import type { Option } from "../../Option";
import type { Exit } from "../Exit";
import type { Ref } from "../XRef/model";
import * as T from "./_internal/task";
export declare type Finalizer = (exit: Exit<any, any>) => T.Task<unknown, never, any>;
export interface ReleaseMap {
   readonly ref: Ref<ManagedState>;
}
export interface Exited {
   readonly _tag: "Exited";
   readonly nextKey: number;
   readonly exit: Exit<any, any>;
}
export interface Running {
   readonly _tag: "Running";
   readonly nextKey: number;
   readonly finalizers: ReadonlyMap<number, Finalizer>;
}
export declare type ManagedState = Exited | Running;
export declare const running: (nextKey: number, finalizers: ReadonlyMap<number, Finalizer>) => Running;
export declare const exited: (nextKey: number, exit: Exit<any, any>) => Exited;
export declare const finalizers: (state: Running) => ReadonlyMap<number, Finalizer>;
export declare const noopFinalizer: Finalizer;
export declare function addIfOpen(finalizer: Finalizer): (_: ReleaseMap) => T.Task<unknown, never, Option<number>>;
export declare function release(key: number, exit: Exit<any, any>): (_: ReleaseMap) => T.Task<unknown, never, any>;
export declare function add(finalizer: Finalizer): (_: ReleaseMap) => T.Task<unknown, never, Finalizer>;
export declare const replace: (
   key: number,
   finalizer: Finalizer
) => (_: ReleaseMap) => T.Task<unknown, never, Option<Finalizer>>;
export declare const ReleaseMap: (ref: Ref<ManagedState>) => ReleaseMap;
export declare const makeReleaseMap: T.Task<unknown, never, ReleaseMap>;
//# sourceMappingURL=ReleaseMap.d.ts.map