mirror of
https://github.com/rust-lang/rust
synced 2024-07-20 09:56:07 +00:00
Updated RELEASES.md for 1.33.0
This commit is contained in:
Aaron Power
parent
b139669f37
commit
50be479475
126
RELEASES.md
126
RELEASES.md
|
|
@ -1,3 +1,129 @@
|
|||
Version 1.33.0 (2019-02-28)
|
||||
==========================
|
||||
|
||||
Language
|
||||
--------
|
||||
- [You can now use the `cfg(target_vendor)` attribute.][57465] E.g.
|
||||
`#[cfg(target_vendor="linux")] fn main() { println!("Hello Linux!"); }`
|
||||
- [You can now have multiple patterns in `if let` and `while let`
|
||||
expressions.][57532] You can do this with the same syntax as a `match`
|
||||
expression. E.g.
|
||||
```rust
|
||||
enum Creature {
|
||||
Crab(String),
|
||||
Person(String),
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let state = Creature::Crab("Ferrous");
|
||||
|
||||
if let Creature::Crab(name) | Creature::Person(name) {
|
||||
println!("This creature's name is: {}", name);
|
||||
}
|
||||
}
|
||||
```
|
||||
- [You can now have irrefutable `if let` and `while let` patterns.][57535] Using
|
||||
this feature will by default produce a warning as this behaviour can be
|
||||
unintuitive. E.g. `if let _ = 5 {}`
|
||||
- [You can now use `let` bindings and pattern destructurcting in
|
||||
constant functions.][57175]
|
||||
- [You can now specify multiple attributes in a `cfg_attr` attribute.][57332]
|
||||
E.g. `#[cfg_attr(all(), must_use, optimize)]`
|
||||
- [You can now specify a specific alignment with the `#[repr(packed)]`
|
||||
attribute.][57049] E.g. `#[repr(packed(2))] struct Foo(i16, i32);` is a struct
|
||||
with an alignment of 2 bytes and a size of 6 bytes.
|
||||
- [You can now call unsafe constant functions.][57067] E.g.
|
||||
```rust
|
||||
unsafe const fn foo() -> i32 { 5 }
|
||||
const fn bar() -> i32 {
|
||||
unsafe { foo() }
|
||||
}
|
||||
```
|
||||
- [You can now import an item from a module as a `_`.][56303] This allows you to
|
||||
import a trait's impls, and not have the name in the namespace. E.g.
|
||||
```rust
|
||||
use std::io::Read as _;
|
||||
|
||||
// Allowed as there is only one `Read` in the module.
|
||||
pub trait Read {}
|
||||
```
|
||||
- [`extern` functions will now abort by default when panicking.][55982]
|
||||
|
||||
Compiler
|
||||
--------
|
||||
- [You can now set a linker flavor for `rustc` with the `-Clinker-flavor`
|
||||
command line argument.][56351]
|
||||
- [The mininum required LLVM version has been bumped to 6.0.][56642]
|
||||
- [Added support for the PowerPC64 architecture on FreeBSD.][57615]
|
||||
- [The `x86_64-fortanix-unknown-sgx` target support has been upgraded to
|
||||
tier 2 support.][57130] Visit the [platform support] page for information on
|
||||
Rust's platform support.
