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Unified Diff: lib/src/result/release_sink.dart

Issue 1777453002: Modernize the package's style. (Closed) Base URL: git@github.com:dart-lang/async.git@master
Patch Set: Created 4 years, 9 months ago
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Index: lib/src/result/release_sink.dart
diff --git a/lib/src/result/release_sink.dart b/lib/src/result/release_sink.dart
new file mode 100644
index 0000000000000000000000000000000000000000..114981b66a3e77866208a470e15b6dbfa603b811
--- /dev/null
+++ b/lib/src/result/release_sink.dart
@@ -0,0 +1,34 @@
+// Copyright (c) 2016, 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 '../result.dart';
+
+/// Use [Result.captureSinkTransformer].
+@Deprecated("Will be removed in async 2.0.0.")
+class ReleaseSink<T> implements EventSink<Result<T>> {
+ final EventSink _sink;
+
+ ReleaseSink(EventSink<T> sink) : _sink = sink;
+
+ void add(Result<T> result) {
+ if (result.isValue) {
+ _sink.add(result.asValue.value);
+ } else {
+ var error = result.asError;
+ _sink.addError(error.error, error.stackTrace);
+ }
+ }
+
+ void addError(Object error, [StackTrace stackTrace]) {
+ // Errors may be added by intermediate processing, even if it is never
+ // added by CaptureSink.
+ _sink.addError(error, stackTrace);
+ }
+
+ void close() {
+ _sink.close();
+ }
+}

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