Move to .NET 8.0 (#3119)

* Basics of net8.0. Breaking unit tests expected.

* Missed that TestRunner project was already upgraded to net7.0 (search and replace fail)

* Use Preview 6 locally

* Use .NET 8.0 RTM

* Final fixups

---------

Co-authored-by: Christoph Wille <christoph.wille@gmail.com>

.github/workflows/build-frontends.yml

@@ -14,10 +14,10 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
-    - name: Setup .NET
-      uses: actions/setup-dotnet@v3
+    - uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: '8.0.x'
+        dotnet-quality: 'ga'
 
     - name: Install dependencies
       run: dotnet restore ILSpy.XPlat.slnf

.github/workflows/build-ilspy.yml

@@ -26,6 +26,11 @@ jobs:
         submodules: true
         fetch-depth: 0
 
+    - uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: '8.0.x'
+        dotnet-quality: 'ga'
+    
     - name: Add msbuild to PATH
       uses: microsoft/setup-msbuild@v1.3
 
@@ -48,9 +53,9 @@ jobs:
     - name: Execute unit tests
       run: dotnet test --logger "junit;LogFileName=${{ matrix.configuration }}.xml" --results-directory test-results $env:Tests1 $env:Tests2 $env:Tests3
       env:
-        Tests1: ICSharpCode.Decompiler.Tests\bin\${{ matrix.configuration }}\net6.0-windows\win-x64\ICSharpCode.Decompiler.Tests.dll
-        Tests2: ILSpy.Tests\bin\${{ matrix.configuration }}\net6.0-windows\ILSpy.Tests.dll
-        Tests3: ILSpy.BamlDecompiler.Tests\bin\${{ matrix.configuration }}\net6.0-windows\win-x64\ILSpy.BamlDecompiler.Tests.dll
+        Tests1: ICSharpCode.Decompiler.Tests\bin\${{ matrix.configuration }}\net8.0-windows\win-x64\ICSharpCode.Decompiler.Tests.dll
+        Tests2: ILSpy.Tests\bin\${{ matrix.configuration }}\net8.0-windows\ILSpy.Tests.dll
+        Tests3: ILSpy.BamlDecompiler.Tests\bin\${{ matrix.configuration }}\net8.0-windows\win-x64\ILSpy.BamlDecompiler.Tests.dll
 
     - name: Upload Test Logs
       uses: actions/upload-artifact@v3
@@ -76,7 +81,7 @@ jobs:
         git diff --exit-code
     
     - name: Zip ILSpy (framework-dependent)
-      run: 7z a -tzip $env:StagingDirectory\ILSpy_binaries.zip .\ILSpy\bin\${{ matrix.configuration }}\net6.0-windows\*.dll .\ILSpy\bin\${{ matrix.configuration }}\net6.0-windows\*.exe .\ILSpy\bin\${{ matrix.configuration }}\net6.0-windows\*.config .\ILSpy\bin\${{ matrix.configuration }}\net6.0-windows\*.json .\ILSpy\bin\${{ matrix.configuration }}\net6.0-windows\*\ILSpy.resources.dll .\ILSpy\bin\${{ matrix.configuration }}\net6.0-windows\*\ILSpy.ReadyToRun.Plugin.resources.dll
+      run: 7z a -tzip $env:StagingDirectory\ILSpy_binaries.zip .\ILSpy\bin\${{ matrix.configuration }}\net8.0-windows\*.dll .\ILSpy\bin\${{ matrix.configuration }}\net8.0-windows\*.exe .\ILSpy\bin\${{ matrix.configuration }}\net8.0-windows\*.config .\ILSpy\bin\${{ matrix.configuration }}\net8.0-windows\*.json .\ILSpy\bin\${{ matrix.configuration }}\net8.0-windows\*\ILSpy.resources.dll .\ILSpy\bin\${{ matrix.configuration }}\net8.0-windows\*\ILSpy.ReadyToRun.Plugin.resources.dll
 
     - name: Publish x64/arm64 framework-dependent/self-contained
       shell: pwsh
@@ -84,11 +89,11 @@ jobs:
 
