Enable nullable annotations for Volo.Abp.Minify

framework/src/Volo.Abp.Minify/Volo.Abp.Minify.csproj

@@ -5,6 +5,8 @@
 
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;netstandard2.1;net7.0</TargetFrameworks>
+    <Nullable>enable</Nullable>
+    <WarningsAsErrors>Nullable</WarningsAsErrors>
     <AssemblyName>Volo.Abp.Minify</AssemblyName>
     <PackageId>Volo.Abp.Minify</PackageId>
     <AssetTargetFallback>$(AssetTargetFallback);portable-net45+win8+wp8+wpa81;</AssetTargetFallback>

framework/src/Volo.Abp.Minify/Volo/Abp/Minify/IMinifier.cs

@@ -6,6 +6,6 @@ public interface IMinifier
 {
     string Minify(
         string source,
-        [CanBeNull] string fileName = null,
-        [CanBeNull] string originalFileName = null);
+        string? fileName = null,
+        string? originalFileName = null);
 }

framework/src/Volo.Abp.Minify/Volo/Abp/Minify/NUglify/NUglifyCssMinifier.cs

@@ -5,7 +5,7 @@ namespace Volo.Abp.Minify.NUglify;
 
 public class NUglifyCssMinifier : NUglifyMinifierBase, ICssMinifier
 {
-    protected override UglifyResult UglifySource(string source, string fileName)
+    protected override UglifyResult UglifySource(string source, string? fileName)
     {
         return Uglify.Css(source, fileName);
     }

framework/src/Volo.Abp.Minify/Volo/Abp/Minify/NUglify/NUglifyException.cs

@@ -7,7 +7,7 @@ namespace Volo.Abp.Minify.NUglify;
 
 public class NUglifyException : AbpException
 {
-    public List<UglifyError> Errors { get; set; }
+    public List<UglifyError>? Errors { get; set; }
 
     public NUglifyException(string message, List<UglifyError> errors)
         : base(message)

framework/src/Volo.Abp.Minify/Volo/Abp/Minify/NUglify/NUglifyHtmlMinifier.cs

@@ -5,7 +5,7 @@ namespace Volo.Abp.Minify.NUglify;
 
 public class NUglifyHtmlMinifier : NUglifyMinifierBase, IHtmlMinifier
 {
-    protected override UglifyResult UglifySource(string source, string fileName)
+    protected override UglifyResult UglifySource(string source, string? fileName)
     {
         return Uglify.Html(source, sourceFileName: fileName);
     }

framework/src/Volo.Abp.Minify/Volo/Abp/Minify/NUglify/NUglifyJavascriptMinifier.cs

@@ -5,7 +5,7 @@ namespace Volo.Abp.Minify.NUglify;
 
 public class NUglifyJavascriptMinifier : NUglifyMinifierBase, IJavascriptMinifier
 {
-    protected override UglifyResult UglifySource(string source, string fileName)
+    protected override UglifyResult UglifySource(string source, string? fileName)
     {
         return Uglify.Js(source, fileName);
     }

framework/src/Volo.Abp.Minify/Volo/Abp/Minify/NUglify/NUglifyMinifierBase.cs

@@ -8,7 +8,7 @@ namespace Volo.Abp.Minify.NUglify;
 
 public abstract class NUglifyMinifierBase : IMinifier, ITransientDependency
 {
-    private static void CheckErrors(UglifyResult result, string originalFileName)
+    private static void CheckErrors(UglifyResult result, string? originalFileName)
     {
         if (result.HasErrors)
         {
@@ -28,8 +28,8 @@ public abstract class NUglifyMinifierBase : IMinifier, ITransientDependency
 
     public string Minify(
         string source,
-        string fileName = null,
-        string originalFileName = null)
+        string? fileName = null,
+        string? originalFileName = null)
     {
         try
         {
@@ -50,5 +50,5 @@ public abstract class NUglifyMinifierBase : IMinifier, ITransientDependency
         }
     }
 
-    protected abstract UglifyResult UglifySource(string source, string fileName);
+    protected abstract UglifyResult UglifySource(string source, string? fileName);
 }