import { OnDestroy } from '@angular/core';
import { SafeAny } from '@ngx-simple/core/types';
import { Observable, Subject } from 'rxjs';
import { Constructor } from './constructor';
export interface CanUnsubscribe extends OnDestroy {
    readonly simUnsubscribe$: Subject<void>;
}
export declare type CanUnsubscribeCtor = Constructor<CanUnsubscribe>;
/**
 * 用来扩充指令的`simUnsubscribe$`属性 指令销毁自动取消订阅
 * - 在rxjs的`.pipe(..., takeUntil(this.simUnsubscribe$))`使用
 * - 也可以使用`.pipe(..., untilUnmounted(this))`
 * - 注意：如果在组件需要`ngOnDestroy`钩子，需要调用先调用 `super.ngOnDestroy()`
 */
export declare function mixinUnsubscribe<T extends Constructor<{}>>(base: T): CanUnsubscribeCtor & T;
/**
 * 取消订阅操作符 配合`mixinUnsubscribe`使用
 * @example
 * ```
 * rxjs.pipe(pipe1,untilUnmounted(this))
 * ```
 */
export declare function untilUnmounted<T extends CanUnsubscribe>(destroyInstance: T): (source: Observable<SafeAny>) => Observable<any>;