From 0d65a936d2345caeeb11442781c6ea90c7b4b9ed Mon Sep 17 00:00:00 2001
From: Gavin Wood <gavin@parity.io>
Date: Wed, 28 Apr 2021 18:25:00 +0200
Subject: [PATCH] Remove unneeded `Ord` bound from All, Contains supports
 tuples (#8691)

* Remove unneeded `Ord` bound from All

* Fixes

* Contains supports tuples
---
 substrate/frame/support/src/traits/members.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/substrate/frame/support/src/traits/members.rs b/substrate/frame/support/src/traits/members.rs
index 125f096fa9..8b9c2c90f5 100644
--- a/substrate/frame/support/src/traits/members.rs
+++ b/substrate/frame/support/src/traits/members.rs
@@ -27,10 +27,20 @@ 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<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]