diff --git a/RELEASES.md b/RELEASES.md index 4185961187b39..fcf42b5fcb7d1 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,107 @@ +Version 1.36.0 (2019-07-04) +========================== + +Language +-------- +- [Non-Lexical Lifetimes are now enabled on the 2015 edition.][59114] +- [The order of traits in trait objects no longer affects the semantics of that + object.][59445] e.g. `dyn Send + fmt::Debug` is now equivalent to + `dyn fmt::Debug + Send`, where this was previously not the case. + +Libraries +--------- +- [`HashMap`'s implementation has been replaced with `hashbrown::HashMap` implementation.][58623] +- [`TryFromSliceError` now implements `From`.][60318] +- [`mem::needs_drop` is now available as a const fn.][60364] +- [`alloc::Layout::from_size_align_unchecked` is now available as a const fn.][60370] +- [`String` now implements `BorrowMut`.][60404] +- [`io::Cursor` now implements `Default`.][60234] +- [Both `NonNull::{dangling, cast}` are now const fns.][60244] +- [The `alloc` crate is now stable.][59675] `alloc` allows you to use a subset + of `std` (e.g. `Vec`, `Box`, `Arc`) in `#![no_std]` environments if the + environment has access to heap memory allocation. +- [`String` now implements `From<&String>`.][59825] +- [You can now pass multiple arguments to the `dbg!` macro.][59826] `dbg!` will + return a tuple of each argument when there is multiple arguments. +- [`Result::{is_err, is_ok}` are now `#[must_use]` and will produce a warning if + not used.][59648] + +Stabilized APIs +--------------- +- [`VecDeque::rotate_left`] +- [`VecDeque::rotate_right`] +- [`Iterator::copied`] +- [`io::IoSlice`] +- [`io::IoSliceMut`] +- [`Read::read_vectored`] +- [`Write::write_vectored`] +- [`str::as_mut_ptr`] +- [`mem::MaybeUninit`] +- [`pointer::align_offset`] +- [`future::Future`] +- [`task::Context`] +- [`task::RawWaker`] +- [`task::RawWakerVTable`] +- [`task::Waker`] +- [`task::Poll`] + +Cargo +----- +- [Cargo will now produce an error if you attempt to use the name of a required dependency as a feature.][cargo/6860] +- [You can now pass the `--offline` flag to run cargo without accessing the network.][cargo/6934] + +You can find further change's in [Cargo's 1.36.0 release notes][cargo-1-36-0]. + +Clippy +------ +There have been numerous additions and fixes to clippy, see [Clippy's 1.36.0 release notes][clippy-1-36-0] for more details. + +Misc +---- + +Compatibility Notes +------------------- +- [`std::arch::x86::_rdtsc` returns `u64` instead of `i64`][stdsimd/559] +- [`std::arch::x86_64::_mm_shuffle_ps` takes an `i32` instead of `u32` for `mask`][stdsimd/522] +- With the stabilisation of `mem::MaybeUninit`, `mem::uninitialized` use is no + longer recommended, and will be deprecated in 1.38.0. + +[60318]: https://github.com/rust-lang/rust/pull/60318/ +[60364]: https://github.com/rust-lang/rust/pull/60364/ +[60370]: https://github.com/rust-lang/rust/pull/60370/ +[60404]: https://github.com/rust-lang/rust/pull/60404/ +[60234]: https://github.com/rust-lang/rust/pull/60234/ +[60244]: https://github.com/rust-lang/rust/pull/60244/ +[58623]: https://github.com/rust-lang/rust/pull/58623/ +[59648]: https://github.com/rust-lang/rust/pull/59648/ +[59675]: https://github.com/rust-lang/rust/pull/59675/ +[59825]: https://github.com/rust-lang/rust/pull/59825/ +[59826]: https://github.com/rust-lang/rust/pull/59826/ +[59445]: https://github.com/rust-lang/rust/pull/59445/ +[59114]: https://github.com/rust-lang/rust/pull/59114/ +[cargo/6860]: