{"action":"created","issue":{"url":"https://api.github.com/repos/shirok/Gauche/issues/51","labels_url":"https://api.github.com/repos/shirok/Gauche/issues/51/labels{/name}","comments_url":"https://api.github.com/repos/shirok/Gauche/issues/51/comments","events_url":"https://api.github.com/repos/shirok/Gauche/issues/51/events","html_url":"https://github.com/shirok/Gauche/pull/51","id":56146471,"number":51,"title":"Refine if-let1","user":{"login":"wasao","id":1023722,"avatar_url":"https://avatars.githubusercontent.com/u/1023722?v=3","gravatar_id":"","url":"https://api.github.com/users/wasao","html_url":"https://github.com/wasao","followers_url":"https://api.github.com/users/wasao/followers","following_url":"https://api.github.com/users/wasao/following{/other_user}","gists_url":"https://api.github.com/users/wasao/gists{/gist_id}","starred_url":"https://api.github.com/users/wasao/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wasao/subscriptions","organizations_url":"https://api.github.com/users/wasao/orgs","repos_url":"https://api.github.com/users/wasao/repos","events_url":"https://api.github.com/users/wasao/events{/privacy}","received_events_url":"https://api.github.com/users/wasao/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-02-01T00:45:47Z","updated_at":"2015-02-02T03:08:44Z","closed_at":"2015-02-01T09:08:18Z","pull_request":{"url":"https://api.github.com/repos/shirok/Gauche/pulls/51","html_url":"https://github.com/shirok/Gauche/pull/51","diff_url":"https://github.com/shirok/Gauche/pull/51.diff","patch_url":"https://github.com/shirok/Gauche/pull/51.patch"},"body":"It seems better than returning #\\<undef\\> . I suppose ```(if-let1 x (f) (g x))``` is more readable than ```(and-let* ([x (f)]) (g x))``` .\r\n\r\n## Before\r\n```scm\r\ngosh> (if-let1 x #f 0)\r\n#<undef>\r\n```\r\n\r\n## After\r\n```scm\r\ngosh> (if-let1 x #f 0)\r\n#f\r\n```"},"comment":{"url":"https://api.github.com/repos/shirok/Gauche/issues/comments/72401199","html_url":"https://github.com/shirok/Gauche/pull/51#issuecomment-72401199","issue_url":"https://api.github.com/repos/shirok/Gauche/issues/51","id":72401199,"user":{"login":"shirok","id":190598,"avatar_url":"https://avatars.githubusercontent.com/u/190598?v=3","gravatar_id":"","url":"https://api.github.com/users/shirok","html_url":"https://github.com/shirok","followers_url":"https://api.github.com/users/shirok/followers","following_url":"https://api.github.com/users/shirok/following{/other_user}","gists_url":"https://api.github.com/users/shirok/gists{/gist_id}","starred_url":"https://api.github.com/users/shirok/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/shirok/subscriptions","organizations_url":"https://api.github.com/users/shirok/orgs","repos_url":"https://api.github.com/users/shirok/repos","events_url":"https://api.github.com/users/shirok/events{/privacy}","received_events_url":"https://api.github.com/users/shirok/received_events","type":"User","site_admin":false},"created_at":"2015-02-02T03:08:44Z","updated_at":"2015-02-02T03:08:44Z","body":"I experimentally added and-let1.  It'll likely to stay unless we see strong objections."}}