Psych does not complain about duplicate keys
Open
Nobody has claimed this yet.
- Dominant language
- Ruby
- Stars
- 597
- Forks
- 223
- Avg merge
- 11h 23m
- Merged PRs (30d)
- 3
Description
Psych does not complain or raise an error when it encounters a duplicate key. Instead, it happily overwrites the previous value of the key. This is in contrast to the YAML spec, which maintains that the keys must be unique.
Agree/disagree that this is a problem?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No file, test, or entry point is identified in the issue. Start by reading the YAML uniqueness requirement and the existing discussion, then locate Psych’s duplicate-key parsing path and its current tests; done should include an agreed behavior and regression coverage for duplicate keys.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- ruby, yaml
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100