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 C extends core::Object {
  synthetic constructor •() → self::C
    : super core::Object::•()
    ;
  method m() → asy::Future<core::List<core::int>> /* originally async */ {
    final asy::_Future<core::List<core::int>> :async_future = new asy::_Future::•<core::List<core::int>>();
    core::bool* :is_sync = false;
    core::List<core::int>? :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:
        {
          final core::List<core::int> #t1 = core::_GrowableList::•<core::int>(0);
          [yield] let dynamic #t2 = asy::_awaitHelper(this.{self::C::_m}(){() → asy::Future<core::int>}, :async_op_then, :async_op_error) in null;
          #t1.{core::List::add}(_in::unsafeCast<core::int>(:result_or_exception)){(core::int) → void};
          :return_value = block {} =>#t1;
          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;
  }
  method _m() → asy::Future<core::int> /* originally async */ {
    final asy::_Future<core::int> :async_future = new asy::_Future::•<core::int>();
    core::bool* :is_sync = false;
    core::int? :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 = 42;
          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 main() → 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;
  function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding 
    try {
      #L3:
      {
        [yield] let dynamic #t3 = asy::_awaitHelper(new self::C::•().{self::C::m}(){() → asy::Future<core::List<core::int>>}, :async_op_then, :async_op_error) in null;
        self::expect(42, _in::unsafeCast<core::List<core::int>>(:result_or_exception).{core::Iterable::first}{core::int});
      }
      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 expect(dynamic expected, dynamic actual) → dynamic {
  if(!(expected =={core::Object::==}{(core::Object) → core::bool} actual))
    throw "Expected ${expected}, actual ${actual}";
}