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

import "dart:async";

class X extends core::Object {
  final field dynamic x;
  final field dynamic y;
  constructor •(dynamic x, dynamic y) → self::X
    : self::X::x = x, self::X::y = y, super core::Object::•()
    ;
  method toString() → core::String
    return "X(${this.{self::X::x}{dynamic}}, ${this.{self::X::y}{dynamic}})";
}
class Y extends core::Object {
  synthetic constructor •() → self::Y
    : super core::Object::•()
    ;
  method f(dynamic _) → dynamic {}
}
static method f1() → asy::Future<core::List<core::Object>> /* originally async */ {
  final asy::_Future<core::List<core::Object>> :async_future = new asy::_Future::•<core::List<core::Object>>();
  core::bool* :is_sync = false;
  core::List<core::Object>? :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;
  function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding 
    try {
      #L1:
      {
        :return_value = core::_GrowableList::_literal1<core::Object>(1);
        break #L1;
      }
      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 f2() → core::List<core::Object>
  return core::_GrowableList::_literal1<core::Object>(2);
static method f3() → asy::Future<core::Object> /* originally async */ {
  final asy::_Future<core::Object> :async_future = new asy::_Future::•<core::Object>();
  core::bool* :is_sync = false;
  core::Object? :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;
  function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding 
    try {
      #L2:
      {
        :return_value = 3;
        break #L2;
      }
      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 foo() → asy::Future<self::X> /* originally async */ {
  final asy::_Future<self::X> :async_future = new asy::_Future::•<self::X>();
  core::bool* :is_sync = false;
  self::X? :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;
  self::Y :async_temporary_0;
  function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding 
    try {
      #L3:
      {
        final self::Y #t1 = new self::Y::•();
        [yield] let dynamic #t2 = asy::_awaitHelper(self::f1(), :async_op_then, :async_op_error) in null;
        #t1.{self::Y::f}(_in::unsafeCast<core::List<core::Object>>(:result_or_exception)){(dynamic) → dynamic};
        :async_temporary_0 = block {
          #t1.{self::Y::f}(self::f2()){(dynamic) → dynamic};
        } =>#t1;
        [yield] let dynamic #t3 = asy::_awaitHelper(self::f3(), :async_op_then, :async_op_error) in null;
        :return_value = new self::X::•(_in::unsafeCast<self::Y>(:async_temporary_0), _in::unsafeCast<core::Object>(:result_or_exception));
        break #L3;
      }
      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() → asy::Future<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 {
      #L4:
      {
        [yield] let dynamic #t4 = asy::_awaitHelper(self::foo(), :async_op_then, :async_op_error) in null;
        core::print(_in::unsafeCast<self::X>(: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;
}