Improve typing of StateReducer

Co-Authored-By: Marco Ciampini <[email protected]>
WordPress · Jul 28, 2022 · 30d7c31 · 30d7c31
1 parent 502ad98
commit 30d7c31
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/packages/components/src/input-control/reducer/state.ts b/packages/components/src/input-control/reducer/state.ts
@@ -19,9 +19,11 @@ export interface InputState {
 	value?: string;
 }
 
-export type StateReducer< SpecializedAction = Action > = Reducer<
+export type StateReducer< SpecializedAction = {} > = Reducer<
 	InputState,
-	InputAction | SpecializedAction
+	SpecializedAction extends Action
+		? InputAction | SpecializedAction
+		: InputAction
 >;
 
 export const initialStateReducer: StateReducer = ( state: InputState ) => state;