CodeSampleX

Ejemplo

@rollup/plugin-commonjs 28.0.7: dynamicRequireTargets

Muestra verificada para npm @rollup/plugin-commonjs 28.0.7: dynamicRequireTargets. El contrato se ejecutó en node 22 · linux debian/x64 · docker y pasó.

sha256:3bac020ad2c6937c671060a36f638dc0157aa3d3d425b110efe2bdbd53f324cd

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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…		 2026-09-03

Caso

HOW
Objetivo
verify dynamicRequireTargets in pkg:npm/%40rollup/plugin-commonjs@28.0.7
Paquetes
Símbolos
  • dynamicRequireTargets
Entorno
node 22.23.2
Creado
2026-09-03T09:39:50Z

Contrato

  1. CommonJS dynamic require calls fail at runtime with an error prompting configuration of dynamicRequireTargets when dynamicRequireTargets is not configured.
  2. Configuring dynamicRequireTargets with glob patterns bundles matching CommonJS modules into the dynamic module registry and allows dynamic require calls to successfully resolve and execute them at runtime.
  3. Dynamic require calls across multiple target modules correctly preserve exported functions, objects, and return values.
  4. Negation glob patterns prefixed with '!' in dynamicRequireTargets exclude specified modules from being bundled, causing dynamic require calls for those excluded files to throw an error.
  5. Dynamic require calls targeting unconfigured or nonexistent file paths throw an error indicating the file could not be dynamically required.

Archivos

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.mjs
  • test/fixtures/caller.cjs
  • test/fixtures/dynamic/greeter.cjs
  • test/fixtures/dynamic/ignored.cjs
  • test/fixtures/dynamic/math.cjs
  • test/fixtures/entry.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 dynamicRequireTargets in pkg:npm/%40rollup/plugin-commonjs@28.0.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40rollup/plugin-commonjs@28.0.7
Demonstrate these symbols/APIs:
  - dynamicRequireTargets
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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:sha256:26ccdd503ee32a7b55241564e900cb2b884cc6a39e8136c72b86a9c07838c4d6","constraints":{"executionContext":"node"},"contract":["CommonJS dynamic require calls fail at runtime with an error prompting configuration of dynamicRequireTargets when dynamicRequireTargets is not configured.","Configuring dynamicRequireTargets with glob patterns bundles matching CommonJS modules into the dynamic module registry and allows dynamic require calls to successfully resolve and execute them at runtime.","Dynamic require calls across multiple target modules correctly preserve exported functions, objects, and return values.","Negation glob patterns prefixed with '!' in dynamicRequireTargets exclude specified modules from being bundled, causing dynamic require calls for those excluded files to throw an error.","Dynamic require calls targeting unconfigured or nonexistent file paths throw an error indicating the file could not be dynamically required."],"goal":"verify dynamicRequireTargets in pkg:npm/%40rollup/plugin-commonjs@28.0.7","kind":"HOW","packages":["pkg:npm/%40rollup/plugin-commonjs@28.0.7"],"schemaVersion":1,"symbols":["dynamicRequireTargets"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40rollup/plugin-commonjs@28.0.7"],"schemaVersion":1,"subject":"pkg:npm/%40rollup/plugin-commonjs@28.0.7","symbols":["dynamicRequireTargets"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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      "name": "sample-rollup-plugin-commonjs-dynamic-require-targets",
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      }
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      "license": "MIT",
      "engines": {
        "node": ">=12"
      },
      "funding": {
        "url": "https://github.com/sponsors/jonschlinkert"
      }
    },
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      "license": "MIT",
      "dependencies": {
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      "bin": {
        "rollup": "dist/bin/rollup"
      },
      "engines": {
        "node": ">=18.0.0",
        "npm": ">=8.0.0"
      },
      "optionalDependencies": {
        "@rollup/rollup-android-arm-eabi": "4.34.8",
        "@rollup/rollup-android-arm64": "4.34.8",
        "@rollup/rollup-darwin-arm64": "4.34.8",
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      "license": "MIT"
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}
package.json
{
  "name": "sample-rollup-plugin-commonjs-dynamic-require-targets",
  "version": "1.0.0",
  "private": true,
  "description": "Clean-room verification of @rollup/plugin-commonjs dynamicRequireTargets",
  "type": "module",
  "license": "MIT-0",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "@rollup/plugin-commonjs": "28.0.7",
    "rollup": "4.34.8"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify dynamicRequireTargets in pkg:npm/%40rollup/plugin-commonjs@28.0.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40rollup/plugin-commonjs@28.0.7"
  ],
  "symbols": [
    "dynamicRequireTargets"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
src/index.js
import * as rollup from 'rollup';
import commonjs from '@rollup/plugin-commonjs';

