Ejemplo
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
Caso
- Objetivo
- 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
- Paquetes
- @babel/core 8.0.1 @babel/preset-env 8.0.2
- Entorno
- node
- Creado
- 2026-08-16T15:45:42Z
Lo que suele suponerse
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.
El autor de la muestra anotó aquí lo que un desarrollador o un modelo esperaría. El contrato de abajo es lo que realmente se ejecutó.
Contrato
- 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.
Archivos
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Descargar el artefacto verificado (tar.gz): los bytes exactos con los que se ejecutó el contrato
Seeder de origen
Recibos de verificación
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-16 · ed25519:d91480838ac982c9