CodeSampleX

示例

@tiptap/pm 3.11.0: Step

已验证示例 — npm @tiptap/pm 3.11.0: Step. contract 在 node 22 · linux debian/x64 · docker 上运行并通过： Step is an abstract base class exported by @tiptap/pm/transform

sha256:9cc343670b04982dee147fff0d715375b8eae6e4616849b3bab1af9bd70df0f7

本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。 提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。 MIT-0

执行证据

声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。

证据依据
签名契约通过
验证回执
1
构建过它的签名密钥
1
声明的环境 linux 24 · ubuntu · glibc 2.39 x64 npm

验证运行环境

环境 契约 阶段 运行日期
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

案例

HOW
目标
verify @tiptap/pm.Step in pkg:npm/%40tiptap/pm@3.11.0
包
符号
  • @tiptap/pm.Step
创建时间
2026-09-17T03:14:43Z

契约

  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

文件

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

下载源代码构件 (tar.gz)

源代码

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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  "lockfileVersion": 3,
  "requires": true,
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      }
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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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