library #lib /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;
import "dart:ffi" as ffi;
import "dart:_internal" as _in;
import "dart:async" as asy;

import "dart:ffi";

class MyFinalizable extends core::Object implements ffi::Finalizable {
  constructor •() → self::MyFinalizable
    : super core::Object::•() {
    ;
    _in::reachabilityFence(this);
  }
}
static method main(core::List<core::String> arguments) → asy::Future<void> /* futureValueType= void */ /* originally async */ {
  final asy::_Future<void> :async_future = new asy::_Future::•<void>();
  core::bool* :is_sync = false;
  void :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:
      {
        [yield] let dynamic #t1 = asy::_awaitHelper(new self::MyFinalizable::•(), :async_op_then, :async_op_error) in null;
        final self::MyFinalizable myFinalizable = _in::unsafeCast<self::MyFinalizable>(:result_or_exception);
        _in::reachabilityFence(myFinalizable);
      }
      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;
}