     - name: Zip ILSpy Release (x64 self-contained)
       if: matrix.configuration == 'release'    
-      run: 7z a -tzip $env:StagingDirectory\ILSpy_selfcontained_x64.zip .\ILSpy\bin\Release\net6.0-windows\win-x64\publish\selfcontained\*  
+      run: 7z a -tzip $env:StagingDirectory\ILSpy_selfcontained_x64.zip .\ILSpy\bin\Release\net8.0-windows\win-x64\publish\selfcontained\*  
 
     - name: Zip ILSpy Release (arm64 framework-dependent)
       if: matrix.configuration == 'release'    
-      run: 7z a -tzip $env:StagingDirectory\ILSpy_binaries_arm64.zip .\ILSpy\bin\Release\net6.0-windows\win-arm64\publish\fwdependent\*
+      run: 7z a -tzip $env:StagingDirectory\ILSpy_binaries_arm64.zip .\ILSpy\bin\Release\net8.0-windows\win-arm64\publish\fwdependent\*
 
     - name: Build Installer (x64 and arm64, framework-dependent)
       if: matrix.configuration == 'release'  

.github/workflows/codeql-analysis.yml

@@ -27,10 +27,10 @@ jobs:
       with:
         languages: ${{ matrix.language }}
 
-    - name: Setup .NET
-      uses: actions/setup-dotnet@v3
+    - uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: 6.0.x
+        dotnet-version: '8.0.x'
+        dotnet-quality: 'ga'
 
     - name: Build
       run: dotnet build ILSpy.XPlat.slnf --configuration Release

ICSharpCode.Decompiler.TestRunner/ICSharpCode.Decompiler.TestRunner.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

ICSharpCode.Decompiler.Tests/Helpers/Tester.cs

@@ -105,9 +105,9 @@ namespace ICSharpCode.Decompiler.Tests.Helpers
 			TesterPath = Path.GetDirectoryName(typeof(Tester).Assembly.Location);
 			TestCasePath = Path.Combine(TesterPath, "../../../../TestCases");
 #if DEBUG
-			testRunnerBasePath = Path.Combine(TesterPath, "../../../../../ICSharpCode.Decompiler.TestRunner/bin/Debug/net7.0");
+			testRunnerBasePath = Path.Combine(TesterPath, "../../../../../ICSharpCode.Decompiler.TestRunner/bin/Debug/net8.0");
 #else
-			testRunnerBasePath = Path.Combine(TesterPath, "../../../../../ICSharpCode.Decompiler.TestRunner/bin/Release/net7.0");
+			testRunnerBasePath = Path.Combine(TesterPath, "../../../../../ICSharpCode.Decompiler.TestRunner/bin/Release/net8.0");
 #endif
 			packagesPropsFile = Path.Combine(TesterPath, "../../../../../packages.props");
 			roslynLatestVersion = XDocument.Load(packagesPropsFile).XPathSelectElement("//RoslynVersion").Value;
@@ -270,8 +270,8 @@ namespace ICSharpCode.Decompiler.Tests.Helpers
 		}
 
 		static readonly string coreRefAsmPath = new DotNetCorePathFinder(TargetFrameworkIdentifier.NET,
-			new Version(7, 0), "Microsoft.NETCore.App")
-				.GetReferenceAssemblyPath(".NETCoreApp,Version=v7.0");
+			new Version(8, 0), "Microsoft.NETCore.App")
+				.GetReferenceAssemblyPath(".NETCoreApp,Version=v8.0");
 
 		public static readonly string RefAsmPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86),
 			@"Reference Assemblies\Microsoft\Framework\.NETFramework\v4.7.2");
@@ -309,7 +309,7 @@ namespace ICSharpCode.Decompiler.Tests.Helpers
 
 		const string targetFrameworkAttributeSnippet = @"
 
-[assembly: System.Runtime.Versioning.TargetFramework("".NETCoreApp,Version=v7.0"", FrameworkDisplayName = """")]
+[assembly: System.Runtime.Versioning.TargetFramework("".NETCoreApp,Version=v8.0"", FrameworkDisplayName = """")]
 
