public void Add(T1 t1, T2 t2)
{
t1 = GetIndex(t1);
t2 = GetIndex(t2);
if (Forward.ContainsKey(t1))
{
return;
}
lock (_locker)
{
if (Forward.ContainsKey(t1))
{
return;
}
_forward = _forward.Add(t1, t2);
_reverse = _reverse.Add(GetIndex(t2), t1);
var forward = new Indexer <T1, T2>(_forward);
var reverse = new Indexer <T2, T1>(_reverse);
Interlocked.Exchange(ref _forwardIndexer, forward);
Interlocked.Exchange(ref _reverseIndexer, reverse);
}
}
void InternalAdd(T1 t1, T2 t2)
{
try
{
if (t1 == null || t2 == null)
{
throw new ArgumentException("Null key value", "Null value is not allowed.");
}
if (Forward.ContainsKey(t1) || Reverse.ContainsKey(t2))
{
throw new System.ArgumentException("A pair with same item already exist!");
}
else
{
Forward.Add(t1, t2);
Reverse.Add(t2, t1);
}
}
catch (Exception e)
{
// throw new System.Exception("BiMap: Unknow exception in Add().");
throw e;
}
}
public bool Contains(T1 key)
{
if (key == null)
{
throw new ArgumentException("Null key query", "Null is not allowed.");
}
return(Forward.ContainsKey(key));
}
#pragma warning restore CS8601
public bool ContainsKey(T1 key) => Forward.ContainsKey(key);
/// <summary>
///
/// </summary>
/// <param name="first"></param>
/// <returns></returns>
public IEnumerable <TSecond> GetByFirst(TFirst first)
{
return(Forward.ContainsKey(first) ? Forward[first] : EmptySecondList);
}
public bool ContainsKey(T1 key)
{
ContainingCheck(key);
return(Forward.ContainsKey(key));
}
public bool Contains(KeyValuePair <T2, T1> item)
{
return(((ICollection <KeyValuePair <T2, T1> >)Reverse).Contains(item) && Forward.ContainsKey(item.Value) && Forward[item.Value].Equals(item.Key));
}
public bool ContainsKey(K key)
{
return(Forward.ContainsKey(key));
}