Commit Graph

2113 Commits

Author SHA1 Message Date
Ivan Tham
2d4cfd0779 Add while loop keyword to see also
Suggested by withoutboats
2020-11-26 01:05:20 +08:00
Ivan Tham
6b272e0231
Fix typo in keyword link
Co-authored-by: Camelid <camelidcamel@gmail.com>
2020-11-25 11:11:25 +08:00
Ivan Tham
872b5cd80a Link loop/for keyword 2020-11-25 11:00:40 +08:00
Jonas Schievink
ce197961ac
Rollup merge of #79358 - ssomers:btree_public_comments, r=Mark-Simulacrum
BTreeMap/BTreeSet: make public doc more consistent

Tweaks #72876 and #73667 and propagate them to `BTreeSet`.
2020-11-24 13:17:47 +01:00
Jonas Schievink
012d5fd8d7
Rollup merge of #79354 - ssomers:btree_bereave_BoxedNode, r=Mark-Simulacrum
BTreeMap: cut out the ceremony around BoxedNode

The opposite direction of #79093.

r? ``@Mark-Simulacrum``
2020-11-24 13:17:45 +01:00
Jonas Schievink
ed5d539c62
Rollup merge of #79351 - Takashiidobe:keyword-docs-typo, r=m-ou-se
Fix typo in `keyword` docs for traits

This PR fixes a small typo in the `keyword_docs.rs` file, describing the differences between the 2015 and 2018 editions of traits.
2020-11-24 13:17:43 +01:00
bors
4167d731dc Auto merge of #78953 - mzohreva:mz/from_raw_fd, r=Mark-Simulacrum
Add Metadata in std::os::fortanix_sgx::io::FromRawFd

Needed for https://github.com/fortanix/rust-sgx/pull/291

cc `@jethrogb`
2020-11-24 03:12:20 +00:00
bors
cb5b87133a Auto merge of #78636 - dtolnay:puncteq, r=petrochenkov
Add PartialEq<char> for proc_macro::Punct

`punct.as_char() == '░'` is pervasive when parsing anything involving punct. I think `punct == '░'` is sufficiently unambiguous that it makes sense to provide the impl.

1899c489d4/library/proc_macro/src/quote.rs (L79)
1899c489d4/library/proc_macro/src/quote.rs (L83)
1899c489d4/src/test/ui/suggestions/auxiliary/issue-61963.rs (L26)
1899c489d4/src/test/ui/proc-macro/auxiliary/three-equals.rs (L23)
2020-11-24 00:30:25 +00:00
bors
f32a0cce2f Auto merge of #78343 - camelid:macros-qualify-panic, r=m-ou-se
Qualify `panic!` as `core::panic!` in non-built-in `core` macros

Fixes #78333.

-----

Otherwise code like this

    #![no_implicit_prelude]

    fn main() {
        ::std::todo!();
        ::std::unimplemented!();
    }

will fail to compile, which is unfortunate and presumably unintended.

This changes many invocations of `panic!` in a `macro_rules!` definition
to invocations of `$crate::panic!`, which makes the invocations hygienic.

Note that this does not make the built-in macro `assert!` hygienic.
2020-11-23 22:05:28 +00:00
Camelid
d8b1d51b95 Clean up core macros documentation
* Switch a couple links over to intra-doc links
* Clean up some formatting/typography
2020-11-23 11:28:25 -08:00
Camelid
d37e1e186e Qualify panic! as core::panic! in non-built-in core macros
Otherwise code like this

    #![no_implicit_prelude]

    fn main() {
        ::std::todo!();
        ::std::unimplemented!();
    }

will fail to compile, which is unfortunate and presumably unintended.

This changes many invocations of `panic!` in a `macro_rules!` definition
to invocations of `$crate::panic!`, which makes the invocations hygienic.

Note that this does not make the built-in macro `assert!` hygienic.
2020-11-23 11:28:25 -08:00
bors
d9a105fdd4 Auto merge of #78439 - lzutao:rm-clouldabi, r=Mark-Simulacrum
Drop support for all cloudabi targets

`cloudabi` is a tier-3 target, and [it is no longer being maintained upstream][no].

This PR drops supports for cloudabi targets. Those targets are:
* aarch64-unknown-cloudabi
* armv7-unknown-cloudabi
* i686-unknown-cloudabi
* x86_64-unknown-cloudabi

Since this drops supports for a target, I'd like somebody to tag `relnotes` label to this PR.

Some other issues:
* The tidy exception for `cloudabi` crate is still remained because
  * `parking_lot v0.9.0` and `parking_lot v0.10.2` depends on `cloudabi v0.0.3`.
  * `parking_lot v0.11.0` depends on `cloudabi v0.1.0`.

