MyPluginSupportInfo fixed.

Author: otuncelli

SvgFileType/MyPluginSupportInfo.cs

@@ -4,28 +4,35 @@
 
 using PaintDotNet;
 using System;
+using System.Linq.Expressions;
 using System.Reflection;
 
 namespace SvgFileTypePlugin
 {
     public sealed class MyPluginSupportInfo : IPluginSupportInfo, IPluginSupportInfoProvider
     {
+        private static readonly Assembly CurrentAssembly = typeof(MyPluginSupportInfo).Assembly;
+        internal static readonly MyPluginSupportInfo Instance = new MyPluginSupportInfo();
         public const string VersionString = "1.0.4.0";
         public const string Url = "https://github.com/otuncelli/Scalable-Vector-Graphics-Plugin-for-Paint.NET";
 
+        private static string GetAssemblyAttributeValue<T>(Expression<Func<T, string>> expr) where T : Attribute
+        {
+            var attr = CurrentAssembly.GetCustomAttribute(typeof(T));
+            var prop = ((MemberExpression)expr.Body).Member as PropertyInfo;
+            return prop?.GetGetMethod().Invoke(attr, null) as string;
+        }
+
         #region IPluginSupportInfo
         public string Author => "Osman Tunçelli";
-        public string Copyright => ((AssemblyCopyrightAttribute)(typeof(PluginSupportInfo).Assembly.GetCustomAttributes(typeof(AssemblyCopyrightAttribute), false)[0])).Copyright;
-        public string DisplayName => ((AssemblyProductAttribute)GetType().Assembly.GetCustomAttributes(typeof(AssemblyProductAttribute), inherit: false)[0]).Product;
-        public Version Version => typeof(PluginSupportInfo).Assembly.GetName().Version;
+        public string Copyright => GetAssemblyAttributeValue<AssemblyCopyrightAttribute>(a => a.Copyright);
+        public string DisplayName => GetAssemblyAttributeValue<AssemblyProductAttribute>(a => a.Product);
+        public Version Version => CurrentAssembly.GetName().Version;
         public Uri WebsiteUri => new Uri(Url);
         #endregion
 
         #region IPluginSupportInfoProvider
-        public IPluginSupportInfo GetPluginSupportInfo()
-        {
-            return new MyPluginSupportInfo();
-        }
+        public IPluginSupportInfo GetPluginSupportInfo() => Instance;
         #endregion
     }
 }