import { Pipe, Eval } from "lazy-space";
import { Entity } from "./entity";
export declare type Component = object;
export interface EntityView {
    entity: Entity;
    components: {
        [name: string]: Component;
    };
}
export declare abstract class ComponentSource<C, T> extends Pipe<EntityView, T> {
    readonly components: C[];
    readonly name: string;
    constructor(components: C[], name: string);
    protected abstract pass(entity: EntityView): Eval<T>;
}