pub fn queue_finished(&mut self) {
        let mut out = HashMap::new();
        for key in self.dep_map.keys() {
            depth(key, &self.reverse_dep_map, &mut out);
        }
        self.priority = out.into_iter().map(|(n, set)| (n, set.len())).collect();

        fn depth<'a, N: Hash + Eq + Clone, E: Hash + Eq + Clone>(
            key: &N,
            map: &HashMap<N, HashMap<E, HashSet<N>>>,
            results: &'a mut HashMap<N, HashSet<N>>,
        ) -> &'a HashSet<N> {
            if results.contains_key(key) {
                let depth = &results[key];
                assert!(!depth.is_empty(), "cycle in DependencyQueue");
                return depth;
            }
            results.insert(key.clone(), HashSet::new());

            let mut set = HashSet::new();
            set.insert(key.clone());

            for dep in map
                .get(key)
                .into_iter()
                .flat_map(|it| it.values())
                .flatten()
            {
                set.extend(depth(dep, map, results).iter().cloned())
            }

            let slot = results.get_mut(key).unwrap();
            *slot = set;
            &*slot
        }
    }
/// All nodes have been added, calculate some internal metadata and prepare
/// for `dequeue`.
All nodes have been added, calculate some internal metadata and prepare
for `dequeue`.
All nodes have been added calculate some internal metadata and prepare for ` dequeue ` .
pub fn queue_finished(&mut self) {
        let mut out = HashMap::new();
        for key in self.dep_map.keys() {
            depth(key, &self.reverse_dep_map, &mut out);
        }
        self.priority = out.into_iter().map(|(n, set)| (n, set.len())).collect();
        fn depth<'a, N: Hash + Eq + Clone, E: Hash + Eq + Clone>(
            key: &N,
            map: &HashMap<N, HashMap<E, HashSet<N>>>,
            results: &'a mut HashMap<N, HashSet<N>>,
        ) -> &'a HashSet<N> {
            if results.contains_key(key) {
                let depth = &results[key];
                assert!(!depth.is_empty(), "cycle in DependencyQueue");
                return depth;
            }
            results.insert(key.clone(), HashSet::new());
            let mut set = HashSet::new();
            set.insert(key.clone());
            for dep in map
                .get(key)
                .into_iter()
                .flat_map(|it| it.values())
                .flatten()
            {
                set.extend(depth(dep, map, results).iter().cloned())
            }
            let slot = results.get_mut(key).unwrap();
            *slot = set;
            &*slot
        }
    }
pub fn queue_finished ( & mut self ) { let mut out = HashMap :: new ( ) ; for key in self . dep_map . keys ( ) { depth ( key , & self . reverse_dep_map , & mut out ) ; } self . priority = out . into_iter ( ) . map ( | ( n , set ) | ( n , set . len ( ) ) ) . collect ( ) ; fn depth < ' a , N : Hash + Eq + Clone , E : Hash + Eq + Clone > ( key : & N , map : & HashMap < N , HashMap < E , HashSet < N > > > , results : & ' a mut HashMap < N , HashSet < N > > , ) -> & ' a HashSet < N > { if results . contains_key ( key ) { let depth = & results [ key ] ; assert ! ( depth is_empty ( ) " " ) ; return depth ; } results . insert ( key . clone ( ) , HashSet :: new ( ) ) ; let mut set = HashSet :: new ( ) ; set . insert ( key . clone ( ) ) ; for dep in map . get ( key ) . into_iter ( ) . flat_map ( | it | it . values ( ) ) . flatten ( ) { set . extend ( depth ( dep , map , results ) . iter ( ) . cloned ( ) ) } let slot = results . get_mut ( key ) . unwrap ( ) ; * slot = set ; & * slot } }
All nodes have been added, calculate some internal metadata and prepare
for `dequeue`.
All nodes have been added calculate some internal metadata and prepare for ` dequeue ` .
&mut self
&mut self