bbatha

use std::collections::HashSet;
use std::hash::Hash;

pub struct Dag<'a, L: 'a, N: 'a> {
    leaves: HashSet<L>,
    // Might be better as an arena but that isn't available the playpen
    nodes: Vec<Node<'a, L, N>>
}

impl<'a, L: 'a + Eq + Hash, N: 'a> Dag<'a, L, N> {

bbatha

use std::collections::HashSet;
use std::hash::Hash;

use typed_arena::Arena;

#[derive(Clone)]
pub enum Edges<'a, L: 'a, N: 'a + Hash> {
    Leaves(Vec<&'a L>),
    Children(Vec<&'a Node<'a, L, N>>)
}

bbatha

[bbatha@dev threadpool-rs]% cargo test
   Compiling threadpool v0.0.1 (file:///home/bbatha/projects/threadpool-rs)
src/lib.rs:42:12: 42:16 error: `pool` does not live long enough
src/lib.rs:42            pool.execute(move || {
                         ^~~~
src/lib.rs:38:19: 47:6 note: reference must be valid for the block at 38:18...
src/lib.rs:38     fn it_works() {
src/lib.rs:39         let mut pool = ScopedThreadPool::new(2);
src/lib.rs:40
src/lib.rs:41         for _ in (0..3) {

bbatha

    fn it_works() {
        let guards: Vec<thread::JoinGuard<()>> = Vec::with_capacity(3);
        {
            let mut pool = ScopedThreadPool::new(2);

            for _ in (0..3) {
                guards.push(pool.execute(move || {
                    thread::sleep_ms(1000);
                    println!("Things are happening!");
                }));