rz_serialize.h

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// SPDX-FileCopyrightText: Florian Märkl <info@florianmaerkl.de>
// SPDX-License-Identifier: LGPL-3.0-only
 
#ifndef RZ_SERIALIZE_H
#define RZ_SERIALIZE_H
 
#include <rz_util/rz_json.h>
#include <rz_list.h>
 
typedef RzList RzSerializeResultInfo;
 
static inline RzSerializeResultInfo *rz_serialize_result_info_new(void) {
    return rz_list_newf(free);
}
 
static inline void rz_serialize_result_info_free(RzSerializeResultInfo *info) {
    rz_list_free(info);
}
 
// Common helpers for writing (de)serialization code
 
#define RZ_SERIALIZE_ERR(res, ...) \
    do { \
        if (res) { \
            rz_list_push(res, rz_str_newf(__VA_ARGS__)); \
        } \
    } while (0)
 
typedef HtPP RzKeyParser;
 
static inline RzKeyParser *rz_key_parser_new(void) {
    return ht_pp_new0();
}
 
static inline void rz_key_parser_free(RzKeyParser *parser) {
    ht_pp_free(parser);
}
 
static inline void rz_key_parser_add(RzKeyParser *parser, const char *key, int val) {
    ht_pp_insert(parser, key, (void *)(size_t)val);
}
 
#define RZ_KEY_PARSER_UNKNOWN -1
 
#define RZ_KEY_PARSER_SWITCH(parser, key) \
    bool key_parser_found = false; \
    int key_parser_v = (int)(size_t)ht_pp_find(parser, key, &key_parser_found); \
    if (!key_parser_found) { \
        key_parser_v = RZ_KEY_PARSER_UNKNOWN; \
    } \
    switch (key_parser_v)
 
#define RZ_KEY_PARSER_JSON(parser, json, child, body) \
    if (json->type == RZ_JSON_OBJECT) { \
        for (RzJson *child = json->children.first; child; child = child->next) { \
            RZ_KEY_PARSER_SWITCH(parser, child->key) { body } \
        } \
    }
 
#define RZ_SERIALIZE_SUB(db, subdb, res, ns, rip) \
    do { \
        subdb = sdb_ns(db, ns, false); \
        if (!subdb) { \
            RZ_SERIALIZE_ERR(res, "missing " ns " namespace"); \
            rip \
        } \
    } while (0)
 
#define RZ_SERIALIZE_SUB_DO(db, subdb, res, ns, call, rip) \
    RZ_SERIALIZE_SUB(db, subdb, res, ns, rip); \
    if (!(call)) { \
        rip \
    }
 
#endif // RZ_SERIALIZE_H