add hw2

node_modules/langium/lib/node/node-file-system-provider.js

@@ -0,0 +1,28 @@
+/******************************************************************************
+ * Copyright 2022 TypeFox GmbH
+ * This program and the accompanying materials are made available under the
+ * terms of the MIT License, which is available in the project root.
+ ******************************************************************************/
+import { UriUtils } from '../utils/uri-utils.js';
+import * as fs from 'node:fs';
+export class NodeFileSystemProvider {
+    constructor() {
+        this.encoding = 'utf-8';
+    }
+    readFile(uri) {
+        return fs.promises.readFile(uri.fsPath, this.encoding);
+    }
+    async readDirectory(folderPath) {
+        const dirents = await fs.promises.readdir(folderPath.fsPath, { withFileTypes: true });
+        return dirents.map(dirent => ({
+            dirent, // Include the raw entry, it may be useful...
+            isFile: dirent.isFile(),
+            isDirectory: dirent.isDirectory(),
+            uri: UriUtils.joinPath(folderPath, dirent.name)
+        }));
+    }
+}
+export const NodeFileSystem = {
+    fileSystemProvider: () => new NodeFileSystemProvider()
+};
+//# sourceMappingURL=node-file-system-provider.js.map