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Rollup of 15 pull requests
Successful merges:
- rust-lang/rust#145338 (actually provide the correct args to coroutine witnesses)
- rust-lang/rust#145429 (Couple of codegen_fn_attrs improvements)
- rust-lang/rust#145452 (Do not strip binaries in bootstrap everytime if they are unchanged)
- rust-lang/rust#145464 (Stabilize `const_pathbuf_osstring_new` feature)
- rust-lang/rust#145474 (Properly recover from parenthesized use-bounds (precise capturing lists) plus small cleanups)
- rust-lang/rust#145486 (Fix `unicode_data.rs` mention message)
- rust-lang/rust#145490 (Trace some basic I/O operations in bootstrap)
- rust-lang/rust#145493 (remove `should_render` in `PrintAttribute` derive)
- rust-lang/rust#145500 (Port must_use to the new target checking)
- rust-lang/rust#145505 (Simplify span caches)
- rust-lang/rust#145510 (Visit and print async_fut local for async drop.)
- rust-lang/rust#145511 (Rust build fails on OpenBSD after using file_lock feature)
- rust-lang/rust#145532 (resolve: debug for block module)
- rust-lang/rust#145533 (Reorder `lto` options from most to least optimizing)
- rust-lang/rust#145537 (Do not consider a `T: !Sized` candidate to satisfy a `T: !MetaSized` obligation.)
r? `@ghost`
`@rustbot` modify labels: rollup
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Rollup of 15 pull requests
Successful merges:
- rust-lang/rust#139345 (Extend `QueryStability` to handle `IntoIterator` implementations)
- rust-lang/rust#140740 (Add `-Zindirect-branch-cs-prefix`)
- rust-lang/rust#142079 (nll-relate: improve hr opaque types support)
- rust-lang/rust#142938 (implement std::fs::set_permissions_nofollow on unix)
- rust-lang/rust#143730 (fmt of non-decimal radix untangled)
- rust-lang/rust#144767 (Correct some grammar in integer documentation)
- rust-lang/rust#144906 (Require approval from t-infra instead of t-release on tier bumps)
- rust-lang/rust#144983 (Rehome 37 `tests/ui/issues/` tests to other subdirectories under `tests/ui/`)
- rust-lang/rust#145025 (run spellcheck as a tidy extra check in ci)
- rust-lang/rust#145099 (rustc_target: Add the `32s` target feature for LoongArch)
- rust-lang/rust#145166 (suggest using `pub(crate)` for E0364)
- rust-lang/rust#145255 (dec2flt: Provide more valid inputs examples)
- rust-lang/rust#145306 (Add tracing to various miscellaneous functions)
- rust-lang/rust#145336 (Hide docs for `core::unicode`)
- rust-lang/rust#145585 (Miri: fix handling of in-place argument and return place handling)
r? `@ghost`
`@rustbot` modify labels: rollup
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suggest using `pub(crate)` for E0364
- This introduces `vis_span` into `ImportData` for diagnostic purposes.
Closes: rust-lang/rust#145140
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```
error: cannot find attribute `sede` in this scope
--> $DIR/missing-derive-3.rs:20:7
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LL | #[sede(untagged)]
| ^^^^
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help: the derive macros `Deserialize` and `Serialize` accept the similarly named `serde` attribute
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LL | #[serde(untagged)]
| +
error: cannot find attribute `serde` in this scope
--> $DIR/missing-derive-3.rs:14:7
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LL | #[serde(untagged)]
| ^^^^^
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note: `serde` is imported here, but it is a crate, not an attribute
--> $DIR/missing-derive-3.rs:4:1
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LL | extern crate serde;
| ^^^^^^^^^^^^^^^^^^^
help: `serde` is an attribute that can be used by the derive macros `Deserialize` and `Serialize`, you might be missing a `derive` attribute
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LL + #[derive(Deserialize, Serialize)]
LL | enum B {
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```
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Do not ICE on private type in field of unresolved struct
Fix rust-lang/rust#145367.
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r=petrochenkov
Resolve the prelude import in `build_reduced_graph`
This pr tries to resolve the prelude import at the `build_reduced_graph` stage.
Part of batched import resolution in rust-lang/rust#145108 (cherry picked commit) and maybe needed for rust-lang/rust#139493.
r? petrochenkov
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resolve: Introduce `RibKind::Block`
to avoid confusing module items, blocks with items, and blocks without items.
Addresses https://github.com/rust-lang/rust/pull/143141#discussion_r2254893953 and https://github.com/rust-lang/rust/pull/143141#discussion_r2258004452.
A couple of related cleanups are also added on top.
