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d5dd2833f29b8f739022560b9d6d99f18bae16ed
LeavesMC/patches/server/0097-Reduce-array-allocations.patch
violetc d5dd2833f2 Update Paper
2023-08-29 14:22:45 +08:00

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41 KiB
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Thu, 20 Jul 2023 15:03:28 +0800
Subject: [PATCH] Reduce array allocations
This patch is Powered by Gale(https://github.com/GaleMC/Gale)
diff --git a/src/main/java/com/destroystokyo/paper/util/maplist/EntityList.java b/src/main/java/com/destroystokyo/paper/util/maplist/EntityList.java
index 0133ea6feb1ab88f021f66855669f58367e7420b..d5e5463e3054cc06bd6589a864ff2003b1dfb9e3 100644
--- a/src/main/java/com/destroystokyo/paper/util/maplist/EntityList.java
+++ b/src/main/java/com/destroystokyo/paper/util/maplist/EntityList.java
@@ -5,6 +5,7 @@ import net.minecraft.world.entity.Entity;
import java.util.Arrays;
import java.util.Iterator;
import java.util.NoSuchElementException;
+import top.leavesmc.leaves.util.ArrayConstants;
// list with O(1) remove & contains
/**
@@ -17,9 +18,7 @@ public final class EntityList implements Iterable<Entity> {
this.entityToIndex.defaultReturnValue(Integer.MIN_VALUE);
}
- protected static final Entity[] EMPTY_LIST = new Entity[0];
-
- protected Entity[] entities = EMPTY_LIST;
+ protected Entity[] entities = ArrayConstants.emptyEntityArray; // Leaves - reduce array allocations
protected int count;
public int size() {
diff --git a/src/main/java/com/destroystokyo/paper/util/maplist/IBlockDataList.java b/src/main/java/com/destroystokyo/paper/util/maplist/IBlockDataList.java
index 277cfd9d1e8fff5d9b5e534b75c3c5162d58b0b7..19d5f3e167d7c94d33fcedc6c787d86ad5fee770 100644
--- a/src/main/java/com/destroystokyo/paper/util/maplist/IBlockDataList.java
+++ b/src/main/java/com/destroystokyo/paper/util/maplist/IBlockDataList.java
@@ -6,6 +6,7 @@ import java.util.Arrays;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.chunk.GlobalPalette;
+import top.leavesmc.leaves.util.ArrayConstants;
/**
* @author Spottedleaf
@@ -20,9 +21,7 @@ public final class IBlockDataList {
this.map.defaultReturnValue(Long.MAX_VALUE);
}
- private static final long[] EMPTY_LIST = new long[0];
-
- private long[] byIndex = EMPTY_LIST;
+ private long[] byIndex = ArrayConstants.emptyLongArray; // Leaves - reduce array allocations
private int size;
public static int getLocationKey(final int x, final int y, final int z) {
diff --git a/src/main/java/io/papermc/paper/command/subcommands/VersionCommand.java b/src/main/java/io/papermc/paper/command/subcommands/VersionCommand.java
index ae60bd96b5284d54676d8e7e4dd5d170b526ec1e..ad33c51ea9f74d2afd39c9139a9114b0f4436400 100644
--- a/src/main/java/io/papermc/paper/command/subcommands/VersionCommand.java
+++ b/src/main/java/io/papermc/paper/command/subcommands/VersionCommand.java
@@ -7,6 +7,7 @@ import org.bukkit.command.CommandSender;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.checkerframework.framework.qual.DefaultQualifier;
+import top.leavesmc.leaves.util.ArrayConstants;
@DefaultQualifier(NonNull.class)
public final class VersionCommand implements PaperSubcommand {
@@ -14,7 +15,7 @@ public final class VersionCommand implements PaperSubcommand {
public boolean execute(final CommandSender sender, final String subCommand, final String[] args) {
final @Nullable Command ver = MinecraftServer.getServer().server.getCommandMap().getCommand("version");
if (ver != null) {
- ver.execute(sender, "paper", new String[0]);
+ ver.execute(sender, "paper", ArrayConstants.emptyStringArray); // Leaves - reduce array allocations
}
return true;
}
diff --git a/src/main/java/io/papermc/paper/world/ChunkEntitySlices.java b/src/main/java/io/papermc/paper/world/ChunkEntitySlices.java
index 7e8dc9e8f381abfdcce2746edc93122d623622d1..59403aa7b77adab763c60f3f7805c802a94dcd41 100644
--- a/src/main/java/io/papermc/paper/world/ChunkEntitySlices.java
+++ b/src/main/java/io/papermc/paper/world/ChunkEntitySlices.java
@@ -24,6 +24,7 @@ import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.function.Predicate;
+import top.leavesmc.leaves.util.ArrayConstants;
public final class ChunkEntitySlices {
@@ -82,7 +83,7 @@ public final class ChunkEntitySlices {
}
}
- return ret.toArray(new org.bukkit.entity.Entity[0]);
+ return ret.toArray(ArrayConstants.emptyBukkitEntityArray); // Leaves - reduce array allocations
