From 34083baa4dc596ea1816af9d254eb816e8fe0a14 Mon Sep 17 00:00:00 2001
From: Miterosan <miterosan@gmail.com>
Date: Tue, 7 Nov 2017 23:11:04 +0100
Subject: [PATCH] beatmap and line can not be null in OsuLegacyDecoder.cs

---
 osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs b/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
index d240b7669c..0d9d875f86 100644
--- a/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
+++ b/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
@@ -264,6 +264,11 @@ private void decodeVariables(ref string line)
 
         private void handleEvents(Beatmap beatmap, string line, ref StoryboardSprite storyboardSprite, ref CommandTimelineGroup timelineGroup)
         {
+            if (line == null)
+                throw new ArgumentNullException(nameof(line));
+            if (beatmap == null)
+                throw new ArgumentNullException(nameof(beatmap));
+
             var depth = 0;
             while (line.StartsWith(" ") || line.StartsWith("_"))
             {