// Copyright 2022 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "core/fxcrt/cfx_read_only_vector_stream.h"

#include <utility>

#include "core/fxcrt/cfx_read_only_span_stream.h"
#include "third_party/base/containers/span.h"

CFX_ReadOnlyVectorStream::CFX_ReadOnlyVectorStream(DataVector<uint8_t> data)
    : data_(std::move(data)),
      stream_(pdfium::MakeRetain<CFX_ReadOnlySpanStream>(data_)) {}

CFX_ReadOnlyVectorStream::CFX_ReadOnlyVectorStream(
    FixedUninitDataVector<uint8_t> data)
    : fixed_data_(std::move(data)),
      stream_(pdfium::MakeRetain<CFX_ReadOnlySpanStream>(fixed_data_)) {}

CFX_ReadOnlyVectorStream::~CFX_ReadOnlyVectorStream() = default;

FX_FILESIZE CFX_ReadOnlyVectorStream::GetSize() {
  return stream_->GetSize();
}

bool CFX_ReadOnlyVectorStream::ReadBlockAtOffset(pdfium::span<uint8_t> buffer,
                                                 FX_FILESIZE offset) {
  return stream_->ReadBlockAtOffset(buffer, offset);
}