VS Go to definition from C# to F#

eng/Versions.props

@@ -96,11 +96,11 @@
     <SystemRuntimeCompilerServicesUnsafeVersion>6.0.0</SystemRuntimeCompilerServicesUnsafeVersion>
     <SystemValueTupleVersion>4.5.0</SystemValueTupleVersion>
     <!-- Versions for package groups -->
-    <RoslynVersion>4.4.0-3.22470.1</RoslynVersion>
-    <VisualStudioEditorPackagesVersion>17.4.196-preview</VisualStudioEditorPackagesVersion>
-    <MicrosoftVisualStudioShellPackagesVersion>17.4.0-preview-3-32916-145</MicrosoftVisualStudioShellPackagesVersion>
-    <VisualStudioProjectSystemPackagesVersion>17.4.342-pre</VisualStudioProjectSystemPackagesVersion>
-    <MicrosoftVisualStudioThreadingPackagesVersion>17.4.23-alpha</MicrosoftVisualStudioThreadingPackagesVersion>
+    <RoslynVersion>4.5.0-1.22520.13</RoslynVersion>
+    <VisualStudioEditorPackagesVersion>17.5.49-preview</VisualStudioEditorPackagesVersion>
+    <MicrosoftVisualStudioShellPackagesVersion>17.5.0-preview-1-33020-520</MicrosoftVisualStudioShellPackagesVersion>
+    <VisualStudioProjectSystemPackagesVersion>17.5.202-pre-g89e17c9f72</VisualStudioProjectSystemPackagesVersion>
+    <MicrosoftVisualStudioThreadingPackagesVersion>17.4.27</MicrosoftVisualStudioThreadingPackagesVersion>
     <MicrosoftBuildOverallPackagesVersion>17.4.0-preview-22469-04</MicrosoftBuildOverallPackagesVersion>
     <!-- Roslyn packages -->
     <MicrosoftCodeAnalysisEditorFeaturesVersion>$(RoslynVersion)</MicrosoftCodeAnalysisEditorFeaturesVersion>
@@ -116,7 +116,7 @@
     <!-- Visual Studio Shell packages -->
     <MicrosoftVisualStudioInteropVersion>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioInteropVersion>
     <MicrosoftInternalVisualStudioInteropVersion>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftInternalVisualStudioInteropVersion>
-    <MicrosoftVisualStudioImagingInterop140DesignTimeVersion>17.4.0-preview-3-32916-053</MicrosoftVisualStudioImagingInterop140DesignTimeVersion>
+    <MicrosoftVisualStudioImagingInterop140DesignTimeVersion>17.5.0-preview-1-33019-447</MicrosoftVisualStudioImagingInterop140DesignTimeVersion>
     <MicrosoftVisualStudioShellInterop80Version>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioShellInterop80Version>
     <MicrosoftVisualStudioShellInterop90Version>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioShellInterop90Version>
     <MicrosoftVisualStudioShellInterop100Version>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioShellInterop100Version>
@@ -133,8 +133,8 @@
     <MicrosoftVisualStudioShellDesignVersion>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioShellDesignVersion>
     <MicrosoftVisualStudioShellFrameworkVersion>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioShellFrameworkVersion>
     <MicrosoftVisualStudioPackageLanguageService150Version>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioPackageLanguageService150Version>
-    <MicrosoftVisualStudioManagedInterfacesVersion>17.4.0-preview-3-32916-053</MicrosoftVisualStudioManagedInterfacesVersion>
-    <MicrosoftVisualStudioProjectAggregatorVersion>17.4.0-preview-3-32916-053</MicrosoftVisualStudioProjectAggregatorVersion>
+    <MicrosoftVisualStudioManagedInterfacesVersion>17.5.0-preview-1-33019-447</MicrosoftVisualStudioManagedInterfacesVersion>
+    <MicrosoftVisualStudioProjectAggregatorVersion>17.5.0-preview-1-33019-447</MicrosoftVisualStudioProjectAggregatorVersion>
     <MicrosoftVisualStudioGraphModelVersion>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioGraphModelVersion>
     <MicrosoftVisualStudioImagingVersion>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioImagingVersion>
     <MicrosoftVisualStudioDesignerInterfacesVersion>$(MicrosoftVisualStudioShellPackagesVersion)</MicrosoftVisualStudioDesignerInterfacesVersion>
@@ -171,7 +171,7 @@
     <MicrosoftVisualStudioProjectSystemManagedVersion>2.3.6152103</MicrosoftVisualStudioProjectSystemManagedVersion>
     <!-- Misc. Visual Studio packages -->
     <MicrosoftVSSDKBuildToolsVersion>17.1.4054</MicrosoftVSSDKBuildToolsVersion>
-    <MicrosoftVisualStudioRpcContractsVersion>17.4.7-alpha</MicrosoftVisualStudioRpcContractsVersion>
+    <MicrosoftVisualStudioRpcContractsVersion>17.5.9-alpha-g84529e7115</MicrosoftVisualStudioRpcContractsVersion>
     <MicrosoftVisualFSharpMicrosoftVisualStudioShellUIInternalVersion>17.0.0</MicrosoftVisualFSharpMicrosoftVisualStudioShellUIInternalVersion>
     <MicrosoftVisualStudioValidationVersion>17.0.64</MicrosoftVisualStudioValidationVersion>
     <MicrosoftVisualStudioWCFReferenceInteropVersion>9.0.30729</MicrosoftVisualStudioWCFReferenceInteropVersion>
@@ -204,8 +204,8 @@
     <NUnitLiteVersion>3.11.0</NUnitLiteVersion>
     <NunitXmlTestLoggerVersion>2.1.80</NunitXmlTestLoggerVersion>
     <RoslynToolsSignToolVersion>1.0.0-beta2-dev3</RoslynToolsSignToolVersion>
-    <StreamJsonRpcVersion>2.13.23-alpha</StreamJsonRpcVersion>
-    <NerdbankStreamsVersion>2.9.87-alpha</NerdbankStreamsVersion>
+    <StreamJsonRpcVersion>2.14.6-alpha</StreamJsonRpcVersion>
+    <NerdbankStreamsVersion>2.9.112</NerdbankStreamsVersion>
     <XUnitVersion>2.4.1</XUnitVersion>
     <XUnitRunnerVersion>2.4.2</XUnitRunnerVersion>
     <FluentAssertionsVersion>5.10.3</FluentAssertionsVersion>

