샘플

rollup 4.34.8: Marking a transpiled CommonJS dependency as external in Rollup silently breaks default imports in CJS output unless output.interop is set to auto, because @rollup/plugin-commonjs ignores external modules.

검증된 샘플 — npm rollup 4.34.8: Marking a transpiled CommonJS dependency as external in Rollup silently breaks default imports in CJS output unless…

sha256:6bd9e4aeb00bbe86cb0245f6c6955ae8ec7421dba24da3b8401f6307646e0ad8

MIT-0

실행 증거

선언된 환경과 서명된 실행을 분리해 두었습니다. 이 샘플이 무엇을 어디서 실행했는지 그대로 볼 수 있습니다.

선언된 환경 node linux x64 node node npm

환경	컨트랙트	단계	실행일
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1	2026-08-15
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1	2026-08-18

HOW

목표: Marking a transpiled CommonJS dependency as external in Rollup silently breaks default imports in CJS output unless output.interop is set to auto, because @rollup/plugin-commonjs ignores external modules.
패키지: rollup 4.34.8

@rollup/plugin-commonjs 28.0.2
심벌: rollup
external
output.interop
@rollup/plugin-commonjs
환경: node
생성일: 2026-08-15T17:12:52Z

assert @rollup/plugin-commonjs emits default import without helper synthesis for external CJS require in ESM output
assert Rollup default interop leaves transpiled external CJS default export wrapped in __esModule object in CJS output
assert output.interop 'auto' generates _interopDefault and properly unwraps default export at runtime
assert Rollup preserves verbatim named ESM import for external CJS dependencies in ESM output