PaperMC/patches/server/0112-Optimise-BlockState-s-hashCode-equals.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alfie Cleveland <alfeh@me.com>
Date: Fri, 19 Aug 2016 01:52:56 +0100
Subject: [PATCH] Optimise BlockState's hashCode/equals

These are singleton "single instance" objects. We can rely on
object identity checks safely.

Use a simpler optimized hashcode

diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java b/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java
index ee2f1bff22fed14cda434173dc6286e4d4520822..b63116b333b6e06494091a82588acfb639bddb71 100644
--- a/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java
+++ b/src/main/java/net/minecraft/world/level/block/state/properties/BooleanProperty.java
@@ -30,8 +30,7 @@ public class BooleanProperty extends Property<Boolean> {
         return value.toString();
     }
 
-    @Override
-    public boolean equals(Object object) {
+    public boolean equals_unused(Object object) { // Paper - Perf: Optimize hashCode/equals
         if (this == object) {
             return true;
         } else {
diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java b/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java
index f4d9856420a6e7e857fc9b9cb6182a54fe341568..3097298fe356df98967cf4bdeaaede69dfe8a441 100644
--- a/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java
+++ b/src/main/java/net/minecraft/world/level/block/state/properties/EnumProperty.java
@@ -44,8 +44,7 @@ public class EnumProperty<T extends Enum<T> & StringRepresentable> extends Prope
         return value.getSerializedName();
     }
 
-    @Override
-    public boolean equals(Object object) {
+    public boolean equals_unused(Object object) { // Paper - Perf: Optimize hashCode/equals
         if (this == object) {
             return true;
         } else {
diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java b/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java
index 3c590d400032d8266de63aae301fedbd83d37a1d..3a850321a4bcc68058483b5fd53e829c425a68af 100644
--- a/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java
+++ b/src/main/java/net/minecraft/world/level/block/state/properties/IntegerProperty.java
@@ -35,8 +35,7 @@ public class IntegerProperty extends Property<Integer> {
         return this.values;
     }
 
-    @Override
-    public boolean equals(Object object) {
+    public boolean equals_unused(Object object) { // Paper - Perf: Optimize hashCode/equals
         if (this == object) {
             return true;
         } else {
diff --git a/src/main/java/net/minecraft/world/level/block/state/properties/Property.java b/src/main/java/net/minecraft/world/level/block/state/properties/Property.java
index 7cbc5e6e75f389f47ef07045f9876cec192f14e4..9055f15af0cae55effa6942913a9d7edf3857e07 100644
--- a/src/main/java/net/minecraft/world/level/block/state/properties/Property.java
+++ b/src/main/java/net/minecraft/world/level/block/state/properties/Property.java
@@ -70,7 +70,7 @@ public abstract class Property<T extends Comparable<T>> {
 
     @Override
     public boolean equals(Object object) {
-        return this == object || object instanceof Property<?> property && this.clazz.equals(property.clazz) && this.name.equals(property.name);
+        return this == object; // Paper - Perf: Optimize hashCode/equals
     }
 
     @Override