Stabilize #![feature(repr_align_enum)] in Rust 1.37.0
On an `enum` item, you may now write:
```rust
#[repr(align(X))]
enum Foo {
// ...
}
```
This has equivalent effects to first defining:
```rust
#[repr(align(X))]
struct AlignX<T>(T);
```
and then using `AlignX<Foo>` in `Foo`'s stead.
r? @nagisa
Update books
## reference
2 commits in 862b669c395822bb0938781d74f860e5762ad4fb..f8ae436d936f6f4891d3c1bbb1af5865eb8aeadb
2019-05-04 23:41:35 -0700 to 2019-05-31 14:59:12 +0200
- Document that literals with any suffixes are valid as tokens (rust-lang-nursery/reference#612)
- Fix example code of derive macro (rust-lang-nursery/reference#611)
## book
2 commits in 29fe982990e43b9367be0ff47abc82fb2123fd03..62a8c6f25fbd981c80a046f3b04be9684749af3b
2019-05-15 17:48:40 -0400 to 2019-05-28 15:48:23 -0400
- Remove snapshots checked in layout
- Remove snapshots that I've approved in layout
## rust-by-example
5 commits in 811c697b232c611ed754d279ed20643a0c4096f6..18566f4dedc3ef5bf61f5f85685d5966db99cc11
2019-04-28 18:56:42 -0300 to 2019-05-30 19:23:24 -0300
- Fixed wording in the `Seconds` struct description. (rust-lang/rust-by-example#1195)
- Fix usage of the word "elision" (rust-lang/rust-by-example#1191)
- Reword "Flow Control" to "Flow of Control" (rust-lang/rust-by-example#1190)
- Copy edits to chapter 1 (rust-lang/rust-by-example#1189)
- Fix typo in a mod/visibility.md (rust-lang/rust-by-example#1188)
## rustc-guide
9 commits in 3cb727b62b953d59b4360d39aa68b6dc8f157655..3ac9cfc9c9ab2e366feebf18718112737f572352
2019-05-07 09:53:32 -0500 to 2019-06-02 19:36:58 -0500
- Update information about debuginfo configuration
- fix long line
- Fixed misspelling
- Add more info subsection with links to forge and rustc api docs (rust-lang/rustc-guide#324)
- Renamed the file and title of the diagnostics chapter.
- Added rustc phases diagram and explanation
- Mention running tests for subdirectories
- Fixed links broken by merging chalks rules and solve
- Add documentation about profile-guided optimization.
## embedded-book
1 commits in 9858872bd1b7dbba5ec27dc30d34eba00acd7ef9..f0c75b75f9c18537b78f5d17c1015247e9a49c86
2019-05-02 18:56:54 +0000 to 2019-06-03 10:49:02 +0000
- Qemu md changes (rust-embedded/book#193)
Migrate some books to mdbook version 0.2
There are 3 books still using old version but they need more effort so I hope to do them in subsequent PR if I find the time.
implicit `Option`-returning doctests
This distinguishes `Option` and `Result`-returning doctests with implicit `main` method, where the former tests must end with `Some(())`.
Open question: Does this need a feature gate?
r? @GuillaumeGomez
lint: convert incoherent_fundamental_impls into hard error
*Summary for affected authors:* If your crate depends on one of the following crates, please upgrade to a newer version:
- gtk-rs: upgrade to at least 0.4
- rusqlite: upgrade to at least 0.14
- nalgebra: upgrade to at least 0.15, or the last patch version of 0.14
- spade: upgrade or refresh the Cargo.lock file to use version 1.7
- imageproc: upgrade to at least 0.16 (newer versions no longer use nalgebra)
implement #46205
r? @nikomatsakis
Update books
## nomicon
1 commits in fb29b147be4d9a1f8e24aba753a7e1de537abf61..c656171b749b7307f21371dd0d3278efee5573b8
2019-04-22 19:10:29 -0400 to 2019-04-25 15:31:26 -0400
- Lifetimes: Updates to incorporate NLL (rust-lang-nursery/nomicon#101)
## reference
5 commits in 2a2de9ce095979978ad7b582daecf94e4070b916..862b669c395822bb0938781d74f860e5762ad4fb
2019-04-22 10:25:52 -0700 to 2019-05-04 23:41:35 -0700
- Typo (rust-lang-nursery/reference#606)
- Added missing ? to Generics from InherentImpl and TraitImpl (rust-lang-nursery/reference#604)
- Add missing ( to ExternalFunctionItem (rust-lang-nursery/reference#603)
- Remove unneeded | from AssignmentExpression (rust-lang-nursery/reference#601)
- Remove unneeded ( from TypePathSegment (rust-lang-nursery/reference#602)
## book
6 commits in db919bc6bb9071566e9c4f05053672133eaac33e..29fe982990e43b9367be0ff47abc82fb2123fd03
2019-04-15 20:11:03 -0400 to 2019-05-15 17:48:40 -0400
- Ignore a non-compiling test listing and add code to fix a test listing
- Remove nostarch snapshots I've checked in layout
- Reword error messages to maybe not need to wrap lines in print
- This example doesn't compile but wasn't marked as such
