mirror of
https://github.com/PaperMC/Paper.git
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604 lines
21 KiB
Diff
604 lines
21 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
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Date: Sun, 26 Nov 2017 13:17:09 -0500
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Subject: [PATCH] AsyncTabCompleteEvent
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Let plugins be able to control tab completion of commands and chat async.
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This will be useful for frameworks like ACF so we can define async safe completion handlers,
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and avoid going to main for tab completions.
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Especially useful if you need to query a database in order to obtain the results for tab
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completion, such as offline players.
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Co-authored-by: Aikar <aikar@aikar.co>
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diff --git a/src/main/java/com/destroystokyo/paper/event/server/AsyncTabCompleteEvent.java b/src/main/java/com/destroystokyo/paper/event/server/AsyncTabCompleteEvent.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..e0847b6f0202bd8267c537f72a5e8c8cb7c6b1db
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/event/server/AsyncTabCompleteEvent.java
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@@ -0,0 +1,339 @@
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+/*
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+ * Copyright (c) 2017 Daniel Ennis (Aikar) MIT License
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining
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+ * a copy of this software and associated documentation files (the
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+ * "Software"), to deal in the Software without restriction, including
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+ * without limitation the rights to use, copy, modify, merge, publish,
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+ * distribute, sublicense, and/or sell copies of the Software, and to
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+ * permit persons to whom the Software is furnished to do so, subject to
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+ * the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be
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+ * included in all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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+ */
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+
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+package com.destroystokyo.paper.event.server;
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+
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+import com.google.common.base.Preconditions;
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+import io.papermc.paper.util.TransformingRandomAccessList;
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+import net.kyori.adventure.text.Component;
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+import net.kyori.examination.Examinable;
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+import net.kyori.examination.ExaminableProperty;
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+import net.kyori.examination.string.StringExaminer;
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+import org.bukkit.Location;
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+import org.bukkit.command.Command;
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+import org.bukkit.command.CommandSender;
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+import org.bukkit.event.Cancellable;
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+import org.bukkit.event.Event;
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+import org.bukkit.event.HandlerList;
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+
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+import java.util.ArrayList;
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+import java.util.List;
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+import java.util.Objects;
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+import java.util.stream.Stream;
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+import org.jetbrains.annotations.ApiStatus;
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+import org.jetbrains.annotations.NotNull;
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+import org.jetbrains.annotations.Nullable;
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+
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+/**
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+ * Allows plugins to compute tab completion results asynchronously.
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+ * <p>
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+ * If this event provides completions, then the standard synchronous process
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+ * will not be fired to populate the results.
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+ * However, the synchronous TabCompleteEvent will fire with the Async results.
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+ * <p>
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+ * Only 1 process will be allowed to provide completions, the Async Event, or the standard process.
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+ */
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+public class AsyncTabCompleteEvent extends Event implements Cancellable {
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+
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+ private static final HandlerList HANDLER_LIST = new HandlerList();
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+
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+ @NotNull private final CommandSender sender;
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+ @NotNull private final String buffer;
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+ private final boolean isCommand;
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+ @Nullable
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+ private final Location location;
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+ private final List<Completion> completions = new ArrayList<>();
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+ private final List<String> stringCompletions = new TransformingRandomAccessList<>(
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+ this.completions,
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+ Completion::suggestion,
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+ Completion::completion
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+ );
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+ private boolean handled;
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+ private boolean cancelled;
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+
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+ @ApiStatus.Internal
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+ public AsyncTabCompleteEvent(@NotNull CommandSender sender, @NotNull String buffer, boolean isCommand, @Nullable Location loc) {
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+ super(true);
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+ this.sender = sender;
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+ this.buffer = buffer;
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+ this.isCommand = isCommand;
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+ this.location = loc;
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+ }
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+
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+ @Deprecated
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+ @ApiStatus.Internal
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+ public AsyncTabCompleteEvent(@NotNull CommandSender sender, @NotNull List<String> completions, @NotNull String buffer, boolean isCommand, @Nullable Location loc) {
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+ super(true);
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+ this.sender = sender;
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+ this.completions.addAll(fromStrings(completions));
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+ this.buffer = buffer;
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+ this.isCommand = isCommand;
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+ this.location = loc;
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+ }
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+
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+ /**
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+ * Get the sender completing this command.
