Directory.Build.targets

<Project>
  <!-- https://www.nuget.org/packages/Microsoft.CodeAnalysis.Analyzers/ -->
  <!-- https://www.nuget.org/packages/Microsoft.CodeAnalysis.CSharp.Workspaces/ -->
  <PropertyGroup>
    <RoslynVersion></RoslynVersion>
  </PropertyGroup>

  <Choose>
    <When Condition="$(RoslynVersion) == 'roslyn3.8'">
      <ItemGroup >
        <PackageReference Update="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp" Version="3.8.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.Workspaces.Common" Version="3.8.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.8.0" />
      </ItemGroup>
      <PropertyGroup>
        <DefineConstants>$(DefineConstants);ROSLYN_3_8</DefineConstants>
        <DefineConstants>$(DefineConstants);CSHARP9_OR_GREATER</DefineConstants>
        <NoWarn>$(NoWarn);nullable</NoWarn>
      </PropertyGroup>
    </When>

    <When Condition="$(RoslynVersion) == 'roslyn4.2'">
      <ItemGroup>
        <PackageReference Update="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp" Version="4.2.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.2.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.2.0" />
      </ItemGroup>
      <PropertyGroup>
        <DefineConstants>$(DefineConstants);ROSLYN_4_2;ROSLYN_4_2_OR_GREATER</DefineConstants>
        <DefineConstants>$(DefineConstants);CSHARP9_OR_GREATER;CSHARP10_OR_GREATER</DefineConstants>
        <NoWarn>$(NoWarn);nullable</NoWarn>
      </PropertyGroup>
    </When>

    <When Condition="$(RoslynVersion) == 'roslyn4.4'">
      <ItemGroup>
        <PackageReference Update="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.4.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.4.0" />
      </ItemGroup>
      <PropertyGroup>
        <DefineConstants>$(DefineConstants);ROSLYN_4_4;ROSLYN_4_2_OR_GREATER;ROSLYN_4_4_OR_GREATER</DefineConstants>
        <DefineConstants>$(DefineConstants);CSHARP9_OR_GREATER;CSHARP10_OR_GREATER;CSHARP11_OR_GREATER</DefineConstants>
        <NoWarn>$(NoWarn);nullable</NoWarn>
      </PropertyGroup>
    </When>

    <When Condition="$(RoslynVersion) == 'roslyn4.6'">
      <ItemGroup>
        <PackageReference Update="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp" Version="4.6.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.6.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.6.0" />
      </ItemGroup>
      <PropertyGroup>
        <DefineConstants>$(DefineConstants);ROSLYN_4_6;ROSLYN_4_2_OR_GREATER;ROSLYN_4_4_OR_GREATER;ROSLYN_4_6_OR_GREATER</DefineConstants>
        <DefineConstants>$(DefineConstants);CSHARP9_OR_GREATER;CSHARP10_OR_GREATER;CSHARP11_OR_GREATER</DefineConstants>
        <NoWarn>$(NoWarn);nullable</NoWarn>
      </PropertyGroup>
    </When>

    <When Condition="$(RoslynVersion) == 'roslyn4.8'">
      <ItemGroup>
        <PackageReference Update="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp" Version="4.8.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.8.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.8.0" />
      </ItemGroup>
      <PropertyGroup>
        <DefineConstants>$(DefineConstants);ROSLYN_4_8;ROSLYN_4_2_OR_GREATER;ROSLYN_4_4_OR_GREATER;ROSLYN_4_6_OR_GREATER;ROSLYN_4_8_OR_GREATER</DefineConstants>
        <DefineConstants>$(DefineConstants);CSHARP9_OR_GREATER;CSHARP10_OR_GREATER;CSHARP11_OR_GREATER;CSHARP12_OR_GREATER</DefineConstants>
        <NoWarn>$(NoWarn);nullable</NoWarn>
      </PropertyGroup>
    </When>

    <Otherwise>
      <ItemGroup>
        <PackageReference Update="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp" Version="4.11.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.Workspaces.Common" Version="4.11.0" />
        <PackageReference Update="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
      </ItemGroup>
      <PropertyGroup>
        <DefineConstants>$(DefineConstants);ROSLYN4_8;ROSLYN_4_2_OR_GREATER;ROSLYN_4_4_OR_GREATER;ROSLYN_4_5_OR_GREATER;ROSLYN_4_6_OR_GREATER;ROSLYN_4_8_OR_GREATER;ROSLYN_4_10_OR_GREATER</DefineConstants>
        <DefineConstants>$(DefineConstants);CSHARP9_OR_GREATER;CSHARP10_OR_GREATER;CSHARP11_OR_GREATER;CSHARP12_OR_GREATER;CSHARP13_OR_GREATER</DefineConstants>
        <NoWarn>$(NoWarn);CS0618</NoWarn>
      </PropertyGroup>
    </Otherwise>
  </Choose>

  <!-- disable the nullable warnings when compiling for .NET Standard 2.0 -->
  <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'net462'">
    <NoWarn>$(NoWarn);nullable</NoWarn>
  </PropertyGroup>
</Project>