I am trying to implement a scenegraph-like data structure in Rust. I would like an equivalent to this C++ code expressed in safe Rust:
struct Node
{
Node* parent; // should be mutable, and nullable (no parent)
std::vector<Node*> child;
virtual ~Node()
{
for(auto it = child.begin(); it != child.end(); ++it)
{
delete *it;
}
}
void addNode(Node* newNode)
{
if (newNode->parent)
{
newNode->parent.child.erase(newNode->parent.child.find(newNode));
}
newNode->parent = this;
child.push_back(newNode);
}
}
Properties I want:
- the parent takes ownership of its children
- the nodes are accessible from the outside via a reference of some kind
- events that touch one
Nodecan potentially mutate the whole tree