[no]: https://github.com/NuxiNL/cloudabi#note-this-project-is-unmaintained
2020-11-23 19:01:19 +00:00
Stein Somers
9c8db454af BTreeMap/BTreeSet: make public doc more consistent 2020-11-23 19:10:02 +01:00
bors
40624dde6c Auto merge of #79345 - jonas-schievink:rollup-1yhhzx9, r=jonas-schievink
Rollup of 10 pull requests

Successful merges:

 - #76829 (stabilize const_int_pow)
 - #79080 (MIR visitor: Don't treat debuginfo field access as a use of the struct)
 - #79236 (const_generics: assert resolve hack causes an error)
 - #79287 (Allow using generic trait methods in `const fn`)
 - #79324 (Use Option::and_then instead of open-coding it)
 - #79325 (Reduce boilerplate with the `?` operator)
 - #79330 (Fix typo in comment)
 - #79333 (doc typo)
 - #79337 (Use Option::map instead of open coding it)
 - #79343 (Add my (`@flip1995)` work mail to the mailmap)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2020-11-23 16:33:03 +00:00
Stein Somers
8526c313c1 BTreeMap: cut out the ceremony around BoxedNode 2020-11-23 17:02:08 +01:00
takashiidobe
c5c3d7bdf4 Fix typo in keyword docs for traits 2020-11-23 10:51:30 -05:00
Jonas Schievink
a0cf162329
Rollup merge of #79333 - o752d:patch-3, r=Mark-Simulacrum
doc typo

plus a small edit for clarity
2020-11-23 15:25:51 +01:00
Jonas Schievink
703f176d57
Rollup merge of #76829 - tspiteri:const-int-pow, r=oli-obk
stabilize const_int_pow

This also requires stabilizing constctlz for const ctlz_nonzero.
2020-11-23 15:25:38 +01:00
bors
40cf72108e Auto merge of #79186 - JulianKnodt:str_from, r=Mark-Simulacrum
Change slice::to_vec to not use extend_from_slice

I saw this [Zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/String.3A.3Afrom%28.26str%29.20wonky.20codegen/near/216164455), and didn't see any update from it, so I thought I'd try to fix it. This converts `to_vec` to no longer use `extend_from_slice`, but relies on knowing that the allocated capacity is the same size as the input.

[Godbolt new v1](https://rust.godbolt.org/z/1bcWKG)
[Godbolt new v2 w/ drop guard](https://rust.godbolt.org/z/5jn76K)
[Godbolt old version](https://rust.godbolt.org/z/e4ePav)

After some amount of iteration, there are now two specializations for `to_vec`, one for `Copy` types that use memcpy, and one for clone types which is the original from this PR.

This is then used inside of `impl<T: Clone> FromIterator<Iter::Slice<T>> for Vec<T>` which is essentially equivalent to `&[T] -> Vec<T>`, instead of previous specialization of the `extend` function. This is because extend has to reason more about existing capacity by calling `reserve` on an existing vec, and thus produces worse asm.

Downsides: This allocates the exact capacity, so I think if many items are added to this `Vec` after, it might need to allocate whereas extending may not. I also noticed the number of faults went up in the benchmarks, but not sure where from exactly.
2020-11-23 14:20:22 +00:00
bors
068320b39e Auto merge of #77893 - petertodd:2020-impl-default-for-phantompinned, r=dtolnay
Impl Default for PhantomPinned

`PhantomPinned` is just a marker type, with an obvious default value (the only value). So I can't think of a reason not to do this. Sure, it's used in exotic situations with unsafe code. But the people writing that code can decide for themselves if they can derive `Default`, and in many situations the derived impl will make sense:

```rust
#[derive(Default)]
struct NeedsPin {
   marker: PhantomPinned,
   buf: [u8; 1024],
   ptr_to_data: Option<*const u8>,
}
```
2020-11-23 07:00:30 +00:00
bors
1823a87986 Auto merge of #76226 - CDirkx:const-ipaddr, r=dtolnay
Stabilize `IpAddr::is_ipv4` and `is_ipv6` as const

Insta-stabilize the methods `is_ipv4` and `is_ipv6` of `std::net::IpAddr` as const, in the same way as [PR#76198](https://github.com/rust-lang/rust/pull/76198).

Possible because of the recent stabilization of const control flow.

