Exemple
Verify how @babel/preset-env resolves ES module transformation and dynamic imports across default auto mode, caller ESM capabilities, and explicit CommonJS or UMD targets
sha256:c4a33343c181512f335c90867036291efc6169df72e7fcf2cb0b89ddd867174f
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Cas
- Objectif
- Verify how @babel/preset-env resolves ES module transformation and dynamic imports across default auto mode, caller ESM capabilities, and explicit CommonJS or UMD targets HOW
- Paquets
- @babel/core 8.0.1 @babel/preset-env 8.0.2
- Environnement
- node
- Créé
- 2026-08-16T15:45:42Z
Ce que l'on suppose souvent
Default modules: 'auto' in @babel/preset-env transpiles ES module import and export declarations into CommonJS require and exports statements unless an explicit bundler caller signals supportsStaticESM: true.
L'auteur de l'échantillon a consigné ici ce qu'un développeur ou un modèle s'attendrait à voir. Le contrat ci-dessous est ce qui s'est réellement exécuté.
Contrat
- Default modules: 'auto' preserves static ES module import and export declarations untouched in standard execution rather than compiling them to CommonJS require and exports.
- Default modules: 'auto' still desugars export * as ns syntax unless caller explicitly declares supportsExportNamespaceFrom: true, while modules: false preserves export * as unconditionally.
- Passing caller with supportsStaticESM: false triggers CommonJS module compilation for static imports and exports while keeping dynamic import native by default.
- Configuring modules: 'commonjs' transforms both static imports and dynamic imports to CommonJS require unless transform-dynamic-import is explicitly excluded.
- Configuring modules: 'umd' wraps static module syntax in UMD factory boilerplate while preserving native dynamic import expressions.
Fichiers
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Télécharger l'artefact vérifié (tar.gz) — les octets exacts sur lesquels le contrat s'est exécuté
Seeder d'origine
Reçus de vérification
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-16 · ed25519:d91480838ac982c9