CodeSampleX

Ejemplo

@babel/core 7.29.7: createConfigItem

Muestra verificada para npm @babel/core 7.29.7: createConfigItem. El contrato se ejecutó en node 22 · linux alpine/x64 · docker y pasó.

sha256:49f4b276e74408d15927463e478b626d43e53681ddbc74249c6433bc6c5eb4bd

Esta red ofrece una sola cosa: una muestra que compila. La ejecutó en un sandbox y guardó el recibo firmado. No califica ni garantiza nada: si el mismo código compila donde estás no es algo que haya medido. Cuántas claves de firma distintas presentaron un recibo de contrato aprobado. Una es solo el autor; más de una significa que alguien más también lo compiló. Una clave se genera sola y no tiene identidad registrada detrás, así que cuenta claves, no personas. MIT-0

Evidencia de ejecución

El entorno declarado y las ejecuciones firmadas se muestran por separado, para que veas exactamente qué ejecutó esta muestra y dónde.

Base de evidencia
Contrato firmado aprobado
Recibos de verificación
1
Claves de firma que lo compilaron
1
Entorno declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Entornos de las ejecuciones de verificación

Entorno Contrato Etapas Ejecución
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…		 2026-08-23

Caso

HOW
Objetivo
verify @babel/core.createConfigItem in pkg:npm/%40babel/core@7.29.7
Paquetes
Símbolos
  • @babel/core.createConfigItem
Creado
2026-08-23T06:40:01Z

Contrato

  1. assert babel.createConfigItem wraps a plugin function returning a ConfigItem instance with options and dirname
  2. assert transformSync transforms code using a ConfigItem plugin in options.plugins
  3. assert babel.createConfigItem with type preset wraps a preset function returning a ConfigItem instance
  4. assert transformSync transforms code using a ConfigItem preset in options.presets
  5. assert babel.createConfigItem defaults type to plugin when omitted

Archivos

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

Descargar el artefacto de código fuente (tar.gz)

Código fuente

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 @babel/core.createConfigItem in pkg:npm/%40babel/core@7.29.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/core@7.29.7
Demonstrate these symbols/APIs:
  - @babel/core.createConfigItem

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:fd7fb8756c543ee33ee8933ef69238112f40533118615e0ff3e7f23173d136bf","contract":["assert babel.createConfigItem wraps a plugin function returning a ConfigItem instance with options and dirname","assert transformSync transforms code using a ConfigItem plugin in options.plugins","assert babel.createConfigItem with type preset wraps a preset function returning a ConfigItem instance","assert transformSync transforms code using a ConfigItem preset in options.presets","assert babel.createConfigItem defaults type to plugin when omitted"],"goal":"verify @babel/core.createConfigItem in pkg:npm/%40babel/core@7.29.7","kind":"HOW","packages":["pkg:npm/%40babel/core@7.29.7"],"schemaVersion":1,"symbols":["@babel/core.createConfigItem"]},"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/core@7.29.7"],"schemaVersion":1,"subject":"pkg:npm/%40babel/core@7.29.7","symbols":["@babel/core.createConfigItem"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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  "name": "sample-babel-create-config-item",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-babel-create-config-item",
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      }
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        "js-tokens": "^4.0.0",
        "picocolors": "^1.1.1"
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package.json
{
  "name": "sample-babel-create-config-item",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "dependencies": {
    "@babel/core": "7.29.7"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @babel/core.createConfigItem in pkg:npm/%40babel/core@7.29.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/core@7.29.7"
  ],
  "symbols": [
    "@babel/core.createConfigItem"
  ]
}
test/contract.mjs
import assert from "node:assert/strict";
import babel from "@babel/core";

// 1. Basic plugin creation with createConfigItem
const renamePlugin = function(api, options) {
  return {
    visitor: {
      Identifier(path) {
        if (options && options.from && path.node.name === options.from) {
          path.node.name = options.to;
        }
      }
    }
  };
};

const pluginItem = babel.createConfigItem([renamePlugin, { from: "alpha", to: "beta" }], {
  type: "plugin"
});

assert.equal(typeof babel.createConfigItem, "function");
assert.equal(pluginItem.constructor.name, "ConfigItem");
assert.equal(pluginItem.value, renamePlugin);
assert.deepEqual(pluginItem.options, { from: "alpha", to: "beta" });
assert.equal(typeof pluginItem.dirname, "string");

// 2. Transforming code with ConfigItem plugin
const pluginResult = babel.transformSync("const alpha = 10;", {
  plugins: [pluginItem],
  configFile: false,
  babelrc: false
});

assert.ok(pluginResult);
assert.equal(pluginResult.code, "const beta = 10;");

// 3. Preset creation with createConfigItem
const customPreset = function(api, opts) {
  return {
    plugins: [
      [renamePlugin, { from: "original", to: "transformed" }]
    ]
  };
};

const presetItem = babel.createConfigItem(customPreset, {
  type: "preset"
});

assert.equal(presetItem.constructor.name, "ConfigItem");
assert.equal(presetItem.value, customPreset);

// 4. Transforming code with ConfigItem preset
const presetResult = babel.transformSync("const original = true;", {
  presets: [presetItem],
  configFile: false,
  babelrc: false
});

assert.ok(presetResult);
assert.equal(presetResult.code, "const transformed = true;");

// 5. Default type is plugin when omitted
const defaultTypeItem = babel.createConfigItem(renamePlugin);
assert.equal(defaultTypeItem.constructor.name, "ConfigItem");
assert.equal(defaultTypeItem.value, renamePlugin);

Seeder de origen

anónimo