public static MemberExpression[] GetPath <T>(Expression <Func <T> > expression)
{
var visitor = new PathExpressionVisitor();
visitor.Visit(expression.Body);
return(Enumerable.Reverse(visitor._path).ToArray());
}
public NestedObservable(TClass source, Expression <Func <TClass, TProp> > propertyExpression)
{
var path = PathExpressionVisitor.GetPath(propertyExpression);
foreach (var pathItem in path)
{
var item = new PathItem(pathItem.Expression.Type.GetProperty(pathItem.Member.Name));
_path.Add(item);
}
_path.First().Source = source;
_path.Last().IsLast = true;
AssertPathNotifies(_path);
this.AddSubscriptions(0);
_value = new WeakReference(_path.Last().Value, false);
}