Is it possible to alter a graph after its creation?

[troelsarvin]

Is it possible to alter a graph after its creation, or is a graph read-only?
I.e. is something like this possible?
https://docs.rs/dendron/0.1.5/dendron/node/struct.Node.html#method.create_as_first_child

[waynevanson]

Read only from the looks of it.
I don't see any mutability in the API.
Implementations use Box<T> for values, meaning values cannot be added.

Petgraph is a library that uses mutability.

[s1ck]

We started out with immutable graphs and focused on creating such graphs in a parallel fashion. Updating our internal CSR data structure is certainly possible, but would require quite some changes.

For small graphs, I can imagine a builder API that allows you to add nodes and edges and turns this into a mutable graph. Would that be something that works? Otherwise, as @waynevanson suggested, petgraph has mutable graphs, but no scale-up capabilities.