Refactor vscode extension

editors/code/src/commands/parent_module.ts

@@ -0,0 +1,22 @@
+import * as vscode from 'vscode';
+
+import { TextDocumentIdentifier, Location } from "vscode-languageclient";
+import { Server } from '../server';
+
+export async function handle() {
+    let editor = vscode.window.activeTextEditor
+    if (editor == null || editor.document.languageId != "rust") return
+    let request: TextDocumentIdentifier = {
+        uri: editor.document.uri.toString()
+    }
+    let response = await Server.client.sendRequest<Location[]>("m/parentModule", request)
+    let loc = response[0]
+    if (loc == null) return
+    let uri = Server.client.protocol2CodeConverter.asUri(loc.uri)
+    let range = Server.client.protocol2CodeConverter.asRange(loc.range)
+
+    let doc = await vscode.workspace.openTextDocument(uri)
+    let e = await vscode.window.showTextDocument(doc)
+    e.selection = new vscode.Selection(range.start, range.start)
+    e.revealRange(range, vscode.TextEditorRevealType.InCenter)
+}