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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0452
This primarily picks up a few fixes.
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We should not only in type position.
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Clippy subtree update
r? `@Manishearth`
Cargo.lock update due to `ui_test` bump and restructure.
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This is quite a bit of implementation complexity, yet it is quite
broken, and we don't have the maintenance bandwidth to address.
Remove the current implementation if only to reduce bootstrap's
implementation complexity; the `suggest` flow comes with its own set of
hacks.
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musl's dlopen returns a different error than glibc, which contains the
name of the file. This would cause the test to fail, since the filename
would appear twice in the output (once in the error from rustc, once in
the error message from musl). Split the expected test outputs for the
different libc implementations.
Signed-off-by: Jens Reidel <adrian@travitia.xyz>
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[COMPILETEST-UNTANGLE 6/N] Use `TestSuite` enum instead of stringly-typed test suites
This is part of a patch series to untangle `compiletest` to hopefully nudge it towards being more maintainable.
This PR should contain no functional changes.
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Updates to random number generation APIs
Updates based on discussions about random number generation.
- Add comment on `RandomSource::fill_bytes` about multiple calls, to allow
efficient implementations for random sources that generate a word at a time.
- Drop the `Random` trait in favor of `Distribution<T>`, which will let people
make calls like random(1..=6), and which allows for future expansion to
non-uniform distributions, as well as floating-point. (For now, this is only
implemented for `RangeFull`, to get the interface in place. Subsequent PRs
will implement it for other range types.)
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Key changes include:
- Removal of the word "syntax" from the lint message. More accurately,
it could have been something like "syntax group" or "syntax
category", but avoiding it completely is easier.
- The primary lint message now reflects exactly which mismatch is
occurring, instead of trying to be general. A new `help` line is
general across the mismatch kinds.
- Suggestions have been reduced to be more minimal, no longer also
changing non-idiomatic but unrelated aspects.
- Suggestion text no longer mentions changes when those changes don't
occur in that specific suggestion.
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Tier check cleanup
clippy cleanup + edition 2024
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update issue number for `const_trait_impl`
r? project-const-traits
cc rust-lang/rust#67792 rust-lang/rust#143874
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Compiletest: Simplify {Html,Json}DocCk directive handling
So much more maintainable and extensible.
r? ````@jieyouxu```` as discussed
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Tidy cleanup
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Remove `ConstParam::remove_default` and `TypeParam::remove_default` to migrate from ted
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Port `#[automatically_derived]` to the new attribute parsing infrastructure
Ports `#[automatically_derived]` to the new attribute parsing infrastructure for https://github.com/rust-lang/rust/issues/131229#issuecomment-2971351163
r? `@oli-obk`
cc `@jdonszelmann`
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Retire hir::*ItemRef.
This information was kept for various places that iterate on HIR to know about trait-items and impl-items.
This PR replaces them by uses of the `associated_items` query that contain pretty much the same information.
This shortens many spans to just `def_span`, which can be easier to read.
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remove now useless `#[allow(unused_lifetimes)]`
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clippy: fix test filtering when TESTNAME is empty
Fixes https://github.com/rust-lang/rust/issues/143824. Turns out bootstrap was just fine, the TESTNAME logic in clippy was wrong... I still made this a rustc PR as that's where I did all the debugging.
The bootstrap change is not really related, but it's comment-only so not worth a separate PR... adding the `test_args` is also part of what `prepare_cargo_test` would usually do so let's group the code properly.
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interpret/allocation: expose init + write_wildcards on a range
Part of https://github.com/rust-lang/miri/pull/4456, so that we can mark down when a foreign access to our memory happened. Should this also move `prepare_for_native_access()` itself into Miri, given that everything there can be implemented on Miri's side?
r? `````@RalfJung`````
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Rollup of 12 pull requests
Successful merges:
- rust-lang/rust#143776 (std: move NuttX to use arc4random for random number generation)
- rust-lang/rust#143778 (Some const_trait_impl test cleanups)
- rust-lang/rust#143782 (Disambiguate between rustc vs std having debug assertions in `run-make-support` and `run-make` tests)
- rust-lang/rust#143791 (Update sysinfo version to `0.36.0`)
- rust-lang/rust#143796 (Fix ICE for parsed attributes with longer path not handled by CheckAttribute)
- rust-lang/rust#143798 (Remove format short command trait)
- rust-lang/rust#143803 (New tracking issues for const_ops and const_cmp)
- rust-lang/rust#143814 (htmldocck: better error messages for some negative directives)
- rust-lang/rust#143817 (Access `wasi_sdk_path` instead of reading environment variable in bootstrap)
- rust-lang/rust#143822 (./x test miri: fix cleaning the miri_ui directory)
- rust-lang/rust#143823 ([COMPILETEST-UNTANGLE 5/N] Test mode adjustments and other assorted cleanups)
- rust-lang/rust#143841 (Label clippy changes with `T-clippy`)
Failed merges:
- rust-lang/rust#143850 (Compiletest: Simplify {Html,Json}DocCk directive handling)
r? `@ghost`
`@rustbot` modify labels: rollup
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Massage the `symbols` helpers to fill out {match all, match any} x
{substring match, exact match}:
| | Substring match | Exact match |
|-----------|----------------------------------------|-------------------------------|
| Match any | `object_contains_any_symbol_substring` | `object_contains_any_symbol` |
| Match all | `object_contains_all_symbol_substring` | `object_contains_all_symbols` |
As part of this, rename `any_symbol_contains` to
`object_contains_any_symbol_substring` for accuracy.
