gecko-dev/dom/streams/ReadableStreamBYOBReader.h

92 строки
2.9 KiB
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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_ReadableStreamBYOBReader_h
#define mozilla_dom_ReadableStreamBYOBReader_h
#include "js/TypeDecls.h"
#include "mozilla/Attributes.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/ReadableStreamGenericReader.h"
#include "mozilla/dom/TypedArray.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"
#include "mozilla/LinkedList.h"
namespace mozilla::dom {
class Promise;
struct ReadIntoRequest;
class ReadableStream;
} // namespace mozilla::dom
namespace mozilla::dom {
class ReadableStreamBYOBReader final : public ReadableStreamGenericReader,
public nsWrapperCache {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS_INHERITED(
ReadableStreamBYOBReader, ReadableStreamGenericReader)
public:
explicit ReadableStreamBYOBReader(nsISupports* aGlobal);
bool IsDefault() override { return false; };
bool IsBYOB() override { return true; }
ReadableStreamDefaultReader* AsDefault() override {
MOZ_CRASH("Should have verified IsDefault first");
return nullptr;
}
ReadableStreamBYOBReader* AsBYOB() override { return this; }
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<ReadableStreamBYOBReader> Constructor(
const GlobalObject& global, ReadableStream& stream, ErrorResult& rv);
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Read(
const ArrayBufferView& aArray, ErrorResult& rv);
void ReleaseLock(ErrorResult& rv);
LinkedList<RefPtr<ReadIntoRequest>>& ReadIntoRequests() {
return mReadIntoRequests;
}
private:
~ReadableStreamBYOBReader() override = default;
LinkedList<RefPtr<ReadIntoRequest>> mReadIntoRequests;
};
namespace streams_abstract {
already_AddRefed<ReadableStreamBYOBReader> AcquireReadableStreamBYOBReader(
ReadableStream* aStream, ErrorResult& aRv);
MOZ_CAN_RUN_SCRIPT void ReadableStreamBYOBReaderRead(
JSContext* aCx, ReadableStreamBYOBReader* aReader,
JS::Handle<JSObject*> aView, ReadIntoRequest* aReadIntoRequest,
ErrorResult& aRv);
void ReadableStreamBYOBReaderErrorReadIntoRequests(
JSContext* aCx, ReadableStreamBYOBReader* aReader,
JS::Handle<JS::Value> aError, ErrorResult& aRv);
void ReadableStreamBYOBReaderRelease(JSContext* aCx,
ReadableStreamBYOBReader* aReader,
ErrorResult& aRv);
} // namespace streams_abstract
} // namespace mozilla::dom
#endif // mozilla_dom_ReadableStreamBYOBReader_h