racket / racket/typed-racket

for/first should be smarter

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Dominant language
Racket
Stars
575
Forks
106
Avg merge
2h 1m
Merged PRs (30d)
2

Description

#lang typed/racket

(ann (for/first : Boolean ([x : Integer (in-list (build-list 10 add1))])
       (equal? x 17))
     Boolean)

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 includes only a Typed Racket example and does not name an implementation file, test, entry point, or expected behavior. Clarify what “smarter” means for for/first before locating the relevant type-checking code and defining completion tests.

Written by the indexing model from the issue text.

Assessment

Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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