List based Queue.

Keeps a cyclic buffer of elements, and grows to a larger buffer when it fills up. This guarantees constant time peek and remove operations, and amortized constant time add operations.

The structure is efficient for any queue or stack usage.

Inheritance
  • Object
  • Iterable<T>
  • EfficientLengthIterable<E>
  • ListIterable<E>
  • ListQueue
Implements

Constructors

ListQueue([int initialCapacity ])

Create an empty queue.

ListQueue.from(Iterable elements)

Create a ListQueue containing all elements.

factory

Properties

first → E

read-only
isEmpty → bool

read-only
iterator → Iterator<E>

read-only
last → E

read-only
length → int

read-only
single → E

read-only
hashCode → int

The hash code for this object.

read-only, inherited
isNotEmpty → bool

Returns true if there is at least one element in this collection.

read-only, inherited
runtimeType → Type

A representation of the runtime type of the object.

read-only, inherited

Operators

operator ==(other) → bool

The equality operator.

inherited

Methods

add(E value) → void

Adds value at the end of the queue.

addAll(Iterable<E> elements) → void

Adds all elements of iterable at the end of the queue. The length of the queue is extended by the length of iterable.

addFirst(E value) → void

Adds value at the beginning of the queue.

addLast(E value) → void

Adds value at the end of the queue.

clear() → void

Removes all elements in the queue. The size of the queue becomes zero.

elementAt(int index) → E

Returns the indexth element.

forEach(void action(E element)) → void

Applies the function f to each element of this collection in iteration order.

remove(Object value) → bool

Remove a single instance of value from the queue.

removeFirst() → E

Removes and returns the first element of this queue.

removeLast() → E

Removes and returns the last element of the queue.

removeWhere(bool test(E element)) → void

Remove all elements matched by test.

retainWhere(bool test(E element)) → void

Remove all elements not matched by test.

toList({bool growable: true }) → List<E>

Creates a List containing the elements of this Iterable.

toString() → String

Returns a string representation of this object.

any(bool test(E element)) → bool

Checks whether any element of this iterable satisfies test.

inherited
contains(Object element) → bool

Returns true if the collection contains an element equal to element.

inherited
every(bool test(E element)) → bool

Checks whether every element of this iterable satisfies test.

inherited
expand<T>(Iterable<T> f(E element)) → Iterable<T>

Expands each element of this Iterable into zero or more elements.

inherited
firstWhere(bool test(E element), { E orElse() }) → E

Returns the first element that satisfies the given predicate test.

inherited
fold<T>(T initialValue, T combine(T previousValue, E element)) → T

Reduces a collection to a single value by iteratively combining each element of the collection with an existing value

inherited
join([String separator = "" ]) → String

Converts each element to a String and concatenates the strings.

inherited
lastWhere(bool test(E element), { E orElse() }) → E

Returns the last element that satisfies the given predicate test.

inherited
map<T>(T f(E element)) → Iterable<T>

Returns a new lazy Iterable with elements that are created by calling f on each element of this Iterable in iteration order.

inherited
noSuchMethod(Invocation invocation) → dynamic

Invoked when a non-existent method or property is accessed.

inherited
reduce(E combine(value, E element)) → E

Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.

inherited
singleWhere(bool test(E element)) → E

Returns the single element that satisfies test.

inherited
skip(int count) → Iterable<E>

Returns an Iterable that provides all but the first count elements.

inherited
skipWhile(bool test(E element)) → Iterable<E>

Returns an Iterable that skips leading elements while test is satisfied.

inherited
take(int count) → Iterable<E>

Returns a lazy iterable of the count first elements of this iterable.

inherited
takeWhile(bool test(E element)) → Iterable<E>

Returns a lazy iterable of the leading elements satisfying test.

inherited
toSet() → Set<E>

Creates a Set containing the same elements as this iterable.

inherited
where(bool test(E element)) → Iterable<E>

Returns a new lazy Iterable with all elements that satisfy the predicate test.

inherited