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Accurate `use` rename suggestion span
When suggesting to rename an import with `as`, use a smaller span to render the suggestion with a better format:
```
error[E0252]: the name `baz` is defined multiple times
--> $DIR/issue-25396.rs:4:5
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LL | use foo::baz;
| -------- previous import of the module `baz` here
LL | use bar::baz;
| ^^^^^^^^ `baz` reimported here
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= note: `baz` must be defined only once in the type namespace of this module
help: you can use `as` to change the binding name of the import
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LL | use bar::baz as other_baz;
| ++++++++++++
```
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When suggesting to rename an import with `as`, use a smaller span to
render the suggestion with a better format:
```
error[E0252]: the name `baz` is defined multiple times
--> $DIR/issue-25396.rs:4:5
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LL | use foo::baz;
| -------- previous import of the module `baz` here
LL | use bar::baz;
| ^^^^^^^^ `baz` reimported here
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= note: `baz` must be defined only once in the type namespace of this module
help: you can use `as` to change the binding name of the import
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LL | use bar::baz as other_baz;
| ++++++++++++
```
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This is a very large commit since a lot needs to be changed in order to
make the tests pass. The salient changes are:
- `ConstArgKind` gets a new `Path` variant, and all const params are now
represented using it. Non-param paths still use `ConstArgKind::Anon`
to prevent this change from getting too large, but they will soon use
the `Path` variant too.
- `ConstArg` gets a distinct `hir_id` field and its own variant in
`hir::Node`. This affected many parts of the compiler that expected
the parent of an `AnonConst` to be the containing context (e.g., an
array repeat expression). They have been changed to check the
"grandparent" where necessary.
- Some `ast::AnonConst`s now have their `DefId`s created in
rustc_ast_lowering rather than `DefCollector`. This is because in some
cases they will end up becoming a `ConstArgKind::Path` instead, which
has no `DefId`. We have to solve this in a hacky way where we guess
whether the `AnonConst` could end up as a path const since we can't
know for sure until after name resolution (`N` could refer to a free
const or a nullary struct). If it has no chance as being a const
param, then we create a `DefId` in `DefCollector` -- otherwise we
decide during ast_lowering. This will have to be updated once all path
consts use `ConstArgKind::Path`.
- We explicitly use `ConstArgHasType` for array lengths, rather than
implicitly relying on anon const type feeding -- this is due to the
addition of `ConstArgKind::Path`.
- Some tests have their outputs changed, but the changes are for the
most part minor (including removing duplicate or almost-duplicate
errors). One test now ICEs, but it is for an incomplete, unstable
feature and is now tracked at #127009.
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Fix import suggestion ice
Fixes #127302
#127302 only crash in edition 2015
#120074 can only reproduced in edition 2021
so I added revisions in test file.
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Previously we would only mention that the item was gated out, and opportunisitically mention the feature flag name when possible. We now point to the place where the item was gated, which can be behind layers of macro indirection, or in different modules.
```
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 | pub mod doesnt_exist {
| ^^^^^^^^^^^^
note: the item is gated here
--> $DIR/auxiliary/cfged_out.rs:5:5
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LL | #[cfg(FALSE)]
| ^^^^^^^^^^^^^
```
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Use verbose style when suggesting changing `const` with `let`
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Use field ident spans directly instead of the full field span in diagnostics on local fields
This improves diagnostics and avoids having to store the `DefId`s of fields
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Attribute cleanups
More refactoring done while trying to fix the final remaining test failure for #124141.
r? `@petrochenkov`
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The only place it is meaningfully used is in a panic message in
`TokenStream::from_ast`. But `node.span()` doesn't need to be printed
because `node` is also printed and it must contain the span.
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on local fields
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r=GuillaumeGomez
rustdoc: update to pulldown-cmark 0.11
r? rustdoc
This pull request updates rustdoc to the latest version of pulldown-cmark. Along with adding new markdown extensions (which this PR doesn't enable), the new pulldown-cmark version also fixes a large number of bugs. Because all text files successfully parse as markdown, these bugfixes change the output, which can break people's existing docs.
A crater run, https://github.com/rust-lang/rust/pull/121659, has already been run for this change.
The first commit upgrades and fixes rustdoc. The second commit adds a lint for the footnote and block quote parser changes, which break the largest numbers of docs in the Crater run. The strikethrough change was mitigated in pulldown-cmark itself.
Unblocks https://github.com/rust-lang/rust-clippy/pull/12876
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Change return-type-notation to use `(..)`
Aligns the syntax with the current wording of [RFC 3654](https://github.com/rust-lang/rfcs/pull/3654). Also implements rustfmt support (along with making a match exhaustive).
