Exemplo

@babel/core 7.22.5: loadPartialConfigAsync

Amostra verificada para npm @babel/core 7.22.5: loadPartialConfigAsync. O contrato rodou em node 22 · linux debian/x64 · docker e passou.

sha256:9c26e2e1dfdaae584841ae17a7054935d8f59b57fe8852380e2038a5098e11ec

MIT-0

Evidência de execução

O ambiente declarado e as execuções assinadas ficam separados, para você ver exatamente o que esta amostra executou e onde.

Base da evidência: Contrato assinado aprovado
Recibos de verificação: 1
Chaves de assinatura que o compilaram: 1

Ambiente declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Ambientes das execuções de verificação

Ambiente	Contrato	Etapas	Execução
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…	2026-09-04

Caso

HOW

Objetivo: verify @babel/core.loadPartialConfigAsync in pkg:npm/%40babel/core@7.22.5
Pacotes: @babel/core 7.22.5
Símbolos: @babel/core.loadPartialConfigAsync
Criado: 2026-09-04T13:48:03Z

Contrato

loadPartialConfigAsync returns a Promise resolving to a PartialConfig object containing options and fileHandling
loadPartialConfigAsync merges provided inline configuration options such as sourceMaps and minified
loadPartialConfigAsync resolves to null when the target file matches an ignore pattern
loadPartialConfigAsync rejects with an Error when invalid or unknown options are provided
loadPartialConfigAsync normalizes plugin declarations into ConfigItem objects within options.plugins

Arquivos

PROMPT.md
csx.json
package-lock.json
package.json
spec.json
src/index.mjs
test/contract.mjs

Baixar o artefato de código-fonte (tar.gz)

Código-fonte

PROMPT.md

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify @babel/core.loadPartialConfigAsync in pkg:npm/%40babel/core@7.22.5
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/core@7.22.5
Demonstrate these symbols/APIs:
  - @babel/core.loadPartialConfigAsync

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

csx.json

{"case":{"caseId":"case:sha256:edb089f33ad10568e308d0c16bcba5f19901d90954d83d55e5fe845623c8411e","contract":["loadPartialConfigAsync returns a Promise resolving to a PartialConfig object containing options and fileHandling","loadPartialConfigAsync merges provided inline configuration options such as sourceMaps and minified","loadPartialConfigAsync resolves to null when the target file matches an ignore pattern","loadPartialConfigAsync rejects with an Error when invalid or unknown options are provided","loadPartialConfigAsync normalizes plugin declarations into ConfigItem objects within options.plugins"],"goal":"verify @babel/core.loadPartialConfigAsync in pkg:npm/%40babel/core@7.22.5","kind":"HOW","packages":["pkg:npm/%40babel/core@7.22.5"],"schemaVersion":1,"symbols":["@babel/core.loadPartialConfigAsync"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40babel/core@7.22.5"],"schemaVersion":1,"subject":"pkg:npm/%40babel/core@7.22.5","symbols":["@babel/core.loadPartialConfigAsync"],"verifierAdapter":"node-typescript@1"}

package-lock.json

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      "name": "sample-babel-core-load-partial-config-async",
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package.json

{
  "name": "sample-babel-core-load-partial-config-async",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/core": "7.22.5"
  }
}

spec.json

{
  "schemaVersion": 1,
  "goal": "verify @babel/core.loadPartialConfigAsync in pkg:npm/%40babel/core@7.22.5",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/core@7.22.5"
  ],
  "symbols": [
    "@babel/core.loadPartialConfigAsync"
  ]
}

src/index.mjs

import { loadPartialConfigAsync } from "@babel/core";

export async function loadConfigAsync(options = {}) {
  return await loadPartialConfigAsync(options);
}

export async function isConfigIgnored(options = {}) {
  const config = await loadPartialConfigAsync(options);
  return config === null;
}

export async function getResolvedOptions(options = {}) {
  const config = await loadPartialConfigAsync(options);
  return config ? config.options : null;
}

test/contract.mjs

import assert from "node:assert/strict";
import { loadPartialConfigAsync } from "@babel/core";
import {
  loadConfigAsync,
  isConfigIgnored,
  getResolvedOptions
} from "../src/index.mjs";

// Test 1: loadPartialConfigAsync returns a Promise resolving to a PartialConfig object containing options and fileHandling
{
  const configPromise = loadPartialConfigAsync({
    configFile: false,
    babelrc: false
  });
  assert.ok(configPromise instanceof Promise);

  const config = await configPromise;
  assert.ok(config);
  assert.equal(typeof config, "object");
  assert.equal(typeof config.hasFilesystemConfig, "function");
  assert.equal(config.hasFilesystemConfig(), false);
  assert.equal(config.fileHandling, "transpile");
  assert.ok(config.options);
  assert.equal(typeof config.options, "object");
  assert.equal(config.options.configFile, false);
  assert.equal(config.options.babelrc, false);

  const helperResult = await loadConfigAsync({
    configFile: false,
    babelrc: false
  });
  assert.ok(helperResult);
  assert.equal(helperResult.fileHandling, "transpile");
}

// Test 2: loadPartialConfigAsync merges provided inline configuration options such as sourceMaps and minified
{
  const config = await loadPartialConfigAsync({
    configFile: false,
    babelrc: false,
    sourceMaps: true,
    minified: true,
    comments: false
  });
  assert.ok(config);
  assert.equal(config.options.sourceMaps, true);
  assert.equal(config.options.minified, true);
  assert.equal(config.options.comments, false);

  const resolvedOpts = await getResolvedOptions({
    configFile: false,
    babelrc: false,
    sourceMaps: "inline"
  });
  assert.equal(resolvedOpts.sourceMaps, "inline");
}

// Test 3: loadPartialConfigAsync resolves to null when the target file matches an ignore pattern
{
  const result = await loadPartialConfigAsync({
    configFile: false,
    babelrc: false,
    filename: "ignored-module.js",
    ignore: ["ignored-module.js"]
  });
  assert.equal(result, null);

  const isIgnored = await isConfigIgnored({
    configFile: false,
    babelrc: false,
    filename: "ignored-module.js",
    ignore: ["ignored-module.js"]
  });
  assert.equal(isIgnored, true);

  const isNotIgnored = await isConfigIgnored({
    configFile: false,
    babelrc: false,
    filename: "active-module.js",
    ignore: ["ignored-module.js"]
  });
  assert.equal(isNotIgnored, false);
}

// Test 4: loadPartialConfigAsync rejects with an Error when invalid or unknown options are provided
{
  await assert.rejects(
    async () => {
      await loadPartialConfigAsync({
        nonExistentBabelOption: true
      });
    },
    {
      name: "Error",
      message: /Unknown option: \.nonExistentBabelOption/
    }
  );

  await assert.rejects(
    async () => {
      await loadConfigAsync({
        anotherInvalidOption: 123
      });
    },
    {
      name: "Error",
      message: /Unknown option: \.anotherInvalidOption/
    }
  );
}

// Test 5: loadPartialConfigAsync normalizes plugin declarations into ConfigItem objects within options.plugins
{
  const dummyPlugin = () => ({ visitor: {} });
  const config = await loadPartialConfigAsync({
    configFile: false,
    babelrc: false,
    plugins: [dummyPlugin]
  });
  assert.ok(config);
  assert.ok(Array.isArray(config.options.plugins));
  assert.equal(config.options.plugins.length, 1);

  const pluginItem = config.options.plugins[0];
  assert.ok(pluginItem);
  assert.equal(pluginItem.value, dummyPlugin);
}

console.log("All @babel/core.loadPartialConfigAsync contract tests passed successfully.");

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