public static Expr ArgObjectToExpr()

in MySQL.Data/src/X/Protocol/X/ExprUtil.cs [196:238]
36 lines of code
19 McCabe index (conditional complexity)

    public static Expr ArgObjectToExpr(System.Object value, Boolean allowRelationalColumns, Boolean evaluateStringExpresssion = true)
    {
      if (value == null)
        return BuildLiteralNullScalar();

      if (value is Dictionary<string, object>)
        value = new XDevAPI.DbDoc(value).ToString();

      if (value is XDevAPI.MySqlExpression)
        value = (value as XDevAPI.MySqlExpression).value;

      if (value is bool)
        return BuildLiteralScalar(Convert.ToBoolean(value));
      else if (value is byte || value is short || value is int || value is long)
        return BuildLiteralScalar(Convert.ToInt64(value));
      else if (value is ushort || value is uint || value is ulong)
        return BuildLiteralScalar(Convert.ToUInt64(value));
      else if (value is float || value is double)
        return BuildLiteralScalar(Convert.ToDouble(value));
      else if (value is string)
      {
        try
        {
          // try to parse expressions
          var stringValue = (string) value;
          if (!evaluateStringExpresssion) return BuildLiteralScalar((string)value);

          Expr expr = new ExprParser(stringValue).Parse();
          if (expr.Identifier != null)
            return BuildLiteralScalar(stringValue);
          return expr;
        }
        catch
        {
          // if can't parse, returns as literal
          return BuildLiteralScalar((string)value);
        }
      }
      else if (value is XDevAPI.DbDoc)
        return (BuildLiteralScalar(value.ToString()));

      throw new NotSupportedException("Value of type " + value.GetType() + " is not currently supported.");
    }