private TSource[] LazyToArray()
{
Debug.Assert(GetCount(onlyIfCheap: true) == -1);
var builder = new LargeArrayBuilder <TSource>(initialize: true);
if (!_appending)
{
builder.SlowAdd(_item);
}
builder.AddRange(_source);
if (_appending)
{
builder.SlowAdd(_item);
}
return(builder.ToArray());
}
public void AddCountAndToArray(IEnumerable <T> seed)
{
var builder1 = new LargeArrayBuilder <T>(initialize: true);
var builder2 = new LargeArrayBuilder <T>(initialize: true);
int count = 0;
foreach (T item in seed)
{
count++;
builder1.Add(item);
builder2.SlowAdd(item); // Verify SlowAdd has exactly the same effect as Add.
Assert.Equal(count, builder1.Count);
Assert.Equal(count, builder2.Count);
Assert.Equal(seed.Take(count), builder1.ToArray());
Assert.Equal(seed.Take(count), builder2.ToArray());
}
}