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+ *
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+ * @return the {@link CommandSender} instance
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+ */
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+ @NotNull
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+ public CommandSender getSender() {
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+ return this.sender;
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+ }
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+
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+ /**
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+ * The list of completions which will be offered to the sender, in order.
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+ * This list is mutable and reflects what will be offered.
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+ * <p>
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+ * If this collection is not empty after the event is fired, then
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+ * the standard process of calling {@link Command#tabComplete(CommandSender, String, String[])}
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+ * or current player names will not be called.
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+ *
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+ * @return a list of offered completions
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+ */
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+ @NotNull
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+ public List<String> getCompletions() {
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+ return this.stringCompletions;
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+ }
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+
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+ /**
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+ * Set the completions offered, overriding any already set.
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+ * If this collection is not empty after the event is fired, then
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+ * the standard process of calling {@link Command#tabComplete(CommandSender, String, String[])}
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+ * or current player names will not be called.
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+ * <p>
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+ * The passed collection will be cloned to a new {@code List}. You must call {{@link #getCompletions()}} to mutate from here
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+ *
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+ * @param completions the new completions
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+ */
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+ public void setCompletions(@NotNull List<String> completions) {
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+ Preconditions.checkArgument(completions != null, "Completions list cannot be null");
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+ if (completions == this.stringCompletions) {
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+ return;
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+ }
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+ this.completions.clear();
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+ this.completions.addAll(fromStrings(completions));
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+ }
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+
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+ /**
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+ * The list of {@link Completion completions} which will be offered to the sender, in order.
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+ * This list is mutable and reflects what will be offered.
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+ * <p>
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+ * If this collection is not empty after the event is fired, then
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+ * the standard process of calling {@link Command#tabComplete(CommandSender, String, String[])}
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+ * or current player names will not be called.
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+ *
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+ * @return a list of offered completions
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+ */
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+ public @NotNull List<Completion> completions() {
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+ return this.completions;
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+ }
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+
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+ /**
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+ * Set the {@link Completion completions} offered, overriding any already set.
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+ * If this collection is not empty after the event is fired, then
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+ * the standard process of calling {@link Command#tabComplete(CommandSender, String, String[])}
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+ * or current player names will not be called.
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+ * <p>
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+ * The passed collection will be cloned to a new {@code List}. You must call {@link #completions()} to mutate from here
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+ *
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+ * @param newCompletions the new completions
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+ */
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+ public void completions(final @NotNull List<Completion> newCompletions) {
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+ Preconditions.checkArgument(newCompletions != null, "new completions cannot be null");
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+ this.completions.clear();
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+ this.completions.addAll(newCompletions);
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+ }
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+
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+ /**
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+ * Return the entire buffer which formed the basis of this completion.
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+ *
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+ * @return command buffer, as entered
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+ */
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+ @NotNull
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+ public String getBuffer() {
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+ return this.buffer;
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+ }
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+
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+ /**
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+ * @return {@code true} if it is a command being tab completed, {@code false} if it is a chat message.
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+ */
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+ public boolean isCommand() {
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+ return this.isCommand;
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+ }
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+
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+ /**
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+ * @return The position looked at by the sender, or {@code null} if none
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+ */
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+ @Nullable
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+ public Location getLocation() {
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+ return this.location;
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+ }
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+
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+ /**
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+ * If {@code true}, the standard process of calling {@link Command#tabComplete(CommandSender, String, String[])}
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+ * or current player names will not be called.
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+ *
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+ * @return Is completions considered handled. Always {@code true} if completions is not empty.
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+ */
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+ public boolean isHandled() {
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+ return !this.completions.isEmpty() || this.handled;
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+ }
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+
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+ /**
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+ * Sets whether to consider the completion request handled.
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+ * If {@code true}, the standard process of calling {@link Command#tabComplete(CommandSender, String, String[])}
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+ * or current player names will not be called.
