internal static void UpdateCollectionItemDiff(
this DiffBuilder collectionBuilder,
object xItem,
object yItem,
object index,
MemberSettings settings)
{
ValueDiff diff;
if (TryGetValueDiff(xItem, yItem, settings, out diff))
{
if (diff != null)
{
collectionBuilder.Add(new IndexDiff(index, diff));
}
else
{
collectionBuilder.Remove(index);
}
return;
}
if (settings.ReferenceHandling == ReferenceHandling.References)
{
if (ReferenceEquals(xItem, yItem))
{
collectionBuilder.Remove(index);
}
else
{
collectionBuilder.Add(new IndexDiff(index, new ValueDiff(xItem, yItem)));
}
return;
}
IRefCounted <DiffBuilder> subDiffBuilder;
if (DiffBuilder.TryCreate(xItem, yItem, settings, out subDiffBuilder))
{
subDiffBuilder.Value.UpdateDiffs(xItem, yItem, settings);
}
collectionBuilder.AddLazy(index, subDiffBuilder.Value);
}
private static void AddItemDiffs(DiffBuilder collectionBuilder, ISet <T> x, ISet <T> y, HashSet <T> borrow)
{
borrow.UnionWith(x);
if (borrow.SetEquals(y))
{
return;
}
borrow.ExceptWith(y);
foreach (var xi in borrow)
{
collectionBuilder.Add(new IndexDiff(xi, new ValueDiff(xi, PaddedPairs.MissingItem)));
}
borrow.Clear();
borrow.UnionWith(y);
borrow.ExceptWith(x);
foreach (var yi in borrow)
{
collectionBuilder.Add(new IndexDiff(yi, new ValueDiff(PaddedPairs.MissingItem, yi)));
}
}
private void AddDiffs(
DiffBuilder collectionBuilder,
Array x,
Array y,
MemberSettings settings)
{
if (TryGetRankDiff(x, y, out var rankDiff))
{
collectionBuilder.Add(rankDiff);
return;
}
foreach (var index in x.Indices())
{
collectionBuilder.UpdateCollectionItemDiff(x.GetValue(index), y.GetValue(index), new Index(index), settings);
}
}