rescript-lang / rescript-lang/rescript

Extend unboxed variants to support more advanced use cases

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Dominant language
OCaml
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Some ideas;

  • Shapes, like multiple constructors with records in a single unboxed variant, where we can figure out which record is which at runtime (by checking distinct props, etc)
  • Tuples

Especially the first one pops up here and there when interoping with JS, and would be a fairly large capability improvement to have.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no files, tests, or entry points. Begin by locating the compiler implementation of unboxed variants, then determine how record-shape discrimination and tuple support should work; done would require an agreed design and coverage for the proposed advanced cases.

Written by the indexing model from the issue text.

Assessment

Tech stack
ocaml
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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