Content copied from http://cmr.github.io/blog/2013/07/21/this-week-in-rust/
-- Hello and welcome to the seventh issue of *This Week in Rust*, a weekly overview of Rust and its community. Things are calming down quite a bit, in that nothing extraordinarily exciting is happening. Lots of great work is being done everywhere, and good progress is being made in both bugfixes and cleanup. It has been a good week! <!-- more --> # What's cooking on master? Issue churn this week was -15. A total of 59 PRs were merged. ## Breaking changes - **[The semantics of `range_rev` have changed](https://github.com/mozilla/rust/pull/7684). This will break your code without warning.** It is now, to use [interval notation](https://en.wikipedia.org/wiki/Interval_%28mathematics%29#Notations_for_intervals), `(hi, lo]` rather than `[hi, lo)`. - `pub extern` and `priv extern` [have been removed](https://github.com/mozilla/rust/pull/7896) from the language. This matches the previous similar change to `impl`. Place the visibility qualifier (`pub`/`priv`) on each item in the `extern` block instead. - `&T` (besides `&'static T`) is [no longer allowed in `@T`](https://github.com/mozilla/rust/pull/7894). - The `ThreadPerCore` spawn mode [has been removed](https://github.com/mozilla/rust/pull/7856), as it doesn't make sense with the new scheduler. - The `consume` methods of the hash containers [has been replaced with an external iterator](https://github.com/mozilla/rust/pull/7833). The method name is the same, though. - Moved values can [no longer be captured twice](https://github.com/mozilla/rust/pull/7849). This was a blatant soundness issue. - The `swap_unwrap` method of Option has been [renamed to `take_unwrap`](https://github.com/mozilla/rust/pull/7831). - `debug!` statements [generate no code](https://github.com/mozilla/rust/pull/7822) unless you pass `--cfg debug` to `rustc`. This should help keep code size down and make your programs a (tiny bit) faster. Now you don't have to feel bad about having `debug!` in hot code. - The `mutate_values` method of HashMap [has been removed](https://github.com/mozilla/rust/pull/7815). ## Notable library additions, bugfixes, and cleanup - An iterator adaptor was added that [endlessly repeats the iterator it is called on](https://github.com/mozilla/rust/pull/7882). - Generated test runners [now have a `-h`/`--help`](https://github.com/mozilla/rust/pull/7840) option. - Metric capturing + racheting [has been added](https://github.com/mozilla/rust/pull/7829) for benchmarks. - `local_data` [now has a `get_mut`](https://github.com/mozilla/rust/pull/7841) function. - `extra::semver` [has been updated to SemVer 2.0.0](https://github.com/mozilla/rust/pull/7726). - Consuming iterators [have been added](https://github.com/mozilla/rust/pull/7806) for the hash structures. - `extra::ringbuf` [now implements DoubleEndedIterator](https://github.com/mozilla/rust/pull/7808). - `Eq` [now has a default implementation of `ne`](https://github.com/mozilla/rust/pull/7799). - `extra::term` [now knows how to handle more attributes](https://github.com/mozilla/rust/pull/7716). - More containers [implement FromIter](https://github.com/mozilla/rust/pull/7788). This means you can use `.collect()` to gather the elements from an iterator into those containers. - [Task killing, failure, and exit code propagation](https://github.com/mozilla/rust/pull/7858) in the new runtime has been implemented. ## Notable compiler additions, bugfixes, and cleanup - `syntax::attr` [has been modernized](https://github.com/mozilla/rust/pull/7902). - [Tons of debuginfo work](https://github.com/mozilla/rust/pull/7710) from mw this week! - Trait data structures [have been cleaned up](https://github.com/mozilla/rust/pull/7886), as well as a default method fix. - Intrinsics [now have much better codegen](https://github.com/mozilla/rust/pull/7851). - A `no_implicit_prelude` attribute [has been added](https://github.com/mozilla/rust/pull/7844), which prevents prelude injection in the module heirarchy starting at the item which that attribute is added to. - C-style enum variants are [now allowed](https://github.com/mozilla/rust/pull/7827) in `[T, ..n]` expressions. - All language items are [now optional](https://github.com/mozilla/rust/pull/7828). The compiler emits an error if a language item is used but not provided. - The removal of `spanned<T>` [has begun](https://github.com/mozilla/rust/pull/7826). - Headers [have been removed](https://github.com/mozilla/rust/pull/7816) for `~str` and `~[T]` where `T` is unmanaged. ## Documentation, tools, and other stuff - rustpkg [now works when you don't give it a package ID](https://github.com/mozilla/rust/pull/7419). It builds/installs/cleans the package in the current directory, *iff* the current directory is in a rustpkg workspace. - `--quiet` is [no longer passed](https://github.com/mozilla/rust/pull/7847) to git during submodule operations, so you can see the progress of the huge LLVM download. - Documentation of the [lint-controlling attributes](https://github.com/mozilla/rust/pull/7823) was added. - rustpkg [now handles cloning from local git repos](https://github.com/mozilla/rust/pull/7681). - The GtkSourceView highlighting file [was improved](https://github.com/mozilla/rust/pull/7795). # Meetings The [Tuesday meeting](https://github.com/mozilla/rust/wiki/Meeting-weekly-2013-07-16) discussed nothing at all of importance. # Discussion + Blog posts - [Discussion and slides from Niko's presentation at the Northeastern University Programming Language Seminar](http://www.reddit.com/r/rust/comments/1imeac/guaranteeing_memory_safety_in_rust_niko_matsakis/) - [A nightly Ubuntu PPA](http://thread.gmane.org/gmane.comp.lang.rust.devel/4829) - [SIMD discussion](http://www.reddit.com/r/rust/comments/1igvye/vision_for_rust_simd/) - [Rust on bare metal ARM](https://mail.mozilla.org/pipermail/rust-dev/2013-July/004841.html) - [dherman's OSCON presentation](http://www.oscon.com/oscon2013/public/schedule/detail/28741) _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev
