import { Entity } from "./entity";
import { Component } from "./component";
import { Option } from "lazy-space";
import { Iteration } from "../iterator";
export interface Storage<A extends Component> {
    set(id: Entity, component: A): Storage<A>;
    remove(id: Entity): Storage<A>;
    get(id: Entity): Option<A>;
    has(id: Entity): boolean;
    entities(): Iteration<Entity>;
    clear(): void;
}
export declare class SparseStorage<A extends Component> implements Storage<A> {
    private readonly data;
    set(id: Entity, component: A): Storage<A>;
    remove(id: Entity): Storage<A>;
    get(id: Entity): Option<A>;
    has(id: Entity): boolean;
    entities(): Iteration<Entity>;
    clear(): void;
}
export declare class DenseStorage<A extends Component> implements Storage<A> {
    private data;
    set(id: Entity, component: A): Storage<A>;
    remove(id: Entity): Storage<A>;
    get(id: Entity): Option<A>;
    has(id: Entity): boolean;
    entities(): Iteration<Entity>;
    clear(): void;
}