Consider some form of extensible enums
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Description
There are a number of different approaches to making enums more extensible, e.g. extensible sum types, polymorphic variants, and union types. We should survey the landscape of ideas and find one that works best in the context of Rust.
Any concrete proposal should include details of the type system changes (including interaction with other type system features) and in-memory data representation.
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Research direction
Start by surveying extensible sum types, polymorphic variants, and union types in the context of Rust. A completed proposal should explain the required type-system changes, their interaction with other type-system features, and the in-memory data representation.
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Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 20/100