operator == method

@override bool operator ==(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;

  return other is Price &&
      other.id == id &&
      other.productToken == productToken &&
      other.currency == currency &&
      other.name == name &&
      other.active == active &&
      other.amount == amount &&
      other.taxes == taxes &&
      other.tiers == tiers &&
      other.description == description &&
      other.unitLabel == unitLabel &&
      other.metadata == metadata &&
      other.periodType == periodType &&
      other.periodLength == periodLength;
}