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Beispiel

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

Verifiziertes Beispiel für npm @eslint-community/eslint-utils 4.10.1: findVariable, getFunctionNameWithKind, getInnermostScope. Der Vertrag lief auf node 22…

sha256:a41354041ed729d0fc77a8e89ffb01702e3b7c8eeca8b6ae19243675c56568c1

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Ausführungsbelege

Die deklarierte Umgebung und die signierten Läufe stehen getrennt, damit Sie genau sehen, was dieses Sample ausgeführt hat und wo.

Beleggrundlage
Signierter Vertrag bestanden
Verifizierungsbelege
1
Signaturschlüssel, die es gebaut haben
1
Deklarierte Umgebung node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm

Umgebungen der Verifizierungsläufe

Umgebung Contract Stufen Lauf
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

Fall

HOW
Ziel
verify pkg:npm/%40eslint-community/eslint-utils@4.10.1
Pakete
Symbole
  • findVariable
  • getFunctionNameWithKind
  • getInnermostScope
  • isParenthesized
Umgebung
node 22.23.2
Erstellt
2026-08-27T16:12:56Z

Contract

  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

Dateien

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

Quellartefakt herunterladen (tar.gz)

Quelltext

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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