library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/nnbd/issue_39286_2.dart:15:14: Warning: Operand of null-aware operation '!' has type 'String' which excludes null.
//   x..f()!.g()['Hi!']!..h()!.y = 2;
//              ^
//
// pkg/front_end/testcases/nnbd/issue_39286_2.dart:15:24: Warning: Operand of null-aware operation '!' has type 'C' which excludes null.
//  - 'C' is from 'pkg/front_end/testcases/nnbd/issue_39286_2.dart'.
//   x..f()!.g()['Hi!']!..h()!.y = 2;
//                        ^
//
import self as self;
import "dart:core" as core;

class C extends core::Object {
  field core::int y = 42;
  synthetic constructor •() → self::C
    : super core::Object::•()
    ;
  method f() → self::D?
    return new self::D::•();
  method h() → self::C
    return this;
}
class D extends core::Object {
  synthetic constructor •() → self::D
    : super core::Object::•()
    ;
  method g() → self::D
    return this;
  operator [](core::String s) → core::String {
    return "!${s}!";
  }
}
static method test(self::C x) → void {
  let final self::C #t1 = x in block {
    #t1.{self::C::f}(){() → self::D?}!.{self::D::g}(){() → self::D}.{self::D::[]}("Hi!"){(core::String) → core::String}!;
    #t1.{self::C::h}(){() → self::C}!.{self::C::y} = 2;
  } =>#t1;
}
static method main() → dynamic {
  self::test(new self::C::•());
}