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babel-plugin-polyfill-corejs3 0.11.1: exclude

검증된 샘플 — npm babel-plugin-polyfill-corejs3 0.11.1: exclude. node 22 · linux debian/x64 · docker에서 contract를 실행해 통과했습니다: The exclude option suppresses…

sha256:1371347a8cdcedc78d45294dfe15a8409e628db30cc19bf6387bc0665f92200a

이 네트워크가 제공하는 것은 하나입니다. 빌드되는 샘플. 샌드박스에서 돌리고 서명된 영수증을 보관합니다. 등급을 매기지 않고 무엇도 보증하지 않습니다 — 같은 코드가 당신 환경에서 빌드되는지는 측정한 적이 없습니다. 통과한 계약 영수증을 낸 서로 다른 서명 키의 수입니다. 하나면 작성자 혼자이고, 둘 이상이면 다른 사람도 빌드했다는 뜻입니다. 키는 스스로 만드는 것이고 뒤에 등록된 신원이 없으므로, 세는 것은 사람이 아니라 키입니다. MIT-0

실행 증거

선언된 환경과 서명된 실행을 분리해 두었습니다. 이 샘플이 무엇을 어디서 실행했는지 그대로 볼 수 있습니다.

증거 기준
서명된 컨트랙트 통과
검증 영수증
1
빌드한 서명 키
1
선언된 환경 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

검증 실행 환경

환경 컨트랙트 단계 실행일
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

케이스

HOW
목표
verify exclude in pkg:npm/babel-plugin-polyfill-corejs3@0.11.1
패키지
심벌
  • exclude
환경
node 22.23.2
생성일
2026-09-05T02:11:48Z

컨트랙트

  1. The exclude option suppresses polyfill injection for specified modules when targeting environments requiring polyfills
  2. Regular expression patterns in exclude options filter out entire matching namespaces of polyfills
  3. Multiple exclude patterns specified as an array suppress all matching polyfills simultaneously
  4. The entry-global method omits excluded polyfill modules from expanded core-js bundle imports
  5. The usage-pure method respects exclude options by omitting pure helper rewriting for excluded APIs
  6. Specifying a non-matching polyfill module pattern in exclude throws an option validation error
  7. Specifying conflicting polyfills in both include and exclude options throws a configuration error
  8. An empty exclude array is accepted without error and preserves default polyfill injection behavior

파일

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

소스 아티팩트 내려받기 (tar.gz)

소스

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 exclude in pkg:npm/babel-plugin-polyfill-corejs3@0.11.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/babel-plugin-polyfill-corejs3@0.11.1
Demonstrate these symbols/APIs:
  - exclude

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:sha256:74f8fff3f321f6d4b3d8ba92c9110a3c978319af08e777e0a129b6bae63e38d5","contract":["The exclude option suppresses polyfill injection for specified modules when targeting environments requiring polyfills","Regular expression patterns in exclude options filter out entire matching namespaces of polyfills","Multiple exclude patterns specified as an array suppress all matching polyfills simultaneously","The entry-global method omits excluded polyfill modules from expanded core-js bundle imports","The usage-pure method respects exclude options by omitting pure helper rewriting for excluded APIs","Specifying a non-matching polyfill module pattern in exclude throws an option validation error","Specifying conflicting polyfills in both include and exclude options throws a configuration error","An empty exclude array is accepted without error and preserves default polyfill injection behavior"],"goal":"verify exclude in pkg:npm/babel-plugin-polyfill-corejs3@0.11.1","kind":"HOW","packages":["pkg:npm/babel-plugin-polyfill-corejs3@0.11.1"],"schemaVersion":1,"symbols":["exclude"]},"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/babel-plugin-polyfill-corejs3@0.11.1"],"schemaVersion":1,"subject":"pkg:npm/babel-plugin-polyfill-corejs3@0.11.1","symbols":["exclude"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "sample-babel-plugin-polyfill-corejs3",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "babel-plugin-polyfill-corejs3": "0.11.1"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify exclude in pkg:npm/babel-plugin-polyfill-corejs3@0.11.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/babel-plugin-polyfill-corejs3@0.11.1"
  ],
  "symbols": [
    "exclude"
  ]
}
src/index.mjs
import * as babel from '@babel/core';
import polyfillCorejs3Plugin from 'babel-plugin-polyfill-corejs3';

const babelCore = babel.default || babel;
export const plugin = polyfillCorejs3Plugin.default || polyfillCorejs3Plugin;

