typed-query-selector 2.12.2: typed-query-selector

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 typed-query-selector in pkg:npm/typed-query-selector@2.12.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/typed-query-selector@2.12.2
Demonstrate these symbols/APIs:
  - typed-query-selector

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:sha256:781bad94d83d0f043dda7cf611c2c6c2228ada3384f1ec5a676f039718ed870f","contract":["typed-query-selector package exports shim.d.ts as types and main entry point for version 2.12.2","typed-query-selector shim.d.ts declares global ParentNode querySelector and querySelectorAll with ParseSelector return types","typed-query-selector shim.d.ts declares global Element closest with ParseSelector return type","typed-query-selector strict.d.ts declares global ParentNode and Element methods with StrictlyParseSelector returning never on invalid selectors","typed-query-selector parser.d.ts provides ParseSelector and StrictlyParseSelector type utilities","typed-query-selector parser.d.ts defines TagNameToElement supporting HTMLElementTagNameMap and SVGElementTagNameMap mappings"],"goal":"verify typed-query-selector in pkg:npm/typed-query-selector@2.12.2","kind":"HOW","packages":["pkg:npm/typed-query-selector@2.12.2"],"schemaVersion":1,"symbols":["typed-query-selector"]},"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/typed-query-selector@2.12.2"],"schemaVersion":1,"subject":"pkg:npm/typed-query-selector@2.12.2","symbols":["typed-query-selector"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-typed-query-selector",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-typed-query-selector",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "typed-query-selector": "2.12.2"
      }
    },
    "node_modules/typed-query-selector": {
      "version": "2.12.2",
      "resolved": "https://registry.npmjs.org/typed-query-selector/-/typed-query-selector-2.12.2.tgz",
      "integrity": "sha512-EOPFbyIub4ngnEdqi2yOcNeDLaX/0jcE1JoAXQDDMIthap7FoN795lc/SHfIq2d416VufXpM8z/lD+WRm2gfOQ==",
      "license": "MIT"
    }
  }
}

{
  "name": "sample-typed-query-selector",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "typed-query-selector": "2.12.2"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify typed-query-selector in pkg:npm/typed-query-selector@2.12.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/typed-query-selector@2.12.2"
  ],
  "symbols": [
    "typed-query-selector"
  ]
}

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

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

// 1. typed-query-selector package exports shim.d.ts as types and main entry point for version 2.12.2
const pkgJson = require('typed-query-selector/package.json');
assert.equal(pkgJson.name, 'typed-query-selector');
assert.equal(pkgJson.version, '2.12.2');
assert.equal(pkgJson.main, 'shim.d.ts');
assert.equal(pkgJson.types, 'shim.d.ts');

// 2. typed-query-selector shim.d.ts declares global ParentNode querySelector and querySelectorAll with ParseSelector return types
const shimPath = require.resolve('typed-query-selector/shim.d.ts');
assert.ok(fs.existsSync(shimPath));
const shimContent = fs.readFileSync(shimPath, 'utf8');
assert.ok(shimContent.includes("import type { ParseSelector } from './parser.js'"));
assert.ok(shimContent.includes("querySelector<S extends string>(selector: S): ParseSelector<S> | null"));
assert.ok(shimContent.includes("querySelectorAll<S extends string>("));
assert.ok(shimContent.includes("NodeListOf<ParseSelector<S>>"));

// 3. typed-query-selector shim.d.ts declares global Element closest with ParseSelector return type
assert.ok(shimContent.includes("closest<S extends string>(selector: S): ParseSelector<S> | null"));

// 4. typed-query-selector strict.d.ts declares global ParentNode and Element methods with StrictlyParseSelector returning never on invalid selectors
const strictPath = require.resolve('typed-query-selector/strict.d.ts');
assert.ok(fs.existsSync(strictPath));
const strictContent = fs.readFileSync(strictPath, 'utf8');
assert.ok(strictContent.includes("import type { StrictlyParseSelector } from './parser.js'"));
assert.ok(strictContent.includes("querySelector<S extends string, E extends StrictlyParseSelector<S>>("));
assert.ok(strictContent.includes("[E] extends [never] ? never : E | null"));
assert.ok(strictContent.includes("querySelectorAll<S extends string, E extends StrictlyParseSelector<S>>("));
assert.ok(strictContent.includes("[E] extends [never] ? never : NodeListOf<E>"));
assert.ok(strictContent.includes("closest<S extends string, E extends StrictlyParseSelector<S>>("));

// 5. typed-query-selector parser.d.ts provides ParseSelector and StrictlyParseSelector type utilities
const parserPath = require.resolve('typed-query-selector/parser.d.ts');
assert.ok(fs.existsSync(parserPath));
const parserContent = fs.readFileSync(parserPath, 'utf8');
assert.ok(parserContent.includes("export type ParseSelector<"));
assert.ok(parserContent.includes("export type StrictlyParseSelector<"));

// 6. typed-query-selector parser.d.ts defines TagNameToElement supporting HTMLElementTagNameMap and SVGElementTagNameMap mappings
assert.ok(parserContent.includes("export type TagNameToElement<"));
assert.ok(parserContent.includes("Tag extends keyof HTMLElementTagNameMap"));
assert.ok(parserContent.includes("Tag extends keyof SVGElementTagNameMap"));

console.log('All contract assertions for typed-query-selector passed.');