PaperMC/patches/api/0469-Brigadier-based-command-API.patch
Bjarne Koll e1c0033552
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
2b4b6d14 PR-1023: Convert InventoryView to interface

CraftBukkit Changes:
68603b1c1 Use expanded interaction ranges for traced interact events
eae9f760c PR-1414: Convert InventoryView to interface
ee9eafe67 Fix Implementation for DamageSource#isIndirect for internal custom causing entity
2024-06-16 17:23:42 +02:00

1989 lines
80 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Mon, 1 Aug 2022 22:50:29 -0400
Subject: [PATCH] Brigadier based command API
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
diff --git a/build.gradle.kts b/build.gradle.kts
index eecf458e1250ee9968630cf5c3c3287a1693e52e..fd39ed209b20c927054b8482c400beeeeab460a3 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -27,6 +27,7 @@ configurations.api {
}
dependencies {
+ api("com.mojang:brigadier:1.2.9") // Paper - Brigadier command api
// api dependencies are listed transitively to API consumers
api("com.google.guava:guava:32.1.2-jre")
api("com.google.code.gson:gson:2.10.1")
@@ -92,9 +93,29 @@ sourceSets {
}
}
// Paper end
+// Paper start - brigadier API
+val outgoingVariants = arrayOf("runtimeElements", "apiElements", "sourcesElements", "javadocElements")
+configurations {
+ val outgoing = outgoingVariants.map { named(it) }
+ for (config in outgoing) {
+ config {
+ outgoing {
+ capability("${project.group}:${project.name}:${project.version}")
+ capability("io.papermc.paper:paper-mojangapi:${project.version}")
+ capability("com.destroystokyo.paper:paper-mojangapi:${project.version}")
+ }
+ }
+ }
+}
+// Paper end
configure<PublishingExtension> {
publications.create<MavenPublication>("maven") {
+ // Paper start - brigadier API
+ outgoingVariants.forEach {
+ suppressPomMetadataWarningsFor(it)
+ }
+ // Paper end
from(components["java"])
}
}
diff --git a/src/main/java/com/destroystokyo/paper/brigadier/BukkitBrigadierCommand.java b/src/main/java/com/destroystokyo/paper/brigadier/BukkitBrigadierCommand.java
new file mode 100644
index 0000000000000000000000000000000000000000..03a1078446f84b998cd7fe8d64abecb2e36bab0a
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/brigadier/BukkitBrigadierCommand.java
@@ -0,0 +1,16 @@
+package com.destroystokyo.paper.brigadier;
+
+import com.mojang.brigadier.Command;
+import com.mojang.brigadier.suggestion.SuggestionProvider;
+
+import java.util.function.Predicate;
+
+/**
+ * Brigadier {@link Command}, {@link SuggestionProvider}, and permission checker for Bukkit {@link Command}s.
+ *
+ * @param <S> command source type
+ * @deprecated For removal, see {@link io.papermc.paper.command.brigadier.Commands} on how to use the new Brigadier API.
+ */
+@Deprecated(forRemoval = true, since = "1.20.6")
+public interface BukkitBrigadierCommand <S extends BukkitBrigadierCommandSource> extends Command<S>, Predicate<S>, SuggestionProvider<S> {
+}
diff --git a/src/main/java/com/destroystokyo/paper/brigadier/BukkitBrigadierCommandSource.java b/src/main/java/com/destroystokyo/paper/brigadier/BukkitBrigadierCommandSource.java
new file mode 100644
index 0000000000000000000000000000000000000000..28b44789e3be586c4b680fff56e5d2ff095f9ac2
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/brigadier/BukkitBrigadierCommandSource.java
@@ -0,0 +1,25 @@
+package com.destroystokyo.paper.brigadier;
+
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Entity;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @deprecated For removal, see {@link io.papermc.paper.command.brigadier.Commands} on how to use the new Brigadier API.
+ */
+@Deprecated(forRemoval = true)
+public interface BukkitBrigadierCommandSource {
+
+ @Nullable
+ Entity getBukkitEntity();
+
+ @Nullable
+ World getBukkitWorld();
+
+ @Nullable
+ Location getBukkitLocation();
+
+ CommandSender getBukkitSender();
+}
diff --git a/src/main/java/com/destroystokyo/paper/event/brigadier/AsyncPlayerSendCommandsEvent.java b/src/main/java/com/destroystokyo/paper/event/brigadier/AsyncPlayerSendCommandsEvent.java
new file mode 100644
index 0000000000000000000000000000000000000000..ba5472a068075f8f7fb5b9bce05e783ca9b4ffdf
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/brigadier/AsyncPlayerSendCommandsEvent.java
@@ -0,0 +1,73 @@
+package com.destroystokyo.paper.event.brigadier;
+
+import com.mojang.brigadier.tree.RootCommandNode;
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.player.PlayerEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Fired any time a Brigadier RootCommandNode is generated for a player to inform the client of commands.
+ * You may manipulate this CommandNode to change what the client sees.
+ *
+ * <p>This event may fire on login, world change, and permission rebuilds, by plugin request, and potentially future means.</p>
+ *
+ * <p>This event will fire before {@link org.bukkit.event.player.PlayerCommandSendEvent}, so no filtering has been done by
+ * other plugins yet.</p>
+ *
+ * <p>WARNING: This event will potentially (and most likely) fire twice! Once for Async, and once again for Sync.
+ * It is important that you check event.isAsynchronous() and event.hasFiredAsync() to ensure you only act once.
+ * If for some reason we are unable to send this asynchronously in the future, only the sync method will fire.</p>
+ *
+ * <p>Your logic should look like this:
+ * {@code if (event.isAsynchronous() || !event.hasFiredAsync()) { // do stuff }}</p>
+ *
+ * <p>If your logic is not safe to run asynchronously, only react to the synchronous version.</p>
+ *
+ * <p>This is a draft/experimental API and is subject to change.</p>
+ */
+@ApiStatus.Experimental
+public class AsyncPlayerSendCommandsEvent<S extends CommandSourceStack> extends PlayerEvent {
+
+ private static final HandlerList handlers = new HandlerList();
+ private final RootCommandNode<S> node;
+ private final boolean hasFiredAsync;
+
+ @ApiStatus.Internal
+ public AsyncPlayerSendCommandsEvent(@NotNull Player player, @NotNull RootCommandNode<S> node, boolean hasFiredAsync) {
+ super(player, !Bukkit.isPrimaryThread());
+ this.node = node;
+ this.hasFiredAsync = hasFiredAsync;
+ }
+
+ /**
+ * Gets the full Root Command Node being sent to the client, which is mutable.
+ *
+ * @return the root command node
+ */
+ public @NotNull RootCommandNode<S> getCommandNode() {
+ return node;
+ }
+
+ /**
+ * Gets if this event has already fired asynchronously.
+ *
+ * @return whether this event has already fired asynchronously
+ */
+ public boolean hasFiredAsync() {
+ return hasFiredAsync;
+ }
+
+ @NotNull
+ public HandlerList getHandlers() {
+ return handlers;
+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
+ return handlers;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/event/brigadier/AsyncPlayerSendSuggestionsEvent.java b/src/main/java/com/destroystokyo/paper/event/brigadier/AsyncPlayerSendSuggestionsEvent.java
new file mode 100644
index 0000000000000000000000000000000000000000..6ac205de582983863bd5b3c0fa70d4375dd751c5
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/brigadier/AsyncPlayerSendSuggestionsEvent.java
@@ -0,0 +1,85 @@
+package com.destroystokyo.paper.event.brigadier;
+
+import com.mojang.brigadier.suggestion.Suggestions;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.player.PlayerEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Called when sending {@link Suggestions} to the client. Will be called asynchronously if a plugin
+ * marks the {@link com.destroystokyo.paper.event.server.AsyncTabCompleteEvent} event handled asynchronously,
+ * otherwise called synchronously.
+ */
+public class AsyncPlayerSendSuggestionsEvent extends PlayerEvent implements Cancellable {
+
+ private static final HandlerList handlers = new HandlerList();
+ private boolean cancelled = false;
+
+ private Suggestions suggestions;
+ private final String buffer;
+
+ @ApiStatus.Internal
+ public AsyncPlayerSendSuggestionsEvent(@NotNull Player player, @NotNull Suggestions suggestions, @NotNull String buffer) {
+ super(player, !Bukkit.isPrimaryThread());
+ this.suggestions = suggestions;
+ this.buffer = buffer;
+ }
+
+ /**
+ * Gets the input buffer sent to request these suggestions.
+ *
+ * @return the input buffer
+ */
+ public @NotNull String getBuffer() {
+ return buffer;
+ }
+
+ /**
+ * Gets the suggestions to be sent to client.
+ *
+ * @return the suggestions
+ */
+ public @NotNull Suggestions getSuggestions() {
+ return suggestions;
+ }
+
+ /**
+ * Sets the suggestions to be sent to client.
