From 641b0e078d44428d1d833510d4264f04d20fbb11 Mon Sep 17 00:00:00 2001
From: Gav Wood <gavin@parity.io>
Date: Wed, 28 Apr 2021 17:34:37 +0200
Subject: [PATCH 1/3] Remove unneeded `Ord` bound from All

---
 frame/support/src/traits/members.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/frame/support/src/traits/members.rs b/frame/support/src/traits/members.rs
index 125f096fa92e1..d9dca4b7713d1 100644
--- a/frame/support/src/traits/members.rs
+++ b/frame/support/src/traits/members.rs
@@ -27,7 +27,7 @@ pub trait Contains<T> {
 
 /// A `Contains` implementation which always returns `true`.
 pub struct All<T>(PhantomData<T>);
-impl<T: Ord> Contains<T> for All<T> {
+impl Contains<T> for All<T> {
 	fn contains(_: &T) -> bool { true }
 }
 

From 4453bba9bce8ffadd9b6624b8a30c42ef068f483 Mon Sep 17 00:00:00 2001
From: Gav Wood <gavin@parity.io>
Date: Wed, 28 Apr 2021 17:35:35 +0200
Subject: [PATCH 2/3] Fixes

---
 frame/support/src/traits/members.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/frame/support/src/traits/members.rs b/frame/support/src/traits/members.rs
index d9dca4b7713d1..871a603ff8708 100644
--- a/frame/support/src/traits/members.rs
+++ b/frame/support/src/traits/members.rs
@@ -27,7 +27,7 @@ pub trait Contains<T> {
 
 /// A `Contains` implementation which always returns `true`.
 pub struct All<T>(PhantomData<T>);
-impl Contains<T> for All<T> {
+impl<T> Contains<T> for All<T> {
 	fn contains(_: &T) -> bool { true }
 }
 

From 45fc47790bd1010ff3f84ecdc79208ead028dc7e Mon Sep 17 00:00:00 2001
From: Gav Wood <gavin@parity.io>
Date: Wed, 28 Apr 2021 17:47:24 +0200
Subject: [PATCH 3/3] Contains supports tuples

---
 frame/support/src/traits/members.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/frame/support/src/traits/members.rs b/frame/support/src/traits/members.rs
index 871a603ff8708..8b9c2c90f541d 100644
--- a/frame/support/src/traits/members.rs
+++ b/frame/support/src/traits/members.rs
@@ -31,6 +31,16 @@ impl<T> Contains<T> for All<T> {
 	fn contains(_: &T) -> bool { true }
 }
 
+#[impl_trait_for_tuples::impl_for_tuples(30)]
+impl<T> Contains<T> for Tuple {
+	fn contains(t: &T) -> bool {
+		for_tuples!( #(
+			if Tuple::contains(t) { return true }
+		)* );
+		false
+	}
+}
+
 /// Create a type which implements the `Contains` trait for a particular type with syntax similar
 /// to `matches!`.
 #[macro_export]