Add code analysis attributes where appropriate

2 files changed, 10 insertions, 8 deletions

diff --git a/Emby.Naming/Video/CleanStringParser.cs b/Emby.Naming/Video/CleanStringParser.cs
index bd7553a91..4eef3ebc5 100644
--- a/Emby.Naming/Video/CleanStringParser.cs
+++ b/Emby.Naming/Video/CleanStringParser.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Text.RegularExpressions;
 
 namespace Emby.Naming.Video
@@ -16,8 +17,14 @@ namespace Emby.Naming.Video
         /// <param name="expressions">List of regex to parse name and year from.</param>
         /// <param name="newName">Parsing result string.</param>
         /// <returns>True if parsing was successful.</returns>
-        public static bool TryClean(string name, IReadOnlyList<Regex> expressions, out ReadOnlySpan<char> newName)
+        public static bool TryClean([NotNullWhen(true)] string? name, IReadOnlyList<Regex> expressions, out ReadOnlySpan<char> newName)
         {
+            if (string.IsNullOrEmpty(name))
+            {
+                newName = ReadOnlySpan<char>.Empty;
+                return false;
+            }
+
             var len = expressions.Count;
             for (int i = 0; i < len; i++)
             {
@@ -33,12 +40,6 @@ namespace Emby.Naming.Video
 
         private static bool TryClean(string name, Regex expression, out ReadOnlySpan<char> newName)
         {
-            if (string.IsNullOrEmpty(name))
-            {
-                newName = ReadOnlySpan<char>.Empty;
-                return false;
-            }
-
             var match = expression.Match(name);
             int index = match.Index;
             if (match.Success && index != 0)
diff --git a/Emby.Naming/Video/VideoResolver.cs b/Emby.Naming/Video/VideoResolver.cs
index 619d1520e..79a6da8f7 100644
--- a/Emby.Naming/Video/VideoResolver.cs
+++ b/Emby.Naming/Video/VideoResolver.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
 using Emby.Naming.Common;
@@ -146,7 +147,7 @@ namespace Emby.Naming.Video
         /// <param name="name">Raw name.</param>
         /// <param name="newName">Clean name.</param>
         /// <returns>True if cleaning of name was successful.</returns>
-        public bool TryCleanString(string name, out ReadOnlySpan<char> newName)
+        public bool TryCleanString([NotNullWhen(true)] string? name, out ReadOnlySpan<char> newName)
         {
             return CleanStringParser.TryClean(name, _options.CleanStringRegexes, out newName);
         }