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[COMPILETEST-UNTANGLE 5/N] Test mode adjustments and other assorted cleanups
This is part of a patch series to untangle `compiletest` to hopefully nudge it towards being more maintainable.
This PR should contain no functional changes modulo the removed debugger version warning.
- Commit 1: Removes a very outdated debugger version warning.
- Commit 2: Moves `string_enum` out of `common` into `util` module.
- Commit 3: Remove `#[derive(Default)` for `Mode` and `Config`. It is very important for correctness that we *don't* `#[derive(Default)]`, because there are no sensible defaults, so stop pretending there is.
- Commit 4: Rename `Mode` -> `TestMode`, because I would like to introduce a `TestSuite` enum to stop using stringly-typed test suite names where test mode names can be the same as test suite names, and we also have a bunch of other "modes" in compiletest. Make this as unambiguous as possible. A corollary is that now it's more natural to reference via intra-doc links as ``[`TestMode`]``.
- Commit 5: Ditto on `TestSuite`, stop glob-reexporting `TestMode::*` variants, and always use `EnumName::VariantName` form.
- Commit 6: Apparently, `src/tools/rustdoc-gui-test/` depends on `compiletest` for `//@ {compile,run}-paths` directive parsing and extraction, which involves creating a dummy `compiletest` config (hence the existence of the default impls removed in Commit 3). Make this a specific associated function with a FIXME pointing to rust-lang/rust#143827 as I think this setup is quite questionable.
Commits {4, 5} are also intended to help improve the self-consistency in nomenclature used within compiletest.
Best reviewed commit-by-commit.
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./x test miri: fix cleaning the miri_ui directory
Fixes https://github.com/rust-lang/rust/issues/143680
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Update sysinfo version to `0.36.0`
Bugfixes and some new API additions.
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Disambiguate between rustc vs std having debug assertions in `run-make-support` and `run-make` tests
`NO_DEBUG_ASSERTIONS` is set by CI that threads through to the `./configure.py` script, which is somewhat fragile and "spooky action at a distance". For `fmt-write-bloat`, this is actually wrong because the test wants to gate on *std* being built with debug assertions or not, whereas `NO_DEBUG_ASSERTIONS` determines *rustc* being built with debug assertions or not. Instead, use env vars controlled by compiletest, whose debug assertion info comes from bootstrap.
https://github.com/rust-lang/rust/blob/855e0fe46e68d94e9f6147531b75ac2d488c548e/src/ci/run.sh#L137-L146
`NO_DEBUG_ASSERTIONS` controls `--enable-debug-assertions`
https://github.com/rust-lang/rust/blob/855e0fe46e68d94e9f6147531b75ac2d488c548e/src/bootstrap/configure.py#L124
which sets `--rust.debug-assertions`, which controls *rustc* debug assertions.
https://github.com/rust-lang/rust/blob/855e0fe46e68d94e9f6147531b75ac2d488c548e/src/bootstrap/configure.py#L125-L129
`--rust.debug-assertions-std` controls *std* debug assertions.
Noticed while investigating `fmt-write-bloat` in https://github.com/rust-lang/rust/pull/143669#discussion_r2200522215.
Best reviewed commit-by-commit.
r? ``@ChrisDenton`` (or compiler/bootstrap)
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de-duplicate condition scoping logic between AST→HIR lowering and `ScopeTree` construction
There was some overlap between `rustc_ast_lowering::LoweringContext::lower_cond` and `rustc_hir_analysis::check::region::resolve_expr`, so I've removed the former and migrated its logic to the latter, with some simplifications.
Consequences:
- For `while` and `if` expressions' `let`-chains, this changes the `HirId`s for the `&&`s to properly correspond to their AST nodes. This is how guards were handled already.
- This makes match guards share previously-duplicated logic with `if`/`while` expressions. This will also be used by guard pattern[^1] guards.
- Aside from legacy syntax extensions (e.g. some builtin macros) that directly feed AST to the compiler, it's currently impossible to put attributes directly on `&&` operators in `let` chains[^2]. Nonetheless, attributes on `&&` operators in `let` chains in `if`/`while` expression conditions are no longer silently ignored and will be lowered.
- This no longer wraps conditions in `DropTemps`, so the HIR and THIR will be slightly smaller.
- `DesugaringKind::CondTemporary` is now gone. It's no longer applied to any spans, and all uses of it were dead since they were made to account for `if` and `while` being desugared to `match` on a boolean scrutinee.
