CodeSampleX

Sample

typescript 7.0.2: createStringLiteral

Verified sample for npm typescript 7.0.2: createStringLiteral. The contract ran on node 22 · linux alpine/x64 · docker and passed.

sha256:fd914769690d05ffd058570d55e5e8a3997856e67bd63b5ba4c035ffe387eefd

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
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…		 2026-08-28

Case

HOW
Goal
verify typescript.createStringLiteral in pkg:npm/typescript@7.0.2
Packages
Symbols
  • typescript.createStringLiteral
Environment
node 22.23.2
Created
2026-08-28T07:35:09Z

Contract

  1. typescript/unstable/ast/factory exports createStringLiteral function
  2. createStringLiteral constructs AST StringLiteral node with SyntaxKind.StringLiteral and text property
  3. createStringLiteral accepts tokenFlags such as TokenFlags.SingleQuote
  4. typescript/unstable/ast isStringLiteral returns true for nodes produced by createStringLiteral

Files

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

Download the source artifact (tar.gz)

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 typescript.createStringLiteral in pkg:npm/typescript@7.0.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/typescript@7.0.2
Demonstrate these symbols/APIs:
  - typescript.createStringLiteral
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.
csx.json
{"case":{"caseId":"case:sha256:1566de6e4287a02f789a2f6581d2d8a830f7723d68eac40613e366af7993dea3","constraints":{"executionContext":"node"},"contract":["typescript/unstable/ast/factory exports createStringLiteral function","createStringLiteral constructs AST StringLiteral node with SyntaxKind.StringLiteral and text property","createStringLiteral accepts tokenFlags such as TokenFlags.SingleQuote","typescript/unstable/ast isStringLiteral returns true for nodes produced by createStringLiteral"],"goal":"verify typescript.createStringLiteral in pkg:npm/typescript@7.0.2","kind":"HOW","packages":["pkg:npm/typescript@7.0.2"],"schemaVersion":1,"symbols":["typescript.createStringLiteral"]},"contractCommand":["node","test/contract.js"],"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/typescript@7.0.2"],"schemaVersion":1,"subject":"pkg:npm/typescript@7.0.2","symbols":["typescript.createStringLiteral"],"verifierAdapter":"node-typescript@1"}
index.js
const { createStringLiteral } = require('typescript/unstable/ast/factory');
const { SyntaxKind, TokenFlags, isStringLiteral } = require('typescript/unstable/ast');

function buildStringLiteralNode(text, isSingleQuote = false) {
  const flags = isSingleQuote ? TokenFlags.SingleQuote : TokenFlags.None;
  return createStringLiteral(text, flags);
}

function verifyStringLiteralNode(node, expectedText) {
  if (!isStringLiteral(node)) {
    return false;
  }
  return node.kind === SyntaxKind.StringLiteral && node.text === expectedText;
}

module.exports = {
  buildStringLiteralNode,
  verifyStringLiteralNode,
  createStringLiteral,
  SyntaxKind,
  TokenFlags,
  isStringLiteral
};
package-lock.json
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}
package.json
{
  "name": "sample-typescript-create-string-literal",
  "version": "1.0.0",
  "private": true,
  "description": "verify typescript.createStringLiteral in pkg:npm/typescript@7.0.2",
  "main": "index.js",
  "scripts": {
    "test": "node test/contract.js"
  },
  "dependencies": {
    "typescript": "7.0.2"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify typescript.createStringLiteral in pkg:npm/typescript@7.0.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/typescript@7.0.2"
  ],
  "symbols": [
    "typescript.createStringLiteral"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
test/contract.js
const assert = require('node:assert');
const {
  buildStringLiteralNode,
  verifyStringLiteralNode,
  createStringLiteral,
  SyntaxKind,
  TokenFlags,
  isStringLiteral
} = require('../index.js');

// Proves createStringLiteral constructs a StringLiteral AST node
const nodeDouble = createStringLiteral('hello');
assert.strictEqual(typeof createStringLiteral, 'function');
assert.strictEqual(nodeDouble.kind, SyntaxKind.StringLiteral);
assert.strictEqual(nodeDouble.text, 'hello');
assert.strictEqual(isStringLiteral(nodeDouble), true);

// Proves createStringLiteral accepts single quote token flags
const nodeSingle = buildStringLiteralNode('world', true);
assert.strictEqual(nodeSingle.kind, SyntaxKind.StringLiteral);
assert.strictEqual(nodeSingle.text, 'world');
assert.strictEqual(isStringLiteral(nodeSingle), true);
assert.strictEqual(nodeSingle._data.tokenFlags, TokenFlags.SingleQuote);

// Proves verifyStringLiteralNode helper correctly validates AST node
assert.strictEqual(verifyStringLiteralNode(nodeDouble, 'hello'), true);
assert.strictEqual(verifyStringLiteralNode(nodeSingle, 'world'), true);
assert.strictEqual(verifyStringLiteralNode(nodeDouble, 'mismatch'), false);

console.log('Contract test passed successfully.');

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