chromium/components/web_package/input_reader.h

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

#ifndef COMPONENTS_WEB_PACKAGE_INPUT_READER_H_
#define COMPONENTS_WEB_PACKAGE_INPUT_READER_H_

#include <optional>
#include <string_view>

#include "base/containers/span.h"
#include "base/containers/span_reader.h"
#include "base/memory/stack_allocated.h"
#include "base/types/id_type.h"
#include "third_party/abseil-cpp/absl/types/variant.h"

namespace web_package {

// https://datatracker.ietf.org/doc/html/rfc8949.html#section-3.1
enum class CBORType { … };

struct CBORHeader { … };

// The maximum length of the CBOR item header (type and argument).
// https://datatracker.ietf.org/doc/html/rfc8949.html#section-3
// When the additional information (the low-order 5 bits of the first
// byte) is 27, the argument's value is held in the following 8 bytes.
constexpr uint64_t kMaxCBORItemHeaderSize = …;

// A utility class for reading various values from input buffer.
class InputReader { … };

}  // namespace web_package

#endif  // COMPONENTS_WEB_PACKAGE_INPUT_READER_H_