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+ *
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+ * @param handled if this completion should be marked as being handled
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+ */
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+ public void setHandled(boolean handled) {
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+ this.handled = handled;
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+ }
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+
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+ @Override
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+ public boolean isCancelled() {
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+ return this.cancelled;
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+ }
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+
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+ /**
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+ * {@inheritDoc}
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+ * <br>
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+ * Will provide no completions, and will not fire the synchronous process
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+ */
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+ @Override
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+ public void setCancelled(boolean cancel) {
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+ this.cancelled = cancel;
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+ }
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+
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+ @NotNull
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+ public HandlerList getHandlers() {
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+ return HANDLER_LIST;
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+ }
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+
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+ @NotNull
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+ public static HandlerList getHandlerList() {
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+ return HANDLER_LIST;
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+ }
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+
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+ private static @NotNull List<Completion> fromStrings(final @NotNull List<String> suggestions) {
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+ final List<Completion> list = new ArrayList<>(suggestions.size());
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+ for (final String suggestion : suggestions) {
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+ list.add(new CompletionImpl(suggestion, null));
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+ }
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+ return list;
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+ }
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+
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+ /**
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+ * A rich tab completion, consisting of a string suggestion, and a nullable {@link Component} tooltip.
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+ */
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+ public interface Completion extends Examinable {
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+
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+ /**
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+ * Get the suggestion string for this {@link Completion}.
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+ *
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+ * @return suggestion string
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+ */
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+ @NotNull String suggestion();
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+
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+ /**
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+ * Get the suggestion tooltip for this {@link Completion}.
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+ *
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+ * @return tooltip component
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+ */
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+ @Nullable Component tooltip();
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+
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+ @Override
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+ default @NotNull Stream<? extends ExaminableProperty> examinableProperties() {
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+ return Stream.of(ExaminableProperty.of("suggestion", this.suggestion()), ExaminableProperty.of("tooltip", this.tooltip()));
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+ }
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+
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+ /**
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+ * Create a new {@link Completion} from a suggestion string.
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+ *
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+ * @param suggestion suggestion string
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+ * @return new completion instance
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+ */
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+ static @NotNull Completion completion(final @NotNull String suggestion) {
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+ return new CompletionImpl(suggestion, null);
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+ }
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+
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+ /**
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+ * Create a new {@link Completion} from a suggestion string and a tooltip {@link Component}.
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+ * <p>
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+ * If the provided component is {@code null}, the suggestion will not have a tooltip.
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+ *
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+ * @param suggestion suggestion string
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+ * @param tooltip tooltip component, or {@code null}
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+ * @return new completion instance
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+ */
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+ static @NotNull Completion completion(final @NotNull String suggestion, final @Nullable Component tooltip) {
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+ return new CompletionImpl(suggestion, tooltip);
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+ }
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+ }
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+
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+ @ApiStatus.Internal
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+ static final class CompletionImpl implements Completion {
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+
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+ private final String suggestion;
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+ private final Component tooltip;
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+
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+ CompletionImpl(final @NotNull String suggestion, final @Nullable Component tooltip) {
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+ this.suggestion = suggestion;
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+ this.tooltip = tooltip;
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+ }
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+
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+ @Override
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+ public @NotNull String suggestion() {
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+ return this.suggestion;
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+ }
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+
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+ @Override
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+ public @Nullable Component tooltip() {
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+ return this.tooltip;
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+ }
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+
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+ @Override
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+ public boolean equals(final @Nullable Object o) {
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+ if (this == o) {
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+ return true;
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+ }
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+ if (o == null || this.getClass() != o.getClass()) {
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+ return false;
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+ }
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+ final CompletionImpl that = (CompletionImpl) o;
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+ return this.suggestion.equals(that.suggestion)
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+ && Objects.equals(this.tooltip, that.tooltip);
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+ }
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+
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+ @Override
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+ public int hashCode() {
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+ return Objects.hash(this.suggestion, this.tooltip);
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+ }
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+
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+ @Override
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+ public @NotNull String toString() {
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+ return StringExaminer.simpleEscaping().examine(this);
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+ }
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+ }
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+}
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diff --git a/src/main/java/io/papermc/paper/util/TransformingRandomAccessList.java b/src/main/java/io/papermc/paper/util/TransformingRandomAccessList.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..6f560a51277ccbd46a9142cfa057d276118c1c7b
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/util/TransformingRandomAccessList.java
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@@ -0,0 +1,169 @@
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+package io.papermc.paper.util;
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+
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+import org.checkerframework.checker.nullness.qual.NonNull;
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+import org.jetbrains.annotations.NotNull;
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+
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+import java.util.AbstractList;
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+import java.util.Iterator;
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+import java.util.List;
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+import java.util.ListIterator;
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+import java.util.RandomAccess;
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+import java.util.function.Function;
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+import java.util.function.Predicate;
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+
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+import static com.google.common.base.Preconditions.checkNotNull;
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+
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+/**
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+ * Modified version of the Guava class with the same name to support add operations.
