public static UniRx.IObservable <TProperty> ObserveEveryValueChanged <TSource, TProperty>(this TSource source, Func <TSource, TProperty> propertySelector, FrameCountType frameCountType, IEqualityComparer <TProperty> comparer, bool fastDestroyCheck) where TSource : class { if (source == null) { return(Observable.Empty <TProperty>()); } if (comparer == null) { comparer = UnityEqualityComparer.GetDefault <TProperty>(); } UnityEngine.Object unityObject = source as UnityEngine.Object; bool flag = source is UnityEngine.Object; if (flag && unityObject == null) { return(Observable.Empty <TProperty>()); } if (flag) { return(Observable.FromMicroCoroutine(delegate(UniRx.IObserver <TProperty> observer, CancellationToken cancellationToken) { if (unityObject != null) { TProperty val2 = default(TProperty); try { val2 = propertySelector((TSource)(object)unityObject); } catch (Exception error2) { observer.OnError(error2); return EmptyEnumerator(); } observer.OnNext(val2); return PublishUnityObjectValueChanged(unityObject, val2, propertySelector, comparer, observer, cancellationToken, fastDestroyCheck); } observer.OnCompleted(); return EmptyEnumerator(); }, frameCountType)); } WeakReference reference = new WeakReference(source); source = (TSource)null; return(Observable.FromMicroCoroutine(delegate(UniRx.IObserver <TProperty> observer, CancellationToken cancellationToken) { object target = reference.Target; if (target != null) { TProperty val = default(TProperty); try { val = propertySelector((TSource)target); } catch (Exception error) { observer.OnError(error); return EmptyEnumerator(); } finally { target = null; } observer.OnNext(val); return PublishPocoValueChanged(reference, val, propertySelector, comparer, observer, cancellationToken); } observer.OnCompleted(); return EmptyEnumerator(); }, frameCountType)); }