Marcel 5afebde382 refactor(eslint): ban async vi.mock factories with dynamic import in body ...

Generalise the no-restricted-syntax rule from the literal pdfjs-dist
selector (added in #535) to also catch the underlying mechanism named in
ADR-012 / #553: any `vi.mock(..., async () => { ... await import(...)
... })` produces a late birpc roundtrip during worker teardown.

Selector: vi.mock CallExpression whose second argument is an
ArrowFunctionExpression with async=true and whose subtree contains an
AwaitExpression > ImportExpression. Both rules coexist — the literal
pdfjs-dist rule still enforces the libLoader prop injection pattern
(catches sync forms too); the new rule enforces the sync-factory
invariant universally.

Demonstrated by planting a synthetic offender locally and watching
ESLint flag it with the new rule's message.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-12 22:09:07 +02:00

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