import type { ESLMixinElement, ESLMixinElementConstructable } from './esl-mixin-element';
/** Registry to store and initialize {@link ESLMixinElement} instances */
export declare class ESLMixinRegistry {
    /** Map that stores available mixins under their identifier (attribute) */
    protected store: Map<string, ESLMixinElementConstructable>;
    /** MutationObserver instance to track DOM changes and init mixins on-fly */
    protected mutation$$: MutationObserver;
    constructor();
    /** Array of registered mixin tags */
    get observedAttributes(): string[];
    /** Registers mixin definition using {@link ESLMixinElement} constructor */
    register(mixin: ESLMixinElementConstructable): void;
    /** Resubscribes DOM observer */
    resubscribe(root?: Element): void;
    /**
     * Invalidates all mixins on the element and subtree
     * @param root - root HTMLElement to start traversing
     * @param name - optional filter for mixin name
     */
    invalidateRecursive(root?: HTMLElement, name?: string): void;
    /**
     * Invalidates all mixins on the element
     * @param el - host element to invalidate mixins
     */
    invalidateAll(el: HTMLElement): void;
    /**
     * Invalidates passed mixin name on the element
     * @param el - host element to invalidate mixin
     * @param name - mixin name to invalidate
     * @param oldValue - optional previous value of mixins attribute
     */
    invalidate(el: HTMLElement, name: string, oldValue?: string | null): void;
    /** Handles DOM {@link MutationRecord} list */
    protected _onMutation(mutations: MutationRecord[]): void;
    /** Returns mixin instance by element */
    static get<T extends ESLMixinElementConstructable>(this: T, $el: HTMLElement): InstanceType<T> | null;
    /** Returns mixin instance by element and mixin name */
    static get($el: HTMLElement, name: string): ESLMixinElement | null;
    /** @returns all mixins initialized on passed host element */
    static getAll(el: HTMLElement): ESLMixinElement[];
    /** @returns if the passed mixin exists on the element */
    static has(el: HTMLElement, mixin: string): boolean;
    /** Sets mixin instance to the element store */
    private static set;
    /** Inits mixin instance on the element */
    private static init;
    /** Destroys passed mixin on the element */
    private static destroy;
    /** Destroys all mixins on the element and its subtree */
    private static destroyAll;
}