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+ *
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+ * @param <F> backing list element type
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+ * @param <T> transformed list element type
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+ */
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+public final class TransformingRandomAccessList<F, T> extends AbstractList<T> implements RandomAccess {
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+ final List<F> fromList;
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+ final Function<? super F, ? extends T> toFunction;
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+ final Function<? super T, ? extends F> fromFunction;
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+
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+ /**
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+ * Create a new {@link TransformingRandomAccessList}.
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+ *
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+ * @param fromList backing list
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+ * @param toFunction function mapping backing list element type to transformed list element type
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+ * @param fromFunction function mapping transformed list element type to backing list element type
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+ */
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+ public TransformingRandomAccessList(
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+ final @NonNull List<F> fromList,
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+ final @NonNull Function<? super F, ? extends T> toFunction,
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+ final @NonNull Function<? super T, ? extends F> fromFunction
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+ ) {
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+ this.fromList = checkNotNull(fromList);
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+ this.toFunction = checkNotNull(toFunction);
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+ this.fromFunction = checkNotNull(fromFunction);
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+ }
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+
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+ @Override
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+ public void clear() {
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+ this.fromList.clear();
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+ }
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+
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+ @Override
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+ public T get(int index) {
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+ return this.toFunction.apply(this.fromList.get(index));
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+ }
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+
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+ @Override
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+ public @NotNull Iterator<T> iterator() {
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+ return this.listIterator();
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+ }
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+
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+ @Override
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+ public @NotNull ListIterator<T> listIterator(int index) {
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+ return new TransformedListIterator<F, T>(this.fromList.listIterator(index)) {
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+ @Override
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+ T transform(F from) {
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+ return TransformingRandomAccessList.this.toFunction.apply(from);
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+ }
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+
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+ @Override
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+ F transformBack(T from) {
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+ return TransformingRandomAccessList.this.fromFunction.apply(from);
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+ }
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+ };
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+ }
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+
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+ @Override
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+ public boolean isEmpty() {
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+ return this.fromList.isEmpty();
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+ }
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+
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+ @Override
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+ public boolean removeIf(Predicate<? super T> filter) {
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+ checkNotNull(filter);
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+ return this.fromList.removeIf(element -> filter.test(this.toFunction.apply(element)));
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+ }
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+
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+ @Override
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+ public T remove(int index) {
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+ return this.toFunction.apply(this.fromList.remove(index));
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+ }
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+
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+ @Override
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+ public int size() {
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+ return this.fromList.size();
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+ }
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+
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+ @Override
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+ public T set(int i, T t) {
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+ return this.toFunction.apply(this.fromList.set(i, this.fromFunction.apply(t)));
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+ }
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+
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+ @Override
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+ public void add(int i, T t) {
