Trait objects for multiple traits
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Description
Given arbitrary traits Foo and Bar, it'd be great to have Box<Foo + Bar> compile, but there are unresolved questions that need to be laid out explicitly. (Moved from https://github.com/rust-lang/rust/issues/32220)
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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 RFC issue and the linked original Rust issue, since no files, tests, or entry points are identified. Clarify the unresolved questions around allowing Box<Foo + Bar>; done means the design questions are explicitly resolved in an accepted RFC.
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