Fix esm property def in flight loader (#66990)
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6 changed files with 35 additions and 21 deletions
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@ -517,6 +517,13 @@ export default async function getBaseWebpackConfig(
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babel: useSWCLoader ? swcDefaultLoader : babelLoader!,
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}
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const nextFlightLoader = {
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loader: 'next-flight-loader',
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options: {
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isEdgeServer,
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},
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}
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const appServerLayerLoaders = hasAppDir
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? [
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// When using Babel, we will have to add the SWC loader
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@ -530,7 +537,7 @@ export default async function getBaseWebpackConfig(
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: []
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const instrumentLayerLoaders = [
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'next-flight-loader',
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nextFlightLoader,
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// When using Babel, we will have to add the SWC loader
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// as an additional pass to handle RSC correctly.
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// This will cause some performance overhead but
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@ -540,7 +547,7 @@ export default async function getBaseWebpackConfig(
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].filter(Boolean)
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const middlewareLayerLoaders = [
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'next-flight-loader',
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nextFlightLoader,
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// When using Babel, we will have to use SWC to do the optimization
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// for middleware to tree shake the unused default optimized imports like "next/server".
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// This will cause some performance overhead but
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@ -1352,9 +1359,7 @@ export default async function getBaseWebpackConfig(
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isEdgeServer,
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}),
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},
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use: {
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loader: 'next-flight-loader',
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},
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use: nextFlightLoader,
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},
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]
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: []),
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@ -54,6 +54,9 @@ export default function transformSource(
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throw new Error('Expected source to have been transformed to a string.')
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}
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const options = this.getOptions()
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const { isEdgeServer } = options
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// Assign the RSC meta information to buildInfo.
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// Exclude next internal files which are not marked as client files
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const buildInfo = getModuleBuildInfo(this._module)
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@ -97,21 +100,29 @@ export default function transformSource(
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return
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}
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// `proxy` is the module proxy that we treat the module as a client boundary.
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// For ESM, we access the property of the module proxy directly for each export.
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// This is bit hacky that treating using a CJS like module proxy for ESM's exports,
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// but this will avoid creating nested proxies for each export. It will be improved in the future.
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// Explanation for: await createProxy(...)
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// We need to await the module proxy creation because it can be async module for SSR layer
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// due to having async dependencies.
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// We only apply `the await` for Node.js as only Edge doesn't have external dependencies.
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let esmSource = `\
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import { createProxy } from "${MODULE_PROXY_PATH}"
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const proxy = ${isEdgeServer ? '' : 'await'} createProxy(String.raw\`${resourceKey}\`)
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`
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let cnt = 0
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for (const ref of clientRefs) {
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if (ref === '') {
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esmSource += `\nexports[''] = createProxy(String.raw\`${resourceKey}#\`);`
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esmSource += `exports[''] = proxy['']\n`
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} else if (ref === 'default') {
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esmSource += `\
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export default createProxy(String.raw\`${resourceKey}#default\`);
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`
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esmSource += `export default proxy.default;\n`
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} else {
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esmSource += `
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const e${cnt} = createProxy(String.raw\`${resourceKey}#${ref}\`);
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export { e${cnt++} as ${ref} };`
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esmSource += `const e${cnt} = proxy["${ref}"];\n`
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esmSource += `export { e${cnt++} as ${ref} };\n`
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}
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}
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@ -262,7 +262,7 @@ async function createComponentTreeInternal({
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}
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const LayoutOrPage: React.ComponentType<any> | undefined = layoutOrPageMod
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? await interopDefault(layoutOrPageMod)
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? interopDefault(layoutOrPageMod)
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: undefined
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/**
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@ -15,7 +15,7 @@ function convertModule<P>(
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// Cases:
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// mod: { default: Component }
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// mod: Component
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// mod: { $$typeof, default: proxy(Component) }
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// mod: { default: proxy(Component) }
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// mod: proxy(Component)
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const hasDefault = mod && 'default' in mod
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return {
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@ -1,16 +1,14 @@
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import { FileRef, nextTestSetup } from 'e2e-utils'
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import path from 'path'
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import { nextTestSetup } from 'e2e-utils'
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describe('referencing a client component in an app route', () => {
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const { next } = nextTestSetup({
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files: new FileRef(path.join(__dirname)),
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files: __dirname,
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})
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it('responds without error', async () => {
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expect(JSON.parse(await next.render('/runtime'))).toEqual({
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// Turbopack's proxy components are functions
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clientComponent: process.env.TURBOPACK ? 'function' : 'object',
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myModuleClientComponent: process.env.TURBOPACK ? 'function' : 'object',
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clientComponent: 'function',
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myModuleClientComponent: 'function',
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})
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})
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})
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@ -2,7 +2,7 @@ import dynamic from 'next/dynamic'
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const Button = dynamic(() =>
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import('./client').then((mod) => {
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return mod.Button
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return { default: mod.Button }
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})
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)
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