From 15e604f2f37524a9bc39e35a61bc6d26696fd31e Mon Sep 17 00:00:00 2001
From: Frank Tan <tansongyang@gmail.com>
Date: Sun, 27 Aug 2017 16:11:16 -0400
Subject: [PATCH] [react-redux] Make `connect` input types optional

For convenience.
---
 types/react-redux/index.d.ts            | 22 +++++++++++-----------
 types/react-redux/react-redux-tests.tsx | 10 +++++-----
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/types/react-redux/index.d.ts b/types/react-redux/index.d.ts
index b83252a745..44c18a91a5 100644
--- a/types/react-redux/index.d.ts
+++ b/types/react-redux/index.d.ts
@@ -67,66 +67,66 @@ export type InferableComponentEnhancer<TInjectedProps> =
  */
 export declare function connect(): InferableComponentEnhancer<DispatchProp<any>>;
 
-export declare function connect<TStateProps, no_dispatch, TOwnProps>(
+export declare function connect<TStateProps = {}, no_dispatch = {}, TOwnProps = {}>(
     mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps>
 ): InferableComponentEnhancerWithProps<TStateProps & DispatchProp<any>, TOwnProps>;
 
-export declare function connect<no_state, TDispatchProps, TOwnProps>(
+export declare function connect<no_state = {}, TDispatchProps = {}, TOwnProps = {}>(
     mapStateToProps: null | undefined,
     mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>
 ): InferableComponentEnhancerWithProps<TDispatchProps, TOwnProps>;
 
-export declare function connect<TStateProps, TDispatchProps, TOwnProps>(
+export declare function connect<TStateProps = {}, TDispatchProps = {}, TOwnProps = {}>(
     mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps>,
     mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>
 ): InferableComponentEnhancerWithProps<TStateProps & TDispatchProps, TOwnProps>;
 
-export declare function connect<TStateProps, no_dispatch, TOwnProps, TMergedProps>(
+export declare function connect<TStateProps = {}, no_dispatch = {}, TOwnProps = {}, TMergedProps = {}>(
     mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps>,
     mapDispatchToProps: null | undefined,
     mergeProps: MergeProps<TStateProps, undefined, TOwnProps, TMergedProps>,
 ): InferableComponentEnhancerWithProps<TMergedProps, TOwnProps>;
 
-export declare function connect<no_state, TDispatchProps, TOwnProps, TMergedProps>(
+export declare function connect<no_state = {}, TDispatchProps = {}, TOwnProps = {}, TMergedProps = {}>(
     mapStateToProps: null | undefined,
     mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>,
     mergeProps: MergeProps<undefined, TDispatchProps, TOwnProps, TMergedProps>,
 ): InferableComponentEnhancerWithProps<TMergedProps, TOwnProps>;
 
-export declare function connect<no_state, no_dispatch, TOwnProps, TMergedProps>(
+export declare function connect<no_state = {}, no_dispatch = {}, TOwnProps = {}, TMergedProps = {}>(
     mapStateToProps: null | undefined,
     mapDispatchToProps: null | undefined,
     mergeProps: MergeProps<undefined, undefined, TOwnProps, TMergedProps>,
 ): InferableComponentEnhancerWithProps<TMergedProps, TOwnProps>;
 
-export declare function connect<TStateProps, TDispatchProps, TOwnProps, TMergedProps>(
+export declare function connect<TStateProps = {}, TDispatchProps = {}, TOwnProps = {}, TMergedProps = {}>(
     mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps>,
     mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>,
     mergeProps: MergeProps<TStateProps, TDispatchProps, TOwnProps, TMergedProps>,
 ): InferableComponentEnhancerWithProps<TMergedProps, TOwnProps>;
 
-export declare function connect<TStateProps, no_dispatch, TOwnProps>(
+export declare function connect<TStateProps = {}, no_dispatch = {}, TOwnProps = {}>(
     mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps>,
     mapDispatchToProps: null | undefined,
     mergeProps: null | undefined,
     options: Options<TStateProps, TOwnProps>
 ): InferableComponentEnhancerWithProps<DispatchProp<any> & TStateProps, TOwnProps>;
 
-export declare function connect<no_state, TDispatchProps, TOwnProps>(
+export declare function connect<no_state = {}, TDispatchProps = {}, TOwnProps = {}>(
     mapStateToProps: null | undefined,
     mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>,
     mergeProps: null | undefined,
     options: Options<no_state, TOwnProps>
 ): InferableComponentEnhancerWithProps<TDispatchProps, TOwnProps>;
 
-export declare function connect<TStateProps, TDispatchProps, TOwnProps>(
+export declare function connect<TStateProps = {}, TDispatchProps = {}, TOwnProps = {}>(
     mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps>,
     mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>,
     mergeProps: null | undefined,
     options: Options<TStateProps, TOwnProps>
 ): InferableComponentEnhancerWithProps<TStateProps & TDispatchProps, TOwnProps>;
 
-export declare function connect<TStateProps, TDispatchProps, TOwnProps, TMergedProps>(
+export declare function connect<TStateProps = {}, TDispatchProps = {}, TOwnProps = {}, TMergedProps = {}>(
     mapStateToProps: MapStateToPropsParam<TStateProps, TOwnProps>,
     mapDispatchToProps: MapDispatchToPropsParam<TDispatchProps, TOwnProps>,
     mergeProps: MergeProps<TStateProps, TDispatchProps, TOwnProps, TMergedProps>,
diff --git a/types/react-redux/react-redux-tests.tsx b/types/react-redux/react-redux-tests.tsx
index 5a9b038dc5..619a25a7df 100644
--- a/types/react-redux/react-redux-tests.tsx
+++ b/types/react-redux/react-redux-tests.tsx
@@ -57,26 +57,26 @@ interface ICounterDispatchProps {
     onIncrement: () => void
 }
 // with higher order functions
-connect<ICounterStateProps, ICounterDispatchProps, {}>(
+connect<ICounterStateProps, ICounterDispatchProps>(
     () => mapStateToProps,
     () => mapDispatchToProps
 )(Counter);
 // with higher order functions using parameters
-connect<ICounterStateProps, ICounterDispatchProps, {}>(
+connect<ICounterStateProps, ICounterDispatchProps>(
     (initialState: CounterState, ownProps) => mapStateToProps,
     (dispatch: Dispatch<CounterState>, ownProps) => mapDispatchToProps
 )(Counter);
 // only first argument
-connect<ICounterStateProps, {}, {}>(
+connect<ICounterStateProps>(
     () => mapStateToProps
 )(Counter);
 // wrap only one argument
-connect<ICounterStateProps, ICounterDispatchProps, {}>(
+connect<ICounterStateProps, ICounterDispatchProps>(
     mapStateToProps,
     () => mapDispatchToProps
 )(Counter);
 // with extra arguments
-connect<ICounterStateProps, ICounterDispatchProps, {}, ICounterStateProps & ICounterDispatchProps>(
+connect<ICounterStateProps, ICounterDispatchProps, ICounterStateProps & ICounterDispatchProps>(
     () => mapStateToProps,
     () => mapDispatchToProps,
     (s: ICounterStateProps, d: ICounterDispatchProps) =>