{0}, ", names[i]);
    }
  }

  if (sb.Length > 0)
  {
    sb.Remove(sb.Length - 2, 2);
    param = sb.ToString();
  }
  ....
}

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