fix(nuxt): provide typescript aliases for core packages (#26158)

packages/nuxt/src/app/components/nuxt-island.ts

@@ -9,8 +9,7 @@ import { joinURL, withQuery } from 'ufo'
 import type { FetchResponse } from 'ofetch'
 import { join } from 'pathe'
 
-// eslint-disable-next-line import/no-restricted-paths
-import type { NuxtIslandResponse } from '../../core/runtime/nitro/renderer'
+import type { NuxtIslandResponse } from '../types'
 import { useNuxtApp, useRuntimeConfig } from '../nuxt'
 import { prerenderRoutes, useRequestEvent } from '../composables/ssr'
 import { getFragmentHTML } from './utils'

packages/nuxt/src/app/nuxt.ts

@@ -11,8 +11,7 @@ import type { AppConfig, AppConfigInput, RuntimeConfig } from 'nuxt/schema'
 import type { RenderResponse } from 'nitropack'
 import type { MergeHead, VueHeadClient } from '@unhead/vue'
 
-// eslint-disable-next-line import/no-restricted-paths
-import type { NuxtIslandContext } from '../core/runtime/nitro/renderer'
+import type { NuxtIslandContext } from '../app/types'
 import type { RouteMiddleware } from '../app/composables/router'
 import type { NuxtError } from '../app/composables/error'
 import type { AsyncDataRequestStatus } from '../app/composables/asyncData'

packages/nuxt/src/app/types.ts

@@ -4,3 +4,6 @@ export type { PageMeta } from '../pages/runtime/index'
 export interface NuxtAppLiterals {
   [key: string]: string
 }
+
+// eslint-disable-next-line import/no-restricted-paths
+export type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from '../core/runtime/nitro/renderer'

packages/nuxt/src/core/nuxt.ts

@@ -1,8 +1,9 @@
-import { join, normalize, relative, resolve } from 'pathe'
+import { dirname, join, normalize, relative, resolve } from 'pathe'
 import { createDebugger, createHooks } from 'hookable'
 import type { LoadNuxtOptions } from '@nuxt/kit'
 import { addBuildPlugin, addComponent, addPlugin, addRouteMiddleware, addVitePlugin, addWebpackPlugin, installModule, loadNuxtConfig, logger, nuxtCtx, resolveAlias, resolveFiles, resolvePath, tryResolveModule, useNitro } from '@nuxt/kit'
 import type { Nuxt, NuxtHooks, NuxtOptions } from 'nuxt/schema'
+import { resolvePackageJSON } from 'pkg-types'
 
 import escapeRE from 'escape-string-regexp'
 import fse from 'fs-extra'
@@ -61,6 +62,17 @@ async function initNuxt (nuxt: Nuxt) {
   nuxtCtx.set(nuxt)
   nuxt.hook('close', () => nuxtCtx.unset())
 
+  const coreTypePackages = ['nitropack', 'defu', 'h3', '@unhead/vue', 'vue', 'vue-router', '@nuxt/schema']
+  const paths = Object.fromEntries(await Promise.all(coreTypePackages.map(async pkg => {
+    const path = await resolvePath(pkg).then(r => resolvePackageJSON(r))
+    return [pkg, [dirname(path)]]
+  })))
+
+  // Set nitro resolutions for types that might be obscured with shamefully-hoist=false
+  nuxt.options.nitro.typescript = defu(nuxt.options.nitro.typescript, {
+    tsConfig: { compilerOptions: { paths } }
+  })
+
   // Add nuxt types
   nuxt.hook('prepare:types', (opts) => {
     opts.references.push({ types: 'nuxt' })
@@ -73,6 +85,9 @@ async function initNuxt (nuxt: Nuxt) {
     opts.references.push({ path: resolve(nuxt.options.buildDir, 'types/schema.d.ts') })
     opts.references.push({ path: resolve(nuxt.options.buildDir, 'types/app.config.d.ts') })
 
+    // Set Nuxt resolutions for types that might be obscured with shamefully-hoist=false
+    opts.tsConfig.compilerOptions = defu(opts.tsConfig.compilerOptions, { paths })
+
     for (const layer of nuxt.options._layers) {
       const declaration = join(layer.cwd, 'index.d.ts')
       if (fse.existsSync(declaration)) {

packages/nuxt/src/core/templates.ts

@@ -8,7 +8,6 @@ import { hash } from 'ohash'
 import { camelCase } from 'scule'
 import { filename } from 'pathe/utils'
 import type { NuxtTemplate } from 'nuxt/schema'
-import { tryResolveModule } from '@nuxt/kit'
 
 import { annotatePlugins, checkForCircularDependencies } from './app'
 
