bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Comment drop_serialized_data.

Browse source
This commit is contained in:
Camille GILLOT 2021-08-28 21:49:51 +02:00
parent 98007e2ce6
commit bcefd487c3
1 changed files with 5 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
compiler/rustc_query_impl/src/on_disk_cache.rs
View file

@ -246,6 +246,11 @@ impl<'sess> rustc_middle::ty::OnDiskCache<'sess> for OnDiskCache<'sess> {
} }
} }
/// Execute all cache promotions and release the serialized backing Mmap.
///
/// Cache promotions require invoking queries, which needs to read the serialized data.
/// In order to serialize the new on-disk cache, the former on-disk cache file needs to be
/// deleted, hence we won't be able to refer to its memmapped data.
fn drop_serialized_data(&self, tcx: TyCtxt<'tcx>) { fn drop_serialized_data(&self, tcx: TyCtxt<'tcx>) {
// Register any dep nodes that we reused from the previous session, // Register any dep nodes that we reused from the previous session,
// but didn't `DepNode::construct` in this session. This ensures // but didn't `DepNode::construct` in this session. This ensures