+ *
+ * @param suggestions suggestions
+ */
+ public void setSuggestions(@NotNull Suggestions suggestions) {
+ this.suggestions = suggestions;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean isCancelled() {
+ return this.cancelled;
+ }
+
+ /**
+ * Cancels sending suggestions to the client.
+ * {@inheritDoc}
+ */
+ @Override
+ public void setCancelled(boolean cancel) {
+ this.cancelled = cancel;
+ }
+
+ @NotNull
+ public HandlerList getHandlers() {
+ return handlers;
+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
+ return handlers;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/event/brigadier/CommandRegisteredEvent.java b/src/main/java/com/destroystokyo/paper/event/brigadier/CommandRegisteredEvent.java
new file mode 100644
index 0000000000000000000000000000000000000000..acc2bd2ec56e64b9d4bd8677d99448a97ecb5201
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/brigadier/CommandRegisteredEvent.java
@@ -0,0 +1,171 @@
+package com.destroystokyo.paper.event.brigadier;
+
+import com.destroystokyo.paper.brigadier.BukkitBrigadierCommand;
+import com.mojang.brigadier.tree.ArgumentCommandNode;
+import com.mojang.brigadier.tree.LiteralCommandNode;
+import com.mojang.brigadier.tree.RootCommandNode;
+import org.bukkit.Warning;
+import org.bukkit.command.Command;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.server.ServerEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Fired anytime the server synchronizes Bukkit commands to Brigadier.
+ *
+ * <p>Allows a plugin to control the command node structure for its commands.
+ * This is done at Plugin Enable time after commands have been registered, but may also
+ * run at a later point in the server lifetime due to plugins, a server reload, etc.</p>
+ *
+ * <p>This is a draft/experimental API and is subject to change.</p>
+ * @deprecated For removal, use the new brigadier api.
+ */
+@ApiStatus.Experimental
+@Deprecated(since = "1.20.6")
+@Warning(reason = "This event has been superseded by the Commands API and will be removed in a future release. Listen to LifecycleEvents.COMMANDS instead.", value = true)
+public class CommandRegisteredEvent<S extends com.destroystokyo.paper.brigadier.BukkitBrigadierCommandSource> extends ServerEvent implements Cancellable {
+
+ private static final HandlerList handlers = new HandlerList();
+ private final String commandLabel;
+ private final Command command;
+ private final com.destroystokyo.paper.brigadier.BukkitBrigadierCommand<S> brigadierCommand;
+ private final RootCommandNode<S> root;
+ private final ArgumentCommandNode<S, String> defaultArgs;
+ private LiteralCommandNode<S> literal;
+ private boolean rawCommand = false;
+ private boolean cancelled = false;
+
+ public CommandRegisteredEvent(String commandLabel, com.destroystokyo.paper.brigadier.BukkitBrigadierCommand<S> brigadierCommand, Command command, RootCommandNode<S> root, LiteralCommandNode<S> literal, ArgumentCommandNode<S, String> defaultArgs) {
+ this.commandLabel = commandLabel;
+ this.brigadierCommand = brigadierCommand;
+ this.command = command;
+ this.root = root;
+ this.literal = literal;
+ this.defaultArgs = defaultArgs;
+ }
+
+ /**
+ * Gets the command label of the {@link Command} being registered.
+ *
+ * @return the command label
+ */
+ public String getCommandLabel() {
+ return this.commandLabel;
+ }
+
+ /**
+ * Gets the {@link BukkitBrigadierCommand} for the {@link Command} being registered. This can be used
+ * as the {@link com.mojang.brigadier.Command command executor} or
+ * {@link com.mojang.brigadier.suggestion.SuggestionProvider} of a {@link com.mojang.brigadier.tree.CommandNode}
+ * to delegate to the {@link Command} being registered.
+ *
+ * @return the {@link BukkitBrigadierCommand}
+ */
+ public BukkitBrigadierCommand<S> getBrigadierCommand() {
+ return this.brigadierCommand;
+ }
+
+ /**
+ * Gets the {@link Command} being registered.
+ *
+ * @return the {@link Command}
+ */
+ public Command getCommand() {
+ return this.command;
+ }
+
+ /**
+ * Gets the {@link RootCommandNode} which is being registered to.
+ *
+ * @return the {@link RootCommandNode}
+ */
+ public RootCommandNode<S> getRoot() {
+ return this.root;
+ }
+
+ /**
+ * Gets the Bukkit APIs default arguments node (greedy string), for if
+ * you wish to reuse it.
+ *
+ * @return default arguments node
+ */
+ public ArgumentCommandNode<S, String> getDefaultArgs() {
+ return this.defaultArgs;
+ }
+
+ /**
+ * Gets the {@link LiteralCommandNode} to be registered for the {@link Command}.
+ *
+ * @return the {@link LiteralCommandNode}
+ */
+ public LiteralCommandNode<S> getLiteral() {
+ return this.literal;
+ }
+
+ /**
+ * Sets the {@link LiteralCommandNode} used to register this command. The default literal is mutable, so
+ * this is primarily if you want to completely replace the object.
+ *
+ * @param literal new node
+ */
+ public void setLiteral(LiteralCommandNode<S> literal) {
+ this.literal = literal;
+ }
+
+ /**
+ * Gets whether this command should is treated as "raw".
+ *
+ * @see #setRawCommand(boolean)
+ * @return whether this command is treated as "raw"
+ */
+ public boolean isRawCommand() {
+ return this.rawCommand;
+ }
+
+ /**
+ * Sets whether this command should be treated as "raw".
+ *
+ * <p>A "raw" command will only use the node provided by this event for
+ * sending the command tree to the client. For execution purposes, the default
+ * greedy string execution of a standard Bukkit {@link Command} is used.</p>
+ *
+ * <p>On older versions of Paper, this was the default and only behavior of this
+ * event.</p>
+ *
+ * @param rawCommand whether this command should be treated as "raw"
+ */
+ public void setRawCommand(final boolean rawCommand) {
+ this.rawCommand = rawCommand;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean isCancelled() {
+ return this.cancelled;
+ }
+
+ /**
+ * Cancels registering this command to Brigadier, but will remain in Bukkit Command Map. Can be used to hide a
+ * command from all players.
+ *
+ * {@inheritDoc}
+ */
+ @Override
+ public void setCancelled(boolean cancel) {
+ this.cancelled = cancel;
+ }
+
+ @NotNull
+ public HandlerList getHandlers() {
+ return handlers;
+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
+ return handlers;
+ }
+}
diff --git a/src/main/java/io/papermc/paper/brigadier/PaperBrigadier.java b/src/main/java/io/papermc/paper/brigadier/PaperBrigadier.java
new file mode 100644
index 0000000000000000000000000000000000000000..9df87708206e26167a2c4934deff7fc6f1657106
--- /dev/null
+++ b/src/main/java/io/papermc/paper/brigadier/PaperBrigadier.java
@@ -0,0 +1,47 @@
+package io.papermc.paper.brigadier;
+
+import com.mojang.brigadier.Message;
+import io.papermc.paper.command.brigadier.MessageComponentSerializer;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.ComponentLike;
+import net.kyori.adventure.text.TextComponent;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+/**
+ * Helper methods to bridge the gaps between Brigadier and Paper-MojangAPI.
+ * @deprecated for removal. See {@link MessageComponentSerializer} for a direct replacement of functionality found in
+ * this class.
+ * As a general entrypoint to brigadier on paper, see {@link io.papermc.paper.command.brigadier.Commands}.
+ */
+@Deprecated(forRemoval = true, since = "1.20.6")
+public final class PaperBrigadier {
+ private PaperBrigadier() {
+ throw new RuntimeException("PaperBrigadier is not to be instantiated!");
+ }
+
+ /**
+ * Create a new Brigadier {@link Message} from a {@link ComponentLike}.
+ *
+ * <p>Mostly useful for creating rich suggestion tooltips in combination with other Paper-MojangAPI APIs.</p>
+ *
+ * @param componentLike The {@link ComponentLike} to use for the {@link Message} contents
+ * @return A new Brigadier {@link Message}
+ */
+ public static @NonNull Message message(final @NonNull ComponentLike componentLike) {
+ return MessageComponentSerializer.message().serialize(componentLike.asComponent());
+ }
+
+ /**
+ * Create a new {@link Component} from a Brigadier {@link Message}.
