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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_ReadableStreamGenericReader_h
+#define mozilla_dom_ReadableStreamGenericReader_h
+
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/ReadableStreamDefaultReaderBinding.h"
+#include "nsISupports.h"
+#include "nsCycleCollectionParticipant.h"
+
+namespace mozilla::dom {
+
+class ReadableStream;
+class ReadableStreamDefaultReader;
+class ReadableStreamBYOBReader;
+
+// Base class for internal slots of readable stream readers
+class ReadableStreamGenericReader : public nsISupports {
+ public:
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ReadableStreamGenericReader)
+
+ explicit ReadableStreamGenericReader(nsCOMPtr<nsIGlobalObject> aGlobal)
+ : mGlobal(std::move(aGlobal)) {}
+
+ nsIGlobalObject* GetParentObject() const { return mGlobal; }
+
+ virtual bool IsDefault() = 0;
+ virtual bool IsBYOB() = 0;
+ virtual ReadableStreamDefaultReader* AsDefault() = 0;
+ virtual ReadableStreamBYOBReader* AsBYOB() = 0;
+
+ Promise* ClosedPromise() { return mClosedPromise; }
+ void SetClosedPromise(already_AddRefed<Promise>&& aClosedPromise) {
+ mClosedPromise = aClosedPromise;
+ }
+
+ ReadableStream* GetStream() { return mStream; }
+ void SetStream(already_AddRefed<ReadableStream>&& aStream) {
+ mStream = aStream;
+ }
+ void SetStream(ReadableStream* aStream) {
+ RefPtr<ReadableStream> stream(aStream);
+ SetStream(stream.forget());
+ }
+
+ // IDL Methods
+ already_AddRefed<Promise> Closed() const;
+
+ MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Cancel(
+ JSContext* aCx, JS::Handle<JS::Value> aReason, ErrorResult& aRv);
+
+ protected:
+ virtual ~ReadableStreamGenericReader() = default;
+
+ nsCOMPtr<nsIGlobalObject> mGlobal;
+ RefPtr<Promise> mClosedPromise;
+ RefPtr<ReadableStream> mStream;
+};
+
+namespace streams_abstract {
+
+bool ReadableStreamReaderGenericInitialize(ReadableStreamGenericReader* aReader,
+ ReadableStream* aStream);
+
+void ReadableStreamReaderGenericRelease(ReadableStreamGenericReader* aReader,
+ ErrorResult& aRv);
+
+} // namespace streams_abstract
+
+} // namespace mozilla::dom
+
+#endif