ToJson generated code

[rodineijf]

Analyzing the generated file in the examples (example.g.dart) I founded this piece of code:

Map<String, dynamic> _$PersonToJson(Person instance) {
  final val = <String, dynamic>{
    'firstName': instance.firstName,
  };

  void writeNotNull(String key, dynamic value) {
    if (value != null) {
      val[key] = value;
    }
  }

  writeNotNull('middleName', instance.middleName);
  val['lastName'] = instance.lastName;
  val['date-of-birth'] = instance.dateOfBirth.toIso8601String();
  val['last-order'] = instance.lastOrder?.toIso8601String();
  val['orders'] = instance.orders; // HERE
  return val;
}

Should Orders be assigned directly? Should they not be assigned iterating and converting to json?

Example:

Map<String, dynamic> _$PersonToJson(Person instance) {
  final val = <String, dynamic>{
    'firstName': instance.firstName,
  };

  void writeNotNull(String key, dynamic value) {
    if (value != null) {
      val[key] = value;
    }
  }

  writeNotNull('middleName', instance.middleName);
  val['lastName'] = instance.lastName;
  val['date-of-birth'] = instance.dateOfBirth.toIso8601String();
  val['last-order'] = instance.lastOrder?.toIso8601String();
  val['orders'] = instance.orders?.map((i) => i.toJson())?.toList();
  return val;
}

[natebosch]

.toJson() is a method that works "magically" when using jsonEncode in the SDK. When serializing specifically with that encoder it will be called automatically.

You can enable the behavior you are looking for by configuring to enable explicitToJson.

https://pub.dev/documentation/json_annotation/latest/json_annotation/JsonSerializable/explicitToJson.html