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샘플

@babel/core 7.29.7: parseSync

검증된 샘플 — npm @babel/core 7.29.7: parseSync. node 22 · linux alpine/x64 · docker에서 contract를 실행해 통과했습니다: babel exports parseSync function

sha256:dfaeb4f8e2105131fa1f1d99c80499e1b4fb0ab089117f90760e61727b2d7a12

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 linux 24 · ubuntu · glibc 2.39 x64 npm

검증 실행 환경

환경 컨트랙트 단계 실행일
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-23

케이스

HOW
목표
verify @babel/core.parseSync in pkg:npm/%40babel/core@7.29.7
패키지
심벌
  • @babel/core.parseSync
생성일
2026-08-23T06:17:20Z

컨트랙트

  1. babel exports parseSync function
  2. parseSync parses JavaScript source code into a File AST node with Program body and default sourceType module
  3. parseSync accepts parserOpts plugins such as jsx to parse extended syntax without transformation plugins
  4. parseSync populates tokens array when parserOpts.tokens is true
  5. parseSync with sourceType unambiguous parses export statements as module and plain statements as script
  6. parseSync returns null when filename matches ignore pattern in options
  7. parseSync throws a SyntaxError with BABEL_PARSE_ERROR code on invalid syntax

파일

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • 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 @babel/core.parseSync in pkg:npm/%40babel/core@7.29.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/core@7.29.7
Demonstrate these symbols/APIs:
  - @babel/core.parseSync

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:sha256:7bb63e80404aff344ba9a5b81d58c310ff3dcc0f0a9c929a71c628841636840d","contract":["babel exports parseSync function","parseSync parses JavaScript source code into a File AST node with Program body and default sourceType module","parseSync accepts parserOpts plugins such as jsx to parse extended syntax without transformation plugins","parseSync populates tokens array when parserOpts.tokens is true","parseSync with sourceType unambiguous parses export statements as module and plain statements as script","parseSync returns null when filename matches ignore pattern in options","parseSync throws a SyntaxError with BABEL_PARSE_ERROR code on invalid syntax"],"goal":"verify @babel/core.parseSync in pkg:npm/%40babel/core@7.29.7","kind":"HOW","packages":["pkg:npm/%40babel/core@7.29.7"],"schemaVersion":1,"symbols":["@babel/core.parseSync"]},"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@7.29.7"],"schemaVersion":1,"subject":"pkg:npm/%40babel/core@7.29.7","symbols":["@babel/core.parseSync"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "sample-babel-parsesync",
  "version": "1.0.0",
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/core": "7.29.7"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @babel/core.parseSync in pkg:npm/%40babel/core@7.29.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/core@7.29.7"
  ],
  "symbols": [
    "@babel/core.parseSync"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import * as babel from '@babel/core';

// 1. parseSync is exported as a function
assert.equal(typeof babel.parseSync, 'function', 'babel.parseSync must be a function');

// 2. parseSync parses JavaScript source code into a File AST node with default sourceType module
{
  const code = 'export function add(a, b) { return a + b; }';
  const ast = babel.parseSync(code, {
    configFile: false,
    babelrc: false
  });

  assert.ok(ast, 'parseSync should return an AST node');
  assert.equal(ast.type, 'File', 'root AST node must be of type File');
  assert.equal(ast.program.type, 'Program', 'AST must have a Program node');
  assert.equal(ast.program.sourceType, 'module', 'default program sourceType should be module');
  assert.equal(ast.program.body.length, 1, 'program body should contain 1 statement');
  assert.equal(ast.program.body[0].type, 'ExportNamedDeclaration', 'first statement should be ExportNamedDeclaration');
  assert.equal(ast.program.body[0].declaration.id.name, 'add', 'function identifier should be add');
}

// 3. parseSync parses extended syntax such as JSX when parserOpts plugins are specified
{
  const jsxCode = 'const element = <div className="card">Hello World</div>;';
  const ast = babel.parseSync(jsxCode, {
    configFile: false,
    babelrc: false,
    parserOpts: {
      plugins: ['jsx']
    }
  });

  assert.ok(ast, 'parseSync should return AST for JSX code');
  const statement = ast.program.body[0];
  assert.equal(statement.type, 'VariableDeclaration', 'statement should be VariableDeclaration');
  const declarator = statement.declarations[0];
  assert.equal(declarator.init.type, 'JSXElement', 'expression init should be JSXElement');
  assert.equal(declarator.init.openingElement.name.name, 'div', 'JSX opening element name should be div');
}

// 4. parseSync populates tokens array with token metadata when parserOpts tokens is true
{
  const code = 'const answer = 42;';
  const ast = babel.parseSync(code, {
    configFile: false,
    babelrc: false,
    parserOpts: {
      tokens: true
    }
  });

  assert.ok(ast, 'parseSync should return AST');
  assert.ok(Array.isArray(ast.tokens), 'ast.tokens should be an array when parserOpts.tokens is true');
  assert.ok(ast.tokens.length >= 4, 'tokens array should contain tokens for declaration and eof');
  assert.ok(ast.tokens.some(t => t.value === 'answer'), 'tokens should include identifier answer');
  assert.ok(ast.tokens.some(t => t.value === 42 || t.value === '42'), 'tokens should include numeric literal 42');
  const lastToken = ast.tokens[ast.tokens.length - 1];
  assert.equal(lastToken.type.label, 'eof', 'last token should be eof');
}

// 5. parseSync with sourceType unambiguous detects module vs script
{
  const moduleCode = 'export const x = 10;';
  const moduleAst = babel.parseSync(moduleCode, {
    configFile: false,
    babelrc: false,
    sourceType: 'unambiguous'
  });
  assert.equal(moduleAst.program.sourceType, 'module', 'unambiguous sourceType with export should detect module');

  const scriptCode = 'const y = 20;';
  const scriptAst = babel.parseSync(scriptCode, {
    configFile: false,
    babelrc: false,
    sourceType: 'unambiguous'
  });
  assert.equal(scriptAst.program.sourceType, 'script', 'unambiguous sourceType without import/export should detect script');
}

// 6. parseSync returns null when filename matches ignore pattern in options
{
  const result = babel.parseSync('const x = 1;', {
    configFile: false,
    babelrc: false,
    filename: 'node_modules/example/index.js',
    ignore: ['node_modules/**']
  });

  assert.strictEqual(result, null, 'parseSync should return null when filename matches ignore pattern');
}

// 7. parseSync throws a SyntaxError with BABEL_PARSE_ERROR code on invalid syntax
{
  assert.throws(
    () => {
      babel.parseSync('const invalid syntax = ;', {
        configFile: false,
        babelrc: false
      });
    },
    (err) => {
      return err instanceof SyntaxError && err.code === 'BABEL_PARSE_ERROR' && typeof err.loc === 'object';
    },
    'Invalid syntax must throw SyntaxError with BABEL_PARSE_ERROR code and location metadata'
  );
}

console.log('Contract tests passed successfully.');

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