Move cohost options to explicit class (#11566)

Co-authored-by: Chris Sienkiewicz <chsienki@microsoft.com>

Author: github-actions[bot]

src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/SourceGenerators/RazorCohostingOptions.cs

@@ -0,0 +1,9 @@
+namespace Microsoft.NET.Sdk.Razor.SourceGenerators;
+
+internal static class RazorCohostingOptions
+{
+    /// <summary>
+    /// True if razor is running in the cohosting mode
+    /// </summary>
+    internal static bool UseRazorCohostServer { get; set; } = false;
+}

src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/SourceGenerators/RazorSourceGenerator.cs

@@ -19,8 +19,6 @@ public partial class RazorSourceGenerator : IIncrementalGenerator
     {
         private static RazorSourceGeneratorEventSource Log => RazorSourceGeneratorEventSource.Log;
 
-        internal static bool UseRazorCohostServer { get; set; } = false;
-
         // Testing usage only.
         private readonly string? _testSuppressUniqueIds;
 
@@ -40,7 +38,7 @@ public void Initialize(IncrementalGeneratorInitializationContext context)
             var compilation = context.CompilationProvider;
 
             // determine if we should suppress this run and filter out all the additional files and references if so
-            var isGeneratorSuppressed = analyzerConfigOptions.CheckGlobalFlagSet("SuppressRazorSourceGenerator").Select((suppress, _) => !UseRazorCohostServer && suppress);
+            var isGeneratorSuppressed = analyzerConfigOptions.CheckGlobalFlagSet("SuppressRazorSourceGenerator").Select((suppress, _) => !RazorCohostingOptions.UseRazorCohostServer && suppress);
             var additionalTexts = context.AdditionalTextsProvider.EmptyOrCachedWhen(isGeneratorSuppressed, true);
             var metadataRefs = context.MetadataReferencesProvider.EmptyOrCachedWhen(isGeneratorSuppressed, true);
 

src/Razor/src/Microsoft.CodeAnalysis.Remote.Razor/Initialization/RemoteLanguageServerFeatureOptions.cs

@@ -20,21 +20,10 @@ public void SetOptions(RemoteClientInitializationOptions options)
     {
         _options = options;
 
-        if (options.UseRazorCohostServer)
-        {
-            // ensure the source generator is in the correct mode
-            SetGeneratorToCohostMode();
-        }
+        // ensure the source generator is in the correct mode
+        RazorCohostingOptions.UseRazorCohostServer = options.UseRazorCohostServer;
     }
 
-    /// <summary>
-    /// Sets the generator into cohosting mode.
-    /// </summary>
-    /// <remarks>
-    /// This is explicitly a separate method so that if not used we don't unnecessarily JIT any of the generator code.
-    /// </remarks>
-    private static void SetGeneratorToCohostMode() => RazorSourceGenerator.UseRazorCohostServer = true;
-
     public override bool SupportsFileManipulation => _options.SupportsFileManipulation;
 
     public override string CSharpVirtualDocumentSuffix => _options.CSharpVirtualDocumentSuffix;