Why do we need to compare runtimeType? about equatable

[felangel]

Hi @anggaaryas 👋
Thanks for opening an issue!

Say we have the following:

import 'package:equatable/equatable.dart';

abstract class Animal extends Equatable {
  @override
  List<Object?> get props => [];
}

class Dog extends Animal {}

class Cat extends Animal {}

void main() {
  final cat = Cat();
  final dog = Dog();
  
  print(cat == dog); // false
}

If we remove the runtimeType check then an instance of a Cat will be considered equal to an instance of a Dog just because they are both of type Animal. Is that what you'd expect?

[anggaaryas]

Hmm OOP comparator...

My use case is only comparing the property. Dont know if this is just rare case.

[anggaaryas]

Oh hey, in my example, i use parent class as type. So it should compare as parent class

'''
Parent obj = Child()
'''

[felangel]

In those cases I suggest you override operator== manually.

[anggaaryas]

Then, make equals method accessible rather than copying the method