CodeSampleX

Ejemplo

typescript 7.0.2: createTypeParameterDeclaration

Muestra verificada para npm typescript 7.0.2: createTypeParameterDeclaration. El contrato se ejecutó en node 22 · linux alpine/x64 · docker y pasó.

sha256:e9924d2c9c2fd7bfe74953c390514eb52680c4ec847103188f2f3408a8b7c858

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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…		 2026-08-28

Caso

HOW
Objetivo
verify typescript.createTypeParameterDeclaration in pkg:npm/typescript@7.0.2
Paquetes
Símbolos
  • typescript.createTypeParameterDeclaration
Entorno
node 22.23.2
Creado
2026-08-28T07:40:37Z

Contrato

  1. typescript/unstable/ast/factory exports createTypeParameterDeclaration and updateTypeParameterDeclaration
  2. createTypeParameterDeclaration constructs a basic TypeParameterDeclaration AST node
  3. createTypeParameterDeclaration constructs constrained type parameters with extends clause and default types
  4. createTypeParameterDeclaration supports variance and const modifiers
  5. updateTypeParameterDeclaration preserves identity when unchanged and creates updated node when changed
  6. inspectTypeParameterDeclaration extracts structural metadata and rejects invalid inputs

Archivos

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

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 typescript.createTypeParameterDeclaration in pkg:npm/typescript@7.0.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/typescript@7.0.2
Demonstrate these symbols/APIs:
  - typescript.createTypeParameterDeclaration

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:sha256:0c202ec1cc42e1394093e5cc575e50bf1baa0150b53da858a8a75480aa38885c","contract":["typescript/unstable/ast/factory exports createTypeParameterDeclaration and updateTypeParameterDeclaration","createTypeParameterDeclaration constructs a basic TypeParameterDeclaration AST node","createTypeParameterDeclaration constructs constrained type parameters with extends clause and default types","createTypeParameterDeclaration supports variance and const modifiers","updateTypeParameterDeclaration preserves identity when unchanged and creates updated node when changed","inspectTypeParameterDeclaration extracts structural metadata and rejects invalid inputs"],"goal":"verify typescript.createTypeParameterDeclaration in pkg:npm/typescript@7.0.2","kind":"HOW","packages":["pkg:npm/typescript@7.0.2"],"schemaVersion":1,"symbols":["typescript.createTypeParameterDeclaration"]},"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","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/typescript@7.0.2"],"schemaVersion":1,"subject":"pkg:npm/typescript@7.0.2","symbols":["typescript.createTypeParameterDeclaration"],"verifierAdapter":"node-typescript@1"}
index.js
const {
  createTypeParameterDeclaration,
  updateTypeParameterDeclaration,
  createIdentifier,
  createToken,
  createTypeReferenceNode
} = require('typescript/unstable/ast/factory');

const {
  SyntaxKind,
  isTypeParameterDeclaration,
  isIdentifier,
  isTypeReferenceNode,
  isToken,
  formatSyntaxKind
} = require('typescript/unstable/ast');

/**
 * Builds a basic TypeParameterDeclaration AST node.
 *
 * @param {string | object} name - Identifier name or node.
 * @param {object} [options={}] - Optional configuration.
 * @param {object} [options.constraint] - Constraint TypeNode (e.g. extends T).
 * @param {object} [options.defaultType] - Default TypeNode (e.g. = T).
 * @param {Array<object>} [options.modifiers] - Modifier tokens (e.g. const, in, out).
 * @returns {object} TypeParameterDeclaration AST node.
 */
function buildTypeParameter(name, options = {}) {
  const nameNode = typeof name === 'string' ? createIdentifier(name) : name;
  const constraintNode = typeof options.constraint === 'string'
    ? createTypeReferenceNode(createIdentifier(options.constraint), undefined)
    : options.constraint;
  const defaultNode = typeof options.defaultType === 'string'
    ? createTypeReferenceNode(createIdentifier(options.defaultType), undefined)
    : options.defaultType;
  const modifiers = Array.isArray(options.modifiers) && options.modifiers.length > 0
    ? options.modifiers
    : undefined;

  return createTypeParameterDeclaration(
    modifiers,
    nameNode,
    constraintNode,
    undefined,
    defaultNode
  );
}