src/Compiler/Symbols/Symbols.fs

@@ -1777,7 +1777,7 @@ type FSharpMemberOrFunctionOrValue(cenv, d:FSharpMemberOrValData, item) =
         if isUnresolved() then false else 
         match fsharpInfo() with 
         | None -> false
-        | Some v -> 
+        | Some v ->
         v.IsCompilerGenerated
 
     member _.InlineAnnotation = 

vsintegration/src/FSharp.Editor/LanguageService/MetadataAsSource.fs

@@ -94,7 +94,7 @@ module internal MetadataAsSource =
 
 [<Sealed>]
 [<Export(typeof<FSharpMetadataAsSourceService>); Composition.Shared>]
-type internal FSharpMetadataAsSourceService() =
+type FSharpMetadataAsSourceService() =
 
     let serviceProvider = ServiceProvider.GlobalProvider
     let projs = System.Collections.Concurrent.ConcurrentDictionary<string, IFSharpWorkspaceProjectContext>()

vsintegration/src/FSharp.Editor/LanguageService/WorkspaceExtensions.fs

@@ -91,17 +91,16 @@ module private CheckerExtensions =
             }
 
 [<RequireQualifiedAccess>]
-module private ProjectCache =
+module internal ProjectCache =
 
     /// This is a cache to maintain FSharpParsingOptions and FSharpProjectOptions per Roslyn Project.
     /// The Roslyn Project is held weakly meaning when it is cleaned up by the GC, the FSharParsingOptions and FSharpProjectOptions will be cleaned up by the GC.
     /// At some point, this will be the main caching mechanism for FCS projects instead of FCS itself.
     let Projects = ConditionalWeakTable<Project, FSharpChecker * FSharpProjectOptionsManager * FSharpParsingOptions * FSharpProjectOptions>()    
 
 type Solution with
-
     /// Get the instance of IFSharpWorkspaceService.
-    member private this.GetFSharpWorkspaceService() =
+    member internal this.GetFSharpWorkspaceService() =
         this.Workspace.Services.GetRequiredService<IFSharpWorkspaceService>()
 
 type Document with
@@ -247,3 +246,20 @@ type Project with
                 do! doc.FindFSharpReferencesAsync(symbol, (fun textSpan range -> onFound doc textSpan range), userOpName)
                     |> RoslynHelpers.StartAsyncAsTask ct
     }
+
+    member this.GetFSharpCompilationOptionsAsync(ct: CancellationToken) =
+        backgroundTask {
+            if this.IsFSharp then
+                match ProjectCache.Projects.TryGetValue(this) with
+                | true, result -> return result
+                | _ ->
+                    let service = this.Solution.GetFSharpWorkspaceService()
+                    let projectOptionsManager = service.FSharpProjectOptionsManager
+                    match! projectOptionsManager.TryGetOptionsByProject(this, ct) with
+                    | None -> return raise(OperationCanceledException("FSharp project options not found."))
+                    | Some(parsingOptions, projectOptions) ->
+                        let result = (service.Checker, projectOptionsManager, parsingOptions, projectOptions)
+                        return ProjectCache.Projects.GetValue(this, ConditionalWeakTable<_,_>.CreateValueCallback(fun _ -> result))
+            else
+                return raise(OperationCanceledException("Project is not a FSharp project."))
+        }