servo: Merge #4777 - Adds borrow_for_script_deallocation and unsafe_mut_js_info method to avo (from dmarcos:issue4692); r=jdm

...id 'DOMRefCell already mutably borrowed' messages. This is just a temporary fix until the Rust standard library allows borrowing already-borrowed RefCell values during unwinding.

It also removes LiveDOMReferences destructor that it's a no-op but it contains an assert that was being violated causing an endless cycle of destructor calls ending up in a stack overflow.

Source-Repo: https://github.com/servo/servo
Source-Revision: a7e29939a1df679bd865573dc71f7ba65f0268c4
This commit is contained in:
Diego Marcos
2015-01-30 16:06:52 -07:00
parent ba695b5444
commit 2811312d2f
4 changed files with 17 additions and 10 deletions

View File

@@ -248,11 +248,13 @@ impl<'a> Drop for ScriptMemoryFailsafe<'a> {
fn drop(&mut self) {
match self.owner {
Some(owner) => {
let page = owner.page.borrow_mut();
for page in page.iter() {
*page.mut_js_info() = None;
unsafe {
let page = owner.page.borrow_for_script_deallocation();
for page in page.iter() {
*page.unsafe_mut_js_info() = None;
}
*owner.js_context.borrow_for_script_deallocation() = None;
}
*owner.js_context.borrow_mut() = None;
}
None => (),
}