Remove dependency to fix browser compatibility.

index.ts

@@ -16,12 +16,18 @@ import type {
   Definition,
   DefinitionLink,
   Diagnostic,
-  TextEditor
+  TextEditor,
+  TextDocumentChangeEvent
 } from 'vscode'
-import { optionalRequire } from 'optional-require'
 
-// eslint-disable-next-line @typescript-eslint/no-var-requires
-const vscode = optionalRequire('vscode')
+// eslint-disable-next-line @typescript-eslint/consistent-type-imports
+let vscode: typeof import('vscode')
+
+try {
+  // eslint-disable-next-line @typescript-eslint/no-var-requires
+  vscode = require('vscode')
+} catch (e) {
+}
 
 const documentSelector: DocumentSelector = {
   scheme: 'file',
@@ -515,8 +521,8 @@ export function activate (context: ExtensionContext): void {
         definitionProvider
       ),
       diagnosticCollection,
-      vscode.workspace.onDidChangeTextDocument((textEditor: TextEditor) => {
-        refreshDiagnostics(textEditor.document)
+      vscode.workspace.onDidChangeTextDocument((e: TextDocumentChangeEvent) => {
+        refreshDiagnostics(e.document)
       }),
       vscode.workspace.onDidCloseTextDocument((document: TextDocument) => {
         diagnosticCollection.delete(document.uri)

package.json

@@ -46,7 +46,9 @@
   },
   "publisher": "skitscript",
   "devDependencies": {
+    "@skitscript/parser-nodejs": "2.0.2",
     "@types/jasmine": "^4.6.4",
+    "@types/node": "^20.14.10",
     "@types/rewire": "^2.5.30",
     "@types/vscode": "^1.90.0",
     "@typescript-eslint/eslint-plugin": "^5.59.1",
@@ -62,10 +64,8 @@
     "npm-run-all": "^4.1.5",
     "rewire": "^7.0.0",
     "typescript": "^5.4.5",
-    "vscode-tmgrammar-test": "^0.1.3",
-    "@skitscript/parser-nodejs": "2.0.2",
-    "optional-require": "^1.1.8",
-    "vsce": "^2.15.0"
+    "vsce": "^2.15.0",
+    "vscode-tmgrammar-test": "^0.1.3"
   },
   "scripts": {
     "test": "npm-run-all testCleanCases testCopyCases testSnapshot buildCleanTypeScript buildLintFix buildTypeScript buildEsbuild buildJasmine",