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remove outdated comment

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This commit is contained in:
Niko Matsakis 2019-07-01 21:00:52 -04:00
parent e7d704dd8b
commit 2750830694
1 changed files with 3 additions and 4 deletions
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7
src/dependency.rs
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@ -21,10 +21,9 @@ pub(crate) struct Dependency<DB: Database> {
impl<DB: Database> Dependency<DB> {
pub(crate) fn new(slot: Arc<dyn DatabaseSlot<DB> + '_>) -> Self {
// Forgive me for I am a horrible monster and pray for death:
//
// Hiding these bounds behind a trait object is a total hack
// but I just want to see how well this works. -nikomatsakis
// Unsafety note: It is safe to 'pretend' the trait object is
// Send+Sync+'static because the phantom-data will reflect the
// reality.
let slot: Arc<dyn DatabaseSlot<DB> + Send + Sync> = unsafe { std::mem::transmute(slot) };
Self {
slot,