Merge pull request #510 from CommunityToolkit/dev/shared-props

Use PolySharp for polyfills, and centralize shared MSBuild properties

Author: Sergio0694

build/Community.Toolkit.Common.props

@@ -27,6 +27,7 @@
   <PropertyGroup>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>$(RepositoryDirectory)toolkit.snk</AssemblyOriginatorKeyFile>
+    <AssemblySignPublicKey>002400000480000094000000060200000024000052534131000400000100010041753AF735AE6140C9508567666C51C6AB929806ADB0D210694B30AB142A060237BC741F9682E7D8D4310364B4BBA4EE89CC9D3D5CE7E5583587E8EA44DCA09977996582875E71FB54FA7B170798D853D5D8010B07219633BDB761D01AC924DA44576D6180CDCEAE537973982BB461C541541D58417A3794E34F45E6F2D129E2</AssemblySignPublicKey>
   </PropertyGroup>
 
   <PropertyGroup>

build/Community.Toolkit.Common.targets

@@ -17,10 +17,4 @@
     <None Include="$(RepositoryDirectory)ThirdPartyNotices.txt" Pack="true" PackagePath="\" Visible="False" />
   </ItemGroup>
 
-  <!-- Configure trimming for core projects on .NET 6 and above -->
-  <PropertyGroup Condition="'$(IsCoreProject)' == 'true' AND ('$(TargetFramework)' == 'net6.0' OR '$(TargetFramework)' == 'net7.0')">
-    <EnableTrimAnalyzer>true</EnableTrimAnalyzer>
-    <IsTrimmable>true</IsTrimmable>
-  </PropertyGroup>
-
 </Project>

src/CommunityToolkit.Common/Attributes/NotNullIfNotNullAttribute.cs

@@ -14,9 +14,13 @@
     <PackageTags>Incremental;Loading;Collection;IncrementalLoadingCollection;String;Array;Extensions;Helpers</PackageTags>
   </PropertyGroup>
 
-  <!-- .NET Standard 2.1 and .NET 6 already have [NotNullIfNotNull] and [NotNullWhen] -->
-  <PropertyGroup Condition="'$(TargetFramework)' == 'net6.0'">
-    <DefineConstants>NETSTANDARD2_1_OR_GREATER</DefineConstants>
+  <!-- Necessary polyfills -->
+  <PropertyGroup>
+    <PolySharpIncludeGeneratedTypes>
+      System.Diagnostics.CodeAnalysis.NotNullIfNotNullAttribute;
+      System.Diagnostics.CodeAnalysis.NotNullWhenAttribute;
+      System.Runtime.CompilerServices.SkipLocalsInitAttribute;
+    </PolySharpIncludeGeneratedTypes>
   </PropertyGroup>
 
 </Project>