Part of #76225 and #76205.
2020-11-23 04:47:25 +00:00
oliver
a804e38dde
doc typo
plus a small edit for clarity
2020-11-23 02:47:45 +00:00
bors
f32459c7ba Auto merge of #79172 - a1phyr:cold_abort, r=Mark-Simulacrum
Add #[cold] attribute to `std::process::abort` and `alloc::alloc::handle_alloc_error`
2020-11-23 02:25:13 +00:00
Trevor Spiteri
a6bcf7a2b6 const_int_pow will be stabilized in 1.50.0, not in 1.49.0
Same for constctlz.
2020-11-23 02:04:37 +01:00
Trevor Spiteri
aca37b65f1 stabilize const_int_pow
Also stabilize constctlz for const ctlz_nonzero.

The public methods stabilized const by this commit are:

  * `{i*,u*}::checked_pow`
  * `{i*,u*}::saturating_pow`
  * `{i*,u*}::wrapping_pow`
  * `{i*,u*}::overflowing_pow`
  * `{i*,u*}::pow`
  * `u*::next_power_of_two`
  * `u*::checked_next_power_of_two`
  * `u*::wrapping_next_power_of_two` (the method itself is still unstable)
2020-11-23 01:58:27 +01:00
Christiaan Dirkx
4613bc96a4 Bump version to 1.50.0 2020-11-23 01:40:26 +01:00
Christiaan Dirkx
3f8fdf83ff Stabilize IpAddr::is_ipv4 and is_ipv6 as const
Insta-stabilize the methods `is_ipv4` and `is_ipv6` of `IpAddr`.

Possible because of the recent stabilization of const control flow.

Also adds a test for these methods in a const context.
2020-11-23 01:33:46 +01:00
bors
32da90b431 Auto merge of #79319 - m-ou-se:rollup-d9n5viq, r=m-ou-se
Rollup of 10 pull requests

Successful merges:

 - #76941 (Add f{32,64}::is_subnormal)
 - #77697 (Split each iterator adapter and source into individual modules)
 - #78305 (Stabilize alloc::Layout const functions)
 - #78608 (Stabilize refcell_take)
 - #78793 (Clean up `StructuralEq` docs)
 - #79267 (BTreeMap: address namespace conflicts)
 - #79293 (Add test for eval order for a+=b)
 - #79295 (BTreeMap: fix minor testing mistakes in #78903)
 - #79297 (BTreeMap: swap the names of NodeRef::new and Root::new_leaf)
 - #79299 (Stabilise `then`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2020-11-22 23:59:48 +00:00
kadmin
a9915581d7 Change slice::to_vec to not use extend_from_slice
This also required adding a loop guard in case clone panics

Add specialization for copy

There is a better version for copy, so I've added specialization for that function
and hopefully that should speed it up even more.

Switch FromIter<slice::Iter> to use `to_vec`

Test different unrolling version for to_vec

Revert to impl

From benchmarking, it appears this version is faster
2020-11-22 22:22:03 +00:00
Lzu Tao
6bfe27a3e0 Drop support for cloudabi targets 2020-11-22 17:11:41 -05:00
Mara Bos
41c033b2f7
Rollup merge of #79299 - varkor:stabilise-then, r=m-ou-se
Stabilise `then`

Stabilises the lazy variant of https://github.com/rust-lang/rust/issues/64260 now that the FCP [has ended](https://github.com/rust-lang/rust/issues/64260#issuecomment-731636203).

I've kept the original feature gate `bool_to_option` for the strict variant (`then_some`), and created a new insta-stable feature gate `lazy_bool_to_option` for `then`.
2020-11-22 23:01:08 +01:00
Mara Bos
d39e095331
Rollup merge of #79297 - ssomers:btree_post_redux, r=Mark-Simulacrum
BTreeMap: swap the names of NodeRef::new and Root::new_leaf

#78104 preserved the name of Root::new_leaf to minimize changes, but the resulting names are confusing.

r? `@Mark-Simulacrum`
2020-11-22 23:01:07 +01:00
Mara Bos
b54838f960
Rollup merge of #79295 - ssomers:btree_fix_78903, r=Mark-Simulacrum
BTreeMap: fix minor testing mistakes in #78903

Mostly a duplicate test case
r? `@Mark-Simulacrum`
2020-11-22 23:01:05 +01:00
Mara Bos
5793fa9cda
Rollup merge of #79267 - ssomers:btree_namespaces, r=Mark-Simulacrum
BTreeMap: address namespace conflicts

Fix an annoyance popping up whenever synchronizing the test cases with a version capable of miri-track-raw-pointers.

r? `@Mark-Simulacrum`
2020-11-22 23:01:02 +01:00
Mara Bos
8a623e6f98
Rollup merge of #78793 - camelid:fixup-structuraleq, r=jyn514
Clean up `StructuralEq` docs
2020-11-22 23:01:00 +01:00
Mara Bos
b249844c33
Rollup merge of #78608 - ThinkChaos:stabilize_refcell_take, r=m-ou-se
Stabilize refcell_take

