{"action":"created","issue":{"url":"https://api.github.com/repos/tc39/ecma262/issues/105","labels_url":"https://api.github.com/repos/tc39/ecma262/issues/105/labels{/name}","comments_url":"https://api.github.com/repos/tc39/ecma262/issues/105/comments","events_url":"https://api.github.com/repos/tc39/ecma262/issues/105/events","html_url":"https://github.com/tc39/ecma262/pull/105","id":113071569,"number":105,"title":"Remove unnecessary ReturnIfAbrupt calls","user":{"login":"anba","id":1447066,"avatar_url":"https://avatars.githubusercontent.com/u/1447066?v=3","gravatar_id":"","url":"https://api.github.com/users/anba","html_url":"https://github.com/anba","followers_url":"https://api.github.com/users/anba/followers","following_url":"https://api.github.com/users/anba/following{/other_user}","gists_url":"https://api.github.com/users/anba/gists{/gist_id}","starred_url":"https://api.github.com/users/anba/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/anba/subscriptions","organizations_url":"https://api.github.com/users/anba/orgs","repos_url":"https://api.github.com/users/anba/repos","events_url":"https://api.github.com/users/anba/events{/privacy}","received_events_url":"https://api.github.com/users/anba/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2015-10-23T18:09:08Z","updated_at":"2015-10-23T22:46:36Z","closed_at":"2015-10-23T20:10:17Z","pull_request":{"url":"https://api.github.com/repos/tc39/ecma262/pulls/105","html_url":"https://github.com/tc39/ecma262/pull/105","diff_url":"https://github.com/tc39/ecma262/pull/105.diff","patch_url":"https://github.com/tc39/ecma262/pull/105.patch"},"body":"Fixes\r\nhttps://bugs.ecmascript.org/show_bug.cgi?id=4445\r\nhttps://bugs.ecmascript.org/show_bug.cgi?id=4460\r\nhttps://bugs.ecmascript.org/show_bug.cgi?id=4461\r\nhttps://bugs.ecmascript.org/show_bug.cgi?id=4475\r\n\r\nThe ReturnIfAbrupt after GetBindingValue is the only where an explicit assertion makes sense."},"comment":{"url":"https://api.github.com/repos/tc39/ecma262/issues/comments/150709927","html_url":"https://github.com/tc39/ecma262/pull/105#issuecomment-150709927","issue_url":"https://api.github.com/repos/tc39/ecma262/issues/105","id":150709927,"user":{"login":"bterlson","id":11236,"avatar_url":"https://avatars.githubusercontent.com/u/11236?v=3","gravatar_id":"","url":"https://api.github.com/users/bterlson","html_url":"https://github.com/bterlson","followers_url":"https://api.github.com/users/bterlson/followers","following_url":"https://api.github.com/users/bterlson/following{/other_user}","gists_url":"https://api.github.com/users/bterlson/gists{/gist_id}","starred_url":"https://api.github.com/users/bterlson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bterlson/subscriptions","organizations_url":"https://api.github.com/users/bterlson/orgs","repos_url":"https://api.github.com/users/bterlson/repos","events_url":"https://api.github.com/users/bterlson/events{/privacy}","received_events_url":"https://api.github.com/users/bterlson/received_events","type":"User","site_admin":false},"created_at":"2015-10-23T22:46:36Z","updated_at":"2015-10-23T22:46:36Z","body":"@anba pointed out that the bad part about my strawman is that it makes it impossible to assert that the result of the call wasn't an abrupt completion and I do find this to be a very useful explicit signal when implementing. Therefore, I amend my strawman to:\r\n\r\n```\r\n1. Let _result_ be Call(_method_, _obj_).\r\n1. Let _result2_ be !Call(_method_, _obj_).\r\n1. Let _completionResult_ be ?Call(_method_, _obj_).\r\n```\r\n\r\nAs shorthand for today's\r\n\r\n```\r\n1. Let _result_ be Call(_method_, _obj_).\r\n1. ReturnIfAbrupt(_result_).\r\n1. Let _result2_ be !Call(_method_, _obj_).\r\n1. Assert: _result2_ is never an abrupt completion.\r\n1. Let _completionResult_ be Call(_method_, _obj_).\r\n```\r\n\r\n@anba still doesn't much like this proposal so if I'm the odd man out we can go with requiring calls to be prefixed by ? unless you want a completion value.."}}