CodeSampleX

Exemplo

@tiptap/pm 3.11.0: Step

Amostra verificada para npm @tiptap/pm 3.11.0: Step. O contrato rodou em node 22 · linux debian/x64 · docker e passou: Step is an abstract base class…

sha256:9cc343670b04982dee147fff0d715375b8eae6e4616849b3bab1af9bd70df0f7

Esta rede oferece uma coisa: uma amostra que compila. Ela a executou em um sandbox e guardou o recibo assinado. Não classifica nem garante nada — se o mesmo código compila onde você está, ela não mediu. Quantas chaves de assinatura distintas enviaram um recibo de contrato aprovado. Uma é só o autor; mais de uma significa que outra pessoa também o compilou. Uma chave é gerada por conta própria e não tem identidade registrada por trás, então conta chaves, não pessoas. MIT-0

Evidência de execução

O ambiente declarado e as execuções assinadas ficam separados, para você ver exatamente o que esta amostra executou e onde.

Base da evidência
Contrato assinado aprovado
Recibos de verificação
1
Chaves de assinatura que o compilaram
1
Ambiente declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Ambientes das execuções de verificação

Ambiente Contrato Etapas Execução
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…		 2026-09-17

Caso

HOW
Objetivo
verify @tiptap/pm.Step in pkg:npm/%40tiptap/pm@3.11.0
Pacotes
Símbolos
  • @tiptap/pm.Step
Criado
2026-09-17T03:14:43Z

Contrato

  1. Step is an abstract base class exported by @tiptap/pm/transform
  2. Transform produces Step instances during document modification
  3. step.apply applies document changes and returns a StepResult
  4. step.getMap returns a StepMap that maps positions before and after the step
  5. step.invert generates an inverse Step that reverts changes on the transformed document
  6. step.map remaps step boundaries through an external StepMap
  7. step.merge combines adjacent replacement steps into a single Step
  8. step.toJSON serializes the step and Step.fromJSON reconstructs it
  9. Step.jsonID registers custom Step subclasses for JSON serialization and deserialization

Arquivos

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

Baixar o artefato de código-fonte (tar.gz)

Código-fonte

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 @tiptap/pm.Step in pkg:npm/%40tiptap/pm@3.11.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40tiptap/pm@3.11.0
Demonstrate these symbols/APIs:
  - @tiptap/pm.Step

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:sha256:38ff2e04ea3ff237995245562aa860321a191c66c3e4362ea4218ba277198bf6","contract":["Step is an abstract base class exported by @tiptap/pm/transform","Transform produces Step instances during document modification","step.apply applies document changes and returns a StepResult","step.getMap returns a StepMap that maps positions before and after the step","step.invert generates an inverse Step that reverts changes on the transformed document","step.map remaps step boundaries through an external StepMap","step.merge combines adjacent replacement steps into a single Step","step.toJSON serializes the step and Step.fromJSON reconstructs it","Step.jsonID registers custom Step subclasses for JSON serialization and deserialization"],"goal":"verify @tiptap/pm.Step in pkg:npm/%40tiptap/pm@3.11.0","kind":"HOW","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"symbols":["@tiptap/pm.Step"]},"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/%40tiptap/pm@3.11.0"],"schemaVersion":1,"subject":"pkg:npm/%40tiptap/pm@3.11.0","symbols":["@tiptap/pm.Step"],"verifierAdapter":"node-typescript@1"}
index.mjs
import {
  Step,
  StepResult,
  ReplaceStep,
  ReplaceAroundStep,
  AddMarkStep,
  RemoveMarkStep,
  Transform,
  StepMap,
  Mapping,
} from '@tiptap/pm/transform';
import { schema } from '@tiptap/pm/schema-basic';
import { Node, Slice, Fragment } from '@tiptap/pm/model';

export {
  Step,
  StepResult,
  ReplaceStep,
  ReplaceAroundStep,
  AddMarkStep,
  RemoveMarkStep,
  Transform,
  StepMap,
  Mapping,
  schema,
  Node,
  Slice,
  Fragment,
};
export default Step;
package-lock.json
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package.json
{
  "name": "sample-tiptap-pm-step",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@tiptap/pm": "3.11.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @tiptap/pm.Step in pkg:npm/%40tiptap/pm@3.11.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40tiptap/pm@3.11.0"
  ],
  "symbols": [
    "@tiptap/pm.Step"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import {
  Step,
  StepResult,
  ReplaceStep,
  AddMarkStep,
  RemoveMarkStep,
  Transform,
  StepMap,
  schema,
  Slice,
  Fragment,
} from '../index.mjs';

function createDoc(text = 'Hello world') {
  return schema.node('doc', null, [
    schema.node('paragraph', null, [schema.text(text)]),
  ]);
}

