Revert "Fail synchronously if null is passed as an error to async APIs."
This reverts commit bef363bfb7d6364ddbaabd691c0fdc963cff8cc6.
Reason for revert: Breaks google3 tests, see b/151204525.
Original change's description:
> Fail synchronously if null is passed as an error to async APIs.
>
> The first patchset is Lasse's original changes.
>
> Change-Id: Ic5f24bcfc0ef4e82edee68d61e015b095cb5916e
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/138605
> Reviewed-by: Leaf Petersen <leafp@google.com>
TBR=leafp@google.com,rnystrom@google.com
Change-Id: Ie17c35e9d23c70a7aecd1ef292962154cf6f007d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/138925
Reviewed-by: David Morgan <davidmorgan@google.com>
Commit-Queue: David Morgan <davidmorgan@google.com>
diff --git a/sdk/lib/_http/websocket_impl.dart b/sdk/lib/_http/websocket_impl.dart
index ce015bb..35ee68b 100644
--- a/sdk/lib/_http/websocket_impl.dart
+++ b/sdk/lib/_http/websocket_impl.dart
@@ -115,7 +115,6 @@
}
void addError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
_eventSink.addError(error, stackTrace);
}
@@ -724,7 +723,6 @@
}
void addError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
_eventSink.addError(error, stackTrace);
}
diff --git a/sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart b/sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart
index 6dd9546..ef0a652 100644
--- a/sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart
+++ b/sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart
@@ -419,7 +419,6 @@
}
void addError(Object error, StackTrace stackTrace) {
- ArgumentError.checkNotNull(error, "error");
if (cancellationCompleter != null && !cancellationCompleter.isCompleted) {
// If the stream has been cancelled, complete the cancellation future
// with the error.
diff --git a/sdk/lib/_internal/vm/lib/async_patch.dart b/sdk/lib/_internal/vm/lib/async_patch.dart
index 85de9dc..0192bfe 100644
--- a/sdk/lib/_internal/vm/lib/async_patch.dart
+++ b/sdk/lib/_internal/vm/lib/async_patch.dart
@@ -209,7 +209,6 @@
}
void addError(Object error, StackTrace stackTrace) {
- ArgumentError.checkNotNull(error, "error");
if ((cancellationFuture != null) && cancellationFuture._mayComplete) {
// If the stream has been cancelled, complete the cancellation future
// with the error.
diff --git a/sdk/lib/async/broadcast_stream_controller.dart b/sdk/lib/async/broadcast_stream_controller.dart
index 09ab783..c18a682 100644
--- a/sdk/lib/async/broadcast_stream_controller.dart
+++ b/sdk/lib/async/broadcast_stream_controller.dart
@@ -253,7 +253,7 @@
}
void addError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
+ error = _nonNullError(error);
if (!_mayAddEvent) throw _addEventError();
AsyncError replacement = Zone.current.errorCallback(error, stackTrace);
if (replacement != null) {
@@ -480,7 +480,6 @@
}
void addError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
if (!isClosed && _isFiring) {
_addPendingEvent(new _DelayedError(error, stackTrace));
return;
diff --git a/sdk/lib/async/future.dart b/sdk/lib/async/future.dart
index ac6f2ba..7aeee47 100644
--- a/sdk/lib/async/future.dart
+++ b/sdk/lib/async/future.dart
@@ -266,12 +266,12 @@
* If an error handler isn't added before the future completes, the error
* will be considered unhandled.
*
- * The [error] must not be `null`.
+ * If [error] is `null`, it is replaced by a [NullThrownError].
*
* Use [Completer] to create a future and complete it later.
*/
factory Future.error(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
+ error = _nonNullError(error);
if (!identical(Zone.current, _rootZone)) {
AsyncError replacement = Zone.current.errorCallback(error, stackTrace);
if (replacement != null) {
@@ -874,7 +874,7 @@
* Completing a future with an error indicates that an exception was thrown
* while trying to produce a value.
*
- * The [error] must not be `null`.
+ * If [error] is `null`, it is replaced by a [NullThrownError].
*
* If `error` is a `Future`, the future itself is used as the error value.
