Expose IComponentRegistry on the $psEditor object

This change exposes a property called Components on the $psEditor object
which enables access to the PowerShell Editor Service framework
interface implementations used in the current session.

Author: daviwil

src/PowerShellEditorServices.Protocol/Server/LanguageServer.cs

@@ -132,7 +132,8 @@ public void Start()
             // Initialize the extension service
             // TODO: This should be made awaited once Initialize is async!
             this.editorSession.ExtensionService.Initialize(
-                this.editorOperations).Wait();
+                this.editorOperations,
+                this.editorSession.Components).Wait();
         }
 
         protected Task Stop()

src/PowerShellEditorServices/Extensions/EditorObject.cs

@@ -3,6 +3,7 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+using Microsoft.PowerShell.EditorServices.Components;
 using System;
 using System.Management.Automation;
 using System.Reflection;
@@ -42,19 +43,28 @@ public Version EditorServicesVersion
         /// </summary>
         public EditorWindow Window { get; private set; }
 
+        /// <summary>
+        /// Gets the component registry for the session.
+        /// </summary>
+        /// <returns></returns>
+        public IComponentRegistry Components { get; private set; }
+
         #endregion
 
         /// <summary>
         /// Creates a new instance of the EditorObject class.
         /// </summary>
         /// <param name="extensionService">An ExtensionService which handles command registration.</param>
         /// <param name="editorOperations">An IEditorOperations implementation which handles operations in the host editor.</param>
+        /// <param name="componentRegistry">An IComponentRegistry instance which provides components in the session.</param>
         public EditorObject(
             ExtensionService extensionService,
-            IEditorOperations editorOperations)
+            IEditorOperations editorOperations,
+            IComponentRegistry componentRegistry)
         {
             this.extensionService = extensionService;
             this.editorOperations = editorOperations;
+            this.Components = componentRegistry;
 
             // Create API area objects
             this.Workspace = new EditorWorkspace(this.editorOperations);

src/PowerShellEditorServices/Extensions/ExtensionService.cs

@@ -3,6 +3,7 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+using Microsoft.PowerShell.EditorServices.Components;
 using Microsoft.PowerShell.EditorServices.Utility;
 using System;
 using System.Collections.Generic;
@@ -68,10 +69,17 @@ public ExtensionService(PowerShellContext powerShellContext)
         /// implementation for future interaction with the host editor.
         /// </summary>
         /// <param name="editorOperations">An IEditorOperations implementation.</param>
+        /// <param name="componentRegistry">An IComponentRegistry instance which provides components in the session.</param>
         /// <returns>A Task that can be awaited for completion.</returns>
-        public async Task Initialize(IEditorOperations editorOperations)
+        public async Task Initialize(
+            IEditorOperations editorOperations,
+            IComponentRegistry componentRegistry)
         {
-            this.EditorObject = new EditorObject(this, editorOperations);
+            this.EditorObject =
+                new EditorObject(
+                    this,
+                    editorOperations,
+                    componentRegistry);
 
             // Register the editor object in the runspace
             PSCommand variableCommand = new PSCommand();

test/PowerShellEditorServices.Test/Extensions/ExtensionServiceTests.cs

@@ -3,6 +3,7 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+using Microsoft.PowerShell.EditorServices.Components;
 using Microsoft.PowerShell.EditorServices.Extensions;
 using Microsoft.PowerShell.EditorServices.Utility;
 using System;
@@ -46,7 +47,9 @@ public async Task InitializeAsync()
             this.extensionService.CommandUpdated += ExtensionService_ExtensionUpdated;
             this.extensionService.CommandRemoved += ExtensionService_ExtensionRemoved;
 
-            await this.extensionService.Initialize(this.editorOperations);
+            await this.extensionService.Initialize(
+                this.editorOperations,
+                new ComponentRegistry());
 
             var filePath = @"c:\Test\Test.ps1";
             this.currentFile = new ScriptFile(filePath, filePath, "This is a test file", new Version("5.0"));