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サンプル

@babel/plugin-syntax-numeric-separator 7.10.4: parse numeric separator syntax with babel plugin

検証済みサンプル — npm @babel/plugin-syntax-numeric-separator 7.10.4: parse numeric separator syntax with babel plugin. node 22 · linux alpine/x64 · docker で…

sha256:e3c309fff3bff42855695c367ecba71973f0e7cf510efd81cc73a2d77a8123dd

このネットワークが提供するのは一つだけです。ビルドされるサンプル。サンドボックスで実行し、署名済みの受領証を保管します。等級はつけず、何も保証しません — 同じコードがあなたの環境でビルドされるかは測定していません。 合格した契約受領証を提出した異なる署名鍵の数です。1 なら作者だけ、2 以上なら他の誰かもビルドしています。鍵は自己生成で背後に登録された身元がないため、数えているのは人ではなく鍵です。 MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

証拠の基準
署名済みコントラクト合格
検証レシート
1
ビルドした署名鍵
1
宣言された環境 linux 24 · ubuntu · glibc 2.39 x64 npm

検証実行環境

環境 コントラクト ステージ 実行日
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…		 2026-08-27

ケース

HOW
ゴール
parse numeric separator syntax with babel plugin
パッケージ
作成日
2026-08-27T21:33:10Z

コントラクト

  1. Plugin default export is a function factory asserting Babel 7 compatibility
  2. Plugin factory returns an object named syntax-numeric-separator with a manipulateOptions hook
  3. manipulateOptions pushes numericSeparator into parser options plugins array
  4. manipulateOptions appends numericSeparator to existing plugins list without removing other plugins
  5. Module helper enableNumericSeparator returns updated parser options while preserving input immutability

ファイル

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

ソースアーティファクトをダウンロード (tar.gz)

ソース

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: parse numeric separator syntax with babel plugin
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/plugin-syntax-numeric-separator@7.10.4

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
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package-lock.json
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package.json
{
  "name": "sample-babel-plugin-syntax-numeric-separator",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/plugin-syntax-numeric-separator": "7.10.4"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "parse numeric separator syntax with babel plugin",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/plugin-syntax-numeric-separator@7.10.4"
  ]
}
src/index.mjs
import numericSeparatorPluginModule from "@babel/plugin-syntax-numeric-separator";

export const numericSeparatorPlugin =
  typeof numericSeparatorPluginModule === "function"
    ? numericSeparatorPluginModule
    : numericSeparatorPluginModule.default || numericSeparatorPluginModule;

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

export function enableNumericSeparator(parserOpts = {}) {
  const plugins = parserOpts.plugins || [];
  const normalizedParserOpts = { ...parserOpts, plugins: [...plugins] };
  const pluginInstance = instantiatePlugin();
  if (typeof pluginInstance.manipulateOptions === "function") {
    pluginInstance.manipulateOptions({}, normalizedParserOpts);
  }
  return normalizedParserOpts;
}
test/contract.mjs
import assert from "node:assert/strict";
import numericSeparatorPluginModule from "@babel/plugin-syntax-numeric-separator";
import {
  numericSeparatorPlugin,
  instantiatePlugin,
  enableNumericSeparator
} from "../src/index.mjs";

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

// Contract 1: Plugin default export is a function factory asserting Babel 7 compatibility
{
  assert.equal(typeof numericSeparatorPlugin, "function");
  assert.equal(typeof rawPlugin, "function");

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

// Contract 2: Plugin factory returns an object named syntax-numeric-separator with a manipulateOptions hook
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  assert.equal(pluginInstance.name, "syntax-numeric-separator");
  assert.equal(typeof pluginInstance.manipulateOptions, "function");
}

// Contract 3: manipulateOptions pushes numericSeparator into parser options plugins array
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  const parserOpts = { plugins: [] };
  pluginInstance.manipulateOptions({}, parserOpts);
  assert.deepEqual(parserOpts.plugins, ["numericSeparator"]);
}

// Contract 4: manipulateOptions appends numericSeparator to existing plugins list without removing other plugins
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  const parserOpts = { plugins: ["jsx", "typescript"] };
  pluginInstance.manipulateOptions({}, parserOpts);
  assert.deepEqual(parserOpts.plugins, ["jsx", "typescript", "numericSeparator"]);
}

// Contract 5: Module helper enableNumericSeparator returns updated parser options while preserving input immutability
{
  const initialOpts = { plugins: ["asyncGenerators"] };
  const updatedOpts = enableNumericSeparator(initialOpts);
  assert.deepEqual(updatedOpts.plugins, ["asyncGenerators", "numericSeparator"]);
  assert.deepEqual(initialOpts.plugins, ["asyncGenerators"]);

  const emptyOptsResult = enableNumericSeparator();
  assert.deepEqual(emptyOptsResult.plugins, ["numericSeparator"]);
}

console.log("All @babel/plugin-syntax-numeric-separator contract tests passed successfully.");

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