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.
Swap order of `unsafe async fn` to `async unsafe fn`
Change the order of `unsafe async fn` to `async unsafe fn`.
I had intended to do this a while back but didn't get around to it...
This should be done because:
- It is the order used by `const unsafe fn` so therefore it is consistent.
- This keeps all the "effect/restriction" modifiers to the left of `unsafe` (which according to some is not an effect) instead of mixing them such that we are more forward compatible with some sort of effect system.
r? @cramertj
Speed up Azure CI installing Windows dependencies
There is known issue where PowerShell is unreasonably slow downloading
files due to an issue with rendering the progress bar, see this [issue](https://github.com/PowerShell/PowerShell/issues/2138)
That issue is fixed in PowerShell Core (available in Azure Pipelines as
pwsh.exe) but it can also be worked around by setting:
$ProgressPreference = 'SilentlyContinue'
I measured downloading LLVM and it took about 220s before, 5s after, so the improvement is significant.
error: remove StringError from Debug output
Seeing `StringError("something something")` in debug output can cause
someone to think there was an error dealing with `String`s, not that the
error type is just a string. So, remove that noise.
For example:
```
io error: Custom { kind: InvalidData, error: StringError("corrupt data") }
```
With this change:
```
io error: Custom { kind: InvalidData, error: "corrupt data" }
```
ci: Favor SCRIPT instead of RUST_CHECK_TARGET
Since #61212 we've been timing out on OSX, and this looks to be because
we're building tools like Cargo and the RLS twice instead of once. This
turns out to be a slight bug in our configuration. CI builders using the
`RUST_CHECK_TARGET` directive actually execute `make all` just before
their acual target. In `make all` we're building a stage2 cargo, and
then in `make dist` we're building a stage1 cargo.
Other builders use `SCRIPT` which provides explicit control over what
`x.py` script, for example, is used to execute the build. This moves
almost all targets to using `SCRIPT` to ensure that we're explicitly
specifying what's being built where. Additionally this updates the logic
of `RUST_CHECK_TARGET` to remove the pre-flight tidy as well as the
pre-flight `make all`. The system LLVM builder (run on PRs) now
explicitly runs tidy first and then runs the rest of the test suite.
Avoid `hygiene_data` lookups
These commits mostly introduce compound operations that allow two close adjacent `hygiene_data` lookups to be combined.
r? @petrochenkov
Since #61212 we've been timing out on OSX, and this looks to be because
we're building tools like Cargo and the RLS twice instead of once. This
turns out to be a slight bug in our configuration. CI builders using the
`RUST_CHECK_TARGET` directive actually execute `make all` just before
their acual target. In `make all` we're building a stage2 cargo, and
then in `make dist` we're building a stage1 cargo.
Other builders use `SCRIPT` which provides explicit control over what
`x.py` script, for example, is used to execute the build. This moves
almost all targets to using `SCRIPT` to ensure that we're explicitly
specifying what's being built where. Additionally this updates the logic
of `RUST_CHECK_TARGET` to remove the pre-flight tidy as well as the
pre-flight `make all`. The system LLVM builder (run on PRs) now
explicitly runs tidy first and then runs the rest of the test suite.
Rollup of 11 pull requests
Successful merges:
- #60802 (upgrade rustdoc's `pulldown-cmark` to 0.5.2)
- #60839 (Fix ICE with struct ctors and const generics.)
- #60850 (Stabilize RefCell::try_borrow_unguarded)
- #61231 (Fix linkage diagnostic so it doesn't ICE for external crates)
- #61244 (Box::into_vec: use Box::into_raw instead of mem::forget)
- #61279 (implicit `Option`-returning doctests)
- #61280 (Revert "Disable solaris target since toolchain no longer builds")
- #61284 (Update all s3 URLs used on CI with subdomains)
- #61321 (libsyntax: introduce 'fn is_keyword_ahead(dist, keywords)'.)
- #61322 (ci: display more debug information in the init_repo script)
- #61333 (Fix ICE with APIT in a function with a const parameter)
Failed merges:
- #61304 (Speed up Azure CI installing Windows dependencies)
r? @ghost
libsyntax: introduce 'fn is_keyword_ahead(dist, keywords)'.
Introduces:
```rust
/// Returns whether any of the given keywords are `dist` tokens ahead of the current one.
fn is_keyword_ahead(&self, dist: usize, kws: &[Symbol]) -> bool {
self.look_ahead(dist, |t| kws.iter().any(|&kw| t.is_keyword(kw)))
}
```
r? @oli-obk
Update all s3 URLs used on CI with subdomains
Ensure that they're all forwards-compatible with AWS updates happening
next year by ensuring the bucket name shows up in the domain name.
Closes#61168
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
Box::into_vec: use Box::into_raw instead of mem::forget
`Box::into_raw` does, in one step, turn the `Box` into a raw ptr and avoid deallocation. Seems cleaner than separating the two.
Also, `mem::forget` gets the `Box` with a `noalias` argument, but it is not actually correct that this is an exclusive pointer. So a stricter version of Stacked Borrows would complain here. (I can't actually make Stacked Borrows that strict yet though due to other issues.)
Fix linkage diagnostic so it doesn't ICE for external crates
Fix linkage diagnostic so it doesn't ICE for external crates
(As a drive-by improvement, improved the diagnostic to indicate *why* `*const T` or `*mut T` is required.)
Fix#59548Fix#61232
Emit error when trying to use PGO in conjunction with unwinding on Windows.
This PR makes `rustc` emit an error when trying use PGO in conjunction with `-Cpanic=unwind` on Windows, isn't supported by LLVM yet. The error messages points to https://github.com/rust-lang/rust/issues/61002, which documents this known limitation.
ci: Attempt to skip a full rustc compile on dist*
Currently when we're preparing cross-compiled compilers it can take
quite some time because we have to build the compiler itself three
different times. The first is the normal bootstrap, the second is a
second build for the build platform, and the third is the actual target
architecture compiler. The second compiler was historically built
exclusively for procedural macros, and long ago we didn't actually need
it.
This commit tries out avoiding that second compiled compiler, meaning we
only compile rustc for the build platform only once. Some local testing
shows that this is promising, but bors is of course the ultimate test!
It's a hot function that returns a 2-tuple, but the hottest call site
(`hygienic_eq`) discards the second element.
This commit renames `adjust_ident` as `adjust_ident_and_get_scope`, and
then introduces a new `adjust_ident` that only computes the first
element. This change also avoids the need to pass in an unused
`DUMMY_HIR_ID` argument in a couple of places, which is nice.
Warn on bare_trait_objects by default
The `bare_trait_objects` lint is set to `warn` by default.
Most ui tests have been updated to use `dyn` to avoid creating noise in stderr files.
r? @Centril
cc #54910