@@ -223,14 +222,13 @@ export const middlewareTemplate: NuxtTemplate = {
 
 export const nitroSchemaTemplate: NuxtTemplate = {
   filename: 'types/nitro-nuxt.d.ts',
-  async getContents ({ nuxt }) {
-    const localH3 = await tryResolveModule('h3', nuxt.options.modulesDir) || 'h3'
+  getContents () {
     return /* typescript */`
 /// <reference path="./schema.d.ts" />
 
 import type { RuntimeConfig } from 'nuxt/schema'
-import type { H3Event } from '${localH3}'
-import type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from 'nuxt/dist/core/runtime/nitro/renderer'
+import type { H3Event } from 'h3'
+import type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from 'nuxt/app'
 
 declare module 'nitropack' {
   interface NitroRuntimeConfigApp {
@@ -264,11 +262,10 @@ export const useRuntimeConfig = () => window?.__NUXT__?.config || {}
 
 export const appConfigDeclarationTemplate: NuxtTemplate = {
   filename: 'types/app.config.d.ts',
-  async getContents ({ app, nuxt }) {
-    const localDefu = await tryResolveModule('defu', nuxt.options.modulesDir) || 'defu'
+  getContents ({ app, nuxt }) {
     return `
 import type { CustomAppConfig } from 'nuxt/schema'
-import type { Defu } from '${localDefu}'
+import type { Defu } from 'defu'
 ${app.configs.map((id: string, index: number) => `import ${`cfg${index}`} from ${JSON.stringify(id.replace(/(?<=\w)\.\w+$/g, ''))}`).join('\n')}
 
 declare const inlineConfig = ${JSON.stringify(nuxt.options.appConfig, null, 2)}
@@ -302,11 +299,10 @@ declare module '@nuxt/schema' {
 export const appConfigTemplate: NuxtTemplate = {
   filename: 'app.config.mjs',
   write: true,
-  async getContents ({ app, nuxt }) {
-    const localDefu = await tryResolveModule('defu', nuxt.options.modulesDir) || 'defu'
+  getContents ({ app, nuxt }) {
     return `
 import { updateAppConfig } from '#app/config'
-import { defuFn } from '${localDefu}'
+import { defuFn } from 'defu'
 
 const inlineConfig = ${JSON.stringify(nuxt.options.appConfig, null, 2)}
 

packages/nuxt/types.d.mts

@@ -4,7 +4,7 @@ export * from './dist/index.js'
 import type { DefineNuxtConfig } from 'nuxt/config'
 import type { RuntimeConfig, SchemaDefinition } from 'nuxt/schema'
 import type { H3Event } from 'h3'
-import type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from './dist/core/runtime/nitro/renderer.js'
+import type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from './dist/app/types.js'
 
 declare global {
   const defineNuxtConfig: DefineNuxtConfig

packages/nuxt/types.d.ts

@@ -4,7 +4,7 @@ export * from './dist/index'
 import type { DefineNuxtConfig } from 'nuxt/config'
 import type { RuntimeConfig, SchemaDefinition } from 'nuxt/schema'
 import type { H3Event } from 'h3'
-import type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from './dist/core/runtime/nitro/renderer'
+import type { NuxtIslandContext, NuxtIslandResponse, NuxtRenderHTMLContext } from './dist/app/types'
 
 declare global {
   const defineNuxtConfig: DefineNuxtConfig

test/basic.test.ts

@@ -7,9 +7,10 @@ import { join, normalize } from 'pathe'
 import { $fetch, createPage, fetch, isDev, setup, startServer, url, useTestContext } from '@nuxt/test-utils/e2e'
 import { $fetchComponent } from '@nuxt/test-utils/experimental'
 
-import type { NuxtIslandResponse } from '../packages/nuxt/src/core/runtime/nitro/renderer'
 import { expectNoClientErrors, expectWithPolling, gotoPath, isRenderingJson, parseData, parsePayload, renderPage } from './utils'
 
+import type { NuxtIslandResponse } from '#app'
+
 const isWebpack = process.env.TEST_BUILDER === 'webpack'
 const isTestingAppManifest = process.env.TEST_MANIFEST !== 'manifest-off'