DeviceDependentGenerator added to tasks.json. It can now generate the files during VS Code builds. Ignore list updated.

.gitignore

@@ -18,3 +18,5 @@ PerfectNumbers.Core.Tests/bin/*
 PerfectNumbers.Core.Tests/obj/*
 .DS_Store
 .vs/*
+*.generated.cs
+PerfectNumbers.Core/generated/*

.vscode/tasks.json

@@ -11,7 +11,8 @@
                                 "--configuration",
                                 "Debug",
                                 "--framework",
-                                "net8.0"
+                                "net8.0",
+                                "/p:DeviceDependentGenerator_CopyGeneratedToProjectDir=true"
                         ],
                         "group": {
                                 "kind": "build",
@@ -29,7 +30,8 @@
                                 "--configuration",
                                 "Release",
                                 "--framework",
-                                "net8.0"
+                                "net8.0",
+                                "/p:DeviceDependentGenerator_CopyGeneratedToProjectDir=true"
                         ],
                         "group": "build",
                         "problemMatcher": "$msCompile"

DeviceDependentGenerator/DeviceDependentGenerator.cs

@@ -54,9 +54,12 @@ public sealed class DeviceDependentGenerator : IIncrementalGenerator
         IncrementalValueProvider<GeneratorOptions> options = context.AnalyzerConfigOptionsProvider.Select(
             static (provider, _) => new GeneratorOptions(provider.GlobalOptions));
 
-        context.RegisterSourceOutput(templates.Combine(options), static (productionContext, pair) =>
+        IncrementalValueProvider<(Compilation Compilation, GeneratorOptions Options)> compilationAndOptions =
+            context.CompilationProvider.Combine(options).Select(static (pair, _) => (pair.Left, pair.Right));
+
+        context.RegisterSourceOutput(templates.Combine(compilationAndOptions), static (productionContext, pair) =>
         {
-            GenerateForTemplate(productionContext, pair.Left, pair.Right);
+            GenerateForTemplate(productionContext, pair.Left, pair.Right.Compilation, pair.Right.Options);
         });
     }
 
@@ -119,7 +122,7 @@ public sealed class DeviceDependentGenerator : IIncrementalGenerator
         return TemplateInfo.CreateValid(templateSymbol, enumTypeSymbol, attributeLocation, enumValues, suffix);
     }
 
-    private static void GenerateForTemplate(SourceProductionContext context, TemplateInfo template, GeneratorOptions options)
+    private static void GenerateForTemplate(SourceProductionContext context, TemplateInfo template, Compilation compilation, GeneratorOptions options)
     {
         if (!template.Valid)
         {
@@ -146,6 +149,7 @@ public sealed class DeviceDependentGenerator : IIncrementalGenerator
         SourceText fileText = templateSyntax.SyntaxTree.GetText(context.CancellationToken);
         string filePath = templateSyntax.SyntaxTree.FilePath;
         CSharpParseOptions baseParseOptions = (CSharpParseOptions)templateSyntax.SyntaxTree.Options;
+        SyntaxTree originalTree = templateSyntax.SyntaxTree;
 
         foreach (string enumValueName in template.EnumValues)
         {
@@ -166,6 +170,8 @@ public sealed class DeviceDependentGenerator : IIncrementalGenerator
                 continue;
             }
 
+            ReportDeviceSpecificTemplateErrors(context, compilation, originalTree, deviceTree, templateSyntax.Identifier.GetLocation(), enumValueName);
+
             string generatedTypeName = baseName + enumValueName + template.Suffix;
             TypeDeclarationSyntax generatedTypeSyntax = TransformTemplateType(deviceTemplateSyntax, generatedTypeName);
 
@@ -186,6 +192,45 @@ public sealed class DeviceDependentGenerator : IIncrementalGenerator
         }
     }
 
+    private static void ReportDeviceSpecificTemplateErrors(
+        SourceProductionContext context,
+        Compilation compilation,
+        SyntaxTree originalTree,
+        SyntaxTree deviceTree,
+        Location fallbackLocation,
+        string enumValueName)
+    {
+        foreach (Diagnostic diagnostic in deviceTree.GetDiagnostics(context.CancellationToken))
+        {
+            if (diagnostic.Severity == DiagnosticSeverity.Error)
+            {
+                context.ReportDiagnostic(diagnostic);
+            }
+        }
+
+        if (compilation is not CSharpCompilation csharpCompilation)
+        {
+            return;
+        }
+
+        CSharpCompilation deviceCompilation = csharpCompilation.ReplaceSyntaxTree(originalTree, deviceTree);
+        foreach (Diagnostic diagnostic in deviceCompilation.GetDiagnostics(context.CancellationToken))
+        {
+            if (diagnostic.Severity != DiagnosticSeverity.Error)
+            {
+                continue;
+            }
+
+            if (diagnostic.Location is { Kind: LocationKind.SourceFile } location
+                && location.SourceTree != deviceTree)
+            {
+                continue;
+            }
+
+            context.ReportDiagnostic(diagnostic);
+        }
+    }
+
     private static bool IsTopLevel(TypeDeclarationSyntax typeDeclaration)
         => typeDeclaration.Parent is NamespaceDeclarationSyntax
             || typeDeclaration.Parent is FileScopedNamespaceDeclarationSyntax

PerfectNumbers.Core/PerfectNumbers.Core.csproj

@@ -5,8 +5,14 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <LangVersion>12.0</LangVersion>
+    <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
+    <CompilerGeneratedFilesOutputPath>$(IntermediateOutputPath)generated</CompilerGeneratedFilesOutputPath>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Compile Remove="**/*.generated.cs" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="PeterO.Numbers" Version="1.8.1" />
     <PackageReference Include="Open.Numeric.Primes" Version="4.0.4" />
@@ -28,4 +34,15 @@
     <InternalsVisibleTo Include="EvenPerfectBitScanner.Benchmarks" />
   </ItemGroup>
 
+  <Target Name="CopyDeviceDependentGeneratedToProjectDir"
+          AfterTargets="CoreCompile"
+          Condition="'$(DeviceDependentGenerator_CopyGeneratedToProjectDir)' == 'true' Or '$(BuildingInsideVisualStudio)' == 'true'">
+    <ItemGroup>
+      <_DeviceDependentGeneratedFiles Include="$(CompilerGeneratedFilesOutputPath)\DeviceDependentGenerator\PerfectNumbers.Core.Generators.DeviceDependentGenerator\**\*.generated.cs" />
+    </ItemGroup>
+    <Copy SourceFiles="@(_DeviceDependentGeneratedFiles)"
+          DestinationFiles="@(_DeviceDependentGeneratedFiles->'$(ProjectDir)%(RecursiveDir)%(Filename)%(Extension)')"
+          SkipUnchangedFiles="true" />
+  </Target>
+
 </Project>