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Revert "Optimize ItemStack.isEmpty()"

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This reverts commit c2b8a4be32.

See a bug
This commit is contained in:
Aikar 2016-12-21 03:51:48 -05:00
parent c2b8a4be32
commit c6ffa97c7a
1 changed files with 0 additions and 29 deletions
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Spigot-Server-Patches/Optimize-ItemStack.isEmpty.patch
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@ -1,29 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 21 Dec 2016 03:48:29 -0500
Subject: [PATCH] Optimize ItemStack.isEmpty()
Remove hashMap lookup every check, simplify code to remove ternary
diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
index c8694e8b9..23c975891 100644
--- a/src/main/java/net/minecraft/server/ItemStack.java
+++ b/src/main/java/net/minecraft/server/ItemStack.java
@@ -0,0 +0,0 @@ public final class ItemStack {
this.F();
}
+ // Paper start - optimize isEmpty
+ private static Item airItem;
public boolean isEmpty() {
- return this == ItemStack.a ? true : (this.item != null && this.item != Item.getItemOf(Blocks.AIR) ? (this.count <= 0 ? true : this.damage < -32768 || this.damage > '\uffff') : true);
+ if (airItem == null) {
+ airItem = Item.getItemOf(Blocks.AIR);
+ }
+ return this == ItemStack.a || this.item == null || this.item != airItem || this.count <= 0 || this.damage < -32768 || this.damage > '\uffff';
}
+ // Paper end
public static void a(DataConverterManager dataconvertermanager) {
dataconvertermanager.a(DataConverterTypes.ITEM_INSTANCE, (DataInspector) (new DataInspectorBlockEntity()));
--