CodeSampleX

Exemplo

@tiptap/pm 3.11.0: Selection

Amostra verificada para npm @tiptap/pm 3.11.0: Selection. O contrato rodou em node 22 · linux debian/x64 · docker e passou: Selection subclasses…

sha256:6b82804cb082d1745387920718dd73f14c05bfdff5ac1edec9d586ede4ead387

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

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.Selection in pkg:npm/%40tiptap/pm@3.11.0
Pacotes
Símbolos
  • @tiptap/pm.Selection
Ambiente
node 22.23.2
Criado
2026-09-17T02:42:47Z

Contrato

  1. Selection subclasses TextSelection, NodeSelection, and AllSelection inherit from Selection
  2. Selection.atStart and Selection.atEnd create valid empty selections at document boundaries
  3. Selection.findFrom and Selection.near locate valid text selections around given resolved positions
  4. TextSelection tracks forward and backward ranges with anchor, head, from, to, and empty properties
  5. Selection.fromJSON and toJSON serialize and restore text and all-document selections
  6. Selection.content extracts a document slice corresponding to the selected range
  7. Selection.jsonID registers custom selection classes for polymorphic JSON 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.Selection 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.Selection

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:sha256:8b134f2aa4cc140c18f55748a404192c3805a867339742cd95bc04889f1d2c50","contract":["Selection subclasses TextSelection, NodeSelection, and AllSelection inherit from Selection","Selection.atStart and Selection.atEnd create valid empty selections at document boundaries","Selection.findFrom and Selection.near locate valid text selections around given resolved positions","TextSelection tracks forward and backward ranges with anchor, head, from, to, and empty properties","Selection.fromJSON and toJSON serialize and restore text and all-document selections","Selection.content extracts a document slice corresponding to the selected range","Selection.jsonID registers custom selection classes for polymorphic JSON deserialization"],"goal":"verify @tiptap/pm.Selection in pkg:npm/%40tiptap/pm@3.11.0","kind":"HOW","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"symbols":["@tiptap/pm.Selection"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","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.Selection"],"verifierAdapter":"node-typescript@1"}
index.mjs
import { Selection, TextSelection, NodeSelection, AllSelection, SelectionRange } from '@tiptap/pm/state';
import { schema } from '@tiptap/pm/schema-basic';

export { Selection, TextSelection, NodeSelection, AllSelection, SelectionRange, schema };
export default Selection;
package-lock.json
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package.json
{
  "name": "sample-tiptap-pm-selection",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@tiptap/pm": "3.11.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @tiptap/pm.Selection in pkg:npm/%40tiptap/pm@3.11.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40tiptap/pm@3.11.0"
  ],
  "symbols": [
    "@tiptap/pm.Selection"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { Selection, TextSelection, NodeSelection, AllSelection, SelectionRange, schema } from '../index.mjs';

// Setup sample document fixture: <p>Hello world</p><p>Second paragraph</p>
const doc = schema.node('doc', null, [
  schema.node('paragraph', null, [schema.text('Hello world')]),
  schema.node('paragraph', null, [schema.text('Second paragraph')])
]);

// 1. Selection subclasses TextSelection, NodeSelection, and AllSelection inherit from Selection
{
  assert.equal(typeof Selection, 'function', 'Selection must be exported as a class');
  assert.ok(TextSelection.prototype instanceof Selection, 'TextSelection must inherit from Selection');
  assert.ok(NodeSelection.prototype instanceof Selection, 'NodeSelection must inherit from Selection');
  assert.ok(AllSelection.prototype instanceof Selection, 'AllSelection must inherit from Selection');
}

// 2. Selection.atStart and Selection.atEnd create valid empty selections at document boundaries
{
  const startSel = Selection.atStart(doc);
  assert.ok(startSel instanceof Selection, 'atStart must return a Selection instance');
  assert.equal(startSel.from, 1, 'atStart should place cursor at position 1');
  assert.equal(startSel.to, 1);
  assert.equal(startSel.empty, true, 'Boundary selection must be empty (cursor)');

  const endSel = Selection.atEnd(doc);
  assert.ok(endSel instanceof Selection, 'atEnd must return a Selection instance');
  assert.equal(endSel.from, doc.content.size - 1, 'atEnd should place cursor at end of doc content');
  assert.equal(endSel.empty, true);
}

