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-rw-r--r--src/librustc_data_structures/sync.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustc_data_structures/sync.rs b/src/librustc_data_structures/sync.rs
index d935eb7bdab..c18a5328dd5 100644
--- a/src/librustc_data_structures/sync.rs
+++ b/src/librustc_data_structures/sync.rs
@@ -323,6 +323,7 @@ cfg_if! {
 }
 
 pub fn assert_sync<T: ?Sized + Sync>() {}
+pub fn assert_send<T: ?Sized + Send>() {}
 pub fn assert_send_val<T: ?Sized + Send>(_t: &T) {}
 pub fn assert_send_sync_val<T: ?Sized + Sync + Send>(_t: &T) {}