CodeSampleX

Ejemplo

@rollup/plugin-commonjs 28.0.2: ignore

Muestra verificada para npm @rollup/plugin-commonjs 28.0.2: ignore. El contrato se ejecutó en node 22 · linux debian/x64 · docker y pasó.

sha256:82dba8bbc306dc7ab056edef447bd185873aaa0c1f2079d966ca3aab7636d901

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 ignore in pkg:npm/%40rollup/plugin-commonjs@28.0.2
Paquetes
Símbolos
  • ignore
Entorno
node 22.23.2
Creado
2026-09-03T14:37:36Z

Contrato

  1. By default, @rollup/plugin-commonjs converts static require calls into static imports, hoisting deferred require statements out of function bodies.
  2. Passing an array of module IDs to the ignore option leaves targeted require calls unconverted inside function bodies while converting non-ignored dependencies.
  3. Passing a predicate function to the ignore option selectively leaves matching require specifiers unconverted based on dynamic condition evaluation.
  4. Specifying multiple module IDs simultaneously in the ignore array preserves unconverted require calls for all matched dependencies.
  5. An ignored require statement preserves deferred execution semantics, only invoking ambient require when called at runtime.

Archivos

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • 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 ignore in pkg:npm/%40rollup/plugin-commonjs@28.0.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40rollup/plugin-commonjs@28.0.2
Demonstrate these symbols/APIs:
  - ignore

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:sha256:8f4355028c1422444e0d4d54f3839a7f86e1628e095df88a65fba1866ea1a63f","constraints":{"executionContext":"node"},"contract":["By default, @rollup/plugin-commonjs converts static require calls into static imports, hoisting deferred require statements out of function bodies.","Passing an array of module IDs to the ignore option leaves targeted require calls unconverted inside function bodies while converting non-ignored dependencies.","Passing a predicate function to the ignore option selectively leaves matching require specifiers unconverted based on dynamic condition evaluation.","Specifying multiple module IDs simultaneously in the ignore array preserves unconverted require calls for all matched dependencies.","An ignored require statement preserves deferred execution semantics, only invoking ambient require when called at runtime."],"goal":"verify ignore in pkg:npm/%40rollup/plugin-commonjs@28.0.2","kind":"HOW","packages":["pkg:npm/%40rollup/plugin-commonjs@28.0.2"],"schemaVersion":1,"symbols":["ignore"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","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@28.0.2"],"schemaVersion":1,"subject":"pkg:npm/%40rollup/plugin-commonjs@28.0.2","symbols":["ignore"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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}
package.json
{
  "name": "sample-rollup-plugin-commonjs-ignore",
  "version": "1.0.0",
  "dependencies": {
    "@rollup/plugin-commonjs": "28.0.2",
    "rollup": "4.62.4"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify ignore in pkg:npm/%40rollup/plugin-commonjs@28.0.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40rollup/plugin-commonjs@28.0.2"
  ],
  "symbols": [
    "ignore"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { rollup } from 'rollup';
import commonjs from '@rollup/plugin-commonjs';

async function bundleEntry(sourceCode, pluginOptions = {}, format = 'es') {
  const entryId = 'virtual-entry.js';
  const bundle = await rollup({
    input: entryId,
    external: (id) => id !== entryId,
    plugins: [
      {
        name: 'virtual-loader',
        resolveId(id) {
          if (id === entryId) return id;
          return null;
        },
        load(id) {
          if (id === entryId) return sourceCode;
          return null;
        }
      },
      commonjs(pluginOptions)
    ]
  });
  const { output } = await bundle.generate({ format });
  return output[0].code;
}

function evaluateBundle(code, ambientRequire = () => { throw new Error('unexpected ambient require'); }) {
  const fn = new Function('exports', 'module', 'require', code);
  const mod = { exports: {} };
  fn(mod.exports, mod, ambientRequire);
  return mod.exports;
}

async function runContracts() {
  const sampleCode = `
    const eagerDep = require('eager-lib');
    function lazyLoad() {
      return require('optional-native-addon');
    }
    module.exports = { eagerDep, lazyLoad };
  `;

  // Contract 1: By default, @rollup/plugin-commonjs converts static require calls into static imports, hoisting deferred require statements out of function bodies.
  {
    const code = await bundleEntry(sampleCode, {}, 'es');
    assert.match(
      code,
      /import\s+require\$\$\d+\s+from\s+['"]eager-lib['"]/,
      'By default eager-lib is converted to static top-level import'
    );
    assert.match(
      code,
      /import\s+require\$\$\d+\s+from\s+['"]optional-native-addon['"]/,
      'By default optional-native-addon is hoisted and converted to top-level import'
    );
    assert.doesNotMatch(
      code,
      /require\(['"]optional-native-addon['"]\)/,
      'Default transform removes unconverted require call from lazyLoad function body'
    );
  }

