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Exemple

@babel/plugin-syntax-class-static-block 7.14.5: verify class static block syntax parsing in babel

Échantillon vérifié pour npm @babel/plugin-syntax-class-static-block 7.14.5: verify class static block syntax parsing in babel. Le contrat s'est exécuté sur…

sha256:079aced7042e9a731393de47b43a639ff8282952f1f816305c0b783c47b9b292

Ce réseau offre une seule chose : un échantillon qui compile. Il l'a exécuté dans un bac à sable et conservé le reçu signé. Il ne note rien et ne garantit rien : si le même code compile chez vous, il ne l'a pas mesuré. Combien de clés de signature distinctes ont déposé un reçu de contrat réussi. Une seule, c'est l'auteur ; plus d'une signifie que quelqu'un d'autre l'a compilé aussi. Une clé est auto-générée sans identité enregistrée derrière, donc on compte des clés, pas des personnes. MIT-0

Preuves d'exécution

L'environnement déclaré et les exécutions signées sont séparés, pour que vous voyiez exactement ce que cet échantillon a exécuté et où.

Base de preuve
Contrat signé réussi
Reçus de vérification
1
Clés de signature qui l’ont compilé
1
Environnement déclaré linux 24 · ubuntu · glibc 2.39 x64 npm

Environnements des exécutions de vérification

Environnement Contrat Étapes Exécution
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…		 2026-08-26

Cas

HOW
Objectif
verify class static block syntax parsing in babel
Paquets
Symboles
  • @babel/plugin-syntax-class-static-block
Créé
2026-08-26T14:14:34Z

Contrat

  1. plugin exports a default plugin factory asserting Babel 7 compatibility
  2. plugin factory returns plugin descriptor with name syntax-class-static-block
  3. manipulateOptions appends classStaticBlock to parser plugins list
  4. manipulateOptions preserves existing parser plugins when adding classStaticBlock
  5. configureParserOptions helper creates plugin instance and updates parserOpts
  6. hasStaticBlockSyntax accurately checks presence of classStaticBlock in parser options

Fichiers

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

Télécharger l’artefact source (tar.gz)

Code 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 class static block syntax parsing in babel
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/plugin-syntax-class-static-block@7.14.5
Demonstrate these symbols/APIs:
  - @babel/plugin-syntax-class-static-block

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:sha256:5d1e182523f2cc74d995002304cc8751c11f7ea4cf593ddc02e69eb40bf85a24","contract":["plugin exports a default plugin factory asserting Babel 7 compatibility","plugin factory returns plugin descriptor with name syntax-class-static-block","manipulateOptions appends classStaticBlock to parser plugins list","manipulateOptions preserves existing parser plugins when adding classStaticBlock","configureParserOptions helper creates plugin instance and updates parserOpts","hasStaticBlockSyntax accurately checks presence of classStaticBlock in parser options"],"goal":"verify class static block syntax parsing in babel","kind":"HOW","packages":["pkg:npm/%40babel/plugin-syntax-class-static-block@7.14.5"],"schemaVersion":1,"symbols":["@babel/plugin-syntax-class-static-block"]},"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/%40babel/plugin-syntax-class-static-block@7.14.5"],"schemaVersion":1,"subject":"pkg:npm/%40babel/plugin-syntax-class-static-block@7.14.5","symbols":["@babel/plugin-syntax-class-static-block"],"verifierAdapter":"node-typescript@1"}
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package.json
{
  "name": "sample-babel-plugin-syntax-class-static-block",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/plugin-syntax-class-static-block": "7.14.5"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify class static block syntax parsing in babel",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/plugin-syntax-class-static-block@7.14.5"
  ],
  "symbols": [
    "@babel/plugin-syntax-class-static-block"
  ]
}
src/index.mjs
import rawPlugin from "@babel/plugin-syntax-class-static-block";

export const pluginSyntaxClassStaticBlock =
  typeof rawPlugin === "function" ? rawPlugin : rawPlugin.default || rawPlugin;

export function createPluginInstance(api = {}, options = {}) {
  const normalizedApi = {
    assertVersion: (range) => {
      if (typeof api.assertVersion === "function") {
        api.assertVersion(range);
      }
    },
    ...api
  };
  return pluginSyntaxClassStaticBlock(normalizedApi, options);
}

