Various changes to string format diagnostics
- Point at opening mismatched formatting brace
- Account for differences between raw and regular strings
- Account for differences between the code snippet and `InternedString`
- Add more tests
```
error: invalid format string: expected `'}'`, found `'t'`
--> $DIR/ifmt-bad-arg.rs:85:1
|
LL | ninth number: {
| - because of this opening brace
LL | tenth number: {}",
| ^ expected `}` in format string
|
= note: if you intended to print `{`, you can escape it using `{{`
```
Fix#53837.
- Point at opening mismatched formatting brace
- Account for differences between raw and regular strings
- Account for differences between the code snippet and `InternedString`
- Add more tests
Add unstable Iterator::copied()
Initially suggested at https://github.com/bluss/rust-itertools/pull/289, however the maintainers of itertools suggested this may be better of in a standard library.
The intent of `copied` is to avoid accidentally cloning iterator elements after doing a code refactoring which causes a structure to be no longer `Copy`. This is a relatively common pattern, as it can be seen by calling `rg --pcre2 '[.]map[(][|](?:(\w+)[|] [*]\1|&(\w+)[|] \2)[)]'` on Rust main repository. Additionally, many uses of `cloned` actually want to simply `Copy`, and changing something to be no longer copyable may introduce unnoticeable performance penalty.
Also, this makes sense because the standard library includes `[T].copy_from_slice` to pair with `[T].clone_from_slice`.
This also adds `Option::copied`, because it makes sense to pair it with `Iterator::copied`. I don't think this feature is particularly important, but it makes sense to update `Option` along with `Iterator` for consistency.
Remove header licenses across the project
This pull request removes the header licenses from files across the Rust repository.
I've attempted to check for any remaining headers and removed all of them -- any we've missed can be removed in the future; there's nothing blocking that.
Unfortunately, not all of the changes are as basic as "removing a header" because some of them required test file updates or otherwise. However, I am fairly confident that the changes in this pull request, while wide-sweeping, are unlikely to actually make any tests fail to properly test the code; any non-script based changes were manual and carefully verified.
r? @pietroalbini cc @rust-lang/infra
make non_camel_case_types an early lint
This allows us to catch these kinds of style violations much earlier, as evidenced by the large number of tests that had to be updated for this change.
Revert #56944.
This should fix#57111, since #56944 is the only PR involving LLVM.
#57111 is caused by both the rustc and rust-std tarballs providing libLLVM.
r? @alexcrichton
Update the stdsimd submodule
This brings in a few updates:
* Update wasm intrinsic naming for atomics
* Update and reimplement most simd128 wasm intrinsics
* Other misc improvements here and there, including a small start to
AVX-512 intrinsics
std: Use backtrace-sys from crates.io
This commit switches the standard library to using the `backtrace-sys`
crate from crates.io instead of duplicating the logic here in the Rust
repositor with the `backtrace-sys`'s crate's logic.
Eventually this will hopefully be a good step towards using the
`backtrace` crate directly from crates.io itself, but we're not quite
there yet! Hopefully this is a small incremental first step we can take.
x.py: fixup 6130fc884b, fix submodule handling
./x.py used to automatically check out the right commit when a submodule was outdated and ./x.py build was run
and submodules handling was enabled in config.toml (submodules = true).
But it threw an error:
[...]
failed to run: git submodule -q sync --progress src/tools/clippy
The commit removes the --progress from git submodule call.
Fixes#57080
./x.py used to automatically check out the right commit when a submodule was outdated and ./x.py build was run
and submodules handling was enabled in config.toml (submodules = true).
But it threw an error:
[...]
failed to run: git submodule -q sync --progress src/tools/clippy
The commit removes the --progress from git submodule call.
Fixes#57080
This commit switches the standard library to using the `backtrace-sys`
crate from crates.io instead of duplicating the logic here in the Rust
repositor with the `backtrace-sys`'s crate's logic.
