ok

package.json

@@ -108,17 +108,20 @@
     "test": "vscode-test"
   },
   "devDependencies": {
-    "@types/vscode": "^1.70.0",
     "@types/mocha": "^10.0.6",
     "@types/node": "20.x",
+    "@types/vscode": "^1.70.0",
     "@typescript-eslint/eslint-plugin": "^7.11.0",
     "@typescript-eslint/parser": "^7.11.0",
+    "@vscode/test-cli": "^0.0.9",
+    "@vscode/test-electron": "^2.4.0",
     "eslint": "^8.57.0",
-    "typescript": "^5.4.5",
     "ts-loader": "^9.5.1",
+    "typescript": "^5.4.5",
     "webpack": "^5.92.0",
-    "webpack-cli": "^5.1.4",
-    "@vscode/test-cli": "^0.0.9",
-    "@vscode/test-electron": "^2.4.0"
+    "webpack-cli": "^5.1.4"
+  },
+  "dependencies": {
+    "vscode-languageclient": "^9.0.1"
   }
 }

src/extension.ts

@@ -4,10 +4,17 @@ import formatCurrentDocument from "./codeFormatter";
 import fileRunners from "./fileRunners";
 import installBend from "./installBend";
 import BendTreeDataProvider from "./bendTreeDataProvider";
+import { LanguageClient, LanguageClientOptions, ServerOptions } from 'vscode-languageclient/node';
+import runLSP from "./lsp";
+
+
+let client: LanguageClient;
 
 function main(context: { subscriptions: vscode.Disposable[] }): void {
   const bendTreeDataProvider: BendTreeDataProvider = new BendTreeDataProvider();
 
+  runLSP();
+
   context.subscriptions.push(
     vscode.languages.registerDocumentFormattingEditProvider("bend", {
       provideDocumentFormattingEdits(): vscode.ProviderResult<any> {

src/lsp.ts

@@ -0,0 +1,64 @@
+import vscode from "vscode";
+import { LanguageClient, LanguageClientOptions, ServerOptions } from "vscode-languageclient/node";
+import os from "os"
+import path from "path";
+import fs from "fs"
+
+export default function runLSP() {
+    let executablePath: string = '';
+    const platform: string = os.platform();
+    const arch: string = os.arch();
+
+    if (platform === "win32") {
+        if (arch === "x64") {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'windows', 'x64.exe');
+        } else if (os.arch() === "ia32") {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'windows', 'x86.exe');
+        }
+        else {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'windows', 'arm64.exe');
+        }
+    } else if (platform == "darwin") {
+        if (arch === "x64") {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'macos', 'x64');
+        } else if (os.arch() === "ia32") {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'macos', 'x86');
+        }
+        else {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'macos', 'arm64');
+        }
+    } else {
+        if (arch === "x64") {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'linux', 'x64');
+        } else if (os.arch() === "ia32") {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'linux', 'x86');
+        }
+        else {
+            executablePath = path.join(__dirname, '..', 'lsp-bin', 'linux', 'arm64');
+        }
+    }
+    fs.chmod(executablePath, 0o775, (err) => {
+        if (err) throw err;
+        console.log('The permissions for file "my_file.txt" have been changed!');
+      });
+
+    let serverOptions: ServerOptions = {
+        run: { command: executablePath },
+        debug: { command: executablePath }
+    };
+
+    let clientOptions: LanguageClientOptions = {
+        documentSelector: [{ scheme: 'file', language: 'bend' }],
+    };
+
+    // Create the language client and start the client.
+    const client = new LanguageClient(
+        'bendlang',
+        'bendlangserver',
+        serverOptions,
+        clientOptions
+    );
+
+    // Start the client. This will also launch the server
+    client.start();
+}