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servo_arc cleanups for publishing.

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Differential Revision: https://phabricator.services.mozilla.com/D6034
This commit is contained in:
Manish Goregaokar 2018-09-18 09:19:18 +00:00 • committed by Emilio Cobos Álvarez
parent 22da3c22a2
commit 84ca681a78
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4 changed files with 229 additions and 154 deletions
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12
components/selectors/tree.rs
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@ -8,18 +8,22 @@
use attr::{AttrSelectorOperation, CaseSensitivity, NamespaceConstraint};
use matching::{ElementSelectorFlags, MatchingContext};
use parser::SelectorImpl;
use servo_arc::NonZeroPtrMut;
use std::fmt::Debug;
use std::ptr::NonNull;
/// Opaque representation of an Element, for identity comparisons. We use
/// NonZeroPtrMut to get the NonZero optimization.
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
pub struct OpaqueElement(NonZeroPtrMut<()>);
pub struct OpaqueElement(NonNull<()>);
unsafe impl Send for OpaqueElement {}
impl OpaqueElement {
/// Creates a new OpaqueElement from an arbitrarily-typed pointer.
pub fn new<T>(ptr: *const T) -> Self {
OpaqueElement(NonZeroPtrMut::new(ptr as *const () as *mut ()))
pub fn new<T>(ptr: &T) -> Self {
unsafe {
OpaqueElement(NonNull::new_unchecked(ptr as *const T as *const () as *mut ()))
}
}
}