import { ErrorInfo, ReactNode, Component } from 'react';
import { ErrorBoundaryProps } from '../types/react/ErrorBoundaryProps';
interface ErrorBoundaryState {
    hasError: boolean;
}
/**
 * A render error boundary that isolates a failing subtree.
 *
 * Catches errors thrown during descendant render, shows the optional `fallback`
 * (nothing by default), and forwards the error to `onError` so the widget can
 * log it through its own logger. Written with the class API (no JSX) to match
 * the library's JSX-runtime-free build.
 */
export declare class ErrorBoundary extends Component<ErrorBoundaryProps, ErrorBoundaryState> {
    state: ErrorBoundaryState;
    /**
     * Flips into the error state when a descendant throws.
     * @returns {ErrorBoundaryState} The next state.
     */
    static getDerivedStateFromError(): ErrorBoundaryState;
    /**
     * Forwards the caught error and component stack to the optional handler.
     * @param {Error} error - The thrown error.
     * @param {ErrorInfo} info - React error info (component stack).
     * @returns {void} Nothing.
     */
    componentDidCatch(error: Error, info: ErrorInfo): void;
    /**
     * Renders the children, or the fallback once an error has been caught.
     * @returns {ReactNode} The children or fallback.
     */
    render(): ReactNode;
}
export {};
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