cloudflare/vinext
Build failure: non-hoisted SWC helpers cause deploy script failure
クローズ
#1,511 opened on 2026/05/22
adapter-api-e2ehelp wanted
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説明
This issue was created by an agent analysing CI failures from the Next.js Deploy Suite (vinext
mainvs Next.jsv16.2.6, 2026-05-22).
Problem
Test handle-non-hoisted-swc-helpers fails the entire build with Custom deploy script failed: undefined (1). The vinext build pipeline cannot handle code where SWC helpers (e.g. _inherits, _classCallCheck) end up non-hoisted in the bundled output.
Non-hoisted SWC helpers cause deploy script failure
Estimated Impact
~1 test failures across the deploy suite.
Affected Test Suites
test/e2e/handle-non-hoisted-swc-helpers/index.test.ts
Recommendation
-
Reproduce first in vinext's own test suite. Add a page that uses class inheritance and ensure the SWC helpers are not hoisted to the top of the output bundle.
-
Hoist helpers in the transform. Make sure helper declarations are emitted at the top of each chunk.
Part of #1328.