testserver/Spigot-API-Patches/0016-Fix-infinite-recursion...

94 lines
4.0 KiB
Diff

From 3217d06837310e286c73e39f4d73ef7b19716274 Mon Sep 17 00:00:00 2001
From: DemonWav <demonwav@gmail.com>
Date: Sun, 31 Jan 2016 01:20:21 -0600
Subject: [PATCH] Fix infinite recursion with plugin tab completers
diff --git a/src/main/java/org/bukkit/command/Command.java b/src/main/java/org/bukkit/command/Command.java
index c126a1e..f0860a9 100644
--- a/src/main/java/org/bukkit/command/Command.java
+++ b/src/main/java/org/bukkit/command/Command.java
@@ -86,28 +86,16 @@ public abstract class Command {
* @throws IllegalArgumentException if sender, alias, or args is null
*/
public List<String> tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
- Validate.notNull(sender, "Sender cannot be null");
- Validate.notNull(args, "Arguments cannot be null");
- Validate.notNull(alias, "Alias cannot be null");
-
- if (args.length == 0) {
- return ImmutableList.of();
- }
-
- String lastWord = args[args.length - 1];
-
- Player senderPlayer = sender instanceof Player ? (Player) sender : null;
-
- ArrayList<String> matchedPlayers = new ArrayList<String>();
- for (Player player : sender.getServer().getOnlinePlayers()) {
- String name = player.getName();
- if ((senderPlayer == null || senderPlayer.canSee(player)) && StringUtil.startsWithIgnoreCase(name, lastWord)) {
- matchedPlayers.add(name);
- }
- }
-
- Collections.sort(matchedPlayers, String.CASE_INSENSITIVE_ORDER);
- return matchedPlayers;
+ // PaperSpigot - location tab-completes
+ /*
+ To prevent infinite recursion, this implementation has been moved down to
+ tabCompleteImpl(CommandSender sender, String alias, String[] args). The infinite recursion happens when
+ a subclass calls super.tabComplete(CommandSender sender, String alias, String[] args, Location location),
+ which would end up calling tabComplete(CommandSender sender, String alias, String[] args), but rather than
+ this method, it would call the overridden method, which would call super.tabComplete again, etc. To prevent
+ this we move the actual main logic to a separate private method.
+ */
+ return tabCompleteImpl(sender, alias, args);
}
// PaperSpigot start - location tab-completes
@@ -130,7 +118,32 @@ public abstract class Command {
*/
public List<String> tabComplete(CommandSender sender, String alias, String[] args, Location location) throws IllegalArgumentException {
// Simply default to the standard tab-complete, subclasses can override this if needed
- return tabComplete(sender, alias, args);
+ return tabCompleteImpl(sender, alias, args);
+ }
+
+ private List<String> tabCompleteImpl(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
+ Validate.notNull(sender, "Sender cannot be null");
+ Validate.notNull(args, "Arguments cannot be null");
+ Validate.notNull(alias, "Alias cannot be null");
+
+ if (args.length == 0) {
+ return ImmutableList.of();
+ }
+
+ String lastWord = args[args.length - 1];
+
+ Player senderPlayer = sender instanceof Player ? (Player) sender : null;
+
+ ArrayList<String> matchedPlayers = new ArrayList<String>();
+ for (Player player : sender.getServer().getOnlinePlayers()) {
+ String name = player.getName();
+ if ((senderPlayer == null || senderPlayer.canSee(player)) && StringUtil.startsWithIgnoreCase(name, lastWord)) {
+ matchedPlayers.add(name);
+ }
+ }
+
+ Collections.sort(matchedPlayers, String.CASE_INSENSITIVE_ORDER);
+ return matchedPlayers;
}
// PaperSpigot end
@@ -447,4 +460,4 @@ public abstract class Command {
public String toString() {
return getClass().getName() + '(' + name + ')';
}
-}
+}
\ No newline at end of file
--
1.9.1