Convert many files to intra-doc links
Helps with https://github.com/rust-lang/rust/issues/75080
r? @poliorcetics
I recommend reviewing one commit at a time, but the diff is small enough you can do it all at once if you like :)
Applied `#![deny(unsafe_op_in_unsafe_fn)]` in library/std/src/wasi
partial fix for #73904
There are still more that was not applied in [mod.rs]( 38fab2ea92/library/std/src/sys/wasi/mod.rs) and that is due to its using files from `../unsupported`
like:
```
#[path = "../unsupported/cmath.rs"]
pub mod cmath;
```
Update books
## reference
4 commits in 1b6c4b0afab97c0230433466c97167bbbe8445f6..25391dba46262f882fa846beefaff54a966a8fa5
2020-08-18 17:04:28 -0700 to 2020-09-02 07:22:55 -0700
- clarify when reading uninititalized memory is allowed (rust-lang-nursery/reference#852)
- Update patterns chapter, add rest patterns. (rust-lang-nursery/reference#876)
- Improve Type-Coersion Documentation (rust-lang-nursery/reference#843)
- Added variable back into example. (rust-lang-nursery/reference#880)
## book
3 commits in c0a6a61b8205da14ac955425f74258ffd8ee065d..e5ed97128302d5fa45dbac0e64426bc7649a558c
2020-08-14 14:21:49 -0500 to 2020-08-31 12:53:40 -0500
- Fix type mismatch in listing 10-5 (rust-lang/book#2441)
- Update ppendix-06-translation.md (rust-lang/book#2437)
- Correct no-listing-10-result-in-tests: Take tests module out of the main function (rust-lang/book#2430)
## rust-by-example
3 commits in 80a10e22140e28392b99d24ed02f4c6d8cb770a0..19f0a0372af497b34369cf182d9d16156cab2969
2020-08-08 09:56:46 -0300 to 2020-08-26 09:38:48 -0300
- prefer `length` over `size` when talking about number of elements vs. bytesize (rust-lang/rust-by-example#1372)
- Split out variable shadowing into a separate example (rust-lang/rust-by-example#1370)
- Update extern crate related sections (rust-lang/rust-by-example#1369)
## edition-guide
1 commits in bd6e4a9f59c5c1545f572266af77f5c7a5bad6d1..81f16863014de60b53de401d71ff904d163ee030
2020-07-12 17:37:08 -0500 to 2020-08-27 13:56:31 -0700
- Fix a small typo. (rust-lang/edition-guide#218)
inliner: Avoid query cycles when optimizing generators
The HIR Id trick is insufficient to prevent query cycles when optimizing
generators, since merely requesting a layout of a generator also
computes its `optimized_mir`.
Make no attempts to inline functions into generators within the same
crate to avoid query cycles.
Fixes#76181.
Fix typos in vec try_reserve(_exact) docs
`try_reserve` and `try_reserve_exact` docs refer to calling `reserve` and `reserve_exact`.
`try_reserve_exact` example uses `try_reserve` method instead of `try_reserve_exact`.
Move to intra-doc links for library/core/src/iter/traits/iterator.rs
Helps with #75080.
@jyn514 We're almost finished with this issue. Thanks for mentoring. If you have other topics to work on just let me know, I will be around in Discord.
@rustbot modify labels: T-doc, A-intra-doc-links
Known issues:
* Link from `core` to `std` (#74481):
[`OsStr`]
[`String`]
[`VecDeque<T>`]
Rename and expose LoopState as ControlFlow
Basic PR for #75744. Addresses everything there except for documentation; lots of examples are probably a good idea.
Make all methods of `std::net::Ipv4Addr` const
Make the following methods of `std::net::Ipv4Addr` unstable const under the `const_ipv4` feature:
- `octets`
- `is_loopback`
- `is_private`
- `is_link_local`
- `is_global` (unstable)
- `is_shared` (unstable)
- `is_ietf_protocol_assignment` (unstable)
- `is_benchmarking` (unstable)
- `is_reserved` (unstable)
- `is_multicast`
- `is_broadcast`
- `is_documentation`
- `to_ipv6_compatible`
- `to_ipv6_mapped`
This would make all methods of `Ipv6Addr` const.
Of these methods, `is_global`, `is_broadcast`, `to_ipv6_compatible`, and `to_ipv6_mapped` require a change in implementation.
Part of #76205
Add `[T; N]::as_[mut_]slice`
Part of me trying to populate arrays with a couple of basic useful methods, like slices already have. The ability to add methods to arrays were added in #75212. Tracking issue: #76118
This adds:
```rust
impl<T, const N: usize> [T; N] {
pub fn as_slice(&self) -> &[T];
pub fn as_mut_slice(&mut self) -> &mut [T];
}
```
These methods are like the ones on `std::array::FixedSizeArray` and in the crate `arraytools`.