  // Contract 2: Passing an array of module IDs to the ignore option leaves targeted require calls unconverted inside function bodies while converting non-ignored dependencies.
  {
    const code = await bundleEntry(sampleCode, { ignore: ['optional-native-addon'] }, 'es');
    assert.match(
      code,
      /import\s+require\$\$\d+\s+from\s+['"]eager-lib['"]/,
      'Non-ignored dependency eager-lib is converted to top-level import'
    );
    assert.doesNotMatch(
      code,
      /import\s+.*\s+from\s+['"]optional-native-addon['"]/,
      'Ignored dependency must not be converted to a top-level import'
    );
    assert.match(
      code,
      /require\(['"]optional-native-addon['"]\)/,
      'Targeted require call remains unconverted in generated code'
    );
  }

  // Contract 3: Passing a predicate function to the ignore option selectively leaves matching require specifiers unconverted based on dynamic condition evaluation.
  {
    const recordedIds = [];
    const code = await bundleEntry(
      sampleCode,
      {
        ignore: (id) => {
          recordedIds.push(id);
          return id.includes('native-addon');
        }
      },
      'es'
    );

    assert(recordedIds.includes('eager-lib'), 'Predicate should be invoked for eager-lib');
    assert(recordedIds.includes('optional-native-addon'), 'Predicate should be invoked for optional-native-addon');
    assert.match(
      code,
      /import\s+require\$\$\d+\s+from\s+['"]eager-lib['"]/,
      'Non-matching dependency converts to static import'
    );
    assert.match(
      code,
      /require\(['"]optional-native-addon['"]\)/,
      'Matching dependency remains unconverted as require()'
    );
    assert.doesNotMatch(
      code,
      /import\s+.*\s+from\s+['"]optional-native-addon['"]/,
      'Matching dependency does not create static import'
    );
  }

  // Contract 4: Specifying multiple module IDs simultaneously in the ignore array preserves unconverted require calls for all matched dependencies.
  {
    const multiRequireCode = `
      const mod1 = require('ignored-one');
      const mod2 = require('ignored-two');
      const mod3 = require('converted-three');
      module.exports = { mod1, mod2, mod3 };
    `;
    const code = await bundleEntry(
      multiRequireCode,
      { ignore: ['ignored-one', 'ignored-two'] },
      'es'
    );

    assert.match(code, /require\(['"]ignored-one['"]\)/, 'ignored-one remains unconverted');
    assert.match(code, /require\(['"]ignored-two['"]\)/, 'ignored-two remains unconverted');
    assert.match(code, /import\s+require\$\$\d+\s+from\s+['"]converted-three['"]/, 'converted-three is transformed to import');
    assert.doesNotMatch(code, /import\s+.*\s+from\s+['"]ignored-one['"]/);
    assert.doesNotMatch(code, /import\s+.*\s+from\s+['"]ignored-two['"]/);
  }

  // Contract 5: An ignored require statement preserves deferred execution semantics, only invoking ambient require when called at runtime.
  {
    const code = await bundleEntry(
      sampleCode,
      { ignore: ['optional-native-addon'] },
      'cjs'
    );

    const ambientCalls = [];
    const mockRequire = (id) => {
      ambientCalls.push(id);
      if (id === 'eager-lib') {
        return 'eager-lib-value';
      }
      if (id === 'optional-native-addon') {
        return 'native-addon-instance';
      }
      throw new Error(`Unexpected require call: ${id}`);
    };

    // Evaluate the bundle
    const mod = evaluateBundle(code, mockRequire);

    // Module load triggers eager-lib
    assert.equal(mod.eagerDep, 'eager-lib-value', 'Eager dependency loaded at startup');
    assert.deepEqual(ambientCalls, ['eager-lib'], 'optional-native-addon must NOT be called on bundle evaluation');

    // Deferred execution: lazyLoad() invokes optional-native-addon
    const result = mod.lazyLoad();
    assert.equal(result, 'native-addon-instance', 'lazyLoad returns value from ambient require');
    assert.deepEqual(ambientCalls, ['eager-lib', 'optional-native-addon'], 'optional-native-addon invoked only upon calling lazyLoad()');
  }

  console.log('All contract assertions passed successfully.');
}

runContracts().catch((err) => {
  console.error('Contract failed:', err);
  process.exit(1);
});

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