use type alias

Feiyang1 · Feiyang1 · commit 91f0ec92379d · 2021-05-04T15:48:11.000-07:00
diff --git a/packages/component/src/provider.ts b/packages/component/src/provider.ts
@@ -265,7 +265,7 @@ export class Provider<T extends Name> {
    *
    * @returns a function to unregister the callback
    */
-  onInit(callback: (instance: NameServiceMapping[T]) => void): () => void {
+  onInit(callback: OnInitCallBack<T>): () => void {
     this.onInitCallbacks.add(callback);
 
     return () => {

Original file line number	Diff line number	Diff line change
`@@ -265,7 +265,7 @@ export class Provider<T extends Name> {`
`265`	`265`	`*`
`266`	`266`	`* @returns a function to unregister the callback`
`267`	`267`	`*/`
`268`		`- onInit(callback: (instance: NameServiceMapping[T]) => void): () => void {`
	`268`	`+ onInit(callback: OnInitCallBack<T>): () => void {`
`269`	`269`	`this.onInitCallbacks.add(callback);`
`270`	`270`
`271`	`271`	`return () => {`