public static void Demonstrate()
{
const int number = 42;
GetStringRepresentation stringRepresentation = number.ToString;
Console.WriteLine(stringRepresentation());
}
//Follow a set of methods serving as a configuration for a serializer
/// <summary>
/// returns a description of Person
/// </summary>
/// <returns></returns>
static RootDescriptor <Person> GetPersonDescriptor()
{
//Create delegates to functions describing Person fields
//functions are to be called from the Serialize function
//descritors for each field nested anywhere in Person object is recursivelly created and .Serialize() is called on each descriptor
GetStringRepresentation <Person> FirstName = new GetStringRepresentation <Person>((Person person, StringBuilder builder) =>
{ GetStringDescriptor().Serialize(person.FirstName, nameof(person.FirstName), builder); });
GetStringRepresentation <Person> LastName = new GetStringRepresentation <Person>((Person person, StringBuilder builder) =>
{ GetStringDescriptor().Serialize(person.LastName, nameof(person.LastName), builder); });
GetStringRepresentation <Person> HomeAddress = new GetStringRepresentation <Person>((Person person, StringBuilder builder) =>
{ GetAddressDescriptor().Serialize(person.HomeAddress, nameof(person.HomeAddress), builder); });
GetStringRepresentation <Person> WorkAddress = new GetStringRepresentation <Person>((Person person, StringBuilder builder) =>
{ GetAddressDescriptor().Serialize(person.WorkAddress, nameof(person.WorkAddress), builder); });
GetStringRepresentation <Person> CitizenOf = new GetStringRepresentation <Person>((Person person, StringBuilder builder) =>
{ GetCountryDescriptor().Serialize(person.CitizenOf, nameof(person.CitizenOf), builder); });
GetStringRepresentation <Person> MobilePhone = new GetStringRepresentation <Person>((Person person, StringBuilder builder) =>
{ GetPhoneNumberDescriptor().Serialize(person.MobilePhone, nameof(person.MobilePhone), builder); });
//create new person descriptor with coresponding array of delegates
RootDescriptor <Person> rootDesc = new RootDescriptor <Person>(new GetStringRepresentation <Person>[]
{ FirstName, LastName, HomeAddress, WorkAddress, CitizenOf, MobilePhone });
return(rootDesc);
//no Person instance is passed directly to GetDescriptor() functions - Descriptors can be created independentally of a particular instance
//Person instance is passed to Serialize function when called, then propageted thru corresponding delegates to recursive serialize calls
}
static RootDescriptor <PhoneNumber> GetPhoneNumberDescriptor()
{
GetStringRepresentation <PhoneNumber> Country = new GetStringRepresentation <PhoneNumber>((PhoneNumber phoneNumber, StringBuilder builder) =>
{ GetCountryDescriptor().Serialize(phoneNumber.Country, nameof(phoneNumber.Country), builder); });
GetStringRepresentation <PhoneNumber> Number = new GetStringRepresentation <PhoneNumber>((PhoneNumber phoneNumber, StringBuilder builder) =>
{ GetIntDescriptor().Serialize(phoneNumber.Number, nameof(phoneNumber.Number), builder); });
return(new RootDescriptor <PhoneNumber>(new GetStringRepresentation <PhoneNumber>[] { Country, Number }));
}
static RootDescriptor <Country> GetCountryDescriptor()
{
GetStringRepresentation <Country> Name = new GetStringRepresentation <Country>((Country country, StringBuilder builder) =>
{ GetStringDescriptor().Serialize(country.Name, nameof(country.Name), builder); });
GetStringRepresentation <Country> AreaCode = new GetStringRepresentation <Country>((Country country, StringBuilder builder) =>
{ GetIntDescriptor().Serialize(country.AreaCode, nameof(country.AreaCode), builder); });
return(new RootDescriptor <Country>(new GetStringRepresentation <Country>[] { Name, AreaCode }));
}
static RootDescriptor <Address> GetAddressDescriptor()
{
GetStringRepresentation <Address> Street = new GetStringRepresentation <Address>((Address adr, StringBuilder builder) =>
{ GetStringDescriptor().Serialize(adr.Street, nameof(adr.Street), builder); });
GetStringRepresentation <Address> City = new GetStringRepresentation <Address>((Address adr, StringBuilder builder) =>
{ GetStringDescriptor().Serialize(adr.City, nameof(adr.City), builder); });
return(new RootDescriptor <Address>(new GetStringRepresentation <Address>[] { Street, City }));
}
public static void Demonstrate()
{
GetStringRepresentation <IEnumerable <int> > collectionStringRepresentation = GetCollectionStringRepresentation;
GetStringRepresentation <List <int> > listStringRepresentation = GetListStringRepresentation;
listStringRepresentation = collectionStringRepresentation;
var list = new List <int>();
listStringRepresentation(list);
}
