CodeSampleX

Exemple

@eslint-community/eslint-utils 4.10.1: findVariable, getFunctionNameWithKind, getInnermostScope

Échantillon vérifié pour npm @eslint-community/eslint-utils 4.10.1: findVariable, getFunctionNameWithKind, getInnermostScope. Le contrat s'est exécuté sur…

sha256:a41354041ed729d0fc77a8e89ffb01702e3b7c8eeca8b6ae19243675c56568c1

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript 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…		 2026-08-27

Cas

HOW
Objectif
verify pkg:npm/%40eslint-community/eslint-utils@4.10.1
Paquets
Symboles
  • findVariable
  • getFunctionNameWithKind
  • getInnermostScope
  • isParenthesized
Environnement
node 22.23.2
Créé
2026-08-27T16:12:56Z

Contrat

  1. findVariable traverses the scope chain upwards to find a variable declaration by name or AST identifier node
  2. getFunctionNameWithKind returns the formatted kind and name of function, method, or arrow function AST nodes
  3. getInnermostScope locates the most deeply nested child scope covering the range of a target AST node
  4. isParenthesized verifies if an AST node is wrapped in one or more pairs of parentheses, throwing TypeError for non-positive repetition counts

Fichiers

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • 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 pkg:npm/%40eslint-community/eslint-utils@4.10.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40eslint-community/eslint-utils@4.10.1
Demonstrate these symbols/APIs:
  - findVariable
  - getFunctionNameWithKind
  - getInnermostScope
  - isParenthesized

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:e2e74ebda892ec1be577c8ea13ddab0c587259983ce82f67ac4681ffe4c34f87","contract":["findVariable traverses the scope chain upwards to find a variable declaration by name or AST identifier node","getFunctionNameWithKind returns the formatted kind and name of function, method, or arrow function AST nodes","getInnermostScope locates the most deeply nested child scope covering the range of a target AST node","isParenthesized verifies if an AST node is wrapped in one or more pairs of parentheses, throwing TypeError for non-positive repetition counts"],"goal":"verify pkg:npm/%40eslint-community/eslint-utils@4.10.1","kind":"HOW","packages":["pkg:npm/%40eslint-community/eslint-utils@4.10.1"],"schemaVersion":1,"symbols":["findVariable","getFunctionNameWithKind","getInnermostScope","isParenthesized"]},"contractCommand":["node","test/contract.mjs"],"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-community/eslint-utils@4.10.1"],"schemaVersion":1,"subject":"pkg:npm/%40eslint-community/eslint-utils@4.10.1","symbols":["findVariable","getFunctionNameWithKind","getInnermostScope","isParenthesized"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
      "license": "ISC",
      "peer": true,
      "dependencies": {
        "isexe": "^2.0.0"
      },
      "bin": {
        "node-which": "bin/node-which"
      },
      "engines": {
        "node": ">= 8"
      }
    },
    "node_modules/word-wrap": {
      "version": "1.2.5",
      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
      "integrity": "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==",
      "license": "MIT",
      "peer": true,
      "engines": {
        "node": ">=0.10.0"
      }
    },
    "node_modules/yocto-queue": {
      "version": "0.1.0",
      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
      "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
      "license": "MIT",
      "peer": true,
      "engines": {
        "node": ">=10"
      },
      "funding": {
        "url": "https://github.com/sponsors/sindresorhus"
      }
    }
  }
}
package.json
{
  "name": "sample-eslint-utils",
  "version": "1.0.0",
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@eslint-community/eslint-utils": "4.10.1"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40eslint-community/eslint-utils@4.10.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40eslint-community/eslint-utils@4.10.1"
  ],
  "symbols": [
    "findVariable",
    "getFunctionNameWithKind",
    "getInnermostScope",
    "isParenthesized"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);
const {
  findVariable,
  getFunctionNameWithKind,
  getInnermostScope,
  isParenthesized
} = require('@eslint-community/eslint-utils');

// 1. findVariable traverses the scope chain upwards to find a variable declaration by name or AST identifier node
{
  const globalVar = { name: 'globalVar' };
  const localVar = { name: 'localVar' };

  const globalScope = {
    set: new Map([['globalVar', globalVar]]),
    upper: null,
    childScopes: []
  };

  const innerScope = {
    set: new Map([['localVar', localVar]]),
    upper: globalScope,
    childScopes: [],
    block: { range: [10, 30] }
  };
  globalScope.childScopes.push(innerScope);

  assert.equal(findVariable(globalScope, 'globalVar'), globalVar);
  assert.equal(findVariable(innerScope, 'globalVar'), globalVar);
  assert.equal(findVariable(innerScope, 'localVar'), localVar);
  assert.equal(findVariable(globalScope, 'localVar'), null);
  assert.equal(findVariable(globalScope, 'nonExistent'), null);

  const identNode = { type: 'Identifier', name: 'localVar', range: [15, 23] };
  assert.equal(findVariable(globalScope, identNode), localVar);
}