+ *
+ * <p>If the {@link Message} was created from a {@link Component}, it will simply be
+ * converted back, otherwise a new {@link TextComponent} will be created with the
+ * content of {@link Message#getString()}</p>
+ *
+ * @param message The {@link Message} to create a {@link Component} from
+ * @return The created {@link Component}
+ */
+ public static @NonNull Component componentFromMessage(final @NonNull Message message) {
+ return MessageComponentSerializer.message().deserialize(message);
+ }
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/BasicCommand.java b/src/main/java/io/papermc/paper/command/brigadier/BasicCommand.java
new file mode 100644
index 0000000000000000000000000000000000000000..0f6b921b4bcf983cf25188823f78a061eec5263d
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/BasicCommand.java
@@ -0,0 +1,36 @@
+package io.papermc.paper.command.brigadier;
+
+import java.util.Collection;
+import java.util.Collections;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Implementing this interface allows for easily creating "Bukkit-style" {@code String[] args} commands.
+ * The implementation handles converting the command to a representation compatible with Brigadier on registration, usually in the form of {@literal /commandlabel <greedy_string>}.
+ */
+@ApiStatus.Experimental
+@FunctionalInterface
+public interface BasicCommand {
+
+ /**
+ * Executes the command with the given {@link CommandSourceStack} and arguments.
+ *
+ * @param commandSourceStack the commandSourceStack of the command
+ * @param args the arguments of the command ignoring repeated spaces
+ */
+ @ApiStatus.OverrideOnly
+ void execute(@NotNull CommandSourceStack commandSourceStack, @NotNull String[] args);
+
+ /**
+ * Suggests possible completions for the given command {@link CommandSourceStack} and arguments.
+ *
+ * @param commandSourceStack the commandSourceStack of the command
+ * @param args the arguments of the command including repeated spaces
+ * @return a collection of suggestions
+ */
+ @ApiStatus.OverrideOnly
+ default @NotNull Collection<String> suggest(final @NotNull CommandSourceStack commandSourceStack, final @NotNull String[] args) {
+ return Collections.emptyList();
+ }
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/CommandRegistrationFlag.java b/src/main/java/io/papermc/paper/command/brigadier/CommandRegistrationFlag.java
new file mode 100644
index 0000000000000000000000000000000000000000..7e24babf746de474c8deec4b147e22031e8dadb2
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/CommandRegistrationFlag.java
@@ -0,0 +1,14 @@
+package io.papermc.paper.command.brigadier;
+
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * A {@link CommandRegistrationFlag} is used in {@link Commands} registration for internal purposes.
+ * <p>
+ * A command library may use this to achieve more specific customization on how their commands are registered.
+ * @apiNote Stability of these flags is not promised! This api is not intended for public use.
+ */
+@ApiStatus.Internal
+public enum CommandRegistrationFlag {
+ FLATTEN_ALIASES
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/CommandSourceStack.java b/src/main/java/io/papermc/paper/command/brigadier/CommandSourceStack.java
new file mode 100644
index 0000000000000000000000000000000000000000..54288dbe7185b875a74184f002ee4de4405e91b1
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/CommandSourceStack.java
@@ -0,0 +1,50 @@
+package io.papermc.paper.command.brigadier;
+
+import org.bukkit.Location;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Entity;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * The command source type for Brigadier commands registered using Paper API.
+ * <p>
+ * While the general use case for CommandSourceStack is similar to that of {@link CommandSender}, it provides access to
+ * important additional context for the command execution.
+ * Specifically, commands such as {@literal /execute} may alter the location or executor of the source stack before
+ * passing it to another command.
+ * <p>The {@link CommandSender} returned by {@link #getSender()} may be a "no-op"
+ * instance of {@link CommandSender} in cases where the server either doesn't
+ * exist yet, or no specific sender is available. Methods on such a {@link CommandSender}
+ * will either have no effect or throw an {@link UnsupportedOperationException}.</p>
+ */
+@ApiStatus.NonExtendable
+@ApiStatus.Experimental
+public interface CommandSourceStack {
+
+ /**
+ * Gets the location that this command is being executed at.
+ *
+ * @return a cloned location instance.
+ */
+ @NotNull Location getLocation();
+
+ /**
+ * Gets the command sender that executed this command.
+ * The sender of a command source stack is the one that initiated/triggered the execution of a command.
+ * It differs to {@link #getExecutor()} as the executor can be changed by a command, e.g. {@literal /execute}.
+ *
+ * @return the command sender instance
+ */
+ @NotNull CommandSender getSender();
+
+ /**
+ * Gets the entity that executes this command.
+ * May not always be {@link #getSender()} as the executor of a command can be changed to a different entity
+ * than the one that triggered the command.
+ *
+ * @return entity that executes this command
+ */
+ @Nullable Entity getExecutor();
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/Commands.java b/src/main/java/io/papermc/paper/command/brigadier/Commands.java
new file mode 100644
index 0000000000000000000000000000000000000000..ce60b618de10da7638f5aefa974aebe02600465c
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/Commands.java
@@ -0,0 +1,266 @@
+package io.papermc.paper.command.brigadier;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.arguments.ArgumentType;
+import com.mojang.brigadier.builder.LiteralArgumentBuilder;
+import com.mojang.brigadier.builder.RequiredArgumentBuilder;
+import com.mojang.brigadier.tree.LiteralCommandNode;
+import io.papermc.paper.plugin.bootstrap.BootstrapContext;
+import io.papermc.paper.plugin.bootstrap.PluginBootstrap;
+import io.papermc.paper.plugin.configuration.PluginMeta;
+import io.papermc.paper.plugin.lifecycle.event.LifecycleEventManager;
+import io.papermc.paper.plugin.lifecycle.event.registrar.Registrar;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import org.jetbrains.annotations.Unmodifiable;
+
+/**
+ * The registrar for custom commands. Supports Brigadier commands and {@link BasicCommand}.
+ * <p>
+ * An example of a command being registered is below
+ * <pre>{@code
+ * class YourPluginClass extends JavaPlugin {
+ *
+ * @Override
+ * public void onEnable() {
+ * LifecycleEventManager<Plugin> manager = this.getLifecycleManager();
+ * manager.registerEventHandler(LifecycleEvents.COMMANDS, event -> {
+ * final Commands commands = event.registrar();
+ * commands.register(
+ * Commands.literal("new-command")
+ * .executes(ctx -> {
+ * ctx.getSource().getSender().sendPlainMessage("some message");
+ * return Command.SINGLE_SUCCESS;
+ * })
+ * .build(),
+ * "some bukkit help description string",
+ * List.of("an-alias")
+ * );
+ * });
+ * }
+ * }
+ * }</pre>
+ * <p>
+ * You can also register commands in {@link PluginBootstrap} by getting the {@link LifecycleEventManager} from
+ * {@link BootstrapContext}.
+ * Commands registered in the {@link PluginBootstrap} will be available for datapack's
+ * command function parsing.
+ * Note that commands registered via {@link PluginBootstrap} with the same literals as a vanilla command will override
+ * that command within all loaded datapacks.
+ * </p>
+ * <p>The {@code register} methods that <b>do not</b> have {@link PluginMeta} as a parameter will
+ * implicitly use the {@link PluginMeta} for the plugin that the {@link io.papermc.paper.plugin.lifecycle.event.handler.LifecycleEventHandler}
+ * was registered with.</p>
+ *
+ * @see io.papermc.paper.plugin.lifecycle.event.types.LifecycleEvents#COMMANDS
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface Commands extends Registrar {
+
+ /**
+ * Utility to create a literal command node builder with the correct generic.
+ *
+ * @param literal literal name
+ * @return a new builder instance
+ */
+ static @NotNull LiteralArgumentBuilder<CommandSourceStack> literal(final @NotNull String literal) {
+ return LiteralArgumentBuilder.literal(literal);
+ }
+
+ /**
+ * Utility to create a required argument builder with the correct generic.
+ *
+ * @param name the name of the argument
+ * @param argumentType the type of the argument
+ * @param <T> the generic type of the argument value
+ * @return a new required argument builder
+ */
+ static <T> @NotNull RequiredArgumentBuilder<CommandSourceStack, T> argument(final @NotNull String name, final @NotNull ArgumentType<T> argumentType) {
+ return RequiredArgumentBuilder.argument(name, argumentType);
+ }
+
+ /**
+ * Gets the underlying {@link CommandDispatcher}.
+ *
+ * <p><b>Note:</b> This is a delicate API that must be used with care to ensure a consistent user experience.</p>
+ *
+ * <p>When registering commands, it should be preferred to use the {@link #register(PluginMeta, LiteralCommandNode, String, Collection) register methods}
+ * over directly registering to the dispatcher wherever possible.
+ * {@link #register(PluginMeta, LiteralCommandNode, String, Collection) Register methods} automatically handle
+ * command namespacing, command help, plugin association with commands, and more.</p>
+ *
+ * <p>Example use cases for this method <b>may</b> include:
+ * <ul>
+ * <li>Implementing integration between an external command framework and Paper (although {@link #register(PluginMeta, LiteralCommandNode, String, Collection) register methods} should still be preferred where possible)</li>
+ * <li>Registering new child nodes to an existing plugin command (for example an "addon" plugin to another plugin may want to do this)</li>
+ * <li>Retrieving existing command nodes to build redirects</li>
+ * </ul>
+ *
+ * @return the dispatcher instance
+ */
+ @ApiStatus.Experimental
+ @NotNull CommandDispatcher<CommandSourceStack> getDispatcher();
+
+ /**
+ * Registers a command for the current plugin context.
