gecko-dev/dom/file/EmptyBlobImpl.cpp

35 строки
1.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "EmptyBlobImpl.h"
#include "nsStringStream.h"
namespace mozilla::dom {
already_AddRefed<BlobImpl> EmptyBlobImpl::CreateSlice(
uint64_t aStart, uint64_t aLength, const nsAString& aContentType,
ErrorResult& aRv) {
MOZ_ASSERT(!aStart && !aLength);
RefPtr<BlobImpl> impl = new EmptyBlobImpl(aContentType);
return impl.forget();
}
void EmptyBlobImpl::CreateInputStream(nsIInputStream** aStream,
ErrorResult& aRv) {
if (NS_WARN_IF(!aStream)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
nsresult rv = NS_NewCStringInputStream(aStream, ""_ns);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
}
} // namespace mozilla::dom