improve types around __next_app__

Author: lubieowoce

packages/next/src/build/templates/app-page.ts

@@ -21,8 +21,8 @@ export { tree, pages }
 export { default as GlobalError } from 'VAR_MODULE_GLOBAL_ERROR' with { 'turbopack-transition': 'next-server-utility' }
 
 // These are injected by the loader afterwards.
-declare const __next_app_require__: any
-declare const __next_app_load_chunk__: any
+declare const __next_app_require__: (id: string | number) => unknown
+declare const __next_app_load_chunk__: (id: string | number) => Promise<unknown>
 
 // INJECT:__next_app_require__
 // INJECT:__next_app_load_chunk__

packages/next/src/server/app-render/app-render.tsx

@@ -1117,7 +1117,9 @@ async function renderToHTMLOrFlightImpl(
     // to treat chunk loading with similar semantics as cache reads to avoid
     // async loading chunks from causing a prerender to abort too early.
     // @ts-ignore
-    globalThis.__next_chunk_load__ = (...args: Array<any>) => {
+    globalThis.__next_chunk_load__ = (
+      ...args: Parameters<typeof instrumented.loadChunk>
+    ) => {
       const loadingChunk = instrumented.loadChunk(...args)
       trackChunkLoading(loadingChunk)
       return loadingChunk

packages/next/src/server/client-component-renderer-logger.ts

@@ -1,15 +1,19 @@
+import type { AppPageModule } from './route-modules/app-page/module'
+
 // Combined load times for loading client components
 let clientComponentLoadStart = 0
 let clientComponentLoadTimes = 0
 let clientComponentLoadCount = 0
 
-export function wrapClientComponentLoader(ComponentMod: any) {
+export function wrapClientComponentLoader(
+  ComponentMod: AppPageModule
+): AppPageModule['__next_app__'] {
   if (!('performance' in globalThis)) {
     return ComponentMod.__next_app__
   }
 
   return {
-    require: (...args: any[]) => {
+    require: (...args) => {
       const startTime = performance.now()
 
       if (clientComponentLoadStart === 0) {
@@ -23,7 +27,7 @@ export function wrapClientComponentLoader(ComponentMod: any) {
         clientComponentLoadTimes += performance.now() - startTime
       }
     },
-    loadChunk: (...args: any[]) => {
+    loadChunk: (...args) => {
       const startTime = performance.now()
       try {
         return ComponentMod.__next_app__.loadChunk(...args)