EnumClass code generation does not support Dart 2.17 super syntax

[maxlapides]

Currently, built_value expects EnumClasses to look like this:

class TestEnum extends EnumClass {
  const TestEnum._(String name) : super(name);

  static Serializer<TestEnum> get serializer => _$testEnumSerializer;

  static const TestEnum yes = _$yes;
  static const TestEnum no = _$no;
  static const TestEnum maybe = _$maybe;

  static BuiltSet<TestEnum> get values => _$values;
  static TestEnum valueOf(String name) => _$valueOf(name);
}

As of Dart 2.17, you can rewrite that like this:

class TestEnum extends EnumClass {
  const TestEnum._(super.name);

  static Serializer<TestEnum> get serializer => _$testEnumSerializer;

  static const TestEnum yes = _$yes;
  static const TestEnum no = _$no;
  static const TestEnum maybe = _$maybe;

  static BuiltSet<TestEnum> get values => _$values;
  static TestEnum valueOf(String name) => _$valueOf(name);
}

But, this produces an error during code generation:

Please make the following changes to use EnumClass:

1. Have exactly one constructor: const TestEnum._(String name) : super(name);

[davidmorgan]

Thanks!

2.17 also adds enums that support code, which should mostly make EnumClass unnecessary ... except that we'll still want them to be serializable. I need to take a deeper look...

[Rimantovas]

Is there a workaround?

[davidmorgan]

No, you'll have to write it the old way for now.

[kuhnroyal]

@davidmorgan Do you think you can find a quick way to allow the super syntax when you cut a release?

[davidmorgan]

Done :) will be released in 8.4.0 today. Thanks for commenting :)

[kuhnroyal]

Awesome, thanks!