Examples of errors detected by the V3057 diagnostic

V3057. Function receives an odd argument.

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();
  }
  ....
}

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");
  }
  ....
}

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));
}

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

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.

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

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

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\\_\\-\\.\\:\\,\\/\\@\\\\]"); // <=

  ....
}