}
public CompoundTag save() {
@@ -303,7 +304,7 @@ public final class ChunkEntitySlices {
protected static final class BasicEntityList<E extends Entity> {
- protected static final Entity[] EMPTY = new Entity[0];
+ // protected static final Entity[] EMPTY = new Entity[0]; // Leaves - reduce array allocations
protected static final int DEFAULT_CAPACITY = 4;
protected E[] storage;
@@ -314,7 +315,7 @@ public final class ChunkEntitySlices {
}
public BasicEntityList(final int cap) {
- this.storage = (E[])(cap <= 0 ? EMPTY : new Entity[cap]);
+ this.storage = (E[])(cap <= 0 ? ArrayConstants.emptyEntityArray : new Entity[cap]); // Leaves - reduce array allocations
}
public boolean isEmpty() {
@@ -326,7 +327,7 @@ public final class ChunkEntitySlices {
}
private void resize() {
- if (this.storage == EMPTY) {
+ if (this.storage == ArrayConstants.emptyEntityArray) { // Leaves - reduce array allocations
this.storage = (E[])new Entity[DEFAULT_CAPACITY];
} else {
this.storage = Arrays.copyOf(this.storage, this.storage.length * 2);
diff --git a/src/main/java/net/minecraft/nbt/ByteArrayTag.java b/src/main/java/net/minecraft/nbt/ByteArrayTag.java
index 163b1895bcbd16e93d36cd60d03e6b21df51cba7..4c56f92e111ad457f9c8cb0694ea01f2a59be3c5 100644
--- a/src/main/java/net/minecraft/nbt/ByteArrayTag.java
+++ b/src/main/java/net/minecraft/nbt/ByteArrayTag.java
@@ -7,6 +7,7 @@ import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.lang3.ArrayUtils;
+import top.leavesmc.leaves.util.ArrayConstants;
public class ByteArrayTag extends CollectionTag<ByteTag> {
@@ -175,7 +176,7 @@ public class ByteArrayTag extends CollectionTag<ByteTag> {
}
public void clear() {
- this.data = new byte[0];
+ this.data = ArrayConstants.emptyByteArray; // Leaves - reduce array allocations
}
@Override
diff --git a/src/main/java/net/minecraft/nbt/CompoundTag.java b/src/main/java/net/minecraft/nbt/CompoundTag.java
index 7e94ebe06fc62293e665d6db19e42d947e7eb30f..b9661ba4b120e378ee1aff1fa1592827e512ec48 100644
--- a/src/main/java/net/minecraft/nbt/CompoundTag.java
+++ b/src/main/java/net/minecraft/nbt/CompoundTag.java
@@ -17,6 +17,7 @@ import javax.annotation.Nullable;
import net.minecraft.CrashReport;
import net.minecraft.CrashReportCategory;
import net.minecraft.ReportedException;
+import top.leavesmc.leaves.util.ArrayConstants;
public class CompoundTag implements Tag {
public static final Codec<CompoundTag> CODEC = Codec.PASSTHROUGH.comapFlatMap((dynamic) -> {
@@ -379,7 +380,7 @@ public class CompoundTag implements Tag {
throw new ReportedException(this.createReport(key, ByteArrayTag.TYPE, var3));
}
- return new byte[0];
+ return ArrayConstants.emptyByteArray; // Leaves - reduce array allocations
}
public int[] getIntArray(String key) {
@@ -391,7 +392,7 @@ public class CompoundTag implements Tag {
throw new ReportedException(this.createReport(key, IntArrayTag.TYPE, var3));
}
- return new int[0];
+ return ArrayConstants.emptyIntArray; // Leaves - reduce array allocations
}
public long[] getLongArray(String key) {
@@ -403,7 +404,7 @@ public class CompoundTag implements Tag {
throw new ReportedException(this.createReport(key, LongArrayTag.TYPE, var3));
}
- return new long[0];
+ return ArrayConstants.emptyLongArray; // Leaves - reduce array allocations
}
public CompoundTag getCompound(String key) {
diff --git a/src/main/java/net/minecraft/nbt/IntArrayTag.java b/src/main/java/net/minecraft/nbt/IntArrayTag.java
index 25ad2c6ff968f4a6b16b4dea3f67341a4261f2a4..478bc2428e133414d13e9a44ad7c2c567c13411e 100644
--- a/src/main/java/net/minecraft/nbt/IntArrayTag.java
+++ b/src/main/java/net/minecraft/nbt/IntArrayTag.java
@@ -7,6 +7,7 @@ import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.lang3.ArrayUtils;
+import top.leavesmc.leaves.util.ArrayConstants;
public class IntArrayTag extends CollectionTag<IntTag> {
@@ -189,7 +190,7 @@ public class IntArrayTag extends CollectionTag<IntTag> {
}
public void clear() {
- this.data = new int[0];
+ this.data = ArrayConstants.emptyIntArray; // Leaves - reduce array allocations
}
@Override
diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
index cf20f0983fc25b26cf92b9d3a28746b1909fc56b..c8d62a76bfa1a54b6ecb23f0d53ba2db15fcb1f7 100644
--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
@@ -47,6 +47,7 @@ import org.apache.commons.lang3.Validate;
import org.slf4j.Logger;
