From 7d043cedb1ba33756ae9b69fa554a3062bff70d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=94=B0=E6=AC=A7?= <thinkerou@gmail.com>
Date: Wed, 5 Jul 2017 09:55:50 +0800
Subject: [PATCH] improved swap (#974)

---
 tree.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tree.go b/tree.go
index a39f43bf..55eab99e 100644
--- a/tree.go
+++ b/tree.go
@@ -105,9 +105,7 @@ func (n *node) incrementChildPrio(pos int) int {
 	newPos := pos
 	for newPos > 0 && n.children[newPos-1].priority < prio {
 		// swap node positions
-		tmpN := n.children[newPos-1]
-		n.children[newPos-1] = n.children[newPos]
-		n.children[newPos] = tmpN
+		n.children[newPos-1], n.children[newPos] = n.children[newPos], n.children[newPos-1]
 
 		newPos--
 	}