Cannot use in Vite 8 with `tsgo: true` without `enforce: pre`

[kube]

Reproduction link or steps

Here is a PR setting up rolldown-plugin-dts in one of our packages:

hashintel/hash#8509

Describe the bug

I understand that this is not meant to be used in Vite 8 yet, but wanted to give it a try.

The current setup working for me is to enforce: pre on the fake-js plugin:

dts({ tsgo: true }).map((plugin) =>
  // Ensure runs before Vite's native TypeScript transform
  plugin.name.endsWith("fake-js") ? { ...plugin, enforce: "pre" } : plugin,
)

Maybe this could be enforced somehow in the Rolldown plugin directly (I know the Plugin types are different between them, but would be convenient)

---

When using the plugin as is: (with tsgo)

dts({ tsgo: true })

I get this error:

transforming (1178) src/components/spreadsheet.tsx🐼 info [hrtime] Extracted in (126.93ms)
✓ 1185 modules transformed.
✗ Build failed in 5.97s
error during build:
Build failed with 1 error:

[MISSING_EXPORT] Error: "isSDCPNEqual" is not exported by "src/lib/deep-equal.d.ts".
   ╭─[ src/petrinaut.d.ts:3:10 ]
   │
 3 │ export { isSDCPNEqual } from "./lib/deep-equal";
   │          ──────┬─────  
   │                ╰─────── Missing export
───╯

    at aggregateBindingErrorsIntoJsError (file:///Users/HASH/Code/hash/cf-petrinaut-tsgo-dts/libs/@hashintel/petrinaut/node_modules/vite/node_modules/rolldown/dist/shared/error-BYPsvVEN.mjs:52:18)
    at unwrapBindingResult (file:///Users/HASH/Code/hash/cf-petrinaut-tsgo-dts/libs/@hashintel/petrinaut/node_modules/vite/node_modules/rolldown/dist/shared/error-BYPsvVEN.mjs:22:128)
    at #build (file:///Users/HASH/Code/hash/cf-petrinaut-tsgo-dts/libs/@hashintel/petrinaut/node_modules/vite/node_modules/rolldown/dist/shared/rolldown-build-BsRSEDqH.mjs:3356:34)
    at async buildEnvironment (file:///Users/HASH/Code/hash/cf-petrinaut-tsgo-dts/libs/@hashintel/petrinaut/node_modules/vite/dist/node/chunks/node.js:32703:64)
    at async Object.build (file:///Users/HASH/Code/hash/cf-petrinaut-tsgo-dts/libs/@hashintel/petrinaut/node_modules/vite/dist/node/chunks/node.js:33125:19)
    at async Object.buildApp (file:///Users/HASH/Code/hash/cf-petrinaut-tsgo-dts/libs/@hashintel/petrinaut/node_modules/vite/dist/node/chunks/node.js:33122:153)
    at async CAC.<anonymous> (file:///Users/HASH/Code/hash/cf-petrinaut-tsgo-dts/libs/@hashintel/petrinaut/node_modules/vite/dist/node/cli.js:642:3) {
  errors: [Getter/Setter]
}

System Info

System:
    OS: macOS 26.3
    CPU: (10) arm64 Apple M1 Max
    Memory: 1.79 GB / 64.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.21.1 - /Users/HASH/.local/share/mise/installs/node/22.21.1/bin/node
    Yarn: 4.12.0 - /Users/HASH/.local/share/mise/installs/node/22.21.1/bin/yarn
    npm: 10.9.4 - /Users/HASH/.local/share/mise/installs/node/22.21.1/bin/npm
  Browsers:
    Chrome: 145.0.7632.160
    Safari: 26.3

Validations

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• Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• The provided reproduction is a minimal reproducible of the bug.

Contributions

• I am willing to submit a PR to fix this issue
• I am willing to submit a PR with failing tests (actually just go ahead and do it, thanks!)

Compensating engineering work will speed up resolution and support the project

• I'm willing to offer $16 for financial support