From 979b2ec659b0c36855e70efab9413e081c07b95b Mon Sep 17 00:00:00 2001
From: Jacob Pratt <jacob@jhpratt.dev>
Date: Mon, 28 Feb 2022 15:33:50 -0500
Subject: [PATCH 1/2] Stabilize `derive_default_enum`

---
 core/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/lib.rs b/core/src/lib.rs
index 660f6d92f..dc6bec246 100644
--- a/core/src/lib.rs
+++ b/core/src/lib.rs
@@ -167,7 +167,7 @@
 #![feature(const_precise_live_drops)]
 #![feature(const_refs_to_cell)]
 #![feature(decl_macro)]
-#![feature(derive_default_enum)]
+#![cfg_attr(bootstrap, feature(derive_default_enum))]
 #![feature(deprecated_suggestion)]
 #![feature(doc_cfg)]
 #![feature(doc_notable_trait)]

From 4f0b6df29f37c172dc5e0dc6f392fbb2248bf39d Mon Sep 17 00:00:00 2001
From: Jacob Pratt <jacob@jhpratt.dev>
Date: Tue, 8 Mar 2022 15:44:52 -0500
Subject: [PATCH 2/2] Add documentation

---
 core/src/default.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/core/src/default.rs b/core/src/default.rs
index fb862f7df..1ce00828b 100644
--- a/core/src/default.rs
+++ b/core/src/default.rs
@@ -52,6 +52,23 @@
 /// This trait can be used with `#[derive]` if all of the type's fields implement
 /// `Default`. When `derive`d, it will use the default value for each field's type.
 ///
+/// ### `enum`s
+///
+/// When using `#[derive(Default)]` on an `enum`, you need to choose which unit variant will be
+/// default. You do this by placing the `#[default]` attribute on the variant.
+///
+/// ```
+/// #[derive(Default)]
+/// enum Kind {
+///     #[default]
+///     A,
+///     B,
+///     C,
+/// }
+/// ```
+///
+/// You cannot use the `#[default]` attribute on non-unit or non-exhaustive variants.
+///
 /// ## How can I implement `Default`?
 ///
 /// Provide an implementation for the `default()` method that returns the value of