* If you want to complete with the result of the future, you can use:
diff --git a/sdk/lib/async/future_impl.dart b/sdk/lib/async/future_impl.dart
index e2b548b..4481da5 100644
--- a/sdk/lib/async/future_impl.dart
+++ b/sdk/lib/async/future_impl.dart
@@ -19,7 +19,7 @@
void complete([FutureOr<T> value]);
void completeError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
+ error = _nonNullError(error);
if (!future._mayComplete) throw new StateError("Future already completed");
AsyncError replacement = Zone.current.errorCallback(error, stackTrace);
if (replacement != null) {
@@ -94,8 +94,8 @@
this.result, _FutureOnValue<S, T> onValue, Function errorCallback)
: callback = onValue,
errorCallback = errorCallback,
- state = ((errorCallback == null) ? stateThen : stateThenOnerror) |
- stateIsAwait;
+ state = ((errorCallback == null) ? stateThen : stateThenOnerror)
+ | stateIsAwait ;
_FutureListener.catchError(this.result, this.errorCallback, this.callback)
: state = (callback == null) ? stateCatcherror : stateCatcherrorTest;
@@ -293,7 +293,8 @@
/// The system created liseners are not registered in the zone,
/// and the listener is marked as being from an `await`.
/// This marker is used in [_continuationFunctions].
- Future<E> _thenAwait<E>(FutureOr<E> f(T value), Function onError) {
+ Future<E> _thenAwait<E>(
+ FutureOr<E> f(T value), Function onError) {
_Future<E> result = new _Future<E>();
_addListener(new _FutureListener<T, E>.thenAwait(result, f, onError));
return result;
@@ -811,5 +812,5 @@
errorHandler,
"onError",
"Error handler must accept one Object or one Object and a StackTrace"
- " as arguments, and return a a valid result");
+ " as arguments, and return a a valid result");
}
diff --git a/sdk/lib/async/stream.dart b/sdk/lib/async/stream.dart
index 794282a..ed95a05 100644
--- a/sdk/lib/async/stream.dart
+++ b/sdk/lib/async/stream.dart
@@ -132,7 +132,6 @@
*
* This stream emits a single error event of [error] and [stackTrace]
* and then completes with a done event.
- * The [error] must not be `null`.
*
* Example:
* ```dart
@@ -153,13 +152,11 @@
* stack trace as well.
*/
@Since("2.5")
- factory Stream.error(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
- return (_AsyncStreamController<T>(null, null, null, null)
- .._addError(error, stackTrace)
- .._closeUnchecked())
- .stream;
- }
+ factory Stream.error(Object error, [StackTrace stackTrace]) =>
+ (_AsyncStreamController<T>(null, null, null, null)
+ .._addError(error, stackTrace)
+ .._closeUnchecked())
+ .stream;
/**
* Creates a new single-subscription stream from the future.
@@ -1814,8 +1811,6 @@
/**
* Adds an [error] to the sink.
*
- * The [error] must not be `null`.
- *
* Must not be called on a closed sink.
*/
void addError(Object error, [StackTrace stackTrace]);
diff --git a/sdk/lib/async/stream_controller.dart b/sdk/lib/async/stream_controller.dart
index b54ddac..50e9aa3 100644
--- a/sdk/lib/async/stream_controller.dart
+++ b/sdk/lib/async/stream_controller.dart
@@ -237,7 +237,7 @@
/**
* Sends or enqueues an error event.
*
- * The [error] must not be `null`.
+ * If [error] is `null`, it is replaced by a [NullThrownError].
*
* Listeners receive this event at a later microtask. This behavior can be
* overridden by using `sync` controllers. Note, however, that sync
@@ -361,8 +361,6 @@
/**
* Adds error to the controller's stream.
*
- * The [error] must not be `null`.
- *
* As [StreamController.addError], but must not be called while an event is
* being added by [add], [addError] or [close].
*/
@@ -599,11 +597,8 @@
/**
* Send or enqueue an error event.
- *
- * The [error] must not be `null`.
