Add suggestion to remove `derive()` if invoked macro is non-derive
Adds to the existing `expected derive macro, found {}` error message:
```
help: remove the surrounding "derive()":
--> $DIR/macro-path-prelude-fail-4.rs:1:3
|
LL | #[derive(inline)]
| ^^^^^^^ ^
```
This suggestion will either fix the issue, in the case that the macro was valid, or provide a better error message if not
Not ready for merge yet, as the highlighted span is only valid for trivial formatting. Is there a nice way to get the parent span of the macro path within `smart_resolve_macro_path`?
Closes#109589
Fix a couple ICEs in the new `CastKind::Transmute` code
Check the sizes of the immediates, rather than the overall types, when deciding whether we can convert types without going through memory.
Fixes#110005Fixes#109992Fixes#110032
cc `@matthiaskrgr`
Reverts PR #108031
Fixes (doesnt close until beta backported) #109746
This reverts commit e3f9db5fc319c6d8eee5d47d216ea6a426070c41.
This reverts commit 98b82aedba3f3f581e89df54352914b27f42c6f7.
This reverts commit 380fa264132ad481e73cbbf0f3a0feefd99a1d78.
Migrate remainder of rustc_ty_utils to `SessionDiagnostic`
This moves the remaining errors in `rust_ty_utils` to `SessionsDiagnostic`.
r? ``@davidtwco``
Instantiate instead of erasing binder when probing param methods
Fixes#108836
There is a really old comment saying that a `WhereClauseCandidate` probe candidate "should not contain any inference variables", but I'm not really confident that that comment applies anymore. In contrast, other candidates that we assemble during method probe contain inference variables in their substitutions (e.g. `InherentImplCandidate`)...
Since this change is made only to support a nightly feature, I'm happy to gate the new behavior behind this feature flag or discuss it further.
r? types
The shadowing lead to an incorrect comparison. Rename it and compare it
properly. compiler-errors told me that I should just include the fix
here without a test.
Better diagnostic when pattern matching tuple structs
Fixes#108284
When trying to pattern match a tuple struct we might get a flawed error message if there are missing fields. E.g.
```
let x = Foo(100, 200);
if let Foo { 0: bar } = x { ... }
```
Produces this error:
```
error[E0769]: tuple variant `Foo` written as struct variant
--> hello.rs:5:12
|
5 | if let Foo { 0: foo } = x {
| ^^^^^^^^^^^^^^
|
help: use the tuple variant pattern syntax instead
|
5 | if let Foo(_, _) = x {
| ~~~~~~
```
Which doesn't highlight that we can still use the struct syntax but we need to fill missing fields. This pr changes this error to:
```
error[E0027]: pattern does not mention field `1`
--> hello.rs:5:12
|
5 | if let Foo { 0: foo } = x {
| ^^^^^^^^^^^^^^ missing field `1`
|
help: include the missing field in the pattern
|
5 | if let Foo { 0: foo, 1: _ } = x {
| ~~~~~~~~
help: if you don't care about this missing field, you can explicitly ignore it
|
5 | if let Foo { 0: foo, .. } = x {
| ~~~~~~
```
resolve: Preserve reexport chains in `ModChild`ren
This may be potentially useful for
- avoiding uses of `hir::ItemKind::Use` (which usually lead to correctness issues)
- preserving documentation comments on all reexports, including those from other crates
- preserving and checking stability/deprecation info on reexports
- all kinds of diagnostics
The second commit then migrates some hacky logic from rustdoc to `module_reexports` to make it simpler and more correct.
Ideally rustdoc should use `module_reexports` immediately at the top level, so `hir::ItemKind::Use`s are never used.
The second commit also fixes issues with https://github.com/rust-lang/rust/pull/109330 and therefore
Fixes https://github.com/rust-lang/rust/issues/109631
Fixes https://github.com/rust-lang/rust/issues/109614
Fixes https://github.com/rust-lang/rust/issues/109424
Suggest defining const parameter when appropriate
Helps a bit with #91119.
Following #105523's lead, I use placeholder `/* Type */` instead of `_` in the suggestion.
It should be easier for newcomers to parse.
`@rustbot` label A-diagnostics
r? diagnostics
Add tier 3 no_std x86 support for QNX Neutrino RTOS, version 7.0
This PR adds the target `i586-pc-nto-qnx700`, which targets QNX Neutrino RTOS version 7.0 on x86 32-bit targets.
cc: `@flba-eb` `@gh-tr`
This target falls under the umbrella of Tier 3 QNX Neutrino RTOS support documented in `nto-qnx.md` and previously started with #102701.