https://github.com/rust-lang/cargo/pull/6860/ +[cargo/6934]: https://github.com/rust-lang/cargo/pull/6934/ +[`VecDeque::rotate_left`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html#method.rotate_left +[`VecDeque::rotate_right`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html#method.rotate_right +[`Iterator::copied`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#tymethod.copied +[`io::IoSlice`]: https://doc.rust-lang.org/std/io/struct.IoSlice.html +[`io::IoSliceMut`]: https://doc.rust-lang.org/std/io/struct.IoSliceMut.html +[`Read::read_vectored`]: https://doc.rust-lang.org/std/io/trait.Read.html#method.read_vectored +[`Write::write_vectored`]: https://doc.rust-lang.org/std/io/trait.Write.html#method.write_vectored +[`str::as_mut_ptr`]: https://doc.rust-lang.org/std/primitive.str.html#method.as_mut_ptr +[`mem::MaybeUninit`]: https://doc.rust-lang.org/std/mem/union.MaybeUninit.html +[`pointer::align_offset`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.align_offset +[`future::Future`]: https://doc.rust-lang.org/std/future/trait.Future.html +[`task::Context`]: https://doc.rust-lang.org/beta/std/task/struct.Context.html +[`task::RawWaker`]: https://doc.rust-lang.org/beta/std/task/struct.RawWaker.html +[`task::RawWakerVTable`]: https://doc.rust-lang.org/beta/std/task/struct.RawWakerVTable.html +[`task::Waker`]: https://doc.rust-lang.org/beta/std/task/struct.Waker.html +[`task::Poll`]: https://doc.rust-lang.org/beta/std/task/enum.Poll.html +[clippy-1-36-0]: https://github.com/rust-lang/rust-clippy/blob/master/CHANGELOG.md#rust-136 +[cargo-1-36-0]: https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md#cargo-136-2019-07-04 +[stdsimd/522]: https://github.com/rust-lang-nursery/stdsimd/issues/522 +[stdsimd/559]: https://github.com/rust-lang-nursery/stdsimd/issues/559 + Version 1.35.0 (2019-05-23) ========================== @@ -62,7 +166,7 @@ Cargo - [You can now set `cargo:rustc-cdylib-link-arg` at build time to pass custom linker arguments when building a `cdylib`.][cargo/6298] Its usage is highly platform specific. - + Misc ---- - [The Rust toolchain is now available natively for musl based distros.][58575] diff --git a/src/libstd/collections/hash/map.rs b/src/libstd/collections/hash/map.rs index 5a2fe2b244f55..2925d8362c8d9 100644 --- a/src/libstd/collections/hash/map.rs +++ b/src/libstd/collections/hash/map.rs @@ -2608,6 +2608,12 @@ mod test_map { use realstd::collections::CollectionAllocErr::*; use realstd::usize; + // https://github.com/rust-lang/rust/issues/62301 + fn _assert_hashmap_is_unwind_safe() { + fn assert_unwind_safe() {} + assert_unwind_safe::>>(); + } + #[test] fn test_zero_capacities() { type HM = HashMap; diff --git a/src/libstd/panic.rs b/src/libstd/panic.rs index 7a3b5d30500a9..1d4fd98dd754f 100644 --- a/src/libstd/panic.rs +++ b/src/libstd/panic.rs @@ -4,6 +4,7 @@ use crate::any::Any; use crate::cell::UnsafeCell; +use crate::collections; use crate::fmt; use crate::future::Future; use crate::pin::Pin; @@ -285,6 +286,11 @@ impl RefUnwindSafe for atomic::AtomicBool {} #[stable(feature = "unwind_safe_atomic_refs", since = "1.14.0")] impl RefUnwindSafe for atomic::AtomicPtr {} +// https://github.com/rust-lang/rust/issues/62301 +#[stable(feature = "hashbrown", since = "1.36.0")] +impl UnwindSafe for collections::HashMap + where K: UnwindSafe, V: UnwindSafe, S: UnwindSafe {} + #[stable(feature = "catch_unwind", since = "1.9.0")] impl Deref for AssertUnwindSafe { type Target = T;