2015-09-21.md

Subteam report: libs 2015-09-21

Highlights

Last week marked the 1.3 stable/1.4 beta release. As part of this cycle, we went through a round of API stabilization and deprecation for the 1.4 release (after a cycle's worth of collecting final comments). You can see the outcome here.

We will be selecting the next batch of APIs to put up for stabilization or deprecation (for the 1.5 release) this week. Please take a look at the "stabilization phase" dashboard below, and leave a comment if you'd like to nominate an API for this process.

On the RFC front, we've been continuing to churn on some controversial points. The wildcard dependencies RFC remains open for another round of final comments:

• FCP PR #1241: Forbid wildcard dependencies on crates.io

In addition, there's been substantial discussion about catch_panic (now recover) since it was merged, including new alternative proposals for more sophisticated bounds; check out the latest comments here.

Finally, a long-awaited RFC for building out our std::time APIs has been posted:

• PR #1288: Improvements to the Time APIs

Please leave feedback on those RFCs to help drive the discussion forward!

Dashboard

Stabilization phase

• Issue #23284: Tracking issue for Path::relative_from stabilization
• Issue #27700: Tracking issue for allocation APIs
• Issue #27701: Tracking issue for libcore stabilization
• Issue #27702: Tracking issue for f32/f64 support in libcore
• Issue #27703: Tracking issue for stabilizing randomness
• Issue #27704: Tracking issue for OsStr conversions
• Issue #27705: Tracking issue for DNS in std::net
• Issue #27706: Tracking issue for std::fs::canonicalize
• Issue #27707: Tracking issue for fs::walk_dir
• Issue #27708: Tracking issue for as_unsafe_cell stabilization
• Issue #27709: Tracking issue for Ipv{4,6}Addr convenience methods
• Issue #27710: Tracking issue for fs::DirBuilder
• Issue #27711: Tracking issue for drain stabilization
• Issue #27712: Tracking issue for fs_mode stabilization
• Issue #27713: Tracking issue for custom hashers in HashMap
• Issue #27714: Tracking issue for str_utf16 stabilization
• Issue #27715: Tracking issue for Scoped TLS
• Issue #27716: Tracking issue for thread_local_state stabilization
• Issue #27717: Tracking issue for static synchronization primitives
• Issue #27719: Tracking issue for catch_panic stabilization
• Issue #27720: Tracking issue for OpenOptionsExt on Windows
• Issue #27721: Tracking issue for string patterns
• Issue #27722: Tracking issue for path_prefix stabilization
• Issue #27724: Tracking issue for {min,max} on iterators
• Issue #27725: Tracking issue for path_ext stabilization
• Issue #27726: Tracking issue for access to Formatter flags/options
• Issue #27727: Tracking issue for path_components_peek stabilization
• Issue #27728: Tracking issue for formatting with a radix
• Issue #27729: Tracking issue for as_slice stabilization
• Issue #27730: Tracking issue for NonZero/Unique stabilization
• Issue #27731: Tracking issue for SIMD support
• Issue #27732: Tracking issue for DST coercions (coerce_unsized, unsize) stabilization
• Issue #27733: Tracking issue for borrow_state stabilization
• Issue #27734: Tracking issue for concrete errors in the standard library
• Issue #27735: Tracking issue for IntoCow stabilization
• Issue #27737: Tracking issue for iter_order stabilization
• Issue #27738: Tracking issue for reentrant mutexes
• Issue #27739: Tracking issue for Zero/One/iter_arith stabilization
• Issue #27740: Tracking issue for std::slice::bytes
• Issue #27741: Tracking issue for step_by stabilization
• Issue #27742: Tracking issue for slice_splits
• Issue #27743: Tracking issue for str::match_indices
• Issue #27744: Tracking issue for push_all stabilization
• Issue #27745: Tracking issue for type_id stabilization
• Issue #27746: Tracking issue for cell_extras stabilization
• Issue #27747: Tracking issue for slice_concat_ext stabilization
• Issue #27748: Tracking issue for wait_timeout_with stabilization
• Issue #27749: Tracking issue for Reflect stabilization
• Issue #27750: Tracking issue for clone_from_slice stabilization
• Issue #27751: Tracking issue for raw stabilization
• Issue #27752: Tracking issue for float_extras stabilization
• Issue #27753: Tracking issue for num_bits_bytes stabilization
• Issue #27754: Tracking issue for str_char stabilization
• Issue #27755: Tracking issue for wrapping stabilization
• Issue #27772: Tracking issue for Condvar::wait_timeout
• Issue #27774: Tracking issue for slice::{ref_slice, mut_ref_slice}
• Issue #27777: Tracking issue for iter::range_inclusive
• Issue #27778: Tracking issue for core::array
• Issue #27779: Tracking issue for library support of placement new
• Issue #27780: Tracking issue for <*mut T, *const T>::{as_ref, as_mut_ref}
• Issue #27781: Tracking issue for char::from_u32_unchecked
• Issue #27782: Tracking issue for DebugTuple::formatter
• Issue #27783: Tracking issue for location of facade crates
• Issue #27784: Tracking issue for char encoding methods
• Issue #27787: Tracking issue for sorted collection ranges
• Issue #27788: Tracking issue for VecDeque Extras
• Issue #27790: Tracking issue for Vec::resize
• Issue #27791: Tracking issue for str escaping
• Issue #27793: Tracking issue for str::slice_mut_unchecked
• Issue #27794: Tracking issue for extra linked list methods
• Issue #27796: Tracking issue for unix::FileTypeExt
• Issue #27798: Tracking issue for sync::Semaphore
• Issue #27799: Tracking issue for Duration::span
• Issue #27800: Tracking issue for channel selection
• Issue #27801: Tracking issue for IpAddr
• Issue #27802: Tracking issue for standard Read/Write adapters
• Issue #27809: Tracking issue for make_ascii_{upper,lower}case
• Issue #27810: Tracking issue for std::dynamic_lib
• Issue #27811: Tracking issue for CommandExt::session_leader
• Issue #27812: Tracking issue for crates that are compiler dependencies
• Issue #28147: Tracking issue for BinaryHeap
• Issue #28356: Tracking issue for Arc/Rc extras

