CodeSampleX

Exemple

@babel/plugin-transform-react-jsx-source 7.29.7

Échantillon vérifié pour npm @babel/plugin-transform-react-jsx-source 7.29.7. Le contrat s'est exécuté sur node 22 · linux alpine/x64 · docker et a réussi.

sha256:6fe529114de4840b2cfb562fa6fa424ae8e44efd0427b7c2993ff7835bca2287

Ce réseau offre une seule chose : un échantillon qui compile. Il l'a exécuté dans un bac à sable et conservé le reçu signé. Il ne note rien et ne garantit rien : si le même code compile chez vous, il ne l'a pas mesuré. Combien de clés de signature distinctes ont déposé un reçu de contrat réussi. Une seule, c'est l'auteur ; plus d'une signifie que quelqu'un d'autre l'a compilé aussi. Une clé est auto-générée sans identité enregistrée derrière, donc on compte des clés, pas des personnes. MIT-0

Preuves d'exécution

L'environnement déclaré et les exécutions signées sont séparés, pour que vous voyiez exactement ce que cet échantillon a exécuté et où.

Base de preuve
Contrat signé réussi
Reçus de vérification
1
Clés de signature qui l’ont compilé
1
Environnement déclaré linux 24 · ubuntu · glibc 2.39 x64 npm

Environnements des exécutions de vérification

Environnement Contrat Étapes Exécution
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

Cas

HOW
Objectif
verify pkg:npm/%40babel/plugin-transform-react-jsx-source@7.29.7
Paquets
Créé
2026-08-23T07:47:53Z

Contrat

  1. Plugin default export is a function factory asserting Babel version 7 compatibility
  2. Plugin factory returns a plugin object named transform-react-jsx-source with JSXOpeningElement visitor
  3. Injects __source attribute with fileName, lineNumber, and columnNumber into JSXOpeningElement
  4. Injects fileName variable declaration at program scope matching provided filename
  5. Calculates 1-based columnNumber and lineNumber from AST node loc start position
  6. Preserves existing __source attribute on JSXOpeningElement without duplicate injection
  7. Handles nested JSX elements injecting independent source locations for each element
  8. Handles JSX elements without location metadata without error
  9. Helper functions createReactJsxSourcePlugin and transformReactJsxSource correctly transform JSX source code

Fichiers

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

Télécharger l’artefact source (tar.gz)

Code source

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/plugin-transform-react-jsx-source@7.29.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/plugin-transform-react-jsx-source@7.29.7

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:sha256:2a2425257de6be8fe6da61485e760cbb19562e4167dba073879fb78ea6d9d0d8","contract":["Plugin default export is a function factory asserting Babel version 7 compatibility","Plugin factory returns a plugin object named transform-react-jsx-source with JSXOpeningElement visitor","Injects __source attribute with fileName, lineNumber, and columnNumber into JSXOpeningElement","Injects fileName variable declaration at program scope matching provided filename","Calculates 1-based columnNumber and lineNumber from AST node loc start position","Preserves existing __source attribute on JSXOpeningElement without duplicate injection","Handles nested JSX elements injecting independent source locations for each element","Handles JSX elements without location metadata without error","Helper functions createReactJsxSourcePlugin and transformReactJsxSource correctly transform JSX source code"],"goal":"verify pkg:npm/%40babel/plugin-transform-react-jsx-source@7.29.7","kind":"HOW","packages":["pkg:npm/%40babel/plugin-transform-react-jsx-source@7.29.7"],"schemaVersion":1},"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/plugin-transform-react-jsx-source@7.29.7"],"schemaVersion":1,"subject":"pkg:npm/%40babel/plugin-transform-react-jsx-source@7.29.7","verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "sample-babel-plugin-transform-react-jsx-source",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "@babel/plugin-transform-react-jsx-source": "7.29.7"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40babel/plugin-transform-react-jsx-source@7.29.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/plugin-transform-react-jsx-source@7.29.7"
  ]
}
src/index.mjs
import * as babel from '@babel/core';
import reactJsxSourcePlugin from '@babel/plugin-transform-react-jsx-source';

/**
 * Creates and initializes the react-jsx-source plugin instance.
 * @param {object} [api] - Babel API object with types, template, assertVersion.
 * @param {object} [options] - Optional plugin options.
 * @returns {object} Plugin instance object with name and visitor.
 */
export function createReactJsxSourcePlugin(api, options = {}) {
  const plugin = reactJsxSourcePlugin.default || reactJsxSourcePlugin;
  const babelApi = api || {
    types: babel.types,
    template: babel.template,
    assertVersion: (range) => Boolean(range)
  };
  return plugin(babelApi, options);
}

/**
 * Transforms JSX source code using @babel/plugin-transform-react-jsx-source.
 * @param {string} source - Source code containing JSX to transform.
 * @param {object} [options] - Additional Babel transform options.
 * @returns {import('@babel/core').BabelFileResult} Babel transform result.
 */
export function transformReactJsxSource(source, options = {}) {
  const plugin = reactJsxSourcePlugin.default || reactJsxSourcePlugin;
  const parserPlugins = ['jsx'];
  if (options.parserOpts && options.parserOpts.plugins) {
    parserPlugins.push(...options.parserOpts.plugins);
  }

  const { parserOpts, plugins, filename, ...restOptions } = options;

  return babel.transformSync(source, {
    filename: filename || 'sample.jsx',
    configFile: false,
    babelrc: false,
    parserOpts: {
      plugins: parserPlugins,
      ...parserOpts
    },
    plugins: [
      plugin,
      ...(plugins || [])
    ],
    ...restOptions
  });
}
test/contract.mjs
import assert from 'node:assert/strict';
import * as babel from '@babel/core';
import reactJsxSourcePlugin from '@babel/plugin-transform-react-jsx-source';
import { createReactJsxSourcePlugin, transformReactJsxSource } from '../src/index.mjs';

