From 79cc5099b1825dae5507e74a09b6f6eb913667c8 Mon Sep 17 00:00:00 2001
From: Tomasz Miąsko <tomasz.miasko@gmail.com>
Date: Thu, 29 Oct 2020 00:00:00 +0000
Subject: Use RwLock instead of Lock for SourceMap::files

---
 compiler/rustc_data_structures/src/sync.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'compiler/rustc_data_structures/src')

diff --git a/compiler/rustc_data_structures/src/sync.rs b/compiler/rustc_data_structures/src/sync.rs
index d22f3adfb01..26706cd2b1b 100644
--- a/compiler/rustc_data_structures/src/sync.rs
+++ b/compiler/rustc_data_structures/src/sync.rs
@@ -512,7 +512,7 @@ impl<T: Clone> Clone for Lock<T> {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Default)]
 pub struct RwLock<T>(InnerRwLock<T>);
 
 impl<T> RwLock<T> {
-- 
cgit 1.4.1-3-g733a5