Implementation phase

• Issue #19986: Tracking issue for collections reform part 2 (RFC 509)
• Issue #21923: Audit raw pointer to reference conventions
• Issue #22477: Tracking issue for Add a generic string pattern matching API (RFC 528)
• Issue #23055: Tracking issue for Replace Vec::drain by a method that accepts a range parameter (RFC 574)
• Issue #24263: discriminant_value intrinsic -- tracking issue for 639
• Issue #27517: Add ByNeed and Predicate traits
• Issue #27585: Tracking issue for read_exact (RFC #980)

Issues needing a decision

• Issue #27217: Add OpenOptions::exclusive
• Issue #27580: Leading plus for string to integer parsing
• Issue #28125: Specialise count, last and nth for Cloned and Map iterators

RFC phase

• FCP PR #1241: Forbid wildcard dependencies on crates.io
• PR #1036: Add Builder guidelines
• PR #1100: Add thread-local custom panic handlers to customize the behavior of thread panics
• PR #1218: RFC: Checked integer conversions
• PR #1252: Document and expand the open options
• PR #1254: ordered ranges 2.0
• PR #1255: RFC: Stabilize OS string to bytes conversions
• PR #1257: RFC: .drain(range) and .drain()
• PR #1258: Add macros to get the values of configuration flags
• PR #1270: RFC: #[deprecated] for Everyone
• PR #1288: Improvements to the Time APIs

High priority issues

• Issue #27741: Tracking issue for step_by stabilization
• Issue #28075: use of unstable function is not gated in import list