import org.slf4j.Marker;
import org.slf4j.MarkerFactory;
+import top.leavesmc.leaves.util.ArrayConstants;
public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
@@ -325,7 +326,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
}
public void setListener(PacketListener listener) {
- Validate.notNull(listener, "packetListener", new Object[0]);
+ Validate.notNull(listener, "packetListener", ArrayConstants.emptyObjectArray); // Leaves - reduce array allocations
this.packetListener = listener;
}
// Paper start
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index 8bd39a2809031950eab9f4b69db1c65b9e723ea3..21619aa9b039d59a14522ea872c6fe49023ad055 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -351,7 +351,7 @@ public class ServerEntity {
if (this.entity instanceof LivingEntity) {
List<Pair<EquipmentSlot, ItemStack>> list = Lists.newArrayList();
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
int i = aenumitemslot.length;
for (int j = 0; j < i; ++j) {
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 55ef6d5ffebe04e678dc89ec2740f031af361cb8..4c86d1836c8b4ac9c535cf5bccd71decf996278b 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -177,6 +177,7 @@ import org.bukkit.event.world.GenericGameEvent;
import org.bukkit.event.world.TimeSkipEvent;
// CraftBukkit end
import it.unimi.dsi.fastutil.ints.IntArrayList; // Paper
+import top.leavesmc.leaves.util.ArrayConstants;
public class ServerLevel extends Level implements WorldGenLevel {
@@ -1078,7 +1079,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
BlockPos blockposition2 = blockposition.set(j + randomX, randomY, k + randomZ);
BlockState iblockdata = com.destroystokyo.paper.util.maplist.IBlockDataList.getBlockDataFromRaw(raw);
- iblockdata.randomTick(this, blockposition2, this.randomTickRandom);
+ iblockdata.randomTick(this, blockposition2.immutable(), this.randomTickRandom); // Leaves - reduce array allocations
// We drop the fluid tick since LAVA is ALREADY TICKED by the above method (See LiquidBlock).
// TODO CHECK ON UPDATE (ping the Canadian)
}
@@ -1333,7 +1334,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
public static List<Entity> getCurrentlyTickingEntities() {
Entity ticking = currentlyTickingEntity.get();
- List<Entity> ret = java.util.Arrays.asList(ticking == null ? new Entity[0] : new Entity[] { ticking });
+ List<Entity> ret = java.util.Arrays.asList(ticking == null ? ArrayConstants.emptyEntityArray : new Entity[] { ticking }); // Leaves - reduce array allocations
return ret;
}
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 6640cb8c04871bebeadc59f91db097124d06f801..b3e893dde6a39e699f192c139fa1055321ec5809 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -249,6 +249,7 @@ import org.bukkit.inventory.InventoryView;
import org.bukkit.inventory.SmithingInventory;
import top.leavesmc.leaves.util.ProtocolUtils;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
public class ServerGamePacketListenerImpl implements ServerPlayerConnection, TickablePacketListener, ServerGamePacketListener {
@@ -415,7 +416,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
if (this.keepAlivePending) {
if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getScoreboardName()); // more info
- this.disconnect(Component.translatable("disconnect.timeout", new Object[0]), org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause
+ this.disconnect(Component.translatable("disconnect.timeout", ArrayConstants.emptyObjectArray), org.bukkit.event.player.PlayerKickEvent.Cause.TIMEOUT); // Paper - kick event cause // Leaves - reduce array allocations
}
} else {
if (elapsedTime >= 15000L) { // 15 seconds
@@ -894,13 +895,13 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
// PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel()); // Paper - run this async
// CraftBukkit start
if (this.chatSpamTickCount.addAndGet(io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.tabSpamIncrement) > io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.tabSpamLimit && !this.server.getPlayerList().isOp(this.player.getGameProfile())) { // Paper start - split and make configurable
- server.scheduleOnMain(() -> this.disconnect(Component.translatable("disconnect.spam", new Object[0]), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM)); // Paper - kick event cause
