backend-plugin-api: add ServiceFactoryOrFunction type

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/backend-plugin-api/api-report.md

@@ -347,6 +347,11 @@ export interface ServiceFactoryConfig<
   service: ServiceRef<TService, TScope>;
 }
 
+// @public
+export type ServiceFactoryOrFunction<TService = unknown> =
+  | ServiceFactory<TService>
+  | (() => ServiceFactory<TService>);
+
 // @public
 export type ServiceRef<
   TService,
@@ -364,7 +369,7 @@ export interface ServiceRefConfig<TService, TScope extends 'root' | 'plugin'> {
   // (undocumented)
   defaultFactory?: (
     service: ServiceRef<TService, TScope>,
-  ) => Promise<ServiceFactory<TService> | (() => ServiceFactory<TService>)>;
+  ) => Promise<ServiceFactoryOrFunction<TService>>;
   // (undocumented)
   id: string;
   // (undocumented)

packages/backend-plugin-api/src/services/system/index.ts

@@ -20,5 +20,6 @@ export type {
   TypesToServiceRef,
   ServiceFactory,
   ServiceFactoryConfig,
+  ServiceFactoryOrFunction,
 } from './types';
 export { createServiceRef, createServiceFactory } from './types';

packages/backend-plugin-api/src/services/system/types.ts

@@ -71,13 +71,22 @@ export type ServiceFactory<TService = unknown> =
       >;
     };
 
+/**
+ * Represents either a {@link ServiceFactory} or a function that returns one.
+ *
+ * @public
+ */
+export type ServiceFactoryOrFunction<TService = unknown> =
+  | ServiceFactory<TService>
+  | (() => ServiceFactory<TService>);
+
 /** @public */
 export interface ServiceRefConfig<TService, TScope extends 'root' | 'plugin'> {
   id: string;
   scope?: TScope;
   defaultFactory?: (
     service: ServiceRef<TService, TScope>,
-  ) => Promise<ServiceFactory<TService> | (() => ServiceFactory<TService>)>;
+  ) => Promise<ServiceFactoryOrFunction<TService>>;
 }
 
 /**