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#ifndef MPACK_OBJECT_H
#define MPACK_OBJECT_H
#include "mpack_core.h"
#include "conv.h"
#ifndef MPACK_MAX_OBJECT_DEPTH
# define MPACK_MAX_OBJECT_DEPTH 32
#endif
#define MPACK_PARENT_NODE(n) (((n) - 1)->pos == (size_t)-1 ? NULL : (n) - 1)
#define MPACK_THROW(parser) \
do { \
parser->status = MPACK_EXCEPTION; \
return; \
} while (0)
enum {
MPACK_EXCEPTION = -1,
MPACK_NOMEM = MPACK_ERROR + 1
};
/* Storing integer in pointers in undefined behavior according to the C
* standard. Define a union type to accommodate arbitrary user data associated
* with nodes(and with requests in rpc.h). */
typedef union {
void *p;
mpack_uintmax_t u;
mpack_sintmax_t i;
double d;
} mpack_data_t;
typedef struct mpack_node_s {
mpack_token_t tok;
size_t pos;
/* flag to determine if the key was visited when traversing a map */
int key_visited;
/* allow 2 instances mpack_data_t per node. the reason is that when
* serializing, the user may need to keep track of traversal state besides the
* parent node reference */
mpack_data_t data[2];
} mpack_node_t;
#define MPACK_PARSER_STRUCT(c) \
struct { \
mpack_data_t data; \
mpack_uint32_t size, capacity; \
int status; \
int exiting; \
mpack_tokbuf_t tokbuf; \
mpack_node_t items[c + 1]; \
}
/* Some compilers warn against anonymous structs:
* https://github.com/libmpack/libmpack/issues/6 */
typedef MPACK_PARSER_STRUCT(0) mpack_one_parser_t;
#define MPACK_PARSER_STRUCT_SIZE(c) \
(sizeof(mpack_node_t) * c + \
sizeof(mpack_one_parser_t))
typedef MPACK_PARSER_STRUCT(MPACK_MAX_OBJECT_DEPTH) mpack_parser_t;
typedef void(*mpack_walk_cb)(mpack_parser_t *w, mpack_node_t *n);
MPACK_API void mpack_parser_init(mpack_parser_t *p, mpack_uint32_t c)
FUNUSED FNONULL;
MPACK_API int mpack_parse_tok(mpack_parser_t *walker, mpack_token_t tok,
mpack_walk_cb enter_cb, mpack_walk_cb exit_cb)
FUNUSED FNONULL_ARG((1,3,4));
MPACK_API int mpack_unparse_tok(mpack_parser_t *walker, mpack_token_t *tok,
mpack_walk_cb enter_cb, mpack_walk_cb exit_cb)
FUNUSED FNONULL_ARG((1,2,3,4));
MPACK_API int mpack_parse(mpack_parser_t *parser, const char **b, size_t *bl,
mpack_walk_cb enter_cb, mpack_walk_cb exit_cb)
FUNUSED FNONULL_ARG((1,2,3,4,5));
MPACK_API int mpack_unparse(mpack_parser_t *parser, char **b, size_t *bl,
mpack_walk_cb enter_cb, mpack_walk_cb exit_cb)
FUNUSED FNONULL_ARG((1,2,3,4,5));
MPACK_API void mpack_parser_copy(mpack_parser_t *d, mpack_parser_t *s)
FUNUSED FNONULL;
#endif /* MPACK_OBJECT_H */
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