public int GetHashCode(object obj)
{
if (object.ReferenceEquals(obj, null))
{
return(0);
}
if (obj is string)
{
string text = (string)obj;
if ((CompareOptions.IgnoreCase & this.m_compareOptions) != 0)
{
text = text.ToUpper(this.m_cultureInfo);
}
return(text.GetHashCode());
}
ICustomComparable customComparable = obj as ICustomComparable;
if (customComparable != null)
{
return(customComparable.GetHashCode(this));
}
return(obj.GetHashCode());
}
private int InternalCompareTo(object x, object y, bool throwExceptionOnComparisonFailure)
{
string text = x as string;
string text2 = y as string;
if (text != null && text2 != null)
{
return(this.m_compareInfo.Compare(text, text2, this.m_compareOptions));
}
DataTypeCode dataTypeCode = ObjectSerializer.GetDataTypeCode(x);
DataTypeCode dataTypeCode2 = ObjectSerializer.GetDataTypeCode(y);
if (dataTypeCode == DataTypeCode.Empty && dataTypeCode2 == DataTypeCode.Empty)
{
return(0);
}
if (dataTypeCode == DataTypeCode.Empty)
{
if (this.m_nullsAsBlanks && ComparerUtility.IsNumericLessThanZero(y))
{
return(1);
}
return(-1);
}
if (dataTypeCode2 == DataTypeCode.Empty)
{
if (this.m_nullsAsBlanks && ComparerUtility.IsNumericLessThanZero(x))
{
return(-1);
}
return(1);
}
if (dataTypeCode != dataTypeCode2)
{
switch (ComparerUtility.GetCommonVariantConversionType(dataTypeCode, dataTypeCode2))
{
case DataTypeCode.Double:
{
double num3 = 0.0;
double num4 = 0.0;
if (dataTypeCode == DataTypeCode.DateTime)
{
num3 = ((DateTime)x).ToOADate();
num4 = Convert.ToDouble(y, this.m_cultureInfo);
}
else if (dataTypeCode2 == DataTypeCode.DateTime)
{
num4 = ((DateTime)y).ToOADate();
num3 = Convert.ToDouble(x, this.m_cultureInfo);
}
else
{
num3 = Convert.ToDouble(x, this.m_cultureInfo);
num4 = Convert.ToDouble(y, this.m_cultureInfo);
}
int num5 = num3.CompareTo(num4);
if (num5 == 0)
{
return(CommonDataComparer.CompareNumericDateVariantTypes(dataTypeCode, dataTypeCode2, throwExceptionOnComparisonFailure));
}
return(num5);
}
case DataTypeCode.Decimal:
{
decimal num = Convert.ToDecimal(x, this.m_cultureInfo);
decimal value = Convert.ToDecimal(y, this.m_cultureInfo);
int num2 = num.CompareTo(value);
if (num2 == 0)
{
return(CommonDataComparer.CompareNumericDateVariantTypes(dataTypeCode, dataTypeCode2, throwExceptionOnComparisonFailure));
}
return(num2);
}
case DataTypeCode.Int64:
{
long num6 = Convert.ToInt64(x, this.m_cultureInfo);
long value2 = Convert.ToInt64(y, this.m_cultureInfo);
int num7 = num6.CompareTo(value2);
if (num7 == 0)
{
return(CommonDataComparer.CompareNumericDateVariantTypes(dataTypeCode, dataTypeCode2, throwExceptionOnComparisonFailure));
}
return(num7);
}
case DataTypeCode.Unknown:
if (!ComparerUtility.IsNonNumericVariant(dataTypeCode) && !ComparerUtility.IsNonNumericVariant(dataTypeCode2))
{
break;
}
return(CommonDataComparer.CompareToNonNumericVariantTypes(dataTypeCode, dataTypeCode2, x, y, throwExceptionOnComparisonFailure));
}
}
ICustomComparable customComparable = x as ICustomComparable;
ICustomComparable customComparable2 = y as ICustomComparable;
if (customComparable != null && customComparable2 != null)
{
return(customComparable.CompareTo(customComparable2, this));
}
IComparable left = (IComparable)x;
IComparable right = (IComparable)y;
return(this.Compare(left, right, throwExceptionOnComparisonFailure));
}
