Incremental Topo

A data structure for maintaining an topological ordering in an incremental fashion.

Usage

To use incremental-topo, first add this to your Cargo.toml:

[dependencies]
incremental-topo = "0.1"

Next, add this to your crate:

extern crate incremental_topo;

use incremental_topo::IncrTopo;

let mut dag = IncrementalTopo::new();

dag.add_node("cat");
dag.add_node("dog");
dag.add_node("human");

assert_eq!(dag.size(), 3);

dag.add_dependency("human", "dog").unwrap();
dag.add_dependency("human", "cat").unwrap();
dag.add_dependency("dog", "cat").unwrap();

let animal_order: Vec<_> = dag.descendants("human").unwrap().map(|v| *v).collect();

assert_eq!(animal_order, vec!["dog", "cat"]);

See documentation for more details.

License

This project is dual licensed under the MIT license and Apache 2.0 license.