import { State } from "./state";
import { commitSymbol, phaseSymbol, updateSymbol, effectsSymbol, Phase, EffectsSymbols } from "./symbols";
import { GenericRenderer, ComponentOrVirtualComponent } from "./core";
import { ChildPart } from "lit-html";
declare abstract class BaseScheduler<P extends object, T extends HTMLElement | ChildPart, R extends GenericRenderer<T, P>, H extends ComponentOrVirtualComponent<T, P>> {
    renderer: R;
    host: H;
    state: State<H>;
    [phaseSymbol]: Phase | null;
    _updateQueued: boolean;
    _active: boolean;
    _updateCount: number;
    _processing: boolean;
    static maxUpdates: number;
    constructor(renderer: R, host: H);
    private _checkForInfiniteLoop;
    update(): void;
    handlePhase(phase: typeof commitSymbol, arg: unknown): void;
    handlePhase(phase: typeof updateSymbol): unknown;
    handlePhase(phase: typeof effectsSymbol): void;
    render(): unknown;
    runEffects(phase: EffectsSymbols): void;
    abstract commit(result: unknown): void;
    teardown(): void;
    pause(): void;
    resume(): void;
}
export { BaseScheduler };