Exemple

Verify how @babel/preset-env resolves input domain edges across empty target queries, numeric target versions, and regex feature filters

sha256:4075ed00db008acfd57b6abf92a49a1a778223299d8463bfe3a57491b60666c2

Cas

Objectif

Verify how @babel/preset-env resolves input domain edges across empty target queries, numeric target versions, and regex feature filters HOW

Paquets

@babel/preset-env 8.0.2 @babel/core 8.0.1

Environnement

node

Créé

2026-08-16T17:26:03Z

Ce que l'on suppose souvent

Setting targets to an empty array [] behaves identically to an empty object {} by defaulting to the standard baseline and leaving modern syntax untranspiled.

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

• Passing targets: [] resolves to an empty environment matching zero engines and forces full ES5 transpilation of modern arrow functions and const declarations, whereas targets: {} defaults to the modern baseline.
• Passing targets: { node: 0 } coerces numeric 0 to Node version 0.0.0 and forces full ES5 transpilation, while targets: { node: true } targets the active Node.js runtime.
• Setting targets.node to false or null throws a target validation error rather than disabling or ignoring the Node target.
• Passing a RegExp in include that matches zero registered preset plugins throws an invalid plugin error at preset initialization instead of acting as a no-op filter.
• Specifying overlapping plugins between include and exclude via string or regex expansion throws a preset validation error rejecting duplicate entries.
• Passing include: null throws an unhandled TypeError on length, while include: undefined or empty string is safely handled.
• Calling transformIncludesAndExcludes parses string and RegExp filters into separate plugin and builtIn Sets.

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

csx-seed

Reçus de vérification

• node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-16 · ed25519:d91480838ac982c9