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Also make the file have a third mode for where everything is cfg'd out to make sure it's an early error.
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More tests for non-exhaustive C-like enums in FFI
Add a few more tests for the `improper_ctypes` lint as found with the [varnish-rs](https://github.com/gquintard/varnish-rs) project.
This follows up on #116831, fixed in #116863 by ``@workingjubilee`` - I have been seeing these fail with the bindgen-generated non-exhaustive enums inside other structs. Seems the issue does not exist in the primary branch, so this PR just makes sure more cases are covered for the future.
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library feature"
This is consistent with all other diagnostics I could find containing
features and enables the use of `DiagSymbolList` for generalizing
diagnostics for unstable library features to multiple features.
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Use `token_descr` more in error messages
This is the first two commits from #124141, put into their own PR to get things rolling. Commit messages have the details.
r? ``@estebank``
cc ``@petrochenkov``
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Don't lint `irrefutable_let_patterns` on leading patterns if `else if` let-chains
fixes #128661
Is there any preference where the test goes? There looks to be several places it could fit.
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let-chains.
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Remove the "which is required by `{root_obligation}`" post-script in
"the trait `X` is not implemented for `Y`" explanation in E0277. This
information is already conveyed in the notes explaining requirements,
making it redundant while making the text (particularly in labels)
harder to read.
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
vs the prior
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`, which is required by `Option<NotCopy>: Copy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
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Add a few more possibly false-positive tests for the `improper_ctypes` lint
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Much like the previous commit.
I think the removal of "the token" in each message is fine here. There
are many more error messages that mention tokens without saying "the
token" than those that do say it.
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r=RalfJung
Finish stabilization of `result_ffi_guarantees`
The internal linting has been changed, so all that is left is making sure we stabilize what we want to stabilize.
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r=jieyouxu
warn less about non-exhaustive in ffi
Bindgen allows generating `#[non_exhaustive] #[repr(u32)]` enums. This results in nonintuitive nonlocal `improper_ctypes` warnings, even when the types are otherwise perfectly valid in C.
Adjust for actual tooling expectations by avoiding warning on simple enums with only unit variants.
Closes https://github.com/rust-lang/rust/issues/116831
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Change orphan hint from "only" to "any uncovered type inside..."
Fix #128390
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Compiler & its UI tests: Rename remaining occurrences of "object safe" to "dyn compatible"
Follow-up to #130826.
Part of #130852.
1. 1st commit: Fix stupid oversights. Should've been part of #130826.
2. 2nd commit: Rename the unstable feature `object_safe_for_dispatch` to `dyn_compatible_for_dispatch`. Might not be worth the churn, you decide.
3. 3rd commit: Apply the renaming to all UI tests (contents and paths).
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r=compiler-errors
Fix `adt_const_params` leaking `{type error}` in error msg
Fixes the confusing diagnostic described in #118179. (users would see `{type error}` in some situations, which is pretty weird)
`adt_const_params` tracking issue: #95174
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avoid `{type error}` being leaked in user-facing messages,
particularly when using the `adt_const_params` feature
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collecting implied bounds, not super bounds
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Bindgen allows generating `#[non_exhaustive] #[repr(u32)]` enums.
This results in nonintuitive nonlocal `improper_ctypes` warnings,
even when the types are otherwise perfectly valid in C.
Adjust for actual tooling expectations by avoiding warning on
simple enums with only unit variants.
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closures
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Tweak unreachable lint wording
Some tweaks to the notes added in https://github.com/rust-lang/rust/pull/128034.
r? `@estebank`
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Rollup of 8 pull requests
Successful merges:
- #128273 (Improve `Ord` violation help)
- #128807 (run-make: explaing why fmt-write-bloat is ignore-windows)
- #128903 (rustdoc-json-types `Discriminant`: fix typo)
- #128905 (gitignore: Add Zed and Helix editors)
- #128908 (diagnostics: do not warn when a lifetime bound infers itself)
- #128909 (Fix dump-ice-to-disk for RUSTC_ICE=0 users)
- #128910 (Differentiate between methods and associated functions in diagnostics)
- #128923 ([rustdoc] Stop showing impl items for negative impls)
r? `@ghost`
`@rustbot` modify labels: rollup
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Accurately refer to assoc fn without receiver as assoc fn instead of methods.
Add `AssocItem::descr` method to centralize where we call methods and associated functions.
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