/**
 * Bundles code using Rollup with @rollup/plugin-commonjs configured,
 * then dynamically imports the resulting ESM bundle.
 *
 * @param {string} inputPath - Entry point file path.
 * @param {object} [pluginOptions] - Options passed to @rollup/plugin-commonjs.
 * @returns {Promise<any>} The evaluated module namespace.
 */
export async function bundleWithCommonjs(inputPath, pluginOptions = {}) {
  const bundle = await rollup.rollup({
    input: inputPath,
    plugins: [
      commonjs(pluginOptions)
    ]
  });

  const { output } = await bundle.generate({ format: 'esm' });
  const base64Uri = 'data:text/javascript;base64,' + Buffer.from(output[0].code).toString('base64');
  return await import(base64Uri);
}
test/contract.mjs
import assert from 'node:assert/strict';
import { bundleWithCommonjs } from '../src/index.js';

const entryPath = 'test/fixtures/entry.mjs';

// 1. Without dynamicRequireTargets, dynamic require calls throw at runtime
{
  const mod = await bundleWithCommonjs(entryPath);
  assert.throws(
    () => mod.loadModule('greeter.cjs'),
    (err) =>
      err instanceof Error &&
      err.message.includes('Could not dynamically require') &&
      err.message.includes('dynamicRequireTargets')
  );
}

// 2. With dynamicRequireTargets matching glob pattern, modules are loaded dynamically
{
  const mod = await bundleWithCommonjs(entryPath, {
    dynamicRequireTargets: ['test/fixtures/dynamic/*.cjs']
  });

  const greeter = mod.loadModule('greeter.cjs');
  assert.equal(typeof greeter.greet, 'function');
  assert.equal(greeter.greet('CodeSampleX'), 'Hello, CodeSampleX!');

  const math = mod.loadModule('math.cjs');
  assert.equal(typeof math.add, 'function');
  assert.equal(math.add(10, 25), 35);

  const ignored = mod.loadModule('ignored.cjs');
  assert.equal(ignored.secret, 'ignored-secret');
}

// 3. Negation glob pattern prefixed with '!' excludes specified modules from bundling
{
  const mod = await bundleWithCommonjs(entryPath, {
    dynamicRequireTargets: [
      'test/fixtures/dynamic/*.cjs',
      '!test/fixtures/dynamic/ignored.cjs'
    ]
  });

  const greeter = mod.loadModule('greeter.cjs');
  assert.equal(greeter.greet('World'), 'Hello, World!');

  assert.throws(
    () => mod.loadModule('ignored.cjs'),
    (err) =>
      err instanceof Error &&
      err.message.includes('Could not dynamically require')
  );
}

// 4. Dynamic require for unconfigured or non-existent file path throws
{
  const mod = await bundleWithCommonjs(entryPath, {
    dynamicRequireTargets: ['test/fixtures/dynamic/*.cjs']
  });

  assert.throws(
    () => mod.loadModule('nonexistent.cjs'),
    (err) =>
      err instanceof Error &&
      err.message.includes('Could not dynamically require')
  );
}

console.log('Contract assertions passed successfully.');
test/fixtures/caller.cjs
function loadModule(name) {
  return require('./dynamic/' + name);
}

module.exports = { loadModule };
test/fixtures/dynamic/greeter.cjs
module.exports = {
  greet(name) {
    return 'Hello, ' + name + '!';
  }
};
test/fixtures/dynamic/ignored.cjs
module.exports = {
  secret: 'ignored-secret'
};
test/fixtures/dynamic/math.cjs
module.exports = {
  add(a, b) {
    return a + b;
  }
};
test/fixtures/entry.mjs
import { loadModule } from './caller.cjs';
export { loadModule };

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