export function applySyntaxPlugin(pluginInstance, parserOpts = {}) {
  if (!pluginInstance || typeof pluginInstance.manipulateOptions !== "function") {
    throw new Error("Invalid plugin instance: missing manipulateOptions");
  }
  if (!parserOpts.plugins) {
    parserOpts.plugins = [];
  }
  pluginInstance.manipulateOptions({}, parserOpts);
  return parserOpts;
}

export function configureParserOptions(parserOpts = {}, options = {}, api = {}) {
  const instance = createPluginInstance(api, options);
  return applySyntaxPlugin(instance, parserOpts);
}

export function hasStaticBlockSyntax(parserOpts = {}) {
  return Array.isArray(parserOpts.plugins) && parserOpts.plugins.includes("classStaticBlock");
}
test/contract.mjs
import assert from "node:assert/strict";
import rawPluginModule from "@babel/plugin-syntax-class-static-block";
import {
  pluginSyntaxClassStaticBlock,
  createPluginInstance,
  applySyntaxPlugin,
  configureParserOptions,
  hasStaticBlockSyntax
} from "../src/index.mjs";

const rawPlugin =
  typeof rawPluginModule === "function"
    ? rawPluginModule
    : rawPluginModule.default || rawPluginModule;

// Contract 1: plugin exports a default plugin factory asserting Babel 7 compatibility
{
  assert.equal(typeof pluginSyntaxClassStaticBlock, "function");
  assert.equal(typeof rawPlugin, "function");

  let assertedVersion = null;
  const api = {
    assertVersion: (v) => {
      assertedVersion = v;
    }
  };
  const instance = rawPlugin(api, {});
  assert.equal(assertedVersion, 7);
  assert.ok(instance);

  const failingApi = {
    assertVersion: (v) => {
      if (v !== 7) throw new Error(`Unsupported version: ${v}`);
      throw new Error("Simulated version mismatch");
    }
  };
  assert.throws(() => rawPlugin(failingApi, {}), /Simulated version mismatch/);
}

// Contract 2: plugin factory returns plugin descriptor with name syntax-class-static-block
{
  const api = {
    assertVersion: () => {}
  };
  const instance = createPluginInstance(api, {});
  assert.equal(typeof instance, "object");
  assert.equal(instance.name, "syntax-class-static-block");
  assert.equal(typeof instance.manipulateOptions, "function");
}

// Contract 3: manipulateOptions appends classStaticBlock to parser plugins list
{
  const instance = createPluginInstance({ assertVersion: () => {} });
  const parserOpts = { plugins: ["typescript"] };

  applySyntaxPlugin(instance, parserOpts);

  assert.deepEqual(parserOpts.plugins, ["typescript", "classStaticBlock"]);
}

// Contract 4: manipulateOptions preserves existing parser plugins when adding classStaticBlock
{
  const instance = createPluginInstance({ assertVersion: () => {} });
  const initialPlugins = ["jsx", "decorators-legacy", "asyncGenerators"];
  const parserOpts = { plugins: [...initialPlugins] };

  applySyntaxPlugin(instance, parserOpts);

  assert.equal(parserOpts.plugins.length, 4);
  assert.deepEqual(parserOpts.plugins.slice(0, 3), initialPlugins);
  assert.equal(parserOpts.plugins[3], "classStaticBlock");
}

// Contract 5: configureParserOptions helper creates plugin instance and updates parserOpts
{
  const emptyParserOpts = {};
  const result = configureParserOptions(emptyParserOpts);

  assert.ok(Array.isArray(result.plugins));
  assert.ok(result.plugins.includes("classStaticBlock"));
  assert.equal(emptyParserOpts, result);
}

// Contract 6: hasStaticBlockSyntax accurately checks presence of classStaticBlock in parser options
{
  assert.equal(hasStaticBlockSyntax({}), false);
  assert.equal(hasStaticBlockSyntax({ plugins: ["jsx", "flow"] }), false);
  assert.equal(hasStaticBlockSyntax({ plugins: ["jsx", "classStaticBlock"] }), true);
}

console.log("All @babel/plugin-syntax-class-static-block contract tests passed successfully.");

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