map<TResult extends Object?> method

@optionalTypeArgs TResult map<TResult extends Object?>({ required TResult creator(ChatMemberOwner value), required TResult administrator(ChatMemberAdministrator value), required TResult member(ChatMemberMember value), required TResult restricted(ChatMemberRestricted value), required TResult left(ChatMemberLeft value), required TResult kicked(ChatMemberBanned value), })

A switch-like method, using callbacks.

Callbacks receives the raw object, upcasted. It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case final Subclass2 value:
    return ...;
}

Implementation

@optionalTypeArgs
TResult map<TResult extends Object?>({
  required TResult Function(ChatMemberOwner value) creator,
  required TResult Function(ChatMemberAdministrator value) administrator,
  required TResult Function(ChatMemberMember value) member,
  required TResult Function(ChatMemberRestricted value) restricted,
  required TResult Function(ChatMemberLeft value) left,
  required TResult Function(ChatMemberBanned value) kicked,
}) {
  final _that = this;
  switch (_that) {
    case ChatMemberOwner():
      return creator(_that);
    case ChatMemberAdministrator():
      return administrator(_that);
    case ChatMemberMember():
      return member(_that);
    case ChatMemberRestricted():
      return restricted(_that);
    case ChatMemberLeft():
      return left(_that);
    case ChatMemberBanned():
      return kicked(_that);
  }
}