fix(nuxt): provide node16-style type exports

packages/kit/package.json

@@ -4,8 +4,14 @@
   "repository": "nuxt/nuxt",
   "license": "MIT",
   "type": "module",
-  "main": "./dist/index.mjs",
   "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs"
+    },
+    "./package.json": "./package.json"
+  },
   "files": [
     "dist"
   ],

packages/nuxt/app.d.ts

@@ -1 +1 @@
-export * from './dist/app'
+export * from './dist/app/index.js'

packages/nuxt/build.config.ts

@@ -7,15 +7,20 @@ export default defineBuildConfig({
     // Core
     { input: 'src/index' },
     // App
-    { input: 'src/app/', outDir: 'dist/app/' },
+    { input: 'src/app/', outDir: 'dist/app/', ext: 'js' },
     // Runtime dirs
     ...[
       'core',
       'head',
       'components',
       'pages'
-    ].map(name => ({ input: `src/${name}/runtime/`, outDir: `dist/${name}/runtime`, format: 'esm' } as BuildEntry))
+    ].map(name => ({ input: `src/${name}/runtime/`, outDir: `dist/${name}/runtime`, format: 'esm', ext: 'js' } as BuildEntry))
   ],
+  hooks: {
+    'mkdist:entry:options' (_ctx, _entry, mkdistOptions) {
+      mkdistOptions.addRelativeDeclarationExtensions = true
+    }
+  },
   dependencies: [
     'nuxi',
     'vue-router',

packages/nuxt/package.json

@@ -4,34 +4,48 @@
   "repository": "nuxt/nuxt",
   "license": "MIT",
   "type": "module",
-  "main": "./dist/index.mjs",
   "types": "./types.d.ts",
   "bin": {
     "nuxi": "./bin/nuxt.mjs",
     "nuxt": "./bin/nuxt.mjs"
   },
   "exports": {
-    ".": "./dist/index.mjs",
+    ".": {
+      "types": "./types.d.ts",
+      "import": "./dist/index.mjs"
+    },
     "./config": {
       "types": "./config.d.ts",
-      "import": "./config.mjs",
+      "import": "./config.js",
       "require": "./config.cjs"
     },
     "./schema": {
       "types": "./schema.d.ts",
-      "import": "./schema.mjs"
+      "import": "./schema.js"
     },
     "./kit": {
       "types": "./kit.d.ts",
-      "import": "./kit.mjs"
+      "import": "./kit.js"
+    },
+    "./app": {
+      "types": "./dist/app/index.d.ts",
+      "import": "./dist/app/index.js"
     },
-    "./app": "./dist/app/index.mjs",
     "./package.json": "./package.json"
   },
   "imports": {
-    "#app": "./dist/app/index.mjs",
-    "#head": "./dist/head/runtime/index.mjs",
-    "#pages": "./dist/pages/runtime/index.mjs"
+    "#app": {
+      "types": "./dist/app/index.d.ts",
+      "import": "./dist/app/index.js"
+    },
+    "#head": {
+      "types": "./dist/head/runtime/index.d.ts",
+      "import": "./dist/head/runtime/index.js"
+    },
+    "#pages": {
+      "types": "./dist/pages/runtime/index.d.ts",
+      "import": "./dist/pages/runtime/index.js"
+    }
   },
   "files": [
     "app.d.ts",

packages/nuxt/src/app/config.ts

@@ -1,6 +1,6 @@
 import { reactive } from 'vue'
-import { useNuxtApp } from './nuxt'
 import type { AppConfig } from 'nuxt/schema'
+import { useNuxtApp } from './nuxt'
 // @ts-ignore
 import __appConfig from '#build/app.config.mjs'
 

packages/nuxt/src/app/index.ts

@@ -1,12 +1,12 @@
 /// <reference path="types/augments.d.ts" />
 
 export * from './nuxt'
-export * from './composables'
-export * from './components'
+export * from './composables/index'
+export * from './components/index'
 export * from './config'
 
 // eslint-disable-next-line import/no-restricted-paths
-export type { PageMeta } from '../pages/runtime'
+export type { PageMeta } from '../pages/runtime/index'
 
 export const isVue2 = false
 export const isVue3 = true

packages/nuxt/src/app/nuxt.ts

@@ -6,9 +6,10 @@ import { createHooks } from 'hookable'
 import { getContext } from 'unctx'
 import type { SSRContext } from 'vue-bundle-renderer/runtime'
 import type { H3Event } from 'h3'
+import type { RuntimeConfig, AppConfigInput } from 'nuxt/schema'
+
 // eslint-disable-next-line import/no-restricted-paths
 import type { NuxtIslandContext } from '../core/runtime/nitro/renderer'
-import type { RuntimeConfig, AppConfigInput } from 'nuxt/schema'
 
 const nuxtAppCtx = /* #__PURE__ */ getContext<NuxtApp>('nuxt-app')
 

