{"action":"created","comment":{"url":"https://api.github.com/repos/Microsoft/TypeScript/pulls/comments/51930206","id":51930206,"diff_hunk":"@@ -0,0 +1,23 @@\n+//// [blockScopedBindingsReassignedInLoop1.ts]\r\n+declare function use(n: number): void;\n+(function () {\n+  'use strict'\n+  for (let i = 0; i < 9; ++i) {\n+    (() => use(++i))();\n+  }\n+})();\r\n+\r\n+//// [blockScopedBindingsReassignedInLoop1.js]\r\n+(function () {\r\n+    'use strict';\r\n+    var _loop_1 = function(i) {\r\n+        (function () { return use(++i); })();\r\n+        out_i_1 = i;\r\n+    };\r\n+    var out_i_1;\r\n+    for (var i = 0; i < 9; ++i) {\r\n+        out_i_1 = i;\r","path":"tests/baselines/reference/blockScopedBindingsReassignedInLoop1.js","position":19,"original_position":19,"commit_id":"dbcfe110f1c82f0b247e186f68c95ab5afc5f999","original_commit_id":"dbcfe110f1c82f0b247e186f68c95ab5afc5f999","user":{"login":"mhegazy","id":8000722,"avatar_url":"https://avatars.githubusercontent.com/u/8000722?v=3","gravatar_id":"","url":"https://api.github.com/users/mhegazy","html_url":"https://github.com/mhegazy","followers_url":"https://api.github.com/users/mhegazy/followers","following_url":"https://api.github.com/users/mhegazy/following{/other_user}","gists_url":"https://api.github.com/users/mhegazy/gists{/gist_id}","starred_url":"https://api.github.com/users/mhegazy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mhegazy/subscriptions","organizations_url":"https://api.github.com/users/mhegazy/orgs","repos_url":"https://api.github.com/users/mhegazy/repos","events_url":"https://api.github.com/users/mhegazy/events{/privacy}","received_events_url":"https://api.github.com/users/mhegazy/received_events","type":"User","site_admin":false},"body":"i do not think we need this, since the function is guaranteed to set the correct value.","created_at":"2016-02-04T20:07:58Z","updated_at":"2016-02-04T20:07:58Z","html_url":"https://github.com/Microsoft/TypeScript/pull/6898#discussion_r51930206","pull_request_url":"https://api.github.com/repos/Microsoft/TypeScript/pulls/6898","_links":{"self":{"href":"https://api.github.com/repos/Microsoft/TypeScript/pulls/comments/51930206"},"html":{"href":"https://github.com/Microsoft/TypeScript/pull/6898#discussion_r51930206"},"pull_request":{"href":"https://api.github.com/repos/Microsoft/TypeScript/pulls/6898"}}},"pull_request":{"url":"https://api.github.com/repos/Microsoft/TypeScript/pulls/6898","id":58251942,"html_url":"https://github.com/Microsoft/TypeScript/pull/6898","diff_url":"https://github.com/Microsoft/TypeScript/pull/6898.diff","patch_url":"https://github.com/Microsoft/TypeScript/pull/6898.patch","issue_url":"https://api.github.com/repos/Microsoft/TypeScript/issues/6898","number":6898,"state":"open","locked":false,"title":"propagate back assignments to block scoped binding from the loop body","user":{"login":"vladima","id":8052307,"avatar_url":"https://avatars.githubusercontent.com/u/8052307?v=3","gravatar_id":"","url":"https://api.github.com/users/vladima","html_url":"https://github.com/vladima","followers_url":"https://api.github.com/users/vladima/followers","following_url":"https://api.github.com/users/vladima/following{/other_user}","gists_url":"https://api.github.com/users/vladima/gists{/gist_id}","starred_url":"https://api.github.com/users/vladima/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vladima/subscriptions","organizations_url":"https://api.github.com/users/vladima/orgs","repos_url":"https://api.github.com/users/vladima/repos","events_url":"https://api.github.com/users/vladima/events{/privacy}","received_events_url":"https://api.github.com/users/vladima/received_events","type":"User","site_admin":false},"body":"fixes #6877.\r\nNOTE: it will be cleaner to emit loop body as \r\n```ts\r\nlet loop = function(...) {\r\n    try { loop body }\r\n    finally { copy local values to out parameters }\r\n}\r\n```\r\ninstead of writing copy snippet at every point where control flow exits loop. However currently V8 does not optimize [protected regions](https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#2-unsupported-syntax) so between prettiness and perf of generated code I'd prefer to favor the second 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