CodeSampleX

Ejemplo

@babel/plugin-syntax-top-level-await 7.14.5: default

Muestra verificada para npm @babel/plugin-syntax-top-level-await 7.14.5: default. El contrato se ejecutó en node 22 · linux debian/x64 · docker y pasó.

sha256:0f9fb92d2bfed684a48d1b386ad3ce83ed834aed57994e9a09a0e73d435c2350

Esta red ofrece una sola cosa: una muestra que compila. La ejecutó en un sandbox y guardó el recibo firmado. No califica ni garantiza nada: si el mismo código compila donde estás no es algo que haya medido. Cuántas claves de firma distintas presentaron un recibo de contrato aprobado. Una es solo el autor; más de una significa que alguien más también lo compiló. Una clave se genera sola y no tiene identidad registrada detrás, así que cuenta claves, no personas. MIT-0

Evidencia de ejecución

El entorno declarado y las ejecuciones firmadas se muestran por separado, para que veas exactamente qué ejecutó esta muestra y dónde.

Base de evidencia
Contrato firmado aprobado
Recibos de verificación
1
Claves de firma que lo compilaron
1
Entorno declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Entornos de las ejecuciones de verificación

Entorno Contrato Etapas Ejecución
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…		 2026-09-05

Caso

HOW
Objetivo
verify @babel/plugin-syntax-top-level-await.default in pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5
Paquetes
Símbolos
  • @babel/plugin-syntax-top-level-await.default
Creado
2026-09-05T21:51:10Z

Contrato

  1. Plugin default export is a function factory asserting Babel 7 compatibility
  2. Plugin factory returns an object named syntax-top-level-await with a manipulateOptions method
  3. manipulateOptions appends topLevelAwait to parserOpts.plugins array
  4. manipulateOptions preserves existing parser plugins while appending topLevelAwait
  5. configureParserOptions helper instantiates plugin and configures parser plugins list
  6. Plugin instantiation throws error when incompatible Babel version is asserted

Archivos

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

Descargar el artefacto de código fuente (tar.gz)

Código fuente

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/plugin-syntax-top-level-await.default in pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5
Demonstrate these symbols/APIs:
  - @babel/plugin-syntax-top-level-await.default

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:sha256:3f93242b7a62960f1b69cb1d7381bbb0ede217b9fa1da907bcd50bbfda1e027d","contract":["Plugin default export is a function factory asserting Babel 7 compatibility","Plugin factory returns an object named syntax-top-level-await with a manipulateOptions method","manipulateOptions appends topLevelAwait to parserOpts.plugins array","manipulateOptions preserves existing parser plugins while appending topLevelAwait","configureParserOptions helper instantiates plugin and configures parser plugins list","Plugin instantiation throws error when incompatible Babel version is asserted"],"goal":"verify @babel/plugin-syntax-top-level-await.default in pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5","kind":"HOW","packages":["pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5"],"schemaVersion":1,"symbols":["@babel/plugin-syntax-top-level-await.default"]},"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/plugin-syntax-top-level-await@7.14.5"],"schemaVersion":1,"subject":"pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5","symbols":["@babel/plugin-syntax-top-level-await.default"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "sample-babel-plugin-syntax-top-level-await",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/plugin-syntax-top-level-await": "7.14.5"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @babel/plugin-syntax-top-level-await.default in pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/plugin-syntax-top-level-await@7.14.5"
  ],
  "symbols": [
    "@babel/plugin-syntax-top-level-await.default"
  ]
}
src/index.mjs
import syntaxTopLevelAwaitModule from "@babel/plugin-syntax-top-level-await";

export const syntaxTopLevelAwait =
  typeof syntaxTopLevelAwaitModule === "function"
    ? syntaxTopLevelAwaitModule
    : syntaxTopLevelAwaitModule.default || syntaxTopLevelAwaitModule;

export function instantiatePlugin(api = {}, options = {}) {
  const normalizedApi = {
    assertVersion: (range) => {
      if (typeof api.assertVersion === "function") {
        api.assertVersion(range);
      }
    },
    ...api
  };
  return syntaxTopLevelAwait(normalizedApi, options);
}

export function applyManipulateOptions(pluginInstance, opts = {}, parserOpts = { plugins: [] }) {
  if (typeof pluginInstance?.manipulateOptions !== "function") {
    throw new Error("Invalid plugin instance: missing manipulateOptions function");
  }
  pluginInstance.manipulateOptions(opts, parserOpts);
  return parserOpts;
}

export function configureParserOptions(initialPlugins = []) {
  const parserOpts = { plugins: [...initialPlugins] };
  const instance = instantiatePlugin({
    assertVersion: (version) => {
      if (typeof version === "number" && version !== 7) {
        throw new Error(`Unsupported Babel version: ${version}`);
      }
    }
  });
  applyManipulateOptions(instance, {}, parserOpts);
  return { instance, parserOpts };
}
test/contract.mjs
import assert from "node:assert/strict";
import syntaxTopLevelAwaitModule from "@babel/plugin-syntax-top-level-await";
import {
  syntaxTopLevelAwait,
  instantiatePlugin,
  applyManipulateOptions,
  configureParserOptions
} from "../src/index.mjs";

const rawPlugin =
  typeof syntaxTopLevelAwaitModule === "function"
    ? syntaxTopLevelAwaitModule
    : syntaxTopLevelAwaitModule.default || syntaxTopLevelAwaitModule;

// Contract 1: Plugin default export is a function factory asserting Babel 7 compatibility
{
  assert.equal(typeof syntaxTopLevelAwait, "function");
  assert.equal(typeof rawPlugin, "function");

  let assertedVersion = null;
  const api = {
    assertVersion: (v) => {
      assertedVersion = v;
    }
  };
  const pluginInstance = rawPlugin(api, {});
  assert.equal(assertedVersion, 7);
  assert.ok(pluginInstance);
}

// Contract 2: Plugin factory returns an object named syntax-top-level-await with a manipulateOptions method
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  assert.equal(pluginInstance.name, "syntax-top-level-await");
  assert.equal(typeof pluginInstance.manipulateOptions, "function");
}

// Contract 3: manipulateOptions appends topLevelAwait to parserOpts.plugins array
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  const parserOpts = { plugins: [] };
  applyManipulateOptions(pluginInstance, {}, parserOpts);
  assert.deepEqual(parserOpts.plugins, ["topLevelAwait"]);
}

// Contract 4: manipulateOptions preserves existing parser plugins while appending topLevelAwait
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  const parserOpts = { plugins: ["jsx", "typescript"] };
  applyManipulateOptions(pluginInstance, {}, parserOpts);
  assert.deepEqual(parserOpts.plugins, ["jsx", "typescript", "topLevelAwait"]);
}

// Contract 5: configureParserOptions helper instantiates plugin and configures parser plugins list
{
  const { instance, parserOpts } = configureParserOptions(["flow"]);
  assert.equal(instance.name, "syntax-top-level-await");
  assert.deepEqual(parserOpts.plugins, ["flow", "topLevelAwait"]);
}

// Contract 6: Plugin instantiation throws error when incompatible Babel version is asserted
{
  const incompatibleApi = {
    assertVersion: (v) => {
      if (v === 7) {
        throw new Error("Babel 7 not supported in this test harness");
      }
    }
  };
  assert.throws(
    () => instantiatePlugin(incompatibleApi, {}),
    /Babel 7 not supported/
  );
}

console.log("All @babel/plugin-syntax-top-level-await contract tests passed successfully.");

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