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! AdministrativeRules) return false;
  AdministrativeRules _other = other;
  return countryCode == _other.countryCode &&
      stateCode == _other.stateCode &&
      drivingSide == _other.drivingSide &&
      unitSystem == _other.unitSystem &&
      speedLimits == _other.speedLimits &&
      DeepCollectionEquality().equals(timeZoneOffsetsInMinutes, _other.timeZoneOffsetsInMinutes) &&
      daylightSavingPeriod == _other.daylightSavingPeriod &&
      isUturnRestricted == _other.isUturnRestricted &&
      DeepCollectionEquality().equals(headlightsRequirements, _other.headlightsRequirements) &&
      isTollRequired == _other.isTollRequired &&
      isTollStickerRequired == _other.isTollStickerRequired &&
      DeepCollectionEquality().equals(turnOnRedRegulations, _other.turnOnRedRegulations) &&
      DeepCollectionEquality().equals(parkingSideRegulations, _other.parkingSideRegulations) &&
      isCleanAirStickerRequired == _other.isCleanAirStickerRequired &&
      bloodAlcoholContentLimit == _other.bloodAlcoholContentLimit &&
      DeepCollectionEquality().equals(tollSystems, _other.tollSystems) &&
      preTripPlanning == _other.preTripPlanning;
}