// 1. Plugin default export is a function factory asserting Babel version 7 compatibility
const plugin = reactJsxSourcePlugin.default || reactJsxSourcePlugin;
assert.equal(typeof plugin, 'function', 'Plugin default export must be a function');

let assertedVersionRange = null;
const mockApi = {
  types: babel.types,
  template: babel.template,
  assertVersion(range) {
    assertedVersionRange = range;
  }
};
const instance = plugin(mockApi, {});
assert.equal(assertedVersionRange, 7, 'Plugin must assert Babel version 7 compatibility');

// 2. Plugin factory returns a plugin object named transform-react-jsx-source with JSXOpeningElement visitor
assert.equal(typeof instance, 'object', 'Plugin factory must return an object');
assert.equal(instance.name, 'transform-react-jsx-source', 'Plugin name must be transform-react-jsx-source');
assert.ok(instance.visitor && typeof instance.visitor.JSXOpeningElement === 'function', 'Plugin must define JSXOpeningElement visitor');

// 3. Injects __source attribute with fileName, lineNumber, and columnNumber into JSXOpeningElement
const sampleCode = 'const el = <div className="card">Content</div>;';
const sampleResult = transformReactJsxSource(sampleCode, { filename: 'components/Card.jsx' });
assert.ok(sampleResult.code.includes('__source='), 'Transformed code must contain __source prop');
assert.ok(sampleResult.code.includes('fileName:'), 'Transformed code must contain fileName in __source');
assert.ok(sampleResult.code.includes('lineNumber:'), 'Transformed code must contain lineNumber in __source');
assert.ok(sampleResult.code.includes('columnNumber:'), 'Transformed code must contain columnNumber in __source');

// 4. Injects fileName variable declaration at program scope matching provided filename
const customFilename = 'src/views/Header.jsx';
const headerResult = transformReactJsxSource('<header>Title</header>;', { filename: customFilename });
assert.ok(headerResult.code.includes(customFilename), 'Transformed code must reference specified filename');
assert.ok(headerResult.code.includes('_jsxFileName'), 'Transformed code must declare _jsxFileName identifier');

// 5. Calculates 1-based columnNumber and lineNumber from AST node loc start position
const buttonCode = '<button>Click</button>;';
const buttonResult = transformReactJsxSource(buttonCode, { filename: 'Button.jsx' });
assert.ok(buttonResult.code.includes('lineNumber: 1'), 'Line number must be 1 for first line JSX element');
assert.ok(buttonResult.code.includes('columnNumber: 1'), 'Column number must be 1 (1-based index) for element starting at column 0');

// 6. Preserves existing __source attribute on JSXOpeningElement without duplicate injection
const preExistingSourceCode = 'const pre = <span __source={{ fileName: "custom.jsx", lineNumber: 99, columnNumber: 3 }}>Text</span>;';
const preResult = transformReactJsxSource(preExistingSourceCode, { filename: 'Override.jsx' });
const occurrences = (preResult.code.match(/__source=/g) || []).length;
assert.equal(occurrences, 1, 'Pre-existing __source attribute should not receive duplicate injection');
assert.ok(preResult.code.includes('lineNumber: 99'), 'Pre-existing __source values must be preserved');

// 7. Handles nested JSX elements injecting independent source locations for each element
const nestedCode = `<div>
  <span>Child</span>
</div>;`;
const nestedResult = transformReactJsxSource(nestedCode, { filename: 'Nested.jsx' });
assert.ok(nestedResult.code.includes('lineNumber: 1'), 'Root element should have lineNumber 1');
assert.ok(nestedResult.code.includes('lineNumber: 2'), 'Nested child element should have lineNumber 2');

// 8. Handles JSX elements without location metadata without error
const nodeWithoutLoc = {
  attributes: []
};
const dummyPath = {
  node: nodeWithoutLoc,
  scope: {
    generateUidIdentifier: () => ({ name: '_jsxFileName' }),
    getProgramParent: () => ({ push: () => {} })
  }
};
assert.doesNotThrow(() => {
  instance.visitor.JSXOpeningElement(dummyPath, {});
}, 'Visitor should handle JSX opening element lacking loc without throwing');
assert.equal(nodeWithoutLoc.attributes.length, 0, 'No attributes should be injected when loc is missing');

// 9. Helper functions createReactJsxSourcePlugin and transformReactJsxSource correctly transform JSX source code
const helperPluginInstance = createReactJsxSourcePlugin();
assert.equal(helperPluginInstance.name, 'transform-react-jsx-source', 'Helper plugin must return valid plugin instance');

const helperResult = transformReactJsxSource('<p>Helper test</p>', { filename: 'Helper.jsx' });
assert.ok(helperResult.code.length > 0, 'Helper transform function must produce transformed code');
assert.ok(helperResult.code.includes('__source='), 'Helper transformed code must contain __source attribute');

console.log('Contract assertions passed.');

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