+ *
+ * <p>Commands have certain overriding behavior:
+ * <ul>
+ * <li>Aliases will not override already existing commands (excluding namespaced ones)</li>
+ * <li>The main command/namespaced label will override already existing commands</li>
+ * </ul>
+ *
+ * @param node the built literal command node
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ default @Unmodifiable @NotNull Set<String> register(final @NotNull LiteralCommandNode<CommandSourceStack> node) {
+ return this.register(node, null, Collections.emptyList());
+ }
+
+ /**
+ * Registers a command for the current plugin context.
+ *
+ * <p>Commands have certain overriding behavior:
+ * <ul>
+ * <li>Aliases will not override already existing commands (excluding namespaced ones)</li>
+ * <li>The main command/namespaced label will override already existing commands</li>
+ * </ul>
+ *
+ * @param node the built literal command node
+ * @param description the help description for the root literal node
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ default @Unmodifiable @NotNull Set<String> register(final @NotNull LiteralCommandNode<CommandSourceStack> node, final @Nullable String description) {
+ return this.register(node, description, Collections.emptyList());
+ }
+
+ /**
+ * Registers a command for the current plugin context.
+ *
+ * <p>Commands have certain overriding behavior:
+ * <ul>
+ * <li>Aliases will not override already existing commands (excluding namespaced ones)</li>
+ * <li>The main command/namespaced label will override already existing commands</li>
+ * </ul>
+ *
+ * @param node the built literal command node
+ * @param aliases a collection of aliases to register the literal node's command to
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ default @Unmodifiable @NotNull Set<String> register(final @NotNull LiteralCommandNode<CommandSourceStack> node, final @NotNull Collection<String> aliases) {
+ return this.register(node, null, aliases);
+ }
+
+ /**
+ * Registers a command for the current plugin context.
+ *
+ * <p>Commands have certain overriding behavior:
+ * <ul>
+ * <li>Aliases will not override already existing commands (excluding namespaced ones)</li>
+ * <li>The main command/namespaced label will override already existing commands</li>
+ * </ul>
+ *
+ * @param node the built literal command node
+ * @param description the help description for the root literal node
+ * @param aliases a collection of aliases to register the literal node's command to
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ @Unmodifiable @NotNull Set<String> register(@NotNull LiteralCommandNode<CommandSourceStack> node, @Nullable String description, @NotNull Collection<String> aliases);
+
+ /**
+ * Registers a command for a plugin.
+ *
+ * <p>Commands have certain overriding behavior:
+ * <ul>
+ * <li>Aliases will not override already existing commands (excluding namespaced ones)</li>
+ * <li>The main command/namespaced label will override already existing commands</li>
+ * </ul>
+ *
+ * @param pluginMeta the owning plugin's meta
+ * @param node the built literal command node
+ * @param description the help description for the root literal node
+ * @param aliases a collection of aliases to register the literal node's command to
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ @Unmodifiable @NotNull Set<String> register(@NotNull PluginMeta pluginMeta, @NotNull LiteralCommandNode<CommandSourceStack> node, @Nullable String description, @NotNull Collection<String> aliases);
+
+ /**
+ * This allows configuring the registration of your command, which is not intended for public use.
+ * See {@link Commands#register(PluginMeta, LiteralCommandNode, String, Collection)} for more information.
+ *
+ * @param pluginMeta the owning plugin's meta
+ * @param node the built literal command node
+ * @param description the help description for the root literal node
+ * @param aliases a collection of aliases to register the literal node's command to
+ * @param flags a collection of registration flags that control registration behaviour.
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ *
+ * @apiNote This method is not guaranteed to be stable as it is not intended for public use.
+ * See {@link CommandRegistrationFlag} for a more indepth explanation of this method's use-case.
+ */
+ @ApiStatus.Internal
+ @Unmodifiable @NotNull Set<String> registerWithFlags(@NotNull PluginMeta pluginMeta, @NotNull LiteralCommandNode<CommandSourceStack> node, @Nullable String description, @NotNull Collection<String> aliases, @NotNull Set<CommandRegistrationFlag> flags);
+
+ /**
+ * Registers a command under the same logic as {@link Commands#register(LiteralCommandNode, String, Collection)}.
+ *
+ * @param label the label of the to-be-registered command
+ * @param basicCommand the basic command instance to register
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ default @Unmodifiable @NotNull Set<String> register(final @NotNull String label, final @NotNull BasicCommand basicCommand) {
+ return this.register(label, null, Collections.emptyList(), basicCommand);
+ }
+
+ /**
+ * Registers a command under the same logic as {@link Commands#register(LiteralCommandNode, String, Collection)}.
+ *
+ * @param label the label of the to-be-registered command
+ * @param description the help description for the root literal node
+ * @param basicCommand the basic command instance to register
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ default @Unmodifiable @NotNull Set<String> register(final @NotNull String label, final @Nullable String description, final @NotNull BasicCommand basicCommand) {
+ return this.register(label, description, Collections.emptyList(), basicCommand);
+ }
+
+ /**
+ * Registers a command under the same logic as {@link Commands#register(LiteralCommandNode, String, Collection)}.
+ *
+ * @param label the label of the to-be-registered command
+ * @param aliases a collection of aliases to register the basic command under.
+ * @param basicCommand the basic command instance to register
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ default @Unmodifiable @NotNull Set<String> register(final @NotNull String label, final @NotNull Collection<String> aliases, final @NotNull BasicCommand basicCommand) {
+ return this.register(label, null, aliases, basicCommand);
+ }
+
+ /**
+ * Registers a command under the same logic as {@link Commands#register(LiteralCommandNode, String, Collection)}.
+ *
+ * @param label the label of the to-be-registered command
+ * @param description the help description for the root literal node
+ * @param aliases a collection of aliases to register the basic command under.
+ * @param basicCommand the basic command instance to register
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ @Unmodifiable @NotNull Set<String> register(@NotNull String label, @Nullable String description, @NotNull Collection<String> aliases, @NotNull BasicCommand basicCommand);
+
+ /**
+ * Registers a command under the same logic as {@link Commands#register(PluginMeta, LiteralCommandNode, String, Collection)}.
+ *
+ * @param pluginMeta the owning plugin's meta
+ * @param label the label of the to-be-registered command
+ * @param description the help description for the root literal node
+ * @param aliases a collection of aliases to register the basic command under.
+ * @param basicCommand the basic command instance to register
+ * @return successfully registered root command labels (including aliases and namespaced variants)
+ */
+ @Unmodifiable @NotNull Set<String> register(@NotNull PluginMeta pluginMeta, @NotNull String label, @Nullable String description, @NotNull Collection<String> aliases, @NotNull BasicCommand basicCommand);
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/MessageComponentSerializer.java b/src/main/java/io/papermc/paper/command/brigadier/MessageComponentSerializer.java
new file mode 100644
index 0000000000000000000000000000000000000000..57061a3dd738416c2045e641b6080dc3f096de1a
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/MessageComponentSerializer.java
@@ -0,0 +1,24 @@
+package io.papermc.paper.command.brigadier;
+
+import com.mojang.brigadier.Message;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.serializer.ComponentSerializer;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * A component serializer for converting between {@link Message} and {@link Component}.
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface MessageComponentSerializer extends ComponentSerializer<Component, Component, Message> {
+
+ /**
+ * A component serializer for converting between {@link Message} and {@link Component}.