Tracking Issue: #71395

``@KodrAus`` nominated this for FCP, so here's a PR!
I've never made a stabilization PR, so please mention if there's anything I can improve, thanks.
2020-11-22 23:00:58 +01:00
Mara Bos
186ec64947
Rollup merge of #78305 - ChrisDenton:const-layout, r=oli-obk
Stabilize alloc::Layout const functions

Stabilizes #67521. In particular the following stable methods are stabilized as `const fn`:

* `size`
* `align`
* `from_size_align`

Stabilizing `size` and `align` should not be controversial as they are simple (usize and NonZeroUsize) fields and I don't think there's any reason to make them not const compatible in the future. That being true, the other methods are trivially `const`. The only other issue being returning a `Result` from a `const fn` but this has been made more usable by recent stabilizations.
2020-11-22 23:00:56 +01:00
Mara Bos
4407049fcb
Rollup merge of #77697 - WaffleLapkin:iter_split_adaptors, r=m-ou-se
Split each iterator adapter and source into individual modules

This PR creates individual modules for each iterator adapter and iterator source.

This is done to enhance the readability of corresponding modules (`adapters/mod.rs` and `sources.rs`) which were hard to navigate and read because of lots of repeated lines (e.g.: `adapters/mod.rs` was 3k lines long). This is also in line with some adapters which already had their own modules (`Flatten`, `FlatMap`, `Chain`, `Zip`, `Fuse`).

This PR also makes `Take`s adapter fields private (I have no idea why they were `pub(super)` before).

r? ``@LukasKalbertodt``
2020-11-22 23:00:55 +01:00
Mara Bos
9b98f1d226
Rollup merge of #76941 - clarfonthey:is_subnormal, r=m-ou-se
Add f{32,64}::is_subnormal

The docs recommend that you use dedicated methods instead of calling `classify` directly, although there isn't actually a way of checking if a number is subnormal without calling classify. There are dedicated methods for all other forms, excluding `is_zero` (which is just `== 0.0` anyway).
2020-11-22 23:00:48 +01:00
Chris Denton
9050d12714
Stabilize alloc::Layout const functions
Stabilizes #67521. In particular the following stable methods are stabilized as const fn:

* size
* align
* from_size_align
2020-11-22 21:43:30 +00:00
bors
a0d664bae6 Auto merge of #79219 - shepmaster:beta-bump, r=Mark-Simulacrum
Bump bootstrap compiler version

r? `@Mark-Simulacrum`

/cc `@pietroalbini`
2020-11-22 21:38:03 +00:00
ltdk
cf26f2f00e Add f{32,64}::is_subnormal 2020-11-22 15:37:46 -05:00
ThinkChaos
5c6689baff Stabilize refcell_take 2020-11-22 20:13:31 +01:00
varkor
cf32afcf48 Stabilise then 2020-11-22 13:45:14 +00:00
bors
828461b4b2 Auto merge of #78816 - SkiFire13:fix-slice-pointer-provenance, r=RalfJung
<[T]>::reverse: Fix pointer provenance rules

Should fix #78749
2020-11-22 13:10:15 +00:00
Stein Somers
b04abc433e BTreeMap: swap the names of NodeRef::new and Root::new_leaf 2020-11-22 13:40:03 +01:00
Stein Somers
9186c073fc BTreeMap: fix minor testing mistakes in #78903 2020-11-22 13:37:39 +01:00
bors
5d5ff84130 Auto merge of #77872 - Xaeroxe:stabilize-clamp, r=scottmcm
Stabilize clamp

Tracking issue: https://github.com/rust-lang/rust/issues/44095

Clamp has been merged and unstable for about a year and a half now. How do we feel about stabilizing this?
2020-11-22 10:50:04 +00:00
bors
20328b5323 Auto merge of #79275 - integer32llc:doc-style, r=jonas-schievink
More consistently use spaces after commas in lists in docs

This PR changes instances of lists that didn't use spaces after commas, like `vec![1,2,3]`, to `vec![1, 2, 3]` to be more consistent with idiomatic Rust style (the way these were looks strange to me, especially because there are often lists that *do* use spaces after the commas later in the same code block 😬).

I noticed one of these in an example in the stdlib docs and went looking for more, but as far as I can see, I'm only changing those spots in user-facing documentation or rustc output, and the changes make no semantic difference.
2020-11-22 08:30:23 +00:00
bors
8ca930aa26 Auto merge of #79229 - sdroege:slice-fill-memset, r=dtolnay
Add "memset" as doc alias to slice::fill()

Similar to 53f969dfd1 and should make it easier for people coming from C to find this function.
2020-11-22 04:27:03 +00:00