2015-12-04.md

Subteam report: libs 2015-12-04

Highlights

This week the team made decisions on stabilizations for the 1.6 cycle. The decisions are as follows, with more detail available in the linked issues:

• FCP Issue #27701: Tracking issue for libcore + no_std stabilization
  • Stabilize
• FCP Issue #27704: Tracking issue for OsStr conversions
  • Deprecate
• FCP Issue #27707: Tracking issue for fs::walk_dir
  • Deprecate
• FCP Issue #27709: Tracking issue for Ipv{4,6}Addr convenience methods
  • Wait
• FCP Issue #27710: Tracking issue for fs::DirBuilder
  • Stabilize
• FCP Issue #27711: Tracking issue for drain stabilization
  • Stabilize
• FCP Issue #27713: Tracking issue for custom hashers in HashMap
  • Stabilize
• FCP Issue #27724: Tracking issue for {min,max} on iterators
  • Stabilize
• FCP Issue #27727: Tracking issue for path_components_peek stabilization
  • Deprecate
• FCP Issue #27740: Tracking issue for std::slice::bytes
  • Deprecate
• FCP Issue #27744: Tracking issue for push_all stabilization
  • Stabilize
• FCP Issue #27750: Tracking issue for clone_from_slice stabilization
  • Stabilize
• FCP Issue #27799: Tracking issue for Duration::span
  • Deprecate
• FCP Issue #27801: Tracking issue for IpAddr
  • Deprecate
• FCP Issue #27802: Tracking issue for standard Read/Write adapters
  • Deprecate (mostly)
• FCP Issue #28796: Tracking issue for FnBox()
  • Wait
• FCP Issue #28968: Tracking Issue for Mutex and RWLock unique accessors
  • Stabilize.

These changes will ship in the 1.6 beta being cut next week.

Dashboard

High priority issues

• Issue #29008: stdlib Path has inconsistent normalisation behaviour
• Issue #29931: Vec's reallocation strategy needs settling

Issues needing a decision

• Issue #27714: Tracking issue for str_utf16 stabilization

RFC phase

• FCP PR #1100: Add thread-local custom panic handlers to customize the behavior of thread panics
• FCP PR #1328: Allow a custom panic handler
• PR #1218: RFC: Checked integer conversions
• PR #1254: ordered ranges 2.0
• PR #1258: Add macros to get the values of configuration flags
• PR #1299: std::sync::mpsc::SharedSender
• PR #1309: OS string string-like interface
• PR #1320: Amend 1192 (RangeInclusive) to use an enum.
• PR #1325: Add panic-safe slicing methods
• PR #1353: Add retain_mut to Vec and VecDeque
• PR #1359: RFC: Add CommandExt::{exec, before_exec}
• PR #1370: RFC: Transparently use verbatim paths on Windows
• PR #1379: Change thread local variables to only accept async-signal-safe types.
• PR #1387: Add a pod language item and marker trait.

Implementation phase

• FCP Issue #27585: Tracking issue for read_exact (RFC #980)
• 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 #28628: Tracking issue for forbidding wildcard deps on crates.io
• Issue #29453: Add Capacity/length methods for OsString

Stabilization phase

• FCP Issue #27701: Tracking issue for libcore + no_std stabilization
• FCP Issue #27704: Tracking issue for OsStr conversions
• FCP Issue #27707: Tracking issue for fs::walk_dir
• FCP Issue #27709: Tracking issue for Ipv{4,6}Addr convenience methods
• FCP Issue #27710: Tracking issue for fs::DirBuilder
• FCP Issue #27711: Tracking issue for drain stabilization
• FCP Issue #27713: Tracking issue for custom hashers in HashMap
• FCP Issue #27724: Tracking issue for {min,max} on iterators
• FCP Issue #27727: Tracking issue for path_components_peek stabilization
• FCP Issue #27740: Tracking issue for std::slice::bytes
• FCP Issue #27744: Tracking issue for push_all stabilization
• FCP Issue #27750: Tracking issue for clone_from_slice stabilization
• FCP Issue #27799: Tracking issue for Duration::span
• FCP Issue #27801: Tracking issue for IpAddr
• FCP Issue #27802: Tracking issue for standard Read/Write adapters
• FCP Issue #28796: Tracking issue for FnBox()
• FCP Issue #28968: Tracking Issue for Mutex and RWLock unique accessors
• Issue #23284: Tracking issue for Path::relative_from stabilization
• Issue #27389: Tracking issue for changing the global, default allocator (RFC 1183)
• Issue #27700: Tracking issue for allocation APIs
• Issue #27703: Tracking issue for stabilizing randomness
• Issue #27705: Tracking issue for DNS in std::net
• Issue #27708: Tracking issue for as_unsafe_cell stabilization
• Issue #27712: Tracking issue for fs_mode stabilization
• 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 #27726: Tracking issue for access to Formatter flags/options
• Issue #27728: Tracking issue for formatting with a radix
• Issue #27729: Tracking issue for as_slice stabilization
• Issue #27730: Tracking issue for NonZero/Unique/Shared 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 #27735: Tracking issue for IntoCow stabilization
• Issue #27738: Tracking issue for reentrant mutexes
• Issue #27739: Tracking issue for Zero/One/iter_arith stabilization
• Issue #27741: Tracking issue for step_by 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 #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 #27778: Tracking issue for core::array
• Issue #27779: Tracking issue for placement new
• Issue #27780: Tracking issue for <*mut T, *const T>::{as_ref, as_mut_ref}
• 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 #27791: Tracking issue for str escaping
• Issue #27794: Tracking issue for extra linked list methods
• Issue #27798: Tracking issue for sync::Semaphore
• Issue #27800: Tracking issue for channel selection
• Issue #27809: Tracking issue for make_ascii_{upper,lower}case
• Issue #27811: Tracking issue for CommandExt::session_leader
• Issue #27812: Tracking issue for crates that are compiler dependencies
• Issue #28147: Tracking issue for BinaryHeap::{push_pop, replace}
• Issue #28356: Tracking issue for Arc/Rc extras
• Issue #29157: Tracking issue for owned CString conversions
• Issue #29553: Tracking issue for #[bench] and benchmarking support
• Issue #29791: Tracking issue for getting pthread_t from JoinHandle
• Issue #29866: Expand the std::time module