From aa19857127ac6877aca3df03db1e21266bb26624 Mon Sep 17 00:00:00 2001
From: lixin <lixin@dustess.com>
Date: Sat, 4 Nov 2023 14:49:30 +0800
Subject: [PATCH] fix: magma.Reverse

---
 magma/magma.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/magma/magma.go b/magma/magma.go
index 9a2de43..75672e0 100644
--- a/magma/magma.go
+++ b/magma/magma.go
@@ -33,7 +33,7 @@ func MakeMagma[A any](c func(A, A) A) Magma[A] {
 
 func Reverse[A any](m Magma[A]) Magma[A] {
 	return MakeMagma(func(x A, y A) A {
-		return m.Concat(y, y)
+		return m.Concat(y, x)
 	})
 }