Mixin implementation of Set.
This class provides a base implementation of a Set
that depends only
on the abstract members: add, contains, lookup, remove,
iterator, length and toSet.
Some of the methods assume that toSet
creates a modifiable set.
If using this mixin for an unmodifiable set,
where toSet
should return an unmodifiable set,
it's necessary to reimplement
retainAll, union, intersection and difference.
Implementations of Set
using this mixin should consider also implementing
clear
in constant time. The default implementation works by removing every
element.
- Implements
-
- Set<E>
- Implemented by
Constructors
- SetMixin()
Properties
- first → E
-
read-only
- hashCode → int
-
Get a hash code for this object.
read-only, inherited - isEmpty → bool
-
read-only
- isNotEmpty → bool
-
read-only
- iterator → Iterator<E>
-
read-only
- last → E
-
read-only
- length → int
-
read-only
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited - single → E
-
read-only
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
add(
E element) → bool -
Adds
value
to the set. -
addAll(
Iterable<E> elements) → void -
Adds all
elements
to this Set. -
any(
bool test(E element)) → bool -
Checks whether any element of this iterable satisfies
test
. -
clear(
) → void -
Removes all elements in the set.
-
contains(
Object element) → bool -
Returns true if
value
is in the set. -
containsAll(
Iterable<Object> other) → bool -
Returns whether this Set contains all the elements of
other
. -
difference(
Set<Object> other) → Set<E> -
Returns a new set with the elements of this that are not in
other
. -
elementAt(
int index) → E -
Returns the
index
th element. -
every(
bool f(E element)) → bool -
Checks whether every element of this iterable satisfies
test
. -
expand(
Iterable f(E element)) → Iterable -
Expands each element of this
Iterable
into zero or more elements. -
firstWhere(
bool test(E value), {E orElse()}) → E -
Returns the first element that satisfies the given predicate
test
. -
fold(
initialValue, dynamic combine(previousValue, E element)) → dynamic -
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
-
forEach(
void f(E element)) → void -
Applies the function
f
to each element of this collection in iteration order. -
intersection(
Set<Object> other) → Set<E> -
Returns a new set which is the intersection between this set and
other
. -
join(
[String separator = ""]) → String -
Converts each element to a
String
and concatenates the strings. -
lastWhere(
bool test(E value), {E orElse()}) → E -
Returns the last element that satisfies the given predicate
test
. -
lookup(
Object element) → E -
If an object equal to
object
is in the set, return it. -
map(
dynamic f(E element)) → Iterable -
Returns a new lazy
Iterable
with elements that are created by callingf
on each element of thisIterable
in iteration order. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
reduce(
E combine(E value, E element)) → E -
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
-
remove(
Object element) → bool -
Removes
value
from the set. Returns true ifvalue
was in the set. Returns false otherwise. The method has no effect ifvalue
value was not in the set. -
removeAll(
Iterable<Object> elements) → void -
Removes each element of
elements
from this set. -
removeWhere(
bool test(E element)) → void -
Removes all elements of this set that satisfy
test
. -
retainAll(
Iterable<Object> elements) → void -
Removes all elements of this set that are not elements in
elements
. -
retainWhere(
bool test(E element)) → void -
Removes all elements of this set that fail to satisfy
test
. -
singleWhere(
bool test(E value)) → E -
Returns the single element that satisfies
test
. -
skip(
int n) → Iterable<E> -
Returns an
Iterable
that provides all but the firstcount
elements. -
skipWhile(
bool test(E value)) → Iterable<E> -
Returns an
Iterable
that skips leading elements whiletest
is satisfied. -
take(
int n) → Iterable<E> -
Returns a lazy iterable of the
count
first elements of this iterable. -
takeWhile(
bool test(E value)) → Iterable<E> -
Returns a lazy iterable of the leading elements satisfying
test
. -
toList(
{bool growable: true}) → List<E> -
Creates a
List
containing the elements of thisIterable
. -
toSet(
) → Set<E> -
Creates a
Set
containing the same elements as this iterable. -
toString(
) → String -
Returns a string representation of this object.
-
union(
Set<E> other) → Set<E> -
Returns a new set which contains all the elements of this set and
other
. -
where(
bool f(E element)) → Iterable<E> -
Returns a new lazy
Iterable
with all elements that satisfy the predicatetest
.