- Update install instructions for VS 2019 (rust-lang/book#1923)
- Switch IRC to Discord
## rust-by-example
9 commits in 1ff0f8e018838a710ebc0cc1a7bf74ebe73ad9f1..811c697b232c611ed754d279ed20643a0c4096f6
2019-04-15 08:15:32 -0300 to 2019-04-28 18:56:42 -0300
- Fix typo in dsl.md (rust-lang/rust-by-example#1187)
- File read lines (rust-lang/rust-by-example#1186)
- For https://github.com/rust-lang/rust-by-example/issues/1184closesrust-lang/rust-by-example#1184 (rust-lang/rust-by-example#1185)
- Link to Reference for macro_rules designators (rust-lang/rust-by-example#1182)
- Improve section Meta/Docs (rust-lang/rust-by-example#1183)
- Small improvements to various files (rust-lang/rust-by-example#1173)
- 19.2 Vectors Error in Code Example (rust-lang/rust-by-example#1178)
- For https://github.com/rust-lang/rust-by-example/issues/1175 (rust-lang/rust-by-example#1176)
- For https://github.com/rust-lang/rust-by-example/issues/1179 (rust-lang/rust-by-example#1180)
## rustc-guide
12 commits in 99e1b1d53656be08654df399fc200584aebb50e4..3cb727b62b953d59b4360d39aa68b6dc8f157655
2019-04-20 09:57:54 -0500 to 2019-05-07 09:53:32 -0500
- Fix typo, 'which' repeated twice
- [canonicalization] fix result canonicalization example (rust-lang/rustc-guide#304)
- Rename to RUSTC_LOG
- Added mention of universal ctags
- Fix link in walkthrough
- Remove IRC from discussion chats
- Bring the updating LLVM guide up to date
- use nightly rust for ci
- Fixed broken chalk links
- Add documentation for two-phase borrows
- Explain new powers of the `treat-err-as-bug` flag
- Update lowering-module test case
## edition-guide
3 commits in c413d42a207bd082f801ec0137c31b71e4bfed4c..581c6cccfaf995394ea9dcac362dc8e731c18558
2019-04-22 01:14:56 +0200 to 2019-05-06 12:47:44 -0700
- Fix typo in controlling-panics-with-std-panic.md (rust-lang-nursery/edition-guide#158)
- Fix links for book editions. (rust-lang-nursery/edition-guide#149)
- Update now that NLL is enabled in 2015. (rust-lang-nursery/edition-guide#157)
## embedded-book
3 commits in de3d55f521e657863df45260ebbca1b10527f662..9858872bd1b7dbba5ec27dc30d34eba00acd7ef9
2019-04-22 12:58:28 +0000 to 2019-05-02 18:56:54 +0000
- Update linux.md (rust-embedded/book#167)
- Clarify list of available targets for installation (rust-embedded/book#165)
- minor grammar fix (rust-embedded/book#188)
Document the `html_root_url` doc attribute value.
I'm not sure if this was intentionally not documented, but I think it would be good to include. This was added in #9691. `--extern-html-root-url` is unstable, but I don't think it hurts to mention it.
Exclude some copies of old book editions from search engines
These are only stubs that confuse search engine users. There's no useful content in these locations.
Document the -Z flag to the rustc book
# Description
Changes:
- Added new documentation on the `-Z` flag of rustc in the command-line arguments section of the rustc book.
If I need to rephrase anything or if you have any improvements, please let me know! I deliberately did not create an exhaustive list of all options since they are likely to change over time and per toolchain version.
closes#41142
Introduce RefCell::try_borrow_unguarded
*Come sit next to the fireplace with me, this is going to be a long story.*
So, you may already be aware that Servo has weird design constraints that forces us developers working on it to do weird things. The thing that interests us today is that we do layout on a separate thread with its own thread pool to do some things in parallel, whereas the data it uses comes from the script thread, which implements the entire DOM and related pieces, with `!Sync` data types such as `RefCell<T>`.
The invariant we maintain is that script does not do anything ever with the DOM data as long as layout is doing its job. That's all nice and all, but one thing we don't ensure is that we don't actually know if script was currently mutably borrowing some `RefCell<T>` prior to starting layout, which may lead to aliasing mutable memory and obviously undefined behaviour.
This PR reinstates `RefCell::borrow_state` so that [this method](https://github.com/servo/servo/blob/master/components/script/dom/bindings/cell.rs#L23-L30) can make use of it and return `None` if the cell was mutably borrowed.
Cc @SimonSapin
