{"action":"created","issue":{"url":"https://api.github.com/repos/hazelgrove/hazelnut-popl17/issues/48","repository_url":"https://api.github.com/repos/hazelgrove/hazelnut-popl17","labels_url":"https://api.github.com/repos/hazelgrove/hazelnut-popl17/issues/48/labels{/name}","comments_url":"https://api.github.com/repos/hazelgrove/hazelnut-popl17/issues/48/comments","events_url":"https://api.github.com/repos/hazelgrove/hazelnut-popl17/issues/48/events","html_url":"https://github.com/hazelgrove/hazelnut-popl17/issues/48","id":186048910,"number":48,"title":"typechecker implementation","user":{"login":"ivoysey","id":4099104,"avatar_url":"https://avatars.githubusercontent.com/u/4099104?v=3","gravatar_id":"","url":"https://api.github.com/users/ivoysey","html_url":"https://github.com/ivoysey","followers_url":"https://api.github.com/users/ivoysey/followers","following_url":"https://api.github.com/users/ivoysey/following{/other_user}","gists_url":"https://api.github.com/users/ivoysey/gists{/gist_id}","starred_url":"https://api.github.com/users/ivoysey/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ivoysey/subscriptions","organizations_url":"https://api.github.com/users/ivoysey/orgs","repos_url":"https://api.github.com/users/ivoysey/repos","events_url":"https://api.github.com/users/ivoysey/events{/privacy}","received_events_url":"https://api.github.com/users/ivoysey/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-10-29T00:37:30Z","updated_at":"2016-10-29T00:37:36Z","closed_at":null,"body":"```“Is the assumption that the typing derivations are kept around by the\r\neditor and then modified?  Or is it just an optimization to only re-check\r\nif certain edit actions are applied?”```"},"comment":{"url":"https://api.github.com/repos/hazelgrove/hazelnut-popl17/issues/comments/257059294","html_url":"https://github.com/hazelgrove/hazelnut-popl17/issues/48#issuecomment-257059294","issue_url":"https://api.github.com/repos/hazelgrove/hazelnut-popl17/issues/48","id":257059294,"user":{"login":"ivoysey","id":4099104,"avatar_url":"https://avatars.githubusercontent.com/u/4099104?v=3","gravatar_id":"","url":"https://api.github.com/users/ivoysey","html_url":"https://github.com/ivoysey","followers_url":"https://api.github.com/users/ivoysey/followers","following_url":"https://api.github.com/users/ivoysey/following{/other_user}","gists_url":"https://api.github.com/users/ivoysey/gists{/gist_id}","starred_url":"https://api.github.com/users/ivoysey/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ivoysey/subscriptions","organizations_url":"https://api.github.com/users/ivoysey/orgs","repos_url":"https://api.github.com/users/ivoysey/repos","events_url":"https://api.github.com/users/ivoysey/events{/privacy}","received_events_url":"https://api.github.com/users/ivoysey/received_events","type":"User","site_admin":false},"created_at":"2016-10-29T00:37:36Z","updated_at":"2016-10-29T00:37:36Z","body":"Only those action rules that have a typing premise need to invoke the\r\ntypechecker, and then only on subtrees of the program (see our\r\nimplementation). Keeping around the types of subtrees would allow for\r\nfurther optimization even beyond this."}}
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