TR should provide a Dictionary type
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- Dominant language
- Racket
- Stars
- 575
- Forks
- 106
- Avg merge
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Description
It would be nice if TR provided a built-in Dictionary type. At its simplest, it would just be (U (HashTable a b) (Listof (Pairof a b)), but vectors are also technically dictionaries.
Does TR's type system allow "specializations" of types? I.e. some way to define a special case for (Dictionary Integer b) that includes vectors?
Technically, dictionaries also include structures that implement gen:dict, but obviously generics don't exist in TR yet.
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Research direction
Start with the Typed Racket type-system implementation and determine whether it supports specialized type definitions or vector-specific cases. Investigate how HashTable, Listof, Pairof, and vector types could participate in a Dictionary abstraction, then document a concrete design and its scope; the issue names no files or tests.
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Assessment
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100