{"action":"created","comment":{"url":"https://api.github.com/repos/pingcap/tikv/pulls/comments/130786115","pull_request_review_id":53698785,"id":130786115,"diff_hunk":"@@ -192,6 +304,21 @@ pub trait DecodeProperties {\n         let mut buf = try!(self.decode(k));\n         buf.decode_u64()\n     }\n+\n+    fn decode_handles(&self, k: &str) -> Result<BTreeMap<Vec<u8>, IndexHandle>> {\n+        let mut res = BTreeMap::new();\n+        let mut buf = try!(self.decode(k));\n+        while !buf.is_empty() {\n+            let klen = try!(buf.decode_u64());\n+            let mut k = vec![0; klen as usize];\n+            try!(buf.read_exact(k.as_mut_slice()));","path":"src/util/properties.rs","position":154,"original_position":154,"commit_id":"34d428939fc2b82d3e4117d8aa7a47cd23b0deec","original_commit_id":"34d428939fc2b82d3e4117d8aa7a47cd23b0deec","user":{"login":"siddontang","id":1080370,"avatar_url":"https://avatars2.githubusercontent.com/u/1080370?v=4","gravatar_id":"","url":"https://api.github.com/users/siddontang","html_url":"https://github.com/siddontang","followers_url":"https://api.github.com/users/siddontang/followers","following_url":"https://api.github.com/users/siddontang/following{/other_user}","gists_url":"https://api.github.com/users/siddontang/gists{/gist_id}","starred_url":"https://api.github.com/users/siddontang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/siddontang/subscriptions","organizations_url":"https://api.github.com/users/siddontang/orgs","repos_url":"https://api.github.com/users/siddontang/repos","events_url":"https://api.github.com/users/siddontang/events{/privacy}","received_events_url":"https://api.github.com/users/siddontang/received_events","type":"User","site_admin":false},"body":"can we use `&mut k`","created_at":"2017-08-02T05:02:07Z","updated_at":"2017-08-02T05:02:07Z","html_url":"https://github.com/pingcap/tikv/pull/2097#discussion_r130786115","pull_request_url":"https://api.github.com/repos/pingcap/tikv/pulls/2097","_links":{"self":{"href":"https://api.github.com/repos/pingcap/tikv/pulls/comments/130786115"},"html":{"href":"https://github.com/pingcap/tikv/pull/2097#discussion_r130786115"},"pull_request":{"href":"https://api.github.com/repos/pingcap/tikv/pulls/2097"}}},"pull_request":{"url":"https://api.github.com/repos/pingcap/tikv/pulls/2097","id":132910735,"html_url":"https://github.com/pingcap/tikv/pull/2097","diff_url":"https://github.com/pingcap/tikv/pull/2097.diff","patch_url":"https://github.com/pingcap/tikv/pull/2097.patch","issue_url":"https://api.github.com/repos/pingcap/tikv/issues/2097","number":2097,"state":"open","locked":false,"title":"Add size properties 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CF_WRITE.\r\n\r\nDon't merge until https://github.com/pingcap/tikv/pull/2096 has been 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