+ *
+ * @return serializer instance
+ */
+ static @NotNull MessageComponentSerializer message() {
+ return MessageComponentSerializerHolder.PROVIDER.orElseThrow();
+ }
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/MessageComponentSerializerHolder.java b/src/main/java/io/papermc/paper/command/brigadier/MessageComponentSerializerHolder.java
new file mode 100644
index 0000000000000000000000000000000000000000..2db12952461c92a64505d6646f6f49f824e83050
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/MessageComponentSerializerHolder.java
@@ -0,0 +1,12 @@
+package io.papermc.paper.command.brigadier;
+
+import java.util.Optional;
+import java.util.ServiceLoader;
+import org.jetbrains.annotations.ApiStatus;
+
+@ApiStatus.Internal
+final class MessageComponentSerializerHolder {
+
+ static final Optional<MessageComponentSerializer> PROVIDER = ServiceLoader.load(MessageComponentSerializer.class)
+ .findFirst();
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/ArgumentTypes.java b/src/main/java/io/papermc/paper/command/brigadier/argument/ArgumentTypes.java
new file mode 100644
index 0000000000000000000000000000000000000000..1d5c599d1b9c8bf07720e651bdbe9dadb1335b45
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/ArgumentTypes.java
@@ -0,0 +1,349 @@
+package io.papermc.paper.command.brigadier.argument;
+
+import com.mojang.brigadier.arguments.ArgumentType;
+import io.papermc.paper.command.brigadier.argument.predicate.ItemStackPredicate;
+import io.papermc.paper.command.brigadier.argument.range.DoubleRangeProvider;
+import io.papermc.paper.command.brigadier.argument.range.IntegerRangeProvider;
+import io.papermc.paper.command.brigadier.argument.resolvers.BlockPositionResolver;
+import io.papermc.paper.command.brigadier.argument.resolvers.PlayerProfileListResolver;
+import io.papermc.paper.command.brigadier.argument.resolvers.selector.EntitySelectorArgumentResolver;
+import io.papermc.paper.command.brigadier.argument.resolvers.selector.PlayerSelectorArgumentResolver;
+import io.papermc.paper.entity.LookAnchor;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import java.util.UUID;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.Style;
+import org.bukkit.GameMode;
+import org.bukkit.HeightMap;
+import org.bukkit.NamespacedKey;
+import org.bukkit.World;
+import org.bukkit.block.BlockState;
+import org.bukkit.block.structure.Mirror;
+import org.bukkit.block.structure.StructureRotation;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.scoreboard.Criteria;
+import org.bukkit.scoreboard.DisplaySlot;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+import static io.papermc.paper.command.brigadier.argument.VanillaArgumentProvider.provider;
+
+/**
+ * Vanilla Minecraft includes several custom {@link ArgumentType}s that are recognized by the client.
+ * Many of these argument types include client-side completions and validation, and some include command signing context.
+ *
+ * <p>This class allows creating instances of these types for use in plugin commands, with friendly API result types.</p>
+ *
+ * <p>{@link CustomArgumentType} is provided for customizing parsing or result types server-side, while sending the vanilla argument type to the client.</p>
+ */
+@ApiStatus.Experimental
+public final class ArgumentTypes {
+
+ /**
+ * Represents a selector that can capture any
+ * single entity.
+ *
+ * @return argument that takes one entity
+ */
+ public static @NotNull ArgumentType<EntitySelectorArgumentResolver> entity() {
+ return provider().entity();
+ }
+
+ /**
+ * Represents a selector that can capture multiple
+ * entities.
+ *
+ * @return argument that takes multiple entities
+ */
+ public static @NotNull ArgumentType<EntitySelectorArgumentResolver> entities() {
+ return provider().entities();
+ }
+
+ /**
+ * Represents a selector that can capture a
+ * singular player entity.
+ *
+ * @return argument that takes one player
+ */
+ public static @NotNull ArgumentType<PlayerSelectorArgumentResolver> player() {
+ return provider().player();
+ }
+
+ /**
+ * Represents a selector that can capture multiple
+ * player entities.
+ *
+ * @return argument that takes multiple players
+ */
+ public static @NotNull ArgumentType<PlayerSelectorArgumentResolver> players() {
+ return provider().players();
+ }
+
+ /**
+ * A selector argument that provides a list
+ * of player profiles.
+ *
+ * @return player profile arguments
+ */
+ public static @NotNull ArgumentType<PlayerProfileListResolver> playerProfiles() {
+ return provider().playerProfiles();
+ }
+
+ /**
+ * A block position argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<BlockPositionResolver> blockPosition() {
+ return provider().blockPosition();
+ }
+
+ /**
+ * A blockstate argument which will provide rich parsing for specifying
+ * the specific block variant and then the block entity NBT if applicable.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<BlockState> blockState() {
+ return provider().blockState();
+ }
+
+ /**
+ * An ItemStack argument which provides rich parsing for
+ * specifying item material and item NBT information.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<ItemStack> itemStack() {
+ return provider().itemStack();
+ }
+
+ /**
+ * An item predicate argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<ItemStackPredicate> itemPredicate() {
+ return provider().itemStackPredicate();
+ }
+
+ /**
+ * An argument for parsing {@link NamedTextColor}s.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<NamedTextColor> namedColor() {
+ return provider().namedColor();
+ }
+
+ /**
+ * A component argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<Component> component() {
+ return provider().component();
+ }
+
+ /**
+ * A style argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<Style> style() {
+ return provider().style();
+ }
+
+ /**
+ * A signed message argument.
+ * This argument can be resolved to retrieve the underlying
+ * signed message.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<SignedMessageResolver> signedMessage() {
+ return provider().signedMessage();
+ }
+
+ /**
+ * A scoreboard display slot argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<DisplaySlot> scoreboardDisplaySlot() {
+ return provider().scoreboardDisplaySlot();
+ }
+
+ /**
+ * A namespaced key argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<NamespacedKey> namespacedKey() {
+ return provider().namespacedKey();
+ }
+
+ /**
+ * A key argument.
+ *
+ * @return argument
+ */
+ // include both key types as we are slowly moving to use adventure's key
+ public static @NotNull ArgumentType<Key> key() {
+ return provider().key();
+ }
+
+ /**
+ * An inclusive range of integers that may be unbounded on either end.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<IntegerRangeProvider> integerRange() {
+ return provider().integerRange();
+ }
+
+ /**
+ * An inclusive range of doubles that may be unbounded on either end.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<DoubleRangeProvider> doubleRange() {
+ return provider().doubleRange();
+ }
+
+ /**
+ * A world argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<World> world() {
+ return provider().world();
+ }
+
+ /**
+ * A game mode argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<GameMode> gameMode() {
+ return provider().gameMode();
+ }
+
+ /**
+ * A argument for getting a heightmap type.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<HeightMap> heightMap() {
+ return provider().heightMap();
+ }
+
+ /**
+ * A uuid argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<UUID> uuid() {
+ return provider().uuid();
+ }
+
+ /**
+ * An objective criteria argument
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<Criteria> objectiveCriteria() {
+ return provider().objectiveCriteria();
+ }
+
+ /**
+ * An entity anchor argument.
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<LookAnchor> entityAnchor() {
+ return provider().entityAnchor();
+ }
+
+ /**
+ * A time argument, returning the number of ticks.
+ * <p>Examples:
+ * <ul>
+ * <li> "1d"
+ * <li> "5s"
+ * <li> "2"
+ * <li> "6t"
+ * </ul>
+ *
+ * @return argument
+ */
+ public static @NotNull ArgumentType<Integer> time() {
+ return time(0);
+ }
+
+ /**
+ * A time argument, returning the number of ticks.
+ * <p>Examples:
+ * <ul>
+ * <li> "1d"
+ * <li> "5s"
+ * <li> "2"
+ * <li> "6t"
+ * </ul>
+ *
+ * @param mintime The minimum time required for this argument.
+ * @return argument
+ */
+ public static @NotNull ArgumentType<Integer> time(final int mintime) {
+ return provider().time(mintime);
+ }
+
+ /**
+ * A template mirror argument
+ *
+ * @return argument
+ * @see Mirror
+ */
+ public static @NotNull ArgumentType<Mirror> templateMirror() {
+ return provider().templateMirror();
+ }
+
+ /**
+ * A template rotation argument.
+ *
+ * @return argument
+ * @see StructureRotation
+ */
+ public static @NotNull ArgumentType<StructureRotation> templateRotation() {
+ return provider().templateRotation();
+ }
+
+ /**
+ * An argument for a resource in a {@link org.bukkit.Registry}.
+ *
+ * @param registryKey the registry's key
+ * @return argument
+ * @param <T> the registry value type
+ */
+ public static <T> @NotNull ArgumentType<T> resource(final @NotNull RegistryKey<T> registryKey) {
+ return provider().resource(registryKey);
+ }
+
+ /**
+ * An argument for a typed key for a {@link org.bukkit.Registry}.
+ *
+ * @param registryKey the registry's key
+ * @return argument
+ * @param <T> the registry value type
+ * @see RegistryArgumentExtractor#getTypedKey(com.mojang.brigadier.context.CommandContext, RegistryKey, String)
+ */
+ public static <T> @NotNull ArgumentType<TypedKey<T>> resourceKey(final @NotNull RegistryKey<T> registryKey) {
+ return provider().resourceKey(registryKey);
+ }
+
+ private ArgumentTypes() {
+ }
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/CustomArgumentType.java b/src/main/java/io/papermc/paper/command/brigadier/argument/CustomArgumentType.java
new file mode 100644
index 0000000000000000000000000000000000000000..02acac7f9186677d19c0a62095cc3012bc112961
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/CustomArgumentType.java
@@ -0,0 +1,106 @@
+package io.papermc.paper.command.brigadier.argument;
+
+import com.mojang.brigadier.StringReader;
+import com.mojang.brigadier.arguments.ArgumentType;
+import com.mojang.brigadier.context.CommandContext;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import com.mojang.brigadier.suggestion.Suggestions;
+import com.mojang.brigadier.suggestion.SuggestionsBuilder;
+import java.util.Collection;
+import java.util.concurrent.CompletableFuture;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * An argument type that wraps around a native-to-vanilla argument type.