Eventually this will hopefully be a good step towards using the
`backtrace` crate directly from crates.io itself, but we're not quite
there yet! Hopefully this is a small incremental first step we can take.
docs(rustc): make hello() public
Running the example code [here](https://doc.rust-lang.org/rustc/what-is-rustc.html#basic-usage) throws error:
```
error[E0603]: function `hello` is private
--> src/main.rs:4:10
|
4 | foo::hello();
| ^^^^^
```
Making `hello()` public fixes the problem.
Rollup of 10 pull requests
Successful merges:
- #55470 (box: Add documentation for `From` impls)
- #56242 (Add missing link in docs)
- #56944 (bootstrap: Link LLVM as a dylib with ThinLTO)
- #56978 (Add `std::os::fortanix_sgx` module)
- #56985 (Allow testing pointers for inboundedness while forbidding dangling pointers)
- #56986 (rustc: Move jemalloc from rustc_driver to rustc)
- #57010 (Actually run compiletest tests on CI)
- #57021 (Enable emission of alignment attrs for pointer params)
- #57074 (Fix recursion limits)
- #57085 (librustc_codegen_llvm: Don't eliminate empty structs in C ABI on linux-sparc64)
Failed merges:
r? @ghost
librustc_codegen_llvm: Don't eliminate empty structs in C ABI on linux-sparc64
This is in accordance with the SPARC Compliance Definition 2.4.1,
Page 3P-12. It says that structs of up to 8 bytes (which applies
to empty structs as well) are to be passed in one register.
Enable emission of alignment attrs for pointer params
Instead disable creation of assumptions during inlining using an LLVM opt flag. For non-inlined functions, this gives us alignment information, while not inserting any assumes that kill other optimizations.
The `-Z arg-align-attributes` option which previously controlled this behavior is removed.
Fixes#54982.
r? @nagisa
cc @eddyb who added the current behavior, and @scottmcm, who added the `-Z arg-align-attributes` flag.
Actually run compiletest tests on CI
I was assuming that https://github.com/rust-lang/rust/pull/56792 would
have resulted in compiletest tests being executed on CI. However, I
couldn't find any mentions of the unit test names in any CI logs.
This adds the compiletest test execution to the checktools.sh script.
rustc: Move jemalloc from rustc_driver to rustc
This commit moves jemalloc to just the rustc binary rather than the
rustc_driver shared library, enusring that it's only used for binaries
that opt-in to it like rustc rather than other binaries using
librustc_driver like rustdoc/rls/etc. This will hopefully address #56980
bootstrap: Link LLVM as a dylib with ThinLTO
When building a distributed compiler on Linux where we use ThinLTO to
create the LLVM shared object this commit switches the compiler to
dynamically linking that LLVM artifact instead of statically linking to
LLVM. The primary goal here is to reduce CI compile times, avoiding two+
ThinLTO builds of all of LLVM. By linking dynamically to LLVM we'll
reuse the one ThinLTO step done by LLVM's build itself.
Lots of discussion about this change can be found [here] and down. A
perf run will show whether this is worth it or not!
[here]: https://github.com/rust-lang/rust/pull/53245#issuecomment-417015334
box: Add documentation for `From` impls
This is a part of #51430. A brief description of the behaviour and examples are added to the documentation.
I am not sure what sort of examples to put for the `From` for `Pin` as my [code](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2015&gist=97c908f44e41c9faeffec5b61d72a03e) doesn't even manage to compile using the nightly build.
Somehow I feel that I missed out something so do let me know if more information is needed in the documentation or any of the examples require change.
Rollup of 14 pull requests
Successful merges:
- #56188 (enum type instead of variant suggestion unification )
- #56342 (Improve docs for collecting into `Option`s)
- #56916 (Fix mutable references in `static mut`)
- #56917 (Simplify MIR generation for logical operations)
- #56939 (Pin stabilization)
- #56953 (Mark tuple structs as live if their constructors are used)
- #56964 (Remove `TokenStream::JointTree`.)
