CodeSampleX

サンプル

@eslint/eslintrc 3.3.7: FlatCompat, Legacy

検証済みサンプル — npm @eslint/eslintrc 3.3.7: FlatCompat, Legacy. node 22 · linux debian/x64 · docker で contract を実行し、成功しました: assert FlatCompat instantiates with…

sha256:130f29cf9d3cb53494a2f422cb364c7e040f3d44a3579b9f8ac29d83f41187a6

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript 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 debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-09-19

ケース

HOW
ゴール
verify pkg:npm/%40eslint/eslintrc@3.3.7
パッケージ
シンボル
  • @eslint/eslintrc.FlatCompat
  • @eslint/eslintrc.Legacy
環境
node 22.23.2
作成日
2026-09-18T19:16:20Z

コントラクト

  1. assert FlatCompat instantiates with baseDirectory and configuration presets
  2. assert FlatCompat.config translates legacy eslintrc rules and settings into flat config objects
  3. assert FlatCompat.env translates legacy env flags into languageOptions globals
  4. assert FlatCompat.extends translates recommendedConfig via extends('eslint:recommended')
  5. assert Legacy.environments exposes predefined environment configs with builtin globals
  6. assert Legacy.naming normalizes plugin package names with prefixes and resolves shorthand identifiers
  7. assert Legacy.ConfigOps resolves and checks rule severity values across numeric, string, and array formats

ファイル

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

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: verify pkg:npm/%40eslint/eslintrc@3.3.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40eslint/eslintrc@3.3.7
Demonstrate these symbols/APIs:
  - @eslint/eslintrc.FlatCompat
  - @eslint/eslintrc.Legacy

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:a288d6853bc44d4f505d0f6569c1e4b72c333bf819a188658dfa11b7bade1f2d","contract":["assert FlatCompat instantiates with baseDirectory and configuration presets","assert FlatCompat.config translates legacy eslintrc rules and settings into flat config objects","assert FlatCompat.env translates legacy env flags into languageOptions globals","assert FlatCompat.extends translates recommendedConfig via extends('eslint:recommended')","assert Legacy.environments exposes predefined environment configs with builtin globals","assert Legacy.naming normalizes plugin package names with prefixes and resolves shorthand identifiers","assert Legacy.ConfigOps resolves and checks rule severity values across numeric, string, and array formats"],"goal":"verify pkg:npm/%40eslint/eslintrc@3.3.7","kind":"HOW","packages":["pkg:npm/%40eslint/eslintrc@3.3.7"],"schemaVersion":1,"symbols":["@eslint/eslintrc.FlatCompat","@eslint/eslintrc.Legacy"]},"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","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40eslint/eslintrc@3.3.7"],"schemaVersion":1,"subject":"pkg:npm/%40eslint/eslintrc@3.3.7","symbols":["@eslint/eslintrc.FlatCompat","@eslint/eslintrc.Legacy"],"verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "sample-eslint-eslintrc",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-eslint-eslintrc",
      "version": "1.0.0",
      "dependencies": {
        "@eslint/eslintrc": "3.3.7"
      }
    },
    "node_modules/@eslint/eslintrc": {
      "version": "3.3.7",
      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-3.3.7.tgz",
      "integrity": "sha512-F42g89Qd5oAWtp0k0nnSrjziAKza7w8SVT4mStc18LZMaRb4J1HQAHLCalEtDCxrTuksx7NU9qsmeLwpOfPqWw==",
      "license": "MIT",
      "dependencies": {
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        "espree": "^10.0.1",
        "globals": "^14.0.0",
        "ignore": "^5.2.0",
        "import-fresh": "^3.2.1",
        "js-yaml": "^4.3.2",
        "minimatch": "^3.1.5",
        "strip-json-comments": "^3.1.1"
      },
      "engines": {
        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
      },
      "funding": {
        "url": "https://opencollective.com/eslint"
      }
    },
    "node_modules/acorn": {
      "version": "8.18.0",
      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.18.0.tgz",
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      "license": "MIT",
      "bin": {
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    },
    "node_modules/acorn-jsx": {
      "version": "5.3.2",
      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
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      "dependencies": {
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      "engines": {
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      "peerDependenciesMeta": {
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      },
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      "engines": {
        "node": "*"
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        "node": ">=6"
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      "license": "MIT",
      "engines": {
        "node": ">=4"
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    "node_modules/strip-json-comments": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.1.tgz",
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      "license": "MIT",
      "engines": {
        "node": ">=8"
      },
      "funding": {
        "url": "https://github.com/sponsors/sindresorhus"
      }
    },
    "node_modules/uri-js": {
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      "license": "BSD-2-Clause",
      "dependencies": {
        "punycode": "^2.1.0"
      }
    }
  }
}
package.json
{
  "name": "sample-eslint-eslintrc",
  "version": "1.0.0",
  "private": true,
  "dependencies": {
    "@eslint/eslintrc": "3.3.7"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40eslint/eslintrc@3.3.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40eslint/eslintrc@3.3.7"
  ],
  "symbols": [
    "@eslint/eslintrc.FlatCompat",
    "@eslint/eslintrc.Legacy"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "runtime": "node@22.23.2"
  }
}
src/index.js
const { FlatCompat, Legacy } = require("@eslint/eslintrc");