packages/nuxt/src/components/loader.ts

@@ -3,9 +3,10 @@ import { genDynamicImport, genImport } from 'knitwork'
 import MagicString from 'magic-string'
 import { pascalCase } from 'scule'
 import { resolve } from 'pathe'
+import type { Component, ComponentsOptions } from 'nuxt/schema'
+
 import { distDir } from '../dirs'
 import { isVueTemplate } from './helpers'
-import type { Component, ComponentsOptions } from 'nuxt/schema'
 
 interface LoaderOptions {
   getComponents (): Component[]

packages/nuxt/src/components/module.ts

@@ -1,13 +1,14 @@
 import { statSync } from 'node:fs'
 import { relative, resolve } from 'pathe'
 import { defineNuxtModule, resolveAlias, addTemplate, addPluginTemplate, updateTemplates } from '@nuxt/kit'
+import type { Component, ComponentsDir, ComponentsOptions } from 'nuxt/schema'
+
 import { distDir } from '../dirs'
 import { clientFallbackAutoIdPlugin } from './client-fallback-auto-id'
 import { componentsPluginTemplate, componentsTemplate, componentsIslandsTemplate, componentsTypeTemplate } from './templates'
 import { scanComponents } from './scan'
 import { loaderPlugin } from './loader'
 import { TreeShakeTemplatePlugin } from './tree-shake'
-import type { Component, ComponentsDir, ComponentsOptions } from 'nuxt/schema'
 
 const isPureObjectOrString = (val: any) => (!Array.isArray(val) && typeof val === 'object') || typeof val === 'string'
 const isDirectory = (p: string) => { try { return statSync(p).isDirectory() } catch (_e) { return false } }

packages/nuxt/src/core/app.ts

@@ -2,10 +2,10 @@ import { promises as fsp } from 'node:fs'
 import { dirname, resolve, join } from 'pathe'
 import { defu } from 'defu'
 import { findPath, resolveFiles, normalizePlugin, normalizeTemplate, compileTemplate, templateUtils, tryResolveModule, resolvePath, resolveAlias } from '@nuxt/kit'
+import type { Nuxt, NuxtApp, NuxtPlugin, NuxtTemplate, ResolvedNuxtTemplate } from 'nuxt/schema'
 
 import * as defaultTemplates from './templates'
 import { getNameFromPath, hasSuffix, uniqueBy } from './utils'
-import type { Nuxt, NuxtApp, NuxtPlugin, NuxtTemplate, ResolvedNuxtTemplate } from 'nuxt/schema'
 
 export function createApp (nuxt: Nuxt, options: Partial<NuxtApp> = {}): NuxtApp {
   return defu(options, {

packages/nuxt/src/core/builder.ts

@@ -2,9 +2,10 @@ import chokidar from 'chokidar'
 import { importModule, isIgnored } from '@nuxt/kit'
 import { debounce } from 'perfect-debounce'
 import { normalize } from 'pathe'
-import { createApp, generateApp as _generateApp } from './app'
 import type { Nuxt } from 'nuxt/schema'
 
+import { createApp, generateApp as _generateApp } from './app'
+
 export async function build (nuxt: Nuxt) {
   const app = createApp(nuxt)
   const generateApp = debounce(() => _generateApp(nuxt, app), undefined, { leading: true })

packages/nuxt/src/core/nitro.ts

@@ -9,9 +9,10 @@ import fsExtra from 'fs-extra'
 import { dynamicEventHandler } from 'h3'
 import { createHeadCore } from '@unhead/vue'
 import { renderSSRHead } from '@unhead/ssr'
+import type { Nuxt } from 'nuxt/schema'
+
 import { distDir } from '../dirs'
 import { ImportProtectionPlugin } from './plugins/import-protection'
-import type { Nuxt } from 'nuxt/schema'
 
 export async function initNitro (nuxt: Nuxt & { _nitro?: Nitro }) {
   // Resolve config

packages/nuxt/src/core/nuxt.ts

@@ -2,6 +2,7 @@ import { join, normalize, relative, resolve } from 'pathe'
 import { createHooks, createDebugger } from 'hookable'
 import type { LoadNuxtOptions } from '@nuxt/kit'
 import { resolvePath, resolveAlias, resolveFiles, loadNuxtConfig, nuxtCtx, installModule, addComponent, addVitePlugin, addWebpackPlugin, tryResolveModule, addPlugin } from '@nuxt/kit'
+import type { Nuxt, NuxtOptions, NuxtHooks } from 'nuxt/schema'
 
 import escapeRE from 'escape-string-regexp'
 import fse from 'fs-extra'
@@ -22,7 +23,6 @@ import { DevOnlyPlugin } from './plugins/dev-only'
 import { addModuleTranspiles } from './modules'
 import { initNitro } from './nitro'
 import schemaModule from './schema'
-import type { Nuxt, NuxtOptions, NuxtHooks } from 'nuxt/schema'
 
 export function createNuxt (options: NuxtOptions): Nuxt {
   const hooks = createHooks<NuxtHooks>()

