library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

import "dart:async";

class Enum extends core::Object /*isEnum*/  {
  final field core::int index;
  final field core::String _name;
  static const field core::List<self::Enum> values = const <self::Enum>[self::Enum::a, self::Enum::b];
  static const field self::Enum a = const self::Enum::•(0, "Enum.a");
  static const field self::Enum b = const self::Enum::•(1, "Enum.b");
  const constructor •(core::int index, core::String _name) → self::Enum
    : self::Enum::index = index, self::Enum::_name = _name, super core::Object::•()
    ;
  method toString() → core::String
    return this.{self::Enum::_name};
}
static method returnImplicit() → core::String
  ;
static method returnExplicit() → core::String
  ;
static method returnMixed(core::bool b) → core::String
  ;
static method returnAsync1() → asy::Future<dynamic> async 
  ;
static method returnAsync2() → FutureOr<dynamic> async 
  ;
static method returnAsync3() → FutureOr<core::int> async 
  ;
static method returnAsync4() → FutureOr<core::int?> async 
  ;
static method returnAsync5() → dynamic async 
  ;
static method returnAsync6() → asy::Future<core::int?> async 
  ;
static method returnAsync7() → asy::Future<core::int?> async 
  ;
static method yieldSync() → core::Iterable<dynamic> sync* 
  ;
static method yieldAsync() → asy::Stream<dynamic> async* 
  ;
static method caseReturn1(self::Enum e) → self::Enum
  ;
static method caseReturn2(self::Enum e) → self::Enum
  ;
static method localFunctions() → dynamic
  ;
static method main() → dynamic
  ;


Extra constant evaluation status:
Evaluated: ListLiteral @ org-dartlang-testcase:///return_null.dart:43:6 -> ListConstant(const <Enum>[const Enum{Enum.index: 0, Enum._name: "Enum.a"}, const Enum{Enum.index: 1, Enum._name: "Enum.b"}])
Evaluated: ConstructorInvocation @ org-dartlang-testcase:///return_null.dart:43:13 -> InstanceConstant(const Enum{Enum.index: 0, Enum._name: "Enum.a"})
Evaluated: ConstructorInvocation @ org-dartlang-testcase:///return_null.dart:43:16 -> InstanceConstant(const Enum{Enum.index: 1, Enum._name: "Enum.b"})
Extra constant evaluation: evaluated: 7, effectively constant: 3