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Introduce RootedVec<JS<T>>::r()

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This commit is contained in:
Anthony Ramine 2015-07-23 17:38:49 +02:00
parent 658c3d05ae
commit 389a9ff643
4 changed files with 24 additions and 20 deletions
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8
components/script/dom/bindings/trace.rs
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@ -70,6 +70,7 @@ use std::collections::hash_state::HashState;
use std::ffi::CString;
use std::hash::{Hash, Hasher};
use std::intrinsics::return_address;
use std::mem;
use std::ops::{Deref, DerefMut};
use std::rc::Rc;
use std::sync::Arc;
@ -482,6 +483,13 @@ impl<T: JSTraceable + Reflectable> RootedVec<T> {
}
}
impl<T: JSTraceable + Reflectable> RootedVec<JS<T>> {
/// Obtain a safe slice of references that can't outlive that RootedVec.
pub fn r(&self) -> &[&T] {
unsafe { mem::transmute(&*self.v) }
}
}
impl<T: JSTraceable + Reflectable> Drop for RootedVec<T> {
fn drop(&mut self) {
RootedTraceableSet::remove(self);