Add a note for Ipv4Addr::to_ipv6_compatible
Previous discussion: #75019
> I think adding a comment saying "This isn't typically the method you want; these addresses don't typically function on modern systems. Use `to_ipv6_mapped` instead." would be a good first step, whether this method gets marked as deprecated or not.
_Originally posted by @joshtriplett in https://github.com/rust-lang/rust/pull/75150#issuecomment-680267745_
Avoid rehashing Fingerprint as a map key
This introduces a no-op `Unhasher` for map keys that are already hash-
like, for example `Fingerprint` and its wrapper `DefPathHash`. For these
we can directly produce the `u64` hash for maps. The first use of this
is `def_path_hash_to_def_id: Option<UnhashMap<DefPathHash, DefId>>`.
cc #56308
r? @eddyb
- Use intra-doc links for `std::io` in `std::fs`
- Use intra-doc links for File::read in unix/ext/fs.rs
- Remove explicit intra-doc links for `true` in `net/addr.rs`
- Use intra-doc links in alloc/src/sync.rs
- Use intra-doc links in src/ascii.rs
- Switch to intra-doc links in alloc/rc.rs
- Use intra-doc links in core/pin.rs
- Use intra-doc links in std/prelude
- Use shorter links in `std/fs.rs`
`io` is already in scope.
Improve recovery on malformed format call
The token following a format expression should be a comma. However, when it is replaced with a similar token (such as a dot), then the corresponding error is emitted, but the token is treated as a comma, and the parsing step continues.
r? @petrochenkov
flt2dec: properly handle uninitialized memory
The float-to-str code currently uses uninitialized memory incorrectly (see https://github.com/rust-lang/rust/issues/76092). This PR fixes that.
Specifically, that code used `&mut [T]` as "out references", but it would be incorrect for the caller to actually pass uninitialized memory. So the PR changes this to `&mut [MaybeUninit<T>]`, and then functions return a `&[T]` to the part of the buffer that they initialized (some functions already did that, indirectly via `&Formatted`, others were adjusted to return that buffer instead of just the initialized length).
What I particularly like about this is that it moves `unsafe` to the right place: previously, the outermost caller had to use `unsafe` to assert that things are initialized; now it is the functions that do the actual initializing which have the corresponding `unsafe` block when they call `MaybeUninit::slice_get_ref` (renamed in https://github.com/rust-lang/rust/pull/76217 to `slice_assume_init_ref`).
Reviewers please be aware that I have no idea how any of this code actually works. My changes were purely mechanical and type-driven. The test suite passes so I guess I didn't screw up badly...
Cc @sfackler this is somewhat related to your RFC, and possibly some of this code could benefit from (a generalized version of) the API you describe there. But for now I think what I did is "good enough".
Fixes https://github.com/rust-lang/rust/issues/76092.
`try_reserve` and `try_reserve_exact` docs refer to calling `reserve` and `reserve_exact`.
`try_reserve_exact` example uses `try_reserve` method instead of `try_reserve_exact`.
compiler: use `OnceCell` from std
Fixes#76192
The only remaining direct use of `lazy_static` crate is in `src/bootstrap` but I am not sure how I can remove that dependency for now.
r? @matklad
Rollup of 14 pull requests
Successful merges:
- #74880 (Add trailing comma support to matches macro)
- #76074 (Add new `-Z dump-mir-spanview` option)
- #76088 (Add more examples to lexicographic cmp on Iterators.)
- #76099 (Add info about `!` and `impl Trait`)
- #76126 (Use "Fira Sans" for crate list font)
- #76132 (Factor out StmtKind::MacCall fields into `MacCallStmt` struct)
- #76143 (Give a better error message for duplicate built-in macros)
- #76158 (Stabilise link-self-contained option)
- #76201 (Move to intra-doc links for library/core/src/panic.rs)
- #76206 (Make all methods of `std::net::Ipv6Addr` const)
- #76207 (# Move to intra-doc links for library/core/src/clone.rs)
- #76212 (Document lint missing_doc_code_examples is nightly-only)
- #76218 (lexer: Tiny improvement to shebang detection)
- #76221 (Clean up header in `iter` docs for `for` loops)
Failed merges:
r? @ghost
This introduces a no-op `Unhasher` for map keys that are already hash-
like, for example `Fingerprint` and its wrapper `DefPathHash`. For these
we can directly produce the `u64` hash for maps. The first use of this
is `def_path_hash_to_def_id: Option<UnhashMap<DefPathHash, DefId>>`.
