// Example of X-macros for automatic serialization in C.  See file
// `binary-serialization.md` in pavnotes2, binmsg_cpp.c, and
// binmsg.py.

typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
typedef struct { } *stream;     // dummy definition to make output compilable

#define MESSAGE_TYPE(type)                                       \
  DECLARE_STRUCT(type)                                           \
  STRUCT_READER(type)                                            \
  STRUCT_WRITER(type)

#define DECLARE_STRUCT(type)                                     \
  typedef struct type {                                          \
    type##_fields(STRUCT_FIELD, IGNORE)                          \
  } type;
#define IGNORE(type)
#define STRUCT_FIELD(type, name) type name;

#define STRUCT_READER(type)                                      \
  bool read_##type##_big_endian(stream out, type *obj) {         \
    type##_fields(READ_FIELD_BIG_ENDIAN, READ_PADDING)           \
    return true;                                                 \
  }
#define READ_FIELD_BIG_ENDIAN(type, name)                        \
  if (!read_##type##_big_endian(out, &obj->name)) return false;
#define READ_PADDING(type)                                       \
  if (!read_dummy_##type(out)) return false;

#define STRUCT_WRITER(type)                                      \
  bool write_##type##_big_endian(stream out, type *obj) {        \
    type##_fields(WRITE_FIELD_BIG_ENDIAN, WRITE_PADDING)         \
    return true;                                                 \
  }
#define WRITE_FIELD_BIG_ENDIAN(type, name)                       \
  if (!write_##type##_big_endian(out, &obj->name)) return false;
#define WRITE_PADDING(type) \
  if (!write_dummy_##type(out)) return false;

bool read_u8_big_endian(stream out, u8 *obj);
bool read_dummy_u8(stream out);
bool read_u32_big_endian(stream out, u32 *obj);

bool write_u8_big_endian(stream out, u8 *obj);
bool write_dummy_u8(stream out);
bool write_u32_big_endian(stream out, u32 *obj);