public Type GetActualType(IBsonReader bsonReader, Type nominalType)
{
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
var t = nominalType;
if (bsonReader.FindElement(ElementName))
{
var raw = bsonReader.ReadString();
var discriminator = _discriminatorMapper.Discriminator(raw);
t = _discriminatorMapper.ConcreteType(discriminator);
}
bsonReader.ReturnToBookmark(bookmark);
return(t);
}
protected void AssertGetsConcreteType <T>(TDiscriminator discriminator)
{
Assert.AreEqual(typeof(T), Mapper.ConcreteType(discriminator));
}