dep-res

Simple dependency resolution

Example

```rust

[derive(Debug)]

struct SimpleDep { pub id: usize, pub deps: Vec, }

impl DepMeta for SimpleDep { type Id = usize;

fn get_id(&self) -> Self::Id {
    self.id
}

fn get_deps(&self) -> &[Self::Id] {
    &*self.deps
}

}

let items = vec![ SimpleDep { id: 0, deps: vec![], }, SimpleDep { id: 1, deps: vec![0], }, SimpleDep { id: 2, deps: vec![], }, SimpleDep { id: 3, deps: vec![], }, SimpleDep { id: 4, deps: vec![3], }, SimpleDep { id: 5, deps: vec![4], }, ];

let mut dr = DepRes::new(); dr.add(&items); let r = dr.resolve().unwrap();

let items = r.sortedbylevel(); println!("{:?}", items); // [0, 2, 3, 1, 4, 5]

let levels = r.iter_level().collect::>(); println!("{:?}", levels); // // example, actually unordered // // [ // DepLevel { level: 0, deps: {0: (), 2: (), 3: ()} }, // DepLevel { level: 1, deps: {1: (), 4: ()} }, // DepLevel { level: 2, deps: {5: ()} }, // ] ```