/**
 * Builds a constrained TypeParameterDeclaration AST node with extends constraint and default type.
 *
 * @param {string | object} name - Type parameter name.
 * @param {string | object} constraint - Type name or node for extends constraint.
 * @param {string | object} [defaultType] - Type name or node for default type.
 * @returns {object} TypeParameterDeclaration AST node.
 */
function buildConstrainedTypeParameter(name, constraint, defaultType) {
  return buildTypeParameter(name, { constraint, defaultType });
}

/**
 * Inspects a TypeParameterDeclaration node and extracts structural metadata.
 *
 * @param {object} node - AST node to inspect.
 * @returns {{
 *   kind: number,
 *   kindName: string,
 *   isTypeParameterDeclaration: boolean,
 *   name: string,
 *   hasConstraint: boolean,
 *   hasDefaultType: boolean,
 *   modifierKinds: Array<number>
 * }}
 */
function inspectTypeParameterDeclaration(node) {
  if (!node || typeof node !== 'object') {
    throw new TypeError('Expected an AST node object');
  }

  const isTypeParam = isTypeParameterDeclaration(node);
  if (!isTypeParam) {
    return {
      kind: node.kind,
      kindName: formatSyntaxKind ? formatSyntaxKind(node.kind) : String(node.kind),
      isTypeParameterDeclaration: false,
      name: '',
      hasConstraint: false,
      hasDefaultType: false,
      modifierKinds: []
    };
  }

  const rawName = node.name ? (node.name.text ?? node.name._data?.text ?? '') : '';
  const modifierKinds = Array.isArray(node.modifiers) ? node.modifiers.map(m => m.kind) : [];

  return {
    kind: node.kind,
    kindName: formatSyntaxKind ? formatSyntaxKind(node.kind) : 'TypeParameter',
    isTypeParameterDeclaration: true,
    name: rawName,
    hasConstraint: node.constraint !== undefined,
    hasDefaultType: node.defaultType !== undefined,
    modifierKinds
  };
}

module.exports = {
  buildTypeParameter,
  buildConstrainedTypeParameter,
  inspectTypeParameterDeclaration,
  createTypeParameterDeclaration,
  updateTypeParameterDeclaration,
  createIdentifier,
  createToken,
  createTypeReferenceNode,
  SyntaxKind,
  isTypeParameterDeclaration,
  isIdentifier,
  isTypeReferenceNode,
  isToken,
  formatSyntaxKind
};
package-lock.json
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        "@typescript/typescript-linux-riscv64": "7.0.2",
        "@typescript/typescript-linux-s390x": "7.0.2",
        "@typescript/typescript-linux-x64": "7.0.2",
        "@typescript/typescript-netbsd-arm64": "7.0.2",
        "@typescript/typescript-netbsd-x64": "7.0.2",
        "@typescript/typescript-openbsd-arm64": "7.0.2",
        "@typescript/typescript-openbsd-x64": "7.0.2",
        "@typescript/typescript-sunos-x64": "7.0.2",
        "@typescript/typescript-win32-arm64": "7.0.2",
        "@typescript/typescript-win32-x64": "7.0.2"
      }
    }
  }
}
package.json
{
  "name": "sample-typescript-create-type-parameter-declaration",
  "version": "1.0.0",
  "private": true,
  "description": "verify typescript.createTypeParameterDeclaration in pkg:npm/typescript@7.0.2",
  "main": "index.js",
  "scripts": {
    "test": "node test/contract.js"
  },
  "dependencies": {
    "typescript": "7.0.2"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify typescript.createTypeParameterDeclaration in pkg:npm/typescript@7.0.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/typescript@7.0.2"
  ],
  "symbols": [
    "typescript.createTypeParameterDeclaration"
  ]
}
test/contract.js
const assert = require('node:assert/strict');
const {
  buildTypeParameter,
  buildConstrainedTypeParameter,
  inspectTypeParameterDeclaration,
  createTypeParameterDeclaration,
  updateTypeParameterDeclaration,
  createIdentifier,
  createToken,
  createTypeReferenceNode,
  SyntaxKind,
  isTypeParameterDeclaration,
  isIdentifier,
  isTypeReferenceNode,
  formatSyntaxKind
} = require('../index.js');

// Contract 1: typescript/unstable/ast/factory exports createTypeParameterDeclaration and updateTypeParameterDeclaration
{
  assert.strictEqual(typeof createTypeParameterDeclaration, 'function');
  assert.strictEqual(typeof updateTypeParameterDeclaration, 'function');
  assert.strictEqual(typeof isTypeParameterDeclaration, 'function');
}

