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style: Add a comment about a Send bound that may look confusing.

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Emilio Cobos Álvarez 2019-09-02 11:55:28 +02:00
parent c7add81517
commit 3fcd23dcdf
1 changed files with 3 additions and 0 deletions
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3
components/style/scoped_tls.rs
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@ -15,6 +15,9 @@ use std::ops::DerefMut;
/// ///
/// We use this on Servo to construct thread-local contexts, but clear them once /// We use this on Servo to construct thread-local contexts, but clear them once
/// we're done with restyling. /// we're done with restyling.
///
/// Note that the cleanup is done on the thread that owns the scoped TLS, thus
/// the Send bound.
pub struct ScopedTLS<'scope, T: Send> { pub struct ScopedTLS<'scope, T: Send> {
pool: &'scope rayon::ThreadPool, pool: &'scope rayon::ThreadPool,
slots: Box<[RefCell<Option<T>>]>, slots: Box<[RefCell<Option<T>>]>,