import { ComponentProps, default as React } from 'react';
/**
 * The following source code is mainly inspired by
 * https://github.com/pluralsight/classic-design-system/blob/08f0962dec18d99e1799a16c7b7eac86f01cbc27/packages/util/src/primatives.ts
 */
export type As<BaseProps = any> = React.ElementType<BaseProps>;
/**
 * Omit will not distribute over unions by default, this utility type will
 * distribute it, allowing to omit keys from each member of the union.
 *
 * @example
 *  type A = { a: string; b: number }
 *  type B = { a: string; c: boolean }
 *  type Union = A | B
 *
 *  // Without DistributiveOmit
 *  type Test1 = Omit<Union, 'a'> // never  (because 'a' is in both A and B)
 *  type Test2 = Omit<Union, 'b'> // B      (because 'b' is not in B)
 */
export type DistributiveOmit<T, K extends keyof any> = T extends any ? Omit<T, K> : never;
/**
 * Injects in given props the one of the element
 */
export type ForwardRefProps<Props extends EmptyProps, CompType extends React.ElementType<any>> = MergeProps<Props, ComponentProps<CompType>>;
export interface ForwardRefWithAsRenderFunction<DefaultComponentType extends As, ComponentProps extends PropsType = Record<string, any>> {
    (props: PropsFromAs<DefaultComponentType, ComponentProps>, ref: React.Ref<React.ElementRef<DefaultComponentType>>): null | React.ReactElement;
    /**
     * defaultProps are not supported on render functions
     */
    defaultProps?: never;
    displayName?: string;
    /**
     * propTypes are not supported on render functions
     */
    propTypes?: never;
}
export interface FunctionComponentWithAs<DefaultComponentType extends As, ComponentProps extends PropsType> {
    /**
     * Inherited from React.FunctionComponent with modification to support `as`
     */
    <CompType extends As = DefaultComponentType>(props: PropsWithAs<CompType, ComponentProps>, context?: any): null | React.ReactElement<any, any>;
    /**
     * Inherited from React.FunctionComponent
     */
    defaultProps?: Partial<PropsWithAs<DefaultComponentType, ComponentProps>>;
    displayName?: string;
}
/**
 * This will merge two prop objects, giving P1 priority over P2
 * In other words, any props in P1 that are also in P2 will override the ones in P2
 * This is useful when combining the props of the `as` component with your own props
 */
export type MergeProps<P1 = EmptyProps, P2 = EmptyProps> = DistributiveOmit<P2, keyof P1> & P1;
/**
 * Get the props of a component with `as` support
 * This will take care of the ref and the merging of the props
 */
export type PropsFromAs<CompType extends As, ComponentProps extends PropsType> = React.PropsWithoutRef<PropsWithAs<CompType, ComponentProps>>;
/**
 * Props of a component with `as` support
 */
export type PropsWithAs<CompType extends As, ComponentProps extends PropsType> = MergeProps<WithAs<CompType, ComponentProps>, React.ComponentProps<CompType>>;
/**
 * An empty object type
 */
type EmptyProps = Record<never, never>;
/**
 * PropsType can either be an object or null/undefined
 */
type PropsType = null | Record<string, any>;
/**
 * Adds the `as` prop to a component's props
 */
type WithAs<DefaultComponentType extends As, ComponentProps extends EmptyProps> = MergeProps<{
    as?: DefaultComponentType;
}, ComponentProps>;
/**
 * Wraps a component with a forwardRef and adds the `as` prop support
 */
export declare function forwardRefWithAs<ComponentProps extends PropsType, DefaultComponentType extends As = 'div'>(render: ForwardRefWithAsRenderFunction<DefaultComponentType, ComponentProps>): FunctionComponentWithAs<DefaultComponentType, ComponentProps>;
export {};