+ server.scheduleOnMain(() -> this.disconnect(Component.translatable("disconnect.spam", ArrayConstants.emptyObjectArray), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM)); // Paper - kick event cause // Leaves - reduce array allocations
return;
}
// Paper start
String str = packet.getCommand(); int index = -1;
if (str.length() > 64 && ((index = str.indexOf(' ')) == -1 || index >= 64)) {
- server.scheduleOnMain(() -> this.disconnect(Component.translatable("disconnect.spam", new Object[0]), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM)); // Paper
+ server.scheduleOnMain(() -> this.disconnect(Component.translatable("disconnect.spam", ArrayConstants.emptyObjectArray), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM)); // Paper - kick event cause // Leaves - reduce array allocations
return;
}
// Paper end
@@ -3380,7 +3381,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
// Paper start
if (!org.bukkit.Bukkit.isPrimaryThread()) {
if (this.recipeSpamPackets.addAndGet(io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.recipeSpamIncrement) > io.papermc.paper.configuration.GlobalConfiguration.get().spamLimiter.recipeSpamLimit) {
- this.server.scheduleOnMain(() -> this.disconnect(net.minecraft.network.chat.Component.translatable("disconnect.spam", new Object[0]), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM)); // Paper - kick event cause
+ this.server.scheduleOnMain(() -> this.disconnect(net.minecraft.network.chat.Component.translatable("disconnect.spam", ArrayConstants.emptyObjectArray), org.bukkit.event.player.PlayerKickEvent.Cause.SPAM)); // Paper - kick event cause // Leaves - reduce array allocations
return;
}
}
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
index 2ff578e4a953ffcf5176815ba8e3f06f73499989..bf082b9c3947d6037328526e5bfafe2bc3774d03 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -43,6 +43,7 @@ import org.bukkit.craftbukkit.util.Waitable;
import org.bukkit.event.player.AsyncPlayerPreLoginEvent;
import org.bukkit.event.player.PlayerPreLoginEvent;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener, TickablePacketListener {
@@ -236,8 +237,10 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
@Override
public void handleHello(ServerboundHelloPacket packet) {
- Validate.validState(this.state == ServerLoginPacketListenerImpl.State.HELLO, "Unexpected hello packet", new Object[0]);
- Validate.validState(ServerLoginPacketListenerImpl.isValidUsername(packet.name()), "Invalid characters in username", new Object[0]);
+ // Gale start - JettPack - reduce array allocations
+ Validate.validState(this.state == ServerLoginPacketListenerImpl.State.HELLO, "Unexpected hello packet", ArrayConstants.emptyObjectArray);
+ Validate.validState(ServerLoginPacketListenerImpl.isValidUsername(packet.name()), "Invalid characters in username", ArrayConstants.emptyObjectArray);
+ // Gale end - JettPack - reduce array allocations
// Paper start - validate usernames
if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode() && io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.performUsernameValidation) {
if (!this.iKnowThisMayNotBeTheBestIdeaButPleaseDisableUsernameValidation && !validateUsername(packet.name())) {
@@ -296,7 +299,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
@Override
public void handleKey(ServerboundKeyPacket packet) {
- Validate.validState(this.state == ServerLoginPacketListenerImpl.State.KEY, "Unexpected key packet", new Object[0]);
+ Validate.validState(this.state == ServerLoginPacketListenerImpl.State.KEY, "Unexpected key packet", ArrayConstants.emptyObjectArray); // Leaves - reduce array allocations
final String s;
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 5342cbb955cd6536004ca1c905fd9ab3bd9f7839..5718574a8a258a9a11417667b3373b4631a1211c 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -134,6 +134,7 @@ import org.bukkit.event.player.PlayerRespawnEvent.RespawnReason;
import org.bukkit.event.player.PlayerSpawnChangeEvent;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
import top.leavesmc.leaves.util.ReturnPortalManager; // Leaves - return portal fix
public abstract class PlayerList {
@@ -737,7 +738,7 @@ public abstract class PlayerList {
while (iterator.hasNext()) {
entityplayer = (ServerPlayer) iterator.next();
this.save(entityplayer); // CraftBukkit - Force the player's inventory to be saved
