Auto merge of #25451 - kunalmohan:19308-AccountableRefCell, r=jdm

Add accountable-refcell as optional build time feature

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It can be used with the format `./mach build --features refcell_backtrace`.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #19308  (GitHub issue number if applicable)

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- [X] These changes do not require tests because it adds a optional build-time feature only.

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bors-servo 2020-01-08 15:44:41 -05:00 committed by GitHub
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29 changed files with 69 additions and 44 deletions

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@ -4,7 +4,13 @@
//! A shareable mutable container for the DOM.
use std::cell::{BorrowError, BorrowMutError, Ref, RefCell, RefMut};
#[cfg(feature = "refcell_backtrace")]
pub use accountable_refcell::{ref_filter_map, Ref, RefCell, RefMut};
#[cfg(not(feature = "refcell_backtrace"))]
pub use ref_filter_map::ref_filter_map;
use std::cell::{BorrowError, BorrowMutError};
#[cfg(not(feature = "refcell_backtrace"))]
pub use std::cell::{Ref, RefCell, RefMut};
use style::thread_state::{self, ThreadState};
/// A mutable field in the DOM.