yyjson_api_inline bool yyjson_ptr_ctx_remove()

in include/yyjson/yyjson.h [7687:7715]

• 27 lines of code
• 8 McCabe index (conditional complexity)

yyjson_api_inline bool yyjson_ptr_ctx_remove(yyjson_ptr_ctx *ctx) {
    yyjson_mut_val *ctn, *pre_key, *pre_val, *cur_key, *cur_val;
    size_t len;
    if (!ctx || !ctx->ctn || !ctx->pre) return false;
    ctn = ctx->ctn;
    if (yyjson_mut_is_obj(ctn)) {
        pre_key = ctx->pre;
        pre_val = pre_key->next;
        cur_key = pre_val->next;
        cur_val = cur_key->next;
        /* remove current key-value */
        pre_val->next = cur_val->next;
        if (ctn->uni.ptr == cur_key) ctn->uni.ptr = pre_key;
        ctx->pre = NULL;
        ctx->old = cur_val;
    } else {
        pre_val = ctx->pre;
        cur_val = pre_val->next;
        /* remove current key-value */
        pre_val->next = cur_val->next;
        if (ctn->uni.ptr == cur_val) ctn->uni.ptr = pre_val;
        ctx->pre = NULL;
        ctx->old = cur_val;
    }
    len = unsafe_yyjson_get_len(ctn) - 1;
    if (len == 0) ctn->uni.ptr = NULL;
    unsafe_yyjson_set_len(ctn, len);
    return true;
}