Paper/Spigot-Server-Patches/0112-Optimise-BlockState-s-hashCode-equals.patch
Aikar 57dd397155
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
2020-05-01 18:03:57 -04:00

88 lines
3.6 KiB
Diff

From 1cb6313f502ddae207028d16431f9c324bb6041f 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/server/BlockState.java b/src/main/java/net/minecraft/server/BlockState.java
index 0ce77d9230..00e67b567f 100644
--- a/src/main/java/net/minecraft/server/BlockState.java
+++ b/src/main/java/net/minecraft/server/BlockState.java
@@ -28,23 +28,13 @@ public abstract class BlockState<T extends Comparable<T>> implements IBlockState
}
public boolean equals(Object object) {
- if (this == object) {
- return true;
- } else if (!(object instanceof BlockState)) {
- return false;
- } else {
- BlockState<?> blockstate = (BlockState) object;
-
- return this.a.equals(blockstate.a) && this.b.equals(blockstate.b);
- }
+ return this == object; // Paper - only one instance per configuration
}
+ private static final java.util.concurrent.atomic.AtomicInteger hashId = new java.util.concurrent.atomic.AtomicInteger(1); // Paper - only one instance per configuration
+ private final int hashCode = 92821 * hashId.getAndIncrement(); // Paper - only one instance per configuration
public final int hashCode() {
- if (this.c == null) {
- this.c = this.c();
- }
-
- return this.c;
+ return this.hashCode; // Paper - only one instance per configuration
}
public int c() {
diff --git a/src/main/java/net/minecraft/server/BlockStateBoolean.java b/src/main/java/net/minecraft/server/BlockStateBoolean.java
index d8738447d7..7ca302b522 100644
--- a/src/main/java/net/minecraft/server/BlockStateBoolean.java
+++ b/src/main/java/net/minecraft/server/BlockStateBoolean.java
@@ -30,8 +30,7 @@ public class BlockStateBoolean extends BlockState<Boolean> {
return obool.toString();
}
- @Override
- public boolean equals(Object object) {
+ public boolean equals_unused(Object object) { // Paper
if (this == object) {
return true;
} else if (object instanceof BlockStateBoolean && super.equals(object)) {
diff --git a/src/main/java/net/minecraft/server/BlockStateEnum.java b/src/main/java/net/minecraft/server/BlockStateEnum.java
index 1486d460c8..7cdadc6b6a 100644
--- a/src/main/java/net/minecraft/server/BlockStateEnum.java
+++ b/src/main/java/net/minecraft/server/BlockStateEnum.java
@@ -49,8 +49,7 @@ public class BlockStateEnum<T extends Enum<T> & INamable> extends BlockState<T>
return ((INamable) t0).getName();
}
- @Override
- public boolean equals(Object object) {
+ public boolean equals_unused(Object object) { // Paper
if (this == object) {
return true;
} else if (object instanceof BlockStateEnum && super.equals(object)) {
diff --git a/src/main/java/net/minecraft/server/BlockStateInteger.java b/src/main/java/net/minecraft/server/BlockStateInteger.java
index 6f35c365f9..0499a71705 100644
--- a/src/main/java/net/minecraft/server/BlockStateInteger.java
+++ b/src/main/java/net/minecraft/server/BlockStateInteger.java
@@ -38,8 +38,7 @@ public class BlockStateInteger extends BlockState<Integer> {
return this.a;
}
- @Override
- public boolean equals(Object object) {
+ public boolean equals_unused(Object object) { // Paper
if (this == object) {
return true;
} else if (object instanceof BlockStateInteger && super.equals(object)) {
--
2.26.2