- entityplayer.connection.disconnect(Component.translatable("multiplayer.disconnect.duplicate_login", new Object[0]), org.bukkit.event.player.PlayerKickEvent.Cause.DUPLICATE_LOGIN); // Paper - kick event cause
+ entityplayer.connection.disconnect(Component.translatable("multiplayer.disconnect.duplicate_login", ArrayConstants.emptyObjectArray), org.bukkit.event.player.PlayerKickEvent.Cause.DUPLICATE_LOGIN); // Paper - kick event cause // Leaves - reduce array allocations
}
// Instead of kicking then returning, we need to store the kick reason
diff --git a/src/main/java/net/minecraft/server/players/StoredUserList.java b/src/main/java/net/minecraft/server/players/StoredUserList.java
index 9e8112fbc40a1d89c0f73ea4452e0fa1bb459bf4..fbca8ae92a91673e1ebc45c7587e0d847698e2d3 100644
--- a/src/main/java/net/minecraft/server/players/StoredUserList.java
+++ b/src/main/java/net/minecraft/server/players/StoredUserList.java
@@ -27,6 +27,7 @@ import javax.annotation.Nullable;
import net.minecraft.Util;
import net.minecraft.util.GsonHelper;
import org.slf4j.Logger;
+import top.leavesmc.leaves.util.ArrayConstants;
public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
@@ -96,7 +97,7 @@ public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
}
public String[] getUserList() {
- return (String[]) this.map.keySet().toArray(new String[0]);
+ return (String[]) this.map.keySet().toArray(ArrayConstants.emptyStringArray); // Leaves - reduce array allocations
}
public boolean isEmpty() {
diff --git a/src/main/java/net/minecraft/util/ZeroBitStorage.java b/src/main/java/net/minecraft/util/ZeroBitStorage.java
index e23995acb97100830079677aab0896487a705416..53e81721507cfc8f88be0ca9565746d78b2a1686 100644
--- a/src/main/java/net/minecraft/util/ZeroBitStorage.java
+++ b/src/main/java/net/minecraft/util/ZeroBitStorage.java
@@ -4,9 +4,10 @@ import java.util.Arrays;
import java.util.function.IntConsumer;
import org.apache.commons.lang3.Validate;
import net.minecraft.world.level.chunk.Palette;
+import top.leavesmc.leaves.util.ArrayConstants;
public class ZeroBitStorage implements BitStorage {
- public static final long[] RAW = new long[0];
+ public static final long[] RAW = ArrayConstants.emptyLongArray; // Leaves - reduce array allocations
private final int size;
public ZeroBitStorage(int size) {
diff --git a/src/main/java/net/minecraft/world/entity/EquipmentSlot.java b/src/main/java/net/minecraft/world/entity/EquipmentSlot.java
index 97ff19efa0b3943ccb7a6e02cba6ed2fea61adac..b8995b0af34a1d790f48aa8e1090d20451da912a 100644
--- a/src/main/java/net/minecraft/world/entity/EquipmentSlot.java
+++ b/src/main/java/net/minecraft/world/entity/EquipmentSlot.java
@@ -12,6 +12,7 @@ public enum EquipmentSlot {
private final int index;
private final int filterFlag;
private final String name;
+ public static final EquipmentSlot[] VALUES = EquipmentSlot.values(); // Leaves - reduce array allocations
private EquipmentSlot(EquipmentSlot.Type type, int entityId, int armorStandId, String name) {
this.type = type;
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index deaba5f2c0f684451d9cac5d1eb73fe7bcc36210..94179dafe22403b4aaa6adcff879b459a073ad09 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -3105,7 +3105,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
@Nullable
private Map<EquipmentSlot, ItemStack> collectEquipmentChanges() {
Map<EquipmentSlot, ItemStack> map = null;
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
int i = aenumitemslot.length;
for (int j = 0; j < i; ++j) {
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index e65ce75e2d44843afa6c4a033885a55dcb43c635..a54d43e5172afdb7850b2a52436c9a3d93cccef7 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -1073,7 +1073,7 @@ public abstract class Mob extends LivingEntity implements Targeting {
@Override
protected void dropCustomDeathLoot(DamageSource source, int lootingMultiplier, boolean allowDrops) {
super.dropCustomDeathLoot(source, lootingMultiplier, allowDrops);
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
int j = aenumitemslot.length;
for (int k = 0; k < j; ++k) {
@@ -1135,7 +1135,7 @@ public abstract class Mob extends LivingEntity implements Targeting {
}
boolean flag = true;
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
int j = aenumitemslot.length;
for (int k = 0; k < j; ++k) {
@@ -1222,7 +1222,7 @@ public abstract class Mob extends LivingEntity implements Targeting {
float f = localDifficulty.getSpecialMultiplier();