*/
void addError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
if (!_mayAddEvent) throw _badEventState();
error = _nonNullError(error);
AsyncError replacement = Zone.current.errorCallback(error, stackTrace);
diff --git a/sdk/lib/async/stream_transformers.dart b/sdk/lib/async/stream_transformers.dart
index 41c963f..7cba3ba 100644
--- a/sdk/lib/async/stream_transformers.dart
+++ b/sdk/lib/async/stream_transformers.dart
@@ -234,7 +234,6 @@
}
void addError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
if (_isClosed) {
throw StateError("Sink is closed");
}
diff --git a/sdk/lib/async/zone.dart b/sdk/lib/async/zone.dart
index 83c0a80..d8f8596 100644
--- a/sdk/lib/async/zone.dart
+++ b/sdk/lib/async/zone.dart
@@ -43,9 +43,7 @@
final Object error;
final StackTrace stackTrace;
- AsyncError(this.error, this.stackTrace) {
- ArgumentError.checkNotNull(error, "error");
- }
+ AsyncError(this.error, this.stackTrace);
String toString() => '$error';
}
@@ -752,7 +750,6 @@
}
AsyncError errorCallback(Zone zone, Object error, StackTrace stackTrace) {
- ArgumentError.checkNotNull(error, "error");
var implementation = _delegationTarget._errorCallback;
_Zone implZone = implementation.zone;
if (identical(implZone, _rootZone)) return null;
@@ -1068,7 +1065,6 @@
}
AsyncError errorCallback(Object error, StackTrace stackTrace) {
- ArgumentError.checkNotNull(error, "error");
var implementation = this._errorCallback;
assert(implementation != null);
final Zone implementationZone = implementation.zone;
@@ -1113,11 +1109,8 @@
void _rootHandleUncaughtError(
Zone self, ZoneDelegate parent, Zone zone, error, StackTrace stackTrace) {
- if (error == null) {
- error = ArgumentError.notNull("error");
- stackTrace = StackTrace.current;
- }
_schedulePriorityAsyncCallback(() {
+ error ??= new NullThrownError();
if (stackTrace == null) throw error;
_rethrow(error, stackTrace);
});
diff --git a/sdk/lib/convert/chunked_conversion.dart b/sdk/lib/convert/chunked_conversion.dart
index 3b67c3a..7253981 100644
--- a/sdk/lib/convert/chunked_conversion.dart
+++ b/sdk/lib/convert/chunked_conversion.dart
@@ -75,7 +75,6 @@
}
void addError(Object error, [StackTrace stackTrace]) {
- ArgumentError.checkNotNull(error, "error");
_eventSink.addError(error, stackTrace);
}
diff --git a/sdk_nnbd/lib/_http/websocket_impl.dart b/sdk_nnbd/lib/_http/websocket_impl.dart
index 64eb1eb..4afba79 100644
--- a/sdk_nnbd/lib/_http/websocket_impl.dart
+++ b/sdk_nnbd/lib/_http/websocket_impl.dart
@@ -113,8 +113,6 @@
}
void addError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
_eventSink!.addError(error, stackTrace);
}
@@ -724,8 +722,6 @@
}
void addError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
_eventSink!.addError(error, stackTrace);
}
@@ -1220,7 +1216,6 @@
}
void addUtf8Text(List<int> bytes) {
- // TODO(40614): Remove once non-nullability is sound.
ArgumentError.checkNotNull(bytes, "bytes");
_sink.add(new _EncodedString(bytes));
}
diff --git a/sdk_nnbd/lib/_internal/js_dev_runtime/patch/async_patch.dart b/sdk_nnbd/lib/_internal/js_dev_runtime/patch/async_patch.dart
index dbba91e..78ba91b 100644
--- a/sdk_nnbd/lib/_internal/js_dev_runtime/patch/async_patch.dart
+++ b/sdk_nnbd/lib/_internal/js_dev_runtime/patch/async_patch.dart
@@ -417,7 +417,6 @@
}
void addError(Object error, StackTrace stackTrace) {
- ArgumentError.checkNotNull(error, "error");
var completer = cancellationCompleter;
if (completer != null && !completer.isCompleted) {
// If the stream has been cancelled, complete the cancellation future
diff --git a/sdk_nnbd/lib/_internal/vm/lib/async_patch.dart b/sdk_nnbd/lib/_internal/vm/lib/async_patch.dart
index 9e180a2..b2b57d7 100644
--- a/sdk_nnbd/lib/_internal/vm/lib/async_patch.dart
+++ b/sdk_nnbd/lib/_internal/vm/lib/async_patch.dart
@@ -214,8 +214,6 @@
}
void addError(Object error, StackTrace stackTrace) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
final future = cancellationFuture;
if ((future != null) && future._mayComplete) {
// If the stream has been cancelled, complete the cancellation future
diff --git a/sdk_nnbd/lib/async/broadcast_stream_controller.dart b/sdk_nnbd/lib/async/broadcast_stream_controller.dart
index 9a80aab..ec0bae3 100644
--- a/sdk_nnbd/lib/async/broadcast_stream_controller.dart
+++ b/sdk_nnbd/lib/async/broadcast_stream_controller.dart
@@ -248,8 +248,6 @@
}
void addError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
if (!_mayAddEvent) throw _addEventError();
AsyncError? replacement = Zone.current.errorCallback(error, stackTrace);
if (replacement != null) {
@@ -478,8 +476,6 @@
}
void addError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
if (!isClosed && _isFiring) {
_addPendingEvent(new _DelayedError(error, stackTrace));
return;
diff --git a/sdk_nnbd/lib/async/future.dart b/sdk_nnbd/lib/async/future.dart
index 79e9ee6..a489a6a 100644
--- a/sdk_nnbd/lib/async/future.dart
+++ b/sdk_nnbd/lib/async/future.dart
@@ -269,11 +269,11 @@
* If an error handler isn't added before the future completes, the error
* will be considered unhandled.
