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https://github.com/PaperMC/Paper.git
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67 lines
2.5 KiB
Diff
67 lines
2.5 KiB
Diff
From 8581e708e437ba0aedfd536cef77fcd7cadf7abe 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 BlockStateEnum hashCode and equals
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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 725087de5..5e6cb5d7d 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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@@ -17,6 +17,11 @@ public class BlockStateEnum<T extends Enum<T> & INamable> extends BlockState<T>
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private final ImmutableSet<T> a;
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private final Map<String, T> b = Maps.newHashMap();
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+ // Paper start - BlockStateEnum is a singleton, so we can use our own hashCode
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+ private static int hashId = 0;
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+ private int hashCode;
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+ // Paper end
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+
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protected BlockStateEnum(String s, Class<T> oclass, Collection<T> collection) {
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super(s, oclass);
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this.a = ImmutableSet.copyOf(collection);
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@@ -30,9 +35,10 @@ public class BlockStateEnum<T extends Enum<T> & INamable> extends BlockState<T>
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throw new IllegalArgumentException("Multiple values have the same name \'" + s1 + "\'");
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}
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- this.b.put(s1, oenum);
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+ this.b.put(s1, (T) oenum); // Paper - decompile fix
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}
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+ this.hashCode = hashId++; // Paper
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}
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public Collection<T> d() {
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@@ -47,24 +53,14 @@ 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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+ @Override // Paper start - override equals as BlockStateEnum is a singleton
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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 BlockStateEnum && super.equals(object)) {
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- BlockStateEnum blockstateenum = (BlockStateEnum) object;
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-
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- return this.a.equals(blockstateenum.a) && this.b.equals(blockstateenum.b);
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- } else {
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- return false;
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- }
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+ return this == object;
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+ // Paper end - override equals as BlockStateEnum is a singleton
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}
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public int c() {
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- int i = super.c();
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-
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- i = 31 * i + this.a.hashCode();
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- i = 31 * i + this.b.hashCode();
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- return i;
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+ return hashCode; // Paper - hashCode method is final, but we can do this here
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}
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public static <T extends Enum<T> & INamable> BlockStateEnum<T> of(String s, Class<T> oclass) {
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--
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2.18.0
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