GetCount()

override int System.Linq.Enumerable.AppendPrependN< TSource >.GetCount ( bool onlyIfCheap )

inline

Definition at line 291 of file Enumerable.cs.

        {
            if (_source is IIListProvider<TSource> iIListProvider)
            {
                int count = iIListProvider.GetCount(onlyIfCheap);
                if (count != -1)
                {
                    return count + _appendCount + _prependCount;
                }
                return -1;
            }
            if (onlyIfCheap && !(_source is ICollection<TSource>))
            {
                return -1;
            }
            return _source.Count() + _appendCount + _prependCount;
        }

References System.Linq.Enumerable.AppendPrependN< TSource >._appendCount, System.Linq.Enumerable.AppendPrependN< TSource >._prependCount, System.Linq.Enumerable.AppendPrependIterator< TSource >._source, and System.Linq.count.

Referenced by System.Linq.Enumerable.AppendPrependN< TSource >.ToArray(), and System.Linq.Enumerable.AppendPrependN< TSource >.ToList().