CodeSampleX

Ejemplo

@babel/helper-module-transforms 8.0.1

Muestra verificada para npm @babel/helper-module-transforms 8.0.1. El contrato se ejecutó en node 22 · linux alpine/x64 · docker y pasó.

sha256:766a1238365cdd74e522078c68331f47df768828e4a0e712eed1d9ce94e32c08

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 alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-26

Caso

HOW
Objetivo
verify pkg:npm/%40babel/helper-module-transforms@8.0.1
Paquetes
Creado
2026-08-26T06:27:46Z

Contrato

  1. getModuleName resolves module names based on options, root configs, and custom getModuleId functions
  2. isSideEffectImport identifies whether import metadata represents an import with no specifiers
  3. hasExports reports whether the module metadata contains export declarations
  4. isModule identifies whether program AST node has module source type
  5. ensureStatementsHoisted marks statement AST nodes with the _blockHoist metadata property
  6. buildDynamicImport transforms dynamic import AST nodes using a custom transform callback

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 pkg:npm/%40babel/helper-module-transforms@8.0.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/helper-module-transforms@8.0.1

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
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package-lock.json
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  "name": "sample-babel-helper-module-transforms",
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package.json
{
  "name": "sample-babel-helper-module-transforms",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/helper-module-transforms": "8.0.1"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40babel/helper-module-transforms@8.0.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/helper-module-transforms@8.0.1"
  ]
}
src/index.mjs
import {
  getModuleName,
  isSideEffectImport,
  hasExports,
  isModule,
  ensureStatementsHoisted,
  buildDynamicImport
} from "@babel/helper-module-transforms";

export function resolveModuleName(rootOpts, pluginOpts) {
  return getModuleName(rootOpts, pluginOpts);
}

export function checkIsSideEffect(sourceMetadata) {
  return isSideEffectImport(sourceMetadata);
}

export function checkHasExports(metadata) {
  return hasExports(metadata);
}

export function checkIsModule(programPath) {
  return isModule(programPath);
}

export function hoistStatements(statements) {
  ensureStatementsHoisted(statements);
  return statements;
}

export function transformDynamicImport(node, deferToThen, wrapWithPromise, builder) {
  return buildDynamicImport(node, deferToThen, wrapWithPromise, builder);
}
test/contract.mjs
import assert from "node:assert/strict";
import {
  getModuleName,
  isSideEffectImport,
  hasExports,
  isModule,
  ensureStatementsHoisted,
  buildDynamicImport
} from "@babel/helper-module-transforms";
import {
  resolveModuleName,
  checkIsSideEffect,
  checkHasExports,
  checkIsModule,
  hoistStatements,
  transformDynamicImport
} from "../src/index.mjs";

// Test 1: getModuleName resolves module names based on options, root configs, and custom getModuleId functions
{
  assert.equal(getModuleName({}, {}), null);
  assert.equal(resolveModuleName({}, {}), null);

  assert.equal(getModuleName({}, { moduleId: "my-custom-module" }), "my-custom-module");
  assert.equal(resolveModuleName({}, { moduleId: "my-custom-module" }), "my-custom-module");

  assert.equal(
    getModuleName({ filename: "src/components/button.js" }, { moduleIds: true }),
    "src/components/button"
  );
  assert.equal(
    resolveModuleName({ filename: "src/components/button.js" }, { moduleIds: true }),
    "src/components/button"
  );

  assert.equal(
    getModuleName({ filename: "src/components/button.js" }, { moduleIds: true, moduleRoot: "my-pkg" }),
    "my-pkg/src/components/button"
  );

  assert.equal(
    getModuleName(
      { filename: "src/index.js" },
      { moduleIds: true, getModuleId: (name) => `lib/${name}` }
    ),
    "lib/src/index"
  );
}

// Test 2: isSideEffectImport identifies whether import metadata represents an import with no specifiers
{
  const sideEffectSource = {
    imports: new Set(),
    importsNamespace: new Set(),
    reexports: new Map(),
    reexportNamespace: new Set(),
    reexportAll: null
  };
  assert.equal(isSideEffectImport(sideEffectSource), true);
  assert.equal(checkIsSideEffect(sideEffectSource), true);

  const namedImportSource = {
    imports: new Set(["foo"]),
    importsNamespace: new Set(),
    reexports: new Map(),
    reexportNamespace: new Set(),
    reexportAll: null
  };
  assert.equal(isSideEffectImport(namedImportSource), false);
  assert.equal(checkIsSideEffect(namedImportSource), false);
}

// Test 3: hasExports reports whether the module metadata contains export declarations
{
  assert.equal(hasExports({ hasExports: true }), true);
  assert.equal(checkHasExports({ hasExports: true }), true);

  assert.equal(hasExports({ hasExports: false }), false);
  assert.equal(checkHasExports({ hasExports: false }), false);
}

// Test 4: isModule identifies whether program AST node has module source type
{
  const moduleProgramPath = { node: { sourceType: "module" } };
  assert.equal(isModule(moduleProgramPath), true);
  assert.equal(checkIsModule(moduleProgramPath), true);

  const scriptProgramPath = { node: { sourceType: "script" } };
  assert.equal(isModule(scriptProgramPath), false);
  assert.equal(checkIsModule(scriptProgramPath), false);
}

// Test 5: ensureStatementsHoisted marks statement AST nodes with the _blockHoist metadata property
{
  const statements = [
    { type: "ExpressionStatement" },
    { type: "VariableDeclaration" }
  ];
  ensureStatementsHoisted(statements);
  assert.equal(statements[0]._blockHoist, 3);
  assert.equal(statements[1]._blockHoist, 3);

  const newStatements = [{ type: "ReturnStatement" }];
  hoistStatements(newStatements);
  assert.equal(newStatements[0]._blockHoist, 3);
}

// Test 6: buildDynamicImport transforms dynamic import AST nodes using a custom transform callback
{
  const mockImportCall = {
    type: "CallExpression",
    callee: { type: "Import" },
    arguments: [{ type: "StringLiteral", value: "./widget.js" }]
  };

  const transformed = buildDynamicImport(mockImportCall, false, false, (specifier) => ({
    type: "CallExpression",
    callee: { type: "Identifier", name: "require" },
    arguments: [specifier]
  }));

  assert.equal(transformed.type, "CallExpression");
  assert.equal(transformed.callee.name, "require");
  assert.equal(transformed.arguments[0].value, "./widget.js");

  const helperTransformed = transformDynamicImport(mockImportCall, false, false, (specifier) => ({
    type: "CallExpression",
    callee: { type: "Identifier", name: "require" },
    arguments: [specifier]
  }));
  assert.equal(helperTransformed.type, "CallExpression");
  assert.equal(helperTransformed.callee.name, "require");
}

console.log("All @babel/helper-module-transforms contract tests passed successfully.");

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