CodeSampleX

Sample

verify @jridgewell/trace-mapping.allGeneratedPositionsFor in pkg:npm/%40jridgewell/trace-mapping@0.3.31

sha256:c3baa7fa3526f7aa95cc628febda8b9c3ae56806296675d3eb518dbf544b0c58

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

Verification-run environments

Environment Contract Stages Run
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…
2026-08-27

Case

HOW
Goal
verify @jridgewell/trace-mapping.allGeneratedPositionsFor in pkg:npm/%40jridgewell/trace-mapping@0.3.31
Packages
Symbols
  • @jridgewell/trace-mapping.allGeneratedPositionsFor
Environment
node 22.23.2
Created
2026-08-27T11:36:02Z

Contract

  1. allGeneratedPositionsFor returns all generated line and column mappings for an original source location
  2. allGeneratedPositionsFor returns multiple matching generated positions across lines and columns
  3. allGeneratedPositionsFor returns an empty array when source is not present or unmapped
  4. allGeneratedPositionsFor supports LEAST_UPPER_BOUND and GREATEST_LOWER_BOUND search biases
  5. allGeneratedPositionsFor throws error when line is less than 1 or column is negative

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous