/**
 * Reactive registry of the `<Option>`s declared within a `<Combobox>`.
 *
 * The options only render their DOM while the dropdown is expanded, so a collapsed combobox can’t
 * look them up with `querySelector`. Each `<Option>` instead registers a live view of its own props
 * here, which lets the combobox resolve the current label and the initially selected value without
 * keeping the option elements in the DOM tree.
 *
 * The order of the registered options is not significant. Svelte still renders the options itself,
 * in declaration order, so nothing here has to reproduce that order.
 */
export class OptionRegistry {
    /**
     * Whether the dropdown is expanded, meaning the options should render their DOM.
     * @type {boolean}
     */
    expanded: boolean;
    /**
     * Number of registered options.
     * @returns {number} Count.
     */
    get count(): number;
    /**
     * Registered options, in registration order.
     * @returns {OptionEntry[]} Entries.
     */
    get entries(): OptionEntry[];
    /**
     * The option that is currently marked as selected, if any.
     * @returns {OptionEntry | undefined} Matching option.
     */
    get selectedEntry(): OptionEntry | undefined;
    /**
     * Register an option.
     * @param {OptionEntry} entry Live view of the option’s props.
     * @returns {() => void} Function to unregister the option.
     */
    register(entry: OptionEntry): () => void;
    /**
     * Find the option with the given value.
     * @param {any} value Value to look for.
     * @returns {OptionEntry | undefined} Matching option.
     */
    find(value: any): OptionEntry | undefined;
    /**
     * Mark the option with the given value as the only selected one.
     * @param {any} value Value to select.
     */
    selectOnly(value: any): void;
    #private;
}
export function createOptionRegistry(): OptionRegistry;
export function getOptionRegistry(): OptionRegistry | undefined;
export function getSelectedItemDetail(target: HTMLElement): SelectedItemDetail;
import type { OptionEntry } from '../typedefs';
import type { SelectedItemDetail } from '../typedefs';