Move some driver code around
`--emit mir`, `#[rustc_symbol_name]` and `#[rustc_def_path]` now run before codegen and thus work even if codegen fails. This can help with debugging.
rustdoc js: add nonnull helper and typecheck src-script.js
this removes ``@ts-nocheck`` from `src-script.js` and adds a `nonnull` helper function that assists in adding null checks to places where null values should be impossible.
r? `@notriddle`
Mark some std tests as requiring `panic = "unwind"`
This allows these test modules to pass on builds/targets without unwinding support, where `panic = "abort"` - the ignored tests are for functionality that's not supported on those targets.
rustdoc: Use own logic to print `#[repr(..)]` attributes in JSON output.
Switch away from `Debug`-like representation of `#[repr(..)]` attributes, and start using rustdoc's own logic for pretty-printing `#[repr(..)]` in rustdoc JSON.
Part of addressing #137645 but not a complete solution for it.
r? `@aDotInTheVoid`
hack: is_doc_subtype_of always returns true for TyAlias
it's worth noting that this function is only used in
the handling of "Methods from Deref", and we were previously
assuming all generic parameters were meaningless,
so this is still an improvment from the status quo.
this change means that we will have strictly less false positives
without adding any new false negitives.
Co-authored-by: Guillaume Gomez <guillaume1.gomez@gmail.com>
...by adding an optimized implementation of `try_fold` and `fold` as well as replacing some unnecessary `mem::replace` calls with `MaybeUninit` helper methods.
As per #117276, this moves the implementations of `Process` and friends out of the `pal` module and into the `sys` module, removing quite a lot of error-prone `#[path]` imports in the process (hah, get it ;-)). I've also made the `zircon` module a dedicated submodule of `pal::unix`, hopefully we can move some other definitions there as well (they are currently quite a lot of duplications in `sys`). Also, the `ensure_no_nuls` function on Windows now lives in `sys::pal::windows` – it's not specific to processes and shared by the argument implementation.
test(ui): add tuple-struct-where-clause-suggestion ui test for #91520Fixes#91520
I tried to also make it a .fixed test, but I failed to accomplish that.
That's because of the 'consider annotating `Inner<T>` with `#[derive(Clone)]`' suggestion does not compile (conflicting Clone implementations), and I can't isolate them with `rustfix-only-machine-applicable` as both suggestions are not marked as `MachineApplicable`.
Instead I just test that the where clause suggestion is applied to the correct line.
Clean UI tests 2 of n
Modified 4 tests in tests/ui. Cleaned 3 and deleted one.
I have a final commit changing the values in `src/tools/tidy/src/ui_tests.rs`.
I wasn't sure if it was best practice to change this value as you go along or
once at the end. I can rebase to something that incrementally changes the value
in the "cleaned" commits if that is preferred.
Related Issues:
#73494#133895
r? jieyouxu
Add stack overflow handler for cygwin
The cygwin runtime handles stack overflow exception and converts it to `SIGSEGV`, but the passed `si_addr` is obtained from `ExceptionInformation[1]` which is actually an undocumented value when stack overflows. Thus I choose to use Windows API directly to register handler, just like how std does on native Windows. The code is basically copied from the Windows one.
Ref:
* 5ec497dc80/winsup/cygwin/exceptions.cc (L822-L823)
* https://learn.microsoft.com/zh-cn/windows/win32/api/winnt/ns-winnt-exception_record
jsondocck: Replace `jsonpath_lib` with `jsonpath-rust`
The current jsonpath implementation we use isn't spec-compliant, and is buggy. See https://github.com/freestrings/jsonpath/issues/91
To solve it, it's replaced with https://github.com/besok/jsonpath-rust. This is spec-compiant, and doesn't have a really awkward bug we need to always dance around.
Unfortunately, this requires rewriting almost every test, as the behaviour of `[?(```@`,``` which is *extremely* common was changed. (But the new behaviour makes way more sense, and isn't buggy with tripply nested selectors)
Unblocks #110406. Makes #100515 much easier as we don't need to explain the broken JSONPath implementation
Best reviewed commit-by-commit. The first does the replacement. The next two rewrite the test-suite mechanically. The last rewrites the test-suite by hand.
r? ```@GuillaumeGomez```
Cleanup `LangString::parse`
Flatten some `if`s into match patterns
Use `str::strip_prefix` instead of `starts_with`+indexing
Avoid redundant tests for `extra.is_some()`
Reduce FormattingOptions to 64 bits
This is part of https://github.com/rust-lang/rust/issues/99012
This reduces FormattingOptions from 6-7 machine words (384 bits on 64-bit platforms, 224 bits on 32-bit platforms) to just 64 bits (a single register on 64-bit platforms).
