Sample
zeitwerk 2.8.3: Release managed root directories and retained loader memory by coordinating Zeitwerk unload and unregister lifecycle calls
Verified sample for gem zeitwerk 2.8.3: Release managed root directories and retained loader memory by coordinating Zeitwerk unload and unregister lifecycle…
sha256:75407f503d18673b17265d62c127a0e8fb4349c235b2832a4d25826f1d56f9fa
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
- 2
Declared environment
ruby linux x64 ruby ruby rubygems
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-17 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-18 |
Case
HOW- Goal
- Release managed root directories and retained loader memory by coordinating Zeitwerk unload and unregister lifecycle calls
- Packages
- Symbols
-
- Zeitwerk::Loader
- Zeitwerk::Loader#unload
- Zeitwerk::Loader#unregister
- Zeitwerk::Loader.all_dirs
- Zeitwerk::Loader.for_gem
- Zeitwerk::Registry
- Zeitwerk::Error
- Environment
- ruby
- Created
- 2026-08-17T01:23:41Z
Contract
- assert calling loader.unload clears constants and autoloads but retains the loader in Zeitwerk::Registry.loaders and Zeitwerk::Loader.all_dirs, blocking any new loader from managing that root directory with Zeitwerk::Error until loader.unregister is explicitly called
- assert calling loader.unregister without calling loader.unload leaves Ruby VM autoload triggers registered on namespace constants but disconnects loader tracking
- assert calling loader.unregister removes the loader from Zeitwerk::Registry.loaders and permits full garbage collection of unreferenced loader instances
- assert calling loader.unregister on a loader created with Zeitwerk::Loader.for_gem purges the cached entry from Zeitwerk::Registry.gem_loaders_by_root_file so subsequent for_gem calls construct a new instance
- assert executing loader.unload followed by loader.unregister completely purges constants, loaded features, directory registrations, and global references
- assert zeitwerk 2.8.3 is pure Ruby with zero runtime dependencies and zero C extensions
Files
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- fixtures/app/models/post.rb
- fixtures/app/models/user.rb
- fixtures/fake_gem/lib/fake_gem.rb
- fixtures/fake_gem/lib/fake_gem/version.rb
- src/lifecycle_manager.rb
- test/contract.rb