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

import "dart:async";

static method test(asy::StreamController<void> _eventStreamController) → dynamic /* futureValueType= 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;
  dynamic :saved_try_context_var1;
  dynamic :exception0;
  dynamic :stack_trace0;
  function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding 
    try {
      #L1:
      {
        {
          asy::Stream<void> :stream = _eventStreamController.{asy::StreamController::stream}{asy::Stream<void>};
          asy::_StreamIterator<void>? :for-iterator = new asy::_StreamIterator::•<void>(:stream);
          try
            #L2:
            while (true) {
              dynamic #t1 = asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t2 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::moveNext}(){() → asy::Future<core::bool>}, :async_op_then, :async_op_error) in null;
              if(_in::unsafeCast<core::bool>(:result_or_exception)) {
                final void _ = :for-iterator.{asy::_StreamIterator::current}{void};
                {}
              }
              else
                break #L2;
            }
          finally
            if(!(:for-iterator.{asy::_StreamIterator::_subscription}{asy::StreamSubscription<void>?} == null)) {
              [yield] let dynamic #t3 = asy::_awaitHelper(:for-iterator.{asy::_StreamIterator::cancel}(){() → asy::Future<dynamic>}, :async_op_then, :async_op_error) in null;
              :result_or_exception;
            }
        }
      }
      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;
}
static method main() → dynamic {}