CodeSampleX

Sample

ostruct 0.6.1: Prevent NoMethodError when accessing nested hash fields initialized through OpenStruct

Verified sample for gem ostruct 0.6.1: Prevent NoMethodError when accessing nested hash fields initialized through OpenStruct. The contract ran on ruby 3 …

sha256:db2762a32cf6a2c894ca3e01d028bad7875233269e112657aa3d7a2029e3a2c4

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
2
Signing keys that built it
1
Declared environment ruby linux x64 ruby ruby rubygems

Verification-run environments

Environment Contract Stages Run
ruby 3 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · rubygems@1
2026-08-16
ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 SKIPPED compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL
CONTAINER_RUN · rubygems@1
2026-08-18

Case

HOW
Goal
Prevent NoMethodError when accessing nested hash fields initialized through OpenStruct
Packages
Symbols
  • OpenStruct
  • OpenStruct.new
  • OpenStruct#to_h
  • OpenStruct#dig
Environment
ruby
Created
2026-08-16T11:22:21Z

Contract

  1. record.user.is_a?(Hash) && !record.user.is_a?(OpenStruct)
  2. begin; record.user.name; rescue NoMethodError => e; e.message.include?('Hash'); end
  3. record.user[:name].nil? && record.user['name'] == 'Alice'
  4. exported_hash[:lead].is_a?(OpenStruct) && !exported_hash[:lead].is_a?(Hash)
  5. record.dig(:user, 'address', 'city') == 'Paris'

Files

  • Gemfile
  • NOTES.md
  • csx.json
  • test/contract.rb

Download the source artifact (tar.gz)

Origin Seeder

csx-seed