private RuntimeType?GetBaseType()
{
if (IsInterface)
{
return(null);
}
if (RuntimeTypeHandle.IsGenericVariable(this))
{
Type[] constraints = GetGenericParameterConstraints();
RuntimeType baseType = ObjectType;
for (int i = 0; i < constraints.Length; i++)
{
RuntimeType constraint = (RuntimeType)constraints[i];
if (constraint.IsInterface)
{
continue;
}
if (constraint.IsGenericParameter)
{
GenericParameterAttributes special;
special = constraint.GenericParameterAttributes & GenericParameterAttributes.SpecialConstraintMask;
if ((special & GenericParameterAttributes.ReferenceTypeConstraint) == 0 &&
(special & GenericParameterAttributes.NotNullableValueTypeConstraint) == 0)
{
continue;
}
}
baseType = constraint;
}
if (baseType == ObjectType)
{
GenericParameterAttributes special;
special = GenericParameterAttributes & GenericParameterAttributes.SpecialConstraintMask;
if ((special & GenericParameterAttributes.NotNullableValueTypeConstraint) != 0)
{
baseType = ValueType;
}
}
return(baseType);
}
return(RuntimeTypeHandle.GetBaseType(this));
}