+ * This argument receives special handling in that the native argument type will
+ * be sent to the client for possible client-side completions and syntax validation.
+ * <p>
+ * When implementing this class, you have to create your own parsing logic from a
+ * {@link StringReader}. If only want to convert from the native type ({@code N}) to the custom
+ * type ({@code T}), implement {@link Converted} instead.
+ *
+ * @param <T> custom type
+ * @param <N> type with an argument native to vanilla Minecraft (from {@link ArgumentTypes})
+ */
+@ApiStatus.Experimental
+public interface CustomArgumentType<T, N> extends ArgumentType<T> {
+
+ /**
+ * Parses the argument into the custom type ({@code T}). Keep in mind
+ * that this parsing will be done on the server. This means that if
+ * you throw a {@link CommandSyntaxException} during parsing, this
+ * will only show up to the user after the user has executed the command
+ * not while they are still entering it.
+ *
+ * @param reader string reader input
+ * @return parsed value
+ * @throws CommandSyntaxException if an error occurs while parsing
+ */
+ @Override
+ @NotNull T parse(final @NotNull StringReader reader) throws CommandSyntaxException;
+
+ /**
+ * Gets the native type that this argument uses,
+ * the type that is sent to the client.
+ *
+ * @return native argument type
+ */
+ @NotNull ArgumentType<N> getNativeType();
+
+ /**
+ * Cannot be controlled by the server.
+ * Returned in cases where there are multiple arguments in the same node.
+ * This helps differentiate and tell the player what the possible inputs are.
+ *
+ * @return client set examples
+ */
+ @Override
+ @ApiStatus.NonExtendable
+ default @NotNull Collection<String> getExamples() {
+ return this.getNativeType().getExamples();
+ }
+
+ /**
+ * Provides a list of suggestions to show to the client.
+ *
+ * @param context command context
+ * @param builder suggestion builder
+ * @return suggestions
+ * @param <S> context type
+ */
+ @Override
+ default <S> @NotNull CompletableFuture<Suggestions> listSuggestions(final @NotNull CommandContext<S> context, final @NotNull SuggestionsBuilder builder) {
+ return ArgumentType.super.listSuggestions(context, builder);
+ }
+
+ /**
+ * An argument type that wraps around a native-to-vanilla argument type.
+ * This argument receives special handling in that the native argument type will
+ * be sent to the client for possible client-side completions and syntax validation.
+ * <p>
+ * The parsed native type will be converted via {@link #convert(Object)}.
+ * Implement {@link CustomArgumentType} if you want to handle parsing the type manually.
+ *
+ * @param <T> custom type
+ * @param <N> type with an argument native to vanilla Minecraft (from {@link ArgumentTypes})
+ */
+ @ApiStatus.Experimental
+ interface Converted<T, N> extends CustomArgumentType<T, N> {
+
+ @ApiStatus.NonExtendable
+ @Override
+ default @NotNull T parse(final @NotNull StringReader reader) throws CommandSyntaxException {
+ return this.convert(this.getNativeType().parse(reader));
+ }
+
+ /**
+ * Converts the value from the native type to the custom argument type.
+ *
+ * @param nativeType native argument provided value
+ * @return converted value
+ * @throws CommandSyntaxException if an exception occurs while parsing
+ */
+ @NotNull T convert(@NotNull N nativeType) throws CommandSyntaxException;
+ }
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/RegistryArgumentExtractor.java b/src/main/java/io/papermc/paper/command/brigadier/argument/RegistryArgumentExtractor.java
new file mode 100644
index 0000000000000000000000000000000000000000..475266144edf0f7dc4e7939abaf9e1705c4e6461
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/RegistryArgumentExtractor.java
@@ -0,0 +1,35 @@
+package io.papermc.paper.command.brigadier.argument;
+
+import com.mojang.brigadier.context.CommandContext;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+/**
+ * Utilities for extracting registry-related arguments from a {@link CommandContext}.
+ */
+public final class RegistryArgumentExtractor {
+
+ /**
+ * Gets a typed key argument from a command context.
+ *
+ * @param context the command context
+ * @param registryKey the registry key for the typed key
+ * @param name the argument name
+ * @return the typed key argument
+ * @param <T> the value type
+ * @param <S> the sender type
+ * @throws IllegalArgumentException if the registry key doesn't match the typed key
+ */
+ @SuppressWarnings("unchecked")
+ public static <T, S> @NonNull TypedKey<T> getTypedKey(final @NonNull CommandContext<S> context, final @NonNull RegistryKey<T> registryKey, final @NonNull String name) {
+ final TypedKey<T> typedKey = context.getArgument(name, TypedKey.class);
+ if (typedKey.registryKey().equals(registryKey)) {
+ return typedKey;
+ }
+ throw new IllegalArgumentException(registryKey + " is not the correct registry for " + typedKey);
+ }
+
+ private RegistryArgumentExtractor() {
+ }
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/SignedMessageResolver.java b/src/main/java/io/papermc/paper/command/brigadier/argument/SignedMessageResolver.java
new file mode 100644
index 0000000000000000000000000000000000000000..159b691e7a1a7066f3e706e80d75ca8f87a3a964
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/SignedMessageResolver.java
@@ -0,0 +1,41 @@
+package io.papermc.paper.command.brigadier.argument;
+
+import com.mojang.brigadier.context.CommandContext;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import java.util.concurrent.CompletableFuture;
+import net.kyori.adventure.chat.SignedMessage;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * A resolver for a {@link SignedMessage}
+ *
+ * @see ArgumentTypes#signedMessage()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface SignedMessageResolver {
+
+ /**
+ * Gets the string content of the message
+ *
+ * @return string content
+ */
+ @NotNull String content();
+
+ /**
+ * Resolves this signed message. This will the {@link CommandContext}
+ * and signed arguments sent by the client.
+ * <p>
+ * In the case that signed message information isn't provided, a "system"
+ * signed message will be returned instead.
+ *
+ * @param argumentName argument name
+ * @param context the command context
+ * @return a completable future for the {@link SignedMessage}
+ * @throws CommandSyntaxException syntax exception
+ */
+ @NotNull CompletableFuture<SignedMessage> resolveSignedMessage(@NotNull String argumentName, @NotNull CommandContext<CommandSourceStack> context) throws CommandSyntaxException;
+
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/VanillaArgumentProvider.java b/src/main/java/io/papermc/paper/command/brigadier/argument/VanillaArgumentProvider.java
new file mode 100644
index 0000000000000000000000000000000000000000..fbbbf324c002dddd868ba2fb56ddda92149ced3c
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/VanillaArgumentProvider.java
@@ -0,0 +1,104 @@
+package io.papermc.paper.command.brigadier.argument;
+
+import com.mojang.brigadier.arguments.ArgumentType;
+import io.papermc.paper.command.brigadier.argument.predicate.ItemStackPredicate;
+import io.papermc.paper.command.brigadier.argument.range.DoubleRangeProvider;
+import io.papermc.paper.command.brigadier.argument.range.IntegerRangeProvider;
+import io.papermc.paper.command.brigadier.argument.resolvers.BlockPositionResolver;
+import io.papermc.paper.command.brigadier.argument.resolvers.PlayerProfileListResolver;
+import io.papermc.paper.command.brigadier.argument.resolvers.selector.EntitySelectorArgumentResolver;
+import io.papermc.paper.command.brigadier.argument.resolvers.selector.PlayerSelectorArgumentResolver;
+import io.papermc.paper.entity.LookAnchor;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import java.util.Optional;
+import java.util.ServiceLoader;
+import java.util.UUID;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.Style;
+import org.bukkit.GameMode;
+import org.bukkit.HeightMap;
+import org.bukkit.NamespacedKey;
+import org.bukkit.World;
+import org.bukkit.block.BlockState;
+import org.bukkit.block.structure.Mirror;
+import org.bukkit.block.structure.StructureRotation;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.scoreboard.Criteria;
+import org.bukkit.scoreboard.DisplaySlot;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jetbrains.annotations.ApiStatus;
+
+@ApiStatus.Internal
+@DefaultQualifier(NonNull.class)
+interface VanillaArgumentProvider {
+
+ Optional<VanillaArgumentProvider> PROVIDER = ServiceLoader.load(VanillaArgumentProvider.class)
+ .findFirst();
+
+ static VanillaArgumentProvider provider() {
+ return PROVIDER.orElseThrow();
+ }
+
+ ArgumentType<EntitySelectorArgumentResolver> entity();
+
+ ArgumentType<PlayerSelectorArgumentResolver> player();
+
+ ArgumentType<EntitySelectorArgumentResolver> entities();
+
+ ArgumentType<PlayerSelectorArgumentResolver> players();
+
+ ArgumentType<PlayerProfileListResolver> playerProfiles();
+
+ ArgumentType<BlockPositionResolver> blockPosition();
+
+ ArgumentType<BlockState> blockState();
+
+ ArgumentType<ItemStack> itemStack();
+
+ ArgumentType<ItemStackPredicate> itemStackPredicate();
+
+ ArgumentType<NamedTextColor> namedColor();
+
+ ArgumentType<Component> component();
+
+ ArgumentType<Style> style();
+
+ ArgumentType<SignedMessageResolver> signedMessage();
+
+ ArgumentType<DisplaySlot> scoreboardDisplaySlot();
+
+ ArgumentType<NamespacedKey> namespacedKey();
+
+ // include both key types as we are slowly moving to use adventure's key
+ ArgumentType<Key> key();
+
+ ArgumentType<IntegerRangeProvider> integerRange();
+
+ ArgumentType<DoubleRangeProvider> doubleRange();
+
+ ArgumentType<World> world();
+
+ ArgumentType<GameMode> gameMode();
+
+ ArgumentType<HeightMap> heightMap();
+
+ ArgumentType<UUID> uuid();
+
+ ArgumentType<Criteria> objectiveCriteria();
+
+ ArgumentType<LookAnchor> entityAnchor();
+
+ ArgumentType<Integer> time(int minTicks);
+
+ ArgumentType<Mirror> templateMirror();
+
+ ArgumentType<StructureRotation> templateRotation();
+
+ <T> ArgumentType<TypedKey<T>> resourceKey(RegistryKey<T> registryKey);
+
+ <T> ArgumentType<T> resource(RegistryKey<T> registryKey);
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/predicate/ItemStackPredicate.java b/src/main/java/io/papermc/paper/command/brigadier/argument/predicate/ItemStackPredicate.java
new file mode 100644
index 0000000000000000000000000000000000000000..ba0cfb3c53f6a5a29b1719ed271a8f13d5f52f24
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/predicate/ItemStackPredicate.java
@@ -0,0 +1,15 @@
+package io.papermc.paper.command.brigadier.argument.predicate;
+
+import java.util.function.Predicate;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * A predicate for ItemStack.
