More buildins and vscode exstention <CO-AUthored, ai>

extension/client/extension.js

@@ -0,0 +1,53 @@
+// extension.js — VS Code client for the VuurRaaf language server.
+//
+// Spawns `vr lsp` (the toolchain's built-in language server) and wires up
+// diagnostics, go-to-definition, and hover for .vr / .vrmm files.
+// The toolchain binary defaults to `vr` on PATH; override it with the
+// `vuurraaf.toolchainPath` setting.
+
+const vscode = require('vscode');
+const {
+	LanguageClient,
+	TransportKind,
+} = require('vscode-languageclient/node');
+
+let client;
+
+function activate(context) {
+	const config = () => vscode.workspace.getConfiguration('vuurraaf');
+	const toolchain = () => config().get('toolchainPath', 'vr');
+
+	const serverOptions = {
+		command: toolchain(),
+		args: ['lsp'],
+		transport: TransportKind.stdio,
+	};
+
+	const clientOptions = {
+		documentSelector: [{ scheme: 'file', language: 'vuurraaf' }],
+		synchronize: {
+			// re-publish diagnostics when a settings change or a file is saved
+			fileEvents: vscode.workspace.createFileSystemWatcher('**/*.{vr,vrmm}'),
+		},
+	};
+
+	client = new LanguageClient('vuurraaf', 'VuurRaaf', serverOptions, clientOptions);
+	client.start();
+
+	context.subscriptions.push(
+		vscode.commands.registerCommand('vuurraaf.restartServer', async () => {
+			await client.stop();
+			client = new LanguageClient('vuurraaf', 'VuurRaaf', serverOptions, clientOptions);
+			client.start();
+			vscode.window.showInformationMessage('VuurRaaf language server restarted.');
+		})
+	);
+}
+
+function deactivate() {
+	if (client) {
+		return client.stop();
+	}
+}
+
+module.exports = { activate, deactivate };