/// <summary>
/// Initializes a new instance of the <see cref="WeakKeyDictionary{TKey, TValue}"/> class.
/// </summary>
/// <param name="keyComparer">The key comparer to use. A <c>null</c> value indicates the default comparer will be used.</param>
/// <param name="capacity">The initial capacity of the dictionary. Growth beyond this capacity will first induce a scavenge operation.</param>
public WeakKeyDictionary(IEqualityComparer <TKey> keyComparer = null, int capacity = 10)
{
Requires.Range(capacity > 0, "capacity");
this.keyComparer = keyComparer ?? EqualityComparer <TKey> .Default;
this.capacity = capacity;
IEqualityComparer <WeakReference <TKey> > equalityComparer = new WeakReferenceEqualityComparer <TKey>(this.keyComparer);
this.dictionary = new Dictionary <WeakReference <TKey>, TValue>(this.capacity, equalityComparer);
}
/// <summary>
/// Constructor taking a specified comparer for the keys
/// </summary>
internal WeakDictionary(IEqualityComparer <K> keyComparer)
{
IEqualityComparer <WeakReference <K> > equalityComparer = new WeakReferenceEqualityComparer <K>(keyComparer);
_backingDictionary = new Dictionary <WeakReference <K>, WeakReference <V> >(equalityComparer);
}
