Add net35/net10.0 targets with compiler guards for APIs unsupported by PolyShim

Directory.Packages.props

@@ -9,7 +9,7 @@
     <PackageVersion Include="FluentAssertions" Version="6.12.0" />
     <PackageVersion Include="Gress" Version="2.1.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageVersion Include="PolyShim" Version="2.8.2" />
+    <PackageVersion Include="PolyShim" Version="2.9.0" />
     <PackageVersion Include="xunit" Version="2.9.2" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />
   </ItemGroup>

PowerKit/Extensions/AssemblyExtensions.cs

@@ -2,8 +2,10 @@
 using System.Reflection;
 using System.Resources;
 using System.Text;
+#if NET40_OR_GREATER || NETSTANDARD || NET
 using System.Threading;
 using System.Threading.Tasks;
+#endif
 
 namespace PowerKit.Extensions;
 
@@ -44,6 +46,7 @@ public string GetManifestResourceString(string resourceName, Encoding encoding)
         public string GetManifestResourceString(string resourceName) =>
             assembly.GetManifestResourceString(resourceName, Encoding.UTF8);
 
+#if NET40_OR_GREATER || NETSTANDARD || NET
         /// <summary>
         /// Reads the specified manifest resource as a string using the specified encoding asynchronously.
         /// Throws <see cref="MissingManifestResourceException" /> if the resource is not found.
@@ -75,6 +78,7 @@ public async Task<string> GetManifestResourceStringAsync(
             await assembly
                 .GetManifestResourceStringAsync(resourceName, Encoding.UTF8, cancellationToken)
                 .ConfigureAwait(false);
+#endif
 
         /// <summary>
         /// Extracts the specified manifest resource to a file at the given path.
@@ -93,6 +97,7 @@ public void ExtractManifestResource(string resourceName, string filePath)
             destination.Flush();
         }
 
+#if NET40_OR_GREATER || NETSTANDARD || NET
         /// <summary>
         /// Extracts the specified manifest resource to a file at the given path asynchronously.
         /// Throws <see cref="MissingManifestResourceException" /> if the resource is not found.
@@ -121,5 +126,6 @@ public async Task ExtractManifestResourceAsync(
             await source.CopyToAsync(destination, 81920, cancellationToken).ConfigureAwait(false);
             await destination.FlushAsync(cancellationToken).ConfigureAwait(false);
         }
+#endif
     }
 }

PowerKit/Extensions/AsyncEnumerableExtensions.cs

@@ -1,3 +1,4 @@
+#if NET40_OR_GREATER || NETSTANDARD || NET
 using System;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
@@ -84,3 +85,4 @@ var item in source
         public ValueTaskAwaiter<List<T>> GetAwaiter() => source.ToListAsync().GetAwaiter();
     }
 }
+#endif

PowerKit/Extensions/EnumerableExtensions.cs

@@ -104,10 +104,12 @@ public IEnumerable<string> WhereNotNullOrWhiteSpace()
         /// </summary>
         public T? LastOrNull()
         {
+#if NET40_OR_GREATER || NETSTANDARD || NET
             if (source is IReadOnlyList<T> list)
             {
                 return list.Count > 0 ? list[list.Count - 1] : null;
             }
+#endif
 
             var last = default(T?);
 
@@ -124,7 +126,11 @@ public IEnumerable<string> WhereNotNullOrWhiteSpace()
         /// </summary>
         public T? ElementAtOrNull(int index)
         {
+#if NET40_OR_GREATER || NETSTANDARD || NET
             var list = source as IReadOnlyList<T> ?? source.ToArray();
+#else
+            var list = source as IList<T> ?? source.ToArray();
+#endif
             return index >= 0 && index < list.Count ? list[index] : null;
         }
     }

PowerKit/Extensions/ExceptionExtensions.cs

@@ -11,7 +11,11 @@ internal static class ExceptionExtensions
         /// Returns a flat list containing the exception itself and all of its
         /// nested inner exceptions, recursively unwrapping <see cref="AggregateException" /> instances.
         /// </summary>
+#if NET40_OR_GREATER || NETSTANDARD || NET
         public IReadOnlyList<Exception> GetSelfAndDescendants()
+#else
+        public IList<Exception> GetSelfAndDescendants()
+#endif
         {
             static void PopulateDescendants(Exception ex, ICollection<Exception> result)
             {
@@ -36,3 +40,4 @@ static void PopulateDescendants(Exception ex, ICollection<Exception> result)
         }
     }
 }
+

PowerKit/Extensions/FileExtensions.cs

@@ -74,6 +74,7 @@ public static byte[] ReadAllBytes(string path, long offset, int length)
             return buffer;
         }
 
+#if NET40_OR_GREATER || NETSTANDARD || NET
         /// <summary>
         /// Reads all bytes from the specified file starting at the given offset asynchronously.
         /// </summary>
@@ -136,5 +137,6 @@ public static async Task<byte[]> ReadAllBytesAsync(
 
             return buffer;
         }
+#endif
     }
 }

PowerKit/Extensions/StreamExtensions.cs

@@ -1,3 +1,4 @@
+#if NET40_OR_GREATER || NETSTANDARD || NET
 using System;
 using System.Buffers;
 using System.IO;
@@ -99,3 +100,4 @@ await source
         }
     }
 }
+#endif

PowerKit/Extensions/TextReaderExtensions.cs

@@ -1,3 +1,4 @@
+#if NET40_OR_GREATER || NETSTANDARD || NET
 using System.Collections.Generic;
 using System.IO;
 using System.Runtime.CompilerServices;
@@ -25,3 +26,4 @@ await reader.ReadLineAsync(cancellationToken).ConfigureAwait(false) is { } line
         }
     }
 }
+#endif

PowerKit/PowerKit.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFrameworks>netstandard2.0;net35;net10.0</TargetFrameworks>
     <IsPackable>true</IsPackable>
   </PropertyGroup>