Function append_node

crawl-ref/source/json.cc:575–586

}

static void append_node(JsonNode *parent, JsonNode *child)
{
    child->parent = parent;
    child->prev = parent->children.tail;
    child->next = nullptr;

    if (parent->children.tail != nullptr)
        parent->children.tail->next = child;
    else
        parent->children.head = child;
    parent->children.tail = child;
}

static void prepend_node(JsonNode *parent, JsonNode *child)
{