// 2. getFunctionNameWithKind returns the formatted kind and name of function, method, or arrow function AST nodes
{
  const unparentedFunc = { type: 'FunctionDeclaration', id: { name: 'orphan' } };
  assert.equal(getFunctionNameWithKind(unparentedFunc), '');

  const funcDecl = {
    type: 'FunctionDeclaration',
    id: { name: 'calculateTotal' },
    async: false,
    generator: false
  };
  funcDecl.parent = { type: 'Program' };
  assert.equal(getFunctionNameWithKind(funcDecl), "function 'calculateTotal'");

  const arrowFunc = {
    type: 'ArrowFunctionExpression',
    async: true,
    generator: false
  };
  arrowFunc.parent = {
    type: 'VariableDeclarator',
    id: { type: 'Identifier', name: 'fetchData' }
  };
  assert.equal(getFunctionNameWithKind(arrowFunc), "async arrow function 'fetchData'");

  const methodNode = {
    type: 'FunctionExpression',
    async: true,
    generator: true
  };
  methodNode.parent = {
    type: 'MethodDefinition',
    key: { type: 'Identifier', name: 'streamItems' },
    value: methodNode,
    kind: 'method',
    static: true,
    computed: false
  };
  assert.equal(getFunctionNameWithKind(methodNode), "static async generator method 'streamItems'");

  const ctorNode = {
    type: 'FunctionExpression',
    async: false,
    generator: false
  };
  ctorNode.parent = {
    type: 'MethodDefinition',
    key: { type: 'Identifier', name: 'constructor' },
    value: ctorNode,
    kind: 'constructor',
    static: false,
    computed: false
  };
  assert.equal(getFunctionNameWithKind(ctorNode), 'constructor');
}

// 3. getInnermostScope locates the most deeply nested child scope covering the range of a target AST node
{
  const innermost = {
    block: { range: [20, 30] },
    childScopes: []
  };
  const middle = {
    block: { range: [10, 40] },
    childScopes: [innermost]
  };
  const root = {
    block: { range: [0, 100] },
    childScopes: [middle]
  };

  const insideInnermost = { range: [25, 28] };
  assert.equal(getInnermostScope(root, insideInnermost), innermost);

  const insideMiddleOnly = { range: [35, 38] };
  assert.equal(getInnermostScope(root, insideMiddleOnly), middle);

  const insideRootOnly = { range: [50, 60] };
  assert.equal(getInnermostScope(root, insideRootOnly), root);
}

// 4. isParenthesized verifies if an AST node is wrapped in one or more pairs of parentheses, throwing TypeError for non-positive repetition counts
{
  const targetNode = {
    type: 'Identifier',
    name: 'foo',
    parent: { type: 'ExpressionStatement' }
  };

  const lParen1 = { type: 'Punctuator', value: '(' };
  const rParen1 = { type: 'Punctuator', value: ')' };
  const lParen2 = { type: 'Punctuator', value: '(' };
  const rParen2 = { type: 'Punctuator', value: ')' };

  const singleParenSourceCode = {
    getTokenBefore(n) {
      if (n === targetNode) return lParen1;
      return null;
    },
    getTokenAfter(n) {
      if (n === targetNode) return rParen1;
      return null;
    }
  };

  assert.equal(isParenthesized(targetNode, singleParenSourceCode), true);
  assert.equal(isParenthesized(1, targetNode, singleParenSourceCode), true);
  assert.equal(isParenthesized(2, targetNode, singleParenSourceCode), false);

  const doubleParenSourceCode = {
    getTokenBefore(n) {
      if (n === targetNode) return lParen1;
      if (n === lParen1) return lParen2;
      return null;
    },
    getTokenAfter(n) {
      if (n === targetNode) return rParen1;
      if (n === rParen1) return rParen2;
      return null;
    }
  };

  assert.equal(isParenthesized(2, targetNode, doubleParenSourceCode), true);

  const noParenSourceCode = {
    getTokenBefore() { return null; },
    getTokenAfter() { return null; }
  };
  assert.equal(isParenthesized(targetNode, noParenSourceCode), false);

  assert.throws(
    () => isParenthesized(0, targetNode, singleParenSourceCode),
    TypeError
  );
}

console.log('Contract assertions passed.');

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