Make FindUsableMSBuildAsync nullable

JoeRobich · JoeRobich · commit 584999e797e2 · 2025-07-21T15:28:29.000-07:00
diff --git a/src/Workspaces/MSBuild/Core/Rpc/RemoteBuildHost.cs b/src/Workspaces/MSBuild/Core/Rpc/RemoteBuildHost.cs
@@ -19,8 +19,8 @@ public RemoteBuildHost(RpcClient client)
         _client = client;
     }
 
-    public Task<MSBuildLocation> FindUsableMSBuildAsync(string projectOrSolutionFilePath, CancellationToken cancellationToken)
-        => _client.InvokeAsync<MSBuildLocation>(BuildHostTargetObject, nameof(IBuildHost.FindUsableMSBuild), parameters: [projectOrSolutionFilePath], cancellationToken);
+    public Task<MSBuildLocation?> FindUsableMSBuildAsync(string projectOrSolutionFilePath, CancellationToken cancellationToken)
+        => _client.InvokeNullableAsync<MSBuildLocation>(BuildHostTargetObject, nameof(IBuildHost.FindUsableMSBuild), parameters: [projectOrSolutionFilePath], cancellationToken);
 
     public async Task<RemoteProjectFile> LoadProjectFileAsync(string projectFilePath, string languageName, CancellationToken cancellationToken)
     {

Original file line number	Diff line number	Diff line change
`@@ -19,8 +19,8 @@ public RemoteBuildHost(RpcClient client)`
`19`	`19`	`_client = client;`
`20`	`20`	`}`
`21`	`21`
`22`		`- public Task<MSBuildLocation> FindUsableMSBuildAsync(string projectOrSolutionFilePath, CancellationToken cancellationToken)`
`23`		`- => _client.InvokeAsync<MSBuildLocation>(BuildHostTargetObject, nameof(IBuildHost.FindUsableMSBuild), parameters: [projectOrSolutionFilePath], cancellationToken);`
	`22`	`+ public Task<MSBuildLocation?> FindUsableMSBuildAsync(string projectOrSolutionFilePath, CancellationToken cancellationToken)`
	`23`	`+ => _client.InvokeNullableAsync<MSBuildLocation>(BuildHostTargetObject, nameof(IBuildHost.FindUsableMSBuild), parameters: [projectOrSolutionFilePath], cancellationToken);`
`24`	`24`
`25`	`25`	`public async Task<RemoteProjectFile> LoadProjectFileAsync(string projectFilePath, string languageName, CancellationToken cancellationToken)`
`26`	`26`	`{`