{"action":"created","issue":{"url":"https://api.github.com/repos/probmods/webppl/issues/174","labels_url":"https://api.github.com/repos/probmods/webppl/issues/174/labels{/name}","comments_url":"https://api.github.com/repos/probmods/webppl/issues/174/comments","events_url":"https://api.github.com/repos/probmods/webppl/issues/174/events","html_url":"https://github.com/probmods/webppl/issues/174","id":104573624,"number":174,"title":"Evaluate using immutable data structures for traces, stores, etc.","user":{"login":"stuhlmueller","id":382515,"avatar_url":"https://avatars.githubusercontent.com/u/382515?v=3","gravatar_id":"","url":"https://api.github.com/users/stuhlmueller","html_url":"https://github.com/stuhlmueller","followers_url":"https://api.github.com/users/stuhlmueller/followers","following_url":"https://api.github.com/users/stuhlmueller/following{/other_user}","gists_url":"https://api.github.com/users/stuhlmueller/gists{/gist_id}","starred_url":"https://api.github.com/users/stuhlmueller/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stuhlmueller/subscriptions","organizations_url":"https://api.github.com/users/stuhlmueller/orgs","repos_url":"https://api.github.com/users/stuhlmueller/repos","events_url":"https://api.github.com/users/stuhlmueller/events{/privacy}","received_events_url":"https://api.github.com/users/stuhlmueller/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2015-09-02T21:20:15Z","updated_at":"2015-10-14T07:36:20Z","closed_at":null,"body":"This would make copying trivially O(1). \r\n\r\nSee [ImmutableJS](https://facebook.github.io/immutable-js/).\r\n\r\nThis came up in #169."},"comment":{"url":"https://api.github.com/repos/probmods/webppl/issues/comments/147963072","html_url":"https://github.com/probmods/webppl/issues/174#issuecomment-147963072","issue_url":"https://api.github.com/repos/probmods/webppl/issues/174","id":147963072,"user":{"login":"null-a","id":9109012,"avatar_url":"https://avatars.githubusercontent.com/u/9109012?v=3","gravatar_id":"","url":"https://api.github.com/users/null-a","html_url":"https://github.com/null-a","followers_url":"https://api.github.com/users/null-a/followers","following_url":"https://api.github.com/users/null-a/following{/other_user}","gists_url":"https://api.github.com/users/null-a/gists{/gist_id}","starred_url":"https://api.github.com/users/null-a/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/null-a/subscriptions","organizations_url":"https://api.github.com/users/null-a/orgs","repos_url":"https://api.github.com/users/null-a/repos","events_url":"https://api.github.com/users/null-a/events{/privacy}","received_events_url":"https://api.github.com/users/null-a/received_events","type":"User","site_admin":false},"created_at":"2015-10-14T07:36:20Z","updated_at":"2015-10-14T07:36:20Z","body":"> I ran into issues turning this into a package, I'll raise a separate issue for the underlying problem there.\r\n\r\nThe change mentioned in #202 fixes this problem, and we now have a [linked-list](https://github.com/null-a/webppl-linked-list) package.\r\n\r\nI'll turn #202 into a PR if you think people might want to use this. If not, we can just sit on it until it bites us harder."}}