UnmodifiableMapMixin<K, V> class abstract mixin

Mixin class that implements a throwing version of all map operations that change the Map.

Implemented types

• Map<K, V>

Available extensions

• MapX

Constructors

UnmodifiableMapMixin()

Properties

entries → Iterable<MapEntry<K, V>>

The map entries of this Map.

no setter, inherited

first ← dynamic

Throws an UnsupportedError; operations that change the map are disallowed.

no getter

hashCode → int

The hash code for this object.

no setter, inherited

isEmpty → bool

Whether there is no key/value pair in the map.

no setter, inherited

isNotEmpty → bool

Whether there is at least one key/value pair in the map.

no setter, inherited

keys → Iterable<K>

The keys of this Map.

no setter, inherited

last ← dynamic

Throws an UnsupportedError; operations that change the map are disallowed.

no getter

length → int

The number of key/value pairs in the map.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

values → Iterable<V>

The values of this Map.

no setter, inherited

Methods

addAll(Map<K, V> other) → void

Throws an UnsupportedError; operations that change the map are disallowed.

override

addEntries(Iterable<MapEntry<K, V>> newEntries) → void

Adds all key/value pairs of newEntries to this map.

inherited

cast<RK, RV>() → Map<RK, RV>

Provides a view of this map as having RK keys and RV instances, if necessary.

inherited

clear() → void

Throws an UnsupportedError; operations that change the map are disallowed.

override

containsKey(Object? key) → bool

Whether this map contains the given key.

inherited

containsValue(Object? value) → bool

Whether this map contains the given value.

inherited

forEach(void action(K key, V value)) → void

Applies action to each key/value pair of the map.

inherited

getOrCompute<T>(K key, T computation()) → T?

Available on Map<K, V>?, provided by the MapX extension

getOrDefault<T>(K key, T defaultValue) → T?

Available on Map<K, V>?, provided by the MapX extension

map<K2, V2>(MapEntry<K2, V2> convert(K key, V value)) → Map<K2, V2>

Returns a new map where all entries of this map are transformed by the given convert function.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

putIfAbsent(K key, V ifAbsent()) → V

Throws an UnsupportedError; operations that change the map are disallowed.

override

remove(Object? key) → V

Throws an UnsupportedError; operations that change the map are disallowed.

override

removeWhere(bool test(K key, V value)) → void

Removes all entries of this map that satisfy the given test.

inherited

toString() → String

A string representation of this object.

inherited

update(K key, V update(V value), {V ifAbsent()?}) → V

Updates the value for the provided key.

inherited

updateAll(V update(K key, V value)) → void

Updates all values.

inherited

withValue<T>(Object? key, ValueSetter<T> onValue) → void

Available on Map<K, V>?, provided by the MapX extension

withValueOrDefault<T>(Object? key, ValueSetter<T> onValue, T def) → void

Available on Map<K, V>?, provided by the MapX extension

Operators

operator ==(Object other) → bool

The equality operator.

inherited

operator [](Object? key) → V?

The value for the given key, or null if key is not in the map.

inherited

operator []=(K key, V value) → void

Throws an UnsupportedError; operations that change the map are disallowed.

override