import * as React from "react"; /** * An abstract component that Blueprint components can extend * in order to add some common functionality like runtime props validation. */ export declare abstract class AbstractPureComponent2 extends React.PureComponent { componentWillUpdate: never; componentWillReceiveProps: never; componentWillMount: never; getDerivedStateFromProps: never; /** Component displayName should be `public static`. This property exists to prevent incorrect usage. */ protected displayName: never; private timeoutIds; private requestIds; constructor(props: P, context?: any); componentDidUpdate(_prevProps: P, _prevState: S, _snapshot?: SS): void; componentWillUnmount(): void; /** * Request an animation frame and remember its ID. * All pending requests will be canceled when component unmounts. * * @returns a "cancel" function that will cancel the request when invoked. */ requestAnimationFrame(callback: () => void): () => void; /** * Set a timeout and remember its ID. * All pending timeouts will be cleared when component unmounts. * * @returns a "cancel" function that will clear timeout when invoked. */ setTimeout(callback: () => void, timeout?: number): () => void; /** * Clear all known timeouts. */ clearTimeouts: () => void; /** * Clear all known animation frame requests. */ cancelAnimationFrames: () => void; /** * Ensures that the props specified for a component are valid. * Implementations should check that props are valid and usually throw an Error if they are not. * Implementations should not duplicate checks that the type system already guarantees. * * This method should be used instead of React's * [propTypes](https://facebook.github.io/react/docs/reusable-components.html#prop-validation) feature. * Like propTypes, these runtime checks run only in development mode. */ protected validateProps(_props: P): void; }