bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Explain &Arc.

Browse source
This commit is contained in:
Camille GILLOT 2022-02-01 18:46:04 +01:00
parent 4435dfec0f
commit e1a72c29aa
1 changed files with 4 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

4
compiler/rustc_middle/src/query/mod.rs
View file

@ -1681,6 +1681,10 @@ rustc_queries! {
desc { "optimization level used by backend" } desc { "optimization level used by backend" }
} }
/// Return the filenames where output artefacts shall be stored.
///
/// This query returns an `&Arc` because codegen backends need the value even after the `TyCtxt`
/// has been destroyed.
query output_filenames(_: ()) -> &'tcx Arc<OutputFilenames> { query output_filenames(_: ()) -> &'tcx Arc<OutputFilenames> {
eval_always eval_always
desc { "output_filenames" } desc { "output_filenames" }