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! Waypoint) return false;
  Waypoint _other = other;
  return coordinates == _other.coordinates &&
      type == _other.type &&
      transitRadiusInMeters == _other.transitRadiusInMeters &&
      headingInDegrees == _other.headingInDegrees &&
      sideOfStreetHint == _other.sideOfStreetHint &&
      displayLocation == _other.displayLocation &&
      minCourseDistanceInMeters == _other.minCourseDistanceInMeters &&
      nameHint == _other.nameHint &&
      matchSideOfStreet == _other.matchSideOfStreet &&
      duration == _other.duration &&
      segmentHint == _other.segmentHint &&
      onRoadThresholdInMeters == _other.onRoadThresholdInMeters &&
      chargingStop == _other.chargingStop &&
      currentWeightChangeInKilograms == _other.currentWeightChangeInKilograms;
}