pkg/front_end/testcases/nnbd/return_async.dart.strong.transformed.expect

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

import "dart:async";

static method throwSync() → asy::Future<void> {
  throw "";
}
static method allYield() → asy::Future<void> /* originally async */ {
  final asy::_Future<void> :async_future = new asy::_Future::•<void>();
  core::bool* :is_sync = false;
  FutureOr<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, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L1:
      {
        [yield] let dynamic #t1 = asy::_awaitHelper(0, :async_op_then, :async_op_error, :async_op) in null;
        _in::unsafeCast<core::int>(:result);
        [yield] let dynamic #t2 = asy::_awaitHelper(self::allYield2(), :async_op_then, :async_op_error, :async_op) in null;
        _in::unsafeCast<void>(:result);
      }
      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(){() → dynamic};
  :is_sync = true;
  return :async_future;
}
static method allYield2() → asy::Future<void> /* originally async */ {
  final asy::_Future<void> :async_future = new asy::_Future::•<void>();
  core::bool* :is_sync = false;
  FutureOr<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, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L2:
      {
        [yield] let dynamic #t3 = asy::_awaitHelper(0, :async_op_then, :async_op_error, :async_op) in null;
        _in::unsafeCast<core::int>(:result);
        [yield] let dynamic #t4 = asy::_awaitHelper(self::allYield3(), :async_op_then, :async_op_error, :async_op) in null;
        _in::unsafeCast<void>(:result);
      }
      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(){() → dynamic};
  :is_sync = true;
  return :async_future;
}
static method allYield3() → asy::Future<void> /* originally async */ {
  final asy::_Future<void> :async_future = new asy::_Future::•<void>();
  core::bool* :is_sync = false;
  FutureOr<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, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L3:
      {
        [yield] let dynamic #t5 = asy::_awaitHelper(0, :async_op_then, :async_op_error, :async_op) in null;
        _in::unsafeCast<core::int>(:result);
        self::throwSync();
      }
      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(){() → dynamic};
  :is_sync = true;
  return :async_future;
}
static method customErrorZone() → asy::Future<void> /* originally async */ {
  final asy::_Future<void> :async_future = new asy::_Future::•<void>();
  core::bool* :is_sync = false;
  FutureOr<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;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L4:
      {
        final asy::Completer<void> completer = asy::Completer::•<void>();
        asy::runZonedGuarded<asy::Future<Null>>(() → asy::Future<Null> /* originally async */ {
          final asy::_Future<Null> :async_future = new asy::_Future::•<Null>();
          core::bool* :is_sync = false;
          FutureOr<Null>? :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, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
            try {
              #L5:
              {
                [yield] let dynamic #t6 = asy::_awaitHelper(self::allYield(), :async_op_then, :async_op_error, :async_op) in null;
                _in::unsafeCast<void>(:result);
                completer.{asy::Completer::complete}(null){([FutureOr<void>?]) → void};
              }
              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(){() → dynamic};
          :is_sync = true;
          return :async_future;
        }, (core::Object e, core::StackTrace s) → void {
          completer.{asy::Completer::completeError}(e, s){(core::Object, [core::StackTrace?]) → void};
        });
        :return_value = completer.{asy::Completer::future}{asy::Future<void>};
        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(){() → dynamic};
  :is_sync = true;
  return :async_future;
}
static method main() → dynamic {}