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Rollup of 11 pull requests
Successful merges:
- rust-lang/rust#137872 (Include whitespace in "remove |" suggestion and make it hidden)
- rust-lang/rust#144631 (Fix test intrinsic-raw_eq-const-bad for big-endian)
- rust-lang/rust#145233 (cfg_select: Support unbraced expressions)
- rust-lang/rust#145261 (Improve tracing in bootstrap)
- rust-lang/rust#145324 (Rename and document `ONLY_HOSTS` in bootstrap)
- rust-lang/rust#145353 (bootstrap: Fix jemalloc 64K page support for aarch64 tools)
- rust-lang/rust#145379 (bootstrap: Support passing `--timings` to cargo)
- rust-lang/rust#145397 (Rust documentation, use `rustc-dev-guide` :3)
- rust-lang/rust#145398 (Use `default_field_values` in `Resolver`)
- rust-lang/rust#145401 (cleanup: Remove useless `[T].iter().last()`)
- rust-lang/rust#145403 (Adjust error message grammar to be less awkward)
r? `@ghost`
`@rustbot` modify labels: rollup
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to avoid confusing module items, blocks with items, and blocks without items.
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Remove one FIXME, addressing it does not reduce the hacky-ness much, and the logic is going to be removed anyway together with the `legacy_derive_helpers` deprecation lint.
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`maybe_resolve_path` is less precise in corner cases, but it's only used for diagnostics and error recovery, so it's good enough.
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resolve: Split extern prelude into two scopes
One scope for `extern crate` items and another for `--extern` options, with the former shadowing the latter.
If in a single scope some things can overwrite other things, especially with ad hoc restrictions like `MacroExpandedExternCrateCannotShadowExternArguments`, then it's not really a single scope.
So this PR splits `Scope::ExternPrelude` into two cleaner scopes.
This is similar to how https://github.com/rust-lang/rust/pull/144131 splits module scope into two scopes for globs and non-globs, but simpler.
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Handle macros with multiple kinds, and improve errors
(I recommend reviewing this commit-by-commit.)
Switch to a bitflags `MacroKinds` to support macros with more than one kind
Review everything that uses `MacroKind`, and switch anything that could refer to more than one kind to use `MacroKinds`.
Add a new `SyntaxExtensionKind::MacroRules` for `macro_rules!` macros, using the concrete `MacroRulesMacroExpander` type, and have it track which kinds it can handle. Eliminate the separate optional `attr_ext`, now that a `SyntaxExtension` can handle multiple macro kinds.
This also avoids the need to downcast when calling methods on `MacroRulesMacroExpander`, such as `get_unused_rule`.
Integrate macro kind checking into name resolution's `sub_namespace_match`, so that we only find a macro if it's the right type, and eliminate the special-case hack for attributes.
This allows detecting and report macro kind mismatches early, and more precisely, improving various error messages. In particular, this eliminates the case in `failed_to_match_macro` to check for a function-like invocation of a macro with no function-like rules.
Instead, macro kind mismatches now result in an unresolved macro, and we detect this case in `unresolved_macro_suggestions`, which now carefully distinguishes between a kind mismatch and other errors.
This also handles cases of forward-referenced attributes and cyclic attributes.
----
In this PR, I've minimally fixed up `rustdoc` so that it compiles and passes tests. This is just the minimal necessary fixes to handle the switch to `MacroKinds`, and it only works for macros that don't actually have multiple kinds. This will panic (with a `todo!`) if it encounters a macro with multiple kinds.
rustdoc needs further fixes to handle macros with multiple kinds, and to handle attributes and derive macros that aren't proc macros. I'd appreciate some help from a rustdoc expert on that.
----
r? ````````@petrochenkov````````
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One for `--extern` options and another for `extern crate` items.
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This eliminates the case in `failed_to_match_macro` to check for a
function-like invocation of a macro with no function-like rules.
Instead, macro kind mismatches now result in an unresolved macro, and we
detect this case in `unresolved_macro_suggestions`, which now carefully
distinguishes between a kind mismatch and other errors.
This also handles cases of forward-referenced attributes and cyclic
attributes.
Expand test coverage to include all of these cases.
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Review everything that uses `MacroKind`, and switch anything that could
refer to more than one kind to use `MacroKinds`.
Add a new `SyntaxExtensionKind::MacroRules` for `macro_rules!` macros,
using the concrete `MacroRulesMacroExpander` type, and have it track
which kinds it can handle. Eliminate the separate optional `attr_ext`,
now that a `SyntaxExtension` can handle multiple macro kinds.
This also avoids the need to downcast when calling methods on
`MacroRulesMacroExpander`, such as `get_unused_rule`.
Integrate macro kind checking into name resolution's
`sub_namespace_match`, so that we only find a macro if it's the right
type, and eliminate the special-case hack for attributes.