// 1. Step is an abstract base class exported by @tiptap/pm/transform
{
  assert.equal(typeof Step, 'function');
  assert.equal(typeof Step.fromJSON, 'function');
  assert.equal(typeof Step.jsonID, 'function');
  assert.ok(Object.prototype.isPrototypeOf.call(Step, ReplaceStep));
  assert.ok(Object.prototype.isPrototypeOf.call(Step, AddMarkStep));
  assert.ok(Object.prototype.isPrototypeOf.call(Step, RemoveMarkStep));
}

// 2. Transform produces Step instances during document modification
{
  const doc = createDoc('Hello world');
  const tr = new Transform(doc);
  tr.insert(6, schema.text(' beautiful'));
  assert.equal(tr.steps.length, 1);
  const step = tr.steps[0];
  assert.ok(step instanceof Step);
  assert.ok(step instanceof ReplaceStep);
}

// 3. step.apply applies document changes and returns a StepResult
{
  const doc = createDoc('Hello world');
  const slice = new Slice(Fragment.from(schema.text(' beautiful')), 0, 0);
  const step = new ReplaceStep(6, 6, slice);
  const result = step.apply(doc);
  assert.ok(result instanceof StepResult);
  assert.equal(result.failed, null);
  assert.ok(result.doc !== null);
  assert.equal(result.doc.textContent, 'Hello beautiful world');
}

// 4. step.getMap returns a StepMap that maps positions before and after the step
{
  const slice = new Slice(Fragment.from(schema.text(' beautiful')), 0, 0);
  const step = new ReplaceStep(6, 6, slice);
  const map = step.getMap();
  assert.ok(map instanceof StepMap);
  assert.equal(map.map(6), 16);
  assert.equal(map.map(1), 1);
}

// 5. step.invert generates an inverse Step that reverts changes on the transformed document
{
  const doc = createDoc('Hello world');
  const slice = new Slice(Fragment.from(schema.text(' beautiful')), 0, 0);
  const step = new ReplaceStep(6, 6, slice);
  const result = step.apply(doc);
  assert.equal(result.doc.textContent, 'Hello beautiful world');

  const inverted = step.invert(doc);
  assert.ok(inverted instanceof Step);
  const invertedResult = inverted.apply(result.doc);
  assert.equal(invertedResult.doc.textContent, 'Hello world');
}

// 6. step.map remaps step boundaries through an external StepMap
{
  const slice = new Slice(Fragment.from(schema.text('world')), 0, 0);
  const step = new ReplaceStep(5, 10, slice);
  const stepMap = new StepMap([0, 0, 10]);
  const mappedStep = step.map(stepMap);
  assert.ok(mappedStep instanceof Step);
  assert.equal(mappedStep.from, 15);
  assert.equal(mappedStep.to, 20);
}

// 7. step.merge combines adjacent replacement steps into a single Step
{
  const slice1 = new Slice(Fragment.from(schema.text('foo')), 0, 0);
  const step1 = new ReplaceStep(1, 1, slice1);
  const slice2 = new Slice(Fragment.from(schema.text('bar')), 0, 0);
  const step2 = new ReplaceStep(4, 4, slice2);
  const merged = step1.merge(step2);
  assert.ok(merged !== null);
  assert.ok(merged instanceof Step);
  assert.ok(merged instanceof ReplaceStep);
}

// 8. step.toJSON serializes the step and Step.fromJSON reconstructs it
{
  const slice = new Slice(Fragment.from(schema.text('test')), 0, 0);
  const step = new ReplaceStep(2, 4, slice);
  const json = step.toJSON();
  assert.equal(json.stepType, 'replace');
  assert.equal(json.from, 2);
  assert.equal(json.to, 4);

  const restored = Step.fromJSON(schema, json);
  assert.ok(restored instanceof Step);
  assert.ok(restored instanceof ReplaceStep);
  assert.equal(restored.from, 2);
  assert.equal(restored.to, 4);
}

// 9. Step.jsonID registers custom Step subclasses for JSON serialization and deserialization
{
  class CustomTestStep extends Step {
    constructor(val = 'test') {
      super();
      this.val = val;
    }
    apply(doc) {
      return StepResult.ok(doc);
    }
    getMap() {
      return StepMap.empty;
    }
    invert(doc) {
      return this;
    }
    map(mapping) {
      return this;
    }
    toJSON() {
      return { stepType: 'custom_test_step', val: this.val };
    }
    static fromJSON(schema, json) {
      return new CustomTestStep(json.val);
    }
  }

  Step.jsonID('custom_test_step', CustomTestStep);
  const custom = new CustomTestStep('hello-custom');
  const serialized = custom.toJSON();
  assert.equal(serialized.stepType, 'custom_test_step');
  assert.equal(serialized.val, 'hello-custom');

  const deserialized = Step.fromJSON(schema, serialized);
  assert.ok(deserialized instanceof CustomTestStep);
  assert.equal(deserialized.val, 'hello-custom');
}

console.log('All contracts passed.');

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