import FileTreeNode from '../model/FileTreeNode';
export declare const noop: () => void;
export interface Dictionary<T> {
    [key: string]: T;
}
export declare function getFileIndex(fileRoot: Array<FileTreeNode>): {};
export declare function getParentPath(currentPath: string | null): string;
export declare function iterateFile(fileRoot: FileTreeNode, callback: ((FileTreeNode: any) => boolean | void)): void;
export declare function getFileTreeByPlainPathArray(files: Array<{
    code: string;
    path: string;
}>): FileTreeNode[] | undefined;
export declare function violentlyAddNodeToFileTree(treeRoot: FileTreeNode, newFilePath: string, newFileCode: string, isDirectory?: boolean): void;
export declare function deleteFileOnTree(currentLevelFiles: Array<FileTreeNode>, targetFilePath: string): {
    files: any;
    filesDeleted: (string | undefined)[];
};
/**
 * 计算关闭一堆tab以后，打开哪个tab
 * @param tabItems 当前所有的tab
 * @param currentOpen 当前打开的tab
 * @param filesToClose 要关闭的tab
 */
export declare function findNextFileToOpenOnTabClose(tabItems: Array<string>, currentOpen: string, filesToClose: Array<string>): string | null;