public static TSource First <TSource>(this IReadOnlyList <TSource> source)
{
switch (source)
{
case TSource[] array:
return(ArrayExtensions.First <TSource>(array));
default:
return(ReadOnlyList.First <IReadOnlyList <TSource>, IEnumerator <TSource>, TSource>(source));
}
}
public static Option <TSource> First <TSource>(this ImmutableList <TSource> source) => ReadOnlyList.First <ImmutableList <TSource>, TSource>(source);
public static Option <TSource> First <TSource>(this List <TSource> source) => ReadOnlyList.First <List <TSource>, TSource>(source);