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

class A extends core::Object {
  field core::int? foo;
  field self::A bar;
  constructor •(self::A bar) → self::A
    ;
}
class B extends core::Object {
  synthetic constructor •() → self::B
    ;
}
extension Extension on self::B {
  get fooExtension = self::Extension|get#fooExtension;
  get barExtension = self::Extension|get#barExtension;
  set fooExtension = self::Extension|set#fooExtension;
}
static method test<T extends self::A?>(self::A? a, self::test::T% t, dynamic d, core::int x) → dynamic
  ;
static method Extension|get#fooExtension(lowered final self::B #this) → core::int?
  ;
static method Extension|set#fooExtension(lowered final self::B #this, core::int? value) → void
  ;
static method Extension|get#barExtension(lowered final self::B #this) → self::B
  ;
static method testExtension<T extends self::B?>(self::B? b, self::testExtension::T% t, core::int x) → dynamic
  ;
static method main() → dynamic
  ;