Simplify Cecil TypeAttributes

MonoTypeAttributeHelper.cs

        [Flags]
        public enum CSharpTypeAttributes
        {
            Private = 0,
            Public = 1,
            Internal = 2,
            Protected = 4,
            ProtectedInternal = Protected | Internal,
        }

        public static CSharpTypeAttributes SimplifyAttributes(this TypeDefinition def)
        {
            if (def.IsPublic)
                return CSharpTypeAttributes.Public;
            if (!def.IsNested)
                return CSharpTypeAttributes.Internal;
            if (def.IsNestedFamilyOrAssembly)
                return CSharpTypeAttributes.ProtectedInternal;
            if (def.IsNestedAssembly)
                return CSharpTypeAttributes.Internal;
            if (def.IsNestedFamily)
                return CSharpTypeAttributes.Protected;
            return CSharpTypeAttributes.Private;
        }