papermc/Spigot-Server-Patches/0159-Optimize-ItemStack.isEmpty.patch
Aikar 05466e3b47
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Bukkit Changes:
d2834556 SPIGOT-4219: Event for PigZombies angering.

CraftBukkit Changes:
a9c796f1 SPIGOT-4184: Fix furnaces not matching Vanilla smelt or animations
195f071e SPIGOT-4219: Event for PigZombies angering.
5e3082c7 SPIGOT-4230: Improve legacy block types
2018-08-05 19:46:43 -04:00

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From f71f7c99f39e17afaa189ddb74c6ff65d58231d8 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 c7ef9c6890..4f230975aa 100644
--- a/src/main/java/net/minecraft/server/ItemStack.java
+++ b/src/main/java/net/minecraft/server/ItemStack.java
@@ -142,7 +142,7 @@ public final class ItemStack {
}
public boolean isEmpty() {
- return this == ItemStack.a ? true : (this.getItem() != null && this.getItem() != Items.AIR ? this.count <= 0 : true);
+ return this == ItemStack.a || this.item == null || this.item == Items.AIR || this.count <= 0; // Paper
}
public ItemStack cloneAndSubtract(int i) {
--
2.18.0