Tracking:
* https://github.com/rust-lang/rust/issues/109417
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ast: Standardize visiting order for attributes and node IDs
This should only affect `macro_rules` scopes and order of diagnostics.
Also add a deprecation lint for `macro_rules` called outside of their scope, like in https://github.com/rust-lang/rust/issues/124535.
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Add `rust_analyzer` as a predefined tool
Given all the other rust-lang tools have it, I'd expect r-a to have it too. (we have a few ideas for using this https://github.com/rust-lang/rust-analyzer/issues/11556).
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`StaticForeignItem` and `StaticItem` are the same
The struct `StaticItem` and `StaticForeignItem` are the same, so remove `StaticForeignItem`. Having them be separate is unique to `static` items -- unlike `ForeignItemKind::{Fn,TyAlias}`, which use the normal AST item.
r? ``@spastorino`` or ``@oli-obk``
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delegation: Implement glob delegation
Support delegating to all trait methods in one go.
Overriding globs with explicit definitions is also supported.
The implementation is generally based on the design from https://github.com/rust-lang/rfcs/pull/3530#issuecomment-2020869823, but unlike with list delegation in https://github.com/rust-lang/rust/pull/123413 we cannot expand glob delegation eagerly.
We have to enqueue it into the queue of unexpanded macros (most other macros are processed this way too), and then a glob delegation waits in that queue until its trait path is resolved, and enough code expands to generate the identifier list produced from the glob.
Glob delegation is only allowed in impls, and can only point to traits.
Supporting it in other places gives very little practical benefit, but significantly raises the implementation complexity.
Part of https://github.com/rust-lang/rust/issues/118212.
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This paves the way for tracking more state (e.g. error tainting) in the diagnostic context handle
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mark undetermined if target binding in current ns is not got
Fixes #126376
Fixes #126389
Add a branch to handle more cases...
r? `@petrochenkov`
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Resolve elided lifetimes in assoc const to static if no other lifetimes are in scope
Implements the change to elided lifetime resolution in *associated consts* subject to FCP here: https://github.com/rust-lang/rust/issues/125190#issue-2301532282
Specifically, walk the enclosing lifetime ribs in an associated const, and if we find no other lifetimes, then resolve to `'static`.
Also make it work for traits, but don't lint -- just give a hard error in that case.
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And fix diagnostics for `self` from a macro.
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in scope
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When both `std::` and `core::` items are available, only suggest the
`std::` ones. We ensure that in `no_std` crates we suggest `core::`
items.
Ensure that the list of items suggested to be imported are always in the
order of local crate items, `std`/`core` items and finally foreign crate
items.
Tweak wording of import suggestion: if there are multiple items but they
are all of the same kind, we use the kind name and not the generic "items".
Fix #83564.
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Delegation: fix ICE on late diagnostics
fixes https://github.com/rust-lang/rust/issues/124342
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Spruce up the diagnostics of some early lints
Implement the various "*(note to myself) in a follow-up PR we should turn parts of this message into a subdiagnostic (help msg or even struct sugg)*" drive-by comments I left in #124417 during my review.
For context, before #124417, only a few early lints touched/decorated/customized their diagnostic because the former API made it a bit awkward. Likely because of that, things that should've been subdiagnostics were just crammed into the primary message. This PR rectifies this.
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Change the algorithm which determines whether a self lifetime can be
used for return type lifetime elision, such that we consider lifetimes
attached to any reference in the self type, so long as Self can be found
anywhere inside the type of that reference.
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This reverts commit ddc5f9b6c1f21da5d4596bf7980185a00984ac42.
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Unsafe extern blocks
This implements RFC 3484.
Tracking issue #123743 and RFC https://github.com/rust-lang/rfcs/pull/3484
This is better reviewed commit by commit.
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Rollup of 9 pull requests
Successful merges:
- #124840 (resolve: mark it undetermined if single import is not has any bindings)
- #125622 (Winnow private method candidates instead of assuming any candidate of the right name will apply)
- #125648 (Remove unused(?) `~/rustsrc` folder from docker script)
- #125672 (Add more ABI test cases to miri (RFC 3391))
- #125800 (Fix `mut` static task queue in SGX target)
- #125871 (Orphanck[old solver]: Consider opaque types to never cover type parameters)
- #125893 (Handle all GVN binops in a single place.)
- #126008 (Port `tests/run-make-fulldeps/issue-19371` to ui-fulldeps)
- #126032 (Update description of the `IsTerminal` example)
r? `@ghost`
`@rustbot` modify labels: rollup
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