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+ this.fromList.add(i, this.fromFunction.apply(t));
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+ }
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+
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+ static abstract class TransformedListIterator<F, T> implements ListIterator<T>, Iterator<T> {
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+ final Iterator<F> backingIterator;
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+
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+ TransformedListIterator(ListIterator<F> backingIterator) {
|
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+ this.backingIterator = checkNotNull((Iterator<F>) backingIterator);
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+ }
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+
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+ private ListIterator<F> backingIterator() {
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+ return cast(this.backingIterator);
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+ }
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+
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+ static <A> ListIterator<A> cast(Iterator<A> iterator) {
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+ return (ListIterator<A>) iterator;
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+ }
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+
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+ @Override
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+ public final boolean hasPrevious() {
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+ return this.backingIterator().hasPrevious();
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+ }
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+
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+ @Override
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+ public final T previous() {
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+ return this.transform(this.backingIterator().previous());
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+ }
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+
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+ @Override
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+ public final int nextIndex() {
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+ return this.backingIterator().nextIndex();
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+ }
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+
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+ @Override
|
|
+ public final int previousIndex() {
|
|
+ return this.backingIterator().previousIndex();
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public void set(T element) {
|
|
+ this.backingIterator().set(this.transformBack(element));
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public void add(T element) {
|
|
+ this.backingIterator().add(this.transformBack(element));
|
|
+ }
|
|
+
|
|
+ abstract T transform(F from);
|
|
+
|
|
+ abstract F transformBack(T to);
|
|
+
|
|
+ @Override
|
|
+ public final boolean hasNext() {
|
|
+ return this.backingIterator.hasNext();
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public final T next() {
|
|
+ return this.transform(this.backingIterator.next());
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public final void remove() {
|
|
+ this.backingIterator.remove();
|
|
+ }
|
|
+ }
|
|
+}
|
|
diff --git a/src/main/java/org/bukkit/event/server/TabCompleteEvent.java b/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
|
|
index 270e6d8ad4358baa256cee5f16cff281f063ce3b..4a3451af454295ac3e1b688e6665cad9fc594c82 100644
|
|
--- a/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
|
|
+++ b/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
|
|
@@ -29,6 +29,13 @@ public class TabCompleteEvent extends Event implements Cancellable {
|
|
private boolean cancelled;
|
|
|
|
public TabCompleteEvent(@NotNull CommandSender sender, @NotNull String buffer, @NotNull List<String> completions) {
|
|
+ // Paper start
|
|
+ this(sender, buffer, completions, sender instanceof org.bukkit.command.ConsoleCommandSender || buffer.startsWith("/"), null);
|
|
+ }
|
|
+ public TabCompleteEvent(@NotNull CommandSender sender, @NotNull String buffer, @NotNull List<String> completions, boolean isCommand, @org.jetbrains.annotations.Nullable org.bukkit.Location location) {
|
|
+ this.isCommand = isCommand;
|
|
+ this.loc = location;
|
|
+ // Paper end
|
|
Preconditions.checkArgument(sender != null, "sender");
|
|
Preconditions.checkArgument(buffer != null, "buffer");
|
|
Preconditions.checkArgument(completions != null, "completions");
|
|
@@ -69,14 +76,35 @@ public class TabCompleteEvent extends Event implements Cancellable {
|
|
return completions;
|
|
}
|
|
|
|
+ // Paper start
|
|
+ private final boolean isCommand;
|
|
+ private final org.bukkit.Location loc;
|
|
+ /**
|
|
+ * @return True if it is a command being tab completed, false if it is a chat message.
|
|
+ */
|
|
+ public boolean isCommand() {
|
|
+ return isCommand;
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * @return The position looked at by the sender, or null if none
|
|
+ */
|
|
+ @org.jetbrains.annotations.Nullable
|
|
+ public org.bukkit.Location getLocation() {
|
|
+ return loc;
|
|
+ }
|
|
+ // Paper end
|
|
+
|
|
/**
|
|
* Set the completions offered, overriding any already set.
|
|
*
|
|
+ * The passed collection will be cloned to a new List. You must call {{@link #getCompletions()}} to mutate from here
|
|
+ *
|
|
* @param completions the new completions
|
|
*/
|
|
public void setCompletions(@NotNull List<String> completions) {
|
|
Preconditions.checkArgument(completions != null);
|
|
- this.completions = completions;
|
|
+ this.completions = new java.util.ArrayList<>(completions); // Paper
|
|
}
|
|
|
|
@Override
|
|
diff --git a/src/test/java/org/bukkit/AnnotationTest.java b/src/test/java/org/bukkit/AnnotationTest.java
|
|
index abadff47166722fdc756afdbc6ac7242b6bd4fb0..88f1ca89fa640a686231b8eec87e70419b2d73ef 100644
|
|
--- a/src/test/java/org/bukkit/AnnotationTest.java
|
|
+++ b/src/test/java/org/bukkit/AnnotationTest.java
|
|
@@ -48,6 +48,8 @@ public class AnnotationTest {
|
|
// Generic functional interface
|
|
"org/bukkit/util/Consumer",
|
|
// Paper start
|
|
+ "io/papermc/paper/util/TransformingRandomAccessList",
|
|
+ "io/papermc/paper/util/TransformingRandomAccessList$TransformedListIterator",
|
|
// Timings history is broken in terms of nullability due to guavas Function defining that the param is NonNull
|
|
"co/aikar/timings/TimingHistory$2",
|
|
"co/aikar/timings/TimingHistory$2$1",
|