//TODO: create additional varadic Merge methods for allocation free code paths.
public static Memory <FeedRangeState <TState> > Merge <TState>(IReadOnlyList <ReadOnlyMemory <FeedRangeState <TState> > > ranges)
where TState : State
{
if (ranges == null)
{
throw new ArgumentNullException(nameof(ranges));
}
int totalLength = 0;
for (int i = 0; i < ranges.Count; i++)
{
totalLength += ranges[i].Length;
}
FeedRangeState <TState>[] feedRanges = new FeedRangeState <TState> [totalLength];
Memory <FeedRangeState <TState> > feedRangesSpan = feedRanges.AsMemory();
for (int i = 0; i < ranges.Count; i++)
{
ReadOnlyMemory <FeedRangeState <TState> > range = ranges[i];
range.CopyTo(feedRangesSpan);
feedRangesSpan = feedRangesSpan.Slice(start: range.Length);
}
return(feedRanges);
}
public static Memory <FeedRangeState <TState> > Merge <TState>(
ReadOnlyMemory <FeedRangeState <TState> > first,
ReadOnlyMemory <FeedRangeState <TState> > second,
ReadOnlyMemory <FeedRangeState <TState> > third)
where TState : State
{
FeedRangeState <TState>[] feedRanges = new FeedRangeState <TState> [first.Length + second.Length + third.Length];
Memory <FeedRangeState <TState> > feedRangesMemory = feedRanges.AsMemory();
first.CopyTo(feedRangesMemory);
feedRangesMemory = feedRangesMemory.Slice(start: first.Length);
second.CopyTo(feedRangesMemory);
feedRangesMemory = feedRangesMemory.Slice(start: second.Length);
third.CopyTo(feedRangesMemory);
feedRangesMemory = feedRangesMemory.Slice(start: third.Length);
return(feedRanges);
}
