From 3dab4e22d43c1ec724b23d301c81bdc2b99d50e7 Mon Sep 17 00:00:00 2001
From: Josh Stone <jistone@redhat.com>
Date: Mon, 12 Apr 2021 16:07:28 -0700
Subject: Skip into_iter() for arrays before 2021

---
 library/core/src/array/mod.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'library/core/src/array')

diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs
index bd6f35edfac..ddbdc6a4acf 100644
--- a/library/core/src/array/mod.rs
+++ b/library/core/src/array/mod.rs
@@ -155,6 +155,10 @@ impl<T: fmt::Debug, const N: usize> fmt::Debug for [T; N] {
     }
 }
 
+// Note: the `#[rustc_skip_array_during_method_dispatch]` on `trait IntoIterator`
+// hides this implementation from explicit `.into_iter()` calls on editions < 2021,
+// so those calls will still resolve to the slice implementation, by reference.
+#[cfg(not(bootstrap))]
 #[stable(feature = "array_into_iter_impl", since = "1.53.0")]
 impl<T, const N: usize> IntoIterator for [T; N] {
     type Item = T;
-- 
cgit 1.4.1-3-g733a5