+ *
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#itemPredicate()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface ItemStackPredicate extends Predicate<ItemStack> {
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/range/DoubleRangeProvider.java b/src/main/java/io/papermc/paper/command/brigadier/argument/range/DoubleRangeProvider.java
new file mode 100644
index 0000000000000000000000000000000000000000..82c978ba42a787fd0cdc936e42c8e12ffa4ff8bf
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/range/DoubleRangeProvider.java
@@ -0,0 +1,14 @@
+package io.papermc.paper.command.brigadier.argument.range;
+
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * A provider for a {@link com.google.common.collect.Range} of doubles.
+ *
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#doubleRange()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public non-sealed interface DoubleRangeProvider extends RangeProvider<Double> {
+
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/range/IntegerRangeProvider.java b/src/main/java/io/papermc/paper/command/brigadier/argument/range/IntegerRangeProvider.java
new file mode 100644
index 0000000000000000000000000000000000000000..06ffff68d2652ef8eb40aa723803c24ecd013721
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/range/IntegerRangeProvider.java
@@ -0,0 +1,14 @@
+package io.papermc.paper.command.brigadier.argument.range;
+
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * A provider for a {@link com.google.common.collect.Range} of integers.
+ *
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#integerRange()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public non-sealed interface IntegerRangeProvider extends RangeProvider<Integer> {
+
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/range/RangeProvider.java b/src/main/java/io/papermc/paper/command/brigadier/argument/range/RangeProvider.java
new file mode 100644
index 0000000000000000000000000000000000000000..651dbf15c155f8d8fef25785300d44752c388b37
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/range/RangeProvider.java
@@ -0,0 +1,22 @@
+package io.papermc.paper.command.brigadier.argument.range;
+
+import com.google.common.collect.Range;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * A provider for a range of numbers
+ *
+ * @param <T>
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes
+ */
+@ApiStatus.Experimental
+public sealed interface RangeProvider<T extends Comparable<?>> permits DoubleRangeProvider, IntegerRangeProvider {
+
+ /**
+ * Provides the given range.
+ * @return range
+ */
+ @NotNull
+ Range<T> range();
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/ArgumentResolver.java b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/ArgumentResolver.java
new file mode 100644
index 0000000000000000000000000000000000000000..dea24d91999f78b77fe85221130d87a54edf004a
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/ArgumentResolver.java
@@ -0,0 +1,26 @@
+package io.papermc.paper.command.brigadier.argument.resolvers;
+
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * An {@link ArgumentResolver} is capable of resolving
+ * an argument value using a {@link CommandSourceStack}.
+ *
+ * @param <T> resolved type
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface ArgumentResolver<T> {
+
+ /**
+ * Resolves the argument with the given
+ * command source stack.
+ * @param sourceStack source stack
+ * @return resolved
+ */
+ @NotNull T resolve(@NotNull CommandSourceStack sourceStack) throws CommandSyntaxException;
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/BlockPositionResolver.java b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/BlockPositionResolver.java
new file mode 100644
index 0000000000000000000000000000000000000000..908f40dbf3e52bdfc8577a8916884e9fa4557a7c
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/BlockPositionResolver.java
@@ -0,0 +1,16 @@
+package io.papermc.paper.command.brigadier.argument.resolvers;
+
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import io.papermc.paper.math.BlockPosition;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * An {@link ArgumentResolver} that's capable of resolving
+ * a block position argument value using a {@link CommandSourceStack}.
+ *
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#blockPosition()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface BlockPositionResolver extends ArgumentResolver<BlockPosition> {
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/PlayerProfileListResolver.java b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/PlayerProfileListResolver.java
new file mode 100644
index 0000000000000000000000000000000000000000..89024e67fd81a9cd8a9d1ef5bb78d1c8bcb4fcc5
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/PlayerProfileListResolver.java
@@ -0,0 +1,17 @@
+package io.papermc.paper.command.brigadier.argument.resolvers;
+
+import com.destroystokyo.paper.profile.PlayerProfile;
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import java.util.Collection;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * An {@link ArgumentResolver} that's capable of resolving
+ * argument value using a {@link CommandSourceStack}.
+ *
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#playerProfiles()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface PlayerProfileListResolver extends ArgumentResolver<Collection<PlayerProfile>> {
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/EntitySelectorArgumentResolver.java b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/EntitySelectorArgumentResolver.java
new file mode 100644
index 0000000000000000000000000000000000000000..15d05c28040180a00b16cf05c8b059ce66793fa8
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/EntitySelectorArgumentResolver.java
@@ -0,0 +1,19 @@
+package io.papermc.paper.command.brigadier.argument.resolvers.selector;
+
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import io.papermc.paper.command.brigadier.argument.resolvers.ArgumentResolver;
+import java.util.List;
+import org.bukkit.entity.Entity;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * An {@link ArgumentResolver} that's capable of resolving
+ * an entity selector argument value using a {@link CommandSourceStack}.
+ *
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#entity()
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#entities()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface EntitySelectorArgumentResolver extends SelectorArgumentResolver<List<Entity>> {
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/PlayerSelectorArgumentResolver.java b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/PlayerSelectorArgumentResolver.java
new file mode 100644
index 0000000000000000000000000000000000000000..a973555b7a013df7f9700841f41220c8afa0301e
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/PlayerSelectorArgumentResolver.java
@@ -0,0 +1,19 @@
+package io.papermc.paper.command.brigadier.argument.resolvers.selector;
+
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import io.papermc.paper.command.brigadier.argument.resolvers.ArgumentResolver;
+import java.util.List;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * An {@link ArgumentResolver} that's capable of resolving
+ * a player selector argument value using a {@link CommandSourceStack}.
+ *
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#player()
+ * @see io.papermc.paper.command.brigadier.argument.ArgumentTypes#players()
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface PlayerSelectorArgumentResolver extends SelectorArgumentResolver<List<Player>> {
+}
diff --git a/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/SelectorArgumentResolver.java b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/SelectorArgumentResolver.java
new file mode 100644
index 0000000000000000000000000000000000000000..906ce6eff30ebd9ec3010ce03b471418843e6588
--- /dev/null
+++ b/src/main/java/io/papermc/paper/command/brigadier/argument/resolvers/selector/SelectorArgumentResolver.java
@@ -0,0 +1,17 @@
+package io.papermc.paper.command.brigadier.argument.resolvers.selector;
+
+import io.papermc.paper.command.brigadier.CommandSourceStack;
+import io.papermc.paper.command.brigadier.argument.resolvers.ArgumentResolver;
+import org.jetbrains.annotations.ApiStatus;
+
+/**
+ * An {@link ArgumentResolver} that's capable of resolving
+ * a selector argument value using a {@link CommandSourceStack}.
