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Title: This Week in Rust 52
Date: 2014-06-14 23:29
Category: This Week in Rust
Hello and welcome to another issue of *This Week in Rust*!
[Rust](http://rust-lang.org) is a systems language pursuing the trifecta:
safe, concurrent, and fast. This is a weekly summary of its progress and
community. Want something mentioned? [Send me an
email!](mailto:corey@octayn.net?subject=This%20Week%20in%20Rust%20Suggestion)
Want to get involved? [We love
contributions](https://github.com/mozilla/rust/wiki/Note-guide-for-new-contributors).
<!-- more -->
# What's cooking on master?
74 pull requests were merged in the last week.
## Breaking Changes
So just dumping the breaking change log raw didn't really work out last time.
The complete log is available
[here](https://gist.github.com/cmr/d0e6d145af65e6d74713), and you can view it
with `git log --grep 'breaking-change' --since 6/7/2014 --until 6/14/2014`.
I've chosen some particular breaking changes I think are more-breaking than
the others.
- `~[T]` [has been 100% removed from the
language](https://github.com/mozilla/rust/pull/14703). To create a `Box<[T,
..N]>`, however, you temporarily need to do `box () ([1, 2, 3])`, rather
than `box [1, 2, 3]`, which will work in the future.
- Patterns that shadow themselves [are no longer
allowed](https://github.com/mozilla/rust/pull/14801), for example `let (a,
a) = (1, 2);`
- Some features [have been
removed](https://github.com/mozilla/rust/pull/14831) from `format!`, namely
pluralization and select, and escaping them has changed somewhat to no
longer use `\`.
- The ["stronger guarantees for mutable
borrows"](http://smallcultfollowing.com/babysteps/blog/2014/02/25/rust-rfc-stronger-guarantees-for-mutable-borrows/)
RFC [has been implemented](https://github.com/mozilla/rust/pull/14739).
- The `@`-syntax [has been removed
entirely](https://github.com/mozilla/rust/pull/14835). Together with `~[T]`,
this marks the end of the tyrannical rule of sigils!
- `transmute` [no longer casts](https://github.com/mozilla/rust/pull/14859)
between types which have type parameters.
## Other Changes
- The [`PartialEq`
docs](http://doc.rust-lang.org/std/cmp/trait.PartialEq.html) have been [revised for
clarity and correctness](https://github.com/mozilla/rust/pull/14733).
- The identifier name lint [now gives
suggestions](https://github.com/mozilla/rust/pull/14740) on what you could
rename your identifier to.
- The loadable syntax extensions work [has been
generalized](https://github.com/mozilla/rust/pull/14554) to more arbitrary
compiler plugins.
- Function call overloading [is now
implemented](https://github.com/mozilla/rust/pull/14590), as part of the
unboxed closure work.
- Unused struct fields [are now
detected](https://github.com/mozilla/rust/pull/14696) by the `dead_code`
lint.
- The docs [are now built with relative
links](https://github.com/mozilla/rust/pull/14777), letting local, off-line
copies work as expected.
- `libsync` [is now underneath
`libstd`](https://github.com/mozilla/rust/pull/14746).
- Debuginfo type identifiers [are now unique,
cross-crate](https://github.com/mozilla/rust/pull/14819) fixing debuginfo
with LTO.
- The results of compiler analysis [can now be dumped to
CSV](https://github.com/mozilla/rust/pull/13222), which the [DXR
tool](https://wiki.mozilla.org/DXR) will use.
- Rotates and byte swaps [are now
exposed](https://github.com/mozilla/rust/pull/14866) as nice methods on the
`Bitwise` trait.
## New Contributors
- Michael Reinhard
- Renato Riccieri Santos Zannon
- Renato Zannon
- Valentin Tsatskin
- Zach Pomerantz
- bachm
- theptrk
# New RFCs
- [Unboxed closures](https://github.com/rust-lang/rfcs/pull/114), the unboxed
closures RFC to rule them all.
- [Removing integer inference
fallback](https://github.com/rust-lang/rfcs/pull/115)
- [Feature gate import shadowing](https://github.com/rust-lang/rfcs/pull/116)
- [Rename `unsafe` to `trusted`](https://github.com/rust-lang/rfcs/pull/117)
- [Overloaded arithmetic and logical operators should take `self` and their
arguments by value](https://github.com/rust-lang/rfcs/pull/118)
- [Add support to serialize::json for incrementally reading multiple JSON
objects](https://github.com/rust-lang/rfcs/pull/119)
- [Reintroduce `do` keyword as sugar for nested match
statements](https://github.com/rust-lang/rfcs/pull/120)
# Community Updates
- [Comparing k-NN in Rust](http://huonw.github.io/2014/06/10/knn-rust.html)
- [Error handling in Rust: a k-NN case
study](http://huonw.github.io/2014/06/11/error-handling-in-rust-knn-case-study.html)
- [Los Angeles Rust
meetup](http://www.reddit.com/r/rust/comments/27x6b6/los_angeles_rust_meetup/)
- [AnyMap](https://github.com/chris-morgan/anymap), "a safe and convenient
store for one value of each type".
- [Rust By Example](http://rustbyexample.com/) now lets you execute code
examples on-page.
- [Piston game engine progress
update](http://www.reddit.com/r/rust/comments/286vfx/piston_game_engine_update_notice_on_progress/)
- [floor](http://cburgdorf.github.io/Floor/doc/floor/index.html), "a simple
and lightweight foundation for web applications written in Rust".
- [jit.rs](http://tombebbington.github.io/blog/2014/06/15/rust-libjit-wrapper/),
a libjit wrapper
- [stompers](https://github.com/mattyhall/stompers), a STOMP client
- [Brooklyn.rs](https://mail.mozilla.org/pipermail/rust-dev/2014-June/010232.html)
- [Rust nightlies archive](http://rustly.kokakiwi.net/)
- [Rusty Tetris](https://github.com/bachm/rusty-tetris), a tetris clone using
Piston
- [Introduction to
Rust](http://www.meetup.com/Pittsburgh-Code-Supply/events/184125612/), a
talk Ben Striegel is giving in Pittsburgh.
|