packages/nuxt/src/imports/module.ts

@@ -2,9 +2,10 @@ import { addVitePlugin, addWebpackPlugin, defineNuxtModule, addTemplate, resolve
 import { isAbsolute, join, relative, resolve, normalize } from 'pathe'
 import type { Import, Unimport } from 'unimport'
 import { createUnimport, scanDirExports } from 'unimport'
+import type { ImportsOptions, ImportPresetWithDeprecation } from 'nuxt/schema'
+
 import { TransformPlugin } from './transform'
 import { defaultPresets } from './presets'
-import type { ImportsOptions, ImportPresetWithDeprecation } from 'nuxt/schema'
 
 export default defineNuxtModule<Partial<ImportsOptions>>({
   meta: {

packages/nuxt/src/pages/module.ts

@@ -4,11 +4,12 @@ import { join, relative, resolve } from 'pathe'
 import { genString, genImport, genObjectFromRawEntries } from 'knitwork'
 import escapeRE from 'escape-string-regexp'
 import { joinURL } from 'ufo'
+import type { NuxtApp, NuxtPage } from 'nuxt/schema'
+
 import { distDir } from '../dirs'
 import { resolvePagesRoutes, normalizeRoutes } from './utils'
 import type { PageMetaPluginOptions } from './page-meta'
 import { PageMetaPlugin } from './page-meta'
-import type { NuxtApp, NuxtPage } from 'nuxt/schema'
 
 export default defineNuxtModule({
   meta: {

packages/nuxt/src/pages/utils.ts

@@ -5,9 +5,10 @@ import { genImport, genDynamicImport, genArrayFromRaw, genSafeVariableName } fro
 import escapeRE from 'escape-string-regexp'
 import { filename } from 'pathe/utils'
 import { hash } from 'ohash'
-import { uniqueBy } from '../core/utils'
 import type { NuxtPage } from 'nuxt/schema'
 
+import { uniqueBy } from '../core/utils'
+
 enum SegmentParserState {
   initial,
   static,

packages/nuxt/test/scan-components.test.ts

@@ -1,8 +1,9 @@
 import { resolve } from 'node:path'
 import { expect, it, vi } from 'vitest'
-import { scanComponents } from '../src/components/scan'
 import type { ComponentsDir } from 'nuxt/schema'
 
+import { scanComponents } from '../src/components/scan'
+
 const fixtureDir = resolve(__dirname, 'fixture')
 const rFixture = (...p: string[]) => resolve(fixtureDir, ...p)
 

packages/schema/package.json

@@ -4,8 +4,14 @@
   "repository": "nuxt/nuxt",
   "license": "MIT",
   "type": "module",
-  "main": "./dist/index.mjs",
   "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs"
+    },
+    "./package.json": "./package.json"
+  },
   "files": [
     "dist",
     "schema"

packages/test-utils/package.json

@@ -4,8 +4,13 @@
   "repository": "nuxt/nuxt",
   "license": "MIT",
   "type": "module",
-  "exports": "./dist/index.mjs",
   "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs"
+    }
+  },
   "files": [
     "dist"
   ],

packages/test-utils/src/nuxt.ts

@@ -4,6 +4,7 @@ import * as _kit from '@nuxt/kit'
 import { useTestContext } from './context'
 
 // @ts-ignore type cast
+// eslint-disable-next-line
 const kit: typeof _kit = _kit.default || _kit
 
 const isNuxtApp = (dir: string) => {

packages/test-utils/src/runtime/global-setup.ts

@@ -2,6 +2,7 @@ import * as _kit from '@nuxt/kit'
 import { createTest, exposeContextToEnv } from '@nuxt/test-utils'
 
 // @ts-ignore type cast
+// eslint-disable-next-line
 const kit: typeof _kit = _kit.default || _kit
 
 const options = JSON.parse(process.env.NUXT_TEST_OPTIONS || '{}')

packages/test-utils/src/server.ts

@@ -7,6 +7,7 @@ import * as _kit from '@nuxt/kit'
 import { useTestContext } from './context'
 
 // @ts-ignore type cast
+// eslint-disable-next-line
 const kit: typeof _kit = _kit.default || _kit
 
 export async function startServer () {

packages/vite/package.json

@@ -5,7 +5,12 @@
   "license": "MIT",
   "type": "module",
   "types": "./dist/index.d.ts",
-  "exports": "./dist/index.mjs",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs"
+    }
+  },
   "files": [
     "dist"
   ],

packages/webpack/package.json

@@ -6,7 +6,10 @@
   "type": "module",
   "types": "./dist/index.d.ts",
   "exports": {
-    ".": "./dist/index.mjs",
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs"
+    },
     "./dist/*": "./dist/*"
   },
   "files": [

test/fixtures/basic/nuxt.config.ts

@@ -11,7 +11,16 @@ declare module 'nitropack' {
 }
 
 export default defineNuxtConfig({
-  typescript: { strict: true },
+  typescript: {
+    strict: true,
+    tsConfig: {
+      compilerOptions: {
+        // TODO: For testing (future) support for Node16-style module resolution.
+        // See https://github.com/nuxt/nuxt/issues/18426 and https://github.com/nuxt/nuxt/pull/18431
+        // moduleResolution: 'Node16'
+      }
+    }
+  },
   app: {
     pageTransition: true,
     layoutTransition: true,