this.enchantSpawnedWeapon(random, f);
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
int i = aenumitemslot.length;
for (int j = 0; j < i; ++j) {
@@ -1441,7 +1441,7 @@ public abstract class Mob extends LivingEntity implements Targeting {
t0.setInvulnerable(this.isInvulnerable());
if (flag) {
t0.setCanPickUpLoot(this.canPickUpLoot());
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
int i = aenumitemslot.length;
for (int j = 0; j < i; ++j) {
diff --git a/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java b/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java
index 25ed5571b24e590bc95056020d84496492b53298..89d7364bc645a8b9217e87780cdc0ced5318bc2a 100644
--- a/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java
+++ b/src/main/java/net/minecraft/world/entity/monster/ZombieVillager.java
@@ -234,7 +234,7 @@ public class ZombieVillager extends Zombie implements VillagerDataHolder {
return;
}
// CraftBukkit end
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
int i = aenumitemslot.length;
for (int j = 0; j < i; ++j) {
diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index fac8de87a096e2f3ba71fc4043acf66491c5b62b..eaa5d29c3e4c32db21cc72295551d81b65e274b7 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -1019,7 +1019,7 @@ public final class ItemStack {
int k;
if (ItemStack.shouldShowInTooltip(i, ItemStack.TooltipPart.MODIFIERS)) {
- EquipmentSlot[] aenumitemslot = EquipmentSlot.values();
+ EquipmentSlot[] aenumitemslot = EquipmentSlot.VALUES; // Leaves - reduce array allocations
k = aenumitemslot.length;
diff --git a/src/main/java/net/minecraft/world/item/crafting/ShapedRecipe.java b/src/main/java/net/minecraft/world/item/crafting/ShapedRecipe.java
index 6693dd51440da3f0fc338c4e2cb67d3222eed182..ab12d9bcec0c9b8ff1360a9e6c0042d2c39b37a4 100644
--- a/src/main/java/net/minecraft/world/item/crafting/ShapedRecipe.java
+++ b/src/main/java/net/minecraft/world/item/crafting/ShapedRecipe.java
@@ -29,6 +29,7 @@ import org.bukkit.craftbukkit.inventory.CraftRecipe;
import org.bukkit.craftbukkit.inventory.CraftShapedRecipe;
import org.bukkit.inventory.RecipeChoice;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
public class ShapedRecipe extends io.papermc.paper.inventory.recipe.RecipeBookExactChoiceRecipe<CraftingContainer> implements CraftingRecipe { // Paper - improve exact recipe choices
@@ -263,7 +264,7 @@ public class ShapedRecipe extends io.papermc.paper.inventory.recipe.RecipeBookEx
}
if (pattern.length == l) {
- return new String[0];
+ return ArrayConstants.emptyStringArray; // Leaves - reduce array allocations
} else {
String[] astring1 = new String[pattern.length - l - k];
diff --git a/src/main/java/net/minecraft/world/item/enchantment/Enchantments.java b/src/main/java/net/minecraft/world/item/enchantment/Enchantments.java
index 2bfbdaeb2b0d99dfd956cd5936403fe8b0eeae64..7ad1545631604aa55f6d4fbdcbaefe6dc647f35c 100644
--- a/src/main/java/net/minecraft/world/item/enchantment/Enchantments.java
+++ b/src/main/java/net/minecraft/world/item/enchantment/Enchantments.java
@@ -44,8 +44,10 @@ public class Enchantments {
public static final Enchantment MULTISHOT = Enchantments.register("multishot", new MultiShotEnchantment(Enchantment.Rarity.RARE, new EquipmentSlot[]{EquipmentSlot.MAINHAND}));
public static final Enchantment QUICK_CHARGE = Enchantments.register("quick_charge", new QuickChargeEnchantment(Enchantment.Rarity.UNCOMMON, new EquipmentSlot[]{EquipmentSlot.MAINHAND}));
public static final Enchantment PIERCING = Enchantments.register("piercing", new ArrowPiercingEnchantment(Enchantment.Rarity.COMMON, new EquipmentSlot[]{EquipmentSlot.MAINHAND}));
- public static final Enchantment MENDING = Enchantments.register("mending", new MendingEnchantment(Enchantment.Rarity.RARE, EquipmentSlot.values()));
- public static final Enchantment VANISHING_CURSE = Enchantments.register("vanishing_curse", new VanishingCurseEnchantment(Enchantment.Rarity.VERY_RARE, EquipmentSlot.values()));
+ // Leaves start - reduce array allocations
+ public static final Enchantment MENDING = Enchantments.register("mending", new MendingEnchantment(Enchantment.Rarity.RARE, EquipmentSlot.VALUES));
+ public static final Enchantment VANISHING_CURSE = Enchantments.register("vanishing_curse", new VanishingCurseEnchantment(Enchantment.Rarity.VERY_RARE, EquipmentSlot.VALUES));
