{"action":"created","issue":{"url":"https://api.github.com/repos/r-lib/rlang/issues/415","repository_url":"https://api.github.com/repos/r-lib/rlang","labels_url":"https://api.github.com/repos/r-lib/rlang/issues/415/labels{/name}","comments_url":"https://api.github.com/repos/r-lib/rlang/issues/415/comments","events_url":"https://api.github.com/repos/r-lib/rlang/issues/415/events","html_url":"https://github.com/r-lib/rlang/issues/415","id":299361421,"number":415,"title":"dot_names","user":{"login":"hadley","id":4196,"avatar_url":"https://avatars3.githubusercontent.com/u/4196?v=4","gravatar_id":"","url":"https://api.github.com/users/hadley","html_url":"https://github.com/hadley","followers_url":"https://api.github.com/users/hadley/followers","following_url":"https://api.github.com/users/hadley/following{/other_user}","gists_url":"https://api.github.com/users/hadley/gists{/gist_id}","starred_url":"https://api.github.com/users/hadley/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hadley/subscriptions","organizations_url":"https://api.github.com/users/hadley/orgs","repos_url":"https://api.github.com/users/hadley/repos","events_url":"https://api.github.com/users/hadley/events{/privacy}","received_events_url":"https://api.github.com/users/hadley/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-02-22T13:51:51Z","updated_at":"2018-02-22T14:33:37Z","closed_at":null,"author_association":"OWNER","body":"```R\r\ndot_names(a = 1, b = 2, 3)\r\n#> [1] \"a\" \"b\" NA\r\n```\r\n\r\nIt's sometimes useful to capture the names of dotted arguments without evaluating them for generating error messages.\r\n\r\nRelated to `dots_n()`"},"comment":{"url":"https://api.github.com/repos/r-lib/rlang/issues/comments/367698893","html_url":"https://github.com/r-lib/rlang/issues/415#issuecomment-367698893","issue_url":"https://api.github.com/repos/r-lib/rlang/issues/415","id":367698893,"user":{"login":"lionel-","id":4465050,"avatar_url":"https://avatars2.githubusercontent.com/u/4465050?v=4","gravatar_id":"","url":"https://api.github.com/users/lionel-","html_url":"https://github.com/lionel-","followers_url":"https://api.github.com/users/lionel-/followers","following_url":"https://api.github.com/users/lionel-/following{/other_user}","gists_url":"https://api.github.com/users/lionel-/gists{/gist_id}","starred_url":"https://api.github.com/users/lionel-/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lionel-/subscriptions","organizations_url":"https://api.github.com/users/lionel-/orgs","repos_url":"https://api.github.com/users/lionel-/repos","events_url":"https://api.github.com/users/lionel-/events{/privacy}","received_events_url":"https://api.github.com/users/lionel-/received_events","type":"User","site_admin":false},"created_at":"2018-02-22T14:33:37Z","updated_at":"2018-02-22T14:33:37Z","author_association":"OWNER","body":"Would it make sense for `dots_names()` and `dots_n()` to have an `expand` argument? If `TRUE`, it would expand `!!!` to give the right answer when tidy dots are enabled. Should probably default to `FALSE` because this can have side effects or be costly.\r\n\r\nMaybe we can also check for `!!!` when `expand` is `FALSE` and either return `NA` or throw an error."}}
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