protected ProgressiveDictionary(Progressor <KeyValuePair <TKey, TValue> > wrapped, IDictionary <TKey, TValue> cache, IEqualityComparer <TKey> keyComparer, IEqualityComparer <TValue> valueComparer)
: base
((out KeyValuePair <TKey, TValue> pair) =>
{
again:
if (wrapped.TryTake(out pair))
{
if (cache.ContainsKey(pair.Key))
{
goto again;
}
return(true);
}
else
{
return(false);
}
}, cache, new KeyValuePairEqualityComparer <TKey, TValue>(keyComparer, valueComparer))
{
_cache = Check.NotNullArgument(cache, "cache");
_keyComparer = keyComparer ?? EqualityComparer <TKey> .Default;
_keyComparer = EqualityComparer <TKey> .Default;
_valuesReadonly = new ProgressiveSet <TValue>(Progressor <TValue> .CreateConverted(Progressor, input => input.Value), valueComparer);
_keysReadonly = new ProgressiveSet <TKey>(Progressor <TKey> .CreateConverted(Progressor, input => input.Key), keyComparer);
}
protected ProgressiveDictionary(IEnumerable <KeyValuePair <TKey, TValue> > wrapped, IDictionary <TKey, TValue> cache, IEqualityComparer <TKey> keyComparer, IEqualityComparer <TValue> valueComparer)
: this(wrapped.GetEnumerator(), cache, new KeyValuePairEqualityComparer <TKey, TValue>(keyComparer, valueComparer))
{
_cache = Check.NotNullArgument(cache, "cache");
_keyComparer = keyComparer ?? EqualityComparer <TKey> .Default;
_valuesReadonly = new ProgressiveSet <TValue>(Progressor <TValue> .CreateConverted(Progressor, input => input.Value), valueComparer);
_keysReadonly = new ProgressiveSet <TKey>(Progressor <TKey> .CreateConverted(Progressor, input => input.Key), keyComparer);
}
protected ProgressiveLookup(TryTake <IGrouping <TKey, T> > tryTake, IDictionary <TKey, IGrouping <TKey, T> > cache, IEqualityComparer <TKey> keyComparer, IEqualityComparer <T> itemComparer)
{
_cache = Check.NotNullArgument(cache, "cache");
_progressor = new Progressor <IGrouping <TKey, T> >(tryTake, false); // false because the underlaying structure may change
_progressor.SubscribeAction(obj => _cache.Add(new KeyValuePair <TKey, IGrouping <TKey, T> >(obj.Key, obj)));
_keyComparer = keyComparer ?? EqualityComparer <TKey> .Default;
_itemComparer = itemComparer ?? EqualityComparer <T> .Default;
_keysReadonly = new ProgressiveSet <TKey>(Progressor <TKey> .CreateConverted(Progressor, input => input.Key), keyComparer);
}
protected ProgressiveLookup(Progressor <IGrouping <TKey, T> > wrapped, IDictionary <TKey, IGrouping <TKey, T> > cache, IEqualityComparer <TKey> keyComparer, IEqualityComparer <T> itemComparer)
{
_cache = Check.NotNullArgument(cache, "cache");
_progressor = new Progressor <IGrouping <TKey, T> >(wrapped);
_progressor.SubscribeAction(obj => _cache.Add(new KeyValuePair <TKey, IGrouping <TKey, T> >(obj.Key, obj)));
_keyComparer = keyComparer ?? EqualityComparer <TKey> .Default;
_itemComparer = itemComparer ?? EqualityComparer <T> .Default;
_keysReadonly = new ProgressiveSet <TKey>(Progressor <TKey> .CreateConverted(Progressor, input => input.Key), keyComparer);
}