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authorNicholas Nethercote <nnethercote@mozilla.com>2020-07-07 13:10:19 +1000
committerNicholas Nethercote <nnethercote@mozilla.com>2020-07-10 11:53:26 +1000
commit1e8ec2db1d3d695958a8040fbb3491a4378ef7ae (patch)
tree4c31bdfc360c6b0b913b9d97d82852f9baad6d88
parent0a7d2970e5947e7a2940a32e6975817a389b0708 (diff)
downloadrust-1e8ec2db1d3d695958a8040fbb3491a4378ef7ae.tar.gz
rust-1e8ec2db1d3d695958a8040fbb3491a4378ef7ae.zip
Add an explanatory comment to `scoped_thread`.
-rw-r--r--src/librustc_interface/util.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/librustc_interface/util.rs b/src/librustc_interface/util.rs
index fe091e92062..438b72b0b61 100644
--- a/src/librustc_interface/util.rs
+++ b/src/librustc_interface/util.rs
@@ -102,6 +102,8 @@ impl Write for Sink {
     }
 }
 
+/// Like a `thread::Builder::spawn` followed by a `join()`, but avoids the need
+/// for `'static` bounds.
 #[cfg(not(parallel_compiler))]
 pub fn scoped_thread<F: FnOnce() -> R + Send, R: Send>(cfg: thread::Builder, f: F) -> R {
     struct Ptr(*mut ());