Reproduction link or steps
// src/entry.js
// @__NO_SIDE_EFFECTS__
export function wrapper(load) {
return {
load
}
}
export const pages = [wrapper(() => import('./page.js'))]// src/page.js
export const message = 'Hello from page.js'
// build.js
import path from 'node:path'
import { rolldown } from 'rolldown'
const root = import.meta.dirname
const build = await rolldown({
input: path.join(root, 'src/entry.js'),
platform: 'node'
})
await build.write({
dir: path.join(root, 'dist'),
format: 'esm',
entryFileNames: 'entry.js'
})What is expected?
// @__NO_SIDE_EFFECTS__
function wrapper(load) {
return {
load
}
}
const pages = [wrapper(() => import('./page-DuIEzloN.js'))];
export { pages, wrapper };What is actually happening?
//#region src/entry.js
/* @__NO_SIDE_EFFECTS__ */
function wrapper(load) {
return { load };
}
const pages = [/* @__PURE__ */ wrapper(() => void 0)];
//#endregion
export { pages, wrapper };System Info
System:
OS: Linux 6.12 Ubuntu 25.04 25.04 (Plucky Puffin)
CPU: (8) x64 AMD Ryzen 5 PRO 3400G with Radeon Vega Graphics
Memory: 1.72 GB / 13.58 GB
Container: Yes
Shell: 5.9 - /bin/zsh
Binaries:
Node: 24.14.1 - /cache/asdf/installs/nodejs/24.14.1/bin/node
npm: 11.11.0 - /cache/asdf/plugins/nodejs/shims/npm
pnpm: 10.33.0 - /cache/asdf/shims/pnpm
npmPackages:
rolldown: ^1.0.0-rc.15 => 1.0.0-rc.15Any additional comments?
Same setup with rollup works correctly.
OR if remove NO_SIDE_EFFECTS, rolldown works correctly
export function wrapper(load) {
return {
load
}
}
export const pages = [wrapper(() => import('./page.js'))]OR if wrapper is not exported, rolldown also works correctly
// @__NO_SIDE_EFFECTS__
function wrapper(load) {
return {
load
}
}
export const pages = [wrapper(() => import('./page.js'))]
Reproduction link or steps
What is expected?
What is actually happening?
System Info
System: OS: Linux 6.12 Ubuntu 25.04 25.04 (Plucky Puffin) CPU: (8) x64 AMD Ryzen 5 PRO 3400G with Radeon Vega Graphics Memory: 1.72 GB / 13.58 GB Container: Yes Shell: 5.9 - /bin/zsh Binaries: Node: 24.14.1 - /cache/asdf/installs/nodejs/24.14.1/bin/node npm: 11.11.0 - /cache/asdf/plugins/nodejs/shims/npm pnpm: 10.33.0 - /cache/asdf/shims/pnpm npmPackages: rolldown: ^1.0.0-rc.15 => 1.0.0-rc.15Any additional comments?
Same setup with rollup works correctly.
OR if remove NO_SIDE_EFFECTS, rolldown works correctly
OR if
wrapperis not exported, rolldown also works correctly