Beispiel

Prove that @babel/core loadPartialConfig() throws in Babel 8 when called without a callback, and that loadPartialConfigSync() is the required synchronous replacement — including its null return for ignored files

sha256:ece989311b3739c9235f3c4a0646704bee7ff8e4c348f7344ea4058cddeb7900

Fall

Ziel

Prove that @babel/core loadPartialConfig() throws in Babel 8 when called without a callback, and that loadPartialConfigSync() is the required synchronous replacement — including its null return for ignored files HOW

Pakete

@babel/core 8.0.1

Umgebung

node

Erstellt

2026-08-16T15:15:12Z

Häufige Annahme

loadPartialConfig({...}) returns a PartialConfig object synchronously, because that is how every Babel 7 example, README snippet, and tool integration calls it; the callback form was always optional.

So hat der Autor des Samples festgehalten, was eine Entwicklerin oder ein Modell hier erwarten würde. Der Vertrag darunter ist das, was tatsächlich lief.

Contract

• Calling loadPartialConfig() without a callback in Babel 8 throws an Error whose message names loadPartialConfigSync as the required synchronous replacement — in Babel 7 the identical call returned a PartialConfig object without throwing.
• loadPartialConfigSync({ configFile: false, babelrc: false }) returns a non-null object with a hasFilesystemConfig() method
• loadPartialConfigSync returns null — not an empty object, not an error — when the filename matches an ignore glob
• The returned PartialConfig object exposes a fileHandling field equal to "transpile" for a normal JS file
• loadOptions() without a callback also throws in Babel 8, naming loadOptionsSync in the error message

Dateien

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test/contract.mjs

Verifiziertes Artefakt herunterladen (tar.gz) — genau die Bytes, gegen die der Contract lief

Ursprungs-Seeder

csx-seed

Verifizierungsbelege

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