import type { ComponentDefinition } from './component-types';
import { type PropsDef } from './props';
/**
 * Phase transitions:
 *
 * ```
 * UNINITIALIZED ──_runSetup()──► SETUP_DONE
 * SETUP_DONE ──disconnectedCallback()──► UNMOUNTED ──(reset)──► UNINITIALIZED
 * ```
 *
 * `generation` increments on every disconnect. Scheduled mount callbacks capture
 * it so callbacks belonging to a disconnected instance cannot run after a
 * reconnect (see `_isStale`).
 *
 * Why this lives on the class instead of a standalone pure reducer: every
 * transition here is triggered by running actual user code (`def.setup()`,
 * `onMounted` callbacks) inside a reactive `scope.run()` + `runWithContext()`
 * — there is no meaningful "decide the next phase" step that can be separated
 * from "run the side-effecting thing that produces the phase change" without
 * introducing a data-only effect-description layer that this package has no
 * other use for. That's why the methods below stay as direct, readable
 * procedural steps instead of a reducer + effect interpreter.
 */
export declare class BaseElement extends HTMLElement {
    static _definition: ComponentDefinition;
    static _normalizedPropDefs: PropsDef<Record<never, never>> | undefined;
    static formAssociated: boolean;
    static observedAttributes: string[];
    private _component;
    constructor();
    connectedCallback(): void;
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    disconnectedCallback(): void;
    /** Dispose one connection's resources before its state can be rebuilt. */
    private _resetSetupState;
    /**
     * Native form-association lifecycle callback — the browser calls this on every
     * `formAssociated: true` element inside a `<form>` when that form is reset.
     * Runs every `onFormReset()` callback registered during `setup()`.
     */
    formResetCallback(): void;
    private _reportLifecycleError;
    private _runSetup;
    private _isStale;
    private _applyResult;
    private _init;
    private _applyStyles;
    private _mountTemplate;
    private _scheduleMountCallbacks;
}
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