+ // Leaves end - reduce array allocations
public Enchantments() {}
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index a1fe9dfda59e65b849955dd04a439cb928488373..772300d2cb8174ea79cacfda90e64bc0581b603a 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -104,6 +104,7 @@ import org.bukkit.entity.SpawnCategory;
import org.bukkit.event.block.BlockPhysicsEvent;
import org.bukkit.event.world.GenericGameEvent;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
public abstract class Level implements LevelAccessor, AutoCloseable {
@@ -1531,7 +1532,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
public org.bukkit.entity.Entity[] getChunkEntities(int chunkX, int chunkZ) {
io.papermc.paper.world.ChunkEntitySlices slices = ((ServerLevel)this).getEntityLookup().getChunk(chunkX, chunkZ);
if (slices == null) {
- return new org.bukkit.entity.Entity[0];
+ return ArrayConstants.emptyBukkitEntityArray; // Leaves - reduce array allocations
}
return slices.getChunkEntities();
}
diff --git a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
index 10d3912ef043eefdf89105332e29b0d2bf4a5539..3bc33b552743be03c6b895e0d217152a65454807 100644
--- a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
@@ -43,6 +43,7 @@ import net.minecraft.world.phys.shapes.VoxelShape;
import org.bukkit.craftbukkit.inventory.CraftBlockInventoryHolder;
import org.bukkit.craftbukkit.util.DummyGeneratorAccess;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
public class ComposterBlock extends Block implements WorldlyContainerHolder {
@@ -415,7 +416,7 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
@Override
public int[] getSlotsForFace(Direction side) {
- return side == Direction.DOWN ? new int[]{0} : new int[0];
+ return side == Direction.DOWN ? ArrayConstants.zeroSingletonIntArray : ArrayConstants.emptyIntArray; // Leaves - reduce array allocations
}
@Override
@@ -464,7 +465,7 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
@Override
public int[] getSlotsForFace(Direction side) {
- return side == Direction.UP ? new int[]{0} : new int[0];
+ return side == Direction.UP ? ArrayConstants.zeroSingletonIntArray : ArrayConstants.emptyIntArray; // Leaves - reduce array allocations
}
@Override
@@ -506,7 +507,7 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
@Override
public int[] getSlotsForFace(Direction side) {
- return new int[0];
+ return ArrayConstants.emptyIntArray; // Leaves - reduce array allocations
}
@Override
diff --git a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
index 6171f1ec26a822f89c126f64edf3e02a354239df..bbb316b82fa1b1c8e968e9a1c90d47b7612bc2b1 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
@@ -58,6 +58,7 @@ import org.bukkit.event.inventory.FurnaceSmeltEvent;
import org.bukkit.event.inventory.FurnaceStartSmeltEvent;
import org.bukkit.inventory.CookingRecipe;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntity implements WorldlyContainer, RecipeHolder, StackedContentsCompatible {
@@ -65,7 +66,7 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
protected static final int SLOT_FUEL = 1;
protected static final int SLOT_RESULT = 2;
public static final int DATA_LIT_TIME = 0;
- private static final int[] SLOTS_FOR_UP = new int[]{0};
+ private static final int[] SLOTS_FOR_UP = ArrayConstants.zeroSingletonIntArray; // Leaves - reduce array allocations
private static final int[] SLOTS_FOR_DOWN = new int[]{2, 1};
private static final int[] SLOTS_FOR_SIDES = new int[]{1};
public static final int DATA_LIT_DURATION = 1;
diff --git a/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java b/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java
index 36af81f0957d17e170d229059c66f4eb4539dfeb..487d09aaadd9cf1b239cf9773fa71cbff6e6a77e 100644
--- a/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java
+++ b/src/main/java/net/minecraft/world/level/storage/PlayerDataStorage.java
@@ -9,7 +9,6 @@ import net.minecraft.nbt.CompoundTag;
import net.minecraft.nbt.NbtIo;
import net.minecraft.nbt.NbtUtils;
import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.util.datafix.DataFixTypes;
import net.minecraft.world.entity.player.Player;
import org.slf4j.Logger;
@@ -18,6 +17,7 @@ import java.io.FileInputStream;
import java.io.InputStream;
import org.bukkit.craftbukkit.entity.CraftPlayer;
// CraftBukkit end
+import top.leavesmc.leaves.util.ArrayConstants;
public class PlayerDataStorage {
