From 0ac810e61e128cfd3d657bcf5af1d1401ea1559c Mon Sep 17 00:00:00 2001 From: Alfie Cleveland 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 77b25317a..be7e10d85 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> 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 31cb8ac84..3f085c7d6 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 { 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 59d86fc66..82a1fac6f 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 & INamable> extends BlockState 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 6861c2b05..74ef69952 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 { 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)) { -- 2.21.0