SplayTreeSet<E>.from constructor
Creates a SplayTreeSet that contains all elements
.
The set works as if created by new SplayTreeSet<E>(compare, isValidKey)
.
All the elements
should be instances of E
and valid arguments to
compare
.
The elements
iterable itself may have any element type, so this
constructor can be used to down-cast a Set
, for example as:
Set<SuperType> superSet = ...;
Set<SubType> subSet =
new SplayTreeSet<SubType>.from(superSet.whereType<SubType>());
Implementation
factory SplayTreeSet.from(Iterable elements,
[int compare(E key1, E key2), bool isValidKey(potentialKey)]) {
SplayTreeSet<E> result = new SplayTreeSet<E>(compare, isValidKey);
for (final element in elements) {
E e = element;
result.add(e);
}
return result;
}