+ *
+ * @param <T> resolved type
+ * @see <a href="https://minecraft.wiki/w/Target_selectors">Target Selectors</a>
+ */
+@ApiStatus.Experimental
+@ApiStatus.NonExtendable
+public interface SelectorArgumentResolver<T> extends ArgumentResolver<T> {
+}
diff --git a/src/main/java/io/papermc/paper/plugin/lifecycle/event/types/LifecycleEvents.java b/src/main/java/io/papermc/paper/plugin/lifecycle/event/types/LifecycleEvents.java
index 304f978e40e1759bb19704cc5cec399500905195..1fab48593c567fe05b085ac6e12dc22556cf0b92 100644
--- a/src/main/java/io/papermc/paper/plugin/lifecycle/event/types/LifecycleEvents.java
+++ b/src/main/java/io/papermc/paper/plugin/lifecycle/event/types/LifecycleEvents.java
@@ -1,9 +1,11 @@
package io.papermc.paper.plugin.lifecycle.event.types;
+import io.papermc.paper.command.brigadier.Commands;
import io.papermc.paper.plugin.bootstrap.BootstrapContext;
import io.papermc.paper.plugin.lifecycle.event.LifecycleEvent;
import io.papermc.paper.plugin.lifecycle.event.LifecycleEventManager;
import io.papermc.paper.plugin.lifecycle.event.LifecycleEventOwner;
+import io.papermc.paper.plugin.lifecycle.event.registrar.ReloadableRegistrarEvent;
import org.bukkit.plugin.Plugin;
import org.jetbrains.annotations.ApiStatus;
@@ -15,6 +17,13 @@ import org.jetbrains.annotations.ApiStatus;
@ApiStatus.Experimental
public final class LifecycleEvents {
+ /**
+ * This event is for registering commands to the server's brigadier command system. You can register a handler for this event in
+ * {@link org.bukkit.plugin.java.JavaPlugin#onEnable()} or {@link io.papermc.paper.plugin.bootstrap.PluginBootstrap#bootstrap(BootstrapContext)}.
+ * @see Commands an example of a command being registered
+ */
+ public static final LifecycleEventType.Prioritizable<LifecycleEventOwner, ReloadableRegistrarEvent<Commands>> COMMANDS = prioritized("commands", LifecycleEventOwner.class);
+
//<editor-fold desc="helper methods" defaultstate="collapsed">
@ApiStatus.Internal
private static <E extends LifecycleEvent> LifecycleEventType.Monitorable<Plugin, E> plugin(final String name) {
diff --git a/src/main/java/org/bukkit/command/Command.java b/src/main/java/org/bukkit/command/Command.java
index b3a2c274f05156fd603bcc7a68ab41265f2eaf44..c7cdc2ad8a2c43e8c0fcaa1761d3b81726c5ebcb 100644
--- a/src/main/java/org/bukkit/command/Command.java
+++ b/src/main/java/org/bukkit/command/Command.java
@@ -512,4 +512,9 @@ public abstract class Command {
public String toString() {
return getClass().getName() + '(' + name + ')';
}
+
+ // Paper start
+ @org.jetbrains.annotations.ApiStatus.Internal
+ public boolean canBeOverriden() { return false; }
+ // Paper end
}
diff --git a/src/main/java/org/bukkit/command/FormattedCommandAlias.java b/src/main/java/org/bukkit/command/FormattedCommandAlias.java
index 9d4f553c04784cca63901a56a7aea62a5cae1d72..abe256e1e45ce28036da4aa1586715bc8a1a3414 100644
--- a/src/main/java/org/bukkit/command/FormattedCommandAlias.java
+++ b/src/main/java/org/bukkit/command/FormattedCommandAlias.java
@@ -117,7 +117,7 @@ public class FormattedCommandAlias extends Command {
index = formatString.indexOf('$', index);
}
- return formatString;
+ return formatString.trim(); // Paper - Causes an extra space at the end, breaks with brig commands
}
@NotNull
diff --git a/src/main/java/org/bukkit/command/SimpleCommandMap.java b/src/main/java/org/bukkit/command/SimpleCommandMap.java
index b5f9cd2bd191f8b071c6c95706ddbef97d3c244e..5df19bd701c67506689fc7f49d91f99ebfbc83f0 100644
--- a/src/main/java/org/bukkit/command/SimpleCommandMap.java
+++ b/src/main/java/org/bukkit/command/SimpleCommandMap.java
@@ -23,10 +23,14 @@ import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
public class SimpleCommandMap implements CommandMap {
- protected final Map<String, Command> knownCommands = new HashMap<String, Command>();
+ protected final Map<String, Command> knownCommands; // Paper
private final Server server;
- public SimpleCommandMap(@NotNull final Server server) {
+ // Paper start
+ @org.jetbrains.annotations.ApiStatus.Internal
+ public SimpleCommandMap(@NotNull final Server server, Map<String, Command> backing) {
+ this.knownCommands = backing;
+ // Paper end
this.server = server;
setDefaultCommands();
}
@@ -103,7 +107,10 @@ public class SimpleCommandMap implements CommandMap {
*/
private synchronized boolean register(@NotNull String label, @NotNull Command command, boolean isAlias, @NotNull String fallbackPrefix) {
knownCommands.put(fallbackPrefix + ":" + label, command);
- if ((command instanceof BukkitCommand || isAlias) && knownCommands.containsKey(label)) {
+ // Paper start
+ Command known = knownCommands.get(label);
+ if ((command instanceof BukkitCommand || isAlias) && (known != null && !known.canBeOverriden())) {
+ // Paper end
// Request is for an alias/fallback command and it conflicts with
// a existing command or previous alias ignore it
// Note: This will mean it gets removed from the commands list of active aliases
@@ -115,7 +122,9 @@ public class SimpleCommandMap implements CommandMap {
// If the command exists but is an alias we overwrite it, otherwise we return
Command conflict = knownCommands.get(label);
if (conflict != null && conflict.getLabel().equals(label)) {
+ if (!conflict.canBeOverriden()) { // Paper
return false;
+ } // Paper
}
if (!isAlias) {
diff --git a/src/main/java/org/bukkit/command/defaults/ReloadCommand.java b/src/main/java/org/bukkit/command/defaults/ReloadCommand.java
index 3ec32b46264cfff857b50129b5e0fa5584943ec6..bdfe68b386b5ca2878475e548d3c9a3808fce848 100644
--- a/src/main/java/org/bukkit/command/defaults/ReloadCommand.java
+++ b/src/main/java/org/bukkit/command/defaults/ReloadCommand.java
@@ -18,6 +18,9 @@ public class ReloadCommand extends BukkitCommand {
this.setAliases(Arrays.asList("rl"));
}
+ @org.jetbrains.annotations.ApiStatus.Internal // Paper
+ public static final String RELOADING_DISABLED_MESSAGE = "A lifecycle event handler has been registered which makes reloading plugins not possible"; // Paper
+
@Override
public boolean execute(@NotNull CommandSender sender, @NotNull String currentAlias, @NotNull String[] args) { // Paper
if (!testPermission(sender)) return true;
@@ -51,7 +54,16 @@ public class ReloadCommand extends BukkitCommand {
Command.broadcastCommandMessage(sender, ChatColor.RED + "Please note that this command is not supported and may cause issues when using some plugins.");
Command.broadcastCommandMessage(sender, ChatColor.RED + "If you encounter any issues please use the /stop command to restart your server.");
- Bukkit.reload();
+ // Paper start - lifecycle events
+ try {
+ Bukkit.reload();
+ } catch (final IllegalStateException ex) {
+ if (ex.getMessage().equals(RELOADING_DISABLED_MESSAGE)) {
+ Command.broadcastCommandMessage(sender, ChatColor.RED + RELOADING_DISABLED_MESSAGE);
+ return true;
+ }
+ }
+ // Paper end - lifecycle events
Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Reload complete.");
return true;
diff --git a/src/main/java/org/bukkit/event/server/TabCompleteEvent.java b/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
index b43c3cb5c88eada186d6f81712c244aaa18fb53e..ea26cb90d988d693f26e37229fbdee975c0b11f4 100644
--- a/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
+++ b/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
@@ -18,6 +18,8 @@ import org.jetbrains.annotations.NotNull;
* themselves. Plugins wishing to remove commands from tab completion are
* advised to ensure the client does not have permission for the relevant
* commands, or use {@link PlayerCommandSendEvent}.
+ * @apiNote Only called for bukkit API commands {@link org.bukkit.command.Command} and
+ * {@link org.bukkit.command.CommandExecutor} and not for brigadier commands ({@link io.papermc.paper.command.brigadier.Commands}).
*/
public class TabCompleteEvent extends Event implements Cancellable {