internal Chained(T current, Chained <T> previous)
{
Value = current;
if (previous != null)
{
previous.Next = this;
}
}
internal Chained <TTarget> MapFilter <TTarget>(Func <T, TTarget> transform, Predicate <TTarget> filter = null)
{
filter = filter ?? True <TTarget>;
var current = this;
var result = default(Chained <TTarget>);
var currentTransform = default(Chained <TTarget>);
while (current != null)
{
var target = transform(current.Value);
if (filter(target))
{
currentTransform = new Chained <TTarget>(target, currentTransform);
result = result ?? currentTransform;
}
current = current.Next;
}
return(result);
}