function createCompat(options = {}) {
  return new FlatCompat({
    baseDirectory: options.baseDirectory || process.cwd(),
    recommendedConfig: options.recommendedConfig,
    allConfig: options.allConfig,
    resolvePluginsRelativeTo: options.resolvePluginsRelativeTo,
  });
}

function translateConfig(compat, config) {
  return compat.config(config);
}

function translateEnv(compat, env) {
  return compat.env(env);
}

function translateExtends(compat, ...configs) {
  return compat.extends(...configs);
}

function getPredefinedEnvironment(envName) {
  return Legacy.environments.get(envName);
}

function normalizePluginName(name, prefix) {
  return Legacy.naming.normalizePackageName(name, prefix);
}

function checkRuleSeverity(ruleConfig) {
  return Legacy.ConfigOps.getRuleSeverity(ruleConfig);
}

module.exports = {
  createCompat,
  translateConfig,
  translateEnv,
  translateExtends,
  getPredefinedEnvironment,
  normalizePluginName,
  checkRuleSeverity,
};
test/contract.js
const assert = require("node:assert");
const { FlatCompat } = require("@eslint/eslintrc");
const {
  createCompat,
  translateConfig,
  translateEnv,
  translateExtends,
  getPredefinedEnvironment,
  normalizePluginName,
  checkRuleSeverity,
} = require("../src/index.js");

// 1. assert FlatCompat instantiates with baseDirectory and configuration presets
const compat = createCompat({
  baseDirectory: process.cwd(),
  recommendedConfig: {
    rules: {
      "no-undef": "error",
      "no-unused-vars": "error",
    },
  },
  allConfig: {
    rules: {
      semi: ["error", "always"],
    },
  },
});
assert(compat instanceof FlatCompat, "compat should be an instance of FlatCompat");

// 2. assert FlatCompat.config translates legacy eslintrc rules and settings into flat config objects
const flatConfigs = translateConfig(compat, {
  rules: {
    "no-console": "warn",
    semi: ["error", "never"],
  },
  settings: {
    framework: "node",
  },
});
assert(Array.isArray(flatConfigs), "translateConfig should return an array");
const ruleConfig = flatConfigs.find((c) => c.rules && c.rules["no-console"]);
assert(ruleConfig, "should translate rules object");
assert.strictEqual(ruleConfig.rules["no-console"], "warn");
assert.deepStrictEqual(ruleConfig.rules["semi"], ["error", "never"]);
const settingsConfig = flatConfigs.find((c) => c.settings && c.settings.framework);
assert(settingsConfig, "should translate settings object");
assert.strictEqual(settingsConfig.settings.framework, "node");

// 3. assert FlatCompat.env translates legacy env flags into languageOptions globals
const envConfigs = translateEnv(compat, {
  es2021: true,
  node: true,
});
assert(Array.isArray(envConfigs), "translateEnv should return an array");
const nodeGlobalConfig = envConfigs.find(
  (c) => c.languageOptions && c.languageOptions.globals && c.languageOptions.globals.process !== undefined
);
assert(nodeGlobalConfig, "should translate node environment to process global");
assert.strictEqual(nodeGlobalConfig.languageOptions.globals.process, false);

// 4. assert FlatCompat.extends translates recommendedConfig via extends('eslint:recommended')
const extConfigs = translateExtends(compat, "eslint:recommended");
assert(Array.isArray(extConfigs), "translateExtends should return an array");
const recRuleConfig = extConfigs.find((c) => c.rules && c.rules["no-undef"]);
assert(recRuleConfig, "should translate eslint:recommended rules");
assert.strictEqual(recRuleConfig.rules["no-undef"], "error");

// 5. assert Legacy.environments exposes predefined environment configs with builtin globals
const browserEnv = getPredefinedEnvironment("browser");
assert(browserEnv && browserEnv.globals, "browser environment should have globals defined");
assert.strictEqual(browserEnv.globals.window, false);

// 6. assert Legacy.naming normalizes plugin package names with prefixes and resolves shorthand identifiers
const normalizedPlugin = normalizePluginName("foo", "eslint-plugin");
assert.strictEqual(normalizedPlugin, "eslint-plugin-foo");

// 7. assert Legacy.ConfigOps resolves and checks rule severity values across numeric, string, and array formats
assert.strictEqual(checkRuleSeverity(["error", "always"]), 2);
assert.strictEqual(checkRuleSeverity("warn"), 1);
assert.strictEqual(checkRuleSeverity("off"), 0);

console.log("PASS: @eslint/eslintrc contract assertions verified");

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