private static void PopActiveFields()
{
while (ActiveFields.Count > 0)
{
ValueData data = ActiveFields.Pop();
if (data == null)
{
break; // The marker
}
ValueAccess field = data.Access;
object newValue = data.Access.Get(data.Target);
bool changed = !Equals(newValue, data.Value);
Dictionary <object, ValueChangeRequest> fieldBuffer = BufferedChanges.Assert(field);
if (fieldBuffer.TryGetValue(data.Target, out ValueChangeRequest cached))
{
if (changed && cached.RequestProcessed)
{
cached.RequestProcessed = false;
}
cached.RequestedValue = newValue;
field.Set(data.Target, cached.LatestActualValue);
continue;
}
if (!changed)
{
continue;
}
fieldBuffer[data.Target] = new ValueChangeRequest
{
LatestActualValue = data.Value,
RequestedValue = newValue
};
field.Set(data.Target, data.Value);
}
}
private static void OnBeforeExpectedChange(this ValueAccess access, object target)
{
object value;
if (BufferedChanges.ContainsKey(access) &&
BufferedChanges[access].TryGetValue(target, out ValueChangeRequest cache))
{
value = cache.RequestedValue;
access.Set(target, value);
}
else
{
value = access.Get(target);
}
ActiveFields.Push(new ValueData(access, target, value));
}