*
+ * If [error] is `null`, it is replaced by a [NullThrownError].
+ *
* Use [Completer] to create a future and complete it later.
*/
factory Future.error(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
if (!identical(Zone.current, _rootZone)) {
AsyncError? replacement = Zone.current.errorCallback(error, stackTrace);
if (replacement != null) {
diff --git a/sdk_nnbd/lib/async/future_impl.dart b/sdk_nnbd/lib/async/future_impl.dart
index e469175..c012e53 100644
--- a/sdk_nnbd/lib/async/future_impl.dart
+++ b/sdk_nnbd/lib/async/future_impl.dart
@@ -17,8 +17,6 @@
void complete([FutureOr<T>? value]);
void completeError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
if (!future._mayComplete) throw new StateError("Future already completed");
AsyncError? replacement = Zone.current.errorCallback(error, stackTrace);
if (replacement != null) {
diff --git a/sdk_nnbd/lib/async/stream.dart b/sdk_nnbd/lib/async/stream.dart
index c83b77b..3969f20 100644
--- a/sdk_nnbd/lib/async/stream.dart
+++ b/sdk_nnbd/lib/async/stream.dart
@@ -150,14 +150,11 @@
* stack trace as well.
*/
@Since("2.5")
- factory Stream.error(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
- return (_AsyncStreamController<T>(null, null, null, null)
- .._addError(error, stackTrace)
- .._closeUnchecked())
- .stream;
- }
+ factory Stream.error(Object error, [StackTrace? stackTrace]) =>
+ (_AsyncStreamController<T>(null, null, null, null)
+ .._addError(error, stackTrace)
+ .._closeUnchecked())
+ .stream;
/**
* Creates a new single-subscription stream from the future.
diff --git a/sdk_nnbd/lib/async/stream_controller.dart b/sdk_nnbd/lib/async/stream_controller.dart
index 3f3f461..31fc5c3 100644
--- a/sdk_nnbd/lib/async/stream_controller.dart
+++ b/sdk_nnbd/lib/async/stream_controller.dart
@@ -600,8 +600,6 @@
* Send or enqueue an error event.