/**
 * Transforms JavaScript code using @babel/core and babel-plugin-polyfill-corejs3.
 * @param {string} code - Source code to transform.
 * @param {object} pluginOptions - Options passed to babel-plugin-polyfill-corejs3.
 * @param {object} [babelOptions] - Additional Babel transformSync options.
 * @returns {string} Transformed JavaScript code.
 */
export function transformWithCorejs3(code, pluginOptions = {}, babelOptions = {}) {
  const result = babelCore.transformSync(code, {
    configFile: false,
    babelrc: false,
    plugins: [[plugin, pluginOptions]],
    ...babelOptions
  });
  return result ? result.code : '';
}

/**
 * Extracts injected import specifiers from transformed source code.
 * @param {string} code - Transformed JavaScript source containing import declarations.
 * @returns {string[]} List of imported module paths.
 */
export function extractInjectedImports(code) {
  const imports = [];
  const regex = /import\s+(?:[^"'\n]+\s+from\s+)?["']([^"']+)["']/g;
  let match;
  while ((match = regex.exec(code)) !== null) {
    imports.push(match[1]);
  }
  return imports;
}
test/contract.mjs
import assert from 'node:assert/strict';
import { transformWithCorejs3, extractInjectedImports } from '../src/index.mjs';

// 1. The exclude option suppresses polyfill injection for specified modules when targeting environments requiring polyfills
{
  const code = 'const p = new Promise(resolve => resolve(1)); const ok = [1, 2].includes(1);';
  const defaultOutput = transformWithCorejs3(code, {
    method: 'usage-global',
    targets: { ie: '11' }
  });
  const excludedOutput = transformWithCorejs3(code, {
    method: 'usage-global',
    targets: { ie: '11' },
    exclude: ['es.promise']
  });

  const defaultImports = extractInjectedImports(defaultOutput);
  const excludedImports = extractInjectedImports(excludedOutput);

  assert.equal(
    defaultImports.includes('core-js/modules/es.promise.js'),
    true,
    'Default output targeting IE 11 should inject es.promise'
  );
  assert.equal(
    excludedImports.includes('core-js/modules/es.promise.js'),
    false,
    'Excluded module es.promise must not be injected'
  );
  assert.equal(
    excludedImports.includes('core-js/modules/es.array.includes.js'),
    true,
    'Non-excluded module es.array.includes should still be injected'
  );
}

// 2. Regular expression patterns in exclude options filter out entire matching namespaces of polyfills
{
  const code = 'const ok = [1, 2].includes(1); const flat = [1, [2]].flat(); const p = new Promise(r => r());';
  const regexExcludedOutput = transformWithCorejs3(code, {
    method: 'usage-global',
    targets: { ie: '11' },
    exclude: [/^es\.array\./]
  });

  const imports = extractInjectedImports(regexExcludedOutput);

  assert.equal(
    imports.includes('core-js/modules/es.array.includes.js'),
    false,
    'Regex exclude /^es\\.array\\./ must suppress es.array.includes'
  );
  assert.equal(
    imports.includes('core-js/modules/es.array.flat.js'),
    false,
    'Regex exclude /^es\\.array\\./ must suppress es.array.flat'
  );
  assert.equal(
    imports.includes('core-js/modules/es.promise.js'),
    true,
    'Non-matching modules such as es.promise must remain injected'
  );
}

