Hello and welcome to another issue of *This Week in Rust*! It's a bit delayed due to finals, but like the spinning of the Earth it goes on.
Shameless plug: [ask me to do things](http://www.reddit.com/r/rust/comments/1sikak/ask_cmr_to_do_things/) over my winter break! # What's cooking on master? 52 PRs were merged this week. ## Breaking Changes - The much-discussed [`Result` API changes](https://github.com/mozilla/rust/pull/10364) have happened. The gist of it is that `.ok()` and `.err()` return Options. The other changes didn't land, I assume they will be coming later. - The [JIT support has been removed](https://github.com/mozilla/rust/pull/10758), due to lack of maintenance and upstream changes (this came with the LLVM upgrade). - Keywords (except self) are [no longer allowed as lifetime parameters](https://github.com/mozilla/rust/pull/10675). - `Path::new` has been [renamed](https://github.com/mozilla/rust/pull/10796) back to `Path::init`. - `std::str::from_utf8` [no longer allocates](https://github.com/mozilla/rust/pull/10701). - `std::util::ignore` [has been renamed](https://github.com/mozilla/rust/pull/10701) to `std::util::drop`, to better reflect what it does. - Duplicate bindings are [no longer allowed](https://github.com/mozilla/rust/pull/10776) in struct bindings. That is, `let SomeStruct { foo, foo } = baz;` is no longer legal. - Dynamic library propagation [is reimplemented](https://github.com/mozilla/rust/pull/10777). - `extra::c_vec` [has been modernized](https://github.com/mozilla/rust/pull/10736). - `MutableVector::mut_split` [has been renamed](https://github.com/mozilla/rust/pull/10757) to `mut_split_at`. ## Other changes - A part of the tutorial [has been rewritten](https://github.com/mozilla/rust/pull/10690). - Vim highlighting [has been updated](https://github.com/mozilla/rust/pull/10793). - `deriving` [has better error messages](https://github.com/mozilla/rust/pull/10844). - `StrSlice` has [grown some documentation](https://github.com/mozilla/rust/pull/10824). - Snapshots are now [statically linked](https://github.com/mozilla/rust/pull/10809). - From the "changes I don't really understand" department, [trait lifetime parameters](https://github.com/mozilla/rust/pull/10506) are early bound in associated functions. - A race in the scheduler [has been squelched](https://github.com/mozilla/rust/pull/10817). - extra now has an [LRU cache](https://github.com/mozilla/rust/pull/10211). - A `log_enabled!(level)` macro [has been added](https://github.com/mozilla/rust/pull/10768), for checking if the program is being run at a given log level. - Static linking [now has docs](https://github.com/mozilla/rust/pull/10742)! - Memory usage when compiling librustc has been killed by 130MB with some [well-placed indirection](https://github.com/mozilla/rust/pull/10676). - `MutableVector` has [another iterator](https://github.com/mozilla/rust/pull/10739): `mut_chunks()`, for iterating over mutable slices. - The `reverse-complement` shootout benchmark [has been rewritten](https://github.com/mozilla/rust/pull/10799). ## New contributors - Alexandros Tasos - Diego Ongaro - Julia Evans - osa1 # Meeting The [weekly meeting](https://github.com/mozilla/rust/wiki/Meeting-weekly-2013-12-03) discussed using `box` for placement new, some rustpkg discussion, dropping the dependency on a system C++ library, and the above `from_utf8` and `Result` pull requests. # This Week in Servo Servo is a web browser engine written in Rust and is one of the primary test cases for the Rust language. We landed 19 PRs this week. ## Notable additions - Simon Sapin added the CSS visibility property in [#1331](https://github.com/mozilla/servo/pull/1331). - Juneyoung Cho landed local bookmark navigation in [#1262](https://github.com/mozilla/servo/pull/1262). - ms2ger added reporting exceptions to JS when the DOM implementation fails in [#1304](https://github.com/mozilla/servo/pull/1304). - Keegan McAllister and Patrick Kim landed several changes to continue our push to remove @-boxes to open up more of our data to safe parallel access across task boundaries. ## New contributors - Bruno de Oliveira Abinader - Daniel Hedlund ## New intern - Isabelle Carter will be joining us as part of the GNOME Outreach Program for Women, [OPW]( https://wiki.gnome.org/OutreachProgramForWomen ), and will be working on adding `position:fixed` support to Servo. The internship runs from December 10 through March 10. ## Meetings This week's [meeting](https://github.com/mozilla/servo/wiki/Meeting-2013-12-02) was short and mostly covered some build system changes that Jack is working on. In short, we will use Rust's static linking to make it easier to distribute a Servo binary and we are making a larger change to CMake in order to get both more reliable parallel/incremental builds and get support for cross-compilation. # Announcements etc - [Evict-BT](http://www.reddit.com/r/rust/comments/1s5laq/evictbt_an_issue_tracker_written_in_rust_that/) \- an issue tracker that integrates loosely with git. - [Rust with Emscripten](http://www.reddit.com/r/rust/comments/1s8c0j/rust_with_emscripten/) - [Day 36: On programming without malloc](http://www.reddit.com/r/rust/comments/1s3jgd/day_36_on_programming_without_malloc/) - [Rust experience report](http://www.reddit.com/r/rust/comments/1s3osp/blast_from_the_past_pre01_raytracer_rustdev_rust/) \- a pre-0.1 raytracer and response to the language. - [Rust frontend to GCC](http://www.reddit.com/r/rust/comments/1s0aj5/rust_frontend_to_gcc/) - [Types in Rust, for Beginners](http://www.reddit.com/r/rust/comments/1ry4ym/types_in_rust_for_beginners/) - [Thoughts on DST, part 4](http://www.reddit.com/r/rust/comments/1rxj0x/thoughts_on_dst_part_4_including_a_recap_of_parts/) - [Slides from pnkfelix's codemash presentation](http://pnkfelix.github.io/present-rust-codemesh2013/fklock-rust-codemesh2013.pdf). - [An ML thread on redundant APIs involving `Option`](http://www.reddit.com/r/rust/comments/1seoe1/lets_avoid_having_both_foo_and_foo_opt/) - [What do you want in a Rust Docker image?](http://www.reddit.com/r/rust/comments/1se6qa/rfc_what_do_you_want_in_a_rust_docker_image/) - [A huge thread on lots of things Rust](http://www.reddit.com/r/rust/comments/1s9y7o/less_is_more_lambda_the_ultimate/) - [Rust bindings to libsodium/NaCl](http://www.reddit.com/r/rust/comments/1s8opt/sodium_oxide_fast_cryptographic_library_for_rust/) _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
