import { Slot } from './slot';
import { Component } from './component';
import { Decorator } from './decorator';
/**
 * Textbus 虚拟 DOM 文本节点
 */
export declare class VTextNode {
    textContent: string;
    location: NodeLocation | null;
    constructor(textContent?: string);
}
export interface VElementListeners {
    [listenKey: string]: <T extends Event>(ev: T) => any;
}
export type VChildNode = VElement | VTextNode | Component | Decorator | string | number | boolean | null | undefined;
/**
 * 虚拟 DOM 节点在数据内的范围
 */
export interface NodeLocation {
    startIndex: number;
    endIndex: number;
    slot: Slot;
}
export declare function createVNode(tagName: string, attrs?: Record<string, any> | null, children?: VChildNode[]): VElement;
/**
 * Textbus 虚拟 DOM 元素节点
 */
export declare class VElement {
    tagName: string;
    children: Array<VElement | VTextNode | Component | Decorator>;
    location: NodeLocation | null;
    readonly attrs: Map<string, any>;
    readonly styles: Map<string, string | number>;
    readonly classes: Set<string>;
    readonly listeners: VElementListeners;
    constructor(tagName: string, attrs?: Record<string, any> | null, children?: VChildNode[]);
    /**
     * 在最后位置添加一个子节点。
     * @param newNodes
     */
    appendChild(...newNodes: Array<VElement | VTextNode | Component | Decorator>): void;
}