First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>

client/node_modules/langium/lib/lsp/file-operation-handler.d.ts

@@ -0,0 +1,54 @@
+/******************************************************************************
+ * Copyright 2023 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 { CreateFilesParams, DeleteFilesParams, FileOperationOptions, RenameFilesParams, WorkspaceEdit } from 'vscode-languageserver';
+import type { MaybePromise } from '../utils/promise-utils.js';
+/**
+ * Shared service for handling file changes such as file creation, deletion and renaming.
+ * The interface methods are optional, so they are only registered if they are implemented.
+ */
+export interface FileOperationHandler {
+    /**
+     * These options are reported to the client as part of the ServerCapabilities.
+     */
+    readonly fileOperationOptions: FileOperationOptions;
+    /**
+     * Files were created from within the client.
+     * This notification must be registered with the {@link fileOperationOptions}.
+     */
+    didCreateFiles?(params: CreateFilesParams): void;
+    /**
+     * Files were renamed from within the client.
+     * This notification must be registered with the {@link fileOperationOptions}.
+     */
+    didRenameFiles?(params: RenameFilesParams): void;
+    /**
+     * Files were deleted from within the client.
+     * This notification must be registered with the {@link fileOperationOptions}.
+     */
+    didDeleteFiles?(params: DeleteFilesParams): void;
+    /**
+     * Called before files are actually created as long as the creation is triggered from within
+     * the client either by a user action or by applying a workspace edit.
+     * This request must be registered with the {@link fileOperationOptions}.
+     * @returns a WorkspaceEdit which will be applied to workspace before the files are created.
+     */
+    willCreateFiles?(params: CreateFilesParams): MaybePromise<WorkspaceEdit | null>;
+    /**
+     * Called before files are actually renamed as long as the rename is triggered from within
+     * the client either by a user action or by applying a workspace edit.
+     * This request must be registered with the {@link fileOperationOptions}.
+     * @returns a WorkspaceEdit which will be applied to workspace before the files are renamed.
+     */
+    willRenameFiles?(params: RenameFilesParams): MaybePromise<WorkspaceEdit | null>;
+    /**
+     * Called before files are actually deleted as long as the deletion is triggered from within
+     * the client either by a user action or by applying a workspace edit.
+     * This request must be registered with the {@link fileOperationOptions}.
+     * @returns a WorkspaceEdit which will be applied to workspace before the files are deleted.
+     */
+    willDeleteFiles?(params: DeleteFilesParams): MaybePromise<WorkspaceEdit | null>;
+}
+//# sourceMappingURL=file-operation-handler.d.ts.map