From cf296d4bb22ca57d81519c52326e20527fbf6b95 Mon Sep 17 00:00:00 2001
From: Miterosan <miterosan@gmail.com>
Date: Tue, 7 Nov 2017 23:10:41 +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 e73e056cb4..f231342234 100644
--- a/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
+++ b/osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
@@ -163,6 +163,11 @@ namespace osu.Game.Beatmaps.Formats
 
         private void handleMetadata(Beatmap beatmap, string line)
         {
+            if (beatmap == null)
+                throw new ArgumentNullException(nameof(beatmap));
+            if (line == null)
+                throw new ArgumentNullException(nameof(line));
+
             var pair = splitKeyVal(line, ':');
 
             var metadata = beatmap.BeatmapInfo.Metadata;