Sample
csv 3.3.2: Manage IO stream lifecycles across CSV.parse, CSV.open, and CSV.foreach without leaking file descriptors or unexpectedly closing caller-provided streams
Verified sample for gem csv 3.3.2: Manage IO stream lifecycles across CSV.parse, CSV.open, and CSV.foreach without leaking file descriptors or unexpectedly…
sha256:edd5a422fdf1a293895676dbfc3780c9167d99635c44e346f092f97a384c0edf
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
- Manage IO stream lifecycles across CSV.parse, CSV.open, and CSV.foreach without leaking file descriptors or unexpectedly closing caller-provided streams
- Packages
- Symbols
-
- CSV.parse
- CSV.open
- CSV.foreach
- CSV.generate
- CSV#close
- Environment
- ruby
- Created
- 2026-08-16T15:31:31Z
Contract
- CSV.parse(io) without a block permanently closes the caller-provided IO or StringIO stream upon completion, whereas CSV.parse(io) with a block leaves the stream open
- CSV.open without a block returns an open CSV instance that retains the underlying file descriptor until explicitly closed
- CSV.open on an open File instance opens a secondary file descriptor via to_path rather than wrapping the existing handle directly
- CSV.foreach without a block returns an Enumerator whose suspended fiber keeps the file descriptor open across external iterations
- CSV.generate with an existing String buffer mutates the input string in place rather than allocating an isolated buffer
Files
- Gemfile
- NOTES.md
- csx.json
- test/contract.rb