@@ -119,7 +119,7 @@ public class PlayerDataStorage {
String[] astring = this.playerDir.list();
if (astring == null) {
- astring = new String[0];
+ astring = ArrayConstants.emptyStringArray; // Leaves - reduce array allocations
}
for (int i = 0; i < astring.length; ++i) {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftEquipmentSlot.java b/src/main/java/org/bukkit/craftbukkit/CraftEquipmentSlot.java
index 402a238cf502003a232bb95473bd13e59e067fab..6095f5c9298558c77a788c1c9f9ef1f32825b37c 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftEquipmentSlot.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftEquipmentSlot.java
@@ -5,8 +5,10 @@ import org.bukkit.inventory.EquipmentSlot;
public class CraftEquipmentSlot {
- private static final net.minecraft.world.entity.EquipmentSlot[] slots = new net.minecraft.world.entity.EquipmentSlot[EquipmentSlot.values().length];
- private static final EquipmentSlot[] enums = new EquipmentSlot[net.minecraft.world.entity.EquipmentSlot.values().length];
+ // Leaves start - reduce array allocations
+ private static final net.minecraft.world.entity.EquipmentSlot[] slots = net.minecraft.world.entity.EquipmentSlot.VALUES;
+ private static final EquipmentSlot[] enums = new EquipmentSlot[net.minecraft.world.entity.EquipmentSlot.VALUES.length];
+ // Leaves end - reduce array allocations
static {
set(EquipmentSlot.HAND, net.minecraft.world.entity.EquipmentSlot.MAINHAND);
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftEntityEquipment.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftEntityEquipment.java
index 6827979a5b270ced53b46ecb9eff548727dadb81..1b84078152d0585ec51288e585754be176f2d7c2 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftEntityEquipment.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftEntityEquipment.java
@@ -165,7 +165,7 @@ public class CraftEntityEquipment implements EntityEquipment {
@Override
public void clear() {
- for (net.minecraft.world.entity.EquipmentSlot slot : net.minecraft.world.entity.EquipmentSlot.values()) {
+ for (net.minecraft.world.entity.EquipmentSlot slot : net.minecraft.world.entity.EquipmentSlot.VALUES) { // Leaves - reduce array allocations
this.setEquipment(slot, null, false);
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/WeakCollection.java b/src/main/java/org/bukkit/craftbukkit/util/WeakCollection.java
index bbacf58740f3faea0d555e4012fe2b15fb46ed50..97afd508898096e5c2e6401cf02b0be587f365d9 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/WeakCollection.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/WeakCollection.java
@@ -6,6 +6,7 @@ import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.NoSuchElementException;
+import top.leavesmc.leaves.util.ArrayConstants;
public final class WeakCollection<T> implements Collection<T> {
static final Object NO_VALUE = new Object();
@@ -164,7 +165,7 @@ public final class WeakCollection<T> implements Collection<T> {
@Override
public Object[] toArray() {
- return this.toArray(new Object[0]);
+ return this.toArray(ArrayConstants.emptyObjectArray); // Leaves - reduce array allocations
}
@Override
diff --git a/src/main/java/top/leavesmc/leaves/util/ArrayConstants.java b/src/main/java/top/leavesmc/leaves/util/ArrayConstants.java
new file mode 100644
index 0000000000000000000000000000000000000000..0523062a825bd36f335f1fa6e1440eaaf400fd58
--- /dev/null
+++ b/src/main/java/top/leavesmc/leaves/util/ArrayConstants.java
@@ -0,0 +1,21 @@
+package top.leavesmc.leaves.util;
+
+import net.minecraft.server.level.ServerLevel;
+
+// Powered by Gale(https://github.com/GaleMC/Gale)
+
+public class ArrayConstants {
+
+ private ArrayConstants() {}
+
+ public static final Object[] emptyObjectArray = new Object[0];
+ public static final int[] emptyIntArray = new int[0];
+ public static final int[] zeroSingletonIntArray = new int[]{0};
+ public static final byte[] emptyByteArray = new byte[0];
+ public static final String[] emptyStringArray = new String[0];
+ public static final long[] emptyLongArray = new long[0];
+ public static final org.bukkit.entity.Entity[] emptyBukkitEntityArray = new org.bukkit.entity.Entity[0];
+ public static final net.minecraft.world.entity.Entity[] emptyEntityArray = new net.minecraft.world.entity.Entity[0];
+ public static final ServerLevel[] emptyServerLevelArray = new ServerLevel[0];
+
+}
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