From 6e11329b54c2fc4e3ed73f84c1bce13f253cfed7 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Fri, 14 Aug 2020 11:17:03 +0200
Subject: [PATCH] mention 'lifetime extension' in promotion doc comments

---
 src/librustc_mir/transform/promote_consts.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustc_mir/transform/promote_consts.rs b/src/librustc_mir/transform/promote_consts.rs
index c05641057015..94637bae44a7 100644
--- a/src/librustc_mir/transform/promote_consts.rs
+++ b/src/librustc_mir/transform/promote_consts.rs
@@ -101,7 +101,7 @@ impl TempState {
 /// of a larger candidate.
 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
 pub enum Candidate {
-    /// Borrow of a constant temporary.
+    /// Borrow of a constant temporary, candidate for lifetime extension.
     Ref(Location),
 
     /// Promotion of the `x` in `[x; 32]`.