library test;
import self as self;
import "dart:core" as core;
import "dart:async" as asy;
import "dart:_internal" as _in;

import "dart:async";

class A extends core::Object {
  synthetic constructor •() → self::A*
    : super core::Object::•()
    ;
  abstract member-signature get _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method toString() → core::String*; -> core::Object::toString
  abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get runtimeType() → core::Type*; -> core::Object::runtimeType
}
class B extends self::A {
  synthetic constructor •() → self::B*
    : super self::A::•()
    ;
}
class C extends self::A {
  synthetic constructor •() → self::C*
    : super self::A::•()
    ;
}
static method main() → dynamic /* originally async */ {
  final asy::_Future<dynamic>* :async_future = new asy::_Future::•<dynamic>();
  core::bool* :is_sync = false;
  dynamic :return_value;
  (dynamic) →* dynamic :async_op_then;
  (core::Object*, core::StackTrace*) →* dynamic :async_op_error;
  core::int* :await_jump_var = 0;
  dynamic :await_ctx_var;
  dynamic :saved_try_context_var0;
  function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding 
    try {
      #L1:
      {
        asy::Future<self::B*>* b = asy::Future::value<self::B*>(new self::B::•());
        asy::Future<self::C*>* c = asy::Future::value<self::C*>(new self::C::•());
        core::List<asy::Future<self::A*>*>* lll = core::_GrowableList::_literal2<asy::Future<self::A*>*>(b, c);
        [yield] let dynamic #t1 = asy::_awaitHelper(asy::Future::wait<self::A*>(lll), :async_op_then, :async_op_error) in null;
        core::List<self::A*>* result = _in::unsafeCast<core::List<self::A*>>(:result_or_exception);
        [yield] let dynamic #t2 = asy::_awaitHelper(asy::Future::wait<self::A*>(core::_GrowableList::_literal2<asy::Future<self::A*>*>(b, c)), :async_op_then, :async_op_error) in null;
        core::List<self::A*>* result2 = _in::unsafeCast<core::List<self::A*>>(:result_or_exception);
        core::List<self::A*>* list = result;
        list = result2;
      }
      asy::_completeWithNoFutureOnAsyncReturn(:async_future, :return_value, :is_sync);
      return;
    }
    on dynamic catch(dynamic exception, core::StackTrace* stack_trace) {
      asy::_completeOnAsyncError(:async_future, exception, stack_trace, :is_sync);
    }
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_op(null, null){() →* dynamic};
  :is_sync = true;
  return :async_future;
}