CodeSampleX

Sample

@tiptap/pm 3.11.0: TextSelection

Verified sample for npm @tiptap/pm 3.11.0: TextSelection. The contract ran on node 22 · linux debian/x64 · docker and passed: TextSelection inherits from…

sha256:ee125356f266db793371bbedc0da462d1af7adf2526b31a65ee413771751d85a

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 npm

Verification-run environments

Environment Contract Stages Run
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

Case

HOW
Goal
verify @tiptap/pm.TextSelection in pkg:npm/%40tiptap/pm@3.11.0
Packages
Symbols
  • @tiptap/pm.TextSelection
Created
2026-09-17T05:24:00Z

Contract

  1. TextSelection inherits from Selection
  2. TextSelection.create creates a valid text range with anchor, head, from, and to
  3. TextSelection.create with reversed positions preserves selection direction
  4. TextSelection.create with a single position creates an empty cursor selection
  5. TextSelection.between constructs text selection between resolved positions
  6. TextSelection.content extracts the selected document slice
  7. TextSelection serializes to JSON and round-trips via Selection.fromJSON

Files

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

Download the source artifact (tar.gz)

Source

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.TextSelection 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.TextSelection

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:ff40db769e81972c285ac1eeeaaebb5654c9f7e4fdcfaef3a856f6eec35625cb","contract":["TextSelection inherits from Selection","TextSelection.create creates a valid text range with anchor, head, from, and to","TextSelection.create with reversed positions preserves selection direction","TextSelection.create with a single position creates an empty cursor selection","TextSelection.between constructs text selection between resolved positions","TextSelection.content extracts the selected document slice","TextSelection serializes to JSON and round-trips via Selection.fromJSON"],"goal":"verify @tiptap/pm.TextSelection in pkg:npm/%40tiptap/pm@3.11.0","kind":"HOW","packages":["pkg:npm/%40tiptap/pm@3.11.0"],"schemaVersion":1,"symbols":["@tiptap/pm.TextSelection"]},"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.TextSelection"],"verifierAdapter":"node-typescript@1"}
index.mjs
import { TextSelection, Selection, SelectionRange } from '@tiptap/pm/state';
import { schema } from '@tiptap/pm/schema-basic';

export { TextSelection, Selection, SelectionRange, schema };
export default TextSelection;
package-lock.json
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package.json
{
  "name": "sample-tiptap-pm-textselection",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "dependencies": {
    "@tiptap/pm": "3.11.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @tiptap/pm.TextSelection in pkg:npm/%40tiptap/pm@3.11.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40tiptap/pm@3.11.0"
  ],
  "symbols": [
    "@tiptap/pm.TextSelection"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict';
import { TextSelection, Selection, 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. TextSelection inherits from Selection
{
  assert.equal(typeof TextSelection, 'function', 'TextSelection must be a constructor function');
  assert.ok(TextSelection.prototype instanceof Selection, 'TextSelection must inherit from Selection');
  assert.equal(typeof TextSelection.create, 'function', 'TextSelection.create must be a function');
  assert.equal(typeof TextSelection.between, 'function', 'TextSelection.between must be a function');
}

// 2. TextSelection.create creates a valid text range with anchor, head, from, and to
{
  const forward = TextSelection.create(doc, 1, 6);
  assert.ok(forward instanceof TextSelection, 'create must return a TextSelection instance');
  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);
}

// 3. TextSelection.create with reversed positions preserves selection direction
{
  const forward = TextSelection.create(doc, 1, 6);
  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 have different head/anchor');
}

// 4. TextSelection.create with a single position creates an empty cursor selection
{
  const cursor = TextSelection.create(doc, 3);
  assert.equal(cursor.anchor, 3);
  assert.equal(cursor.head, 3);
  assert.equal(cursor.from, 3);
  assert.equal(cursor.to, 3);
  assert.equal(cursor.empty, true);
}

// 5. TextSelection.between constructs text selection between resolved positions
{
  const between = TextSelection.between(doc.resolve(1), doc.resolve(6));
  assert.ok(between instanceof TextSelection, 'between must return a TextSelection instance');
  assert.equal(between.anchor, 1);
  assert.equal(between.head, 6);
  assert.equal(between.from, 1);
  assert.equal(between.to, 6);
}

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

// 7. TextSelection serializes to JSON and round-trips via Selection.fromJSON
{
  const sel = TextSelection.create(doc, 1, 6);
  const json = sel.toJSON();
  assert.equal(json.type, 'text');
  assert.equal(json.anchor, 1);
  assert.equal(json.head, 6);

  const restored = Selection.fromJSON(doc, json);
  assert.ok(restored instanceof TextSelection, 'fromJSON must return TextSelection');
  assert.ok(restored.eq(sel), 'Restored selection must equal original');
}

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

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