|
||||
- [Added support for the `thumbv7neon-linux-androideabi` and
|
||||
`thumbv7neon-unknown-linux-gnueabihf` targets.][56947]
|
||||
- [Added support for the `x86_64-unknown-uefi` target.][56769]
|
||||
|
||||
Libraries
|
||||
---------
|
||||
- [The functions `overflowing_{add, sub, mul, shl, shr}` are now constant
|
||||
functions for all numeric types.][57566]
|
||||
- [The `get` method for all `NonZero` types is now constant.][57167]
|
||||
- [The functions `count_ones`, `count_zeros`, `leading_zeros`, `trailing_zeros`,
|
||||
`swap_bytes`, `from_be`, `from_le`, `to_be`, `to_le` are now constant for all
|
||||
numeric types.][57234]
|
||||
- [`Ipv4Addr::new` is now a constant function][57234]
|
||||
|
||||
Stabilized APIs
|
||||
---------------
|
||||
- [`unix::FileExt::read_exact_at`]
|
||||
- [`unix::FileExt::write_exact_at`]
|
||||
- [`Option::transpose`]
|
||||
- [`Result::transpose`]
|
||||
- [`convert::identity`]
|
||||
- [`pin::Pin`]
|
||||
- [`Vec::resize_with`]
|
||||
- [`VecDeque::resize_with`]
|
||||
- [`Duration::as_millis`]
|
||||
- [`Duration::as_micros`]
|
||||
- [`Duration::as_nanos`]
|
||||
|
||||
Cargo
|
||||
-----
|
||||
- [Cargo should now rebuild a crate if a file was modified during the initial
|
||||
build.][cargo/6484]
|
||||
|
||||
|
||||
[57615]: https://github.com/rust-lang/rust/pull/57615/
|
||||
[57465]: https://github.com/rust-lang/rust/pull/57465/
|
||||
[57532]: https://github.com/rust-lang/rust/pull/57532/
|
||||
[57535]: https://github.com/rust-lang/rust/pull/57535/
|
||||
[57566]: https://github.com/rust-lang/rust/pull/57566/
|
||||
[57130]: https://github.com/rust-lang/rust/pull/57130/
|
||||
[57167]: https://github.com/rust-lang/rust/pull/57167/
|
||||
[57175]: https://github.com/rust-lang/rust/pull/57175/
|
||||
[57234]: https://github.com/rust-lang/rust/pull/57234/
|
||||
[57332]: https://github.com/rust-lang/rust/pull/57332/
|
||||
[56947]: https://github.com/rust-lang/rust/pull/56947/
|
||||
[57049]: https://github.com/rust-lang/rust/pull/57049/
|
||||
[57067]: https://github.com/rust-lang/rust/pull/57067/
|
||||
[56769]: https://github.com/rust-lang/rust/pull/56769/
|
||||
[56642]: https://github.com/rust-lang/rust/pull/56642/
|
||||
[56303]: https://github.com/rust-lang/rust/pull/56303/
|
||||
[56351]: https://github.com/rust-lang/rust/pull/56351/
|
||||
[55982]: https://github.com/rust-lang/rust/pull/55982/
|
||||
[cargo/6484]: https://github.com/rust-lang/cargo/pull/6484/
|
||||
[`unix::FileExt::read_exact_at`]: https://doc.rust-lang.org/std/os/unix/fs/trait.FileExt.html#read_exact_at
|
||||
[`unix::FileExt::write_exact_at`]: https://doc.rust-lang.org/std/os/unix/fs/trait.FileExt.html#write_exact_at
|
||||
[`Option::transpose`]: https://doc.rust-lang.org/std/option/enum.Option.html#transpose
|
||||
[`Result::transpose`]: https://doc.rust-lang.org/std/result/enum.Result.html#transpose
|
||||
[`convert::identity`]: https://doc.rust-lang.org/std/convert/fn.identity.html
|
||||
[`pin::Pin`]: https://doc.rust-lang.org/std/pin/struct.Pin.html
|
||||
[`Vec::resize_with`]: https://doc.rust-lang.org/std/vec/struct.Vec.html#resize_with
|
||||
[`VecDeque::resize_with`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html#resize_with
|
||||
[`Duration::as_millis`]: https://doc.rust-lang.org/std/time/struct.Duration.html#as_millis
|
||||
[`Duration::as_micros`]: https://doc.rust-lang.org/std/time/struct.Duration.html#as_micros
|
||||
[`Duration::as_nanos`]: https://doc.rust-lang.org/std/time/struct.Duration.html#as_millis
|
||||
|
||||
|
||||
Version 1.32.0 (2019-01-17)
|
||||
==========================
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue