public bool TryGetValue(ArraySegment <byte> key, out T value)
{
var table = buckets;
var hash = ByteArrayGetHashCode(key.Array, key.Offset, key.Count);
var entry = table[hash & indexFor];
if (entry == null)
{
goto NOT_FOUND;
}
{
var v = entry[0];
if (ByteArrayComparer.Equals(key.Array, key.Offset, key.Count, v.Key))
{
value = v.Value;
return(true);
}
}
for (int i = 1; i < entry.Length; i++)
{
var v = entry[i];
if (ByteArrayComparer.Equals(key.Array, key.Offset, key.Count, v.Key))
{
value = v.Value;
return(true);
}
}
NOT_FOUND:
value = default;
return(false);
}
bool TryAddInternal(byte[] key, T value)
{
var h = ByteArrayGetHashCode(key, 0, key.Length);
var entry = new Entry {
Key = key, Value = value
};
var array = buckets[h & (indexFor)];
if (array == null)
{
buckets[h & (indexFor)] = new[] { entry };
}
else
{
// check duplicate
for (int i = 0; i < array.Length; i++)
{
var e = array[i].Key;
if (ByteArrayComparer.Equals(key, 0, key.Length, e))
{
return(false);
}
}
var newArray = new Entry[array.Length + 1];
Array.Copy(array, newArray, array.Length);
array = newArray;
array[array.Length - 1] = entry;
buckets[h & (indexFor)] = array;
}
return(true);
}