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

import "dart:ffi";

class MyFinalizable extends core::Object implements ffi::Finalizable {
  synthetic constructor •() → self::MyFinalizable
    : super core::Object::•()
    ;
  method use() → asy::Future<core::int> /* futureValueType= core::int */ /* originally async */ {
    final asy::_Future<core::int> :async_future = new asy::_Future::•<core::int>();
    core::bool* :is_sync = false;
    FutureOr<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 {
        #L1:
        {
          :return_value = block {
            final asy::Future<core::int> :expressionValueWrappedFinalizable = self::doSomething();
            _in::reachabilityFence(this);
          } =>:expressionValueWrappedFinalizable;
          break #L1;
        }
        asy::_completeOnAsyncReturn(: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 use2() → asy::Future<core::int> /* futureValueType= 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;
    dynamic :saved_try_context_var0;
    function :async_op(dynamic :result_or_exception, dynamic :stack_trace) → dynamic yielding 
      try {
        #L2:
        {
          [yield] let dynamic #t1 = asy::_awaitHelper( block {
            final asy::Future<core::int> :expressionValueWrappedFinalizable = self::doSomething();
            _in::reachabilityFence(this);
          } =>:expressionValueWrappedFinalizable, :async_op_then, :async_op_error) in null;
          final core::int :expressionValueWrappedFinalizable = _in::unsafeCast<core::int>(:result_or_exception);
          :return_value = block {
            _in::reachabilityFence(this);
          } =>:expressionValueWrappedFinalizable;
          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;
  }
  method use3() → asy::Future<core::int> {
    return block {
      final asy::Future<core::int> :expressionValueWrappedFinalizable = self::doSomething();
      _in::reachabilityFence(this);
    } =>:expressionValueWrappedFinalizable;
  }
}
static method doSomething() → asy::Future<core::int> /* futureValueType= 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 {
      #L3:
      {
        :return_value = 3;
        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 useFinalizableAsync(ffi::Finalizable finalizable) → asy::Future<core::int> /* futureValueType= core::int */ /* originally async */ {
  final asy::_Future<core::int> :async_future = new asy::_Future::•<core::int>();
  core::bool* :is_sync = false;
  FutureOr<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 {
      #L4:
      {
        [yield] let dynamic #t2 = asy::_awaitHelper( block {
          final asy::Future<core::int> :expressionValueWrappedFinalizable = asy::Future::sync<core::int>(() → core::int => 6);
          _in::reachabilityFence(finalizable);
        } =>:expressionValueWrappedFinalizable, :async_op_then, :async_op_error) in null;
        _in::unsafeCast<core::int>(:result_or_exception);
        final self::MyFinalizable finalizable2 = new self::MyFinalizable::•();
        [yield] let dynamic #t3 = asy::_awaitHelper( block {
          final asy::Future<core::int> :expressionValueWrappedFinalizable = asy::Future::sync<core::int>(() → core::int => 5);
          _in::reachabilityFence(finalizable);
          _in::reachabilityFence(finalizable2);
        } =>:expressionValueWrappedFinalizable, :async_op_then, :async_op_error) in null;
        _in::unsafeCast<core::int>(:result_or_exception);
        final self::MyFinalizable finalizable3 = new self::MyFinalizable::•();
        [yield] let dynamic #t4 = asy::_awaitHelper( block {
          final asy::Future<core::int> :expressionValueWrappedFinalizable = asy::Future::sync<core::int>(() → core::int => 4);
          _in::reachabilityFence(finalizable);
          _in::reachabilityFence(finalizable2);
          _in::reachabilityFence(finalizable3);
        } =>:expressionValueWrappedFinalizable, :async_op_then, :async_op_error) in null;
        _in::unsafeCast<core::int>(:result_or_exception);
        :return_value = block {
          final asy::Future<core::int> :expressionValueWrappedFinalizable = self::doSomething();
          _in::reachabilityFence(finalizable);
          _in::reachabilityFence(finalizable2);
          _in::reachabilityFence(finalizable3);
        } =>:expressionValueWrappedFinalizable;
        break #L4;
      }
      asy::_completeOnAsyncReturn(: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() → void /* futureValueType= void */ /* 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 {
      #L5:
      {
        final self::MyFinalizable finalizable = new self::MyFinalizable::•();
        final asy::Future<core::int> asyncResult = self::useFinalizableAsync(finalizable);
        [yield] let dynamic #t5 = asy::_awaitHelper( block {
          final asy::Future<core::int> :expressionValueWrappedFinalizable = asyncResult;
          _in::reachabilityFence(finalizable);
        } =>:expressionValueWrappedFinalizable, :async_op_then, :async_op_error) in null;
        core::print(_in::unsafeCast<core::int>(:result_or_exception));
        _in::reachabilityFence(finalizable);
      }
      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;
}