public void DeserializeProperty(
BsonReader bsonReader,
object obj,
BsonPropertyMap propertyMap
)
{
var bsonType = bsonReader.PeekBsonType();
BsonRegularExpression value;
if (bsonType == BsonType.Null) {
bsonReader.ReadNull(propertyMap.ElementName);
value = null;
} else {
string pattern, options;
bsonReader.ReadRegularExpression(propertyMap.ElementName, out pattern, out options);
value = new BsonRegularExpression(pattern, options);
}
propertyMap.Setter(obj, value);
}
