Dart DocumentationbotGlobalId

GlobalId class

class GlobalId implements Hashable, Comparable {
  static int _globalId = 0;
  final int id;
  final int _hashCode;

  GlobalId._internal(int value) :
    id = value,
    _hashCode = Util.getHashCode([value]);

  factory GlobalId() {
    return new GlobalId._internal(_globalId++);
  }

  int compareTo(GlobalId other) => id.compareTo(other.id);

  int hashCode() => _hashCode;

  bool operator ==(GlobalId other) => other != null && other.id == id;
}

Implements

Comparable, Hashable

Constructors

factory GlobalId() #

factory GlobalId() {
  return new GlobalId._internal(_globalId++);
}

new GlobalId._internal(int value) #

GlobalId._internal(int value) :
  id = value,
  _hashCode = Util.getHashCode([value]);

Properties

final int id #

final int id;

final Type runtimeType #

inherited from Object

A representation of the runtime type of the object.

external Type get runtimeType;

Operators

bool operator ==(GlobalId other) #

The equality operator.

The default behavior for all Objects is to return true if and only if this and other are the same object.

If a subclass overrides the equality operator it should override the hashCode method as well to maintain consistency.

docs inherited from Object
bool operator ==(GlobalId other) => other != null && other.id == id;

Methods

int compareTo(GlobalId other) #

Compares this object to another Comparable

Returns a value like a Comparator when comparing this to other.

May throw an ArgumentError if other is of a type that is not comparable to this.

docs inherited from Comparable
int compareTo(GlobalId other) => id.compareTo(other.id);

factory GlobalId() #

factory GlobalId() {
  return new GlobalId._internal(_globalId++);
}

new GlobalId._internal(int value) #

GlobalId._internal(int value) :
  id = value,
  _hashCode = Util.getHashCode([value]);

int hashCode() #

Get a hash code for this object.

All objects have hash codes. Hash codes are guaranteed to be the same for objects that are equal when compared using the equality operator ==. Other than that there are no guarantees about the hash codes. They will not be consistent between runs and there are no distribution guarantees.

If a subclass overrides hashCode it should override the equality operator as well to maintain consistency.

docs inherited from Object
int hashCode() => _hashCode;

noSuchMethod(String name, List args) #

inherited from Object

noSuchMethod is invoked when users invoke a non-existant method on an object. The name of the method and the arguments of the invocation are passed to noSuchMethod. If noSuchMethod returns a value, that value becomes the result of the original invocation.

The default behavior of noSuchMethod is to throw a noSuchMethodError.

external Dynamic noSuchMethod(String name, List args);

const Object() #

inherited from Object

Creates a new Object instance.

Object instances have no meaningful state, and are only useful through their identity. An Object instance is equal to itself only.

const Object();

String toString() #

inherited from Object

Returns a string representation of this object.

external String toString();