Repository navigation
Bundled binary crashes with TypeError on namespace re-exports #18525
Description
Bug description
The Bun-bundled binary crashes at startup with errors like:
TypeError: undefined is not an object (evaluating 'Snapshot2.FileDiff.array')
TypeError: undefined is not an object (evaluating 'ProviderAuth2.Authorization.optional')
Root cause
Nine facade files (e.g. src/snapshot/index.ts, src/provider/auth.ts) re-export values from a service module inside a TypeScript namespace:
import { Snapshot as S } from "./service"
export namespace Snapshot {
export const FileDiff = S.FileDiff
}Bun's bundler transpiles this into self-referential assignments (Snapshot.FileDiff = Snapshot.FileDiff). When circular imports delay module initialization, the right-hand side is undefined.
Steps to reproduce
- Introduce any circular dependency chain that passes through one of these facade modules
- Build with
bun run build --single - Run the binary — crashes before startup completes
Expected behavior
Binary starts without TypeError.
Environment
- Bun 1.3.10
- opencode built with
--singleflag
Metadata
Metadata
Assignees
Labels
No labels
Activity
github-actions commentedon Mar 21, 2026
This issue might be a duplicate of an existing issue. Please check:
build.ts --singleproduces black screen + freeze #18451: Same crash —TypeError: undefined is not an object (evaluating 'Snapshot2.FileDiff.array')— caused by the same circular dependency / namespace re-export problem in the--singlebundled binary. That issue also tracks the bisect result and links to related PRs (fix: apply Layer.fresh at instance service definition site #18418, fix: switch consumers to service imports to break bundle cycles #18438).Please check whether #18451 already covers your case. If so, it may be best to add any new details there.
github-actions commentedon Jul 4, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.