Before:
```rust
pub struct FormattingOptions {
flags: u32, // only 6 bits used
fill: char,
align: Option<Alignment>,
width: Option<usize>,
precision: Option<usize>,
}
```
After:
```rust
pub struct FormattingOptions {
/// Bits:
/// - 0-20: fill character (21 bits, a full `char`)
/// - 21: `+` flag
/// - 22: `-` flag
/// - 23: `#` flag
/// - 24: `0` flag
/// - 25: `x?` flag
/// - 26: `X?` flag
/// - 27: Width flag (if set, the width field below is used)
/// - 28: Precision flag (if set, the precision field below is used)
/// - 29-30: Alignment (0: Left, 1: Right, 2: Center, 3: Unknown)
/// - 31: Always set to 1
flags: u32,
/// Width if width flag above is set. Otherwise, always 0.
width: u16,
/// Precision if precision flag above is set. Otherwise, always 0.
precision: u16,
}
```
Match what `std::io::Empty` does, since it is very similar. However,
still evaluate the `fmt::Arguments` in `write_fmt` to be consistent with
other platforms.
Since array and slice constants are now lowered to array and slice
patterns, `non_scalar_compare` was only called for string comparisons.
This specializes it to strings, renames it, and removes the unused
array-unsizing logic.
This also updates some outdated doc comments.
Update cargo
14 commits in 6cf8267012570f63d6b86e85a2ae5627de52df9e..307cbfda3119f06600e43cd38283f4a746fe1f8b
2025-03-14 15:25:36 +0000 to 2025-03-20 20:00:39 +0000
- feat: Add custom completer for cargo <TAB> to complete aliases defined in config.toml (rust-lang/cargo#15319)
- fix(build-dir): Renamed workspace-manifest-path-hash to workspace-path-hash (rust-lang/cargo#15334)
- feat: vcs, color, and message format native completion (rust-lang/cargo#15322)
- Fix `[env]` `relative` description in reference (rust-lang/cargo#15332)
- chore: fix some typos (rust-lang/cargo#15329)
- Cleanup for rustc-link-arg-cdylib (rust-lang/cargo#15326)
- fix(toml): Report '<target>.edition' deprecation to users (rust-lang/cargo#15321)
- test(build-std): address overly-matched snapshot (rust-lang/cargo#15325)
- Added `build.build_dir` templating support (rust-lang/cargo#15236)
- docs: make it clearer that `rust_version` is enforced during compile (rust-lang/cargo#15303)
- feat: Add custom completer for cargo +<TAB> to complete toolchain name (rust-lang/cargo#15301)
- chore: fix some typos (rust-lang/cargo#15316)
- fix: deduplicate crate types in cargo rustc command (rust-lang/cargo#15314)
- docs: mention wrong URLs as a cause of git authentication errors (rust-lang/cargo#15304)
r? ghost
An assignment such as
(a, b) = (b, c);
desugars to the HIR
{ let (lhs, lhs) = (b, c); a = lhs; b = lhs; };
The repeated `lhs` leads to multiple Locals assigned to the same DILocalVariable. Rather than
attempting to fix that, get rid of the debug info for these bindings that don't even exist
in the program to begin with.
Fixes#138198
Avoid no-op unlink+link dances in incr comp
Incremental compilation scales quite poorly with the number of CGUs. This PR improves one reason for that.
The incr comp process hard-links all the files from an old session into a new one, then it runs the backend, which may just hard-link the new session files into the output directory. Then codegen hard-links all the output files back to the new session directory.
This PR (perhaps unimaginatively) fixes the silliness that ensues in the last step. The old `link_or_copy` implementation would be passed pairs of paths which are already the same inode, then it would blindly delete the destination and re-create the hard-link that it just deleted. This PR lets us skip both those operations. We don't skip the other two hard-links.
`cargo +stage1 b && touch crates/core/main.rs && strace -cfw -elink,linkat,unlink,unlinkat cargo +stage1 b` before and then after on `ripgrep-13.0.0`:
```
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
52.56 0.024950 25 978 485 unlink
34.38 0.016318 22 727 linkat
13.06 0.006200 24 249 unlinkat
------ ----------- ----------- --------- --------- ----------------
100.00 0.047467 24 1954 485 total
```
```
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
42.83 0.014521 57 252 unlink
38.41 0.013021 26 486 linkat
18.77 0.006362 25 249 unlinkat
------ ----------- ----------- --------- --------- ----------------
100.00 0.033904 34 987 total
```
This reduces the number of hard-links that are causing perf troubles, noted in https://github.com/rust-lang/rust/issues/64291 and https://github.com/rust-lang/rust/issues/137560
Rollup of 9 pull requests
Successful merges:
- #138364 (ports the compiler test cases to new rust_intrinsic format)
- #138570 (add `naked_functions_target_feature` unstable feature)
- #138623 ([bootstrap] Use llvm_runtimes for compiler-rt)
- #138627 (Autodiff cleanups)
- #138669 (tests: accept some noise from LLVM 21 in symbols-all-mangled)
- #138706 (Improve bootstrap git modified path handling)
- #138709 (Update GCC submodule)
- #138717 (Add an attribute that makes the spans from a macro edition 2021, and fix pin on edition 2024 with it)
- #138721 (Use explicit cpu in some asm and codegen tests.)
r? `@ghost`
`@rustbot` modify labels: rollup
