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

class A extends core::Object {
  synthetic constructor •() → self::A*
    : super core::Object::•()
    ;
  method foo(dynamic x) → asy::Future<void>* /* originally async */ {
    final asy::_AsyncAwaitCompleter<void>* :async_completer = new asy::_AsyncAwaitCompleter::•<void>();
    FutureOr<void>* :return_value;
    dynamic :async_stack_trace;
    (dynamic) →* dynamic :async_op_then;
    (core::Object*, core::StackTrace*) →* dynamic :async_op_error;
    core::int* :await_jump_var = 0;
    dynamic :await_ctx_var;
    function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
      try {
        #L1:
        {}
        asy::_completeOnAsyncReturn(:async_completer, :return_value);
        return;
      }
      on dynamic catch(dynamic exception, core::StackTrace* stack_trace) {
        :async_completer.{asy::Completer::completeError}(exception, stack_trace);
      }
    :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
    :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
    :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
    :async_completer.{asy::_AsyncAwaitCompleter::start}(:async_op);
    return :async_completer.{asy::Completer::future};
  }
  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 core::Object {
  synthetic constructor •() → self::B*
    : super core::Object::•()
    ;
  method bar(dynamic x) → asy::Future<void>* /* originally async */ {
    final asy::_AsyncAwaitCompleter<void>* :async_completer = new asy::_AsyncAwaitCompleter::•<void>();
    FutureOr<void>* :return_value;
    dynamic :async_stack_trace;
    (dynamic) →* dynamic :async_op_then;
    (core::Object*, core::StackTrace*) →* dynamic :async_op_error;
    core::int* :await_jump_var = 0;
    dynamic :await_ctx_var;
    function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
      try {
        #L2:
        {}
        asy::_completeOnAsyncReturn(:async_completer, :return_value);
        return;
      }
      on dynamic catch(dynamic exception, core::StackTrace* stack_trace) {
        :async_completer.{asy::Completer::completeError}(exception, stack_trace);
      }
    :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
    :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
    :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
    :async_completer.{asy::_AsyncAwaitCompleter::start}(:async_op);
    return :async_completer.{asy::Completer::future};
  }
  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
}
static method main() → dynamic /* originally async */ {
  final asy::_AsyncAwaitCompleter<dynamic>* :async_completer = new asy::_AsyncAwaitCompleter::•<dynamic>();
  FutureOr<dynamic>* :return_value;
  dynamic :async_stack_trace;
  (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 :async_temporary_0;
  dynamic :async_temporary_1;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L3:
      {
        :async_temporary_1 = new self::A::•();
        [yield] let dynamic #t1 = asy::_awaitHelper(null, :async_op_then, :async_op_error, :async_op) in null;
        :async_temporary_1 = _in::unsafeCast<self::A*>(:async_temporary_1).{self::A::foo}(_in::unsafeCast<core::Null?>(:result));
        :async_temporary_0 = new self::B::•();
        [yield] let dynamic #t2 = asy::_awaitHelper(null, :async_op_then, :async_op_error, :async_op) in null;
        :return_value = <asy::Future<void>*>[_in::unsafeCast<asy::Future<void>*>(:async_temporary_1), _in::unsafeCast<self::B*>(:async_temporary_0).{self::B::bar}(_in::unsafeCast<core::Null?>(:result))];
        break #L3;
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic exception, core::StackTrace* stack_trace) {
      :async_completer.{asy::Completer::completeError}(exception, stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_completer.{asy::_AsyncAwaitCompleter::start}(:async_op);
  return :async_completer.{asy::Completer::future};
}