addAll method
Prohibit method addAll()
inherited from the QueryableOrderedSet
. If
this was allowed, then the user would be able to bypass standard lifecycle
methods of the Component class.
Implementation
@Deprecated('Do not use, will be fully removed in v1.2.0')
@override
int addAll(Iterable<Component> c) {
throw UnsupportedError(
'Adding elements directly to a ComponentSet is prohibited; use '
'Component.addAll() instead',
);
}