Yatopia/patches/server/0051-lithium-enum_values.patch

From fdcaddb5b944a4b8336f1366eb17d56610effd60 Mon Sep 17 00:00:00 2001
From: tr7zw <tr7zw@live.de>
Date: Mon, 11 May 2020 21:37:44 +0200
Subject: [PATCH] lithium enum_values

---
 src/main/java/net/minecraft/server/BlockPiston.java       | 8 ++++----
 src/main/java/net/minecraft/server/EntityLiving.java      | 6 +++++-
 .../java/net/minecraft/server/PistonExtendsChecker.java   | 4 +++-
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/main/java/net/minecraft/server/BlockPiston.java b/src/main/java/net/minecraft/server/BlockPiston.java
index 8312ed779..23a2c1a91 100644
--- a/src/main/java/net/minecraft/server/BlockPiston.java
+++ b/src/main/java/net/minecraft/server/BlockPiston.java
@@ -138,8 +138,9 @@ public class BlockPiston extends BlockDirectional {
 
     }
 
+    private final static EnumDirection[] aenumdirection = EnumDirection.values(); // YAPFA - don't recreate
+    
     private boolean a(World world, BlockPosition blockposition, EnumDirection enumdirection) {
-        EnumDirection[] aenumdirection = EnumDirection.values();
         int i = aenumdirection.length;
 
         int j;
@@ -156,12 +157,11 @@ public class BlockPiston extends BlockDirectional {
             return true;
         } else {
             BlockPosition blockposition1 = blockposition.up();
-            EnumDirection[] aenumdirection1 = EnumDirection.values();
 
-            j = aenumdirection1.length;
+            j = aenumdirection.length;
 
             for (int k = 0; k < j; ++k) {
-                EnumDirection enumdirection2 = aenumdirection1[k];
+                EnumDirection enumdirection2 = aenumdirection[k];
 
                 if (enumdirection2 != EnumDirection.DOWN && world.isBlockFacePowered(blockposition1.shift(enumdirection2), enumdirection2)) {
                     return true;
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 1d66afe9b..2b3e264ed 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -2499,9 +2499,13 @@ public abstract class EntityLiving extends Entity {
         }
     }
 
+    /**
+     * @reason Avoid cloning enum values
+     */
+    private final static EnumItemSlot[] aenumitemslot = EnumItemSlot.values();
+    
     // Paper start - split into own method from above
     public void updateEntityEquipment() {
-        EnumItemSlot[] aenumitemslot = EnumItemSlot.values();
         int k = aenumitemslot.length;
         for (int l = 0; l < k; ++l) {
             EnumItemSlot enumitemslot = aenumitemslot[l];
diff --git a/src/main/java/net/minecraft/server/PistonExtendsChecker.java b/src/main/java/net/minecraft/server/PistonExtendsChecker.java
index de1c98cca..1ac3e5a37 100644
--- a/src/main/java/net/minecraft/server/PistonExtendsChecker.java
+++ b/src/main/java/net/minecraft/server/PistonExtendsChecker.java
@@ -167,9 +167,11 @@ public class PistonExtendsChecker {
         this.f.addAll(list2);
     }
 
+    private final static EnumDirection[] aenumdirection = EnumDirection.values(); // YAPFA - don't recreate
+    
     private boolean a(BlockPosition blockposition) {
         IBlockData iblockdata = this.a.getType(blockposition);
-        EnumDirection[] aenumdirection = EnumDirection.values();
+
         int i = aenumdirection.length;
 
         for (int j = 0; j < i; ++j) {
-- 
2.25.1.windows.1