UnmodifiableSetMixin<E> class Null safety

Mixin class that implements a throwing version of all set operations that change the Set.

Implemented types
Implementers
Available Extensions

Constructors

UnmodifiableSetMixin()

Properties

first → E
Returns the first element.
read-onlyinherited
hashCode → int
The hash code for this object.
read-onlyinherited
isEmpty → bool
Whether this collection has no elements.
read-onlyinherited
isNotEmpty → bool
Whether this collection has at least one element.
read-onlyinherited
iterator → Iterator<E>
An iterator that iterates over the elements of this set.
read-onlyinherited
last → E
Returns the last element.
read-onlyinherited
length → int
Returns the number of elements in the iterable.
read-onlyinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
single → E
Checks that this iterable has only one element, and returns that element.
read-onlyinherited

Methods

add(E value) → bool
Throws an UnsupportedError; operations that change the set are disallowed.
override
addAll(Iterable<E> elements) → void
Throws an UnsupportedError; operations that change the set are disallowed.
override
any(bool test(E element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
cast<R>() → Set<R>
Provides a view of this set as a set of R instances.
inherited
clear() → void
Throws an UnsupportedError; operations that change the set are disallowed.
override
contains(Object? value) → bool
Whether value is in the set.
inherited
containsAll(Iterable<Object?> other) → bool
Whether this set contains all the elements of other.
inherited
difference(Set<Object?> other) → Set<E>
Creates a new set with the elements of this that are not in other.
inherited
elementAt(int index) → E
Returns the indexth element.
inherited
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
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
followedBy(Iterable<E> other) → Iterable<E>
Returns 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
intersection(Set<Object?> other) → Set<E>
Creates a new set which is the intersection between this set and other.
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
lookup(Object? object) → E?
If an object equal to object is in the set, return it.
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 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.
inherited
remove(Object? value) → bool
Throws an UnsupportedError; operations that change the set are disallowed.
override
removeAll(Iterable elements) → void
Throws an UnsupportedError; operations that change the set are disallowed.
override
removeWhere(bool test(E)) → void
Throws an UnsupportedError; operations that change the set are disallowed.
override
retainAll(Iterable elements) → void
Throws an UnsupportedError; operations that change the set are disallowed.
override
retainWhere(bool test(E)) → void
Throws an UnsupportedError; operations that change the set are disallowed.
override
singleWhere(bool test(E element), {E orElse()?}) → 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 value)) → 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 value)) → Iterable<E>
Returns 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 with the same elements and behavior as this Set.
inherited
toString() → String
A string representation of this object.
inherited
union(Set<E> other) → Set<E>
Creates a new set which contains all the elements of this set and other.
inherited
where(bool test(E element)) → Iterable<E>
Returns a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() → Iterable<T>
Returns a new lazy Iterable with all elements that have type T.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited