SingleFieldMap class final

An unmodifiable map with one entry: the data of a value validated on its own (list items, or and aliases), cheaper than a map literal.

Inheritance

Constructors

SingleFieldMap(String _key, Object? _value)

Properties

entries → Iterable<MapEntry<Object?, Object?>>
The map entries of this Map.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
isEmpty → bool
Whether there is no key/value pair in the map.
no setteroverride
isNotEmpty → bool
Whether there is at least one key/value pair in the map.
no setteroverride
keys → Iterable<Object?>
The keys of this Map.
no setteroverride
length → int
The number of key/value pairs in the map.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
values → Iterable<Object?>
The values of this Map.
no setterinherited

Methods

addAll(Map<Object?, Object?> other) → void
This operation is not supported by an unmodifiable map.
inherited
addEntries(Iterable<MapEntry<Object?, Object?>> entries) → void
This operation is not supported by an unmodifiable 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
This operation is not supported by an unmodifiable map.
inherited
containsKey(Object? key) → bool
Whether this map contains the given key.
override
containsValue(Object? value) → bool
Whether this map contains the given value.
inherited
forEach(void action(Object? key, Object? value)) → void
Applies action to each key/value pair of the map.
inherited
map<K2, V2>(MapEntry<K2, V2> transform(Object? key, Object? 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(Object? key, Object? ifAbsent()) → Object?
This operation is not supported by an unmodifiable map.
inherited
remove(Object? key) → Object?
This operation is not supported by an unmodifiable map.
inherited
removeWhere(bool test(Object? key, Object? value)) → void
This operation is not supported by an unmodifiable map.
inherited
toString() → String
A string representation of this object.
inherited
update(Object? key, Object? update(Object? value), {Object? ifAbsent()?}) → Object?
This operation is not supported by an unmodifiable map.
inherited
updateAll(Object? update(Object? key, Object? value)) → void
This operation is not supported by an unmodifiable map.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited
operator [](Object? key) → Object?
The value for the given key, or null if key is not in the map.
override
operator []=(Object? key, Object? value) → void
This operation is not supported by an unmodifiable map.
inherited