 ";
 
@@ -345,6 +345,7 @@ namespace ICSharpCode.Decompiler.Tests.Helpers
 					preprocessorSymbols.Add("NETCORE");
 					preprocessorSymbols.Add("NET60");
 					preprocessorSymbols.Add("NET70");
+					preprocessorSymbols.Add("NET80");
 				}
 				preprocessorSymbols.Add("ROSLYN");
 				preprocessorSymbols.Add("CS60");
@@ -374,6 +375,7 @@ namespace ICSharpCode.Decompiler.Tests.Helpers
 					preprocessorSymbols.Add("ROSLYN4");
 					preprocessorSymbols.Add("CS100");
 					preprocessorSymbols.Add("CS110");
+					preprocessorSymbols.Add("CS120");
 				}
 			}
 			else if ((flags & CompilerOptions.UseMcsMask) != 0)

ICSharpCode.Decompiler.Tests/ICSharpCode.Decompiler.Tests.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
     <IsPackable>false</IsPackable>
     <StartupObject>AutoGeneratedProgram</StartupObject>

ICSharpCode.Decompiler.Tests/TestCases/Pretty/Switch.cs

@@ -1444,7 +1444,11 @@ namespace ICSharpCode.Decompiler.Tests.TestCases.Pretty
 
 		public static bool DoNotRemoveAssignmentBeforeSwitch(string x, out ConsoleKey key)
 		{
+#if NET40 || !ROSLYN
 			key = (ConsoleKey)0;
+#else
+			key = ConsoleKey.None;
+#endif
 			switch (x)
 			{
 				case "A":
@@ -1457,7 +1461,11 @@ namespace ICSharpCode.Decompiler.Tests.TestCases.Pretty
 					key = ConsoleKey.C;
 					break;
 			}
+#if NET40 || !ROSLYN
 			return key != (ConsoleKey)0;
+#else
+			return key != ConsoleKey.None;
+#endif
 		}
 
 		public static void Issue1767(string s)

ICSharpCode.ILSpyCmd/ICSharpCode.ILSpyCmd.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ServerGarbageCollection>true</ServerGarbageCollection>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <IsPackable>true</IsPackable>

ICSharpCode.ILSpyX/ICSharpCode.ILSpyX.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <WarningsAsErrors>nullable</WarningsAsErrors>

ILSpy.AddIn.VS2022/ILSpy.AddIn.VS2022.csproj

@@ -74,8 +74,8 @@
   </ItemGroup>
 
   <PropertyGroup>
-    <ILSpyBuildPathX64>..\ILSpy\bin\$(Configuration)\net6.0-windows\win-x64\publish\fwdependent\</ILSpyBuildPathX64>
-    <ILSpyBuildPathArm64>..\ILSpy\bin\$(Configuration)\net6.0-windows\win-arm64\publish\fwdependent\</ILSpyBuildPathArm64>
+    <ILSpyBuildPathX64>..\ILSpy\bin\$(Configuration)\net8.0-windows\win-x64\publish\fwdependent\</ILSpyBuildPathX64>
+    <ILSpyBuildPathArm64>..\ILSpy\bin\$(Configuration)\net8.0-windows\win-arm64\publish\fwdependent\</ILSpyBuildPathArm64>
   </PropertyGroup>
 
   <Target Name="IncludeILSpyDistributionInVSIXSubFolder" AfterTargets="ResolveProjectReferences">

ILSpy.AddIn/ILSpy.AddIn.csproj

@@ -80,7 +80,7 @@
   </ItemGroup>
 
   <PropertyGroup>
-    <ILSpyBuildPath>..\ILSpy\bin\$(Configuration)\net6.0-windows\win-x64\publish\fwdependent\</ILSpyBuildPath>
+    <ILSpyBuildPath>..\ILSpy\bin\$(Configuration)\net8.0-windows\win-x64\publish\fwdependent\</ILSpyBuildPath>
   </PropertyGroup>
 
   <Target Name="IncludeILSpyDistributionInVSIXSubFolder" AfterTargets="ResolveProjectReferences">

