UnmodifiableCollectiveListAsync<E> class

An async callable interface for UnmodifiableCollectiveList that prevents modifications.

This class provides async versions of list operations that all throw UnsupportedError since the underlying list is unmodifiable. It implements the same interface as CollectiveListAsync but with enforced immutability.

Key characteristics:

  • All mutating operations throw UnsupportedError
  • Read operations work normally
  • Maintains consistency with synchronous unmodifiable behavior
  • Provides clear error messages for attempted modifications

Example:

final unmodifiable = CollectiveList<int>([1, 2, 3]).unmodifiable.async;
await unmodifiable.add(4); // Throws UnsupportedError
Inheritance
Implemented types
Available extensions

Constructors

UnmodifiableCollectiveListAsync.new(CollectiveList<E> collective)
Creates an async callable for an unmodifiable list.
const

Properties

async → CollectiveListAsync<E>
Creates a Async CollectiveList for async modifiable operations
no setterinherited
first ↔ E
The first element.
getter/setter pairinherited
firstOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The first element of this iterator, or null if the iterable is empty.
no setter
hashCode → int
The hash code for this object.
no setterinherited
indexed → Iterable<(int, T)>

Available on Iterable<T>, provided by the IterableExtensions extension

Pairs of elements of the indices and elements of this iterable.
no setter
isEmpty → bool
Whether this collection has no elements.
no setterinherited
isNotEmpty → bool
Whether this collection has at least one element.
no setterinherited
iterator → Iterator<E>
A new Iterator that allows iterating the elements of this Iterable.
no setterinherited
last → E
The last element.
no setterinherited
lastOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The last element of this iterable, or null if the iterable is empty.
no setter
length ↔ int
The number of elements in this Iterable.
getter/setter pairinherited
modifiable → Iterable<Function>
Returns an iterable containing modifiable functions.
no setteroverride
nonNulls → Iterable<T>

Available on Iterable<T?>, provided by the NullableIterableExtensions extension

The non-null elements of this iterable.
no setter
reversed → Iterable<E>
An Iterable of the objects in this list in reverse order.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
single → E
Checks that this iterable has only one element, and returns that element.
no setterinherited
singleOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The single element of this iterator, or null.
no setter
test → TestCollective<dynamic, Collective>
Gets the test object associated with the cell.
no setterinherited
unmodifiable → CollectiveList<E>
Gets an unmodifiable view of this list.
no setteroverride
wait → Future<List<T>>

Available on Iterable<Future<T>>, provided by the FutureIterable extension

Waits for futures in parallel.
no setter

Methods

add(E element) → Future<void>
Async adds element to the list.
override
addAll(Iterable<E> elements) → Future<void>
Async adds all elements to the list.
override
any(bool test(E element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
apply(Function function, List? positionalArguments, [Map<Symbol, dynamic>? namedArguments]) → Future
Asynchronously applies a function through the cell's validation system.
inherited
asMap() → Map<int, E>
An unmodifiable Map view of this list.
inherited
asNameMap() → Map<String, T>

Available on Iterable<T>, provided by the EnumByName extension

Creates a map from the names of enum values to the values.
byName(String name) → T

Available on Iterable<T>, provided by the EnumByName extension

Finds the enum value in this list with name name.
cast<R>() → Iterable<R>
A view of this iterable as an iterable of R instances.
inherited
clear() → Future<void>
Async removes all elements from the list.
override
contains(Object? element) → bool
Whether the collection contains an element equal to element.
inherited
deputy({covariant TestCollective<dynamic, Collective>? test, covariant MapObject? mapObject}) → CollectiveList<E>
Creates a delegated view with modified behavior.
inherited
elementAt(int index) → E
Returns the indexth element.
inherited
elementAtOrNull(int index) → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The element at position index of this iterable, or null.
every(bool test(E element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(E element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
fillRange(int start, int end, [dynamic fillValue]) → Future<void>
Async fills a range of elements with fillValue.
override
firstWhere(bool test(E element), {E orElse()?}) → E
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
followedBy(Iterable<E> other) → Iterable<E>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(E element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
getRange(int start, int end) → Iterable<E>
Creates an Iterable that iterates over a range of elements.
inherited
indexOf(E element, [int start = 0]) → int
The first index of element in this list.
inherited
indexWhere(bool test(E element), [int start = 0]) → int
The first index in the list that satisfies the provided test.
inherited
insert(int index, E element) → Future<void>
Async inserts element at index.
override
insertAll(int index, Iterable elements) → Future<void>
Async inserts all elements at index.
override
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
lastIndexOf(E element, [int? start]) → int
The last index of element in this list.
inherited
lastIndexWhere(bool test(E element), [int? start]) → int
The last index in the list that satisfies the provided test.
inherited
lastWhere(bool test(E element), {E orElse()?}) → E
The last element that satisfies the given predicate test.
inherited
map<T>(T toElement(E e)) → Iterable<T>
The current elements of this iterable modified by toElement.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent 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.
inherited
remove(Object? element) → Future<bool>
Async removes element from the list.
override
removeAt(int index) → Future<void>
Async removes the element at index.
override
removeLast() → Future<void>
Async removes the last element.
override
removeRange(int start, int end) → Future<void>
Removes a range of elements from the list.
override
removeWhere(bool test(E element)) → Future<void>
Async removes elements from the list that satisfy the test.
override
replaceRange(int start, int end, Iterable newContents) → Future<void>
Replaces a range of elements with the elements of replacements.
override
retainWhere(bool test(E element)) → Future<void>
Async removes elements from the list that doesn't satisfy the test.
override
setAll(int index, Iterable elements) → Future<void>
The elements of iterable are written into this list, starting at position index. This operation does not increase the length of the list.
override
setFirst(E value) → Future<void>
Async sets the first element of the list
override
setRange(int start, int end, Iterable newContents, [int skipCount = 0]) → Future<void>
Writes some elements of iterable into a range of this list.
override
setValueAt(int index, E value) → Future<void>
Async sets the value at the given index in the list to value.
override
shuffle([Random? random]) → void
Shuffles the elements of this list randomly.
override
singleWhere(bool test(E element), {E orElse()?}) → E
The single element that satisfies test.
inherited
skip(int count) → Iterable<E>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(E value)) → Iterable<E>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
sort([int compare(E a, E b)?]) → void
Sorts this list according to the order specified by the compare function.
override
sublist(int start, [int? end]) → List<E>
The sublist of this list from start to end.
inherited
take(int count) → Iterable<E>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(E value)) → Iterable<E>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toList({bool growable = true}) → List<E>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<E>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
Returns a string representation of (some of) the elements of this.
inherited
where(bool test(E element)) → Iterable<E>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() → Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
inherited

Operators

operator +(List<E> other) → List<E>
Creates a new CollectiveList by concatenating this list with another.
inherited
operator ==(Object other) → bool
The equality operator.
inherited
operator [](int index) → E
The object at the given index in the list
inherited
operator []=(int index, E value) → void
Sets the value at the given index in the list to value.
inherited