// Contract 2: createTypeParameterDeclaration constructs a basic TypeParameterDeclaration AST node
{
  const idT = createIdentifier('T');
  const tp = createTypeParameterDeclaration(undefined, idT);

  assert.ok(tp, 'TypeParameter node should be created');
  assert.strictEqual(isTypeParameterDeclaration(tp), true, 'isTypeParameterDeclaration should return true');
  assert.strictEqual(tp.kind, SyntaxKind.TypeParameter, 'Node kind should be SyntaxKind.TypeParameter');
  assert.strictEqual(formatSyntaxKind(tp.kind), 'TypeParameter', 'formatSyntaxKind should return TypeParameter');
  assert.strictEqual(tp.name.text, 'T', 'Name text should be T');
  assert.strictEqual(tp.constraint, undefined, 'Constraint should be undefined');
  assert.strictEqual(tp.defaultType, undefined, 'DefaultType should be undefined');
}

// Contract 3: createTypeParameterDeclaration constructs constrained type parameters with extends clause and default types
{
  const constraintNode = createTypeReferenceNode(createIdentifier('Comparable'), undefined);
  const defaultNode = createTypeReferenceNode(createIdentifier('string'), undefined);
  const tp = createTypeParameterDeclaration(
    undefined,
    createIdentifier('Item'),
    constraintNode,
    undefined,
    defaultNode
  );

  assert.strictEqual(isTypeParameterDeclaration(tp), true);
  assert.strictEqual(tp.name.text, 'Item');
  assert.strictEqual(isTypeReferenceNode(tp.constraint), true);
  assert.strictEqual(tp.constraint.typeName.text, 'Comparable');
  assert.strictEqual(isTypeReferenceNode(tp.defaultType), true);
  assert.strictEqual(tp.defaultType.typeName.text, 'string');
}

// Contract 4: createTypeParameterDeclaration supports variance and const modifiers
{
  const inModifier = createToken(SyntaxKind.InKeyword);
  const constModifier = createToken(SyntaxKind.ConstKeyword);
  const tp = createTypeParameterDeclaration(
    [constModifier, inModifier],
    createIdentifier('Input')
  );

  assert.strictEqual(isTypeParameterDeclaration(tp), true);
  assert.ok(Array.isArray(tp.modifiers));
  assert.strictEqual(tp.modifiers.length, 2);
  assert.strictEqual(tp.modifiers[0].kind, SyntaxKind.ConstKeyword);
  assert.strictEqual(tp.modifiers[1].kind, SyntaxKind.InKeyword);
}

// Contract 5: updateTypeParameterDeclaration preserves identity when unchanged and creates updated node when changed
{
  const idK = createIdentifier('K');
  const original = createTypeParameterDeclaration(undefined, idK);
  const identical = updateTypeParameterDeclaration(original, undefined, idK, undefined, undefined, undefined);
  assert.strictEqual(identical, original, 'update with identical properties should return original instance');

  const newName = createIdentifier('V');
  const updated = updateTypeParameterDeclaration(original, undefined, newName, undefined, undefined, undefined);
  assert.notStrictEqual(updated, original, 'update with changed properties should return new instance');
  assert.strictEqual(updated.name.text, 'V');
  assert.strictEqual(isTypeParameterDeclaration(updated), true);
}

// Contract 6: inspectTypeParameterDeclaration extracts structural metadata and rejects invalid inputs
{
  const tp = buildConstrainedTypeParameter('Entity', 'BaseEntity', 'DefaultEntity');
  const info = inspectTypeParameterDeclaration(tp);

  assert.strictEqual(info.isTypeParameterDeclaration, true);
  assert.strictEqual(info.kindName, 'TypeParameter');
  assert.strictEqual(info.name, 'Entity');
  assert.strictEqual(info.hasConstraint, true);
  assert.strictEqual(info.hasDefaultType, true);
  assert.deepStrictEqual(info.modifierKinds, []);

  assert.throws(
    () => inspectTypeParameterDeclaration(null),
    { name: 'TypeError' },
    'inspectTypeParameterDeclaration should throw TypeError on non-object'
  );
}

console.log('All typescript.createTypeParameterDeclaration contracts passed successfully.');

Seeder de origen

anónimo