FromIterableIListMixin<T> mixin
This mixin implements all Iterable methods, plus operator [],
but it does NOT implement Iterable nor IList.
It is meant to help you wrap an IList into another class (composition). You must override the iter getter to return the inner IList. All other methods are efficiently implemented in terms of the iter.
Note: This class does NOT implement Iterable. Unfortunately, the expect
method in tests compares Iterables by comparing its items. So if you
create a class that implements Iterable and then, when you want to use the
expect method, it will just compare its items, completing ignoring its
operator ==.
If you need to iterate over this class, you can use the iter getter:
class MyClass with IterableLikeIListMixin<T> { ... }
MyClass obj = MyClass([1, 2, 3]);
for (int value in obj.iter) print(value);
Please note, if you really want to make your class Iterable, you can
just add the implements Iterable<T> to its declaration. For example:
class MyClass with IterableLikeIListMixin<T> implements Iterable<T> { ... }
MyClass obj = MyClass([1, 2, 3]);
for (int value in obj) print(value);
See also: FromIListMixin.
- Implemented types
Properties
- first → T
-
no setter
- firstOrNull → T?
-
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- isEmpty → bool
-
no setteroverride
- isNotEmpty → bool
-
no setteroverride
-
iter
→ IList<
T> -
Classes
withFromIterableIListMixin must override this.no setter -
iterator
→ Iterator<
T> -
no setter
- last → T
-
no setter
- lastOrNull → T?
-
no setter
- length → int
-
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- single → T
-
no setter
- singleOrNull → T?
-
no setter
Methods
-
any(
Predicate< T> test) → bool -
cast<
R> () → Iterable< R> -
contains(
covariant T? element) → bool -
elementAt(
int index) → T -
every(
Predicate< T> test) → bool -
expand<
E> (Iterable< E> f(T)) → Iterable<E> -
firstWhere(
Predicate< T> test, {T orElse()?}) → T -
firstWhereOrNull(
Predicate< T> test) → T? -
fold<
E> (E initialValue, E combine(E previousValue, T element)) → E -
followedBy(
Iterable< T> other) → Iterable<T> -
forEach(
void f(T element)) → void -
join(
[String separator = ""]) → String -
lastWhere(
Predicate< T> test, {T orElse()?}) → T -
map<
E> (E f(T element)) → Iterable< E> -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reduce(
T combine(T value, T element)) → T -
singleWhere(
Predicate< T> test, {T orElse()?}) → T -
skip(
int count) → Iterable< T> -
skipWhile(
bool test(T value)) → Iterable< T> -
take(
int count) → Iterable< T> -
takeWhile(
bool test(T value)) → Iterable< T> -
toList(
{bool growable = true}) → List< T> -
toSet(
) → Set< T> -
toString(
) → String -
A string representation of this object.
override
-
where(
Predicate< T> test) → Iterable<T> -
whereType<
E> () → Iterable< E>
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
int index) → T