{"action":"closed","issue":{"url":"https://api.github.com/repos/crystal-lang/crystal/issues/4731","repository_url":"https://api.github.com/repos/crystal-lang/crystal","labels_url":"https://api.github.com/repos/crystal-lang/crystal/issues/4731/labels{/name}","comments_url":"https://api.github.com/repos/crystal-lang/crystal/issues/4731/comments","events_url":"https://api.github.com/repos/crystal-lang/crystal/issues/4731/events","html_url":"https://github.com/crystal-lang/crystal/issues/4731","id":244588718,"number":4731,"title":"Consider extracting typechecker","user":{"login":"stereobooster","id":179534,"avatar_url":"https://avatars2.githubusercontent.com/u/179534?v=4","gravatar_id":"","url":"https://api.github.com/users/stereobooster","html_url":"https://github.com/stereobooster","followers_url":"https://api.github.com/users/stereobooster/followers","following_url":"https://api.github.com/users/stereobooster/following{/other_user}","gists_url":"https://api.github.com/users/stereobooster/gists{/gist_id}","starred_url":"https://api.github.com/users/stereobooster/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stereobooster/subscriptions","organizations_url":"https://api.github.com/users/stereobooster/orgs","repos_url":"https://api.github.com/users/stereobooster/repos","events_url":"https://api.github.com/users/stereobooster/events{/privacy}","received_events_url":"https://api.github.com/users/stereobooster/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2017-07-21T07:40:21Z","updated_at":"2017-07-28T14:04:15Z","closed_at":"2017-07-28T14:04:15Z","body":"Basically Crystal is based on Ruby Syntax (with some extension). I was wondering if I can reuse Crystal type checker as gradual type checker for Ruby files. Something like Facebook Flow for JavaScript. Matz considering to add gradual types to Ruby3, but that long time to wait. There was some research in this area, but nothing promising. Still looking for solution"}}
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