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! TrafficIncidentVehicleRestriction) return false;
  TrafficIncidentVehicleRestriction _other = other;
  return isRestrictedAlways == _other.isRestrictedAlways &&
      isDieselFuelRestricted == _other.isDieselFuelRestricted &&
      isPetrolFuelRestricted == _other.isPetrolFuelRestricted &&
      isLpgFuelRestricted == _other.isLpgFuelRestricted &&
      isCaravanRestricted == _other.isCaravanRestricted &&
      isTrailerRestricted == _other.isTrailerRestricted &&
      isDrivingWithoutSnowChainsRestricted == _other.isDrivingWithoutSnowChainsRestricted &&
      isDrivingWithoutWinterTyresRestricted == _other.isDrivingWithoutWinterTyresRestricted &&
      isEvenNumberPlateRestricted == _other.isEvenNumberPlateRestricted &&
      isOddNumberPlateRestricted == _other.isOddNumberPlateRestricted &&
      isThroughTrafficRestricted == _other.isThroughTrafficRestricted &&
      isResidentsTrafficRestricted == _other.isResidentsTrafficRestricted &&
      isDestinationInIncidentAreaRestricted == _other.isDestinationInIncidentAreaRestricted &&
      isEuro3EmissionStandardRestricted == _other.isEuro3EmissionStandardRestricted &&
      isEuro4EmissionStandardRestricted == _other.isEuro4EmissionStandardRestricted &&
      isEuro5EmissionStandardRestricted == _other.isEuro5EmissionStandardRestricted &&
      restrictedIfGrossWeightMoreThanInKilograms == _other.restrictedIfGrossWeightMoreThanInKilograms &&
      restrictedIfGrossWeightLessThanInKilograms == _other.restrictedIfGrossWeightLessThanInKilograms &&
      restrictedIfAxleWeightMoreThanInKilograms == _other.restrictedIfAxleWeightMoreThanInKilograms &&
      restrictedIfAxleWeightLessThanInKilograms == _other.restrictedIfAxleWeightLessThanInKilograms &&
      restrictedIfLongerThanInCentimeters == _other.restrictedIfLongerThanInCentimeters &&
      restrictedIfShorterThanInCentimeters == _other.restrictedIfShorterThanInCentimeters &&
      restrictedIfHigherThanInCentimeters == _other.restrictedIfHigherThanInCentimeters &&
      restrictedIfLowerThanInCentimeters == _other.restrictedIfLowerThanInCentimeters &&
      restrictedIfWiderThanInCentimeters == _other.restrictedIfWiderThanInCentimeters &&
      restrictedIfNarrowerThanInCentimeters == _other.restrictedIfNarrowerThanInCentimeters &&
      restrictedIfOccupantsMoreThan == _other.restrictedIfOccupantsMoreThan &&
      restrictedIfOccupantsFewerThan == _other.restrictedIfOccupantsFewerThan;
}