@types/estree 1.0.9: typeScriptVersion

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/estree.typeScriptVersion in pkg:npm/%40types/estree@1.0.9
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40types/estree@1.0.9
Demonstrate these symbols/APIs:
  - @types/estree.typeScriptVersion

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:sha256:89fb3e8f472c512df500c4f6e5b49f4e848567efb04a22c3822fc77357ea9632","contract":["@types/estree package.json declares typeScriptVersion \"5.3\"","@types/estree package.json declares name \"@types/estree\", version \"1.0.9\", and types entry point \"index.d.ts\"","@types/estree index.d.ts declares ImportAttribute interface with type \"ImportAttribute\", key, and value properties","@types/estree index.d.ts declares ImportDeclaration interface with attributes array of ImportAttribute","@types/estree index.d.ts declares ImportExpression interface with optional options expression for dynamic import attributes","@types/estree index.d.ts declares ExportNamedDeclaration and ExportAllDeclaration interfaces with attributes array of ImportAttribute","AST node objects representing TypeScript 5.3 import attributes construct and validate properly"],"goal":"verify @types/estree.typeScriptVersion in pkg:npm/%40types/estree@1.0.9","kind":"HOW","packages":["pkg:npm/%40types/estree@1.0.9"],"schemaVersion":1,"symbols":["@types/estree.typeScriptVersion"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","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/estree@1.0.9"],"schemaVersion":1,"subject":"pkg:npm/%40types/estree@1.0.9","symbols":["@types/estree.typeScriptVersion"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-types-estree-typescript-version",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-types-estree-typescript-version",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@types/estree": "1.0.9"
      }
    },
    "node_modules/@types/estree": {
      "version": "1.0.9",
      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.9.tgz",
      "integrity": "sha512-GhdPgy1el4/ImP05X05Uw4cw2/M93BCUmnEvWZNStlCzEKME4Fkk+YpoA5OiHNQmoS7Cafb8Xa3Pya8m1Qrzeg==",
      "license": "MIT"
    }
  }
}

{
  "name": "sample-types-estree-typescript-version",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "@types/estree": "1.0.9"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify @types/estree.typeScriptVersion in pkg:npm/%40types/estree@1.0.9",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40types/estree@1.0.9"
  ],
  "symbols": [
    "@types/estree.typeScriptVersion"
  ]
}

import assert from 'node:assert/strict';
import fs from 'node:fs';
import { createRequire } from 'node:module';

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

// 1. @types/estree package.json declares typeScriptVersion "5.3"
const pkgJson = require('@types/estree/package.json');
assert.equal(pkgJson.typeScriptVersion, '5.3');

// 2. @types/estree package.json declares name "@types/estree", version "1.0.9", and types entry point "index.d.ts"
assert.equal(pkgJson.name, '@types/estree');
assert.equal(pkgJson.version, '1.0.9');
assert.equal(pkgJson.types, 'index.d.ts');

const dtsPath = require.resolve('@types/estree/index.d.ts');
assert.ok(fs.existsSync(dtsPath));
const dtsContent = fs.readFileSync(dtsPath, 'utf8');

// 3. @types/estree index.d.ts declares ImportAttribute interface with type "ImportAttribute", key, and value properties
assert.ok(dtsContent.includes('export interface ImportAttribute extends BaseNode {'));
assert.ok(dtsContent.includes('type: "ImportAttribute";'));
assert.ok(dtsContent.includes('key: Identifier | Literal;'));
assert.ok(dtsContent.includes('value: Literal;'));

// 4. @types/estree index.d.ts declares ImportDeclaration interface with attributes array of ImportAttribute
assert.ok(dtsContent.includes('export interface ImportDeclaration extends BaseModuleDeclaration {'));
assert.ok(dtsContent.includes('attributes: ImportAttribute[];'));

// 5. @types/estree index.d.ts declares ImportExpression interface with optional options expression for dynamic import attributes
assert.ok(dtsContent.includes('export interface ImportExpression extends BaseExpression {'));
assert.ok(dtsContent.includes('options?: Expression | null | undefined;'));

// 6. @types/estree index.d.ts declares ExportNamedDeclaration and ExportAllDeclaration interfaces with attributes array of ImportAttribute
assert.ok(dtsContent.includes('export interface ExportNamedDeclaration extends BaseModuleDeclaration {'));
assert.ok(dtsContent.includes('export interface ExportAllDeclaration extends BaseModuleDeclaration {'));

// 7. AST node objects representing TypeScript 5.3 import attributes construct and validate properly
const importAttribute = {
  type: 'ImportAttribute',
  key: { type: 'Identifier', name: 'type' },
  value: { type: 'Literal', value: 'json', raw: '"json"' },
};
assert.equal(importAttribute.type, 'ImportAttribute');
assert.equal(importAttribute.key.name, 'type');
assert.equal(importAttribute.value.value, 'json');

const importDeclaration = {
  type: 'ImportDeclaration',
  specifiers: [],
  source: { type: 'Literal', value: './data.json', raw: '"./data.json"' },
  attributes: [importAttribute],
};
assert.equal(importDeclaration.type, 'ImportDeclaration');
assert.equal(importDeclaration.attributes.length, 1);
assert.equal(importDeclaration.attributes[0].key.name, 'type');

const importExpression = {
  type: 'ImportExpression',
  source: { type: 'Literal', value: './data.json', raw: '"./data.json"' },
  options: {
    type: 'ObjectExpression',
    properties: [],
  },
};
assert.equal(importExpression.type, 'ImportExpression');
assert.ok(importExpression.options);

console.log('All @types/estree.typeScriptVersion contract tests passed.');