public override bool Equals(object obj)
{
return(obj switch {
ComparableWeakReference <T> reference => this == reference,
WeakReference <T> reference => this == reference,
_ => false,
});
static bool Predicate(ComparableWeakReference <T> reference, Predicate <T> predicate)
{
if (reference.TryGetTarget(out T target))
{
return(predicate.Invoke(target));
}
return(false);
}
private static int Comparison(ComparableWeakReference <T> x, ComparableWeakReference <T> y, Comparison <T> comparer)
{
bool hasX = x.TryGetTarget(out T xTarget);
bool hasY = y.TryGetTarget(out T yTarget);
if (hasX != hasY)
{
return(hasX ? int.MaxValue : int.MinValue);
}
else if (!hasX)
{
return(0);
}
return(comparer.Invoke(xTarget, yTarget));
}
public bool Contains(ComparableWeakReference <T> item)
{
return(_List.Contains(item));
}
public int BinarySearch(ComparableWeakReference <T> item, IComparer <T> comparer)
{
return(_List.BinarySearch(item, new ReferenceComparer(comparer)));
}
int IComparer <ComparableWeakReference <T> > .Compare(ComparableWeakReference <T> x, ComparableWeakReference <T> y)
{
return(Comparison(x, y, Comparer.Compare));
}
public int BinarySearch(ComparableWeakReference <T> item)
{
return(_List.BinarySearch(item));
}
public void Add(ComparableWeakReference <T> item)
{
_List.Add(item);
}
public static bool Equals(object objA, ComparableWeakReference <T> objB)
{
return(objB.Equals(objA));
}
public static bool Equals(WeakReference <T> objA, ComparableWeakReference <T> objB)
{
return(objA == objB);
}
public bool Equals(ComparableWeakReference <T> obj)
{
return(this == obj);
}