add hw2

node_modules/langium/lib/lsp/code-action.d.ts

@@ -0,0 +1,19 @@
+/******************************************************************************
+ * Copyright 2021 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 type { CodeAction, CodeActionParams, Command } from 'vscode-languageserver';
+import type { CancellationToken } from '../utils/cancellation.js';
+import type { MaybePromise } from '../utils/promise-utils.js';
+import type { LangiumDocument } from '../workspace/documents.js';
+export interface CodeActionProvider {
+    /**
+     * Handle a code action request.
+     *
+     * @throws `OperationCancelled` if cancellation is detected during execution
+     * @throws `ResponseError` if an error is detected that should be sent as response to the client
+     */
+    getCodeActions(document: LangiumDocument, params: CodeActionParams, cancelToken?: CancellationToken): MaybePromise<Array<Command | CodeAction> | undefined>;
+}
+//# sourceMappingURL=code-action.d.ts.map