lib/src/equatable_utils.dart

import 'package:collection/collection.dart';

int mapPropsToHashCode(dynamic props) {
  int hashCode = 0;

  if (props is Map) {
    props.forEach((key, value) {
      final propHashCode = mapPropsToHashCode(key) ^ mapPropsToHashCode(value);
      hashCode = hashCode ^ propHashCode;
    });
  } else if (props is List || props is Iterable || props is Set) {
    props.forEach((prop) {
      final propHashCode =
          (prop is List || prop is Iterable || prop is Set || prop is Map)
              ? mapPropsToHashCode(prop)
              : prop.hashCode;
      hashCode = hashCode ^ propHashCode;
    });
  } else {
    hashCode = hashCode ^ props.hashCode;
  }

  return hashCode;
}

const DeepCollectionEquality _equality = DeepCollectionEquality();

bool equals(List list1, List list2) {
  if (identical(list1, list2)) return true;
  if (list1 == null || list2 == null) return false;
  int length = list1.length;
  if (length != list2.length) return false;

  for (int i = 0; i < length; i++) {
    final unit1 = list1[i];
    final unit2 = list2[i];

    if (unit1 is Iterable || unit1 is List || unit1 is Map || unit1 is Set) {
      if (!_equality.equals(unit1, unit2)) return false;
    } else if (unit1?.runtimeType != unit2?.runtimeType) {
      return false;
    } else if (unit1 != unit2) {
      return false;
    }
  }
  return true;
}