/** @noSelfInFile */
import type { ClassComponent } from "../reconciler";
export interface ReducerState<S, A> {
    type: "reducer";
    reducer?: (this: void, prevState: S, action: A) => S;
    component?: ClassComponent<unknown>;
    value?: [S, (action: A) => void];
}
export interface EffectHookState<I> {
    type: "effect";
    lastInputs?: I;
    cleanup?: void | (() => void);
}
export interface RefState<T> {
    type: "ref";
    current: T;
}
export interface MemoState<T, U> {
    type: "memo";
    current: T;
    inputs: U;
}
export declare type HookState<S, A = unknown> = ReducerState<S, A> | EffectHookState<S> | RefState<S> | MemoState<S, A>;