From e1b5c992b4d138779d8e4cf1a84ac2817b4c5a95 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Fri, 26 May 2017 22:32:38 +0900
Subject: [PATCH] graphics: Refactoring: remove unnecessary empty slices

---
 internal/graphics/command.go | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/internal/graphics/command.go b/internal/graphics/command.go
index 46834093e..907d78d9f 100644
--- a/internal/graphics/command.go
+++ b/internal/graphics/command.go
@@ -37,10 +37,7 @@ type commandQueue struct {
 	m           sync.Mutex
 }
 
-var theCommandQueue = &commandQueue{
-	commands: []command{},
-	vertices: []float32{},
-}
+var theCommandQueue = &commandQueue{}
 
 func (q *commandQueue) appendVertices(vertices []float32) {
 	if len(q.vertices) < q.verticesNum+len(vertices) {
@@ -84,7 +81,7 @@ func (q *commandQueue) Enqueue(command command) {
 // its limit (maxQuads).
 func (q *commandQueue) commandGroups() [][]command {
 	cs := q.commands
-	gs := [][]command{}
+	var gs [][]command
 	quads := 0
 	for 0 < len(cs) {
 		if len(gs) == 0 {
@@ -149,7 +146,7 @@ func (q *commandQueue) Flush(context *opengl.Context) error {
 		}
 		lastN = n
 	}
-	q.commands = []command{}
+	q.commands = nil
 	q.verticesNum = 0
 	return nil
 }