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Fix unsafe AtomicRefCell<PersistentLayoutData> transmute due to memory alignment differences

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This commit is contained in:
Imanol Fernandez 2017-05-12 12:17:58 +02:00
parent 48fdda3f07
commit 593e89086f
6 changed files with 39 additions and 0 deletions
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5
components/script_layout_interface/lib.rs
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@ -50,6 +50,7 @@ use servo_url::ServoUrl;
use std::sync::atomic::AtomicIsize;
use style::data::ElementData;
#[repr(C)]
pub struct PartialPersistentLayoutData {
/// Data that the style system associates with a node. When the
/// style system is being used standalone, this is all that hangs
@ -59,6 +60,9 @@ pub struct PartialPersistentLayoutData {
/// Information needed during parallel traversals.
pub parallel: DomParallelInfo,
// Required alignment for safe transmutes between PersistentLayoutData and PartialPersistentLayoutData.
_align: [u64; 0]
}
impl PartialPersistentLayoutData {
@ -66,6 +70,7 @@ impl PartialPersistentLayoutData {
PartialPersistentLayoutData {
style_data: ElementData::new(None),
parallel: DomParallelInfo::new(),
_align: [],
}
}
}