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Description
The following code builds, but see the comment for which critical information has to be removed for said build to succeed:
class Base<T> {
const Base();
}
class BaseConverter<T> extends JsonConverter<Base, Map<String, Object?>> {
const BaseConverter();
@override
Map<String, Object?> toJson(Base object) => {};
@override
Base fromJson(Map<String, Object?> json) => Base();
}
@JsonSerializable()
class Data<T> extends Base<T> {
Data({
required this.data,
required this.name,
});
factory Data.fromJson(Map<String, dynamic> json) => _$DataFromJson(json);
final String name;
@BaseConverter()
// Ideally, this would be Base<T>, but defining it so breaks the build
final Base data;
Map<String, dynamic> toJson() => _$DataToJson(this);
}Changing final Base data to final Base<T> data results in this error:
[SEVERE] json_serializable on lib/src/data.dart:
Could not generate `fromJson` code for `data`.
To support the type `Base` you can:
* Use `JsonConverter`
https://pub.dev/documentation/json_annotation/latest/json_annotation/JsonConverter-class.html
* Use `JsonKey` fields `fromJson` and `toJson`
https://pub.dev/documentation/json_annotation/latest/json_annotation/JsonKey/fromJson.html
https://pub.dev/documentation/json_annotation/latest/json_annotation/JsonKey/toJson.html
package:json_serializable_test/src/data.dart:30:17
╷
[line number] │ final Base<T> data;
This despite the fact that a JsonConverter is clearly being used.
For posterity, I originally reported this at rrousselGit/freezed#1074, and was (correctly, it seems) directed here.
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