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

static method test() → 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:
      {
        core::Object* o;
        {
          core::Iterator<dynamic>* :sync-for-iterator = (o as{TypeError} core::Iterable<dynamic>*).{core::Iterable::iterator}{core::Iterator<dynamic>*};
          for (; :sync-for-iterator.{core::Iterator::moveNext}(){() → core::bool}; ) {
            dynamic x = :sync-for-iterator.{core::Iterator::current}{dynamic};
            {}
          }
        }
        {
          asy::Stream<dynamic>* :stream = o as{TypeError} asy::Stream<dynamic>*;
          asy::_StreamIterator<dynamic>* :for-iterator = new asy::_StreamIterator::•<dynamic>(: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)) {
                dynamic x = :for-iterator.{asy::_StreamIterator::current}{dynamic};
                {}
              }
              else
                break #L2;
            }
          finally
            if(!(:for-iterator.{asy::_StreamIterator::_subscription}{asy::StreamSubscription<dynamic>?} == 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;
            }
        }
        core::int* y;
        {
          core::Iterator<dynamic>* :sync-for-iterator = (o as{TypeError} core::Iterable<dynamic>*).{core::Iterable::iterator}{core::Iterator<dynamic>*};
          for (; :sync-for-iterator.{core::Iterator::moveNext}(){() → core::bool}; ) {
            final dynamic #t4 = :sync-for-iterator.{core::Iterator::current}{dynamic};
            {
              y = #t4 as{TypeError,ForDynamic} core::int*;
            }
          }
        }
        {
          asy::Stream<dynamic>* :stream = o as{TypeError} asy::Stream<dynamic>*;
          asy::_StreamIterator<dynamic>* :for-iterator = new asy::_StreamIterator::•<dynamic>(:stream);
          try
            #L3:
            while (true) {
              dynamic #t5 = asy::_asyncStarMoveNextHelper(:stream);
              [yield] let dynamic #t6 = 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 dynamic #t7 = :for-iterator.{asy::_StreamIterator::current}{dynamic};
                {
                  y = #t7 as{TypeError,ForDynamic} core::int*;
                }
              }
              else
                break #L3;
            }
          finally
            if(!(:for-iterator.{asy::_StreamIterator::_subscription}{asy::StreamSubscription<dynamic>?} == null)) {
              [yield] let dynamic #t8 = 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 {}