1 files changed, 112 insertions, 0 deletions
diff --git a/dom/streams/WritableStreamDefaultWriter.h b/dom/streams/WritableStreamDefaultWriter.h
new file mode 100644
index 0000000000..487a504cd1
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+++ b/dom/streams/WritableStreamDefaultWriter.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_WritableStreamDefaultWriter_h
+#define mozilla_dom_WritableStreamDefaultWriter_h
+
+#include "js/TypeDecls.h"
+#include "js/Value.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/QueuingStrategyBinding.h"
+
+#include "nsCycleCollectionParticipant.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla::dom {
+
+class Promise;
+class WritableStream;
+
+class WritableStreamDefaultWriter final : public nsISupports,
+                                          public nsWrapperCache {
+ public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(WritableStreamDefaultWriter)
+
+ protected:
+  ~WritableStreamDefaultWriter();
+
+ public:
+  explicit WritableStreamDefaultWriter(nsIGlobalObject* aGlobal);
+
+  // Slot Getter/Setters:
+ public:
+  WritableStream* GetStream() const { return mStream; }
+  void SetStream(WritableStream* aStream) { mStream = aStream; }
+
+  Promise* ReadyPromise() const { return mReadyPromise; }
+  void SetReadyPromise(Promise* aPromise);
+
+  Promise* ClosedPromise() const { return mClosedPromise; }
+  void SetClosedPromise(Promise* aPromise);
+
+ public:
+  nsIGlobalObject* GetParentObject() const { return mGlobal; }
+
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;
+
+  // IDL Methods
+  static already_AddRefed<WritableStreamDefaultWriter> Constructor(
+      const GlobalObject& aGlobal, WritableStream& aStream, ErrorResult& aRv);
+
+  already_AddRefed<Promise> Closed();
+  already_AddRefed<Promise> Ready();
+
+  Nullable<double> GetDesiredSize(ErrorResult& aRv);
+
+  MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Abort(
+      JSContext* aCx, JS::Handle<JS::Value> aReason, ErrorResult& aRv);
+
+  MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Close(JSContext* aCx,
+                                                     ErrorResult& aRv);
+
+  void ReleaseLock(JSContext* aCx);
+
+  MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Write(
+      JSContext* aCx, JS::Handle<JS::Value> aChunk, ErrorResult& aRv);
+
+  // Internal Slots:
+ private:
+  nsCOMPtr<nsIGlobalObject> mGlobal;
+  RefPtr<WritableStream> mStream;
+  RefPtr<Promise> mReadyPromise;
+  RefPtr<Promise> mClosedPromise;
+};
+
+namespace streams_abstract {
+
+void SetUpWritableStreamDefaultWriter(WritableStreamDefaultWriter* aWriter,
+                                      WritableStream* aStream,
+                                      ErrorResult& aRv);
+
+void WritableStreamDefaultWriterEnsureClosedPromiseRejected(
+    WritableStreamDefaultWriter* aWriter, JS::Handle<JS::Value> aError);
+
+void WritableStreamDefaultWriterEnsureReadyPromiseRejected(
+    WritableStreamDefaultWriter* aWriter, JS::Handle<JS::Value> aError);
+
+Nullable<double> WritableStreamDefaultWriterGetDesiredSize(
+    WritableStreamDefaultWriter* aWriter);
+
+void WritableStreamDefaultWriterRelease(JSContext* aCx,
+                                        WritableStreamDefaultWriter* aWriter);
+
+MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> WritableStreamDefaultWriterWrite(
+    JSContext* aCx, WritableStreamDefaultWriter* aWriter,
+    JS::Handle<JS::Value> aChunk, ErrorResult& aRv);
+
+MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise>
+WritableStreamDefaultWriterCloseWithErrorPropagation(
+    JSContext* aCx, WritableStreamDefaultWriter* aWriter, ErrorResult& aRv);
+
+}  // namespace streams_abstract
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_WritableStreamDefaultWriter_h