From 2cad7166b1df41eac9ee7fcbb5065ac037015473 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Tue, 5 Mar 2019 09:30:22 +0000
Subject: [PATCH] GeneratorManager::getGeneratorName() now throws
 InvalidArgumentException on unregistered generator classes the old behaviour
 allowed a bug in the world converter to go unnoticed.

---
 src/pocketmine/level/generator/GeneratorManager.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/pocketmine/level/generator/GeneratorManager.php b/src/pocketmine/level/generator/GeneratorManager.php
index fbf8fb532..edd38d599 100644
--- a/src/pocketmine/level/generator/GeneratorManager.php
+++ b/src/pocketmine/level/generator/GeneratorManager.php
@@ -91,6 +91,7 @@ final class GeneratorManager{
 	 * @param string $class Fully qualified name of class that extends \pocketmine\level\generator\Generator
 	 *
 	 * @return string
+	 * @throws \InvalidArgumentException if the class type cannot be matched to a known alias
 	 */
 	public static function getGeneratorName(string $class) : string{
 		foreach(self::$list as $name => $c){
@@ -99,7 +100,7 @@ final class GeneratorManager{
 			}
 		}
 
-		return "unknown";
+		throw new \InvalidArgumentException("Generator class $class is not registered");
 	}
 
 	private function __construct(){