private static ValueDiff TryCreateValueDiff <T>(T x, T y, MemberSettings settings)
{
Debug.Assert(x != null, "x == null");
Debug.Assert(y != null, "y == null");
Debug.Assert(settings != null, "settings == null");
if (TryGetValueDiff(x, y, settings, out var diff))
{
return(diff);
}
using (var borrow = DiffBuilder.GetOrCreate(x, y, settings))
{
borrow.Value.UpdateDiffs(x, y, settings);
return(borrow.Value.CreateValueDiffOrNull());
}
}
/// <summary>
/// Initializes a new instance of the <see cref="DirtyTrackerNode"/> class.
/// A call to Initialize is needed after the ctor due to that we need to fetch child nodes and the graph can contain self
/// </summary>
private DirtyTrackerNode(IRefCounted <ReferencePair> refCountedPair, PropertiesSettings settings, bool isRoot)
{
this.refCountedPair = refCountedPair;
var x = refCountedPair.Value.X;
var y = refCountedPair.Value.Y;
this.children = ChildNodes <DirtyTrackerNode> .Borrow();
this.xNode = RootChanges.GetOrCreate(x, settings, isRoot);
this.yNode = RootChanges.GetOrCreate(y, settings, isRoot);
this.xNode.Value.PropertyChange += this.OnTrackedPropertyChange;
this.yNode.Value.PropertyChange += this.OnTrackedPropertyChange;
this.IsTrackingCollectionItems = Is.Enumerable(x, y) &&
!settings.IsImmutable(x.GetType().GetItemType()) &&
!settings.IsImmutable(y.GetType().GetItemType());
if (Is.NotifyingCollections(x, y))
{
this.xNode.Value.Add += this.OnTrackedAdd;
this.xNode.Value.Remove += this.OnTrackedRemove;
this.xNode.Value.Replace += this.OnTrackedReplace;
this.xNode.Value.Move += this.OnTrackedMove;
this.xNode.Value.Reset += this.OnTrackedReset;
this.yNode.Value.Add += this.OnTrackedAdd;
this.yNode.Value.Remove += this.OnTrackedRemove;
this.yNode.Value.Replace += this.OnTrackedReplace;
this.yNode.Value.Move += this.OnTrackedMove;
this.yNode.Value.Reset += this.OnTrackedReset;
}
var builder = DiffBuilder.GetOrCreate(x, y, settings);
builder.Value.UpdateDiffs(x, y, settings);
builder.Value.Refresh();
this.refcountedDiffBuilder = builder;
this.isDirty = !this.Builder.IsEmpty;
}