ILSpy.BamlDecompiler.Tests/ILSpy.BamlDecompiler.Tests.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
     <IsPackable>false</IsPackable>
     <StartupObject>AutoGeneratedProgram</StartupObject>

ILSpy.BamlDecompiler/ILSpy.BamlDecompiler.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <AssemblyName>ILSpy.BamlDecompiler.Plugin</AssemblyName>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <RuntimeIdentifiers>win-x64;win-arm64</RuntimeIdentifiers>
     <IsPackable>false</IsPackable>
     <GenerateAssemblyInfo>False</GenerateAssemblyInfo>

ILSpy.Installer/setup.cs

@@ -25,7 +25,7 @@ namespace ILSpy.Installer
 #else
 			var buildPlatform = "x64";
 #endif
-			var buildOutputDir = $@"ILSpy\bin\{buildConfiguration}\net6.0-windows\win-{buildPlatform}\publish\fwdependent";
+			var buildOutputDir = $@"ILSpy\bin\{buildConfiguration}\net8.0-windows\win-{buildPlatform}\publish\fwdependent";
 
 			var project = new Project("ILSpy",
 							  new InstallDir(@"%LocalAppData%\Programs\ILSpy",

ILSpy.ReadyToRun/ILSpy.ReadyToRun.csproj

@@ -3,7 +3,7 @@
 
   <PropertyGroup>
     <AssemblyName>ILSpy.ReadyToRun.Plugin</AssemblyName>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <RuntimeIdentifiers>win-x64;win-arm64</RuntimeIdentifiers>
     <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
     <NeutralResourcesLanguage>en-US</NeutralResourcesLanguage>

ILSpy.Tests/ILSpy.Tests.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <IsPackable>false</IsPackable>
     <StartupObject>AutoGeneratedProgram</StartupObject>
 

ILSpy/ILSpy.csproj

@@ -3,7 +3,7 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <RuntimeIdentifiers>win-x64;win-arm64</RuntimeIdentifiers>
     <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
     <AutoGenerateBindingRedirects>false</AutoGenerateBindingRedirects>

SharpTreeView/ICSharpCode.TreeView.csproj

@@ -5,7 +5,7 @@
     <UseWpf>true</UseWpf>
     <GenerateAssemblyInfo>False</GenerateAssemblyInfo>
     <SignAssembly>True</SignAssembly>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <AssemblyOriginatorKeyFile>..\ICSharpCode.Decompiler\ICSharpCode.Decompiler.snk</AssemblyOriginatorKeyFile>
     <EnableWindowsTargeting>true</EnableWindowsTargeting>
   </PropertyGroup>

TestPlugin/TestPlugin.csproj

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <AssemblyName>Test.Plugin</AssemblyName>
     <UseWpf>true</UseWpf>
     <EnableWindowsTargeting>true</EnableWindowsTargeting>

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "7.0.100",
+    "version": "8.0.100",
     "rollForward": "major",
     "allowPrerelease": true
   }

publish.ps1

@@ -1,6 +1,6 @@
-$output_arm64 = "./ILSpy/bin/Release/net6.0-windows/win-arm64/publish/fwdependent"
-$output_x64 = "./ILSpy/bin/Release/net6.0-windows/win-x64/publish/fwdependent"
-$output_x64_selfcontained = "./ILSpy/bin/Release/net6.0-windows/win-x64/publish/selfcontained"
+$output_arm64 = "./ILSpy/bin/Release/net8.0-windows/win-arm64/publish/fwdependent"
+$output_x64 = "./ILSpy/bin/Release/net8.0-windows/win-x64/publish/fwdependent"
+$output_x64_selfcontained = "./ILSpy/bin/Release/net8.0-windows/win-x64/publish/selfcontained"
 
 dotnet publish ./ILSpy/ILSpy.csproj -c Release --no-restore --no-self-contained -r win-arm64 -o $output_arm64
 dotnet publish ./ILSpy.ReadyToRun/ILSpy.ReadyToRun.csproj -c Release --no-restore --no-self-contained -r win-arm64 -o $output_arm64