*/
void addError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
if (!_mayAddEvent) throw _badEventState();
AsyncError? replacement = Zone.current.errorCallback(error, stackTrace);
if (replacement != null) {
diff --git a/sdk_nnbd/lib/async/stream_transformers.dart b/sdk_nnbd/lib/async/stream_transformers.dart
index b445d66..3e332b4 100644
--- a/sdk_nnbd/lib/async/stream_transformers.dart
+++ b/sdk_nnbd/lib/async/stream_transformers.dart
@@ -229,8 +229,6 @@
}
void addError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
var sink = _sink;
if (sink == null) {
throw StateError("Sink is closed");
diff --git a/sdk_nnbd/lib/async/zone.dart b/sdk_nnbd/lib/async/zone.dart
index 2fc47b8..31644f2 100644
--- a/sdk_nnbd/lib/async/zone.dart
+++ b/sdk_nnbd/lib/async/zone.dart
@@ -41,10 +41,7 @@
final Object error;
final StackTrace? stackTrace;
- AsyncError(this.error, this.stackTrace) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
- }
+ AsyncError(this.error, this.stackTrace);
String toString() => '$error';
}
@@ -745,8 +742,6 @@
}
AsyncError? errorCallback(Zone zone, Object error, StackTrace? stackTrace) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
var implementation = _delegationTarget._errorCallback;
_Zone implZone = implementation.zone;
if (identical(implZone, _rootZone)) return null;
@@ -1080,8 +1075,6 @@
}
AsyncError? errorCallback(Object error, StackTrace? stackTrace) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
var implementation = this._errorCallback;
final _Zone implementationZone = implementation.zone;
if (identical(implementationZone, _rootZone)) return null;
diff --git a/sdk_nnbd/lib/convert/chunked_conversion.dart b/sdk_nnbd/lib/convert/chunked_conversion.dart
index d2c24f0..654c9d2 100644
--- a/sdk_nnbd/lib/convert/chunked_conversion.dart
+++ b/sdk_nnbd/lib/convert/chunked_conversion.dart
@@ -73,8 +73,6 @@
}
void addError(Object error, [StackTrace? stackTrace]) {
- // TODO(40614): Remove once non-nullability is sound.
- ArgumentError.checkNotNull(error, "error");
_eventSink.addError(error, stackTrace);
}
diff --git a/tests/lib_2/async/future_error_test.dart b/tests/lib_2/async/future_error_test.dart
deleted file mode 100644
index 3ef0eb3..0000000
--- a/tests/lib_2/async/future_error_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-main() {
- // The error cannot be null.
- Expect.throwsArgumentError(() {
- Future.error(null);
- });
-}
diff --git a/tests/lib_2/async/future_test.dart b/tests/lib_2/async/future_test.dart
index 3a4f09d..9223646 100644
--- a/tests/lib_2/async/future_test.dart
+++ b/tests/lib_2/async/future_test.dart
@@ -697,10 +697,13 @@
}
void testCompleteErrorWithNull() {
+ asyncStart();
final completer = new Completer<int>();
- Expect.throwsArgumentError(() {
- completer.completeError(null);
+ completer.future.catchError((e) {
+ Expect.isTrue(e is NullThrownError);
+ asyncEnd();
});
+ completer.completeError(null);
}
void testChainedFutureValue() {
diff --git a/tests/lib_2/async/stream_controller_add_error_test.dart b/tests/lib_2/async/stream_controller_add_error_test.dart
deleted file mode 100644
index aed39e8..0000000
--- a/tests/lib_2/async/stream_controller_add_error_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-main() {
- // Single-cast async.
- var controller = StreamController();
- Expect.throwsArgumentError(() {
- controller.addError(null);
- });
-
- Expect.throwsArgumentError(() {
- controller.sink.addError(null);
- });
-
- // Single-cast sync.
- controller = StreamController(sync: true);
- Expect.throwsArgumentError(() {
- controller.addError(null);
- });
-
- Expect.throwsArgumentError(() {
- controller.sink.addError(null);
- });
-
- // Broadcast async.
- controller = StreamController.broadcast();
- Expect.throwsArgumentError(() {
- controller.addError(null);
- });
-
- Expect.throwsArgumentError(() {
- controller.sink.addError(null);
- });
-
- // Broadcast sync.
- controller = StreamController.broadcast(sync: true);
- Expect.throwsArgumentError(() {
- controller.addError(null);
- });
-
- Expect.throwsArgumentError(() {
- controller.sink.addError(null);
- });
-}
diff --git a/tests/lib_2/async/stream_error_test.dart b/tests/lib_2/async/stream_error_test.dart
index 22b091b..11f6a93 100644
--- a/tests/lib_2/async/stream_error_test.dart
+++ b/tests/lib_2/async/stream_error_test.dart
@@ -72,11 +72,6 @@
await onDone.future;
}
- // A null error argument is a synchronous error.
- Expect.throwsArgumentError(() {
- Stream.error(null);
- });
-
asyncEnd();
}
diff --git a/tests/lib_2/async/zone_async_error_test.dart b/tests/lib_2/async/zone_async_error_test.dart
deleted file mode 100644
index b1f67ce..0000000
--- a/tests/lib_2/async/zone_async_error_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-main() {
- // The error cannot be null.
- Expect.throwsArgumentError(() {
- AsyncError(null, StackTrace.current);
- });
-}
