library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/nnbd/switch_nullable_enum.dart:7:5: Error: A non-null value must be returned since the return type 'int' doesn't allow null.
// int method1(Enum? e) {
//     ^
//
import self as self;
import "dart:core" as core;

class Enum extends core::Object /*isEnum*/  {
  final field core::int index;
  final field core::String _name;
  static const field core::List<self::Enum> values = #C7;
  static const field self::Enum e1 = #C3;
  static const field self::Enum e2 = #C6;
  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 method1(self::Enum? e) → core::int {
  switch(e) {
    #L1:
    case #C3:
    case #C6:
      {
        return 0;
      }
  }
  return let final<BottomType> #t1 = invalid-expression "pkg/front_end/testcases/nnbd/switch_nullable_enum.dart:7:5: Error: A non-null value must be returned since the return type 'int' doesn't allow null.
int method1(Enum? e) {
    ^" in null;
}
static method method2(self::Enum? e) → core::int {
  switch(e) {
    #L2:
    case #C3:
    case #C6:
      {
        return 0;
      }
    #L3:
    case #C8:
      {
        return 1;
      }
  }
}
static method method3(self::Enum? e) → core::int {
  switch(e) {
    #L4:
    case #C3:
    case #C6:
      {
        return 0;
      }
    #L5:
    default:
      {
        return 1;
      }
  }
}
static method method4(self::Enum? e) → core::int {
  switch(e) {
    #L6:
    case #C3:
    case #C6:
      {
        return 0;
      }
    #L7:
    case #C8:
    default:
      {
        return 1;
      }
  }
}
static method test() → dynamic {
  self::method1(#C3);
}
static method main() → dynamic {
  self::expect(0, self::method2(#C3));
  self::expect(0, self::method2(#C6));
  self::expect(1, self::method2(null));
  self::expect(0, self::method3(#C3));
  self::expect(0, self::method3(#C6));
  self::expect(1, self::method3(null));
  self::expect(0, self::method4(#C3));
  self::expect(0, self::method4(#C6));
  self::expect(1, self::method4(null));
}
static method expect(dynamic expected, dynamic actual) → dynamic {
  if(!expected.{core::Object::==}(actual)) {
    throw "Expected ${expected}, actual ${actual}.";
  }
}

constants  {
  #C1 = 0
  #C2 = "Enum.e1"
  #C3 = self::Enum {index:#C1, _name:#C2}
  #C4 = 1
  #C5 = "Enum.e2"
  #C6 = self::Enum {index:#C4, _name:#C5}
  #C7 = <self::Enum*>[#C3, #C6]
  #C8 = null
}