@types/react-dom 19.2.4: name

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 @types/react-dom.name in pkg:npm/%40types/react-dom@19.2.4
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40types/react-dom@19.2.4
Demonstrate these symbols/APIs:
  - @types/react-dom.name
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - 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.

{"case":{"caseId":"case:sha256:e9d5a8edad566e4c8a19138bc0ad1d1864ee795174a8f1f702ced0cc4dc6a2a2","constraints":{"executionContext":"node"},"contract":["@types/react-dom package manifest defines package name as '@types/react-dom' at version 19.2.4","getReactDomPackageName helper resolves and returns package name '@types/react-dom'","inspectReactDomPackageMetadata verifies package name, types entrypoint, and repository directory for @types/react-dom","Type definition entrypoints and exports map correspond to package name scope @types/react-dom"],"goal":"verify @types/react-dom.name in pkg:npm/%40types/react-dom@19.2.4","kind":"HOW","packages":["pkg:npm/%40types/react-dom@19.2.4"],"schemaVersion":1,"symbols":["@types/react-dom.name"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40types/react-dom@19.2.4"],"schemaVersion":1,"subject":"pkg:npm/%40types/react-dom@19.2.4","symbols":["@types/react-dom.name"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-react-dom-types-name",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-react-dom-types-name",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@types/react-dom": "19.2.4"
      }
    },
    "node_modules/@types/react": {
      "version": "19.2.18",
      "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.18.tgz",
      "integrity": "sha512-AnzbBERsrLKtk2XSfTbYRLjQPdy116Sty4q+T+Bp3IC4l6jNBvreVPAHmpq9qhXQM7CXZPjLVmGMw9sy+hxQ3w==",
      "license": "MIT",
      "peer": true,
      "dependencies": {
        "csstype": "^3.2.2"
      }
    },
    "node_modules/@types/react-dom": {
      "version": "19.2.4",
      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.4.tgz",
      "integrity": "sha512-Bsc+QHgp+P/F02XDzNCY9jnZNCUuLki36KT7VKrTXXLdHf+vHMNZnW1rVu5DNW/rCK+fya3DATySbLM4yhtKUw==",
      "license": "MIT",
      "peerDependencies": {
        "@types/react": "^19.2.0"
      }
    },
    "node_modules/csstype": {
      "version": "3.2.3",
      "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
      "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==",
      "license": "MIT",
      "peer": true
    }
  }
}

{
  "name": "sample-react-dom-types-name",
  "version": "1.0.0",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "@types/react-dom": "19.2.4"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify @types/react-dom.name in pkg:npm/%40types/react-dom@19.2.4",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40types/react-dom@19.2.4"
  ],
  "symbols": [
    "@types/react-dom.name"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}

import fs from 'node:fs';
import path from 'node:path';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);

/**
 * Resolves the path to @types/react-dom package.json.
 * @returns {string} Absolute path to package.json
 */
export function getReactDomPackageJsonPath() {
  return require.resolve('@types/react-dom/package.json');
}

/**
 * Loads and parses the @types/react-dom package.json manifest.
 * @returns {object} Parsed package.json object
 */
export function loadReactDomPackageManifest() {
  const pkgPath = getReactDomPackageJsonPath();
  const raw = fs.readFileSync(pkgPath, 'utf8');
  return JSON.parse(raw);
}

/**
 * Retrieves the package name defined in @types/react-dom.
 * @returns {string} Package name
 */
export function getReactDomPackageName() {
  const manifest = loadReactDomPackageManifest();
  return manifest.name;
}

/**
 * Inspects package metadata including name, version, and type entrypoints.
 * @returns {object} Summary of package metadata
 */
export function inspectReactDomPackageMetadata() {
  const manifest = loadReactDomPackageManifest();
  return {
    name: manifest.name,
    version: manifest.version,
    types: manifest.types,
    hasExports: Boolean(manifest.exports && manifest.exports['.']),
    hasClientExport: Boolean(manifest.exports && manifest.exports['./client']),
    hasServerExport: Boolean(manifest.exports && manifest.exports['./server']),
    hasStaticExport: Boolean(manifest.exports && manifest.exports['./static']),
    repositoryDirectory: manifest.repository?.directory
  };
}

import assert from 'node:assert/strict';
import {
  getReactDomPackageJsonPath,
  loadReactDomPackageManifest,
  getReactDomPackageName,
  inspectReactDomPackageMetadata
} from '../src/index.mjs';

// Contract 1: @types/react-dom package manifest defines package name as '@types/react-dom' at version 19.2.4
{
  const manifest = loadReactDomPackageManifest();
  assert.equal(manifest.name, '@types/react-dom');
  assert.equal(manifest.version, '19.2.4');
  assert.equal(manifest.types, 'index.d.ts');
}

// Contract 2: getReactDomPackageName helper resolves and returns package name '@types/react-dom'
{
  const name = getReactDomPackageName();
  assert.equal(name, '@types/react-dom');
}

// Contract 3: inspectReactDomPackageMetadata verifies package name, types entrypoint, and repository directory for @types/react-dom
{
  const metadata = inspectReactDomPackageMetadata();
  assert.equal(metadata.name, '@types/react-dom');
  assert.equal(metadata.version, '19.2.4');
  assert.equal(metadata.types, 'index.d.ts');
  assert.equal(metadata.repositoryDirectory, 'types/react-dom');
  assert.equal(metadata.hasExports, true);
  assert.equal(metadata.hasClientExport, true);
  assert.equal(metadata.hasServerExport, true);
  assert.equal(metadata.hasStaticExport, true);
}

// Contract 4: Type definition entrypoints and exports map correspond to package name scope @types/react-dom
{
  const manifest = loadReactDomPackageManifest();
  assert.ok(manifest.exports['.']);
  assert.ok(manifest.exports['./client']);
  assert.ok(manifest.exports['./server']);
  assert.ok(manifest.exports['./static']);
  assert.ok(manifest.peerDependencies['@types/react']);
}

console.log('Contract tests passed: @types/react-dom.name verified.');