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https://github.com/PaperMC/Paper.git
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85 lines
3.6 KiB
Diff
85 lines
3.6 KiB
Diff
From c9f0709ef168a8c27dc55d0238e9519489c42dba Mon Sep 17 00:00:00 2001
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From: Alfie Cleveland <alfeh@me.com>
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Date: Fri, 19 Aug 2016 01:52:56 +0100
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Subject: [PATCH] Optimise BlockState's hashCode/equals
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These are singleton "single instance" objects. We can rely on
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object identity checks safely.
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Use a simpler optimized hashcode
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diff --git a/src/main/java/net/minecraft/server/BlockState.java b/src/main/java/net/minecraft/server/BlockState.java
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index d95c0955a9..ea0e0ff4fe 100644
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--- a/src/main/java/net/minecraft/server/BlockState.java
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+++ b/src/main/java/net/minecraft/server/BlockState.java
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@@ -26,23 +26,13 @@ public abstract class BlockState<T extends Comparable<T>> implements IBlockState
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}
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public boolean equals(Object object) {
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- if (this == object) {
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- return true;
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- } else if (!(object instanceof BlockState)) {
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- return false;
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- } else {
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- BlockState<?> blockstate = (BlockState) object;
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-
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- return this.a.equals(blockstate.a) && this.b.equals(blockstate.b);
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- }
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+ return this == object; // Paper - only one instance per configuration
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}
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+ private static java.util.concurrent.atomic.AtomicInteger hashId = new java.util.concurrent.atomic.AtomicInteger(1);// Paper - only one instance per configuration
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+ private final int hashCode = 92821 * hashId.getAndIncrement(); // Paper - only one instance per configuration
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public final int hashCode() {
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- if (this.c == null) {
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- this.c = this.c();
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- }
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-
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- return this.c;
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+ return hashCode; // Paper - only one instance per configuration
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}
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public int c() {
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diff --git a/src/main/java/net/minecraft/server/BlockStateBoolean.java b/src/main/java/net/minecraft/server/BlockStateBoolean.java
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index 4c1d39d67c..71d2ad9703 100644
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--- a/src/main/java/net/minecraft/server/BlockStateBoolean.java
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+++ b/src/main/java/net/minecraft/server/BlockStateBoolean.java
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@@ -28,7 +28,7 @@ public class BlockStateBoolean extends BlockState<Boolean> {
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return obool.toString();
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}
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- public boolean equals(Object object) {
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+ public boolean equals_unused(Object object) { // Paper
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if (this == object) {
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return true;
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} else if (object instanceof BlockStateBoolean && super.equals(object)) {
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diff --git a/src/main/java/net/minecraft/server/BlockStateEnum.java b/src/main/java/net/minecraft/server/BlockStateEnum.java
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index 986b9ccea8..facbf30b4e 100644
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--- a/src/main/java/net/minecraft/server/BlockStateEnum.java
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+++ b/src/main/java/net/minecraft/server/BlockStateEnum.java
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@@ -47,7 +47,7 @@ public class BlockStateEnum<T extends Enum<T> & INamable> extends BlockState<T>
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return ((INamable) t0).getName();
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}
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- public boolean equals(Object object) {
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+ public boolean equals_unused(Object object) { // Paper
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if (this == object) {
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return true;
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} else if (object instanceof BlockStateEnum && super.equals(object)) {
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diff --git a/src/main/java/net/minecraft/server/BlockStateInteger.java b/src/main/java/net/minecraft/server/BlockStateInteger.java
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index 2f12e15e07..613cd0bce2 100644
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--- a/src/main/java/net/minecraft/server/BlockStateInteger.java
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+++ b/src/main/java/net/minecraft/server/BlockStateInteger.java
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@@ -37,7 +37,7 @@ public class BlockStateInteger extends BlockState<Integer> {
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return this.a;
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}
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- public boolean equals(Object object) {
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+ public boolean equals_unused(Object object) { // Paper
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if (this == object) {
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return true;
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} else if (object instanceof BlockStateInteger && super.equals(object)) {
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--
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2.21.0
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