- Create `config.toml` last. It's the most likely to error, and used to stop later steps from executing
- Don't print an error message + exit if the git hook already exists; that's expected
Before, the submodule handling was very jank and would update *between two interactive prompts*:
```
; x setup
Building rustbuild
Finished dev [unoptimized] target(s) in 0.05s
Welcome to the Rust project! What do you want to do with x.py?
a) library: Contribute to the standard library
Please choose one (a/b/c/d/e): a
Updating submodule library/backtrace
Submodule 'library/backtrace' (https://github.com/rust-lang/backtrace-rs.git) registered for path 'library/backtrace'
error: you asked `x.py` to setup a new config file, but one already exists at `config.toml`
Build completed unsuccessfully in 0:00:02
```
That's not a great user experience because you need to wait a long time between prompts.
It would be possible to move the submodule handling either before or after the prompt, but it seems
better to just not require submodules to be checked out at all, to minimize the time spend waiting
just to create a new configuration.
Manually implement PartialEq for Option<T> and specialize non-nullable types
This PR manually implements `PartialEq` and `StructuralPartialEq` for `Option`, which seems to produce slightly better codegen than the automatically derived implementation.
It also allows specializing on the `core::num::NonZero*` and `core::ptr::NonNull` types, taking advantage of the niche optimization by transmuting the `Option<T>` to `T` to be compared directly, which can be done in just two instructions.
A comparison of the original, new and specialized code generation is available [here](https://godbolt.org/z/dE4jxdYsa).
Enable profiler in dist-riscv64-linux
Build the profiler runtime to allow using -C profile-generate and -C instrument-coverage on riscv64-linux.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Add `ConstKind::Expr`
Starting to implement `ty::ConstKind::Abstract`, most of the match cases are stubbed out, some I was unsure what to add, others I didn't want to add until a more complete implementation was ready.
r? `@lcnr`
rustdoc: fix broken tooltip CSS
text `#ffffff` on background `#fdffd3` fails the [WCAG color contrast checker], and seems like a mistake in 16b55903ee.
Making the cursor a pointer is misleading, since clicking it doesn't do anything.
[WCAG color contrast checker]: https://accessibleweb.com/color-contrast-checker/
rustbuild: Don't build doc::SharedAssets when building JSON docs.
Previously, running `./x doc library/core/ --json` on a plain build would panic bootstrap.
```
$ ./x doc library/core/ --json
Building rustbuild
Blocking waiting for file lock on package cache
Compiling bootstrap v0.0.0 (/home/nixon/dev/rust/rust/src/bootstrap)
Finished dev [unoptimized] target(s) in 4.47s
thread 'main' panicked at 'fs::write(&version_info, &info) failed with No such file or directory (os error 2) ("/home/nixon/dev/rust/rust/build/x86_64-unknown-linux-gnu/doc/version_info.html")', doc.rs:410:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Build completed unsuccessfully in 0:00:04
```
Becuase the `SharedAssets` step assumes that the HTML out dir has been created. This isn't true for JSON.
The fix is to not build shared assets when doing a JSON doc build, as it doesn't need them.
r? ``@jyn514``
``@rustbot`` modify labels: +A-rustdoc-json
Don't set `is_preview` for clippy and rustfmt
These have been shipped on stable for many years now and it would be very disruptive to ever remove them.
Remove the `-preview` suffix from their dist components.
Based on https://github.com/rust-lang/rust/pull/102565.
Build macOS distribution artifacts with XCode 13
After all of the `rust-lang/rust` Apple runners started using macOS 12, the builds created by CI began to use XCode 14.0.1. Due to this (as far as we can tell), XCode's build tools started to ignore the `MACOSX_DEPLOYMENT_TARGET` being defined by us for the distributed builds that let both `rustc` and `libstd` work on older versions. The current idea is that since XCode 14's macOS SDK doesn't support deployment targets before 10.13, it uses some default of its own. You can see the difference between stable's and the most recent nighty's supported versions [here](https://github.com/rust-lang/rust/issues/104570#issuecomment-1321225907).
I wasn't able to confirm my SDK versioning hypothesis locally since I think there's something jammed with my XCode installation, but hopefully this should still fix it for releases.
Closes https://github.com/rust-lang/rust/issues/104570
r? `@Mark-Simulacrum`
Initial pass at expr/abstract const/s
Address comments
Switch to using a list instead of &[ty::Const], rm `AbstractConst`
Remove try_unify_abstract_consts
Update comments
Add edits
Recurse more
More edits
Prevent equating associated consts
Move failing test to ui
Changes this test from incremental to ui, and mark it as failing and a known bug.
Does not cause the compiler to ICE, so should be ok.
These have been shipped on stable for many years now and it would be very disruptive to ever remove them.
Remove the `-preview` suffix from their dist components.
rustdoc: simplify `.search-results-title` CSS
By using `display: flex`, we still get the never-wrapping layout with `#crate-search-div` maxing out and truncating its text. The title itself winds up always filling its parent, but since `#crate-search` doesn't have `flex-grow` set, it won't fill available space.
make `error_reported` check for delayed bugs
Fixes#104768
`error_reported()` was only checking if there were errors emitted, not for `delay_bug`s which can also be a source of `ErrorGuaranteed`. I assume the same is true of `lint_err_count` but i dont know
Make rustc_target usable outside of rustc
I'm working on showing type size in rust-analyzer (https://github.com/rust-lang/rust-analyzer/pull/13490) and I currently copied rustc code inside rust-analyzer, which works, but is bad. With this change, I would become able to use `rustc_target` and `rustc_index` directly in r-a, reducing the amount of copy needed.
This PR contains some feature flag to put nightly features behind them to make crates buildable on the stable compiler + makes layout related types generic over index type + removes interning of nested layouts.
Avoid `GenFuture` shim when compiling async constructs
Previously, async constructs would be lowered to "normal" generators, with an additional `from_generator` / `GenFuture` shim in between to convert from `Generator` to `Future`.
The compiler will now special-case these generators internally so that async constructs will *directly* implement `Future` without the need to go through the `from_generator` / `GenFuture` shim.
The primary motivation for this change was hiding this implementation detail in stack traces and debuginfo, but it can in theory also help the optimizer as there is less abstractions to see through.
---
Given this demo code:
```rust
pub async fn a(arg: u32) -> Backtrace {
let bt = b().await;
let _arg = arg;
bt
}
pub async fn b() -> Backtrace {
Backtrace::force_capture()
}
```
I would get the following with the latest stable compiler (on Windows):
```
4: async_codegen:🅱️:async_fn$0
at .\src\lib.rs:10
5: core::future::from_generator::impl$1::poll<enum2$<async_codegen:🅱️:async_fn_env$0> >
at /rustc/897e37553bba8b42751c67658967889d11ecd120\library\core\src\future\mod.rs:91
6: async_codegen:🅰️:async_fn$0
at .\src\lib.rs:4
7: core::future::from_generator::impl$1::poll<enum2$<async_codegen:🅰️:async_fn_env$0> >
at /rustc/897e37553bba8b42751c67658967889d11ecd120\library\core\src\future\mod.rs:91
```
whereas now I get a much cleaner stack trace:
```
3: async_codegen:🅱️:async_fn$0
at .\src\lib.rs:10
4: async_codegen:🅰️:async_fn$0
at .\src\lib.rs:4
```
