static usize yyjson_imut_copy()

in include/yyjson/yyjson.c [1615:1653]

• 39 lines of code
• 9 McCabe index (conditional complexity)

static usize yyjson_imut_copy(yyjson_val **val_ptr, char **buf_ptr,
                              yyjson_mut_val *mval) {
    yyjson_val *val = *val_ptr;
    yyjson_type type = unsafe_yyjson_get_type(mval);
    if (type == YYJSON_TYPE_ARR || type == YYJSON_TYPE_OBJ) {
        yyjson_mut_val *child = (yyjson_mut_val *)mval->uni.ptr;
        usize len = unsafe_yyjson_get_len(mval), i;
        usize val_sum = 1;
        if (type == YYJSON_TYPE_OBJ) {
            if (len) child = child->next->next;
            len <<= 1;
        } else {
            if (len) child = child->next;
        }
        *val_ptr = val + 1;
        for (i = 0; i < len; i++) {
            val_sum += yyjson_imut_copy(val_ptr, buf_ptr, child);
            child = child->next;
        }
        val->tag = mval->tag;
        val->uni.ofs = val_sum * sizeof(yyjson_val);
        return val_sum;
    } else if (type == YYJSON_TYPE_STR || type == YYJSON_TYPE_RAW) {
        char *buf = *buf_ptr;
        usize len = unsafe_yyjson_get_len(mval);
        memcpy((void *)buf, (const void *)mval->uni.str, len);
        buf[len] = '\0';
        val->tag = mval->tag;
        val->uni.str = buf;
        *val_ptr = val + 1;
        *buf_ptr = buf + len + 1;
        return 1;
    } else {
        val->tag = mval->tag;
        val->uni = mval->uni;
        *val_ptr = val + 1;
        return 1;
    }
}