A trait which is implemented only by raw trait objects
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Description
This would allow T: ?Sized + Trait (name bikesheddable) to guarantee that T is an unsized trait object, and can be transmuted to a raw::TraitObject. Trait would be quite useful for working with downcasting and safely adding downcasting to an existing trait that isn't Any.
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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
Start by reading the issue proposal and the linked Rust RFC process guidance; no implementation files, tests, or entry points are identified. Determine the intended semantics and safety guarantees for a trait implemented only by raw trait objects, including its relationship to downcasting and raw::TraitObject. Done would require an agreed design and an accepted RFC or equivalent project decision.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100