CodeSampleX

Exemple

@babel/plugin-transform-duplicate-named-capturing-groups-regex 7.29.7: default

Échantillon vérifié pour npm @babel/plugin-transform-duplicate-named-capturing-groups-regex 7.29.7: default. Le contrat s'est exécuté sur node 22 · linux…

sha256:1d3526a68485862a282142be399a831808e180fd94fd4d0c5167da28b7c213ec

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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…		 2026-08-27

Cas

HOW
Objectif
verify @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7
Paquets
Symboles
  • @babel/plugin-transform-duplicate-named-capturing-groups-regex.default
Environnement
node 22.23.2
Créé
2026-08-27T12:07:56Z

Contrat

  1. Plugin default export is a function factory declaring Babel version compatibility
  2. Plugin factory returns an object named transform-duplicate-named-capturing-groups-regex with manipulateOptions, pre, and visitor.RegExpLiteral
  3. Plugin factory throws an Error when runtime option is non-boolean
  4. Plugin pre() sets duplicateNamedCaptureGroups feature flag and runtime options on Babel file context
  5. RegExpLiteral visitor compiles duplicate named capturing groups to numbered groups and wraps with wrapRegExp helper when runtime is true
  6. RegExpLiteral visitor compiles duplicate named capturing groups without wrapRegExp when runtime is false
  7. RegExpLiteral visitor skips wrapRegExp helper wrapping when RegExp is used in a test method expression
  8. RegExpLiteral visitor leaves regular expressions without duplicate named groups unchanged

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 @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7
Demonstrate these symbols/APIs:
  - @babel/plugin-transform-duplicate-named-capturing-groups-regex.default
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: esm
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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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package.json
{
  "name": "sample-babel-plugin-transform-duplicate-named-capturing-groups-regex",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/plugin-transform-duplicate-named-capturing-groups-regex": "7.29.7"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7"
  ],
  "symbols": [
    "@babel/plugin-transform-duplicate-named-capturing-groups-regex.default"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "esm",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
src/index.mjs
import pluginModule from "@babel/plugin-transform-duplicate-named-capturing-groups-regex";

export const duplicateNamedCapturingGroupsRegexPlugin =
  typeof pluginModule === "function"
    ? pluginModule
    : pluginModule.default || pluginModule;

export function instantiatePlugin(api = {}, options = {}) {
  const normalizedApi = {
    assertVersion: (range) => {
      if (typeof api.assertVersion === "function") {
        api.assertVersion(range);
      }
    },
    ...api
  };
  return duplicateNamedCapturingGroupsRegexPlugin(normalizedApi, options);
}

export function createFileContext(initialEntries = {}) {
  const store = new Map(Object.entries(initialEntries));
  return {
    get(key) {
      return store.get(key);
    },
    set(key, value) {
      store.set(key, value);
    },
    has(key) {
      return store.has(key);
    },
    _store: store
  };
}

export function applyPluginPre(pluginInstance, file) {
  if (typeof pluginInstance?.pre === "function") {
    pluginInstance.pre.call({ file });
  }
}

export function transformRegExpLiteral(pluginInstance, file, path, helpers = {}) {
  if (!pluginInstance?.visitor?.RegExpLiteral) {
    throw new Error("Invalid plugin instance: missing visitor.RegExpLiteral");
  }
  const thisContext = {
    file,
    addHelper: (name) => {
      if (typeof helpers.addHelper === "function") {
        return helpers.addHelper(name);
      }
      return { type: "Identifier", name };
    }
  };
  return pluginInstance.visitor.RegExpLiteral.call(thisContext, path);
}

export function simulateTransformation({
  pattern,
  flags = "",
  options = {},
  isTest = false,
  api = {}
} = {}) {
  const instance = instantiatePlugin(api, options);
  const file = createFileContext();
  applyPluginPre(instance, file);

  const node = {
    type: "RegExpLiteral",
    pattern,
    flags
  };

  let replacedNode = null;
  const path = {
    node,
    parentPath: {
      isMemberExpression: ({ object, computed }) =>
        isTest && object === node && computed === false,
      get: (prop) => ({
        isIdentifier: ({ name }) => isTest && prop === "property" && name === "test"
      })
    },
    replaceWith(newNode) {
      replacedNode = newNode;
    }
  };

  transformRegExpLiteral(instance, file, path);

  return {
    instance,
    file,
    node,
    replacedNode,
    finalPattern: node.pattern,
    finalFlags: node.flags
  };
}
test/contract.mjs
import assert from "node:assert/strict";
import pluginModule from "@babel/plugin-transform-duplicate-named-capturing-groups-regex";
import {
  duplicateNamedCapturingGroupsRegexPlugin,
  instantiatePlugin,
  createFileContext,
  applyPluginPre,
  transformRegExpLiteral,
  simulateTransformation
} from "../src/index.mjs";

const rawPlugin =
  typeof pluginModule === "function"
    ? pluginModule
    : pluginModule.default || pluginModule;

