CodeSampleX

Sample

@esbuild/openharmony-arm64 0.28.2

Verified sample for npm @esbuild/openharmony-arm64 0.28.2. The contract ran on node 22 · linux alpine/x64 · docker and passed.

sha256:7ab3cc6fa079ae0084014881445eafa52fbd982c8a779b91d32356bd496d68f3

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 pkg:npm/%40esbuild/openharmony-arm64@0.28.2
Packages
Environment
node 22.23.2
Created
2026-08-28T04:48:35Z

Contract

  1. package manifest specifies @esbuild/openharmony-arm64 name, version 0.28.2, openharmony OS, and arm64 CPU requirements
  2. locates WebAssembly binary esbuild.wasm and validates binary magic header bytes
  3. esbuild WebAssembly CLI reports matching package version 0.28.2
  4. esbuild transforms TypeScript code to JavaScript with minification
  5. esbuild transforms JSX syntax into standard JavaScript

Files

  • .npmrc
  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Source

.npmrc
force=true
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 pkg:npm/%40esbuild/openharmony-arm64@0.28.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40esbuild/openharmony-arm64@0.28.2
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:b8b12f5280bc5fbe90718f9337cac3015c94811dd874c6a7bf6a54097a4f5a14","constraints":{"executionContext":"node"},"contract":["package manifest specifies @esbuild/openharmony-arm64 name, version 0.28.2, openharmony OS, and arm64 CPU requirements","locates WebAssembly binary esbuild.wasm and validates binary magic header bytes","esbuild WebAssembly CLI reports matching package version 0.28.2","esbuild transforms TypeScript code to JavaScript with minification","esbuild transforms JSX syntax into standard JavaScript"],"goal":"verify pkg:npm/%40esbuild/openharmony-arm64@0.28.2","kind":"HOW","packages":["pkg:npm/%40esbuild/openharmony-arm64@0.28.2"],"schemaVersion":1},"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/%40esbuild/openharmony-arm64@0.28.2"],"schemaVersion":1,"subject":"pkg:npm/%40esbuild/openharmony-arm64@0.28.2","verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "sample-esbuild-openharmony-arm64",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-esbuild-openharmony-arm64",
      "version": "1.0.0",
      "dependencies": {
        "@esbuild/openharmony-arm64": "0.28.2"
      }
    },
    "node_modules/@esbuild/openharmony-arm64": {
      "version": "0.28.2",
      "resolved": "https://registry.npmjs.org/@esbuild/openharmony-arm64/-/openharmony-arm64-0.28.2.tgz",
      "integrity": "sha512-WkhYDmpTjLvGlScA1rwjRUmhl4k8oXR3cIbtqWmELgU/dFeHHlEllxDvdWcNJV9rbzCexB5vz8gtNewWLgCT7Q==",
      "cpu": [
        "arm64"
      ],
      "license": "MIT",
      "os": [
        "openharmony"
      ],
      "engines": {
        "node": ">=18"
      }
    }
  }
}
package.json
{
  "name": "sample-esbuild-openharmony-arm64",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@esbuild/openharmony-arm64": "0.28.2"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40esbuild/openharmony-arm64@0.28.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40esbuild/openharmony-arm64@0.28.2"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
test/contract.mjs
import assert from 'node:assert';
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { execFileSync } from 'node:child_process';
import os from 'node:os';

const __dirname = path.dirname(fileURLToPath(import.meta.url));
const rootDir = path.resolve(__dirname, '..');
const pkgDir = path.join(rootDir, 'node_modules', '@esbuild', 'openharmony-arm64');

// 1. Validate package manifest
const pkgJsonPath = path.join(pkgDir, 'package.json');
assert.ok(fs.existsSync(pkgJsonPath), 'package.json must exist');
const pkgJson = JSON.parse(fs.readFileSync(pkgJsonPath, 'utf8'));
assert.strictEqual(pkgJson.name, '@esbuild/openharmony-arm64', 'Package name must match');
assert.strictEqual(pkgJson.version, '0.28.2', 'Package version must be 0.28.2');
assert.ok(Array.isArray(pkgJson.os) && pkgJson.os.includes('openharmony'), 'os must include openharmony');
assert.ok(Array.isArray(pkgJson.cpu) && pkgJson.cpu.includes('arm64'), 'cpu must include arm64');

// 2. Validate WebAssembly binary format
const wasmPath = path.join(pkgDir, 'esbuild.wasm');
assert.ok(fs.existsSync(wasmPath), 'esbuild.wasm binary must exist');
const wasmStats = fs.statSync(wasmPath);
assert.ok(wasmStats.size > 1000000, `esbuild.wasm size must be > 1MB (actual: ${wasmStats.size})`);

const wasmBuffer = Buffer.alloc(8);
const fd = fs.openSync(wasmPath, 'r');
fs.readSync(fd, wasmBuffer, 0, 8, 0);
fs.closeSync(fd);

// WebAssembly binary format starts with \0asm followed by version 0x01
const expectedMagic = Buffer.from([0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00]);
assert.deepStrictEqual(wasmBuffer, expectedMagic, 'esbuild.wasm must have valid WebAssembly magic header');

// 3. Validate CLI version report
const binPath = path.join(pkgDir, 'bin', 'esbuild');
assert.ok(fs.existsSync(binPath), 'bin/esbuild must exist');

const versionOutput = execFileSync(process.execPath, [binPath, '--version'], {
  encoding: 'utf8',
  timeout: 10000,
}).trim();
assert.strictEqual(versionOutput, '0.28.2', 'esbuild CLI version output must match package version 0.28.2');

// 4. Validate TypeScript transformation with minification
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'esbuild-contract-'));
try {
  const tsInputFile = path.join(tempDir, 'input.ts');
  const tsOutputFile = path.join(tempDir, 'output.js');
  fs.writeFileSync(tsInputFile, 'const multiply = (x: number, y: number): number => x * y;\nconsole.log(multiply(6, 7));\n');

  execFileSync(process.execPath, [
    binPath,
    tsInputFile,
    '--minify',
    `--outfile=${tsOutputFile}`,
  ], {
    timeout: 15000,
  });

  assert.ok(fs.existsSync(tsOutputFile), 'TypeScript output file must exist');
  const tsResult = fs.readFileSync(tsOutputFile, 'utf8');
  assert.ok(!tsResult.includes(': number'), 'TypeScript type annotations must be stripped');
  assert.ok(tsResult.includes('multiply'), 'Minified output must include the function symbol');
  assert.ok(tsResult.includes('console.log('), 'Minified output must include invocation');

  // 5. Validate JSX transformation
  const jsxInputFile = path.join(tempDir, 'input.jsx');
  const jsxOutputFile = path.join(tempDir, 'jsx-output.js');
  fs.writeFileSync(jsxInputFile, 'const App = () => <div className="test">Hello OpenHarmony</div>;\n');

  execFileSync(process.execPath, [
    binPath,
    jsxInputFile,
    '--jsx=transform',
    `--outfile=${jsxOutputFile}`,
  ], {
    timeout: 15000,
  });

  assert.ok(fs.existsSync(jsxOutputFile), 'JSX output file must exist');
  const jsxResult = fs.readFileSync(jsxOutputFile, 'utf8');
  assert.ok(jsxResult.includes('React.createElement("div"'), `JSX output should transform JSX tags to React.createElement: ${jsxResult}`);
  assert.ok(jsxResult.includes('Hello OpenHarmony'), `JSX output should retain content: ${jsxResult}`);
} finally {
  fs.rmSync(tempDir, { recursive: true, force: true });
}

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

Origin Seeder

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