- Should be a marginal perf improvement beyond that due to leveraging [`ScopeTree` construction](https://github.com/rust-lang/rust/blob/5e749eb66f93ee998145399fbdde337e57cd72ef/compiler/rustc_hir_analysis/src/check/region.rs#L312-L355)'s clever handling of `&&` and `||`:
- This removes some unnecessary terminating scopes that were placed around top-level `&&` and `||` operators in conditions. When lowered to MIR, logical operator chains don't create intermediate boolean temporaries, so there's no temporary to drop. The linked snippet handles wrapping the operands in terminating scopes as necessary, in case they create temporaries.
- The linked snippet takes care of letting `let` temporaries live and terminating other operands, so we don't need separate traversals of `&&` chains for that.
[^1]: rust-lang/rust#129967
[^2]: Case-by-case, here's my justification: `#[attr] e1 && e2` applies the attribute to `e1`. In `#[attr] (e1 && e2)` , the attribute is on the parentheses in the AST, plus it'd fail to parse if `e1` or `e2` contains a `let`. In `#[attr] expands_to_let_chain!()`, the attribute would already be ignored (rust-lang/rust#63221) and it'd fail to parse anyway; even if the expansion site is a condition, the expansion wouldn't be parsed with `Restrictions::ALLOW_LET`. If it *was* allowed, the notion of a "reparse context" from https://github.com/rust-lang/rust/issues/61733#issuecomment-509626449 would be necessary in order to make `let`-chains left-associative; multiple places in the compiler assume they are.
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Split up the `unknown_or_malformed_diagnostic_attributes` lint
This splits up the lint into the following lint group:
- `unknown_diagnostic_attributes` - triggers if the attribute is unknown to the current compiler
- `misplaced_diagnostic_attributes` - triggers if the attribute exists but it is not placed on the item kind it's meant for
- `malformed_diagnostic_attributes` - triggers if the attribute's syntax or options are invalid
- `malformed_diagnostic_format_literals` - triggers if the format string literal is invalid, for example if it has unpaired curly braces or invalid parameters
- this pr doesn't create it, but future lints for things like deprecations can also go here.
This PR does not start emitting lints in places that previously did not.
## Motivation
I want to have finer control over what `unknown_or_malformed_diagnostic_attributes` does
I have a project with fairly low msrv that is/will have a lower msrv than future diagnostic attributes. So lints will be emitted when I or others compile it on a lower msrv.
At this time, there are two options to silence these lints:
- `#[allow(unknown_or_malformed_diagnostic_attributes)]` - this risks diagnostic regressions if I (or others) mess up using the attribute, or if the attribute's syntax ever changes.
- write a build script to detect the compiler version and emit cfgs, and then conditionally enable the attribute:
```rust
#[cfg_attr(rust_version_99, diagnostic::new_attr_in_rust_99(thing = ..))]`
struct Foo;
```
or conditionally `allow` the lint:
```rust
// lib.rs
#![cfg_attr(not(current_rust), allow(unknown_or_malformed_diagnostic_attributes))]
```
I like to avoid using build scripts if I can, so the following works much better for me. That is what this PR will let me do in the future:
```rust
#[allow(unknown_diagnostic_attribute, reason = "attribute came out in rust 1.99 but msrv is 1.70")]
#[diagnostic::new_attr_in_rust_99(thing = ..)]`
struct Foo;
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Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#143403 (Port several trait/coherence-related attributes the new attribute system)
- rust-lang/rust#143633 (fix: correct assertion to check for 'noinline' attribute presence before removal)
- rust-lang/rust#143647 (Clarify and expand documentation for std::sys_common dependency structure)
- rust-lang/rust#143716 (compiler: doc/comment some codegen-for-functions interfaces)
- rust-lang/rust#143747 (Add target maintainer information for aarch64-unknown-linux-musl)
- rust-lang/rust#143759 (Fix typos in function names in the `target_feature` test)
- rust-lang/rust#143767 (Bump `src/tools/x` to Edition 2024 and some cleanups)
- rust-lang/rust#143769 (Remove support for SwitchInt edge effects in backward dataflow)
- rust-lang/rust#143770 (build-helper: clippy fixes)
r? `@ghost`
`@rustbot` modify labels: rollup
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I would like to introduce `TestSuite` over stringly-typed test suite
names, and some test suite names are the same as test modes, which can
make this very confusing.
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It is *critical* that we maintain clear nomenclature in `compiletest`.
We have many types of "modes" in `compiletest` -- pass modes, coverage
modes, compare modes, you name it. `Mode` is also a *super* general
term. Rename it to `TestMode` to leave no room for such ambiguity.
As a follow-up, I also intend to introduce an enum for `TestSuite`, then
rid of all usage of glob re-exported `TestMode::*` enum variants -- many
test suites share the same name as the test mode.
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They do not have sensible defaults, and it is crucial that we get them
right.
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