// 3. Selection.findFrom and Selection.near locate valid text selections around given resolved positions
{
  const pos0 = doc.resolve(0);
  const foundForward = Selection.findFrom(pos0, 1);
  assert.ok(foundForward instanceof Selection, 'findFrom forward should find valid selection');
  assert.equal(foundForward.from, 1);

  const near = Selection.near(pos0, 1);
  assert.ok(near instanceof Selection, 'near should locate nearest valid selection');
  assert.equal(near.from, 1);

  const foundBackward = Selection.findFrom(doc.resolve(doc.content.size), -1);
  assert.ok(foundBackward instanceof Selection, 'findFrom backward should find valid selection');
  assert.equal(foundBackward.to, doc.content.size - 1);
}

// 4. TextSelection tracks forward and backward ranges with anchor, head, from, to, and empty properties
{
  const forward = TextSelection.create(doc, 1, 6);
  assert.equal(forward.anchor, 1);
  assert.equal(forward.head, 6);
  assert.equal(forward.from, 1);
  assert.equal(forward.to, 6);
  assert.equal(forward.empty, false);
  assert.ok(forward.ranges.length > 0);
  assert.ok(forward.ranges[0] instanceof SelectionRange);

  const backward = TextSelection.create(doc, 6, 1);
  assert.equal(backward.anchor, 6);
  assert.equal(backward.head, 1);
  assert.equal(backward.from, 1);
  assert.equal(backward.to, 6);
  assert.equal(backward.empty, false);

  assert.equal(forward.eq(backward), false, 'Forward and backward selections should not be equal due to differing head/anchor');
}

// 5. Selection.fromJSON and toJSON serialize and restore text and all-document selections
{
  const textSel = TextSelection.create(doc, 1, 6);
  const textJson = textSel.toJSON();
  assert.equal(textJson.type, 'text');
  assert.equal(textJson.anchor, 1);
  assert.equal(textJson.head, 6);

  const restoredText = Selection.fromJSON(doc, textJson);
  assert.ok(restoredText instanceof Selection);
  assert.ok(restoredText.eq(textSel), 'Restored text selection must equal original');

  const allSel = new AllSelection(doc);
  const allJson = allSel.toJSON();
  assert.equal(allJson.type, 'all');

  const restoredAll = Selection.fromJSON(doc, allJson);
  assert.ok(restoredAll instanceof AllSelection);
  assert.ok(restoredAll.eq(allSel), 'Restored all-selection must equal original');
}

// 6. Selection.content extracts a document slice corresponding to the selected range
{
  const textSel = TextSelection.create(doc, 1, 6);
  const slice = textSel.content();
  assert.ok(slice, 'content() must return a slice');
  assert.equal(slice.content.textBetween(0, slice.content.size), 'Hello');
}

// 7. Selection.jsonID registers custom selection classes for polymorphic JSON deserialization
{
  class CustomSelection extends Selection {
    constructor(resolvedPos) {
      super(resolvedPos, resolvedPos);
    }
    map(d, mapping) {
      return new CustomSelection(d.resolve(mapping.map(this.from)));
    }
    eq(other) {
      return other instanceof CustomSelection && other.from === this.from;
    }
    toJSON() {
      return { type: 'custom_selection_test', pos: this.from };
    }
    static fromJSON(d, json) {
      return new CustomSelection(d.resolve(json.pos));
    }
  }

  Selection.jsonID('custom_selection_test', CustomSelection);

  const custom = new CustomSelection(doc.resolve(3));
  const json = custom.toJSON();
  assert.equal(json.type, 'custom_selection_test');

  const restored = Selection.fromJSON(doc, json);
  assert.ok(restored instanceof CustomSelection, 'Selection.fromJSON must instantiate registered custom class');
  assert.equal(restored.from, 3);
  assert.ok(restored.eq(custom));
}

console.log('All contract assertions passed.');

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