Derive forking for any enum
@kishore08-07 is already working on this.
Since Mar 16, 2026.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 35/100
Research direction
Start by reviewing the existing forking support for Result and Option and the Unzippable trait. Compare the Fork and ForkEnum alternatives, including whether Unzippable should be renamed to Forkable, then define the supported custom-enum behavior and confirm the resulting API is consistent.
Written by the indexing model from the issue text.
Description
Currently there is built-in support for forking Result and Option types, but users may want to fork custom enum types as well. We could provide a Fork procedural macro (or maybe ForkEnum) that would allow any enum to be forked.
The same macro could also provide an implementation for Unzippable for the enums that it's applied to, where the branches of the unzip are conditionally run based on which variant the enum contained. In this case we might consider renaming the Unzippable trait to Forkable.
- Dominant language
- Rust
- Stars
- 75
- Forks
- 18
- Avg merge
- 12d 12h
- Merged PRs (30d)
- 3
Getting set up
- No Dockerfile or Docker Compose file
- No pull request template
- Read the contributing 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.
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