operator == method

  1. @override
bool operator ==(
  1. Object other
)

The equality operator.

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

Override this method to specify a different equality relation on a class. The overriding method must still be an equivalence relation. That is, it must be:

  • Total: It must return a boolean for all arguments. It should never throw.

  • Reflexive: For all objects o, o == o must be true.

  • Symmetric: For all objects o1 and o2, o1 == o2 and o2 == o1 must either both be true, or both be false.

  • Transitive: For all objects o1, o2, and o3, if o1 == o2 and o2 == o3 are true, then o1 == o3 must be true.

The method should also be consistent over time, so whether two objects are equal should only change if at least one of the objects was modified.

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

Implementation

@override
bool operator ==(Object other) {
  if (identical(this, other)) return true;
  if (other is! LaneAccess) return false;
  LaneAccess _other = other;
  return automobiles == _other.automobiles &&
      buses == _other.buses &&
      taxis == _other.taxis &&
      carpools == _other.carpools &&
      pedestrians == _other.pedestrians &&
      trucks == _other.trucks &&
      throughTraffic == _other.throughTraffic &&
      deliveryVehicles == _other.deliveryVehicles &&
      emergencyVehicles == _other.emergencyVehicles &&
      motorcycles == _other.motorcycles;
}