/* -*- 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 {

namespace 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);

  DebugOnly<bool> isMutable;

  MOZ_ASSERT(NS_SUCCEEDED(impl->GetMutable(&isMutable)));

  MOZ_ASSERT(!isMutable);

  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, EmptyCString());

  if (NS_WARN_IF(NS_FAILED(rv))) {

    aRv.Throw(rv);

    return;

  }

}

} // namespace dom

} // namespace mozilla