/// <summary>
/// Creates a new instance of ATOM feed metadata.
/// </summary>
/// <returns>The newly created ATOM feed metadata.</returns>
internal static AtomFeedMetadata CreateNewAtomFeedMetadata()
{
return(new AtomFeedMetadata
{
Authors = ReadOnlyEnumerable <AtomPersonMetadata> .Empty(),
Categories = ReadOnlyEnumerable <AtomCategoryMetadata> .Empty(),
Contributors = ReadOnlyEnumerable <AtomPersonMetadata> .Empty(),
Links = ReadOnlyEnumerable <AtomLinkMetadata> .Empty(),
});
}
/// <summary>
/// true if <paramref name="source"/> is the same instance as ReadOnlyEnumerableOfT.Empty(). false otherwise.
/// </summary>
/// <typeparam name="T">The element type of the enumerable.</typeparam>
/// <param name="source">The enumerable in question.</param>
/// <returns>Returns true if <paramref name="source"/> is the empty ReadOnlyEnumerableOfT. false otherwise.</returns>
internal static bool IsEmptyReadOnlyEnumerable <T>(this IEnumerable <T> source)
{
return(ReferenceEquals(source, ReadOnlyEnumerable <T> .Empty()));
}