binpack_decoder.h

#ifndef SOURCEMETA_BLAZE_BINPACK_DECODER_H_
#define SOURCEMETA_BLAZE_BINPACK_DECODER_H_
 
#ifndef SOURCEMETA_BLAZE_BINPACK_EXPORT
#include <sourcemeta/blaze/binpack_export.h>
#endif
 
#include <sourcemeta/blaze/binpack_encoding.h>
 
#include <sourcemeta/core/io.h>
#include <sourcemeta/core/json.h>
 
#include <istream> // std::basic_istream
 
namespace sourcemeta::blaze {

class SOURCEMETA_BLAZE_BINPACK_EXPORT BinPackDecoder
    : private sourcemeta::core::BinaryReader {
public:
  using Stream = std::basic_istream<sourcemeta::core::JSON::Char,
                                    sourcemeta::core::JSON::CharTraits>;
  BinPackDecoder(Stream &input);
  auto read(const BinPackEncoding &encoding) -> sourcemeta::core::JSON;
 
// The methods that implement individual encodings as considered private
#ifndef DOXYGEN
// The encoding names are the ones the JSON BinPack specification defines, so
// they keep their casing rather than following the C++ naming convention
// NOLINTBEGIN(readability-identifier-naming)
#define DECLARE_ENCODING(name)                                                 \
  auto name(const name &) -> sourcemeta::core::JSON;
 
  // Integer
  DECLARE_ENCODING(BOUNDED_MULTIPLE_8BITS_ENUM_FIXED)
  DECLARE_ENCODING(FLOOR_MULTIPLE_ENUM_VARINT)
  DECLARE_ENCODING(ROOF_MULTIPLE_MIRROR_ENUM_VARINT)
  DECLARE_ENCODING(ARBITRARY_MULTIPLE_ZIGZAG_VARINT)
 
  // Number
  DECLARE_ENCODING(DOUBLE_VARINT_TUPLE)
  DECLARE_ENCODING(NUMBER_VARINT_TUPLE)
 
  // Any
  DECLARE_ENCODING(BYTE_CHOICE_INDEX)
  DECLARE_ENCODING(LARGE_CHOICE_INDEX)
  DECLARE_ENCODING(TOP_LEVEL_BYTE_CHOICE_INDEX)
  DECLARE_ENCODING(CONST_NONE)
  DECLARE_ENCODING(ANY_PACKED_TYPE_TAG_BYTE_PREFIX)
 
  // String
  DECLARE_ENCODING(UTF8_STRING_NO_LENGTH)
  DECLARE_ENCODING(FLOOR_VARINT_PREFIX_UTF8_STRING_SHARED)
  DECLARE_ENCODING(ROOF_VARINT_PREFIX_UTF8_STRING_SHARED)
  DECLARE_ENCODING(BOUNDED_8BIT_PREFIX_UTF8_STRING_SHARED)
  DECLARE_ENCODING(RFC3339_DATE_INTEGER_TRIPLET)
  DECLARE_ENCODING(PREFIX_VARINT_LENGTH_STRING_SHARED)
  // TODO: Implement STRING_BROTLI encoding
  // TODO: Implement STRING_DICTIONARY_COMPRESSOR encoding
  // TODO: Implement STRING_UNBOUNDED_SCOPED_PREFIX_LENGTH encoding
  // TODO: Implement URL_PROTOCOL_HOST_REST encoding
 
  // Array
  DECLARE_ENCODING(FIXED_TYPED_ARRAY)
  DECLARE_ENCODING(BOUNDED_8BITS_TYPED_ARRAY)
  DECLARE_ENCODING(FLOOR_TYPED_ARRAY)
  DECLARE_ENCODING(ROOF_TYPED_ARRAY)
 
  // Object
  DECLARE_ENCODING(FIXED_TYPED_ARBITRARY_OBJECT)
  DECLARE_ENCODING(VARINT_TYPED_ARBITRARY_OBJECT)
 
#undef DECLARE_ENCODING
// NOLINTEND(readability-identifier-naming)
#endif
};
 
} // namespace sourcemeta::blaze
 
#endif