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// @strict: true
declare class Component<P> {
constructor(props: Readonly<P>);
constructor(props: P, context?: any);
readonly props: Readonly<P> & Readonly<{ children?: {} }>;
}
interface ComponentClass<P = {}> {
new (props: P, context?: any): Component<P>;
propTypes?: WeakValidationMap<P>;
defaultProps?: Partial<P>;
displayName?: string;
}
interface FunctionComponent<P = {}> {
(props: P & { children?: {} }, context?: any): {} | null;
propTypes?: WeakValidationMap<P>;
defaultProps?: Partial<P>;
displayName?: string;
}
declare const nominalTypeHack: unique symbol;
interface Validator<T> {
(
props: object,
propName: string,
componentName: string,
location: string,
propFullName: string
): Error | null;
[nominalTypeHack]?: T;
}
type WeakValidationMap<T> = {
[K in keyof T]?: null extends T[K]
? Validator<T[K] | null | undefined>
: undefined extends T[K]
? Validator<T[K] | null | undefined>
: Validator<T[K]>
};
type ComponentType<P = {}> = ComponentClass<P> | FunctionComponent<P>;
type Shared<
InjectedProps,
DecorationTargetProps extends Shared<InjectedProps, DecorationTargetProps>
> = {
[P in Extract<
keyof InjectedProps,
keyof DecorationTargetProps
>]?: InjectedProps[P] extends DecorationTargetProps[P]
? DecorationTargetProps[P]
: never
};
// Infers prop type from component C
type GetProps<C> = C extends ComponentType<infer P> ? P : never;
type ConnectedComponentClass<C extends ComponentType<any>, P> = ComponentClass<
P
> & {
WrappedComponent: C;
};
type Matching<InjectedProps, DecorationTargetProps> = {
[P in keyof DecorationTargetProps]: P extends keyof InjectedProps
? InjectedProps[P] extends DecorationTargetProps[P]
? DecorationTargetProps[P]
: InjectedProps[P]
: DecorationTargetProps[P]
};
type Omit<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
type InferableComponentEnhancerWithProps<TInjectedProps, TNeedsProps> = <
C extends ComponentType<Matching<TInjectedProps, GetProps<C>>>
>(
component: C
) => ConnectedComponentClass<
C,
Omit<GetProps<C>, keyof Shared<TInjectedProps, GetProps<C>>> & TNeedsProps
>;
declare const connect: {
<no_state = {}, TDispatchProps = {}, TOwnProps = {}>(
mapStateToProps: null | undefined,
mapDispatchToProps: TDispatchProps
): InferableComponentEnhancerWithProps<
ResolveThunks<TDispatchProps>,
TOwnProps
>;
};
type InferThunkActionCreatorType<
TActionCreator extends (...args: any[]) => any
> = TActionCreator extends (
...args: infer TParams
) => (...args: any[]) => infer TReturn
? (...args: TParams) => TReturn
: TActionCreator;
type HandleThunkActionCreator<TActionCreator> = TActionCreator extends (
...args: any[]
) => any
? InferThunkActionCreatorType<TActionCreator>
: TActionCreator;
type ResolveThunks<TDispatchProps> = TDispatchProps extends {
[key: string]: any;
}
? { [C in keyof TDispatchProps]: HandleThunkActionCreator<TDispatchProps[C]> }
: TDispatchProps;
interface Dispatch<A extends Action = AnyAction> {
<T extends A>(action: T): T;
}
interface Action<T = any> {
type: T;
}
interface AnyAction extends Action {
[extraProps: string]: any;
}
const simpleAction = (payload: boolean) => ({
type: "SIMPLE_ACTION",
payload
});
const thunkAction = (param1: number, param2: string) => async (
dispatch: Dispatch,
{ foo }: OwnProps
) => {
return foo;
};
interface OwnProps {
foo: string;
}
interface TestComponentProps extends OwnProps {
simpleAction: typeof simpleAction;
thunkAction(param1: number, param2: string): Promise<string>;
}
class TestComponent extends Component<TestComponentProps> {}
const mapDispatchToProps = { simpleAction, thunkAction };
type Q = HandleThunkActionCreator<typeof simpleAction>;
const Test1 = connect(
null,
mapDispatchToProps
)(TestComponent);
export {};
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