import { Observable } from '@tanbo/stream';
import { Action, Operation } from '../model/types';
import { Component } from '../model/component';
import { Model } from './observe';
export type Paths = Array<string | number>;
/**
 * 与 host（Component / Slot）相关、由宿主在构造函数里挂在 {@link ChangeMarker.hostHooks} 上的协作逻辑。
 */
export type ChangeMarkerPathResolution = {
    resolved: true;
    segment: string | number;
} | {
    resolved: false;
};
export interface ChangeMarkerHostHooks {
    resolvePathSegment(childHost: object): ChangeMarkerPathResolution;
    detachHostedMarkers?(): void;
}
/**
 * 用来标识数据模型的数据变化
 */
export declare class ChangeMarker {
    host: object;
    onForceChange: Observable<void>;
    onChange: Observable<Operation>;
    onChangeBefore: Observable<void>;
    onSelfChange: Observable<Action[]>;
    get irrevocableUpdate(): boolean;
    get dirty(): boolean;
    get changed(): boolean;
    parentModel: Model | null;
    /**
     * 宿主模型可在此挂上与路径解析、detach 相关的扩展（默认未设置），与 {@link parentModel} 类似由外部赋值。
     */
    hostHooks?: ChangeMarkerHostHooks;
    private detachCallbacks;
    private _irrevocableUpdate;
    private _dirty;
    private _changed;
    private _changeBefore;
    private changeEvent;
    private selfChangeEvent;
    private forceChangeEvent;
    private changeBeforeEvent;
    constructor(host: object);
    addDetachCallback(callback: () => void): void;
    getPaths(): Paths;
    beforeChange(): void;
    forceMarkDirtied(source?: Component<any>): void;
    forceMarkChanged(source?: Component<any>): void;
    markAsDirtied(operation: Operation): void;
    markAsChanged(operation: Operation): void;
    rendered(): void;
    reset(): void;
    detach(): void;
    private resetComponentState;
    private getPathInParent;
}
/**
 * 在回调函数内改变组件状态时，将更改的状态标记为不可撤回的
 * @param fn
 */
export declare function irrevocableUpdate(fn: () => void): void;