Returns a view of this list as a list of
If this list contains only instances of
R, all read operations
will work correctly. If any operation tries to read an element
that is not an instance of
R, the access will throw instead.
Elements added to the list (e.g., by using add or addAll)
must be instance of
R to be valid arguments to the adding function,
and they must be instances of
E as well to be accepted by
this list as well.
Methods which accept
Object? as argument, like contains and remove,
will pass the argument directly to the this list's method
without any checks.
That means that you can do
successfully, even if it looks like it shouldn't have any effect.
Typically implemented as
List<R> cast<R>() => UnmodifiableListView(_source.cast<R>());