// 3. Multiple exclude patterns specified as an array suppress all matching polyfills simultaneously
{
  const code = 'const p = new Promise(r => r()); const ok = [1].includes(1); const str = "a".padStart(3);';
  const multiExcludedOutput = transformWithCorejs3(code, {
    method: 'usage-global',
    targets: { ie: '11' },
    exclude: ['es.promise', /^es\.string\./]
  });

  const imports = extractInjectedImports(multiExcludedOutput);

  assert.equal(
    imports.includes('core-js/modules/es.promise.js'),
    false,
    'String rule in array must suppress es.promise'
  );
  assert.equal(
    imports.includes('core-js/modules/es.string.pad-start.js'),
    false,
    'Regex rule in array must suppress es.string.pad-start'
  );
  assert.equal(
    imports.includes('core-js/modules/es.array.includes.js'),
    true,
    'Non-excluded modules must still be injected'
  );
}

// 4. The entry-global method omits excluded polyfill modules from expanded core-js bundle imports
{
  const entryCode = 'import "core-js";';
  const defaultEntryOutput = transformWithCorejs3(entryCode, {
    method: 'entry-global',
    targets: { ie: '11' }
  });
  const excludedEntryOutput = transformWithCorejs3(entryCode, {
    method: 'entry-global',
    targets: { ie: '11' },
    exclude: ['es.promise']
  });

  const defaultImports = extractInjectedImports(defaultEntryOutput);
  const excludedImports = extractInjectedImports(excludedEntryOutput);

  assert.equal(
    defaultImports.includes('core-js/modules/es.promise.js'),
    true,
    'entry-global targeting IE 11 should inject es.promise'
  );
  assert.equal(
    excludedImports.includes('core-js/modules/es.promise.js'),
    false,
    'entry-global with exclude: ["es.promise"] must omit es.promise'
  );
}

// 5. The usage-pure method respects exclude options by omitting pure helper rewriting for excluded APIs
{
  const code = 'const ok = [1, 2].includes(1);';
  const defaultPureOutput = transformWithCorejs3(code, {
    method: 'usage-pure',
    targets: { ie: '11' }
  });
  const excludedPureOutput = transformWithCorejs3(code, {
    method: 'usage-pure',
    targets: { ie: '11' },
    exclude: ['es.array.includes']
  });

  assert.equal(
    defaultPureOutput.includes('_includesInstanceProperty('),
    true,
    'Default usage-pure should rewrite to helper'
  );
  assert.equal(
    excludedPureOutput.includes('_includesInstanceProperty('),
    false,
    'Excluded method in usage-pure must not be rewritten to pure helper'
  );
  assert.equal(
    excludedPureOutput.includes('[1, 2].includes(1)'),
    true,
    'Original expression must be preserved when excluded'
  );
}

// 6. Specifying a non-matching polyfill module pattern in exclude throws an option validation error
{
  assert.throws(
    () => {
      transformWithCorejs3('const x = 1;', {
        method: 'usage-global',
        exclude: ['non-existent-polyfill-identifier']
      });
    },
    {
      message: /The following "exclude" patterns didn't match any polyfill/
    },
    'Invalid exclude pattern must throw validation error'
  );
}

// 7. Specifying conflicting polyfills in both include and exclude options throws a configuration error
{
  assert.throws(
    () => {
      transformWithCorejs3('const x = 1;', {
        method: 'usage-global',
        include: ['es.promise'],
        exclude: ['es.promise']
      });
    },
    {
      message: /The following polyfills were matched both by "include" and "exclude" patterns/
    },
    'Overlapping include and exclude must throw conflict error'
  );
}

// 8. An empty exclude array is accepted without error and preserves default polyfill injection behavior
{
  const code = 'const ok = [1, 2].includes(1);';
  const output = transformWithCorejs3(code, {
    method: 'usage-global',
    targets: { ie: '11' },
    exclude: []
  });
  const imports = extractInjectedImports(output);
  assert.equal(
    imports.includes('core-js/modules/es.array.includes.js'),
    true,
    'Empty exclude array should preserve default injection'
  );
}

console.log('All 8 contract assertions passed successfully.');

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