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When trying to construct a struct that has a public field of a private type, suggest using `..` if that field has a default value.
```
error[E0603]: struct `Priv1` is private
--> $DIR/non-exhaustive-ctor.rs:25:39
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LL | let _ = S { field: (), field1: m::Priv1 {} };
| ------ ^^^^^ private struct
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| while setting this field
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note: the struct `Priv1` is defined here
--> $DIR/non-exhaustive-ctor.rs:14:4
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LL | struct Priv1 {}
| ^^^^^^^^^^^^
help: the field `field1` you're trying to set has a default value, you can use `..` to use it
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LL | let _ = S { field: (), .. };
| ~~
```
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Implement declarative (`macro_rules!`) attribute macros (RFC 3697)
This implements [RFC 3697](https://github.com/rust-lang/rust/issues/143547), "Declarative (`macro_rules!`) attribute macros".
I would suggest reading this commit-by-commit. This first introduces the
feature gate, then adds parsing for attribute rules (doing nothing with them),
then adds the ability to look up and apply `macro_rules!` attributes by path,
then adds support for local attributes, then adds a test, and finally makes
various improvements to errors.
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Teach the resolver to consider `macro_rules` macros when looking for a
local attribute. When looking for an attribute and considering a
`macro_rules` macro, load the macro in order to see if it has attribute
rules.
Include a FIXME about tracking multiple macro kinds for a Def instead.
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Add infrastructure to apply an attribute macro given argument tokens and
body tokens.
Teach the resolver to consider `macro_rules` macros when looking for an
attribute via a path.
This does not yet handle local `macro_rules` attributes.
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Resolver: introduce a conditionally mutable Resolver for (non-)speculative resolution.
This pr introduces a `CmResolver`, a wrapper around the main resolver which gives out mutable access given a condition.
`CmResolver` only allows mutation when we’re not in speculative import resolution. This ensures we can’t accidentally mutate the resolver during this process, which is important as we move towards a batched resolution algorithm.
This also changes functions that are used during speculative import resolution to take a `CmResolver` instead of a `&mut Resolver`.
Also introduces a new kind of "smart pointer" which has the behaviour described above:
```rust
/// A wrapper around a mutable reference that conditionally allows mutable access.
pub(crate) struct RefOrMut<'a, T> {
p: &'a mut T,
mutable: bool,
}
type CmResolver<'r, 'ra, 'tcx> = RefOrMut<'r, Resolver<'ra, 'tcx>>;
```
r? petrochenkov
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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resolve: Cleanups and micro-optimizations to extern prelude
This is what can be done without changing the structure of `ExternPreludeEntry`, like in https://github.com/rust-lang/rust/pull/144737.
See individual commits for details.
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Detect more `cfg`d out items in resolution errors
Use a visitor to collect *all* items (including those nested) that were stripped behind a `cfg` condition.
```
error[E0425]: cannot find function `f` in this scope
--> $DIR/nested-cfg-attrs.rs:4:13
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LL | fn main() { f() }
| ^ not found in this scope
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note: found an item that was configured out
--> $DIR/nested-cfg-attrs.rs:2:4
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LL | fn f() {}
| ^
note: the item is gated here
--> $DIR/nested-cfg-attrs.rs:1:35
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LL | #[cfg_attr(all(), cfg_attr(all(), cfg(FALSE)))]
| ^^^^^^^^^^
```
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```
error[E0433]: failed to resolve: could not find `doesnt_exist` in `inner`
--> $DIR/diagnostics-cross-crate.rs:18:23
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LL | cfged_out::inner::doesnt_exist::hello();
| ^^^^^^^^^^^^ could not find `doesnt_exist` in `inner`
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note: found an item that was configured out
--> $DIR/auxiliary/cfged_out.rs:6:13
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LL | #[cfg(false)]
| ----- the item is gated here
LL | pub mod doesnt_exist {
| ^^^^^^^^^^^^
```
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Use a visitor to collect *all* items (including those nested) that were stripped behind a `cfg` condition.
```
error[E0425]: cannot find function `f` in this scope
--> $DIR/nested-cfg-attrs.rs:4:13
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LL | fn main() { f() }
| ^ not found in this scope
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note: found an item that was configured out
--> $DIR/nested-cfg-attrs.rs:2:4
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LL | fn f() {}
| ^
note: the item is gated here
--> $DIR/nested-cfg-attrs.rs:1:35
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LL | #[cfg_attr(all(), cfg_attr(all(), cfg(FALSE)))]
| ^^^^^^^^^^
```
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Do not write dummy bindings to extern prelude.
Use more precise `Used::Scope` while recording use and remove now redundant `introduced_by_item` check.
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It's not used in `rustc_middle`, and `rustc_resolve` is a better place
for it.
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