- #56966 (Correct strings for raw pointer deref and array access suggestions)
- #57020 (Point to cause of `fn` expected return type)
- #57032 (fix deprecation warnings in liballoc benches)
- #57053 (Fix alignment for array indexing)
- #57062 (Fix a comment)
- #57067 (Stabilize min_const_unsafe_fn in 1.33)
- #57078 (Ignore two tests on s390x)
Failed merges:
r? @ghost
submodules: update clippy from a416c5e0 to fc24fce7
Fixes clippy tool state
Changes:
````
FIXME > TODO
rustup https://github.com/rust-lang/rust/pull/56992
Document map_clone known problems #498
Remove header link
test: panic at map_unit_fn.rs:202 for map() without args
rm unused file map_unit_fn.stderr
panic at map_unit_fn.rs:202 for map() without args
Change contrib.md hierarchy, link to it from readme
Workaround rust-lang/rust#43081
Teach `suspicious_else_formatting` about `if .. {..} {..}`
Link to `rustc_driver` crate in plugin
mutex_atomic: Correct location of AtomicBool and friends
Update README local run command to specify syspath
Do not mark as_ref as useless if it's followed by a method call
Changes lint sugg to bitwise and operator `&`
Run update_lints after renaming
Rename lint to MODULE_NAME_REPETITIONS
Add renaming tests
Move renaming to the right place
Implements lint for order comparisons against bool
fix(module_name_repeat): Try to register renamed lint, not valid yet
Fix an endless loop in the tests.
Fix `implicit_return` false positives.
chore(moduel_name_repeat): Rename stutter lint to module_name_repeat to avoid ableist language
Make integration tests fail on 'E0463'
base tests: make sure cargo-clippy binary can be called directly
Revert "Merge pull request #3257 from o01eg/remove-sysroot"
````
r? @oli-obk
This is in accordance with the SPARC Compliance Definition 2.4.1,
Page 3P-12. It says that structs of up to 8 bytes (which applies
to empty structs as well) are to be passed in one register.
Fix alignment for array indexing
We need to reduce the alignment with the used offset. If the offset isn't known, use the element size, as this will yield the minimum possible alignment.
This handles both direct array indexing, and array repeat expressions.
Fixes#56927.
r? @nagisa
Remove `TokenStream::JointTree`.
This is done by adding a new `IsJoint` field to `TokenStream::Tree`,
which simplifies a lot of `match` statements. And likewise for
`CursorKind`.
The commit also adds a new method `TokenTree:stream()` which can replace
a choice between `.into()` and `.joint()`.
Pin stabilization
This implements the changes suggested in https://github.com/rust-lang/rust/issues/55766#issue-378417538 and stabilizes the `pin` feature. @alexcrichton also listed several "blockers" in that issue, but then in [this comment](https://github.com/rust-lang/rust/issues/55766#issuecomment-445074980) mentioned that they're more "TODO items":
> In that vein I think it's fine for a stabilization PR to be posted at any time now with FCP lapsed for a week or so now. The final points about self/pin/pinned can be briefly discussed there (if even necessary, they could be left as the proposal above).
Let's settle these last bits here and get this thing stabilized! :)
r? @alexcrichton
cc @withoutboats
Improve docs for collecting into `Option`s
Changes the original example to use more idiomatic formatting as well
as `.checked_add`. Also adds a second example to show a case where the
`.collect` returns `None`.
enum type instead of variant suggestion unification
Fixes#56028.
Weirdly, we were deciding between a help note and a structured suggestion based on whether the import candidate span was a dummy—but we weren't using that span in any case! The dummy-ness of the span (which appears to be a matter of this-crate vs. other-crate definition) isn't the right criterion by which we should decide whether it's germane to mention that "there is an enum variant"; instead, let's use the someness of `def` (which is used as the `has_unexpected_resolution` argument to `error_code`).
Since `import_candidate_to_paths` has no other callers, we are free to stop returning the span and rename the function. By using `span_suggestions_`, we leverage the max-suggestions output limit already built in to the emitter, thus resolving #56028.
In the matter of message wording, "you can" is redundant (and perhaps too informal); prefer the imperative.
In a second commit, we do some unprincipled special-casing to correct and beautify suggestions for `Option` and `Result` (where the existing code was being confused by their being reexported in the prelude).
r? @davidtwco