// Contract 1: Plugin default export is a function factory declaring Babel version compatibility
{
  assert.equal(typeof duplicateNamedCapturingGroupsRegexPlugin, "function");
  assert.equal(typeof rawPlugin, "function");

  let assertedVersion = null;
  const api = {
    assertVersion: (range) => {
      assertedVersion = range;
    }
  };
  const pluginInstance = rawPlugin(api, {});
  assert.equal(assertedVersion, "^7.19.0 || ^8.0.0-0 || >8.0.0-alpha <8.0.0-beta");
  assert.ok(pluginInstance);
}

// Contract 2: Plugin factory returns an object named transform-duplicate-named-capturing-groups-regex with manipulateOptions, pre, and visitor.RegExpLiteral
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  assert.equal(pluginInstance.name, "transform-duplicate-named-capturing-groups-regex");
  assert.equal(typeof pluginInstance.manipulateOptions, "function");
  assert.equal(typeof pluginInstance.pre, "function");
  assert.ok(pluginInstance.visitor);
  assert.equal(typeof pluginInstance.visitor.RegExpLiteral, "function");
}

// Contract 3: Plugin factory throws an Error when runtime option is non-boolean
{
  const api = {
    assertVersion: () => {}
  };
  assert.throws(
    () => instantiatePlugin(api, { runtime: "invalid" }),
    (err) => {
      assert.equal(err.message, "The 'runtime' option must be boolean");
      return true;
    }
  );
}

// Contract 4: Plugin pre() sets duplicateNamedCaptureGroups feature flag and runtime options on Babel file context
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, { runtime: false });
  const file = createFileContext();
  applyPluginPre(pluginInstance, file);

  const featuresKey = "@babel/plugin-regexp-features/featuresKey";
  const runtimeKey = "@babel/plugin-regexp-features/runtimeKey";
  const versionKey = "@babel/plugin-regexp-features/version";

  assert.ok(file.has(featuresKey));
  assert.equal(file.get(runtimeKey), false);
  assert.equal(file.get(versionKey), "7.29.7");
}

// Contract 5: RegExpLiteral visitor compiles duplicate named capturing groups to numbered groups and wraps with wrapRegExp helper when runtime is true
{
  const result = simulateTransformation({
    pattern: "(?<year>\\d{4})-\\d{2}|\\d{2}-(?<year>\\d{4})",
    flags: "",
    options: { runtime: true }
  });

  assert.equal(result.finalPattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.ok(result.replacedNode);
  assert.equal(result.replacedNode.type, "CallExpression");
  assert.equal(result.replacedNode.callee?.name, "wrapRegExp");

  const [regexArg, mappingArg] = result.replacedNode.arguments;
  assert.equal(regexArg.type, "RegExpLiteral");
  assert.equal(regexArg.pattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.equal(mappingArg.type, "ObjectExpression");
  assert.equal(mappingArg.properties[0].key.name, "year");
  assert.deepEqual(
    mappingArg.properties[0].value.elements.map((el) => el.value),
    [1, 2]
  );
}

// Contract 6: RegExpLiteral visitor compiles duplicate named capturing groups without wrapRegExp when runtime is false
{
  const result = simulateTransformation({
    pattern: "(?<year>\\d{4})-\\d{2}|\\d{2}-(?<year>\\d{4})",
    flags: "",
    options: { runtime: false }
  });

  assert.equal(result.finalPattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.equal(result.replacedNode, null);
}

// Contract 7: RegExpLiteral visitor skips wrapRegExp helper wrapping when RegExp is used in a test method expression
{
  const result = simulateTransformation({
    pattern: "(?<year>\\d{4})-\\d{2}|\\d{2}-(?<year>\\d{4})",
    flags: "",
    options: { runtime: true },
    isTest: true
  });

  assert.equal(result.finalPattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.equal(result.replacedNode, null);
}

// Contract 8: RegExpLiteral visitor leaves regular expressions without duplicate named groups unchanged
{
  const result = simulateTransformation({
    pattern: "\\d{4}-\\d{2}",
    flags: "g",
    options: { runtime: true }
  });

  assert.equal(result.finalPattern, "\\d{4}-\\d{2}");
  assert.equal(result.finalFlags, "g");
  assert.equal(result.replacedNode, null);
}

console.log("All @babel/plugin-transform-duplicate-named-capturing-groups-regex contract tests passed successfully.");

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